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41. 发明专利

AU2007339304A1 Method and apparatus for base station self configuration 未知
公开(公告)号：AU2007339304A1
公开(公告)日：2008-07-10
申请号：AU2007339304
申请日：2007-12-27
申请人： INTERDIGITAL TECH CORP
发明人： WANG PETER S , GUCCIONE LOUIS J , MILLER JAMES M , OLVERA-HERNANDEZ ULISES
IPC分类号： H04W8/20 , H04W12/04 , H04W24/02 , H04W88/08 , H04W92/20
摘要： 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.

42. 发明专利

DE60220409T2 未知
公开(公告)号：DE60220409T2
公开(公告)日：2008-01-24
申请号：DE60220409
申请日：2002-04-15
申请人： INTERDIGITAL TECH CORP
发明人： CHITRAPU PRABHAKAR R , GUCCIONE LOUIS J , BEDNARZ ANDREW F
IPC分类号： H04J3/06 , H04B1/7073 , H04B1/7083 , H04B7/26 , H04Q7/34
摘要： 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.

43. 发明专利

CA2655721A1 METHOD AND APPARATUS FOR SECURITY PROTECTION OF AN ORIGINAL USER IDENTITY IN AN INITIAL SIGNALING MESSAGE 未知
公开(公告)号：CA2655721A1
公开(公告)日：2008-01-10
申请号：CA2655721
申请日：2007-06-14
申请人： INTERDIGITAL TECH CORP
发明人： TERRY STEPHEN E , WANG PETER S , GUCCIONE LOUIS J
IPC分类号： H04W12/06 , H04L9/30 , H04W8/26 , H04W12/10 , H04W12/12
摘要： A wireless transmit/receive unit (WTRU) includes a control plane (C-plane ) packet data convergence protocol (C-PDCP) layer which performs ciphering o f a signaling message. The C-PDCP layer is activated upon power up of the WT RU and initial security parameters are loaded to the C-PDCP layer. An initia l connection signaling message and a user identity are ciphered using the in itial security parameters even before the WTRU is authenticated. The initial security parameters including a ciphering key (CK) may be generated from sy stem 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 b y or derived from the network system information. An index of the selected p ublic key may be separately encoded. Alternatively, the index may be communi cated by using a Diffie-Hellman key exchange method.

44. 发明专利

AU2007269999A1 Method and apparatus for security protection of an original user identity in an initial signaling message 未知
公开(公告)号：AU2007269999A1
公开(公告)日：2008-01-10
申请号：AU2007269999
申请日：2007-06-14
申请人： INTERDIGITAL TECH CORP
发明人： TERRY STEPHEN E , WANG PETER S , GUCCIONE LOUIS J
IPC分类号： H04W12/00 , H04W12/10 , H04W12/12
摘要： 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.

45. 发明专利

ES2274283T3 MEDIDA DE POTENCIA DE SEÑALES CDMA RECIBIDA UTILIZANDO EL PREPROCESAMIENTO DE UMBRAL SUAVE DESPUES DE LA CORRELACION. 未知
公开(公告)号：ES2274283T3
公开(公告)日：2007-05-16
申请号：ES03772088
申请日：2003-07-29
申请人： INTERDIGITAL TECH CORP
发明人： TYRA FRYDERYK , GUCCIONE LOUIS J
IPC分类号： H04B1/707 , H04B7/005 , H04B7/26
摘要： Un aparato (100, 130) para medir la potencia de una señal de acceso múltiple de división de código (CDMA) recibida, que comprende: un dispositivo de medición de nivel de ruido (106, 134) para medir el nivel de ruido de la señal recibida; un dispositivo de control de ganancia automático (106, 136) para determinar la ganancia de la señal recibida; un dispositivo de muestreo (108, 138) para muestrear la seña recibida que produce muestras de señal recibidas; un generador de secuencia (112, 142) que suministra una secuencia de referencia con forma de un código de la seña CDMA recibida; un correlacionador de secuencia (110, 140) para correlacionar las muestras de señal recibidas con la secuencia de referencia, produciendo muestras de señal correlacionadas; un dispositivo de umbral suave (114, 146) que aplica un umbral suave a las muestras de señal correlacionadas para descartar cualesquiera muestras de señal correlacionadas por debajo del umbral suave; y un acumulador (116, 150) para acumular lasmuestras de señal correlacionadas que exceden del umbral suave, produciendo dicho acumulador la medida de potencia de la señal recibida.

46. 发明专利

NO20053912A 未知
公开(公告)号：NO20053912A
公开(公告)日：2005-08-22
申请号：NO20053912
申请日：2005-08-22
申请人： INTERDIGITAL TECH CORP
发明人： GRIECO DONALD M , HAIM JOHN W , CHITRAPU PRABHAKAR R , GUCCIONE LOUIS J , BEDNARZ ANDREW F , DEMIR ASPASLAN , PETRASKI PHILIP J
IPC分类号： H04B1/707 , H04B7/26 , H04J3/06 , H04L7/02 , H04L7/10 , H04W48/16 , H04W56/00 , H04Q11/04
CPC分类号： H04B1/7083 , H04B1/70735 , H04B1/70755 , H04B1/709 , H04B2201/70701 , H04W48/16 , H04W56/00

47. 发明专利

CA2518476A1 ENHANCED AUTOMATIC GAIN CONTROL MECHANISM FOR TIMESLOTTED DATA TRANSMISSIONS 未知
公开(公告)号：CA2518476A1
公开(公告)日：2004-09-30
申请号：CA2518476
申请日：2004-03-12
申请人： INTERDIGITAL TECH CORP
发明人： AXNESS TIMOTHY A , GRIECO DONALD M , GUCCIONE LOUIS J , TYRA FRYDERYK , HAIM JOHN W
IPC分类号： H03G3/00 , H03G3/20 , H03G3/30 , H04B7/005 , H04J3/00
摘要： 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.

48. 发明专利

NO20035741L 未知
公开(公告)号：NO20035741L
公开(公告)日：2004-02-23
申请号：NO20035741
申请日：2003-12-19
申请人： INTERDIGITAL TECH CORP
发明人： CHITRAPU PRABHAKAR R , GUCCIONE LOUIS J , BEDNARZ ANDREW F
IPC分类号： H04J3/12 , H04B1/7073 , H04B1/7083 , H04Q7/28 , H04Q7/34
摘要： 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.

49. 发明专利

NO20035741D0 未知
公开(公告)号：NO20035741D0
公开(公告)日：2003-12-19
申请号：NO20035741
申请日：2003-12-19
申请人： INTERDIGITAL TECH CORP
发明人： CHITRAPU PRABHAKAR , GUCCIONE LOUIS J , BEDNARZ ANDREW F
IPC分类号： H04B1/7073 , H04B1/7083 , H04Q7/34 , H04J
摘要： 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.

50. 发明专利

CA2451242A1 AN IMPROVED APPARATUS AND METHOD FOR PERFORMING INITIAL CELLSEARCH IN WIRELESS COMMUNICATION SYSTEMS 未知
公开(公告)号：CA2451242A1
公开(公告)日：2003-01-03
申请号：CA2451242
申请日：2002-04-15
申请人： INTERDIGITAL TECH CORP
发明人： CHITRAPU PRABHAKAR R , GUCCIONE LOUIS J , BEDNARZ ANDREW F
IPC分类号： H04B1/7073 , H04B1/7083 , H04Q7/34 , H04J3/06
摘要： 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.

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