U.S. patent application number 15/794682 was filed with the patent office on 2018-02-15 for access control method, base station, user equipment, and mobility management entity.
This patent application is currently assigned to HUAWEI TECHNOLOGIES CO., LTD.. The applicant listed for this patent is HUAWEI TECHNOLOGIES CO., LTD.. Invention is credited to Dong CHEN, Philippe REININGER, Hongzhuo ZHANG, Yang ZHAO.
Application Number | 20180049102 15/794682 |
Document ID | / |
Family ID | 50933677 |
Filed Date | 2018-02-15 |
United States Patent
Application |
20180049102 |
Kind Code |
A1 |
ZHANG; Hongzhuo ; et
al. |
February 15, 2018 |
ACCESS CONTROL METHOD, BASE STATION, USER EQUIPMENT, AND MOBILITY
MANAGEMENT ENTITY
Abstract
The present invention provides an access control method, a base
station, user equipment, and a mobility management entity, where
the access control method includes: receiving, by the base station,
a temporary identifier and a PLMN available indication that are of
the UE and sent by the UE; receiving a service request message sent
by the UE, and determining a serving MME of the UE according to a
GMMEI in the temporary identifier of the UE; and sending the
service request message and the PLMN available indication to the
serving MME of the UE, so that the serving MME of the UE sends a
redirection indication, and the UE registers with an HPLMN of the
UE. Therefore, in a network sharing scenario, the UE can select the
home PLMN of the UE as a serving PLMN of the UE as early as
possible.
Inventors: |
ZHANG; Hongzhuo; (Shanghai,
CN) ; ZHAO; Yang; (Shanghai, CN) ; CHEN;
Dong; (Shanghai, CN) ; REININGER; Philippe;
(Issy Les Moulineaux, FR) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
HUAWEI TECHNOLOGIES CO., LTD. |
Shenzhen |
|
CN |
|
|
Assignee: |
HUAWEI TECHNOLOGIES CO.,
LTD.
Shenzhen
CN
|
Family ID: |
50933677 |
Appl. No.: |
15/794682 |
Filed: |
October 26, 2017 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
14735839 |
Jun 10, 2015 |
9820214 |
|
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15794682 |
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PCT/CN2012/086353 |
Dec 11, 2012 |
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14735839 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H04W 84/042 20130101;
H04W 8/12 20130101; H04W 48/04 20130101; H04W 36/12 20130101; H04W
88/08 20130101; H04W 8/14 20130101; H04W 28/08 20130101; H04W 8/26
20130101; H04W 48/18 20130101; H04W 88/005 20130101 |
International
Class: |
H04W 48/04 20090101
H04W048/04; H04W 48/18 20090101 H04W048/18; H04W 28/08 20090101
H04W028/08 |
Claims
1. A method, comprising: sending, by a terminal device, a radio
resource control connection request message to a base station,
wherein radio resource control connection request message comprises
a temporary identifier of the terminal device; in response to the
radio resource control connection request message, receiving, by
the terminal device, a radio resource control connection setup
message from the base station; sending, by the terminal device, a
radio resource control connection setup complete message to the
base station, wherein the radio resource control connection setup
complete message comprises a public land mobile network (PLMN)
available indication, wherein the PLMN available indication
indicates that an home PLMN of the terminal device is available, or
indicates that an equivalent home PLMN of the terminal device is
available; and sending, by terminal device, a service request
message to the base station to trigger the base station sends the
service request message and the PLMN available indication to a
serving mobility management network element indicated by the
temporary identifier.
2. The method of claim 1, wherein the service request message is a
non-access stratum message.
3. The method of claim 1, wherein the temporary identifier is a
short temporary mobile subscriber identity, the short temporary
mobile subscriber identity comprises a global mobility management
entity identifier, and the serving mobility management network
element is indicated by the global mobility management entity
identifier.
4. The method of claim 1, wherein the PLMN available indication
indicates that an equivalent home PLMN of the terminal device is
available, the radio resource control connection setup complete
message further comprises an identifier of the equivalent home PLMN
selected by the terminal device.
5. The method of claim 1, wherein after sending the service request
message, the method further comprises: receiving, by the terminal
device, a service response message sent by the serving mobility
management network element, wherein the service response message
carries a redirection indication, a cause of redirection is that
the terminal device is reselected to a target PLMN of redirection,
and the cause of redirection comprises that the terminal device is
redirected to a home PLMN of the terminal device, or the terminal
device is redirected to an equivalent home PLMN of the terminal
device, or a registered PLMN of the terminal device changes, or a
home PLMN of the terminal device is available, or an equivalent
home PLMN of the terminal device is available; and the service
response message is sent to the terminal device after the serving
mobility management entity of the terminal device receives the PLMN
available indication sent by the base station.
6. An apparatus, comprising: a storage medium including executable
instructions; and a processor; wherein the executable instructions,
when executed by the processor, cause the apparatus to: send a
radio resource control connection request message to a base
station, wherein radio resource control connection request message
comprises a temporary identifier of the terminal device; receive a
radio resource control connection setup message in response to the
radio resource control connection request message; send a radio
resource control connection setup complete message to the base
station, wherein the radio resource control connection setup
complete message comprises a public land mobile network (PLMN)
available indication, wherein the PLMN available indication
indicates that an home PLMN of the terminal device is available, or
indicates that an equivalent home PLMN of the terminal device is
available; and send a service request message to the base station
to trigger the base station sends the service request message and
the PLMN available indication to a serving mobility management
network element indicated by the temporary identifier.
7. The apparatus of claim 6, wherein the service request message is
a non-access stratum message.
8. The apparatus of claim 6, wherein the temporary identifier is a
short temporary mobile subscriber identity, the short temporary
mobile subscriber identity comprises a global mobility management
entity identifier, and the serving mobility management network
element is indicated by the global mobility management entity
identifier.
9. The apparatus of claim 6, wherein the PLMN available indication
indicates that an equivalent home PLMN of the terminal device is
available, the radio resource control connection setup complete
message further comprises an identifier of the equivalent home PLMN
selected by the terminal device.
10. The apparatus of claim 9, wherein the executable instructions,
when executed by the processor, cause the apparatus to: receiving a
service response message sent by the serving mobility management
network element, wherein the service response message carries a
redirection indication, a cause of redirection is that the terminal
device is reselected to a target PLMN of redirection, and the cause
of redirection comprises that the terminal device is redirected to
a home PLMN of the terminal device, or the terminal device is
redirected to an equivalent home PLMN of the terminal device, or a
registered PLMN of the terminal device changes, or a home PLMN of
the terminal device is available, or an equivalent home PLMN of the
terminal device is available; and the service response message is
sent to the terminal device after the serving mobility management
entity of the terminal device receives the PLMN available
indication sent by the base station.
11. A computer-readable storage medium comprising instructions
which, when executed by a computer, cause the computer to carry out
the steps of: sending a radio resource control connection request
message to a base station, wherein radio resource control
connection request message comprises a temporary identifier of the
terminal device; in response to the radio resource control
connection request message, receiving a radio resource control
connection setup message from the base station; sending a radio
resource control connection setup complete message to the base
station, wherein the radio resource control connection setup
complete message comprises a public land mobile network (PLMN)
available indication, wherein the PLMN available indication
indicates that an home PLMN of the terminal device is available, or
indicates that an equivalent home PLMN of the terminal device is
available; and sending a service request message to the base
station to trigger the base station sends the service request
message and the PLMN available indication to a serving mobility
management network element indicated by the temporary
identifier.
12. The computer-readable storage medium of claim 11, wherein the
service request message is a non-access stratum message.
13. The computer-readable storage medium of claim 11, wherein the
temporary identifier is a short temporary mobile subscriber
identity, the short temporary mobile subscriber identity comprises
a global mobility management entity identifier, and the serving
mobility management network element is indicated by the global
mobility management entity identifier.
14. The computer-readable storage medium of claim 11, wherein the
PLMN available indication indicates that an equivalent home PLMN of
the terminal device is available, the radio resource control
connection setup complete message further comprises an identifier
of the equivalent home PLMN selected by the terminal device.
15. The computer-readable storage medium of claim 14, further
comprising instructions which, when executed by a computer, cause
the computer to carry out the steps of: receiving a service
response message sent by the serving mobility management network
element, wherein the service response message carries a redirection
indication, a cause of redirection is that the terminal device is
reselected to a target PLMN of redirection, and the cause of
redirection comprises that the terminal device is redirected to a
home PLMN of the terminal device, or the terminal device is
redirected to an equivalent home PLMN of the terminal device, or a
registered PLMN of the terminal device changes, or a home PLMN of
the terminal device is available, or an equivalent home PLMN of the
terminal device is available; and the service response message is
sent to the terminal device after the serving mobility management
entity of the terminal device receives the PLMN available
indication sent by the base station.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is a continuation of U.S. patent
application Ser. No. 14/735,839, filed on Jun. 10, 2015, which is a
continuation of International Application No. PCT/CN2012/086353,
filed on Dec. 11, 2012. All of the afore-mentioned patent
applications are hereby incorporated by reference in their
entireties.
TECHNICAL FIELD
[0002] The present invention relates to the field of communications
technologies, and in particular, to an access control method, a
base station, user equipment, and a mobility management entity.
BACKGROUND
[0003] Construction of a mobile network requires a huge amount of
funds, which brings heavy financial pressure to an operator. A
network sharing technology can enable multiple operators to provide
services for their respective subscribers by using a shared mobile
network, significantly reducing costs for repeated construction of
mobile networks. Currently, there are mainly four network sharing
manners: (1) sharing a site; (2) sharing an access network; (3)
sharing both an access network and a core network; (4) sharing a
geographical area network.
[0004] A Long Term Evolution (LTE for short) mobile communications
system is used as an example. User equipment (UE for short) in an
idle state initiates a service request procedure before sending
uplink data. During an UE access process, the UE selects a
previously registered mobility management entity (MME for short) as
its serving MME. Therefore, an operator serving the UE does not
change in a service access procedure. However, in a network sharing
scenario, when moving from a network of operator A to a shared
network on which both operator A and operator B can provide a
service, a subscriber of operator B cannot select, in a timely
manner, the home operator B of the subscriber as a serving operator
of the subscriber.
[0005] In addition, in a network scenario in which an access
network is shared, or in a network scenario in which both an access
network and a core network are shared, an LTE mobile communications
system is still used as an example. A base station (e.g., evolved
NodeB, eNB for short) broadcasts, in a broadcast message, a list of
operators supported by the evolved NodeB, that is, a public land
mobile network (PLMN for short) list. A UE reads the operator list
(PLMN list) in the broadcast message, selects one PLMN from the
operator list, and sends the selected PLMN to the eNB in a Radio
Resource Control (RRC for short) connection setup procedure, and
the eNB selects a core network node of this operator for the UE
according to the selected PLMN, to provide a service for the UE.
