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Service discovery method and device based on 6LoWPAN (IPv6 overLow-Power Wireless Personal Area Networks)

A service discovery and network technology, applied in the field of communication, can solve the problem of high resource overhead of IoT terminals

Inactive Publication Date: 2014-05-21
ZTE CORP
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0010] The technical problem to be solved by the present invention is to provide a service discovery method and device based on a 6LoWPAN network to solve the problem of large resource overhead in service discovery of IoT terminals in the prior art

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  • Service discovery method and device based on 6LoWPAN (IPv6 overLow-Power Wireless Personal Area Networks)
  • Service discovery method and device based on 6LoWPAN (IPv6 overLow-Power Wireless Personal Area Networks)
  • Service discovery method and device based on 6LoWPAN (IPv6 overLow-Power Wireless Personal Area Networks)

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Embodiment Construction

[0051] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0052] SLP implements a relatively simple service discovery mechanism. Its service is represented by URL (Uniform / Universal Resource Locator, Uniform Resource Locator), so the message is lightweight, through UDP (User Datagram Protocol, User Datagram Protocol) or TCP (TransmissionControl Protocol, transmission control protocol) transmission, through the simple interaction between DA (directory agent, service aggregator), SA (service agent, service provider and UA (user agent, service requester), In particular, DA as a service agent makes SLP scalable. From the perspective of resource overhead, energy consumption, and scalability, the service discovery mechanism for 6LoWPAN networks can learn f...

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Abstract

The invention discloses a service discovery method and device based on 6LoWPAN. The service discovery method and device based on the 6LoWPAN comprises an initialization step which includes that a host respectively completes route discovery and host address registration; a service registration step which includes that an SA (service agent) announces a service time which can be provided to a border router; service inquiry step which includes that a UA (user agent) seeks SA information which can provide services for the border router, the border route sends service inquiry response messages to the UA, and application interaction is performed between the SA and the UA. According to the service discovery method and device based on the 6LoWPAN, considering limits such as 6LoWPAN terminal memory capacity and energy consumption, an interactive mechanism is simplified as much as possible, service discovery messages are simplified to reduce loads of a data packet to be adapted to a low-bitrate wireless network of 802.15.4, resource overheads are small, and the mechanism is simple; a service discovery method is designed specially according to conditions of large numbers of application terminals and scalability of application functions of Internet of Things and advantages of high flexibility and strong scalability can be obtained.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a service discovery method and device based on a 6LoWPAN (IPv6 overLow-Power Wireless Personal Area Networks, IPv6-based low-speed wireless personal area network) network. Background technique [0002] Service Discovery (SD, Service Discovery), as a key application layer protocol of traditional networks, enables devices to automatically publish or learn available services on the network. In IoT applications, service discovery is particularly important in IoT applications because smart terminals cannot conveniently interact directly with users, and multiple applications can exist in the same network deployment. For example, in the building automation system, the switchgear needs to find the corresponding light source equipment; in the temperature acquisition system, the temperature sensor needs to find the corresponding anchor node. Service discovery is performed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L12/741H04L12/761H04L45/16H04L45/74H04W4/70
CPCH04W84/22H04W12/08H04W84/18H04W4/70H04L61/4541H04L61/5092H04L2101/30H04L2101/659
Inventor 于长健孙知信张震玮唐苏宁何军
Owner ZTE CORP
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