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1. 发明授权

US06661833B1 PN generators for spread spectrum communications systems 有权
标题翻译：用于扩频通信系统的PN发生器
公开(公告)号：US06661833B1
公开(公告)日：2003-12-09
申请号：US09494838
申请日：2000-01-31
申请人： Peter J. Black , Roberto Padovani , Lindsay A. Weaver, Jr.
发明人： Peter J. Black , Roberto Padovani , Lindsay A. Weaver, Jr.
IPC分类号： H04B169
CPC分类号： H04J13/10 , H03K3/84 , H04B1/707 , H04J13/0022
摘要： Techniques to improve the acquisition process in a spread spectrum environment. The signals from different CDMA systems are spread with different sets of PN sequences, with the PN sequences in each set being uncorrelated to the PN sequences in the other sets. By using uncorrelated PN sequences, the likelihood of detecting a pilot signal from an undesired system is reduced or minimized, and the mean time to acquisition of the pilot signal from the desired system is improved. The mobile station can attempt to acquire the pilot signal by processing the received signal with a first set of PN sequences corresponding to a first hypothesis of the particular signal being acquired. If acquisition of the pilot signal fails, a second set of PN sequences corresponding to a second hypothesis is selected and used to process the received signal. The PN sequences in the second set are uncorrelated to the PN sequences in the first set. The PN sequences for the first set can be generated based on the characteristic polynomials defined by IS-95-A, and the PN sequences for the second set can be the reverse of the PN sequences for the first set.
摘要翻译：在扩展频谱环境中改进采集过程的技术。来自不同CDMA系统的信号用不同的PN序列集合扩展，每组中的PN序列与其他集合中的PN序列不相关。通过使用不相关的PN序列，可以减少或最小化检测来自不需要的系统的导频信号的可能性，并且提高从所需系统获取导频信号的平均时间。移动台可以尝试通过用对应于所获取的特定信号的第一假设的第一组PN序列处理接收信号来获取导频信号。如果导频信号的获取失败，则选择对应于第二假设的第二组PN序列来处理接收到的信号。第二组中的PN序列与第一组中的PN序列不相关。可以基于由IS-95-A定义的特征多项式来生成第一组的PN序列，并且第二组的PN序列可以是第一组的PN序列的相反。

2. 发明授权

US08611310B2 PN generators for spread spectrum communications systems 有权
标题翻译：用于扩频通信系统的PN发生器
公开(公告)号：US08611310B2
公开(公告)日：2013-12-17
申请号：US10659831
申请日：2003-09-10
申请人： Peter J. Black , Roberto Padovani , Lindsay A. Weaver, Jr.
发明人： Peter J. Black , Roberto Padovani , Lindsay A. Weaver, Jr.
IPC分类号： H04B7/216 , H04B1/69
CPC分类号： H04J13/10 , H03K3/84 , H04B1/707 , H04J13/0022
摘要： Techniques to improve the acquisition process in a spread spectrum environment. The signals from different CDMA systems are spread with different sets of PN sequences, with the PN sequences in each set being uncorrelated to the PN sequences in the other sets. The mobile station can attempt to acquire the pilot signal by processing the received signal with a first set of PN sequences corresponding to a first hypothesis of the particular signal being acquired. If acquisition of the pilot signal fails, a second set of PN sequences corresponding to a second hypothesis is selected and used to process the received signal. The PN sequences in the second set are uncorrelated to the PN sequences in the first set.
摘要翻译：在扩展频谱环境中改进采集过程的技术。来自不同CDMA系统的信号用不同的PN序列集合扩展，每组中的PN序列与其他集合中的PN序列不相关。移动台可以尝试通过用对应于所获取的特定信号的第一假设的第一组PN序列处理接收信号来获取导频信号。如果导频信号的获取失败，则选择对应于第二假设的第二组PN序列来处理接收到的信号。第二组中的PN序列与第一组中的PN序列不相关。

