Patent application number | Description | Published |
20080298508 | RECEIVER FOR ESTIMATING SIGNAL MAGNITUDE, NOISE POWER, AND SIGNAL-TO-NOISE RATIO OF RECEIVED SIGNALS - An improved receiver and method estimate one or more parameters, such as amplitude and signal-to-noise ratio, of a received signal, such as an M-QAM or q-ASK signal. The amplitude of an M-QAM signal is estimated based upon known or ascertainable phase information regarding a plurality of transmitted symbols. The amplitude of a q-ASK signal is estimated based upon known or ascertainable magnitude information regarding a plurality of transmitted symbols. In another embodiment, the amplitude of an M-QAM or q-ASK signal is estimated based on statistical knowledge of the amplitude of the transmitted symbols. Other embodiments estimate amplitude, noise power, and signal-to-noise ratio of a received signal utilizing second-order and fourth-order moments of received samples, a maximum likelihood searching process, or a Kurtosis estimation process. | 12-04-2008 |
20090175293 | METHOD AND SYSTEM FOR TRANSMITTING MESSAGES OVER A FORWARD LINK SIGNALING CHANNEL - A method and system for transmitting messages over an F-SCCH in wireless communication field are disclosed. The method includes the following steps: acquiring a transmission type according to a negotiation between a terminal and a network during a link initialization; configuring a bit number occupied by a message type of messages of the F-SCCH; communicating, by the network, messages with the terminal according to the configured bit number of the message type based on the determined transmission type. With the present invention, redundancy of channel configuration may be decreased, channel configuration of the conventional art is simplified, hence reducing resource occupancy and improving resource utilization of channels. | 07-09-2009 |
20090190645 | ADVANCED RECEIVER WITH SLIDING WINDOW BLOCK LINEAR EQUALIZER - A receiver or an integrated circuit (IC) incorporated therein includes a fast Fourier transform (FFT)-based (or hybrid FFT-based) sliding window block level equalizer (BLE) for generating equalized samples. The BLE includes a noise power estimator, first and second channel estimators, an FFT-based chip level equalizer (CLEQ) and a channel monitor unit. The noise power estimator generates a noise power estimate based on two diverse sample data streams. The channel estimators generate respective channel estimates based on the sample data streams. The channel monitor unit generates a first channel monitor signal including truncated channel estimate vectors based on the channel estimates, and a second channel monitor signal which indicates an approximate rate of change of the truncated channel estimate vectors. The FFT-based CLEQ generates the equalized samples based on the noise power estimate, one-block samples of the first and second sample data streams, the channel estimates and the monitor signals. | 07-30-2009 |
20090219181 | METHOD AND DEVICE FOR TRANSMITTING AND RECEIVING SIGNALS - The present invention relates to the field of wireless communications and discloses wireless signal transmission and reception methods and devices, thus more information can be transmitted via a fixed resource block. In the present invention, at the transmitter side, information for transmission is divided into an n-bit part and an m-bit part, the n-bit part being taken as information borne in a physical resource and a corresponding mapping mode is selected in accordance with the m-bit part; at the receiver side, a sequence carrying a received signal is de-mapped according to all possible mapping modes of the received signal and transmitted information is derived from an optimum signal sequence resulting from de-mapping and corresponding mapping mode. | 09-03-2009 |
20090290630 | ADAPTIVE EQUALIZER WITH A DUAL-MODE ACTIVE TAPS MASK GENERATOR AND A PILOT REFERENCE SIGNAL AMPLITUDE CONTROL UNIT - An adaptive equalizer including an equalizer filter and a tap coefficients generator used to process a sample data stream derived from a plurality of received signals is disclosed. The tap coefficients generator includes an equalizer tap update unit, a vector norm square estimator, an active taps mask generator, a switch and a pilot amplitude reference unit used to minimize the dynamic range of the equalizer filter. A dynamic mask vector is used to mask active taps generated by the equalizer tap update unit when an unmasked signal output by the equalizer filter is selected by the switch to generate an error signal fed to the equalizer tap update unit. A fixed mask vector is used to mask active taps generated by the equalizer tap update unit when a masked signal output by the equalizer filter is used to generate the error signal. | 11-26-2009 |
20090290656 | MULTI-USER MIMO METHOD, APPARATUS AND COMMUNICATION SYSTEM FOR TRANSMITTING SIGNAL - A multi-user multi-input multi-output (MIMO) method for transmitting signal with a includes: performing a Tomlinson-Harashima pre-coding (THP) on raw data; decomposing a channel matrix to a product of a block triangular matrix and a unitary matrix, and generating a signal to be transmitted by performing a forward filtering on the THP coded data by using the unitary matrix. A multi-user MIMO apparatus for transmitting signal includes an interference pre-eliminating unit, a modulo unit, a forward filtering unit, and a channel matrix decomposing unit. A multi-user MIMO communication system is further provided. | 11-26-2009 |
20100002759 | LOW BIAS ESTIMATION OF SMALL SIGNAL-TO-NOISE RATIO - A method implemented by a user equipment includes selecting a first estimate of a signal-to-noise (SNR) ratio, calculating a first amplitude and first noise variance, calculating a second amplitude and a second noise variance, calculating a second SNR, calculating a resolution value, adjusting the first SNR, and performing estimation iterations until the resolution value is equal to a predetermined value. | 01-07-2010 |
