Beam Correspondence Control for UE Power and Accuracy
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Solution Overview
Problem
In User Equipment (UE) during inactive modes, existing technologies face challenges in ensuring accurate beam correspondence for uplink transmission while conserving power, especially with longer Discontinuous Reception (DRX) cycles that may lead to sub-optimal antenna gain and increased power consumption.
Innovation Solution
The UE controls the lengths of monitoring cycles based on the range of the DRX cycle and power conditions to select an appropriate beam for transmission, with shorter DRX cycles having stricter beam correspondence requirements to ensure higher accuracy and transmit power, and longer cycles having more relaxed requirements to conserve power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If longer DRX cycles are used to conserve power, then power consumption is reduced, but beam correspondence accuracy deteriorates
Solution Approach 1:
The patent applies dynamics by making the beam correspondence requirements dynamic rather than static. The network device configures different beam correspondence accuracy requirements based on the DRX cycle length. When a longer DRX cycle is used for power conservation, the system dynamically adjusts to allow relaxed beam correspondence requirements. Conversely, when shorter DRX cycles are used, stricter beam correspondence requirements are applied. This dynamic adaptation resolves the contradiction by allowing the system to optimize for power consumption when using longer DRX cycles while maintaining beam correspondence accuracy when using shorter cycles.
2Measurement precision
If stricter beam correspondence requirements are applied to ensure higher accuracy, then beam correspondence accuracy is improved, but power consumption increases
Solution Approach 1:
The patent applies parameter changes by modifying the beam correspondence accuracy requirement parameter based on the DRX cycle configuration. The network device changes this parameter dynamically: when longer DRX cycles are configured (which consume less power), the beam correspondence accuracy requirement is relaxed. When shorter DRX cycles are configured (which consume more power), stricter beam correspondence accuracy requirements are applied. This parameter adjustment resolves the contradiction by allowing the system to achieve high beam correspondence accuracy only when necessary, thereby reducing overall power consumption.
3Measurement precision
If shorter DRX cycles are used to improve beam correspondence accuracy, then beam correspondence accuracy is improved, but power consumption increases
Solution Approach 1:
The patent applies dynamics by creating a dynamic relationship between DRX cycle length and beam correspondence requirements. Instead of using fixed strict requirements that would always increase power consumption, the system dynamically adjusts beam correspondence accuracy requirements based on the actual DRX cycle length being used. When shorter DRX cycles are used, the system applies stricter requirements to ensure accuracy. When longer DRX cycles are used for power saving, the requirements are relaxed. This dynamic approach resolves the contradiction by making beam correspondence accuracy improvement contingent on the power consumption level.
Solution Approach 2:
The patent applies parameter changes by modifying the beam correspondence accuracy requirement parameter in response to changes in DRX cycle length. The network device configures different parameter values for beam correspondence requirements based on whether short or long DRX cycles are used. This parameter adaptation allows the system to achieve high beam correspondence accuracy when shorter DRX cycles are necessary, while accepting relaxed requirements when longer cycles are used for power conservation, thereby resolving the contradiction between accuracy and power consumption.
Data Source
AI summary
A User Equipment (UE) configured to control lengths of one or more monitoring cycles of the UE based, at least in part on a range of a discontinuous reception (DRX) cycle and one or more power conditions of the UE. The monitoring cycle is used to select a beam for transmission by the UE. The DRX cycle is used by the UE during RRC_INACTIVE state and the range of the DRX cycle determines one or more beam correspondence conditions.