公开(公告)号：WO1997050194A2

公开(公告)日：1997-12-31

申请号：PCT/US1997010754

申请日：1997-06-23

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： INTERDIGITAL TECHNOLOGY CORPORATION ,  OZLUTURK, Fatih, M. ,  LOMP, Gary, R. ,  HAIM, John, W.

IPC: H04B07/005

CPC classification number: H04W52/60 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/708 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04W52/36 ,  H04W52/362 ,  H04W52/367 ,  H04W52/50

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.

Abstract translation: 在CDMA通信系统建立信道期间控制发射功率的系统和方法利用在初始功率提升期间从用户单元向基站传输短码。 短码是用于基站检测的序列，其具有比常规扩展码短得多的周期。 斜坡上升从功率电平开始，该功率电平保证低于基站检测所需的功率电平。 用户单元快速增加发射功率，同时重复发送短码直到基站检测到信号。 一旦基站检测到短码，它就向用户单元发送指示，以停止增加发射功率。 使用短码限制了对其他用户站的功率过冲和干扰，并允许基站快速同步到用户单元使用的扩展码。

公开(公告)号：WO1996021295A1

公开(公告)日：1996-07-11

申请号：PCT/US1995016905

申请日：1995-12-22

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： INTERDIGITAL TECHNOLOGY CORPORATION ,  LOMP, Gary, R.

IPC: H04K01/00

CPC classification number: H04W52/04 ,  H03G3/3042 ,  H03G3/3047 ,  H04B1/69 ,  H04B1/707 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/7115 ,  H04B1/712 ,  H04B2201/70707 ,  H04J13/00 ,  H04J13/0003 ,  H04J13/10 ,  H04J13/16 ,  H04W52/22 ,  H04W52/221 ,  H04W52/225 ,  H04W52/228 ,  H04W52/36 ,  H04W52/362 ,  H04W52/367 ,  H04W52/52 ,  H04W52/54

Abstract: A spread-spectrum system and method for providing high-capacity communications through multipath compensation, for automatically and adaptively controlling a mobile user's spread-spectrum transmitter power level when operating in a cellular communications network, and for providing variable or adjustable signal bandwidth capabilities in a spread-spectrum transmitter. Multipath compensation is accomplished using a plurality of filters (121-126), a plurality of multipliers (111-116), and a plurality of weighting devices (131-136), coupled through a first adder (120) and a second adder (130) to a decision device (150). The adaptive power control device of the present invention includes a base station having an AGC amplifier (228), despreader (231), comparator (239), power amplifier (237), delta modulator (235), multiplexer (234), combiner (236) and power measurement device (233). The adaptive power control device also includes a mobile station having a despreader (334), demultiplexer (339), demodulator (340), decision device (345), accumulator (346), step size algorithm device (344), variable gain device (341) and transmitter (342). The variable bandwidth device includes a chipping sequence generator (161), impulse generator (165), product device (164) and filter (166).

Abstract translation: 一种用于通过多路径补偿提供大容量通信的扩频系统和方法，用于在蜂窝通信网络中操作时自动和自适应地控制移动用户的扩频发射机功率电平，以及用于在 扩频发射机。 多路径补偿使用多个滤波器（121-126），多个乘法器（111-116）和多个加权装置（131-136），通过第一加法器（120）和第二加法器（ 130）连接到决策设备（150）。 本发明的自适应功率控制装置包括具有AGC放大器（228），解扩器（231），比较器（239），功率放大器（237），增量调制器（235），多路复用器（234），组合器 236）和功率测量装置（233）。 自适应功率控制装置还包括具有解扩器（334），解复用器（339），解调器（340），判定装置（345），累加器（346），步长算法装置（344），可变增益装置 341）和发射机（342）。 可变带宽设备包括切片序列发生器（161），脉冲发生器（165），产品设备（164）和滤波器（166）。

公开(公告)号：EP0801856B1

公开(公告)日：2002-07-10

申请号：EP95943981.1

申请日：1995-12-22

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： LOMP, Gary, R.