20100046673 | RECEIVER FOR ESTIMATING SIGNAL MAGNITUDE, NOISE POWER, AND SIGNAL-TO-NOISE RATIO OF RECEIVED SIGNALS - A method and apparatus for estimating attributes of a received signal that includes a plurality of transmitted signals are provided. The amplitude of the received signal is estimated by performing a method of demodulation based on known signal information. The amplitude of an M-ary quadrature amplitude modulated signal is estimated based upon known or ascertainable phase information regarding a plurality of transmitted symbols. The amplitude of a q-ary amplitude shift keyeing signal is estimated based upon known or ascertainable magnitude information regarding a plurality of transmitted symbols. Statistical information is also used for amplitude estimation. | 02-25-2010 |
20100067620 | REDUCED COMPLEXITY SLIDING WINDOW BASED EQUALIZER - A method and apparatus for use in data estimation in wireless communication are provided. A wireless communications signal is received and transformed to produce a received vector. The received vector is processed using a sliding window based approach that includes processing each of a plurality of windows. For each window, an approximate circulant channel response matrix is produced for use in estimating a data vector corresponding to the window. | 03-18-2010 |
20100091981 | Steganalysis of Suspect Media - Techniques described herein are generally related to steganalysis of suspect media. Steganalysis techniques may include receiving instances of suspect media as input for steganalytic processing. A first set of quantized blocks of data elements may be identified within the media, with this first set of blocks being eligible to be embedded with steganographic data. A second set of quantized blocks of data elements may be identified within the media, with this second set of blocks being ineligible to be embedded with steganographic data. The steganalysis techniques may requantize the first and second blocks. In turn, these techniques may compare statistics resulting from requantizing the first block with statistics resulting from requantizing the second block. The steganalysis techniques may then assess whether the first block of data elements is embedded with steganographic features based on how the statistics of the second blocks compare with the statistics of the first blocks. | 04-15-2010 |
20100215084 | SIMPLE AND ROBUST DIGITAL CODE TRACKING LOOP FOR WIRELESS COMMUNICATION SYSTEMS - A simple and robust CTL is used for time tracking of multipath components of a spread spectrum signal transmitted over a wireless multipath fading channel. A digital code-tracking loop includes the implementations of despreading early and late data samples by use of a pseudonoise sequence, an error signal output generated by the despreading, and adjustment for a plurality of on-time, early and late samples, a data rate of a control signal provided as a fractional proportion of a data rate of error signals. | 08-26-2010 |
20100232528 | METHOD AND SYSTEM FOR DATA TRANSMISSION - A data transmission method, a communications system and related apparatuses are disclosed. The data transmission method includes the following steps: a transmitter obtains channel information corresponding to channels between the transmitter and several receivers; the transmitter obtains a control vector corresponding to a receiver according to the channel information; the transmitter modulates data to be transmitted by means of one-dimensional modulation to obtain modulated symbols; the transmitter processes the modulated symbols and the control vector to obtain transmitted data of each antenna; the transmitter transmits the transmitted data to the receiver; the receiver receives the transmitted data in a predetermined spatial direction of received symbol. The present invention also discloses a communications system and related apparatuses. | 09-16-2010 |
20100235440 | MESSAGE PROCESSING METHOD, SYSTEM AND CLIENT - The embodiments of the present invention disclose a message processing method including: when a backup message user selects a backup message option, obtaining a backup message and information corresponding to the backup message input by the backup message user; and sending the backup message to the target user according to the information corresponding to the backup message. The present invention also discloses a message processing system and an IM client. By using the embodiments of the present invention, a backup message function and a roaming function of the backup message can be implemented, thereby improving the availability, flexibility and convenience performance of IM software. | 09-16-2010 |
20100239043 | METHOD AND APPARATUS FOR DETECTING SIGNALS OF MULTI-INPUT MULTI-OUTPUT SYSTEM - The embodiments of the present invention disclose a method and an apparatus for detecting signals of a MIMO system, and relate to a MIMO technology. The method includes: performing triangular decomposition on a channel matrix of the MIMO system, and decomposing the MIMO system into multiple MIMO subsystems; detecting the receiving signal vector of the first MIMO subsystem, and obtaining the candidate detection vector list of the first MIMO subsystem; detecting remaining MIMO subsystems consecutively in a SIC mode, and generating candidate detection vector lists of the remaining MIMO subsystems; and combining all the lists, and marking decision or performing calculation to obtain the transmitting signal vector of the MIMO system. | 09-23-2010 |
20100269114 | INSTANT MESSENGER AND METHOD FOR DISPATCHING TASK WITH INSTANT MESSENGER - Embodiments of the present invention provide an Instant Messenger (IM) and a method for dispatching tasks by the IM. The method includes: presetting task information in a start-up program configuration table, and dispatching, by the IM, tasks in batches according to the task information in the start-up program configuration table. Preferably, the task information includes the execution delay information and priority information of the tasks. The IM includes a logging-on flow management module and a task dispatching management module. The logging-on flow management module is adapted to store the start-up program configuration table, which is configured with the task information. The task dispatching management module is adapted to dispatch the tasks in batches according to the task information in the start-up program configuration table. With embodiments of the invention, the start-up delay of the IM may be reduced. | 10-21-2010 |
