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    Methods and systems for server selection during feedback channel impairment in wireless communications
    4.
    发明申请
    Methods and systems for server selection during feedback channel impairment in wireless communications 有权
    无线通信中反馈信道损伤时服务器选择的方法和系统

    公开(公告)号：US20070042781A1

    公开(公告)日：2007-02-22

    申请号：US11506108

    申请日：2006-08-16

    申请人： Mehmet Yavuz ,  Sarut Vanichpun ,  Yeliz Tokgoz ,  Matthew Grob ,  Peter Black

    发明人： Mehmet Yavuz ,  Sarut Vanichpun ,  Yeliz Tokgoz ,  Matthew Grob ,  Peter Black

    IPC分类号： H04Q7/20

    CPC分类号： H04W36/18 ,  H04W36/30 ,  H04W36/38 ,  H04W72/00 ,  H04W99/00

    摘要： Embodiments disclosed herein relate to methods and systems for server selection during feedback channel impairment in wireless communications. The feedback channel may be provided by a data rate control (DRC) channel, transmitted from an access terminal to an access network relating the selected serving sector (DRC cover) and the desired data rate (DRC rate) for transmission on forward link. During DRC cover erasure (e.g., due to channel impairment), a data source control (DSC) channel may be used as complimentary information to assist the DRC erasure mapping decision at the access network.

    摘要翻译： 本文公开的实施例涉及在无线通信中的反馈信道损伤期间服务器选择的方法和系统。 反馈信道可以由数据速率控制（DRC）信道提供，数据速率控制（DRC）信道从接入终端发送到与所选择的服务扇区（DRC覆盖）相关联的接入网络和用于在前向链路上传输的期望数据速率（DRC速率）。 在DRC覆盖擦除期间（例如，由于信道损害），可以使用数据源控制（DSC）信道作为补充信息来辅助接入网络处的DRC擦除映射决定。

    Synchronized broadcast/multicast communication
    7.
    发明申请
    Synchronized broadcast/multicast communication 有权
    同步广播/组播通信

    公开(公告)号：US20050175070A1

    公开(公告)日：2005-08-11

    申请号：US11041136

    申请日：2005-01-20

    申请人： Matthew Grob ,  Peter Black ,  Srikant Jayaraman ,  Paul Jacobs

    发明人： Matthew Grob ,  Peter Black ,  Srikant Jayaraman ,  Paul Jacobs

    IPC分类号： H04L5/02 ,  H04L27/26 ,  H04B1/707

    CPC分类号： H04L5/026 ,  H04L27/2607

    摘要： Synchronized broadcast transmits a same broadcast content using a same waveform from multiple transmitters. Transmitters each apply a same spreading code for broadcast transmissions. In a spread-spectrum communication system having a time division multiplexed forward link, a synchronized broadcast transmission is inserted into a broadcast slot. One embodiment employs an Orthogonal Frequency Divisional Multiplex (OFDM) waveform for the synchronized broadcast. An OFDM receiver is then used to process the received synchronized broadcast transmission. An alternate embodiment implements a broadcast Pseudo-random Noise (PN) code for use by multiple transmitters. An equalizer is then employed to estimate the synchronized broadcast transmission.

    摘要翻译： 同步广播使用来自多个发射机的相同波形发送相同的广播内容。 发射机各自对广播传输应用相同的扩展码。 在具有时分多路复用前向链路的扩频通信系统中，将同步的广播传输插入广播时隙。 一个实施例采用用于同步广播的正交频分复用（OFDM）波形。 然后使用OFDM接收机来处理所接收的同步广播传输。 替代实施例实现广播伪随机噪声（PN）码，供多个发射机使用。 然后使用均衡器来估计同步的广播传输。

    Methods and systems for providing enhanced position location in wireless communications
    8.
    发明申请
    Methods and systems for providing enhanced position location in wireless communications 有权
    用于在无线通信中提供增强的位置定位的方法和系统

    公开(公告)号：US20070139267A1

    公开(公告)日：2007-06-21

    申请号：US11313321

    申请日：2005-12-20

    申请人： Peter Black ,  Matthew Grob

    发明人： Peter Black ,  Matthew Grob

    IPC分类号： G01S1/00 ,  G01S1/24

    CPC分类号： H04W72/0446 ,  G01S5/0221 ,  H04W48/08 ,  H04W48/14 ,  H04W64/00

    摘要： Embodiments disclosed herein relate to methods and systems for providing improved position-location (e.g., time-of-arrival) measurement and enhanced position location in wireless communication systems. In an embodiment, an access point may replace information (e.g., data) transmission by a “known” transmission (or “reference transmission”) at a predetermined time known to access terminals in the corresponding sectors. The access terminals may use the received reference transmission to perform a position-location measurement, and report back the measured information. The access point may also send a reference transmission on demand, e.g., in response to a request from an access terminal in need for a location-based service.

    摘要翻译： 本文公开的实施例涉及用于在无线通信系统中提供改进的位置定位（例如到达时间）测量和增强的位置定位的方法和系统。 在一个实施例中，接入点可以在对已知的传输（或“参考传输”）在对应扇区中的接入终端已知的预定时间内替换信息（例如，数据）传输。 接入终端可以使用接收到的参考传输来执行位置测量，并且返回所测量的信息。 接入点还可以例如响应于需要基于位置的服务的接入终端的请求，按需发送参考传输。