74results about How to "Transmission will not affect" patented technology

A method for setting up switching path of return countermark in multiprotocol countermark switching system includes utilizing the last node to record path of standby countermark switching path after said path is set up, building up display route object by said node according to recorded reverse path of said path, sending request of setting up countermark switching path with said display route object and issuing said path, setting up said return countermark switching path by each node on said path according to said display route object.

The invention discloses an underwater wireless power and signal transmission system based on a dual-frequency point resonant cavity and relates to the technical fields of wireless power transmission and near-field magnetic communication. In order to solve the problems of low speed and poor quality of underwater wireless power transmission and underwater signal transmission communication at present, the system provided by the invention is characterized in that the signal is transmitted through a high-speed alternating current magnetic field; a digital signal is modulated into a high-frequency carrier signal in a 2FSK mode; the modulated signal is converted into a high-frequency alternating current magnetic field and then emitted by a power amplification and dual resonant cavity circuit structure; at the receiving end, an integrated transceiver resonant cavity generates resonance after receiving a high-frequency magnetic field; only signal transmission can be carried out due to a small coupling coefficient in a long-distance condition; the original signal at the transmitting end can be obtained after signal amplification and demodulation is carried out on small resonated current; energy transmission is carried out during signal transmission due since the coupling coefficient is large when a coil generates coupling resonance in a short distance. Therefore, the system is applicable to underwater wireless power and signal transmission.

According to the technical scheme, a power grid cross-region transmission communication system and method are used for achieving flow monitoring, flow monitoring senses the state of channel flow in real time, including accumulated transmission quantity, current transmission quantity, transmission rate and the like; and for achieving self-adaptive control, specifically, a current channel transmission situation is predicted by utilizing a Bayesian machine learning algorithm according to the flow monitoring data and the transmission data volume, an optimal channel is selected as a next transmission channel; and for achieving load balancing, specifically, when the data volume is transmitted concurrently, a transmission task is distributed according to the flow monitoring and channel transmission situation. The method has the beneficial effects that the network topology of cross-region transmission communication is not changed; the reliability, the concurrency and the transmission efficiency of cross-region transmission are improved, and under isolation equipment redundancy, when a plurality of cross-region transmission fails, the data transmission is not influenced; and after the hardware is restarted, data transmission is automatically recovered.

The invention relates to a cooperative communication method based on a reliable multicast MAC (Media Access Control) layer protocol. The method comprises the following steps of: 1) requesting data from an adjacent target node with good channel quality when an error occurs in the node with a poor channel during transmission, and using the target node as a relay node; and 2) forwarding a data packet to the user of a next article by the relay node, and simultaneously sending the data to the node in which the error occurs through the utilization of wireless communication broadcasting properties. Compared with the prior art, the method has the advantages that reliable communication service can be provided, the total flow of a network is increased, the tree-like transmission properties of multicasting self are sufficiently utilized, and the problem of concealing and exposing stations in wireless communication is successfully solved.

The disclosed scheduling method for grouping access business comprises: RNC acquires due-out flow rate on every high-speed lower share channel according to received NodeB flow rate information and occupied buffer, and schedules access business according to due-out and assignable flow rate. This invention can avoid overload for Iub interface and RNC unit, and eliminates the effect to DCH or CCH from burst high-speed HSDPA transmission.

The invention provides a method and a device for using reserved subcarriers for reducing peak-to-average ratio, which are used by the multi-sector cell in an orthogonal frequency division multiplexing system, wherein, the method comprises: step A, a group of subcarriers are selected from the subcarriers of the multi-sector cell and taken as reserved subcarriers; step B, a peak elimination sequence is generated according to the location information of the selected reserved subcarriers; step C, all the sectors of the multi-sector cell use the peak elimination sequence for eliminating the peak on the data of the sectors to be processed. By using the method and the device, all the sectors of the multi-sector cell use the same reserved subcarriers for eliminating the peak, so that the total number of the subcarriers which are used for eliminating the peak can be reduced and the saved subcarriers can be used for transmitting the data, thereby effectively improving the service efficiency of empty bandwidth.