Wireless Media Device Beam Candidate Group Management

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Solution Overview

Problem

Current image display apparatuses face inefficiencies in beam tracking when using wireless communication methods, requiring a significant amount of time for beam selection during media transmission.

Innovation Solution

A wireless media device with a signal processing unit and a transceiver unit that selects and manages a beam candidate group based on link quality, periodically updates candidate beams, and performs beam selection within the group to efficiently and quickly track beams in a wireless environment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If beam tracking is performed using wireless communication method, then wireless media transmission is enabled, but beam selection requires considerable period of time

Engineering Contradiction:
Improvewireless media transmissionVSAvoidbeam selection time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The patent applies preliminary action by pre-establishing a beam candidate group containing multiple candidate beams before actual media transmission begins. The transceiver device periodically measures link quality of these pre-selected beams and updates the candidate group, so when beam tracking is needed, the system can quickly select from already-prepared beams rather than performing comprehensive beam search from scratch, thus significantly reducing beam selection time while maintaining wireless transmission capability.

Inventive Principle:
Principle #10Preliminary action

2Productivity

If beam candidate group is managed and updated periodically, then beam tracking efficiency is improved, but device complexity increases

Engineering Contradiction:
Improvebeam tracking efficiencyVSAvoidbeam management complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent applies segmentation by dividing the complete beam set into a manageable beam candidate group that is periodically updated rather than managing all possible beams simultaneously. The transceiver device segments the beam search process into two stages: first establishing an initial candidate group, then periodically updating it with newly measured beams. This segmentation reduces the immediate management complexity while maintaining high beam tracking efficiency through the structured update mechanism.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements periodic action by having the transceiver device periodically measure link quality of candidate beams and update the beam candidate group at predetermined intervals rather than continuously managing all beams. This periodic approach simplifies the management complexity by introducing updates only at specific moments while maintaining beam tracking efficiency through the accumulated knowledge from previous periodic measurements, avoiding the need for continuous comprehensive beam management.

Inventive Principle:
Principle #19Periodic action

Data Source

PatentUS20240195516A1Wireless media device, and image display apparatus including the same
Publication Date: 2024.06.13 LG ELECTRONICS INC
  • US20240195516A1 patent drawing
  • US20240195516A1 patent drawing
  • US20240195516A1 patent drawing

AI summary

The present disclosure relates to a wireless media device including a signal processing device configured to process an image signal or an audio signal; and a transceiver device configured to wirelessly transmit a signal from the signal processing device to a display device, wherein the transceiver device is configured to select a beam candidate group based on link quality between the wireless media device and the display device, manage the beam candidate group, and perform beam selection based on a plurality of candidate beams in the beam candidate group. Accordingly, beam tracking can be efficiently performed.