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132 条记录 (耗时 0.037 秒)

    Random number generation for encrypting cellular communications
    121.
    发明授权
    Random number generation for encrypting cellular communications 有权
    用于加密蜂窝通信的随机数生成

    公开(公告)号：US07509500B2

    公开(公告)日：2009-03-24

    申请号：US10901544

    申请日：2004-07-28

    申请人： Sandip Sarkar

    发明人： Sandip Sarkar

    IPC分类号： H04L9/32 ,  H04L9/00 ,  H04K1/00

    CPC分类号： G06F7/588 ,  H04L9/0662 ,  H04L2209/12 ,  H04L2209/805

    摘要： In wireless communications, transmission devices require continuous supplies of random data for encryption processes. The invention provides a method for generating a continuous pool of truly random data with hardware that is already available in conventional CDMA phones.

    摘要翻译： 在无线通信中，传输设备需要连续提供用于加密过程的随机数据。 本发明提供一种用常规CDMA手机已经可用的用硬件产生真实随机数据的连续池的方法。

    METHOD AND APPARATUS FOR USING A MAC PROTOCOL FOR BROADCAST
    122.
    发明申请
    METHOD AND APPARATUS FOR USING A MAC PROTOCOL FOR BROADCAST 有权
    使用MAC协议广播的方法和装置

    公开(公告)号：US20080261582A1

    公开(公告)日：2008-10-23

    申请号：US12056033

    申请日：2008-03-26

    申请人： Sandip Sarkar ,  Naga Bhushan ,  Tamer Kadous ,  Aamod Khandekar ,  Parag Arun Agashe

    发明人： Sandip Sarkar ,  Naga Bhushan ,  Tamer Kadous ,  Aamod Khandekar ,  Parag Arun Agashe

    IPC分类号： H04Q7/20 ,  H04M1/00

    CPC分类号： H04L27/3488 ,  H04L12/1886 ,  H04L12/189 ,  H04L27/2602 ,  H04W72/005

    摘要： Method and apparatus that provide for broadcast multicast services in an ultra mobile broadband network are disclosed. A broadcast transmission structure provides for efficient indexing of subbands reserved for BCMCS. Transmissions on the logical channels are segmented into error control blocks beginning with zero or one MAC packet received by a MAC layer. A transmitting entity appends parameters relating to content change within a next ultraframe at end of every broadcast packet that is not a stuffing packet. A mapping message of multiple Physical Layer groups addresses a single logical channel when SFN (Single Frequency Network) coverage of an associated subband group is different from SFN coverage of the logical channel.

    摘要翻译： 公开了在超移动宽带网络中提供广播多播服务的方法和装置。 广播传输结构提供了为BCMCS保留的子带的有效索引。 在逻辑信道上的传输被分割为以由MAC层接收的零个或一个MAC分组开始的错误控制块。 发送实体在不是填充分组的每个广播分组的结尾附加在下一个超帧内的与内容变化相关的参数。 当相关联的子带组的SFN（单频网络）覆盖不同于逻辑信道的SFN覆盖时，多个物理层组的映射消息寻址单个逻辑信道。

    Operation of a forward link acknowledgement channel for the reverse link data
    123.
    发明授权
    Operation of a forward link acknowledgement channel for the reverse link data 有权
    用于反向链路数据的前向链路确认信道的操作

    公开(公告)号：US07437648B2

    公开(公告)日：2008-10-14

    申请号：US11349366

    申请日：2006-02-06

    申请人： Sandip Sarkar ,  Tao Chen ,  Edward G. Tiedemann, Jr. ,  Peter Gaal

    发明人： Sandip Sarkar ,  Tao Chen ,  Edward G. Tiedemann, Jr. ,  Peter Gaal

    IPC分类号： H04L1/18

    CPC分类号： H04L1/1812 ,  H04B17/24 ,  H04B17/309 ,  H04J13/0048 ,  H04L1/0026 ,  H04L1/0034 ,  H04L1/0057 ,  H04L1/0073 ,  H04L1/08 ,  H04L1/1607 ,  H04L1/1671 ,  H04L1/1825 ,  H04L1/1845 ,  H04L1/1854 ,  H04L1/1858 ,  H04L2001/0093 ,  H04L2001/125 ,  H04W52/48

    摘要： An acknowledgement method in a wireless communication system. Initially, a reverse supplemental channel (R-SCH) frame is received at a base station. The base station then transmits an acknowledgement (ACK) signal if quality of the received R-SCH frame is indicated as being good. A negative acknowledgement (NAK) signal is transmitted only if the received data frame is indicated as being bad but has enough energy such that, if combined with energy from retransmission of the data frame, it would be sufficient to permit correct decoding of the data frame. If the best base station is known, the acknowledgement method may reverse the transmission of the acknowledgement signals for the best base station so that only NAK signal is sent. A positive acknowledgement is assumed in the absence of an acknowledgement. This is done to minimize the transmit power requirements.

