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Mobile communication system, mobile station, switching center, and method for position registration for mobile station

A mobile communication system, mobile switching center technology, applied in wireless communication, electrical components, network data management, etc., can solve problems such as network congestion, location registration device selected composition is not disclosed, etc., to achieve the effect of suppressing selection changes

Active Publication Date: 2014-10-29
NEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] Furthermore, if Figure 13 As shown, when the number of MSC / VLR belonging to the location registration device pool (MSC / VLR pool) increases or decreases, the location registration device (MSC / VLR) selected by the IMSI Hash will change, so the location registration is completed Almost all UEs will implement location registration device (MSC / VLR) reselection, resulting in overall congestion of the network
[0021] In addition, in Patent Documents 1 and 2, the selection of the location registration device constituting the location registration device pool as described above is self-evident, and the configuration of selecting a location registration device whose location has been registered after the mobile station moves is not disclosed.

Method used

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  • Mobile communication system, mobile station, switching center, and method for position registration for mobile station
  • Mobile communication system, mobile station, switching center, and method for position registration for mobile station
  • Mobile communication system, mobile station, switching center, and method for position registration for mobile station

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no. 1 Embodiment approach

[0049] Next, first to fourth embodiments of the present invention using NRI (Network Resource Indicator) as information for specifying a location registration device will be described in detail with reference to the drawings. image 3 It is a figure which schematically shows the structure of 1st Embodiment of this invention.

[0050] refer to image 3 , showing a plurality of MSC / VLRs 301-30n constituting an MSC / VLR pool for performing location management of UE (mobile station) 10 on the circuit switching network side, and a plurality of MSC / VLRs 301 to 30n configured on the circuit switching network side and performing mobility management of UE 10 or a network configuration including SGSN 201 and 202 for authentication processing and the like. In addition, in image 3 In the example of , various RAN nodes or various gateways described in Patent Document 1 are omitted. In addition, the MSC / VLR pool refers to a configuration in which a plurality of MSCs / VLRs provide services...

no. 2 Embodiment approach

[0064] Next, a second embodiment of the present invention in which the new SGSN (SGSN 202 ) of the above-mentioned first embodiment is replaced with an MME will be described. Figure 5 It is a figure which schematically shows the structure of 2nd Embodiment of this invention. and image 3 The first embodiment shown is different in that the SGSN 202 is replaced by the MME 212 .

[0065] The MME 212 is a switching center arranged on the side of the packet switching network, and performs mobility management and authentication processing of the UE 10 similarly to the SGSN described above.

[0066] Next, the operation of this embodiment will be described in detail with reference to the drawings. Figure 6 It is a timing chart for explaining the operation of the second embodiment of the present invention. In addition, in the following description, the SGSN 201 is referred to as "old SGSN", and the MME 212 is referred to as "new MME".

[0067] The operation of this embodiment is ...

no. 3 Embodiment approach

[0070] Next, a third embodiment of the present invention in which the old SGSN (SGSN 201 ) of the above-mentioned first embodiment is replaced with an MME will be described. Figure 7 It is a figure which schematically shows the structure of the 3rd Embodiment of this invention. and image 3 The first embodiment shown is different in that the SGSN 201 is replaced by the MME 211 .

[0071] The MME 211 is a switching center arranged on the side of the packet switching network, and performs mobility management and authentication processing of the UE 10 similarly to the SGSN described above.

[0072] Next, the operation of this embodiment will be described in detail with reference to the drawings. Figure 8 It is a timing chart for explaining the operation of the third embodiment of the present invention. In addition, in the following description, the MME 211 is referred to as "old MME", and the SGSN 202 is referred to as "new SGSN".

[0073] The operation of this embodiment i...

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Abstract

A decrease is realized in network load caused by a change in selection of location registration device or an increase or decrease in the number of installations, on a circuit switching network side. A mobile communication system includes a mobile station, a packet switching station, and a plurality of location registration devices that perform location management of the mobile station. With respect to the mobile station, after one location registration device is already selected from among the plurality of location registration devices, when the mobile station performs location registration, an NRI (Network Resource Identifier) included in a TMSI (Temporary Mobile Station Identifier) is transmitted to the packet switching station. The packet switching station makes a request for location registration with respect to the one location registration device, based on the NRI.

Description

[0001] This application is a divisional application of Application No. 201280003102.8 entitled "Mobile Communication System, Mobile Station, Switching Station, and Method for Location Registration of Mobile Station" submitted to the State Intellectual Property Office of China on August 10, 2012. technical field [0002] [Remarks for related application] [0003] The present invention claims priority based on Japanese Patent Application: Japanese Patent Application No. 2011-176557 (applied on August 12, 2011), and the entire description content of the same application is incorporated into this specification by reference. [0004] The present invention relates to a mobile communication system, a mobile station, a switching station, and a location registration method for a mobile station, in particular to a mobile communication system, a mobile station, and a location registration method in which a plurality of location registration devices for managing the location of the mobile ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W8/06
CPCH04W8/065H04W64/00H04W60/00H04W8/04H04W8/06H04W8/08H04W8/22
Inventor 大西浩二田村利之佐佐木秀伸冈部洵也
Owner NEC CORP
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