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    • 51. 发明申请
    • METHOD AND SYSTEM FOR PRECODING AND METHOD FOR CONSTRUCTING PRECODING CODEBOOK
    • 用于预编码的方法和系统以及用于构造预编码的方法
    • US20120134434A1
    • 2012-05-31
    • US13259667
    • 2010-06-30
    • Yijian ChenGuanghui YuBo DaiXun Yang
    • Yijian ChenGuanghui YuBo DaiXun Yang
    • H04L25/49H04B7/02
    • H04L1/0029H04B7/0639H04L1/06H04L25/03923
    • A pre-coding method and system and a method for constructing pre-coding codebook are disclosed, including: a transmitting end and a receiving end storing information of a pre-coding codebook together, the receiving end selecting a codeword from the pre-coding codebook according to an estimated channel matrix and feeding back a serial number of the codeword to the transmitting end, and the transmitting end finding out the codeword according to the serial number and pre-coding, by using the codeword, a symbol block sent to the receiving end; wherein, at least eight codeword vectors or column vectors in at least eight codeword matrixes in the pre-coding codebook are obtained based on 8-dimensional vectors selected from a 8-dimensional vector set, and this 8-dimensional vector set is obtained by calculating from the part or all of 4-dimensional vectors in u1, u2, u3, u4, u5, u6, u7, u8, s, m, n.
    • 公开了一种用于构建预编码码本的预编码方法和系统及方法,包括:发送端和接收端一起存储预编码码本的信息,接收端从预编码码本中选择码字 根据估计的信道矩阵并将码字的序列号反馈到发送端,并且发送端通过使用码字来根据序列号和预编码找出码字,发送到接收端的符号块 结束; 其中,基于从8维向量集合中选择的8维向量获得预编码码本中的至少8个码字矩阵中的至少8个码字向量或列向量,并且该8维向量集是通过计算 从u1,u2,u3,u4,u5,u6,u7,u8,s,m,n的4维向量的部分或全部。
    • 52. 发明申请
    • Method and system for transmitting position reference signal
    • 发送位置参考信号的方法和系统
    • US20120093101A1
    • 2012-04-19
    • US13257847
    • 2009-12-30
    • Bo DaiGuanghui YuWeijun LiXun Yang
    • Bo DaiGuanghui YuWeijun LiXun Yang
    • H04B7/208H04W72/04H04W8/00
    • H04L5/0048G01S1/20H04L5/005H04L27/2613H04W64/00
    • The present disclosure provides a method and system for transmitting a position reference signal, which includes: acquiring a currently needed Position Reference Signal (PRS) sequence with a length of 2×NRBPRS, wherein NRBPRS is the PRS bandwidth configured by high layer signaling, which is represented by a unit of a resource block; determining the position of the PRS sequence in a physical resource block; and transmitting the acquired PRS sequence on the determined position. With the method of the present disclosure, a currently needed PRS sequence is acquired directly, or at first, a PRS sequence with the maximum length is generated, and then the currently needed PRS sequence is intercepted from the PRS sequence with the maximum length. The present disclosure ensures that an effective PRS sequence can be acquired in any circumstance, thereby ensuring the realization of the positioning function of the PRS.
