Relayed Sidelink Channel Restrictions for Logical Priority Control
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Solution Overview
Problem
Existing wireless communication systems face challenges in managing logical channel prioritization (LCP) restrictions for relayed sidelink communications, particularly in scenarios involving multiple devices with varying communication priorities and coverage areas, leading to inefficiencies in resource allocation and communication delays.
Innovation Solution
Implementing methods and apparatuses that enable devices to receive and transmit LCP restrictions based on the identity of communicating devices, allowing for differentiated logical channel priorities, carrier restrictions, and transport block size associations to optimize communication links, thereby enhancing communication efficiency and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If LCP restrictions are applied based on device identity in relayed sidelink communications, then communication efficiency and reliability are improved, but system complexity and configuration overhead increase
Solution Approach 1:
The patent applies different LCP restriction configurations to different devices based on their identities. Each remote device receives customized LCP restrictions from the relay device, allowing tailored resource allocation and priority management specific to each device's communication needs and coverage conditions, rather than applying uniform restrictions system-wide
Solution Approach 2:
The relay device receives LCP restriction configurations from the network in advance and stores them locally. When a remote device needs communication, the relay device retrieves and applies the appropriate pre-configured restrictions based on the remote device's identity, avoiding real-time computation and reducing signaling overhead during actual communication
2Productivity
If differentiated LCP restrictions are implemented for multiple devices, then resource allocation efficiency is improved, but configuration and management overhead increases
Solution Approach 1:
The patent segments the LCP restriction configuration into device-specific portions. Each remote device is assigned its own LCP restriction profile identified by a unique device identity, allowing the system to manage multiple devices with different requirements through modular, independently configurable units rather than a monolithic configuration system
Solution Approach 2:
The relay device serves as an intermediary between the network and multiple remote devices. It receives master LCP restriction configurations from the network, processes them into device-specific restrictions using remote device identities as keys, and distributes the appropriate configurations to each remote device, thereby simplifying the overall configuration management architecture
3Reliability
If carrier restrictions and transport block size associations are implemented, then communication reliability is improved, but processing complexity and computational overhead increase
Solution Approach 1:
The network pre-configures carrier restrictions and transport block size associations with specific LCP restrictions during system setup. These associations are stored in the relay device's memory before operation, allowing the relay device to directly retrieve and apply them during communication without performing complex real-time calculations or decisions about carrier selection and block sizing
Solution Approach 2:
The patent changes the operational parameters (carrier frequency, transport block size) based on pre-established associations with LCP restriction profiles. When a specific LCP restriction is applied to a remote device, the corresponding carrier and transport block parameters are automatically selected from the pre-configured associations, reducing the complexity of real-time parameter optimization
Data Source
AI summary
Methods, systems, and devices for wireless communications are described to support relayed sidelink communications. A first device and a base station may communicate via a communication link including a sidelink link between the first device and a second device and a relay link between the second device and the base station. The base station may determine restrictions for the communication link and transmit an indication of the restrictions over the relay link. The restrictions may differentiate data originating from the first device and the second device, restrict the first device to one or more resources, or associate logical channels at the first device with one or more transport block sizes and communication links. The second device may relay the indication of the restrictions to the first device. The first device, the second device, and the base station may communicate over the communication link according to the restrictions.