公开(公告)号：JP2003224492A

公开(公告)日：2003-08-08

申请号：JP2003013627

申请日：2003-01-22

Applicant: INTERDIGITAL TECH CORP

Inventor： LOMP GARY ,  OZLUTURK FATIH ,  KOWALSKI JOHN ,  REGIS ROBERT ,  LUDDY MICHAEL ,  MARRA ALEXANDER ,  JACQUES ALEXANDER ,  SILVERBERG AVI

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

Abstract: PROBLEM TO BE SOLVED: To provide a subscriber station unit for a large capacity multiple access spread spectrum communication system, which forms a plurality of concurrent user bearer channels through a prescribed radio frequency, to enable dynamic allocation of a bearer channel speed, while preventing multipath interference. SOLUTION: The subscriber station unit for the multiple access spread spectrum communication system includes a receiving means, a subscriber station unit controller, and a modem-processing means provided with a global pilot code acquiring means, a plurality of message code generators, a global pilot code tracking means, a phase-adjusting means and a plurality of message- acquiring means. COPYRIGHT: (C)2003,JPO

公开(公告)号：WO9702714A3

公开(公告)日：1997-02-13

申请号：PCT/US9611063

申请日：1996-06-27

Applicant: INTERDIGITAL TECH CORP

Inventor： LOMP GARY ,  OZLUTURK FATIH ,  KOWALSKI JOHN ,  REGIS ROBERT ,  LUDDY MICHAEL ,  MARRA ALEXANDER ,  JACQUES ALEXANDER

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 ,  H04Q7/30

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路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）信号同时发送到 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，以及标识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发射机连接到所有调制解调器以将CDM处理的信号与全局导频码信号组合以产生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：WO0209313A3

公开(公告)日：2002-06-20

申请号：PCT/US0122882

申请日：2001-07-20

Applicant: INTERDIGITAL TECH CORP

Inventor： NOLAN JAMES ,  KAZAKEVICH LEONID ,  TYRA FRYDERYK ,  REGIS ROBERT ,  SCHREIDER FRED

IPC: H04B17/00

CPC classification number: H04B17/0087

Abstract: A communication transmission emulator digitally emulates a plurality of signal impairments created by the transmission components and communication medium in a typical communication system. A variety of linear and non-linear distortion characteristics are impressed on a baseband signal between transmit and receive modems to effect thorough testing and optimization of modem performance without requiring transmission frequency components and/or communication channel. The communication transmission emulator comprises transmission channel transmit modules, receive modules and communication media modules. Transmit and receive modules accepting or outputting analogue or digital signals. The transmission emulator is configurable to allow a simulation of a single channel communication; a simulation of a full duplex communication; a simulation of a common base station receiver with multiple users transmitting and a simulation of a base station transmitter with multiple users receiving, all configurations with or without the communication media emulator module. The communication media modules simulate multipath signal components and distortions for the chosen medium.

Abstract translation: 通信传输仿真器在典型的通信系统中对由传输组件和通信介质创建的多个信号损伤进行数字仿真。 在发射和接收调制解调器之间的基带信号上施加各种线性和非线性失真特性，以实现调制解调器性能的全面测试和优化，而不需要传输频率分量和/或通信信道。 通信传输仿真器包括传输信道发射模块，接收模块和通信媒体模块。 发送和接收模块接收或输出模拟或数字信号。 传输仿真器可配置为允许单信道通信的仿真; 全双工通信的仿真; 具有多个用户发送的公共基站接收机的模拟和具有多个用户接收的基站发射机的模拟，所有具有或不具有通信媒体仿真器模块的配置。 通信媒体模块模拟所选介质的多路径信号分量和失真。

公开(公告)号：JP2003264481A

公开(公告)日：2003-09-19

申请号：JP2003013976

申请日：2003-01-22

Applicant: INTERDIGITAL TECH CORP

Inventor： LOMP GARY ,  OZLUTURK FATIH ,  KOWALSKI JOHN ,  REGIS ROBERT ,  LUDDY MICHAEL ,  MARRA ALEXANDER ,  JACQUES ALEXANDER ,  SILVERBERG AVI

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 ,  H04Q7/38

Abstract: PROBLEM TO BE SOLVED: To provide a high-speed capture device by which the spread code phase of a spread spectrum communication system is rapidly synchronized with a transmission code signal provided with a transmission I code signal including a first spread code sequence and a transmission Q code signal includ ing a second spread code sequence. SOLUTION: The high-speed capture device includes: a receiving means for receiving the transmission code signal, and separating the transmission I code signal from the transmission Q code signal; a correlation means provided with an I code signal correlator and a Q code signal correlator; a local code sequence generator; and a controller which is connected to the I code signal correlator, the Q code signal correlator, and the local code sequence generator, so as to decide, achieve and keep a code sequence lock. COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2003249912A

公开(公告)日：2003-09-05

申请号：JP2003014009

申请日：2003-01-22

Applicant: INTERDIGITAL TECH CORP

Inventor： LOMP GARY ,  OZLUTURK FATIH ,  KOWALSKI JOHN ,  REGIS ROBERT ,  LUDDY MICHAEL ,  MARRA ALEXANDER ,  JACQUES ALEXANDER ,  SILVERBERG AVI