    摘要翻译： 无线通信系统中的确认方法。 最初，在基站接收到反向补充信道（R-SCH）帧。 然后，如果接收的R-SCH帧的质量被表示为良好，则基站然后发送确认（ACK）信号。 仅当所接收的数据帧被表示为坏但具有足够的能量使得如果与来自数据帧的重传的能量相结合时才允许数据帧的正确解码就足够了，才发送否定确认（NAK）信号 。 如果最好的基站是已知的，则确认方法可以反转用于最佳基站的确认信号的发送，从而仅发送NAK信号。 在没有确认的情况下假设肯定确认。 这样做是为了尽量减少发射功率的要求。

    SYSTEMS AND METHODS FOR PERFORMING OUTER LOOP POWER CONTROL IN WIRELESS COMMUNICATION SYSTEMS
    124.
    发明申请
    SYSTEMS AND METHODS FOR PERFORMING OUTER LOOP POWER CONTROL IN WIRELESS COMMUNICATION SYSTEMS 审中-公开
    在无线通信系统中执行外环功率控制的系统和方法

    公开(公告)号：US20080194286A1

    公开(公告)日：2008-08-14

    申请号：US12107268

    申请日：2008-04-22

    申请人： Tao Chen ,  Stein Lundby ,  Sandip Sarkar ,  Yu-Cheun Jou

    发明人： Tao Chen ,  Stein Lundby ,  Sandip Sarkar ,  Yu-Cheun Jou

    IPC分类号： H04B7/00

    CPC分类号： H04W52/38 ,  H04W52/44

    摘要： Systems and methods for controlling the power level for a mobile station during periods when no data is being transmitted by the mobile station. In one embodiment, data is intermittently transmitted from a mobile station to a base station on a reverse-link traffic channel. When data is being transmitted on the traffic channel, the transmitted data is used by the base station to perform power control operations (e.g., incrementing or decrementing the mobile station's power level, based upon comparison of a received SNR to a target SNR). When no data is being transmitted on the traffic channel, a “zero-rate indicator” is transmitted on the rate indicator channel. The zero-rate indicator is used by the base station to perform power control. Power control based on the zero-rate indicator may use velocity profiles, reliability metrics or other techniques to control adjustment of the power level.

    摘要翻译： 在移动台没有发送数据的时段期间控制移动台的功率电平的系统和方法。 在一个实施例中，数据在反向链路业务信道上从移动站间歇地发送到基站。 当在业务信道上发送数据时，基站使用发送的数据来执行功率控制操作（例如，基于接收到的SNR与目标SNR的比较来增加或减少移动台的功率电平）。 当业务信道上没有发送数据时，在速率指示符信道上发送“零速率指示符”。 零速率指示器由基站用于执行功率控制。 基于零速率指示器的功率控制可以使用速度曲线，可靠性度量或其他技术来控制功率水平的调节。

    Channel allocations in a communications system
    125.
    发明授权
    Channel allocations in a communications system 有权
    通信系统中的信道分配

    公开(公告)号：US07298718B2

    公开(公告)日：2007-11-20

    申请号：US10106945

    申请日：2002-03-25

    申请人： Joseph P. Odenwalder ,  Yongbin Wei ,  Edward G. Tiedemann, Jr. ,  Stein A. Lundby ,  David Puig-Oses ,  Sandip Sarkar

    发明人： Joseph P. Odenwalder ,  Yongbin Wei ,  Edward G. Tiedemann, Jr. ,  Stein A. Lundby ,  David Puig-Oses ,  Sandip Sarkar

    IPC分类号： H04Q7/00

    CPC分类号： H04L1/0046 ,  H04L1/0007 ,  H04L1/0061 ,  H04L1/0071 ,  H04L1/08 ,  H04W72/1284

    摘要： Systems and techniques for communications include calculating a value from data, transmitting the value and data over at least one time slot, receiving the transmission, recalculating the value from the received data, and determining the number of time slots of the transmission from the calculated and recalculated values. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.

    摘要翻译： 用于通信的系统和技术包括从数据计算值，在至少一个时隙上发送该值和数据，接收传输，从接收到的数据重新计算该值，以及从计算出的和 重新计算值。 要强调的是，该摘要被提供以符合要求抽象的规则，这将允许搜索者或其他读者快速确定技术公开的主题。 提交它的理解是，它不会用于解释或限制权利要求的范围或含义。

    Modified power control for hybrid ARQ on the reverse link
    126.
    发明授权
    Modified power control for hybrid ARQ on the reverse link 有权
    混合ARQ在反向链路上修改功率控制

    公开(公告)号：US07155249B2

    公开(公告)日：2006-12-26

    申请号：US10341319

    申请日：2003-01-10

    申请人： Sandip Sarkar ,  Tao Chen ,  Edward G. Tiedemann, Jr.

    发明人： Sandip Sarkar ,  Tao Chen ,  Edward G. Tiedemann, Jr.

    IPC分类号： H04B7/00

    CPC分类号： H04W52/50 ,  H04W52/40 ,  H04W52/48

    摘要： A method for power control in a wireless communication system. An initial transmission of a data frame in the reverse link is received, and a first energy level of the data frame is measured. An energy deficit in the first energy level is then measured if the first energy level is insufficient to correctly decode the data frame, so that when the data frame is retransmitted with a second energy level equal to a difference between the first energy level and the energy deficit, the data frame can be correctly decoded with combined energy of the first energy level and the second energy level.