IPC: H04B1/707 ,  H04B7/005 ,  H04B7/26

CPC classification number: H04W52/04 ,  H03G3/3042 ,  H03G3/3047 ,  H04B1/69 ,  H04B1/707 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/7115 ,  H04B1/712 ,  H04B2201/70707 ,  H04J13/00 ,  H04J13/0003 ,  H04J13/10 ,  H04J13/16 ,  H04W52/22 ,  H04W52/221 ,  H04W52/225 ,  H04W52/228 ,  H04W52/36 ,  H04W52/362 ,  H04W52/367 ,  H04W52/52 ,  H04W52/54

Abstract: A spread-spectrum system and method for providing high-capacity communications through multipath compensation, for automatically and adaptively controlling a mobile user's spread-spectrum transmitter power level when operating in a cellular communications network, and for providing variable or adjustable signal bandwidth capabilities in a spread-spectrum transmitter. Multipath compensation is accomplished using a plurality of filters (121-126), a plurality of multipliers (111-116), and a plurality of weighting devices (131-136), coupled through a first adder (120) and a second adder (130) to a decision device (150). The adaptive power control device of the present invention includes a base station having an AGC amplifier (228), despreader (231), comparator (239), power amplifier (237), delta modulator (235), multiplexer (234), combiner (236) and power measurement device (233). The adaptive power control device also includes a mobile station having a despreader (334), demultiplexer (339), demodulator (340), decision device (345), accumulator (346), step size algorithm device (344), variable gain device (341) and transmitter (342). The variable bandwidth device includes a chipping sequence generator (161), impulse generator (165), product device (164) and filter (166).

Abstract translation: 的扩频系统和方法，用于通过多径补偿提供高容量通信，用于自动地和自适应地控制一个移动用户的扩频发射机功率电平。当在蜂窝通信网络中操作，并且用于提供在一个可变的或可调的信号带宽能力 扩频发射机。 多径补偿使用的过滤器121-126复数，乘法器111-116的多个，并且配重装置131-136的多元完成的，通过第一加法器120和第二加法器130，以判定装置150的自适应耦合 本发明的功率控制装置包括：具有在AGC放大器228的基站，解扩器231，比较器239，功率放大器237，Δ调制器235，复用器234，组合器236和功率测量装置233因此，该自适应功率控制装置包括一个 具有移动台的解扩器334，解复用器339，解调器340，判决设备345，累加器346，步长算法装置344，可变增益装置341和发送器342的可变带宽装置包括码片序列信号发生器161，脉冲发生器165，产品 装置164和过滤器166

公开(公告)号：EP0908021B1

公开(公告)日：2002-06-05

申请号：EP97930175.1

申请日：1997-06-23

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： OZLUTURK, Fatih, M. ,  LOMP, Gary, R. ,  HAIM, John, W.

IPC: H04B7/005 ,  H04B7/26 ,  H04B1/707

CPC classification number: H04W52/60 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/708 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04W52/36 ,  H04W52/362 ,  H04W52/367 ,  H04W52/50

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.

Abstract translation: 该方法涉及在在初始预定功率电平发送从订户单元的周期性信号。 功率电平以预定的斜坡上升速度增加。 所述周期性信号在基站被检测到时用于检测的足够的功率来实现。 来自基站的信号是反式mitted这证实了周期信号已被检测到。 确认信号在用户单元处被接收。 预定的功率电平斜坡上升当收到确认信号速率停止。 初始预定功率电平是比由基站检测所需的功率电平低。 的信号的功率电平以预定的所有的第二速率小于所述第一速率增加。

公开(公告)号：EP0970571A1

公开(公告)日：2000-01-12

申请号：EP98923728.4

申请日：1998-05-26

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： LOMP, Gary, R. ,  KAZERKEVICH, Leonid ,  POLAN, Jeffrey, S. ,  MESECHER, David, K.

IPC: H04B7/08

CPC classification number: H04B7/0894 ,  H04J13/00 ,  H04W52/52

Abstract: The present invention relates to communications for communication systems. The communication includes an antenna system which is coupled to an RF receiver/transmitter which in turn is coupled to other signal processing equipment including at least one modem for processing individual CDMA communications. Preferably the antenna system includes multiple antennas and delay units and outputs a combined signal having a known distortion imparted by the antenna system. The combined signal is in turn processed by the modem. The modem compensates for the known distortion in a manner which provides improved signal gain. The improved signal gain permits a reduction in transmit power and, accordingly, increased capacity of the CDMA system. Where the antenna system is to be remotely located from the signal processing equipment, separate units for the RF receiver/transmitter and the other signal processing equipment are provided so that the RF receiver/transmitter may also be remotely located along with the antenna system. Preferably a connecting cable of at least 20 feet is provided which supplies RF signals and DC power to the RF receiver/transmitter from the other signal processing equipment.

