PoC Server Load Reduction via Client Group Segmentation
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Solution Overview
Problem
In the existing PTT over Cellular (PoC) standard, media bursts generated by clients during a service session are centralizedly distributed by a PoC server, leading to high network traffic and server load, especially when supporting multimedia or discrete media bursts, without efficient use of terminal capabilities and geographic distribution of clients.
Innovation Solution
The method involves grouping clients into two session groups, where media burst data sent by a client holding the floor is forwarded through the first session group to the second session group, reducing the number of times the PoC server needs to forward data and utilizing client capabilities for distributed network resource sharing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If media bursts are centrally distributed by PoC server, then all clients can receive media data reliably, but server load and network traffic near server increase significantly
Solution Approach 1:
The patent segments the centralized media distribution function into multiple distributed client nodes. Instead of one PoC server handling all media bursts, the system divides clients into different groups where selected clients (seed clients) act as distributed forwarding nodes. This segmentation reduces the burden on the central PoC server while maintaining reliable delivery through multiple paths.
Solution Approach 2:
The patent introduces intermediary clients (seed clients) that act as mediators between the PoC server and other clients. These intermediary clients receive media bursts from the server and forward them to their respective client groups, distributing the forwarding workload and reducing direct traffic to the PoC server.
2Reliability
If PoC server forwards all media bursts to all clients, then complete coverage is achieved, but network efficiency decreases due to redundant transmissions
Solution Approach 1:
The patent segments the client base into multiple groups, each served by a designated seed client. Media bursts are transmitted once to each seed client, who then distributes to their group members. This eliminates redundant transmissions while ensuring all clients receive the media data through their group's seed client.
Solution Approach 2:
Instead of the PoC server directly transmitting to all clients (traditional approach), the patent inverts the distribution model by having clients distribute to other clients through seed clients. This inverted approach reduces server traffic while maintaining complete client coverage.
3Device complexity
If centralized distribution is used, then simple client implementation is required, but PoC server becomes a bottleneck for multimedia and discrete media bursts
Solution Approach 1:
The patent introduces seed clients as intermediary nodes that handle the complex forwarding logic. Instead of requiring the PoC server to manage all distribution details, seed clients act as mediators that receive media from the server and intelligently distribute to their groups, reducing server processing requirements.
Solution Approach 2:
The patent enables clients to serve themselves by having seed clients autonomously forward media bursts to their group members without requiring continuous server intervention. This self-service approach distributes the processing workload from the server to the client network, improving overall system capacity.
Data Source
AI summary
A method for transmitting media burst data includes grouping all clients in a session into a first session group and a second session group. The media burst data is forwarded to the clients in the first session group and sent to the clients in the second session group through the clients in the first session group.