公开(公告)号：US20020089955A1

公开(公告)日：2002-07-11

申请号：US10077076

申请日：2002-02-15

Applicant: InterDigital Technology Corporation

Inventor： Younglok Kim ,  Ariela Zeira

IPC: H04B007/216

CPC classification number: H04B1/707 ,  H04B7/0697 ,  H04L1/0618 ,  H04L1/0631 ,  H04L25/0202 ,  H04L25/03866

Abstract: The present invention is an apparatus for a base station to transmit a data field of symbols. A first data field of symbols is generated and encoded to produce a second data field having complex conjugates of the symbols of the data field. The first and second data fields are then spread, wherein the first data field is spread using a first channelization code and the second data field is spread using a second channelization code. Each of the channelization codes are uniquely associated with one of a first and second antenna. An RF signal including the first and second spread data fields is then transmitted over a first and second antenna.

Abstract translation: 本发明是用于基站发送符号数据字段的装置。 生成并编码符号的第一数据字段以产生具有数据字段的符号的复共轭的第二数据字段。 然后扩展第一和第二数据字段，其中使用第一信道化码扩展第一数据字段，并且使用第二信道化码扩展第二数据字段。 每个信道化码与第一和第二天线之一唯一地相关联。 然后，通过第一和第二天线发射包括第一和第二扩展数据字段的RF信号。

公开(公告)号：US20040009780A1

公开(公告)日：2004-01-15

申请号：US10369837

申请日：2003-02-19

Applicant: InterDigital Technology Corporation

Inventor： Stephen G. Dick ,  Younglok Kim ,  Nader Bolourchi ,  Sung-Hyuk Shin

IPC: H04B007/00

CPC classification number: H04L1/1692 ,  H04L1/0026 ,  H04L1/1671 ,  H04L2001/125

Abstract: An ACK/NACK method and system for use in time division duplex (TDD) and frequency division duplex (FDD) systems. In high speed downlink packet access (HSDPA), based on the assignment of timeslots for the high speed shared information channel (HS-SICH), each user equipment (UE) can be assigned two (2) different channelization codes. It is then possible to adopt the signaling convention that one code represents acknowledge error-free (Ack) and the other code shall represent acknowledge error condition (Nack). The Node B is able to distinguish the presence of the transmitted channelization code as opposed to the channelization code which is not transmitted. The probability of error, using this invention is an order of a magnitude smaller than if the Ack/Nack were signaled using typical modulation techniques.

Abstract translation: 用于时分双工（TDD）和频分双工（FDD）系统的ACK / NACK方法和系统。 在高速下行链路分组接入（HSDPA）中，基于高速共享信息信道（HS-SICH）的时隙分配，每个用户设备（UE）可被分配两个不同的信道化码。 然后可以采用一个代码表示无错误（Ack）的信令约定，另一个代码将表示确认错误条件（Nack）。 节点B能够区分发送的信道化码的存在，而不是不发送的信道化码。 使用本发明的误差概率是小于如果使用典型的调制技术来表示Ack / Nack的量级的数量级。

公开(公告)号：US20040005903A1

公开(公告)日：2004-01-08

申请号：US10369836

申请日：2003-02-19

Applicant: InterDigital Technology Corporation

Inventor： Stephen G. Dick ,  Younglok Kim ,  Nader Bolourchi ,  Sung-Hyuk Shin

IPC: H04B017/02 ,  H04B007/00 ,  H04Q007/20

CPC classification number: H04L1/20 ,  H04L1/1803 ,  H04L1/1829 ,  H04L1/1854 ,  H04L2001/0098 ,  H04L2001/125

Abstract: A criterion for biasing a binary decision requiring an unequal protection which utilizes a measured signal to interference ratio (SIR). The SIR may be derived from a determination of channel estimation. The SIR is compared against a threshold, the threshold being selected to bias the decision toward a NACK as opposed to an ACK determination. The technique is advantageous for providing biased binary decisions for high speed downlink packets (HSDP) but may be utilized for both uplink and downlink applications.

