公开(公告)号：NO20071317A

公开(公告)日：2007-03-12

申请号：NO20071317

申请日：2007-03-12

Applicant: INTERDIGITAL TECH CORP

Inventor： OLESEN ROBERT LIND ,  KOO CHANG-SOO ,  BULTAN AYKUT ,  HUANG YUEJIN ,  OZLUTURK FATIH ,  ZEIRA ELDAD ,  KWAK JAEYOUNG ,  PASAD KALPENDU R

IPC: H04J13/00 ,  H04J99/00 ,  H04B10/04 ,  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：CA2569641A1

公开(公告)日：2005-12-29

申请号：CA2569641

申请日：2005-05-31

Applicant: INTERDIGITAL TECH CORP

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

IPC: H04B1/707 ,  H04B7/204 ,  H04J3/00 ,  H04J11/00

公开(公告)号：AU2004219098A1

公开(公告)日：2004-09-23

申请号：AU2004219098

申请日：2004-03-12

Applicant: INTERDIGITAL TECH CORP

Inventor： DICK STEPHEN G ,  KWAK JAEYOUNG

IPC: H04J13/02

公开(公告)号：AU2003261194A1

公开(公告)日：2004-02-09

申请号：AU2003261194

申请日：2003-07-18

Applicant: INTERDIGITAL TECH CORP

Inventor： PAN JUNG-LIN ,  ZEIRA ARIELA ,  KWAK JAEYOUNG

IPC: H04B1/707 ,  H04B7/04 ,  H04B7/08 ,  H04L1/06 ,  H04L25/02 ,  H04L25/03 ,  H03D1/04 ,  H03K6/04 ,  H04B1/10 ,  H04L1/00 ,  H04L25/08 ,  H03D1/06 ,  H03K5/01

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.

公开(公告)号：CA2493195A1

公开(公告)日：2004-01-29

申请号：CA2493195

申请日：2003-07-18

Applicant: INTERDIGITAL TECH CORP

Inventor： ZEIRA ARIELA ,  KWAK JAEYOUNG ,  PAN JUNG-LIN

IPC: H04B1/707 ,  H04B7/04 ,  H04B7/08 ,  H04L1/06 ,  H04L25/02 ,  H04L25/03 ,  H03D1/04 ,  H04L1/00 ,  H03K5/01 ,  H03K6/04 ,  H03D1/06 ,  H04L25/08 ,  H04B1/10

Abstract: A plurality of data signals are received over an antenna array having a plurality of antenna elements. The data singals are transmitted over a share d spectrum in a wireless communication system. A signal having each of the dat a 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 (70) 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 (76) using the detected data for each antenna element. The interference cancelled result is subtracted (92) from the received signa l of each antenna element, producing an interference cancelled result for each antenna element. Data is successively detected for remaining groups using th e interference cancelled result for each antenna element.

公开(公告)号：NO339219B1

公开(公告)日：2016-11-14

申请号：NO20071317

申请日：2007-03-12

Applicant: INTERDIGITAL TECH CORP

Inventor： OLESEN ROBERT LIND ,  KOO CHANG-SOO ,  BULTAN AYKUT ,  HUANG YUEJIN ,  OZLUTURK FATIH ,  ZEIRA ELDAD ,  KWAK JAEYOUNG ,  PASAD KALPENDU R

IPC: H04J99/00 ,  H04L27/08

公开(公告)号：HK1175040A1

公开(公告)日：2013-06-21

申请号：HK13101882

申请日：2007-10-10

Applicant: INTERDIGITAL TECH CORP

Inventor： KWAK JAEYOUNG ,  OLESEN ROBERT LIND L ,  BULTAN AYKUT ,  ZEIRA ELDAD ,  KOO CHANG-SOO ,  OZLUTURK FATIH ,  HUANG YUEJIN ,  PASAD KALPENDU R R

IPC: H04B20060101 ,  H04J99/00 ,  H04L20060101

公开(公告)号：SG170650A1

公开(公告)日：2011-05-30

申请号：SG2009073610

申请日：2005-11-01

Applicant: INTERDIGITAL TECH CORP

Inventor： KWAK JAEYOUNG ,  KOO CHANG-SOO ,  OLESEN ROBERT LIND ,  BULTAN AYKUT ,  OZLUTURK FATIH

IPC: H04J99/00

Abstract: A method and apparatus for combining space-frequency block coding (SFBC), spatial multiplexing (SM) and beamforming in a multiple-input multiple-output (MIMO) orthogonal frequency division mutliplexing (OFDM) system. The system inlcudes a transmitter (110) with a plurality of transmit antennas (126) and a receiver (130) with a plurality of receive antennas (128). The transmitter generates generates at least one data stream and plurality of spatial streams (118). The number of generated spatial streams is based on the number of the transmit antennas and the number of the receive antennas. The transmitter determines a transmission scheme in accordance with at least one of SFBC (112), SM (114), and beam forming (122). The transmitter transmits data in the data stream to the receiver based on the selected transmission scheme.

公开(公告)号：SG155207A1

公开(公告)日：2009-09-30

申请号：SG2009053570

申请日：2005-08-11

Applicant: INTERDIGITAL TECH CORP

Inventor： KWAK JAEYOUNG ,  OLESEN ROBERT LIND ,  BULTAN AYKUT ,  ZEIRA ELDAD ,  KOO CHANG-SOO ,  OZLUTURK FATIH ,  HUANG YUEJIN ,  PASAD KALPENDU R

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：DE60327874D1

公开(公告)日：2009-07-16

申请号：DE60327874

申请日：2003-08-15

Applicant: INTERDIGITAL TECH CORP

Inventor： KWAK JAEYOUNG ,  HAIM JOHN W ,  ZEIRA ARIELA ,  PAN JUNG-LIN

IPC: G06F15/00 ,  H04B1/707 ,  H04J11/00