However, when a core network node of an operator is overloaded,
subsequent access of a subscriber of this operator cannot be
controlled in the prior art. Moreover, in an enhanced network
sharing scenario, when a quantity of access subscribers of an
operator reaches an upper limit of a rented share, subsequent
access of a subscriber of this operator cannot be controlled in the
prior art. In addition, when a roaming subscriber accesses a shared
network, load sharing cannot be performed among multiple operators.
As a result, an operator ranking first in a broadcast list tends to
be overloaded, or achieves an excessive income from roaming
subscribers.
SUMMARY
[0006] The present invention provides an access control method, a
base station, user equipment, and a mobility management entity, so
that in a network sharing scenario, the user equipment can register
with a home operator of the user equipment as early as
possible.
[0007] A first aspect of the present invention provides an access
control method, including: [0008] receiving, by a base station, a
temporary identifier and a public land mobile network PLMN
available indication that are of user equipment and sent by the
user equipment; [0009] receiving, by the base station, a service
request message sent by the user equipment, and determining a
serving mobility management entity of the user equipment according
to a global mobility management entity identifier in the temporary
identifier of the user equipment; and [0010] sending, by the base
station, the service request message and the PLMN available
indication to the serving mobility management entity of the user
equipment.
[0011] A second aspect of the present invention provides an access
control method, including: [0012] receiving, by a mobility
management entity, a service request message and a public land
mobile network PLMN available indication that are sent by a base
station, where the mobility management entity is a serving mobility
management entity of user equipment, and the service request
message and the PLMN available indication are sent to the mobility
management entity after the base station receives a temporary
identifier and the PLMN available indication that are of the user
equipment and sent by the user equipment, receives the service
request message sent by the user equipment, and determines the
serving mobility management entity of the user equipment according
to a global mobility management entity identifier in the temporary
identifier of the user equipment; and [0013] sending, by the
mobility management entity, a redirection indication, so that the
user equipment registers with a target PLMN of redirection.
[0014] A third aspect of the present invention provides an access
control method, including: [0015] sending, by user equipment, a
temporary identifier and a public land mobile network PLMN
available indication that are of the user equipment to a base
station; and [0016] sending, by the user equipment, a service
request message to the base station, so that after receiving the
service request message sent by the user equipment, the base
station determines a serving mobility management entity of the user
equipment according to a global mobility management entity
identifier in the temporary identifier of the user equipment, and
sends the service request message and the PLMN available indication
to the serving mobility management entity of the user
equipment.
[0017] A fourth aspect of the present invention provides an access
control method, including: [0018] reading, by user equipment, an
operator list broadcast by a cell; and [0019] if the operator list
does not include a public land mobile network PLMN with which the
user equipment successfully registers most recently, a home PLMN of
the user equipment, a user controlled PLMN, or an operator
controlled PLMN, randomly selecting, by the user equipment when the
operator list includes at least two visited PLMNs, one PLMN from
the at least two visited PLMNs for access.
[0020] A fifth aspect of the present invention provides an access
control method, including: [0021] reading, by user equipment, an
operator list and an operator barring indication that are broadcast
by a cell, where the operator barring indication is used to
indicate an identifier of a PLMN that is barred for access; and
[0022] if the operator list does not include a public land mobile
network PLMN with which the user equipment successfully registers
most recently, a home PLMN of the user equipment, a user controlled
PLMN, or an operator controlled PLMN, selecting, by the user
equipment when the operator list includes at least two visited
PLMNs, one PLMN except the PLMN indicated by the operator barring
indication from the at least two visited PLMNs for access.
[0023] A sixth aspect of the present invention provides an access
control method, including: [0024] reading, by user equipment, an
operator list and a preferred operator indication that are
broadcast by a cell, where the preferred operator indication is
used to indicate an identifier of a public land mobile network PLMN
that is preferably accessed by a roaming subscriber; and [0025] if
the operator list does not include a PLMN with which the user
equipment successfully registers most recently, a home PLMN of the
user equipment, a user controlled PLMN, or an operator controlled
PLMN, selecting, by the user equipment, the PLMN indicated by the
preferred operator indication from the operator list for
access.
[0026] A seventh aspect of the present invention provides an access
control method, including: [0027] obtaining, by a base station, an
operator list and an operator barring indication, where the
operator barring indication is used to indicate an identifier of a
PLMN that is barred for access; and [0028] broadcasting, by the
base station, the operator list and the operator barring
indication, so that after the user equipment reads the operator
list and the operator barring indication, and when the operator
list does not include a public land mobile network PLMN with which
the user equipment successfully registers most recently, a home
PLMN of the user equipment, a user controlled PLMN, or an operator
controlled PLMN, the user equipment selects, when the operator list
includes at least two visited PLMNs, one PLMN except the PLMN
indicated by the operator barring indication from the at least two
visited PLMNs for access.
[0029] An eighth aspect of the present invention provides an access
control method, including: [0030] obtaining, by a base station, an
operator list and a preferred operator indication, where the
preferred operator indication is used to indicate an identifier of
a public land mobile network PLMN that is preferably accessed by a
roaming subscriber; and [0031] broadcasting, by the base station,
the operator list and the preferred operator indication, so that
after the user equipment reads the operator list and the preferred
operator indication, and when the operator list does not include a
PLMN with which the user equipment successfully registers most
recently, a home PLMN of the user equipment, a user controlled
PLMN, or an operator controlled PLMN, the user equipment selects
the PLMN indicated by the preferred operator indication from the
operator list for access.
[0032] A ninth aspect of the present invention provides a base
station, including: [0033] a receiving module, configured to:
receive a temporary identifier and a public land mobile network
PLMN available indication that are of user equipment and sent by
the user equipment; and receive a service request message sent by
the user equipment; [0034] a determining module, configured to
determine a serving mobility management entity of the user
equipment according to a global mobility management entity
identifier in the temporary identifier of the user equipment
received by the receiving module; and [0035] a sending module,
configured to send the service request message received by the
receiving module and the PLMN available indication received by the
receiving module to the serving mobility management entity of the
user equipment determined by the determining module.
[0036] A tenth aspect of the present invention provides a mobility
management entity, including: [0037] a receiving module, configured
to receive a service request message and a public land mobile
network PLMN available indication that are sent by a base station,
where the mobility management entity is a serving mobility
management entity of user equipment, and the service request
message and the PLMN available indication are sent to the mobility
management entity after the base station receives a temporary
identifier and the PLMN available indication that are of the user
equipment and sent by the user equipment, receives the service
request message sent by the user equipment, and determines the
serving mobility management entity of the user equipment according
to a global mobility management entity identifier in the temporary
identifier of the user equipment; and [0038] a sending module,
configured to send a redirection indication, so that the user
equipment registers with a target PLMN of redirection.
[0039] An eleventh aspect of the present invention provides user
equipment, including: [0040] a sending module, configured to: send
a temporary identifier and a public land mobile network PLMN
available indication that are of the user equipment to a base
station; and send a service request message to the base station, so
that after receiving the service request message sent by the user
equipment, the base station determines a serving mobility
management entity of the user equipment according to a global
mobility management entity identifier in the temporary identifier
of the user equipment, and sends the service request message and
the PLMN available indication to the serving mobility management
entity of the user equipment.
[0041] A twelfth aspect of the present invention provides user
equipment, including: [0042] a reading module, configured to read
an operator list broadcast by a cell; and [0043] an accessing
module, configured to: when the operator list read by the reading
module does not include a public land mobile network PLMN with
which the user equipment successfully registers most recently, a
home PLMN of the user equipment, a user controlled PLMN, or an
operator controlled PLMN, randomly select, if the operator list
includes at least two visited PLMNs, one PLMN from the at least two
visited PLMNs for access.
[0044] A thirteenth aspect of the present invention provides user
equipment, including: [0045] a reading module, configured to read
an operator list and an operator barring indication that are
broadcast by a cell, where the operator barring indication is used
to indicate an identifier of a PLMN that is barred for access; and
[0046] an accessing module, configured to: when the operator list
read by the reading module does not include a public land mobile
network PLMN with which the user equipment successfully registers
most recently, a home PLMN of the user equipment, a user controlled
PLMN, or an operator controlled PLMN, select, if the operator list
includes at least two visited PLMNs, one PLMN except the PLMN
indicated by the operator barring indication from the at least two
visited PLMNs for access.
[0047] A fourteenth aspect of the present invention provides user
equipment, including: [0048] a reading module, configured to read
an operator list and a preferred operator indication that are
broadcast by a cell, where the preferred operator indication is
used to indicate an identifier of a public land mobile network PLMN
that is preferably accessed by a roaming subscriber; and [0049] an
accessing module, configured to: when the operator list does not
include a PLMN with which the user equipment successfully registers
most recently, a home PLMN of the user equipment, a user controlled
PLMN, or an operator controlled PLMN, select the PLMN indicated by
the preferred operator indication from the operator list for
access.
[0050] A fifteenth aspect of the present invention provides a base
station, including: [0051] an obtaining module, configured to
obtain an operator list and an operator barring indication, where
the operator barring indication is used to indicate an identifier
of a PLMN that is barred for access; and [0052] a broadcasting
module, configured to broadcast the operator list obtained by the
obtaining module and the operator barring indication obtained by
the obtaining module, so that after the user equipment reads the
operator list and the operator barring indication, and when the
operator list does not include a public land mobile network PLMN
with which the user equipment successfully registers most recently,
a home PLMN of the user equipment, a user controlled PLMN, or an
operator controlled PLMN, the user equipment selects, when the
operator list includes at least two visited PLMNs, one PLMN except
the PLMN indicated by the operator barring indication from the at
least two visited PLMNs for access.
[0053] A sixteenth aspect of the present invention provides a base
station, including: [0054] an obtaining module, configured to
obtain an operator list and a preferred operator indication, where
the preferred operator indication is used to indicate an identifier
of a public land mobile network PLMN that is preferably accessed by
a roaming subscriber; and [0055] a broadcasting module, configured
to broadcast the operator list obtained by the obtaining module and
the preferred operator indication obtained by the obtaining module,
so that after the user equipment reads the operator list and the
preferred operator indication, and when the operator list does not
include a PLMN with which the user equipment successfully registers
most recently, a home PLMN of the user equipment, a user controlled
PLMN, or an operator controlled PLMN, the user equipment selects
the PLMN indicated by the preferred operator indication from the
operator list for access.
[0056] A seventeenth aspect of the present invention provides a
base station, including a transmitter, a receiver, a memory, and a
processor that is separately connected to the transmitter, the
receiver, and the memory, where the memory stores a group of
program code, and the processor is configured to invoke the program
code stored in the memory to execute the method according to the
first aspect of the present invention.
