Radio Bearer Multi-Path Relay Configuration With Primary Path Selection
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Solution Overview
Problem
Existing solutions fail to effectively configure multi-path transmission in multi-path relay communication scenarios, which can enhance data throughput and reliability by utilizing both direct and indirect links.
Innovation Solution
A communication method that involves sending indication information to configure multi-path transmission for a radio bearer, associating it with both direct and indirect links, and determining the primary path based on link type, using RLC bearers and GTP-U tunnels to establish and maintain multiple transmission paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multi-path transmission is configured for radio bearer, then data throughput and reliability are improved, but configuration complexity and path selection difficulty increase
Solution Approach 1:
The patent segments the transmission paths into primary path and secondary path, with the primary path being the default path for data transmission and the secondary path being an alternative path. This segmentation simplifies the configuration by clearly defining roles of different paths without requiring complex multi-path management protocols.
Solution Approach 2:
The patent introduces path selection information as an intermediary element that mediates between the multi-path configuration and the actual data transmission decisions. This intermediary structure allows the network to configure multiple paths while using a simple selection mechanism based on path selection information rather than complex real-time decision algorithms.
2Reliability
If PDCP duplication is activated for multi-path transmission, then data reliability is improved, but transmission overhead and processing complexity increase
Solution Approach 1:
Instead of implementing full PDCP duplication across all paths (excessive action), the patent applies partial duplication only when needed based on path selection information. The system can choose to use single-path transmission when conditions allow, avoiding unnecessary duplication overhead while maintaining reliability when multi-path benefits are required.
3Productivity
If multiple transmission paths are established, then data throughput is improved, but path management and selection difficulty increase
Solution Approach 1:
The patent applies preliminary action by pre-configuring path selection information that determines the primary path before data transmission occurs. This pre-determined path selection eliminates the need for complex real-time path measurement and decision-making, allowing the system to quickly route data through the optimal path without difficult detection or measurement processes.
Data Source
AI summary
This application discloses a communication method and a communication apparatus. The method includes: sending a first message, where the first message includes first indication information, and the first indication information indicates to configure multi-path transmission for a first radio bearer of first user equipment and indicates that the first radio bearer is associated with a direct link and an indirect link; and receiving a second message, where the second message includes second indication information, the second indication information indicates that a primary path corresponding to the first radio bearer is included in a first link, and the first link is a direct link or an indirect link associated with the first radio bearer.