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公开(公告)号:CA2682121C
公开(公告)日:2014-06-17
申请号:CA2682121
申请日:2008-03-27
Applicant: INTERDIGITAL TECH CORP
Inventor: RUDOLF MARIAN , AGHILI BEHROUZ , CHITRAPU PRABHAKAR R , DICK STEPHEN G , PIETRASKI PHILIP J , LI YAN
IPC: H04L1/16
Abstract: A method and apparatus for indicating a temporary block flow (TBF) to which a piggybacked acknowledgement/non-acknowledgement (PAN) field is addressed. A PAN check sequence (PCS) is created, for example using a cyclic redundancy check (CRC) encoding.. The PCS is masked with a temporary flow identity (TFI) assigned to a TBF or a mask generated based on the TFI. A data block including the PAN field and the masked PCS is then processed for transmission. The mask may be generated by converting the TFI using an (M, N) code, M being not greater than the number of bits of the PCS and N being the number of bits of the TFI. With this scheme, a TFI may be transmitted in a PAN field without using explicit bits to identify the TBF.
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62.
公开(公告)号:AU2010200423B8
公开(公告)日:2012-11-01
申请号:AU2010200423
申请日:2010-02-05
Applicant: INTERDIGITAL TECH CORP
Inventor: RUDOLF MARIAN , DICK STEPHEN G , PIETRASKI PHILIP J
Abstract: A method and wireless communication system for providing channel assignment information used to support an uplink (UL) channel and a downlink 5 (DL) channel. The system includes at least one Node-B and at least one wireless transmit/receive unit (WTRU). The WTRU communicates with the Node-B via a common control channel, the UL channel and the DL channel. The WTRU receives a message from the Node-B via the common control channel. The message includes an indication of whether the message is intended for assigning 10 radio resources to the UL channel or the DL channel. The WTRU determines whether the message is intended for the WTRU and, if so, the WTRU determines whether the message is for assigning radio resources to the UL channel or the DL channel. The WTRU takes an appropriate action based on whether the message is for assigning radio resources to the UL channel or the DL channel.
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公开(公告)号:HK1133345A1
公开(公告)日:2010-03-19
申请号:HK10100854
申请日:2010-01-27
Applicant: INTERDIGITAL TECH CORP
Inventor: PIETRASKI PHILIP J , YANG YONGWEN
IPC: H04L20060101
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64.
公开(公告)号:MY140365A
公开(公告)日:2009-12-31
申请号:MYPI20044787
申请日:2004-11-18
Applicant: INTERDIGITAL TECH CORP
Inventor: RUDOLF MARIAN , DICK STEPHEN G , PIETRASKI PHILIP J
Abstract: A METHOD AND WIRELESS COMMUNICATION SYSTEM FOR PROVIDING CHANNEL ASSIGNMENT INFORMATION USED TO SUPPORT AN UPLINK (UL) CHANNEL AND A DOWNLINK (DL) CHANNEL. THE SYSTEM INCLUDES AT LEAST ONE NODE-B AND AT LEAST ONE WIRELESS TRANSMIT/RECEIVE UNIT (WTRU). THE WTRU COMMUNICATES WITH THE NODE-B VIA A COMMON CONTROL CHANNEL, THE UL CHANNEL AND THE DL CHANNEL. THE WTRU RECEIVES A MESSAGE FROM THE NODE-B VIA THE COMMON CONTROL CHANNEL. THE MESSAGE INCLUDES AN INDICATION OF WHETHER THE MESSAGE IS INTENDED FOR ASSIGNING RADIO RESOURCES TO THE UL CHANNEL OR THE DL CHANNEL. THE WTRU DETERMINES WHETHER THE MESSAGE IS INTENDED FOR THE WTRU AND, IF SO, THE WTRU DETERMINES WHETHER THE MESSAGE IS FOR ASSIGNING RADIO RESOURCES TO THE UL CHANNEL OR THE DL CHANNEL. THE WTRU TAKES AN APPROPRIATE ACTION BASED ON WHETHER THE MESSAGE IS FOR ASSIGNING RADIO RESOURCES TO THE UL CHANNEL OR THE DL CHANNEL.
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公开(公告)号:MX2009010393A
公开(公告)日:2009-11-23
申请号:MX2009010393
申请日:2008-03-27
Applicant: INTERDIGITAL TECH CORP
Inventor: RUDOLF MARIAN , PIETRASKI PHILIP J , PRABHAKAR R CHITRAPU , AGHILI BEHROUZ , STEPHEN G DICK , LI YAN
IPC: H04L1/16
Abstract: Un método y aparato para indicar un flujo de bloque temporal (TBF) al cual se direcciona un campo de acuse de recibo/no acuse de recibo transportado (PAN). Se crea una secuencia de verificación de PAN (PCS) usando, por ejemplo, una codificación de verificación de redundancia cíclica (CR). La PCS se oculta con una identidad de flujo temporal (TFI) asignada a un TBF o una máscara generada en base a la TFI. Se procesa entonces, para transmisión, un bloque de datos que incluye el campo de PAN y la PCS oculta. La máscara puede generarse mediante conversión de la TFI usando un código (M,N), siendo M no mayor al número de bits de la PCS y siendo N el número de bits de la TFI. Con este esquema, una TFI puede transmitirse en un campo de PAN sin usar bits explícitos para identificar el TBF.
