公开(公告)号：WO2008021008A2

公开(公告)日：2008-02-21

申请号：PCT/US2007/017227

申请日：2007-08-02

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  GRIECO, Donald, M. ,  PAN, Kyle, Jung-Lin

Inventor： GRIECO, Donald, M. ,  PAN, Kyle, Jung-Lin

CPC classification number: H04B7/0452 ,  H04B7/0617 ,  H04B7/0669 ,  H04B7/0671

Abstract: A method and system for implementing multi-user virtual multiple-input multiple-output (MIMO) techniques for wireless transmit/receive units (WTRUs) having one or more antennas are disclosed. The system includes a base station and at least one WTRU having at least two antennas. The number of antennas of the base station is not less than the number of antennas of any of the WTRUs. The base station generates a channel matrix for the WTRUs and processes received signals from the WTRUs based on a measurement of the channel matrix. The WTRUs may perform transmit precoding or eigen-beamforming using the channel matrix information. The WTRUs may also perform transmit diversity.

Abstract translation: 公开了用于实现具有一个或多个天线的无线发射/接收单元（WTRU）的多用户虚拟多输入多输出（MIMO）技术的方法和系统。 该系统包括基站和具有至少两个天线的至少一个WTRU。 基站的天线数量不少于任何WTRU的天线数量。 基站基于信道矩阵的测量结果为WTRU生成信道矩阵并处理来自WTRU的接收信号。 WTRU可以使用信道矩阵信息来执行发射预编码或本征波束成形。 WTRU也可以执行发射分集。

公开(公告)号：WO2006052423A2

公开(公告)日：2006-05-18

申请号：PCT/US2005/037998

申请日：2005-10-20

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  KWAK, Jaeyoung ,  GRIECO, Donald, M. ,  PAN, Jung-Lin ,  ZEIRA, Ariela

Inventor： KWAK, Jaeyoung ,  GRIECO, Donald, M. ,  PAN, Jung-Lin ,  ZEIRA, Ariela

IPC: H04B7/00

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). The present invention resolves SF ambiguity in the downlink of TSM. 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: 一种使用盲代码检测（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。 候选代码表包括旨在用于预期的WTRU和其他WTRU的信道化码。 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）。 本发明解决了TSM下行链路中的SF模糊性。 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的性能被保留在其他WTRU的SF模糊度上。

公开(公告)号：WO2005125068A3

公开(公告)日：2006-04-27

申请号：PCT/US2005018961

申请日：2005-05-31

Applicant: INTERDIGITAL TECH CORP ,  PAN JUNG-LIN ,  KWAK JAEYOUNG ,  GRIECO DONALD M

Inventor： PAN JUNG-LIN ,  KWAK JAEYOUNG ,  GRIECO DONALD M

IPC: H04J3/00 ,  H04J11/00

CPC classification number: H04J13/0044 ,  H04B1/7105

Abstract: A method and apparatus is disclosed for reducing multi-user processing at the receiver (22) in wireless communication systems. Detected codes (32) are grouped according to channel impulse response and a parent code (36) is identified for each group of detected codes. A matrix A (40) is constructed and joint detection (42) is performed using the identified parent codes. Data symbols of the detected codes are obtained from the data symbols of the identified parent codes.

Abstract translation: 公开了用于减少无线通信系统中的接收机（22）处的多用户处理的方法和装置。 检测码（32）根据信道脉冲响应进行分组，并为每组检测到的码识别父代码（36）。 构建矩阵A（40），并使用所识别的母代码进行联合检测（42）。 检测到的代码的数据符号从所识别的母代码的数据符号获得。

公开(公告)号：WO2005125068A2

公开(公告)日：2005-12-29

申请号：PCT/US2005/018961

申请日：2005-05-31

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  PAN, Jung-Lin ,  KWAK, Jaeyoung ,  GRIECO, Donald, M.

Inventor： PAN, Jung-Lin ,  KWAK, Jaeyoung ,  GRIECO, Donald, M.

IPC: H04J3/00

CPC classification number: H04J13/0044 ,  H04B1/7105

Abstract: A method and apparatus is disclosed for reducing multi-user processing at the receiver in wireless communication systems. Detected codes are grouped according to channel impulse response and a parent code is identified for each group of detected codes. A matrix A is constructed and joint detection is performed using the identified parent codes. Data symbols of the detected codes are obtained from the data symbols of the identified parent codes.

