公开(公告)号：WO1998019431A1

公开(公告)日：1998-05-07

申请号：PCT/US1997019676

申请日：1997-10-27

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  TIEDEMANN, Edward, G., Jr. ,  LIN, Yu-Chuan

IPC: H04L25/02

CPC classification number: H04L1/208 ,  H04L1/0046 ,  H04L25/0262

Abstract: A system and method for determining the data rate of a frame of data at a receiver (50) of a variable rate communications system. A vocoder at a transmitter encodes a frame of data at one of the rates of a predetermined set of rates. The data rate is dependent on the speech activity during the time frame of the data. The data frame is also formatted with overhead bits, including bits for error detection and detection. At the receiver (50), the data rate for the frame is determined based on hypothesis testing. Because the data rate is based on speech activity, a hypothesis test may be designed based on the statistics of speech activity. The received data frame is first decoded by a decoder (34) into information bits at the most probable rate as provided by the hypothesis testing module (36). Data check element (42) generates error metrics for the decoded information bits. If the error metrics indicate that the information bits are of good quality, then the information bits are presented to a vocoder (44) at the receiver to be processed for interface with the user. If the error metrics indicate that the information bits have not been properly decoded, then decoder (34) decodes the received data frame at the other rates of the set of rates until the actual data rate is determined.

Abstract translation: 一种用于在可变速率通信系统的接收机（50）处确定数据帧的数据速率的系统和方法。 发射机的声码器以预定速率集合的速率之一编码数据帧。 数据速率取决于数据时间段内的语音活动。 数据帧也被格式化为开销位，包括用于错误检测和检测的位。 在接收机（50）处，基于假设检验来确定帧的数据速率。 由于数据速率是基于语音活动的，所以可以基于语音活动的统计来设计假设检验。 接收到的数据帧首先由解码器（34）以假设检验模块（36）提供的最可能的速率被解码成信息比特。 数据检查元件（42）产生解码信息位的误差量度。 如果错误度量指示信息比特质量好，则信息比特被提供给接收者处的声码器（44），以与用户进行接口。 如果错误度量指示信息位未被正确解码，则解码器（34）以所述一组速率的其他速率对接收到的数据帧进行解码，直到确定实际数据速率。

公开(公告)号：WO1998019359A1

公开(公告)日：1998-05-07

申请号：PCT/US1997019679

申请日：1997-10-27

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  RHINE, Jeff, J.

IPC: H01Q01/12

CPC classification number: H01Q1/1207 ,  H01Q1/12

Abstract: A support assembly for supporting a plurality of inclined plates (22) arranged in an array around a central axis includes a top support bracket (25) for supporting the upper edges (40) of the plates (22) and a plurality of base brackets (26) for supporting the lower edges (62) of the respective plates (22). The top support bracket (25) has a central axis aligned with the central axis of the array, and a plurality of side edges (28). Each side edge (28) has a downwardly inclined rim (32) at a predetermined angle corresponding to the desired plate orientation and a downwardly facing groove (42) for receiving the upper edge (40) of the respective plate (22). Each base bracket (26) has a base (46) for securing against a substantially flat support surface (16), a snap lock arm (52, 54) extending upwardly from the base (46) towards a respective side edge (28) of the top bracket (25) at a predetermined angle equal to the rim angle for snap engagement in an opening (60) spaced from the lower edge of the respective plate (22), and a groove (55) at the lower end of the snap lock arm (52, 54) for receiving the lower edge (62) of the respective inclined plate (22).

Abstract translation: 用于支撑围绕中心轴线布置成阵列的多个倾斜板（22）的支撑组件包括用于支撑板（22）的上边缘（40）的顶部支撑托架（25）和多个基座托架 26），用于支撑相应板（22）的下边缘（62）。 顶部支撑托架（25）具有与阵列的中心轴对准的中心轴线和多个侧边缘（28）。 每个侧边缘（28）具有对应于期望的板取向的预定角度的向下倾斜的边缘（32）和用于接收相应板（22）的上边缘（40）的面向下的凹槽（42）。 每个基座支架（26）具有用于固定在基本上平坦的支撑表面（16）上的基座（46），从基座（46）向上延伸朝向相应的侧边缘（28）向上延伸的卡扣锁定臂（52,54） 所述顶部托架（25）以等于所述边缘角度的预定角度，用于卡扣接合在与相应板（22）的下边缘间隔开的开口（60）中;以及在所述卡扣的下端处的凹槽（55） 锁定臂（52,54），用于接收相应倾斜板（22）的下边缘（62）。

