公开(公告)号：US5528666A

公开(公告)日：1996-06-18

申请号：US269594

申请日：1994-07-01

申请人： David L. Weigand ,  Ralph D. Smallwood ,  Matthew W. Taylor

发明人： David L. Weigand ,  Ralph D. Smallwood ,  Matthew W. Taylor

IPC分类号： H04Q7/38 ,  H04M1/725 ,  H04M3/533 ,  H04M9/08 ,  H04Q7/30

CPC分类号： H04M3/533 ,  H04M1/725 ,  H04M9/08 ,  H04M1/6505

摘要： A personal phone expansion system (10) includes a personal base station (12) and a plurality of portable units (18). The personal base (12) is connected to a phone line (16) and provides routing and switching between the phone line (16), the portable units (18), a full duplex speaker phone (24), and a voice messaging system (26). The voice messaging system (26), which is contained within the personal base station (12) provides full voice mail functions. The personal base station (12) communicates with the portable units (18) by radio signals through a wireless interface (32). The portable units (18) can be used as standard cellular telephones when outside the range of the personal base station (12).

摘要翻译： 个人电话扩展系统（10）包括个人基站（12）和多个便携式单元（18）。 个人基座（12）连接到电话线（16），并且在电话线（16），便携式单元（18），全双工扬声器电话（24）和语音消息系统（24）之间提供路由和切换 26）。 包含在个人基站（12）内的语音消息系统（26）提供完整的语音邮件功能。 个人基站（12）通过无线接口（32）通过无线电信号与便携式单元（18）进行通信。 当个人基站（12）的范围之外时，便携式单元（18）可以用作标准蜂窝电话。

公开(公告)号：US5528593A

公开(公告)日：1996-06-18

申请号：US316168

申请日：1994-09-30

申请人： Sean English ,  Andrew P. DeJaco

发明人： Sean English ,  Andrew P. DeJaco

IPC分类号： H04B7/005 ,  H04W52/26 ,  H04W52/36 ,  H04Q7/30

CPC分类号： H04W52/267 ,  H04W24/00 ,  H04W28/06 ,  H04W28/22 ,  H04W52/36 ,  Y02B60/50

摘要： A method and apparatus for controlling transmission power in a variable rate communication system is disclosed. The method disclosed provides for a closed loop power control method. A first remote station controls the transmission power of a second remote station by transmitting a rate dependent power control signal to the second remote communication station. Since only the second communication knows its transmission rate a priori, it must determine its course of action in accordance with both the received power control signal and the knowledge of its transmission rate. In the present invention, the power control system reduces the amount of overhead required by restricting the possible rate transition of the variable rate communication system. The power control system further increases its efficiency by allocating the power control bits top various rate hypotheses in accordance with the probability of the rate hypothesis and the perceptual impact of power control for frames of data transmitted at the hypothetical rate.

摘要翻译： 公开了一种用于控制可变速率通信系统中的发射功率的方法和装置。 所公开的方法提供了一种闭环功率控制方法。 第一远程站通过向第二远程通信站发送与速率相关的功率控制信号来控制第二远程站的发射功率。 由于只有第二通信先验地知道其传输速率，所以它必须根据接收到的功率控制信号和其传输速率的知识确定其行动过程。 在本发明中，功率控制系统通过限制可变速率通信系统的可能的速率转换来减少所需的开销量。 功率控制系统通过根据速率假设的概率和以假设速率传输的数据帧的功率控制的感知影响来分配功率控制比特来提高各种速率假设来进一步提高其效率。

公开(公告)号：US5515374A

公开(公告)日：1996-05-07

申请号：US414457

申请日：1995-03-31

申请人： Frederick G. Atkinson

发明人： Frederick G. Atkinson

IPC分类号： H04Q7/38 ,  H04J3/16 ,  H04Q7/22 ,  H04Q7/30

CPC分类号： H04J3/1682

摘要： A method (300) and apparatus (200) provide for determining when a digital packet data signal and a voice signal are being concomitantly transmitted on a voice channel of a communication system. A sample of the transmitted signal (110) is compared (310) to a pre-transmitted sample of the digital packet data signal (108). In response to the comparison, a digital packet data transceiver hops (314-320) from the first voice channel to a different voice channel for transmitting the digital packet data signal when voice signals are present.

