Geofenced Sidelink Grouping for Lower-Power Wireless Broadcasts

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Solution Overview

Problem

Existing sidelink communication technologies in wireless networks lead to resource wastage and high power consumption due to broadcasted transmissions that are not relevant to all devices, particularly in defined geographical areas.

Innovation Solution

Implementing sidelink groups associated with predetermined geographical areas, where devices within the area receive only relevant information, and devices outside the area are excluded from unnecessary transmissions, with relay capabilities for improved coverage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If broadcasted sidelink transmissions are used to ensure all WDs receive information, then coverage and accessibility are improved, but resource usage and power consumption increase

Engineering Contradiction:
Improveinformation accessibilityVSAvoidpower consumption
Core Design Contradiction:
Ease of operationVSLoss of energy

Solution Approach 1:

The patent segments the sidelink communication by creating geographical areas and associating WDs with specific areas. Each WD receives sidelink transmissions only if it is located within the associated geographical area, dividing the broadcast domain into smaller, location-based segments. This resolves the contradiction by maintaining information accessibility for relevant WDs while eliminating unnecessary transmissions to WDs outside the area, thereby reducing power consumption and resource usage.

Inventive Principle:
Principle #1Segmentation

2Productivity

If broadcasted sidelink transmissions are used to ensure all WDs receive information, then information delivery is improved, but resource efficiency deteriorates

Engineering Contradiction:
Improveinformation deliveryVSAvoidresource usage
Core Design Contradiction:
ProductivityVSQuantity of substance

Solution Approach 1:

The patent applies local quality by making sidelink transmission relevance dependent on the WD's geographical location. Each geographical area has associated WDs that receive transmissions locally relevant to that area. This ensures information delivery is maintained for WDs within the area while preventing resource waste on WDs outside the area, thus improving resource efficiency without compromising information delivery for the target audience.

Inventive Principle:
Principle #3Local quality

3Loss of energy

If sidelink groups are created for specific geographical areas, then resource efficiency and power consumption are improved, but device complexity increases

Engineering Contradiction:
Improvepower consumptionVSAvoidgroup management complexity
Core Design Contradiction:
Loss of energyVSDevice complexity

Solution Approach 1:

The patent implements self-service by enabling WDs to autonomously determine their association with geographical areas and receive sidelink transmissions based on their location. WDs independently evaluate whether they are within a geographical area and whether they should receive transmissions, eliminating the need for complex centralized group management. This reduces device complexity while maintaining the energy efficiency benefits of location-based filtering.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS20250365744A1Methods for handling sidelink communication with a group of wireless devices associated with a predetermined geographical area and related devices
Publication Date: 2025.11.27 SONY GROUP CORP
  • US20250365744A1 patent drawing
  • US20250365744A1 patent drawing
  • US20250365744A1 patent drawing

AI summary

A method is disclosed, performed by a first wireless device (WD) for handling sidelink communication with one or more second WDs comprised in a sidelink group associated with a predetermined geographical area. The method comprises obtaining access information for connecting to the sidelink group associated with the predetermined area geographical. The method comprises communicating, based on the access information, with the one or more second WDs in the sidelink group via sidelink.