    摘要翻译： 一种用于无线通信系统中功率控制的方法。 接收反向链路中的数据帧的初始传输，并且测量数据帧的第一能级。 如果第一能级不足以正确地解码数据帧，则测量第一能级中的能量缺失，以便当数据帧以等于第一能量级与能量之间的差的第二能级重发时 可以用第一能级和第二能量级的组合能量正确解码数据帧。

    Method and system for energy based frame rate determination
    128.
    发明授权
    Method and system for energy based frame rate determination 失效
    基于能量的帧速率确定方法和系统

    公开(公告)号：US06934318B2

    公开(公告)日：2005-08-23

    申请号：US09748056

    申请日：2000-12-22

    申请人： Sandip Sarkar

    发明人： Sandip Sarkar

    IPC分类号： H03M13/03 ,  H04L1/00 ,  H04L1/08 ,  H04L27/30

    CPC分类号： H04L1/0059 ,  H03M13/03 ,  H04L1/0046 ,  H04L1/08

    摘要： A sequence of code symbols is supplied to a rate decision block. The sequence of code symbols can be output from a Viterbi decoder, and may correspond to block encoded and convolutional encoded output from a vocoder, produced in data frames at varying data rates, or frame rates, unknown to the decoder or to the rate decision block. The rate decision block determines a number of frame energies based on the sequence of code symbols, where each frame energy corresponds to a tentative frame rate. Each frame energy can be determined, by measuring the power and duration of each code symbol based on the tentative frame rate, to determine the tentative energy of each code symbol in a frame, and then adding the tentative energies of all the code symbols in the frame. The rate decision block determines a final frame rate when the frame energies meets a desired condition.

    摘要翻译： 代码符号序列被提供给速率判定块。 代码符号的序列可以从维特比解码器输出，并且可以对应于来自声码器的块编码和卷积编码的输出，在数据帧中以变化的数据速率或解码器未知的帧速率或速率判定块 。 速率决定块基于代码符号的序列来确定帧能量的数量，其中每个帧能量对应于暂定帧速率。 可以通过基于暂定帧速率测量每个码元的功率和持续时间来确定每帧能量，以确定帧中每个码符号的暂定能量，然后将所有码符号的暂定能量加到 帧。 当帧能量满足期望条件时，速率判定块确定最终帧速率。

    Combining grant, acknowledgement, and rate control commands
    129.
    发明申请
    Combining grant, acknowledgement, and rate control commands 有权
    组合授权，确认和速率控制命令

    公开(公告)号：US20050030911A1

    公开(公告)日：2005-02-10

    申请号：US10780824

    申请日：2004-02-17

    申请人： Edward Tiedemann ,  Aleksandar Damnjanovic ,  Avinash Jain ,  Durga Malladi ,  David Oses ,  Peter Gaal ,  Stein Lundby ,  Sandip Sarkar ,  Tao Chen ,  Yongbin Wei ,  Serge Willenegger

    发明人： Edward Tiedemann ,  Aleksandar Damnjanovic ,  Avinash Jain ,  Durga Malladi ,  David Oses ,  Peter Gaal ,  Stein Lundby ,  Sandip Sarkar ,  Tao Chen ,  Yongbin Wei ,  Serge Willenegger

    IPC分类号： H04B7/26 ,  H04L1/00 ,  H04L1/16 ,  H04L1/18 ,  H04W28/22 ,  H04W72/14 ,  H04B7/005 ,  H04B7/204

    CPC分类号： H04W72/14 ,  H04B7/264 ,  H04L1/0026 ,  H04L1/1671 ,  H04L1/1819

    摘要： Embodiments disclosed herein address the need in the art for reduced overhead control with the ability to adjust transmission rates as necessary. In one aspect, a first signal indicates an acknowledgement of a decoded subpacket and whether or not a rate control command is generated, and a second signal conditionally indicates the rate control command when one is generated. In another aspect, a grant may be generated concurrently with the acknowledgement. In yet another aspect, a mobile station monitors the first signal, conditionally monitors the second signal as indicated by the first signal, and may monitor a third signal comprising a grant. In yet another aspect, one or more base stations transmit one or more of the various signals. Various other aspects are also presented. These aspects have the benefit of providing the flexibility of grant-based control while utilizing lower overhead when rate control commands are used, thus increasing system utilization, increasing capacity and throughput.

    摘要翻译： 本文公开的实施例解决了本领域中需要减少开销控制的需要，其具有根据需要调整传输速率的能力。 一方面，第一信号表示解码子包的确认，以及是否生成速率控制指令，第二信号在生成一个信号时有条件地指示速率控制指令。 在另一方面，可以与确认同时产生许可。 在另一方面，移动站监视第一信号，有条件地监视由第一信号指示的第二信号，并且可以监视包括授权的第三信号。 在另一方面，一个或多个基站发射各种信号中的一个或多个。 还提出了各种其他方面。 这些方面具有提供基于授权的控制的灵活性的优点，同时在使用速率控制命令时利用较低的开销，从而提高系统利用率，增加容量和吞吐量。