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Method, device and system for optimizing ISR (Information Storage and Retrieval)

An optimization method and technology of an optimization device, which are applied in the field of ISR optimization, can solve the problems of reducing the utilization efficiency of network resources and the limitation of ISR functions, and achieve the effects of improving the utilization rate of network resources and optimizing the signaling structure.

Inactive Publication Date: 2010-12-22
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In the process of implementing the present invention, the inventors found that the existing ISR technology has the following problems: in the scenario where the UE performs TAU on the E-UTRAN network alone, the RAU process from the E-UTRAN network to the UTRAN / GERAN network cannot be avoided; or the UE alone In the scenario of RAU on UTRAN / GERAN network, the TAU process from UTRAN / GERAN network to E-UTRAN network cannot be avoided, so the function of ISR is limited, which reduces the utilization efficiency of network resources

Method used

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  • Method, device and system for optimizing ISR (Information Storage and Retrieval)
  • Method, device and system for optimizing ISR (Information Storage and Retrieval)

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Embodiment 1

[0045] Figure 4 This is a flowchart of an ISR optimization method according to Embodiment 1 of the present invention. like Figure 4 As shown, when the UE performs location update in the network, this embodiment includes:

[0046] Step S102: Pre-store the mapping relationship between TAI List and RAI;

[0047] Step S104: Receive a location update request initiated by the UE forwarded by the base station;

[0048] Step S106: Allocate the TAI List_B corresponding to the current location to the UE, and obtain the RAI_B corresponding to the TAI List_B according to the mapping relationship between the TAIList and the RAI;

[0049] Step S108: The base station sends a location update response to the UE, the location update response includes the information of TAI List_B and RAI_B, and instructs the UE to perform location area update according to the information of TAI List_B and RAI_B.

[0050] The ISR optimization method in this embodiment can be applied to the E-UTRAN network....

Embodiment 2

[0055] Figure 5 This is a schematic diagram of an application scenario of the ISR optimization method according to the second embodiment of the present invention. like Figure 5 As shown, the UE is under the coverage of the E-UTRAN network, its ISR is active, and the P a Location and P b The location is located in the location management area of ​​the same MME. UE is first located at P a The location is within the coverage of the E-UTRAN network TAI List_A. The UE stores the information of TAIList_A and RAI_A, and TAI List_A includes TAI a1 , TAI a2 , TAI a3 , TAI a4 Four tracking areas; then move to P b location, P b The location is within the coverage of TAI List_B, only TAI is given for clarity b1 a tracking area. In the above scenario, a static mapping table of the mapping relationship between TAI List and RAI is pre-stored in the MME or related entities. Image 6 This is a flowchart of an ISR optimization method in an E-UTRAN network according to Embodiment ...

Embodiment 3

[0072] Figure 7 This is a flowchart of the third embodiment of the present invention ISR optimization method. like Figure 7 As shown, when the UE performs location update in the network, this embodiment includes:

[0073] Step S302: Pre-store the mapping relationship between RAI and TAI List;

[0074] Step S304: Receive a location update request initiated by the UE forwarded by the base station;

[0075] Step S306: Allocate the RAIcB corresponding to the current location to the UE, and obtain the TAI List_B corresponding to the RAI_B according to the mapping relationship between the RAI and the TAI List;

[0076] Step S308: The base station sends a location update response to the UE, the location update response includes the information of RAI_B and TAI List_B, and instructs the UE to perform location area update according to the information of RAI_B and TAI List_B.

[0077] The ISR optimization method in this embodiment can be applied to a UTRAN / GERAN network. In this ...

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Abstract

The invention discloses a method, a device and a system for optimizing an ISR (Information Storage and Retrieval). The method is used for carrying out position updating on a user terminal in an E-UTRAN (Universal Terrestrial Radio Access) network and comprises the following steps of prestoring a mapping relationship of a TAI List and an RAI; receiving a position updating request which is retransmitted by a base station and is initiated by the user terminal; distributing a TAI List_B corresponding to a current position to the user terminal, and obtaining an RAI_B corresponding to the TAI List_B according to the mapping relationship of the TAI List and the RAI; sending a position updating response to the user terminal through the base station, and indicating the user terminal to carry out position region updating according to information of the TAI List_B and the RAI_B. The invention can reduces signaling for carrying out position updating by subsequent UE in a UTRAN / GERAN network, thereby optimizing a signaling structure and enhancing the network resource utilization ratio.

Description

technical field [0001] The present invention relates to the field of core network and wireless technologies in the communication industry, and in particular, to a method, device and system for ISR optimization. Background technique [0002] In order to provide higher user data rate, higher system capacity and better coverage, and reduce the cost of operators, the 3GPP organization proposes an Evolved PacketCore (EPC for short) architecture. 3GPP services based on the above architecture will be provided through different access technologies, so seamless mobility between different access technologies should be supported. Different access technologies such as General Packet Radio System (GPRS); general Mobile communication system (Universal Mobile Telecommunications System, UMTS for short); Long Term Evolution (Long Term Evolution, LTE for short). [0003] figure 1 It is a schematic diagram of the prior art EPC architecture. like figure 1 As shown, the network element funct...

Claims

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Application Information

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IPC IPC(8): H04W60/00
Inventor 侯志强胡健朱琳
Owner CHINA MOBILE COMM GRP CO LTD
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