BROADCASTING COMMUNICATION IN A WIRELESS COMMUNICATION SYSTEM
    1.
    发明申请
    BROADCASTING COMMUNICATION IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
    无线通信系统中的广播通信

    公开(公告)号:US20110292858A1

    公开(公告)日:2011-12-01

    申请号:US13125441

    申请日:2009-10-23

    CPC classification number: H04W72/005 H04B1/7073 H04J13/0044

    Abstract: A method for supporting broadcast transmissions and unicast communications in a wireless communication system is described. The method comprises supporting unicast communication in a first mode of operation wherein at least one unicast data transmission unit is encoded and communicated within a time-continuous sub-frame of a first length and a first number of timeslots. The method further comprises supporting broadcast transmission in a second mode of operation, wherein at least one broadcast data transmission unit is encoded communicated over a time period that comprises a discontinuous plurality of the time-continuous sub-frames of the first length.

    Abstract translation: 描述了一种在无线通信系统中支持广播传输和单播通信的方法。 该方法包括在第一操作模式中支持单播通信,其中至少一个单播数据传输单元被编码并在第一长度和第一数量的时隙的时间连续的子帧内传送。 该方法还包括在第二操作模式中支持广播传输,其中至少一个广播数据传输单元被编码在包括第一长度的不连续多个时间连续子帧的时间段内传送。

    Arrangement and method for sequence production in a spread spectrum communication system
    2.
    发明授权
    Arrangement and method for sequence production in a spread spectrum communication system 有权
    扩频通信系统中序列生成的布置和方法

    公开(公告)号:US07792179B2

    公开(公告)日:2010-09-07

    申请号:US10532162

    申请日:2003-11-03

    CPC classification number: H04J13/107 H04B2201/70701

    Abstract: An efficient scheme for CDMA coding constructs codes by generating longer code sequences (430) via concatenation, from an existing set of short sequences (410, 420). The sequences may be spreading, scrambling and or training or channel estimation (such as midamble) sequences. The invention allows extension of sequences without performing an exhaustive search for sequences with optimal desired properties, as well as extension of the sequence duration to improve the detection of wanted signals via the use of a conventional matched filter, a multi-user detector or an adaptive filter/equaliser.

    Abstract translation: 用于CDMA编码的有效方案通过从现有的一组短序列(410,420)通过级联产生更长的码序列(430)构成码。 序列可以是扩展,加扰和/或训练或信道估计(例如中间码)序列。 本发明允许扩展序列而不执行穷尽搜索具有最佳期望属性的序列,以及延长序列持续时间以通过使用常规匹配滤波器,多用户检测器或自适应滤波器来改善所需信号的检测 过滤器/均衡器。

    Quasi synchronous transmission in cellular networks
    3.
    发明授权
    Quasi synchronous transmission in cellular networks 有权
    蜂窝网络中的准同步传输

    公开(公告)号:US07711008B2

    公开(公告)日:2010-05-04

    申请号:US11338062

    申请日:2006-01-23

    CPC classification number: H04B7/269 H04H20/18 H04H20/67

    Abstract: Aspects of the invention include a root node of a wireless communication infrastructure that buffers data packets for transmission by base stations over an air interface. The root node determines a time delay for transmission of a data packet from the root node to each base station, a maximum time delay of those time delays, and a timing latency based upon the maximum time delay. The root node transmits the timing latency to the base stations. In response, each base station initiates transmission of data packets received by the root node after expiration of the timing latency. Alternatively, the root node, instead of the base stations, may buffer the data packets, and transmit them so that they arrive at the base stations at substantially the same time.

