Sidelink Identification for Reduced-Capability 5G Devices
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Solution Overview
Problem
Current 5G and 6G sidelink communication protocols are complex and require high-capability devices, making it difficult for low-complexity, reduced-capability devices such as IoT sensors and vehicles to communicate effectively without burdening base stations or interfering with high-performance users.
Innovation Solution
Implementing low-complexity sidelink procedures that allow user devices to form temporary local networks for direct communication using simplified protocols, such as sidelink hailing and semaphore messages, without base station involvement, enabling reduced-capability devices to join and communicate within these networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex protocols are enforced to achieve high performance, low latency, high reliability, and high throughput, then communication performance is improved, but device complexity increases and reduces accessibility for low-complexity devices
Solution Approach 1:
The patent segments the communication protocol into two distinct modes: complex protocols for high-performance communications and simplified protocols for low-complexity devices. This segmentation allows each device type to operate with appropriate protocol complexity without compromising overall system reliability.
Solution Approach 2:
Different quality levels of protocol complexity are applied locally to different device types. High-capability devices use complex protocols with high reliability, while reduced-capability devices use simplified protocols. This local differentiation resolves the contradiction by matching protocol complexity to device capabilities.
2Productivity
If rigid protocols and schedules are used for sidelink communications, then communication performance is improved, but adaptability for emergent applications decreases
Solution Approach 1:
The patent introduces dynamic protocol selection where devices can adaptively choose between rigid scheduled modes and flexible unscheduled modes based on application requirements. This dynamic adaptation allows the system to maintain high throughput when needed while providing versatility for emergent applications.
Solution Approach 2:
The communication system is designed to support multiple communication modes and application types through a single unified framework. The base station can serve both high-performance users with rigid protocols and low-complexity devices with flexible protocols, achieving universality across different use cases.
3Ease of operation
If simplified protocols are used for low-complexity devices, then device accessibility is improved, but communication performance deteriorates
Solution Approach 1:
The base station acts as an intermediary that mediates between simplified protocol users and the network. It provides protocol translation and management, allowing low-complexity devices to access the network without requiring high performance while maintaining basic communication reliability through base station coordination.
Solution Approach 2:
The patent creates simplified protocol copies that replicate the essential functionality of complex protocols but with reduced complexity. These simplified protocols maintain sufficient reliability for IoT applications while being accessible to low-complexity devices.
4Reliability
If base station involvement is required for all communications, then communication reliability is improved, but network load and latency increase
Solution Approach 1:
The patent extracts communication functionality from the base station for unscheduled mode operations. Reduced-capability devices can perform direct communications without base station involvement, removing the bottleneck and reducing latency while maintaining acceptable reliability through peer-to-peer protocols.
Data Source
AI summary
User devices can form a spontaneous temporary local network for communications in 5G and 6G, without involvement of a base station. However, each member user device in the local network must have an identification code different from the other member user devices, so that they can communicate specifically with each other. Procedures are provided for each member user device to select an identification code different from the others, and for a newly arriving user device to select its own identification code different from the existing members, and for each member user device to respond to unexpected conflicts between the identification codes of member user devices. Each member user device can thereby transmit messages, such as an emergency collision-avoidance message, to a specific other member device when needed.