Antenna Switching via SRS Indication in Wireless Terminals
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Solution Overview
Problem
Current wireless communication systems face challenges in dynamically switching antenna configurations without reconfiguring Radio Resource Control (RRC) or changing bandwidth parts (BWP), leading to inflexibility and complexity, especially when adapting to varying business requirements or scenarios that demand changes in antenna switching capabilities.
Innovation Solution
The method involves a network device sending indication information to a terminal device to activate a target SRS resource configuration, allowing the terminal device to switch to a corresponding antenna switching configuration on the current BWP without RRC reconfiguration or BWP changes, using sounding reference signal (SRS) resource configurations to determine the appropriate antenna settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If RRC reconfiguration or BWP changes are used to switch antenna configurations, then the antenna switching capability can be changed, but the system flexibility is reduced and complexity increases
Solution Approach 1:
The patent extracts the antenna switching configuration indication from the complex RRC reconfiguration procedure and BWP change mechanisms. By using dedicated indication information (such as SRS resource configuration indicators) to convey antenna switching settings, the system separates the antenna configuration control from the broader RRC and BWP management, thereby reducing overall system complexity while maintaining adaptability.
Solution Approach 2:
The patent introduces an intermediary mechanism - the SRS (Sounding Reference Signal) resource configuration - that acts as a mediator between the network device and terminal device for antenna switching control. This intermediary carries the antenna switching indication independently, avoiding the need for full RRC reconfiguration or BWP changes, thus reducing complexity while preserving switching capability.
2Adaptability or versatility
If RRC reconfiguration or BWP changes are used to switch antenna configurations, then the antenna switching capability can be changed, but the switching process becomes less flexible
Solution Approach 1:
The patent extracts antenna switching control from the rigid RRC reconfiguration and BWP change procedures. By using independent indication information (such as SRS resource configuration indicators), the system enables flexible antenna switching without being constrained by the heavier RRC or BWP change mechanisms, thereby improving ease of operation while maintaining adaptability.
Solution Approach 2:
The patent introduces dynamic antenna switching capability where the terminal device can switch between different antenna configurations (e.g., 1T1R, 1T2R, 2T2R, 2T4R) based on real-time indication information from the network device. This dynamic control mechanism allows flexible adaptation to varying business requirements without the inflexibility of fixed RRC or BWP configurations.
3Adaptability or versatility
If multiple antenna switching configurations are supported, then adaptability to different scenarios is improved, but the complexity of managing configurations increases
Solution Approach 1:
The patent makes the SRS resource configuration mechanism universal for multiple antenna switching scenarios. The same indication information structure and SRS-based mechanism are used across different antenna configurations (1T1R, 1T2R, 2T2R, 2T4R, etc.), providing a unified approach that reduces configuration management complexity while maintaining support for diverse scenarios.
Solution Approach 2:
The patent manages multiple antenna configurations by changing parameters within a unified framework. The network device controls the terminal device to switch between different antenna configurations by modifying the SRS resource configuration parameters and related indication information, rather than managing entirely separate configuration sets for each scenario, thereby reducing overall complexity.
Data Source
AI summary
A Method for switching an antenna switching configuration, includes: according to a target antenna switching configuration to which a terminal device is to switch on a current bandwidth part (BWP), a network device sending to the terminal device indication information for activating a corresponding target sounding reference signal (SRS) resource configuration, so that after receiving the indication information of the target SRS configuration, which is sent by the network device, the terminal device switches to the corresponding target antenna switching configuration on the current BWP according to the indication information of the target SRS configuration.