    Abstract translation: 本发明的方面包括缓冲用于基站通过空中接口传输的数据分组的无线通信基础设施的根节点。 根节点确定用于从根节点向每个基站传输数据分组的时间延迟,那些时间延迟的最大时间延迟以及基于最大时延的定时等待时间。 根节点向基站发送定时等待时间。 作为响应,每个基站在定时等待时间到期之后发起由根节点接收的数据分组的传输。 或者,根节点(而不是基站)可以缓冲数据分组,并且发送它们使得它们在基本相同的时间到达基站。

    MULTI-USER DETECTOR AND METHOD FOR USE IN A COMMUNICATION SYSTEM
    4.
    发明申请
    MULTI-USER DETECTOR AND METHOD FOR USE IN A COMMUNICATION SYSTEM 有权
    多用户检测器和用于通信系统的方法

    公开(公告)号:US20090054060A1

    公开(公告)日:2009-02-26

    申请号:US11596795

    申请日:2005-05-10

    CPC classification number: H04B1/7107 H04B1/7105 H04B2201/70702

    Abstract: A multi-user detector (200) and method (300) for use in a cellular CDMA system (100) based on: estimating (210) spare code resource available in a first cell of the system; selecting (220) at least a second cell neighbouring the first cell; selecting (230) from codes associated with the second cell at least one additional code; and performing (240) multi-user detection processing in the first cell with the at least one additional code. On the downlink, codes from other users in the same cell may be treated with the same level of priority as those of users from neighbour cells, codes allocated to the UE having the highest priority; on the uplink, codes of all users in the same cell may have the same priority which is higher than that of neighbour cell users. This provides the advantage(s) that multi-user detector capacity arising from operating under high interference conditions is employed to accommodate users from neighbour cells, with the result that both intracell and intercell interference may be mitigated.

    Abstract translation: 一种用于在蜂窝CDMA系统(100)中使用的多用户检测器(200)和方法(300),其基于:估计(210)所述系统的第一小区中可用的备用码资源; 选择(220)与所述第一小区相邻的至少第二小区; 从与所述第二小区相关联的代码中选择(230)至少一个附加代码; 以及利用所述至少一个附加代码在所述第一小区中执行(240)多用户检测处理。 在下行链路中,来自相同小区中的来自其他用户的代码可以以与来自相邻小区的用户相同的优先级来处理,分配给具有最高优先级的UE的代码; 在上行链路上,相同小区中的所有用户的代码可能具有比邻居小区用户高的优先级。 这提供了用于在高干扰条件下操作产生的多用户检测器容量以适应来自相邻小区的用户的优点,从而可以减轻小区和小区间干扰。

    Code division multiple access receiver
    5.
    发明授权
    Code division multiple access receiver 有权
    码分多址接收机

    公开(公告)号:US07369601B2

    公开(公告)日:2008-05-06

    申请号:US10279698

    申请日:2002-10-24

    CPC classification number: H04J13/0044 H04B1/707 H04B2201/70705 H04J13/20

    Abstract: Processing of a received code division multiple access, CDMA, burst (405) when a spreading factor of the CDMA burst (405) has been changed from an allocated spreading factor (SF0) to a new spreading factor (SFn). The received burst (405) is processed with a CDMA detector (310), using the allocated spreading factor (SF0), to provide a CDMA detector output; the new spreading factor (SFn) of the burst is determined; and the CDMA detector output is decimated by a factor determined from the new spreading factor (SFn). The decimator may be a FIR decimator (315) and tap weights may be determined using the values of the new spreading factor (SFn) and the allocated spreading factor (SF0). Application in a Node B (150A) of a UMTS system (100), particularly in UTRA TDD mode, for processing received uplink communication is described.

    Abstract translation: 当CDMA突发(405)的扩频因子已经从分配的扩频因子(SF <0> 0)改变到新的扩频因子时,对接收的码分多址,CDMA,突发(405)进行处理 (SF N)。 使用所分配的扩频因子(SF <0> 0),用CDMA检测器(310)处理所接收的突发(405),以提供CDMA检测器的输出; 确定突发的新扩频因子(SF N ); 并且CDMA检测器输出被从新的扩展因子(SF N n N)确定的因子抽取。 抽取器可以是FIR抽取器(315),并且抽头权重可以使用新的扩展因子(SF N n N)和所分配的扩展因子(SF&lt; N&gt; )。 描述了在UMTS系统(100)的节点B(150A)中的应用,特别是在UTRA TDD模式中用于处理接收到的上行链路通信的应用。

