Relay Mode Matching for Stable Remote Device Selection
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Solution Overview
Problem
Existing technologies lack an efficient method for selecting a suitable relay device in relay communication systems, particularly in 3GPP ProSe architectures, which affects the stability and efficiency of communication connections between remote and network devices.
Innovation Solution
A method for selecting a relay device based on the relay modes that both the remote device and the relay device can support, using discovery and response messages to indicate compatible relay modes, ensuring matching capabilities for effective communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If relay device selection is performed without considering relay mode compatibility, then device complexity is reduced, but communication reliability deteriorates
Solution Approach 1:
The patent applies preliminary action by having the relay device pre-indicate its supported relay modes in discovery messages or response messages before actual communication occurs. This allows the remote device to select a compatible relay device in advance based on mode matching, ensuring communication reliability without adding complex real-time negotiation processes.
2Reliability
If relay mode matching is implemented, then communication reliability is improved, but information loss increases due to additional message exchanges
Solution Approach 1:
The patent merges the relay mode indication function with existing discovery messages or response messages used in the relay establishment process. By combining multiple functions (relay discovery, relay selection, and mode indication) into a single message exchange, the patent avoids additional overhead while ensuring relay mode compatibility.
3Adaptability or versatility
If multiple relay modes are supported, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent extracts the relay mode indication information and places it in standardized message fields that are already part of the protocol. This allows devices to support multiple relay modes without increasing internal complexity, as the mode information is externally indicated rather than internally managed through complex state machines.
Data Source
AI summary
Provided are a method for selecting a relay device, a remote device and a relay device. The method includes: a relay device sending a first message to a remote device, herein the first message is used for indicating a relay mode which can be provided by the relay device; and the remote device selecting a first relay device from among at least one relay device on the basis of a relay mode to which the remote device can adapt, and a relay mode which can be provided by the at least one relay device, herein the first relay device is used for realizing communication between the remote device and a network device, and the relay mode which can be provided by the first relay device matches the relay mode to which the remote device can adapt.