公开(公告)号：WO1998018242A1

公开(公告)日：1998-04-30

申请号：PCT/US1997018625

申请日：1997-10-09

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  CHEN, Tao

IPC: H04L25/02

CPC classification number: H04L25/0262 ,  H04L1/0046

Abstract: Apparatus and method employed in a communications system which has a transmitter (2) and a receiver (4), where the receiver determines at which of several rates individual frames in a signal have been transmitted by the transmitter. For example, if the transmitter (2) employs four transmission rates, the receiver (2) decodes each frame of the received signal based on the four rates to produce four cyclic redundancy check (CRC) bits, four symbol error rate (SER) values and one or more Yamamoto check values. If only two of the CRC bits check, then the receiver (2) compares to each other the SER values for those two rates to determine at which of the two rates a current frame was transmitted. If only one of the CRC bits check for a given rate, then the SER value for that rate is compared with a maximum SER threshold for that rate. Additionally, SER values for the other rates can be compared to minimum SER thresholds. Furthermore, the Yamamoto check values can be analyzed to determine whether looser or tighter minimum and maximum SER thresholds should be employed if the Yamamoto values check for the current rate, or do not check, respectively.

Abstract translation: 在具有发射机（2）和接收机（4）的通信系统中采用的装置和方法，其中接收机确定信号中的各个帧已经由发射机发送的几个速率中的哪一个。 例如，如果发射机（2）采用四个传输速率，则接收机（2）基于四个速率解码接收信号的每个帧，以产生四个循环冗余校验（CRC）位，四个符号错误率（SER）值 和一个或多个Yamamoto检查值。 如果只有两个CRC比特检查，则接收机（2）彼此比较这两个速率的SER值，以确定当前帧在两个速率中的哪一个发送。 如果只有一个CRC位检查给定的速率，则将该速率的SER值与该速率的最大SER阈值进行比较。 另外，可以将其他速率的SER值与最小SER阈值相比较。 此外，如果Yamamoto值检查当前速率，或者不检查，可以分析山本检查值，以确定是否应采用更宽松或更紧密的最小和最大SER阈值。

公开(公告)号：WO1998018212A2

公开(公告)日：1998-04-30

申请号：PCT/US1997019056

申请日：1997-10-20

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  CHEN, Tao

IPC: H04B07/00

CPC classification number: H04W52/367 ,  H04W52/362

Abstract: A base station (10) of the cellular telephone forward link power control system transmits frames initially at a high default transmit power level, then decreases the power level incrementally until either a frame erasure is detected, triggering an immediate sharp increase in transmission power, or until a predetermined period of time has elapsed, after which the base station (10) performs a fast downward move in the transmit power level. The fast downward move constitutes a sharp reduction in the transmit power level. In one example, the fast downward move is performed if one hundred consecutive frames are successively transmitted without a frame erasure. By providing the fast downward move in transmit power, the power transmitted is decreased on the average. In particular, the fast downward move allows the amount of transmit power to be reduced significantly in circumstances where slow incremental decreases in power would result in excess power being employed. Method and apparatus embodiments are disclosed.

Abstract translation: 蜂窝电话前向链路功率控制系统的基站（10）最初以高默认发射功率电平发射帧，然后递增地降低功率电平，直到检测到帧擦除，触发发射功率立即急剧增加，或者 直到经过了预定时间段，之后基站（10）在发射功率电平中进行快速向下移动。 快速向下移动构成了发射功率水平的急剧下降。 在一个示例中，如果连续发送100个连续帧而没有帧擦除，则执行快速向下移动。 通过提供发射功率的快速向下移动，传输的功率平均降低。 特别地，快速向下移动允许在功率的慢增量减小将导致使用过多功率的情况下显着降低发射功率的量。 公开了方法和设备实施例。

公开(公告)号：WO1998015106A2

公开(公告)日：1998-04-09

申请号：PCT/US1997017057

申请日：1997-09-24

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  WILLKIE, James, J. ,  PHILLIPS, Marc, S. ,  DOAN, David, B.

