公开(公告)号：WO01020832A1

公开(公告)日：2001-03-22

申请号：PCT/JP1999/004990

申请日：1999-09-14

IPC: H04B1/707 ,  H04J13/00

CPC classification number: H04B1/712 ,  H04B1/7115 ,  H04B2201/7071

Abstract: A CDMA receiver having a RAKE receiving function of subjecting a direct wave or a delayed wave arriving through each path constituting a multipath to a spectrum despreading processing, subjecting the despread spectrum signal to a synchronizing detection, synchronizing a detected signal of each path, and judging the received data based on the synthesized signal. The CDMA receiver includes (1) a path weighting unit for measuring the electric power of a delayed received wave arriving through its path to add a weight corresponding to the received electric power to the output signal if the received electric power is below a preset level (break point level), (2) a RAKE synthesizing a unit for synthesizing signal to be outputted from the path weighting unit, and (3) a data judging unit for judging the received data on the basis of the output signal of the synthesizing unit.

Abstract translation: 具有RAKE接收功能的CDMA接收机，其特征在于使直接波或延迟波通过构成多路径的每个路径到达频谱解扩处理，对解扩频谱信号进行同步检测，同步每个路径的检测信号，并判断 基于合成信号的接收数据。 CDMA接收机包括：（1）路径加权单元，用于测量通过其路径到达的延迟的接收波的电功率，以便如果所接收的电力低于预设电平，则将对应于所接收的功率的重量加到所述输出信号上 断点电平），（2）RAKE合成用于合成从路径加权单元输出的信号的单元，以及（3）数据判断单元，用于根据合成单元的输出信号来判断接收到的数据。

公开(公告)号：WO01008314A2

公开(公告)日：2001-02-01

申请号：PCT/BE2000/000086

申请日：2000-07-19

IPC: H04B1/28 ,  H04B1/707 ,  H04B

CPC classification number: H04B1/707 ,  H04B1/28 ,  H04B2201/7071

Abstract: The present invention is related to a communication device for W-CDMA signal transmission and reception, comprising: a W-CDMA transmitter comprising RAM and/or registers, a W-CDMA receiver comprising RAM and/or registers and signal acquisition means, being software reconfigurable, characterized in that it further comprises at least a digital circuit for phase unbalance precompensation. The present invention further relates to a method for operating a W-CDMA communication device of the present invention, characterised in that it comprises the following steps: configuring said device for a specific use, and transmitting and/or receiving and/or acquiring waveform signals.

Abstract translation: 本发明涉及一种用于W-CDMA信号发送和接收的通信设备，包括：包含RAM和/或寄存器的W-CDMA发射机，包括RAM和/或寄存器和信号获取装置的W-CDMA接收机，其为软件 可重新配置，其特征在于，它还包括至少一个用于相位不平衡预补偿的数字电路。 本发明还涉及一种用于操作本发明的W-CDMA通信设备的方法，其特征在于它包括以下步骤：将所述设备配置为特定用途，以及发送和/或接收和/或获取波形信号 。

公开(公告)号：WO00051376A1

公开(公告)日：2000-08-31

申请号：PCT/SE2000/000370

申请日：2000-02-25

IPC: H04B1/28 ,  H04B1/707 ,  H04W88/10 ,  H04Q7/30 ,  H04J13/00

CPC classification number: H04B1/0014 ,  H04B1/0003 ,  H04B1/0039 ,  H04B1/28 ,  H04B1/707 ,  H04B1/7115 ,  H04B2201/70705 ,  H04B2201/7071 ,  H04L7/0029 ,  H04W88/10

Abstract: The invention is concerned with a method and apparatus for receiving different signal format standards in a multistandards radio receiver system. Radio (RF) signals are received and downconverted to an intermediate frequency signal (IF). The intermediate frequency signal (IF) is sampled with a certain sampling rate and the sampled signal is digitized into a digital signal. At least two modulated channels are filtered out from the digital signal, the channels being modulated according to different radio communications signal format standards. The signals are then demodulated in demodulating units. The modulated channels are detected and when needed, resampled individually each for signal format standard and corresponding demodulated channels are delivered. The resampling can be carried out in a separate resampler before each radio receiver or, if the receiver is a CDMA receiver, with a rake receiver with resampling rake fingers. The invention is also concerned with a rake receiver to be used in the method and apparatus of the invention.

