公开(公告)号：US20090323775A1

公开(公告)日：2009-12-31

申请号：US12552831

申请日：2009-09-02

Applicant: Fatih Ozluturk ,  Jung-Lin Pan

Inventor： Fatih Ozluturk ,  Jung-Lin Pan

IPC: H04B1/707

CPC classification number: H04B1/7105 ,  H04B1/62 ,  H04B1/7097 ,  H04B2201/709709 ,  H04L25/03178 ,  H04L25/03343 ,  H04L27/34 ,  H04L2025/03624

Abstract: A method and apparatus for transmitting data in code division multiple access communications. The method includes processing spread first data with a channel response matrix using an equalization circuit to pre-equalize the spread data to compensate for a channel response prior to transmission. The pre-equalized data is received and recovered by a receiver. Second data, transmitted from the receiver, is received and recovered using the equalization circuit to equalize the second data to compensate for a channel response that the first data encountered.

Abstract translation: 一种用于在码分多址通信中传输数据的方法和装置。 该方法包括使用均衡电路利用信道响应矩阵来处理扩展的第一数据，以对扩展数据进行预均衡以补偿传输之前的信道响应。 预均衡数据由接收机接收和恢复。 从接收机发送的第二数据使用均衡电路被接收和恢复，以均衡第二数据以补偿第一数据遇到的信道响应。

公开(公告)号：US20090323769A1

公开(公告)日：2009-12-31

申请号：US12555307

申请日：2009-09-08

Applicant: Jung-Lin Pan ,  Ariela Zeira

Inventor： Jung-Lin Pan ,  Ariela Zeira

IPC: H04B1/69

CPC classification number: H04B1/7105 ,  H04B1/707

Abstract: Data is estimated of a plurality of received spread spectrum signals by a wireless communication apparatus. The plurality of received communications are received in a shared spectrum. The received communications are sampled to produce a received vector of sequential samples. The received vector is processed to produce a plurality of segments. Each segment is processed separately to estimate data of the received communications.

公开(公告)号：US20090228753A1

公开(公告)日：2009-09-10

申请号：US12469982

申请日：2009-05-21

Applicant: Jung-Lin Pan ,  Rui Yang ,  Stephen E. Terry

Inventor： Jung-Lin Pan ,  Rui Yang ,  Stephen E. Terry

IPC: H04L1/08 ,  G06F11/14

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能执行二进制假设检验。

公开(公告)号：US20090201905A1

公开(公告)日：2009-08-13

申请号：US12424914

申请日：2009-04-16

Applicant: Jaeyoung Kwak ,  Donald M. Grieco ,  Jung-Lin Pan ,  Ariela Zeira

Inventor： Jaeyoung Kwak ,  Donald M. Grieco ,  Jung-Lin Pan ,  Ariela Zeira

IPC: H04B7/216

CPC classification number: H04B1/7103 ,  H04B1/70735 ,  H04B17/327 ,  H04B2201/70701

Abstract: A method and apparatus for estimating channelization codes in a wireless transmit/receive unit (WTRU) using blind code detection (BCD). A WTRU receives communication bursts and detects a midamble in the received burst. A candidate code list is generated in accordance with the detected midamble. The candidate code list includes channelization codes intended for both the intended WTRU and other WTRUs. Active channelization codes among the codes in the candidate list are identified, and the identified codes are forwarded to a multi-user detector (MUD). Since the orthogonal variable spreading factor code maintains the orthogonality between codes of different SF, SFs of other WTRUs follow the SF of the intended WTRU. Moreover, since the data for other WTRUs is not used in symbol processing after MUD, the performance of MUD for the intended WTRU is preserved with the SF ambiguity of other WTRUs.

Abstract translation: 一种使用盲码检测（BCD）估计无线发射/接收单元（WTRU）中的信道化码的方法和装置。 WTRU接收通信突发并检测接收到的突发中的中间码。 根据检测到的中间码产生候选码列表。 候选代码列表包括旨在用于预期的WTRU和其他WTRU的信道化代码。 识别候选列表中的代码之间的主动信道化代码，并将所识别的代码转发到多用户检测器（MUD）。 由于正交可变扩频因子码维持不同SF的码之间的正交性，其他WTRU的SF遵循预期的WTRU的SF。 此外，由于在MUD之后的其他WTRU的数据不用于符号处理，所以对于预定的WTRU的MUD的性能由其他WTRU的SF模糊性来保留。

公开(公告)号：US07570690B2

公开(公告)日：2009-08-04

申请号：US11265373

申请日：2005-11-02

Applicant: Philip J. Pietraski ,  Mihaela Beluri ,  Alpaslan Demir ,  Jung-Lin Pan ,  Gregory S. Sternberg ,  Rui Yang ,  Bin Li

