ISR (Interrupt Service Routine) processing method, device and system in CSFB scenario

A scenario and location area technology, applied in the field of communication, can solve problems such as circuit service interruption, paging failure, and SGSN’s inaccuracy, so as to improve performance and ensure service experience

Inactive Publication Date: 2013-06-12
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] When the UE performs a separate RAU process, the UE sends a RAU Request message to the Serving GPRS Support Node (SGSN, Serving GPRS Support Node), and the message carries the CSFBcapability indication. At this time, the SGSN cannot confirm whether the SGs association will be released
Therefore, the SGSN cannot make an accurate decision on whether to activate the ISR. If the SGSN chooses not to activate the ISR at this time, it may affect the performance of the ISR in the CSFB scenario. For example, if the SGs are not released, the actual situation is that the ISR can continue to be maintained Activated state; if the SGSN chooses to activate ISR at this time, it may cause interruption of CS domain services and affect user service experience. E-UTRAN network, accord...

Method used

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  • ISR (Interrupt Service Routine) processing method, device and system in CSFB scenario
  • ISR (Interrupt Service Routine) processing method, device and system in CSFB scenario
  • ISR (Interrupt Service Routine) processing method, device and system in CSFB scenario

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0065] Example 1: The SGSN obtains the original routing area information of the UE from the locally stored UE context information, and further obtains the original location area information of the UE, such as figure 2 shown, including the following steps:

[0066] Step 20: UE sends a routing area update request message RAU Request;

[0067] The CSFB capability indication can be included in the message; if the attachment of the UE to the SGSN has been completed before, and the CSFB capability indication is included in the attach request message sent to the SGSN, the RAU Request can choose not to include the CSFB capability indication. After receiving the CSFB capability indication, the SGSN stores it in the context information of the UE.

[0068] Step 21: The base station subsystem (BSS, Base Station Subsystem, including BSC and BTS) / radio network subsystem (RNS, Radio Network Subsystem) forwards the RAURequest message sent by the UE to the SGSN, and at the same time provides...

example 2

[0080] Example 2: The routing area update request message sent by the UE includes the original routing area information of the UE, and the SGSN obtains the original routing area information of the UE from the routing area update request message, and further obtains the original location area information of the UE, like image 3 shown, including the following steps:

[0081] Step 30: The UE sends a routing area update request message RAU Request, and the routing area update request message RAU Request includes the UE's original routing area information Old RAI;

[0082] The CSFB capability indication can be included in the message; if the attachment of the UE to the SGSN has been completed before, and the CSFB capability indication is included in the attach request message sent to the SGSN, the RAU Request can choose not to include the CSFB capability indication. After receiving the CSFB capability indication, the SGSN stores it in the context information of the UE.

[0083] ...

example 3

[0092] Example 3: The SGSN interacts with the MME that establishes the ISR association to obtain the current location area information of the UE, such as Figure 4 shown, including the following steps:

[0093] Step 40: UE sends a routing area update request message RAU Request;

[0094] The CSFB capability indication can be included in the message; if the attachment of the UE to the SGSN has been completed before, and the CSFB capability indication is included in the attach request message sent to the SGSN, the RAU Request can choose not to include the CSFB capability indication. After receiving the CSFB capability indication, the SGSN stores it in the context information of the UE.

[0095] Step 41: The BSS / RNS forwards the RAU Request message sent by the UE to the SGSN, and at the same time provides the UE's current routing area information Current RAI to the SGSN;

[0096] Step 42: The SGSN sends a context request message Context Request to the MME that establishes the I...

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Abstract

The embodiment of the invention relates to an ISR (Interrupt Service Routine) processing method in a CSFB scenario, belonging to the communication field. The method comprises the following steps of: receiving a routing area refresh request message of CSFB-activated user equipment (UE); confirming whether the location area of the UE is changed or not; and if so, indicating that the UE does not activate the ISR. The embodiment of the invention also relates to ISR processing device and system in a CSFB scenario and realizes that an SGSN (Service GPRS Supporting Node) can accurately judge whetherto activate the ISR based on the condition that whether the location area is changed or not, solves the problem that the SGSN accurately decides whether to activate the ISR when the UE initiates a single RAU (Remote Access Unit) in the CSFB scenario, improves the ISR performance in the CSFB scenario, and ensures the service experience of users.

Description

technical field [0001] The present invention relates to the field of communication technology, and in particular to a method, device and system for processing idle mode signaling reduction (ISR, Idle mode signaling reduction) in a circuit switched domain service back to traditional network processing (CSFB, CS fallback) scenario. Background technique [0002] In an evolved packet system (EPS, Evolved Packet System) network, when a user equipment (UE, User Equipment) is about to initiate a Circuit Switched (CS, Circuit Switched) domain originating (MO, Mobile Originating) service, the UE needs to first transfer Go to the General Packet Radio Service (GPRS, General Packet Radio Service) / Universal Mobile Telecommunications System (UMTS, Universal Mobile Telecommunications System) network, choose a 2G / 3G cell to camp on, and then start the MO service. When the mobile switching center (MSC, Mobile SwitchCenter) receives a terminal call (MT, Mobile Terminated) service, the MSC sen...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04W8/24H04W76/04H04W76/06H04W88/14
CPCY02B60/43Y02D30/00
Inventor 陈中平
Owner HUAWEI TECH CO LTD
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