Abstract translation: 本发明涉及用于在多标准无线电接收机系统中接收不同信号格式标准的方法和装置。 无线电（RF）信号被接收并下变频到中频信号（IF）。 以一定的采样率对中频信号（IF）进行采样，采样信号被数字化为数字信号。 从数字信号中滤出至少两个调制信道，根据不同的无线电通信信号格式标准对信道进行调制。 然后在解调单元中解调信号。 调制的信道被检测，并且在需要时分别针对信号格式标准和对应的解调信道被单独采样。 在每个无线电接收机之前，或者如果接收机是CDMA接收机，则可以在单独的重采样器中进行重采样，其中具有对耙指进行重新采样的耙式接收机。 本发明还涉及在本发明的方法和装置中使用的耙式接收器。

公开(公告)号：WO1998026609A2

公开(公告)日：1998-06-18

申请号：PCT/US1997020270

申请日：1997-11-11

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  BUSS, John, M. ,  DWORKIN, James, D. ,  SMITH, Stephen, L.

IPC: H04Q00/00

CPC classification number: H04B1/707 ,  H04B1/7103 ,  H04B1/7115 ,  H04B2201/7071

Abstract: A programmable versatile digital signal processing system architecture (Fig. 5) allows the implementation of functions for transmitting and receiving a variety of narrow and wide-band communication signaling schemes. The flexibility of the architecture (Fig. 5) makes it possible to receive and transmit many different spectral communication signals in real time by implementing signal processing functions such as filtering, spreading, de-spreading, rake filtering, and equalization under the direction of program instructions (1300, 1400, 1500, 1600).

Abstract translation: 可编程多功能数字信号处理系统架构（图5）允许实现用于发送和接收各种窄带和宽带通信信令方案的功能。 架构的灵活性（图5）使得可以通过在程序的方向上实现诸如滤波，扩展，解扩，耙滤波和均衡之类的信号处理功能来实时地接收和发送许多不同的频谱通信信号 说明书（1300,1400,1500,1600）。

公开(公告)号：WO9702665A3

公开(公告)日：1997-02-20

申请号：PCT/US9611060

申请日：1996-06-27

Applicant: INTERDIGITAL TECH CORP

Inventor： LOMP GARY ,  OZLUTURK FATIH ,  KOWALSKI JOHN

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 ,  H03H17/06 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70754 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/711 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/2628 ,  H04B7/264 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04J13/00 ,  H04J13/004 ,  H04J13/0048 ,  H04J13/0077 ,  H04J13/10 ,  H04J13/107 ,  H04J13/12 ,  H04J13/16 ,  H04J2013/0037 ,  H04L1/0001 ,  H04L1/004 ,  H04L1/0042 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/0059 ,  H04L5/1446 ,  H04L25/0212 ,  H04L27/206 ,  H04L27/2332 ,  H04L2027/003 ,  H04L2027/0053 ,  H04N1/00912 ,  H04N1/3333 ,  H04N2201/3335 ,  H04W52/04 ,  H04W52/08 ,  H04W52/143 ,  H04W52/146 ,  H04W52/24 ,  H04W52/241 ,  H04W52/245 ,  H04W52/247 ,  H04W52/26 ,  H04W52/262 ,  H04W52/322 ,  H04W52/325 ,  H04W52/343 ,  H04W52/346 ,  H04W52/36 ,  H04W52/367 ,  H04W52/44 ,  H04W52/50 ,  H04W52/52 ,  H04W52/54 ,  H04W52/60 ,  Y02D10/14

Abstract: A multiple access, spread-spectrum communication system processes a plurality of information signals received by a Radio Carrier Station (RCS) over telecommunication lines for simultaneous transmission over a radio frequency (RF) channel as a code-division-multiplexed (CDM) signal to a group of Subscriber Units (SUs). The RCS receives a call request signal that corresponds to a telecommunication line information signal, and a user identification signal that identifies a user to receive the call. The RCS includes a plurality of Code Division Multiple Access (CDMA) modems, one of which provides a global pilot code signal. The modems provide message code signals synchronized to the global pilot signal. Each modem combines an information signal with a message code signal to provide a CDM processed signal. The RCS includes a system channel controller coupled to receive a remote call. An RF transmitter is connected to all of the modems to combine the CDM processed signals with the global pilot code signal to generate a CDM signal. The RF transmitter also modulates a carrier signal with the CDM signal and transmits the modulated carrier signal through an RF communication channel to the SUs. Each SU includes a CDMA modem which is also synchronized to the global pilot signal. The CDMA modem despreads the CDM signal and provides a despread information signal to the user. The system includes a closed loop power control system for maintaining a minimum system transmit power level for the RCS and the SUs, and system capacity management for maintaining a maximum number of active SUs for improved system performance.

