Apparatus and method for automatically controlling interference in broadband wireless communication system
    81.
    发明授权
    Apparatus and method for automatically controlling interference in broadband wireless communication system 有权
    宽带无线通信系统中自动控制干扰的装置和方法

    公开(公告)号:US08116793B2

    公开(公告)日:2012-02-14

    申请号:US12416881

    申请日:2009-04-01

    IPC分类号: H04B7/00

    摘要: An apparatus and method for automatically controlling interference in a broadband wireless communication system are provided. In the method, a BS receives an interference measurement information signal of one or more adjacent BSs. The BS analyzes the interference measurement information signal of the one or more adjacent BSs to obtain information about the average power for each frequency band used by each of the one or more adjacent BSs. The BS uses the obtained information about the average power for each frequency band of the one or more adjacent BSs to determine the average power for each frequency band to be used by the BS. The BS generates an interference measurement information signal of the BS according to the determined average power for each frequency band.

    摘要翻译: 提供了一种用于自动控制宽带无线通信系统中的干扰的装置和方法。 在该方法中,BS接收一个或多个相邻BS的干扰测量信息信号。 BS分析一个或多个相邻BS的干扰测量信息信号,以获得关于一个或多个相邻BS中的每一个使用的每个频带的平均功率的信息。 BS使用获得的关于一个或多个相邻BS的每个频带的平均功率的信息来确定BS要使用的每个频带的平均功率。 BS根据所确定的每个频带的平均功率产生BS的干扰测量信息信号。

    Apparatus and method for supporting a plurality of MIMO modes in a wireless communication system
    82.
    发明授权
    Apparatus and method for supporting a plurality of MIMO modes in a wireless communication system 有权
    一种用于在无线通信系统中支持多个MIMO模式的装置和方法

    公开(公告)号:US08098752B2

    公开(公告)日:2012-01-17

    申请号:US12221225

    申请日:2008-07-31

    IPC分类号: H04K1/10

    摘要: An apparatus and method for supporting a plurality of MIMO modes in a wireless communication system are provided, in which a receiver selects one of the plurality of MIMO modes according to at least one of a received signal strength, a speed of the receiver, a correlation between a transmitter and the receiver, a presence or absence of channel quality information, a precoding index, and an antenna information, a rank, and a number of users, generates feedback information in a transmission format corresponding to the selected MIMO mode, and transmits the feedback information to the transmitter using a feedback resources allocated according to the selected MIMO mode.

    摘要翻译: 提供了一种用于在无线通信系统中支持多个MIMO模式的装置和方法,其中接收机根据接收信号强度,接收机速度,相关性中的至少一个选择多个MIMO模式之一 在发射机和接收机之间,存在或不存在信道质量信息,预编码索引和天线信息,秩和用户数量,以对应于所选MIMO模式的传输格式生成反馈信息,并且发送 使用根据所选MIMO模式分配的反馈资源将反馈信息发送给发射机。

    System and method for allocating a channel in a communication system
    83.
    发明授权
    System and method for allocating a channel in a communication system 有权
    用于在通信系统中分配信道的系统和方法

    公开(公告)号:US08014784B2

    公开(公告)日:2011-09-06

    申请号:US11706853

    申请日:2007-02-15

    IPC分类号: H04W72/00 H04B7/00 H04L12/50

    摘要: A method and system for allocating a channel are provided in a communication system including a plurality of Mobile Stations (MSs) and Base Stations (BSs) for providing a communication service to the plurality of MSs. A BS transmits an average Channel Quality Information (CQI) request to MSs. The MSs measure CQI with respect to their channels in response to the request from the BS, compute average CQI from the measured CQI, and transmit the average CQI to the BS. The BS selects a predefined number of MSs according to the average CQI received from the MSs and sets an MS group. The BS transmits a CQI request to the MS group. The MSs of the MS group transmit the CQI to the BS. The BS receives the CQI from the MS group and allocates a channel according to the CQI.

    摘要翻译: 在包括用于向多个MS提供通信服务的多个移动站(MS)和基站(BS)的通信系统中提供了用于分配信道的方法和系统。 BS向MS发送平均信道质量信息(CQI)请求。 MS响应于来自BS的请求测量相对于它们的信道的CQI,从测量的CQI计算平均CQI,并将平均CQI发送到BS。 BS根据从MS接收到的平均CQI来选择预定数量的MS,并设置MS组。 BS向MS组发送CQI请求。 MS组的MS向BS发送CQI。 BS从MS组接收CQI,并根据CQI分配信道。

    Transmitting and receiving apparatus for supporting transmit antenna diversity using space-time block code
    85.
    发明授权
    Transmitting and receiving apparatus for supporting transmit antenna diversity using space-time block code 有权
    使用时空块码支持发射天线分集的发射和接收装置