Abstract translation: 用于偏置需要使用测量信号干扰比（SIR）的不相等保护的二进制决策的标准。 SIR可以从信道估计的确定导出。 将SIR与阈值进行比较，选择该阈值以将决策偏向于与ACK确定相反的NACK。 该技术有利于为高速下行链路分组（HSDP）提供偏置的二进制决策，但是可以用于上行链路和下行链路应用。

公开(公告)号：US20030223355A1

公开(公告)日：2003-12-04

申请号：US10308473

申请日：2002-12-03

Applicant: InterDigital Technology Corporation

Inventor： Jung Lin Pan ,  Younglok Kim ,  Ariela Zeira

IPC: H04J011/00

CPC classification number: H04L25/0244 ,  H04L25/0224

Abstract: A plurality of communication bursts are transmitted substantially simultaneously in a time slot of a time division duplex/code division multiple access communication system. The communication system has a maximum number of K midamble shifts. Each burst has an assigned midamble. Each midamble is a shifted version of a basic midamble code having a period of P. A combined signal is received. The combined signal includes a received version of each of the communication burst's midambles. A P by P square circulant matrix is constructed including the K midamble shifts. A channel response is determined for each of the K midamble shifts using a prime factor algorithm (PFA) discrete Fourier transform (DFT) algorithm, the received combined signal and the P by P square circulant matrix. The PFA DFT algorithm has a plurality of stages. Each stage has P inputs.

Abstract translation: 在时分双工/码分多址通信系统的时隙中基本上同时发送多个通信脉冲串。 通信系统具有最大数量的K个中间码位移。 每个突发都有一个指定的中间码。 每个中间码是具有周期为P的基本中间码的移位版本。接收组合信号。 组合信号包括每个通信突发的中间码的接收版本。 构造P平方循环矩阵的P包括K个中间码位移。 使用素数因子算法（PFA）离散傅里叶变换（DFT）算法，接收的组合信号和P乘P平方循环矩阵，为每个K中间码位移确定信道响应。 PFA DFT算法具有多个阶段。 每个阶段都有P个输入。

公开(公告)号：US20030021249A1

公开(公告)日：2003-01-30

申请号：US10174121

申请日：2002-06-18

Applicant: InterDigital Technology Corporation

Inventor： Younglok Kim ,  Jung-Lin Pan ,  Ariela Zeira ,  Alexander Reznik

IPC: H04B007/216

CPC classification number: H04B1/71052 ,  H04B1/7105 ,  H04B2201/70703 ,  H04B2201/70705

Abstract: A plurality of communication signals have differing spreading codes. Each communication has an associated code comprising chips. For each chip of each communication, a vector of that chip convolved with an impulse response is produced. For each communication, support blocks comprising the chip vectors are produced. A number of the chip vectors in a support block is based on that communication's spreading factor. A system response matrix is assembled. The system response matrix has symbol sub-matrices. Each symbol sub-matrix comprises a support block from each communication. Data of the communications is detected using the symbol response matrix.

Abstract translation: 多个通信信号具有不同的扩展码。 每个通信具有包括芯片的相关代码。 对于每个通信的每个芯片，产生与脉冲响应卷积的该芯片的矢量。 对于每个通信，产生包括芯片向量的支持块。 支持块中的多个码片向量基于该通信的扩频因子。 组合系统响应矩阵。 系统响应矩阵具有符号子矩阵。 每个符号子矩阵包括来自每个通信的支持块。 使用符号响应矩阵检测通信的数据。

公开(公告)号：US20020075832A1

公开(公告)日：2002-06-20

申请号：US10077565

申请日：2002-02-15

Applicant: InterDigital Technology Corporation

Inventor： Younglok Kim ,  Ariela Zeira

IPC: H04B007/216

CPC classification number: H04B1/707 ,  H04B7/0697 ,  H04L1/0618 ,  H04L1/0631 ,  H04L25/0202 ,  H04L25/03866

Abstract: The present invention is an apparatus for a user equipment (UE) to transmit a data field of symbols. A first data field of symbols is generated and encoded d to produce a second data field having complex conjugates of the symbols of the data field. The first and second data fields are then spread, wherein the first data field is spread using a first channelization code and the second data field is spread using a second channelization code. Each of the channelization codes are uniquely associated with one of a first and second antenna. An RF signal including the first and second spread data fields is then transmitted over a first and second antenna.

