| 摘要 |
Disclosed are an information interaction method, device and system for a WBAN. The method comprises: sending, by a hub, a beacon frame to a node in accordance with a preset superframe structure, and receiving information sent by the node, wherein the superframe structure comprises three phases: the first phase comprises a first beacon period, a first time slot period and a second time slot period, the first time slot period and the second time slot period being used for the node to send an emergency service and a common service respectively; the second phase comprises a second beacon period and a third time slot period, the third time slot period being used for the node to supplementarily send a service; and the third phase comprises a fourth time slot period, the fourth time slot period being used for the node to send a sleep application and/or an access application. By means of the present invention, the problems of a signalling transmission structure of the WBAN in the related art are solved, so that the probability of failing to send is reduced to a large extent, the time slot is used to a larger extent, the prior transmission of an emergency service is ensured as far as possible, and the energy consumption of a node and a network is reduced at the same time. |
