CPNS Device Detection via Discovery Request Messages
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Solution Overview
Problem
Conventional technologies have introduced the concept of Converged Personal Network Service (CPNS) but lack a technical specification for implementation, specifically a procedure for establishing physical connections and device discovery within CPNS networks.
Innovation Solution
A method for detecting CPNS-enabled devices involves receiving a discovery request message after physical connection, determining transmission based on device mode and network information, and transmitting discovery response messages to facilitate network joining or generation, thereby simplifying the pairing and discovery processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If a discovery procedure is implemented in CPNS devices, then device detection capability is improved, but communication complexity increases due to redundant information transmission
Solution Approach 1:
The patent extracts the essential discovery information (device mode and network information) from the discovery request message and processes it locally in the CPNS-enabled entity. This extraction approach allows the device to detect other devices without transmitting redundant information back and forth, thereby improving device detection capability while minimizing communication complexity
Solution Approach 2:
The patent performs the discovery information processing in advance by determining whether to transmit discovery request messages based on pre-analyzed device mode and network information. This preliminary action eliminates the need for redundant subsequent communication steps, resolving the contradiction between detection capability and communication complexity
2Reliability
If physical connection procedure is established between CPNS devices, then network connectivity is improved, but pairing time increases due to complex procedures
Solution Approach 1:
The patent determines the transmission of discovery request messages in advance based on device mode and network information before the actual physical connection is established. This preliminary determination streamlines the subsequent connection process, reducing pairing time while ensuring reliable network connectivity through proper mode matching
Solution Approach 2:
The patent segments the physical connection procedure into distinct phases: discovery phase (where discovery request messages are transmitted based on device mode), connection establishment phase, and network integration phase. This segmentation allows each phase to be optimized independently, reducing overall pairing time while maintaining connectivity reliability
Data Source
AI summary
The present invention provides, in one embodiment, a method for detecting another device performed by a first device having a converged personal network service (CPNS) enabled entity. The method for detecting another device comprises the steps of: performing a procedure for a physical connection with a second device, if the CPNS enabled entity within the first device is set to a personal network entity (PNE) mode; and receiving a search request message from the second device, in order to prevent the duplication of information between the CPNS enabled entity and the second device. Preferably, said search request message can be used to obtain one or more pieces of information, among the mode information of one or more devices detected while the procedure for the physical connection is performed and the information on a network to which one or more said detected devices belong. Said received search request message can include one or more pieces of information among the information on the mode of the second device and the information on the network to which the second device belongs.