Inventor： Philip J. Pietraski ,  Mihaela Beluri ,  Alpaslan Demir ,  Jung-Lin Pan ,  Gregory S. Sternberg ,  Rui Yang ,  Bin Li

IPC: H03K5/08 ,  H04B1/10 ,  H03K5/159

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：US20090080495A1

公开(公告)日：2009-03-26

申请号：US12329985

申请日：2008-12-08

Applicant: Jaeyoung Kwak ,  Jung-Lin Pan ,  Ariela Zeira

Inventor： Jaeyoung Kwak ,  Jung-Lin Pan ,  Ariela Zeira

IPC: H04B1/69 ,  H04B1/10

CPC classification number: H04B1/71055 ,  H04B1/7093 ,  H04B1/71072 ,  H04B7/0854 ,  H04L1/06 ,  H04L25/0212 ,  H04L25/0226 ,  H04L25/03305 ,  H04L25/03318

Abstract: A plurality of data signals are received over an antenna array having a plurality of antenna elements. The data signals are transmitted over a shared spectrum in a wireless communication system. A signal having each of the data signals is received over each antenna element. The plurality of data signals are grouped into a plurality of groups. The received signals of the antenna elements are matched filtered for a first group of the plurality of groups, producing a matched filtered result. Data is jointly detected of the first group using the matched filtered result. An interference correction signal is constructed using the detected data for each antenna element. The interference cancelled result is subtracted from the received signal of each antenna element, producing an interference cancelled result for each antenna element. Data is successively detected for remaining groups using the interference cancelled result for each antenna element.

Abstract translation: 通过具有多个天线元件的天线阵列接收多个数据信号。 数据信号通过无线通信系统中的共享频谱传输。 在每个天线元件上接收具有每个数据信号的信号。 多个数据信号被分组成多个组。 天线元件的接收信号对于多个组中的第一组进行匹配滤波，产生匹配的滤波结果。 使用匹配的过滤结果联合检测第一组的数据。 使用每个天线元件的检测数据构建干扰校正信号。 从每个天线元件的接收信号中减去干扰消除结果，产生每个天线元件的干扰消除结果。 使用每个天线元件的干扰消除结果对剩余组连续检测数据。

公开(公告)号：US07414999B2

公开(公告)日：2008-08-19

申请号：US11530919

申请日：2006-09-12

Applicant: Parthapratim De ,  Ariela Zeira ,  Jung-Lin Pan ,  Raj Mani Misra

Inventor： Parthapratim De ,  Ariela Zeira ,  Jung-Lin Pan ,  Raj Mani Misra

IPC: H04B7/216

CPC classification number: H04B1/7105 ,  H04B1/71052 ,  H04B2201/70707 ,  H04L25/0212

Abstract: A transmitter site transmits a plurality of data signals over a shared spectrum in a code division multiple access communication system. Each transmitted data signal experiences a similar channel response. A combined signal of the transmitted data signals is received. The combined signal is sampled at a multiple of the chip rate. The channel response for the combined signal is determined. A first element of a spread data vector is determined using the combined signal samples and the estimated channel response. Using a factor from the first element determination, remaining elements of the spread data vector are determined. The data of the data signals is determined using the determined elements of the spread data vector.

Abstract translation: 发射机站在码分多址通信系统中通过共享频谱发送多个数据信号。 每个发送的数据信号经历类似的信道响应。 接收发送的数据信号的组合信号。 组合信号以芯片速率的倍数进行采样。 确定组合信号的信道响应。 使用组合的信号样本和估计的信道响应来确定扩展数据向量的第一元素。 使用来自第一元素确定的因子，确定扩展数据向量的剩余元素。 使用所确定的扩展数据矢量的元素来确定数据信号的数据。

公开(公告)号：US20070140106A1

公开(公告)日：2007-06-21

申请号：US11611510

申请日：2006-12-15

Applicant: Yingming Tsai ,  Guodong Zhang ,  Jung-Lin Pan ,  Fatih Ozluturk

Inventor： Yingming Tsai ,  Guodong Zhang ,  Jung-Lin Pan ,  Fatih Ozluturk

IPC: H04J11/00 ,  H04J3/06

CPC classification number: H04L27/2613 ,  H04B7/2681 ,  H04J11/0069 ,  H04J11/0073 ,  H04L5/0007 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/0064 ,  H04L27/2636 ,  H04L27/2655 ,  H04L27/2656 ,  H04L27/2657 ,  H04L27/2662 ,  H04W48/16 ,  H04W56/00

Abstract: A method for performing cell search in an orthogonal frequency division multiple access (OFDMA) based cellular communication network in which a primary synchronization channel (P-SCH), and optionally a secondary synchronization channel (S-SCH), carries cell search information. A downlink signal is received containing P-SCH symbols. The P-SCH symbols are processed to obtain an initial detection of frame timing, orthogonal frequency division multiplexing (OFDM) symbol timing, a cell identifier (ID), a frequency offset, and a cell transmission bandwidth. Optionally, an OFDM symbol timing self-check and error correction is then performed.

