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    Method and apparatus for encrypting data in a wireless communication system
    4.
    发明申请
    Method and apparatus for encrypting data in a wireless communication system 失效

    公开(公告)号：US20030185390A1

    公开(公告)日：2003-10-02

    申请号：US10434749

    申请日：2003-05-09

    Applicant: Qualcomm, Inc.

    Inventor： Gregory G. Rose

    IPC: H04L009/00

    CPC classification number: H04L9/06 ,  H04L9/0618

    Abstract: In a communications system, a method of transforming a set of message signals representing a message comprising the steps of first encoding one of the set of message signals in accordance with a first keyed transformation, a second encoding of the one of the set of message signals in accordance with at least one additional keyed transformation, a third encoding of the one of the set of message signals in accordance with a self inverting transformation in which at least one of the set of message signals is altered, a fourth encoding of the one of the set of message signals in accordance with at least one additional inverse keyed transformation wherein each of the at least one additional inverse keyed transformation is a corresponding inverse of at least one additional keyed transformation, and fifth encoding the one of the set of message signals in accordance with first inverse keyed transformation wherein the first inverse keyed transformation is the inverse of the first keyed transformation.

    Method and apparatus for adaptive linear equalization for walsh covered modulation
    5.
    发明申请
    Method and apparatus for adaptive linear equalization for walsh covered modulation 有权
    用于沃尔什覆盖调制的自适应线性均衡的方法和装置

    公开(公告)号：US20030123525A1

    公开(公告)日：2003-07-03

    申请号：US10315707

    申请日：2002-12-09

    Applicant: QUALCOMM, Inc.

    Inventor： John E. Smee ,  Ahmad Jalali ,  Fuyun Ling ,  Mark Wallace

    IPC: H04B001/707

    CPC classification number: H04B1/7097 ,  H04L25/03038 ,  H04L2025/03375 ,  H04L2025/03477

    Abstract: A receive filter receives signals from a communication channel. The received signals correspond to original Walsh covered chip sequences transmitted by a transmit filter through the communication channel to the receive filter. The received signals are processed by an equalizer to generate a soft estimate of chip sequences corresponding to the original Walsh covered chip sequences. An N chip Walsh decover is then utilized to generate a soft estimate of code symbols corresponding to the soft estimate of the chip sequences. A number of symbol slicers are then used in parallel to produce a hard estimate of the code symbols corresponding to the soft estimate of code symbols generated by the N chip Walsh decover. Thereafter an N chip Walsh cover is used as part of a scheme to generate a hard estimate of chip sequences corresponding to the hard estimate of the code symbols generated by the symbol slicers. The hard estimate of the chip sequences generated with the aid of the N chip Walsh cover, and the soft estimate of the chip sequences generated by the equalizer, are used to generate a tracking mode error signal to adapt the response of the equalizer to the received signals.

    Abstract translation: 接收滤波器从通信信道接收信号。 接收到的信号对应于由发射滤波器通过通信信道发射到接收滤波器的原始沃尔什覆盖码片序列。 所接收的信号由均衡器处理以产生对应于原始沃尔什覆盖码片序列的码片序列的软估计。 然后利用N个芯片沃尔什解密来产生对应于芯片序列的软估计的码符号的软估计。 然后，并行地使用多个符号限幅器，以产生对应于由N个芯片沃尔什覆盖生成的码符号的软估计对应的码符号的硬估计。 此后，N芯片沃尔什覆盖被用作方案的一部分，以产生对应于由符号限幅器生成的码符号的硬估计的码片序列的硬估计。 借助于N芯片沃尔什覆盖生成的芯片序列的硬估计和由均衡器产生的芯片序列的软估计被用于产生跟踪模式误差信号，以使均衡器的响应适应于接收到的 信号。

    Method and apparatus for carrying packetized voice and data in wirless communication networks
    7.
    发明申请
    Method and apparatus for carrying packetized voice and data in wirless communication networks 有权
    用于在无线通信网络中传送分组语音和数据的方法和装置

    公开(公告)号：US20030086378A1

    公开(公告)日：2003-05-08

    申请号：US10327355

    申请日：2002-12-20

    Applicant: QUALCOMM, Inc.

