Dynamic SRS Port Switching for Flexible Resource Allocation
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Solution Overview
Problem
The inflexible allocation of SRS resources in wireless communication systems leads to low utilization efficiency due to limited resources and varying user requirements, affecting channel estimation and throughput.
Innovation Solution
A communication method where terminals dynamically report their updated SRS transmit port switching modes and capabilities to base stations, allowing for dynamic adjustment of SRS resources based on changing conditions such as battery power, temperature, and antenna status, enhancing flexibility and utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the sending periodicity of SRS is increased, then the SRS resource is sufficient for allocation to each user, but the signal-to-noise ratio of the SRS becomes weaker and channel estimation quality deteriorates
Solution Approach 1:
The patent implements dynamic SRS resource allocation where the base station adjusts the sending periodicity and resource allocation based on real-time channel conditions, user requirements, and base station load. This allows the system to adapt between longer periodicity (when resources are sufficient) and shorter periodicity (when channel estimation quality needs improvement), resolving the contradiction between resource sufficiency and estimation quality.
Solution Approach 2:
The system changes key parameters including SRS sending periodicity, resource allocation quantity, and bandwidth part configurations dynamically. By adjusting these parameters based on reported terminal capabilities and current network conditions, the system optimizes both resource utilization and channel estimation quality under different scenarios.
2Device complexity
If one-time allocation of SRS resources is performed during user access, then the allocation process is simple, but the SRS resource usage flexibility and utilization are poor
Solution Approach 1:
The patent implements a feedback mechanism where terminals report their SRS capabilities (including antenna switching capabilities, supported periodicities, and bandwidth part information) to the base station. The base station uses this feedback information to dynamically adjust SRS resource allocation, enabling flexible adaptation to different terminal capabilities and network conditions while maintaining manageable complexity through standardized reporting procedures.
Solution Approach 2:
The system transitions from static one-time allocation to dynamic continuous allocation. The base station continuously monitors terminal capabilities and network conditions, adjusting SRS resource allocation in real-time to match changing requirements, thereby significantly improving resource usage flexibility without excessive complexity increase.
Data Source
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AI summary
Embodiments of this application disclose a communication method, a communication apparatus, and a network device. The communication method includes: A terminal sends first indication information to a network device, where the first indication information indicates an updated SRS transmit port switching mode supported by the terminal, and the updated SRS transmit port switching mode supported by the terminal includes at least one antenna switching capability; and the terminal receives antenna switching type SRS resource configuration information from the network device. According to embodiments of this application, SRS resource allocation flexibility and SRS resource utilization can be improved.