Abstract translation: 一种在基于正交频分多址（OFDMA）的蜂窝通信网络中执行小区搜索的方法，其中主同步信道（P-SCH）和可选地的辅同步信道（S-SCH）携带小区搜索信息。 接收包含P-SCH符号的下行链路信号。 处理P-SCH符号以获得帧定时，正交频分复用（OFDM）符号定时，小区标识符（ID），频率偏移和小区传输带宽的初始检测。 可选地，执行OFDM符号定时自检和纠错。

公开(公告)号：US20070076791A1

公开(公告)日：2007-04-05

申请号：US11427217

申请日：2006-06-28

Applicant: Robert DiFazio ,  Jung-Lin Pan ,  Bin Li ,  Mihaela Beluri

Inventor： Robert DiFazio ,  Jung-Lin Pan ,  Bin Li ,  Mihaela Beluri

IPC: H03H7/30 ,  H04B1/00

CPC classification number: H04L25/03012 ,  H04L25/0206 ,  H04L2025/03605

Abstract: A block linear equalizer (BLE) using an approximate Cholesky decomposition is disclosed. The BLE includes channel estimators, a channel monitor unit, a noise power estimator, a parameter selection unit and an approximate Cholesky processor. The channel estimator generates a channel estimate vector from received samples. The channel monitor unit generates a first channel monitor signal for a truncated channel estimate vector and a second channel monitor signal. The noise power estimator estimates a noise power of the received samples. The parameter selection unit selects parameters for approximate Cholesky decomposition based on the first and second channel monitor signals. The approximate Cholesky processor performs block linear equalization on the received samples based on approximate Cholesky decomposition.

Abstract translation: 公开了使用近似Cholesky分解的块线性均衡器（BLE）。 BLE包括信道估计器，信道监视器单元，噪声功率估计器，参数选择单元和近似的Cholesky处理器。 信道估计器从接收样本生成信道估计向量。 信道监视器单元产生用于截断的信道估计向量和第二信道监视信号的第一信道监视信号。 噪声功率估计器估计接收样本的噪声功率。 参数选择单元基于第一和第二通道监视信号选择近似Cholesky分解的参数。 大约Cholesky处理器基于近似Cholesky分解对接收到的样本执行块线性均衡。

公开(公告)号：US20070064665A1

公开(公告)日：2007-03-22

申请号：US11507712

申请日：2006-08-21

Applicant: Guodong Zhang ,  Jung-Lin Pan ,  Yingming Tsai

Inventor： Guodong Zhang ,  Jung-Lin Pan ,  Yingming Tsai

IPC: H04J1/00

CPC classification number: H04W72/1226 ,  H04L1/188 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/006 ,  H04L5/023 ,  H04L27/2602 ,  H04W8/26 ,  H04W52/08 ,  H04W52/146 ,  H04W52/16 ,  H04W52/248 ,  H04W52/48 ,  H04W52/50 ,  H04W72/02 ,  H04W72/0406 ,  H04W72/0413 ,  H04W72/042 ,  H04W74/004 ,  H04W74/0833 ,  H04W74/0866

Abstract: A method and apparatus for accessing a contention-based uplink random access channel (RACH) in a single carrier frequency division multiple access (SC-FDMA) system are disclosed. A wireless transmit/receive unit (WTRU) randomly selects a RACH subchannel and a signature among a plurality of available RACH subchannels and signatures. The WTRU transmits a preamble using the selected signature via the selected RACH subchannel at a predetermined or computed transmission power. A base station monitors the RACH to detect the preamble and sends an acquisition indicator (AI) to the WTRU when a signature is detected on the RACH. When receiving a positive acknowledgement, the WTRU sends a message part to the base station. If receiving a negative acknowledgement or no response, the WTRU retransmits the preamble.

Abstract translation: 公开了一种在单载波频分多址（SC-FDMA）系统中访问基于竞争的上行随机接入信道（RACH）的方法和装置。 无线发射/接收单元（WTRU）在多个可用的RACH子信道和签名中随机选择RACH子信道和签名。 WTRU以预定或计算的传输功率经由所选择的RACH子信道使用所选择的签名来发送前导码。 当在RACH上检测到签名时，基站监视RACH以检测前导码，并将捕获指示符（AI）发送到WTRU。 当接收到肯定确认时，WTRU向基站发送消息部分。 如果接收到否定的确认或没有响应，则WTRU重传前导码。