[0057] An eighteenth aspect of the present invention provides a
mobility management entity, including a transmitter, a receiver, a
memory, and a processor that is separately connected to the
transmitter, the receiver, and the memory, where the memory stores
a group of program code, and the processor is configured to invoke
the program code stored in the memory to execute the method
according to the second aspect of the present invention.
[0058] A nineteenth aspect of the present invention provides user
equipment, including a transmitter, a receiver, a memory, and a
processor that is separately connected to the transmitter, the
receiver, and the memory, where the memory stores a group of
program code, and the processor is configured to invoke the program
code stored in the memory to execute the method according to the
third aspect of the present invention.
[0059] A twentieth aspect of the present invention provides user
equipment, including a transmitter, a receiver, a memory, and a
processor that is separately connected to the transmitter, the
receiver, and the memory, where the memory stores a group of
program code, and the processor is configured to invoke the program
code stored in the memory to execute the method according to the
fourth aspect of the present invention.
[0060] A twenty-first aspect of the present invention provides user
equipment, including a transmitter, a receiver, a memory, and a
processor that is separately connected to the transmitter, the
receiver, and the memory, where the memory stores a group of
program code, and the processor is configured to invoke the program
code stored in the memory to execute the method according to the
fifth aspect of the present invention.
[0061] A twenty-second aspect of the present invention provides
user equipment, including a transmitter, a receiver, a memory, and
a processor that is separately connected to the transmitter, the
receiver, and the memory, where the memory stores a group of
program code, and the processor is configured to invoke the program
code stored in the memory to execute the method according to the
sixth aspect of the present invention.
[0062] A twenty-third aspect of the present invention provides a
base station, including a transmitter, a receiver, a memory, and a
processor that is separately connected to the transmitter, the
receiver, and the memory, where the memory stores a group of
program code, and the processor is configured to invoke the program
code stored in the memory to execute the method according to the
seventh aspect of the present invention.
[0063] A twenty-fourth aspect of the present invention provides a
base station, including a transmitter, a receiver, a memory, and a
processor that is separately connected to the transmitter, the
receiver, and the memory, where the memory stores a group of
program code, and the processor is configured to invoke the program
code stored in the memory to execute the method according to the
eighth aspect of the present invention.
[0064] A technical effect of the present invention is as follows:
After a base station receives a temporary identifier and a PLMN
available indication that are of user equipment and sent by the
user equipment, and receives a service request message sent by the
user equipment, the base station determines a serving mobility
management entity of the user equipment according to a global
mobility management entity identifier in the temporary identifier
of the user equipment; then, the base station sends the service
request message and the PLMN available indication to the serving
mobility management entity of the user equipment, so that the
serving mobility management entity of the user equipment sends a
redirection indication, and the user equipment registers with a
home PLMN of the user equipment. Therefore, in a network sharing
scenario, the user equipment can select a home PLMN of the user
equipment as a serving PLMN of the user equipment as early as
possible.
BRIEF DESCRIPTION OF DRAWINGS
[0065] To describe the technical solutions in the embodiments of
the present invention more clearly, the following briefly
introduces the accompanying drawings required for describing the
embodiments. Apparently, the accompanying drawings in the following
description show some embodiments of the present invention, and
persons of ordinary skill in the art may still derive other
drawings from these accompanying drawings without creative
efforts.
[0066] FIG. 1 is a flowchart of an embodiment of an access control
method according to the present invention;
[0067] FIG. 2 is a flowchart of another embodiment of an access
control method according to the present invention;
[0068] FIG. 3 is a flowchart of still another embodiment of an
access control method according to the present invention;
[0069] FIG. 4 is a flowchart of still another embodiment of an
access control method according to the present invention;
[0070] FIG. 5 is a flowchart of still another embodiment of an
access control method according to the present invention;
[0071] FIG. 6 is a flowchart of still another embodiment of an
access control method according to the present invention;
[0072] FIG. 7 is a flowchart of still another embodiment of an
access control method according to the present invention;
[0073] FIG. 8 is a flowchart of still another embodiment of an
access control method according to the present invention;
[0074] FIG. 9 is a flowchart of still another embodiment of an
access control method according to the present invention;
[0075] FIG. 10 is a flowchart of still another embodiment of an
access control method according to the present invention;
[0076] FIG. 11 is a schematic structural diagram of an embodiment
of a base station according to the present invention;
[0077] FIG. 12 is a schematic structural diagram of another
embodiment of a base station according to the present
invention;
[0078] FIG. 13 is a schematic structural diagram of an embodiment
of a mobility management entity according to the present
invention;
[0079] FIG. 14 is a schematic structural diagram of an embodiment
of user equipment according to the present invention;
[0080] FIG. 15 is a schematic structural diagram of another
embodiment of user equipment according to the present
invention;
[0081] FIG. 16 is a schematic structural diagram of still another
embodiment of user equipment according to the present
invention;
[0082] FIG. 17 is a schematic structural diagram of still another
embodiment of user equipment according to the present
invention;
[0083] FIG. 18 is a schematic structural diagram of still another
embodiment of a base station according to the present
invention;
[0084] FIG. 19 is a schematic structural diagram of still another
embodiment of a base station according to the present
invention;
[0085] FIG. 20 is a schematic structural diagram of still another
embodiment of a base station according to the present
invention;
[0086] FIG. 21 is a schematic structural diagram of another
embodiment of a mobility management entity according to the present
invention;
[0087] FIG. 22 is a schematic structural diagram of still another
embodiment of user equipment according to the present
invention;
[0088] FIG. 23 is a schematic structural diagram of still another
embodiment of user equipment according to the present
invention;
[0089] FIG. 24 is a schematic structural diagram of still another
embodiment of user equipment according to the present
invention;
[0090] FIG. 25 is a schematic structural diagram of still another
embodiment of user equipment according to the present
invention;
[0091] FIG. 26 is a schematic structural diagram of still another
embodiment of a base station according to the present invention;
and
[0092] FIG. 27 is a schematic structural diagram of still another
embodiment of a base station according to the present
invention.
DESCRIPTION OF EMBODIMENTS
[0093] To make the objectives, technical solutions, and advantages
of the embodiments of the present invention clearer, the following
clearly describes the technical solutions in the embodiments of the
present invention with reference to the accompanying drawings in
the embodiments of the present invention. Apparently, the described
embodiments are some but not all of the embodiments of the present
invention. All other embodiments obtained by persons of ordinary
skill in the art based on the embodiments of the present invention
without creative efforts shall fall within the protection scope of
the present invention.
[0094] FIG. 1 is a flowchart of an embodiment of an access control
method according to the present invention. As shown in FIG. 1, the
access control method may include:
[0095] Step 101: A base station receives a temporary identifier and
a PLMN available indication that are of a UE and sent by the
UE.
[0096] In this embodiment, the temporary identifier of the UE may
be a short temporary mobile subscriber identity (Short Temporary
Mobile Subscriber Identity, S-TMSI for short).
[0097] Step 102: The base station receives a service request
message sent by the UE, and determines a serving MME of the UE
according to a global mobility management entity identifier (Global
Mobility Management Entity Identifier, GMMEI for short) in the
temporary identifier of the UE.
[0098] Step 103: The base station sends the service request message
and the PLMN available indication to the serving MME of the UE.
[0099] Further, in an implementation manner of this embodiment,
after step 103, the base station may further receive a redirection
message sent by the serving MME of the UE, where the redirection
message carries the service request message, a cause of
redirection, and information about a target mobility management
entity of redirection, and the redirection message is sent to the
base station after the serving MME of the UE receives the PLMN
available indication; then, the base station sends an initial user
equipment message to the target MME of redirection according to the
information about the target MME of redirection, where the initial
user equipment message carries the service request message and a
redirection attempt flag; next, the base station receives a
redirection complete indication sent by the target MME of
redirection.
[0100] The information about the target MME of redirection may be
an identifier of the target MME of redirection or an address of the
target MME of redirection.
[0101] In another implementation manner of this embodiment, after
step 103, the base station may further receive a redirection
message sent by the serving MME of the UE, where the redirection
message carries the service request message, a cause of
redirection, and an identifier of a target PLMN of redirection, and
the redirection message is sent to the base station after the
serving MME of the UE receives the PLMN available indication; then,
the base station may determine, according to the identifier of the
target PLMN of redirection, a target MME of redirection to which
the target PLMN of redirection belongs, and send an initial user
equipment message to the target MME of redirection, where the
initial user equipment message carries the service request message
and a redirection attempt flag; next, the base station receives a
redirection complete indication sent by the target MME of
redirection.
[0102] In the foregoing two implementation manners of this
embodiment, the cause of redirection may be that the UE is
redirected to an HPLMN of the UE, or the UE is redirected to an
EHPLMN of the UE, or a registered PLMN of the UE changes, or an
HPLMN of the UE is available, or an EHPLMN of the UE is
available.
[0103] In the foregoing two implementation manners of this
embodiment, after the base station receives the redirection
complete indication sent by the target MME of redirection, the base
station may further receive an initial context setup message sent
by the target MME of redirection, where the initial context setup
message is sent to the base station after the target MME of
redirection sets up a bearer between a serving gateway (SGW for
short) and a packet data gateway (PGW for short), and updates a
location of the UE in a home subscriber server (HSS for short);
next, the base station sends an initial user equipment context
setup complete message to the target MME of redirection after
setting up a radio bearer between the base station and the UE, so
that the target MME of redirection sends a service response message
to the UE after performing bearer modification, where the service
response message carries the identifier of the target PLMN of
redirection, so that the UE registers with the target PLMN of
redirection.
[0104] In this embodiment, the PLMN available indication is used to
indicate that a home PLMN (HPLMN for short) of the UE is available,
or the PLMN available indication is used to indicate that an
equivalent home PLMN (EHPLMN for short) of the UE is available.
[0105] Optionally, when the PLMN available indication is used to
indicate that the EHPLMN of the UE is available, in step 102,
before the base station receives the service request message sent
by the UE, the base station may further receive an identifier, sent
by the UE, of the EHPLMN selected by the UE; then, after
determining the serving MME of the UE in step 102, the base station
may further send the identifier of the EHPLMN selected by the UE to
the serving MME of the UE. In this way, the serving MME of the UE
may determine the target MME of redirection or the target PLMN of
redirection according to the identifier of the EHPLMN selected by
the UE.
[0106] In the foregoing embodiment, after a base station receives a
temporary identifier and a PLMN available indication that are of a
UE and sent by the UE, and receives a service request message sent
by the UE, the base station determines a serving MME of the UE
according to a GMMEI in the temporary identifier of the UE; then,
the base station sends the service request message and the PLMN
available indication to the serving MME of the UE, so that the
serving MME of the UE sends a redirection indication, and the UE
registers with a home PLMN. Therefore, in a network sharing
scenario, the UE can select a home PLMN of the UE as a serving PLMN
of the UE as early as possible.
