Method and system for adapting an effective spreading sequence in a communication system using direct sequence spreading
    1.
    发明授权
    Method and system for adapting an effective spreading sequence in a communication system using direct sequence spreading 有权
    用于使用直接序列扩展在通信系统中适应有效扩展序列的方法和系统

    公开(公告)号:US08018833B2

    公开(公告)日:2011-09-13

    申请号:US12721840

    申请日:2010-03-11

    IPC分类号: H04J11/00 H04B7/216 H04B1/00

    摘要: A method and system for adapting an effective spreading sequence in a wire-line or a wireless communication system using direct sequence spreading system is described. A station of the communication system determines a state of a communication channel, represented by, e.g., an impulse response, a step response, or any other characteristic known to one skilled in the art. The station determines the channel state by measurements of a received signal or by receiving a feedback signal comprising an information enabling the station to determine the plurality of linearly related phases The station then determines a plurality of linearly related phases in accordance with the state of the communication channel, and then applies at least one of the plurality of linearly related phases to at least one sample of the effective spreading sequence.

    摘要翻译: 描述了使用直接序列扩展系统在有线或无线通信系统中适配有效扩展序列的方法和系统。 通信系统的站确定由例如脉冲响应,阶跃响应或本领域技术人员已知的任何其它特征所表示的通信信道的状态。 该站通过测量接收到的信号来确定信道状态,或者通过接收包括使得站能够确定多个线性相关相位的信息的反馈信号。然后,站根据通信的状态确定多个线性相关相位 通道,然后将多个线性相关相中的至少一个应用于有效扩展序列的至少一个采样。

    Multistage despreading of spread spectrum communications signals
    2.
    发明授权
    Multistage despreading of spread spectrum communications signals 有权
    扩频通信信号的多级解扩

    公开(公告)号:US07724719B2

    公开(公告)日:2010-05-25

    申请号:US10595008

    申请日:2003-06-18

    IPC分类号: H04B7/216

    摘要: A method and a component for despreading a multi-code signal that has been generated using two or more spreading codes with different spreading factors are described. The method comprises subjecting the signal to a first despreading step (40) that includes a first Fast Hadamard Transform (FHT) to jointly despread the spreading codes. During the first despreading step one or more spreading codes are despread only partially. The signal or signal portion including one or more partially despread spreading codes are then subjected to one or more further despreading steps (42).

    摘要翻译: 描述了用于使用具有不同扩频因子的两个或多个扩展码产生的多码信号进行解扩的方法和组件。 该方法包括对信号进行包括第一快速哈达玛变换(FHT)的第一解扩展步骤(40)以共同解扩展扩展码。 在第一解扩步骤期间,一个或多个扩展码仅部分解扩。 包括一个或多个部分解扩展扩展码的信号或信号部分然后经受一个或多个进一步的解扩步骤(42)。

    Receiver performance control
    3.
    发明授权
    Receiver performance control 有权
    接收机性能控制

    公开(公告)号:US07643841B2

    公开(公告)日:2010-01-05

    申请号:US10544526

    申请日:2003-03-17

    IPC分类号: H04B7/00

    摘要: A method of operating a network node that controls a component of a wireless communications network is described. The network component has a receiver with at least one receiver structure that can assume two or more states, including a first state corresponding to an enhanced receiver performance and a second state corresponding to a reduced receiver performance and a reduced power consumption. The method comprises determining a network condition and, in dependence of the network condition, generating a performance control signal that aims at controlling the state of the receiver structure, and transmitting the performance control signal to the network component. The invention is further directed the performance control signal generated by the network node and the network component which the network node intends to control.

    摘要翻译: 描述了操作控制无线通信网络的组件的网络节点的方法。 网络组件具有至少一个具有至少一个接收机结构的接收机,该接收机结构可以承担两个或多个状态,包括对应于增强的接收机性能的第一状态和对应于减少的接收机性能和降低的功耗的第二状态。 该方法包括确定网络条件,并且根据网络条件产生旨在控制接收机结构的状态的性能控制信号,并将性能控制信号发送到网络组件。 本发明进一步涉及由网络节点和网络节点想要控制的网络组件产生的性能控制信号。

    Dual loop signal quality based link adaptation
    4.
    发明授权
    Dual loop signal quality based link adaptation 有权
    基于双环路信号质量的链路自适应

    公开(公告)号:US07545866B2

    公开(公告)日:2009-06-09

    申请号:US10549275

    申请日:2003-03-17

    IPC分类号: H04L27/00

    摘要: A communications link is adapted based on a quality estimate for a signal transmitted via the communications link. The method comprises receiving and demodulating the transmitted signal, assessing the demodulated signal to derive a first estimate for the signal quality that is to be used in a link adaptation scheme, and further processing and decoding the demodulated signal. Based on at least one of the further processed, non-decoded signal and information obtained prior to conclusion of decoding, a first control signal indicative of the signal quality is generated and utilized to control the link adaptation scheme.