Abstract translation: 本发明是一种用于用户设备（UE）发送符号数据字段的装置。 产生符号的第一数据字段并且被编码d以产生具有数据字段的符号的复共轭的第二数据字段。 然后扩展第一和第二数据字段，其中使用第一信道化码扩展第一数据字段，并且使用第二信道化码扩展第二数据字段。 每个信道化码与第一和第二天线之一唯一地相关联。 然后，通过第一和第二天线发射包括第一和第二扩展数据字段的RF信号。

公开(公告)号：US20040165567A1

公开(公告)日：2004-08-26

申请号：US10785866

申请日：2004-02-23

Applicant: InterDigital Technology Corporation

Inventor： Younglok Kim ,  June-Lin Pan ,  Ariela Zeira ,  Alexander Reznik

IPC: H04B007/216

CPC classification number: H04B1/71052 ,  H04B1/7105 ,  H04B2201/70703 ,  H04B2201/70705

Abstract: A plurality of communication signals have differing spreading codes. Each communication has an associated code comprising chips. For each chip of each communication, a vector of that chip convolved with an impulse response is produced. For each communication, support blocks comprising the chip vectors are produced. A number of the chip vectors in a support block is based on that communication's spreading factor. A system response matrix is assembled. The system response matrix has symbol sub-matrices. Each symbol sub-matrix comprises a support block from each communication. Data of the communications is detected using the symbol response matrix.

公开(公告)号：US20040141480A1

公开(公告)日：2004-07-22

申请号：US10772790

申请日：2004-02-05

Applicant: InterDigital Technology Corporation

Inventor： Younglok Kim ,  Ariela Zeira

IPC: H04Q007/00 ,  H04Q007/28

CPC classification number: H04B1/7105 ,  G06F17/16

Abstract: Data is detected on a plurality of received communications channels in a CDMA wireless communication system. A solution for estimating data of the received communication signals is modeled using a linear system requiring a matrix inversion. Columns or rows of an approximate Cholesky factor are determined. A difference between the determined columns or rows is determined. If the determined difference is less than a threshold, subsequent columns or rows are determined by previously determined columns or rows. The data of the received communication signals is estimated using the approximate Cholesky factor, and the estimate is used to detect data received on the plurality of channels.

Abstract translation: 在CDMA无线通信系统中的多个接收到的通信信道上检测数据。 用于估计接收到的通信信号的数据的解决方案是使用需要矩阵求逆的线性系统来建模的。 确定近似Cholesky因子的列或行。 确定确定的列或行之间的差异。 如果所确定的差值小于阈值，则通过先前确定的列或行来确定随后的列或行。 使用近似的Cholesky因子来估计接收的通信信号的数据，并且使用该估计来检测在多个信道上接收的数据。

公开(公告)号：US20040013171A1

公开(公告)日：2004-01-22

申请号：US10327299

申请日：2002-12-20

Applicant: InterDigital Technology Corporation

Inventor： Jung-Lin Pan ,  Younglok Kim ,  Donald Grieco

IPC: H04B001/707

CPC classification number: H04B1/71055 ,  H04B1/1027 ,  H04B1/7103 ,  H04L25/0202 ,  H04L25/0204 ,  H04L25/0212 ,  H04L25/0224 ,  H04L25/03006

Abstract: Data from a plurality of communications is transmitted in a code division multiple access communication system. The transmitted communications are received. Gain factors are determined for at least one of the received communications. Data of the received communications is detected using a scaling factor derived from the determined gain values.

Abstract translation: 来自多个通信的数据在码分多址通信系统中发送。 发送的通信被接收。 为接收到的通信中的至少一个确定增益因子。 使用从确定的增益值导出的缩放因子检测接收到的通信的数据。

公开(公告)号：US20030223398A1

公开(公告)日：2003-12-04

申请号：US10396992

申请日：2003-03-25

Applicant: InterDigital Technology Corporation

Inventor： John W. Haim ,  Hyun-Seok Oh ,  Younglok Kim ,  Ariela Zeira ,  Robert A. DiFazio

IPC: H04B007/216

CPC classification number: H04B1/70735 ,  H04B1/7105

Abstract: The present invention is a receiver which includes a blind code detection device for determining the identity of a plurality of channels over which information is to be transmitted when the identity of all channels is not known by the receiver. The blind code detection device generates a candidate channel list filled with the identify of selected channels out of the plurality of channels. A multi-user detection device, responsive to the blind code detection device, processes those channels in the candidate code list.

Abstract translation: 本发明是一种接收机，其包括盲码检测装置，用于当接收机不知道所有信道的身份时，确定要发送信息的多个信道的身份。 盲代码检测装置生成填充有多个信道中所选择的信道的标识的候选信道列表。 响应于盲代码检测设备的多用户检测设备处理候选代码列表中的那些信道。