    • 本公开提供了一种用于发送位置参考信号的方法和系统,其包括:获取具有2×NRBPRS长度的当前所需的位置参考信号(PRS)序列,其中NRBPRS是由高层信令配置的PRS带宽,其中 由资源块的单位表示; 确定物理资源块中PRS序列的位置; 以及在所确定的位置上传送所获取的PRS序列。 利用本公开的方法,直接获取当前需要的PRS序列,或者首先生成具有最大长度的PRS序列,然后从具有最大长度的PRS序列截取当前所需的PRS序列。 本公开确保在任何情况下可以获得有效的PRS序列,从而确保实现PRS的定位功能。
    • 53. 发明申请
    • METHODS AND DEVICES FOR SENDING POSITIONING REFERENCE SIGNALS, FOR SENDING DATA AND FOR RECEIVING DATA
    • 用于发送定位参考信号的方法和设备,用于发送数据和接收数据
    • US20120033615A1
    • 2012-02-09
    • US13259387
    • 2009-12-29
    • Bo DaiGuanghui YuZhisong ZuoYijian Chen
    • Bo DaiGuanghui YuZhisong ZuoYijian Chen
    • H04W4/00
    • H04L5/0053H04L5/0007H04L5/0044H04L5/0048H04W72/0446
    • The present invention discloses methods for sending positioning reference signals (PRSs), for sending data and for receiving data. When PRSs and data carried by a physical downlink control channel (PDCCH) are required to be sent on a same physical resource, only the data carried by the PDCCH or the PRSs are sent on the same physical resource; or, when a sending end sends the PRSs and the data carried by the PDCCH on the same physical resource at the same time, a receiving end is made to ignore the received PRSs or the data carried by the PDCCH; or, the sending of the PRSs or the data carried by the PDCCH is limited so that they will not be sent on the same physical resource. The present invention also discloses devices for sending positioning reference signals, for sending data and receiving data. The present invention has solved the problem that the data carried by the PDCCH are in conflict with the PRSs over the fourth OFDM symbol when the PDCCH is sent over the first four OFDM symbols in the subframe, thereby ensuring the overall performance of the system.
    • 本发明公开了用于发送定位参考信号(PRS)的方法,用于发送数据和接收数据。 当物理下行链路控制信道(PDCCH)携带的PRS和数据需要在相同的物理资源上发送时,只有在同一物理资源上才发送由PDCCH或PRS携带的数据; 或者当发送端同时在同一物理资源上发送该PRS和该PDCCH所携带的数据时,使接收端忽略接收到的PRS或PDCCH携带的数据; 或者,PRS的发送或PDCCH所携带的数据被限制,使得它们不会被发送在相同的物理资源上。 本发明还公开了用于发送定位参考信号的装置,用于发送数据和接收数据。 本发明解决了当通过子帧中的前四个OFDM符号发送PDCCH时,PDCCH携带的数据与第四个OFDM符号上的PRS冲突的问题,从而确保了系统的整体性能。
    • 55. 发明授权
    • Method for generating a preamble sequence and a method for determining a cyclic shift
    • 用于产生前导序列的方法和用于确定循环移位的方法
    • US08472308B2
    • 2013-06-25
    • US13059475
    • 2008-12-03
    • Yan XueHuanxi TanPeng HaoGuanghui YuJunfeng Zhang
    • Yan XueHuanxi TanPeng HaoGuanghui YuJunfeng Zhang
    • H04J11/00H04L12/26H04W4/00
    • H04J13/0062H04J13/14
    • A method for generating a preamble sequence and determining a cyclic shift. The method includes: when set a piece of root sequence can only generate one preamble sequence and there is no cyclic shift restriction, setting the cyclic shift step length NCS to be equal to 0 and the corresponding cyclic shift amount Cv=0, at this time the root sequence is directly used as the preamble sequence; when set a piece of root sequence can generate a plurality of preamble sequences and there is no cyclic shift restriction, the cyclic shift step length NCS being not equal to 0, at this time the cyclic shift amount Cv=v·NCS, wherein v=0, 1, 2, . . . , └NZC/NCS┘−1. This method is applied to the situation that a root sequence generates a preamble sequence, and the method for generating the preamble sequence is simple and easy to operate.
