U.S. patent application number 13/805678 was filed with the patent office on 2013-05-16 for mobile communication method.
This patent application is currently assigned to NTT DOCOMO, INC.. The applicant listed for this patent is Wuri Andarmawanti Hapsari, Mikio Iwamura, Hideaki Takahashi, Anil Umesh. Invention is credited to Wuri Andarmawanti Hapsari, Mikio Iwamura, Hideaki Takahashi, Anil Umesh.
Application Number | 20130122909 13/805678 |
Document ID | / |
Family ID | 45371442 |
Filed Date | 2013-05-16 |
United States Patent
Application |
20130122909 |
Kind Code |
A1 |
Takahashi; Hideaki ; et
al. |
May 16, 2013 |
MOBILE COMMUNICATION METHOD
Abstract
A mobile communication method according to the present invention
includes a step of transmitting, by a mobile management node MME,
"Measurement Configuration #1" for instructing to measure and
report a desired radio quality to a radio base station eNB#1 that
manages a cell #1 when it is detected that a mobile station UE has
moved into the cell #1 in a measurement-target area, and a step of
transmitting, by the radio base station eNB#1, "RRC Connection
Reconfiguration" including the "Measurement Configuration #1" to
the mobile station UE.
Inventors: |
Takahashi; Hideaki; (Tokyo,
JP) ; Hapsari; Wuri Andarmawanti; (Tokyo, JP)
; Umesh; Anil; (Chiyoda-ku, JP) ; Iwamura;
Mikio; (Chiyoda-ku, JP) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Takahashi; Hideaki
Hapsari; Wuri Andarmawanti
Umesh; Anil
Iwamura; Mikio |
Tokyo
Tokyo
Chiyoda-ku
Chiyoda-ku |
|
JP
JP
JP
JP |
|
|
Assignee: |
NTT DOCOMO, INC.
Tokyo
JP
|
Family ID: |
45371442 |
Appl. No.: |
13/805678 |
Filed: |
June 21, 2011 |
PCT Filed: |
June 21, 2011 |
PCT NO: |
PCT/JP2011/064175 |
371 Date: |
January 25, 2013 |
Current U.S.
Class: |
455/436 ;
455/422.1 |
Current CPC
Class: |
H04W 24/10 20130101;
H04W 24/00 20130101 |
Class at
Publication: |
455/436 ;
455/422.1 |
International
Class: |
H04W 24/00 20060101
H04W024/00 |
Foreign Application Data
Date |
Code |
Application Number |
Jun 21, 2010 |
JP |
2010-141111 |
Claims
1. A mobile communication method, comprising: a step of
transmitting, by a mobile management node, first instruction
information for instructing to measure and report a desired radio
quality to a first radio base station that manages a first cell
when it is detected that a mobile station has moved into the first
cell in a measurement-target area; and a step of transmitting, by
the first radio base station, the first instruction information to
the mobile station.
2. The mobile communication method according to claim 1,
comprising: a step of transmitting, by the mobile. management node,
second instruction information for instructing to stop measuring
and reporting the desired radio quality to a second radio base
station that manages a second cell that lies outside the
measurement-target area when it is detected that the mobile station
has moved into the second cell; and a step of transmitting, by the
second radio base station, the second instruction information to
the mobile station.
3. The mobile communication method according to claim 1,
comprising: a step of transmitting, by the mobile management node,
information for specifying the measurement-target area to the first
radio base station; a step of transmitting, by the first radio base
station, the information for specifying the measurement-target area
to the second radio base station that manages the second cell that
lies outside the measurement-target area; and a step of
transmitting, by the second radio base station, second instruction
information for instructing to stop measuring and reporting the
desired radio quality to the mobile station when it is detected
that the mobile station has moved into the second cell on the basis
of the information for specifying the measurement-target area.
4. The mobile communication method according to claim 3, wherein
the first radio base station transmits the information for
specifying the measurement-target area to the second radio base
station through a handover request signal.
5. The mobile communication method according to claim 1, wherein
the mobile management node detects that the mobile station has
moved into the first cell, in response to a path switch request
signal or a handover notification signal received from the first
radio base station.
Description
TECHNICAL FIELD
[0001] The present invention relates to a mobile communication
method.
BACKGROUND ART
[0002] In 3GPP, there has been discussed a technique called "MDT
(Minimisation of Drive Tests)" in which a specific mobile station
UE is caused to measure and report a desired radio quality.
