公开(公告)号：US5918160A

公开(公告)日：1999-06-29

申请号：US656604

申请日：1996-05-31

Applicant: Martin Lysejko ,  Richard M. Lamkin ,  Jonathan F. Nethercott ,  Guy A. Cooper

Inventor： Martin Lysejko ,  Richard M. Lamkin ,  Jonathan F. Nethercott ,  Guy A. Cooper

IPC: H04B1/707 ,  H04B7/005 ,  H04J3/06 ,  H04J11/00 ,  H04J13/00 ,  H04L9/32 ,  H04L12/24 ,  H04L12/26 ,  H04L12/28 ,  H04L12/403 ,  H04L12/56 ,  H04L12/66 ,  H04L29/06 ,  H04Q11/04 ,  H04W12/06 ,  H04W24/00 ,  H04W24/08 ,  H04W52/08 ,  H04W52/52 ,  H04W88/02 ,  H04Q7/32 ,  H04Q7/34

CPC classification number: H04W88/021 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/7077 ,  H04B1/7085 ,  H04J13/00 ,  H04J3/0682 ,  H04L12/26 ,  H04L12/2825 ,  H04L12/2836 ,  H04L12/403 ,  H04L12/66 ,  H04L41/0226 ,  H04L41/0233 ,  H04L41/22 ,  H04L43/00 ,  H04L69/14 ,  H04L9/12 ,  H04L9/3226 ,  H04Q11/04 ,  H04W24/00 ,  H04W24/08 ,  H04W52/52 ,  H04B1/70735 ,  H04B1/70775 ,  H04B2001/70706 ,  H04B2201/70702 ,  H04B2201/70706 ,  H04B2201/7071 ,  H04B2201/70711 ,  H04B2201/709709 ,  H04J11/00 ,  H04J13/004 ,  H04L2012/2841 ,  H04L2012/2845 ,  H04L2209/34 ,  H04L2209/80 ,  H04L69/08 ,  H04Q2213/1305 ,  H04Q2213/13093 ,  H04Q2213/13098 ,  H04Q2213/13109 ,  H04Q2213/1319 ,  H04Q2213/13196 ,  H04Q2213/13199 ,  H04Q2213/13202 ,  H04Q2213/13204 ,  H04Q2213/13216 ,  H04Q2213/13292 ,  H04Q2213/13296 ,  H04Q2213/13298 ,  H04Q2213/13299 ,  H04Q2213/13335 ,  H04Q2213/13376 ,  H04W52/08 ,  H04W88/02

Abstract: A subscriber station of a wireless telecommunications system includes a transmitter/receiver (24) for wireless communication with a central station and for processing signals for transmission and/or received signals. The transmitter/receiver (24) is connected via a link (408) to a supply unit (30) for connection to one or more telephone lines for user telecommunications equipment. The link (408) carries telephone call data for one or more telephone lines and subscriber station control data in accordance with an internal protocol. The internal protocol control data comprises operational status parameters of the subscriber station. The provision of internal protocol control data including operation status parameters on a link between the transmitter/receiver and the supply unit thus provides a point of access for monitoring the operational status of the subscriber station.

Abstract translation: 无线电信系统的用户站包括用于与中心站进行无线通信并用于处理发送和/或接收信号的信号的发射机/接收机（24）。 发送器/接收器（24）经由链路（408）连接到供应单元（30），用于连接到用于电信设备的一个或多个电话线路。 链路（408）根据内部协议携带用于一个或多个电话线路和用户台控制数据的电话呼叫数据。 内部协议控制数据包括用户站的操作状态参数。 因此，在发送器/接收器和供电单元之间的链路上提供包括操作状态参数的内部协议控制数据，从而提供用于监视用户台的操作状态的接入点。

