Method and device for controlling signal clipping in a discrete multi-tone communications system
    2.
    发明授权
    Method and device for controlling signal clipping in a discrete multi-tone communications system 失效
    用于在离散多音通信系统中控制信号限幅的方法和装置

    公开(公告)号:US06366555B1

    公开(公告)日:2002-04-02

    申请号:US09083794

    申请日:1998-05-22

    IPC分类号: H04J1100

    摘要: A method of controlling the transmission amplitude of signals in a DMT communications system limited by a predefined dynamic range is disclosed. A block of bits is converted to a set of M constellation points in the fourier domain. The M constellation points are then mapped to a set of N complex points, wherein M is less than N, the N complex fitting within transmission subspace of the dynamic range of the system.

    摘要翻译: 公开了一种控制由预定动态范围限制的DMT通信系统中的信号的传输幅度的方法。 一个比特块被转换成一个在四元域中的一个M个星座点。 然后将M个星座点映射到一组N个复点,其中M小于N,N系统拟合在系统的动态范围的传输子空间内。

    Methods and device for estimating and correcting clipping in a discrete multi-tone communications system
    3.
    发明授权
    Methods and device for estimating and correcting clipping in a discrete multi-tone communications system 失效
    用于在离散多音通信系统中估计和校正限幅的方法和装置

    公开(公告)号:US06363109B1

    公开(公告)日:2002-03-26

    申请号:US09076418

    申请日:1998-05-12

    IPC分类号: H04B138

    摘要: A method for obtaining a reliable estimate of the transmitter clipping error compliant with T1.413 ADSL standard is disclosed. An architecture is disclosed that uses the clipping error estimate at the receiver to reconstruct a frequency-domain compensation signal. The method for computing the compensation signal is disclosed along with an asymmetric digital subscriber line modem supporting T1.413 standard transmission/reception functions over a discrete multi-tone communications system capable of estimating clipping errors and computing clipping compensation signals.

    摘要翻译: 公开了一种用于获得符合T1.413 ADSL标准的发射机限幅误差的可靠估计的方法。 公开了一种结构,其使用接收机处的限幅误差估计来重建频域补偿信号。 公开了一种用于计算补偿信号的方法以及支持T1.413标准发送/接收功能的非对称数字用户线路调制解调器,该分立多音调通信系统能够估计削波误差并计算削波补偿信号。

    Wireless communications system with cycling of unique cell bit sequences in station communications
    5.
    发明授权
    Wireless communications system with cycling of unique cell bit sequences in station communications 有权
    无线通信系统,在站通信中具有独特的小区位序列循环

    公开(公告)号:US08107420B2

    公开(公告)日:2012-01-31

    申请号:US12034534

    申请日:2008-02-20

    IPC分类号: H04W4/00

    CPC分类号: H04B7/2656

    摘要: A wireless communication system (10). The system comprises transmitter circuitry (BST1) comprising circuitry for transmitting a plurality of frames to a receiver in a first cell (Cell 1). Each of the plurality of frames comprises a bit group (22), and the bit group uniquely distinguishes the first cell from a second cell (Cell 2) adjacent the first cell. The transmitter circuitry further comprises circuitry (54) for inserting a bit sequence into the bit group. The bit sequence is selected from a plurality of bit sequences (S1-SK) such that successive transmissions by the transmitter circuitry comprise a cycle of successive ones of the plurality of bit sequences.

    摘要翻译: 一种无线通信系统(10)。 该系统包括发射机电路(BST1),包括用于将第一小区(小区1)中的多个帧发射到接收机的电路。 多个帧中的每一个包括位组(22),并且该位组将第一单元与第一单元相邻的第二单元(单元2)唯一区分开。 发射机电路还包括用于将比特序列插入到比特组中的电路(54)。 从多个比特序列(S1-SK)中选择比特序列,使得发射机电路的连续传输包括多个比特序列中的连续的一个比特序列的周期。

    INTEGRATED CIRCUITS, SYSTEMS, APPARATUS, PACKETS AND PROCESSES UTILIZING PATH DIVERSITY FOR MEDIA OVER PACKET APPLICATIONS
    6.
    发明申请
    INTEGRATED CIRCUITS, SYSTEMS, APPARATUS, PACKETS AND PROCESSES UTILIZING PATH DIVERSITY FOR MEDIA OVER PACKET APPLICATIONS 有权
    集成电路,系统,设备,分组和处理使用分组应用程序中的媒体路径多样性

    公开(公告)号:US20100091800A1

    公开(公告)日:2010-04-15

    申请号:US12638578

    申请日:2009-12-15

    IPC分类号: H04L29/02

    摘要: In one form of the invention, a process of sending real-time information from a sender computer (103) to a receiver computer (105) coupled to the sender computer (103) by a packet network (100) wherein packets (111,113) sometimes become lost, includes steps of directing (441) packets (111) containing the real-time information from the sender computer (103) by at least one path (119) in the packet network (100) to the receiver computer (105), and directing packets (113) containing information dependent on the real-time information from the sender computer (103) by at least one path diversity path (117) in the packet network (100) to the same receiver computer (105). Other forms of the invention encompass other processes, improved packets and packet ensembles (111,113), integrated circuits (610), chipsets (DSP 1721, MCU), computer cards (1651), information storage articles (1511,1611), systems, computers (103,105), gateways (191,193), routers (131,133), cellular telephone handsets (181,189), wireless base stations (183,187), appliances (1721,1731,1741), and packet networks (100), and other forms as disclosed and claimed.

