公开(公告)号：US20030190925A1

公开(公告)日：2003-10-09

申请号：US10401217

申请日：2003-03-26

Applicant: InterDigital Technology Corporation

Inventor： Fatih M. Ozluturk ,  Gary R. Lomp

IPC: H04B007/00

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

Abstract: A base station for controlling transmission power during the establishment of a communication channel utilizes the reception of a short code 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 access code. The ramp-up starts from a power level that is lower than the required power level for detection by the base station. The power of the short code is quickly increased until the signal is detected by the base station. Once the base station detects the short code, it transmits an indication that the short code has been detected.

公开(公告)号：US20030185188A1

公开(公告)日：2003-10-02

申请号：US10328890

申请日：2002-12-23

Applicant: InterDigital Technology Corporation

Inventor： Prabhakar R. Chitrapu ,  Narayan Parappil Menon ,  Fatih M. Ozluturk ,  Shamim Akbar Rahman

IPC: H04Q007/24 ,  H04B007/216

CPC classification number: H04W88/005 ,  H04L12/5692 ,  H04L12/66 ,  H04L2012/6481 ,  H04W80/04 ,  H04W88/16 ,  H04W92/14

Abstract: The present invention provides for a Time Division DuplexnullRadio Local Area Network (TDD-RLAN) which includes a Radio Access Network Internet Protocol (RAN IP) gateway that enables connectivity to the public Internet. The system may serve as a stand-alone system or be incorporated into a UMTS used with conventional Core Network, particularly for tracking and implementing AAA functions in the Core Network.

Abstract translation: 本发明提供了一种时分双工无线局域网（TDD-RLAN），其包括能够连接到公共因特网的无线电接入网络因特网协议（RAN IP）网关。 该系统可以用作独立系统或被并入到与常规核心网一起使用的UMTS中，特别是用于跟踪和实现核心网络中的AAA功能。

公开(公告)号：US20030156629A1

公开(公告)日：2003-08-21

申请号：US10357869

申请日：2003-02-03

Applicant: InterDigital Technology Corporation

Inventor： Fatih M. Ozluturk ,  David K. Mesecher ,  Alexander M. Jacques

IPC: H04B001/707

CPC classification number: H04B1/7085 ,  H04B1/30 ,  H04B1/707 ,  H04B1/70755 ,  H04B1/7093 ,  H04B1/7115 ,  H04B2201/70701 ,  H04L25/0212 ,  H04L27/0014 ,  H04L2027/0067

Abstract: The present invention is a communication system, including a receiver and method for receiving one of a plurality of channels in a communication signal. An adaptive matched filter produces a filtered signal by using a weighting signal. A rake receiver produces a filter weighting signal using a pseudo-noise signal generator. A channel despreader despreads the filtered signal using the pseudo-noise signal generated to produce a despread channel signal of the selected channel. A pilot channel despreader despreads the filtered signal using a pseudo-noise signal generator to produce a despread pilot signal of the pilot channel. A hard decision processor receives the despread channel signal of the selected channel and produces a correction signal. A phase-locked loop utilizes at least the despread pilot signal and produces a phase correction signal which is applied to produce phase-corrected channel signals.

Abstract translation: 本发明是一种通信系统，包括用于在通信信号中接收多个信道中的一个的接收机和方法。 自适应匹配滤波器通过使用加权信号产生滤波信号。 瑞克接收机使用伪噪声信号发生器产生滤波器加权信号。 信道去扩展器使用所生成的伪噪声信号来对经滤波的信号进行解扩，以产生所选信道的解扩频道信号。 导频信道解扩器使用伪噪声信号发生器对经滤波的信号进行解扩，以产生导频信道的解扩导频信号。 硬决策处理器接收所选信道的解扩频道信号并产生校正信号。 锁相环至少使用解扩导频信号并产生相位校正信号，该信号被施加以产生相位校正的信道信号。

公开(公告)号：US20030035404A1

公开(公告)日：2003-02-20

申请号：US10266408

申请日：2002-10-08

Applicant: InterDigital Technology Corporation

Inventor： Fatih M. Ozluturk ,  Nadir Sezgin

IPC: H04B007/216

CPC classification number: H04B1/7103 ,  H04B1/7097 ,  H04B1/7107 ,  H04B1/71075 ,  H04B2201/70701

Abstract: A global pilot and unwanted traffic signal canceler for a spread spectrum communication system receiver that reduces their contributive noise effects. The present invention effectively cancels the global pilot and unwanted, active traffic signals prior to decoding a desired traffic signal at the receiver. The system and method decreases the bit error rate (BER) yielding an increased signal-to-noise ratio.

公开(公告)号：US20020191680A1

公开(公告)日：2002-12-19

申请号：US10066968

申请日：2002-02-04

Applicant: InterDigital Technology Corporation

Inventor： Fatih M. Ozluturk

IPC: H04K001/00

CPC classification number: H04J13/10 ,  H04J13/0022 ,  H04J13/102 ,  H04J2013/0037

Abstract: A reception method including generating complex four-phase pseudo-random sequences comprising: providing a register having a plurality of bits initially set to zero; combining a predetermined value with the plurality of bits within said register to produce a bit combination; replacing the contents of the register with the bit combination; and utilizing bits from at least one predetermined location within said shift register to generate the pseudo-random sequences.

