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    Broadcast and multicast services in wireless communication systems
    1.
    发明申请
    Broadcast and multicast services in wireless communication systems 有权
    无线通信系统中的广播和多播服务

    公开(公告)号：US20080056387A1

    公开(公告)日：2008-03-06

    申请号：US11893834

    申请日：2007-08-17

    申请人： Sandip Sakar ,  Aamod Khandekar ,  Tamer Kadous

    发明人： Sandip Sakar ,  Aamod Khandekar ,  Tamer Kadous

    IPC分类号： H04N11/02

    CPC分类号： H04W72/005

    摘要： Methods and apparatus for assigning, identifying and controlling broadcast transmissions are disclosed. A broadcast flow is assigned to a broadcast logical channel of the physical resources of a wireless communication channel. A broadcast channel control message indicative of parameters of the broadcast logical channel is generated. Upon receipt, the broadcast channel control message is processed and used to accordingly process the received broadcast transmission.

    摘要翻译： 公开了用于分配，识别和控制广播传输的方法和装置。 广播流被分配给无线通信信道的物理资源的广播逻辑信道。 生成表示广播逻辑信道的参数的广播信道控制消息。 在接收到广播频道控制消息时，处理并用于相应地处理所接收的广播传输。

    METHOD AND APPARATUS FOR ANTENNA DIVERSITY IN MULTI-INPUT MULTI-OUTPUT COMMUNICATION SYSTEMS
    3.
    发明申请
    METHOD AND APPARATUS FOR ANTENNA DIVERSITY IN MULTI-INPUT MULTI-OUTPUT COMMUNICATION SYSTEMS 有权
    多输入多输出通信系统中天线多样性的方法与装置

    公开(公告)号：US20120120925A1

    公开(公告)日：2012-05-17

    申请号：US13271121

    申请日：2011-10-11

    申请人： Tamer Kadous ,  Aamod Khandekar ,  Dhananjay Ashok Gore ,  Alexei Gorokhov

    发明人： Tamer Kadous ,  Aamod Khandekar ,  Dhananjay Ashok Gore ,  Alexei Gorokhov

    IPC分类号： H04W72/04

    CPC分类号： H04L5/0023 ,  H04B7/0456 ,  H04B7/061 ,  H04B7/0671 ,  H04B7/0691 ,  H04B7/0697 ,  H04L27/2602

    摘要： Transmission schemes that can flexibly achieve the desired spatial multiplexing order, spatial diversity order, and channel estimation overhead order are described. For data transmission, the assigned subcarriers and spatial multiplexing order (M) for a receiver are determined, where M≧1. For each assigned subcarrier, M virtual antennas are selected from among V virtual antennas formed with V columns of an orthonormal matrix, where V≧M. V may be selected to achieve the desired spatial diversity order and channel estimation overhead order. Output symbols are mapped to the M virtual antennas selected for each assigned subcarrier by applying the orthonormal matrix. Pilot symbols are also mapped to the V virtual antennas. The mapped symbols are provided for transmission from T transmit antennas, where T≧V. Transmission symbols are generated for the mapped symbols, e.g, based on OFDM or SC-FDMA. Different cyclic delays may be applied for the T transmit antennas to improve diversity.

    摘要翻译： 描述了可以灵活地实现期望的空间复用顺序，空间分集顺序和信道估计开销顺序的传输方案。 对于数据传输，确定接收机的分配子载波和空间复用顺序（M），其中M≥1。 对于每个分配的子载波，从由正交矩阵的V列形成的V个虚拟天线中选择M个虚拟天线，其中V≥M。 可以选择V以实现期望的空间分集顺序和信道估计开销顺序。 通过应用正交矩阵将输出符号映射到为每个分配的副载波选择的M个虚拟天线。 导频符号也映射到V虚拟天线。 映射的符号被提供用于从T发射天线发射，其中T≥V。 为映射符号生成传输符号，例如基于OFDM或SC-FDMA。 可以对T发射天线应用不同的循环延迟以改善分集。