公开(公告)号：US5915216A

公开(公告)日：1999-06-22

申请号：US558665

申请日：1995-11-16

Applicant: Martin Lysejko

Inventor： Martin Lysejko

IPC: G06F9/46 ,  H04B1/707 ,  H04B7/005 ,  H04B7/26 ,  H04J3/06 ,  H04J11/00 ,  H04J13/00 ,  H04L9/32 ,  H04L12/24 ,  H04L12/26 ,  H04L12/28 ,  H04L12/403 ,  H04L12/56 ,  H04L12/66 ,  H04L29/06 ,  H04Q11/04 ,  H04W52/04 ,  H04W52/08 ,  H04W52/52 ,  H04W84/14 ,  H04Q7/20

CPC classification number: H04Q11/04 ,  G06F9/546 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/7077 ,  H04B1/7085 ,  H04J13/00 ,  H04J3/0682 ,  H04L12/26 ,  H04L12/403 ,  H04L12/66 ,  H04L41/0816 ,  H04L43/00 ,  H04W52/04 ,  H04W52/52 ,  H04B1/70735 ,  H04B1/70775 ,  H04B2001/70706 ,  H04B2201/70702 ,  H04B2201/70706 ,  H04B2201/7071 ,  H04B2201/70711 ,  H04B2201/709709 ,  H04L69/08 ,  H04Q2213/1305 ,  H04Q2213/13093 ,  H04Q2213/13098 ,  H04Q2213/13109 ,  H04Q2213/1319 ,  H04Q2213/13196 ,  H04Q2213/13199 ,  H04Q2213/13202 ,  H04Q2213/13204 ,  H04Q2213/13216 ,  H04Q2213/13292 ,  H04Q2213/13296 ,  H04Q2213/13298 ,  H04Q2213/13299 ,  H04Q2213/13335 ,  H04Q2213/13376 ,  H04W52/08 ,  H04W84/14

Abstract: A wireless telecommunications system (1) includes a central terminal (10) for transmitting and receiving radio frequency signals to and from a subscriber terminal (20). A downlink communication path is established from a transmitter (200) of the central terminal (10) to a receiver (202) of the subscriber terminal (20). A downlink signal (212) is transmitted from the transmitter (200) to the receiver (202) during setup and operation of the wireless telecommunications system (1). The wireless telecommunications system (1) operates in one of three operating modes. In an acquisition mode during establishment of the downlink communication path, the downlink signal (212) is transmitted at a high power level and a low transmit rate with the receiver (202) operating at the low transmit rate. In a standby mode after establishment of the downlink communication path, the downlink signal (212) is transmitted at a low power level and a low transmit rate with the receiver (202) operating at the low transmit rate. In a traffic mode upon a request for wireless communication transmission, the downlink signal (212) is transmitted at a high power level and a high transmit rate with the receiver (202) adjusting to operate at the high transmit rate. Upon completion of the wireless communication transmission, the wireless telecommunications system (1) returns to the standby mode and the receiver (202) adjusts to operate at the low transmit rate.

Abstract translation: 无线电信系统（1）包括用于向和从用户终端（20）发送和接收射频信号的中央终端（10）。 从中心终端（10）的发射机（200）到用户终端（20）的接收机（202）建立下行链路通信路径。 在无线电信系统（1）的建立和操作期间，从发射机（200）向接收机（202）发送下行链路信号（212）。 无线电信系统（1）以三种操作模式之一工作。 在建立下行链路通信路径的采集模式中，下行链路信号（212）以较低的发送速率以较高的功率电平和低的发送速率被发送。 在建立下行链路通信路径之后的待机模式中，下行链路信号（212）以低功率电平和低发射速率被发送，而接收机（202）以低传输速率工作。 在要求无线通信传输的业务模式中，下行链路信号（212）以高功率电平和高发射速率发射，接收机（202）调整为以高传输速率工作。 在无线通信传输完成时，无线电信系统（1）返回到待机模式，并且接收机（202）调整为以低传输速率工作。

