UE Beam Class Determination for RRM Measurement
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Solution Overview
Problem
Current methods lack defined measurement requirements for radio resource management (RRM) in next-generation mobile communication systems, particularly in consideration of the number of receiving beams used by user equipment (UE), and there is no conventional method for a base station to ascertain the number of receiving beams used by a UE, especially when multiple beams are employed for measurement and data reception.
Innovation Solution
A method is introduced where the UE determines a beam class based on the number of receiving beams supported and transmits UE capability information to the serving cell, allowing for measurement requirements to be set accordingly, including different measurement periods and beam configurations for measurement and data reception, and adjusting these configurations based on mobility and power saving modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a UE uses multiple receiving beams for measurement and data reception, then measurement accuracy and transmission performance are improved, but measurement time and system complexity increase
Solution Approach 1:
The patent segments the beam configuration by dividing receiving beams into different beam classes (first beam class and second beam class) based on the number of beams used for measurement versus data reception. This allows the system to apply different measurement requirements and time parameters to different beam configurations, resolving the contradiction between using multiple beams for accuracy and the resulting measurement time increase.
Solution Approach 2:
The patent introduces dynamic adjustment mechanisms where the UE can change the number of receiving beams based on mobility detection and power saving modes. The measurement requirements and time parameters are dynamically adjusted according to the current beam configuration, allowing the system to optimize between measurement accuracy and measurement time based on real-time conditions.
2Productivity
If a UE uses different numbers of receiving beams for measurement and data reception, then resource utilization is optimized, but measurement requirement definition becomes complex
Solution Approach 1:
The patent applies segmentation by creating distinct beam classes (first beam class for measurement, second beam class for data reception) with different numbers of receiving beams. This allows the system to optimize resource utilization by using fewer beams for measurement when appropriate while maintaining the ability to use more beams for data reception, without creating excessive complexity in measurement requirement definitions.
Solution Approach 2:
The patent uses parameter changes by defining different measurement requirements (such as measurement period, cell identification time) corresponding to different beam classes. This allows the system to manage complexity by establishing clear parameter mappings between beam configurations and measurement requirements, making it easier to handle the scenario of using different numbers of beams for different purposes.
3Reliability
If the number of receiving beams is increased, then transmission performance is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic adjustment where the UE can change the number of receiving beams based on detected mobility conditions and power saving modes. When mobility is low or power saving is needed, the system can reduce the number of beams used. When transmission performance is critical and mobility is high, the system can increase the number of beams, thus dynamically balancing between reliability and power consumption.
Solution Approach 2:
The patent applies parameter changes by establishing different beam configurations (number of receiving beams) corresponding to different operational modes and mobility conditions. This allows the system to optimize power consumption by selecting appropriate beam parameters based on current conditions while maintaining the ability to achieve high transmission performance when needed.
Data Source
AI summary
The present specification discloses a method for performing measurement by a user equipment (UE). The method may include determining a first beam class from among a plurality of beam classes based on a number of receiving beams supported by the UE, transmitting UE capability information including information about the first beam class to a serving cell, and performing measurement on a downlink signal based on measurement requirement related to the first beam class.