公开(公告)号：US5715236A

公开(公告)日：1998-02-03

申请号：US156757

申请日：1993-11-24

申请人： Klein S. Gilhousen ,  Irwin M. Jacobs ,  Roberto Padovani ,  Lindsay A. Weaver, Jr. ,  Charles E. Wheatley, III ,  Andrew J. Viterbi

发明人： Klein S. Gilhousen ,  Irwin M. Jacobs ,  Roberto Padovani ,  Lindsay A. Weaver, Jr. ,  Charles E. Wheatley, III ,  Andrew J. Viterbi

IPC分类号： H04B1/707 ,  H04B1/7075 ,  H04B1/709 ,  H04B1/7115 ,  H04B7/005 ,  H04B7/26 ,  H04J3/02 ,  H04J3/16 ,  H04J3/22 ,  H04J11/00 ,  H04J13/00 ,  H04J13/10 ,  H04J13/18 ,  H04L20060101 ,  H04L1/00 ,  H04L1/06 ,  H04L1/08 ,  H04L5/02 ,  H04L5/12 ,  H04L23/02 ,  H04L27/30 ,  H04W52/26

CPC分类号： H04L1/0002 ,  H04B1/3888 ,  H04B1/707 ,  H04B1/70757 ,  H04B1/709 ,  H04B7/2618 ,  H04B7/2628 ,  H04B7/2637 ,  H04J13/0022 ,  H04J13/0048 ,  H04J13/10 ,  H04J13/107 ,  H04J13/18 ,  H04L1/0006 ,  H04L1/0065 ,  H04L1/0068 ,  H04L1/0071 ,  H04L1/06 ,  H04L23/02 ,  H04L5/02 ,  H04L5/12 ,  H04B1/7115 ,  H04B2201/70701 ,  H04B2201/70703 ,  H04L1/0046 ,  H04L1/08 ,  H04W52/26 ,  Y02B60/31

摘要： A system and method for communicating information signals using spread spectrum communication techniques. PN sequences are constructed that provide orthogonality between the users so that mutual interference will be reduced, allowing higher capacity and better link performance. With orthogonal PN codes, the cross-correlation is zero over a predetermined time interval, resulting in no interference between the orthogonal codes, provided only that the code time frames are time aligned with each other. In an exemplary embodiment, signals are communicated between a cell-site and mobile units using direct sequence spread spectrum communication signals. In the cell-to-mobile link, pilot, sync, paging and voice channels are defined. Information communicated on the cell-to-mobile link channels are, in general, encoded, interleaved, bi-phase shift key (BPSK) modulated with orthogonal covering of each BPSK symbol along with quadrature phase shift key (QPSK) spreading of the covered symbols. In the mobile-to-cell link, access and voice channels are defined. Information communicated on the mobile-to-cell link channels are, in general, encoded, interleaved, orthogonal signalling along with QPSK spreading.

摘要翻译： 一种使用扩频通信技术传送信息信号的系统和方法。 构造PN序列，以提供用户之间的正交性，从而减少相互干扰，从而允许更高的容量和更好的链路性能。 对于正交PN码，在相关的时间间隔内，互相关为0，导致正交码之间没有干扰，只要码时间帧彼此时间对准。 在示例性实施例中，使用直接序列扩频通信信号在小区站点和移动单元之间传送信号。 在小区到移动链路中，定义了导频，同步，寻呼和语音信道。 在小区到移动链路信道上传送的信息通常是用每个BPSK符号的正交覆盖调制的编码，交织，双相移键（BPSK）以及覆盖符号的正交相移键（QPSK）扩展 。 在移动小区链路中，定义了接入和语音信道。 一般来说，在移动小区链路信道上传送的信息一起编码，交织，正交信令以及QPSK扩频。

公开(公告)号：US5309474A

公开(公告)日：1994-05-03

申请号：US858781

申请日：1992-03-27

申请人： Klein S. Gilhousen ,  Irwin M. Jacobs ,  Roberto Padovani ,  Lindsay A. Weaver, Jr. ,  Charles E. Wheatley, III ,  Andrew J. Viterbi

