Multi-Beam L3 Measurement for Faster 5G Beam Sweeping
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Solution Overview
Problem
Existing wireless communication systems, particularly 5G NR, face challenges in optimizing beam management and beam sweeping processes, leading to inefficiencies in network performance and user equipment (UE) connectivity.
Innovation Solution
Implementing simultaneous multi-beam reception and deactivation mechanisms at both the user equipment (UE) and network node levels, with fallback thresholds for efficient beam sweeping, allowing for dynamic adjustments based on network conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If traditional sequential beam sweeping is used, then device complexity is reduced, but measurement time and latency increase
Solution Approach 1:
The patent implements dynamic beam management where the network node and UE adaptively switch between single-beam and multi-beam reception modes based on service requirements and channel conditions. The network node configures the UE with multiple TCI states and dynamically activates appropriate beam reception modes, enabling flexible adaptation between sequential and simultaneous beam processing to optimize both time efficiency and complexity management.
Solution Approach 2:
The patent segments the beam sweeping process into multiple independent TCI states, each representing a separate beam direction or configuration. The network node configures multiple TCI states with different spatial parameters, allowing the UE to process multiple beams in parallel when needed, thereby reducing overall measurement time while maintaining manageable complexity through structured organization of beam resources.
2Measurement precision
If simultaneous multi-beam reception is implemented, then measurement precision and speed improve, but device complexity increases
Solution Approach 1:
The patent implements feedback mechanisms where the UE reports measurement results and capability information to the network node, which then adjusts the configuration of TCI states and beam reception parameters accordingly. This feedback loop enables the system to optimize measurement precision by adapting the number and configuration of simultaneous beams based on actual channel conditions and UE capabilities, thereby managing complexity dynamically rather than statically.
Solution Approach 2:
The patent utilizes parameter changes in TCI state configurations to control the complexity of simultaneous multi-beam reception. The network node adjusts parameters such as the number of active TCI states, spatial filtering parameters, and resource allocation based on service requirements, allowing the system to achieve high measurement precision when needed while reducing complexity during normal operation through parameter optimization.
3Productivity
If fast beam sweeping with multiple TCI states is used, then productivity increases, but energy consumption increases
Solution Approach 1:
The patent implements periodic beam sweeping and measurement procedures where the UE alternates between active measurement phases and idle phases. During periodic beam sweeping, the UE activates multiple TCI states for simultaneous beam processing to enhance productivity. Between these periodic activities, the UE can enter lower-power states, thereby managing energy consumption while maintaining high beam management efficiency when measurements are required.
Solution Approach 2:
The patent applies partial action by activating only the necessary number of TCI states based on current service requirements rather than maintaining all possible beam configurations continuously. The network node configures multiple TCI states but the UE activates only a subset needed for current operations, achieving high productivity when needed while conserving energy during normal operation by avoiding excessive beam processing activity.
Data Source
AI summary
Apparatus, methods, and computer program products for wireless communication are provided. An example method may include transmitting, to a network node, an indication to perform a simultaneous multi-beam reception from a network layer for a beam sweeping. The example method may further include receiving, from the network node, at least one fallback threshold for a deactivation associated with the simultaneous multi-beam reception. The example method may further include performing the simultaneous multi-beam reception from the network layer for the beam sweeping.