CITATION LIST
Non Patent Literature
[0003] [NFL 1] 3GPP TR36.805, "Evolved Universal Terrestrial Radio
Access (E-UTRA); Study on minimization of drive-tests in next
generation networks"
[0004] [NFL 2] 3GPP TS37.320, "Radio measurement collection for
MDT"
SUMMARY OF INVENTION
Technical Problem
[0005] However, the above-mentioned MDT does not stipulate a
concrete method for causing a specific mobile station UE to measure
and report a desired radio quality when the specific mobile station
UE has moved into a cell in a specific area.
[0006] Therefore, the present invention has been achieved in view
of the above-mentioned problems, and an object thereof is to
provide a mobile communication method with which it is possible to
cause a specific mobile station UE to measure and report a desired
radio quality when the specific mobile station UE has moved into a
cell in a specific area.
Solution to Problem
[0007] A first characteristic of the present invention is
summarized in that a mobile communication method includes: a step
of transmitting, by a mobile management node, first instruction
information for instructing to measure and report a desired radio
quality to a first radio base station that manages a first cell
when it is detected that a mobile station has moved into the first
cell in a measurement-target area, and a step of transmitting, by
the first radio base station, the first instruction information to
the mobile station.
[0008] A second characteristic of the present invention is
summarized in that a mobile communication method includes: a step
of transmitting, by a mobile management node, first instruction
information for instructing to measure and report a desired radio
quality to a first radio base station that manages a first cell
when it is detected that a mobile station has performed an Attach
process in the first cell that lies inside a measurement-target
area, and a step of transmitting, by the first radio base station,
the first instruction information to the mobile station.
[0009] A third characteristic of the present invention is
summarized in that a mobile communication method includes: a step
of transmitting, by a mobile management node, first instruction
information for instructing to measure and report a desired radio
quality to a first radio base station that manages a first cell
when it is detected that a mobile station has changed to an
"RRC_CONNECTED state" in the first cell that lies inside a
measurement-target area, and a step of transmitting, by the first
radio base station, the first instruction information to the mobile
station.
Advantageous Effects of Invention
[0010] As described above, according to the present invention, it
is possible to provide a mobile communication method with which it
is possible to cause a specific mobile station UE to measure and
report a desired radio quality when the specific mobile station UE
has moved into a cell in a specific area.
BRIEF DESCRIPTION OF DRAWINGS
[0011] FIG. 1 is a diagram illustrating the entire configuration of
a mobile communication system according to a first embodiment of
the present invention.
[0012] FIG. 2 is a functional block diagram of a mobile management
node according to the first embodiment of the present
invention.
[0013] FIG. 3(a) and FIG. 3(b) are diagrams for explaining an
example of a method for managing a measurement-target area by the
mobile management node and a radio base station according to the
first embodiment of the present invention.
[0014] FIG. 4 is a sequence diagram illustrating operations in the
mobile communication system according to the first embodiment of
the present invention.
[0015] FIG. 5 is a function block diagram of a radio base station
according to a second embodiment of the present invention.
[0016] FIG. 6 is a sequence diagram illustrating operations in a
mobile communication system according to the second embodiment of
the present invention.
[0017] FIG. 7 is a diagram illustrating an example of a format of
an information element "Trace Activation" in "TRACE START" used in
the mobile communication system according to the second embodiment
of the present invention.
[0018] FIG. 8 is a diagram illustrating an example of a format of
"Handover Preparation Information" used in the mobile communication
system according to the second embodiment of the present
invention.
[0019] FIG. 9 is a diagram illustrating an example of a format of
an information element "AS-Config" in the "Handover Preparation
Information" used in the mobile communication system according to
the second embodiment of the present invention.
[0020] FIG. 10 is a diagram illustrating an example of a format of
an information element "MeasConfig" in the information element
"AS-Config" in the "Handover Preparation Information" used in the
mobile communication system according to the second embodiment of
the present invention.
[0021] FIG. 11(a) and FIG. 11(b) are diagrams illustrating an
example of a format of information elements
"MeasObjectToAddModList" and "MeasObjectEUTRA" in the information
element "MeasConfig" in the information element "AS-Config" in the
"Handover Preparation Information" used in the mobile communication
system according to the second embodiment of the present
invention.
DESCRIPTION OF EMBODIMENTS
Mobile Communication System According to First Embodiment of the
Present Invention
[0022] With reference to FIG. 1 to FIG. 4, a mobile communication
system according to a first embodiment of the present invention
will be described.
