Aperiodic SRS Resource Configuration for Antenna Switching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communication systems, the transmission of aperiodic SRSs for antenna switching is hindered by the requirement of a guard interval, limiting the ability to transmit multiple aperiodic SRSs within a slot, as they can only be transmitted on the last six symbols of each slot.
Innovation Solution
Configuring two aperiodic SRS resource sets for terminals to enable the transmission of aperiodic SRSs across different slots, allowing for the completion of antenna switching operations by associating each SRS resource with a different antenna port and utilizing higher layer parameters for triggering and configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a guard interval of at least one symbol is reserved between aperiodic SRSs for antenna switching, then transmission reliability is improved, but the quantity of SRS transmissions within a slot decreases
Solution Approach 1:
The patent divides the aperiodic SRS resource set into multiple subsets, where each subset can be independently triggered. This segmentation allows multiple SRS transmissions to be scheduled across different slots by distributing them across different subsets, thereby increasing the total quantity of SRS transmissions while maintaining the required guard intervals within each subset.
2Object-affected harmful factors
If aperiodic SRSs are transmitted only on the last six symbols of each slot, then interference with other signals is reduced, but the ability to complete multiple SRS transmissions within a slot is lost
Solution Approach 1:
The patent introduces a new dimension for resource allocation by utilizing multiple slots for SRS transmissions. Instead of attempting to fit all transmissions within a single slot's last six symbols, the solution distributes transmissions across multiple slots, effectively adding the time dimension of slot allocation to resolve the conflict between avoiding interference and achieving transmission completeness.
3Productivity
If multiple aperiodic SRS transmissions are attempted within a single slot, then transmission efficiency is improved, but guard interval requirements cannot be satisfied
Solution Approach 1:
The patent performs preliminary configuration of multiple aperiodic SRS resource subsets with pre-defined transmission parameters and timing relationships. By pre-configuring the resource allocation across multiple slots and subsets, the system ensures that guard intervals are automatically satisfied while enabling efficient multi-transmission operations, thus resolving the conflict between transmission efficiency and guard interval compliance.
Data Source
Figure 1~3
Figure 4~5
Figure 6~7
AI summary
Disclosed in the present invention are a processing method and apparatus based on an uplink signal, a network device, a terminal, and a storage medium. The method comprises: a network device configures two non-periodic sounding reference signal (SRS) resource sets for a terminal for antenna switching.