IPC: H04M11/06

CPC classification number: H04W88/02

Abstract: The cellular telephone interface system has the capability to automatically choose between AMPS and CDMA cellular transmission protocols for data transmissions. The cellular telephone interface system includes a PC-modem card, such as a PCMCIA card (8), for interconnecting the cellular telephone (4) to a data source, such as a laptop computer, portable facsimile machine, or the like. The cellular telephone (4) is capable of transmission in accordance with either AMPS or CDMA transmission protocols. For AMPS, the PC-modem card (8) converts data signals received from the data source into PCM signals for forwarding to the cellular telephone (4). The cellular telephone converts the PCM signals into AMPS formatted signals for transmission to a local cellular base station. For CDMA transmission, the PC-modem card (8) converts the data signals received from the data source into RS-232E signals for transmission to the cellular telephone.

Abstract translation: 蜂窝电话接口系统具有在AMPS和CDMA蜂窝传输协议之间自动选择用于数据传输的能力。 蜂窝电话接口系统包括诸如PCMCIA卡（PC）的PC调制解调器卡，用于将蜂窝电话（4）与数据源（诸如膝上型计算机，便携式传真机等）相互连接。 蜂窝电话（4）能够根据AMPS或CDMA传输协议进行传输。 对于AMPS，PC调制解调器卡（8）将从数据源接收的数据信号转换成PCM信号以转发到蜂窝电话（4）。 蜂窝电话将PCM信号转换成AMPS格式的信号，以便传输到本地蜂窝基站。 对于CDMA传输，PC调制解调器卡（8）将从数据源接收的数据信号转换成RS-232E信号以传输到蜂窝电话。

公开(公告)号：WO1998014796A2

公开(公告)日：1998-04-09

申请号：PCT/US1997017331

申请日：1997-09-26

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  LEVANON, Nadav

IPC: G01S05/12

CPC classification number: G01S5/12 ,  G01S5/0027 ,  H04B7/18547 ,  H04B7/18554

Abstract: A system and method for passively determining the position of a user terminal (for example, a mobile wireless telephone) in a low-Earth orbit satellite communications system (100). The system includes a user terminal (106A, 106B, 106C), at least two satellites (104A, 104B) with known positions and known velocities, and a gateway (102) (that is, a terrestrial base station) for communicating with the user terminal (106A, 106B, 106C) through the satellites (104A, 104B). The method includes the steps of determining a range difference parameter (804) and a range-rate difference parameter (806). A range difference parameter represents the difference between (1) the distance between a first one of the satellites (104A, 104B) and the user terminal (106A, 106B, 106C) and (2) the distance between a second one of the satellites (104A, 104B) and the user terminal (106A, 106B, 106C). A range-rate difference parameter represents the difference between (a) a relative radial velocity between a first one of the satellites (104A, 104B) and the user terminal (106A, 106B, 106C) and (b) a relative radial velocity between a second one of the satellites (104A, 104B) and the user terminal (106A, 106B, 106C). The position of the user terminal (106A, 106B, 106C) on the Earth's surface is then determined (810) based on the known positions and known velocities of the satellites, the range difference parameter, and the range-rate difference parameter.

Abstract translation: 一种用于被动地确定低地球轨道卫星通信系统（100）中的用户终端（例如，移动无线电话）的位置的系统和方法。 该系统包括具有已知位置和已知速度的至少两个卫星（104A，104B）的用户终端（106A，106B，106C）以及用于与用户通信的网关（102）（即地面基站） 终端（106A，106B，106C）通过卫星（104A，104B）。 该方法包括确定范围差参数（804）和范围速率差参数（806）的步骤。 范围差参数表示（1）卫星（104A，104B）中的第一卫星与用户终端（106A，106B，106C）之间的距离与（2）第二卫星之间的距离 104A，104B）和用户终端（106A，106B，106C）。 距离率差参数表示（a）卫星（104A，104B）中的第一卫星与用户终端（106A，106B，106C）之间的相对径向速度与（b）相对径向速度 第二卫星（104A，104B）和用户终端（106A，106B，106C）。 然后，基于卫星的已知位置和已知速度，距离差参数和距离速率差参数来确定用户终端（106A，106B，106C）在地球表面上的位置（810）。