[0107] FIG. 2 is a flowchart of another embodiment of an access
control method according to the present invention. As shown in FIG.
2, the access control method may include:
[0108] Step 201: An MME receives a service request message and a
PLMN available indication that are sent by a base station.
[0109] The MME is a serving MME of a UE. The service request
message and the PLMN available indication are sent to the MME after
the base station receives a temporary identifier of the UE and the
PLMN available indication that are sent by the UE, receives the
service request message sent by the UE, and determines the serving
MME of the UE according to a GMMEI in the temporary identifier of
the UE, where the temporary identifier of the UE may be an
S-TMSI.
[0110] Step 202: The MME sends a redirection indication, so that a
UE registers with a target PLMN of redirection.
[0111] In an implementation manner of this embodiment, that the MME
sends a redirection indication may be that: the MME sends a
redirection message to the base station after receiving the PLMN
available indication, where the redirection message carries the
service request message and a cause of redirection. The cause of
redirection may be that the UE is redirected to an HPLMN of the UE,
or the UE is redirected to an EHPLMN of the UE, or a registered
PLMN of the UE changes, or an HPLMN of the UE is available, or an
EHPLMN of the UE is available.
[0112] The redirection message may further carry information about
a target MME of redirection, where the information about the target
MME of redirection may be an identifier of the target MME of
redirection or an address of the target MME of redirection.
[0113] Alternatively, the redirection message may further carry an
identifier of the target PLMN of redirection.
[0114] In another implementation manner of this embodiment, that
the MME sends a redirection indication may be that: the MME sends a
service response message to the UE after receiving the PLMN
available indication, where the service response message carries
the redirection indication, and a cause of redirection may be that
the UE is redirected to an HPLMN of the UE, or the UE is redirected
to an EHPLMN of the UE, or a registered PLMN of the UE changes, or
an HPLMN of the UE is available, or an EHPLMN of the UE is
available.
[0115] In this embodiment, the PLMN available indication is used to
indicate that the HPLMN of the UE is available, or the PLMN
available indication is used to indicate that the EHPLMN of the UE
is available.
[0116] Optionally, when the PLMN available indication is used to
indicate that the EHPLMN of the UE is available, before the MME
sends the redirection indication, the MME may further receive an
identifier, sent by the base station, of the EHPLMN selected by the
UE; then, the MME determines the target MME of redirection or the
target PLMN of redirection according to the identifier of the
EHPLMN selected by the UE.
[0117] Specifically, that the MME determines the target MME of
redirection according to the identifier of the EHPLMN selected by
the UE may be that: the MME determines, according to the identifier
of the EHPLMN selected by the UE, an MME to which the EHPLMN
selected by the UE belongs, and determines that the MME to which
the EHPLMN selected by the UE belongs is the target MME of
redirection; or the MME reselects an EHPLMN for the UE according to
the identifier of the EHPLMN selected by the UE, and determines
that an MME to which the reselected EHPLMN belongs is the target
MME of redirection.
[0118] After determining the target MME of redirection, information
about the target MME of redirection is carried in the redirection
message sent by the MME.
[0119] Likewise, that the MME determines the target PLMN of
redirection according to the identifier of the EHPLMN selected by
the UE may be that: the MME determines, according to the identifier
of the EHPLMN selected by the UE, that the EHPLMN selected by the
UE is the target PLMN of redirection; or the MME reselects an
EHPLMN for the UE according to the identifier of the EHPLMN
selected by the UE, and determines that the reselected EHPLMN is
the target PLMN of redirection.
[0120] After determining the target PLMN of redirection, the
identifier of the target PLMN of redirection is carried in the
redirection message sent by the MME.
[0121] In the foregoing embodiment, after an MME receives a service
request message and a PLMN available indication that are sent by a
base station, the MME sends a redirection indication, so that a UE
registers with a target PLMN of redirection. Therefore, in a
network sharing scenario, the UE can select a home PLMN of the UE
as a serving PLMN of the UE as early as possible.
[0122] FIG. 3 is a flowchart of still another embodiment of an
access control method according to the present invention. As shown
in FIG. 3, the access control method may include:
[0123] Step 301: A UE sends a temporary identifier and a PLMN
available indication that are of the UE to a base station.
[0124] The temporary identifier of the UE may be an S-TMSI of the
UE.
[0125] Step 302: The UE sends a service request message to the base
station, so that after receiving the service request message sent
by the UE, the base station determines a serving MME of the UE
according to a GMMEI in the temporary identifier of the UE, and
sends the service request message and the PLMN available indication
to the serving MME of the UE.
[0126] Further, in step 302, after the UE sends the service request
message to the base station, the UE may further receive a service
response message sent by the serving MME of the UE, where the
service response message carries a redirection indication, and a
cause of redirection may be that the UE is redirected to an HPLMN
of the UE, or the UE is redirected to an EHPLMN of the UE, or a
registered PLMN of the UE changes, or an HPLMN of the UE is
available, or an EHPLMN of the UE is available; and the service
response message is sent to the UE after the serving MME of the UE
receives the PLMN available indication sent by the base
station.
[0127] The PLMN available indication is used to indicate that the
home PLMN of the UE is available, or the PLMN available indication
is used to indicate that an EHPLMN of the UE is available.
[0128] Optionally, when the PLMN available indication is used to
indicate that the EHPLMN of the UE is available, in step 302,
before the UE sends the service request message to the base
station, the UE may further send an identifier of the EHPLMN
selected by the UE to the base station, so that the base station
sends the identifier of the EHPLMN selected by the UE to the
serving MME of the UE, and the serving MME of the UE determines a
target PLMN of redirection according to the EHPLMN selected by the
UE. The target PLMN of redirection may be the EHPLMN of the UE.
[0129] In the foregoing embodiment, a UE sends a temporary
identifier and a PLMN available indication that are of the UE to a
base station, and then sends a service request message to the base
station, so that after receiving the service request message sent
by the UE, the base station determines a serving MME of the UE
according to a GMMEI in the temporary identifier of the UE, and
sends the service request message and the PLMN available indication
to the serving MME of the UE. In this way, after the serving MME of
the UE receives the service request message and the PLMN available
indication that are sent by the base station, the serving MME of
the UE sends a redirection indication, so that the UE registers
with a target PLMN of redirection, where the target PLMN of
redirection may be an EHPLMN of the UE. Therefore, in a network
sharing scenario, the UE can select a home PLMN of the UE as a
serving PLMN of the UE as early as possible.
[0130] FIG. 4 is a flowchart of still another embodiment of an
access control method according to the present invention. As shown
in FIG. 4, the access control method may include:
[0131] Step 401: A UE sends an RRC connection request message to an
eNB, where the RRC connection request message carries a temporary
identifier S-TMSI of the UE.
[0132] Step 402: The eNB sends an RRC connection setup message to
the UE.
[0133] Step 403: The UE sends an RRC connection setup complete
message to the eNB to complete an RRC connection setup procedure,
where the RRC connection setup complete message carries a PLMN
available indication.
[0134] The PLMN available indication is used to indicate that an
HPLMN of the UE is available, or the PLMN available indication is
used to indicate that an EHPLMN of the UE is available.
[0135] Optionally, when the PLMN available indication is used to
indicate that the EHPLMN of the UE is available, the RRC connection
setup complete message further carries an identifier of the EHPLMN
selected by the UE.
[0136] Step 404: The UE sends a service request message to the eNB,
where the service request message is a non-access stratum (NAS for
short) message.
[0137] Step 405: The eNB determines a serving MME of the UE
according to a GMMEI in the S-TMSI of the UE, and sends, to the
serving MME of the UE, the service request message and the PLMN
available indication that are sent by the UE.
[0138] Optionally, if the RRC connection setup complete message
carries the identifier of the EHPLMN selected by the UE, a base
station sends the identifier of the EHPLMN selected by the UE to
the serving MME of the UE.
[0139] Step 406: The serving MME of the UE sends a redirection
message to the eNB.
[0140] The redirection message carries the service request message
and a cause of redirection. The cause of redirection may be that
the UE is redirected to an HPLMN of the UE, or the UE is redirected
to an EHPLMN of the UE, or a registered PLMN of the UE changes, or
an HPLMN of the UE is available, or an EHPLMN of the UE is
available.
[0141] The redirection message may further carry information about
a target MME of redirection, where the information about the target
MME of redirection may be an identifier of the target MME of
redirection or an address of the target MME of redirection.
Alternatively, the redirection message may further carry an
identifier of a target PLMN of redirection.
[0142] Optionally, if the serving MME of the UE receives the
identifier, sent by the base station, of the EHPLMN selected by the
UE, the serving MME of the UE may determine the target MME of
redirection or the target PLMN of redirection according to the
identifier of the EHPLMN selected by the UE.
[0143] Specifically, that the serving MME of the UE determines the
target MME of redirection according to the identifier of the EHPLMN
selected by the UE may be that: the serving MME of the UE
determines, according to the identifier of the EHPLMN selected by
the UE, an MME to which the EHPLMN selected by the UE belongs, and
determines that the MME to which the EHPLMN selected by the UE
belongs is the target MME of redirection; or the serving MME of the
UE reselects an EHPLMN for the UE according to the identifier of
the EHPLMN selected by the UE, and determines that an MME to which
the reselected EHPLMN belongs is the target MME of redirection.
[0144] After determining the target MME of redirection, the
information about the target MME of redirection is carried in the
redirection message sent by the serving MME of the UE.
[0145] Likewise, that the serving MME of the UE determines the
target PLMN of redirection according to the identifier of the
EHPLMN selected by the UE may be that: the serving MME of the UE
determines, according to the identifier of the EHPLMN selected by
the UE, that the EHPLMN selected by the UE is the target PLMN of
redirection; or the serving MME of the UE reselects an EHPLMN for
the UE according to the identifier of the EHPLMN selected by the
UE, and determines that the reselected EHPLMN is the target PLMN of
redirection.
[0146] After determining the target PLMN of redirection, the
identifier of the target PLMN of redirection is carried in the
redirection message sent by the serving MME of the UE.
[0147] Step 407: A base station sends an initial user equipment
message to a target MME of redirection, where the initial user
equipment message carries the service request message and a
redirection attempt flag.
[0148] Specifically, if the redirection message carries the
information about the target MME of redirection, the base station
may send the initial user equipment message to the target MME of
redirection according to the information about the target MME of
redirection.
[0149] Alternatively, if the redirection message carries the
identifier of the target PLMN of redirection, the base station may
determine, according to the identifier of the target PLMN of
redirection, a target MME of redirection to which the target PLMN
of redirection belongs, and sends the initial user equipment
message to the target MME of redirection.
[0150] Step 408: The target MME of redirection sends a context
request to the serving MME of the UE, so as to request context
information of the UE.
[0151] Step 409: The serving MME of the UE sends a context response
to the target MME of redirection.