20100330922 | USER SELECTION METHOD AND APPARATUS FOR MULTIUSER MULTIPLE-INPUT MULTIPLE-OUTPUT - A user selection method and apparatus for multiuser multiple-input multiple-output (MIMO) are disclosed. The method includes: selecting two user-beam pairing modes, and obtaining target functions corresponding to the two user-beam pairing modes; comparing the target functions corresponding to the two user-beam pairing modes; and selecting a user-beam pairing mode with a larger target function. With the present invention, the optimal user-beam pairing mode can be quickly obtained when the channel information is inaccurate; and the calculation is simplified. | 12-30-2010 |
20110255395 | METHOD FOR CONSTRUCTING SPACE-TIME/SPACE-FREQUENCY CODE, AND TRANSMITTING METHOD AND APPARATUS - A method for constructing a space-time/space-frequency code, and a transmitting method and apparatus are provided, which relate to the field of wireless communication technologies. The method for constructing a space-time/space-frequency code includes: classifying at least two transmitter antennas into K groups, and classifying information symbols into K′ groups; constructing a Toeplitz matrix for information symbols in each group according to the number of transmitter antennas in a transmitter antenna group; and substituting the Toeplitz matrix for nonzero elements in an Orthogonal Space-Time Block Coding (OSTBC) matrix that is based on K and K′, and when the OSTBC matrix comprises a zero element, substituting a zero matrix with a corresponding dimension, for the zero element. The space-time code constructed with the above method has orthogonality. | 10-20-2011 |
20110255868 | METHOD AND A DEVICE OF SERVICE MIGRATION IN AN AUTOMATICALLY SWITCHED OPTICAL NETWORK - A method and a device of service migration in an automatically switched optical network are disclosed in the present invention, and the method includes: when receiving a migration indication message, a migration node sending an cross information checking request to a transmission plane (S | 10-20-2011 |
20110292827 | METHOD FOR DEMODULATING DATA AND DEMODULATING APPARATUS BASED ON A DOWNLINK TRANSMIT DIVERSITY MODE IN A LTE SYSTEM - A demodulating method and a demodulating apparatus at a receiver based on a downlink transmit diversity mode in a LTE system are provided by the present invention. The method includes: dividing received data from sub-carriers of each receiving antenna based on a transmit diversity mode into multiple groups of received data according to numbers of antennas of a transmitter and a receiver; performing an independent demodulation on each group of the multiple groups of received data separately according to a demodulation algorithm of two-port transmitting and single-port receiving, so as to obtain a corresponding group of demodulated data; and for multiple groups of demodulated data corresponding to same transmitted data, performing a maximum ratio combination on the multiple groups of demodulated data according to a channel condition corresponding to each group of the multiple groups of demodulated data, so as to obtain a corresponding final demodulated data value. The demodulating method and the demodulating apparatus of the present invention can ensure the performance of the system adopting the diversity algorithm in situations of various kinds of antenna configurations, reduce cost and the complexity of devices in a practical application, and is very easy for project implementation. | 12-01-2011 |
20120110237 | METHOD, APPARATUS, AND SYSTEM FOR ONLINE MIGRATING FROM PHYSICAL MACHINE TO VIRTUAL MACHINE - A method, an apparatus, and a system for online migrating from a physical machine to a virtual machine are provided. The method including: after a target virtual machine is created, started, and suspended by a virtualization platform VMM Host, initially synchronizing data of a memory page from a source physical machine to the target virtual machine at a second time point; monitoring the operation of updating the memory page since the second time point; incrementally synchronizing data of the updated memory page in the source physical machine to the target virtual machine, and stopping monitoring when an increment value of the updated memory page in the source physical machine is less than a first threshold; and calling the virtualization platform VMM Host to resume the target virtual machine to a running state. The effect of smoothly switching services from the source physical machine to the target virtual machine is achieved. | 05-03-2012 |
20120128353 | METHOD AND APPARATUS FOR MIGRATING SUB-NETWORK CONNECTION PROTECTION (SNCP) SERVICE - The present invention discloses a method and an apparatus for migrating a Sub-Network Connection Protection (SNCP) service. The method comprises: receiving a migration request of an SNCP service, wherein the migration request comprises one of: Permanent Connection (PC) to Soft Permanent Connection (SPC) migration, SPC to PC migration; respectively setting cross status control bits of a current operation connection and a correlative connection thereof according to the received migration request, and performing collective migration of the current operation connection and the correlative connection thereof according to the set cross status control bits; respectively modifying the cross status control bits of the current connection and the correlative connection thereof according to the migration result. The consistency of cross management authorities of a working connection and a protection connection of the SNCP service migration can be ensured by the present invention. | 05-24-2012 |
