公开(公告)号：WO1995014357A1

公开(公告)日：1995-05-26

申请号：PCT/US1994013092

申请日：1994-11-14

Applicant: QUALCOMM INCORPORATED

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

IPC: H04Q07/22

CPC classification number: H04W76/20

Abstract: The process of the present invention enables a mobile radiotelephone to signal a request for a voice connection after transmission of a facsimile image. The user depresses a button on the radiotelephone when a voice connection is needed. The radiotelephone transmits the request as a frame of data to the base station. The base station interprets the request and, after the facsimile transmission, turns off the modems and turns on the speech coders in anticipation of the voice signal.

Abstract translation: 本发明的过程使移动无线电话机能够在发送传真图像之后发出语音连接请求。 当需要语音连接时，用户按下无线电话上的按钮。 无线电话机将请求作为数据帧发送到基站。 基站解释该请求，并且在传真传输之后，关闭调制解调器并且在语音信号的预期中打开语音编码器。

公开(公告)号：WO1995014347A1

公开(公告)日：1995-05-26

申请号：PCT/US1994013175

申请日：1994-11-15

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  PROPACH, David, S. ,  GROB, Matthew, S. ,  JACOBS, Paul, E. ,  KARMI, Gadi

IPC: H04N01/327

CPC classification number: H04N1/32641 ,  H04N1/32619 ,  H04N1/32683 ,  H04N1/327 ,  H04N1/32795 ,  H04N1/33323 ,  H04N1/33376 ,  H04N1/411 ,  H04N2201/33357 ,  H04N2201/33378 ,  H04N2201/33385

Abstract: System and method for minimizing data bottlenecks in Low Data Rate Networks (LDRNs) that communicate facsimile transmissions. An LDRN is a facsimile network having a transmission data rate less than the data rate of the FAX machines serviced by the network. The system and method can be implemented in any type of LDRN, including analog and digital wired LDRNs, as well as analog and digital wireless (e.g., cellular) LDRNs. The system and method involve processing the facsimile transmissions in order to make the data rates of the LDRN and the FAX machines compatible, thereby minimizing any potential facsimile data bottlenecks that may occur in the LDRN due to its slower data rate.

Abstract translation: 用于最小化通信传真传输的低数据速率网络（LDRN）中的数据瓶颈的系统和方法。 LDRN是具有小于由网络服务的传真机的数据速率的传输数据速率的传真网络。 该系统和方法可以在任何类型的LDRN中实现，包括模拟和数字有线LDRN，以及模拟和数字无线（例如，蜂窝）LDRN。 该系统和方法涉及处理传真传输，以便使LDRN和传真机的数据速率相容，从而最小化由于其较慢的数据速率而可能在LDRN中发生的任何可能的传真数据瓶颈。

公开(公告)号：WO1994029953A1

公开(公告)日：1994-12-22

申请号：PCT/US1994006229

申请日：1994-06-03

Applicant: QUALCOMM INCORPORATED ,  ALPS ELECTRIC CO., LTD.

Inventor： QUALCOMM INCORPORATED ,  ALPS ELECTRIC CO., LTD. ,  KORNFELD, Richard, K. ,  WEILAND, Ana, L. ,  OKAZAKI, Mitsunari

IPC: H03G01/00

CPC classification number: H03G1/04 ,  H03G1/007

Abstract: An amplifier for a radio transceiver overcomes the problem of gain being dependent on ambient temperature. Transmission power is matched to strength of a received signal by providing matched dual gate FET amplifier stages in both the transmitter and receiver portions of the transceiver. Changes in gain due to temperature are compensated for by detecting changes in the FET drain current by measuring the source voltage of the amplifier. The FET source voltage is compared to a reference voltage, and the output signal resulting from the comparison is provided as a control signal to one of the FET gates.

Abstract translation: 用于无线电收发器的放大器克服了增益取决于环境温度的问题。 通过在收发器的发射器和接收器部分中提供匹配的双栅极FET放大器级，发射功率与接收信号的强度相匹配。 通过测量放大器的源极电压来检测FET漏极电流的变化来补偿由温度引起的增益变化。 将FET源极电压与参考电压进行比较，从比较得到的输出信号作为控制信号提供给FET栅极之一。

公开(公告)号：WO1993018596A1

公开(公告)日：1993-09-16

申请号：PCT/US1993001981

申请日：1993-03-04

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  TIEDEMANN, Edward, G., Jr. ,  WEAVER, Lindsay, A., Jr. ,  KERR, Richard, J. ,  GEIB, Kenneth, M.

