公开(公告)号：CA2636157C

公开(公告)日：2016-06-07

申请号：CA2636157

申请日：2007-01-10

Applicant: INTERDIGITAL TECH CORP

Inventor： OLESEN ROBERT L ,  ZEIRA ELDAD M ,  VOLTZ PETER J ,  YANG YONGWEN ,  DAI QINGYUAN ,  KOO CHANG-SOO ,  LU I-TAI ,  TSAI KUN-JU

IPC: H04L1/00 ,  H04B7/06 ,  H04L1/06

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：CA2680153C

公开(公告)日：2016-05-03

申请号：CA2680153

申请日：2008-03-07

Applicant: INTERDIGITAL TECH CORP

Inventor： SHIN SUNG-HYUK ,  LIN ZINAN ,  GRIECO DONALD M ,  OLESEN ROBERT L

IPC: H04W52/06 ,  H04W52/08 ,  H04W52/10 ,  H04W52/14 ,  H04W52/24

Abstract: A method and apparatus are disclosed comprising a combined open loop/closed loop uplink power control scheme for E-UTRA. The combined open and closed loop method for UL intra-cell PC controls the wireless transmit receive unit (WTRU) transmit power spectral density (PSD), PSDTx, (e.g. power per RB).

公开(公告)号：BRPI0808250A2

公开(公告)日：2014-07-29

申请号：BRPI0808250

申请日：2008-03-14

Applicant: INTERDIGITAL TECH CORP

Inventor： HAGHIGHAT AFSHIN ,  OLESEN ROBERT L ,  ZHANG GUODONG ,  LIN ZINAN

IPC: H04W28/06 ,  H04W72/04

公开(公告)号：BRPI0715323A2

公开(公告)日：2013-07-09

申请号：BRPI0715323

申请日：2007-09-26

Applicant: INTERDIGITAL TECH CORP

Inventor： SHIN SUNG-HYUK ,  GRIECO DONALD M ,  OLESEN ROBERT L

IPC: H04B7/005

Abstract: A combined open loop and closed loop (channel quality indicator (CQI)-based) transmit power control (TPC) scheme with interference mitigation for a long term evolution (LTE) wireless transmit/receive unit (WTRU) is disclosed. The transmit power of the WTRU is derived based on a target signal-to-interference noise ratio (SINR) and a pathloss value. The pathloss value pertains to the downlink signal from a serving evolved Node-B (eNodeB) and includes shadowing. An interference and noise value of the serving eNodeB is included in the transmit power derivation, along with an offset constant value to adjust for downlink (DL) reference signal power and actual transmit power. A weighting factor is also used based on the availability of CQI feedback.

公开(公告)号：BRPI0714275A2

公开(公告)日：2013-04-16

申请号：BRPI0714275

申请日：2007-08-02

Applicant: INTERDIGITAL TECH CORP

Inventor： OLESEN ROBERT L ,  GRIECO DONALD M ,  PAN KYLE JUNG-LIN

IPC: H04B7/04

公开(公告)号：AU2008276034B2

公开(公告)日：2012-05-03

申请号：AU2008276034

申请日：2008-07-17

Applicant: INTERDIGITAL TECH CORP

Inventor： PAN KYLE JUNG-LIN ,  OLESEN ROBERT L

IPC: H04B7/06

Abstract: A wireless communication method and apparatus for encoding and decoding beamforming vectors are disclosed. A base station sends explicit signaling for a beamforming vector of a wireless transmit/receive unit (WTRU) and implicit signaling for beamforming vectors of interfering WTRUs. Each WTRU uses its own beam forming vector to estimate the beamforming vectors of each of the other WTRUs.

公开(公告)号：RU2437211C2

公开(公告)日：2011-12-20

申请号：RU2009136985

申请日：2008-03-07

Applicant: INTERDIGITAL TECH CORP

Inventor： SHIN SUNG-KHIUK ,  LIN TSZYNAN ,  GRIEKO DONAL D M ,  OLESEN ROBERT L

IPC: H04B7/005

Abstract: Изобретениеотноситсяк системамбеспроводнойсвязи. Раскрываютсяспособи устройство, содержащиеобъединеннуюсхемууправлениямощностьювосходящейлиниисвязив замкнутоми разомкнутомконтуредля E-UTRA. Объединенныйспособразомкнутогои замкнутогоконтурадлявнутрисотовогоуправлениямощностью (PC) ввосходящейлиниисвязи (UL) управляетспектральнойплотностьюмощностипередачибеспроводногомодуляприема/передачи. Техническимрешениемявляетсяусовершенствованиеспособауправлениямощностьюпередачи. 2 н. и 9 з.п. ф-лы, 8 ил.

公开(公告)号：MY143899A

公开(公告)日：2011-07-29

申请号：MYPI20053749

申请日：2005-08-11

Applicant: INTERDIGITAL TECH CORP

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

IPC: H04J99/00 ,  H04L27/08

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-BEAM FORMING 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：BRPI0706987A2

公开(公告)日：2011-04-12

申请号：BRPI0706987

申请日：2007-02-08

Applicant: INTERDIGITAL TECH CORP

Inventor： PAN JUNG-LIN ,  GRIECO DONALD M ,  OLESEN ROBERT L ,  LI YINGXUE

IPC: H04L1/00 ,  H04B7/06 ,  H04L5/02 ,  H04L27/26

公开(公告)号：MX2009009809A

公开(公告)日：2009-11-09

申请号：MX2009009809

申请日：2008-03-14

Applicant: INTERDIGITAL TECH CORP

Inventor： GRIECO DONALD ,  TSAI ALLAN Y ,  OLESEN ROBERT L ,  ZHANG GUODONG

IPC: H04L5/02

Abstract: Método para transmitir la información de reatroalimentación para una unidad de transmisión/recepción inalámbrica (WRTU) incluye la multiplexación de la información de retroalimentación con un canal compartido de enlace ascendente, el mapeo de la información de retroalimentación multiplexada a símbolos OFDM y la transmisión de la información de retroalimentación a un Nodo B (eNB). El método también incluye la multiplexación de la información de retroalimentación con el canal compartido de enlace ascendente utilizando multiplexación de división de frecuencias ortogonal (OFDM), y la distribución de la información de retroalimentación mapeada de manera equidistante a través de transmisión de banda ancha.