2730results about How to "Improve data transfer efficiency" patented technology

Disclosed is a method and apparatus for transmitting / receiving data in a wireless communication system. The method includes: a terminal transmitting a coverage enhancement request or capability information for the terminal; a base station determining a channel setting for the terminal based on the transmitted request or information; and transmitting downlink data and performing random access on the basis of the determined channel setting. Namely, a scheme for adaptively transmitting and receiving data in consideration of the coverage of the terminal is proposed.

A method of transmitting control information includes dividing frequency bandwidth into ranges to which the same PMI (precoding matrix index) is applied, obtaining multiple antenna information by the range to which the same PMI is applied and transmitting the multiple antenna information. Since multiple antenna information is transmitted by the unit of a range to which the same PMI is applied, radio resources allocated for transmitting the multiple antenna information may be reduced, thereby enhancing data transmission efficiency.

Disclosed are a mobile terminal and mobile communication system capable of changing downlink traffic and a method for transmitting data in a mobile communication network using the same. When at least one predetermined requirement for an additional downlink traffic allocation request is met, the additional downlink traffic allocation request is sent from a mobile terminal (MT) to a base station (BS). The BS, receiving the additional downlink traffic allocation request, determines whether or not additional downlink traffic allocation is possible. If the additional downlink traffic allocation is determined to be possible, the BS allocates the additional downlink traffic to the MT and transmits a downlink signal using downlink traffic including the additionally allocated downlink traffic.

A method for transmitting data in a wireless communication system is provided. The method includes: transmitting first data through a radio resource allocated in a unit of a default transmission time interval (TTI) including at least one sub-frame in a frame including a plurality of sub-frames consisting of a plurality of orthogonal frequency division multiplexing (OFDM) symbols; and transmitting second data through a radio resource allocated in a unit of a modified TTI obtained by changing the number of sub-frames included in the default TTI in the frame.

Disclosed are a broadcast signal transmitter, a broadcast signal receiver, and a method for transceiving a broadcast signal in the broadcast signal transmitter / receiver. A method for transmitting a broadcast signal comprises the following steps: signaling in-band signaling information to at least one of a service component physical layer pipe (PLP) including at least one service component of a broadcast service, a first information PLP including first service information applied to one broadcast service and a second information PLP including second service information applied commonly to a variety of broadcast services; performing the FEC encoding on data included in each PLP; performing time-interleaving on the FEC encoded data; generating a transmission frame including the time-interleaved data; and modulating the transmission frame and transmitting a broadcast signal including the modulated transmission frame.

An apparatus and method for determining a modulation order of packet data to be transmitted through a subcarrier in a transmission apparatus. In the apparatus and method, transmitter physical channels encode and modulate data to transmit the user data with OFDM symbols. A controller outputs packet data to the transmitter physical channels, and determines the number of transmission slots, the number of OFDM symbols, the number of subchannels, and a size of an encoder packet. A modulation order and code rate decider receives, from the controller, the number of transmission slots, the number of OFDM symbols, the number of subchannels, and a size of an encoder packet, calculates a Modulation order Product code Rate (MPR), determines a modulation order according to the MPR, and outputs the determined modulation order to a corresponding physical channel.

The present invention discloses a data transmission method, apparatus, equipment and system for direct connection communication, which belongs to the technical field of communication. The method comprises the steps of sending direct connection data to a second terminal through a direct connection link according to the DCI sent by an access network device by a first terminal; receiving the HARQ feedback information of the direct connection hybrid automatic retransmission request fed back by the second terminal, wherein the direct connection HARQ feedback information is used to indicate the receiving state corresponding to the direct connection data; and reporting the direct connection HARQ feedback information to the access network device. In this way, in the direct connection communicationscenario based on the access network equipment scheduling, the direct connection HARQ feedback information may be directly transmitted from the second terminal to the first terminal, and then reported by the first terminal to the access network device to ensure the success rate of information transmission and reception in the direct connection communication scenario, and improve the efficiency ofdata transmission.