发明人： Klein S. Gilhousen ,  Irwin M. Jacobs ,  Roberto Padovani ,  Lindsay A. Weaver, Jr. ,  Charles E. Wheatley, III ,  Andrew J. Viterbi

IPC分类号： H04B1/707 ,  H04B1/7075 ,  H04B1/709 ,  H04B1/7115 ,  H04B7/005 ,  H04B7/26 ,  H04J3/02 ,  H04J3/16 ,  H04J3/22 ,  H04J11/00 ,  H04J13/00 ,  H04J13/10 ,  H04J13/18 ,  H04L20060101 ,  H04L1/00 ,  H04L1/06 ,  H04L1/08 ,  H04L5/02 ,  H04L5/12 ,  H04L23/02 ,  H04L27/30 ,  H04W52/26

CPC分类号： H04L1/0002 ,  H04B1/3888 ,  H04B1/707 ,  H04B1/70757 ,  H04B1/709 ,  H04B7/2618 ,  H04B7/2628 ,  H04B7/2637 ,  H04J13/0022 ,  H04J13/0048 ,  H04J13/10 ,  H04J13/107 ,  H04J13/18 ,  H04L1/0006 ,  H04L1/0065 ,  H04L1/0068 ,  H04L1/0071 ,  H04L1/06 ,  H04L23/02 ,  H04L5/02 ,  H04L5/12 ,  H04B1/7115 ,  H04B2201/70701 ,  H04B2201/70703 ,  H04L1/0046 ,  H04L1/08 ,  H04W52/26 ,  Y02B60/31

摘要： A system and method for communicating information signals using spread spectrum communication techniques. PN sequences are constructed that provide orthogonality between the users so that mutual interference will be reduced, allowing higher capacity and better link performance. With orthogonal PN codes, the cross-correlation is zero over a predetermined time interval, resulting in no interference between the orthogonal codes, provided only that the code time frames are time aligned with each other. In an exemplary embodiment, signals are communicated between a cell-site and mobile units using direct sequence spread spectrum communication signals. In the cell-to-mobile link, pilot, sync, paging and voice channels are defined. Information communicated on the cell-to-mobile link channels are, in general, encoded, interleaved, bi-phase shift key (BPSK) modulated with orthogonal covering of each BPSK symbol along with quadrature phase shift key (QPSK) spreading of the covered symbols. In the mobile-to-cell link, access and voice channels are defined. Information communicated on the mobile-to-cell link channels are, in general, encoded, interleaved, orthogonal signalling along with QPSK spreading.

摘要翻译： 一种使用扩频通信技术传送信息信号的系统和方法。 构造PN序列，以提供用户之间的正交性，从而减少相互干扰，从而允许更高的容量和更好的链路性能。 对于正交PN码，在相关的时间间隔内，互相关为0，导致正交码之间没有干扰，只要码时间帧彼此时间对准。 在示例性实施例中，使用直接序列扩频通信信号在小区站点和移动单元之间传送信号。 在小区到移动链路中，定义了导频，同步，寻呼和语音信道。 在小区到移动链路信道上传送的信息通常是用每个BPSK符号的正交覆盖调制的编码，交织，双相移键（BPSK）以及覆盖符号的正交相移键（QPSK）扩展 。 在移动小区链路中，定义了接入和语音信道。 一般来说，在移动小区链路信道上传送的信息一起编码，交织，正交信令以及QPSK扩频。

公开(公告)号：US5265119A

公开(公告)日：1993-11-23

申请号：US702029

申请日：1991-05-17

申请人： Klein S. Gilhousen ,  Roberto Padovani ,  Charles E. Wheatley, III ,  Lindsay A. Weaver, Jr. ,  Robert D. Blakeney, II

发明人： Klein S. Gilhousen ,  Roberto Padovani ,  Charles E. Wheatley, III ,  Lindsay A. Weaver, Jr. ,  Robert D. Blakeney, II

