Decoupled UL/DL Beam Management for Throughput and Power
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communications systems, the uplink and downlink beams are often selected based on the same physical path, leading to suboptimal performance due to limitations in transmit power and inefficient beam selection, which can result in reduced throughput and increased power consumption.
Innovation Solution
The technique allows the user equipment (UE) to report different uplink and downlink beam qualities independently, enabling the network entity to adjust its beam selection for improved throughput and power management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If uplink and downlink beams are selected based on the same physical path, then beam selection is simplified, but throughput is reduced and power consumption increases
Solution Approach 1:
The patent segments the beam selection process into independent uplink and downlink components. Instead of selecting beams as a single coupled pair, the system independently selects uplink beams and downlink beams based on separate criteria (uplink signal quality and downlink signal quality respectively), allowing each link to be optimized without constraint from the other.
Solution Approach 2:
The patent changes the selection parameters from a coupled physical path criterion to separate uplink and downlink signal quality parameters. The network entity selects beams based on independent measurement of uplink signal quality (e.g., uplink reference signal received power) and downlink signal quality (e.g., downlink reference signal received power), enabling different beams to be selected for each direction.
2Device complexity
If uplink and downlink beams are selected based on the same physical path, then beam management is simplified, but power consumption increases
Solution Approach 1:
The patent segments the beam management process into independent uplink and downlink beam selection processes. Each process uses separate measurement and selection criteria, allowing the system to avoid the power inefficiency of using suboptimal beams that would result from coupled selection based on the same physical path.
Solution Approach 2:
The patent changes the selection parameters to independent uplink and downlink signal quality metrics. By measuring and selecting beams based on separate parameters (uplink reference signal received power and downlink reference signal received power), the system optimizes power efficiency for each transmission direction without increasing overall management complexity.
3Device complexity
If uplink and downlink beams are selected based on the same physical path, then beam selection is simplified, but communication reliability is reduced
Solution Approach 1:
The patent segments beam selection into independent uplink and downlink processes, allowing each to be optimized for its specific requirements. This independent selection enables the system to achieve better communication reliability by choosing beams that are optimal for each direction rather than being constrained by a single physical path assumption.
Solution Approach 2:
The patent changes the selection criteria to independent uplink and downlink signal quality parameters. This allows the system to select beams that maximize communication reliability for each direction by using separate measurement and selection processes, rather than relying on the same physical path for both uplink and downlink.
Data Source
AI summary
Certain aspects of the present disclosure provide techniques for decoupled downlink (DL) and uplink (UL) beam management. In an exemplary method, a user equipment obtains an indication to report beam quality of an uplink (UL) beam and a downlink (DL) beam that are decoupled and reports a beam quality of at least one of the UL beam or the DL beam according to the indication.