20120148726 | ALIGNMENT FILM PRINTING METHOD OF LCD SUBSTRATE AND DEVICE THEREOF - Disclosed are an alignment film printing method of LCD panel and device thereof. The method comprises: acquiring position information of one or more defect substrate units of a substrate; delivering the position information to a process management system; delivering the position information to a first alignment film printing apparatus by the process management system; and excluding the alignment film printing operation to the defect substrate units performed by the first alignment film printing apparatus. The benefits of the present invention is to control the back-end processes for excluding steps of the printing operations, the detection and etc to the defect substrate units, accordingly, material cost of alignment film printing can be saved. | 06-14-2012 |
20120149378 | Handover Method of Terminal, and Base Station Thereof - A handover method of a target base station is disclosed in the present invention, including: after a source base station to which a terminal belongs transmitting a handover request message to at least one alternate target base station, every alternate target base station notifying the source base station of a load state parameter, and the source base station determining one target base station according to the load state parameter of every alternate target base station and indicating the terminal to perform handover to the target base station. A base station is also provided in the present invention, including: a handover request transmission module, a handover request response reception module, a target base station determination module and a handover request response transmission module. The present invention avoids the re-request process of the base station when the handover request fails, and can improve the handover success ratio. | 06-14-2012 |
20120209950 | Data Card and Method for Internet Access of Data Card - The present invention provides a data card and a method for Internet access by the data card. The method for Internet access by the data card includes: after the data card is connected to a host, mapping the data card into an Internet access device by using an Ethernet interface protocol; obtaining, by the data card, dial-up information; dialing, by using the dial-up information, to request to connect to a network; and performing, by the Internet access device, communication between the host and the network. By using the technical solutions provided by embodiments of the present invention, fast Internet access may be implemented without installing a driver. | 08-16-2012 |
20120236704 | RESOURCE ALLOCATION METHOD AND APPARATUS OF MULTI-RELAY ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM - A resource allocation method and apparatus of a multi-relay orthogonal frequency division multiplexing system are disclosed. The resource allocation method of a multi-relay orthogonal frequency division multiplexing system includes: obtaining actual channel information; obtaining resource allocation parameters according to a mathematical optimization problem based on the actual channel information, where the resource allocation parameters include at least two of subcarrier power allocation, relay selection and subcarrier pairing, and the mathematical optimization problem is a mathematical optimization problem set for the subcarrier power allocation, relay selection and subcarrier pairing by using an end-to-end transmission rate optimization principle and based on channel information; and transmitting a signal according to the resource allocation parameters. The foregoing technical solutions optimize system performance. | 09-20-2012 |
20120250780 | METHOD AND DEVICE FOR PRE-CODING, AND METHOD AND DEVICE FOR DECODING - The present invention relates to the field of wireless communications technologies, and discloses a method and device for pre-coding and a method and device for decoding. The present invention implements an interference alignment method with excellent performance, can effectively increase the capacity of a multi-user interference system and reduce the mutual interference among users, The method for pre-coding includes: calculating a pre-coding matrix for each transmitting end according to a sum of mean square errors of data vectors to be transmitted by each transmitting ends; and using the pre-coding matrix to pre-code the data to be transmitted by each transmitting end. The present invention has broad application prospects, for example, can be used in LTE and LTE-Advanced CoMP technology. | 10-04-2012 |
20120257579 | METHOD FOR FEEDING BACK CHANNEL STATE INFORMATION, AND METHOD AND DEVICE FOR OBTAINING CHANNEL STATE INFORMATION - Embodiments of the present invention provide a method for feeding back channel state information, and a method and a device for obtaining channel state information. The method for feeding back the channel state information includes: compressing, by a user equipment, original time domain channel state information to obtain compressed time domain Channel state information: quantizing the compressed time domain channel state information to obtain a codebook index; and sending the codebook index to a base station. With the technical solutions provided by the embodiments of the present invention, the total overhead used for feeding back the channel state information from the user equipment to the base station is reduced. | 10-11-2012 |
20120257695 | Network Coding Method and Device in Cooperative Communication - Embodiments of the present invention provide a network coding method and device in cooperative communication. The method, application and device relate to the field of wireless network communications. The method includes: receiving a signal sent from a first source node by using an OFDM symbol, and receiving a signal sent from a second source node by using an OFDM symbol; and performing a time reversal on one part of received mixed signals, and performing a reversal of a complex conjugate operation on the other part of the received mixed signals. The method, application and device have the advantage of obtaining a full diversity gain. | 10-11-2012 |