Abstract translation: 多址，扩频通信系统通过电信线处理由无线电载波台（RCS）接收的多个信息信号，以便通过射频（RF）信道作为码分复用（CDM）信号同时传输， 一组用户单位（SU）。 RCS接收对应于电信线信息信号的呼叫请求信号，以及识别用户接收呼叫的用户识别信号。 RCS包括多个码分多址（CDMA）调制解调器，其中之一提供全局导频码信号。 调制解调器提供与全局导频信号同步的消息代码信号。 每个调制解调器将信息信号与消息代码信号组合以提供CDM处理的信号。 RCS包括耦合以接收远程呼叫的系统信道控制器。 RF发射器连接到所有调制解调器，以将CDM处理的信号与全局导频代码信号组合以产生CDM信号。 RF发射机还利用CDM信号调制载波信号，并通过RF通信信道将调制载波信号发送到SU。 每个SU包括也与全局导频信号同步的CDMA调制解调器。 CDMA调制解调器解扩CDM信号并向用户提供解扩信息信号。 该系统包括用于维持RCS和SU的最小系统发射功率水平的闭环功率控制系统，以及用于维持最大数量的主动SU以提高系统性能的系统容量管理。

公开(公告)号：WO1996038944A1

公开(公告)日：1996-12-05

申请号：PCT/US1996008500

申请日：1996-06-03

Applicant: DSC COMMUNICATIONS CORPORATION

Inventor： DSC COMMUNICATIONS CORPORATION ,  BHAGALIA, Shashikant

IPC: H04J13/04

CPC classification number: H04Q11/04 ,  G06F9/546 ,  H04B1/707 ,  H04B1/70735 ,  H04B1/7075 ,  H04B1/7077 ,  H04B1/70775 ,  H04B1/7085 ,  H04B2001/70706 ,  H04B2201/70702 ,  H04B2201/70706 ,  H04B2201/7071 ,  H04B2201/70711 ,  H04B2201/709709 ,  H04J3/0682 ,  H04J13/00 ,  H04L12/66 ,  H04L29/06 ,  H04L41/0226 ,  H04L41/0233 ,  H04L41/08 ,  H04L41/22 ,  H04L43/00 ,  H04L69/08 ,  H04L69/14 ,  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 ,  H04W8/205 ,  H04W52/04 ,  H04W52/08 ,  H04W52/52 ,  H04W84/14 ,  H04W88/021 ,  H04W92/08

Abstract: A CDMA signal processing circuit (300) includes a summer circuit (302) that receives a plurality of CDMA signals from a plurality of channels (304). The summer circuit (302) combines the plurality of CDMA signals according to a power magnitude value and power direction value associated with each CDMA signal. The summer circuit (302) generates a summed signal (306) that is applied to a clipping circuit (308). The clipping circuit (308) removes a portion of the summed signal (306) outside a desired threshold range and generates a clipped signal (310) therefrom. Digital to analog processing circuits (312 and 314) convert the clipped signal (310) into a half width encoded format. Digital to analog processing circuits (312 and 314) transform the half width encoded clipped signal into analog I and Q signals, respectively. The analog I and Q signals are applied to corresponding filters (316 and 318) prior to transmission.

Abstract translation: CDMA信号处理电路（300）包括从多个信道（304）接收多个CDMA信号的加法电路（302）。 夏季电路（302）根据与每个CDMA信号相关联的功率幅度值和功率方向值组合多个CDMA信号。 夏季电路（302）产生施加到限幅电路（308）的求和信号（306）。 削波电路（308）将期望阈值范围之外的相加信号（306）的一部分去除并从其产生一个限幅信号（310）。 数字到模拟处理电路（312和314）将限幅信号（310）转换成半宽度编码格式。 数字到模拟处理电路（312和314）分别将半宽编码的剪辑信号变换为模拟I和Q信号。 在传输之前，模拟I和Q信号被应用于相应的滤波器（316和318）。

公开(公告)号：WO1996038941A1

公开(公告)日：1996-12-05

申请号：PCT/US1996008567

申请日：1996-06-03

Applicant: DSC COMMUNICATIONS CORPORATION

Inventor： DSC COMMUNICATIONS CORPORATION ,  COOPER, Ian, Leslie

IPC: H04J03/06

CPC classification number: H04Q11/04 ,  G06F8/71 ,  G06F9/546 ,  H04B1/707 ,  H04B1/70735 ,  H04B1/7077 ,  H04B1/70775 ,  H04B7/2656 ,  H04B2201/70706 ,  H04B2201/7071 ,  H04B2201/709709 ,  H04J13/00 ,  H04L9/12 ,  H04L9/3215 ,  H04L12/403 ,  H04L12/66 ,  H04L29/06 ,  H04L41/08 ,  H04L43/00 ,  H04L69/08 ,  H04L2209/34 ,  H04L2209/80 ,  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 ,  H04W52/52 ,  H04W76/10 ,  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：WO1996038929A1

