UWB Service Advertisement and Discovery for Low-Power Interoperability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing technologies do not provide a method for conveying a list of UWB services supported by a device, nor do they indicate if a particular service is supported, limiting the functionality and interoperability of UWB devices.
Innovation Solution
A method and apparatus for transmitting UWB services information using Out-of-Band (OOB) and In-Band communication protocols, including generating and periodically broadcasting advertisement messages to indicate service availability and support, and exchanging service information through request-response messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If existing techniques are used for UWB device communication, then device communication is possible, but service information cannot be conveyed and interoperability is limited
Solution Approach 1:
The patent segments service information into distinct advertisement messages that can be independently transmitted and received. Each advertisement message contains specific service capability data, allowing devices to exchange information about supported services without requiring complete service lists to be transmitted at once. This segmentation enables partial information exchange and improves interoperability while reducing information loss.
Solution Approach 2:
The patent implements preliminary action by having devices broadcast their service capabilities in advance through advertisement messages before actual service interactions occur. This allows receiving devices to pre-process and understand what services are available, enabling better decision-making about which services to initiate and improving overall system adaptability.
2Adaptability or versatility
If comprehensive service information is exchanged between UWB devices, then interoperability improves, but power consumption and message exchange increase
Solution Approach 1:
The patent extracts only the essential service capability information needed for interoperability into compact advertisement messages. Instead of transmitting complete service descriptions, the system extracts key service identifiers and capability flags that enable devices to understand each other's capabilities with minimal data exchange, thereby reducing power consumption while maintaining interoperability.
Solution Approach 2:
The patent implements periodic action through scheduled advertisement message broadcasting at defined intervals rather than continuous transmission. Devices broadcast their service capabilities periodically, allowing receiving devices to update their knowledge of available services without requiring constant communication, thus reducing overall power consumption while maintaining current interoperability levels.
3Reliability
If service information is transmitted continuously, then devices have up-to-date service lists, but power consumption increases
Solution Approach 1:
The patent applies periodic action by transmitting service information advertisements at predetermined time intervals rather than continuously. This periodic transmission maintains reliability by ensuring devices receive updated service information regularly while significantly reducing power consumption compared to continuous transmission modes.
Solution Approach 2:
The patent uses preliminary action by having devices prepare and buffer advertisement messages in advance before transmission. This allows the transmitting device to gather service information beforehand and transmit it in prepared packets at scheduled intervals, ensuring information availability while avoiding the need for continuous real-time data gathering and transmission.
Data Source
AI summary
A method performed by a first ultra-wideband (UWB) device in a wireless communication system is provided. The method may include: transmitting, to a second UWB device, a request message for fetching service related information for at least one service; and in case that the at least one service is supported by the second UWB device, receiving, from the second UWB device, a response message including the service related information for the at least one service.