IPC分类号： H04J13/00 ,  H04B7/005 ,  H04B7/26 ,  H04L27/30 ,  H04W52/00 ,  H04W52/02 ,  H04W52/06 ,  H04W52/08 ,  H04W52/10 ,  H04W52/12 ,  H04W52/34 ,  H04W52/36 ,  H04W52/40 ,  H04W52/52 ,  H04B7/204

CPC分类号： H04W52/40 ,  H04B7/0671 ,  H04B7/2628 ,  H04W52/0245 ,  H04W52/06 ,  H04W52/08 ,  H04W52/10 ,  Y02B60/50

摘要： A power control system for a cellular mobile telephone system in which system users communicate information signals between one another via at least one cell site using code division multiple access spread spectrum communication signals. The power control system controls transmission signal power for each cellular mobile telephone in the cellular mobile telephone system wherein each cellular mobile telephone has an antenna, transmitter and receiver and each cell-site also has an antenna, transmitter and receiver. Cell-site transmitted signal power is measured as received at the mobile unit. Transmitter power is adjusted at the mobile unit in an opposite manner with respect to increases and decreases in received signal power. A power control feedback scheme may also be utilized. At the cell-site communicating with the mobile unit, the mobile unit transmitted power is measured as received at the cell-site. A command signal is generated at the cell-site and transmitted to the mobile unit for further adjusting mobile unit transmitter power corresponding to deviations in the cell site received signal power. The feedback scheme is used to further adjust the mobile unit transmitter power so that mobile unit transmitted signals arrive at the cell-site at a desired power level. In a cell diversity situation, the mobile units transmitter power is adjusted to prevent unnecessary increases in mobile unit transmitter power level.

摘要翻译： 一种用于蜂窝移动电话系统的功率控制系统，其中系统用户通过使用码分多址扩频通信信号的至少一个小区站点在彼此之间传送信息信号。 功率控制系统控制蜂窝移动电话系统中的每个蜂窝移动电话的传输信号功率，其中每个蜂窝移动电话具有天线，发射机和接收机，并且每个小区站点也具有天线，发射机和接收机。 在移动单元处测量接收到的站点发送信号功率。 相对于接收信号功率的增加和减少，发射机功率在移动单元处以相反的方式被调整。 还可以使用功率控制反馈方案。 在与移动单元通信的小区站点处，移动单元发送的功率在小区站点被接收到。 在小区站点生成指令信号，发送给移动单元，进一步调整与单元现场接收信号功率的偏差对应的移动单元发射机功率。 反馈方案用于进一步调整移动单元发射机功率，使得移动单元发送的信号以期望的功率电平到达小区站点。 在小区分集情况下，调整移动单元发射机功率以防止移动单元发射机功率电平的不必要的增加。

公开(公告)号：US5257283A

公开(公告)日：1993-10-26

申请号：US749249

申请日：1991-08-23

申请人： Klein S. Gilhousen ,  Roberto Padovani ,  Charles E. Wheatley, III

发明人： Klein S. Gilhousen ,  Roberto Padovani ,  Charles E. Wheatley, III

IPC分类号： H04B7/005 ,  H04W52/00 ,  H04W52/02 ,  H04W52/06 ,  H04W52/08 ,  H04W52/10 ,  H04W52/12 ,  H04W52/40 ,  H04W52/52 ,  H04L27/30 ,  H04B7/204 ,  H04J13/00

CPC分类号： H04W52/52 ,  H04W52/06 ,  H04W52/08 ,  H04W52/10 ,  H04W52/12 ,  H04W52/40

摘要： A power control system for a cellular mobile telephone system in which system users communicate information signals between one another via at least one cell site using code division multiple access spread spectrum communication signals. The power control system controls transmission signal power for each cellular mobile telephone in the cellular mobile telephone system wherein each cellular mobile telephone has an antenna, transmitter and receiver and each cell-site also has an antenna, transmitter and receiver. Cell-site transmitted signal power is measured as received at the mobile unit. Transmitter power is adjusted at the mobile unit in an opposite manner with respect to increases and decreases in received signal power. A power control feedback scheme may also be utilized. At the cell-site communicating with the mobile unit, the mobile unit transmitted power is measured as received at the cell-site. A command signal is generated at the cell-site and transmitted to the mobile unit for further adjusting mobile unit transmitter power corresponding to deviations in the cell site received signal power. The feedback scheme is used to further adjust the mobile unit transmitter power so as to arrive at the cell-site at a desired power level.

