127results about How to "Meet the needs of data transmission" patented technology

The invention discloses a data transmission method, a server side and a client. The data transmission method comprises the following steps that: the server side and the client carry out information interaction through an authentication protocol, and perform identity authentication with each other; a session key is generated by the server side and the client through a key exchange protocol; a data packet to be transmitted is encrypted by the client through adopting an encryption algorithm and the session key, and the encrypted data packet is transmitted to the server side; and the received encrypted data packet is decrypted by the server side through utilizing the session key and the encryption algorithm, and the corresponding operation is executed. According to the scheme, unidirectional transmission of the transmitted data packet from the client to the server side can be implemented, establishing process is simple, and the computing resource is effectively saved, so that the data transmission is safer and more reliable.

The invention relates to a method of transmitting high-speed data based on the time duplex mode. First, the upstream transmitting time segments and downstream transmitting time segments are distributed in a time frame, in the upstream and downstream transmitting time segments the sync time slots for realizing upstream and downstream sync are distributed, as well as the control time slots for transmitting upstream and downstream instructions. And the business slots for transmitting high-speed data are also distributed in the time segments. The different business slots are set up to be different time intervals. When the business data are transmitted, the business slots of diverse period are allocated to users according to practical condition. By this method, the users with high service grade or with good transmitting condition could be provided long-time slots.

The invention discloses a CPE (Customer Premise Equipment) terminal, data stream transmission methods and public and private network switching methods. The CPE terminal comprises a master control module, a radio frequency transmitting and receiving module and a 4G communication module which supports public network and private network switching. The master control module receives information forwarded by the radio frequency transmitting and receiving module through utilization of the 4G communication module, issues the information to a business terminal, and / or transmits the information sent bythe business terminal to the 4G communication module. The information is forwarded to the radio frequency transmitting and receiving module through utilization of the 4G communication module. The master control module is equipped with an Ethernet interface in communication connection with the business terminal. The 4G communication module is in communication connection with the master control module through utilization of a USB. The master control module is also equipped with a serial port in communication connection with the business terminal. The 4G communication module is in communicationconnection with the master control module through utilization of a UART (Universal Asynchronous Receiver / Transmitter). According to the CPE terminal, the data stream transmission methods and the public and private network switching method, the 4G communication module which supports the public and private network switching is employed, demands of various business data streams for a transmission network can be satisfied, and power wireless private network construction cost is reduced.

The invention discloses a method for transmitting two-layer data in an LTE system. The method can be used for realizing completely transparent transmission service transmission of the two-layer data between a terminal and a service network without changing the existing network deployment or network plan of users in the industry, simply changing information transmitted in a standard LTE access process and enhancing the two-layer processing ability of a PDN gateway to realize the wireless transparent transmission of the two-layer data between the terminal and the service network by transparently adding the LTE system without changing the network deployment or the network plan of the users, and meeting the data transmission demands in specific industrial fields, and meanwhile, by means of the transparent processing, the method can be used for greatly avoiding the transmission efficiency and processing efficiency problems caused by replacing a data MAC address via the PDN gateway.

The invention provides a data processing apparatus and method for an interconnection circuit. The data processing apparatus is an interconnection node used for connecting one or more transaction data sources to one or more transaction data destinations in the interconnection circuit. The data processing apparatus comprises at least one input end, at least one output end, a buffer storage distribution circuit, a route selection circuit, an arbitration circuit and a multiplexer circuit, wherein the input ends include a plurality of input ports, output ports, at least two multiplexers and at least one buffer memory; the buffer storage distribution circuit controls the multiplexers to allocate temporary storage positions to input transaction data according to current states of the buffer memories; the route selection circuit selects the output ends for transaction data of a buffer queue; the arbitration circuit arbitrates the buffer queue with a priority transmission right and enables transmission of multiple transaction data competing the same output end to obtain output access occupation rights in sequence according to a preset arbitration policy; and the multiplexer circuit is connected with the output ports and the output ends, and transfers data transmission in the interconnection circuit.

The invention discloses an aircraft cabin data distribution method and system. The aircraft cabin data distribution system may include a cabin control unit and a cabin distribution unit, the cabin distribution unit including: a first exchange module for exchanging data with the cabin control unit; a first interface module comprising a first interface for coupling to a first terminal device arranged in an aircraft cabin and transmitting data in a first format with the first terminal device; and a second interface module including a second interface for coupling to a second terminal device disposed within the aircraft cabin and transmitting data in a second format with the second terminal device, wherein the first interface and the second interface have different interface types. The invention further discloses an aircraft cabin data distribution method.