MIMO PREAMBLE FOR INITIAL ACCESS WITH AN UNKNOWN NUMBER OF TRANSMIT ANTENNAS
    42.
    发明申请
    MIMO PREAMBLE FOR INITIAL ACCESS WITH AN UNKNOWN NUMBER OF TRANSMIT ANTENNAS 有权
    用于初始接入发射天线的MIMO前缀

    公开(公告)号:US20100067599A1

    公开(公告)日:2010-03-18

    申请号:US12211861

    申请日:2008-09-17

    IPC分类号: H04B7/02

    CPC分类号: H04B7/0667 H04L27/261

    摘要: For certain embodiments, a preamble sequence associated with a particular number of transmit antennas may allow a receiving mobile station to determine the number of transmit antennas used for transmission. The preamble sequence may be selected from one of a set of Constant Amplitude and Zero Auto Correlation (CAZAC) sequences corresponding to all of the supported number of transmit antennas. As a result, a receiving station may be able to determine the sequence sent by correlation and, thereby determine the number of antennas used for transmission. Given the number of transmit antennas, the mobile station may then perform MIMO channel estimation during initial synchronization to recover the channel taps between each transmit and each receive antenna.

    摘要翻译: 对于某些实施例,与特定数量的发射天线相关联的前同步码序列可以允许接收移动台确定用于传输的发射天线的数量。 前导码序列可以从对应于所有支持的发射天线数量的一组恒定幅度和零自相关(CAZAC)序列之一中选择。 结果,接收站可以能够确定通过相关发送的序列,从而确定用于传输的天线的数量。 给定发射天线的数量,移动台然后可以在初始同步期间执行MIMO信道估计,以恢复每个发射天线和每个接收天线之间的信道抽头。

    METHODS AND SYSTEMS FOR MULTI-MODE TERMINAL SCANNING
    43.
    发明申请
    METHODS AND SYSTEMS FOR MULTI-MODE TERMINAL SCANNING 有权
    多模式终端扫描的方法和系统

    公开(公告)号:US20090279517A1

    公开(公告)日:2009-11-12

    申请号:US12211952

    申请日:2008-09-17

    IPC分类号: H04W74/00

    CPC分类号: H04W48/16 H04W88/06

    摘要: Certain embodiments of the present disclosure provide a method for scanning for paging messages in a second radio access technology (RAT) network, such as a CDMA network, while connected to a first RAT network, such as a WiMAX network. For certain embodiments, an enhanced scanning request message may facilitate establishing a scanning cycle in the first RAT that aligns with a paging cycle of the second RAT.

    摘要翻译: 本公开的某些实施例提供了一种用于在诸如CDMA网络的第二无线电接入技术(RAT)网络中扫描寻呼消息的方法,同时连接到诸如WiMAX网络的第一RAT网络。 对于某些实施例,增强的扫描请求消息可以有助于建立与第二RAT的寻呼周期对准的第一RAT中的扫描周期。

    METHODS AND SYSTEMS FOR CHOOSING CYCLIC DELAYS IN MULTIPLE ANTENNA OFDM SYSTEMS
    44.
    发明申请
    METHODS AND SYSTEMS FOR CHOOSING CYCLIC DELAYS IN MULTIPLE ANTENNA OFDM SYSTEMS 有权
    用于在多个天线OFDM系统中选择循环延迟的方法和系统

    公开(公告)号:US20090225646A1

    公开(公告)日:2009-09-10

    申请号:US12357935

    申请日:2009-01-22

    IPC分类号: H04J9/00 H04K1/10 H04J1/16

    CPC分类号: H04B7/0671

    摘要: Certain embodiments of the present disclosure relate to a method to determine appropriate values of cyclic delays applied at a transmitter with multiple antennas in order to provide accurate estimation of channel gains in a multiple-input single-output (MISO) system or multiple-input multiple-output (MIMO) system.