摘要翻译： 一种用于蜂窝移动电话系统的功率控制系统，其中系统用户通过使用码分多址扩频通信信号的至少一个小区站点在彼此之间传送信息信号。 功率控制系统控制蜂窝移动电话系统中的每个蜂窝移动电话的传输信号功率，其中每个蜂窝移动电话具有天线，发射机和接收机，并且每个小区站点也具有天线，发射机和接收机。 在移动单元处测量接收到的站点发送信号功率。 相对于接收信号功率的增加和减少，发射机功率在移动单元处以相反的方式被调整。 还可以使用功率控制反馈方案。 在与移动单元通信的小区站点处，移动单元发送的功率在小区站点被接收到。 在小区站点生成指令信号，发送给移动单元，进一步调整与单元现场接收信号功率的偏差对应的移动单元发射机功率。 反馈方案用于进一步调整移动单元发射机功率，以便以期望的功率电平到达小区站点。

公开(公告)号：US07003021B2

公开(公告)日：2006-02-21

申请号：US10772490

申请日：2004-02-05

申请人： Klein S. Gilhousen ,  Irwin M. Jacobs ,  Roberto Padovani ,  Lindsay A. Weaver, Jr. ,  Charles E. Wheatley, III ,  Andrew J. Viterbi

发明人： Klein S. Gilhousen ,  Irwin M. Jacobs ,  Roberto Padovani ,  Lindsay A. Weaver, Jr. ,  Charles E. Wheatley, III ,  Andrew J. Viterbi

IPC分类号： H04B1/69

CPC分类号： H04L1/0002 ,  H04B1/707 ,  H04B1/70757 ,  H04B1/7115 ,  H04B7/2618 ,  H04B7/2628 ,  H04B7/2637 ,  H04B2201/70701 ,  H04B2201/70703 ,  H04J3/02 ,  H04J3/1688 ,  H04J3/22 ,  H04J13/0022 ,  H04J13/0048 ,  H04J13/12 ,  H04L1/0071 ,  H04L1/0072 ,  H04L1/06 ,  H04L1/08 ,  H04L5/02 ,  H04L5/12 ,  H04L23/02 ,  H04W52/08 ,  H04W52/10 ,  H04W52/26

摘要： A system and method for communicating information signals using spread spectrum communication techniques. PN sequences are constructed that provide orthogonality between the users so that mutual interference will be reduced, allowing higher capacity and better link performance. With orthogonal PN codes, the cross-correlation is zero over a predetermined time interval, resulting in no interference between the orthogonal codes, provided only that the code time frames are time aligned with each other. In an exemplary embodiment, signals are communicated between a cell-site and mobile units using direct sequence spread spectrum communication signals. In the cell-to-mobile link, pilot, sync, paging and voice channels are defined. Information communicated on the cell-to-mobile link channels are, in general, encoded, interleaved, bi-phase shift key (BPSK) modulated with orthogonal covering of each BPSK symbol along with quadrature phase shift key (QPSK) spreading of the covered symbols. In the mobile-to-cell link, access and voice channels are defined. Information communicated on the mobile-to-cell link channels are, in general, encoded, interleaved, orthogonal signaling along with QPSK spreading.

