公开(公告)号：EP1661267A2

公开(公告)日：2006-05-31

申请号：EP04778880.7

申请日：2004-07-22

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： KOO, Chang-Soo ,  DENNEAN, Charles ,  SHIN, Sung-Hyuk

IPC: H04B7/216 ,  H04B7/00 ,  H04Q7/20

CPC classification number: H04W52/12 ,  H04L1/20 ,  H04W52/16 ,  H04W52/20 ,  H04W52/241 ,  H04W52/248

Abstract: A method for performing outer loop power control in a wireless communication system utilizing a plurality of transport channels begins by selecting an initial reference transport channel (TrCH) and a final reference TrCH. Outer loop power control is performed using the initial reference TrCH and then outer loop power control is performed using the final reference TrCH.

公开(公告)号：EP1649613A2

公开(公告)日：2006-04-26

申请号：EP04779315.3

申请日：2004-07-28

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： KOO, Chang-Soo ,  SHIN, Sung-Hyuk

IPC: H04B7/00 ,  H04Q7/20 ,  H01Q11/12

CPC classification number: H04W52/12

Abstract: A method for outer loop power control in a wireless communication system begins by determining if a cyclic redundancy check (CRC) is available. If the CRC is available, the method uses the CRC to calculate an adjustment for a target signal to interference ratio (SIR) for a coded composite transport channel (CCTrCH). If the CRC is not available, then quality measurements of the CCTrCH are taken. The quality measurements are used to calculate an adjustment for the target SIR, which is then updated.

公开(公告)号：EP1989806A2

公开(公告)日：2008-11-12

申请号：EP07717949.7

申请日：2007-01-10

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： OLESEN, Robert, L. ,  ZEIRA, Eldad, M. ,  VOLTZ, Peter, J. ,  YANG, Yongwen ,  DAI, Qingyuan ,  KOO, Chang-Soo ,  LU, I-Tai ,  TSAI, KunJun

IPC: H04L1/00 ,  H04L1/06 ,  H04B7/06

CPC classification number: H04L1/0643 ,  H04B7/0456 ,  H04B7/0619 ,  H04B7/0626 ,  H04B7/0669 ,  H04B7/0697 ,  H04B7/0837 ,  H04B7/0891 ,  H04B17/336 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0606 ,  H04L1/0625 ,  H04L1/0631 ,  H04L27/2626 ,  H04L27/2647 ,  H04W84/12

Abstract: A method and apparatus for implementing spatial processing with unequal modulation and coding schemes (MCSs) or stream-dependent MCSs are disclosed. Input data may be parsed into a plurality of data streams, and spatial processing is performed on the data streams to generate a plurality of spatial streams. An MCS for each data stream is selected independently. The spatial streams are transmitted via multiple transmit antennas. At least one of the techniques of space time block coding (STBC), space frequency block coding (SFBC), quasi-orthogonal Alamouti coding, time reversed space time block coding, linear spatial processing and cyclic delay diversity (CDD) may be performed on the data/spatial streams. An antennal mapping matrix may then be applied to the spatial streams. The spatial streams are transmitted via multiple transmit antennas. The MCS for each data stream may be determined based on a signal-to-noise ratio of each spatial stream associated with the data stream.

Abstract translation: 一种用于利用不对等的调制实现空间处理和编码方案（MCS）或从属流-的MCS的方法和装置是游离缺失盘。 输入数据可以被解析成数据流的多个，并且空间处理执行上的数据流，以生成空间流的复数。 每个数据流的MCS被选择unabhängig。 所述空间流是经由多个发射天线反mitted。 的空时块编码的技术（STBC），空间频率块编码（SFBC），准正交Alamouti编码，时反转空时分组编码，线性空间处理和循环延迟分集（CDD）的至少一个，可以执行上 数据/空间流。 然后将天线映射矩阵可以被应用到所述空间流。 所述空间流是经由多个发射天线反mitted。 在MCS为每个数据流可以被确定性开采基于与所述数据流相关联的每个空间流的信噪比。

公开(公告)号：EP1779623A2

公开(公告)日：2007-05-02

申请号：EP05785474.7

申请日：2005-08-11

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： KWAK, Jaeyoung ,  OLESEN, Robert, Lind ,  BULTAN, Aykut ,  ZEIRA, Eldad ,  KOO, Chang-Soo ,  OZLUTURK, Fatih ,  HUANG, Yuejin ,  PASAD, Kalpendu, R.

IPC: H04L27/08

CPC classification number: H04L1/0606 ,  H04B7/0417 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/066 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/006 ,  H04L27/156 ,  H04L27/2626 ,  H04L2027/0046 ,  Y02B70/30 ,  Y02D50/10

Abstract: The present invention is related to a method and apparatus for implementing space frequency block coding (SFBC) in an orthogonal frequency division multiplexing (OFDM) wireless communication system. The present invention is applicable to both a closed loop mode and an open loop mode. In the closed loop mode, power loading and eigen-beamforming are performed based on channel state information (CSI). A channel coded data stream is multiplexed into two or more data streams. Power loading is performed based on the CSI on each of the multiplexed data streams. SFBC encoding is performed on the data streams for each of the paired subcarriers. Then, eigen-beamforming is performed based on the CSI to distribute eigenbeams to multiple transmit antennas. The power loading may be performed on two or more SFBC encoding blocks or on each eigenmodes. Additionally, the power loading may be performed across subcarriers or subcarrier groups for weak eigenmodes.