公开(公告)号：US5912919A

公开(公告)日：1999-06-15

申请号：US669771

申请日：1996-06-27

Applicant: Gary Lomp ,  Fatih Ozluturk

Inventor： Gary Lomp ,  Fatih Ozluturk

IPC: H03K3/84 ,  G06F13/374 ,  H03H17/02 ,  H03H17/06 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/7077 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/711 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/005 ,  H04B7/216 ,  H04B7/26 ,  H04B15/00 ,  H04B17/00 ,  H04J11/00 ,  H04J13/00 ,  H04J13/10 ,  H04J13/12 ,  H04J13/16 ,  H04K1/00 ,  H04L1/00 ,  H04L5/14 ,  H04L7/00 ,  H04L7/033 ,  H04L25/02 ,  H04L27/00 ,  H04L27/20 ,  H04L27/233 ,  H04L27/30 ,  H04N1/333 ,  H04W52/04 ,  H04W52/14 ,  H04W52/24

CPC classification number: H04B7/2637 ,  G06F13/374 ,  H03H17/0226 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70754 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/711 ,  H04B7/2628 ,  H04J13/00 ,  H04J13/10 ,  H04J13/107 ,  H04L1/004 ,  H04L1/0042 ,  H04L1/0059 ,  H04L25/0212 ,  H04L27/206 ,  H04L27/2332 ,  H04L5/1446 ,  H04N1/00912 ,  H04N1/3333 ,  H04W52/04 ,  H04W52/08 ,  H04W52/143 ,  H04W52/24 ,  H04W52/241 ,  H04W52/245 ,  H04W52/262 ,  H04W52/322 ,  H04W52/325 ,  H04W52/343 ,  H04W52/346 ,  H04W52/36 ,  H04W52/50 ,  H04W52/52 ,  H04W52/54 ,  H03H17/06 ,  H04B1/7077 ,  H04B1/7115 ,  H04B1/712 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04B7/264 ,  H04J13/004 ,  H04J13/0048 ,  H04J13/0077 ,  H04J13/12 ,  H04J13/16 ,  H04J2013/0037 ,  H04L1/0001 ,  H04L1/0047 ,  H04L1/0054 ,  H04L2027/003 ,  H04L2027/0053 ,  H04N2201/3335 ,  H04W52/146 ,  H04W52/247 ,  H04W52/26 ,  H04W52/367 ,  H04W52/44 ,  H04W52/60 ,  Y02B60/1228 ,  Y02B60/50

Abstract: A multiple access, spread-spectrum communication tracking system includes apparatus which tracks a centroid of a transmitted code-division multiplexed (CDM) code sequence that is contaminated with multipath distortion. The apparatus includes an analog to digital converter which digitally samples the spread-spectrum channel signal to produce a sequence of sample values. The sample values are divided into a set of even-numbered sample values which correspond to early multipath signal components and the set of odd sample number values which correspond to the multipath signal components. The centroid tracking receiver generates a plurality of local code sequences, each of which is a code phase-shifted version of the transmitted code sequence. The centroid tracking receiver correlates each of the locally generated code sequences with the odd and even numbered sample values, respectively, to produce a group of early despread multipath signals and a group of late despread multipath signals. The group of early despread multipath signals are weighted and processed to produce an early tracking value, and the group of late despread multipath signals are weighted and processed to produce a late tracking value. The difference between the early tracking value and the late tracking value is calculated to produce an error signal value. Finally, the centroid tracking system adjusts the code phase of each of the locally generated code sequences to minimize the error signal value.