IPC: H04J03/16

CPC classification number: H04B1/1615 ,  H04B2201/70709 ,  H04W24/00 ,  H04W52/0216 ,  H04W52/0219 ,  H04W56/00 ,  H04W68/02 ,  H04W72/04 ,  H04W72/0413 ,  H04W72/12 ,  H04W74/04 ,  Y02D70/1222 ,  Y02D70/164 ,  Y02D70/26 ,  Y02D70/40

Abstract: A system for reducing receiver power consumption in communication system having a transmitter (141) and one or more receivers (146) schedules periodic message in "slot". Each receiver is assigned a slot during which it monitors the transmission. The transmitter (141) transmits messages to the receiver only during the assigned slots. The receiver is in an "active state" during its assigned slot. During the "inactive state", which is the time period between successive occurrences of its assigned slot, the receiver may perform any action not requiring coordination with transmitter. At a time during the inactive state shortly before the assigned slot, the receiver applies power to these components and performs initialization. Such initialization may include reacquiring a pilot channel signal to which the receiver may synchronize itself if its timing signal have drifted out of synchronization with those of the transmitter during the preceding inactive state.

Abstract translation: 一种用于在具有发射机（141）和一个或多个接收机（146）的通信系统中降低接收机功率消耗的系统在“时隙”中调度周期性消息。 每个接收机都被分配一个插槽，在此时间段中它监视传输。 发送器（141）仅在分配的时隙期间向接收者发送消息。 接收机在其分配的时隙中处于“活动状态”。 在“不活动状态”期间，其是其分配时隙的连续出现之间的时间段，接收机可以执行不需要与发射机协调的任何动作。 在分配时隙之前不活动状态的时间，接收机对这些组件施加功率并执行初始化。 这样的初始化可以包括重新获取导频信道信号，如果接收机的定时信号在前一个非活动状态期间已偏移与发射机的定时信号不同步，则其可以同步其自身。

公开(公告)号：WO1998032262A2

公开(公告)日：1998-07-23

申请号：PCT/US1997023650

申请日：1997-12-19

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  TIEDEMANN, Edward, G., Jr. ,  CHEN, Tao ,  WHEATLEY, Charles, E., III

IPC: H04L12/00

CPC classification number: H04W36/0094 ,  H04W36/0061 ,  H04W36/0066 ,  H04W36/14 ,  H04W36/30 ,  Y02D70/00

Abstract: A method and apparatus for performing inter-system hard handoff between communication systems (S1, S2) or inter-frequency hard handoff within a CDMA communication system is disclosed. The purpose of this invention is to reduce the probability of dropped calls during intersystem hard handoff. In the event that a hard handoff attempt is unsuccessful, the mobile station (18) will return to the original system (S1) with information which the communication system of the present invention uses to assist in the performance of future handoff attempts. Alternatively, with no handoff attempt made, the mobile station (18) monitors the destination system (S2), then returns to the original system (S1) with information used to assist in subsequent handoff attempts. The information returned from monitoring a CDMA system consists of results of a search for one or more pilots given at offsets in a specific list provided to the mobile station (18) by the base station (B1-B5) or a set of offsets based upon a predetermined search algorithm.

Abstract translation: 公开了一种用于在CDMA通信系统内的通信系统（S1，S2）或频间硬切换之间执行系统间硬切换的方法和装置。 本发明的目的是减少在系统间硬切换期间掉话的可能性。 在硬切换尝试不成功的情况下，移动台（18）将利用本发明的通信系统用于协助未来切换尝试的执行的信息返回到原始系统（S1）。 或者，在没有切换尝试的情况下，移动台（18）监视目的地系统（S2），然后利用用于辅助随后的切换尝试的信息返回到原始系统（S1）。 从监视CDMA系统返回的信息包括搜索由基站（B1-B5）提供给移动台（18）的特定列表中的偏移处给出的一个或多个导频的结果或基于 预定的搜索算法。

公开(公告)号：WO1998031139A1

公开(公告)日：1998-07-16

申请号：PCT/US1997023653

申请日：1997-12-19

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  JOHN, Johnny, K. ,  LEUNG, Nikolai, K., N.

IPC: H04N01/327

CPC classification number: H04L1/1874 ,  H04L1/1657 ,  H04L1/1803 ,  H04L1/188 ,  H04L5/16 ,  H04N1/00281 ,  H04N1/32795 ,  H04N2201/0015 ,  H04N2201/0034

Abstract: In a half-duplex communication system in which additional delays in the communication channel may cause a message collision between a message and a response, a timer based collision prevention circuit (40) is utilized to prevent the message collision. The collision prevention circuit (40) determines if the message transmitted by a communication device will be repeated. If the message is to be repeated, the collision prevention circuit (40) sets a countdown collision timer (44) to a predetermined period of time shorter than the shortest repetition interval of the repeated message. A response is only sent to the communication device if the collision timer (44) has not expired. If the timer (44) expires, the collision prevention circuit (40) waits for the message to be retransmitted by the source device before sending the response to the communication device.

