公开(公告)号：WO1996024225A1

公开(公告)日：1996-08-08

申请号：PCT/US1996001457

申请日：1996-01-31

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  JACOBS, Paul, E. ,  FAUS, Juan ,  CHANG, Martin, N.

IPC: H04Q07/20

CPC classification number: H04W84/14

Abstract: A cellular telephone concentrated subscriber system (113) is described. The concentrated subscriber system includes a set of subscriber units (116) each having a unique electronic serial number that is coupled to a concentrated subscriber system controller that provides a radio frequency (RF) interface to the standard base station transceiver (110) of a cellular telephone system. The concentrated subscriber system controller includes a set of modulator-demodulator systems (modems) and a RF transceiver and antenna system (270, 250) that is configured to transmit sufficient information to conduct multiple telephone calls over both long and short distances. The concentrated subscriber system controller also includes control circuitry (254) for coupling the set of subscriber unit (116) to the set of modems via a multiplexed (266) system using stored information. In the preferred embodiment the number of modems is significantly less than the number of subscriber units which are implemented in a simplified manner so that the per user cost of cellular telephone service is reduced.

Abstract translation: 描述了一种蜂窝电话集中用户系统（113）。 集中用户系统包括一组用户单元（116），每个用户单元（116）具有独特的电子序列号，该电子序列号耦合到向蜂窝基站的标准基站收发信机（110）提供射频（RF）接口的集中用户系统控制器 电话系统 集中用户系统控制器包括一组调制器 - 解调器系统（调制解调器）和RF收发器和天线系统（270,250），其被配置为发送足够的信息以在长距离和短距离上进行多个电话呼叫。 集中用户系统控制器还包括控制电路（254），用于经由使用存储信息的多路复用（266）系统将该组用户单元（116）耦合到该组调制解调器。 在优选实施例中，调制解调器的数量显着小于以简化方式实现的用户单元的数量，使得蜂窝电话服务的每用户成本降低。

公开(公告)号：WO1996017487A1

公开(公告)日：1996-06-06

申请号：PCT/US1995015533

申请日：1995-11-28

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  GILMORE, Robert, P. ,  LARAMIE, Daniel

IPC: H04Q07/36

CPC classification number: H01Q3/24 ,  H04B1/74

Abstract: A system and method for using a sectored antenna arrangement within a cellular base station to provide redundant coverage within the surrounding cell is disclosed herein. An antenna feed network connects elements of the sectored antenna arrangement to a set of communication transceivers (79, 80, 81), wherein the feed network includes a combiner array (92, 94, 96) for combining selected ones of the antenna beams upon failure of one of the communication transceivers (79, 80, 81). A switch network (102, 104, 106) serves to provide the resultant combined beam to an operative one of the communication transceivers. Alternately, the sectored antenna arrangement includes an antenna array having a plurality of switchable antenna elements A1-A3, each connected to one of the communication transceivers. The switchable antenna elements A1-A3 project a set of variable-width antenna beams over the plurality of cell sectors. Upon one of the communication transceivers becoming inoperative, an antenna control network operates to adjust beam width of a selected one of the variable-width antenna beams by switching configuration of an associated one of the switchable antenna elements (S1f, S2f, S3f, S1n, S2n, S3n). In another approach each antenna within a primary array (S1n, S2n, S3n) is disposed to project a beam over a single sector, while each element within a redundant array (S1f, S2f, S3f) is designed to encompass a pair of adjacent sectors. Upon one of the transceivers becoming inoperative, a transceiver nominally assigned to cover a sector neighboring the failed sector is connected to the element within the redundant array (S1f, S2f, S3f) encompassing both the failed and neighboring sectors.