    公开(公告)号:US07889814B2

    公开(公告)日:2011-02-15

    申请号:US11804126

    申请日:2007-05-17

    IPC分类号: H04L27/06

    摘要: A transmitter and a receiver are disclosed herein that support transmit antenna diversity using space-time block coding in a wireless communication system. The transmitter produces symbol combinations containing, as their elements, input symbols, the inversions and conjugates of the symbols, and symbols obtained by rotating the phases of the symbols once, forms a matrix having symbols in at least two columns orthogonal to each other with the symbol combinations, and transmits the matrix. The receiver detects symbols that minimize maximum likelihood (ML) decoding metrics over all possible symbols using channel gains from transmit antennas to a receive antenna. Also, the receiver selects candidate symbols among all possible symbols according to the characteristics of transmitted modulation symbols and detects symbols that minimize the ML decoding metrics.

    摘要翻译: 本文公开的发射器和接收器在无线通信系统中支持使用空时块编码的发射天线分集。 发射机产生符号组合,其包含输入符号,符号的反转和共轭以及通过旋转符号的相位获得的符号一次作为其元素,形成具有彼此正交的至少两列中的符号的矩阵, 符号组合,并传输矩阵。 接收机通过使用从发射天线到接收天线的信道增益,检测所有可能符号上的最大似然(ML)解码度量的符号。 此外,接收机根据发送的调制符号的特性来选择所有可能符号中的候选符号,并且检测使ML解码度量最小化的符号。

    Method of operating a TDD/virtual FDD hierarchical cellular telecommunication system
    86.
    发明授权
    Method of operating a TDD/virtual FDD hierarchical cellular telecommunication system 有权
    操作TDD /虚拟FDD分级蜂窝电信系统的方法

    公开(公告)号:US07817592B2

    公开(公告)日:2010-10-19

    申请号:US11030397

    申请日:2005-01-06

    IPC分类号: H04W4/00

    CPC分类号: H04W16/32 H04W16/28

    摘要: A cellular communication system and method supporting both a time division duplexing (TDD) scheme and a frequency division duplexing (FDD) scheme. The apparatus includes a plurality of mobile stations, at least three first fixed stations communicate with the mobile station based on the FDD scheme, the first fixed station defining respective macro cells that are contiguous and form a virtual cell, and a cluster including at least one second fixed station communicating with the mobile stations based on the TDD scheme, the second fixed station defining a micro cell in the virtual cell.

    摘要翻译: 一种支持时分双工(TDD)方案和频分双工(FDD)方案的蜂窝通信系统和方法。 所述装置包括多个移动站,至少三个第一固定站基于所述FDD方案与所述移动站进行通信,所述第一固定站定义相邻的宏小区,并且形成虚拟小区,以及包括至少一个 第二固定站基于TDD方案与移动站通信,第二固定站在虚拟小区中定义微小区。

    Method for puncturing a low density parity check code
    87.
    发明授权
    Method for puncturing a low density parity check code 有权
    打孔低密度奇偶校验码的方法

    公开(公告)号:US07734988B2

    公开(公告)日:2010-06-08

    申请号:US11541749

    申请日:2006-10-02

    IPC分类号: H03M13/35

    摘要: A method for puncturing a Low Density Parity Check (LDPC). The method includes a) setting a codeword length and the total number of bit nodes to be punctured; b) selecting a check node (or check nodes) with highest priority excluding check nodes completely checked in a current round; c) selecting a bit node (or bit nodes) with a highest priority excluding bit nodes completely checked among bit nodes connected to the selected check node (or check nodes); d) determining whether the selected bit node is a bit node to be punctured, that is, it is not systematic, not set by a puncturing prohibition flag; e) puncturing an associated bit node if the selected bit node is the bit node to be punctured, setting unpunctured bit nodes connected to the selected check node by a puncturing prohibition flag, decreasing the number of remained bit nodes to be punctured by 1 and increasing the number of connected punctured node of associated check node by 1; f) determining whether the number of remaining bits to be punctured is greater than 0; and g) returning to step b) if the number of remaining bits to be punctured is greater than 0, and ending a puncturing process if the number of remaining bits to be punctured is not greater than 0.

