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11.发明授权Method and apparatus for performing handoff between sectors of a common base station 失效用于在公共基站的扇区之间执行切换的方法和装置
公开(公告)号：US5625876A
公开(公告)日：1997-04-29
申请号：US405611
申请日：1995-03-13
IPC分类号： H04B7/005 , H04B7/04 , H04B7/216 , H04B7/26 , H04W16/24 , H04W36/06 , H04W36/18 , H04W52/00 , H04W52/14 , H04W52/40 , H04Q7/30
CPC分类号： H04W36/06 , H04B7/0491 , H04W52/146 , H04W52/40 , H04W16/24 , H04W36/18 , Y02B60/50
摘要： A method and apparatus providing softer handoff of a mobile unit between sectors of a common base station. A sectorized base station comprises a set of demodulation elements. Each demodulation element may be assigned to a signal from one of a plurality of sectors. The output of the demodulators are combined before the decoding process independent of the sector from which the data originated. This configuration provides improved output data reliability, more stable power control, and more efficient use of resources at the base station.
摘要翻译： 在公共基站的扇区之间提供移动单元的更软切换的方法和装置。 扇区化基站包括一组解调元件。 每个解调元件可以被分配给来自多个扇区之一的信号。 解调器的输出在解码过程之前被组合，独立于数据来源的扇区。 该配置提供了改进的输出数据可靠性，更稳定的功率控制以及在基站上更有效地利用资源。
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12.发明授权Method and apparatus for controlling transmission power in a CDMA cellular mobile telephone system 失效用于控制CDMA蜂窝移动电话系统中的发射功率的方法和装置
公开(公告)号：US5485486A
公开(公告)日：1996-01-16
申请号：US217003
申请日：1994-03-23
IPC分类号： H04B7/005 , H04B7/26 , H04W52/00 , H04W52/02 , H04W52/06 , H04W52/08 , H04W52/10 , H04W52/12 , H04W52/34 , H04W52/36 , H04W52/40 , H04W52/52 , H04J13/02 , H04B1/69 , H04B1/707 , H04J13/04
CPC分类号： H04W52/343 , H04B7/2628 , H04W52/06 , H04W52/346 , H04W52/362 , H04W52/367 , H04W52/52 , 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 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。
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13.发明授权System and method for generating signal waveforms in a CDMA cellular telephone system 失效用于在CDMA蜂窝电话系统中产生信号波形的系统和方法
公开(公告)号：US5416797A
公开(公告)日：1995-05-16
申请号：US825147
申请日：1992-01-24
申请人： Klein S. Gilhousen , Irwin M. Jacobs , Roberto Padovani , Lindsay A. Weaver, Jr. , Andrew J. Viterbi
发明人： Klein S. Gilhousen , Irwin M. Jacobs , Roberto Padovani , Lindsay A. Weaver, Jr. , 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, hi-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一般是利用每个BPSK符号的正交覆盖调制的编码，交织，相位相移键（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。
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公开(公告)号：US5848063A
公开(公告)日：1998-12-08
申请号：US652742
申请日：1996-05-23
申请人： Lindsay A. Weaver, Jr. , David B. Munsinger , Roberto Padovani , Noam A. Ziv , Gadi Karmi , Klein S. Gilhousen
发明人： Lindsay A. Weaver, Jr. , David B. Munsinger , Roberto Padovani , Noam A. Ziv , Gadi Karmi , Klein S. Gilhousen
CPC分类号： H04W36/30 , H04W36/0083
摘要： In a communications network, a network user communicates through a remote unit with another user via at least one base station. The communications network includes a first mobile switching center which controls communications through a first set of base stations including a first base station. The remote unit stores a list of active base stations which has an entry corresponding to each base station with which active communication is established. The first base station has an entry on the list of active base stations. The first base station measures a round trip delay of an active communication signal between the first base station and the remote unit. A handoff of the active communication signal is initiated if the round trip delay of the active communication exceeds a threshold if the first base station is designated as a reference base station. Alternatively, the remote unit also stores a list of candidate base stations comprising an entry corresponding to each base station through which active communication may be possible but is not established. A handoff of the active communication signal is initiated if the list of candidate base stations comprises an entry corresponding to a triggering pilot signal.
摘要翻译： 在通信网络中，网络用户经由至少一个基站通过远程单元与另一用户进行通信。 通信网络包括第一移动交换中心，其通过包括第一基站的第一组基站来控制通信。 远程单元存储活动基站的列表，其具有对应于建立了主动通信的每个基站的条目。 第一个基站在活动基站列表中有一个条目。 第一基站测量第一基站和远程单元之间的活动通信信号的往返延迟。 如果第一基站被指定为参考基站，则主动通信的往返延迟超过阈值时，启动主动通信信号的越区切换。 或者，远程单元还存储候选基站的列表，其包括对应于每个基站的条目，活动通信可以通过该条目可能但不被建立。 如果候选基站的列表包括与触发导频信号相对应的条目，则启动主动通信信号的越区切换。
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公开(公告)号：US5257283A
公开(公告)日：1993-10-26
申请号：US749249
申请日：1991-08-23
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
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。
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16.发明授权Method and apparatus for performing handoff between sectors of a common base station 失效用于在公共基站的扇区之间执行切换的方法和装置
公开(公告)号：US5933787A
公开(公告)日：1999-08-03
申请号：US763498
申请日：1996-12-11
CPC分类号： H04W52/40 , H04B7/0491 , H04W16/24 , H04W36/18 , Y02B60/50
摘要： A method and apparatus providing softer handoff of a mobile unit between sectors of a common base station. A sectorized base station comprises a set of demodulation elements. Each demodulation element may be assigned to a signal from one of a plurality of sectors. The output of the demodulators are combined before the decoding process independent of the sector from which the data originated. This configuration provides improved output data reliability, more stable power control, and more efficient use of resources at the base station.