[0023] As illustrated in FIG. 1, the mobile communication system
according to the present embodiment includes an O&M (Operation
& Maintenance) server, a mobile management node MME (Mobility
Management Entity), and a radio base station eNB.
[0024] The mobile communication system according to the present
embodiment is configured to cause a specific mobile station UE to
measure and report a desired radio quality when the specific mobile
station DE has moved into a cell in a measurement-target area.
[0025] As illustrated in FIG. 2, the O&M server is configured
to set in advance information for specifying a measurement-target
area, a desired radio quality to be measured as MDT, a method of
reporting a measurement result in the MDT, and the like, to the
mobile management node MME, to a radio base station that manages a
cell in the measurement-target area.
[0026] For example, the information for specifying the
measurement-target area includes a cell ID ("E-CGI: Evolved Cell
Global Identity" or "PCI: Physical Cell Identity") for identifying
a cell included in the measurement-target area, "TAY (Traking Area
ID)" indicating an aggregation of a plurality of cells, and the
like.
[0027] As illustrated in FIG. 2, the mobile management node MME
includes a measurement-target-area management unit 11 and an
instruction unit 12.
[0028] The measurement-target-area management unit 11 is configured
to manage the information for specifying the measurement-target
area, the desired radio quality to be measured as the MDT, the
method of reporting the measurement result in the MDT, and the
like, which were acquired from the O&M server.
[0029] In addition, when the measurement-target area is designated
by latitude/longitude information as illustrated in FIG. 3(a) and
FIG. 3(b), the measurement-target-area management unit 11 may be
configured to manage a list of cells or TA (Tracking Area), which
include the measurement-target area designated by the
latitude/longitude information, as the information specifying the
measurement-target area.
[0030] When it is detected that the mobile station UE has moved
into a cell #1 in the measurement-target area, the instruction unit
12 is configured to transmit "Measurement Configuration #1` for
instructing to measure and report a desired radio quality to a
radio base station eNB#1 that manages the cell #1.
[0031] Specifically, the instruction unit 12 is configured to
transmit the "Measurement Configuration #1" by "TRACE START".
[0032] Furthermore, when it is detected that the mobile station 15E
has moved into a cell #2 that lies outside the measurement-target
area, the instruction unit 12 is configured to transmit
"Measurement Configuration #2" for instructing to stop measuring
and reporting the desired radio quality to a radio base station
eNB#2 that manages the cell #2.
[0033] Specifically, the instruction unit 12 is configured to
transmit the "Measurement Configuration #2" by "DEACTIVATE
TRACE".
[0034] Hereinafter, with reference to FIG. 4, the operation of the
mobile communication system according to the present embodiment
will be described.
[0035] As illustrated in FIG. 4, in step S1001, the radio base
station eNB#1 transmits "PATH SWITCH REQUEST" or "HO NOTIFY" to the
mobile management node MME when performing a handover process of
the mobile station UE to the cell #1.
[0036] When the "PATH SWITCH REQUEST" is received, the mobile
management node MME transmits "PATH SWITCH ACKNOWLEDGEMENT" to the
radio base station eNB#1 in step S1002, detects that the mobile
station UE has moved into the cell #1 in the measurement-target
area on the basis of E-CGI or TAI (Tracking Area Identity) of the
cell #1 included in the `PATH SWITCH REQUEST'' in step S1003, and
transmits the "TRACE START" including the "Measurement
Configuration #1" for instructing to measure and report the desired
radio quality to the radio base station eNB#1 in step S1004.
[0037] Meanwhile, when the "HO NOTIFY" is received, the mobile
management node MME detects that the mobile station UE has moved
into the cell #1 in the measurement-target area on the basis of the
E-CGI or TAI of the cell #1 included in the "PATH SWITCH REQUEST"
in the step S1003, and transmits the "TRACE START" including the
"Measurement Configuration #1" for instructing to measure and
report the desired radio quality to the radio base station eNB#1 in
the step S1004.
[0038] The process in the step S1003 is not limited to the case in
which processes (the processes in the step S1001 and step S1002)
regarding the handover have been performed. For example, the
process in the step S1003 may be performed when an Attach process,
in which the mobile station UE connects to a network, has been
performed, or when the mobile station UE has changed from an
"RRC_IDLE state" to an "RRC_CONNECTED state".
