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    Methods and Apparatus for Link Adaptation for Single User and Multi-User Mimo
    43.
    发明申请
    Methods and Apparatus for Link Adaptation for Single User and Multi-User Mimo 有权
    用于单用户和多用户Mimo的链路适配的方法和装置

    公开(公告)号：US20130170469A1

    公开(公告)日：2013-07-04

    申请号：US13342650

    申请日：2012-01-03

    申请人： Ping Yu ,  Girum Alebachew Fantaye ,  Xixian Chen ,  Hong Ren

    发明人： Ping Yu ,  Girum Alebachew Fantaye ,  Xixian Chen ,  Hong Ren

    IPC分类号： H04W72/04 ,  H04W72/08

    CPC分类号： H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0042 ,  H04L5/0046 ,  H04W28/06

    摘要： Methods of performing link adaptation in a wireless communication system for simultaneous transmission of codewords include selecting initial modulation and coding scheme (MCS) levels for the codewords, estimating a size ratio of the codewords, determining a number of scheduling blocks (SB) for the codewords with the initial MCS levels, and determining revised MCS levels for the codewords in response to the determined number of SBs. Transport block sizes are computed for the codewords, and it is determined if there is a need to increase the number of scheduling blocks in at least one of the codewords. If there is a need to increase the number of scheduling blocks in a codeword, scheduling blocks are added to the codeword, and the transport block size for the codeword is recomputed. The codewords are then simultaneously transmitted over different multiple input-multiple output (MIMO) communication channels using the same time and frequency resources.

    摘要翻译： 在用于码字的同时传输的无线通信系统中执行链路自适应的方法包括为码字选择初始调制和编码方案（MCS）级别，估计码字的大小比，确定码字的调度块数量（SB） 并且响应于所确定的SB数量确定码字的修改的MCS级别。 为码字计算传输块大小，并且确定是否需要增加至少一个码字中的调度块的数量。 如果需要增加码字中的调度块的数量，则将调度块添加到码字，并重新计算码字的传输块大小。 然后使用相同的时间和频率资源在不同的多输入多输出（MIMO）通信信道上同时发送码字。

    Method and System for Reducing Connection Set-Up Time
    44.
    发明申请
    Method and System for Reducing Connection Set-Up Time 有权
    减少连接建立时间的方法和系统

    公开(公告)号：US20120127943A1

    公开(公告)日：2012-05-24

    申请号：US13364404

    申请日：2012-02-02

    申请人： Xixian Chen ,  Vasanta Chivukula ,  Weigang Li ,  Guoqiang Xue ,  Ryan Santa ,  Miroslav Budic ,  Brian Troup ,  Martin Kendall

    发明人： Xixian Chen ,  Vasanta Chivukula ,  Weigang Li ,  Guoqiang Xue ,  Ryan Santa ,  Miroslav Budic ,  Brian Troup ,  Martin Kendall

    IPC分类号： H04W72/04

    CPC分类号： H04W76/005 ,  H04L1/16 ,  H04W72/042 ,  H04W76/45

    摘要： A method of connection setup in mobile wireless data communications systems is disclosed where the connection setup time is decreased for delay-sensitive communications sessions relative to the normal connection setup time for confidence-dependent communications sessions. This is achieved by performing some of the connection set-up steps for delay-sensitive communications sessions after successfully demodulating a smaller number of indications identifying an access terminal's desired serving resource than would be demodulated in the case of a confidence-dependent communication session prior to performing the same connection set-up steps.

