Relay Mode Selection During Discovery for UE Connection Setup
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Solution Overview
Problem
Existing communication systems lack a method to determine the appropriate relay mode between a remote UE and a relay UE, leading to inefficiencies in relay connection establishment.
Innovation Solution
A method and device for determining a relay mode, including a relay device that selects and communicates the relay mode to be used, and a remote device that receives and selects the relay mode, with network devices performing corresponding processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple relay modes are supported for different communication scenarios, then the adaptability of the relay system is improved, but the complexity of determining the appropriate relay mode increases
Solution Approach 1:
The patent applies preliminary action by having the remote UE send relay mode preference information to the relay UE before the actual relay connection is established. This allows the relay mode to be determined in advance during the discovery phase, rather than deciding it later when connection establishment begins, thus reducing the complexity of mode determination during the critical connection setup process.
Solution Approach 2:
The patent uses the discovery message as an intermediary carrier to transmit relay mode preference information between the remote UE and relay UE. This intermediary mechanism enables the exchange of mode preferences without requiring complex direct negotiation protocols, simplifying the overall determination process while supporting multiple relay modes.
2Reliability
If relay mode determination is performed during connection establishment, then the reliability of relay connection is improved, but the connection establishment time increases
Solution Approach 1:
The patent performs relay mode determination during the discovery phase before connection establishment begins. By sending and processing relay mode preference information in the discovery message, the appropriate relay mode is identified in advance, ensuring reliable connection setup while avoiding time-consuming mode negotiations during the actual connection establishment process.
Solution Approach 2:
The patent segments the relay connection process into distinct phases: discovery phase (where mode determination occurs) and connection establishment phase (where the predetermined mode is executed). This segmentation allows mode determination to be completed separately before connection setup, reducing the time impact on overall connection establishment while maintaining reliability.
3Ease of operation
If the remote UE sends relay mode preference information to the relay UE, then the ease of operation is improved, but the signaling overhead increases
Solution Approach 1:
The patent merges the relay mode preference information with the existing discovery message structure. Instead of creating separate signaling messages for mode preferences, the information is combined into the discovery message that is already being exchanged between remote UE and relay UE for relay discovery purposes. This approach improves ease of operation by enabling preference-based mode selection while minimizing additional signaling overhead by reusing existing message structures.
Data Source
AI summary
Embodiments of the present disclosure relate to a method for determining a relay scheme, and a device. The method comprises: a relay device determining a relay scheme to be used in a process of establishing a connection. Embodiments of the present disclosure enables determination of a relay scheme to be used between a relay device and a remote device.