PUCCH Resource Identifier Determination for Multi-Transmission-Point DCI
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Solution Overview
Problem
Existing communication technologies face challenges in accurately determining the physical uplink control channel (PUCCH) resource identifier due to the use of multiple transmission points, leading to lower accuracy in communication-enhanced scenarios.
Innovation Solution
A method involving higher-layer configuration information and downlink control information (DCI) is used to determine a PUCCH resource identifier, incorporating techniques such as determining identifiers based on predefined methods, time-domain start positions, and CCE indices, and utilizing indication information to enhance accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple transmission points are used to send control information, then communication enhancement is achieved, but the accuracy of determining PUCCH resource identifier deteriorates
Solution Approach 1:
The patent segments the determination of PUCCH resource identifier into multiple independent components: higher-layer configuration information provides baseline parameters, while DCI from multiple transmission points provides dynamic adjustments. Each transmission point's DCI independently contributes to the final resource identifier through modular operations (addition, XOR, or selection based on indication information), allowing the system to maintain high determination accuracy despite using multiple transmission points for communication enhancement.
2Quantity of substance
If multiple transmission points are used, then communication capacity increases, but system complexity increases
Solution Approach 1:
The patent implements a universal determination mechanism that handles multiple transmission points through a unified framework. The terminal device uses a single set of rules to process DCI from any number of transmission points, selecting among three operations (addition, XOR, or indication-based selection) based on higher-layer configuration. This multi-functional approach allows the system to accommodate varying numbers of transmission points without requiring separate processing logic for each scenario, thereby managing system complexity while maintaining enhanced communication capacity.
Data Source
AI summary
A method for resource identifier determination and related apparatuses are provided. The method includes the following. Receive higher-layer configuration information. Determine a first transmission resource of a first transmission point and a second transmission resource of a second transmission point at least according to the higher-layer configuration information. Receive downlink control information (DCI) according to the first transmission resource and the second transmission resource. Determine a physical uplink control channel (PUCCH) resource identifier at least according to the higher-layer configuration information and the DCI.