PUCCH Multiplexing for V2X Control Information
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently performing sidelink communication between user equipment (UEs) and base stations, particularly in transmitting multiplexing information including hybrid automatic repeat request (HARQ) feedback, uplink positive scheduling requests, and sidelink positive scheduling requests, which are critical for next-generation radio access technologies like V2X communication.
Innovation Solution
A method and apparatus for transmitting multiplexing information, such as HARQ feedback, uplink positive scheduling requests, and sidelink positive scheduling requests, in a single slot through the physical uplink control channel (PUCCH) to a base station, utilizing a processor and transceiver to generate and control the transmission of these signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple control information (HARQ feedback, UL PSR, SL PSR) are transmitted separately through PUCCH, then transmission reliability is maintained, but transmission overhead increases and resource efficiency deteriorates
Solution Approach 1:
The patent combines multiple control information types (HARQ feedback, UL PSR, SL PSR) into a single PUCCH transmission. The base station configures multiple PUCCH resources, and the UE multiplexes different control information on these resources within the same slot, reducing the number of separate transmissions required and improving resource efficiency.
Solution Approach 2:
The PUCCH resource configuration is designed to handle multiple types of control information universally. The base station configures PUCCH resources that can accommodate HARQ feedback, UL PSR, and SL PSR, allowing a single PUCCH structure to serve multiple functions and reduce overall transmission overhead.
2Reliability
If control information is transmitted in multiple slots, then transmission reliability is improved, but latency increases and real-time performance deteriorates
Solution Approach 1:
The patent merges multiple control information transmissions that would traditionally occur in different slots into a single slot. By configuring multiple PUCCH resources within the same slot and multiplexing control information on these resources, the system achieves both reliability (through redundant transmission paths) and low latency (by completing all transmissions in one slot).
3Reliability
If separate PUCCH resources are allocated for each control information type, then transmission reliability is maintained, but resource utilization efficiency deteriorates
Solution Approach 1:
The base station configures PUCCH resources with multi-functionality, where the same PUCCH resource configuration can carry HARQ feedback, UL PSR, SL PSR, or combinations thereof. This universal resource allocation improves utilization efficiency while maintaining reliability through proper resource selection and multiplexing.
Solution Approach 2:
The system dynamically selects which PUCCH resources to use based on the specific control information that needs to be transmitted in each slot. This dynamic resource allocation optimizes resource utilization efficiency while ensuring that the appropriate control information is transmitted reliably.
Data Source
AI summary
According to one embodiment of the present disclosure, provided is a method for a first device to transmit a PUCCH to a base station. The method may comprise: a step for generating multiplexing information including at least one among HARQ feedback information for DL transmission, UL PSR for UL transmission, or SL PSR for SL transmission; and a step for transmitting the multiplexing information to the base station on a single slot through the PUCCH.