Abstract:
An LTE-based method, system, and device for ultra-distance coverage communication. The method comprises: increasing an uplink feedback subframe interval at a terminal side and an uplink feedback subframe interval at a base station side; after receiving uplink scheduling information sent by the base station side, the terminal side sending data over a subframe whose subframe interface is the increased uplink feedback subframe interval at the terminal side; and the terminal side receiving data verification information that is delivered by the base station side over a subframe whose subframe interval is the increased uplink feedback subframe interval at the base station side.
Abstract:
The disclosure discloses a method, device and system for managing a communication link, and a computer storage medium. The method includes that: according to the path quality of different transmitting directions of a received signal and the path quality corresponding to a receiving direction of the signal, a sink device determines transmitting and receiving directions of a communication link (101); and the sink device establishes the communication link according to the determined receiving direction (102).
Abstract:
An LTE-based method, system, and device for ultra-distance coverage communication. The method comprises: increasing an uplink feedback subframe interval at a terminal side and an uplink feedback subframe interval at a base station side; after receiving uplink scheduling information sent by the base station side, the terminal side sending data over a subframe whose subframe interface is the increased uplink feedback subframe interval at the terminal side; and the terminal side receiving data verification information that is delivered by the base station side over a subframe whose subframe interval is the increased uplink feedback subframe interval at the base station side.
Abstract:
A method and system for implementing visible light communication, a sending apparatus and a receiving apparatus are disclosed. The method includes: after performing constellation modulation on data to be sent, a sending end mapping a modulated signal to a corresponding luminescent light source and transmitting the data to be sent through an optical signal; a receiving end converting a received optical signal into an electrical signal, and determining a constellation modulation signal according to a luminescent light source corresponding to the received signal, and demodulating the constellation modulation signal to obtain received data.
Abstract:
A visible light communication system is provided. The communication system includes at least one of a FFD and a visible light communication light source, and a RFD, wherein the visible light communication light source is configured to carry data information in a visible light signal and send the visible light signal; the RFD is in communication with the FFD and/or in communication with the visible light communication light source, and is configured to receive the visible light signal and demodulate the received visible light signal to recover data information; and the FFD is configured to achieve at least one of the following functions: the function of the visible light communication light source, the function of the RFD, and a function for forwarding the received visible light signal. In the present invention, the technical problem that visible light resources cannot be used fully because there is no network structure used for the visible light communications in the conventional art is solved, thereby achieving the technical effect of improving the utilization rate of the visible light.
Abstract:
Provided are information interaction methods, devices and system for a Wireless Body Area Network (WBAN). The method includes that: a Hub sends beacon frames to nodes according to a preset superframe structure and receives, according to a preset superframe structure, information sent by the nodes. The preset superframe structure includes three phases. The first phase includes a first beacon period, a first timeslot period and a second timeslot period, the first timeslot period being used by nodes to send an emergency service and the second timeslot period being used by nodes to send an ordinary service. The second phase includes a second beacon period and a third timeslot period, the third timeslot period being used by nodes to complementarily send a service. The third phase includes a fourth timeslot period, the fourth timeslot period being used by nodes to send a sleep application and/or an access application.
Abstract:
Disclosed are a multi-band wireless communication method, a coordinating device and a network, wherein the method is applied to a coordinating device that supports multi-band communication, wherein the coordinating device manages a node resource information table, and the node resource information table includes terminal information of a subnet where the coordinating device is located and other subnets; the method includes: the coordinating device receiving a link establishment request; the coordinating device responding to the link establishment request according to the node resource information table, instructing transmitting and receiving ends to establish a point-to-point connection or coordinating to establish relay links between the transmitting and receiving ends; and receiving and forwarding received data packets when the coordinating device is a relay node.
Abstract:
An acquisition method for data in a wireless body area network and a central device, the acquisition method includes: a central device acquiring topology structure information of a network formed by node devices, and according to the topology structure information of the network determining time slot information about a super-frame; after time slot information is published, acquiring service data packets of an Exclusive Access Phase EAP, a Random Access Phase called RAP and a managed access MAP1 phase in sequence; acquiring packet loss information in the MAP1 phase, and allocating time slots of a managed access MAP2 phase according to the packet loss information; and after the allocated time slots are published, acquiring service data packets in the MAP2 phase according to the allocated time slots. The technical solution can realize the reliable transmission of data in a wireless body area network and reduce the power consumption and time delay.
Abstract:
A method and a device for processing wireless body area network data, the method is applied to a processing device for wireless body area network data and comprises: receiving or generating sampled value reference ranges; receiving sampled data from an acquisition device of wireless body area network data, and judging a sampled value reference range to which the sampled data belong according to a sampled value of the sampled data; and processing the sampled data according to the sampled value reference range to which the sampled data belong. Through the embodiments of the present document, degrees of importance of the sampled data can be automatically differentiated and the data processing efficiency is improved under the situation of limited resources.
Abstract:
A visible light communication system is provided. The communication system includes at least one of a FFD and a visible light communication light source, and a RFD, wherein the visible light communication light source is configured to carry data information in a visible light signal and send the visible light signal; the RFD is in communication with the FFD and/or in communication with the visible light communication light source, and is configured to receive the visible light signal and demodulate the received visible light signal to recover data information; and the FFD is configured to achieve at least one of the following functions: the function of the visible light communication light source, the function of the RFD, and a function for forwarding the received visible light signal. In the present invention, the technical problem that visible light resources cannot be used fully because there is no network structure used for the visible light communications in the conventional art is solved, thereby achieving the technical effect of improving the utilization rate of the visible light.