公开(公告)号：AU2012205274B2

公开(公告)日：2013-06-20

申请号：AU2012205274

申请日：2012-07-24

Applicant: INTERDIGITAL TECH CORP

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

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). H(e)NB is configured to perform a locking function to control modification of 5 carrier and user controlled parameters, and also configured to detect a change in location.

公开(公告)号：AU2009202240B2

公开(公告)日：2012-07-05

申请号：AU2009202240

申请日：2009-06-05

Applicant: INTERDIGITAL TECH CORP

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

IPC: H04B1/38 ,  H04B17/00

Abstract: A method for implementing a smart antenna in establishing association between a station (STA) and an access point (AP) in a wireless local area network begins by transmitting a beacon frame by the AP on one antenna beam. The beacon frame is received at the STA, which measures the signal quality of the beacon frame. The AP switches to a different antenna beam and repeats the method until the beacon frame has been transmitted on all antenna beams. The STA associates to the AP that transmits the beacon frame with the highest signal quality on one of its antenna beams. A similar method may be used in which the STA sends a probe request frame to the AP, which then responds with probe response frames sent on multiple antenna beams. 112\ 11 114 - - -- ----- ' 124 - * 116-'~ 706 --- AA PROBE REQUEST SIFS

公开(公告)号：AU2008211235B2

公开(公告)日：2012-01-19

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：AU2007328246B2

公开(公告)日：2010-09-23

申请号：AU2007328246

申请日：2007-12-04

Applicant: INTERDIGITAL TECH CORP

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

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

Abstract: An ultra wide band wireless transmit/receive unit (WTRU) communication includes a transmitter configured to transmit a first indicator of a multi-radio band transmission, and a receiver configured to receive a second indicator of a multi-radio band transmission.

公开(公告)号：SG161241A1

公开(公告)日：2010-05-27

申请号：SG2010023927

申请日：2006-04-07

Applicant: INTERDIGITAL TECH CORP

Inventor： CHA INHYOK ,  ZEIRA ELDAD ,  BALDWIN KEITH RICHARD

IPC: H04J99/00

Abstract: A method and apparatus for selecting an antenna mapping in multiple- in/multiple-out (MIMO) enabled wireless communication networks. 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 implementing antenna mapping selection according to the invention.

公开(公告)号：AT467275T

公开(公告)日：2010-05-15

申请号：AT06740853

申请日：2006-04-07

Applicant: INTERDIGITAL TECH CORP

Inventor： BALDWIN KEITH RICHARD ,  ZEIRA ELDAD ,  CHA INHYOK

IPC: H04B1/00 ,  H04B7/04 ,  H04B7/06 ,  H04B7/08 ,  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：DE602005018196D1

公开(公告)日：2010-01-21

申请号：DE602005018196

申请日：2005-06-06

Applicant: INTERDIGITAL TECH CORP

Inventor： IACONO ANA LUCIA ,  CHANDRA ARTY ,  STEINBACH DANIEL P ,  CHA INHYOK ,  OTTO JAMES C ,  JOHNSON KEVIN P ,  GUTOWSKI STANLEY ,  LIU KAI ,  CUFFARO ANGELO ,  STERN-BERKOWITZ JANET

IPC: H04B1/06 ,  H04B1/10 ,  H04B15/00 ,  H04W16/24

Abstract: An access point operates in an 802.11 wireless communication network communicating with a client station, and includes a smart antenna for generating directional antenna beams and an omni-directional antenna beam. An antenna steering algorithm scans the directional antenna beams and the omni-directional antenna beam for receiving signals from the client station. The signals received via each scanned antenna beam are measured, and one of the antenna beams is selected based upon the measuring for communicating with the client station. The selected antenna beam is preferably a directional antenna beam. Once the directional antenna beam has been selected, there are several usage rules for exchanging data with the client station. The usage rules are directed to an active state of the access point, which includes a data transmission mode and a data reception mode.

公开(公告)号：AR066065A2

公开(公告)日：2009-07-22

申请号：ARP080101544

申请日：2008-04-15

Applicant: INTERDIGITAL TECH CORP

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

IPC: H04B1/38

Abstract: Una unidad inalámbrica de transmision/recepcion (WTRU) configurada para comunicaciones inalámbricas que usan una antena inteligente, WTRU que comprende: un receptor configurado para recibir un indicador de antena; una antena inteligente para generaruna antena; y un transmisor, acoplado operativamente a la antena inteligente, configurado para transmitir un paquete que incluye un cabecera de protocolo de convergencia de capa física ( PLCP) , incluyendo el encabezado PLCP a dicho indicador deantena, en la antena indicada por dicho indicador de antena. También se divulga un método para usar con una antena inteligente en un sistema de comunicacion inalámbrica, un punto de acceso (AP) configurado para comunicaciones inalámbricas y unmétodo para usar en un sistema de comunicacion inalámbrica.

公开(公告)号：AU2007347234A1

公开(公告)日：2008-08-21

申请号：AU2007347234

申请日：2007-05-04

Applicant: INTERDIGITAL TECH CORP

Inventor： SHAH YOGENDRA C ,  CHA INHYOK

IPC: G06F12/14 ,  H04L9/00

Abstract: The present invention discloses several methods to strengthen the integrity of entities, messages, and processing related to content distribution as defined by the Open Mobile Alliance (OMA) Digital Rights Management (DRM). The methods use techniques related to the Trusted Computing Group (TCG) specifications. 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 integrity of ROAP messages, constituent information, and processing without changing 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：CA2676450A1

公开(公告)日：2008-08-07

申请号：CA2676450

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 contr ol using the location information are disclosed. A wireless transmit/receive unit (WTRU) includes a location sensing entity and a subscriber identity mo dule (SIM). The location sensing entity generates location information of th e WTRU and the location information is embedded in a message in an SIM. A tr usted processing module in the WTRU verifies integrity of the location infor mation. The trusted processing module may be on the SIM. The location inform ation may be physical location information or contextual location-related in formation. The trusted processing module is configured to cryptographically secure and bind the location information to the WTRU, and verify trust metri cs of an external entity prior to granting an access to the location informa tion or accepting information from the external entity. The trusted processi ng module may be a trusted computing group (TCG) trusted platform module (TP M) 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.