Relay Multicast Transmission Optimizing Network Resource Usage
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Solution Overview
Problem
Current relay-based multicast technologies waste network transmission resources as the source terminal sends multiple copies of data to relay nodes, which are then forwarded to multiple destination terminals, leading to inefficient use of network resources.
Innovation Solution
A method and system where a relay selection server determines the optimal multicast relay node for multiple destination terminals, allowing the source terminal to send data only once to the relay node, which then multicasts it to all corresponding terminals, thereby conserving channel resources and enhancing transmission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the source terminal sends multiple copies of data to relay nodes for multicast transmission, then the data can be delivered to multiple destination terminals, but the network transmission resources are wasted due to occupying multiple UE-RN data transmission path resources
Solution Approach 1:
The patent applies the copying principle by having the relay node create copies of the received data packet and distribute them to multiple destination terminals. Instead of the source terminal sending multiple copies to the relay node, the source sends one copy to the relay node, which then copies it to multiple destinations (RN-UE1 and RN-UE2 paths), thereby reducing network resource occupation while maintaining multicast functionality
Solution Approach 2:
The patent merges multiple data transmission paths into a single path at the source terminal. By consolidating the transmission to one relay node instead of multiple separate transmissions, the system reduces the occupation of UE-RN data transmission path resources while the relay node handles the distribution to multiple destinations
2Reliability
If relay equipments are incorporated into the communication link to change the default route, then data transmission delay and packet losses can be reduced, but the complexity of the transmission system increases
Solution Approach 1:
The patent uses the relay node as an intermediary between the source terminal and multiple destination terminals. The relay node receives data from the source terminal and forwards copies to multiple destinations, acting as a mediator that improves transmission reliability by providing an alternative path while managing the complexity through centralized relay functionality rather than multiple complex source configurations
Data Source
AI summary
The present application provides a method and a system for relay multicast transmission, a relay selection server, relay nodes and terminals. According to the present application, the first terminal sends a relay selection request to the relay selection server; the relay selection server determines, according the relay selection request, multiple second terminals which will communicate with the first terminal, and determines the multicast relay node corresponding to at least two second terminals, and sends relay multicast notification to the first terminal and the multicast relay node separately; the first terminal sends a piece of data to the multicast relay node, and said multicast relay node copies the data from the first terminal and multicasts the data to at least two corresponding second terminals. According to the present application, terminals only need to send a piece of data to the multicast relay node, and the data are copied and multicasted to multiple other terminals by the multicast relay node, thereby improving the transmission efficiency.