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 ,  H04Q7/38

Abstract: PROBLEM TO BE SOLVED: To provide a method for managing capacity in a spread spectrum communication system including a base station and a plurality of subscriber stations. SOLUTION: The base station includes the processes for: measuring the transmission power levels of a connection channel and a plurality of message channels; comparing the transmission power levels with a first prescribed power value to generate a power comparison result value; and setting a traffic connection value in the first prescribed value to interrupt the transmission of an allocated channel and the message channels of each of the subscriber stations when the transmission power level is consequently equal to or more than the prescribed power value. Each of the subscriber stations includes the processes for: allocating a transmission power level to measure a channel and a message channel; comparing the transmission power level with a second prescribed value; and displaying a maximum power state in the base station when one transmission power level is equal to or more than the second prescribed value. The base station further includes a process for interrupting the transmission of the allocated channel and message channel of each of the subscriber stations in response to the maximum power state. COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2003249875A

公开(公告)日：2003-09-05

申请号：JP2003014033

申请日：2003-01-22

Applicant: INTERDIGITAL TECH CORP

Inventor： LOMP GARY ,  OZLUTURK FATIH ,  KOWALSKI JOHN ,  REGIS ROBERT ,  LUDDY MICHAEL ,  MARRA ALEXANDER ,  JACQUES ALEXANDER ,  SILVERBERG AVI

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

Abstract: PROBLEM TO BE SOLVED: To provide a method of efficiently utilizing an ISDN radio link capacity of a spread spectrum communication system, including first and second spread spectrum transceivers. SOLUTION: The method comprises a process for delaying a digital data signal by a first spread spectrum transceiver to form a delayed digital data signal, a process for monitoring the digital data signal to detect a predetermined flag pattern, a process for transmitting the delayed digital data signal to a second spread spectrum transceiver as a spread spectrum signal, a process for interrupting transmission of the delayed digital data signal when the predetermined flag pattern exists, a process for detecting absence of the delayed digital data signal by the second spread spectrum transceiver, and a process for inserting the predetermined flag pattern into the transmitted digital data signal. COPYRIGHT: (C)2003,JPO

公开(公告)号：FI124383B

公开(公告)日：2014-08-15

申请号：FI20125079

申请日：2012-01-26

Applicant: INTERDIGITAL TECH CORP

Inventor： LOMP GARY ,  OZLUTURK FATIH ,  KOWALSKI JOHN ,  REGIS ROBERT ,  LUDDY MICHAEL ,  MARRA ALEXANDER ,  JACQUES ALEXANDER ,  SILVERBERG AVI

IPC: H03K3/84 ,  H04B1/707 ,  G06F13/374 ,  H03H17/02 ,  H03H17/06 ,  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 ,  H04W72/04

公开(公告)号：FI122550B

公开(公告)日：2012-03-15

申请号：FI20080292

申请日：2008-04-17

Applicant: INTERDIGITAL TECH CORP

Inventor： LOMP GARY ,  OZLUTURK FATIH ,  KOWALSKI JOHN ,  REGIS ROBERT ,  LUDDY MICHAEL ,  MARRA ALEXANDER ,  JACQUES ALEXANDER ,  SILVERBERG AVI

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

Abstract: The invention provides a spread spectrum communication system for maintaining an initial transmit power level of a communication station during periods of inactivity. The system comprises a first station (501) and a second station (502), the initial transmit power level of which is maintained, wherein the first station generates an automatic power control signal by comparing a measured noise power level in a communication channel and an estimated system transmit power level and the second station occasionally transmits a spread spectrum signal whilst in an inactive state and receives the automatic power control signal to adjust an initial transmit power level thereof.

公开(公告)号：ES2261449T3

公开(公告)日：2006-11-16

申请号：ES01957205

申请日：2001-07-20

Applicant: INTERDIGITAL TECH CORP

Inventor： NOLAN JAMES ,  KAZAKEVICH LEONID ,  TYRA FRYDERYK ,  REGIS ROBERT ,  SCHREIDER FRED

IPC: H04B17/00

Abstract: Un emulador (31) para uso con equipos transmisor y receptor de comunicaciones en un sistema de comunicación para modelar una pluralidad de degradaciones de señal que se manifiestan en una señal de datos de comunicación entre la modulación en dicho equipo transmisor y la desmodulación en dicho equipo receptor; comprendiendo el emulador (31): una pluralidad de módulos transmisores programables (35) que emulan una pluralidad de degradaciones de señal que acontecen durante la modulación de medios de comunicación, teniendo cada módulo transmisor (35) una entrada de señal (I) para acoplamiento con un módem transmisor, una salida y un acoplamiento de bus de comunicación; una pluralidad de módulos receptores programables (37) que emulan una pluralidad de degradaciones de señal que acontecen durante la demodulación de medios de comunicación, teniendo cada módulo receptor citado (37) una entrada de señal, una salida (O) para acoplamiento con un módem receptor y un acoplamiento de bus de comunicación;un interfaz (65) de usuario que se comunica con un procesador (47) para definir una simulación de sistema comunicación acoplando mediante software un número requerido de dichos módulos transmisores (35) y receptores (37) según una disposición de simulación definida por un usuario que emplea dichas salidas de módulo transmisor y dichas entradas de módulo receptor; e instruyendo dicho procesador (47) a cada uno de dichos módulos requeridos (35, 37) a través de un bus de comunicación (53) para que use degradaciones de señal específicas de entre dicha pluralidad de degradaciones de señal respectivas para dicha disposición de simulación definida por el usuario.

公开(公告)号：DE60119121T2

公开(公告)日：2006-10-19

申请号：DE60119121

申请日：2001-07-20

Applicant: INTERDIGITAL TECH CORP

Inventor： NOLAN JAMES ,  KAZAKEVICH LEONID ,  TYRA FRYDERYK ,  REGIS ROBERT ,  SCHREIDER FRED

IPC: H04B17/00