SRS Transmission Timing via Dynamic Parameter Joint Encoding
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Solution Overview
Problem
Current wireless communication systems face challenges in determining the optimal time for User Equipment (UE) to transmit a Sounding Reference Signal (SRS) based on configuration information received from the base station, leading to inefficiencies in signaling overhead and flexibility.
Innovation Solution
The method involves the UE determining the slot and symbol for SRS transmission by processing SRS resource configuration information and downlink control information, using parameters such as k0, k1, k2, and ΔDL or ΔUL to calculate the timing, allowing for flexible SRS transmission without relying on period or offset-based configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If period or offset-based configurations are used for SRS transmission timing, then the configuration is simple, but the flexibility of SRS transmission is limited
Solution Approach 1:
The patent changes the parameters used for SRS transmission timing from fixed period/offset values to dynamic parameters (k0, k1, k2, and ΔDL/ΔUL) that are derived from actual downlink and uplink slot assignments. This allows the SRS transmission time to adapt flexibly to different TDD configurations and traffic patterns while maintaining a relatively simple configuration approach through joint encoding.
2Loss of information
If separate configuration information is sent for start symbol, quantity of symbols, and repetition factor, then the configuration is detailed and precise, but the signaling overhead increases
Solution Approach 1:
The patent merges the configuration of start symbol, quantity of symbols, and repetition factor into a single jointly encoded parameter set. This combination reduces signaling overhead by transmitting these parameters together in one Downlink Control Information (DCI) message rather than through multiple separate configurations, while still maintaining the ability to precisely control each individual parameter through the joint encoding scheme.
Data Source
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AI summary
This application relates to the field of wireless communications technologies, and in particular, to a sounding reference information SRS transmission method, to resolve a problem of when to transmit an SRS. In the method, user equipment UE receives SRS resource configuration information sent by a base station. The UE receives downlink control information DCI sent by the base station. The UE sends an SRS in a determined slot and symbol, where the determined symbol is determined by the UE based on the SRS resource configuration information.