CA2725469C - Location registration processing method and mobile station - Google Patents

Location registration processing method and mobile station Download PDF

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Publication number
CA2725469C
CA2725469C CA2725469A CA2725469A CA2725469C CA 2725469 C CA2725469 C CA 2725469C CA 2725469 A CA2725469 A CA 2725469A CA 2725469 A CA2725469 A CA 2725469A CA 2725469 C CA2725469 C CA 2725469C
Authority
CA
Canada
Prior art keywords
location registration
sib
registration processing
system information
mobile station
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CA2725469A
Other languages
French (fr)
Other versions
CA2725469A1 (en
Inventor
Hiroaki Yamagishi
Hideyuki Sakuramoto
Takehiro Ida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTT Docomo Inc
Original Assignee
NTT Docomo Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NTT Docomo Inc filed Critical NTT Docomo Inc
Publication of CA2725469A1 publication Critical patent/CA2725469A1/en
Application granted granted Critical
Publication of CA2725469C publication Critical patent/CA2725469C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W60/00Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H04W60/04Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration using triggered events
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel

Abstract

Disclosed is a location registration processing method that has a process to start location registration processing based on specified system data and a process that acquires the remainder of a plurality of ystem data after location registration processing has begun, when a mobile station (UE) acquires specified system data that include, among a plurality of system data reported by a wireless base station (eNB), data required for location registration processing.

Description

Description Title of Invention: LOCATION P_EGTSTRATTON PROCESSING
METHOD 2,1N-13 MOBILE STATION
Technical Field [0001]
The present invention relates to a location registration processing method in which a mobile station performs location reg strati OD processing, and also relates to the mobile station.
Background Art
[0002]
Generally, a mobile station HE is configured to receive broadcast information broadcasted in cells, when turned on by a user, and to execute an Attach procedure on the basis of the broadcast information.
[0003]
In this respect, the mobile station HE cannot receive a supply of communication services such as calling and receiving of calls unless the mobile station completes the location registra_tion processing by the Attach procedure.
[0004]
The mobile station HE is also configured to perform the location registration processing, when changing the location registrat on area as a result of makno-, cell selection or cell reseler-ti on.

ln Sammarv of invention PT-obleat to be Solved by the iavention [0008]
However, there is a problem that it takes time for the mobile station LIE to get ready to receive the supply of communication services after the mobile station UE is turned on. This is because it takes about one second for the mobile station UE to receive the broadcast information and it takes about 100 ms for the mobile station UE to execute the Attach procedure.
[0009]
Likewise, also in a case where the location registration area is to be changed as a result of performing cell selection or cell reselection, there is a problem that the mobile station UE requires certain time to perform the location registration processing and then to get ready to receive the supply of communication services.
[0010]
The present invention has been made in view of the above problems, and an object of the present invention is to provide a location registration processing method and a mobile station which are capable of reducing as much as possible time from when location registration processing becomes necessary to when the mobile station gets ready to receive a supply of communication services.
Solution to Problem [0011]
A first aspect of the present invention is summarized as a location registration processing method in which a mobile station performs location registration processing, the method including the step of: starting, at the mobile station, the location registration processing on the basis of predetermined system information, when acquiring the predetermined system information among a plurality of pieces of system information broadcasted by a radio base station, and before completing -, acquiring the rest of the plurality of pieces of system information, the predetermined system information including information necessary for performing the location registration processing.
[0012]
In the first aspect, the location registration processing method can further include the step of: acquiring the rest of the plurality of pieces of system information after the location registration processing is started.
[0013]
In the first aspect, the predetermined system information can include MIB, SIB 1, and SIB 2.
[0014]
A second aspect of the present invention is summarized as a mobile station including a location registration processor unit configured to start a location registration processing on the basis of predetermined system information, when acquiring the predetermined system information among a plurality of pieces of system information broadcasted by a radio base station, and before completing acquiring the rest of the plurality of pieces of system information, the predetermined system information including information necessary for performing the location registration processing.
[0015]
In the second aspect, the mobile station can further include an acquiring unit configured to acquire the rest of the plurality of pieces of system information after the location registration processing is started.
[0016]

