UE Triggered Beam Management Report Configuration
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing beam switching and channel quality reporting in next-generation networks, particularly in scenarios where user equipment (UE) needs to trigger reports based on complex conditions related to reference signal received power (RSRP) and transmission configuration indicators (TCI) states, which can lead to suboptimal network decisions and increased signaling complexity.
Innovation Solution
The implementation of a method where User Equipment (UE) receives configurations to trigger reports based on specific conditions, such as improved RSRP of candidate beams compared to the current beam, and transmits these reports to a network node, allowing for proactive beam management and resource optimization, leveraging downlink TCI states and reference signals for informed decision-making.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If UE triggers reports based on complex conditions involving RSRP measurements and TCI states, then beam management accuracy is improved, but signaling complexity increases
Solution Approach 1:
The patent segments the beam management process by separating the triggering condition configuration from the actual report transmission. The network configures specific triggering conditions (such as RSRP thresholds, TCI state changes) that the UE evaluates independently, allowing complex beam management decisions to be made through structured, modular condition checks rather than continuous complex signaling.
Solution Approach 2:
The network performs preliminary action by pre-configuring the UE with triggering conditions before the UE needs to make beam management decisions. These pre-configured conditions include RSRP thresholds, TCI state identifiers, and reporting parameters, enabling the UE to autonomously evaluate and trigger reports without real-time network intervention, thus reducing signaling complexity while maintaining accuracy.
2Reliability
If UE continuously monitors and reports beam quality metrics, then network decision accuracy is improved, but signaling overhead increases
Solution Approach 1:
The patent implements feedback mechanisms where the UE monitors beam quality metrics (RSRP, TCI states) and provides feedback reports to the network only when predefined triggering conditions are met. This selective feedback approach ensures the network receives accurate, relevant information for decision-making while avoiding the signaling overhead of continuous reporting, as the UE autonomously determines when reporting is necessary based on condition evaluations.
Data Source
AI summary
Methods, systems, and apparatuses are provided for transmitting User Equipment (UE) triggered reports in a wireless communication system, comprising receiving a configuration of at least one condition to trigger a report by a UE, wherein the report is an L1 report or a Medium Access Control (MAC) Control Element (CE), receiving a downlink signal indicating at least one joint or Downlink (DL) Transmission Configuration Indicator (TCI) state, wherein the at least one joint or DL TCI state is associated with a first Reference Signal (RS), and triggering the report based on a first condition of the at least one condition being fulfilled, wherein: the first condition includes that: an L1-Reference Signal Received Power (RSRP) of one or more candidate beams is with an offset better than an L1-RSRP of a current beam, or a number of instances, that the L1-RSRP of the one or more candidate beams is with the offset better than the L1-RSRP of the current beam, exceeds or reaches a maximum number, and the UE determines the L1-RSRP of the current beam based on measurement of the first RS and determines the L1-RSRP of the one or more candidate beams based on measurement of one or more candidate RSs.