    摘要翻译： 公开了一种移动无线数据通信系统中的连接建立方法，其中相对于用于依赖于置信的通信会话的正常连接建立时间，延迟敏感通信会话的连接建立时间减少。 这是通过在成功地解调识别接入终端的期望服务资源的较少数量的指示之后执行用于延迟敏感通信会话的一些连接建立步骤来实现的，而不是在依赖于依赖于通信会话的情况下被解调的 执行相同的连接设置步骤。

    SELECTING FROM AMONG PLURAL CHANNEL ESTIMATION TECHNIQUES
    45.
    发明申请
    SELECTING FROM AMONG PLURAL CHANNEL ESTIMATION TECHNIQUES 有权
    从多种通道估计技术中选择

    公开(公告)号：US20120115470A1

    公开(公告)日：2012-05-10

    申请号：US13383721

    申请日：2010-07-15

    申请人： Jiandong Zhuang ,  Xixian Chen ,  Edward Ken Kiu Mah

    发明人： Jiandong Zhuang ,  Xixian Chen ,  Edward Ken Kiu Mah

    IPC分类号： H04W24/00

    CPC分类号： H04W72/085 ,  H04L25/022 ,  H04L25/024

    摘要： A wireless receiver receives reference signals over a wireless link. The wireless receiver calculates a selection indication based on the received reference signals, and the wireless receiver selects from among plural channel estimation techniques based on the selection indication, where the selected channel estimation technique is usable to perform channel estimation of the wireless link.

    摘要翻译： 无线接收器通过无线链路接收参考信号。 无线接收机基于接收到的参考信号来计算选择指示，无线接收机根据选择指示从多个信道估计技术中进行选择，其中选择的信道估计技术可用于执行无线链路的信道估计。

    System and method for decoding CDMA quality channel
    47.
    发明授权
    System and method for decoding CDMA quality channel 失效
    CDMA质量通道的系统和方法

    公开(公告)号：US07649994B1

    公开(公告)日：2010-01-19

    申请号：US10697309

    申请日：2003-10-31

    申请人： Abdelgader Legnain ,  Xixian Chen

    发明人： Abdelgader Legnain ,  Xixian Chen

    IPC分类号： H04N7/167 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04K1/00 ,  G10L21/04 ,  G06F7/00 ,  G06F15/00

    CPC分类号： H04J13/0048 ,  H04B1/7077 ,  H04B2201/70701

    摘要： A method of decoding symbols in which a first codeword has been spread by a second codeword to recover first information and second information is provided. The decoding occurs jointly, with an overall output determining both the first and second information. A first parallel code multiplying operation for each codeword of the second code is followed by a second parallel code multiplying operation for the first code. An overall maximum output of the second parallel code multiplying operations determines the output information.

    摘要翻译： 提供一种解码符号的方法，其中第一码字已被第二码字扩展以恢复第一信息和第二信息。 解码共同发生，总体输出确定第一和第二信息。 对于第二代码的每个码字的第一并行代码乘法运算之后是第一代码的第二并行代码乘法运算。 第二并行代码乘法运算的总体最大输出确定输出信息。

    Method and system for acquisition of a time stamped signal
    48.
    发明授权
    Method and system for acquisition of a time stamped signal 有权
    用于采集时间戳信号的方法和系统

    公开(公告)号：US06704300B1

    公开(公告)日：2004-03-09

    申请号：US09374000

    申请日：1999-08-16

    申请人： Xixian Chen ,  Song Zhang ,  Shiquan Wu

    发明人： Xixian Chen ,  Song Zhang ,  Shiquan Wu

    IPC分类号： H04J306

    CPC分类号： H04J3/0697 ,  G01S5/12 ,  H04L7/042

    摘要： The invention is directed to a method and system for acquisition of a time stamped signal burst while preserving timing information. A system for acquisition of a time stamped signal burst while preserving timing information. The system includes a first framer, an offset frequency compensator and a second framer. The first framer is for framing a buffered signal burst using least mean squares tuning to produce a first time stamp. The offset frequency compensator is for substantially removing a frequency offset from the first time stamp to produce a rough signal burst. The second framer is for framing the rough signal burst using least mean squares tuning to produce a fine signal burst arid a second time stamp, the second time stamp being more reliable than the first time stamp. A method system or acquisition of a time stamped signal burst while preserving timing information including the steps of framing using LMS and compensating for frequency offset. An advantage of the invention is increased reliability of the time stamp of the acquired signal burst.

