Antenna Switching via SRS Resource Groups for Multi-Rx Terminals
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Solution Overview
Problem
Existing communication systems struggle to support antenna switching configurations for terminal devices with more than four receiving antennas, limiting their ability to obtain optimal channel information and beamforming gains.
Innovation Solution
A method and system for configuring Sounding Reference Signal (SRS) resource set groups to support antenna switching configurations for terminal devices with more than four receiving antennas, enabling efficient channel information acquisition and improved beamforming.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal device increases the number of receiving antennas to improve downlink receiving capability, then the receiving performance is improved, but the existing antenna switching configuration cannot support devices with more than four receiving antennas
Solution Approach 1:
The patent divides the SRS resource sets into multiple groups, where each group corresponds to a specific antenna switching configuration. This segmentation allows the system to support multiple receiving antenna configurations (including more than four) by organizing resources in a structured manner that can accommodate different antenna counts, thereby resolving the contradiction between improved receiving capability and configuration support.
2Measurement precision
If the terminal device uses more receiving antennas (y>4), then the channel information acquisition capability is improved, but there is no suitable configuration mode to support antenna switching
Solution Approach 1:
The patent introduces dynamic antenna switching configuration where the terminal can switch between different SRS resource set groups based on the actual number of receiving antennas. This dynamic approach allows the system to adapt to different antenna configurations (including y>4) without requiring separate static configuration modes for each antenna count, thereby improving channel information acquisition while managing configuration complexity.
Solution Approach 2:
The patent creates a universal antenna switching configuration framework where a single configuration mechanism can support multiple receiving antenna scenarios (including more than four antennas). By designing SRS resource set groups that can accommodate different antenna counts, the system achieves multi-functionality, allowing the same configuration mode to serve various terminal devices with different antenna configurations, thus improving measurement precision without proportionally increasing device complexity.
Data Source
AI summary
Embodiments of the present disclosure relate to an antenna switching method, a terminal device and a communication device. The method comprises: a first terminal device receives a configuration message; the configuration message indicates M sounding reference signal (SRS) resource set groups, each SRS resource set group contains at least one SRS resource set, and M is a positive integer; each SRS resource set group corresponds to a corresponding antenna switching configuration, and the antenna switching configuration supports the first terminal device to have more than four receiving antennas. Embodiments of the present disclosure can achieve antenna switching for a terminal device having many (e.g., more than four) receiving antennas.