Patent application number | Description | Published |
20090131059 | COMMUNICATION METHOD AND SYSTEM, DATA TRANSMISSION METHOD AND SYSTEM, AND COMMUNICATION MODE COMBINATION METHOD AND SYSTEM - A communication method based on a plurality of softer handoff groups is provided, which includes: dividing various services into different characteristic services according to characteristics of the services; and selecting at least one softer handoff group as a serving cell of a terminal according to the characteristic services subscribed by the terminal. A communication system, a data transmission method and a data transmission system, and a communication mode combination method and a communication mode combination system based on a plurality of softer handoff groups are further provided. With the above technical solutions, through selecting a plurality of softer handoff cells as the serving cell, the requirement of simultaneous transmission of wideband service data is satisfied and the system efficiency is enhanced, thereby improving the resource utilization rate. | 05-21-2009 |
20090172791 | USER ACCESS METHOD AND SYSTEM - A user access method and system are provided. The method includes the following steps. After the connection between a terminal and an access network AN is disconnected, a media access control identifier MAC ID is preserved in a predetermined time period. If the terminal initiates an access to the AN within the predetermined time period, the MAC ID is used by the terminal for accessing the AN. The system of the present embodiment includes a terminal and an AN. According to the method and system, the access time initiated by the terminal is reduced, the access collision is avoided, and the system performance is greatly enhanced. | 07-02-2009 |
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 |
20090285156 | METHOD, APPARATUS AND SYSTEM FOR SCHEDULING SDMA CODEBOOKS - A method for scheduling an SDMA codebook includes: selecting, by a user, a most matching precoding matrix and a minimally interfering cluster in the SDMA codebook according to Channel State Information, CSI, of the user; calculating a data transmission rate supportable when the user undergoes interference caused by the minimally interfering cluster; and feeding back an index of the most matching precoding matrix, an index of the minimally interfering cluster, and the data transmission rate to a base station. An apparatus and system for scheduling an SDMA codebook is also provided. | 11-19-2009 |
20100265843 | Method, Apparatus and System for Forming Time Division Duplex Multi-Input Multi-Output Downlink Beams - In a method for forming TDD MIMO downlink beams, a BS receives an index of a codebook element from a mobile terminal. The codebook element refers to a codebook element whose correlation value has a greatest modulus value among correlation values that are calculated by the mobile terminal and are about correlation between the codebook element and a channel corresponding to a non-transmitting antenna of the mobile terminal. The BS calculates a channel vector corresponding to the non-transmitting antenna of the mobile terminal. The BS calculates channel vectors of the transmitting antennas of the mobile terminal, and performs SVD to determine a best transmitting precoding matrix. | 10-21-2010 |
20100265855 | METHOD, APPARATUS AND SYSTEM FOR FORMING TIME DIVISION DUPLEX MULTI-INPUT MULTI-OUTPUT DOWNLINK BEAMS - A method, an apparatus, and a system for forming Time Division Duplex (TDD) Multi-Input Multi-Output (MIMO) downlink beams are disclosed herein. The method includes: generating a transmitting beam of a first data stream according to a Maximum Rate Transmission (MRT) criterion; and generating transmitting beams of other data streams except the first data stream, wherein the transmitting beams of other data streams are confined in a null space of the transmitting beam of the first data stream. Through the embodiments of the present invention, the Base Station obtains precise Partial Channel State Information by using only reciprocity without requiring feedback information, and thus the calculation is simplified and the rate of data streams is improved. | 10-21-2010 |
20100284298 | Method and Apparatus for Transmitting Information by Using Cyclic Prefix Timeslots - A method for transmitting information by using Cyclic Prefix (CP) timeslots includes a transmitter transmitting CP information at a portion of CP timeslots when transmitting the timeslots or transmitting no CP information at CP timeslots when transmitting the CP timeslots. A method for using CP timeslots effectively and an apparatus for using CP timeslots are also disclosed. | 11-11-2010 |
20100290549 | Method, System and Apparatus for Improving Throughput Performance of Space Division Multiple Access System - A method, a system, and an apparatus for improving throughput performance of an SDMA system are disclosed herein. The method includes BTS receiving feedback information sent by a UE, where the feedback information comprises an ID of a preferred beam of the UE in a pre-coding codebook, information related to a channel vector modulus value, and information about phase difference between a channel vector and the preferred beam of the UE, and the BTS using a set estimation algorithm to estimate sum throughputs supported by a current SDMA system in each sending mode according to the received feedback information and information about space correlation between multiple antennas of the BTS, selecting a maximum sum throughput among the estimated sum throughputs, and using the sending mode corresponding to this sum throughput to send data. The method, system, and apparatus provided herein improve transmitting performance of the SDMA system. | 11-18-2010 |