公开(公告)号：US5841768A

公开(公告)日：1998-11-24

申请号：US670162

申请日：1996-06-27

Applicant: Faith M. Ozluturk ,  Gary R. Lomp

Inventor： Faith M. Ozluturk ,  Gary R. Lomp

IPC: H04B1/707 ,  H04B1/7075 ,  H04B1/7077 ,  H04B1/708 ,  H04B7/005 ,  H04B7/216 ,  H04B7/26 ,  H04W52/36 ,  H04W52/50 ,  H04W52/60

CPC classification number: H04W52/36 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/708 ,  H04B7/2628 ,  H04W52/50 ,  H04W52/60 ,  H04B1/7077 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/7071 ,  H04W52/367

Abstract: A system and method of controlling transmission power during the establishment of a channel in a CDMA communication system utilize the transmission of a short code from a subscriber unit to a base station during initial power ramp-up. The short code is a sequence for detection by the base station which has a much shorter period than a conventional spreading code. The ramp-up starts from a power level that is guaranteed to be lower than the required power level for detection by the base station. The subscriber unit quickly increases transmission power while repeatedly transmitting the short code until the signal is detected by the base station. Once the base station detects the short code, it sends an indication to the subscriber unit to cease increasing transmission power. The use of short codes limits power overshoot and interference to other subscriber stations and permits the base station to quickly synchronize to the spreading code used by the subscriber unit.

公开(公告)号：US5809093A

公开(公告)日：1998-09-15

申请号：US558444

申请日：1995-11-16

Applicant: Ian L. Cooper

Inventor： Ian L. Cooper

IPC: G06F9/44 ,  G06F9/46 ,  H04B1/707 ,  H04B7/005 ,  H04B7/26 ,  H04J3/00 ,  H04J3/06 ,  H04J11/00 ,  H04J13/00 ,  H04L7/08 ,  H04L9/32 ,  H04L12/24 ,  H04L12/26 ,  H04L12/28 ,  H04L12/403 ,  H04L12/56 ,  H04L12/66 ,  H04L29/06 ,  H04Q11/04 ,  H04W12/06 ,  H04W52/00 ,  H04W52/08 ,  H04W52/52 ,  H04W76/02 ,  H04W84/14 ,  H04L7/00

CPC classification number: H04Q11/04 ,  G06F8/71 ,  G06F9/546 ,  H04B1/707 ,  H04B1/7077 ,  H04B7/2656 ,  H04J13/00 ,  H04L12/26 ,  H04L12/403 ,  H04L12/66 ,  H04L29/06 ,  H04L43/00 ,  H04L9/12 ,  H04L9/3215 ,  H04W52/52 ,  H04W76/02 ,  H04B1/70735 ,  H04B1/70775 ,  H04B2201/70706 ,  H04B2201/7071 ,  H04B2201/709709 ,  H04L2209/34 ,  H04L2209/80 ,  H04L41/08 ,  H04L69/08 ,  H04Q2213/1305 ,  H04Q2213/13093 ,  H04Q2213/13098 ,  H04Q2213/13109 ,  H04Q2213/1319 ,  H04Q2213/13196 ,  H04Q2213/13199 ,  H04Q2213/13202 ,  H04Q2213/13204 ,  H04Q2213/13216 ,  H04Q2213/13292 ,  H04Q2213/13296 ,  H04Q2213/13298 ,  H04Q2213/13299 ,  H04Q2213/13335 ,  H04Q2213/13376 ,  H04W52/08 ,  H04W84/14

Abstract: A wireless telecommunications system (1) includes a central terminal (10) for transmitting and receiving radio frequency signals to and from a subscriber terminal (20). A downlink communication path is established from a transmitter (200) of the central terminal (10) to a receiver (202) of the subscriber terminal (20). A downlink signal (212) is transmitted from the transmitter (200) to the receiver (202) during setup and operation of the wireless telecommunications system (1) carrying information partitioned into a plurality of frames. The downlink signal (212) includes an overhead channel (224) having a frame alignment signal (232) for each frame of information. The receiver (202) monitors the downlink signal (212) to identify the frame alignment signal (232). The downlink communication path is established when the receiver (202) identifies two successive frame alignment signals (232).

