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A method for preventing or reducing multimedia broadcasting and multicast service interruption

A technology for multimedia broadcasting and multicasting services, applied in the field of preventing service interruptions, which can solve problems such as MBMSRAB service interruptions and failure to receive MBMS services, and achieve the effect of reducing MBMS interruptions and reliable reception

Inactive Publication Date: 2013-03-20
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] If an MBMS RAB is established between the BSC or RNC and the SGSN in the scenario, since all UEs under the BSC or RNC share the MBMS RAB to receive the corresponding MBMS services, the release of the MBMS RAB will cause serious service interruption, resulting in BSC or RNC All UEs under the RNC cannot receive corresponding MBMS services

Method used

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  • A method for preventing or reducing multimedia broadcasting and multicast service interruption
  • A method for preventing or reducing multimedia broadcasting and multicast service interruption
  • A method for preventing or reducing multimedia broadcasting and multicast service interruption

Examples

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example 1

[0031] See Figure 4 , an RNC that supports and activates the NSSF function is connected to SGSN 1, SGSN 2...SGSNn at the same time, when the MBMS session starts, the RNC and SGSN 1, SGSN 2...SGSN n all establish MBMS Iu signaling connections, but MBMS RAB is only established with SGSN 1, and correspondingly MBMS service data is sent from SGSN 1 to RNC.

[0032] SGSN 1 resets or other abnormalities occur or SGSN 1 detects a transmission network failure with RNC, RNC can no longer receive MBMS service data from SGSN 1, SGSN 1 sends CN reset or CN reset resource to RNC, RNC only releases the communication with SGSN 1 The MBMS Iu signaling connection does not release the MBMS RAB established on the RNC, but selects an available SGSN 2, and then sends the MBMS RAB ESTABLISHMENT INDICATION message to SGSN 2, which contains the "transport layer IP address" corresponding to the previously established MBMS RAB and "IU Transport Relationship", thus redirecting the MBMS RAB to the SGSN...

example 2

[0036] See Figure 4 , a BSC that supports and activates the NSSF function is connected to SGSN 1, SGSN 2...SGSN n at the same time, when the MBMS session starts, BSC and SGSN 1, SGSN 2...SGSN n all establish MBMS Iu signaling connections, However, MBMS RAB is only established with SGSNn, and the corresponding MBMS service data is sent from SGSNn to BSC.

[0037] The transmission network between BSC and SGSN n is abnormal, which causes the link between BSC and SGSN n to be unreachable or the corresponding MBMS Iu signaling connection to be interrupted. After detecting this, BSC only releases the MBMS Iu signaling connection with SGSN n and does not release Instead, the MBMS RAB established on the BSC sends an MBMS RAB ESTABLISHMENTINDICATION message to SGSN 2, which contains the "transport layer IP address" and "IU transport relationship" corresponding to the previously established MBMS RAB, thereby redirecting the MBMS RAB to SGSN 2.

[0038] After receiving the MBMS RAB EST...

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Abstract

The present invention provides a method for preventing or reducing MBMS being interrupted, relating to the mobile communication field, especially in MBMS system, a method of preventing services being interrupted under the condition of activating NNSF function by RNC or BSC, when connecting SGSN starts to malfunction, or the transmitting network between RNC or BSC and SGSN starts to malfunction. When the service supports malfunction of releasing MBMS resources by RNC or BSC between node SGSN and RNC or BSC, RNC or BSC does not release the former MBMS RAB, the former MBMS RAB is re-oriented to the new selecting SGSN by selecting usable SGSN from other SGSN of the MBMS Iu signaling connection established by MBMS RAB, and RNC or BSC. The method ensures UE of RNC or BSC continuously, credibly receiving MBMS, effectively preventing or reducing MBMS being interrupted.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular to MBMS (Multimedia Broadcast Multicast Service: MultimediaBroadcast / Multicast Service) system, activated in RNC (Radio Network Controller: Radio Network Controller) or BSC (Base Station Controller: Base Station Controller) In the case of NNSF (Non-Access Layer Node Selection Function: NAS node selection Function), when the connected SGSN (Serving GPRS Support Node: Serving GPRS Support Node) fails, or the transmission network between RNC or BSC and SGSN A method to prevent business interruption in the event of a failure. Background technique [0002] With the popularization of large-screen multifunctional mobile phones, the application of mobile data services is becoming more and more extensive. The demand for mobile communications is no longer satisfied with the services of telephone, messaging and mobile Internet browsing. In order to effectively use mobile network res...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/06H04W36/34
Inventor 郭龙平
Owner ZTE CORP