Dynamic Beam Correspondence State Reporting in 5G Wireless Networks

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Solution Overview

Problem

Current wireless communication systems, particularly in 5G and LTE networks, face challenges in efficiently managing beam correspondence between base stations and user equipment, leading to suboptimal beamforming and increased network bandwidth usage due to static reporting of beam correspondence states.

Innovation Solution

Implementing dynamic reporting of beam correspondence states, where user equipment (UE) can independently detect and transmit beam correspondence indications to base stations, allowing for event-triggered updates and selective use of beam sweeping procedures based on beam capabilities, reducing unnecessary reference signals and improving throughput.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If static reporting of beam correspondence states is used, then device complexity is reduced, but network bandwidth usage increases and communication efficiency deteriorates

Engineering Contradiction:

Improvebeam management complexityVSAvoidnetwork bandwidth usage

Core Design Contradiction:

Device complexityVSLoss of energy

Solution Approach 1:

The patent implements dynamic beam correspondence state reporting, where the UE transitions from static to dynamic reporting behavior. The system determines whether to report beam correspondence states based on detected triggering events (such as beam failures or configuration changes), allowing the reporting mechanism to adapt its behavior dynamically rather than following a fixed static pattern, thereby optimizing network bandwidth usage.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the reporting parameter from always-reporting (static) to event-triggered reporting (dynamic). By monitoring triggering events and only reporting when necessary, the system changes the operational parameter of beam correspondence state reporting from a continuous static mode to a conditional dynamic mode, reducing unnecessary network bandwidth consumption.

Inventive Principle:

Principle #35Parameter changes

2Loss of energy

If dynamic reporting with event-triggered updates is implemented, then network bandwidth usage is reduced, but device complexity increases

Engineering Contradiction:

Improvenetwork bandwidth usageVSAvoidbeam management complexity

Core Design Contradiction:

Loss of energyVSDevice complexity

Solution Approach 1:

The UE autonomously monitors for triggering events and independently determines when beam correspondence state reporting is necessary, without requiring continuous network control or configuration. This self-service approach allows the device to manage its own reporting behavior based on local conditions, reducing network overhead while the complexity is confined to the UE rather than the network infrastructure.

Inventive Principle:

Principle #25Self-service

3Measurement precision

If beam sweeping procedures are performed frequently, then beam management precision is improved, but productivity decreases due to increased overhead

Engineering Contradiction:

Improvebeam correspondence accuracyVSAvoidcommunication throughput

Core Design Contradiction:

Measurement precisionVSProductivity

Solution Approach 1:

Instead of continuous or frequent beam sweeping, the patent implements periodic beam sweeping triggered by specific events. The beam correspondence state is updated and reported only when triggering events occur (such as beam failures or configuration changes), converting continuous periodic action into event-driven periodic action, thereby maintaining measurement precision while reducing overhead and improving productivity.

Inventive Principle:

Principle #19Periodic action

4Productivity

If selective use of beam sweeping procedures is implemented, then productivity is improved, but measurement precision may deteriorate

Engineering Contradiction:

Improvecommunication throughputVSAvoidbeam correspondence accuracy

Core Design Contradiction:

ProductivityVSMeasurement precision

Solution Approach 1:

The system performs preliminary determination of beam correspondence states by monitoring triggering events before initiating beam sweeping procedures. By detecting events such as beam failures or configuration changes in advance, the system can selectively perform beam sweeping only when necessary, maintaining measurement precision while improving productivity through reduced unnecessary sweeping operations.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS11743781B2Systems and methods for reporting of beam correspondence state

Publication Date: 2023.08.29 QUALCOMM INC

AI summary

Certain aspects of the present disclosure provide techniques for reporting of a beam correspondence state. Certain aspects provide a method for wireless communication by a first wireless device. The method includes, based on detecting the occurrence of a triggering event, determining one or more beam correspondence states for one or more beams or portions of beams used by the first wireless device for communication. The method further includes transmitting one or more indications of the one or more beam correspondence states to a second wireless device, wherein the one or more indications of the one or more beam correspondence states indicate whether the first wireless device has the capability of beam correspondence between the one or more beams and corresponding one or more transmit or receive beams used by the first wireless device for communication.