Adaptive PUCCH Symbol Structures for Reliable Uplink Control
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently transmitting and receiving physical uplink control channels, particularly in next-generation systems requiring enhanced mobile broadband, massive machine type communications, and ultra-reliable low latency communications, where the physical uplink control channel is transmitted and received through a variable number of symbols.
Innovation Solution
A method for configuring a physical uplink control channel (PUCCH) that allows transmission and reception using an appropriate structure based on the size of the uplink control channel, including one-symbol and multi-symbol PUCCH structures, to ensure stable communication, especially for user equipment at the cell boundary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the physical uplink control channel is transmitted through a fixed single symbol structure, then the device complexity is reduced, but the communication capacity and reliability deteriorate for next-generation services
Solution Approach 1:
The patent applies dynamics by enabling the PUCCH structure to adaptively change between one-symbol and multi-symbol configurations based on the size of uplink control information and service requirements. This dynamic adaptation allows the system to optimize communication capacity for different service types (eMBB, MTC, URLLC) while maintaining manageable device complexity through standardized adaptation rules.
2Reliability
If the physical uplink control channel uses a variable number of symbols, then the communication capacity and reliability are improved, but the device complexity increases
Solution Approach 1:
The patent applies parameter changes by modifying the PUCCH structure parameters (number of symbols, resource allocation) based on the size of uplink control information and service type. This allows the system to improve communication reliability for critical services like URLLC and eMBB while managing device complexity through parameter adaptation rather than structural redesign.
3Loss of time
If the PUCCH is transmitted through multiple symbols, then the latency is reduced for time-sensitive services, but the device complexity and resource management difficulty increase
Solution Approach 1:
The patent applies segmentation by dividing the PUCCH transmission into configurable symbol segments (one-symbol or multi-symbol structures). This segmentation allows the system to reduce latency for time-sensitive services by using multi-symbol configurations when needed, while managing resource management complexity through standardized segmentation rules that simplify scheduling and allocation.
Data Source
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AI summary
Disclosed are a method for transmitting and receiving a physical uplink control channel between a terminal and a base station in a wireless communication system, and an apparatus for supporting the same. More particularly, disclosed are a method for transmitting and receiving a physical uplink control channel through a plurality of channels between a terminal and a base station in a wireless communication system supporting transmission and reception of a physical uplink control channel through a single symbol, and an apparatus for supporting the same.