    • 一种用于产生前导序列并确定循环移位的方法。 该方法包括:当设置一个根序列只能产生一个前同步码序列,并且不存在循环移位限制时,此时将循环移位步长NCS设置为等于0,并且相应的循环移位量Cv = 0 根序列直接用作前导序列; 当设置一个根序列可以产生多个前同步码序列并且没有循环移位限制时,循环移位步长NCS不等于0,此时循环移位量Cv = v·NCS,其中v = 0,1,2,... 。 。 ,└NZC/NCS┘-1。 该方法适用于根序列产生前置码序列的情况,并且用于生成前导序列的方法简单易操作。
    • 56. 发明申请
    • Method and System for Sharing Frequency Spectrum Between GSM System and LTE System
    • GSM系统与LTE系统之间频谱共享的方法与系统
    • US20130315183A1
    • 2013-11-28
    • US13981717
    • 2011-09-20
    • Jiying XiangGuanghui YuLiujun HuShijun ChenYanwei WuZhaogang HeXianming ZhaoDaxiong Xie
    • Jiying XiangGuanghui YuLiujun HuShijun ChenYanwei WuZhaogang HeXianming ZhaoDaxiong Xie
    • H04W72/04
    • H04W72/0453H04L5/0044H04L5/0053H04L5/0073H04W16/02H04W16/14H04W72/1215
    • The disclosure discloses a method for sharing a frequency spectrum between a GSM system and a LTE system. The method includes: avoiding fixed channels of the LTE system of a current cell when allocating frequency points of the GSM system to the current cell and a neighbour cell interfering with the current cell; frequency domain resources allocated to users and indicated by Physical Downlink Share Channels (PDSCHs) and Physical Uplink Share Channels (PUSCHs) of the LTE system are not located on same frequency resources with frequency points of the GSM system of the current cell and the neighbour cell interfering with the current cell; and for Physical Control Format Indicator Channels (PCFICHs) and Physical Hybrid ARQ Indicator Channels (PHICHs) of the LTE system, avoiding the PCFICHs and the PHICHs of the LTE system when allocating frequency points of the GSM system to the current cell and the neighbour cell interfering with the current cell, or allocating, by the LTE system, an appropriate Cell Identification (CellID) to avoid the frequency points of the GSM system of the current cell and the neighbour cell interfering with the current cell. The disclosure further discloses a system for sharing a frequency spectrum. According to the method and the system of the disclosure, the GSM system is able to transit to the LTE system smoothly while frequency spectrum utilization is improved.
    • 本公开公开了一种用于共享GSM系统和LTE系统之间的频谱的方法。 该方法包括:当将GSM系统的频点分配给当前小区和相邻小区干扰当前小区时,避免当前小区的LTE系统的固定信道; 分配给用户并由物理下行链路共享信道(PDSCH)和物理上行链路共享信道(PUSCH)指示的频域资源与当前小区和相邻小区的GSM系统的频点不在同一频率资源上 干扰当前单元格; 和用于LTE系统的物理控制格式指示符信道(PCFICH)和物理混合ARQ指示信道(PHICH),在将GSM系统的频点分配给当前小区和相邻小区时,避免了PCFICH和LTE系统的PHICH 干扰当前小区或由LTE系统分配适当的小区标识(CellID),以避免当前小区的GSM系统和相邻小区干扰当前小区的频点。 本公开还公开了一种用于共享频谱的系统。 根据本公开的方法和系统,GSM系统能够在频谱利用率提高的同时顺利地转移到LTE系统。
    • 58. 发明授权
    • Method for mapping downlink dedicated pilots to resource elements in extended cyclic prefix frame structure
    • 将下行专用导频映射到扩展循环前缀帧结构中的资源元素的方法
    • US08391233B2
    • 2013-03-05
    • US12671389
    • 2008-12-25
    • Jing JiangGuanghui YuHui Yu
    • Jing JiangGuanghui YuHui Yu
    • H04W4/00
    • H04L5/0051H04B7/068
    • A method for mapping downlink dedicated pilots to resource elements in an Extended Cyclic Prefix frame structure, applied in a long term evolution system, includes the following steps: the first downlink dedicated pilot of each port is mapped to the specific position of a physical resource block; other downlink dedicated pilots of the port are mapping-processed according to the time-domain interval, frequency-domain interval and a preset regulation; the time-domain interval is two or three OFDM symbols, and the frequency-domain interval is two subcarriers of the same time domain. By defining the positions of pilots in the physical resource block, downlink dedicated pilots can obtain the information of all channels when a base station uses a beamforming of more than four antennas. Making the channel information obtained by dedicated pilots contain the real channel information and the process-weight-value of a beamforming, a UE does not need to obtain the transmission-weight-value of a beamforming, thereby avoiding the feedback overhead of beamforming weight-values.
