On-Demand Beacon Beam Selection for Sub-THz Alignment

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current wireless communication networks face inefficiencies in beam search and alignment processes, particularly in sub-THz frequency range communications, which consume excessive resources and power, and require frequent beam adjustments and recovery procedures.

Innovation Solution

The implementation of an on-demand beam selection system where access points transmit beacon signals only when requested, using directional radio access technology to tailor dynamic beacon beams that can be combined with data transmission, reducing computational resource usage and optimizing beam alignment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional beam search and alignment processes are used in sub-THz frequency range communications, then beam alignment can be achieved, but excessive computational resources and power are consumed

Engineering Contradiction:
Improvebeam alignmentVSAvoidcomputational resource usage
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The access point transmits beacon signals containing beam information in advance before actual data transmission begins. This preliminary action allows the user equipment to pre-select optimal beams without requiring extensive computational resource usage during the actual communication process, thereby resolving the contradiction between achieving reliable beam alignment and consuming excessive computational resources.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The user equipment autonomously selects beams from the beacon signals received from the access point without requiring complex centralized coordination or extensive computational processing. This self-service approach enables the device to independently perform beam selection, reducing the computational burden on the network and improving energy efficiency while maintaining reliable beam alignment.

Inventive Principle:
Principle #25Self-service

2Reliability

If frequent beam adjustments and recovery procedures are implemented, then communication reliability is improved, but resource allocation and power consumption increase

Engineering Contradiction:
Improvecommunication reliabilityVSAvoidresource allocation
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

Multiple beacon signals with different beam configurations are transmitted in advance, allowing the user equipment to select the most appropriate beam before data transmission begins. This preliminary beam selection reduces the need for frequent beam adjustments and recovery procedures during actual communication, thereby improving communication reliability while minimizing resource allocation and power consumption.

Inventive Principle:
Principle #10Preliminary action

3Productivity

If directional radio access technology is used for beam transmission, then spectral efficiency is improved, but device complexity increases

Engineering Contradiction:
Improvespectral efficiencyVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

Beacon signals serve as an intermediary that carries beam information from the access point to the user equipment. These beacon signals enable directional beam transmission and improve spectral efficiency without requiring the user equipment to implement complex beamforming algorithms or directional transmission capabilities, thereby achieving high spectral efficiency while minimizing device complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS20250175236A1Optimized Beam Search and Alignment in Directive Systems
Publication Date: 2025.05.29 APPLE INC
  • US20250175236A1 patent drawing
  • US20250175236A1 patent drawing
  • US20250175236A1 patent drawing

AI summary

Disclosed are methods, systems, and computer-readable medium to perform operations including: receiving, from a device, a beacon request; generating a transmission beacon pattern associated with the beacon request; transmitting a plurality of beams according to the transmission beacon pattern; receiving a message that identifies one or more strongest transmission beams of the plurality of beams; generating a reception beacon pattern associated with the beacon request; transmitting the one or more strongest transmission beams according to the reception beacon pattern; and communicating, with the device, using at least one of the one or more strongest transmission beams and a reception beam of the device.