    摘要翻译: 基于通过通信链路发送的信号的质量估计来调整通信链路。 该方法包括接收和解调所发送的信号,评估解调信号以导出在链路自适应方案中要使用的信号质量的第一估计,以及进一步处理和解码解调信号。 基于在解码结束之前获得的进一步处理的未解码信号和信息中的至少一个,产生指示信号质量的第一控制信号并用于控制链路自适应方案。

    Multistage despreading of spread spectrum communications signals
    5.
    发明申请
    Multistage despreading of spread spectrum communications signals 有权
    扩频通信信号的多级解扩

    公开(公告)号:US20070160013A1

    公开(公告)日:2007-07-12

    申请号:US10595008

    申请日:2003-06-18

    IPC分类号: H04B7/216 H04J11/00

    摘要: A method and a component for despreading a multi-code signal that has been generated using two or more spreading codes with different spreading factors are described. The method comprises subjecting the signal to a first despreading step (40) that includes a first Fast Hadamard Transform (FHT) to jointly despread the spreading codes. During the first despreading step one or more spreading codes are despread only partially. The signal or signal portion including one or more partially despread spreading codes are then subjected to one or more further despreading steps (42).

    摘要翻译: 描述了用于使用具有不同扩频因子的两个或多个扩展码产生的多码信号进行解扩的方法和组件。 该方法包括对信号进行包括第一快速哈达玛变换(FHT)的第一解扩展步骤(40)以共同解扩展扩展码。 在第一解扩步骤期间,一个或多个扩展码仅部分解扩。 包括一个或多个部分解扩展扩展码的信号或信号部分然后经受一个或多个进一步的解扩步骤(42)。

    Space-time scrambling for cellular systems
    6.
    发明授权
    Space-time scrambling for cellular systems 有权
    蜂窝系统的时空扰乱

    公开(公告)号:US08340216B2

    公开(公告)日:2012-12-25

    申请号:US11367094

    申请日:2006-03-03

    IPC分类号: H03K9/00

    摘要: Techniques for transmitting data with space-time scrambling in cellular systems (e.g., CDMA systems) are described. At least one stream of data symbols is generated, mapped to one or more physical channels, and spread with channelization codes for the physical channels. Space-time scrambling is performed on the at least one stream of data symbols to generate at least two streams of output chips. The space-time scrambling may be achieved by performing matrix multiplication with a sequence of matrices. For each time interval in which space-time scrambling is performed, a matrix may be selected (e.g., based on a scrambling code for a base station), and data to be sent in the time interval is multiplied with the selected matrix. The matrices used for space-time scrambling may be defined and selected in various manners. The streams of output chips are processed and transmitted from respective transmit antennas.

    摘要翻译: 描述了用于在蜂窝系统(例如,CDMA系统)中用空时加扰发送数据的技术。 生成至少一个数据符号流,映射到一个或多个物理信道,并用物理信道的信道化码进行扩展。 对至少一个数据符号流执行空时加扰以产生至少两个输出码片流。 空时加扰可以通过用矩阵序列执行矩阵乘法来实现。 对于执行空时加扰的每个时间间隔,可以选择矩阵(例如,基于用于基站的扰码),并且将在时间间隔中发送的数据与所选择的矩阵相乘。 用于空时加扰的矩阵可以以各种方式定义和选择。 从相应的发射天线处理和发射输出码片的流。

    METHOD AND SYSTEM FOR ADAPTING AN EFFECTIVE SPREADING SEQUENCE IN A COMMUNICATION SYSTEM USING DIRECT SEQUENCE SPREADING
    7.
    发明申请
    METHOD AND SYSTEM FOR ADAPTING AN EFFECTIVE SPREADING SEQUENCE IN A COMMUNICATION SYSTEM USING DIRECT SEQUENCE SPREADING 有权
    使用直接序列扩展在通信系统中适应有效扩展序列的方法和系统

    公开(公告)号:US20100166040A1

    公开(公告)日:2010-07-01

    申请号:US12721840

    申请日:2010-03-11

    IPC分类号: H04B1/00

    摘要: A method and system for adapting an effective spreading sequence in a wire-line or a wireless communication system using direct sequence spreading system is described. A station of the communication system determines a state of a communication channel, represented by, e.g., an impulse response, a step response, or any other characteristic known to one skilled in the art. The station determines the channel state by measurements of a received signal or by receiving a feedback signal comprising an information enabling the station to determine the plurality of linearly related phases The station then determines a plurality of linearly related phases in accordance with the state of the communication channel, and then applies at least one of the plurality of linearly related phases to at least one sample of the effective spreading sequence.

