公开(公告)号：GEP20105003B

公开(公告)日：2010-06-10

申请号：GEAP2006010359

申请日：2006-04-07

Applicant: INTERDIGITAL TECH CORP

Inventor： BALDWIN KEITH RICHARD ,  ZEIRA ELDAD ,  CHA INHYOK

IPC: H04J99/00

Abstract: A method and apparatus for selecting an antenna mapping in multiple-in/multiple-out (MIMO) enabled wireless communication net¬works. A candidate set of currently available antenna mappings is determined based upon measured long term channel conditions. An antenna mapping is selected from the candidate set, and the mapping is calibrated with a selected antenna mapping of a receiving wireless transmit/receive unit (WTRU). When the selected mappings are calibrated, packet data transmission begins. In an alternative embodiment, a calibration training frame (CTF) is used to calibrate multiple antenna mappings simultaneously or sequentially. Also disclosed are physical layer and medium access control layer frame formats for imple¬menting antenna mapping selection according to the invention.

公开(公告)号：MX2009011766A

公开(公告)日：2010-01-14

申请号：MX2009011766

申请日：2008-04-29

Applicant: INTERDIGITAL TECH CORP

Inventor： CHITRAPU PRABHAKAR R ,  SHAH YOGENDRA C ,  CHA INHYOK ,  OLVERA-HERNANDEZ ULISES ,  SOMASUNDARAM SHANKAR ,  MUKHERJEE RAJAT P

IPC: H04W12/00 ,  H04W48/12 ,  H04W84/14 ,  H04W88/08

Abstract: Un dispositivo de comunicación inalámbrica se configura como un nodo-B local (H) (e)NB) El (H) (e)NB) se configura para llevar a cabo una función de bloqueo para controlar la modificación de los parámetros controlados de usuario y portador, y también se configura para detectar un cambio en la ubicación.

公开(公告)号：AU2006235413B2

公开(公告)日：2009-10-22

申请号：AU2006235413

申请日：2006-04-07

Applicant: INTERDIGITAL TECH CORP

Inventor： ZEIRA ELDAD ,  BALDWIN KEITH RICHARD ,  CHA INHYOK

IPC: H04B1/00 ,  H04J99/00

Abstract: The method involves selecting an antenna mapping at a transmitting wireless transmit/receive unit (Tx WTRU) from a candidate set of currently available antenna mappings. Another antenna mapping is selected at a receiving (Rx WTRU) from the candidate set of currently available antenna mappings. A determination is made whether the currently selected antenna mappings are calibrated at the Tx WTRU. The selected antenna mappings are calibrated if it is determined that the selected antenna mappings are not calibrated. An independent claim is also included for a wireless communication system.

公开(公告)号：MX2009005893A

公开(公告)日：2009-08-13

申请号：MX2009005893

申请日：2007-12-04

Applicant: INTERDIGITAL TECH CORP

Inventor： GRANDHI SUDHEER A ,  CHA INHYOK ,  ZUNIGA JUAN CARLOS ,  SAMMOUR MOHAMMED ,  LIVET CATHERINE M

IPC: H04W72/04 ,  H04W88/16 ,  H04W74/04 ,  H04W88/18

Abstract: Una comunicación de banda ultra ancha de la unidad transmisora/receptora inalámbrica (WTRU) incluye un transmisor configurado para transmitir un primer indicador de una transmisión de banda múltiple de radio, y un receptor configurado para recibir un segundo indicador de una transmisión de banda múltiple de radio.

公开(公告)号：AU2009202240A1

公开(公告)日：2009-06-25

申请号：AU2009202240

申请日：2009-06-05

Applicant: INTERDIGITAL TECH CORP

Inventor： ROY VINCENT ,  CHANDRA ARTY ,  MARINIER PAUL ,  CHA INHYOK

IPC: H04B1/38 ,  H04B17/00

公开(公告)号：AU2005285274B2

公开(公告)日：2009-03-05

申请号：AU2005285274

申请日：2005-09-07

Applicant: INTERDIGITAL TECH CORP

Inventor： ROY VINCENT ,  CHANDRA ARTY ,  CHA INHYOK ,  MARINIER PAUL

IPC: H04B1/38 ,  H04B17/00

Abstract: A first Institute of Electrical and Electronics Engineers (IEEE) 802.11 station ( STA ) for exchanging antenna capability information, the first IEEE 802.11 STA comprising:a transmitter configured to transmit a probe request frame that contains a first antenna capability information element that indicates a plurality of antenna capabilities of the first IEEE 802.11 STA ; anda receiver configured to receive a probe response frame that contains a second antenna capability information element that indicates a plurality of antenna capabilities of a second IEEE 802.11 STA .

