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    BROADCAST AND MULTICAST SERVICES IN WIRELESS COMMUNICATION SYSTEMS
    81.
    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。

    BANDWIDTH SEGMENTATION AND MULTI-SEGMENT OPERATION AND CONTROL
    82.
    发明申请
    BANDWIDTH SEGMENTATION AND MULTI-SEGMENT OPERATION AND CONTROL 有权
    带宽分段和多段操作与控制

    公开(公告)号：US20100260081A1

    公开(公告)日：2010-10-14

    申请号：US12636589

    申请日：2009-12-11

    申请人： Jelena M. Damnjanovic ,  Juan Montojo ,  Sandip Sarkar

    发明人： Jelena M. Damnjanovic ,  Juan Montojo ,  Sandip Sarkar

    IPC分类号： H04B7/00 ,  H04J3/00 ,  H04J1/00

    CPC分类号： H04L5/0053 ,  H04L5/0044

    摘要： Bandwidth segmentation according to a one carrier approach conveyed in a main information block (MIB) supports a plurality of contiguous frequency segments with one frequency segment seen by legacy terminals and the whole bandwidth seen by advanced terminals. Control regions either within data regions of a legacy frequency band segment or with one or two contiguous advanced frequency band segments separated by the legacy frequency band segment are communicated to advanced terminals in system information blocks (SIBs) or conveyed to an advanced UE by dedicated signaling.

    摘要翻译： 根据在主信息块（MIB）中传送的一载波方法的带宽分段支持多个连续的频段，其中由传统终端看到的一个频段和高级终端看到的整个带宽。 在遗留频带段的数据区域内或由传统频段段分隔的一个或两个连续的高级频带段之间的控制区域被传送到系统信息块（SIB）中的高级终端，或通过专用信令传送到高级UE 。

    CONGESTION CONTROL IN A WIRELESS DATA NETWORK
    83.
    发明申请
    CONGESTION CONTROL IN A WIRELESS DATA NETWORK 有权
    无线数据网络中的约束控制

    公开(公告)号：US20100135156A1

    公开(公告)日：2010-06-03

    申请号：US12641036

    申请日：2009-12-17

    申请人： Sandip Sarkar

    发明人： Sandip Sarkar

    IPC分类号： H04W28/02

    CPC分类号： H04W72/1226 ,  H04W24/10 ,  H04W28/22 ,  H04W72/042 ,  H04W72/0426 ,  H04W72/0486 ,  H04W74/00

    摘要： Techniques for congestion control are disclosed. In an embodiment, a base station allocates a shared resource using a combination of zero or more individual grants and zero or more common grants, and generates a multi-valued busy signal in response to loading conditions that exceed a pre-determined level. In another embodiment, a subset of transmitting mobile stations reduce their transmission rate in response to a multi-valued busy signal. The subset may include autonomous transmission, commonly granted transmission, individually granted transmission, or any combination thereof. In various embodiments, rate adjustment may be probabilistic or deterministic. In an embodiment, a rate table is deployed, and a mobile station decreases or increases the transmission rate from one rate in the table to a lower or higher rate in the table, respectively, in response to the busy signal. Various other aspects provide efficient congestion control, avoiding excessive interference and increasing capacity.

    摘要翻译： 公开了拥塞控制技术。 在一个实施例中，基站使用零个或多个单独授权和零个或更多个公共授权的组合来分配共享资源，并且响应于超过预定电平的负载条件而生成多值繁忙信号。 在另一个实施例中，响应于多值忙信号，发送移动台的子集降低其传输速率。 该子集可以包括自主传输，通常授权的传输，单独授权的传输或其任何组合。 在各种实施例中，速率调整可以是概率的或确定的。 在一个实施例中，部署速率表，并且移动台响应于忙信号，分别将传输速率从表中的一个速率降低或增加到表中的较低或更高速率。 各种其他方面提供有效的拥塞控制，避免过度干扰和增加容量。

    Congestion control in a wireless data network
    86.
    发明授权
    Congestion control in a wireless data network 有权
    无线数据网络中的拥塞控制

    公开(公告)号：US07660282B2

    公开(公告)日：2010-02-09

    申请号：US10646242

    申请日：2003-08-22

    申请人： Sandip Sarkar

    发明人： Sandip Sarkar

    IPC分类号： H04Q7/00

    CPC分类号： H04W72/1226 ,  H04W24/10 ,  H04W28/22 ,  H04W72/042 ,  H04W72/0426 ,  H04W72/0486 ,  H04W74/00

    摘要： Techniques for congestion control are disclosed. In one embodiment, a base station allocates a shared resource using a combination of zero or more individual grants and zero or more common grants, and generates a busy signal in response to loading conditions that exceed a pre-determined level. In another embodiment, a subset of transmitting mobile stations reduce their transmission rate in response to a busy signal. The subset may include autonomous transmission, commonly granted transmission, individually granted transmission, or any combination thereof. In various embodiments, rate adjustment may be probabilistic or deterministic. In one embodiment, a rate table is deployed, and a mobile station decreases or increases the transmission rate from one rate in the table to a lower or higher rate in the table, respectively, in response to the busy signal. Various other aspects are also presented. These aspects have the benefit of providing efficient congestion control, avoiding excessive interference and increasing capacity.

