Inter-UE Split Bearers for Multi-Access Reliability
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Solution Overview
Problem
In cellular communication systems, particularly in 5G and future 6G networks, there is a challenge in effectively managing communication between multiple user equipment (UEs) and a base station when multiple UEs are used to access a single service, requiring efficient data transmission and reception strategies to ensure reliable communication.
Innovation Solution
The method involves configuring synchronized Packet Data Convergence Protocol (PDCP) entities between UEs and a base station, allowing them to cooperate in data transmission and reception by using sidelink communication and establishing inter-UE split bearers to manage data paths efficiently, ensuring that data is appropriately processed and transmitted even if one UE does not receive the data directly from the base station.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple UEs are used to access a single service, then communication reliability is improved, but device complexity and path management difficulty increase
Solution Approach 1:
The patent introduces a network apparatus as an intermediary to manage and control the communication paths between multiple UEs and the base station. The network apparatus configures and coordinates the paths, including sidelink paths, thereby centralizing the complexity of managing multiple communication routes and reducing the burden on individual UEs while maintaining high communication reliability through coordinated multi-UE access
2Reliability
If packet duplication is implemented, then communication reliability is improved, but data transmission redundancy increases
Solution Approach 1:
The patent dynamically changes the parameter of data duplication by configuring the network apparatus to control whether packet duplication is performed. The network apparatus can adjust the duplication status based on current communication conditions, service requirements, and UE capabilities, thereby achieving reliable data transmission only when necessary and reducing unnecessary data redundancy and resource consumption
3Measurement precision
If synchronized PDCP entities are configured between UEs, then data reception accuracy is improved, but communication protocol complexity increases
Solution Approach 1:
The network apparatus serves as an intermediary that configures and coordinates synchronized PDCP entities between multiple UEs. By centralizing the configuration management in the network apparatus, the patent reduces the complexity burden on individual UEs while ensuring proper synchronization and accurate data reception through coordinated protocol configuration across the multi-UE system
Data Source
AI summary
A communication control method according to a first aspect includes configuring, by a network apparatus, to a first user equipment a path between the network apparatus and the first user equipment via a second user equipment, the configuring includes transmitting, by the network apparatus, a message to configure the path to the first user equipment, and the message includes information regarding an RLC channel and information regarding a radio bearer.