公开(公告)号：US06693951B1

公开(公告)日：2004-02-17

申请号：US09360059

申请日：1999-07-23

申请人： Klein S. Gilhousen ,  Irwin M. Jacobs ,  Roberto Padovani ,  Lindsay A. Weaver, Jr. ,  Charles E. Wheatley, III ,  Andrew J. Viterbi

发明人： Klein S. Gilhousen ,  Irwin M. Jacobs ,  Roberto Padovani ,  Lindsay A. Weaver, Jr. ,  Charles E. Wheatley, III ,  Andrew J. Viterbi

IPC分类号： H04B169

CPC分类号： H04L1/0002 ,  H04B1/707 ,  H04B1/70757 ,  H04B1/7115 ,  H04B7/2618 ,  H04B7/2628 ,  H04B7/2637 ,  H04B2201/70701 ,  H04B2201/70703 ,  H04J3/02 ,  H04J3/1688 ,  H04J3/22 ,  H04J13/0022 ,  H04J13/0048 ,  H04J13/12 ,  H04L1/0071 ,  H04L1/0072 ,  H04L1/06 ,  H04L1/08 ,  H04L5/02 ,  H04L5/12 ,  H04L23/02 ,  H04W52/08 ,  H04W52/10 ,  H04W52/26

摘要： A system and method for communicating information signals using spread spectrum communication techniques. PN sequences are constructed that provide orthogonality between the users so that mutual interference will be reduced, allowing higher capacity and better link performance. With orthogonal PN codes, the cross-correlation is zero over a predetermined time interval, resulting in no interference between the orthogonal codes, provided only that the code time frames are time aligned; with each other. In an exemplary embodiment, signals are communicated between a cell-site and mobile units using direct sequence spread spectrum communication signals. In the cell-to-mobile link, pilot, sync, paging and voice channels are defined. Information communicated on the cell-to-mobile link channels are, in general, encoded, interleaved, bi-phase shift key (BPSK) modulated with orthogonal covering of each BPSK symbol along with quadrature phase shift key (QPSK) spreading of the covered symbols. In the mobile-to-cell link, access and voice channels are defined. Information communicated on the mobile-to-cell link channels are, in general, encoded, interleaved, orthogonal signaling along with QPSK spreading.

摘要翻译： 一种使用扩频通信技术传送信息信号的系统和方法。 构造PN序列，以提供用户之间的正交性，从而减少相互干扰，从而允许更高的容量和更好的链路性能。 使用正交PN码，在相关的时间间隔内，互相关为0，导致正交码之间没有干扰，只要码时间帧是时间对齐的; 与彼此。 在示例性实施例中，使用直接序列扩频通信信号在小区站点和移动单元之间传送信号。 在小区到移动链路中，定义了导频，同步，寻呼和语音信道。 在小区到移动链路信道上传送的信息通常是用每个BPSK符号的正交覆盖调制的编码，交织，双相移键（BPSK）以及覆盖符号的正交相移键（QPSK）扩展 。 在移动小区链路中，定义了接入和语音信道。 一般来说，在移动小区链路信道上传送的信息一起编码，交织，正交信令以及QPSK扩频。

公开(公告)号：US5841806A

公开(公告)日：1998-11-24

申请号：US441894

申请日：1995-05-16

申请人： Klein S. Gilhousen ,  Irwin M. Jacobs ,  Roberto Padovani ,  Lindsay A. Weaver, Jr. ,  Charles E. Wheatley, III ,  Andrew J. Viterbi

发明人： Klein S. Gilhousen ,  Irwin M. Jacobs ,  Roberto Padovani ,  Lindsay A. Weaver, Jr. ,  Charles E. Wheatley, III ,  Andrew J. Viterbi

IPC分类号： H04B1/707 ,  H04B1/7075 ,  H04B1/709 ,  H04B1/7115 ,  H04B7/005 ,  H04B7/26 ,  H04J3/02 ,  H04J3/16 ,  H04J3/22 ,  H04J11/00 ,  H04J13/00 ,  H04J13/10 ,  H04J13/18 ,  H04L20060101 ,  H04L1/00 ,  H04L1/06 ,  H04L1/08 ,  H04L5/02 ,  H04L5/12 ,  H04L23/02 ,  H04L27/30 ,  H04W52/26