Abstract translation: 一种接收方法，包括生成复合四相伪随机序列，包括：提供具有初始设置为零的多个比特的寄存器; 将预定值与所述寄存器内的多个比特组合以产生比特组合; 用位组合替换寄存器的内容; 以及利用来自所述移位寄存器内的至少一个预定位置的位产生伪随机序列。

公开(公告)号：US20020181433A1

公开(公告)日：2002-12-05

申请号：US10188279

申请日：2002-07-01

Applicant: InterDigital Technology Corporation

Inventor： Fatih M. Ozluturk ,  Alexander M. Jacques

IPC: H04B007/216

CPC classification number: H04B1/71 ,  H04B1/70735 ,  H04B1/7101 ,  H04B1/7115

Abstract: A system employing CDMA techniques for receiving a transmitted signal wherein the transmitted signal includes a plurality of short codes, each of which is transmitted repetitively over a fixed period of time and where the received signal has CW interference in addition to the transmitted signal. The system detects the presence of the short code in a plurality of time phases of the received signal by calculating a likelihood ratio for each phase. The likelihood ratio takes into account the current short code.

Abstract translation: 一种采用CDMA技术的系统，用于接收发送信号，其中所发送的信号包括多个短码，每个短码在固定的时间周期内被重复发送，并且其中所接收的信号除了所发送的信号之外还具有CW干扰。 该系统通过计算每个相位的似然比来检测接收信号的多个时间相位中的短码的存在。 似然比考虑了当前的短码。

公开(公告)号：US20020110201A1

公开(公告)日：2002-08-15

申请号：US10122992

申请日：2002-04-15

Applicant: InterDigital Technology Corporation

Inventor： Fatih M. Ozluturk ,  Stephen G. Dick ,  Leonid Kazakevich

IPC: H04L027/22

CPC classification number: H04L27/0014 ,  H04L27/22 ,  H04L2027/0016 ,  H04L2027/0024

Abstract: A system for balancing a signal having I and Q components includes means for cross correlating the I and Q components to produce a cross correlation product; means for adjusting the gain of each I and Q signal component in accordance with said cross correlation product; and means for adding one component with the adjustable gain of the other component to produce a phase-balanced signal.

Abstract translation: 用于平衡具有I和Q分量的信号的系统包括用于互相关联I和Q分量以产生互相关乘积的装置; 用于根据所述互相关乘积调整每个I和Q信号分量的增益的装置; 以及用于添加具有另一部件的可调增益的一个分量以产生相位平衡信号的装置。

公开(公告)号：US20020093933A1

公开(公告)日：2002-07-18

申请号：US10090563

申请日：2002-03-04

Applicant: InterDigital Technology Corporation

Inventor： Fatih M. Ozluturk ,  Brian Kiernan

IPC: H04L027/30 ,  H04B007/216 ,  H04Q007/20

CPC classification number: H04W52/343 ,  H03G11/04 ,  H04B1/707 ,  H04B2201/70706 ,  H04W52/143 ,  H04W52/225 ,  H04W52/346 ,  H04W52/367 ,  H04W88/08

Abstract: A method for operating a user equipment employing a CDMA technique comprises combining a plurality of spread spectrum data signals into a combined signal having a fluctuating power level corresponding to the data signals; modulating the combined signal to produce an RF signal; measuring average power of the combined signal over a selected time period; adaptively limiting the combined signal power to a calculated level based at least in part on the measured power; and transmitting the RF signal.

Abstract translation: 一种用于操作使用CDMA技术的用户设备的方法包括将多个扩展频谱数据信号组合成具有与数据信号对应的波动功率电平的组合信号; 调制组合信号以产生RF信号; 在所选择的时间段内测量组合信号的平均功率; 至少部分地基于测量的功率将组合的信号功率自适应地限制到计算的电平; 并发送RF信号。

公开(公告)号：US20020086697A1

公开(公告)日：2002-07-04

申请号：US10086325

申请日：2002-03-01

Applicant: InterDigital Technology Corporation

Inventor： Fatih M. Ozluturk ,  Gary R. Lomp

IPC: H04Q007/20

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

Abstract: An apparatus for controlling transmission power during the establishment of a channel in a CDMA communication system utilizes 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 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 units and permits the base station to quickly synchronize to the spreading code used by the subscriber unit.

公开(公告)号：US20020080733A1

公开(公告)日：2002-06-27

申请号：US10090497

申请日：2002-03-04

Applicant: InterDigital Technology Corporation

Inventor： Fatih M. Ozluturk ,  Brian Kiernan

IPC: H04B007/216 ,  H04Q007/00

CPC classification number: H04W52/343 ,  H03G11/04 ,  H04B1/707 ,  H04B2201/70706 ,  H04W52/143 ,  H04W52/225 ,  H04W52/346 ,  H04W52/367 ,  H04W88/08

Abstract: A user equipment (UE) for transmitting signals employing a CDMA technique comprises means for combining a plurality of spread spectrum data signals; means for measuring a characteristic of the output of the combining means for a given time period; and means for adaptively limiting an output of the combining means responsive at least partially to an output of the measuring means.

Abstract translation: 用于发送采用CDMA技术的信号的用户设备（UE）包括用于组合多个扩频数据信号的装置; 用于在给定时间段内测量所述组合装置的输出的特性的装置; 以及用于自适应地限制组合装置的输出的装置，其至少部分地响应于测量装置的输出。