[0152] Step 410: The target MME of redirection performs an
authorization and authentication procedure on the UE, wherein a
redirection complete flag is carried in a message, such as a
downlink non-access stratum transport (DL NAS Transport) message,
that is sent to the eNB.
[0153] Step 411: The target MME of redirection sets up a bearer
between an SGW and a PGW by using a session setup procedure.
[0154] Step 412: The target MME of redirection updates a location
of the UE in an HSS by using a location update procedure.
[0155] Step 413: The target MME of redirection sends an initial
context setup message to the eNB.
[0156] Step 414: Set up a radio bearer between the eNB and the
UE.
[0157] Step 415: The eNB sends an initial user equipment context
setup complete message to the target MME of redirection.
[0158] Step 416: The target MME of redirection sends a modify
bearer request message to the SGW.
[0159] Step 417: The SGW sends a modify bearer response message to
the target MME of redirection.
[0160] Step 418: The target MME of redirection sends a service
response message to the UE, where the service response message
carries an identifier of a target PLMN of redirection.
[0161] The target PLMN of redirection may be the HPLMN of the UE or
the EHPLMN of the UE.
[0162] Step 419: The UE initiates a tracking area (TA for short)
update procedure, and registers with the target PLMN of
redirection.
[0163] In the foregoing embodiment, in a network sharing scenario,
a UE can select a home PLMN of the UE as a serving PLMN of the UE
as early as possible.
[0164] FIG. 5 is a flowchart of still another embodiment of an
access control method according to the present invention. As shown
in FIG. 5, the access control method may include:
[0165] Step 501: A UE sends an RRC connection request message to an
eNB, where the RRC connection request message carries a temporary
identifier S-TMSI of the UE.
[0166] Step 502: The eNB sends an RRC connection setup message to
the UE.
[0167] Step 503: The UE sends an RRC connection setup complete
message to the eNB to complete an RRC connection setup procedure,
where the RRC connection setup complete message carries a PLMN
available indication.
[0168] The PLMN available indication is used to indicate that an
HPLMN of the UE is available, or the PLMN available indication is
used to indicate that an EHPLMN of the UE is available.
[0169] Optionally, when the PLMN available indication is used to
indicate that the EHPLMN of the UE is available, the RRC connection
setup complete message further carries an identifier of the EHPLMN
selected by the UE.
[0170] Step 504: The UE sends a service request message to the eNB,
where the service request message is a NAS message.
[0171] Step 505: The eNB determines a serving MME of the UE
according to a GMMEI in the S-TMSI of the UE, and sends, to the
serving MME of the UE, the service request message and the PLMN
available indication that are sent by the UE.
[0172] Optionally, if the RRC connection setup complete message
carries the identifier of the EHPLMN selected by the UE, a base
station sends the identifier of the EHPLMN selected by the UE to
the serving MME of the UE.
[0173] Step 506: The serving MME of the UE sends a service response
message to the UE, where the service response message carries a
redirection indication, and a cause of redirection may be that the
UE is redirected to an HPLMN of the UE, or the UE is redirected to
an EHPLMN of the UE, or a registered PLMN of the UE changes, or an
HPLMN of the UE is available, or an EHPLMN of the UE is
available.
[0174] Optionally, if the serving MME of the UE receives the
identifier, sent by the base station, of the EHPLMN selected by the
UE, the serving MME of the UE may determine a target PLMN of
redirection according to the EHPLMN selected by the UE. The target
PLMN of redirection may be the EHPLMN of the UE.
[0175] Step 507: The UE sends a TA update request to a target MME
of redirection.
[0176] Specifically, after receiving the redirection indication
sent by the serving MME of the UE, the UE may determine the target
MME of redirection according to the cause of redirection, and then
send the TA update request to the target MME of redirection.
[0177] Step 508: A normal TA update procedure is performed.
[0178] Step 509: The UE sends a service request message to the
target MME of redirection.
[0179] Step 510: A normal service request procedure is
performed.
[0180] In the foregoing embodiment, in a network sharing scenario,
a UE can select a home PLMN of the UE as a serving PLMN of the UE
as early as possible.
[0181] FIG. 6 is a flowchart of still another embodiment of an
access control method according to the present invention. As shown
in FIG. 6, the access control method may include:
[0182] Step 601: A UE reads an operator list broadcast by a
cell.
[0183] Step 602: If the operator list does not include a PLMN with
which the UE successfully registers most recently, an HPLMN of the
UE, a user controlled PLMN (UPLMN for short), or an operator
controlled PLMN (OPLMN for short), the UE randomly selects, when
the operator list includes at least two visited PLMNs (VPLMN for
short), one PLMN from the at least two VPLMNs for access.
[0184] In the foregoing embodiment, when accessing a shared
network, a roaming subscriber can equally access multiple PLMNs of
multiple operators, preventing a case in which an operator ranking
first in an operator list broadcast by a cell is overloaded due to
access of too many roaming subscribers, or achieves an excessive
income from roaming subscribers.
[0185] FIG. 7 is a flowchart of still another embodiment of an
access control method according to the present invention. As shown
in FIG. 7, the access control method may include:
[0186] Step 701: A UE reads an operator list and an operator
barring indication that are broadcast by a cell, where the operator
barring indication is used to indicate an identifier of a PLMN that
is barred for access.
[0187] Specifically, when a core network node of an operator is
overloaded or a quantity of access subscribers of an operator
reaches an upper limit of a rented share, the operator barring
indication may be set to forbid subsequent access of a roaming
subscriber to this operator.
[0188] Step 702: If the operator list does not include a PLMN with
which the UE successfully registers most recently, an HPLMN of the
UE, a UPLMN of the UE, or an OPLMN of the UE, the UE selects, when
the operator list includes at least two VPLMNs, one PLMN except the
PLMN indicated by the operator barring indication from the at least
two VPLMNs for access.
[0189] In the foregoing embodiment, when a core network node of an
operator is overloaded or a quantity of access subscribers of an
operator reaches an upper limit of a rented share, subsequent
access of a roaming subscriber can be forbidden, to prevent
overload of an operator.
[0190] FIG. 8 is a flowchart of still another embodiment of an
access control method according to the present invention. As shown
in FIG. 8, the access control method may include:
[0191] Step 801: A UE reads an operator list and a preferred
operator indication that are broadcast by a cell, where the
preferred operator indication is used to indicate an identifier of
a PLMN that is preferably accessed by a roaming subscriber.
[0192] Step 802: If the operator list does not include a PLMN with
which the UE successfully registers most recently, an HPLMN of the
UE, a UPLMN of the UE, or an OPLMN of the UE, the UE selects the
PLMN indicated by the preferred operator indication from the
operator list for access.
[0193] In the foregoing embodiment, a roaming subscriber can access
an operator indicated by a preferred operator indication.
[0194] FIG. 9 is a flowchart of still another embodiment of an
access control method according to the present invention. As shown
in FIG. 9, the access control method may include:
[0195] Step 901: A base station obtains an operator list and an
operator barring indication, where the operator barring indication
is used to indicate an identifier of a PLMN that is barred for
access.
[0196] Specifically, when a core network node of an operator is
overloaded or a quantity of access subscribers of an operator
reaches an upper limit of a rented share, the operator barring
indication may be set to forbid subsequent access of a roaming
subscriber to this operator.
[0197] Step 902: The base station broadcasts the operator list and
the operator barring indication, so that after a UE reads the
operator list and the operator barring indication, and when the
operator list does not include a PLMN with which the UE
successfully registers most recently, an HPLMN of the UE, a UPLMN
of the UE, or an OPLMN of the UE, the UE selects, when the operator
list includes at least two VPLMNs, one PLMN except the PLMN
indicated by the operator barring indication from the at least two
VPLMNs for access.
[0198] In the foregoing embodiment, when a core network node of an
operator is overloaded or a quantity of access subscribers of an
operator reaches an upper limit of a rented share, subsequent
access of a roaming subscriber can be forbidden, to prevent
overload of an operator.
[0199] FIG. 10 is a flowchart of still another embodiment of an
access control method according to the present invention. As shown
in FIG. 10, the access control method may include:
[0200] Step 1001: A base station obtains an operator list and a
preferred operator indication, where the preferred operator
indication is used to indicate an identifier of a PLMN that is
preferably accessed by a roaming subscriber.
[0201] Step 1002: The base station broadcasts the operator list and
the preferred operator indication, so that after a UE reads the
operator list and the preferred operator indication that are
broadcast by a cell, and when the operator list does not include a
PLMN with which the UE successfully registers most recently, an
HPLMN of the UE, a UPLMN of the UE, or an OPLMN of the UE, the UE
selects the PLMN indicated by the preferred operator indication
from the operator list for access.
[0202] In the foregoing embodiment, a roaming subscriber can access
an operator indicated by a preferred operator indication.
[0203] Persons of ordinary skill in the art may understand that all
or some of the steps of the method embodiments may be implemented
by a program instructing relevant hardware. The foregoing program
may be stored in a computer-readable storage medium. When the
program runs, the steps of the method embodiments are performed.
The foregoing storage medium includes: any medium that can store
program code, such as a ROM, a RAM, a magnetic disk, or an optical
disc.
[0204] FIG. 11 is a schematic structural diagram of an embodiment
of a base station according to the present invention. The base
station in this embodiment may implement a procedure of the
embodiment shown in FIG. 1 of the present invention. As shown in
FIG. 11, the base station may include: a receiving module 1101, a
determining module 1102, and a sending module 1103.
[0205] The receiving module 1101 is configured to: receive a
temporary identifier and a PLMN available indication that are of a
UE and sent by the UE; and receive a service request message sent
by the UE, where the temporary identifier of the UE may be an
S-TMSI.
[0206] The determining module 1102 is configured to determine a
serving MME of the UE according to a GMMEI in the temporary
identifier of the UE received by the receiving module 1101.
[0207] The sending module 1103 is configured to send the service
request message received by the receiving module 1101 and the PLMN
available indication received by the receiving module 1101 to the
serving MME of the UE determined by the determining module
1102.
[0208] In an implementation manner of this embodiment, the
receiving module 1101 is further configured to: receive, after the
sending module 1103 sends the service request message and the PLMN
available indication, a redirection message sent by the serving MME
of the UE, where the redirection message carries the service
request message, a cause of redirection, and information about a
target MME of redirection, and the redirection message is sent to
the base station after the serving MME of the UE receives the PLMN
available indication; and receive, after the sending module 1103
sends an initial user equipment message, a redirection complete
indication sent by the target MME of redirection, where the
information about the target MME of redirection may be an
identifier of the target MME of redirection or an address of the
target MME of redirection.
[0209] The sending module 1103 is further configured to send the
initial user equipment message to the target MME of redirection
according to the information about the target MME of redirection
received by the receiving module 1101, where the initial user
equipment message carries the service request message and a
redirection attempt flag.