公开(公告)号：WO1998005087A1

公开(公告)日：1998-02-05

申请号：PCT/US1997013592

申请日：1997-07-31

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  FILIPOVIC, Daniel

IPC: H01Q01/36

CPC classification number: H01Q11/08 ,  H01Q1/362 ,  H01Q5/40

Abstract: A dual-band coupled-segment helical antenna is provided operating in two frequency bands. The dual-band coupled-segment helical antenna (1200) includes a radiator portion (1202) having two sets of one or more helically wound radiators (1204, 1212) extending from one end (1234) of the radiator portion (1202) to the other end (1232) of the radiator portion (1202). Radiators of the firs set of radiators (1204) are comprised of two segments: a first radiator segment (1208) extends in a helical fashion from one end of the radiator portion (1202) toward the other end of the radiator portion (1202); and a second radiator segment (1210) is U-shaped and extends in a helical fashion from the first end of the radiator portion (1202) toward the second end of the radiator portion (1202). Radiators of the second set of radiators (1212) are comprised of a radiator (1212) disposed within said U-shaped segment (1210). The first set of radiators (1204) resonates at a first frequency and the second set of radiators (1212) resonates at a second frequency thereby providing dual-band operation, with minimal coupling between the frequency bands.

Abstract translation: 提供在两个频带中操作的双频带耦合段螺旋天线。 双频带耦合段螺旋天线（1200）包括散热器部分（1202），该散热器部分具有两组从散热器部分（1202）的一端（1234）延伸到一个或多个螺旋缠绕的辐射器（1204,1212） 散热器部分（1202）的另一端（1232）。 第一组散热器（1204）的散热器由两个部分组成：第一散热器部分（1208）以螺旋方式从散热器部分（1202）的一端向散热器部分（1202）的另一端延伸; 并且第二散热器部分（1210）为U形并且从所述散热器部分（1202）的所述第一端朝向所述散热器部分（1202）的第二端以螺旋方式延伸。 第二组散热器（1212）的散热器由设置在所述U形段（1210）内的散热器（1212）组成。 第一组辐射器（1204）以第一频率谐振，第二组辐射器（1212）以第二频率谐振，从而提供双频带操作，并且在频带之间具有最小的耦合。

公开(公告)号：WO1997050267A2

公开(公告)日：1997-12-31

申请号：PCT/US1997010832

申请日：1997-06-23

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  LEKVEN, Eric, J. ,  YAO, Yu-Dong ,  GROB, Matthew, S.

IPC: H04Q07/28

CPC classification number: H04W4/10 ,  H04W76/45

Abstract: A method and apparatus to provide access to a dispatch system is disclosed. A communications manager (40) grants an exclusive system talker privilege to one remote unit (10) in the system at a time. After a remote unit (10) requests and is designated as the exclusive system talker, no other remote unit (20, 22) may transmit for a first pre-determined amount of time. After the first pre-determined time has elapsed, any other remote unit (20, 22) may request the exclusive system talker privilege and become the exclusive system talker. The exclusive system talker privilege is revoked by the communications manager (40) to any remote unit who retains the exclusive system talker privilege for more than a second pre-determined amount of time. The exclusive system talker privilege is also revoked upon the release of a push-to-talk button on a remote unit (10). Furthermore, a base station (44) in communication with a remote unit (10) designated as the exclusive system talker will generate a surrogate relinquishment request to the communications manager (40) if the exclusive system talker travels outside the coverage area of the system, loses power, or is destroyed.