20120269236 | SIMPLE AND ROBUST DIGITAL CODE TRACKING LOOP FOR WIRELESS COMMUNICATION SYSTEMS - A simple and robust CTL is used for time tracking of multipath components of a spread spectrum signal transmitted over a wireless multipath fading channel. A digital code-tracking loop includes despreading early and late data samples by use of a pseudonoise sequence, an error signal output generated by the despreading, and adjustment for a plurality of on-time, early and late samples, a data rate of a control signal provided as a fractional proportion of a data rate of error signals. | 10-25-2012 |
20120293437 | METHOD AND DEVICE FOR ADJUSTING LAYOUT OF CONTROL BUTTONS - This disclosure provides a method and a device for adjusting layout of control buttons, used to solve the technical problem that the control buttons in a touch screen device cannot move, and cannot satisfy individual requirements of users. In this disclosure, the control buttons can be implemented with re-layout by receiving a command for adjusting positions of the control buttons, adjusting position information which is corresponding to the control buttons according to the command, saving a corresponding relationship between the adjusted position information and the control buttons, and loading and displaying the control buttons according to the corresponding relationship; thereby, the different and individual requirements of the users can be satisfied, the friendliness of an interface can be enhanced, and the experience quality of the users can be improved. | 11-22-2012 |
20120306129 | REACTION EQUIPMENT FOR PRODUCING SPONGE TITANIUM - The present invention provides a piece of reaction equipment for producing sponge titanium, which includes a reactor and a reactor cover with a stirring device, wherein a sealing ring is arranged between the reactor cover and the reactor, one side of the reactor cover is provided with a lifting device for controlling the lifting of the reactor cover, a resistance furnace is arranged above the reactor cover, a valve is arranged below the resistance furnace, and a vacuum-pumping pipe and an inflation pipe are arranged above the reactor cover. The present invention has the beneficial effects that the production equipment can ensure normal production, and effectively ensures the quality of sponge titanium product; compared with the prior art, the equipment has low cost, environmental protection and harmlessness during production. | 12-06-2012 |
20120314755 | ADAPTIVE EQUALIZER WITH A DUAL-MODE ACTIVE TAPS MASK GENERATOR AND A PILOT REFERENCE SIGNAL AMPLITUDE CONTROL UNIT - An adaptive equalizer including an equalizer filter and a tap coefficients generator used to process a sample data stream derived from a plurality of received signals is disclosed. The tap coefficients generator includes an equalizer tap update unit, a vector norm square estimator, an active taps mask generator, a switch and a pilot amplitude reference unit used to minimize the dynamic range of the equalizer filter. A dynamic mask vector is used to mask active taps generated by the equalizer tap update unit when an unmasked signal output by the equalizer filter is selected by the switch to generate an error signal fed to the equalizer tap update unit. A fixed mask vector is used to mask active taps generated by the equalizer tap update unit when a masked signal output by the equalizer filter is used to generate the error signal. | 12-13-2012 |
20120314860 | Method and apparatus for communication based on pseudo-contact information - The disclosure discloses a method for communication based on pseudo-contact information, which including: when a call is received, acquiring contact information of a calling party, and encrypting the contact information by using a preset encryption algorithm to acquire pseudo-contact information; when the pseudo-contact information does not match locally stored pseudo-contact information, displaying real contact information of the calling party, wherein the locally stored pseudo-contact information represents the pseudo-contact information generated by encrypting the contact information to be stored according to the preset encryption algorithm and locally stored; and when the pseudo-contact information matches the locally stored pseudo-contact information, displaying a substituted contact information generated by substituting a plurality of bits of the real contact information of the calling party with an identifier. The disclosure further discloses another method for communication based on pseudo-contact information and an apparatus for communication based on pseudo-contact information. The disclosure can solve the problems of higher operation complexity and lower safety performance of the method for protecting contact information stored on a terminal mentioned in the related art. | 12-13-2012 |
20120317105 | Method and Apparatus for Updating Index and Sequencing Search Results Based on Updated Index in Terminal - The present invention provides a method and an apparatus for updating an index and sequencing search results based on the updated index in a terminal. The method comprises: retrieving whether there is any modification in a file; if there is any modification in the file, performing an increment index the modified file to generate new index file, wherein the increment index includes a number of times that the modified file is selected historically; merging the new index file into the original index file; obtaining key words input by the user; querying the search results related to the key words, sequencing the search results according to the relevance between the search results and the key words and the number of times that the modified file is selected historically and displaying the sequenced search results to the user. By the present invention, the user experience of the mobile terminal is improved. | 12-13-2012 |