    • 将下行专用导频映射到在长期演进系统中应用的扩展循环前缀帧结构中的资源元素的方法包括以下步骤:将每个端口的第一下行专用导频映射到物理资源块的特定位置 ; 端口的其他下行专用导频根据时域间隔,频域间隔和预设的规则进行映射处理; 时域间隔是两个或三个OFDM符号,频域间隔是相同时域的两个子载波。 通过在物理资源块中定义导频的位置,当基站使用多于四个天线的波束形成时,下行专用导频可以获得所有信道的信息。 由专用导频获得的信道信息包含波束成形的实数信道和处理权重值,则UE不需要获得波束形成的发送权重值,从而避免波束形成权重的反馈开销, 价值观。
    • 59. 发明申请
    • METHOD FOR GENERATING A PREAMBLE SEQUENCE AND A METHOD FOR DETERMINING A CYCLIC SHIFT
    • 用于生成前序列的方法和用于确定循环移位的方法
    • US20110150156A1
    • 2011-06-23
    • US13059475
    • 2008-12-03
    • Yan XueHuanxi TanPeng HaoGuanghui YuJunfeng Zhang
    • Yan XueHuanxi TanPeng HaoGuanghui YuJunfeng Zhang
    • H04L7/00
    • H04J13/0062H04J13/14
    • A method for generating a preamble sequence and determining a cyclic shift. The method includes: when set a piece of root sequence can only generate one preamble sequence and there is no cyclic shift restriction, setting the cyclic shift step length NCS to be equal to 0 and the corresponding cyclic shift amount Cv=0, at this time the root sequence is directly used as the preamble sequence; when set a piece of root sequence can generate a plurality of preamble sequences and there is no cyclic shift restriction, the cyclic shift step length NCS being not equal to 0, at this time the cyclic shift amount Cv=v·NCS, wherein v=0, 1, 2, . . . , └NZC/NCS┘−1. This method is applied to the situation that a root sequence generates a preamble sequence, and the method for generating the preamble sequence is simple and easy to operate.
    • 一种用于产生前导序列并确定循环移位的方法。 该方法包括:当设置一个根序列只能产生一个前同步码序列,并且不存在循环移位限制时,此时将循环移位步长NCS设置为等于0,并且相应的循环移位量Cv = 0 根序列直接用作前导序列; 当设置一个根序列可以产生多个前同步码序列并且没有循环移位限制时,循环移位步长NCS不等于0,此时循环移位量Cv = v·NCS,其中v = 0,1,2,... 。 。 ,└NZC/NCS┘-1。 该方法适用于根序列产生前置码序列的情况,并且用于生成前导序列的方法简单易操作。
    • 60. 发明申请
    • Method for mapping downlink dedicated pilots to resource elements in extended cyclic prefix frame structure
    • 将下行专用导频映射到扩展循环前缀帧结构中的资源元素的方法
    • US20100142476A1
    • 2010-06-10
    • US12671389
    • 2008-12-25
    • Jing JiangGuanghui YuHui Yu
    • Jing JiangGuanghui YuHui Yu
    • H04W72/04
    • H04L5/0051H04B7/068
    • A method for mapping downlink dedicated pilot frequencies of an extend cyclic prefix frame structure to physical resource blocks, applied in a long term evolution system, includes the following steps: the first downlink dedicated pilot frequency of each channel is mapped to the specific position of a physical resource block; other downlink dedicated pilot frequencies of the channel are mapping-processed according to the time domain interval, frequency domain interval and the preset regulation; the time domain interval is two or three OFDM symbols, the frequency domain interval is two sub-carriers of the same time domain. By defining the positions of pilot frequencies in the physical resource block, the public pilot frequency can obtain the information of all channels when a base station uses a beam pattern of more than four antennas. Making the channel information obtained by dedicated pilot frequencies contain the real channel information and the process-weight-value of a beam pattern, a UE does not need to obtain the transmission-weight-value of a beam pattern, such as to avoid the feedback cost of weight-values of a beam pattern.
    • 一种用于将扩展循环前缀帧结构的下行专用导频频谱映射到长期演进系统中应用的物理资源块的方法,包括以下步骤:将每个信道的第一下行专用导频频率映射到 物理资源块 根据时域间隔,频域间隔和预设调节对信道的其他下行专用导频进行映射处理; 时域间隔是两个或三个OFDM符号,频域间隔是同一时域的两个子载波。 通过在物理资源块中定义导频的位置,当基站使用多于四个天线的波束模式时,公共导频可以获得所有信道的信息。 使专用导频获得的信道信息包含实数信道信息和波束模式的处理权重值,则UE不需要获得波束图案的发送权重值,例如避免反馈 波束图案的重量值成本。