Radio Link Monitoring Parameters for Beam Failure in Energy Saving Modes
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Solution Overview
Problem
Wireless communications systems face inefficiencies and inaccuracies in radio link monitoring (RLM) and beam failure detection when network entities operate in energy saving modes, leading to increased probabilities of beam failure and reduced communication reliability.
Innovation Solution
User equipment (UE) adjusts RLM and beam failure detection parameters based on the network entity's energy saving mode, using different parameter sets for each mode, including timer and threshold parameters, to maintain effective communication reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the network entity operates in energy saving modes, then power consumption is reduced, but the efficiency and accuracy of RLM operation decrease
Solution Approach 1:
The patent implements dynamic adjustment of RLM parameters based on the network entity's energy saving mode. The UE receives indications of energy saving modes and corresponding parameter sets, then adapts its RLM operation accordingly. This dynamic adaptation allows the system to maintain reliable RLM operation while the network entity operates in power-saving modes, resolving the contradiction between energy conservation and monitoring reliability.
Solution Approach 2:
The patent changes RLM parameters (such as measurement thresholds, monitoring frequencies, and detection criteria) based on the energy saving mode of the network entity. By adjusting these parameters dynamically, the system compensates for the reduced monitoring capability in power-saving modes, thereby maintaining RLM efficiency and accuracy while enabling energy conservation.
2Adaptability or versatility
If the network entity switches between multiple energy saving modes, then adaptability is improved, but beam failure detection accuracy decreases
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple parameter sets corresponding to different energy saving modes. The UE receives and stores these parameter sets in advance, so when the network entity switches modes, the UE can immediately apply the appropriate pre-configured parameters without delay or calculation overhead, thereby maintaining detection accuracy during mode transitions.
Solution Approach 2:
The patent implements feedback mechanisms where the UE monitors the network entity's energy saving mode status and adjusts RLM parameters accordingly. This closed-loop feedback ensures that the correct parameters are applied for each mode, maintaining beam failure detection accuracy despite the network entity's adaptability to switch between modes.
Data Source
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AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a first message indicating that a network entity, in wireless communication with the UE, is operating in a first energy saving mode of multiple energy saving modes. The UE may receive information indicating multiple sets of parameters for a radio link monitoring (RLM) operation, each of the sets of parameters being associated with a different energy saving mode. The UE may perform the RLM operation using one or more parameters of a first set of parameters (e.g., a maximum beam failure instance count parameter, one or more threshold parameters, and other parameters) associated with the first energy saving mode. The may use a second set of parameters to perform the RLM operation in response to the network entity switching from operating in the first energy saving mode to operating in the second energy saving mode.