公开(公告)号：US20030063657A1

公开(公告)日：2003-04-03

申请号：US10252640

申请日：2002-09-23

Applicant: InterDigital Technology Corporation

Inventor： Aykut Bultan ,  Donald M. Grieco

IPC: H04B001/69

CPC classification number: H04B1/7085 ,  H04B1/709 ,  H04L7/0029

Abstract: The present invention is for a receiver incorporated into User Equipment (UE) or base stations of a code division multiple access (CDMA) communication system. The UE and base station are in communication with one of the plurality of base stations and receives a communication signal through the receiver. The communication signal is correlated using a delay locked code tracking loop, that estimates and tracks a channel delay. The tracking loop comprises a reference code generator and an interpolator for generating timed signal versions in response to said communication. A timed signal correlator, included in the tracking loop for correlating at least two of the timed signal versions with the code reference signal. The result of the correlation is used for generating an error signal. An automatic power normalization loop (APN), that is responsive to the interpolator, generates a power error signal that normalizes the error signal through a normalization circuit.

公开(公告)号：US20020146040A1

公开(公告)日：2002-10-10

申请号：US10083796

申请日：2002-02-27

Applicant: InterDigital Technology Corporation

Inventor： Alpaslan Demir ,  Donald M. Grieco

IPC: H04J003/06

CPC classification number: H04W56/00 ,  H04B1/7083 ,  H04J3/0608 ,  H04J11/0069 ,  H04W48/16

Abstract: A method for a user equipment (UE) to establish a communication link comprising the steps of receiving an input communication signal at an initial search frequency, processing the input communication signal to retrieve a primary scrambling code, the retrieval of the primary scrambling code being a code decision, and adjusting the search frequency of the UE in response to the code decision.

Abstract translation: 一种用于用户设备（UE）建立通信链路的方法，包括以下步骤：以初始搜索频率接收输入通信信号，处理所述输入通信信号以检索主扰码，所述主扰码的检索是 代码决定，并响应于代码决定调整UE的搜索频率。

公开(公告)号：US20030152167A1

公开(公告)日：2003-08-14

申请号：US10304403

申请日：2002-11-26

Applicant: InterDigital Technology Corporation

Inventor： Hyun Seok Oh ,  Alexander Reznick ,  Donald M. Grieco

IPC: H04L027/14

CPC classification number: H04B1/7117 ,  H04B1/70754 ,  H04B1/7115

Abstract: The present invention is directed to an improved telecommunication receiver for receiving wireless multi-path communication signals. A novel RAKE receiver and a time diverse integration system for the calculation of the relative power of received signal samples are provided. Preferably, the receiver is embodied in a UE or base station of a CDMA wireless telecommunication system, such as a 3GPP system.

Abstract translation: 本发明涉及用于接收无线多径通信信号的改进的电信接收机。 提供了一种新颖的RAKE接收机和用于计算接收信号样本的相对功率的时间分散集成系统。 优选地，接收机体现在诸如3GPP系统的CDMA无线电信系统的UE或基站中。

公开(公告)号：US20020146041A1

公开(公告)日：2002-10-10

申请号：US10120735

申请日：2002-04-11

Applicant: InterDigital Technology Corporation

Inventor： Alpaslan Demir ,  Donald M. Grieco

IPC: H04J003/06

CPC classification number: H04W56/00 ,  H04B1/7083 ,  H04J3/0608 ,  H04J11/0069 ,  H04W48/16

Abstract: The present invention is a user equipment (UE) comprising a system for establishing a communication link. The system includes a first, second and third module and a controller. The first module first processes a communication signal and generates an index value associated with a primary synchronization code within the communication signal. The second module second processes the communication signal in response to the index value and a peak sample extracted from the first module and retrieves a code group number, slot offset and secondary synchronization code. The third module third processes the communication signal and retrieves a primary scrambling code in response to the code group number and the slot offset. The controller, which is coupled to the first, second and third modules, controls the adjustment of a search frequency of the UE to retrieve the primary scrambling code in the communication signal.

Abstract translation: 本发明是一种包括用于建立通信链路的系统的用户设备（UE）。 该系统包括第一，第二和第三模块和控制器。 第一模块首先处理通信信号并产生与通信信号内的主同步码相关联的索引值。 第二模块第二处理响应于索引值的通信信号和从第一模块提取的峰值样本，并且检索代码组编号，时隙偏移和辅助同步代码。 第三模块第三处理通信信号并响应于码组号和时隙偏移检索主扰码。 耦合到第一，第二和第三模块的控制器控制UE的搜索频率的调整以检索通信信号中的主扰码。

公开(公告)号：US20040228305A1

公开(公告)日：2004-11-18

申请号：US10749458

申请日：2003-12-31

Applicant: InterDigital Technology Corporation

Inventor： Donald M. Grieco

IPC: H04B007/216

CPC classification number: H04L1/0056 ,  H04B1/7105 ,  H04B2201/70702 ,  H04L1/0046 ,  H04L1/0047 ,  H04L25/0208 ,  H04W36/18

Abstract: A wireless communication system, method and apparatus are provided for soft and softer handover of a mobile wireless transmit/receive unit (WTRU) between two or more base stations and/or base station sectors. A network control unit assigns selected base stations to transmit communication data to the WTRU based on the WTRU being disposed in base station or base station sector geographic range of service. A WTRU joint detector (JD) receiver is configured to receive and process one or more wireless data signals in each of a series of timeframes where each signal received within a common timeslot has a unique channel encoding of the same communication data. The JD receiver has a plurality of channel estimators that estimate received signals within a common timeslot and a combiner configured to decode and combine the channel estimates to derive a resultant data signal.