[0039] In such a case, on the basis of the E-COI or TAI of the cell
#1 included in "Initial UE Message" transmitted from the radio base
station eNB#1, the mobile management node MME detects that the
Attach process of the mobile station UE has been performed in the
cell #1 in the measurement-target area, or the mobile station TJE
has changed to the "RRC_CONNECTED state" in the cell #1 in the
measurement-target area.
[0040] The radio base station eNB#1 transmits "RRC Connection
Reconfiguration" including the "Measurement Configuration #1" to
the mobile station UE in step S1005, and the mobile station UE
transmits "RRC Connection Reconfiguration Complete" to the radio
base station eNB#1 in step S1006.
[0041] In step S1007, the mobile station UE measures and reports
the desired radio quality on the basis of the "Measurement
Configuration #1".
[0042] In step S1101, the radio base station eNB#1 transmits "PATH
SWITCH REQUEST" or "HO NOTIFY" to the mobile management node MME
when performing a handover process of the mobile station UE to the
cell #2.
[0043] When the "PATH SWITCH REQUEST" is received, the mobile
management node MME transmits "PATH SWITCH ACKNOWLEDGEMENT" to the
radio base station eNB#1 in step S1102, detects that the mobile
station UE has moved into the cell #2 on the basis of E-CGI or TAT
of the cell #2 included in the "PATH SWITCH REQUEST" in step S1103,
and transmits the "DEACTIVATE TRACE" including the "Measurement
Configuration #2" for instructing to stop measuring and reporting
the desired radio quality to the radio base station eNB#1 in step
S1104.
[0044] Meanwhile, when the "HO NOTIFY" is received, the mobile
management node MME detects that the mobile station UE has moved
into the cell #2 that lies outside the measurement-target area on
the basis of the E-CGI or TAI of the cell #2 included in the "PATH
SWITCH REQUEST" in the step S1103, and transmits the "DEACTIVATE
TRACE" including the "Measurement Configuration #2" for instructing
to stop measuring and reporting the desired radio quality to the
radio base station eNB#1 in the step S1104.
[0045] The radio base station eNB#1 transmits "RRC Connection
Reconfiguration" including the "Measurement Configuration #2" to
the mobile station UE in step S1105, and the mobile station UE
transmits "RRC Connection Reconfiguration Complete" to the radio
base station eNB#1 in step S1106.
[0046] Then, the mobile station UE stops measuring and reporting
the desired radio quality on the basis of the "Measurement
Configuration #2".
[0047] In accordance with the mobile communication system according
to the present embodiment, it is possible to cause a specific
mobile station UE to measure and report a desired radio quality
when the specific mobile station UE has moved into a cell in a
specific area.
Mobile Communication System According to Second Embodiment of the
Present Invention
[0048] With reference to FIG. 5 to FIG. 11, a mobile communication
system according to a second embodiment of the present invention
will be described while focusing on the difference from the mobile
communication system according to the above-mentioned first
embodiment.
[0049] As illustrated in FIG. 5, the radio base station eNB
includes a measurement-target-area management unit 21, a reception
unit 22, and a transmission unit 23.
[0050] The reception unit 22 is configured to receive a signal
transmitted by the mobile management node MME, the mobile station
UE, or another radio base station eNB.
[0051] For example, the reception unit 22 is configured to receive,
from the mobile management node MME, information for specifying a
measurement-target area, a desired radio quality to be measured as
MDT, a method of reporting a measurement result in the MDT, and the
like.
[0052] The measurement-target-area management unit 21 is configured
to manage the information for specifying the measurement-target
area, the desired radio quality to be measured as the MDT, the
method of reporting the measurement result in the MDT, and the
like, which were acquired from the mobile management node MME.
[0053] In addition, when the measurement-target area is designated
by latitude/longitude information as illustrated in FIG. 3(a) and
FIG. 3(b), the measurement-target-area management unit 21 may be
configured to manage a list of cells or TA (Tracking Area), which
include the measurement-target area designated by the
latitude/longitude information, as the information for specifying
the measurement-target area.
[0054] The transmission unit 23 is configured to transmit a signal
to the mobile management node MME, the mobile station UE, or
another radio base station eNB.
[0055] For example, the transmission unit 23 is configured to
transmit "RRC Connection Reconfiguration" including "Measurement
Configuration" to the mobile station UE.
[0056] Hereinafter, with reference to FIG. 6 and FIG. 7, the
operation of the mobile communication system according to the
present embodiment will be described.
[0057] As illustrated in FIG. 6, in step S2001, the radio base
station eNB#1 transmits "PATH SWITCH REQUEST" or "HO NOTIFY" to the
mobile management node MME when performing a handover process of
the mobile station UE to the cell #1.
