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397 条记录 (耗时 0.052 秒)

    Open-loop rate control for a TDD communication system
    81.
    发明申请
    Open-loop rate control for a TDD communication system 有权

    公开(公告)号：US20060104340A1

    公开(公告)日：2006-05-18

    申请号：US11175787

    申请日：2005-07-05

    申请人： Jay Walton ,  Shravan Surineni ,  Arnaud Maylan ,  Sanjiv Nanda

    发明人： Jay Walton ,  Shravan Surineni ,  Arnaud Maylan ,  Sanjiv Nanda

    IPC分类号： H04B17/00

    CPC分类号： H04L1/0015 ,  H04B17/309 ,  H04L1/0002 ,  H04L1/1607 ,  Y02D50/10

    摘要： Techniques for performing open-loop rate control in a TDD communication system are described. The channel quality of a first link is estimated based on a transmission received via the first link. The channel quality of a second link is estimated based on the estimated channel quality of the first link and an asymmetric parameter. At least one rate for a data transmission via the second link is selected based on the estimated channel quality of the second link. The estimated channel quality for each link may be given by a set of SNR estimates for a set of transmission channels on that link. The asymmetric parameter may be determined based on (1) the capabilities (e.g., transmit power, receiver noise figure, and number of antennas) of the transmitting and receiving stations or (2) received SNRs for the first and second links.

    Method for interleaving of half rate channels suitable for half duplex operation and statistical multiplexing
    83.
    发明授权
    Method for interleaving of half rate channels suitable for half duplex operation and statistical multiplexing 有权
    适用于半双工操作和统计复用的半速率通道交织方法

    公开(公告)号：US07006477B1

    公开(公告)日：2006-02-28

    申请号：US09650787

    申请日：2000-08-30

    申请人： Krishna Balachandran ,  Richard Paul Ejzak ,  Sanjiv Nanda

    发明人： Krishna Balachandran ,  Richard Paul Ejzak ,  Sanjiv Nanda

    IPC分类号： H04J3/00 ,  H04B7/212

    CPC分类号： H04B7/2659

    摘要： A system and method for providing wireless time division multiplexed communications in which time is divided into a plurality of frames and each frame is divided into N data bursts, which has a first multiplexer defining a channel as a series of bursts that occur periodically every N bursts once per frame; a second multiplexer defining a sub-channel as every Mth burst of said channel; and a transmitter transmitting said channel and sub-channel from a first station to a second station. A new interleaving 0246/1357 method is used by the system which is just as good as the known 0123/4567 method when ideal frequency hopping is used, and 0246/1357 has better performance when non-ideal frequency hopping or no frequency hopping is used.

    摘要翻译： 一种用于提供无线时分多路复用通信的系统和方法，其中时间被分成多个帧，并且每个帧被划分为N个数据突发，其具有将每个N个突发周期性地出现的一系列脉冲串定义为一个信道的第一多路复用器 每帧一次; 第二多路复用器，将所述信道的每第M个突发定义为子信道; 以及从第一站向第二站发送所述信道和子信道的发射机。 当使用理想跳频时，系统使用新的交错0246/1357方法，其与已知的0123/4567方法一样好，当使用非理想跳频或不跳频时，0246/1357具有更好的性能 。

    Time-hopping systems and techniques for wireless communications
    85.
    发明申请
    Time-hopping systems and techniques for wireless communications 失效
    跳频系统和无线通信技术

    公开(公告)号：US20050152329A1

    公开(公告)日：2005-07-14

    申请号：US10754789

    申请日：2004-01-08

    申请人： Ranganathan Krishnan ,  Joseph Burke ,  Amol Rajkotia ,  Sanjiv Nanda

    发明人： Ranganathan Krishnan ,  Joseph Burke ,  Amol Rajkotia ,  Sanjiv Nanda

    IPC分类号： H04B7/26 ,  H04L12/56 ,  H04J3/00

    CPC分类号： H04W72/1231 ,  H04W84/18

    摘要： Systems and techniques are disclosed relating to wireless communications. The systems and techniques involve wireless communications wherein a process, module or communications terminal schedules communications over a frame having a plurality of time slots. The process, module or communications terminal may be used to assign information to be transmitted between two terminals to a block of the time slots within a frame, and reordering the time slot assignments within the frame using a permutation function, the permutation function being a function of frame count.