公开(公告)号：AU2008247853A1

公开(公告)日：2008-11-13

申请号：AU2008247853

申请日：2008-04-29

Applicant: INTERDIGITAL TECH CORP

Inventor： CHITRAPU PRABHAKAR R ,  CHA INHYOK ,  SHAH YOGENDRA C ,  OLVERA-HERNANDEZ ULISES ,  SOMASUNDARAM SHANKAR ,  MUKHERJEE RAJAT P

IPC: H04W48/12 ,  H04W12/00 ,  H04W84/14 ,  H04W88/08

Abstract: A wireless communication device is configured as an in-home node-B (H(e)NB). The H(e)NB is configured to perform a locking function to control modification of carrier and user controlled parameters, and also configured to detect a change in location.

公开(公告)号：CA2651436A1

公开(公告)日：2008-08-21

申请号：CA2651436

申请日：2007-05-04

Applicant: INTERDIGITAL TECH CORP

Inventor： SHAH YOGENDRA C ,  CHA INHYOK ,  SINGHAL AMIT X

IPC: H04L9/32 ,  G06F21/00

Abstract: The present invention discloses several methods to strengthen the integri ty of entities, messages, and processing related to content distribution as defined by the Open Mobile Alliance (OMA) Digital Rights Management (DRM). T he methods use techniques related to the Trusted Computing Group (TCG) speci fications. A first embodiment uses TCG techniques to verify platform and DRM software integrity or trustworthiness, both with and without modifications to the DRM rights object acquisition protocol (ROAP) and DRM content format specifications. A second embodiment uses TCG techniques to strengthen the in tegrity of ROAP messages, constituent information, and processing without ch anging the existing ROAP protocol. A third embodiment uses TCG techniques to strengthen the integrity of the ROAP messages, information, and processing with some changes to the existing ROAP protocol.

公开(公告)号：AU2008211235A1

公开(公告)日：2008-08-07

申请号：AU2008211235

申请日：2008-01-25

Applicant: INTERDIGITAL TECH CORP

Inventor： YE CHUNXUAN ,  SHAH YOGENDRA C ,  CHA INHYOK

IPC: H04L29/06 ,  H04W8/08 ,  H04W12/02 ,  H04W12/08

Abstract: A method and apparatus for securing location information and access control using the location information are disclosed. A wireless transmit/receive unit (WTRU) includes a location sensing entity and a subscriber identity module (SIM). The location sensing entity generates location information of the WTRU and the location information is embedded in a message in an SIM. A trusted processing module in the WTRU verifies integrity of the location information. The trusted processing module may be on the SIM. The location information may be physical location information or contextual location-related information. The trusted processing module is configured to cryptographically secure and bind the location information to the WTRU, and verify trust metrics of an external entity prior to granting an access to the location information or accepting information from the external entity. The trusted processing module may be a trusted computing group (TCG) trusted platform module (TPM) or mobile trusted module (MTM). The location information may be used for an authentication purpose or access control. The location information may be combined with time information.

公开(公告)号：BRPI0515679A

公开(公告)日：2008-07-29

申请号：BRPI0515679

申请日：2005-09-19

Applicant: INTERDIGITAL TECH CORP

Inventor： CHA INHYOK ,  LI YINGXUE

IPC: H04B7/06 ,  H04B7/08 ,  H04W16/28 ,  H04W76/02 ,  H04W84/12

Abstract: A communications device with a switched beam antenna operates in a wireless local area network (WLAN) that includes a plurality of transmitters. The switched beam antenna generates a plurality of antenna beams. A method for operating the communications device includes receiving signals from the plurality of transmitters operating within the WLAN, identifying the received signals comprising medium access control (MAC) information, and determining a quality metric for each received signal comprising MAC information. A transmitter is selected based on the quality metrics. The antenna beams are scanned for receiving from the selected transmitter the signals comprising MAC information. A quality metric associated with each scanned antenna beam is determined. One of the scanned antenna beams is then selected for communicating with the selected transmitter based on the quality metrics.