Abstract translation: 公开了一种提供对调度系统的访问的方法和装置。 通信管理器（40）一次向系统中的一个远程单元（10）授予独占系统讲话者特权。 在远程单元（10）请求并被指定为专用系统讲话者之后，没有其他远程单元（20,22）可以发送第一预定时间量。 在第一预定时间过去之后，任何其他远程单元（20,22）可以请求专用系统讲话者特权并成为专用系统讲话者。 通信管理器（40）将独占系统讲话者权限撤销到任何保留专用系统讲话者特权超过第二预定时间量的远程单元。 在远程单元（10）上释放按键通话按钮时，专用系统讲话者权限也被撤销。 此外，如果专用系统讲话者在系统的覆盖区域外行进，则与指定为专用系统讲话者的远程单元（10）通信的基站（44）将向通信管理器（40）生成替代放弃请求， 失去力量，或被毁灭。

公开(公告)号：WO1997048205A1

公开(公告)日：1997-12-18

申请号：PCT/US1997010283

申请日：1997-06-11

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  GROB, Matthew, S. ,  TIEDEMANN, Edward, G., Jr. ,  KUDRIMOTI, Abhijit

IPC: H04L01/00

CPC classification number: H04L7/0083 ,  H04J3/0632

Abstract: Synchronization and bit count integrity of a synchronous data stream is preserved end to end even as it is transmitted via a medium which does not preserve the synchronous nature of the synchronous data stream. A terminal equipment unit (100) produces a constant rate bit stream which is provided to a communications unit (110). The communications unit (110) produces a first data frame comprising a first set of bits from the constant rate bit stream and a first length field value. A second data frame is produced which comprises a second set of bits from the constant rate bit stream and a second length field. A third data frame is produced which comprises a third set of bits from the constant rate bit stream and a third length field value. The first, second, and third data frames are transmitted to a base unit (118) which places the first set of bits from the first frame into a queue (150). A set of fill bits equal to the maximum number of bits contained in any frame is then placed into the queue (150). The base unit (118) then determines the number of bits in the second set of bits of the third data frame, based on the first length field value and the third length field value. The base unit (118) overwrites excess fill bits in the queue (150) with the third set of bits. The number of excess fill bits is equal to the difference between the maximum possible number of bits which may be contained in any frame and the number of bits in the second set of bits.

Abstract translation: 即使通过不保持同步数据流的同步性质的介质来传输同步数据流的同步和位计数完整性也保持端到端。 终端设备单元（100）产生提供给通信单元（110）的恒定比特流。 通信单元（110）产生包括来自恒定比特流和第一长度字段值的第一组比特的第一数据帧。 产生第二数据帧，其包括来自恒定比特流和第二长度字段的第二组比特。 产生包括来自恒定比特流的第三组比特和第三长度字段值的第三数据帧。 第一，第二和第三数据帧被发送到将第一组位从第一帧放入队列（150）的基本单元（118）。 然后，将等于包含在任何帧中的最大位数的一组填充位置入队列（150）。 然后，基本单元（118）基于第一长度字段值和第三长度字段值来确定第三数据帧的第二组位中的位数。 基本单元（118）用第三组位覆盖队列（150）中的多余填充位。 多余填充位的数量等于可能包含在任何帧中的最大可能位数与第二组位中的位数之间的差。

公开(公告)号：WO1997046044A1

公开(公告)日：1997-12-04

申请号：PCT/US1997009287

申请日：1997-05-28

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  TIEDEMANN, Edward, G., Jr. ,  JOU, Yu-Cheun ,  ODENWALDER, Joseph, P.

IPC: H04Q07/38

CPC classification number: H04W28/18

Abstract: The present invention is a method and apparatus for transmitting high rate data packet in a CDMA communication system. The transmission system transmits a first channel assignment message indicating the at least one additional channel that will be used to support the high rate data packet. The first channel assignment message is sent in advance of the onset of high rate data communications. In addition the present invention provides within the first frame of high rate data a duplicate channel assignment message. A remote receiver uses the channel assignment messages to initialize its demodulation elements (114 and 120) to receive the additional information carried on the at least one additional channel.

Abstract translation: 本发明是用于在CDMA通信系统中发送高速率数据分组的方法和装置。 传输系统发送指示将用于支持高速率数据分组的至少一个附加信道的第一信道分配消息。 第一信道分配消息在高速率数据通信开始之前发送。 此外，本发明在高速率数据的第一帧内提供重复的信道分配消息。 远程接收机使用信道分配消息来初始化其解调元件（114和120）以接收在至少一个附加信道上承载的附加信息。