    摘要翻译： 公开了与无线通信有关的系统和技术。 系统和技术涉及无线通信，其中过程，模块或通信终端通过具有多个时隙的帧来调度通信。 过程，模块或通信终端可以用于将要在两个终端之间传送的信息分配给帧内的时隙的块，并且使用置换功能重新排序帧内的时隙分配，该置换功能是功能 的帧数。

    High speed media access control and direct link protocol
    86.
    发明申请
    High speed media access control and direct link protocol 有权
    高速媒体访问控制和直接链路协议

    公开(公告)号：US20050135295A1

    公开(公告)日：2005-06-23

    申请号：US10964314

    申请日：2004-10-13

    申请人： Jay Walton ,  Sanjiv Nanda

    发明人： Jay Walton ,  Sanjiv Nanda

    IPC分类号： H04B7/005 ,  H04L12/28 ,  H04L12/56 ,  H04L12/66 ,  H04L29/06 ,  H04L29/08 ,  H04W52/38 ,  H04W72/04 ,  H04W72/12

    CPC分类号： H04W74/0808 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0091 ,  H04L12/66 ,  H04L27/2605 ,  H04L29/06 ,  H04L69/08 ,  H04L69/24 ,  H04L69/324 ,  H04W52/383 ,  H04W72/0406 ,  H04W72/12 ,  H04W74/00 ,  H04W74/06 ,  H04W74/0816 ,  H04W84/12

    摘要： Techniques for MAC processing for efficient use of high throughput systems that may be backward compatible with various types of legacy systems are disclosed. In one aspect, a data frame is formed comprising a common portion for transmission in a format receivable by various stations, such as access points and remote stations. The data frame also comprises a dedicated portion, formatted for transmission to a specified remote station. In another aspect, the common portion is unsteered, and the dedicated portion is steered. In another aspect, an access point schedules an allocation in response to a data indication included in a common portion of a data frame transmitted from one remote station to another. In another aspect, a first station transmits a reference to a second station, which measures the reference and generates feedback therefrom.

    摘要翻译： 公开了用于有效利用可能与各种类型的传统系统向后兼容的高吞吐量系统的MAC处理技术。 在一个方面，形成数据帧，其包括用于以各种站点接收的格式（例如接入点和远程站）进行传输的公共部分。 数据帧还包括格式化用于传输到指定的远程站的专用部分。 在另一方面，公共部分是非导向的，并且专用部分被转向。 在另一方面，接入点响应于包括在从一个远程站发送到另一个远程站的数据帧的公共部分中的数据指示来调度分配。 在另一方面，第一站发送对第二站的参考，第二站测量参考并从其产生反馈。

    Method and apparatus for controlling power in a forward link of a CDMA telecommunications system
    89.
    发明授权
    Method and apparatus for controlling power in a forward link of a CDMA telecommunications system 失效
    用于控制CDMA电信系统的前向链路中的功率的方法和装置

    公开(公告)号：US5842113A

    公开(公告)日：1998-11-24

    申请号：US631721

    申请日：1996-04-10

    申请人： Sanjiv Nanda ,  Kiran M. Rege

    发明人： Sanjiv Nanda ,  Kiran M. Rege

    IPC分类号： H04B1/04 ,  H04B7/005 ,  H04B7/26 ,  H04B1/00

    CPC分类号： H04W52/12 ,  H04W52/267 ,  H04W52/20 ,  H04W52/26 ,  Y02B60/50

    摘要： A facility is provided for more efficiently controlling transmitted power in a forward link of CDMA telecommunications system. This is done by offsetting a power reference level that adjusts the level of the transmitted power using an power offset selected as a function of a transmission rate specified for the transmission of a coded frame. The coded frame is then transmitted at a power level selected as function of the adjusted power reference level, rather than the unadjusted level. Such efficiently is particularly noticeable when there is transition from one frame transmission rate to another such rate and vice-versa.

    摘要翻译： 提供了一种用于更有效地控制CDMA电信系统的前向链路中的发射功率的设施。 这是通过偏移功率参考电平来完成的，该功率参考电平使用根据为传输编码帧指定的传输速率选择的功率偏移来调整发射功率的电平。 编码帧然后以被调整的功率参考电平的功能而不是未调整电平的功率电平发送。 当从一个帧传输速率转换到另一帧传输速率，反之亦然时，这样有效地是特别显着的。