Abstract translation: 无线电信系统（1）包括用于向和从用户终端（20）发送和接收射频信号的中央终端（10）。 从中心终端（10）的发射机（200）到用户终端（20）的接收机（202）建立下行链路通信路径。 在承载分割成多个帧的信息的无线电信系统（1）的建立和操作期间，下行链路信号（212）从发射机（200）发送到接收机（202）。 下行链路信号（212）包括对于每个信息帧具有帧对准信号（232）的开销信道（224）。 接收器（202）监视下行链路信号（212）以识别帧对准信号（232）。 当接收机（202）识别两个连续的帧对准信号（232）时，建立下行链路通信路径。

公开(公告)号：US5796776A

公开(公告)日：1998-08-18

申请号：US669769

申请日：1996-06-27

Applicant: Gary Lomp ,  Fatih Ozluturk ,  Avi Silverberg

Inventor： Gary Lomp ,  Fatih Ozluturk ,  Avi Silverberg

IPC: H03K3/84 ,  G06F13/374 ,  H03H17/02 ,  H03H17/06 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/7077 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/711 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/005 ,  H04B7/216 ,  H04B7/26 ,  H04B15/00 ,  H04B17/00 ,  H04J11/00 ,  H04J13/00 ,  H04J13/10 ,  H04J13/12 ,  H04J13/16 ,  H04K1/00 ,  H04L1/00 ,  H04L5/14 ,  H04L7/00 ,  H04L7/033 ,  H04L25/02 ,  H04L27/00 ,  H04L27/20 ,  H04L27/233 ,  H04L27/30 ,  H04N1/333 ,  H04W52/04 ,  H04W52/14 ,  H04W52/24 ,  G06F1/02

CPC classification number: H04B7/2637 ,  G06F13/374 ,  H03H17/0226 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70754 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/711 ,  H04B7/2628 ,  H04J13/00 ,  H04J13/10 ,  H04J13/107 ,  H04L1/004 ,  H04L1/0042 ,  H04L1/0059 ,  H04L25/0212 ,  H04L27/206 ,  H04L27/2332 ,  H04L5/1446 ,  H04N1/00912 ,  H04N1/3333 ,  H04W52/04 ,  H04W52/08 ,  H04W52/143 ,  H04W52/24 ,  H04W52/241 ,  H04W52/245 ,  H04W52/262 ,  H04W52/322 ,  H04W52/325 ,  H04W52/343 ,  H04W52/346 ,  H04W52/36 ,  H04W52/50 ,  H04W52/52 ,  H04W52/54 ,  H03H17/06 ,  H04B1/7077 ,  H04B1/7115 ,  H04B1/712 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04B7/264 ,  H04J13/004 ,  H04J13/0048 ,  H04J13/0077 ,  H04J13/12 ,  H04J13/16 ,  H04J2013/0037 ,  H04L1/0001 ,  H04L1/0047 ,  H04L1/0054 ,  H04L2027/003 ,  H04L2027/0053 ,  H04N2201/3335 ,  H04W52/146 ,  H04W52/247 ,  H04W52/26 ,  H04W52/367 ,  H04W52/44 ,  H04W52/60 ,  Y02B60/1228 ,  Y02B60/50

Abstract: A CDMA modem includes a modem transmitter having: a code generator which provides an associated pilot code signal and which generates a plurality of message code signals; a spreading circuit which produces a spread-spectrum message signal by combining each of the information signals with a respective one of the message code signals; and a global pilot code generator that provides a global pilot code signal to which the message code signals are synchronized. The CDMA modem also includes a modem receiver having an associated pilot code generator and a group of associated pilot code correlators for correlating code-phase delayed versions of the associated pilot signal with a receive CDM signal to produce a despread associated pilot signal. The code phase of the associated pilot signal is changed responsive to an acquisition signal value until a pilot signal is received. The associated pilot code tracking logic adjusts the associated pilot code signal in phase responsive to the acquisition signal so that the signal power level of the despread associated pilot code signal is maximized. Finally, the CDMA modem receiver includes a group of message signal acquisition circuits, each including a plurality of receive message signal correlators which correlate respective local received message code signal to the CDM signal to produce a respective despread received message signal.