20130016661 | METHOD FOR PROCESSING DATA IN A NETWORK SYSTEM, eNodeB AND NETWORK SYSTEM - The embodiments of the present invention provide a method for processing data in a network system, eNodeB and network system, relate to the field of communication technology, and is made in view of the problem of increasing of processing burden of a core network and interference aggravation due to decrease of radius of the cell. The method for processing data in a network system comprises: receiving data, using interference alignment or partially distributed space-time coding or network encoding technologies to coordinate and suppress interference of the data; identifying the characteristics of the data, classifying the data; and performing data bypassing on the data according to the classifications of the data. The present invention is applicable to the mobile communication technology. | 01-17-2013 |
20130023276 | DATA TRANSMISSION METHOD AND SYSTEM - The present invention provides a data transmission method and system, where the method is used in a system architecture adopting a virtual heterogeneous network, where a macro base station covering a macro-cell and a pico base station covering a pico-cell share the same station address. The method includes the following step: sending control information and data information to user terminals in the macro-cell and the pico-cell according to location information of the user terminals so that the user terminals obtain the data information according to the control information. The system includes a sending module. The present invention implements joint scheduling of resources between a macro base station and a pico base station, reduces interference between cells, and maximally improves an overall data rate. | 01-24-2013 |
20130064318 | METHOD AND DEVICE FOR ACQUIRING PRECODING MATRIX - A method and device for acquiring a precoding matrix are provided by the present invention. The method for acquiring a precoding matrix includes: for each receiving end, selecting the interference vectors as the interference space basis vectors from whole interference vectors, representing the remaining interference vectors as the linear combination of the interference space basis vectors, wherein the remaining interference vectors are the interference vectors in the whole interference vectors of the receiving end except the interference vectors which act as the interference space basis vectors ( | 03-14-2013 |
20130083759 | METHOD, APPARATUS, AND SYSTEM FOR SELECTING SERVING NODES FOR ACCESS - Embodiments of the present invention provide a method, an apparatus, and a system for selecting serving nodes for access, where the method includes: obtaining reference signal received parameters of at least two nodes; selecting a downlink serving node from the at least two nodes according to the reference signal received parameter of each node; and sending an uplink signal, so that the downlink serving node selects an uplink serving node from the at least two nodes according to the uplink signal; or, selecting an uplink serving node from the at least two nodes according to the reference signal received parameter of each node, and sending an uplink signal. In the embodiments of the present invention, a user equipment selects a downlink serving node from at least two nodes according to the reference signal received parameter of each node; then the user equipment sends an uplink signal. | 04-04-2013 |
20130101009 | DATA STREAM PROCESSING METHOD, DEVICE, AND SYSTEM - The present invention provides a data stream processing method, device, and system. The data stream processing method includes: using a precoding parameter to perform precoding processing on an l | 04-25-2013 |
20130194984 | METHOD AND APPARATUS FOR HANDLING FULL-DUPLEX INTERFERENCE - The present invention provides a method and an apparatus for handling full-duplex interference. One method includes: obtaining an interference degree that is caused when a site device performs full-duplex transmission with at least two UEs; and determining, according to the interference degree, a UE allowed to transmit uplink and downlink signals on the same time and frequency resource among the at least two UEs. In embodiments of the present invention, a UE allowed to transmit uplink and downlink signals on the same time and frequency resource may be classified according to an interference degree that is caused when a site device performs full-duplex transmission with at least two UEs, thereby preventing the interference problem in the scenario of point-to-multipoint full-duplex communication as much as possible. | 08-01-2013 |
20130235960 | METHOD AND DEVICE FOR ACQUIRING PRECODING MATRIX - A method and device for acquiring a precoding matrix are provided by the present invention. The method for acquiring a precoding matrix includes: for each receiving end, selecting the interference vectors as the interference space basis vectors from whole interference vectors, representing the remaining interference vectors as the linear combination of the interference space basis vectors, wherein the remaining interference vectors are the interference vectors in the whole interference vectors of the receiving end except the interference vectors which act as the interference space basis vectors ( | 09-12-2013 |
20140140335 | WIRELESS LOCAL AREA NETWORK COORDINATED DATA TRANSMISSION METHOD, DEVICE, AND SYSTEM - A WLAN coordinated data transmission method, system, and relevant device are disclosed. The WLAN coordinated data transmission method includes: detecting, by an offloading scheduling controller, whether the number of MAC SDUs buffered in a MAC SDU queue of a mobile communication module exceeds a preset threshold, and, if so, packing a part of the MAC SDUs into a MAC PDU, and sending the MAC PDU to a coordination mode management module through an interface of the mobile communication module; sending, by the coordination mode management module, the MAC PDU containing the packed part of the MAC SDUs through an LLC protocol layer to a WLAN module for transmission; and packing, by the offloading scheduling controller, a remaining part of the MAC SDUs buffered in the MAC SDU queue into a MAC PDU, and transmitting the MAC PDU through the mobile communication module. | 05-22-2014 |