    摘要翻译: 本公开的某些实施例涉及一种确定在具有多个天线的发射机处应用的循环延迟的适当值的方法,以便提供多输入单输出(MISO)系统中的信道增益的准确估计或多输入多重 输出(MIMO)系统。

    METHOD AND APPARATUS FOR REQUESTING A CHANNEL MEASUREMENT REPORT IN WIRELESS COMMUNICATION SYSTEMS
    45.
    发明申请
    METHOD AND APPARATUS FOR REQUESTING A CHANNEL MEASUREMENT REPORT IN WIRELESS COMMUNICATION SYSTEMS 有权
    在无线通信系统中要求通道测量报告的方法和装置

    公开(公告)号:US20090052340A1

    公开(公告)日:2009-02-26

    申请号:US12091473

    申请日:2006-10-27

    IPC分类号: G06F11/00

    摘要: A method and apparatus for requesting a ChannelMeasurementReport in a wireless communication system are described. A ChannelMeasurementReportRequest message comprising an 8 bit MessageID field set to “0x07”, a 12 bit PilotPN field wherein the PilotPN field is set to the PilotPN of the sector requesting the measurement report, a 2 bit CarrierID field wherein the CarrierID field is set to the carrier on which the measurements are requested, a 40 bit StartPHYFrame wherein the StartPHYFrame is set to the frame number of the PHYFrame where access terminals are required to being measurements, a 3 bit NumChannels field wherein the NumChannels field is set to the number of channel to be measured, an 8 bit MeasurementsPerMessage field wherein the MeasurementsPerMessage determines the number of measurements to be included in one report message, an 8 bit NumMeasurementsRequested field wherein the NumMeasurementsRequested determines the total number of measurements to be made by access terminal and a 4 bit Reserved field is generated and transmitted over a communication link.

    摘要翻译: 描述了在无线通信系统中请求ChannelMeasurementReport的方法和装置。 ChannelMeasurementReportRequest消息包括设置为“0x07”的8位MessageID字段,12位PilotPN字段,其中PilotPN字段被设置为请求测量报告的扇区的PilotPN,2位CarrierID字段,其中CarrierID字段被设置为 在其上请求测量的载波,40比特StartPHYFrame,其中StartPHYFrame被设置为需要接入终端进行测量的PHY帧的帧号,3比特NumChannels字段,其中NumChannels字段被设置为信道数目 测量,一个8位MeasurementsPerMessage字段,其中MeasurementsPerMessage确定要包括在一个报告消息中的测量数量; 8位NumMeasurementsRequested字段,其中NumMeasurementsRequested确定接入终端要进行的测量的总数和4位的保留字段 通过通信链路生成和发送。

    Methods and systems for choosing cyclic delays in multiple antenna OFDM systems
    48.
    发明授权
    Methods and systems for choosing cyclic delays in multiple antenna OFDM systems 有权
    在多天线OFDM系统中选择循环延迟的方法和系统

    公开(公告)号:US08570939B2

    公开(公告)日:2013-10-29

    申请号:US12357935

    申请日:2009-01-22

    IPC分类号: H04W4/00 H04J1/00

    CPC分类号: H04B7/0671

    摘要: Certain embodiments of the present disclosure relate to a method to determine appropriate values of cyclic delays applied at a transmitter with multiple antennas in order to provide accurate estimation of channel gains in a multiple-input single-output (MISO) system or multiple-input multiple-output (MIMO) system.

    摘要翻译: 本公开的某些实施例涉及一种确定在具有多个天线的发射机处应用的循环延迟的适当值的方法,以便提供多输入单输出(MISO)系统中的信道增益的准确估计或多输入多重 输出(MIMO)系统。

    Methods and systems for multi-mode terminal scanning
    49.
    发明授权
    Methods and systems for multi-mode terminal scanning 有权
    多模式终端扫描的方法和系统

    公开(公告)号:US08559948B2

    公开(公告)日:2013-10-15

    申请号:US12211952

    申请日:2008-09-17

    IPC分类号: H04W4/00

    CPC分类号: H04W48/16 H04W88/06

    摘要: Certain embodiments of the present disclosure provide a method for scanning for paging messages in a second radio access technology (RAT) network, such as a CDMA network, while connected to a first RAT network, such as a WiMAX network. For certain embodiments, an enhanced scanning request message may facilitate establishing a scanning cycle in the first RAT that aligns with a paging cycle of the second RAT.

    摘要翻译: 本公开的某些实施例提供了一种用于在诸如CDMA网络的第二无线电接入技术(RAT)网络中扫描寻呼消息的方法,同时连接到诸如WiMAX网络的第一RAT网络。 对于某些实施例,增强的扫描请求消息可以有助于建立与第二RAT的寻呼周期对准的第一RAT中的扫描周期。