SGSN MBMS Bearer Capability Verification
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Solution Overview
Problem
Current MBMS activation processes are complex and inefficient, leading to increased network signaling interactions and resource wastage due to the need for verifying UE MBMS bearer capabilities against Required MBMS Bearer Capabilities, resulting in rejected subscribers unable to receive services effectively.
Innovation Solution
A method that simplifies the MBMS activation process by having the SGSN verify UE MBMS bearer capabilities during PDP Context creation, allowing for early rejection of inadequate requests and enabling subscribers to switch to unicast mode, thereby reducing network complexity and resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network verifies UE MBMS bearer capabilities against Required MBMS Bearer Capabilities during activation, then service quality is ensured, but network signaling interactions increase and activation complexity increases
Solution Approach 1:
The patent applies preliminary action by performing capability verification during PDP Context creation rather than during MBMS activation. The SGSN checks whether the UE's MBMS bearer capabilities meet the required capabilities when creating the PDP Context, before the UE actually requests MBMS service. This early verification prevents unnecessary activation procedures for UEs that cannot support the service, thereby reducing activation complexity and signaling interactions while ensuring service quality through proper capability matching.
2Adaptability or versatility
If the network allows all UE activation requests, then user access is maximized, but network resources are wasted on inadequate subscribers
Solution Approach 1:
The patent performs capability verification during PDP Context creation as a preliminary filtering step. The SGSN checks if the UE's MBMS bearer capabilities satisfy the required capabilities before the UE can activate MBMS service. This early identification and rejection of inadequate subscribers prevents network resource waste on UEs that cannot properly receive MBMS services, while still allowing maximum access for capable UEs who pass the verification.
3Productivity
If MBMS activation procedure is simplified, then activation speed increases, but capability verification reliability decreases
Solution Approach 1:
The patent segments the verification process into two distinct stages: (1) capability verification during PDP Context creation, and (2) MBMS activation. By separating these functions, the patent achieves both goals - the segmented approach allows early filtering of inadequate UEs during PDP creation (improving activation speed by preventing unnecessary activation procedures) while maintaining verification reliability through dedicated capability checking at the appropriate stage.
Data Source
AI summary
The present invention discloses a method for activating a Multimedia Broadcast/Multicast Service (MBMS) comprising the steps: a. sending a message which carries MBMS bearer capabilities of a user equipment (UE) from the UE to a SGSN which the UE belongs to after passing authorization; b. verifying whether the MBMS bearer capabilities of the UE are less than Required MBMS Bearer Capabilities, if the SGSN has the Required MBMS Bearer Capabilities; and c. rejecting a request for activating an MBMS Context if the MBMS bearer capabilities of the UE are less than the Required MBMS Bearer Capabilities, or creating an MBMS UE Context if the MBMS bearer capabilities of the UE are not less than the Required MBMS Bearer Capabilities. The method can simplify the signaling interaction between the network entities, reduce the network complexity and save the network resources.