=
In the second aspect, the predetermined system information can include NIB, SIB 1, and SIB 2.
[0017]
A third aspect of the present invention is summarized as a location registration processing method in which a mobile station performs location registration processing, the method including the step of: starting, at the mobile station, calling/receiving processing on the basis of predetermined system information, when acquiring the predetermined system information among a plurality of pieces of system information broadcasted by a radio base station, before completing acquiring the rest of the plurality of pieces of system information, and after completing the location registration processing, the predetermined system information including information necessary for performing the location registration processing.
[0018]
A fourth aspect of the present invention is summarized as a mobile station including a calling-receiving processor unit configured to start calling/receiving processing on the basis of predetermined system information, when acquiring the predetermined system information among a plurality of pieces of system information broadcasted by a radio base station, before completing acquiring the rest of the plurality of pieces of system information, and after completing the location registration processing, the predetermined system information including information necessary for performing the location registration processing.
5 ADVANTAGEOUS EFFECTS OF INVENTION
[0019]
As described above, according to the present invention, it is possible to provide a location registration processing method and a mobile station which are capable of reducing as much as possible time from when location registration processing becomes necessary to when the mobile station gets ready to receive a supply of communication services.
Brief Description of Drawings [0020]
[FIG. 1] FIG. 1 is an overall configurational view of a mobile communication system according to a first embodiment of the present invention.
[FIG. 2] FIG. 2 is a functional block diagram of a mobile station according to the first embodiment of the present invention.
[FIG. 3] FIG. 3 is a view showing an example of broadcast information transmitted by a radio base station according to the first embodiment of the present invention.
[FIG. 4] FIG. 4 is a sequence diagram showing an example of an operation of the mobile communication system according to the first embodiment of the present invention.
Description of Embodiment [0021]
(Configuration of Mobile Communication System According to First Embodiment of the Present Invention) A configuration of a mobile communication system
6 =
according to a first embodiment of the present invention will be described with reference to FIG. 1 to FIG. 3.
[0022]
As shown in FIG. 1, in the mobile communication system according to the present embodiment, a mobile station UE is configured to perform location registration processing on the basis of multiple pieces of system information "MIB (Master Information Block)" and "SIBs (System Information Blocks) 1 to 8" which are included in broadcast information broadcasted by a radio base station eNB.
[0023]
As shown in FIG. 2, the mobile station UE includes a broadcast information receiver unit 11 and a location registration processor unit 12.
[0024]
The broadcast information receiver unit 11 is configured to receive multiple pieces of system information "MIB" and "SIBs 1 to 8" which are included in broadcast information broadcasted by the radio base station eNB.
[0025]
The "MIB" is system information including a system frame number (SFN) and physical layer parameters such as a cell width, the number of antennas, and configuration information on a PHICH
(Physical Hybrid-ARQ Indicator Channel) . The "MIB" is mapped to and transmitted on a "P-BCH (Physical-Broadcast Channel) "
on a PDSCH in cycles of 40 ms.
[0026]
The "SIB 1" is system information including "PLMN (Public Land Mobile Network) -ID", "Tracking Area Code", "Cell-ID", cell
7 = CA 02725469 2010-10-26 barring information, scheduling information on the "SIBs 2 to
8", and the like. The "SIB 1" is mapped to and transmitted on "DL-SCH (Downlink-Shared Channel)" on a PDSCH in cycles of 80 ms.
[0027]
The "SIB 2" includes access restriction information and the like, the "SIB 3" includes information on cell reselection of the mobile station itself, the "SIB 4" includes information such as information on accessible neighbor cells or inaccessible neighbor cells in the same frequency, and the "SIB
5" includes information such as information on accessible neighbor cells or inaccessible neighbor cells in different frequencies.
[0028]
The "SIB 6" includes information such as priority and frequency list information in the UTRA scheme, the "SIB 7"
includes information such as priority and frequency list information in the GERAN scheme, and the "SIB 8" includes information such as priority and frequency list information in the CDMA2000 scheme.
[0029]
Among these, predetermined system information including information that the mobile station UE needs for performing the location registration processing includes the "NIB", the "SIB
1", and the "SIB 2". Here, the "SIBs 3 to 8" are pieces of system information which include information that the mobile station UE needs for performing cell selection or cell reselection.
[0030]
Specifically, each of the "SIB 3" to the "SIB 8" includes =
information necessary to support mobility of the mobile station UE in an idle mode.
[0031]
The location registration processor unit 12 is configured to perform location registration processing by an Attach procedure at the time when the mobile station UE is turned on.
Moreover, the location registration processor unit 12 is configured to perform location registration processing also in a case where the mobile station LIE needs a change in its location registration area as a result of cell selection or cell reselect ion.
[0032]
Specifically, the location registration processor unit 12 is configured to start location registration processing on the basis of predetermined system information "MIB", "SIB 1", and "SIB 2", which includes information necessary for performing the location registration processing, among multiple pieces of system information "MIB" and "SIBs 1 to 8"
broadcasted by the ratio base station eNB, when the mobile station LIE acquires the predetermined system information "MIB", "SIB 1", and "SIB 2".
[0033]
Here, the broadcast information receiver unit 11 is configured to acquire the rest "SIBs 3 to 8" of the multiple pieces of system information during the performance of the location registration processing.
[0034]
Note that the location registration processor unit 12 may complete the location registration processing, before the
9 =
, broadcast information receiver unit 11 completes acquiring the rest "SIBs 3 to 8" of the multiple pieces of system information.
In this case, the mobile station UE can receive a supply of communication services after completing the location registration processing.
[0035]
In addition, as shown in FIG. 3, the broadcast information receiver unit 11 can receive the pieces of system information "SIBs 3 to 8" which are transmitted together with user data, via a "PDSCH (Physical Downlink Shared Channel)" corresponding to a "PDCCH (Physical Downlink Control Channel)", including "C-RNTI (Cell-Radio Network Temporary Identifier)" or "SI-RNTI
(System Information-Radio Network Temporary Identifier) ".
[0036]
(Operation of Mobile Communication System According to First Embodiment of the Present Invention) An example of an operation of the mobile communication system according to the first embodiment of the present invention will be described with reference to FIG. 4.
[0037]
As shown in FIG. 4, a radio base station eNB broadcasts the "MIB" to a particular cell in Step S1001, broadcasts the "SIB 1" to the particular cell in Step S1002, and broadcasts the "SIB 2" to the particular cell in Step S1003.
[0038]
In Step S1004, a mobile station UE detects that the mobile station UE has acquired predetermined system information "MIB", "SIB 1", and "SIB 2" which includes information necessary for performing location registration processing. In Step S1005, the mobile station UE starts location registration processing by transmitting the "RRC CONNECTION REQUEST" to the radio base station eNB.
[0039]
In Step S1006, the radio base station eNB transmits, to the mobile station UE, the "RRC CONNECTION SETUP" for notifying the mobile station UE of information necessary for establishing an RRC connection.
[0040]
In Step S1007, the radio base station eNB transmits the "SIB 3" to the particular cell, even while the mobile station UE is in the course of the location registration processing.
[0041]
In Step S1008, the mobile station UE transmits, to the radio base station eNB, the "RRC CONNECTION SETUP COMPLETE" for notifying the radio base station eNB that the establishment of the RRC connection has been completed.
[0042]
Thereafter, the radio base station eNB broadcasts the "SIB 4" to the particular cell in Step S1009, and broadcasts the "SIB 5" to the particular cell in Step S1010.
[0043]
In this respect, the sequence shown in FIG. 4 is an example.
The steps may be changed in order between the broadcasting procedure of the "SIBs 3 to 8" by the radio base station eNB
(Steps S1007, S1009, S1010, ) and the procedure of establishing the RRC connection (Steps S1004, S1005, S1006, and S1008) , since these procedures are independent of each other.
[0044]