Abstract translation: 本文公开了一种用于在蜂窝基站内使用扇形天线布置以在周围小区内提供冗余覆盖的系统和方法。 天线馈送网络将扇区天线布置的元件连接到一组通信收发器（79,80,81），其中馈电网络包括用于在故障时组合所选择的天线波束的组合器阵列（92,94,96） 的一个通信收发器（79,80,81）。 开关网络（102,104,106）用于将所得到的组合波束提供给通信收发器中的可操作的一个。 或者，扇形天线布置包括具有多个可切换天线元件A1-A3的天线阵列，每个天线元件连接到通信收发器之一。 可切换天线元件A1-A3在多个单元扇区上投影一组可变宽度的天线波束。 在一个通信收发器变得不起作用的情况下，天线控制网络通过将相关联的一个可切换天线元件（S1f，S2f，S3f，S1n，...）切换配置来调整所选择的一个可变宽度天线波束的波束宽度， S2n，S3n）。 在另一种方法中，主阵列（S1n，S2n，S3n）中的每个天线被布置成在单个扇区上投影波束，而冗余阵列（S1f，S2f，S3f）内的每个元件被设计成包含一对相邻扇区 。 在收发器中的一个变得不起作用的情况下，名义上被分配以覆盖与故障扇区相邻的扇区的收发器连接到包含故障和相邻扇区的冗余阵列（S1f，S2f，S3f）内的元件。

公开(公告)号：WO1996010873A1

公开(公告)日：1996-04-11

申请号：PCT/US1995012390

申请日：1995-09-27

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  EASTON, Kenneth, D. ,  LEVIN, Jeffrey, A.

IPC: H04B07/26

CPC classification number: H04J13/0048 ,  H04B1/707 ,  H04B1/70752 ,  H04B1/70756 ,  H04B1/7117 ,  H04B7/2628 ,  H04B2201/70703

Abstract: An integrated search processor (128) used in a modem for a spread spectrum communications system buffers receive samples and utilizes a time sliced transform processor operating on successive offsets from the buffer. The search processor (128) autonomously steps through a search as configured by a microprocessor (136) specified search parameter set, which can include the group of antennas (112) to search over, the starting offset and width of the search window to search over, and the number of Walsh symbols to accumulate results at each offset. The search processor (128) calculates the correlation energy at each offset, and presents a summary report of the best paths found in the search to use for demodulation element reassignment. This reduces the searching process related workload of the microprocessor (136) and also reduces the modem costs by allowing a complete channel element modem (110) circuit to be produced in a single IC.

Abstract translation: 在用于扩频通信系统的调制解调器中使用的集成搜索处理器（128）缓冲器接收采样并利用对来自缓冲器的连续偏移进行操作的时间分片变换处理器。 搜索处理器（128）自主地通过由微处理器（136）指定的搜索参数集合配置的搜索进行搜索，该搜索参数集可以包括要搜索的天线组112（112），搜索窗口的起始偏移和宽度进行搜索 ，以及在每个偏移处累积结果的沃尔什符号的数量。 搜索处理器（128）计算每个偏移处的相关能量，并呈现搜索中找到的用于解调元件重新分配的最佳路径的汇总报告。 这减少了微处理器（136）的搜索过程相关工作量，并且还通过允许在单个IC中产生完整的信道元素调制解调器（110）电路来降低调制解调器成本。

公开(公告)号：WO1996002092A1

公开(公告)日：1996-01-25

申请号：PCT/US1995008475

申请日：1995-07-05

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  CARTER, Stephen, S.

IPC: H04B07/185

CPC classification number: G01S19/29 ,  G01S19/30 ,  H04B7/216

Abstract: The present invention enables a radio to rapidly acquire a pilot signal from a satellite after the radio has been out of contact with the satellite for a length of time. The radio first acquires a satellite pilot signal and determines its position in relation to the earth. If the radio is now shut off or loses track of the pilot signal for some reason, the radio keeps track of the length of time that it has been out of contact with the satellite. This length of time enables the radio to estimate the extent of possible changes and, therefore, which satellites might be in view and their relative positions to the radio. This allows the radio to make assumptions about variables such as the Doppler shift of the signal that reduces the uncertainty inherent in the acquisition process and the size of the window that must be searched.

Abstract translation: 本发明使得无线电在无线电已经与卫星脱离了一段时间后，迅速地从卫星获取导频信号。 无线电首先获取卫星导频信号并确定其相对于地球的位置。 如果由于某种原因现在无线电被关闭或失去了导频信号的轨迹，那么无线电将跟踪与卫星脱离接触的时间长短。 这个时间长度使得无线电能够估计可能的变化的程度，并且因此估计哪些卫星可能在视线中以及它们对无线电的相对位置。 这允许无线电设备对诸如减少采集过程中固有的不确定性的信号的多普勒频移以及必须搜索的窗口的大小的变量做出假设。

公开(公告)号：WO1995023477A1

公开(公告)日：1995-08-31

申请号：PCT/US1995002447

申请日：1995-02-28

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  SIH, Gilbert, C.