公开(公告)号：EP0908021A2

公开(公告)日：1999-04-14

申请号：EP97930175.0

申请日：1997-06-23

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： OZLUTURK, Fatih, M. ,  LOMP, Gary, R. ,  HAIM, John, W.

IPC: H04B1 ,  H04B7 ,  H04L7 ,  H04W52

CPC classification number: H04W52/60 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/708 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04W52/36 ,  H04W52/362 ,  H04W52/367 ,  H04W52/50

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.

Abstract translation: 该方法涉及在在初始预定功率电平发送从订户单元的周期性信号。 功率电平以预定的斜坡上升速度增加。 所述周期性信号在基站被检测到时用于检测的足够的功率来实现。 来自基站的信号是反式mitted这证实了周期信号已被检测到。 确认信号在用户单元处被接收。 预定的功率电平斜坡上升当收到确认信号速率停止。 初始预定功率电平是比由基站检测所需的功率电平低。 的信号的功率电平以预定的所有的第二速率小于所述第一速率增加。

公开(公告)号：EP0801856A1

公开(公告)日：1997-10-22

申请号：EP95943981.0

申请日：1995-12-22

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： LOMP, Gary, R.

IPC: H04B ,  G06F17 ,  H03G3 ,  H04B1 ,  H04B7 ,  H04J13 ,  H04W52 ,  H04W84

CPC classification number: H04W52/04 ,  H03G3/3042 ,  H03G3/3047 ,  H04B1/69 ,  H04B1/707 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/7115 ,  H04B1/712 ,  H04B2201/70707 ,  H04J13/00 ,  H04J13/0003 ,  H04J13/10 ,  H04J13/16 ,  H04W52/22 ,  H04W52/221 ,  H04W52/225 ,  H04W52/228 ,  H04W52/36 ,  H04W52/362 ,  H04W52/367 ,  H04W52/52 ,  H04W52/54

Abstract: A spread-spectrum system and method for providing high-capacity communications through multipath compensation, for automatically and adaptively controlling a mobile user's spread-spectrum transmitter power level when operating in a cellular communications network, and for providing variable or adjustable signal bandwidth capabilities in a spread-spectrum transmitter. Multipath compensation is accomplished using a plurality of filters (121-126), a plurality of multipliers (111-116), and a plurality of weighting devices (131-136), coupled through a first adder (120) and a second adder (130) to a decision device (150). The adaptive power control device of the present invention includes a base station having an AGC amplifier (228), despreader (231), comparator (239), power amplifier (237), delta modulator (235), multiplexer (234), combiner (236) and power measurement device (233). The adaptive power control device also includes a mobile station having a despreader (334), demultiplexer (339), demodulator (340), decision device (345), accumulator (346), step size algorithm device (344), variable gain device (341) and transmitter (342). The variable bandwidth device includes a chipping sequence generator (161), impulse generator (165), product device (164) and filter (166).

Abstract translation: 一种用于通过多路径补偿提供高容量通信的扩频系统和方法，用于在蜂窝通信网络中工作时自动和自适应地控制移动用户的扩频发射机功率电平，并且用于在一个蜂窝通信网络中提供可变或可调节的信号带宽能力 扩频发射机。 使用通过第一加法器（120）和第二加法器（120）耦合的多个滤波器（121-126），多个乘法器（111-116）和多个加权装置（131-136） 130）到决策装置（150）。 （228），解扩器（231），比较器 236）和功率测量装置（233）。 自适应功率控制设备还包括具有解扩器（334），解复用器（339），解调器（340），判定设备（345），累加器（346），步长算法设备（344），可变增益设备 341）和发射器（342）。 可变带宽设备包括码片序列生成器（161），脉冲生成器（165），产品设备（164）和滤波器（166）。