    Selection of training sequences for multiple-in multiple-out transmissions
    6.
    发明授权
    Selection of training sequences for multiple-in multiple-out transmissions 有权
    多输入多输出传输的训练序列的选择

    公开(公告)号:US08681891B2

    公开(公告)日:2014-03-25

    申请号:US13230404

    申请日:2011-09-12

    Abstract: A cellular communication system Multiple-In Multiple-Out, MIMO, transmitter includes a plurality of antennas, a selector that selects training sequences for messages, a generator that generates messages including selected training sequences, and a transmitter that transmits the messages on the plurality of antennas. The selector selects a training sequence for a message from a set of training sequences in response to an associated antenna on which the message is to be transmitted. The set of training sequences is associated with a cell of the MIMO transmitter and includes disjoint subsets of training sequences for each of the plurality of antennas.

    Abstract translation: 蜂窝通信系统多输入多输出MIMO发射机包括多个天线,选择消息的训练序列,生成包括所选择的训练序列的消息的发生器,以及在多个天线中发送消息的发射机 天线。 选择器响应于要在其上发送消息的关联天线从一组训练序列中选择用于消息的训练序列。 所述训练序列集合与所述MIMO发射机的小区相关联,并且包括所述多个天线中的每一个的训练序列的不相交子集。

    Selection of training sequences for multiple-in multiple-out transmissions
    7.
    发明授权
    Selection of training sequences for multiple-in multiple-out transmissions 有权
    多输入多输出传输的训练序列的选择

    公开(公告)号:US08045599B2

    公开(公告)日:2011-10-25

    申请号:US11061958

    申请日:2005-02-17

    Abstract: A cellular communication system comprises a Multiple-In Multiple-Out, MIMO, transmitter (101) and receiver (103). The MIMO transmitter (101) comprises a message generator (303) for generating MIMO messages comprising selected training sequences and transceivers (305, 307, 309) transmitting the messages on a plurality of antennas (311, 313, 315). The training sequences are selected by a midamble selector (317) from a set of training sequences in response to an associated antenna on which the message is to be transmitted. The set of training sequences is associated with the cell of the MIMO transmitter and comprises disjoint subsets of training sequences for each of the plurality of antennas. The receiver (103) comprises a transmit antenna detector (419) which determines which antenna of the MIMO transmitter the message is transmitted from in response to the training sequence of the received message.

    Abstract translation: 蜂窝通信系统包括多输入多输出MIMO,发射机(101)和接收机(103)。 MIMO发射机(101)包括消息发生器(303),用于生成包含选择的训练序列的MIMO消息和在多个天线(311,313,315)上发射消息的收发机(305,307,309)。 训练序列由中间码选择器(317)从一组训练序列中选择,响应于要在其上发送消息的关联天线。 所述训练序列集合与所述MIMO发射机的小区相关联,并且包括所述多个天线中的每一个的训练序列的不相交子集。 接收器(103)包括发射天线检测器(419),其响应于接收到的消息的训练序列确定MIMO发射机的哪个天线发送消息。

    Method and Arrangement for Mitigation of Intercell Interference in a Cellular Communication System
    8.
    发明申请
    Method and Arrangement for Mitigation of Intercell Interference in a Cellular Communication System 有权
    蜂窝通信系统间干扰干扰的方法与安排

    公开(公告)号:US20110142011A1

    公开(公告)日:2011-06-16

    申请号:US13032210

    申请日:2011-02-22

    CPC classification number: H04B1/7105 H04B1/70735 H04B2201/70702

    Abstract: A method (400) and arrangement (200) for mitigation of intercell and intracell interference in a 3GPP cellular communication system (100) by, in a receiver in a cell of the system, deriving for a first channel in the cell a signal, representative of first channel transfer function (A(1)); deriving for at least a second channel originating in a different cell a signal (A(2 . . . M)), representative of second channel transfer function, based on: deriving a cell specific scrambling code (s), deriving a channel impulse response (h), and deriving a channelisation code (c); and performing multi-user detection using the first and second signals. Where the channelisation code is unknown, a substitute channelisation code is preferably substituted. It will be appreciated that the technique can be applied to both downlink and uplink. This provides the advantage that both intra-cell interference and intercell interference are mitigated.