3. 发明授权

US07734260B2 Apparatus and method for reducing message collision between mobile stations simultaneously accessing a base station in a CDMA cellular communications system 失效
标题翻译：用于减少在CDMA蜂窝通信系统中同时访问基站的移动站之间的消息冲突的装置和方法
公开(公告)号：US07734260B2
公开(公告)日：2010-06-08
申请号：US11622383
申请日：2007-01-11
申请人： Edward G. Tiedemann, Jr. , Lindsay A. Weaver, Jr. , Roberto Padovani
发明人： Edward G. Tiedemann, Jr. , Lindsay A. Weaver, Jr. , Roberto Padovani
IPC分类号： H04B1/04
CPC分类号： H04W74/0841 , H04B1/707 , H04B1/7103 , H04B7/2628 , H04B2201/709709 , H04J13/0022 , H04J13/10 , H04J13/16 , H04L1/188 , H04L1/1887 , H04W52/48 , H04W52/50 , H04W74/002 , H04W74/08 , H04W74/0833 , H04W74/0866
摘要： Collisions between messages simultaneously transmitted by multiple spread-spectrum transmitters are reduced by distributing the transmissions over the available resources of the receiver. Each mobile station in a CDMA system uses one or more randomization methods to distribute its transmissions. In the first randomization, the mobile station time-delays its transmissions by a number of chips of the PN code with which it spreads the transmitted signal. In a second randomization, the mobile station randomly selects the PN code. In a third randomization, the mobile station inserts a random delay between successive message transmissions or probes if it does not receive an acknowledgement after a predetermined timeout period. A predetermined number of such transmissions is called a probe sequence. In a fourth randomization, the mobile station inserts a relatively long random delay between successive probe sequences if it does not receive an acknowledgement of any probe in the sequence.
摘要翻译：通过在接收机的可用资源上分发传输来减少由多个扩频发射机同时发送的消息之间的冲突。 CDMA系统中的每个移动站使用一种或多种随机化方法来分发其传输。在第一次随机化中，移动台通过PN码的多个码片对其发送进行时间延迟，并通过该芯片扩展发送的信号。在第二随机化中，移动台随机选择PN码。在第三次随机化中，如果移动台在预定的超时时段之后没有接收到确认，则在连续的消息传输或探测之间插入随机延迟。预定数量的这种传输被称为探测序列。在第四随机化中，如果移动台在序列中没有接收到任何探测器的确认，则在连续探测序列之间插入相对长的随机延迟。

4. 发明授权

US5715236A System and method for generating signal waveforms in a CDMA cellular telephone system 失效
标题翻译：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：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。

