PUCCH Multiplexing for SR and HARQ-ACK Priority Handling
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently performing wireless signal transmission and reception procedures, particularly in next-generation technologies like 3GPP NR, which require enhanced mobile broadband communication, massive MTC, and Ultra-Reliable and Low Latency Communication (URLLC).
Innovation Solution
The method and apparatus optimize signal transmission and reception processes in wireless communication systems, specifically in 3GPP NR, by configuring and managing physical channels such as PDCCH, PDSCH, PUCCH, and PUSCH to enhance efficiency and reliability, including techniques for multiplexing control information and handling various access technologies like CDMA, FDMA, TDMA, OFDMA, and SC-FDMA.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple physical channels (PDCCH, PDSCH, PUCCH, PUSCH) are configured and managed for enhanced mobile broadband and URLLC, then communication capacity and reliability are improved, but device complexity and signal processing overhead increase
Solution Approach 1:
The patent segments the wireless communication system into distinct physical channels (PDCCH for downlink control, PDSCH for downlink data, PUCCH for uplink control, PUSCH for uplink data) with specific functions. This segmentation allows reliable transmission by dedicating specific resources to control and data planes, while managing complexity through modular channel design where each channel has standardized processing procedures.
Solution Approach 2:
The patent implements dynamic resource allocation and channel management where physical channels are configured, activated, and adapted based on traffic requirements, channel conditions, and service types (eMBB vs. URLLC). This dynamic approach enables the system to maintain high reliability for critical URLLC traffic while efficiently utilizing resources for eMBB, preventing permanent complexity buildup.
2Productivity
If signal transmission and reception procedures are optimized for next-generation technologies, then communication capacity increases, but processing time and system complexity increase
Solution Approach 1:
The patent employs preliminary configuration of physical channels and resource allocations where channel parameters, resource blocks, and transmission formats are pre-negotiated and configured during connection setup and scheduling phases. This preliminary action reduces real-time processing requirements during actual data transmission, enabling higher communication capacity without proportionally increasing processing time during critical data transfer operations.
3Adaptability or versatility
If physical channels are configured to support diverse access technologies (CDMA, FDMA, TDMA, OFDMA, SC-FDMA), then system adaptability improves, but device complexity and configuration overhead increase
Solution Approach 1:
The patent implements a universal physical channel framework where PDCCH, PDSCH, PUCCH, and PUSCH can operate across multiple access technologies (CDMA, FDMA, TDMA, OFDMA, SC-FDMA). The same channel structures and processing principles apply universally, with technology-specific parameters configured through standardized procedures. This multi-functionality approach enables diverse technology support without proportionally increasing device complexity, as the core channel management logic remains consistent across technologies.
Data Source
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AI summary
According to an embodiment of the present disclosure, a terminal generates and transmits a PUCCH signal for multiplexing first UCI for a scheduling request (SR) with second UCI for an HARQ-ACK on a specific time resource, wherein, on the basis that (i) the first UCI for the SR is related to a first PUCCH format, (ii) the HARQ-ACK does not exceed 2 bits; and (iii) the first UCI for the SR has the higher priority among a first priority and a second priority, the terminal can: determine a cyclic shift (CS) for the PUCCH signal; generate, on the basis of the determined CE and the first PUCCH format, the PUCCH signal for multiplexing the first UCI with the second UCI; and determine, on the basis of whether the SR is a positive SR, the PUCCH resource to which the PUCCH signal is to be mapped.