Abstract translation: 在其中通信信道中的附加延迟可能引起消息与响应之间的消息冲突的半双工通信系统中，使用基于定时器的防冲击电路（40）来防止消息冲突。 防撞电路（40）判断通信装置发送的消息是否重复。 如果要重复消息，则防撞电路（40）将倒计时冲突定时器（44）设置为比重复消息的最短重复间隔短的预定时间段。 如果碰撞定时器（44）尚未到期，则仅将响应发送到通信设备。 如果定时器（44）到期，则在将响应发送到通信设备之前，防止冲突电路（40）等待源设备重传该消息。

公开(公告)号：WO1998026580A1

公开(公告)日：1998-06-18

申请号：PCT/US1997022112

申请日：1997-12-05

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  JOHN, Johnny, K. ,  LEUNG, Nikolai, K., N.

IPC: H04N01/00

CPC classification number: H04N1/00095

Abstract: A novel and improved method and apparatus for providing an interface to a digital wireless telephone system compatible with standard analog wire line fax machines are described. To process a fax, a source interface (24a) waits until an interface to a destination fax machine (18b) has been established before establishing an interface to a source fax machine (18a). The source fax transmission rate must be less than or equal to the destination fax transmission rate and the data rate of the digital channel. To establish the source fax interface at the proper rate, the source interface (24a) first selects an initial data rate from a set of standard fax transmission rates. The source interface (24a) sends unacceptable rate (failure to train) messages to the source fax machine (18a) until the source fax transmission rate is less than or equal to the data channel rate and the destination fax transmission rate. During fax processing, the destination interface (24b) inserts non-printing data (fill bits) if the destination fax transmission rate is greater than the source fax transmission rate. Fill bits are also inserted to compensate for transmission delays.

Abstract translation: 描述了一种用于向与标准模拟有线线路传真机兼容的数字无线电话系统提供接口的新颖和改进的方法和装置。 为了处理传真，在建立与源传真机（18a）的接口之前，源接口（24a）等待到目的地传真机（18b）的接口已建立。 源传真传输速率必须小于或等于目标传真传输速率和数字频道的数据速率。 为了以适当的速率建立源传真接口，源接口（24a）首先从一组标准传真传输速率中选择初始数据速率。 源接口（24a）向源传真机（18a）发送不可接受的速率（无法训练）消息，直到源传真传输速率小于或等于数据信道速率和目的传真传输速率。 在传真处理期间，如果目的地传真传输速率大于源传真传输速率，则目的地接口（24b）插入非打印数据（填充位）。 还插入填充位以补偿传输延迟。

公开(公告)号：WO1998025323A1

公开(公告)日：1998-06-11

申请号：PCT/US1997021600

申请日：1997-11-25

Applicant: QUALCOMM INCORPORATED ,  MALDONADO, David

Inventor： QUALCOMM INCORPORATED

IPC: H01Q01/24

CPC classification number: H01Q1/246 ,  H01Q1/242 ,  H01Q1/32 ,  H03H2007/386 ,  H04B1/18 ,  H04B1/3833 ,  H04B1/3877 ,  H04B1/406

Abstract: A dual-band antenna coupler (100) for use in an adapter for portable radiotelephone (200). A plurality of curved bands of metal (204a-c) are positioned on a ground plane (102), with at least two of the plurality of curved bands (204a, 204b) of metal being electrically isolated from the ground plane (102) so as to couple radio frequency (RF) signals to and from the antenna (204) of the portable radiotelephone (200). The isolated curved bands (204a, 204b) of metal couple RF signals between the antenna (204) of the portable radiotelephone and first and second matching circuits (602, 604) designed to match the portable radiotelephone antenna (204) at each of the respective frequency bands. A selector switch (606) coupled to the output of the matching circuits (602, 604) selects the appropriate matching circuit output for connection to an external antenna (304). The adapter also includes at least one ground pin (206a-c) mounted on the ground plane (102). When the portable radiotelephone (200) is interfaced with the antenna coupler (100), the ground pin (206a-c) makes electrical contact with a ground reference connection on the portable radiotelephone (202a, 202b, 208).

