Multicast Session Joining and Leaving via Unified Signaling
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in joining and leaving multicast sessions, leading to increased latency, power consumption, and interference in wireless networks due to the need for multiple messages and significant signaling overhead.
Innovation Solution
A method and apparatus for wireless communication that allow a user equipment (UE) to join or leave a multicast broadcast service (MBS) session using a single message, reducing latency and conserving resources by optimizing session establishment and release requests through a protocol data unit (PDU) session management mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple messages are used for joining and leaving multicast sessions, then session management can be completed, but latency increases and power consumption increases
Solution Approach 1:
The patent combines multiple separate messages (session establishment request and multicast session join request, or session release request and multicast session leave request) into a single unified message. This merging eliminates the need for sequential message exchanges, directly reducing latency while maintaining complete session management functionality through the integrated message structure.
Solution Approach 2:
The unified session management message serves multiple functions simultaneously - it can establish or release a PDU session while also joining or leaving an MBS session. This multi-functional approach allows the single message to replace what previously required multiple specialized messages, reducing both latency and power consumption while maintaining reliable session management.
2Reliability
If multiple messages are used for joining and leaving multicast sessions, then session management can be completed, but power consumption increases
Solution Approach 1:
The patent merges multiple message transmissions into a single unified message exchange. Since each message transmission consumes power at the UE and involves network processing, reducing the number of messages from two to one directly reduces power consumption while the unified message maintains all necessary session management functions.
Solution Approach 2:
The universal session management message structure can handle both PDU session establishment/release and MBS session join/leave operations in a single transmission. This multi-functionality eliminates redundant power-consuming message exchanges while ensuring complete session management is achieved through the consolidated message.
3Reliability
If multiple messages are used for joining and leaving multicast sessions, then session management can be completed, but signaling overhead increases
Solution Approach 1:
The patent combines multiple signaling messages into a single unified message structure. This merging reduces the total quantity of signaling data transmitted over the network, lowering signaling overhead while the integrated message contains all necessary information for complete session management operations.
4Reliability
If multiple messages are used for joining and leaving multicast sessions, then session management can be completed, but interference in wireless network increases
Solution Approach 1:
The patent merges multiple message transmissions into a single unified message exchange. Since each message transmission generates electromagnetic interference in the wireless network, reducing the number of transmissions from two to one directly reduces the harmful interference generated by session management signaling while maintaining complete session management functionality.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a network, a session establishment request that includes at least one indication associated with a multicast broadcast service (MBS) session. Accordingly, the UE may receive, from the network, a response to the session establishment request. Additionally, or alternatively, the UE may transmit, to the network, a session release request that includes at least one indication associated with the MBS session. Accordingly, the UE may receive, from the network, a response to the session release request. Numerous other aspects are described.