CPC分类号： H04L1/0002 ,  H04B1/3888 ,  H04B1/707 ,  H04B1/70757 ,  H04B1/709 ,  H04B7/2618 ,  H04B7/2628 ,  H04B7/2637 ,  H04J13/0022 ,  H04J13/0048 ,  H04J13/10 ,  H04J13/107 ,  H04J13/18 ,  H04L1/0006 ,  H04L1/0065 ,  H04L1/0068 ,  H04L1/0071 ,  H04L1/06 ,  H04L23/02 ,  H04L5/02 ,  H04L5/12 ,  H04B1/7115 ,  H04B2201/70701 ,  H04B2201/70703 ,  H04L1/0046 ,  H04L1/08 ,  H04W52/26 ,  Y02B60/31

摘要： An apparatus for communicating variable rate data over a communication channel. A modulator that receive frames of user data each comprised of data symbols. The modulator repeats the data symbols within each frame to maintain a constant data rate. A transmitter receiver the modulator data and scales the modulated symbol data based upon the amount of symbol repetition in the frame.

摘要翻译： 一种用于在通信信道上传送可变速率数据的装置。 接收由数据符号构成的用户数据帧的调制器。 调制器重复每帧内的数据符号以保持恒定的数据速率。 发射机接收机，基于帧中符号重复的量，调制器数据并调整调制符号数据。

公开(公告)号：US5101501A

公开(公告)日：1992-03-31

申请号：US433030

申请日：1989-11-07

申请人： Klein S. Gilhousen ,  Roberto Padovani ,  Charles E. Wheatley, III

发明人： Klein S. Gilhousen ,  Roberto Padovani ,  Charles E. Wheatley, III

IPC分类号： H04B1/707 ,  H04W36/18

CPC分类号： H04W36/18 ,  H04B2201/70701

摘要： In a cellular telephone system a system for directing communications between a mobile user and cell-sites as a mobile user changes cell-site service areas. The mobile user includes an apparatus for, while in communication with another system user via one cell-site, determining a transition of the mobile user from the cell-site service area to the service area of another cell-site. The system includes circuitry responsive to the indication for coupling communications between the mobile user and the other system user via the new cell-site while the mobile user also remains in communication with the system user via the first cell-site. The system further includes apparatus responsive to the coupling of the communications between the mobile user and the other system user via the new cell-site for terminating the communications between the mobile user and another system user via cell-site with communications continuing between the mobile user and the system user via the new cell-site.

摘要翻译： 在蜂窝电话系统中，作为移动用户指导移动用户与小区站点之间的通信的系统改变小区站点服务区域。 移动用户包括用于在经由一个小区站点与另一系统用户通信时确定移动用户从小区站点服务区域到另一小区站点的服务区域的转换的装置。 该系统包括响应于该指示的电路，用于通过新的小区站点来耦合移动用户与另一个系统用户之间的通信，同时移动用户也通过第一小区站点与系统用户保持通信。 该系统还包括响应于移动用户和另一个系统用户之间的通信的耦合，经由新的小区站点，用于经由小区站点终止移动用户与另一个系统用户之间的通信，该通信在移动用户之间继续进行 和系统用户通过新的小区站点。

公开(公告)号：US5056109A

公开(公告)日：1991-10-08

申请号：US433031

申请日：1989-11-07

申请人： Klein S. Gilhousen ,  Roberto Padovani ,  Charles E. Wheatley, III

发明人： Klein S. Gilhousen ,  Roberto Padovani ,  Charles E. Wheatley, III

IPC分类号： H04B7/005 ,  H04B7/26 ,  H04W52/00 ,  H04W52/02 ,  H04W52/06 ,  H04W52/08 ,  H04W52/10 ,  H04W52/12 ,  H04W52/40 ,  H04W52/52