摘要翻译： 方法（300）和装置（200）提供用于确定数字分组数据信号和语音信号何时在通信系统的语音信道上同时发送。 将发送信号（110）的采样与数字分组数据信号（108）的预先发送的采样进行比较（310）。 响应于比较，当语音信号存在时，数字分组数据收发器从第一语音信道跳到（314-320）到不同的话音信道，用于发送数字分组数据信号。

公开(公告)号：US5499387A

公开(公告)日：1996-03-12

申请号：US247457

申请日：1994-05-23

申请人： William R. G. Chambert

发明人： William R. G. Chambert

IPC分类号： H04W36/08 ,  H04W36/12 ,  H04W36/30 ,  H04Q7/30

CPC分类号： H04W36/0083 ,  H04W36/30

摘要： The invention relates to a method in connection with handoff in a mobile radio communication system comprising at least one mobile station and a set of base stations surrounding the mobile station, each of the base stations including at least one traffic channel. Measured information that is significant for handoff-decisions and that before handoff of the mobile station from a first traffic channel to a second traffic channel has been measured, stored and associated with the first traffic channel, is associated with the second traffic channel in connection with handoff.

摘要翻译： 本发明涉及一种与移动无线电通信系统中的切换有关的方法，该系统包括至少一个移动站和围绕该移动站的一组基站，每个基站包括至少一个业务信道。 已经测量，存储并与第一业务信道相关联的对切换决定和移动台从第一业务信道切换到第二业务信道之前的测量信息与第二业务信道相关联 不可触摸。

公开(公告)号：US5448761A

公开(公告)日：1995-09-05

申请号：US111459

申请日：1993-08-25

申请人： Akihisa Ushirokawa

发明人： Akihisa Ushirokawa

IPC分类号： H04B17/00 ,  H04W72/04 ,  H04W72/08 ,  H04W72/10 ,  H04W84/04 ,  H04Q7/30 ,  H04Q7/34

CPC分类号： H04W72/082 ,  H04B17/336 ,  H04B17/382 ,  H04W84/042 ,  Y02B60/50

摘要： On selecting as a selected channel at a base station in response to a channel assignment request one of transmission channels of a cellular mobile radio communication network when this channel is given a higher updated priority degree in accordance with an interference signal power received through this channel while such requests are not present and furthermore when a CIR of this channel is above a preselected CIR threshold level, the CIR threshold level is selected in dependency on the updated priority degrees given to the transmission channels. Preferably, the CIR threshold level is low and high if the updated priority degree of each channel is high and low at the base station, respectively.

摘要翻译： 在根据通过该信道接收的干扰信号功率给该信道给予较高更新优先级时，响应于蜂窝移动无线电通信网络的传输信道之一的信道分配请求，选择基站选择的信道， 这种请求不存在，此外当该信道的CIR高于预先选择的CIR阈值电平时，根据给予传输信道的更新的优先级来选择CIR阈值电平。 优选地，如果基站的每个信道的更新的优先级分别为高和低，则CIR阈值电平是低的和高的。

公开(公告)号：US5428668A

公开(公告)日：1995-06-27

申请号：US148828

申请日：1993-11-04

申请人： Paul W. Dent ,  Jacobus C. Haartsen

发明人： Paul W. Dent ,  Jacobus C. Haartsen

IPC分类号： H04J3/00 ,  H04B15/00 ,  H04J3/16 ,  H04L12/28 ,  H04L12/56 ,  H04W12/06 ,  H04W16/16 ,  H04W16/32 ,  H04W28/26 ,  H04W74/08 ,  H04W84/14 ,  H04Q7/22 ,  H04Q7/30

CPC分类号： H04W16/16 ,  H04W12/06 ,  H04W74/006 ,  H04W16/32 ,  H04W28/26 ,  H04W74/0833 ,  H04W84/045 ,  H04W84/14

摘要： Transceiver frequency and optionally power level are allocated to a radio personal communications system which includes a base station connected to a wire telephone network and a cellular terminal operating within a region of a wide area cellular network to minimize interference between communications over the wide area cellular network and communications between the base station and the cellular terminal. The same cellular terminal may thus be used to communicate over the lower cost wire network when within range of the base station and over the wide area cellular network otherwise. The frequency for communications between the cellular terminal and the base station are optionally assigned by the operator of the wide area cellular network so appropriate frequencies and power levels can be assigned for base stations, to minimize same channel interference with the wide area cellular network.

