公开(公告)号：NO20053912A

公开(公告)日：2005-08-22

申请号：NO20053912

申请日：2005-08-22

Applicant: INTERDIGITAL TECH CORP

Inventor： GRIECO DONALD M ,  HAIM JOHN W ,  CHITRAPU PRABHAKAR R ,  GUCCIONE LOUIS J ,  BEDNARZ ANDREW F ,  DEMIR ASPASLAN ,  PETRASKI PHILIP J

IPC: H04B1/707 ,  H04B7/26 ,  H04J3/06 ,  H04L7/02 ,  H04L7/10 ,  H04W48/16 ,  H04W56/00 ,  H04Q11/04

CPC classification number: H04B1/7083 ,  H04B1/70735 ,  H04B1/70755 ,  H04B1/709 ,  H04B2201/70701 ,  H04W48/16 ,  H04W56/00

公开(公告)号：CA2518476A1

公开(公告)日：2004-09-30

申请号：CA2518476

申请日：2004-03-12

Applicant: INTERDIGITAL TECH CORP

Inventor： AXNESS TIMOTHY A ,  GRIECO DONALD M ,  GUCCIONE LOUIS J ,  TYRA FRYDERYK ,  HAIM JOHN W

IPC: H03G3/00 ,  H03G3/20 ,  H03G3/30 ,  H04B7/005 ,  H04J3/00

Abstract: An automatic gain control (AGC) method according to the present invention applies an initial gain by a digital AGC circuit (13) in a timeslot is determined using a final calculated gain from the same timeslot in the previous frame together with an offset factor. An erase function (14) is activated for a given data sample block when the number of saturated data samples that are detected within the block (17) exceeds a threshold value. T he power measurement made by the AGC circuit and used to update the gain is adjusted based on the number of measured data samples that are saturated. These elements provide a gain limiting function and allows limiting of the dynamic range for further signal processing.

公开(公告)号：NO20035741L

公开(公告)日：2004-02-23

申请号：NO20035741

申请日：2003-12-19

Applicant: INTERDIGITAL TECH CORP

Inventor： CHITRAPU PRABHAKAR R ,  GUCCIONE LOUIS J ,  BEDNARZ ANDREW F

IPC: H04J3/12 ,  H04B1/7073 ,  H04B1/7083 ,  H04Q7/28 ,  H04Q7/34

Abstract: The system and method of the present invention establishes a communication link between a user equipment (UE) and a base station in a communication system having a plurality of base stations which each transmit a common primary synchronization code (PSC) in a primary synchronization channel in conjunction with a base station specific secondary synchronization code (SSC) within a system frame, which receives with the UE an input signal including the PSC and SSC from at least one of the base stations. The UE analyzes the input signal to detect any received PSCs within a selected time period which has duration corresponding to the length of a system frame and determining a relative location of a strongest PSC within the selected time period. The input signal is then processed to remove the PSC from at least the determined PSC location. A secondary synchronization code (SSC) is then detected for the determined location from the processed signal. The communication link is then established using the detected SSCs.

公开(公告)号：NO20035741D0

公开(公告)日：2003-12-19

申请号：NO20035741

申请日：2003-12-19

Applicant: INTERDIGITAL TECH CORP

Inventor： CHITRAPU PRABHAKAR ,  GUCCIONE LOUIS J ,  BEDNARZ ANDREW F

IPC: H04B1/7073 ,  H04B1/7083 ,  H04Q7/34 ,  H04J

Abstract: The system and method of the present invention establishes a communication link between a user equipment (UE) and a base station in a communication system having a plurality of base stations which each transmit a common primary synchronization code (PSC) in a primary synchronization channel in conjunction with a base station specific secondary synchronization code (SSC) within a system frame, which receives with the UE an input signal including the PSC and SSC from at least one of the base stations. The UE analyzes the input signal to detect any received PSCs within a selected time period which has duration corresponding to the length of a system frame and determining a relative location of a strongest PSC within the selected time period. The input signal is then processed to remove the PSC from at least the determined PSC location. A secondary synchronization code (SSC) is then detected for the determined location from the processed signal. The communication link is then established using the detected SSCs.

公开(公告)号：CA2451242A1

公开(公告)日：2003-01-03

申请号：CA2451242

申请日：2002-04-15

Applicant: INTERDIGITAL TECH CORP

Inventor： CHITRAPU PRABHAKAR R ,  GUCCIONE LOUIS J ,  BEDNARZ ANDREW F

IPC: H04B1/7073 ,  H04B1/7083 ,  H04Q7/34 ,  H04J3/06

Abstract: The system and method of the present invention establishes a communication link (Fig. 3) between a user equipment (4) and a base station (2) in a communication system having a plurality of base stations which each transmit a common primary synchronization code (PSC) in a primary synchronization chann el in conjunction with a base station specific secondary synchronization code within a system frame (Fig. 2), which receives with the UE an input signal including the PSC and SSC from at least one of the base stations. The UE analyzes the input signal to detect any received PSCs within a selected time period which has duration corresponding to the length of a system frame and determining a relative location of a strongest PSC (26) within the selected time period. The input signal is then processed to remove the PSC from at least the determined PSC location. A secondary synchronization code (SSC) is then detected for the determined location from the processed signal. The communication link is then established using the detected SSCs.