Abstract translation: CDMA调制解调器包括：调制解调器发送器，具有：代码生成器，其提供相关联的导频代码信号并产生多个消息代码信号; 扩展电路，其通过将每个信息信号与相应的一个消息代码信号组合来产生扩频消息信号; 以及提供消息代码信号同步的全局导频码信号的全局导频码发生器。 CDMA调制解调器还包括具有相关联的导频码发生器和一组相关联的导频码相关器的调制解调器接收机，用于将相关导频信号的码相位延迟版本与接收CDM信号相关，以产生解扩相关导频信号。 相应的导频信号的码相位响应于采集信号值而改变，直到接收到导频信号。 相关联的导频代码跟踪逻辑响应于采集信号相位调整相关联的导频代码信号，使得解扩相关导频码信号的信号功率电平最大化。 最后，CDMA调制解调器接收机包括一组消息信号采集电路，每组包括多个接收消息信号相关器，它将相应的本地接收到的消息码信号与CDM信号相关联，以产生相应的解扩接收消息信号。

公开(公告)号：US5796772A

公开(公告)日：1998-08-18

申请号：US485987

申请日：1995-06-07

Applicant: Douglas G. Smith ,  Robert C. Dixon ,  Jeffrey S. Vanderpool

Inventor： Douglas G. Smith ,  Robert C. Dixon ,  Jeffrey S. Vanderpool

IPC: G10L19/00 ,  H04B1/40 ,  H04B1/69 ,  H04B1/707 ,  H04B7/005 ,  H04B7/26 ,  H04J11/00 ,  H04J13/02 ,  H04L1/00 ,  H04L12/56 ,  H04L27/12 ,  H04W36/18 ,  H04W52/00 ,  H04W52/04 ,  H04W52/08 ,  H04W52/36 ,  H04W52/40 ,  H04W88/06 ,  H04K1/00 ,  H04L5/16 ,  H04L27/00

CPC classification number: H04W52/367 ,  G10L19/012 ,  H04B1/005 ,  H04B1/0057 ,  H04B1/006 ,  H04B1/406 ,  H04B1/69 ,  H04B1/707 ,  H04B7/2618 ,  H04B7/2634 ,  H04J13/00 ,  H04L27/12 ,  H04W52/04 ,  H04W52/08 ,  H04W52/362 ,  H04W52/40 ,  H04B2201/7071 ,  H04L1/0002 ,  H04W36/18 ,  H04W52/38 ,  H04W88/06

Abstract: A technique for spread-spectrum communication which uses more than one mode and more than one frequency band. Selectable modes include narrowband mode and spread-spectrum mode, or cellular mode and microcellular mode. Selectable frequency bands include both licensed and unlicensed frequency bands, particularly frequency bands including the 902-928 MHz, 1850-1990 MHz, and 2.4-2.4835 GHz frequency bands. Spread-spectrum communication channels are 10 MHz or less in width. The frequency band onto which spread-spectrum signals are encoded may be changed upon a change in environment or other control trigger, such as establishment or de-establishment of communication with a private access network. A multi-band transmitter comprises a single frequency synthesizer and a frequency source (e.g., a local oscillator), coupled to a selectable band pass filter. A multi-band receiver capable of monitoring one or more frequency bands comprises bank of bandpass filters and a demodulator comprising a single frequency synthesizer and a frequency source.

