公开(公告)号：WO2008042255A2

公开(公告)日：2008-04-10

申请号：PCT/US2007/020924

申请日：2007-09-28

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  ZEIRA, Eldad ,  REZNIK, Alexander ,  YANG, Rui ,  PIETRASKI, Philip, J. ,  YANG, Yongwen

Inventor： ZEIRA, Eldad ,  REZNIK, Alexander ,  YANG, Rui ,  PIETRASKI, Philip, J. ,  YANG, Yongwen

IPC: H04L25/03

CPC classification number: H04B7/0456 ,  G06F11/006 ,  H04B7/0417 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/0636 ,  H04B7/0639 ,  H04B7/0652 ,  H04L1/0026 ,  H04L1/0057 ,  H04L1/007 ,  H04L1/0073 ,  H04L1/06 ,  H04L1/1671 ,  H04L65/601 ,  H04L69/40 ,  H04L2025/03802 ,  H04L2209/34

Abstract: A method and apparatus for encoding channel quality indicator (CQI) and precoding control information (PCI) bits are disclosed. Each of input bits, such as CQI bits and/or PCI bits, has a particular significance. The input bits are encoded with a linear block coding. The input bits are provided with an unequal error protection based on the significance of each input bit. The input bits may be duplicated based on the significance of each input bit and equal protection coding may be performed. A generator matrix for the encoding may be generated by elementary operation of conventional basis sequences to provide more protection to a most significant bit (MSB).

Abstract translation: 公开了一种用于编码信道质量指示符（CQI）和预编码控制信息（PCI）比特的方法和装置。 输入比特中的每一个比如CQI比特和/或PCI比特具有特殊意义。 输入比特用线性块编码进行编码。 基于每个输入位的重要性，输入位具有不等差错保护。 输入比特可以基于每个输入比特的重要性而被复制，并且可以执行相等的保护编码。 用于编码的生成矩阵可以通过传统基本序列的基本操作来生成，以为最高有效位（MSB）提供更多保护。

公开(公告)号：WO2007015788A2

公开(公告)日：2007-02-08

申请号：PCT/US2006/027585

申请日：2006-07-17

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  BULTAN, Aykut ,  PAN, Jung-Lin ,  YANG, Rui ,  KEARNEY, Kenneth, P.

Inventor： BULTAN, Aykut ,  PAN, Jung-Lin ,  YANG, Rui ,  KEARNEY, Kenneth, P.

IPC: H04B3/46

CPC classification number: H03J7/04

Abstract: A method and apparatus for automatically correcting the frequency of a local oscillator of a receiver. A primary common pilot channel (CPICH) code sequence is generated by a CPICH code generator based on a reference cell identification signal and a frame start signal. The received despread CPICH code sequence is used to generate an estimated frequency error signal. A control voltage generator based on the estimated frequency error signal generates a control voltage signal. The CPICH code generator generates the CPICH code sequence based on signals received from a high speed downlink packet access (HSDPA) serving cell when HSDPA is active, or a timing reference cell when HSDPA is not active. The present invention achieves full maximum ratio combining gain when space-time transmit diversity (STTD) is used, even without receiving a transmit diversity indication.

Abstract translation: 一种用于自动校正接收机的本地振荡器的频率的方法和装置。 基于参考小区识别信号和帧起始信号，由CPICH码发生器生成主公共导频信道（CPICH）码序列。 接收的解扩CPICH码序列用于产生估计的频率误差信号。 基于估计频率误差信号的控制电压发生器产生控制电压信号。 当HSDPA处于活动状态时，CPICH码发生器基于从高速下行链路分组接入（HSDPA）服务小区接收的信号，或者当HSDPA不活动时，定时参考小区，生成CPICH码序列。 即使没有接收到发射分集指示，本发明在使用空时传输分集（STTD）时实现了全最大比组合增益。

公开(公告)号：WO2005053206A2

公开(公告)日：2005-06-09

申请号：PCT/US2004/038611

申请日：2004-11-19

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  OLESEN, Robert, Lind ,  REZNIK, Alexander ,  PIETRASKI, Philip, J. ,  YANG, Rui

Inventor： OLESEN, Robert, Lind ,  REZNIK, Alexander ,  PIETRASKI, Philip, J. ,  YANG, Rui

IPC: H04L

CPC classification number: H04L27/2647 ,  H04B7/0845 ,  H04B7/086

Abstract: A wireless communication apparatus which uses fast Fourier transforms (FFTs) in an orthogonal frequency division multiplexing (OFDM) receiver which incorporates a beam space antenna array. The beam space antenna array may be implemented with a Butler matrix array. The beam space antenna array may be a circular array, vertical array, or a combination of both circular and vertical arrays, for providing the desired angular antenna coverage. In one embodiment, the antenna array is optimized because the FFTs are linear invariant transform operators, whereby the order of operations in the OFDM receiver can be interchanged.

