Recovery method for multimedia broadcast and multicast service
A technology of multimedia broadcasting and restoration methods, applied in the field of restoration of MBMS services
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[0035] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0036] The invention proposes a method for recovering and rebuilding the abnormally released MBMS service on RNC or BSC. Such as image 3 As shown in , when the RNC or BSC releases the corresponding MBMS resources abnormally due to the internal failure of the RNC or BSC, or the transmission failure between the RNC or BSC and the SGSN, and the SGSN releases the MBMS resources related to the RNC or BSC abnormally, the SGSN The released MBMS service on the RNC or BSC is recovered by reinitiating the MBMS session start procedure to the RNC or BSC that has released the MBMS resources abnormally.
Embodiment 1
[0037] Embodiment one: (reference figure 2 and Figure 4 )
[0038] The MBMS sessions of MBMS services A and B have been established between RNC1 and SGSN1. After RNC1 releases the MBMS session of service A abnormally, a resource reset process is triggered. Specific steps are as follows:
[0039] Step 410, RNC1 detects that the MBMS Iu signaling connection corresponding to MBMS service A is interrupted, locally releases the MBMS resources of service A, including MBMS Iu signaling connection and Iu signaling connection identifier, or also includes MBMS RAB, and sends a reset resource to SGSN1 Message (RESETRESOURCE), which contains the Iu signaling connection identifier corresponding to the released MBMS Iu signaling connection, which is allocated by SGSN1 when the MBMS service A session is established and passed through the MBMS session start request message (MBMS Session Start Request) Bring to RNC1;
[0040] Step 420, after receiving the reset resource message of RNC1,...
Embodiment 2
[0044] Embodiment two: (reference figure 2 and Figure 5 )
[0045] BSC1 and SGSN1 establish MBMS sessions of MBMS services A, B, and C, and BSC1 initiates a reset process to SGSN1 after power-off and restart. Specific steps are as follows:
[0046] Step 510, BSC1 sends a reset message RESET to SGSN1 after power-off and restart, so that the resources of BSC and SGSN are consistent;
[0047] Step 520, after receiving the reset message from BSC1, SGSN1 releases all MBMS resources related to BSC1, that is, the MBMS resources of MBMS services A, B, and C, and returns a reset confirmation message (RESET ACKNOWLEDGE) to BSC1;
[0048] In step 530, SGSN1 initiates the session initiation procedures of MBMS services A, B and C respectively to BSC1.
[0049] Re-establish the MBMS session bearers of services A, B, and C between SGSN1 and BSC1, and each corresponding MBMS session start request message includes the Iu signaling connection identifier redistributed by SGSN1; BSC1 recei...
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