=
Note that the mobile station UE can perform calling/receiving processing after the completion of the location registration processing.
[0045]
(Advantageous Effect of Mobile Communication System According to First Embodiment of the Present Invention) In the mobile communication system according to the first embodiment of the present invention, a mobile station is configured to start location registration processing when having received the "MIB", the "SIB 1", and the "SIB 2" which include the minimum necessary information for performing the location registration processing, even though the mobile station has not received the remaining information the "SIBs 3 to 8" necessary for cell selection or cell reselection. For this reason, the mobile communication system according to the first embodiment of the present invention is capable of reducing time from when the location registration processing becomes necessary to when the mobile station becomes ready to receive a supply of communication services.
[0046]
Note that operation of the above described mobile station UE and the radio base station eNB may be implemented by means of hardware, a software module executed by a processor, or a combination of both.
[0047]
The software module may be provided in any type of storage medium such as an 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.
[0048]
The storage medium is connected to the processor so that the processor can read and write information from and to the storage medium. Also, the storage medium may be integrated into the processor. Also, the storage medium and the processor may be provided in an ASIC. The ASIC may be provided in the mobile station LIE and the radio base station eNB. Also, the storage medium and the processor may be provided in the mobile station LIE and the radio base station eNB as a discrete component.
[0049]
The scope of the claims should not be limited by the preferred embodiments set forth herein, but should be given the broadest interpretation consistent with the description as a whole.