The invention discloses a network system for providing mobile edge computing service and a service method thereof, so as to solve the technical problem of flexible deployment of MEC on a mobile communication network. In the C-RAN architecture, an SDN-based MEC controller is deployed, and an MEC server is deployed in the BBU. The service implementation step mainly comprises the following steps: setting a decision threshold; judging whether the time delay is sensitive or not and the like to determine a computing mode by an MEC controller; and giving a computing result through four computing modes of computing of a local MEC server, combination computing of a plurality of MEC servers, computing of a specific non-local MEC server and computing of a cloud center; and finishing all user MEC tasks through repeated executions. According to the method, the MEC service is realized; meanwhile, the remaining computational resources in the BBU can be sufficiently used, and the MEC network hierarchyis more concise, so that the management is facilitated, the data transmission efficiency is improved, the pressure of a core network is relieved, and the overall computing task time delay is reduced.The method can be used for flexible deployment of the MEC on the mobile communication network in the present 4G period, the 4G to 5G transition period and the 5G period.

It is an object to improve data transmission efficiency by reducing a length of time required for transmitting pilot signals.A MIMO-OFDM transmitter has a plurality of transmitting antennas transmitting OFDM signals to a receiver, and a generating unit generating direct spreading pilot signals of which pilot data for demodulating the OFDM signals transmitted from the plurality of transmitting antennas in the receiver are spread with direct spreading codes, and transmitting the direct spreading pilot signals from the plurality of transmitting antennas.

A multi-graphics processor system includes a CPU; a first GPU connected to the CPU via an input / output interface; and a second GPU connected to the first GPU via a second-GPU interface. The first GPU is provided with a second-GPU bus for communicating the CPU and the second GPU via the second-GPU interface. The CPU communicates with the second GPU via the second-GPU bus after receiving a signal indicating the timing of the data communication.

An encoding method and apparatus in a data communication system are provided. The method includes inputting a source block including a plurality of source payloads, converting the source block to an information block including a plurality of information payloads according to an Information Block Generation (IBG) mode selected from a plurality of IBG modes, transmitting a delivery block generated by adding a parity block generated by encoding the information block according to a selected encoding scheme to the source block to a receiver, and transmitting information indicating the selected IBG mode to the receiver.

The invention provides a reliable data transmission method and a device thereof. The method comprises the following steps: a data transmitting end divides a file to be transmitted into a data packets with serial numbers; according to a preset buffer data packet format, the data packets are packaged into data packets to be transmitted, and then are added to a transmission buffer area: the data packets to be transmitted in the transmission buffer area are transmitted in sequence; the data packets confirmed at a data receiving end in the transmission buffer area are deleted; whether the stoppingtime of the data packets in the transmission buffer area is over a preset time threshold or not is judged, and if so, the data packets are reset to be the data packets to be transmitted; and the transmission process is repeated. In the scheme of the invention, as only the data format and the transmission process at the transmitting end and the receiving of the data packets are controlled, no special data packets are needed to be transmitted between the transmitting end and the receiving end to carry out handshake connection operation, and under the condition that the system expense is less and the data transmission efficiency is high, the problem that the existing UDP (User Datagram Protocol) can not reliably transmit the data can be solved.

A method and system for transmitting and receiving signals to increase transmission efficiency in a wireless communication system using multiple antennas are provided. A relay node receives a first signal from a Base Station (BS) according to a first signal scheme and a second signal from a Mobile Station (MS) according to a second signal scheme. The relay node generates a third signal by XOR-operating the first signal and the second signal, multiplies the third signal by a weight matrix, and transmits the multiplied signal to the BS and the MS.

A storage system 1 includes a channel interface (IF) unit 11 having an interface with a server 3, a disk IF unit 16 having an interface with a hard disk unit 2 , a memory unit 21 for storing data to be read / written from / to the server 3 or the hard disk unit 2 , a switching unit 51, and the hard disk group 2. The channel IF unit 11, the disk IF unit 16, and the memory unit 21 are connected to each other through the switching unit 51, and an encryption and decryption processing unit 201 is provided between a host IF unit 101 and a transfer controller 103 in the channel IF unit 11.