Abstract translation: 提供了一种用于在两个或多个基站和/或基站扇区之间的移动无线发射/接收单元（WTRU）的软和更软切换​​的无线通信系统，方法和装置。 网络控制单元基于在基站或基站扇区地理服务范围中布置的WTRU来分配所选择的基站以将通信数据发送到WTRU。 WTRU联合检测器（JD）接收器被配置为在一系列时间帧中的每一个中接收和处理一个或多个无线数据信号，其中在公共时隙内接收的每个信号具有相同通信数据的唯一信道编码。 JD接收机具有估计公共时隙内的接收信号的多个信道估计器，以及被配置为对信道估计进行解码和组合以导出结果数据信号的组合器。

公开(公告)号：US20040214593A1

公开(公告)日：2004-10-28

申请号：US10848185

申请日：2004-05-18

Applicant: InterDigital Technology Corporation

Inventor： Sung-Hyuk Shin ,  Ariela Zeira ,  Fatih Ozluturk ,  Donald M. Grieco

IPC: H04Q007/20 ,  H04B007/00

CPC classification number: H04W52/228 ,  H04W52/08 ,  H04W52/24 ,  H04W52/287 ,  H04W52/44

Abstract: A transmitting station performs closed loop power control prior to a transmission pause. A closed loop transmission power level prior to the pause is determined. A reference signal is received and a received power level of the reference signal prior to and during the transmission pause is determined. The measured reference signal received power levels are compared to a transmit power level of the reference signals to produce a pathloss estimate of the reference signal prior to and during the transmission pause. A new transmit power level is determined by adjusting the closed loop transmission power level by a change between the prior to and during pathloss estimates. A transmission power level of the transmitting station is set to the determined new transmit power level. A communication is transmitted at the set transmission power level.

公开(公告)号：US20040125788A1

公开(公告)日：2004-07-01

申请号：US10660842

申请日：2003-09-12

Applicant: InterDigital Technology Corporation

Inventor： Philip J. Pietraski ,  Alpaslan Demir ,  Donald M. Grieco

IPC: H04J003/06

CPC classification number: H04B1/70735 ,  H04B1/70755 ,  H04B1/7083 ,  H04B1/709 ,  H04B1/7103 ,  H04B2201/70707

Abstract: The invention provides embodiments to facilitate cell search. In one embodiment, received samples are split into a plurality of sample sets for processing. Each of the sets is processed and an accumulated result is divided by an estimated noise value. In another embodiment, a code correlator correlates the received signal with a primary synchronization code and an auxiliary code correlator having a same length as the code correlator correlates the received signal with a code having a low cross correlation with the primary synchronization code. In another embodiment, a division of an accumulated result with a noise estimate is performed using indexes of the most significant bits.

Abstract translation: 本发明提供了便于小区搜索的实施例。 在一个实施例中，将接收到的样本分成多个样本集进行处理。 处理每个集合，并将累积结果除以估计的噪声值。 在另一个实施例中，码相关器将接收的信号与主同步码相关，并且与码相关器具有相同长度的辅助码相关器将接收的信号与与主同步码具有低互相关的代码相关。 在另一个实施例中，使用最高有效位的索引来执行累积结果与噪声估计的分割。

公开(公告)号：US20040120387A1

公开(公告)日：2004-06-24

申请号：US10676152

申请日：2003-09-29

Applicant: InterDigital Technology Corporation

Inventor： Aykut Bultan ,  Donald M. Grieco

IPC: H04B001/707

CPC classification number: H04L7/0029 ,  H04B1/70756 ,  H04B1/7077 ,  H04B1/7117 ,  H04L7/0004 ,  H04L25/0202

Abstract: A digital timing synchronizer of a receiver is provided for timing synchronization to a transmitter in a wireless communication system, wherein the received signal has a timing error with respect to a reference code. A channel estimator estimates an initial code phase of the received signal. A code generator generates a timing reference code that is adjustable by integer increments. An interpolation feedback circuit is configured for interpolation and correction of the timing error, whereby the interpolation is achieved through an integer code shift, plus a quantized fractional adjustment selected from a look-up table of quantized fractional adjustment values and their associated predetermined interpolator coefficients, from which a time corrected version of the received signal is produced.

Abstract translation: 接收机的数字定时同步器被提供用于在无线通信系统中与发射机进行定时同步，其中所接收的信号相对于参考码具有定时误差。 信道估计器估计接收信号的初始码相位。 代码生成器生成可以整数增量调整的定时参考代码。 内插反馈电路被配置为用于定时误差的内插和校正，由此通过整数代码移位加上从量化分数调整值的查找表及其相关联的预定内插器系数中选择的量化分数调整来实现内插， 由此产生接收信号的时间校正版本。