Wireless Node Beam Overlap Detection and Activation Control

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Solution Overview

Problem

Existing methods for handling beamforming beams in wireless communications networks are inefficient due to the lack of knowledge about beam overlaps, leading to unnecessary signaling overhead, processing waste, and increased latency.

Innovation Solution

A method where a node in a wireless communications network detects overlapping beams by utilizing measurements from wireless devices, providing an indication to adjust beam activation to optimize coverage and reduce unnecessary transmissions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If beamforming beams are transmitted to cover high frequency spectrum, then link budget is improved, but atmospheric attenuation and penetration loss worsen

Engineering Contradiction:
Improvelink budgetVSAvoidatmospheric attenuation
Core Design Contradiction:
PowerVSLoss of energy

Solution Approach 1:

The patent combines multiple beams into beam groups where beams are transmitted in a coordinated manner. By merging the coverage of multiple beams into groups, the system achieves better overall coverage and link budget while managing atmospheric attenuation through intelligent beam selection and grouping strategies.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent implements dynamic beam management where beams are activated and deactivated based on real-time conditions. The network node dynamically adjusts which beams are transmitted by receiving indication information from wireless devices about beam overlap conditions, allowing the system to adapt to changing atmospheric and propagation conditions.

Inventive Principle:
Principle #15Dynamics

2Area of stationary object

If multiple beams are transmitted to improve coverage, then coverage area is improved, but signaling overhead and processing waste increase

Engineering Contradiction:
Improvecoverage areaVSAvoidsignaling overhead
Core Design Contradiction:
Area of stationary objectVSLoss of information

Solution Approach 1:

The patent extracts only the essential information needed for beam management by having wireless devices report indication information about beam overlap conditions rather than transmitting full measurement data. This selective extraction of critical information reduces signaling overhead while still enabling the network node to make informed decisions about beam activation and deactivation.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent uses partial action by activating only the necessary subset of beams based on received indication information. Instead of transmitting all available beams, the network node selectively activates beams that provide the most value for coverage while avoiding the processing waste associated with managing excessive beams.

Inventive Principle:
Principle #16Partial or excessive action

3Device complexity

If beam overlap information is not known, then system complexity is reduced, but unnecessary transmissions and latency increase

Engineering Contradiction:
Improvesystem complexityVSAvoidlatency
Core Design Contradiction:
Device complexityVSLoss of time

Solution Approach 1:

The patent performs preliminary action by having wireless devices provide indication information about beam overlap conditions before the network node makes beam activation decisions. This advance information allows the network node to proactively manage beam groups, avoiding unnecessary transmissions and reducing latency by having the necessary information available beforehand.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent implements feedback mechanisms where wireless devices report beam measurement results and overlap conditions to the network node. This feedback loop enables the network node to continuously optimize beam group configurations, reducing latency by making informed decisions based on real-time conditions while maintaining manageable system complexity through structured feedback protocols.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS12267138B2First node, wireless device and methods performed thereby, for handling beamforming beams
Publication Date: 2025.04.01 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
  • US12267138B2 patent drawing
  • US12267138B2 patent drawing
  • US12267138B2 patent drawing

AI summary

A method performed by a node, for handling beamforming beams. The node operates in a wireless communications network. The node establishes that at least two beams in a first set of beams transmitted by one or more first radio network nodes are overlapping. The establishing is based on information comprising at least one of: i) a first indication of a first result of one or more measurements performed by one or more wireless devices on the first set of beams, and ii) a report having a second result of a determination that the at least two beams in the first set of beams are overlapping. The node also provides a second indication to at least one of: the node, the one or more second radio network nodes, and the one or more wireless devices. The second indication is based on the established overlap.