    摘要翻译: 描述了使用直接序列扩展系统在有线或无线通信系统中适配有效扩展序列的方法和系统。 通信系统的站确定由例如脉冲响应,阶跃响应或本领域技术人员已知的任何其它特征所表示的通信信道的状态。 该站通过测量接收到的信号来确定信道状态,或者通过接收包括使得站能够确定多个线性相关相位的信息的反馈信号。然后,站根据通信的状态确定多个线性相关相位 通道,然后将多个线性相关相中的至少一个应用于有效扩展序列的至少一个采样。

    Dynamic space-time coding for a communication system
    8.
    发明授权
    Dynamic space-time coding for a communication system 有权
    通信系统的动态时空编码

    公开(公告)号:US08320499B2

    公开(公告)日:2012-11-27

    申请号:US11367067

    申请日:2006-03-03

    IPC分类号: H03K9/00

    CPC分类号: H04L1/0625 H04L1/0009

    摘要: Techniques for transmitting data with dynamic space-time coding are described. Dynamic space-time coding refers to the mapping of data across both space and time dimensions based on a mapping scheme that changes in a dynamic manner, e.g., a time-variant manner. A transmitter generates at least one data stream and performs space-time coding on the at least one data stream in a dynamic manner to generate at least two output streams for transmission from at least two antennas. The space-time coding may be performed in various manners. For example, each data stream may be space-time coded based on a respective set of space-time codes, e.g., by cycling through the space-time codes in the code set or by using a space-time code selected based on feedback from a receiver. The code set for each data stream may also be selected from among multiple code sets available for the data stream.

    摘要翻译: 描述了使用动态时空编码传输数据的技术。 动态时空编码是指基于以动态方式(例如时变方式)改变的映射方案,跨越空间和时间维度的数据映射。 发射机生成至少一个数据流,并以动态方式对所述至少一个数据流执行空时编码,以生成至少两个用于从至少两个天线传输的输出流。 时空编码可以以各种方式进行。 例如,每个数据流可以基于空间时间码的相应集合来进行空时编码,例如,通过循环通过代码集中的时空码或通过使用基于来自 接收器 也可以从可用于数据流的多个代码集中选择每个数据流的代码集。

    Method and system for adapting an effective spreading sequence in a communication system using direct sequence spreading
    9.
    发明授权
    Method and system for adapting an effective spreading sequence in a communication system using direct sequence spreading 失效
    用于使用直接序列扩展在通信系统中适应有效扩展序列的方法和系统

    公开(公告)号:US07693037B2

    公开(公告)日:2010-04-06

    申请号:US11158589

    申请日:2005-06-21

    IPC分类号: H04J11/00 H04B7/216 H04B1/00

    摘要: A method and system for adapting an effective spreading sequence in a wire-line or a wireless communication system using direct sequence spreading system is described. A station of the communication system determines a state of a communication channel, represented by, e.g., an impulse response, a step response, or any other characteristic known to one skilled in the art. The station determines the channel state by measurements of a received signal or by receiving a feedback signal comprising an information enabling the station to determine the plurality of linearly related phases The station then determines a plurality of linearly related phases in accordance with the state of the communication channel, and then applies at least one of the plurality of linearly related phases to at least one sample of the effective spreading sequence.

    摘要翻译: 描述了使用直接序列扩展系统在有线或无线通信系统中适配有效扩展序列的方法和系统。 通信系统的站确定由例如脉冲响应,阶跃响应或本领域技术人员已知的任何其它特征所表示的通信信道的状态。 该站通过测量接收到的信号来确定信道状态,或者通过接收包括使站能够确定多个线性相关相位的信息的反馈信号。然后,站根据通信的状态确定多个线性相关相位 通道,然后将多个线性相关相中的至少一个应用于有效扩展序列的至少一个采样。

    Method and apparatus for preserving compatibility between legacy mode(s) of operation and new mode(s) of operation in a communication system
    10.
    发明授权
    Method and apparatus for preserving compatibility between legacy mode(s) of operation and new mode(s) of operation in a communication system 有权
    用于保持传统操作模式和通信系统中的新操作模式之间的兼容性的方法和装置

    公开(公告)号:US07450559B2

    公开(公告)日:2008-11-11

    申请号:US11250207

    申请日:2005-10-13

    IPC分类号: H04B7/212 H04Q7/20

    CPC分类号: H04W88/06 H04W72/048

    摘要: A method and an apparatus for preserving compatibility between legacy mode of operation and new mode of operation in a communication system, wherein allocation of resources is different in the legacy mode of operation and the new mode of operation is disclosed. Accordingly, an entity of a wireless access network, e.g., a base station, transmits signals comprising information about reallocation of resources from a legacy mode of operation to a new mode of operation. These signals are received at another entity of a wireless access network, e.g., a subscriber station, which then controls use by the subscriber station of resources allocated to the subscriber station in accordance with the information.

    摘要翻译: 一种用于在通信系统中保持传统操作模式和新操作模式之间的兼容性的方法和装置,其中在传统操作模式中资源分配不同,并且公开了新的操作模式。 因此,无线接入网络(例如,基站)的实体将信息包括关于资源从传统操作模式重新分配到新的操作模式的信息。 这些信号在无线接入网络(例如,用户台)的另一实体处被接收,然后用户台根据该信息控制用户台对用户台分配的资源的使用。