Sidelink Channel Bandwidth Splitting for Lower-Cost Terminals
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Solution Overview
Problem
Current sidelink communication systems require terminal devices to support the same reception and transmission bandwidths, leading to high complexity and cost, necessitating a reduction in these bandwidths to address this issue.
Innovation Solution
The proposed solution involves configuring the terminal device to transmit or receive sidelink channels/signals with a frequency domain resource bandwidth that is less than or equal to the bandwidth for receiving radio frequency signals, utilizing a transceiver unit and processor to manage these bandwidths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If terminal devices support the same reception and transmission bandwidth in sidelink communication systems, then communication reliability is maintained, but device complexity and cost increase
Solution Approach 1:
The patent segments the bandwidth support into two distinct parts: reception bandwidth and transmission bandwidth. The terminal device can support a first bandwidth for receiving sidelink channels/signals and a second bandwidth for transmitting sidelink channels/signals, where these bandwidths can be different. This segmentation allows the device to optimize each bandwidth independently, reducing overall complexity while maintaining communication reliability.
Solution Approach 2:
The patent changes the bandwidth parameters by allowing the reception bandwidth and transmission bandwidth to be independently configured and optimized. Specifically, the terminal device can be configured with a first bandwidth for reception and a second bandwidth for transmission, where the second bandwidth can be smaller than the first bandwidth, thereby reducing device complexity and cost while maintaining adequate communication performance.
2Measurement precision
If terminal devices support the same reception and transmission bandwidth in sidelink communication systems, then signal quality is maintained, but device cost increases
Solution Approach 1:
The patent segments the bandwidth support into two distinct parts: reception bandwidth and transmission bandwidth. The terminal device can support a first bandwidth for receiving sidelink channels/signals and a second bandwidth for transmitting sidelink channels/signals, where these bandwidths can be different. This segmentation allows the device to optimize each bandwidth independently, reducing overall complexity while maintaining communication reliability.
Solution Approach 2:
The patent changes the bandwidth parameters by allowing the reception bandwidth and transmission bandwidth to be independently configured and optimized. Specifically, the terminal device can be configured with a first bandwidth for reception and a second bandwidth for transmission, where the second bandwidth can be smaller than the first bandwidth, thereby reducing device complexity and cost while maintaining adequate communication performance.
3Productivity
If terminal devices support the same reception and transmission bandwidth in sidelink communication systems, then communication performance is maintained, but power consumption increases
Solution Approach 1:
The patent introduces dynamic bandwidth configuration where the terminal device can adaptively adjust the transmission bandwidth based on actual communication needs. The device supports a first bandwidth for reception and can be configured with a second bandwidth for transmission that is optimized for specific scenarios, allowing flexible adaptation to different communication requirements and reducing unnecessary power consumption.
Solution Approach 2:
The patent changes the bandwidth parameters by allowing the reception bandwidth and transmission bandwidth to be independently configured and optimized. Specifically, the terminal device can be configured with a first bandwidth for reception and a second bandwidth for transmission, where the second bandwidth can be smaller than the first bandwidth, thereby reducing device complexity and cost while maintaining adequate communication performance.
Data Source
AI summary
The present application provides a sidelink communication method and apparatus. The method comprises: a terminal device sends or receives a first sidelink channel/signal, wherein bandwidth of a frequency domain resource occupied by the terminal device for sending or receiving the first sidelink channel/signal is a first bandwidth, the bandwidth of the terminal device receiving a radio frequency signal is a second bandwidth, the first bandwidth is greater than or equal to X, the second bandwidth is greater than or equal to Y, both X and Y are positive numbers, and X is less than or equal to Y.