    Abstract translation: 一种用于在3GPP蜂窝通信系统(100)中通过在系统的小区中的接收机中缓解小区内的小区间干扰和小区间干扰的方法(400)和装置(200),为小区中的第一信道导出信号,代表 的第一通道传递函数(A(1)); 基于:导出小区特定扰码,导出表示第二信道传递函数的信号(A(2 ... M)),导出信道脉冲响应 (h),并导出信道化码(c); 以及使用第一和第二信号执行多用户检测。 在信道化代码未知的情况下,优选地替换替代信道化码。 应当理解,该技术可以应用于下行链路和上行链路两者。 这提供了细胞间干扰和小区间干扰都被减轻的优点。

    Quasi Synchronous Transmission in Cellular Networks
    9.
    发明申请
    Quasi Synchronous Transmission in Cellular Networks 有权
    蜂窝网络中的准同步传输

    公开(公告)号:US20100215014A1

    公开(公告)日:2010-08-26

    申请号:US12770312

    申请日:2010-04-29

    CPC classification number: H04B7/269 H04H20/18 H04H20/67

    Abstract: Aspects of the invention include a root node of a wireless communication infrastructure that buffers data packets for transmission by base stations over an air interface. The root node determines a time delay for transmission of a data packet from the root node to each base station, a maximum time delay of those time delays, and a timing latency based upon the maximum time delay. The root node transmits the timing latency to the base stations. In response, each base station initiates transmission of data packets received by the root node after expiration of the timing latency. Alternatively, the root node, instead of the base stations, may buffer the data packets, and transmit them so that they arrive at the base stations at substantially the same time.

    Abstract translation: 本发明的方面包括缓冲用于基站通过空中接口传输的数据分组的无线通信基础设施的根节点。 根节点确定用于从根节点向每个基站传输数据分组的时间延迟,那些时间延迟的最大时间延迟以及基于最大时延的定时等待时间。 根节点向基站发送定时等待时间。 作为响应,每个基站在定时等待时间到期之后发起由根节点接收的数据分组的传输。 或者,根节点(而不是基站)可以缓冲数据分组,并且发送它们使得它们在基本相同的时间到达基站。

    Encoder and method for efficient synchronisation channel encoding in UTRA TDD mode
    10.
    发明授权
    Encoder and method for efficient synchronisation channel encoding in UTRA TDD mode 有权
    用于在UTRA TDD模式中高效同步信道编码的编码器和方法

    公开(公告)号:US07301930B2

    公开(公告)日:2007-11-27

    申请号:US10241966

    申请日:2002-09-12

    Abstract: An encoder and method for efficient synchronization channel encoding in UTRA TDD mode by: producing a codeword a, where a=dG+z modulo-2, where d represents a predetermined code group to be encoded, G represents a predetermined generator matrix, and z represents a function of the code group number and a row of the generator matrix; producing values sk=2a2k+1+ak;k=0, 1, 2, 3, and associated values b0,b1,b2; and producing a value Sssc associated with the code group, where Sssc=(b0cπ(0),b1cπ(1),b2cπ(2)), cπ represents a code within the code group, and b0,b1,b2ε(±1,±j). This provides an efficient encoding architecture for the synchronization channel in UTRA TDD mode; and, in addition, by simple manipulation of the generation matrix, a higher chip rate signal may be signalled while still preserving the signalling information for the lower chip rate.

    Abstract translation: 一种用于在UTRA TDD模式中有效同步信道编码的编码器和方法,其通过以下步骤:产生码字a,其中a = dG + z modulo-2,其中d表示要编码的预定码组,G表示预定的生成矩阵,z表示z 表示代码组编号和生成矩阵行的函数; k = 0,1,2,3,以及相关联的值b pi 表示代码组内的代码,并且b&lt; 0&gt;,b&lt; 1&gt;,2&lt; 2&epsiv; ±j)。 这为UTRA TDD模式中的同步信道提供了有效的编码架构; 另外,通过对生成矩阵的简单操作,可以发信号通知较高的码片速率信号,同时仍然保留较低码片速率的信令信息。

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