[0210] In another implementation manner of this embodiment, the
receiving module 1101 is further configured to: receive, after the
sending module 1103 sends the service request message and the PLMN
available indication, a redirection message sent by the serving MME
of the UE, where the redirection message carries the service
request message, a cause of redirection, and an identifier of a
target PLMN of redirection, and the redirection message is sent to
the base station after the serving MME of the UE receives the PLMN
available indication; and receive, after the sending module 1103
sends an initial user equipment message, a redirection complete
indication sent by the target MME of redirection.
[0211] The determining module 1102 is further configured to
determine, according to the identifier of the target PLMN of
redirection received by the receiving module 1101, a target MME of
redirection to which the target PLMN of redirection belongs.
[0212] The sending module 1103 is further configured to send the
initial user equipment message to the target MME of redirection
determined by the determining module 1102, where the initial user
equipment message carries the service request message and a
redirection attempt flag.
[0213] In the foregoing two implementation manners of this
embodiment, the cause of redirection may be that the UE is
redirected to an HPLMN of the UE, or the UE is redirected to an
EHPLMN of the UE, or a registered PLMN of the UE changes, or an
HPLMN of the UE is available, or an EHPLMN of the UE is
available.
[0214] In hardware implementation, the sending module 1103 may be a
transmitter or a transceiver, the receiving module 1101 may be a
receiver or a transceiver, and the sending module 1103 and the
receiving module 1101 may be integrated to form a transceiving
unit, which is corresponding to a transceiver in the hardware
implementation. The determining module 1102 may be built in or
independent of a processor of a base station in a hardware form, or
may be stored in a memory of the base station in a software form,
so as to be invoked by the processor to perform an operation
corresponding to each of the foregoing modules. The processor may
be a central processing unit (CPU), a microprocessor, a single-chip
microcomputer, or the like.
[0215] In the foregoing embodiment, after a receiving module 1101
receives a temporary identifier and a PLMN available indication
that are of a UE and sent by the UE, and receives a service request
message sent by the UE, a determining module 1102 determines a
serving MME of the UE according to a GMMEI in the temporary
identifier of the UE; then, a sending module 1103 sends the service
request message and the PLMN available indication to the serving
MME of the UE, so that the serving MME of the UE sends a
redirection indication, and the UE registers with a home PLMN.
Therefore, in a network sharing scenario, the UE can select a home
PLMN of the UE as a serving PLMN of the UE as early as
possible.
[0216] FIG. 12 is a schematic structural diagram of another
embodiment of a base station according to the present invention.
Compared with the base station shown in FIG. 11, a difference lies
in that the base station shown in FIG. 12 may further include a
setup module 1104.
[0217] The receiving module 1101 is further configured to receive,
after receiving the redirection complete indication, an initial
context setup message sent by the target MME of redirection, where
the initial context setup message is sent to the base station after
the target MME of redirection sets up a bearer between an SGW and a
PGW, and updates a location of the UE in an HSS.
[0218] The setup module 1104 is configured to set up a radio bearer
between the base station and the UE.
[0219] The sending module 1103 is further configured to send an
initial user equipment context setup complete message to the target
MME of redirection after the setup module 1104 sets up the radio
bearer between the base station and the UE, so that the target MME
of redirection sends a service response message to the UE after
performing bearer modification, where the service response message
carries the identifier of the target PLMN of redirection, so that
the UE registers with the target PLMN of redirection.
[0220] In this embodiment, the PLMN available indication received
by the receiving module 1101 is used to indicate that an HPLMN of
the UE is available, or the PLMN available indication received by
the receiving module 1101 is used to indicate that an EHPLMN of the
UE is available.
[0221] Optionally, the receiving module 1101 is further configured
to: when the PLMN available indication received by the receiving
module 1101 is used to indicate that the EHPLMN of the UE is
available, receive, before receiving the service request message
sent by the UE, an identifier, sent by the UE, of the EHPLMN
selected by the UE.
[0222] The sending module 1103 is further configured to send, after
the determining module 1102 determines the serving MME of the UE,
the identifier of the EHPLMN selected by the UE to the serving MME
of the UE.
[0223] In hardware implementation, the sending module 1103 may be a
transmitter or a transceiver, the receiving module 1101 may be a
receiver or a transceiver, and the sending module 1103 and the
receiving module 1101 may be integrated to form a transceiving
unit, which is corresponding to a transceiver in the hardware
implementation. The determining module 1102 and the setup module
1104 may be built in or independent of a processor of a base
station in a hardware form, or may be stored in a memory of the
base station in a software form, so as to be invoked by the
processor to perform an operation corresponding to each of the
foregoing modules. The processor may be a central processing unit
(CPU), a microprocessor, a single-chip microcomputer, or the
like.
[0224] In the foregoing embodiment, in a network sharing scenario,
a UE can select a home PLMN of the UE as a serving PLMN of the UE
as early as possible.
[0225] FIG. 13 is a schematic structural diagram of an embodiment
of a mobility management entity according to the present invention.
The MME in this embodiment may implement a procedure of the
embodiment shown in FIG. 2 of the present invention. As shown in
FIG. 13, the MME may include a receiving module 1301 and a sending
module 1302.
[0226] The receiving module 1301 is configured to receive a service
request message and a PLMN available indication that are sent by a
base station, where the MME is a serving MME of a UE, and the
service request message and the PLMN available indication are sent
to the MME after the base station receives a temporary identifier
of the UE and the PLMN available indication that are sent by the
UE, receives the service request message sent by the UE, and
determines the serving MME of the UE according to a GMMEI in the
temporary identifier of the UE.
[0227] The sending module 1302 is configured to send a redirection
indication, so that the UE registers with a target PLMN of
redirection.
[0228] In an implementation manner of this embodiment, the sending
module 1302 is specifically configured to send a redirection
message to the base station after the receiving module 1301
receives the PLMN available indication, where the redirection
message carries the service request message and a cause of
redirection, and the cause of redirection includes that the UE is
redirected to an HPLMN of the UE, or the UE is redirected to an
EHPLMN of the UE, or a registered PLMN of the UE changes, or an
HPLMN of the UE is available, or an EHPLMN of the UE is
available.
[0229] Further, the redirection message sent by the sending module
1302 further carries information about a target MME of redirection,
where the information about the target MME of redirection may be an
identifier of the target MME of redirection or an address of the
target MME of redirection.
[0230] Alternatively, the redirection message sent by the sending
module 1302 further carries an identifier of the target PLMN of
redirection.
[0231] In another implementation manner of this embodiment, the
sending module 1302 is specifically configured to send a service
response message to the UE after receiving the PLMN available
indication, where the service response message carries the
redirection indication, and a cause of redirection may be that the
UE is redirected to an HPLMN of the UE, or the UE is redirected to
an EHPLMN of the UE, or a registered PLMN of the UE changes, or an
HPLMN of the UE is available, or an EHPLMN of the UE is
available.
[0232] In this embodiment, the PLMN available indication received
by the receiving module 1301 is used to indicate that the HPLMN of
the UE is available, or the PLMN available indication received by
the receiving module 1301 is used to indicate that the EHPLMN of
the UE is available.
[0233] Further, in still another implementation manner of this
embodiment, the MME may further include a determining module
1303.
[0234] The receiving module 1301 is further configured to: when the
PLMN available indication received by the receiving module 1301 is
used to indicate that the EHPLMN of the UE is available, receive,
before the sending module 1302 sends the redirection indication, an
identifier, sent by the base station, of the EHPLMN selected by the
UE.
[0235] The determining module 1303 is configured to determine the
target MME of redirection or the target PLMN of redirection
according to the identifier, received by the receiving module 1301,
of the EHPLMN selected by the UE.
[0236] Specifically, that the determining module 1303 determines
the target MME of redirection according to the identifier of the
EHPLMN selected by the UE may be that: the determining module 1303
determines, according to the identifier of the EHPLMN selected by
the UE, an MME to which the EHPLMN selected by the UE belongs, and
determines that the MME to which the EHPLMN selected by the UE
belongs is the target MME of redirection; or the determining module
1303 reselects an EHPLMN for the UE according to the identifier of
the EHPLMN selected by the UE, and determines that an MME to which
the reselected EHPLMN belongs is the target MME of redirection.
[0237] After the determining module 1303 determines the target MME
of redirection, the information about the target MME of redirection
is carried in the redirection message sent by the sending module
1302.
[0238] Likewise, that the determining module 1303 determines the
target PLMN of redirection according to the identifier of the
EHPLMN selected by the UE may be that: the determining module 1303
determines, according to the identifier of the EHPLMN selected by
the UE, that the EHPLMN selected by the UE is the target PLMN of
redirection; or the determining module 1303 reselects an EHPLMN for
the UE according to the identifier of the EHPLMN selected by the
UE, and determines that the reselected EHPLMN is the target PLMN of
redirection.
[0239] After the determining module 1303 determines the target PLMN
of redirection, the identifier of the target PLMN of redirection is
carried in the redirection message sent by the sending module
1302.
[0240] In hardware implementation, the sending module 1302 may be a
transmitter or a transceiver, the receiving module 1301 may be a
receiver or a transceiver, and the sending module 1302 and the
receiving module 1301 may be integrated to form a transceiving
unit, which is corresponding to a transceiver in the hardware
implementation. The determining module 1303 may be built in or
independent of a processor of a base station in a hardware form, or
may be stored in a memory of the base station in a software form,
so as to be invoked by the processor to perform an operation
corresponding to each of the foregoing modules. The processor may
be a central processing unit (CPU), a microprocessor, a single-chip
microcomputer, or the like.
[0241] In the foregoing embodiment, after a receiving module 1301
receives a service request message and a PLMN available indication
that are sent by a base station, a sending module 1302 sends a
redirection indication, so that a UE registers with a target PLMN
of redirection. Therefore, in a network sharing scenario, the UE
can select a home PLMN of the UE as a serving PLMN of the UE as
early as possible.
[0242] FIG. 14 is a schematic structural diagram of an embodiment
of user equipment according to the present invention. The UE in
this embodiment may implement a procedure of the embodiment shown
in FIG. 3 of the present invention. As shown in FIG. 14, the UE may
include a sending module 1401.
[0243] The sending module 1401 is configured to: send a temporary
identifier and a PLMN available indication that are of the UE to a
base station; and send a service request message to the base
station, so that after receiving the service request message sent
by the UE, the base station determines a serving MME of the UE
according to a GMMEI in the temporary identifier of the UE, and
sends the service request message and the PLMN available indication
to the serving MME of the UE. The temporary identifier of the UE
may be an S-TMSI of the UE.
[0244] Further, in an implementation manner of this embodiment, the
UE may further include a receiving module 1402.