摘要翻译： 收发机频率和可选的功率电平被分配给无线电个人通信系统，该无线电个人通信系统包括连接到有线电话网络的基站和在广域蜂窝网络的区域内操作的蜂窝终端，以最小化在广域蜂窝网络上的通信之间的干扰 以及基站和蜂窝终端之间的通信。 因此，相同的蜂窝终端可以用于在基站的范围内以及广域蜂窝网络上通过较低成本的有线网络进行通信。 蜂窝终端和基站之间的通信频率可选地由广域蜂窝网络的运营商分配，从而可以为基站分配适当的频率和功率电平，以最小化与广域蜂窝网络的相同信道干扰。

公开(公告)号：US5412650A

公开(公告)日：1995-05-02

申请号：US114525

申请日：1993-08-31

申请人： Robert J. Davies

发明人： Robert J. Davies

IPC分类号： H04Q7/38 ,  H04J3/00 ,  H04J3/16 ,  H04Q7/30 ,  H04J3/22

CPC分类号： H04J3/1647

摘要： In a cordless communications system, such as DECT, data is transmitted to or from a data terminal in an assigned channel in each TDMA frame. In order to accommodate data terminals having lower data rates than the capacity of the channel, such a data terminal accumulates its data during several frames in a buffer store until the accumulated data corresponds to the channel capacity, and is then transmitted in the frame in which that occurs. In order to utilize such interruptions in transmission from a plurality of low rate data terminals, the system control terminal treats each successive sequence of a predetermined number of frames (FR0 to FR15) as a multiframe, and transmissions from low rate data terminals are assigned to multiplexed frames which minimize the number of unoccupied channels in each multiframe.

摘要翻译： 在诸如DECT的无绳通信系统中，在每个TDMA帧中，在分配的信道中向或从数据终端发送数据。 为了适应具有比信道容量低的数据速率的数据终端，这样的数据终端在缓冲存储器中的几个帧期间累积其数据，直到累积数据对应于信道容量，然后在其中发送 发生。 为了在多个低速率数据终端的传输中利用这种中断，系统控制终端将预定数量帧（FR0至FR15）的每个连续序列视为复帧，并且将来自低速率数据终端的传输分配给 多路复用帧，使每个复帧中未占用信道的数量最小化。

公开(公告)号：US5163159A

公开(公告)日：1992-11-10

申请号：US559775

申请日：1990-07-30

申请人： Randall W. Rich ,  Rashid M. Osman ,  Thomas J. Walczak ,  Stephen V. Cahill

发明人： Randall W. Rich ,  Rashid M. Osman ,  Thomas J. Walczak ,  Stephen V. Cahill

IPC分类号： H03J7/06 ,  H04B1/40 ,  H04L27/227 ,  H04Q7/22 ,  H04Q7/24 ,  H04Q7/26 ,  H04Q7/30 ,  H04Q7/36 ,  H04Q7/38

CPC分类号： H04B1/0032 ,  H03J7/065 ,  H04B1/0003 ,  H04B1/406 ,  H04L27/2272

摘要： A frequency control system for a dual-mode radiotelephone (152-238; 252-320) operative to receive either an FM signal or a DQPSK signal. In a first embodiment, when operative to receive the FM signal, the frequency of the reference oscillator (192) of the radiotelephone (152-222) is maintained in a fixed relation with the frequency of the FM signal. When operative to receive the DQPSK signal, the reference oscillator (192) is maintained in a fixed relation with the frequency of the DQPSK signal as determined by a digital signal processor (212). In a second embodiment, when operative to receive the FM signal, the frequency of an offset control oscillator (320) is maintained in a fixed relation with the frequency of the FM signal. When operative to receive the DQPSK signal, the reference oscillator (292) is maintained in a fixed relation with the frequency of the DQPSK signal as determined by a digital signal processor (312).