[0058] When the "PATH SWITCH REQUEST" is received, the mobile
management node MME transmits "PATH SWITCH ACKNOWLEDGEMENT" to the
radio base station eNB#1 in step S2002, detects that the mobile
station UE has moved into the cell #1 in the measurement-target
area on the basis of E-CGI or TAI of the cell #1 included in the
"PATH SWITCH REQUEST" in step S2003, and transmits the "TRACE
START" including the "Measurement Configuration #1" for instructing
to measure and report the desired radio quality to the radio base
station eNB#1 in step S2004.
[0059] Meanwhile, when the "HO NOTIFY" is received, the mobile
management node MME detects that the mobile station UE has moved
into the cell #1 in the measurement-target area on the basis of the
E-CGI or TAI of the cell #1 included in the "PATH SWITCH REQUEST"
in the step S2003, and transmits the "TRACE START" including the
"Measurement Configuration #1" for instructing to measure and
report the desired radio quality to the radio base station eNB#1 in
the step S2004.
[0060] The process in the step S2003 is not limited to the case in
which processes (the processes of the step S2001 and the step
S2002) regarding the handover have been performed. For example, the
process in the step S2003 may be performed when an Attach process,
in which the mobile station UE connects to a network, has been
performed, or when the mobile station UE has changed from an
"RRC_IDLE state" to an "RRC_CONNECTED state".
[0061] In such a case, on the basis of the E-CGI or TAI of the cell
#1 included in "Initial UE Message" transmitted from the radio base
station eNB#1, the mobile management node MME detects that the
Attach process of the mobile station UE has been performed in the
cell #1 in the measurement-target area, or the mobile station UE
has changed to the "RRC_CONNECTED state" in the cell #1 in the
measurement-target area.
[0062] The radio base station eNB#1 transmits "RRC Connection
Reconfiguration" including the "Measurement Configuration #1" to
the mobile station UE in step S2005, and the mobile station UE
transmits "RRC Connection Reconfiguration Complete" to the radio
base station eNB#1 in step S2006.
[0063] In step S2007, the mobile station UE measures and reports
the desired radio quality on the basis of the "Measurement
Configuration #1".
[0064] In step S2101, the radio base station eNB#1 transmits
"HANDOVER REQUEST" to the radio base station eNB#2 when performing
a handover process of the mobile station UE to the cell #2.
[0065] Furthermore, for example, as illustrated in FIG. 7, the
radio base station eNB#1 transmits information (for example, a list
of TAI, a list of E-CGI, and an area designated by
latitude/longitude information) for specifying the
measurement-target area, which was acquired from the mobile
management node MME, through an information element "TRACE
ACTIVATION" in the "HANDOVER REQUEST".
[0066] In step S2102, the radio base station eNB#2 detects that the
mobile station UE has moved into the cell #2 that lies outside the
measurement-target area, based on the E-CGI, the TAI and the like
included in the "TRACE ACTIVATION".
[0067] In step S2103, the radio base station eNB#2 transmits "RRC
Connection Reconfiguration" including "Measurement Configuration
#2" to the mobile station UE, and the mobile station UE transmits
"RRC Connection Reconfiguration Complete" to the radio base station
eNB#2.
[0068] Then, the mobile station UE stops measuring and reporting
the desired radio quality on the basis of the "Measurement
Configuration #2".
[0069] In addition, as illustrated in FIG. 8 to FIG. 11, the radio
base station eNB#1 may transmit the information (for example, a
list of TAI, a list of E-CGI, and an area designated by
latitude/longitude information) for specifying the
measurement-target area, which was acquired from the mobile
management node MME, through an information element
"MeasObjectEUTRA" in an information element
"MeasObjectToAddModList" in an information element "MeasConfig" in
an information element "AS-Config" in an information element
"Handover Preparation Information" in the "HANDOVER REQUEST".
[0070] The characteristics of the present embodiment as described
above may be expressed as follows.
[0071] A first characteristic of the present embodiment is
summarized in that a mobile communication method includes: a step
of transmitting, by a mobile management node MME, "Measurement
Configuration #1 (first instruction information)" for instructing
to measure and report a desired radio quality to a radio base
station eNB#1 (a first radio base station) that manages a cell #1
(a first cell) when it is detected that a mobile station UE has
moved into the cell #1 in a measurement-target area; and a step of
transmitting, by the radio base station eNB#1, "RRC Connection
Reconfiguration" including the "Measurement Configuration #1" to
the mobile station UE.
