Dynamic Sidelink Resource Allocation Within Uplink Slots
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Solution Overview
Problem
Existing V2X communication systems do not configure sidelink resources for direct communication between terminal devices, limiting the efficiency and flexibility of vehicle-to-everything (V2X) communication.
Innovation Solution
A network device configures resources for uplink, downlink, and sidelink information transmission, and provides indication information to communication devices to facilitate sidelink communication, allowing reconfiguration of resources for uplink, downlink, and sidelink transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the access network device configures only uplink and downlink resources without sidelink resources, then the device complexity is reduced and resource management is simplified, but the adaptability and efficiency of V2X communication are limited
Solution Approach 1:
The network device configures a flexible resource pool that can be dynamically allocated for different purposes (uplink, downlink, or sidelink) based on communication needs. The indication information mechanism allows the same resource pool to serve multiple functions, enhancing adaptability without proportionally increasing complexity.
Solution Approach 2:
The patent implements dynamic resource allocation where the network device can adjust the purpose of resources through indication information. Resources are not statically assigned but can be reconfigured in real-time based on traffic demands, improving sidelink communication capability while maintaining manageable complexity through centralized control.
2Productivity
If dedicated sidelink resources are configured for terminal devices, then the efficiency and flexibility of sidelink communication are improved, but the resource management complexity and signaling overhead increase
Solution Approach 1:
The resource pool is segmented into multiple resources that can be independently indicated and allocated. The network device divides the resource pool and assigns specific resources to terminals through indication information, enabling efficient sidelink communication while managing complexity through structured resource division.
Solution Approach 2:
The network device acts as an intermediary that manages resource allocation between terminals. By centralizing resource management and using indication information as a mediator, the system achieves high sidelink efficiency without distributing complex management functions to individual terminals, thus controlling overall system complexity.
3Manufacturing precision
If the network device provides detailed indication information for resource allocation, then the precision of resource configuration is improved, but the signaling overhead and information transmission burden increase
Solution Approach 1:
The network device provides indication information only when resource allocation needs to be changed or specified, rather than continuously transmitting full resource configuration details. This partial action approach maintains configuration precision when needed while reducing signaling overhead during stable periods.
Solution Approach 2:
The indication information conveys essential parameters (resource pool index, resource offset, time-frequency location) that define resource allocation without transmitting complete configuration sets. By changing only necessary parameters rather than retransmitting full configurations, the system achieves precise resource specification with reduced signaling overhead.
Data Source
AI summary
A resource configuration method for sidelink information, a communication device, a network device, and a system the method including receiving first indication information from a network device, where the first indication information indicates a first, second, and third resource in one slot, where the first resource is used for transmitting uplink information, the second resource is used for transmitting downlink information, and the third resource is used for transmitting first information or not transmitting information, the first information comprising uplink information, downlink information, or sidelink information, receiving second indication information from the network device, the second indication information indicating a fourth resource belonging to the first resource, and being used for transmitting sidelink information to a second communication device, and sending a sidelink information to the second communication device on the fourth resource, the sidelink information including sidelink feedback information.