Packet flow rate control techniques are enhanced by the interactive and early invocation of packet queuing to control short flows of packets and to eliminate undershoot and overshoot of a targeted flow rate. Packet queuing involves the scheduled release of packets in accordance with flow policies (priorities) to achieve a preselected outgoing target flow rate. The combination of controlled packet queuing and packet flow rate control with appropriate mechanisms for favoring one over the other improves the efficiency of data transmission.

A data transfer system using a high-speed serial interface system that forms a tree structure in which point-to-point communication channels are established for data sending and data receiving independently is provided. The data transfer system includes plural end points each having plural upper ports each of which is connected to a switch of an upper side, wherein each end point includes a port selecting part for selecting a port to be used according to an operation mode of the data transfer system so as to dynamically change the tree structure.

A mobile terminal and switching method for controlling data transmission interface thereof are provided. The mobile terminal comprises an application processor, a communication processor and data transmission interfaces thereof, the application processor comprising a traffic monitor unit and an interface control unit, wherein the traffic monitor unit is configured to detect data traffic of data transmission, compare the data traffic with a preset threshold to obtain a comparison result, and output the comparison result; and the interface control unit is configured to control, on receipt of the comparison result, the connection or disconnection of a high-speed data line between the application processor and the communication processor, and to transmit a corresponding interface switching command to the communication processor for switching the data transmission interface. With the present invention, the power consumption of the system can be reduced and the efficiency of the data transmission can be improved.

The invention relates to the wireless communication technology, in particular to a method and a device for indicating a terminal to report measurement information, which can be used for indicating the terminal to measure certain cells in an LTE-A system so as to realize CoMP technology. The method of the embodiment of the invention comprises the following steps of: determining a reported cell set CRCS of the terminal; and sending the determined reported cell set to the terminal to indicate the terminal to measure the cells in the reported cell set, and reporting the measurement related information. The method of the embodiment of the invention can indicate the terminal to measure the certain cells so as to realize the CoMP technology in the LTE-A system and improve the resource utilization rate and data transmission efficiency of the system.

A communications system having an ATM transmission line and an IP transmission line is disclosed that includes a base station capable of communicating with a mobile terminal through a radio link; and a radio network controller capable of communicating with the base station through the ATM or IP transmission line. The radio network controller includes a division part dividing transmission data into signals of a predetermined data size; a transmission part transmitting the divided signals to the base station at predetermined time intervals; a retransmission part retransmitting the signals transmitted to the base station when a response signal from the mobile terminal is not received within a predetermined period; a measuring part measuring a signal response period in a communications channel between the radio network controller and the mobile terminal through the base station; and a determination part determining the predetermined data size based on the measured response period.

Provided are a method and apparatus for connecting a sensor network to a heterogeneous network, in which an external network connected to the sensor network functions as a virtual personal area network (PAN) so that the same PAN address system is used between the sensor network and the external network by using a concept of a ‘virtual PAN’. According to the method and apparatus for connecting the sensor network to the heterogeneous network, a node of the sensor network can efficiently communicate with a node of the external network including the heterogeneous network by assigning the virtual PAN address to the node of the external network including the heterogeneous network without inserting any additional layer into the node of the sensor network.

The invention provides an object serializing method as well as an object de-serializing method, device and system, which can preset a type value of each field in an object. The object serializing method comprises the following steps of: carrying out binary conversion on the type value of each field so as to obtain a binary sequence of the type value of each field, and carrying out the binary conversion on a label value of each field so as to obtain a binary sequence of the label value of each field; combining the binary sequence of the label value of each field with the binary sequence of the type value of each field, so as to obtain a binary sequence of a key value of each field; carrying out the binary conversion on value information of a field name of each field, so as to obtain a binary sequence of the value information of each field; connecting the binary sequence of the key value of each field with the binary sequence of the value information, so as to obtain a binary sequence of each field; and connecting the binary sequence of each field, so as to obtain the binary sequence of an object.

