Sidelink Device Discovery via Periodic Messages
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face challenges in efficiently performing sidelink device discovery and relay reselection in sidelink communication networks, particularly in maintaining reliable connections and extending coverage.
Innovation Solution
The method involves transmitting periodic discovery messages over a sidelink interface to identify second sidelink devices and performing relay reselection based on radio link failure indications, using a processor to manage the discovery and reselection processes, and transmitting source Layer 2 identifiers to third wireless devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If periodic discovery messages are transmitted to identify sidelink devices, then device discovery capability is improved, but network signaling overhead increases
Solution Approach 1:
The discovery message is designed to serve multiple functions simultaneously: it enables device discovery, carries relay capability information, and facilitates connection establishment. By embedding multiple types of information in a single message structure, the patent reduces the number of separate signaling messages needed while maintaining comprehensive device discovery and relay identification capabilities.
2Reliability
If relay reselection is performed based on radio link failure indication, then connection reliability is improved, but network management complexity increases
Solution Approach 1:
The user equipment autonomously performs relay reselection by monitoring radio link failure indications and independently selecting new relay devices based on pre-configured criteria and available information. This self-service mechanism eliminates the need for complex network-controlled reselection procedures, reducing network management complexity while maintaining connection reliability through automated failover.
3Measurement precision
If source layer 2 identifiers are transmitted to third wireless devices, then device identification accuracy is improved, but information transmission overhead increases
Solution Approach 1:
The patent extracts and transmits only the essential identification information (source layer 2 identifiers) needed for device recognition and connection establishment, rather than transmitting complete device profiles or redundant identification data. This selective extraction approach maintains accurate device identification while minimizing the volume of transmitted information.
Data Source
AI summary
Apparatuses, methods, and systems are disclosed for sidelink device discovery. One method includes transmitting, at a first sidelink device and over a sidelink interface, a periodic discovery message for performing discovery of at least one second sidelink device. The method includes discovering the at least one second sidelink device over the sidelink interface. The method includes transmitting at least one source layer 2 identifier of the at least one second sidelink device discovered by the first sidelink device to a third wireless device.