20130003670 | Method and System for Releasing Resources and Evolved Node Base - A method and a system for releasing resources and an evolved Node Base (eNB) are provided in the present invention, wherein the method comprises: an Evolved Packet Core (EPC) receiving a detach request from a User Equipment (UE), wherein the detach request carries a Detach Type of the UE; the EPC informing an eNB corresponding to the UE of the Detach Type; and the eNB cancelling to send a Radio Resource Control (RRC) Connection Release message to the UE in the situation that the Detach Type is switching off. The air-interface signaling and resource overhead are reduced and radio resources are saved by the present invention. | 01-03-2013 |
20130031178 | Method and Apparatus for Managing Message - The present invention provides a method and an apparatus for managing message, including: receiving a request to perform a predetermined operation by a first user on a first message, the first message published by a second user and was previously obtained by the first user before the request to perform the predetermined operation, the request comprising information associated with the predetermined operation on the first message; determining status information of the first message based on a first index of the first message; sending the first message to the first user based on the status information. | 01-31-2013 |
20130039234 | Downlink transmission method and eNodeB in multiple input multiple output system - The disclosure provides a downlink transmission method and an eNodeB in a multiple input multiple output system. The method includes: obtaining channel quality indication of a User Equipment (UE) to generate a channel condition indication value; obtaining channel rank indication of the UE to generate a channel correlation indication value; obtaining uplink channel impulse response estimation data of the UE to generate a channel variation state indication value; selecting a downlink transmission mode according to the channel condition indication value, the channel correlation indication value and the channel variation state indication value; transmitting data to the UE in the selected downlink transmission mode. Because of extracting information from a current channel as a basis of a subsequent selection of the downlink mode, the disclosure can greatly improve a resource utilization ratio of a system and realize a better wireless transmission effect. | 02-14-2013 |
20130058246 | DOWNLINK TRANSMISSION METHOD FOR MULTIPLE INPUT MULTIPLE OUTPUT (MIMO) SYSTEM, AND BASE STATION - The disclosure provides a downlink transmission method for a Multiple Input Multiple Output (MIMO) system, and a base station, wherein the method comprises: a base station selecting a downlink MIMO mode in a downlink transmission mode in which a UE currently is by using a Channel Quality Indicator (CQI), a Rank Indicator (RI) and a Preceding Matrix Indicator (PMI) which are reported by the UE within a time window; and the base station transmitting data to the UE by using the selected downlink MIMO mode. The disclosure achieves the effect of increasing the coverage and capacity of the LTE system to the maximum. | 03-07-2013 |
20130058266 | Method and system for realizing wireless USB flash disk - The disclosure discloses a realizing method and system for taking a mobile terminal as a wireless Universal Serial Bus (USB) flash disk. A client sends a Server Message Block (SMB) protocol data packet as an access request to a mobile terminal in a Bluetooth way after establishing a Logical Link Control and Adaptation Protocol (L2CAP) link with the mobile terminal; the mobile terminal executes the received SMB data packet and sends the SMB data packet as the access result to the client in a Bluetooth way; and the client displays the received access result. The method, device and system for realizing the wireless USB flash disk can take a mobile terminal as a wireless USB flash disk without any additional cable by combining the SMB protocol with the Bluetooth technology and using the mutual conversion between the SMB data packet and the L2CAP data packet, thereby being convenient to users. | 03-07-2013 |
20130177097 | Interference Alignment Method and Device and Multi-Channel Communication System - An interference alignment method, an interference alignment device, and a multi-channel communication system are provided. The method includes: obtaining channel matrix in a multi-channel communication system; determining a first desired signal and a second desired signal of the multi-channel communication system according to the channel matrix; obtaining precoding vectors and receive vectors, after a first receive signal is filtered by a receive vector corresponding to the first desired signal, a signal formed by superposing interference signals included therein has a feature of a lattice constellation pattern, and that at a receiver corresponding to the second desired signal, after a second receive signal is filtered by a receive vector corresponding to the second desired signal, interference signals included therein are canceled, where the first receive signal and the second receive signal are transmit signals sent to the corresponding receivers after precoding processing is performed at transmitters by using corresponding precoding vectors. | 07-11-2013 |
20130254357 | DATA CARD AND METHOD FOR INTERNET ACCESS OF DATA CARD - The present invention provides a data card and a method for Internet access of the data card. The method for Internet access of the data card includes: after the data card is connected to a host, mapping the data card into an Internet access device by using an Ethernet interface protocol; obtaining, by the data card, dial-up information, and dialing by using the dial-up information to request to connect to a network; and performing, by the Internet access device, communication between the host and the network. By using the technical solutions provided by embodiments of the present invention, fast Internet access may be implemented without installing a driver. | 09-26-2013 |
