Rate Matching Pattern Bitmap Segmentation for Wireless Signal Decoding
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently receiving and transmitting downlink signals, particularly in managing rate matching patterns for base stations and user equipment, which affects the reliability and latency of communication services.
Innovation Solution
A method involving the transmission and reception of rate matching pattern information, including bitmaps indicating frequency and time resource regions, to decode and perform rate matching on downlink shared channels, ensuring efficient downlink signal processing and transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If rate matching pattern information is transmitted using multiple bitmaps (frequency, time, and time unit bitmaps), then the precision of rate matching resource indication is improved, but the signaling overhead and system complexity increase
Solution Approach 1:
The rate matching pattern information is segmented into multiple bitmaps: a frequency resource bitmap indicating frequency regions, a time resource bitmap indicating time regions, and a third bitmap indicating specific time units within the repetition period. This segmentation allows precise indication of rate matching resources across frequency, time, and time unit dimensions while maintaining organized and manageable signaling structure.
Solution Approach 2:
The patent introduces a third dimension (time units within repetition period) in addition to the traditional frequency and time resource indications. By adding this temporal dimension at the sub-unit level within the repetition period, the system achieves more granular and precise rate matching resource allocation without sacrificing the structured approach to signaling.
2Reliability
If rate matching is performed on resources indicated by multiple bitmaps, then the accuracy of downlink signal decoding is improved, but the processing time and computational complexity increase
Solution Approach 1:
The base station pre-configures and transmits the rate matching pattern information including all necessary bitmap data to the terminal before downlink signal reception. The terminal stores and prepares this rate matching configuration in advance, so that when downlink signals are received, the terminal can immediately apply the pre-prepared rate matching patterns without performing complex real-time analysis, thus reducing processing time while maintaining high decoding accuracy.
3Adaptability or versatility
If rate matching pattern information is configured for specific time units within a repetition period, then the flexibility of resource allocation is improved, but the configuration complexity and signaling overhead increase
Solution Approach 1:
The patent enables dynamic rate matching configuration by allowing the third bitmap to indicate specific time units within the repetition period where rate matching patterns are applied. This dynamic approach allows the system to adaptively allocate resources on a fine-grained time unit basis, providing high flexibility for different service requirements while using systematic bitmap representation to keep configuration management organized and efficient.
Data Source
AI summary
According to one embodiment of the present invention, a method of decoding, by a user equipment, a downlink signal in a wireless communication system comprises the steps of: receiving rate matching pattern information indicating a rate matching resource having a repetition period from a base station; and decoding a downlink shared channel using the rate matching pattern information.