Abstract translation: 公开了用于减少无线通信系统中接收机处的多用户处理的方法和装置。 检测到的代码根据信道脉冲响应进行分组，并为每组检测到的代码识别父代码。 构建矩阵A，并使用所识别的父代码执行联合检测。 检测到的代码的数据符号从所识别的母代码的数据符号获得。

公开(公告)号：WO2004102616A3

公开(公告)日：2005-04-21

申请号：PCT/US2004011606

申请日：2004-04-16

Applicant: INTERDIGITAL TECH CORP ,  GRIECO DONALD M

Inventor： GRIECO DONALD M

IPC: H04J13/00 ,  H04L1/00 ,  H04W36/18 ,  H04B7/216

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：WO2004095765A2

公开(公告)日：2004-11-04

申请号：PCT/US2004008160

申请日：2004-03-16

Applicant: INTERDIGITAL TECH CORP ,  YANG RUI ,  GRIECO DONALD M ,  KAZAKEVICH LEONID

Inventor： YANG RUI ,  GRIECO DONALD M ,  KAZAKEVICH LEONID

IPC: H04B17/40 ,  H03G3/30 ,  H04L5/14 ,  H04L

CPC classification number: H03G3/3052 ,  H03G3/3036 ,  H03G3/3042 ,  H03G3/3047 ,  H04L5/1484 ,  H04M3/40

Abstract: In a time-division duplex (TDD) system, a reliable initialization scheme that is applicable to an automatic gain controller (AGC) at a base station is implemented in various forms depending on the availability of certain information such as signal-to-interference ratio (SIR), spreading factors and other parameters. A more accurate estimation of the initial control word of a gain-adjustable amplifier for one or more time slots is implemented. The scheme is applicable to AGC initialization for each time slot of the TDD system, but is also applicable to other systems of transmission, without limitation.

Abstract translation: 在时分双工（TDD）系统中，可以根据某些信息的可用性（例如信号干扰比）来以各种形式实现适用于基站处的自动增益控制器（AGC）的可靠的初始化方案 （SIR），扩散因子等参数。 实现了用于一个或多个时隙的增益可调放大器的初始控制字的更准确的估计。 该方案适用于TDD系统的每个时隙的AGC初始化，但也适用于其他传输系统，但不限于此。

公开(公告)号：WO2004066543A2

公开(公告)日：2004-08-05

申请号：PCT/US2004/001963

申请日：2004-01-23

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  DEMIR, Alpaslan ,  GRIECO, Donald, M. ,  HAIM, John W. ,  BEDNARZ, Andrew, F.

Inventor： DEMIR, Alpaslan ,  GRIECO, Donald, M. ,  HAIM, John W. ,  BEDNARZ, Andrew, F.

IPC: H04L

CPC classification number: H04W48/10 ,  H04W48/02 ,  H04W48/16 ,  H04W56/00

Abstract: A method and system for performing initial cell search in wireless communication system wherein unsuitable cells are excluded is disclosed. Stored frequencies are searched exhaustively and initial frequencies are search non-exhaustively. Initial frequencies may be searched exhaustively in certain circumstances. When performing exhaustive initial cell searches, primary synchronization codes that lead to unsuitable cells are excluded from subsequent initial cell searches performed on the same frequency.

Abstract translation: 公开了一种用于在无线通信系统中执行初始小区搜索的方法和系统，其中不适合的小区被排除。 存储的频率被彻底搜索，并且初始频率被非穷举地搜索。 在某些情况下可以彻底地搜索初始频率。 当执行穷举的初始小区搜索时，导致不合适小区的主同步码被从在相同频率上执行的后续初始小区搜索中排除。

公开(公告)号：WO2010107885A2

公开(公告)日：2010-09-23

申请号：PCT/US2010/027624

申请日：2010-03-17

Applicant: INTERDIGITAL PATENT HOLDINGS, INC. ,  SHIN, Sung-Hyuk ,  PIETRASKI, Philip, J. ,  ROY, Vincent ,  ZHANG, Guodong ,  PAN, Kyle Jung-Lin ,  GRIECO, Donald, M. ,  STERN-BERKOWITZ, Janet, A.

Inventor： SHIN, Sung-Hyuk ,  PIETRASKI, Philip, J. ,  ROY, Vincent ,  ZHANG, Guodong ,  PAN, Kyle Jung-Lin ,  GRIECO, Donald, M. ,  STERN-BERKOWITZ, Janet, A.