Abstract translation: 一种使用多于一种模式和多于一个频带的扩频通信技术。 可选择的模式包括窄带模式和扩频模式，或蜂窝模式和微蜂窝模式。 可选择的频段包括许可和非授权频段，特别是包括902-928 MHz，1850-1990 MHz和2.4-2.4835 GHz频段的频段。 扩频通信信道宽度为10 MHz或更小。 对扩频信号进行编码的频带可以在环境或其他控制触发的变化（诸如与专用接入网的建立或取消建立通信）之后改变。 多频带发射机包括耦合到可选择带通滤波器的单个频率合成器和频率源（例如本地振荡器）。 能够监视一个或多个频带的多频带接收机包括一组带通滤波器和一个包括单个频率合成器和频率源的解调器。

公开(公告)号：US5696766A

公开(公告)日：1997-12-09

申请号：US558445

申请日：1995-11-16

Applicant: Joemmane Chi Cheung Yeung ,  Ian L. Cooper

Inventor： Joemmane Chi Cheung Yeung ,  Ian L. Cooper

IPC: G06F9/46 ,  H04B1/707 ,  H04B7/005 ,  H04J3/06 ,  H04J11/00 ,  H04J13/00 ,  H04L9/32 ,  H04L12/24 ,  H04L12/26 ,  H04L12/28 ,  H04L12/403 ,  H04L12/56 ,  H04L12/66 ,  H04L29/06 ,  H04Q11/04 ,  H04W52/00 ,  H04W52/04 ,  H04W52/08 ,  H04W52/24 ,  H04W52/52 ,  H04W56/00 ,  H04W84/14

CPC classification number: H04W56/00 ,  G06F9/546 ,  H04B1/707 ,  H04B1/7077 ,  H04B1/7085 ,  H04J13/00 ,  H04J3/0682 ,  H04L12/26 ,  H04L12/66 ,  H04L29/06 ,  H04L41/0226 ,  H04L41/0233 ,  H04L41/0816 ,  H04L41/22 ,  H04L43/00 ,  H04L69/14 ,  H04L9/065 ,  H04L9/12 ,  H04Q11/04 ,  H04W52/04 ,  H04W52/24 ,  H04W52/52 ,  H04B1/70735 ,  H04B1/7075 ,  H04B1/70775 ,  H04B2001/70706 ,  H04B2201/70702 ,  H04B2201/70706 ,  H04B2201/7071 ,  H04B2201/70711 ,  H04B2201/709709 ,  H04L2209/80 ,  H04L69/08 ,  H04Q2213/1305 ,  H04Q2213/13093 ,  H04Q2213/13098 ,  H04Q2213/13109 ,  H04Q2213/1319 ,  H04Q2213/13196 ,  H04Q2213/13199 ,  H04Q2213/13202 ,  H04Q2213/13204 ,  H04Q2213/13216 ,  H04Q2213/13292 ,  H04Q2213/13296 ,  H04Q2213/13298 ,  H04Q2213/13299 ,  H04Q2213/13335 ,  H04Q2213/13376 ,  H04W52/08 ,  H04W84/14

Abstract: A wireless telecommunications system (1) includes a central terminal (10) for transmitting and receiving radio frequency signals to and from a subscriber terminal (20). A downlink communication path is established from a transmitter (200) of the central terminal (10) to a receiver (202) of the subscriber terminal (20). A downlink signal (212) is transmitted from the transmitter (200) to the receiver (202) during setup and operation of the wireless telecommunications system (1). The downlink signal (212) includes an overhead channel (224) having a code synchronization signal (234). The code synchronization signal (234) is capable of adjusting a phase of a transmitter (204) in the subscriber terminal (20). A receiver (206) in the central terminal (10) monitors an uplink signal (214) transmitted by the transmitter (204) in the subscriber terminal and provides changes to the code synchronization signal (234) such that the transmitter (204) is synchronized to the receiver (206). Synchronization of the transmitter (204) in the subscriber terminal (20) to the receiver (206) in the central terminal (10) facilitates establishment of an uplink communication path from the subscriber terminal (20) to the central terminal (10).