5. 发明授权

US5504773A Method and apparatus for the formatting of data for transmission 失效
标题翻译：用于传输数据格式化的方法和装置
公开(公告)号：US5504773A
公开(公告)日：1996-04-02
申请号：US171146
申请日：1993-12-21
申请人： Roberto Padovani , Edward G. Tiedemann, Jr. , Lindsay A. Weaver, Jr. , Brian K. Butler
发明人： Roberto Padovani , Edward G. Tiedemann, Jr. , Lindsay A. Weaver, Jr. , Brian K. Butler
IPC分类号： H04B1/707 , H04B1/7075 , H04B1/7115 , H04B7/005 , H04B7/26 , H04J3/16 , H04J3/22 , H04J3/24 , H04J11/00 , H04J13/00 , H04J13/18 , H04L1/00 , H04L1/08 , H04L5/02 , H04L5/12 , H04L7/04 , H04L23/02 , H04B1/69 , G06F11/00
CPC分类号： H04L1/0057 , H04B1/707 , H04B1/70757 , H04B7/2618 , H04B7/2628 , H04B7/2637 , H04J13/00 , H04J3/16 , H04J3/1688 , H04J3/22 , H04J3/24 , H04L1/0059 , H04L1/0065 , H04L1/0068 , H04L1/0071 , H04L1/08 , H04L23/02 , H04L5/02 , H04L5/12 , H04L7/048 , H04B1/7115 , H04B2201/70701 , H04B2201/70703 , H04J13/0048 , H04J13/18 , H04W52/26
摘要： In a digital communication system in which digital data is transmitted in data frames of a preselected time duration, a method and apparatus for formatting digital data in each data frame. A set of data bits of a first data type having a bit count corresponding to one of a plurality of predetermined bit counts are provided. A set of parity check bits for the set of data bits of said first data type are generated when the bit count is a highest bit count or a next to highest bit count. A set of tail bits is generated in accordance with a predetermined frame termination format. In respective order the set of data bits of the first data type, the parity check bits, and the tail bits are porovided in a data frame if the bit count is of the highest bit count or of the next to highest bit count. Otherwise, the set of data bits of the first data type and the tail bits are provided in respective order in the data frame.
摘要翻译：在数字数据在预选持续时间的数据帧中发送的数字通信系统中，在每个数据帧中格式化数字数据的方法和装置。提供具有对应于多个预定位计数之一的位计数的第一数据类型的一组数据位。当比特计数是最高比特数或下一个最高比特数时，产生用于所述第一数据类型的数据比特组的一组奇偶校验位。根据预定的帧终止格式生成一组尾比特。如果比特数是最高比特数或下一个到最高比特数，则在相应的顺序中，如果第一数据类型，奇偶校验位和尾比特的数据比特的数据比特被排列在数据帧中。否则，在数据帧中以相应的顺序提供第一数据类型和尾比特的数据比特组。

6. 发明授权

US5490165A Demodulation element assignment in a system capable of receiving multiple signals 失效
标题翻译：能够接收多个信号的系统中的解调元素分配
公开(公告)号：US5490165A
公开(公告)日：1996-02-06
申请号：US144902
申请日：1993-10-28
申请人： Robert D. Blakeney, II , Lindsay A. Weaver, Jr. , Noam A. Ziv , Paul T. Williamson , Roberto Padovani
发明人： Robert D. Blakeney, II , Lindsay A. Weaver, Jr. , Noam A. Ziv , Paul T. Williamson , Roberto Padovani
IPC分类号： H04B1/7087 , H04B1/7117 , H04B7/08 , H04B7/26 , H04B1/69
CPC分类号： H04B1/7117 , H04B1/7087
摘要： In a receiver having a plurality of demodulation elements, a method of assigning the plurality of demodulation element so a set of available signals. A first method emphasizes diversity of transmitting devices so that power control is optimal. A second method emphasizes the maximum signal strength available to produce aggregate maximum signal strength. Both methods control the number of reassignments so that excessive data is not lost during the reassignment process. The apparatus comprises the plurality of demodulation elements, at least one searcher element, and a controller.
摘要翻译：在具有多个解调元件的接收机中，分配多个解调元件的方法是一组可用信号。第一种方法强调发射设备的多样性，使得功率控制是最佳的。第二种方法强调可产生最大信号强度的最大信号强度。这两种方法都可以控制重新分配的次数，以便在重新分派过程中不会丢失过多的数据。该装置包括多个解调元件，至少一个搜索器元件和控制器。

7. 发明授权

US5485486A Method and apparatus for controlling transmission power in a CDMA cellular mobile telephone system 失效
标题翻译：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
申请人： Klein S. Gilhousen , Roberto Padovani , Lindsay A. Weaver, Jr.
发明人： Klein S. Gilhousen , Roberto Padovani , Lindsay A. Weaver, Jr.
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。

8. 发明授权

US5416797A System and method for generating signal waveforms in a CDMA cellular telephone system 失效
标题翻译：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。

9. 发明授权

US5309474A System and method for generating signal waveforms in a CDMA cellular telephone system 失效
标题翻译：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：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。

10. 发明授权

US5265119A Method and apparatus for controlling transmission power in a CDMA cellular mobile telephone system 失效
标题翻译：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：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。

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