D2D Communication Subframe Control Overhead Reduction
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Solution Overview
Problem
In traditional device-to-device communication systems, the overhead for transmitting control information is burdensome due to it being carried in separate subframes from data, which can lead to inefficiencies in resource allocation and communication efficiency.
Innovation Solution
Carrying control information and data in the same subframe, where control information indicates resource block allocations for data transmission, reducing the need for separate subframe transmissions and minimizing overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If control information and data are carried in separate subframes, then control information can be transmitted reliably, but control overhead increases and resource allocation efficiency deteriorates
Solution Approach 1:
The patent merges control information and data into the same subframe for transmission. Specifically, control information indicating resource block allocations is carried together with data in a single subframe, eliminating the need for separate control subframes and reducing overhead while maintaining transmission reliability through proper resource allocation
2Ease of operation
If control information is carried in separate subframes, then resource allocation can be managed separately, but communication efficiency deteriorates due to increased overhead
Solution Approach 1:
The patent combines control information and data transmission in the same subframe, reducing the number of subframes required and minimizing overhead. This merging approach improves communication efficiency while resource allocation is still managed through the control information contained within the combined transmission
3Productivity
If control information and data are transmitted in the same subframe, then overhead is reduced and communication efficiency improves, but resource allocation complexity increases
Solution Approach 1:
The patent segments the subframe into specific resource blocks, with certain resource blocks allocated for control information and others for data within the same subframe. This segmentation approach allows efficient resource allocation through clear demarcation while maintaining the benefit of combined transmission and reduced overhead
Data Source
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Figure 2A~2D
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AI summary
In one aspect of this disclosure, control information and data are carried in the same subframe in order to reduce control overhead. A method, an apparatus, and a computer-readable medium for wireless communication are provided. The apparatus may be a first UE. The first UE determines a data block to be transmitted to a second UE. The first UE determines a first resource in a subframe for carrying the data block and determines a second resource in the subframe for carrying control information associated with transmitting the data block. The first UE transmits the data block and the control information to the second UE in a device-to-device communication channel on the determined first and second resources, respectively.