    POWER CONTROL FOR WIRELESS COMMUNICATION SYSTEMS
    6.
    发明申请
    POWER CONTROL FOR WIRELESS COMMUNICATION SYSTEMS 有权
    无线通信系统的功率控制

    公开(公告)号：US20120224502A1

    公开(公告)日：2012-09-06

    申请号：US13473229

    申请日：2012-05-16

    申请人： Alexei Gorokhov ,  Aamod Khandekar ,  Tamer Kadous ,  Mohammad J. Borran

    发明人： Alexei Gorokhov ,  Aamod Khandekar ,  Tamer Kadous ,  Mohammad J. Borran

    IPC分类号： H04W52/24 ,  H04W24/00

    CPC分类号： H04W52/16 ,  H04W52/146 ,  H04W52/241 ,  H04W52/243 ,  H04W52/244 ,  H04W52/325 ,  H04W52/40

    摘要： Techniques for controlling transmit power of a terminal are described. The terminal may send a first transmission (e.g., for pilot or signaling) on the reverse link, receive feedback (e.g., a power control command or an erasure indicator) for the first transmission, and adjust a reference power level based on the feedback. The terminal may also receive interference information and possibly other parameters such as a pilot quality indicator (PQI), an offset factor, and a boost factor from a sector. The terminal may determine transmit power for a second transmission to the sector based on the interference information, the reference power level, and/or the other parameters. The terminal may receive the feedback from one sector and may send the second transmission with CDMA or OFDMA to the same sector or a different sector.

    摘要翻译： 描述用于控制终端的发射功率的技术。 终端可以在反向链路上发送第一传输（例如，用于导频或信令），接收用于第一传输的反馈（例如，功率控制命令或擦除指示符），并且基于反馈来调整参考功率电平。 终端还可以从扇区接收干扰信息和可能的其它参数，例如导频质量指示符（PQI），偏移因子和增强因子。 终端可以基于干扰信息，参考功率电平和/或其他参数来确定对扇区的第二传输的发射功率。 终端可以从一个扇区接收反馈，并且可以将具有CDMA或OFDMA的第二传输发送到同一扇区或不同扇区。

    BROADCAST AND MULTICAST SERVICES IN WIRELESS COMMUNICATION SYSTEMS
    8.
    发明申请
    BROADCAST AND MULTICAST SERVICES IN WIRELESS COMMUNICATION SYSTEMS 有权
    无线通信系统中的广播和多播服务

    公开(公告)号：US20120120861A1

    公开(公告)日：2012-05-17

    申请号：US13024057

    申请日：2011-02-09

    申请人： Sandip Sarkar ,  Aamod Khandekar ,  Tamer Kadous

    发明人： Sandip Sarkar ,  Aamod Khandekar ,  Tamer Kadous

    IPC分类号： H04W4/06

    CPC分类号： H04W72/005

    摘要： Methods and apparatus for assigning, identifying and controlling broadcast transmissions are disclosed. A broadcast flow is assigned to a broadcast logical channel of the physical resources of a wireless communication channel. A broadcast channel control message indicative of parameters of the broadcast logical channel is generated. Upon receipt, the broadcast channel control message is processed and used to accordingly process the received broadcast transmission.

