PUCCH Resource Allocation Using Offset-Aware Interference Mitigation
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Solution Overview
Problem
Existing wireless communication systems face challenges in improving the reception performance of Physical Uplink Control Channels (PUCCH) in 5G networks, particularly in managing interference among multiple terminals and optimizing resource allocation to enhance efficiency and coverage.
Innovation Solution
A method and device for improving PUCCH reception by determining environmental information such as timing and frequency offsets, and using orthogonal sequence (OS) and cyclic shift (CS) information for resource allocation, reducing interference and enhancing reception performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple terminals share the same PUCCH resources to increase resource efficiency, then resource utilization improves, but interference between terminals increases and reception performance deteriorates
Solution Approach 1:
The patent applies local quality by configuring different PUCCH resource parameters (such as cyclic shift values, orthogonal cover codes, or frequency offsets) for different terminals sharing the same physical resources. This allows each terminal to have customized local characteristics on the shared medium, enabling simultaneous transmission with reduced mutual interference while maintaining high resource utilization efficiency
Solution Approach 2:
The patent changes transmission parameters (cyclic shift, orthogonal cover code index, frequency offset) dynamically assigned to different terminals. By varying these parameters locally for each terminal rather than using identical parameters, the system achieves both high resource efficiency and acceptable reception performance through parameter differentiation
2Reliability
If PUCCH resources are allocated to enhance reception performance and reduce interference, then reception quality improves, but resource allocation complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple PUCCH resource sets with different parameter combinations before actual transmission. The base station and terminal prepare these resource options in advance, allowing quick selection of appropriate resources based on current channel conditions without complex real-time calculations, thus improving reception performance while limiting complexity growth
Solution Approach 2:
The patent introduces dynamics by making PUCCH resource allocation adaptive to channel conditions, terminal location, and interference levels. Resources are dynamically selected from pre-configured sets based on current system state, allowing the system to optimize reception performance under varying conditions without requiring complete reconfiguration, thereby managing complexity through structured adaptability
3Measurement precision
If timing and frequency offsets are corrected to improve reception performance, then signal quality improves, but processing overhead increases
Solution Approach 1:
The patent applies preliminary action by performing timing and frequency offset estimation and correction during initial access or uplink synchronization procedures. By addressing synchronization issues before PUCCH transmission begins, the system avoids repeated offset correction processing during actual control channel operations, reducing ongoing processing overhead while maintaining high synchronization accuracy
Solution Approach 2:
The patent uses feedback mechanisms where the base station measures uplink timing and frequency offsets from terminal transmissions and sends correction commands back to terminals. This closed-loop feedback approach maintains high synchronization accuracy through minimal periodic adjustments rather than continuous processing, optimizing the balance between precision and processing overhead
Data Source
AI summary
The disclosure relates to a communication technique for merging internet of things (IoT) technology with a 5th generation (5G) communication system for supporting a data transmission rate higher than that of a 4th generation (4G) system, and a system therefor. The disclosure is applied to intelligent service based on 5G communication technology and IoT-related technology. A method for enhancing physical uplink control channel (PUCCH) reception performance, and a device therefor are provided. The method includes receiving, from a terminal, a signal for determining environment information of the terminal, identifying the environment information of the terminal based on the signal, identifying resource allocation information for a physical uplink control channel (PUCCH) format 1 signal based on the environment information of the terminal, transmitting the resource allocation information to the terminal, and receiving the PUCCH format 1 signal from the terminal based on the resource allocation information.