The invention provides a framework system applied to the field of intelligent wear and based on an MEAN framework so as to solve the problem of interconnection of intelligent wear equipment, a mobile phone APP and a cloud server. Meanwhile, the invention provides an application framework applied to the field of child bracelet equipment and based on a tracking planned and triggered bracelet capable of preventing children from being lost so as to solve the problems that consumption of equipment batteries is increased and the tracking requirements of different scenes can not be met due to the fact that a child bracelet reports aimlessly in real time.

The invention discloses a report system and method for quickly completing large data processing. The method includes: selecting a report template and setting parameters for report query; forming a pre-compiled data structure according to the selected report template and parameter information; Query the original result set in , and filter the original result set according to the filter expression; the data processing module sorts and groups the filtered result set, and performs formatting according to the template information; the data processing module converts the report The resulting structure is encapsulated as a query result set and returned to the client for rendering. The system and method of the present invention are used to realize high-speed data generation because the format and data are completely separated. After the client receives the data, it does not need to analyze the data, which improves the efficiency of data transmission between the client and the server, greatly Improve the speed of querying a large amount of data in the report, reduce the memory usage of server-side data, and reduce the system load.

Methods, apparatus and computer programs are provided for data replication, such as for replicating a database or updating a cache. Source database change transactions are captured and batched together for efficient data transfer. On receipt at a target replica system, the batch of transactions within a message is separated and separate apply transactions corresponding to the source transactions are performed in parallel. A ‘transaction processed’ table is updated to reflect apply processing for each apply transaction. This table provides a confirmation of the status of each transaction that can be used during recovery processing to prevent re-apply of an apply transaction. The table can also be used to determine when it is safe to delete an incoming message from persistent storage on the target system, and to facilitate one-phase commit processing.

The invention discloses a intelligent video monitor search method, including the steps: collecting the video frame, extracting the moving target information flow, storing the corresponding moving target information flow of the video frame; searching the stored moving target information flow, judging the detected object whether matching with the defined affair rule, if so, determining the corresponding occurrence of the affair rule. Furthermore, the invention includes the step of inquiring the stored affair and the step of playing back the corresponding video frame based on the affair selection. The invention discloses an intelligent video monitor affair search system for executing the method. Due to the target information data flow smaller than the video data flow, hence the invention has faster searching speed, higher searching effectiveness, higher data transmission, lower cost compared with the prior scheme.

The invention discloses an LTE (Long Term Evolution) carrier aggregation antenna of portable equipment with a full-metal shell. The antenna comprises a body, a grounding plate, a metal ring, an antenna component and a metal rear cover, wherein the metal ring is symmetrically provided with a first slot and a second slot; the metal ring is divided into a metal ring upper section and a metal ring lower section by the first slot and the second slot; the metal rear cover is provided with a third slot and is divided into a first metal cover body and a second metal cover body by the third slot; the antenna component comprises a radiation main body, a first feed part, a second feed part, a band pass filter, a low-frequency matching module with a filter or duplexer function and a high-frequency matching module; the radiation main body is the metal ring lower section and the second metal cover body; the first feed part is connected with the radiation main body through the high-frequency matching module; the second feed part is connected with the radiation main body through the low-frequency matching module. According to the out-band carrier aggregation antenna capable of supporting an LTE-A (Long Term Evolution-Advanced) technology, the data transmission rate is greatly improved.

The invention relates to multimedia communication technique, disclosing a multimedia communication method and the terminal design and implementation thereof, improving transmission reliability and communication quality. And the invention adopts ERRTP to provide a transmission layer packing form able to carry error resilient encoding solution related information on the basis of the existing RTP protocol, making multimedia data label the corresponding error resilient encoding solution related information while transmitted on ERRTP, thus merging error resilient mechanism into the transmission layer; in accordance with H.264 NALU structure, the invention provides a special ERRTP packing method and protocol header modification solution, able to integrate all NALU header bytes in the same ERRTP packet into its header, thus expressing important information of NALU in the ERRTP header and raising transmitting efficiency.