摘要翻译： 一种用于双模式无线电话（152-238; 252-320）的频率控制系统，其操作以接收FM信号或DQPSK信号。 在第一实施例中，当操作以接收FM信号时，无线电话（152-222）的参考振荡器（192）的频率与FM信号的频率保持固定关系。 当操作以接收DQPSK信号时，参考振荡器（192）与由数字信号处理器（212）确定的DQPSK信号的频率保持固定的关系。 在第二实施例中，当操作以接收FM信号时，偏移控制振荡器（320）的频率与FM信号的频率保持固定关系。 当操作以接收DQPSK信号时，参考振荡器（292）与由数字信号处理器（312）确定的DQPSK信号的频率保持固定的关系。

公开(公告)号：US5109390A

公开(公告)日：1992-04-28

申请号：US432552

申请日：1989-11-07

申请人： Klein S. Gilhousen ,  Roberto Padovani ,  Charles E. Wheatly, III

发明人： Klein S. Gilhousen ,  Roberto Padovani ,  Charles E. Wheatly, III

IPC分类号： H04B1/7115 ,  H04B1/712 ,  H04B7/08 ,  H04B7/26 ,  H04L1/06 ,  H04Q7/30

CPC分类号： H04B1/7115 ,  H04L1/06 ,  H04B1/712 ,  H04B2201/70701

摘要： A spread spectrum receiver subsystem for utilization in a CDMA cellular telephone having a searcher receiver for scanning the time domain so as to use the PN processing gain and time discrimination properties of spread spectrum coding to determine the location in the time domain and the received signal strength of multiple receptions of a pilot signal traveling upon one or more physical propagation paths to reception. The searcher receiver provides a control signal indicative of the received pilot signals of greatest strength and corresponding time relationship. A data receiver receives spread spectrum communication signals accompanying each received pilot signal and is responsive to the searcher control signal for acquiring and demodulating a spread spectrum communication signal, concomitant with the pilot signal of greatest signal strength, and thus providing a corresponding information bearing encoded output signal.

摘要翻译： 一种扩频接收机子系统，用于具有用于扫描时域的搜索器接收机的CDMA蜂窝电话中，以便利用扩频编码的PN处理增益和时间识别特性来确定时域中的位置和接收信号强度 在接收的一个或多个物理传播路径上行进的导频信号的多次接收。 搜索器接收器提供指示接收到的最大强度和相应时间关系的导频信号的控制信号。 数据接收器接收伴随每个接收到的导频信号的扩展频谱通信信号，并且响应于搜索器控制信号，用于采集和解调扩展频谱通信信号，同时伴随最大信号强度的导频信号，从而提供相应的带有编码输出的信息 信号。

公开(公告)号：US4882766A

公开(公告)日：1989-11-21

申请号：US89102

申请日：1987-08-25

申请人： Yoshihiko Akaiwa

发明人： Yoshihiko Akaiwa

IPC分类号： H04Q7/38 ,  H04M1/733 ,  H04Q7/20 ,  H04Q7/22 ,  H04Q7/24 ,  H04Q7/26 ,  H04Q7/28 ,  H04Q7/30

CPC分类号： H04M1/733

摘要： For use in a common service area of a plurality of radio base stations, each being preassigned with a radio channel and for transmitting a channel status signal indicative of whether the radio channel is idle or busy, a terminal station (14) comprises a monitoring circuit (37) for cyclically monitoring the channel status signals of the respective base stations to produce an internal signal when the radio channel is found idle for one of the base stations that has a highest priority for the terminal status. Responsive to the internal signal, a control circuit (29) inhibits the cyclic monitoring for other base station or stations. The priority is decided by a measuring circuit (27) for measuring field intensities of the respective channel status signals. When the base stations are three in number, operation of the monitoring circuit is inhibited for the channel status signal of a lowest-priority base station when both radio channels of two other base stations are idle.

摘要翻译： 为了用于多个无线电基站的公​​共服务区域，每个无线电基站预先分配无线电信道，并且用于发送指示无线电信道是空闲还是忙的信道状态信号，终端站（14）包括监视电路 （37），用于在对终端状态具有最高优先级的基站中的一个发现无线电信道空闲时，周期性地监视各个基站的信道状态信号以产生内部信号。 响应于内部信号，控制电路（29）禁止对其他基站或站的循环监视。 优先级由用于测量各个通道状态信号的场强的测量电路（27）决定。 当两个基站的两个无线电信道空闲时，当基站数量为三个时，对于最低优先级基站的信道状态信号，监视电路的操作被禁止。