摘要翻译： 在公共基站的扇区之间提供移动单元的更软切换的方法和装置。 扇区化基站包括一组解调元件。 每个解调元件可以被分配给来自多个扇区之一的信号。 解调器的输出在解码过程之前被组合，独立于数据来源的扇区。 该配置提供了改进的输出数据可靠性，更稳定的功率控制以及在基站上更有效地利用资源。
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17.发明授权Method and system for providing a soft handoff in communications in a CDMA cellular telephone system 失效用于在CDMA蜂窝电话系统中提供通信中的软切换的方法和系统
公开(公告)号：US5101501A
公开(公告)日：1992-03-31
申请号：US433030
申请日：1989-11-07
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。
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18.发明授权Method and apparatus for controlling transmission power in a CDMA cellular mobile telephone system 失效用于控制CDMA蜂窝移动电话系统中的传输功率的方法和装置
公开(公告)号：US5056109A
公开(公告)日：1991-10-08
申请号：US433031
申请日：1989-11-07
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。
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19.发明授权System and method for reducing interference generated by a CDMA communications device 有权用于减少由CDMA通信设备产生的干扰的系统和方法公开(公告)号：US06714597B1
公开(公告)日：2004-03-30
申请号：US09654179
申请日：2000-09-01
IPC分类号： H04L2549
CPC分类号： H04B15/00
摘要： A system and method for reducing the interference experienced by sensitive electronic devices, such as hearing aids, operative in the vicinity of CDMA user communication devices. A transmitter of the communications device is configured to transmit signal power substantially continuously at a full rate power level irrespective of the variable data rate at which the transmitter would otherwise be operative. In a first embodiment, a variable rate vocoder within the transmitter is directed to perform full-rate vocoding, irrespective of an instantaneous level of user speech. In a second embodiment, a microprocessor builds full-rate frames using repeated versions of code symbols generated by the vocoder. In a third embodiment, the microprocessor builds full rate frames by generating signaling bits of a predetermined pattern to pad otherwise non-full frames.
摘要翻译： 一种用于减少在CDMA用户通信设备附近操作的敏感电子设备（例如助听器）所经历的干扰的系统和方法。 通信设备的发射机被配置为以全速率功率电平基本上连续地发射信号功率，而与发射机否则可操作的可变数据速率无关。 在第一实施例中，发射机内的可变速率声码器被引导以执行全速率声码，而与用户语音的瞬时级别无关。 在第二实施例中，微处理器使用由声码器产生的代码符号的重复版本构建全速率帧。 在第三实施例中，微处理器通过产生预定模式的信令比特来构建全速率帧，以填补非全帧。
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20.发明授权System and method for reducing interference generated by a CDMA communications device 失效用于减少由CDMA通信设备产生的干扰的系统和方法公开(公告)号：US06205190B1
公开(公告)日：2001-03-20
申请号：US08639572
申请日：1996-04-29
IPC分类号： H03D104
CPC分类号： H04B15/00
摘要： A system and method for reducing the interference experienced by sensitive electronic devices, such as hearing aids, operative in the vicinity of CDMA user communication devices. A transmitter of the communications device is configured to transmit signal power substantially continuously at a full rate power level irrespective of the variable data rate at which the transmitter would otherwise be operative. In a first embodiment, a variable rate vocoder within the transmitter is directed to perform full-rate vocoding, irrespective of an instantaneous level of user speech. In a second embodiment, a microprocessor builds full-rate frames using repeated versions of code symbols generated by the vocoder. In a third embodiment, the microprocessor builds full rate frames by generating signaling bits of a predetermined pattern to pad otherwise non-full frames.
摘要翻译： 一种用于减少在CDMA用户通信设备附近操作的敏感电子设备（例如助听器）所经历的干扰的系统和方法。 通信设备的发射机被配置为以全速率功率电平基本上连续地发射信号功率，而与发射机否则可操作的可变数据速率无关。 在第一实施例中，发射机内的可变速率声码器被引导以执行全速率声码，而与用户语音的瞬时级别无关。 在第二实施例中，微处理器使用由声码器产生的代码符号的重复版本构建全速率帧。 在第三实施例中，微处理器通过产生预定模式的信令比特来构建全速率帧，以填补非全帧。
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