    摘要翻译： 公开了拥塞控制技术。 在一个实施例中，基站使用零个或多个单独授权和零个或更多个公共授权的组合来分配共享资源，并且响应于超过预定电平的负载条件而生成忙信号。 在另一个实施例中，响应于忙信号，发送移动台的子集降低其传输速率。 该子集可以包括自主传输，通常授权的传输，单独授权的传输或其任何组合。 在各种实施例中，速率调整可以是概率的或确定的。 在一个实施例中，部署速率表，并且移动台响应于忙信号，分别将传输速率从表中的一个速率降低或增加到表中的较低或较高速率。 还提出了各种其他方面。 这些方面具有提供有效的拥塞控制，避免过度干扰和增加容量的好处。

    TDD OPERATION IN WIRELESS COMMUNICATION SYSTEMS
    87.
    发明申请
    TDD OPERATION IN WIRELESS COMMUNICATION SYSTEMS 失效
    无线通信系统中的TDD操作

    公开(公告)号：US20090180435A1

    公开(公告)日：2009-07-16

    申请号：US12349251

    申请日：2009-01-06

    申请人： Sandip Sarkar

    发明人： Sandip Sarkar

    IPC分类号： H04W72/00

    CPC分类号： H04W56/0035 ,  H04L5/14 ,  H04W72/04

    摘要： A method provides a wireless frame protocol. The method includes communicating a transmission interval that facilitates switching between a downlink portion and an uplink portion of a wireless communications channel. The method employs one or more guard periods during the transmission interval to mitigate overlap of transmitting frequencies between the downlink and uplink portions of the wireless communications channel.

    摘要翻译： 一种方法提供无线帧协议。 该方法包括传送有助于在无线通信信道的下行链路部分和上行链路部分之间切换的传输间隔。 该方法在传输间隔期间采用一个或多个保护周期以减轻无线通信信道的下行链路和上行链路部分之间的发射频率的重叠。

    CALIBRATION AND BEAMFORMING IN A WIRELESS COMMUNICATION SYSTEM
    89.
    发明申请
    CALIBRATION AND BEAMFORMING IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
    无线通信系统中的校准和射束

    公开(公告)号：US20090093222A1

    公开(公告)日：2009-04-09

    申请号：US12244629

    申请日：2008-10-02

    申请人： Sandip Sarkar

    发明人： Sandip Sarkar

    IPC分类号： H04B1/02 ,  H04B17/00

    CPC分类号： H04B7/0617 ,  H04B7/0628 ,  H04B17/21

    摘要： Techniques for performing calibration and beamforming in a wireless communication system are described. In an aspect, a Node B may periodically perform calibration in each calibration interval with a set of UEs to obtain a calibration vector for the Node B. The Node B may apply the calibration vector to account for mismatches in the responses of the transmit and receive chains at the Node B. In another aspect, the Node B may perform beamforming to a UE by taking into account gain imbalance for multiple antennas at the UE. The Node B may determine a precoding matrix for beamforming by taking into account gain imbalance due to (i) different automatic gain control (AGC) gains for receive chains at the UE, (ii) different power amplifier (PA) gains for transmit chains at the UE, and/or (iii) different antenna gains for multiple antennas at the UE.

    摘要翻译： 描述了在无线通信系统中执行校准和波束成形的技术。 在一方面，节点B可以在每个校准间隔内周期性地执行与一组UE的校准，以获得用于节点B的校准向量。节点B可以应用校准向量来解决发送和接收的响应中的不匹配 在另一方面，节点B可以通过考虑UE处的多个天线的增益不平衡来向UE执行波束赋形。 节点B可以通过考虑由于（i）UE处的接收链的不同的自动增益控制（AGC）增益而考虑增益不平衡来确定用于波束成形的预编码矩阵，（ii）用于发射链的不同功率放大器（PA）增益 UE，和/或（iii）UE处的多个天线的不同天线增益。

    Method for handoff between an asynchronous CDMA base station and a synchronous CDMA base station
    90.
    发明授权
    Method for handoff between an asynchronous CDMA base station and a synchronous CDMA base station 失效
    异步CDMA基站与同步CDMA基站之间切换的方法

    公开(公告)号：US07391753B2

    公开(公告)日：2008-06-24

    申请号：US10682046

    申请日：2003-10-08

    申请人： Edward G. Tiedemann, Jr. ,  Daisuke Terasawa ,  Sandip Sarkar

    发明人： Edward G. Tiedemann, Jr. ,  Daisuke Terasawa ,  Sandip Sarkar

    IPC分类号： H04Q7/00 ,  H04Q7/20 ,  H04B7/216

    CPC分类号： H04B1/7075 ,  H04B2201/70701 ,  H04W36/0083 ,  H04W36/14

    摘要： An improved method for facilitating handoff between an asynchronous and a synchronous base station. A method for determining a pilot channel PN offset of a pilot channel transmitted by a wireless base station. In a first embodiment, the method includes correlating a PN sequence with a received pilot signal to acquire a PN frame timing, receiving at least one search code burst aligned with the PN frame timing, the at least one search code burst signifying the pilot channel PN offset, and comparing the at least one search code burst to a set of codewords, each codeword representing a predetermined PN offset. From the search code bursts, the mobile station is able to quickly determine the PN offset of the transmitting base station, and thereby identify it. Methods for transmitting a complementary set of forward link channels are also disclosed.

    摘要翻译： 一种用于促进异步和同步基站之间切换的改进方法。 一种用于确定由无线基站发送的导频信道的导频信道PN偏移的方法。 在第一实施例中，该方法包括将PN序列与接收到的导频信号相关联以获取PN帧定时，接收与PN帧定时对准的至少一个搜索码突发，表示导频信道PN的至少一个搜索码突发 偏移，并且将所述至少一个搜索码突发与一组码字进行比较，每个码字表示预定的PN偏移。 从搜索码突发中，移动站能够快速地确定发射基站的PN偏移，从而识别它。 还公开了用于发送互补的一组前向链路信道的方法。