Abstract translation: 本发明涉及用于在正交频分复用（OFDM）无线通信系统中实现空间频率块编码（SFBC）的方法和装置。 本发明适用于闭环模式和开环模式。 在闭环模式下，基于信道状态信息（CSI）执行功率加载和本征波束成形。 信道编码数据流被复用成两个或更多数据流。 基于每个复用数据流上的CSI执行功率加载。 对每个配对副载波的数据流执行SFBC编码。 然后，基于CSI执行特征波束形成以将特征波束分配到多个发射天线。 功率加载可以在两个或更多个SFBC编码块上或在每个本征模式上执行。 另外，功率负载可以在用于弱本征模式的副载波或副载波组之间执行。

公开(公告)号：EP1738482A2

公开(公告)日：2007-01-03

申请号：EP05713689.7

申请日：2005-02-17

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： KOO, Chang-Soo ,  DENNEAN, Charles

IPC: H04B7/00 ,  H04B1/00

CPC classification number: H04W52/362

Abstract: A method system and components for outer loop power control which compensates for changing channel conditions. A target metric, preferably target signal-to-interference ratio (SIR), is adjusted with differing step up and step down levels to converge on a relatively low steady state level of step up and step down target metric adjustments. The initial target SIR remains fixed during an inner loop settling state, followed by incremental target SIR adjustments during a transient state, and smaller incremental target SIR adjustments in a steady state. Step sizes of the adjustments are preferably based on the target block error rate (BLER) and the number of errors detected within predetermined time intervals.

公开(公告)号：EP3059890B1

公开(公告)日：2018-09-26

申请号：EP16165127.8

申请日：2007-01-10

Applicant: InterDigital Technology Corporation

Inventor： OLESEN, Robert L. ,  ZEIRA, Eldad ,  VOLTZ, Peter J. ,  YANG, Yongwen ,  DAI, Qingyuan ,  KOO, Chang-Soo ,  LU, I-Tai ,  TSAI, KunJun

IPC: H04L1/00 ,  H04L1/06 ,  H04B7/06 ,  H04B7/08 ,  H04L27/26

CPC classification number: H04L1/0643 ,  H04B7/0456 ,  H04B7/0619 ,  H04B7/0626 ,  H04B7/0669 ,  H04B7/0697 ,  H04B7/0837 ,  H04B7/0891 ,  H04B17/336 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0606 ,  H04L1/0625 ,  H04L1/0631 ,  H04L27/2626 ,  H04L27/2647 ,  H04W84/12

Abstract: A method and apparatus for implementing spatial processing with unequal modulation and coding schemes (MCSs) or stream-dependent MCSs are disclosed. Input data may be parsed into a plurality of data streams, and spatial processing is performed on the data streams to generate a plurality of spatial streams. An MCS for each data stream is selected independently. The spatial streams are transmitted via multiple transmit antennas. At least one of the techniques of space time block coding (STBC), space frequency block coding (SFBC), quasi-orthogonal Alamouti coding, time reversed space time block coding, linear spatial processing and cyclic delay diversity (CDD) may be performed on the data/spatial streams. An antennal mapping matrix may then be applied to the spatial streams. The spatial streams are transmitted via multiple transmit antennas. The MCS for each data stream may be determined based on a signal-to-noise ratio of each spatial stream associated with the data stream.

公开(公告)号：EP3059890A1

公开(公告)日：2016-08-24

申请号：EP16165127.8

申请日：2007-01-10

Applicant: InterDigital Technology Corporation

Inventor： OLESEN, Robert L. ,  ZEIRA, Eldad ,  VOLTZ, Peter J. ,  YANG, Yongwen ,  DAI, Qingyuan ,  KOO, Chang-Soo ,  LU, I-Tai ,  TSAI, KunJun

IPC: H04L1/00 ,  H04L1/06 ,  H04B7/06

CPC classification number: H04L1/0643 ,  H04B7/0456 ,  H04B7/0619 ,  H04B7/0626 ,  H04B7/0669 ,  H04B7/0697 ,  H04B7/0837 ,  H04B7/0891 ,  H04B17/336 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0606 ,  H04L1/0625 ,  H04L1/0631 ,  H04L27/2626 ,  H04L27/2647 ,  H04W84/12

Abstract: A method and apparatus for implementing spatial processing with unequal modulation and coding schemes (MCSs) or stream-dependent MCSs are disclosed. Input data may be parsed into a plurality of data streams, and spatial processing is performed on the data streams to generate a plurality of spatial streams. An MCS for each data stream is selected independently. The spatial streams are transmitted via multiple transmit antennas. At least one of the techniques of space time block coding (STBC), space frequency block coding (SFBC), quasi-orthogonal Alamouti coding, time reversed space time block coding, linear spatial processing and cyclic delay diversity (CDD) may be performed on the data/spatial streams. An antennal mapping matrix may then be applied to the spatial streams. The spatial streams are transmitted via multiple transmit antennas. The MCS for each data stream may be determined based on a signal-to-noise ratio of each spatial stream associated with the data stream.