CPC分类号： H04W52/0245 ,  H04W52/06 ,  H04W52/52 ,  H04W52/08 ,  H04W52/10 ,  H04W52/12 ,  H04W52/40 ,  Y02B60/50

摘要： A power control system for a cellular mobile telephone system in which system users communicate information signals between one another via at least one cell site using code division multiple access spread spectrum communication signals. The power control system controls transmission signal power for each cellular mobile telephone in the cellular mobile telephone system wherein each cellular mobile telephone has an antenna, transmitter and receiver and each cell-site also has an antenna, transmitter and receiver. Cell-site transmitted signal power is measured as received at the mobile unit. Transmitter power is adjusted at the mobile unit in an opposite manner with respect to increases and decreases in received signal power. A power control feedback scheme may also be utilized. At the cell-site communicating with the mobile unit, the mobile unit transmitted power is measured as received at the cell-site. A command signal is generated at the cell-site and transmitted to the mobile unit for further adjusting mobile unit transmitter power corresponding to deviations in the cell site received signal power. The feedback scheme is used to further adjust the mobile unit transmitter power so as to arrive at the cell-site at a desired power level.

摘要翻译： 一种用于蜂窝移动电话系统的功率控制系统，其中系统用户通过使用码分多址扩频通信信号的至少一个小区站点在彼此之间传送信息信号。 功率控制系统控制蜂窝移动电话系统中的每个蜂窝移动电话的传输信号功率，其中每个蜂窝移动电话具有天线，发射机和接收机，并且每个小区站点也具有天线，发射机和接收机。 在移动单元处测量接收到的站点发送信号功率。 相对于接收信号功率的增加和减少，发射机功率在移动单元处以相反的方式被调整。 还可以使用功率控制反馈方案。 在与移动单元通信的小区站点处，移动单元发送的功率在小区站点被接收到。 在小区站点生成指令信号，发送给移动单元，进一步调整与单元现场接收信号功率的偏差对应的移动单元发射机功率。 反馈方案用于进一步调整移动单元发射机功率，以便以期望的功率电平到达小区站点。

公开(公告)号：US07839960B2

公开(公告)日：2010-11-23

申请号：US11297264

申请日：2005-12-07

申请人： Klein S. Gilhousen ,  Irwin M. Jacobs ,  Roberto Padovani ,  Lindsay A. Weaver, Jr. ,  Charles E. Wheatley, III ,  Andrew J. Viterbi

发明人： Klein S. Gilhousen ,  Irwin M. Jacobs ,  Roberto Padovani ,  Lindsay A. Weaver, Jr. ,  Charles E. Wheatley, III ,  Andrew J. Viterbi

IPC分类号： H04L7/00 ,  H04B1/69

CPC分类号： H04L1/0002 ,  H04B1/707 ,  H04B1/70757 ,  H04B1/7115 ,  H04B7/2618 ,  H04B7/2628 ,  H04B7/2637 ,  H04B2201/70701 ,  H04B2201/70703 ,  H04J3/02 ,  H04J3/1688 ,  H04J3/22 ,  H04J13/0022 ,  H04J13/0048 ,  H04J13/12 ,  H04L1/0071 ,  H04L1/0072 ,  H04L1/06 ,  H04L1/08 ,  H04L5/02 ,  H04L5/12 ,  H04L23/02 ,  H04W52/08 ,  H04W52/10 ,  H04W52/26

摘要： A system and method for communicating information signals using spread spectrum communication techniques. PN sequences are constructed that provide orthogonality between the users so that mutual interference will be reduced, allowing higher capacity and better link performance. With orthogonal PN codes, the cross-correlation is zero over a predetermined time interval, resulting in no interference between the orthogonal codes, provided only that the code time frames are time aligned with each other. In an exemplary embodiment, signals are communicated between a cell-site and mobile units using direct sequence spread spectrum communication signals. In the exemplary embodiment, transmit power of mobile unit signals is controlled based on signal power received by the mobile unit and power adjustment commands sent to the mobile unit.

摘要翻译： 一种使用扩频通信技术传送信息信号的系统和方法。 构造PN序列，以提供用户之间的正交性，从而减少相互干扰，从而允许更高的容量和更好的链路性能。 对于正交PN码，在相关的时间间隔内，互相关为0，导致正交码之间没有干扰，只要码时间帧彼此时间对准。 在示例性实施例中，使用直接序列扩频通信信号在小区站点和移动单元之间传送信号。 在示例性实施例中，基于由移动单元接收的信号功率和发送到移动单元的功率调整命令来控制移动单元信号的发射功率。