PUCCH Transmission Structure Adaptation for 5G NR
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Solution Overview
Problem
The existing PUCCH transmission methods are inadequate for the new wireless communication systems, such as 5G NR, as they do not support the variable number of resource symbols occupied by the PUCCH, leading to inefficiencies in adapting to different communication requirements.
Innovation Solution
A PUCCH transmission method that determines the number of symbols occupied by the PUCCH and selects a corresponding structure from a set of predefined structures, allowing for flexible symbol allocation and frequency hopping to accommodate varying communication demands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed PUCCH structure is used as in LTE, then the transmission can be directly realized with a unique structure, but the system cannot adapt to new wireless communication requirements with variable symbol numbers
Solution Approach 1:
The PUCCH structure is segmented into multiple formats (Format 1, Format 2, Format 3, Format 4) with different symbol allocations and resource configurations. Each format handles specific payload sizes and transmission scenarios, allowing the system to adapt to varying requirements without requiring a completely new structure for each case.
Solution Approach 2:
The patent introduces dynamic PUCCH resource allocation where the number of symbols (1, 2, or 4 symbols) and frequency hopping configurations can be dynamically selected based on channel conditions, payload size, and mobility requirements. This dynamic adaptation enables the system to optimize performance for different scenarios while maintaining a unified framework.
2Adaptability or versatility
If the number of resource symbols is fixed as in LTE, then the PUCCH transmission can be straightforwardly implemented, but the system cannot support variable symbol requirements in new wireless communication systems
Solution Approach 1:
The patent changes key parameters including the number of PUCCH symbols (1, 2, or 4), subcarrier spacing (15 or 30 kHz), and frequency hopping patterns based on transmission requirements. These parameter variations allow flexible adaptation to different service types, payload sizes, and channel conditions while maintaining systematic control through higher-layer configuration.
3Productivity
If a unified PUCCH structure is used for all scenarios, then the implementation is simplified, but the system cannot efficiently handle different movement speeds and communication requirements
Solution Approach 1:
The patent creates a universal PUCCH framework that can handle multiple functions through a single set of principles: supporting both small and large payloads, accommodating different mobility scenarios, enabling frequency hopping for diversity, and working with various subcarrier spacings. This multi-functional design improves communication efficiency across diverse scenarios while avoiding the need for completely separate structures for each case.
Data Source
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AI summary
Provided in the embodiments of the present application are a physical uplink control channel (PUCCH) transmission method, user equipment and a device, used to solve the technical problem in an existing technology wherein no related method or device supports PUCCH transmission in a new wireless communication system. The PUCCH transmission method comprises: determining the number A of symbols occupied by a PUCCH, the number A being a positive integer; determining a PUCCH structure set that is configured in correspondence to the number A of the symbols, a PUCCH structure comprised in the PUCCH structure set comprising A symbol bits, the PUCCH structure set comprising one or more PUCCH structures, and the number of symbol bits used for transmitting pilot frequency information RS in different PUCCH structures being different when multiple PUCCH structures are comprised, wherein a PUCCH structure is a distribution rule for symbol bits used for transmitting uplink control information (UCI) and symbol bits used for transmitting RS; and determining a PUCCH structure corresponding to the PUCCH from the PUCCH structure set, and performing PUCCH transmission on the basis of the corresponding PUCCH structure.