公开(公告)号：BRPI0719639A2

公开(公告)日：2014-01-07

申请号：BRPI0719639

申请日：2007-12-27

Applicant: INTERDIGITAL TECH CORP

Inventor： WANG PETER S ,  GUCCIONE LOUIS J ,  MILLER JAMES M ,  OLVERA-HERNANDEZ ULISES

IPC: H04W12/04 ,  H04W8/20 ,  H04W24/02 ,  H04W88/08 ,  H04W92/20

Abstract: Disclosed is method and apparatus for operation of a base station in wireless communications, including configuration of the base station for secure and authenticated communications with other base stations.

公开(公告)号：AU2010201991A1

公开(公告)日：2010-06-10

申请号：AU2010201991

申请日：2010-05-18

Applicant: INTERDIGITAL TECH CORP

Inventor： TERRY STEPHEN E ,  WANG PETER S ,  GUCCIONE LOUIS J

IPC: H04W12/10 ,  H04W12/12

Abstract: A wireless transmit/receive unit (WTRU) includes a control plane (C-plane) packet data convergence protocol (C-PDCP) layer which performs ciphering of a signaling message. The C-PDCP layer is activated upon power up of the WTRU and initial security parameters are loaded to the C-PDCP layer. An initial connection signaling message and a user identity are ciphered using the initial security parameters even before the WTRU is authenticated. The initial security parameters including a ciphering key (CK) may be generated from system information broadcast from the network. The CK may be a public key for asymmetric encryption, and may be selected from a public key set broadcast by or derived from the network system information. An index of the selected public key may be separately encoded. Alternatively, the index may be communicated by using a Diffie-Hellman key exchange method.

公开(公告)号：HK1129983A1

公开(公告)日：2009-12-11

申请号：HK09108451

申请日：2009-09-16

Applicant: INTERDIGITAL TECH CORP

Inventor： TERRY STEPHEN E ,  WANG PETER S ,  GUCCIONE LOUIS J

IPC: H04L20060101 ,  H04W20090101 ,  H04W12/10 ,  H04W12/12

Abstract: A wireless transmit/receive unit (WTRU) includes a control plane (C-plane) packet data convergence protocol (C-PDCP) layer which performs ciphering of a signaling message. The C-PDCP layer is activated upon power up of the WTRU and initial security parameters are loaded to the C-PDCP layer. An initial connection signaling message and a user identity are ciphered using the initial security parameters even before the WTRU is authenticated. The initial security parameters including a ciphering key (CK) may be generated from system information broadcast from the network. The CK may be a public key for asymmetric encryption, and may be selected from a public key set broadcast by or derived from the network system information. An index of the selected public key may be separately encoded. Alternatively, the index may be communicated by using a Diffie-Hellman key exchange method.

公开(公告)号：AR068682A1

公开(公告)日：2009-11-25

申请号：ARP080104360

申请日：2008-10-06

Applicant: INTERDIGITAL TECH CORP

Inventor： RATHI CHINMAYEE V ,  KUNTZE NICOLAI ,  SCHMIDT ANDREAS U ,  CHA INHYOK ,  GUCCIONE LOUIS J ,  SHAH YOGENDRA C

IPC: H04L12/56

Abstract: La presente invencion se refiere a un sistema de comunicacion inalámbrico. Los sistemas de teléfonos moviles del UMTS de 3G se basan en una tarjeta inteligente protegida, denominada tarjeta con circuito integrado del UMTS (UICC), que provee aplicaciones del modulo de identidad del abonado al UMTS (USIM) como una base o raíz de varias medidas de seguridad, las cuales protegen la ruta de la comunicacion entre la terminal movil 3G y la red inalámbrica del UMTS (o UTRAN) Se describe un método mediante el cual la UICC intercambia informacion con una terminal, tal como un centro de claves interno (IKC 1250), y una funcion del servidor de arranque (bootstrapping) (BSF 1270) habilita un procedimiento en el cual las claves locales multiples específicas para las aplicaciones y las funciones de la aplicacion de la red (las NAF) (Ks local) se emplean para autenticar, encriptar y desencriptar los mensajes.

公开(公告)号：AU2008302172A1

公开(公告)日：2009-03-26

申请号：AU2008302172

申请日：2008-09-19

Applicant: INTERDIGITAL TECH CORP

Inventor： GUCCIONE LOUIS J ,  KASPER MICHAEL ,  CHA INHYOK ,  SHAH YOGENDRA C ,  KUNTZ NICOLAI ,  SCHMIDT ANDREAS U

IPC: H04L29/06 ,  H04W4/60 ,  H04W8/26

Abstract: A mobile trusted platform (MTP) configured to provide virtual subscriber identify module (vSIM) services is disclosed. In one embodiment, the MTP includes: a device manufacturer- trusted subsystem (TSS-DM) configured to store and provide credentials related to a manufacturer of the MTP; a mobile network operator - trusted subsystem (MNO-TSS) configured to store and provide credentials related to a mobile network operator (MNO); and a device user/owner - trusted subsystem (TSS-DO/TSS-U) configured to store and provide credentials related to user of the MTP. The TSS-MNO includes a vSIM core services unit, configured to store, provide and process credential information relating to the MNO. The TSS-DO/TSS-U includes a vSIM management unit, configured to store, provide and process credential information relating to the user/owner of the MTP. The TSS-DO/TSS-U and the TSS-MNO communicate through a trusted vSIM service.