[0245] The receiving module 1402 is configured to receive, after
the sending module 1401 sends the service request message to the
base station, a service response message sent by the serving MME of
the UE, where the service response message carries a redirection
indication, and a cause of redirection may be that the UE is
redirected to an HPLMN of the UE, or the UE is redirected to an
EHPLMN of the UE, or a registered PLMN of the UE changes, or an
HPLMN of the UE is available, or an EHPLMN of the UE is available;
and the service response message is sent to the UE after the
serving MME of the UE receives the PLMN available indication sent
by the base station.
[0246] The PLMN available indication sent by the sending module
1401 is used to indicate that the HPLMN of the UE is available, or
the PLMN available indication sent by the sending module 1401 is
used to indicate that the EHPLMN of the UE is available.
[0247] The sending module 1401 is further configured to: when the
PLMN available indication sent by the sending module 1401 is used
to indicate that the EHPLMN of the UE is available, send, before
sending the service request message to the base station, an
identifier of the EHPLMN selected by the UE to the base station, so
that the base station sends the identifier of the EHPLMN selected
by the UE to the serving MME of the UE, and the serving MME of the
UE determines a target PLMN of redirection according to the EHPLMN
selected by the UE.
[0248] In hardware implementation, the sending module 1401 may be a
transmitter or a transceiver, the receiving module 1402 may be a
receiver or a transceiver, and the sending module 1401 and the
receiving module 1402 may be integrated to form a transceiving
unit, which is corresponding to a transceiver in the hardware
implementation.
[0249] In the foregoing embodiment, a sending module 1401 sends a
temporary identifier and a PLMN available indication that are of a
UE to a base station, and then sends a service request message to
the base station, so that after receiving the service request
message sent by the UE, the base station determines a serving MME
of the UE according to a GMMEI in the temporary identifier of the
UE, and sends the service request message and the PLMN available
indication to the serving MME of the UE. In this way, after the
serving MME of the UE receives the service request message and the
PLMN available indication that are sent by the base station, the
serving MME of the UE sends a redirection indication, so that the
UE registers with a target PLMN of redirection, where the target
PLMN of redirection may be an EHPLMN of the UE. Therefore, in a
network sharing scenario, the UE can select a home PLMN of the UE
as a serving PLMN of the UE as early as possible.
[0250] FIG. 15 is a schematic structural diagram of another
embodiment of user equipment according to the present invention.
The UE in this embodiment may implement a procedure of the
embodiment shown in FIG. 6 of the present invention. As shown in
FIG. 15, the UE may include a reading module 1501 and an accessing
module 1502.
[0251] The reading module 1501 is configured to read an operator
list broadcast by a cell.
[0252] The accessing module 1502 is configured to: when the
operator list read by the reading module 1501 does not include a
PLMN with which the UE successfully registers most recently, an
HPLMN of the UE, a UPLMN of the UE, or an OPLMN of the UE, randomly
select, if the operator list includes at least two VPLMNs, one PLMN
from the at least two VPLMNs for access.
[0253] In hardware implementation, the reading module 1501 and the
accessing module 1502 may be built in or independent of a processor
of a base station in a hardware form, or may be stored in a memory
of the base station in a software form, so as to be invoked by the
processor to perform an operation corresponding to each of the
foregoing modules. The processor may be a central processing unit
(CPU), a microprocessor, a single-chip microcomputer, or the
like.
[0254] In the foregoing embodiment, when accessing a shared
network, a roaming subscriber can equally access multiple
operators, preventing a case in which an operator ranking first in
an operator list broadcast by a cell is overloaded due to access of
too many roaming subscribers, or achieves an excessive income from
roaming subscribers.
[0255] FIG. 16 is a schematic structural diagram of still another
embodiment of user equipment according to the present invention.
The UE in this embodiment may implement a procedure of the
embodiment shown in FIG. 7 of the present invention. As shown in
FIG. 16, the UE may include a reading module 1601 and an accessing
module 1602.
[0256] The reading module 1601 is configured to read an operator
list and an operator barring indication that are broadcast by a
cell, where the operator barring indication is used to indicate an
identifier of a PLMN that is barred for access.
[0257] The accessing module 1602 is configured to: when the
operator list read by the reading module 1601 does not include a
PLMN with which the UE successfully registers most recently, an
HPLMN of the UE, a UPLMN of the UE, or an OPLMN of the UE, select,
if the operator list includes at least two VPLMNs, one PLMN except
the PLMN indicated by the operator barring indication from the at
least two VPLMNs for access.
[0258] In hardware implementation, the reading module 1601 and the
accessing module 1602 may be built in or independent of a processor
of a base station in a hardware form, or may be stored in a memory
of the base station in a software form, so as to be invoked by the
processor to perform an operation corresponding to each of the
foregoing modules. The processor may be a central processing unit
(CPU), a microprocessor, a single-chip microcomputer, or the
like.
[0259] In the foregoing embodiment, when a core network node of an
operator is overloaded or a quantity of access subscribers of an
operator reaches an upper limit of a rented share, subsequent
access of a roaming subscriber can be forbidden, to prevent
overload of an operator.
[0260] FIG. 17 is a schematic structural diagram of still another
embodiment of user equipment according to the present invention.
The UE in this embodiment may implement a procedure of the
embodiment shown in FIG. 8 of the present invention. As shown in
FIG. 17, the UE may include a reading module 1701 and an accessing
module 1702.
[0261] The reading module 1701 is configured to read an operator
list and a preferred operator indication that are broadcast by a
cell, where the preferred operator indication is used to indicate
an identifier of a PLMN that is preferably accessed by a roaming
subscriber.
[0262] The accessing module 1702 is configured to: when the
operator list does not include a PLMN with which the UE
successfully registers most recently, a home PLMN of the UE, a
UPLMN, or an OPLMN, select the PLMN indicated by the preferred
operator indication from the operator list for access.
[0263] In hardware implementation, the reading module 1701 and the
accessing module 1702 may be built in or independent of a processor
of a base station in a hardware form, or may be stored in a memory
of the base station in a software form, so as to be invoked by the
processor to perform an operation corresponding to each of the
foregoing modules. The processor may be a central processing unit
(CPU), a microprocessor, a single-chip microcomputer, or the
like.
[0264] In the foregoing embodiment, a roaming subscriber can access
an operator indicated by a preferred operator indication.
[0265] FIG. 18 is a schematic structural diagram of still another
embodiment of a base station according to the present invention.
The base station in this embodiment may implement a procedure of
the embodiment shown in FIG. 9 of the present invention. As shown
in FIG. 18, the base station may include an obtaining module 1801
and a broadcasting module 1802.
[0266] The obtaining module 1801 is configured to obtain an
operator list and an operator barring indication, where the
operator barring indication is used to indicate an identifier of a
PLMN that is barred for access.
[0267] The broadcasting module 1802 is configured to broadcast the
operator list obtained by the obtaining module 1801 and the
operator barring indication obtained by the obtaining module 1801,
so that after a UE reads the operator list and the operator barring
indication, and when the operator list does not include a PLMN with
which the UE successfully registers most recently, an HPLMN of the
UE, a UPLMN of the UE, or an OPLMN of the UE, the UE selects, when
the operator list includes at least two VPLMNs, one PLMN except the
PLMN indicated by the operator barring indication from the at least
two VPLMNs for access.
[0268] In hardware implementation, the broadcasting module 1802 may
be a transmitter or a transceiver, and the obtaining module 1801
may be built in or independent of a processor of a base station in
a hardware form, or may be stored in a memory of the base station
in a software form, so as to be invoked by the processor to perform
an operation corresponding to each of the foregoing modules. The
processor may be a central processing unit (CPU), a microprocessor,
a single-chip microcomputer, or the like.
[0269] In the foregoing embodiment, when a core network node of an
operator is overloaded or a quantity of access subscribers of an
operator reaches an upper limit of a rented share, subsequent
access of a roaming subscriber can be forbidden, to prevent
overload of an operator.
[0270] FIG. 19 is a schematic structural diagram of still another
embodiment of a base station according to the present invention.
The base station in this embodiment may implement a procedure of
the embodiment shown in FIG. 10 of the present invention. As shown
in FIG. 19, the base station may include an obtaining module 1901
and a broadcasting module 1902.
[0271] The obtaining module 1901 is configured to obtain an
operator list and a preferred operator indication, where the
preferred operator indication is used to indicate an identifier of
a PLMN that is preferably accessed by a roaming subscriber.
[0272] The broadcasting module 1902 is configured to broadcast the
operator list obtained by the obtaining module 1901 and the
preferred operator indication obtained by the obtaining module
1901, so that after a UE reads the operator list and the preferred
operator indication that are broadcast by a cell, and when the
operator list does not include a PLMN with which the UE
successfully registers most recently, an HPLMN of the UE, a UPLMN
of the UE, or an OPLMN of the UE, the UE selects the PLMN indicated
by the preferred operator indication from the operator list for
access.
[0273] In hardware implementation, the broadcasting module 1902 may
be a transmitter or a transceiver, and the obtaining module 1901
may be built in or independent of a processor of a base station in
a hardware form, or may be stored in a memory of the base station
in a software form, so as to be invoked by the processor to perform
an operation corresponding to each of the foregoing modules. The
processor may be a central processing unit (CPU), a microprocessor,
a single-chip microcomputer, or the like.
[0274] In the foregoing embodiment, a roaming subscriber can access
an operator indicated by a preferred operator indication.
[0275] FIG. 20 is a schematic structural diagram of still another
embodiment of a base station according to the present invention. As
shown in FIG. 20, the base station may include a transmitter 2001,
a receiver 2002, a memory 2003, and a processor 2004 that is
separately connected to the transmitter 2001, the receiver 2002,
and the memory 2003. Certainly, the base station may further
include general components, such as an antenna, a baseband
processing component, an intermediate/radio frequency processing
component, and an input/output apparatus. This embodiment of the
present invention sets no limitation thereto.
[0276] The memory 2003 stores a group of program code, and the
processor 2004 is configured to invoke the program code stored in
the memory 2003, so as to execute the following operations:
[0277] receiving a temporary identifier and a PLMN available
indication that are of a UE and sent by the UE;
[0278] receiving a service request message sent by the UE, and
determining a serving MME of the UE according to a GMMEI in the
temporary identifier of the UE; and
[0279] sending the service request message and the PLMN available
indication to the serving MME of the UE.
[0280] It should be noted that, the base station shown in FIG. 20
may be configured to implement the method provided in the
embodiment shown in FIG. 1, and descriptions of the temporary
identifier of the UE, a redirection message that is sent by the
serving MME of the UE and received by the base station, and the
like are the same as those in the embodiment shown in FIG. 1 of the
present invention, and details are not described herein again.
[0281] In the foregoing embodiment, in a network sharing scenario,
a UE can select a home PLMN of the UE as a serving PLMN of the UE
as early as possible.
