D2D Control Information Transmission Resource Pool Merging
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Solution Overview
Problem
Current device-to-device (D2D) communication technologies face low reliability due to independent configuration of control information and scheduled data resources, leading to reduced detection success rates and increased transmission delays in intelligent transportation systems.
Innovation Solution
Configuring the time domain resource for control information as a subset of the scheduled data resource, allowing the receive end to detect both in the same resource pool, thereby improving detection success rates and reducing transmission delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If control information and scheduled data use separate resource pools with time division, then resource allocation is clear and simple, but detection reliability decreases and transmission delay increases
Solution Approach 1:
The patent merges control information and scheduled data into a single resource pool, allowing both to be detected together. This combining approach eliminates the need for separate resource pools while maintaining clear resource allocation through joint detection mechanisms, thereby improving detection reliability without excessive complexity
Solution Approach 2:
The single resource pool is designed to serve multiple functions: it can detect both control information and scheduled data simultaneously, and can adapt to different detection scenarios (joint detection vs. separate detection). This multi-functionality improves system reliability while managing complexity through unified resource management
2Measurement precision
If control information and scheduled data are detected in separate resource pools, then resource allocation is straightforward, but detection success rate decreases
Solution Approach 1:
By combining control information and scheduled data detection into a single resource pool, the patent enables simultaneous detection of both elements. This merging eliminates the sequential detection process required by separate resource pools, thereby reducing transmission delay and improving overall detection success rate
Solution Approach 2:
The patent performs preliminary configuration of the single resource pool to accommodate both control information and scheduled data detection. This advance preparation enables efficient joint detection operations, improving detection success rate while minimizing the time required for resource allocation and detection operations
Data Source
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AI summary
Embodiments of the present invention provide a control information transmission method, a transmit end, and a receive end. The method includes: determining, by the transmit end, a first time domain resource used for sending scheduled data and a second time domain resource used for sending control information of the scheduled data in a transmission period, where the second time domain resource is a subset of the first time domain resource; and sending, by the transmit end, the control information on the second time domain resource, where the control information includes a parameter used to instruct the receive end to receive the scheduled data. Using the present invention can improve a success rate of data detection, shorten a transmission delay, and further improve reliability of a communications system.