Neighbor Cell Information Signaling for Non-Connected Multicast Continuity
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Solution Overview
Problem
Existing communication technologies only support multicast services in a connected state, leading to high network overheads when multiple terminals are interested, and there is no efficient method for maintaining multicast service continuity during terminal mobility in a non-connected state.
Innovation Solution
A neighbor cell information indication method that allows terminals to obtain information about neighbor cells supporting multicast service in a non-connected state through first signaling, enabling timely reselection or state switching to ensure continuous multicast service reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If terminals are kept in connected state to receive multicast service, then multicast service reception is supported, but network overhead increases when large quantity of terminals are interested
Solution Approach 1:
The patent changes the operational state parameter of terminals from connected state to non-connected state for receiving multicast services. By introducing a non-connected state operation mode, the system allows terminals to receive multicast services without maintaining active connected states, thereby reducing network overhead while ensuring service reliability through periodic state checks and transitions.
2Quantity of substance
If terminals are released to non-connected state for receiving multicast service, then network overhead is reduced, but multicast service continuity during terminal mobility may be affected
Solution Approach 1:
The patent implements a feedback mechanism where terminals in non-connected state periodically check neighbor cell information for multicast service support. When a terminal detects that the current or neighbor cell supports multicast service in non-connected state, it maintains or transitions to non-connected state. When multicast service is not supported, the terminal transitions to connected state, ensuring service continuity through this closed-loop feedback control.
Solution Approach 2:
The patent applies preliminary action by having terminals obtain and store neighbor cell information about multicast service support in advance. This pre-acquired information allows terminals to make informed state transition decisions before actually needing to switch states, ensuring seamless multicast service continuity during mobility without interrupting service reception.
3Productivity
If neighbor cell information is provided to terminals, then terminals can perform timely reselection or state switching, but signaling overhead increases
Solution Approach 1:
The patent extracts only the essential neighbor cell information related to multicast service support from the complete cell information set. By providing specifically targeted information about multicast service capability in neighbor cells rather than full cell details, the system enables efficient terminal reselection and state switching decisions while minimizing signaling overhead to only the necessary data elements.
Data Source
AI summary
This application discloses a neighbor cell information indication method and apparatus, a terminal, and a network-side device. The neighbor cell information indication method in embodiments of this application includes: The terminal obtains, from first signaling of a serving cell, target information about whether a neighbor cell supports receiving a multicast service in a non-connected state.