Sidelink Feedback Symbol Grouping for Time-Aligned PSFCH Indication
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Solution Overview
Problem
In sidelink communication, there is a need to improve feedback for reference signals and reduce communication complexity.
Innovation Solution
A method where a receiver transmits indication information for sidelink information on a physical sidelink feedback channel using groups of symbols that correspond to time units, allowing efficient transmission of sidelink synchronization signals and channel state information reference signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If indication information for sidelink information is transmitted on the physical sidelink feedback channel without structured symbol grouping, then feedback can be provided, but communication complexity increases and resource allocation becomes inefficient
Solution Approach 1:
The patent segments the physical sidelink feedback channel into multiple groups of symbols, where each group corresponds to a specific time unit for carrying sidelink information. This segmentation allows organized and structured feedback transmission, reducing communication complexity while maintaining reliability through dedicated symbol groups for each time unit's feedback.
Solution Approach 2:
The patent introduces a time unit dimension to organize feedback symbols, creating a two-dimensional structure where symbols are arranged both in time units and in groups within each time unit. This dimensional organization enables efficient resource allocation and reduces complexity by providing a systematic framework for feedback transmission.
2Adaptability or versatility
If multiple pieces of sidelink information are transmitted in multiple time units without corresponding feedback structures, then communication flexibility is improved, but feedback accuracy and beam management efficiency deteriorate
Solution Approach 1:
The patent segments feedback resources into multiple groups of symbols corresponding to multiple time units, enabling independent and organized feedback for each time unit's sidelink information. This segmentation maintains communication flexibility while improving feedback accuracy through dedicated, structured feedback resources for each transmission instance.
Solution Approach 2:
The patent assigns specific groups of symbols within each time unit for carrying indication information, creating local quality differentiation where different symbol groups serve different feedback purposes. This local organization improves measurement precision by ensuring accurate feedback for each specific time unit's sidelink information while maintaining overall system flexibility.
3Productivity
If indication information is transmitted without aligned symbol-time unit correspondence, then resource allocation is simpler, but information bearer capability and communication efficiency are reduced
Solution Approach 1:
The patent adds a structured grouping dimension within each time unit, organizing symbols into specific groups for carrying indication information. This creates a systematic two-dimensional resource allocation framework that improves communication efficiency through aligned correspondence while managing complexity through standardized resource organization.
Solution Approach 2:
The patent creates a universal resource allocation framework where groups of symbols within time units can consistently carry indication information for different types of sidelink information. This multi-functional structure improves communication efficiency by providing a standardized, reusable pattern for feedback transmission across multiple time units and information types.
Data Source
AI summary
This application provides a communication method and a related device, to enable, in a process of transmitting N pieces of sidelink information in N time units, a receiver of the sidelink information to transmit, in a PSFCH by using N groups of symbols that are in one-to-one correspondence with the N time units used to carry the N pieces of sidelink information, indication information indicating the sidelink information The first communication apparatus receives first indication information on a jth group of symbols in N groups of symbols. The first indication information indicates jth sidelink information, a value of j is 0 to N−1, the N time units are in one-to-one correspondence with the N groups of symbols, and the N groups of symbols are located in a PSFCH.