Abstract translation: 无线电信系统（1）包括用于向和从用户终端（20）发送和接收射频信号的中央终端（10）。 从中心终端（10）的发射机（200）到用户终端（20）的接收机（202）建立下行链路通信路径。 在无线电信系统（1）的建立和操作期间，从发射机（200）向接收机（202）发送下行链路信号（212）。 下行链路信号（212）包括具有码同步信号（234）的开销信道（224）。 代码同步信号（234）能够调整用户终端（20）中的发射机（204）的相位。 中央终端（10）中的接收机（206）监视由用户终端中的发射机（204）发送的上行链路信号（214），并提供对码同步信号（234）的改变，使得发射机（204）同步 到接收器（206）。 用户终端（20）中的发射机（204）与中心终端（10）中的接收机（206）的同步有助于建立从用户终端（20）到中心终端（10）的上行链路通信路径。

公开(公告)号：US09692539B2

公开(公告)日：2017-06-27

申请号：US13659633

申请日：2012-10-24

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Taesang Yoo ,  Yongbin Wei

IPC: H04L1/00 ,  H04J11/00 ,  H04B1/7103

CPC classification number: H04J11/0023 ,  H04B1/7103 ,  H04B2201/7071

Abstract: Incremental interference cancelation (IC) capability management and signaling is disclosed. A mobile device selects certain groups of its individual IC capabilities to deactivate in response to various operating conditions it is experiencing. The mobile device reports its currently active IC capability to a serving base station, which uses information to determine whether to modify any existing communication conditions with respect to the reporting mobile device. The base station detects and analyzes the current communication conditions with respect to the reporting mobile device in light of the mobile device's currently active IC capabilities. The base station may modify such conditions through actions such as signaling the mobile device to activate or deactivate certain other groups of IC capabilities. The base station can make other modifications such as changing the communication schedule for the mobile device, modifying the control loop for channel quality indicator (CQI) reporting, and the like.

公开(公告)号：US09479215B2

公开(公告)日：2016-10-25

申请号：US12016652

申请日：2008-01-18

Applicant: Carlo Luschi ,  Simon Walker ,  Steve Allpress ,  Philip Jones

Inventor： Carlo Luschi ,  Simon Walker ,  Steve Allpress ,  Philip Jones

IPC: H04B1/707 ,  H04L25/02 ,  H04L25/03

CPC classification number: H04B1/707 ,  H04B2201/7071 ,  H04L25/0212 ,  H04L25/03012

Abstract: A method of processing digital samples of a signal received at a receiver of a wireless communication system includes monitoring channel conditions and generating a channel indicator including at least one channel parameter by performing at least one of: estimating a channel mobility parameter and comparing it with a threshold; estimating a channel parameter of the energy of the channel outside a predefined temporal window, and comparing it with a threshold; estimating a channel temporal duration parameter and establishing if it meets predetermined criteria; estimating a channel-zero location parameter and establishing if it meets predetermined criteria; estimating a received-signal signal-to-disturbance power ratio, and comparing it to a threshold; estimating an estimated-channel-response signal-to-disturbance power ratio; estimating the degree of non-stationarity of the disturbance at the receiver input; and selecting one of a plurality of processing routines for processing the digital samples based on said channel indicator. Related receivers are also described.

Abstract translation: 一种处理在无线通信系统的接收机处接收的信号的数字样本的方法包括监视信道状况并通过执行以下中的至少一个来生成包括至少一个信道参数的信道指示符：估计信道移动性参数并将其与 阈; 估计在预定时间窗口之外的信道的能量的信道参数，并将其与阈值进行比较; 估计信道时间持续时间参数并确定它是否符合预定标准; 估计信道零位置参数并确定它是否符合预定标准; 估计接收信号信号与干扰功率比，并将其与阈值进行比较; 估计信道响应信号与干扰功率比; 估计接收机输入干扰的非平稳度; 以及基于所述信道指示符选择用于处理数字样本的多个处理例程之一。 还描述了相关接收机。