Abstract translation: 一种用于便携式无线电话机（200）的适配器的双频带天线耦合器（100）。 金属多个弯曲带（204a-c）位于接地平面（102）上，金属的多个弯曲带（204a，204b）中的至少两个与接地平面（102）电隔离，因此 以将射频（RF）信号耦合到便携式无线电话机（200）的天线（204）和从便携式无线电话机（200）的天线（204）。 在便携式无线电话机的天线（204）与被设计成在便携式无线电话机的每个相应的设备上匹配便携式无线电话天线（204）的第一和第二匹配电路（602,604）之间的金属耦合RF信号的孤立的弯曲带（204a，204b） 频带。 耦合到匹配电路（602,604）的输出的选择器开关（606）选择用于连接到外部天线（304）的适当的匹配电路输出。 适配器还包括安装在接地平面（102）上的至少一个接地引脚（206a-c）。 当便携式无线电话机（200）与天线耦合器（100）接口时，接地引脚（206a-c）与便携式无线电话机（202a，202b，208）上的接地参考连接进行电接触。

公开(公告)号：WO1998023044A2

公开(公告)日：1998-05-28

申请号：PCT/US1997020751

申请日：1997-11-13

Applicant: QUALCOMM INCORPORATED ,  SAINTS, Keith, W. ,  CHEN, Tao

Inventor： QUALCOMM INCORPORATED

IPC: H04B07/00

CPC classification number: H04W52/223 ,  H04W52/08 ,  H04W52/12 ,  H04W52/20 ,  H04W52/221

Abstract: The present invention provides a method and apparatus for providing improved quality or power control by recognizing the delays inherent in a closed-loop communication system. The mobile station (12) or receiver properly adjusts its forward link quality or power level thresholds or measurements with which it compares incoming frames or portions thereof to reflect the level it anticipates receiving (after the delay). For example, the mobile station (12) can recognize that at a given measurement time, two outstanding messages have not been executed by the transmitter (where each message indicates a corresponding increase of 1 dB). As a result, the mobile station (12) can adjust its measurement threshold down by 2 dB to more closely correspond to future power adjustments. If the currently received frame or portion thereof is still below the readjusted threshold, then the mobile station (12) sends out a new message to request a further increase in the forward link channel.

Abstract translation: 本发明提供一种通过识别闭环通信系统中固有的延迟来提供改进的质量或功率控制的方法和装置。 移动台（12）或接收机适当地调整其前向链路质量或功率电平阈值或与之相比较的输入帧或其部分的度量，以反映其预期接收的电平（在延迟之后）。 例如，移动站（12）可以识别在给定的测量时间，两个未完成的消息未被发射机执行（其中每个消息指示相应的增加1dB）。 结果，移动台（12）可以将其测量阈值下调2dB，以更接近未来的功率调整。 如果当前接收到的帧或其部分仍然低于重新调整的阈值，则移动台（12）发出新消息以请求进一步增加前向链路信道。

公开(公告)号：WO1998019481A2

公开(公告)日：1998-05-07

申请号：PCT/US1997019677

申请日：1997-10-27

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  ZEHAVI, Ephraim

IPC: H04Q07/22

CPC classification number: H04W28/22 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0072 ,  H04W24/00 ,  H04W28/18 ,  H04W72/0473 ,  H04W72/08 ,  H04W84/042 ,  Y02D70/00

Abstract: A method and apparatus for transmitting digital data in a cellular environment. Adjacent cells of the cellular system (1 and 2A-2F) are prevented from simultaneously transmitting data. Because the noise from transmission of adjacent cells is a primary source of interference, the transmission rate of power limited base stations (1-3) can be dramatically increased when the noise from adjacent cells is eliminated. The transmissions to each subscriber station (6) are made at a fixed transmission power level. However, the data rate of transmitted signals differs from one subscriber station (6) to another depending the path loss differences. In a first exemplary embodiment, the data rate of transmissions to a subscriber station (6) is determined by selecting an encoding rate for the transmitted signal while holding the symbol rate constant. In a second exemplary embodiment, the data rate of transmission to a subscriber station (6) is determined by selecting a modulation format for the transmitted signal which directly changes the symbol rate of transmission to a subscriber station (6).

Abstract translation: 一种在蜂窝环境中发送数字数据的方法和装置。 防止蜂窝系统（1和2A-2F）的相邻小区同时发送数据。 由于来自相邻小区的传输的噪声是主要的干扰源，当消除来自相邻小区的噪声时，功率受限基站（1-3）的传输速率可以显着增加。 到每个用户站（6）的传输是以固定的传输功率级别进行的。 然而，根据路径损耗差异，发送信号的数据速率与一个用户站（6）不同。 在第一示例性实施例中，通过在保持符号率恒定的同时选择发送信号的编码率来确定向订户站（6）的传输的数据速率。 在第二示例性实施例中，通过为发送信号选择调制格式来确定向订户站（6）的传输的数据速率，该调制格式直接改变向订户站（6）发送的符号速率。