Abstract translation: 一种用于利用不对等的调制实现空间处理和编码方案（MCS）或从属流-的MCS的方法和装置是游离缺失盘。 输入数据可以被解析成数据流的多个，并且空间处理执行上的数据流，以生成空间流的复数。 每个数据流的MCS被选择unabhängig。 所述空间流是经由多个发射天线反mitted。 的空时块编码的技术（STBC），空间频率块编码（SFBC），准正交Alamouti编码，时反转空时分组编码，线性空间处理和循环延迟分集（CDD）的至少一个，可以执行上 数据/空间流。 然后将天线映射矩阵可以被应用到所述空间流。 所述空间流是经由多个发射天线反mitted。 在MCS为每个数据流可以被确定性开采基于与所述数据流相关联的每个空间流的信噪比。

公开(公告)号：EP1779623B1

公开(公告)日：2010-01-20

申请号：EP05785474.7

申请日：2005-08-11

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： KWAK, Jaeyoung ,  OLESEN, Robert, Lind ,  BULTAN, Aykut ,  ZEIRA, Eldad ,  KOO, Chang-Soo ,  OZLUTURK, Fatih ,  HUANG, Yuejin ,  PASAD, Kalpendu, R.

IPC: H04L27/08

CPC classification number: H04L1/0606 ,  H04B7/0417 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/066 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/006 ,  H04L27/156 ,  H04L27/2626 ,  H04L2027/0046 ,  Y02B70/30 ,  Y02D50/10

Abstract: The present invention is related to a method and apparatus for implementing space frequency block coding (SFBC) in an orthogonal frequency division multiplexing (OFDM) wireless communication system. The present invention is applicable to both a closed loop mode and an open loop mode. In the closed loop mode, power loading and eigen-beamforming are performed based on channel state information (CSI). A channel coded data stream is multiplexed into two or more data streams. Power loading is performed based on the CSI on each of the multiplexed data streams. SFBC encoding is performed on the data streams for each of the paired subcarriers. Then, eigen-beamforming is performed based on the CSI to distribute eigenbeams to multiple transmit antennas. The power loading may be performed on two or more SFBC encoding blocks or on each eigenmodes. Additionally, the power loading may be performed across subcarriers or subcarrier groups for weak eigenmodes.

公开(公告)号：EP2062388A2

公开(公告)日：2009-05-27

申请号：EP07837312.3

申请日：2007-08-23

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： EL GAMAL, Hesham ,  BULTAN, Aykut ,  KOO, Chang-Soo

IPC: H04L1/06

CPC classification number: H04L1/0003 ,  H04L1/0606 ,  H04L1/0618 ,  H04L1/0625 ,  H04L1/0643 ,  H04L1/0656 ,  H04L1/0687 ,  H04L1/0693 ,  H04L1/1819

Abstract: The downlink (DL) communication of single channel codewords is supported by providing a multiple-input multiple-output (MIMO) transmitter and receiver. The transmitter includes NT transmit antennas for transmitting spatial streams to a receiver having NR receive antennas, a precoder and a space- time or space-frequency matrix construction unit in communication with the precoder and the transmit antennas. The space-time or space-frequency matrix construction unit constructs a matrix that defines a threaded algebraic space- time (TAST) codeword based on a number of virtual antennas, NV, and the number of transmit antennas, NT. The transmitter operates in an open loop mode when no feedback information from the receiver is available, a semi-open loop mode when channel rank information is available, and a closed loop mode when channel state information (CSI) is available. The receiver is configured to provide feedback to the transmitter on a per received spatial stream basis.

公开(公告)号：EP1570584A1

公开(公告)日：2005-09-07

申请号：EP03787086.2

申请日：2003-11-24

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： KOO, Chang-Soo ,  GRANDHI, Sudheer A. ,  MILLER, James, M. ,  SHIN, Sung-Hyuk

IPC: H04B7/00 ,  H04Q7/20

CPC classification number: H04W52/221 ,  H04W52/08 ,  H04W52/20 ,  H04W52/223 ,  H04W52/225 ,  H04W52/24

Abstract: A method, components and a system are provided for implementing power control for wireless communication transmissions that provides, inter alia, a remedy for the mismatch of initial transmission power (312) for NRT data by estimating a bias error (324) based and adjusting the transmission power by a compensation amount for an averaged bias error estimation (323) over all data set transmissions, such as sequential Temp-DCH allocations in a UMTS system. An alternative approach for a UMTS system estimates the bias error at a RNC based on an averaged transmit code power measurement by a base station (310) and applies a bias error compensation to the initial DL transmit power at the RNC.