DMRS and SRS Bandwidth Part Mapping for High-Speed Wireless
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in transmitting and receiving control information, particularly in high-speed user equipment scenarios where channel stability is compromised.
Innovation Solution
The method involves configuring demodulation reference signals (DMRS) and sounding reference signals (SRS) using Zadoff-Chu sequences and orthogonal cover codes, allowing for efficient multiplexing and transmission across different bandwidths within the same frequency band, enabling effective channel estimation and control information transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If control information is transmitted in high-speed user equipment scenarios, then communication service is provided, but channel stability deteriorates
Solution Approach 1:
The patent changes the parameter of reference signal configuration by introducing a second bandwidth different from the first bandwidth, and adjusting the mapping pattern of demodulation reference signals based on bandwidth part indicators. This parameter adjustment allows the system to adapt to high-speed scenarios while maintaining channel estimation accuracy despite channel instability.
2Productivity
If demodulation reference signals are configured across different bandwidths, then control information transmission efficiency is improved, but signal mapping complexity increases
Solution Approach 1:
The patent segments the bandwidth into multiple bandwidth parts (first bandwidth and second bandwidth) with different demodulation reference signal configurations. By dividing the overall bandwidth into manageable segments with distinct mapping patterns, the system achieves efficient control information transmission while the segmentation itself provides a structured approach that manages rather than exacerbates complexity.
Solution Approach 2:
The patent creates a universal mapping pattern configuration that can be applied across different bandwidth parts. The same base mapping pattern structure is used for both first and second bandwidths, with adjustments made through bandwidth part indicators. This multi-functional approach allows efficient control information transmission across varying bandwidths while reusing fundamental mapping principles.
Data Source
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AI summary
The present invention relates to a wireless communication system, and specifically, to a method and a device for the method which comprises the steps of: receiving resource allocation information for transmitting uplink data; generating a data demodulation reference signal (DMRS) sequence; and transmitting the data and the DMRS sequence on a frequency band indicated by the resource allocation information, wherein the frequency band comprises frequency resource units, and the DMRS sequence is generated for each frequency resource unit.