[0282] FIG. 21 is a schematic structural diagram of another
embodiment of a mobility management entity according to the present
invention. As shown in FIG. 21, the MME may include a transmitter
2101, a receiver 2102, a memory 2103, and a processor 2104 that is
separately connected to the transmitter 2101, the receiver 2102,
and the memory 2103. Certainly, the MME may further include general
components, such as an input/output apparatus. This embodiment of
the present invention sets no limitation thereto.
[0283] The memory 2103 stores a group of program code, and the
processor 2104 is configured to invoke the program code stored in
the memory 2103, so as to execute the following operations:
[0284] receiving a service request message and a PLMN available
indication that are sent by a base station; and
[0285] sending a redirection indication, so that a UE registers
with a target PLMN of redirection.
[0286] It should be noted that, the MME shown in FIG. 21 may be
configured to implement the method provided in the embodiment shown
in FIG. 2 of the present invention, and descriptions of the
redirection indication sent by the MME and the like are the same as
those in the embodiment shown in FIG. 2 of the present invention,
and details are not described herein again.
[0287] In the foregoing embodiment, in a network sharing scenario,
a UE can select a home PLMN of the UE as a serving PLMN of the UE
as early as possible.
[0288] FIG. 22 is a schematic structural diagram of still another
embodiment of user equipment according to the present invention. As
shown in FIG. 22, the UE may include a transmitter 2201, a receiver
2202, a memory 2203, and a processor 2204 that is separately
connected to the transmitter 2201, the receiver 2202, and the
memory 2203. Certainly, the UE may further include general
components, such as an antenna, a baseband processing component, an
intermediate/radio frequency processing component, and an
input/output apparatus. This embodiment of the present invention
sets no limitation thereto.
[0289] The memory 2203 stores a group of program code, and the
processor 2204 is configured to invoke the program code stored in
the memory 2203, so as to execute the following operations:
[0290] sending a temporary identifier and a PLMN available
indication that are of the UE to a base station; and
[0291] sending a service request message to the base station, so
that after receiving the service request message sent by the UE,
the base station determines a serving MME of the UE according to a
GMMEI in the temporary identifier of the UE, and sends the service
request message and the PLMN available indication to the serving
MME of the UE.
[0292] It should be noted that, the UE shown in FIG. 22 may be
configured to implement the method provided in the embodiment shown
in FIG. 3 of the present invention, and descriptions of the
temporary identifier of the UE, the PLMN available indication, and
the like are the same as those in the embodiment shown in FIG. 3 of
the present invention, and details are not described herein
again.
[0293] In the foregoing embodiment, in a network sharing scenario,
a UE can select a home PLMN of the UE as a serving PLMN of the UE
as early as possible.
[0294] FIG. 23 is a schematic structural diagram of still another
embodiment of user equipment according to the present invention. As
shown in FIG. 23, the UE may include a transmitter 2301, a receiver
2302, a memory 2303, and a processor 2304 that is separately
connected to the transmitter 2301, the receiver 2302, and the
memory 2303. Certainly, the UE may further include general
components, such as an antenna, a baseband processing component, an
intermediate/radio frequency processing component, and an
input/output apparatus. This embodiment of the present invention
sets no limitation thereto.
[0295] The memory 2303 stores a group of program code, and the
processor 2304 is configured to invoke the program code stored in
the memory 2303, so as to execute the following operations:
[0296] reading an operator list broadcast by a cell; and
[0297] if the operator list does not include a PLMN with which the
UE successfully registers most recently, an HPLMN of the UE, a
UPLMN of the UE, or an OPLMN of the UE, randomly selecting, when
the operator list includes at least two VPLMNs, one PLMN from the
at least two VPLMNs for access.
[0298] It should be noted that the UE shown in FIG. 23 may be
configured to implement the method provided in the embodiment shown
in FIG. 6 of the present invention.
[0299] In the foregoing embodiment, when accessing a shared
network, a roaming subscriber can equally access multiple
operators, preventing a case in which an operator ranking first in
an operator list broadcast by a cell is overloaded due to access of
too many roaming subscribers, or achieves an excessive income from
roaming subscribers.
[0300] FIG. 24 is a schematic structural diagram of still another
embodiment of user equipment according to the present invention. As
shown in FIG. 24, the UE may include a transmitter 2401, a receiver
2402, a memory 2403, and a processor 2404 that is separately
connected to the transmitter 2401, the receiver 2402, and the
memory 2403. Certainly, the UE may further include general
components, such as an antenna, a baseband processing component, an
intermediate/radio frequency processing component, and an
input/output apparatus. This embodiment of the present invention
sets no limitation thereto.
[0301] The memory 2403 stores a group of program code, and the
processor 2404 is configured to invoke the program code stored in
the memory 2403, so as to execute the following operations:
[0302] reading an operator list and an operator barring indication
that are broadcast by a cell, where the operator barring indication
is used to indicate an identifier of a PLMN that is barred for
access; and
[0303] if the operator list does not include a PLMN with which the
UE successfully registers most recently, an HPLMN of the UE, a
UPLMN of the UE, or an OPLMN of the UE, selecting, when the
operator list includes at least two VPLMNs, one PLMN except the
PLMN indicated by the operator barring indication from the at least
two VPLMNs for access.
[0304] It should be noted that the UE shown in FIG. 24 may be
configured to implement the method provided in the embodiment shown
in FIG. 7 of the present invention.
[0305] In the foregoing embodiment, when a core network node of an
operator is overloaded or a quantity of access subscribers of an
operator reaches an upper limit of a rented share, subsequent
access of a roaming subscriber can be forbidden, to prevent
overload of an operator.
[0306] FIG. 25 is a schematic structural diagram of still another
embodiment of user equipment according to the present invention. As
shown in FIG. 25, the UE may include a transmitter 2501, a receiver
2502, a memory 2503, and a processor 2504 that is separately
connected to the transmitter 2501, the receiver 2502, and the
memory 2503. Certainly, the UE may further include general
components, such as an antenna, a baseband processing component, an
intermediate/radio frequency processing component, and an
input/output apparatus. This embodiment of the present invention
sets no limitation thereto.
[0307] The memory 2503 stores a group of program code, and the
processor 2504 is configured to invoke the program code stored in
the memory 2503, so as to execute the following operations:
[0308] reading an operator list and a preferred operator indication
that are broadcast by a cell, where the preferred operator
indication is used to indicate an identifier of a PLMN that is
preferably accessed by a roaming subscriber; and
[0309] if the operator list does not include a PLMN with which the
UE successfully registers most recently, an HPLMN of the UE, a
UPLMN of the UE, or an OPLMN of the UE, selecting the PLMN
indicated by the preferred operator indication from the operator
list for access.
[0310] It should be noted that the UE shown in FIG. 25 may be
configured to implement the method provided in the embodiment shown
in FIG. 8 of the present invention.
[0311] In the foregoing embodiment, a roaming subscriber can access
an operator indicated by a preferred operator indication.
[0312] FIG. 26 is a schematic structural diagram of still another
embodiment of a base station according to the present invention. As
shown in FIG. 26, the base station may include a transmitter 2601,
a receiver 2602, a memory 2603, and a processor 2604 that is
separately connected to the transmitter 2601, the receiver 2602,
and the memory 2603. Certainly, the base station may further
include general components, such as an antenna, a baseband
processing component, an intermediate/radio frequency processing
component, and an input/output apparatus. This embodiment of the
present invention sets no limitation thereto.
[0313] The memory 2603 stores a group of program code, and the
processor 2604 is configured to invoke the program code stored in
the memory 2603, so as to execute the following operations:
[0314] obtaining an operator list and an operator barring
indication, where the operator barring indication is used to
indicate an identifier of a PLMN that is barred for access; and
[0315] broadcasting the operator list and the operator barring
indication, so that after a UE reads the operator list and the
operator barring indication, and when the operator list does not
include a PLMN with which the UE successfully registers most
recently, an HPLMN of the UE, a UPLMN of the UE, or an OPLMN of the
UE, the UE selects, when the operator list includes at least two
VPLMNs, one PLMN except the PLMN indicated by the operator barring
indication from the at least two VPLMNs for access.
[0316] It should be noted that the UE shown in FIG. 26 may be
configured to implement the method provided in the embodiment shown
in FIG. 9 of the present invention.
[0317] In the foregoing embodiment, when a core network node of an
operator is overloaded or a quantity of access subscribers of an
operator reaches an upper limit of a rented share, subsequent
access of a roaming subscriber can be forbidden, to prevent
overload of an operator.
[0318] FIG. 27 is a schematic structural diagram of still another
embodiment of a base station according to the present invention. As
shown in FIG. 27, the base station may include a transmitter 2701,
a receiver 2702, a memory 2703, and a processor 2704 that is
separately connected to the transmitter 2701, the receiver 2702,
and the memory 2703. Certainly, the base station may further
include general components, such as an antenna, a baseband
processing component, an intermediate/radio frequency processing
component, and an input/output apparatus. This embodiment of the
present invention sets no limitation thereto.
[0319] The memory 2703 stores a group of program code, and the
processor 2704 is configured to invoke the program code stored in
the memory 2703, so as to execute the following operations: [0320]
obtaining an operator list and a preferred operator indication,
where the preferred operator indication is used to indicate an
identifier of a PLMN that is preferably accessed by a roaming
subscriber; and
[0321] broadcasting the operator list and the preferred operator
indication, so that after a UE reads the operator list and the
preferred operator indication that are broadcast by a cell, and
when the operator list does not include a PLMN with which the UE
successfully registers most recently, an HPLMN of the UE, a UPLMN
of the UE, or an OPLMN of the UE, the UE selects the PLMN indicated
by the preferred operator indication from the operator list for
access.
[0322] It should be noted that the UE shown in FIG. 27 may be
configured to implement the method provided in the embodiment shown
in FIG. 10 of the present invention.
[0323] In the foregoing embodiment, a roaming subscriber can access
an operator indicated by a preferred operator indication.
[0324] Persons skilled in the art may understand that the
accompanying drawings are merely schematic diagrams of exemplary
embodiments, and modules or processes in the accompanying drawings
are not necessarily required for implementing the present
invention.
[0325] Persons skilled in the art may understand that the modules
in the apparatuses provided in the embodiments may be arranged in
the apparatuses in a distributed manner according to the
description of the embodiments, or may be arranged in one or more
apparatuses which are different from those described in the
embodiments. The modules in the foregoing embodiments may be
combined into one module, or split into a plurality of
submodules.
[0326] Finally, it should be noted that the foregoing embodiments
are merely intended for describing the technical solutions of the
present invention, but not for limiting the present invention.
Although the present invention is described in detail with
reference to the foregoing embodiments, persons of ordinary skill
in the art should understand that they may still make modifications
to the technical solutions described in the foregoing embodiments
or make equivalent replacements to some technical features thereof,
without departing from the scope of the technical solutions of the
embodiments of the present invention.
* * * * *