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    SFN AND SIGNALING MECHANISMS FOR SOFTER HANDOFF GROUPS
    51.
    发明申请
    SFN AND SIGNALING MECHANISMS FOR SOFTER HANDOFF GROUPS 失效
    SFN和信号手机组的信号机制

    公开(公告)号：US20080096569A1

    公开(公告)日：2008-04-24

    申请号：US11852964

    申请日：2007-09-10

    申请人： Aamod Khandekar ,  Alexei Gorokhov ,  Rajat Prakash

    发明人： Aamod Khandekar ,  Alexei Gorokhov ,  Rajat Prakash

    IPC分类号： H04Q7/20

    CPC分类号： H04W36/18 ,  H04W36/30

    摘要： Softer handoff groups are provided utilizing fractional frequency reuse set, which can be managed by a single master sector that is part of the group. The group can based on handoff rules that can include a group indication by an access point or a group request by an access terminal. A terminal is provided functionality to select a softer handoff group, which can be indicated by an active set update. An access point can discontinue serving terminals by groups by reducing an active set size to one. Diversity can be provided such that if a transmission from one sector fades, the other sector can provide the transmission, mitigating loss of data. Thus, robustness against inadequate channel conditions can be obtained.

    摘要翻译： 使用分数频率复用集提供更软的切换组，该组可以由作为组的一部分的单个主扇区来管理。 该组可以基于切换规则，其可以包括接入点的组指示或接入终端的组请求。 提供终端用于选择较软的越区切换组，其可以由活动集更新来指示。 接入点可以通过将活动集合大小减小到一个来终止服务终端。 可以提供分集，使得如果来自一个扇区的传输衰落，则另一扇区可以提供传输，减轻数据丢失。 因此，可以获得针对不充分的信道条件的鲁棒性。

    Varied transmission time intervals for wireless communication system
    52.
    发明申请
    Varied transmission time intervals for wireless communication system 有权
    无线通信系统的传输时间间隔

    公开(公告)号：US20070047485A1

    公开(公告)日：2007-03-01

    申请号：US11260932

    申请日：2005-10-27

    申请人： Alexei Gorokhov ,  Edward Teague ,  Aamod Khandekar

    发明人： Alexei Gorokhov ,  Edward Teague ,  Aamod Khandekar

    IPC分类号： H04Q7/00

    CPC分类号： H04W72/1231

    摘要： Embodiments describe a varied transmission time interval in wireless communication system. According to some embodiments is a method for assigning a transmission time interval. The method can include measuring a channel condition and/or a data rate of packet communicated by at least one wireless device. Based in part on the data rate and/or channel condition information, a determination can be made whether to schedule a long transmission time interval or a short transmission time interval to the packet. A long transmission time interval can be scheduled if the channel condition is poor and/or there is a low data rate. A short transmission time interval can be scheduled if the channel condition is good and/or the data rate is high or fast. The method can be repeated for multiple wireless devices. Also included is an alternative interlacing structure that supports both long transmission time intervals and short transmission time intervals.

    摘要翻译： 实施例描述了无线通信系统中的变化的传输时间间隔。 根据一些实施例是用于分配传输时间间隔的方法。 该方法可以包括测量由至少一个无线设备传送的分组的信道条件和/或数据速率。 部分地基于数据速率和/或信道条件信息，可以确定是否为分组规划长的传输时间间隔或短的传输时间间隔。 如果信道条件差和/或数据速率低，则可以调度长传输时间间隔。 如果信道条件良好和/或数据速率高或快，则可以调度短传输时间间隔。 可以为多个无线设备重复该方法。 还包括支持长传输时间间隔和短传输时间间隔的替代交错结构。

    Providing antenna diversity in a wireless communication system
    55.
    发明授权
    Providing antenna diversity in a wireless communication system 有权
    在无线通信系统中提供天线分集

    公开(公告)号：US08885744B2

    公开(公告)日：2014-11-11

    申请号：US11937472

    申请日：2007-11-08

    申请人： Tamer Kadous ,  Naga Bhushan ,  Alexei Gorokhov

    发明人： Tamer Kadous ,  Naga Bhushan ,  Alexei Gorokhov

    IPC分类号： H04L1/02 ,  H04B7/06 ,  H04L1/00 ,  H04B7/04 ,  H04L5/00 ,  H04L25/02 ,  H04L25/03

    CPC分类号： H04L1/0026 ,  H04B7/0417 ,  H04B7/0632 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/006 ,  H04L5/0071 ,  H04L5/0091 ,  H04L25/0228 ,  H04L25/0242 ,  H04L25/03343 ,  H04L2025/03426

    摘要： Systems and methodologies are described that facilitate cycling across antennas for channel quality information (CQI) computation and data transmission in a multiple-input multiple-output (MIMO) wireless communication environment. Pilots can be obtained by a wireless terminal. Further, virtual antennas that can be supported by a channel can be identified based upon an analysis of the pilots. Moreover, CQI computations can be effectuated for each of the supported virtual antennas; thereafter, the CQI data can be sent to a base station for data transmission scheduling. Additionally, the base station can schedule transmission based upon the CQI data and/or fairness considerations. When scheduled, data transmission can occur by cycling across the supported virtual antennas.

    摘要翻译： 描述了有助于在多输入多输出（MIMO）无线通信环境中跨越天线进行信道质量信息（CQI）计算和数据传输的系统和方法。 飞行员可以通过无线终端获得。 此外，可以基于对导频的分析来识别可以由信道支持的虚拟天线。 此外，可以为每个所支持的虚拟天线实现CQI计算; 此后，CQI数据可以被发送到用于数据传输调度的基站。 此外，基站可以基于CQI数据和/或公平性考虑来调度传输。 当调度时，可以通过在支持的虚拟天线之间循环来进行数据传输。

    Multiple modulation schemes in single rate layering wireless communication systems
    56.
    发明授权
    Multiple modulation schemes in single rate layering wireless communication systems 有权
    单速率分层无线通信系统中的多调制方案

    公开(公告)号：US08457152B2

    公开(公告)日：2013-06-04

    申请号：US11155204

    申请日：2005-06-16

    申请人： Alexei Gorokhov ,  Avneesh Agrawal ,  Dhananjay Gore ,  Tamer Kadous

    发明人： Alexei Gorokhov ,  Avneesh Agrawal ,  Dhananjay Gore ,  Tamer Kadous

    IPC分类号： H04J3/16 ,  H04J9/00

    CPC分类号： H04L1/005 ,  H04L1/0003 ,  H04L1/0041 ,  H04L1/06

    摘要： A MIMO communication system is adapted to encode multiple data streams at the same adaptable rate. Accordingly, the set of all possible modulation/rate combinations to all modulations with common rates is decreased thus resulting in the reduction of the number of possible packet formats carrying the data streams. Rate prediction is made more error-resilient, in part, due to the averaging over all information rates. Furthermore, the signaling overhead of the packets is reduced. Therefore, the tradeoff between the desired transmission rate granularity on the one hand, and robustness/signaling overhead on the other hand, is controlled by adjusting the coding rate.

    摘要翻译： MIMO通信系统适于以相同的可适应速率对多个数据流进行编码。 因此，对具有公共速率的所有调制的所有可能的调制/速率组合的集合被减少，从而导致承载数据流的可能分组格式的数量的减少。 速率预测更具有弹性，部分原因是由于所有信息速率的平均值。 此外，分组的信令开销减小。 因此，通过调整编码率来控制一方面期望的传输速率粒度与鲁棒性/信令开销之间的权衡。