    摘要翻译： 本发明涉及一种用于在保留定时信息的同时采集时间戳信号脉冲串的方法和系统。 一种用于获取时间戳信号脉冲串同时保持定时信息的系统。 该系统包括第一成帧器，偏移频率补偿器和第二成帧器。 第一个成帧器用于使用最小均方调整来构建缓冲的信号突发以产生第一时间戳。 偏移频率补偿器用于基本上从第一时间戳移除频率偏移以产生粗略的信号脉冲串。 第二成帧器用于使用最小均方调整来构图粗略信号突发以产生精细信号脉冲串和第二时间戳，第二时间戳比第一时间戳更可靠。 一种方法系统或时间戳信号脉冲串的采集，同时保持定时信息，包括使用LMS进行成帧和补偿频率偏移的步骤。 本发明的一个优点是增加了获取的信号脉冲串的时间戳的可靠性。

    Method and apparatus for locating a mobile transceiver in conversation state
    49.
    发明授权
    Method and apparatus for locating a mobile transceiver in conversation state 有权
    用于定位会话状态的移动收发器的方法和装置

    公开(公告)号：US06522882B1

    公开(公告)日：2003-02-18

    申请号：US09335715

    申请日：1999-06-18

    申请人： Xixian Chen ,  Yiu Ming Lam ,  Mikhail Royz

    发明人： Xixian Chen ,  Yiu Ming Lam ,  Mikhail Royz

    IPC分类号： H04Q720

    CPC分类号： H04W64/00

    摘要： A method and apparatus for locating, in relation to a plurality of cell sites, a mobile cellular transceiver in a conversation state. The method includes the steps of transmitting from one of the plurality of cell sites to the mobile transceiver a handoff signal for causing the mobile transceiver to continually transmit a known beacon signal while still in the conversation state, at at least some of the plurality of base stations, receiving the known beacon signal and measuring the time at which the known beacon signal was received, and calculating the location of the mobile transceiver from the respective locations of each of the at least some of the plurality of cell sites and the respective times at which the beacon signal was received at each of the at least some of the plurality of cell sites.

    摘要翻译： 一种用于在多个小区站点中定位处于谈话状态的移动蜂窝收发信机的方法和装置。 所述方法包括以下步骤：从所述多个小区站点之一向所述移动收发机发送切换信号，用于使所述移动收发信机在仍处于所述通话状态期间，在所述多个基站中的至少一些基站 接收所述已知信标信号并测量接收到所述已知信标信号的时间，以及从所述多个小区站点中的所述至少一个小区站点中的每一个的相应位置和相应时间计算所述移动收发信机的位置 所述信标信号在所述多个小区站点中的所述至少一些小区站点中的每一个处被接收。

    Apparatus and method for inputting ideographic characters
    50.
    发明授权
    Apparatus and method for inputting ideographic characters 失效
    用于输入表意字符的装置和方法

    公开(公告)号：US6054941A

    公开(公告)日：2000-04-25

    申请号：US863847

    申请日：1997-05-27

    申请人： Xixian Chen

    发明人： Xixian Chen

    IPC分类号： G06F3/00 ,  G06F3/01 ,  H03K17/94

    CPC分类号： G06F3/018

    摘要： An apparatus (100) and method for inputting ideographic characters. The apparatus (100) has an input pad with a predetermined number of input keys (102, . . . 111). Theoretically, at least a stroke and a radical are mapped to each input key (102, . . . 111). After the apparatus (100) receives at least a first and a second input key entry, based on a number of input key entries received, the apparatus (100) determines whether the first input key entry is one of the following: a stroke and a radical. Thus, the method solves the ambiguity problems caused by such a mapping of the apparatus.

    摘要翻译： 一种用于输入表意字符的装置（100）和方法。 装置（100）具有输入板，其具有预定数量的输入键（102 ... 111）。 理论上，至少一个笔画和一个基数被映射到每个输入键（102 ... 111）。 在装置（100）基于接收到的输入密钥条目的数量来接收至少第一输入密钥条目和第二输入密钥条目之后，装置（100）确定第一输入密钥条目是否是以下之一：卒中和 激进。 因此，该方法解决了这种设备的映射引起的模糊性问题。