Method and device for configuring communication channel using sidelink in wireless communication between nodes
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Solution Overview
Problem
The existing NR V2X system faces challenges in efficiently configuring the Physical Sidelink Feedback Channel (PSFCH) due to the increased need for carrying more information bits, leading to complexity and inefficiencies in resource allocation and signaling overhead.
Innovation Solution
A method is introduced to establish an association between the format of a first-type channel and its associated frequency bandwidth or parameter, allowing for more flexible configuration and multiplexing of feedback information on sidelink, reducing signaling overhead, and enabling terminals to autonomously trigger configuration information sets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the PSFCH is designed to carry more information bits in future Rel-17 release, then the feedback information capacity is improved, but the design complexity of the PSFCH increases
Solution Approach 1:
The patent segments the PSFCH configuration into multiple parameters including frequency bandwidth, time domain resources, and format types. By dividing the feedback channel configuration into manageable segments, the system can support more information bits through coordinated adjustment of these segments rather than increasing overall complexity in a monolithic structure
Solution Approach 2:
The patent introduces dynamic configuration mechanisms where the PSFCH format, frequency bandwidth, and time domain resources can be flexibly adjusted based on traffic conditions and feedback requirements. This dynamic approach allows the system to scale information bits capacity up or down as needed without permanently increasing design complexity
2Adaptability or versatility
If the PSFCH configuration is made more flexible to meet diverse application requirements, then the adaptability is improved, but the signaling overhead increases
Solution Approach 1:
The patent employs parameter changes by defining a set of configurable parameters for PSFCH including frequency bandwidth, time domain resources, and format types. By changing these parameters based on application requirements rather than redesigning the entire channel structure, the system achieves flexibility while minimizing signaling overhead through targeted parameter adjustments
Solution Approach 2:
The patent creates a universal PSFCH configuration framework that can serve multiple application scenarios (V2X, IoT, mobile broadband) through a single set of configurable parameters. This multi-functional design allows the same basic channel structure to adapt to different requirements without requiring separate specialized configurations for each application type
Data Source
AI summary
The present disclosure provides a method and device in nodes used for wireless communications. A first node first receives a first signaling, and then receives a second signaling in a first time-frequency resource set; the first signaling is used to indicate the first time-frequency resource set, and the second signaling occupies the first time-frequency resource set; the second signaling is used to configure a format of a first-type channel, the format of the first-type channel is related to a frequency bandwidth corresponding to a second-type channel associated with the first-type channel, or the format of the first-type channel is related to a first parameter of the first-type channel; the first signaling is a physical layer signaling. The present disclosure optimizes the configuration method of feedback channel on sidelink to improve the efficiency of spectrum on sidelink and the overall performance of the system.