    摘要翻译: 一种用于打孔低密度奇偶校验(LDPC)的方法。 该方法包括:a)设置码字长度和要被穿孔的比特节点的总数; b)选择具有最高优先级的校验节点(或校验节点),不包括在当前轮次中完全检查的校验节点; c)选择具有最高优先级的比特节点(或比特节点),不包括连接到所选择的校验节点(或校验节点)的比特节点之间完全检查的比特节点; d)确定所选择的比特节点是否是要被穿孔的比特节点,即,它不是系统的,不被打孔禁止标志设置; e)如果选择的比特节点是要被穿孔的比特节点,则对相关联的比特节点进行穿孔,通过打孔禁止标志来设置连接到所选择的校验节点的未穿孔比特节点,将要被穿孔的剩余比特节点的数量减少1并增加 相关检查节点的连接穿孔节点数目为1; f)确定要穿孔的剩余比特数是否大于0; 以及g)如果要删除的剩余比特数大于0,则返回到步骤b),并且如果要穿孔的剩余比特数不大于0,则结束打孔处理。

    Frame structures, method and apparatus for resource allocation in wireless communications system based on full duplex replay
    88.
    发明申请
    Frame structures, method and apparatus for resource allocation in wireless communications system based on full duplex replay 有权
    基于全双工重播的无线通信系统资源分配的帧结构,方法和装置

    公开(公告)号:US20090147706A1

    公开(公告)日:2009-06-11

    申请号:US12313569

    申请日:2008-11-21

    IPC分类号: H04W4/00 H04B7/00

    摘要: Frame structures, a method and an apparatus for resource allocation in a wireless communication system based on a full duplex relay are provided. The method for a centralized resource allocation in the wireless communication system based on the full duplex relay includes receiving channel information from a plurality of mobile stations (MSs) and relay stations (RSs); scheduling radio resources for a link between a base station (BS) and the MS and a link between the BS and the RS using the channel quality; constituting a first radio resource region for the link between the BS and the RS and a second radio resource region for the link between the BS and the MS; and scheduling radio resource for a link between the RS and the MS by reusing the first radio resource region. The relay link resource is reused in the full-duplex relay structure, and the system capacity can be raised by minimizing the interference in the resource utilization.

    摘要翻译: 提供了一种基于全双工继电器的无线通信系统中的资源分配的框架结构,方法和装置。 基于全双工中继的无线通信系统中的集中资源分配方法包括从多个移动站(MS)和中继站(RS)接收信道信息; 使用信道质量调度用于基站(BS)和MS之间的链路的无线电资源以及BS与RS之间的链路; 构成用于BS与RS之间的链路的第一无线资源区域和用于BS与MS之间链路的第二无线资源区域; 以及通过重用所述第一无线资源区域来调度所述RS与所述MS之间的链路的无线资源。 中继链路资源在全双工中继结构中重用,可以通过最小化资源利用中的干扰来提高系统容量。

    Apparatus and method for hybrid automatic repeat request (HARQ) in wireless communication system
    89.
    发明申请
    Apparatus and method for hybrid automatic repeat request (HARQ) in wireless communication system 有权
    无线通信系统中混合自动重传请求(HARQ)的装置和方法

    公开(公告)号:US20090097586A1

    公开(公告)日:2009-04-16

    申请号:US12287104

    申请日:2008-10-06

    IPC分类号: H04B7/02

    摘要: A Multiple-Input Multiple-Output (MIMO) wireless communication system is provided. A receiving end includes a selector for selecting at least one stream for a MultiUser (MU) mode; a first generator for generating per stream channel quality information for the at least one selected stream as at least one candidate for channel information for the MU mode; and a determiner for determining one per stream channel quality information of the candidates as channel information for the MU mode.

    摘要翻译: 提供了多输入多输出(MIMO)无线通信系统。 接收端包括用于为多用户(MU)模式选择至少一个流的选择器; 第一发生器,用于生成用于所述至少一个所选流的每流信道质量信息,作为所述MU模式的信道信息的至少一个候选; 以及确定器,用于确定候选的一个每个流信道质量信息作为MU模式的信道信息。

    Apparatus and method for transmitting/receiving a pilot sequence in a mobile communication system using space-time trellis code
    90.
    发明授权
    Apparatus and method for transmitting/receiving a pilot sequence in a mobile communication system using space-time trellis code 有权
    在使用时空网格码的移动通信系统中发送/接收导频序列的装置和方法

    公开(公告)号:US07480339B2

    公开(公告)日:2009-01-20

    申请号:US10695579

    申请日:2003-10-28

    IPC分类号: H04B7/02 H03D1/00

    摘要: A mobile communication system includes M transmission antennas, P encoders for receiving P information bit streams and encoding the received information bit streams with a space-time trellis code (STTC), and M modulators for modulating information bit streams output from the P encoders in a predetermined modulation scheme and outputting modulation symbol streams. A sequence used for channel estimation is generated, and the sequence is transmitted in substitute for at least one modulation symbol in a predetermined position through the M transmission antennas, for each of the modulation symbol streams output from the M modulators.

    摘要翻译: 一种移动通信系统包括:M个发送天线,用于接收P个信息比特流的P编码器,并用空时格码(STTC)对接收到的信息比特流进行编码; M个调制器,用于调制从P编码器输出的信息比特流 预定调制方案并输出调制符号流。 产生用于信道估计的序列,并且对于从M个调制器输出的每个调制符号流,通​​过M个发送天线,发送该序列以代替预定位置中的至少一个调制符号。