Abstract translation: 一种在包含波束空间天线阵列的正交频分复用（OFDM）接收机中使用快速傅里叶变换（FFT）的无线通信装置。 波束空间天线阵列可以用Butler矩阵阵列来实现。 波束空间天线阵列可以是圆形阵列，垂直阵列或圆形阵列和垂直阵列的组合，用于提供所需的角度天线覆盖。 在一个实施例中，天线阵列被优化，因为FFT是线性不变变换运算符，由此OFDM接收机中的操作顺序可以互换。

公开(公告)号：WO2003041293A1

公开(公告)日：2003-05-15

申请号：PCT/US2002/035168

申请日：2002-11-01

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： BOLOURCHI, Nader ,  KAZAKEVICH, Leonid ,  YANG, Rui

IPC: H04B1/707

CPC classification number: H01Q3/2611 ,  H04B7/0617 ,  H04B7/0669 ,  H04J13/0077 ,  H04W88/08

Abstract: The number of users (USER A, USER B) and data (d A , d B ) capacity of wireless systems (Fig. 1) are increased by employing apparatus and method for increasing the number of spreading codes (C A , C B ) available in the system by providing a mechanism to reuse the already allocated spreading code or use the codes that may correlate to those already being used within the same sector/cell. This, in return, provides capacity improvement proportional to the number of added base station (BS) antennas (1, 2, 3) for each cell. An antenna null steering technique for code allocation maintains the cross correlation properties of the codes only for the desired user and to obtain a gain in capacity improvement.

Abstract translation: 用户数量A，用户B和数据dA，无线系统的dB容量图。 1通过使用用于增加系统中可用的扩展码CA，CB的数量的装置和方法来增加，通过提供一种机制来重用已经分配的扩展码或使用可能与已经在同一扇区/ 细胞。 这反过来提供了与每个小区的添加的基站BS天线1,2,3的数量成比例的容量提升。 用于代码分配的天线零点转向技术仅针对期望的用户维护代码的互相关性质，并获得容量改进的增益。

公开(公告)号：WO2007021591A2

公开(公告)日：2007-02-22

申请号：PCT/US2006/030467

申请日：2006-08-04

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  PAN, Jung-Lin ,  YANG, Rui ,  TERRY, Stephen, E.

Inventor： PAN, Jung-Lin ,  YANG, Rui ,  TERRY, Stephen, E.

IPC: H04L1/18 ,  G08C25/02

CPC classification number: H04L1/1867 ,  H04L1/0072 ,  H04L1/1812

Abstract: A wireless communication method and apparatus for detecting and decoding enhanced dedicated channel (E-DCH) hybrid automatic repeat request (H-ARQ) indicator channel (E-HICH) transmissions are disclosed. A wireless transmit/receive unit (WTRU) receives E-HICH transmissions and detects an H-ARQ indicator transmitted via the E-HICH by performing a binary hypothesis test. The WTRU then generates an acknowledgement (ACK) message or a non-acknowledgement (NACK) message based on the detected H-ARQ indicator. A reliability test may be further performed to improve performance, whereby the binary hypothesis test may be performed only if the reliability test is passed.

Abstract translation: 公开了一种用于检测和解码增强型专用信道（E-DCH）混合自动重传请求（H-ARQ）指示符信道（E-HICH）传输的无线通信方法和装置。 无线发射/接收单元（WTRU）接收E-HICH传输并通过执行二进制假设检验来检测通过E-HICH发送的H-ARQ指示符。 然后，WTRU基于检测到的H-ARQ指示符生成确认（ACK）消息或非确认（NACK）消息。 可以进一步进行可靠性测试以提高性能，从而仅在通过可靠性测试时才可以执行二进制假设检验。

公开(公告)号：WO2006101703A3

公开(公告)日：2006-09-28

申请号：PCT/US2006/007827

申请日：2006-03-06

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  PIETRASKI, Philip, J. ,  BELURI, Mihaela ,  YANG, Rui ,  CHINCHOLI, Amith, Vikram ,  KEARNEY, Kenneth, P.

Inventor： PIETRASKI, Philip, J. ,  BELURI, Mihaela ,  YANG, Rui ,  CHINCHOLI, Amith, Vikram ,  KEARNEY, Kenneth, P.

IPC: H04B7/216

Abstract: A method and apparatus for compensating for phase noise of symbols spread with a long spreading code are disclosed. To compensate for the phase noise, a phase error estimate is generated from despread symbols with a short spreading code. A phase correcting phasor is applied to chip rate data before despreading the data with a long spreading code. A signal-to-interference ratio (SIR) on a common pilot channel (CPICH) may be calculated by spreading the data with a parent spreading code in an orthogonal variable spreading factor (OVSF) code tree and by combining symbols. Alternatively, a magnitude of the symbols may be used in estimating the SIR. The SIR of a channel using a short spreading code and an SIR of a channel using a long spreading code are measured. The SIR of the channel with the long spreading code may be compensated in accordance with a difference between degradation of the SIRs.