Claims (4)

WHAT IS CLAIMED IS:
1. A location registration processing method in which a mobile station performs location registration processing, the method comprising the step of:
starting, at the mobile station, the location registration processing on the basis of a Master Information Block (MIB) and a first and a second System Information Block (SIB 1 to SIB 2), when acquiring the MIB and SIB 1 to SIB 2 among a plurality of pieces of system information broadcasted by a radio base station, and before completing acquiring the rest of the plural-ity of pieces of system information, the MIB and SIB 1 to SIB 2 comprising information necessary for performing the location registration processing, wherein the plurality of pieces of system information comprises the MIB, the SIB 1 to SIB 2, and System Information Blocks (SIBs) 3 to 8; and wherein SIBs 3 to 8 are pieces of system information which include information that the mobile station UE needs for performing cell selection or cell reselection.
2. The location registration processing method according to claim 1 comprising the step of:
acquiring the rest of the plurality of pieces of system information after the location registration processing is started.
3. A mobile station comprising a location registration processor unit configured to start a location registration processing on the basis of a Master Information Block (MIB) and a first and a second System Information Block (SIB 1 to SIB 2), when acquiring the MIB and SIB 1 to SIB 2 among a plurality of pieces of system information broadcasted by a radio base station, and before completing acquiring the rest of the plurality of pieces of system information, the MIB and SIB 1 to SIB 2 comprising information necessary for performing the location registration processing, wherein the plurality of pieces of system Information comprises the MIB, the SIB 1 to SIB 2, and System Information Blocks (SIBs) 3 to 8; and wherein SIBs 3 to 8 are pieces of system information which include information that the mobile station UE needs for performing cell selection or cell reselection.
4. The mobile station according to claim 3 comprising an acquiring unit configured to acquire the rest of the plurality of pieces of system information after the location registration processing is started.
CA2725469A 2008-05-02 2009-04-30 Location registration processing method and mobile station Expired - Fee Related CA2725469C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2008120551A JP4335954B1 (en) 2008-05-02 2008-05-02 Location registration processing method and mobile station
JP2008-120551 2008-05-02
PCT/JP2009/058471 WO2009133922A1 (en) 2008-05-02 2009-04-30 Location registration processing method and mobile station

Publications (2)

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CA2725469A1 CA2725469A1 (en) 2009-11-05
CA2725469C true CA2725469C (en) 2015-04-21

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EP (1) EP2271162B1 (en)
JP (1) JP4335954B1 (en)
KR (1) KR101021802B1 (en)
CN (1) CN102017740B (en)
AU (1) AU2009240945B2 (en)
BR (1) BRPI0911911A2 (en)
CA (1) CA2725469C (en)
MX (1) MX2010011801A (en)
PL (1) PL2271162T3 (en)
RU (1) RU2464736C2 (en)
WO (1) WO2009133922A1 (en)

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Publication number Publication date
US8855666B2 (en) 2014-10-07
RU2010144404A (en) 2012-06-10
JP4335954B1 (en) 2009-09-30
PL2271162T3 (en) 2014-08-29
BRPI0911911A2 (en) 2015-10-13
KR20100131516A (en) 2010-12-15
US20110117929A1 (en) 2011-05-19
EP2271162B1 (en) 2014-03-26
CN102017740B (en) 2012-10-24
CN102017740A (en) 2011-04-13
RU2464736C2 (en) 2012-10-20
EP2271162A4 (en) 2011-04-06
JP2009272818A (en) 2009-11-19
MX2010011801A (en) 2010-12-06
KR101021802B1 (en) 2011-03-17
CA2725469A1 (en) 2009-11-05
AU2009240945B2 (en) 2012-10-11
WO2009133922A1 (en) 2009-11-05
EP2271162A1 (en) 2011-01-05
AU2009240945A1 (en) 2009-11-05

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