20130272445 | PRECODING METHOD AND APPARATUS - A precoding method and apparatus are disclosed. The corresponding method includes: constructing a Lagrange function according to a precoding matrix, transmit power, a receive filter matrix and a weighting matrix, and obtaining a Lagrange multiplier by using the Lagrange function; updating the precoding matrix according to the Lagrange multiplier to obtain an iterative precoding matrix and an iterative receive filter matrix; obtaining an iterative Lagrange multiplier according to the iterative precoding matrix, the transmit power, the iterative receive filter matrix and the weighting matrix, and repeating the above steps in an iterative manner of updating the iterative precoding matrix according to the iterative Lagrange multiplier till the iterative precoding matrix converges to a threshold; and precoding information to be transmitted according to the iterative precoding matrix converging to the threshold. | 10-17-2013 |
20130318143 | ACCESS CONTROL METHOD AND SYSTEM AND ACCESS TERMINAL - Embodiments of the present invention provide an access control method, an access control system, and an access terminal. The method includes: receiving, by an access terminal, an HTTP request message transmitted by a UE where a destination IP address is an IP address of the access terminal; obtaining an actual IP address corresponding to a website domain name according to DNS resolution when the website domain name is not the IP address of the access terminal, and controlling, according to the actual IP address, the UE to access a target site corresponding to the website domain name. The technical solutions of the present invention solve the problem that a user cannot access the target site because of the cache characteristic of the user equipment. | 11-28-2013 |
20140076235 | EVAPORATING DEVICE AND VACCUM EVAPORATION DEVICE USING THE SAME - An evaporating device comprises a gas guiding element, an evaporating boat received in the gas guiding element to define a receiving space between the evaporation tray and the gas guiding element, and a gas channel. The evaporation tray comprises a bottom wall and two opposing first sidewalls and two opposing second sidewalls extending from the periphery of the first bottom wall. At least one of the first sidewalls and/or at least one of the second sidewalls defines a number of gas holes. The gas holes communicate with the receiving space. One end of the gas channel connects the gas guiding element and communicates with the receiving space to feed gas into the receiving space. A vacuum evaporation device using the evaporating device is also provided. | 03-20-2014 |
20140159757 | System and Methods for Memory Installation in Functional Test Fixture - A system and a method for testing information handling systems is provided. The system includes a top cover having a memory circuit and a bottom platform for receiving a test printed circuit board assembly (PCBA) including a slot. The system includes a sensor determining the relative position of the memory circuit and the slot; and a host controller coupled to the test PCBA and the sensor through a port. A computer program product including a non-transitory computer readable medium having computer readable and executable code is also provided. The code instructs a processor in a host controller in a test fixture to load a memory circuit on a crane; engage a sub-module carrying the memory circuit; load a printed circuit board assembly (PCBA); place a memory device on a slot in the PCBA; perform a system test on the PCBA; disengage the sub-module and the test fixture. | 06-12-2014 |
20140324720 | METHOD, SYSTEM, INTELLIGENT TERMINAL AND STORAGE MEDIUM FOR INFORMATION RECOMMENDATION - The present disclosure provides a method, system, intelligent terminal and storage medium for information recommendation, wherein, the method includes: uploading contact information to a server, by an intelligent terminal; storing the contact information uploaded by the intelligent terminal and acquiring a social account number of a user of the intelligent terminal, by the server; acquiring friend information of the social account number according to the social account number, and matching the acquired friend information with the contact information, then returning the friend information which is successfully matched to the intelligent terminal, by the server; receiving and storing the friend information which is successfully matched, and recommending the friend information which is successfully matched to the user of the intelligent terminal, by the intelligent terminal; and the friend information which is successfully matched including information that has not been set in the contact information of the intelligent terminal. | 10-30-2014 |
20140328478 | METHOD AND SYSTEM FOR IDENTIFYING PRANK CALL, CLIENT, SERVER, AND STORAGE MEDIUM - A method and a system for identifying a prank call, a client, a server, and a storage medium, and the method includes: sending a questionable telephone number to a server through a network instant message by a client; receiving a query result on the questionable telephone number from the server; adding the questionable telephone number to a contact blacklist when the query result shows that the questionable telephone number is a malicious telephone number; and identifying whether an incoming call from the questionable telephone number is a prank call according to the contact blacklist when an incoming call from the questionable telephone number is received. The present disclosure allows for effective identification of prank calls. | 11-06-2014 |
20140359038 | METHOD, APPARATUS, AND SYSTEM FOR EXCHANGING ELECTRONIC BUSINESS CARD - Embodiments of the present disclosure disclose methods, apparatuses, and systems for exchanging electronic business card. One of the methods includes: receiving a first request message sent by a first terminal, wherein the first request message includes first condition information, a first electronic business card, and first location information of the first terminal; selecting a second request message from at least one request message received during a preset period of time, according to the first location information, the first condition information, and the time when the first request message was received; sending an electronic business card corresponding to the second request message to the first terminal; and sending the first electronic business card to a second terminal, wherein the second request message was sent by the second terminal. The methods, the apparatuses, and the systems can be directed to simplify the process of exchanging electronic business cards. | 12-04-2014 |
