Wireless Communication Device with Granular Multicast Service Delivery

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Solution Overview

Problem

Current communication technologies in proximity services (ProSe) are limited by the range of communication services provided by a single terminal device, especially in scenarios like Internet of Vehicles, Intelligent Robots, and Drones, where broadcast and groupcast communication modes are restricted, lacking customization and efficient data forwarding mechanisms.

Innovation Solution

An electronic apparatus and method for wireless communications that transmit and receive service information with finer granularities, enabling beam matching and relay transmission to enhance multicast communication, allowing for customized data streaming and directional data transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If broadcast is performed based on a mapping relationship between a single service and a destination Layer-2 ID, then the communication coverage is expanded, but the service customization capability deteriorates

Engineering Contradiction:
Improvecommunication coverageVSAvoidservice customization capability
Core Design Contradiction:
Area of stationary objectVSAdaptability or versatility

Solution Approach 1:

The patent segments the service data into different granularities (service data with first granularity and service data with second granularity) and uses different transmission modes (broadcast and groupcast) for different segments. This allows the system to maintain broad coverage while enabling customized service delivery to specific devices based on their requirements.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements local quality by providing different service data granularities to different receiving devices. Not all devices receive the same level of service detail - devices with specific requirements receive customized groupcast data, while others receive broadcast data. This creates quality variation tailored to local device needs within the same communication coverage area.

Inventive Principle:
Principle #3Local quality

2Area of stationary object

If a single terminal device provides communication services based on broadcast and groupcast, then the communication range is extended, but the communication efficiency deteriorates

Engineering Contradiction:
Improvecommunication rangeVSAvoidcommunication efficiency
Core Design Contradiction:
Area of stationary objectVSProductivity

Solution Approach 1:

The patent segments service information into multiple granularities and uses selective transmission modes. Groupcast is used for devices requiring customized services, while broadcast is used for general dissemination. This segmentation allows efficient resource allocation by avoiding unnecessary transmissions to all devices, thereby maintaining communication efficiency while extending communication range.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system dynamically selects between broadcast and groupcast transmission modes based on device requirements and network conditions. The terminal device can adapt its transmission strategy in real-time, switching between efficient groupcast for targeted services and broader broadcast for general communication, optimizing overall communication efficiency across the extended range.

Inventive Principle:
Principle #15Dynamics

3Device complexity

If broadcast data packets carry destination Layer-2 ID without forwarding mechanism, then the implementation complexity is reduced, but the service adaptability deteriorates

Engineering Contradiction:
Improveimplementation complexityVSAvoidservice adaptability
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent segments the data transmission process into different types of data packets (first data packets for broadcast, second data packets for groupcast). This segmentation allows each packet type to have simplified handling mechanisms appropriate to its purpose, reducing overall implementation complexity while enabling service adaptability through the existence of multiple packet types with different forwarding and delivery mechanisms.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces an intermediary mechanism (the processing circuitry that determines transmission modes and manages data packet generation) that mediates between the simplified broadcast requirement and the adaptive service delivery requirement. This intermediary layer handles the complexity of determining which devices need which service granularities, allowing the basic broadcast mechanism to remain simple while achieving service adaptability.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS20250344259A1Electronic device and method for wireless communication, and computer-readable storage medium
Publication Date: 2025.11.06 SONY GROUP CORP
  • US20250344259A1 patent drawing
  • US20250344259A1 patent drawing
  • US20250344259A1 patent drawing

AI summary

Provided in the present disclosure are an electronic device and method for wireless communication, and a computer-readable storage medium. The electronic device comprises a processing circuit, which is configured to send to one or more second terminal devices service information of a service that a first terminal device can provide, the service information comprising service type information and service characteristic information, and is configured to provide a data stream of a corresponding service to at least one terminal device among the one or more second terminal devices on the basis of the service information.