Broadcasting to Unspecified Entities in Wireless Systems
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Solution Overview
Problem
The legacy oneM2M system faces challenges in transmitting data to unregistered entities and experiences transmission delays due to the requirement of pre-registration and subscription/notification schemes, which restrict data sharing to only previously registered entities, especially in time-sensitive communication scenarios like vehicle safety data broadcasting.
Innovation Solution
A method and device for broadcasting a message to unspecified entities in a wireless communication system, which involves creating resources for receiving and transmitting broadcast messages, storing content, and triggering notifications based on event conditions, allowing data to be sent to unregistered entities using predetermined keywords and network protocols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pre-registration procedure is required for data transmission, then communication reliability is improved, but transmission delay increases and inability to transmit to unregistered entities occurs
Solution Approach 1:
The patent applies preliminary action by pre-defining wildcard subscription resources and notification target attributes during system initialization or resource setup phase. This allows the system to be prepared in advance for receiving broadcast messages from unregistered entities, eliminating the need for real-time registration while maintaining organized data flow and reliable delivery to intended recipients.
2Measurement precision
If pre-registration procedure is required for data transmission, then entity identification accuracy is improved, but system complexity increases and transmission to unspecified entities becomes impossible
Solution Approach 1:
The patent applies universality by creating wildcard subscription resources that can serve multiple functions: they can receive broadcast messages from any unregistered entity, maintain organized subscription management, and enable flexible notification routing. The notification target attribute with wildcard values allows a single resource structure to handle both specific and unspecified entity communications, reducing the need for multiple specialized registration mechanisms.
3Measurement precision
If subscription/notification scheme is used, then data transmission accuracy to specific entities is improved, but ability to broadcast to multiple unspecified entities is lost
Solution Approach 1:
The patent applies intermediary by introducing wildcard subscription resources as a mediating layer between broadcast messages and specific entity notifications. These wildcard resources act as intermediaries that can capture broadcast messages intended for unspecified entities and then distribute notifications to appropriate target entities based on the notification target attribute, thereby enabling both accurate specific delivery and flexible broadcast capability.
4Adaptability or versatility
If dynamic registration procedure is implemented for moving devices, then communication adaptability is improved, but transmission delay increases for time restrictive data
Solution Approach 1:
The patent applies preliminary action by pre-configuring wildcard subscription resources and notification target attributes before communication occurs. This allows moving devices to transmit broadcast messages immediately without undergoing dynamic registration procedures, as the wildcard resources are already prepared to receive and route messages from unspecified entities, thereby eliminating registration delay while maintaining adaptability for moving devices.
Data Source
AI summary
Provided is a method for transferring a broadcast message to an unspecified entity in a wireless communication system, the method performed by a device for transferring a broadcast message and comprising creating a resource for receiving the broadcast message in accordance with a request, received from an application device, for creating the resource for receiving the broadcast message, storing a content of the broadcast message in a specified attribute of the created resource if the broadcast message is received, and if an event trigger condition of a subscription resource for the created resource is satisfied, transmitting a notification message, which includes the stored content of the broadcast message, to an address or a device indicated by a notification target attribute of the subscription resource.