Adaptive Beam Weights for Dynamic Correspondence Control
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Solution Overview
Problem
Existing wireless communication systems face challenges in dynamically managing beam correspondence, leading to inefficiencies in beamforming schemes that affect uplink and downlink performance.
Innovation Solution
The system allows user equipment (UE) and network entities to flexibly determine when to maintain beam correspondence, enabling the UE to select beam weights for different beamforming schemes without maintaining beam correspondence, based on indicators such as traffic patterns and performance requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If beam correspondence is maintained for both uplink and downlink beams, then beamforming consistency is improved, but system flexibility and adaptability deteriorate
Solution Approach 1:
The patent introduces a beam correspondence mode indicator that can dynamically switch between indicating beam correspondence present mode and beam correspondence absent mode. This allows the system to adapt between maintaining beam correspondence and allowing independent beam selection based on traffic patterns, mobility conditions, and use case requirements, resolving the contradiction between stability and adaptability
2Adaptability or versatility
If separate beam weights are selected for uplink and downlink without beam correspondence, then beamforming flexibility is improved, but signaling overhead and latency increase
Solution Approach 1:
The system dynamically determines whether to perform separate uplink and downlink beam sweeping based on the beam correspondence mode indicator. When the indicator shows beam correspondence present mode, the system skips separate beam sweeping procedures, reducing time loss while still allowing flexibility when needed in absent mode
3Stability of the object's composition
If beam correspondence is always maintained, then uplink-downlink beam consistency is improved, but communication efficiency for specific traffic patterns deteriorates
Solution Approach 1:
The beam correspondence mode indicator enables dynamic adaptation to different traffic patterns, mobility conditions, and use cases. When high communication efficiency is needed for specific scenarios, the system can switch to beam correspondence absent mode with separate beam optimization, while maintaining consistency in scenarios where it benefits performance
Solution Approach 2:
The system changes the operational parameter of beam correspondence status based on communication conditions. By switching between present and absent modes, the system optimizes communication efficiency for different traffic patterns and scenarios while maintaining beam consistency when appropriate
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may communicate control signaling to a network entity comprising a time-varying beam correspondence indicator. In some examples, the network entity may transmit the time-varying correspondence indicator to the UE. In other examples, the UE may transmit the time-varying correspondence indicator to the network entity. The UE may select a first set of beam weight values for an uplink beam and a second set of beam weight values for a downlink beam based on the time-varying correspondence indicator. The UE may perform wireless communications with the network entity using the uplink beam according to the first set of beam weight values, the downlink beam according to the second set of beam weight values, or both.