IPC: H04L1/02

CPC classification number: H04W52/10 ,  H04B7/024 ,  H04B7/0413 ,  H04B7/0689 ,  H04L1/0003 ,  H04W52/146 ,  H04W52/242 ,  H04W52/40 ,  H04W52/42 ,  H04W72/0446 ,  H04W72/0473 ,  H04W76/27

Abstract: A method and apparatus for uplink power control in multiple-input multiple-output (MIMO) includes setting a transmit power level for a physical uplink shared channel (PUSCH) transmission.

Abstract translation: 一种用于多输入多输出（MIMO）中的上行链路功率控制的方法和装置，包括设置物理上行链路共享信道（PUSCH）传输的发射功率电平。

公开(公告)号：WO2010048178A1

公开(公告)日：2010-04-29

申请号：PCT/US2009/061321

申请日：2009-10-20

Applicant: INTERDIGITAL PATENT HOLDINGS, INC. ,  BALA, Erdem ,  ZHANG, Guodong ,  PIETRASKI, Philip, J. ,  SHIN, Sung-Hyuk ,  WANG, Peter, S. ,  RUDOLF, Marian ,  LEVY, Joseph, S. ,  GRIECO, Donald, M. ,  SOMASUNDARAM, Shankar ,  PAN, Kyle, Jung-Lin

Inventor： BALA, Erdem ,  ZHANG, Guodong ,  PIETRASKI, Philip, J. ,  SHIN, Sung-Hyuk ,  WANG, Peter, S. ,  RUDOLF, Marian ,  LEVY, Joseph, S. ,  GRIECO, Donald, M. ,  SOMASUNDARAM, Shankar ,  PAN, Kyle, Jung-Lin

IPC: H04W72/04

CPC classification number: H04W72/042 ,  H04L5/0007 ,  H04L5/0092 ,  H04L5/0094 ,  H04W48/12 ,  H04W52/34 ,  H04W72/02 ,  H04W72/04 ,  H04W84/042

Abstract: A method and apparatus for handling a control channel for carrier aggregation in wireless communications. The method includes determining which component carrier to listen to, detecting the downlink control channel, processing mapping information related to downlink and uplink transmissions and operating discontinuous reception with respect to carrier aggregation. The method also includes detecting a component carrier, determining the component carrier type and locating the anchor component carrier, if necessary, where the anchor component carrier carries the carrier aggregation information.

Abstract translation: 一种在无线通信中处理用于载波聚合的控制信道的方法和装置。 该方法包括确定哪个分量载波要监听，检测下行链路控制信道，处理与下行链路和上行链路传输相关的映射信息，以及对载波聚合进行不连续接收。 该方法还包括检测分量载波，确定分量载波类型并定位定位分量载波（如果需要），其中主分量载波承载载波聚合信息。

公开(公告)号：WO2010002772A2

公开(公告)日：2010-01-07

申请号：PCT/US2009/049025

申请日：2009-06-29

Applicant: INTERDIGITAL PATENT HOLDINGS, INC. ,  BALA, Erdem ,  SHIN, Sung-hyuk ,  PIETRASKI, Philip, J. ,  PAN, Kyle, Jung-lin ,  GRIECO, Donald, M.

Inventor： BALA, Erdem ,  SHIN, Sung-hyuk ,  PIETRASKI, Philip, J. ,  PAN, Kyle, Jung-lin ,  GRIECO, Donald, M.

IPC: H04B1/707 ,  H04B1/38

CPC classification number: H04B7/0452 ,  H04B7/0417 ,  H04B7/0626 ,  H04B7/0639 ,  H04B7/0654 ,  H04B7/0665

Abstract: Methods for signaling precoding matrices used at the Node-B for data transmission with multiple user-multiple in multiple out (MU-MIMO) wireless communications. Precoding vectors may be efficiently signaled between wireless transmit/receive units and base stations using control channels, reference signals and blind detection of the precoding information.

Abstract translation: 用于在多出（MU-MIMO）无线通信中具有多个用户多个的用于数据传输的节点B处使用的信令预编码矩阵的方法。 可以使用控制信道，参考信号和预编码信息的盲检测，在无线发射/接收单元和基站之间有效地发信号通知预编码矢量。