Sounding Reference Signal Cyclic Shift Configuration for Wireless Collision Avoidance
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently transmitting and receiving sounding reference signals (SRS) and uplink control information (UCI) without collision, particularly in scenarios where SRS and PUCCH transmissions overlap, leading to potential drops in data transmission quality.
Innovation Solution
A method is introduced where the cyclic shift (CS) value and hopping pattern for SRS are configured based on CS relation information, allowing for overlapping SRS and PUCCH transmissions by adjusting CS values and sequence lengths, ensuring simultaneous transmission without collision, even when SRS and PUCCH collide in the same resource.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If SRS and PUCCH transmissions are allowed to overlap in the same resource, then resource utilization efficiency is improved, but signal collision and transmission reliability deteriorate
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting cyclic shift values and sequence lengths for SRS and PUCCH signals. When overlap is detected, the system modifies these parameters to generate different signal patterns, allowing both signals to coexist in the same time-frequency resources without collision, thus maintaining both high resource utilization and transmission reliability
Solution Approach 2:
The invention implements dynamic parameter adjustment based on real-time detection of signal overlap. The cyclic shift and sequence length are not fixed but adaptively changed according to the transmission conditions and overlap scenarios, enabling the system to optimize resource utilization while preventing signal collision dynamically
2Reliability
If cyclic shift values are configured differently for SRS and PUCCH, then signal collision is avoided, but system complexity increases
Solution Approach 1:
The patent configures cyclic shift values and sequence lengths as adjustable parameters that can be differentiated between SRS and PUCCH transmissions. By changing these parameters based on signal type and overlap conditions, the system achieves reliable collision avoidance while maintaining manageable configuration complexity through standardized parameter sets
Solution Approach 2:
The system performs preliminary configuration of cyclic shift values and sequence lengths before actual transmission. By pre-configuring these parameters based on expected transmission scenarios and potential overlaps, the system avoids signal collision without requiring complex real-time decision-making, thus reducing operational complexity
Data Source
AI summary
The present invention provides a method for transmitting or receiving a sounding reference signal in a wireless communication system and an apparatus therefor. Specifically, a method for transmitting a sounding reference signal (SRS) by a terminal in a wireless communication system may comprise the steps of: receiving, from a base station, configuration information for transmission of the SRS, wherein the configuration information includes one or more SRS resources for transmission of the SRS, a cyclic shift (CS) hopping pattern for the SRS, and CS relation information about whether CS hopping patterns of the SRS and a PUCCH are related; and transmitting the SRS to the base station, through at least one SRS resource among the one or more SRS resources, wherein a CS value applied to the SRS is configured on the basis of the CS hopping pattern for the SRS and the CS relation information.