IPC: H04M09/08

CPC classification number: H04M9/082 ,  H04B3/234

Abstract: A method and apparatus are described for detecting doubletalk in an acoustic echo canceller. In the present invention, doubletalk detector (42) examines the spectral characteristic of the near-end audio signal computed by FFT element (40) and the spectral characteristics of the far-end audio signal computed by FFT element (44) and determines from the comparison if a condition of doubletalk exists. An exemplary implementation of the present invention is presented in an acoustic echo canceller wherein the adaptation of the adaptive filter taps of adaptive filter (46) is inhibited during periods of doubletalk.

Abstract translation: 描述了一种用于在声学回声消除器中检测doubletalk的方法和装置。 在本发明中，双重检测器（42）检查由FFT元件（40）计算的近端音频信号的频谱特性和由FFT元件（44）计算的远端音频信号的频谱特性，并从 比较如果存在doubletalk的条件。 本发明的示例性实施方式在声学回声消除器中呈现，其中自适应滤波器（46）的自适应滤波器抽头的自适应在双脉冲周期期间被禁止。

公开(公告)号：WO1995023460A1

公开(公告)日：1995-08-31

申请号：PCT/US1995002125

申请日：1995-02-17

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  WEILAND, Ana, L. ,  KORNFELD, Richard, K. ,  KERR, Richard, J. ,  MALONEY, John, E. ,  WILSON, Nathaniel, B.

IPC: H04B07/005

CPC classification number: H04W52/06 ,  H04W52/36 ,  H04W52/52

Abstract: The process and apparatus of the present invention limits the output power of a radiotelephone, operating in a cellular system in the preferred embodiment. This ensures the transmitted sidebands and synthesizer phase noise remains within a certain specification. This is accomplished by power detection and a correction accumulator that together generate a gain control signal by limiting the gain adjustment to a maximum value, even when the cell site communicating with the radiotelephone is sending power turn-up commands to the radiotelephone. This process includes dynamically correcting the output level of the transmitter due to gain variations in the transmitter stages or gain control elements.

Abstract translation: 本发明的方法和装置限制在优选实施例中在蜂窝系统中操作的无线电话机的输出功率。 这确保传输的边带和合成器相位噪声保持在一定的规格内。 这通过功率检测和校正累加器来实现，即使当与无线电话机通信的小区站点向无线电话机发送功率开启命令时，通过将增益调整限制为最大值来一起生成增益控制信号。 该过程包括由于发射机级或增益控制元件中的增益变化而动态校正发射机的输出电平。

公开(公告)号：WO1995021494A1

公开(公告)日：1995-08-10

申请号：PCT/US1995001339

申请日：1995-02-01

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  WHEATLEY, Charles, E., III

IPC: H04B07/005

CPC classification number: H04W52/226 ,  H04W52/225 ,  H04W52/54

Abstract: A link quality improvement system for a cellular communication system in which portable units (16, 18) are used to facilitate communication of information signals between system users, via at least one cell-site (12, 14), using code division multiple access spread spectrum communication signals. The system enables users to improve the quality of reverse communication links from the portable units (16, 18) to the cell-site (12) by providing to each system user a link quality signal indicative of power received at the cell-site relative to an optimum level of received power. At a cell-site (12) communicating with a portable unit (16) associated with a particular system user, the portable unit transmitted power is measured as received at the cell-site (12). A command signal is generated at the cell-site (12) and transmitted to the portable unit (16) for adjusting portable unit transmitter power. The command signals are also accumulated in order to enable generation of a link quality signal in response thereto. In a preferred implementation the link quality signal is an audible interference signal inducing the system user to adjust orientation of the portable communication unit so as to improve signal quality on the reverse link.

