UE-to-UE Relay Link Identifier Updates With Merged Signaling
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing link identifier updates for UE-to-UE relay communication, particularly in evolving 5G networks, which impact the reliability and efficiency of UE-to-UE relay services.
Innovation Solution
A method and apparatus are introduced to facilitate link identifier updates through a relay UE that manages user information changes between source and target UEs, ensuring seamless communication by performing relay update procedures with the target UE in response to link identifier requests.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the relay UE performs relay update procedures for each link identifier update request from the source end UE, then the link identifier updates are accurate and timely, but the signaling overhead and processing complexity increase
Solution Approach 1:
The patent combines multiple link identifier update requests into a single relay update procedure. When the relay UE receives multiple link identifier update request messages from the source end UE, it aggregates these updates and performs a unified relay update procedure with the target end UE, rather than executing separate procedures for each update request. This merging approach maintains accurate and timely link identifier updates while significantly reducing signaling overhead and processing complexity.
2Measurement precision
If the relay UE performs individual relay update procedures for each link identifier update, then the update accuracy is maintained, but the communication efficiency and service performance deteriorate
Solution Approach 1:
The patent merges multiple link identifier update operations into a single consolidated relay update procedure. The relay UE accumulates multiple link identifier update requests from the source end UE and processes them together in one update procedure with the target end UE. This approach maintains the accuracy of link identifier updates while improving communication efficiency by reducing the frequency of update procedures and minimizing service interruptions.
3Loss of information
If the relay UE manages user information changes through multiple separate update procedures, then the user info accuracy is maintained, but the signaling overhead and network resource consumption increase
Solution Approach 1:
The patent combines multiple user information update operations into a single relay update procedure. When the relay UE receives multiple link identifier update request messages containing user information changes from the source end UE, it aggregates these changes and transmits them together in one consolidated update procedure to the target end UE. This merging strategy maintains user information accuracy while significantly reducing signaling overhead and network resource consumption compared to executing separate procedures for each update.
Data Source
AI summary
A method and device for a relay User Equipment (UE) are disclosed. In one embodiment, the relay UE establishes a first direct link with a source end UE and a second direct link with a target end UE for supporting UE-to-UE (U2U) relay communication between the source end UE and the target end UE via the relay UE. The relay UE also receives a first link identifier update request message from the source end UE for updating a first user info of the source end UE to a second user info of the source end UE. Furthermore, the relay UE, in response to reception of the first link identifier update request message, performs a first relay update procedure with the target end UE.