公开(公告)号：WO2006052596A2

公开(公告)日：2006-05-18

申请号：PCT/US2005/039635

申请日：2005-11-02

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  PIETRASKI, Philip, J. ,  BELURI, Mihaela ,  DEMIR, Alpaslan ,  PAN, Jung-Lin ,  STERNBERG, Gregory, S. ,  YANG, Rui ,  LI, Bin

Inventor： PIETRASKI, Philip, J. ,  BELURI, Mihaela ,  DEMIR, Alpaslan ,  PAN, Jung-Lin ,  STERNBERG, Gregory, S. ,  YANG, Rui ,  LI, Bin

IPC: H03H7/30

CPC classification number: H04L25/03038 ,  H04B1/7097 ,  H04L27/0014 ,  H04L2025/03509 ,  H04L2025/03547 ,  H04L2025/03585 ,  H04L2025/03611 ,  H04L2025/03617 ,  H04L2025/03687 ,  H04L2027/003 ,  H04L2027/0038 ,  H04L2027/0065

Abstract: An adaptive equalizer including an equalizer filter and a tap coefficients generator used to process a sample data stream derived from a plurality of received signals is disclosed. The tap coefficients generator includes an equalizer tap update unit, a vector norm square estimator, an active taps mask generator, a switch and a pilot amplitude reference unit used to minimize the dynamic range of the equalizer filter. A dynamic mask vector is used to mask active taps generated by the equalizer tap update unit when an unmasked signal output by the equalizer filter is selected by the switch to generate an error signal fed to the equalizer tap update unit. A fixed mask vector is used to mask active taps generated by the equalizer tap update unit when a masked signal output by the equalizer filter is used to generate the error signal.

Abstract translation: 公开了一种包括均衡器滤波器和用于处理从多个接收信号导出的采样数据流的抽头系数发生器的自适应均衡器。 抽头系数发生器包括均衡器抽头更新单元，矢量范数平方估计器，有源抽头掩码发生器，用于最小化均衡器滤波器的动态范围的开关和导频振幅参考单元。 当由开关选择由均衡器滤波器输出的未屏蔽信号以产生馈送到均衡器抽头更新单元的误差信号时，动态屏蔽矢量用于屏蔽均衡器抽头更新单元产生的有效抽头。 当使用由均衡器滤波器输出的屏蔽信号来产生误差信号时，固定屏蔽矢量用于屏蔽均衡器抽头更新单元产生的有源抽头。

公开(公告)号：WO2005006568A3

公开(公告)日：2005-01-20

申请号：PCT/US2004/018593

申请日：2004-06-10

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  PIETRASKI, Philip, J. ,  STERNBERG, Gregory, S. ,  YANG, Rui

Inventor： PIETRASKI, Philip, J. ,  STERNBERG, Gregory, S. ,  YANG, Rui

IPC: H04B1/00

Abstract: A method for biasing signal-to-interference ratio (SIR) to generate channel quality indicator (CQI) includes measuring the packet error rate (PER) of a received signal and comparing the PER to a to the target PER to generate a correction term. The correction term is combined with the SIR estimation of a reference channel to generate a CQI. The CQI is reported to a transmitter to adjust signal configurations, such as code rate, modulation type, number of codes, power offset.

公开(公告)号：WO2007027526A3

公开(公告)日：2007-03-08

申请号：PCT/US2006/033275

申请日：2006-08-25

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  PAN, Jung-Lin ,  SHIN, Sung-Hyuk ,  YANG, Rui

Inventor： PAN, Jung-Lin ,  SHIN, Sung-Hyuk ,  YANG, Rui

IPC: H04L1/00

Abstract: A wireless communication method and apparatus for decoding an enhanced uplink dedicated channel (E-DCH) absolute grant channel (E-AGCH) transmissions are disclosed. A wireless transmit/receive unit (WTRU) receives E-AGCH data which includes a cyclic redundancy check (CRC) part and a data part. The CRC part is masked with a WTRU identity (ID) at a Node-B. The CRC part and the data part are demultiplexed and the CRC part is demasked with the WTRU ID. A CRC is then performed with the demasked CRC part. If the CRC passes the data part is sent to an enhanced uplink medium access control (MAC-e) entity. The WTRU ID may be a primary E-DCH radio network temporary identity (E-RNTI) or a secondary E-RNTI. When the E-AGCH data is transmitted over a 10ms frame, if the CRC fails, E-AGCH data via subsequent subframe may be soft combined with the previous E-AGCH data.

公开(公告)号：WO2006121721A3

公开(公告)日：2006-11-16

申请号：PCT/US2006/016935

申请日：2006-05-02

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  LI, Bin ,  YANG, Rui ,  STERNBERG, Gregory, S.

Inventor： LI, Bin ,  YANG, Rui ,  STERNBERG, Gregory, S.

IPC: H04B1/69

Abstract: The present invention is related to a method and apparatus for estimating signal-to-noise ratio (SNR) based on dedicated physical channel (DPCH) pilot symbols in a wireless communication system. A receiver receives a DPCH transmission and a despreader despreads the received DPCH transmission. A selector selects pilot symbols in the despread DPCH transmission. A signal power estimator estimates signal power based on the pilot symbols, and a noise power estimator estimates noise power based on the received DPCH transmission. A SNR estimator estimates an SNR based on the signal power estimation and the noise power estimation. The noise power estimator may calculate the noise power estimation either based only on pilot symbols or based on both pilot symbols and non-pilot symbols. The DPCH transmission may be transmitted using more than one antenna for transmit diversity.