公开(公告)日：1996-12-05

申请号：PCT/US1996008495

申请日：1996-06-03

Applicant: DSC COMMUNICATIONS CORPORATION

Inventor： DSC COMMUNICATIONS CORPORATION ,  YEUNG, Joemanne, Chi, Cheung ,  COOPER, Ian, Leslie

IPC: H04B01/707

CPC classification number: H04W56/00 ,  G06F9/546 ,  H04B1/707 ,  H04B1/70735 ,  H04B1/7075 ,  H04B1/7077 ,  H04B1/70775 ,  H04B1/7085 ,  H04B2001/70706 ,  H04B2201/70702 ,  H04B2201/70706 ,  H04B2201/7071 ,  H04B2201/70711 ,  H04B2201/709709 ,  H04J3/0682 ,  H04J13/00 ,  H04L9/065 ,  H04L9/12 ,  H04L12/66 ,  H04L29/06 ,  H04L41/0226 ,  H04L41/0233 ,  H04L41/0816 ,  H04L41/22 ,  H04L43/00 ,  H04L69/08 ,  H04L69/14 ,  H04L2209/80 ,  H04Q11/04 ,  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 ,  H04W52/04 ,  H04W52/08 ,  H04W52/24 ,  H04W52/52 ,  H04W84/14

Abstract: 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: 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：WO1996006490A1

公开(公告)日：1996-02-29

申请号：PCT/US1995010387

申请日：1995-08-15

Applicant: OMNIPOINT CORPORATION ,  SMITH, Douglas, G. ,  DIXON, Robert, C. ,  VANDERPOOL, Jeffrey, S.

Inventor： OMNIPOINT CORPORATION

IPC: H04K01/00

CPC classification number: H04B1/406 ,  H04B1/005 ,  H04B1/0057 ,  H04B1/006 ,  H04B1/10 ,  H04B1/69 ,  H04B1/707 ,  H04B7/2634 ,  H04B2201/7071 ,  H04J13/00 ,  H04L1/0001 ,  H04L1/0002 ,  H04L27/12 ,  H04W88/06

Abstract: A technique for spread-spectrum communication (figs. 1, 3, 12 and 14) which uses more than one mode and more than one frequency band. Selectable modes include narrowband mode (113) and spread-spectrum mode (111), 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 deestablishment of communication with a private access network. A multi-band transmitter (fig. 12) comprises a single frequency synthesizer and a frequency source (606) (e.g., a local oscillator), coupled to a selectable band pass filter (619, 620). A multi-band receiver (fig. 14) capable of monitoring one or more frequency bands comprises bank of bandpass filters (714, 715) and a demodulator comprising a single frequency synthesizer and a frequency source (721).

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（图1，图3，图12和图14）。 可选模式包括窄带模式（113）和扩频模式（111），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变化或其他控制触发（例如建立或解除与专用接入网的通信）之后改变。 多频带发射器（图12）包括耦合到可选择带通滤波器（619,620）的单个频率合成器和频率源（606）（例如本地振荡器）。 能够监测一个或多个频带的多频带接收机（图14）包括一组带通滤波器（714,715）和包括单个频率合成器和频率源（721）的解调器。

公开(公告)号：US09888518B2

公开(公告)日：2018-02-06

申请号：US15233836

申请日：2016-08-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jong-Man Park

IPC: G01R31/08 ,  H04W76/04 ,  H04W76/06 ,  H04W72/04 ,  H04W48/08 ,  H04W88/12 ,  H04W52/02

CPC classification number: H04W76/27 ,  H04B2201/7071 ,  H04W48/08 ,  H04W52/0216 ,  H04W72/04 ,  H04W76/38 ,  H04W88/12 ,  Y02B70/30 ,  Y02D70/00 ,  Y02D70/1224 ,  Y02D70/1242

Abstract: In a WCDMA mobile communication system, when the amount of packet traffic transmitted to or received from a UE decreases during a predetermined time in a CELL_DCH state in which a WCDMA packet data connection has been established, the UE transitions to a CELL_FACH state by a radio network controller (RNC). Thereafter, it is determined if there is no transmitted or received packet traffic during a certain time in the CELL_FACH state (which is an RRC state in which an RRC connection has been connected, and the dedicated physical channel has been released). When it is determined that there is no transmitted or received packet traffic during the certain time, the UE requests a network to release the RRC connection by utilizing a Signaling Connection Release Indication (SCRI) message. The invention enables a UE to check a packet transmission or reception flow, and to directly transmit the SCRI message to the network.