    Inventor： Tao Chen ,  Nikolai K.N. Leung ,  Raymond Tah-Sheng Hsu

    IPC: G01R031/08

    CPC classification number: H04W28/06 ,  H04L1/18

    Abstract: A method and apparatus for reducing transmission delay in a wireless communication system that carries packetized voice and data information. Interruptions in the traffic channels cause loss of synchronization between a header compressor and a header decompressor. Rather than transmitting resynchronization information on the traffic channel, the information dropped by an interruption is re-transmitted on a non-traffic channel in parallel with the traffic channel. At the remote station, information from the traffic channel and the non-traffic channel is reassembled before input into the decompressor. Alternatively, the non-traffic channel can be used to carry overflow information so that a higher average data rate can be achieved than the average data rate of the traffic channel alone.

    Abstract translation: 一种在携带分组语音和数据信息的无线通信系统中减少传输延迟的方法和装置。 业务信道中的中断导致报头压缩器和报头解压缩器之间的同步丢失。 不是在业务信道上发送再同步信息，而是在与业务信道并行的非业务信道上重新发送由中断丢弃的信息。 在远程站处，在输入到解压缩器之前重新组合来自业务信道和非业务信道的信息。 或者，非业务信道可以用于承载溢出信息，使得可以实现比单独的业务信道的平均数据速率更高的平均数据速率。

    Wireless push-to-talk internet broadcast
    8.
    发明申请
    Wireless push-to-talk internet broadcast 失效

    公开(公告)号：US20020039895A1

    公开(公告)日：2002-04-04

    申请号：US09991511

    申请日：2001-11-16

    Applicant: QUALCOMM, Inc.

    Inventor： David J. Ross ,  Arnold J. Gum ,  Paul E. Jacobs

    IPC: H04M003/42

    CPC classification number: H04L65/4061 ,  H04L65/1016

    Abstract: A wireless telephone (302) digitizes the voice of the user in response to the depression of a push-to-talk button (110), either physical or virtual. It sends the digitized voice, in data mode, to a base station (308). The base station places the data, through the Internet, or an Intranet or Extranet, on a server (312). Other wireless phones (304)-(306) recover the data from the server through the same (308) or different (310) base station, through the Internet, Intranet, or Extranet, and convert the data back to digitized voice. The base stations transmit the digitized voice to other wireless telephones (306), which convert them back to voice in response to the recognition of voice frames on the data channel by the CODEC manager software. Networked computers (314) may be configured to emulate a combined base station and wireless telephone. The server can dynamically designate any wireless telephone (or landline emulation) as the broadcaster, and can dynamically configure any set of telephones/emulations as the receivers of the broadcast.

    Data boundary aware base station assisted position location
    9.
    发明申请
    Data boundary aware base station assisted position location 有权
    数据边界感知基站辅助位置定位

    公开(公告)号：US20020031192A1

    公开(公告)日：2002-03-14

    申请号：US09956325

    申请日：2001-09-18

    Applicant: Qualcomm, Inc.

    Inventor： Qiuzhen Zou ,  Gilbert C. Sih ,  Inyup Kang

    IPC: H04L027/14 ,  H04L027/22

    CPC classification number: G01S5/0036 ,  G01S19/235 ,  G01S19/254 ,  G01S19/258 ,  G01S19/30

    Abstract: The present invention is a novel and improved method and apparatus for performing position location in wireless communications system. One embodiment of the invention comprises a method for performing position location on a subscriber unit in a terrestrial wireless telephone system using a set of satellites each transmitting a signal, the terrestrial wireless telephone system having base stations, including the steps of transmitting an aiding message from the base station to the subscriber unit, said aiding message containing information regarding a data boundary for each signal from the set of satellites, applying correlation codes to each signal yielding corresponding correlation data and accumulating said correlation data over an first interval preceding a corresponding data boundary yielding a first accumulation result, and a second interval following said corresponding data boundary yielding a second accumulation result.

    Abstract translation: 本发明是一种用于在无线通信系统中执行位置定位的新颖且改进的方法和装置。 本发明的一个实施例包括一种用于在陆地无线电话系统中的用户单元上执行位置定位的方法，该方法使用一组发射信号的卫星，具有基站的地面无线电话系统包括以下步骤：从 基站到用户单元，所述辅助消息包含关于来自卫星组的每个信号的数据边界的信息，将相关代码应用于产生相应相关数据的每个信号，并在对应的数据边界之前的第一间隔上累加所述相关数据 产生第一累积结果，并且在所述对应数据边界之后的第二间隔产生第二累积结果。

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