Wireless Device Beamformed Link Compatibility Management

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Solution Overview

Problem

Existing wireless communication networks face challenges in dynamically managing beamformed communication links due to static compatibility determinations based on limited factors, which do not account for varying propagation conditions and device capabilities, leading to inefficiencies in link activation and deactivation.

Innovation Solution

The wireless device and network node implement mechanisms to determine compatibility states of beamformed communication links based on current radio signal characteristics, allowing for dynamic de-activation and re-activation of links in response to changing propagation conditions and device capabilities, enabling adaptive management of beam-pair links.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If beamformed communication links are managed with static compatibility determinations based on limited factors, then device complexity is reduced and ease of operation is improved, but adaptability to varying propagation conditions and device capabilities deteriorates

Engineering Contradiction:
Improveadaptability to propagation conditionsVSAvoidcomplexity of compatibility determination
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements dynamic compatibility determination for beamformed communication links by continuously monitoring radio signal characteristics (RSRP, RSRQ, SINR) and device capability states. The compatibility state is not fixed but dynamically updated based on current propagation conditions and device capabilities, allowing the system to adapt to changing environments while maintaining manageable complexity through automated monitoring and evaluation procedures.

Inventive Principle:
Principle #15Dynamics

2Productivity

If beamformed communication links are managed with static compatibility determinations, then ease of operation is improved, but network performance deteriorates due to inefficiencies in link activation and deactivation

Engineering Contradiction:
Improveefficiency of link managementVSAvoidease of link management
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The patent employs feedback mechanisms where the wireless device continuously monitors radio signal characteristics and device capability states for each beamformed communication link. This feedback information is used to dynamically evaluate compatibility states and trigger appropriate actions (activation, deactivation, or maintenance of links). The feedback loop ensures efficient link management by automatically responding to changing conditions without requiring manual intervention, thus improving productivity while maintaining ease of operation.

Inventive Principle:
Principle #23Feedback

3Adaptability or versatility

If dynamic compatibility determination based on current radio signal characteristics is implemented, then adaptability to propagation conditions is improved, but use of energy increases due to continuous monitoring and evaluation

Engineering Contradiction:
Improvereal-time adaptation capabilityVSAvoidenergy consumption of wireless device
Core Design Contradiction:
Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The patent implements periodic monitoring and evaluation of radio signal characteristics and device capability states for beamformed communication links. Instead of continuous real-time monitoring, the system performs compatibility determinations at periodic intervals or triggered by specific events (such as changes in propagation conditions or device state). This periodic approach maintains real-time adaptability while significantly reducing energy consumption compared to continuous monitoring, as the wireless device can enter low-power states between evaluation periods.

Inventive Principle:
Principle #19Periodic action

Data Source

PatentEP3577782B1A wireless device, a network node and methods therein for handling beamformed communication links in a wireless communications network
Publication Date: 2023.05.17 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
  • EP3577782B1 patent drawingFigure 1
  • EP3577782B1 patent drawingFigure 2~3
  • EP3577782B1 patent drawingFigure 4~5

AI summary

A method performed by a wireless device (121) for handling two or more beamformed communication links (23-1; 25-2; 25-3; 25-4; 27-2) initialized with one or more network nodes (110) in a wireless communications network (100) is provided. The wireless device (121) determines at least one compatibility state for the two or more beamformed communication links (23-1; 25-2; 25-3; 25-4; 27-2) based on one or more current radio signal characteristics at the wireless device (121) for the two or more beamformed communication links (23-1; 25-2; 25-3; 25-4; 27-2), wherein the at least one compatibility state indicates if the wireless device (121) currently is able to simultaneously receive transmission beams of the two or more beamformed communication links (23-1; 25-2; 25- 3; 25-4; 27-2) from the one or more network nodes (110) or not. Then, the wireless device (121) transmits information indicating the at least one determined compatibility state for the two or more beamformed communication links (23-1; 25-2; 25-3; 25-4; 27-2) to at least one of the one or more network nodes (110). A wireless device (121) for handling two or more beamformed communication links (23-1; 25-2; 25-3; 25-4; 27-2) initialized with one or more network nodes (110) in a wireless communications network (100) is also provided. Furthermore, a network node (111) and a method performed therein for handling two or more beamformed communication links (23-1; 25-2; 25-3; 25-4; 27-2) initialized with a wireless device (121) in a wireless communications network (100) are also provided.