    摘要翻译： 公开了用于分配，识别和控制广播传输的方法和装置。 广播流被分配给无线通信信道的物理资源的广播逻辑信道。 生成表示广播逻辑信道的参数的广播信道控制消息。 在接收到广播频道控制消息时，处理并用于相应地处理所接收的广播传输。

    Handoff selection for wireless communication systems
    9.
    发明申请
    Handoff selection for wireless communication systems 有权
    无线通信系统的切换选择

    公开(公告)号：US20070287462A1

    公开(公告)日：2007-12-13

    申请号：US11761790

    申请日：2007-06-12

    申请人： Alexei Gorokhov ,  Aamod Khandekar ,  Tamer Kadous ,  Mohammad Borran ,  Rajat Prakash

    发明人： Alexei Gorokhov ,  Aamod Khandekar ,  Tamer Kadous ,  Mohammad Borran ,  Rajat Prakash

    IPC分类号： H04Q7/20

    CPC分类号： H04W36/30 ,  H04L5/0023 ,  H04L5/0048 ,  H04L27/2613 ,  H04W36/36

    摘要： Techniques for selecting serving sectors and performing handoff for a terminal on the forward and reverse links are described. The terminal may obtain pilot measurements for pilots transmitted on the forward link and may update an active set based on the pilot measurements. The terminal may send a transmission (e.g., for pilot, signaling, etc.) on the reverse link and may receive channel quality information indicative of reverse link channel quality for the terminal at multiple sectors in the active set. The transmission may include pilot, and the channel quality information from each sector may include a pilot carrier-over-thermal ratio (pCoT) determined by that sector based on the pilot. The terminal may select a serving sector based on the channel quality information, interference information, and/or other information and may send a request for handoff (e.g., via a signaling message an/or an access probe) to the selected serving sector.

    摘要翻译： 描述用于选择服务扇区并对前向和反向链路上的终端执行切换的技术。 终端可以获得在前向链路上发送的导频的导频测量，并且可以基于导频测量来更新活动集。 终端可以在反向链路上发送传输（例如，用于导频，信令等），并且可以在活动集中的多个扇区处接收指示终端的反向链路信道质量的信道质量信息。 传输可以包括导频，并且来自每个扇区的信道质量信息可以包括由该扇区基于导频确定的导频载波热传输比（pCoT）。 终端可以基于信道质量信息，干扰信息和/或其他信息来选择服务扇区，并且可以向所选择的服务扇区发送切换请求（例如，经由信令消息，或访问探测器）。

    Rank step-down for MIMO SCW design employing HARQ
    10.
    发明申请
    Rank step-down for MIMO SCW design employing HARQ 有权
    采用HARQ的MIMO SCW设计的等级降级

    公开(公告)号：US20070011550A1

    公开(公告)日：2007-01-11

    申请号：US11441742

    申请日：2006-05-25

    申请人： Avneesh Agrawal ,  Aamod Khandekar ,  Hemanth Sampath ,  Tamer Kadous

    发明人： Avneesh Agrawal ,  Aamod Khandekar ,  Hemanth Sampath ,  Tamer Kadous

    IPC分类号： H04L1/00 ,  H03M13/00 ,  G08C25/00 ,  G06F11/00 ,  G06F11/30

    CPC分类号： H04B7/0697 ,  H04L1/0001 ,  H04L1/0006 ,  H04L1/0026 ,  H04L1/1812 ,  H04L1/1893

    摘要： Systems and methodologies are described that facilitate reducing rank (e.g., of a user device) as a number of transmissions there from increases. Such rank step-down can improve interference resistance and facilitate maintaining code rate despite transmission propagation. Additionally, rank step-down information can be encoded along with CQI information to generate a 5-bit CQI signal that can facilitate updating a user's rank upon each CQI transmission (e.g., approximately every 5 ms). The described systems and/or methods can be employed in a single code word (SCW) wireless communication environment with a hybrid automatic request (HARQ) protocol.

    摘要翻译： 描述的系统和方法被简化为有助于减少等级（例如，用户设备），因为其中的传输数量增加。 这种排序降低可以改善抗干扰性，并且有助于保持代码率，尽管传输传播。 此外，等级降级信息可以与CQI信息一起编码，以产生可以有助于在每次CQI传输（例如，大约每5ms）更新用户的等级的5比特CQI信号。 所描述的系统和/或方法可以用于具有混合自动请求（HARQ）协议的单个码字（SCW）无线通信环境中。