Beam R/D Mode Feedback for Wireless Signal Management
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in determining optimal beam repetition and diversity modes due to infrequent beam management reports, leading to limited knowledge of signal characteristics and interference variations, which affects communication quality and reliability.
Innovation Solution
User equipment (UE) measures signal characteristics of beam reference signals to determine beam repetition and diversity modes, reporting these to the base station with channel quality information and operating parameters, enabling more accurate and timely decisions on beam management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If beam management reports are sent infrequently to reduce overhead, then device complexity and signaling overhead are reduced, but measurement precision and reliability of beam selection deteriorate due to limited knowledge of signal characteristics and interference variations
Solution Approach 1:
The patent implements a feedback mechanism where the UE measures signal characteristics (RSRP, SINR) of beam reference signals and reports beam R/D mode indications to the base station. This feedback loop enables the base station to maintain accurate knowledge of signal characteristics and interference variations without requiring frequent comprehensive beam management reports, thus resolving the contradiction between reporting overhead and measurement precision.
Solution Approach 2:
The patent changes the parameter being reported from comprehensive beam management information to specific beam R/D mode indications based on measured signal characteristics. By reporting only the essential parameter (beam R/D mode) rather than all beam parameters, the system reduces reporting overhead while maintaining sufficient measurement precision for beam selection decisions.
2Reliability
If comprehensive beam management reports are sent frequently to improve beam selection accuracy, then measurement precision and reliability are improved, but signaling overhead and network resource consumption increase
Solution Approach 1:
The patent establishes a targeted feedback mechanism where the UE specifically measures and reports beam R/D mode indications based on signal characteristics such as RSRP and SINR. This focused feedback approach maintains beam selection reliability by providing essential information about signal quality and interference conditions without the need for comprehensive frequent reporting of all beam parameters, thus reducing signaling overhead.
Solution Approach 2:
The patent extracts only the essential information needed for beam selection reliability (beam R/D mode indications based on RSRP and SINR measurements) from the full set of beam management parameters. By reporting only this extracted essential information rather than complete beam management reports, the system maintains reliability while significantly reducing signaling overhead and network resource consumption.
3Manufacturing precision
If the UE reports detailed channel quality information and operating parameters for all beams, then beam management accuracy is improved, but information processing complexity and feedback overhead increase
Solution Approach 1:
The patent changes what information is reported from detailed channel quality parameters for all beams to condensed beam R/D mode indications. By transforming the reported parameter from comprehensive channel quality data to essential beam mode indications (which implicitly contain the necessary information about signal characteristics and interference), the system maintains beam management accuracy while improving feedback information efficiency and reducing overhead.
Data Source
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AI summary
A user equipment (UE) may measure signal characteristics of a beam reference signal and determine, based on the measured signal characteristics, a beam repetition and diversity (R/D) mode to be used in communications between the UE and a base station. In some examples, UE feedback to the base station may include an indication of the determined beam R/D mode, as well as channel quality information associated with one or more beams to which the determined beam R/D mode is to be applied and/or operating parameters (e.g., a mixed beam repetition and diversity pattern) associated with the beam R/D mode.