[0072] In the first characteristic of the present embodiment, the
mobile communication method may further include: a step of
transmitting, by the mobile management node MME, "Measurement
Configuration #2 (second instruction information)" for instructing
to stop measuring and reporting the desired radio quality to a
radio base station eNB#2 (a second radio base station) that manages
a cell #2 (a second cell) when it is detected that the mobile
station UE has moved into the cell #2 that lies outside the
measurement-target area; and a step of transmitting, by the radio
base station eNB#2, the "Measurement Configuration #2" to the
mobile station UE.
[0073] In the first characteristic of the present embodiment, the
mobile communication method may further include: a step of
transmitting, by the mobile management node MME, information for
specifying the measurement-target area to the radio base station
eNB#1; a step of transmitting, by the radio base station eNB#1, the
information for specifying the measurement-target area to the radio
base station eNB#2 that manages the cell #2; and a step of
transmitting, by the radio base station eNB#2, the "Measurement
Configuration #2" for instructing to stop measuring and reporting
the desired radio quality to the mobile station UE when it is
detected that the mobile station UE has moved into the cell #2 on
the basis of the information for specifying the measurement-target
area.
[0074] In the first characteristic of the present embodiment, the
radio base station eNB#1 may transmit the information for
specifying the measurement-target area to the radio base station
eNB#2 through "HANDOVER REQUEST (a handover request signal)".
[0075] In the first characteristic of the present embodiment, the
mobile management node MME may detect that the mobile station UE
has moved into the cell #1 in response to "PATH SWITCH REQUEST (a
path switch request signal)" or "HO NOTIFY (a handover notification
signal)" received from the radio base station eNB#1.
[0076] A second characteristic of the present embodiment is
summarized in that a mobile communication method includes: a step
of transmitting, by a mobile management node MME, "Measurement
Configuration #1" to a radio base station eNB#1 that manages a cell
#1 when it is detected that a mobile station UE has performed an
Attach process in the cell #1 in a measurement-target area; and a
step of transmitting, by the radio base station eNB#1, the
"Measurement Configuration #1" to the mobile station UE.
[0077] A third characteristic of the present embodiment is
summarized in that a mobile communication method includes: a step
of transmitting, by a mobile management node MME, "Measurement
Configuration #1" to a radio base station eNB#1 that manages a cell
#1 when it is detected that a mobile station UE has changed to an
"RRC_CONNECTED state" in the cell #1 in a measurement-target area;
and a step of transmitting, by the radio base station eNB#1,
"Measurement Configuration #1" to the mobile station UE.
[0078] Note that the operation of the O&M server, the mobile
management node MME, the radio base station eND, or the mobile
station UE may be performed by hardware, a software module
performed by a processor, or a combination thereof.
[0079] The software module may be arranged in a storage medium of
an arbitrary format such as a RAM (Random Access Memory), a flash
memory, a ROM (Read Only Memory), an EPROM (Erasable Programmable
ROM), an EEPROM (Electronically Erasable and Programmable ROM), a
register, a hard disk, a removable disk, or a CD-ROM.
[0080] The storage medium is connected to the processor so that the
processor can write and read information into and from the storage
medium. Such a storage medium may also be accumulated in the
processor. Such a storage medium and processor may be arranged in
an ASIC. The ASIC may be arranged in the O&M server, the mobile
management node MME, the radio base station eNB, or the mobile
station UE. Furthermore, such a storage medium and processor may be
arranged in the O&M server, the mobile management node MME, the
radio base station eNB, or the mobile station UE as discrete
components.
[0081] Thus, the present invention has been explained in detail by
using the above-mentioned embodiments; however, it is obvious that
for persons skilled in the art, the present invention is not
limited to the embodiments explained herein. The present invention
can be implemented as a corrected and modified mode without
departing the gist and the scope of the present invention defined
by the claims. Therefore, the description of the specification is
intended for explaining the example only and does not impose any
limited meaning to the present invention.
REFERENCE SIGNS LIST
[0082] UE . . . Mobile station
[0083] MME . . . Mobile management node
[0084] 11 . . . Measurement-target-area management unit
[0085] 12 . . . Instruction unit
[0086] eNB . . . Radio base station
[0087] 21 . . . Measurement-target-area management unit
[0088] 22 . . . Reception unit
[0089] 23 . . . Transmission unit
* * * * *