    摘要翻译: 在本发明的一种形式中,发送计算机(103)将实时信息发送到分组网络(100)耦合到发送方计算机(103)的接收机(105)的过程,其中分组(111,113)有时 包括将包含来自发送者计算机(103)的实时信息的分组(441)通过分组网络(100)中的至少一个路径(119)引导到接收机计算机(105)的步骤, 以及将分组网络(100)中的至少一个路径分集路径(117)包含取决于来自发送者计算机(103)的实时信息的信息的分组(113)导向到同一接收机计算机(105)。 本发明的其他形式包括其他过程,改进的分组和分组集合(111,113),集成电路(610),芯片组(DSP1721,MCU),计算机卡(1651),信息存储产品(1511,1611),系统,计算机 (103,105),网关(191,193),路由器(131,133),蜂窝电话手机(181,189),无线基站(183,187),设备(1721,1731,1741)和分组网络(100) 声称。

    Wireless Communications System With Cycling Of Unique Cell Bit Sequences In Station Communications
    8.
    发明申请
    Wireless Communications System With Cycling Of Unique Cell Bit Sequences In Station Communications 有权
    无线通信系统在站通信中循环独特的小区位序列

    公开(公告)号:US20080170638A1

    公开(公告)日:2008-07-17

    申请号:US12034534

    申请日:2008-02-20

    IPC分类号: H04L27/00

    CPC分类号: H04B7/2656

    摘要: A wireless communication system (10). The system comprises transmitter circuitry (BST1) comprising circuitry for transmitting a plurality of frames to a receiver in a first cell (Cell 1). Each of the plurality of frames comprises a bit group (22), and the bit group uniquely distinguishes the first cell from a second cell (Cell 2) adjacent the first cell. The transmitter circuitry further comprises circuitry (54) for inserting a bit sequence into the bit group. The bit sequence is selected from a plurality of bit sequences (S1-SK) such that successive transmissions by the transmitter circuitry comprise a cycle of successive ones of the plurality of bit sequences.

    摘要翻译: 一种无线通信系统(10)。 该系统包括发射机电路(BST 1),包括用于向第一小区(小区1)中的接收机发送多个帧的电路。 多个帧中的每一个包括位组(22),并且该位组将第一单元与第一单元相邻的第二单元(单元2)区分开。 发射机电路还包括用于将比特序列插入到比特组中的电路(54)。 该比特序列是从多个比特序列中选择的,使得发射机电路的连续传输包括多个 位序列。

    Code division multiple access wireless system with time reversed space time block transmitter diversity
    9.
    发明授权
    Code division multiple access wireless system with time reversed space time block transmitter diversity 有权
    码分多址无线系统具有时间反转空间时间块发射机多样性

    公开(公告)号:US07154958B2

    公开(公告)日:2006-12-26

    申请号:US09885878

    申请日:2001-06-20

    IPC分类号: H04B7/06

    摘要: A wireless communication network (10) includes a wireless transmitter having a plurality of antennas (AT11, AT12). The transmitter includes for each of a plurality of different user channels (Dn), circuitry (22n) for providing a plurality of groups of symbols in a first symbol group sequence (D1n). Each of the plurality of different user channels includes circuitry (241n) for forming a first modulated symbol group sequence for the user channel by modulating the symbols in the first symbol group sequence with a unique code that corresponds to the user channel and distinguishes the user channel from each other of the plurality of different user channels and circuitry (261) for combining the first modulated symbol group sequences for transmission by a first antenna (AT11). Each of the plurality of different user channels includes circuitry (22n) for forming a second symbol group sequence (D2n) by time reversing symbols in at least some of the groups of symbols.

    摘要翻译: 无线通信网络(10)包括具有多个天线(AT 1> 1,AT 1 2 N 2)的无线发射机。 发射机包括用于多个不同用户信道(D S)中的每一个,用于在第一符号组序列中提供多个符号组的电路(22) (D n> n)。 多个不同用户信道中的每一个包括用于通过调制第一符号组中的符号来形成用于用户信道的第一调制符号组序列的电路(24< n0> n) 序列,其具有对应于用户信道的唯一代码,并且将用户信道与多个不同用户信道中的用户信道和电路(26 1)进行区分,用于组合用于传输的第一调制符号组序列 第一天线(AT 1 1 1)。 多个不同的用户信道中的每一个包括用于通过时间反转来形成第二符号组序列(D 2> n )的电路(22 ) 符号中的至少一些符号组。