Wireless Communication RRM States from WUR/RLM for Lower Energy
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Solution Overview
Problem
The challenge of reducing energy consumption in RRM measurement within the New Radio (NR) system has become more critical with the evolution of NR technology, as existing methods using a wake-up receiver (WUR) do not accurately measure reference signals, affecting mobility management.
Innovation Solution
A wireless communication method that determines an RRM measurement state based on a WUR signal or RLM result to reduce the need for periodic activation of the primary receiver, thereby minimizing energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the primary receiver is periodically activated to perform RRM measurement, then measurement accuracy is improved, but energy consumption increases
Solution Approach 1:
The patent applies periodic action by using discontinuous reception (DRX) cycles to control when the primary receiver is activated for RRM measurement. The terminal only activates the primary receiver during specific measurement occasions defined by DRX parameters, rather than continuously or at every possible measurement opportunity. This periodic activation pattern reduces energy consumption while maintaining measurement accuracy through strategic timing of receiver activation.
Solution Approach 2:
The patent uses preliminary action by performing RRM measurements during idle periods or using previously stored measurement results to determine whether full RRM measurement is needed. The terminal can assess basic signal conditions using low-power receivers before deciding to activate the primary receiver for comprehensive RRM measurement, thereby avoiding unnecessary high-power activations while maintaining measurement accuracy when needed.
2Reliability
If the primary receiver is frequently activated for RRM measurement, then mobility management accuracy is improved, but device complexity increases
Solution Approach 1:
The patent applies dynamics by making the receiver activation behavior adaptive based on current channel conditions, mobility state, and network configuration. The terminal dynamically adjusts its RRM measurement strategy according to DRX cycle lengths, measurement configuration parameters, and observed signal quality trends. This dynamic approach maintains mobility management accuracy while optimizing the complexity of activation control through context-aware decision-making rather than fixed rigid patterns.
Data Source
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AI summary
Provided in the embodiments of the present application are a wireless communication method and device. A first communication device can determine an RRM measurement state according to a WUR signal or an RLM result, such that the number of RRM measurements to be performed by a primary receiver of the first communication device on a serving cell can be reduced, thereby reducing energy consumption for RRM measurements. The wireless communication method comprises: a first communication device determining an RRM measurement state according to first information, wherein the first information is one of the following: a WUR signal and an RLM result.