20140359286 | CONTACT MANAGEMENT METHOD, APPARATUS AND SYSTEM FOR THIRD-PARTY APPLICATION - A contact management method, apparatus and system for a third-party application are described. The contact management method includes: detecting an instruction to obtain a contact, wherein the instruction is input by a user operating the third-patty application; reading contact data in an address book in responsive to the instruction to obtain the contact; encrypting the contact data and obtaining an encrypted contact data; importing the encrypted contact data into a contact data table of the third-party application; and uploading the encrypted contact data in the contact data table to a cloud server, so that a mapping relationship between account information of the user and the encrypted contact data is established at the cloud server, wherein the account information of the user is used for logging in the third-party application. In the method, the apparatus and the system, safety and reliability of the contact data can be improved. | 12-04-2014 |
20140364107 | QUICK COMMUNICATION METHOD AND DEVICE, AND STORAGE MEDIUM - A quick communication method and device, and a storage medium are disclosed in the in present disclosure which belongs to the field of mobile communication. The method includes: displaying a quick communication key on the lock screen interface of a terminal; invoking a shortcut panel according to an operation triggered by a user on the quick communication key, and the shortcut panel includes contact information of a part or all of the contact objects from the contact list in the terminal; receiving a contact object selected by the user, and communicating with the contact object; and the device includes: a display module, an invoking module, and a communicating module. Quick communication with a contact object can be implemented by the present invention through the quick communication key on the lock screen interface of the terminal to improve the efficiency of terminal communication. | 12-11-2014 |
20140365842 | DECODING METHOD AND DECODING DEVICE FOR POLAR CODE CASCADED WITH CYCLIC REDUNDANCY CHECK - The embodiments of the present invention provide a decoding method and a decoding device for a polar code cascaded with CRC. The decoding method includes: performing SC-List decoding on a Polar code according to the number of survival paths L to obtain L survival paths, where L is a positive integer; performing cyclic redundancy check on the L survival paths respectively; and increasing the number of survival paths when all the L survival paths fail to pass the cyclic redundancy check, and acquiring a decoding result of the Polar code according to the increased number of survival paths. In the embodiments of the present invention, the path number of survival paths is adjusted according to a result of the cyclic redundancy check, so as to output paths as much as possible, where the output paths can pass the cyclic redundancy check, thereby improving decoding performance. | 12-11-2014 |
20140379805 | METHOD, DEVICE AND COMPUTER-READABLE STORAGE MEDIUM FOR CROSS-PLATFORM SYNCHRONIZATION OF CONTACTS IN A MULTI-PLATFORM ENVIRONMENT - A method for cross-platform synchronization of contacts in a multi-platform environment is disclosed. The method includes: acquiring a contact to be associated with an account in a social platform; acquiring an account of a friend associated with the contact in the social platform, and binding a phone number of the contact with the associated account of the friend in the social platform; and uploading the phone number and the account in the social platform bound together to a server. When it needs to view social information of a contact, the above method can simplify user operation, reduce time spent for operation in the mobile terminal and increase the battery life of the mobile terminal. Furthermore, a device for cross-platform synchronization of contacts in a multi-platform environment is also disclosed. | 12-25-2014 |
20150026543 | METHOD AND DEVICE FOR DECODING POLAR CODES - Embodiments of the present invention provide a method and a device for decoding Polar codes. A reliable subset is extracted from an information bit set of the Polar codes, where reliability of information bits in the reliable subset is higher than reliability of other information bits. The method includes: obtaining a probability value or an LLR of a current decoding bit of the Polar codes; when the current decoding bit belongs to the reliable subset, performing judgment according to the probability value or the LLR of the current decoding bit to determine a decoding value of the current decoding bit, keeping the number of decoding paths of the Polar codes unchanged, and modifying probability values of all the decoding paths by using the probability value or the LLR of the current decoding bit. | 01-22-2015 |
20150042286 | MOBILE TERMINAL, SYSTEMS AND METHODS FOR CONTROLLING CHARGING AND DISCHARGING BATTERY - A method for controlling charging and discharging of a battery, as well as a server and a mobile terminal for controlling charging and discharging of a battery, are provided. The server is configured to obtain electricity pricing information, to provide the electricity pricing information to a mobile terminal, to receive an instruction from the mobile terminal to charge or discharge a battery; and to provide the instruction to a battery management device to charge or discharge the battery resource according to the instruction. The mobile terminal comprises an enquiry unit configured to send an enquiry instruction for information about electricity price to a server, a displaying unit configured to receive the information about electricity price from the server and to display the electricity pricing information; and an inputting unit configured to receive an instruction to manage a battery resource. | 02-12-2015 |