Abstract translation: 一种用于蜂窝通信系统的链路质量改进系统，其中使用便携式单元（16,18）来通过至少一个小区站点（12,14）在系统用户之间通信使用码分多址传播 频谱通信信号。 该系统使得用户能够通过向每个系统用户提供指示在小区站点相对于所述小区站点接收的功率的链路质量信号来提高从便携式单元（16,18）到小区站点（12）的反向通信链路的质量 最佳接收功率级别。 在与与特定系统用户相关联的便携式单元（16）通信的小区站点（12）处，便携式单元发射功率在小区站点（12）处被接收到。 在小区站点（12）生成指令信号，并发送到便携式单元（16），用于调整便携式单元发射机功率。 还累积了命令信号，以便响应于此产生链路质量信号。 在优选实施例中，链路质量信号是可听干扰信号，引起系统用户调整便携式通信单元的方位，从而提高反向链路上的信号质量。

公开(公告)号：WO1995014359A1

公开(公告)日：1995-05-26

申请号：PCT/US1994012966

申请日：1994-11-08

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  JACOBS, Paul, E.

IPC: H04Q07/32

CPC classification number: H04W88/02

Abstract: The data communication system of the present invention enables an electronic accessory, such as a computer, to communicate data in both an analog type cellular radiotelephone system and a digital type cellular radiotelephone system. The data communication system first determines in which type of system it is operating and the radiotelephone (101) then uses the data signal at either the analog input port (104) or the digital input port (105), depending on the type of system.

Abstract translation: 本发明的数据通信系统能够使诸如计算机的电子附件在模拟型蜂窝无线电话系统和数字型蜂窝无线电话系统中通信数据。 数据通信系统首先确定其正在操作的系统的类型，然后根据系统的类型，无线电话机（101）在模拟输入端口（104）或数字输入端口（105）处使用数据信号。

公开(公告)号：WO1995014345A1

公开(公告)日：1995-05-26

申请号：PCT/US1994012372

申请日：1994-10-26

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  GROB, Matthew, S. ,  KARMI, Gadi

IPC: H04M11/06

CPC classification number: H04W4/18 ,  H04M11/06

Abstract: The process for the present invention enables a wireless modem to accept from a computer commands that it does not recognize. The computer (210) sends a command to the wireless modem (260) to forward all commands to modems (270) at a base station (280). The base station modems (270) then interpret the commands and act accordingly. When the computer (210) no longer wishes the wireless modem (260) to ignore commands it does not recognize, the computer (210) sends another command to the modem (260) instructing it to either flag unknown commands as errors or to ignore them.

Abstract translation: 本发明的过程使得无线调制解调器能够从计算机接受它不能识别的命令。 计算机（210）向无线调制解调器（260）发送命令，以将所有命令转发到基站（280）处的调制解调器（270）。 基站调制解调器（270）然后解释命令并相应地进行操作。 当计算机（210）不再希望无线调制解调器（260）忽略其不能识别的命令时，计算机（210）向调制解调器（260）发送另一命令，指示其将未知命令标记为错误或忽略它们 。

公开(公告)号：WO1995012943A1

公开(公告)日：1995-05-11

申请号：PCT/US1994012373

申请日：1994-10-26

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  ZEHAVI, Ephraim ,  VITERBI, Andrew, J.

IPC: H04L25/02

CPC classification number: H04L1/08 ,  H03M13/2707 ,  H04B1/707 ,  H04L1/0013 ,  H04L1/0043 ,  H04L1/0052 ,  H04L1/0065 ,  H04L1/0071

Abstract: A communication system for transmitting variable rate data is disclosed wherein redundancy is added to the variable rate data to provide repetition symbols. The repetition symbol data is transmitted with symbol energy scaled in accordance to the rate of the variable rate data when the variable rate data is greater than or equal to a nominal data rate. When the variable rate data is less than the nominal data rate, the symbol data is transmitted at nominal symbol energy and redundancy is removed by transmission gating of a proportion of the transmission symbol data determined in accordance with the rate of the variable rate data. Furthermore, a receiver for receiving the variable rate data is disclosed which uses the redundancy in the transmitted data symbol stream to make a corrected estimate of the transmitted symbol data.

Abstract translation: 公开了用于发送可变速率数据的通信系统，其中将冗余添加到可变速率数据以提供重复符号。 当可变速率数据大于或等于标称数据速率时，按照可变速率数据的速率对符号能量进行缩放，发送重复符号数据。 当可变速率数据小于标称数据速率时，以标称符号能量发送符号数据，并且通过根据可变速率数据的速率确定的传输符号数据的一部分的传输门控来去除冗余。 此外，公开了一种用于接收可变速率数据的接收机，其使用发送的数据符号流中的冗余来对所发送的符号数据进行校正的估计。