SRS Hopping Pattern Configuration for Wireless Channel Measurement
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently configuring and transmitting sounding reference signals (SRS) due to limitations in bandwidth allocation and hopping patterns, leading to suboptimal channel measurement accuracy and increased overhead.
Innovation Solution
A method for configuring time/frequency hopping of SRS by determining parameters such as full bandwidth, hopping unit bandwidth, and number of hopping units based on SRS bandwidth configuration information, allowing for complete SRS bandwidth utilization within one slot and reducing transmission complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional SRS hopping patterns are used with limited bandwidth allocation, then transmission overhead is reduced, but channel measurement accuracy deteriorates
Solution Approach 1:
The SRS bandwidth is divided into multiple hopping units, where each hopping unit occupies a portion of the total bandwidth. The UE hops through different hopping units across multiple symbols within a slot, enabling comprehensive bandwidth coverage for channel measurement while maintaining manageable transmission overhead through structured segmentation.
2Measurement precision
If SRS bandwidth is increased to improve measurement accuracy, then channel measurement accuracy improves, but transmission complexity increases
Solution Approach 1:
The SRS transmission employs dynamic frequency hopping within a slot, where the frequency location changes across different symbols according to a hopping pattern. This dynamic approach allows the system to utilize wide bandwidth for accurate channel measurement while managing transmission complexity through time-varying frequency allocation rather than static wideband transmission.
3Productivity
If SRS hopping is configured to cover full bandwidth, then bandwidth utilization improves, but configuration complexity increases
Solution Approach 1:
The system configures SRS hopping by defining three key parameters: total SRS bandwidth, bandwidth per hopping unit, and number of hopping units. By controlling these parameters, the system achieves complete bandwidth utilization through hopping while managing configuration complexity through a standardized parameter-based approach rather than arbitrary bandwidth allocation.
Data Source
AI summary
Disclosed are a method for transmitting and receiving a sounding reference signal (SRS) in a wireless communication system, and an apparatus therefor. Specifically, a method for a terminal to transmit an SRS in a wireless communication system comprises: a step of receiving, from a base station, SRS configuration information, wherein the SRS configuration information includes SRS bandwidth configuration information related to an SRS hopping pattern; and a step of determining, on the basis of the SRS bandwidth configuration information, a first parameter indicating the entire bandwidth allocated to the SRS, a second parameter indicating a bandwidth for hopping units of the SRS, and a third parameter indicating the number of hopping units of the SRS, and transmitting the SRS to the base station by applying the SRS hopping pattern configured on the basis of the first parameter, the second parameter, and the third parameter, wherein the value of the third parameter may be configured in association with the number of symbols constituting the SRS hopping pattern.