SRS Antenna Switching Interruption Reduction via UE Indication
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current network technologies face challenges in reducing interruption lengths for Sounding Reference Signal (SRS) antenna switching, as the transient periods for UE antenna switching are not known to the base station, leading to large interruption periods with no uplink and downlink transmissions.
Innovation Solution
The implementation of Radio Resource Management (RRM) enhancements allows the UE to determine specific symbols for antenna switching during SRS transmissions and communicate these through an indication message to the base station, enabling the base station to refrain from transmitting during these periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the base station uses large interruption periods to anticipate UE SRS antenna switching, then the base station can avoid transmission conflicts during antenna switching, but the interruption length increases and network efficiency decreases
Solution Approach 1:
The UE performs preliminary action by determining and indicating the antenna switching symbols in advance to the base station through an indication message. This allows the base station to know beforehand when antenna switching occurs and schedule transmissions accordingly, avoiding conflicts while minimizing interruption time.
Solution Approach 2:
The UE provides feedback to the base station by transmitting an indication message that contains information about the antenna switching symbols. This feedback mechanism enables the base station to adjust its transmission schedule based on actual UE antenna switching timing, resolving the contradiction between reliability and time loss.
2Productivity
If the base station schedules transmissions without knowing UE antenna switching timing, then the network operation is simple, but transmission conflicts occur and network efficiency decreases
Solution Approach 1:
The UE performs self-service by autonomously determining its antenna switching timing and proactively indicating this information to the base station. This eliminates the need for complex base station scheduling algorithms while improving network efficiency by avoiding transmission conflicts.
Solution Approach 2:
The indication message acts as an intermediary between the UE and base station, carrying information about antenna switching symbols. This intermediary mechanism simplifies base station scheduling by providing direct information about transmission constraints, improving network efficiency without adding complex scheduling logic.
3Loss of time
If the UE indicates antenna switching symbols to the base station, then the base station can precisely schedule transmissions and reduce interruption, but the UE complexity increases
Solution Approach 1:
The indication message segments the antenna switching information into specific symbols that need to be indicated to the base station. This segmentation allows the UE to provide precise timing information with minimal processing complexity, reducing interruption time without significantly increasing UE complexity.
Solution Approach 2:
The UE changes the parameter of transmission scheduling by providing specific symbol-level information about antenna switching. This parameter change enables precise scheduling and reduces interruption time while the UE complexity increase is minimal since it involves basic timing indication rather than complex coordination.
Data Source
AI summary
Some aspects of this disclosure relate to apparatuses and methods for implementing mechanisms for reducing interruption lengths for Sounding Reference Signal (SRS) antenna switching. For example, some aspects of this disclosure relate to a user equipment (UE) configured to determine one or more symbols during which the UE is configured to perform an antenna switch for a Sounding Reference Signal (SRS) transmission. The UE is further configured to generate an indication message including an indication of the one or more symbols and transmit, using the transceiver, the indication message to the base station.