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公开(公告)号:AU2007200808B2
公开(公告)日:2009-01-29
申请号:AU2007200808
申请日:2007-02-23
Applicant: INTERDIGITAL TECH CORP
Inventor: STERNBERG GREGORY S , PIETRASKI PHILIP J
Abstract: Detecting, avoiding and/or correcting problematic puncturing patterns in parity bit streams used when implementing punctured Turbo codes is achieved without having to avoid desirable code rates. This enables identification/avoidance of regions of relatively poor Turbo code performance. Forward error correction comprising Turbo coding and puncturing achieves a smooth functional relationship between any measure of performance and the effective coding rate resulting from combining the lower rate code generated by the Turbo encoder (600) with puncturing of the parity bits. In one embodiment, methods to correct/avoid degradations due to Turbo coding are implemented by puncturing interactions when two or more stages of rate matching (610, 620) are employed.
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公开(公告)号:AU2008233171A1
公开(公告)日:2008-10-09
申请号:AU2008233171
申请日:2008-03-27
Applicant: INTERDIGITAL TECH CORP
Inventor: CHITRAPU PRABHAKAR R , DICK STEPHEN G , AGHILI BEHROUZ , RUDOLF MARIAN , PIETRASKI PHILIP J
IPC: H04L1/16
Abstract: Methods and base stations are described. A base station includes a receiver, a processor and a transmitter. The receiver receives a first data block associated with an uplink temporary block flow (TBF), and the first data block includes a first header that includes a temporary flow identity (TFI) that identifies the uplink TBF. The processor generate a piggybacked acknowledgement/non-acknowledgement (PAN) field corresponding to the uplink TBF and a PAN check sequence (PCS) based on the PAN field, masks a subset of PCS bits with the TFI to generate a masked PCS, and generates a second data block, associated with a downlink TBF, that includes a second header, a data part corresponding to the downlink TBF, the PAN field, and the masked PCS. The transmitter transmits the second data block.
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公开(公告)号:AR060910A1
公开(公告)日:2008-07-23
申请号:ARP070102062
申请日:2007-05-14
Applicant: INTERDIGITAL TECH CORP
Inventor: ROY VINCENT , PIETRASKI PHILIP J , ZEIRA ARIELA
Abstract: Un método y un aparato para senalizacion de informacion indicando los requerimientos de performance a los que una WTRU se acomete a satisfacer desde la WTRU para permitir una más eficiente asignacion de recursos de radio e incrementar la capacidad de la red. La WTRU puede senalizar informacion a la estacion base que incluye los requerimientos de performance que la WTRU se acomete a satisfacer, lo que incluye un codigo o un campo asociado con al menos un requerimiento de performance. En otra incorporacion, la informacion senalizada indica un cambio en los requerimientos de performance acometidos por a WTRU. En otra incorporacion más, la WTRU senaliza mediciones de calidad de canal, tales como mensajes de reportes de indicador de calidad de canal (CQI) a la estacion base, la cual, en turno, infiere cierta informacion referente al performance del receptor con base en las mediciones de calidad de canal.
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公开(公告)号:MY133314A
公开(公告)日:2007-11-30
申请号:MYPI20034409
申请日:2003-11-18
Applicant: INTERDIGITAL TECH CORP
Inventor: STERNBERG GREGORY S , YANG RUI , PIETRASKI PHILIP J , OLESEN ROBERT LIND
Abstract: A SYSTEM, COMPONENTS AND METHODS PROVIDE FEC DECODING IN A WIRELESS COMMUNICATION SYSTEM IN WHICH SIGNAL TO NOISE RATIO ESTIMATION IS USED FOR SCALING INFORMATION CAPTURED BY A DEMODULATOR (14) IN PROCESSING RECEIVED WIRELESS COMMUNICATION SIGNALS. A PREFERRED WIRELESS TRANSMIT RECEIVE UNIT (WTRU) HAS A CHANNEL RATE ESTIMATION DEVICE (25) CONFIGURED TO PROCESS THE RECEIVED COMMUNICATION SIGNALS FOR THE PARTICULAR COMMUNICATION CHANNEL AND TO PRODUCE CHANNEL CHANGE RATE ESTIMATES. A SIGNAL TO NOISE RATIO (SNR) ESTIMATION DEVICE (16) OF THE WTRU IS CONFIGURED TO PRODUCE SNR ESTIMATES BASED ON OBSERVATION WINDOWS OF A CALCULATED NUMBER OF SAMPLES OF THE RECEIVED SIGNAL WHERE THE NUMBER OF SAMPLES USED FOR EACH OBSERVATION WINDOW IS CALCULATED BY AN OBSERVATION WINDOW SELECTION DEVICE (25) AS A FUNCTION OF THE CHANNEL CHANGE RATE ESTIMATES PRODUCED BY THE CHANNEL RATE ESTIMATION DEVICE (23).(FIG 3)
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公开(公告)号:NO20072745A
公开(公告)日:2007-08-02
申请号:NO20072745
申请日:2007-05-30
Applicant: INTERDIGITAL TECH CORP
Inventor: PIETRASKI PHILIP J , DEMIR ALPASLAN , BELURI MIHAELA
IPC: H03H7/30
CPC classification number: H04L25/03019 , H04B2201/70701 , H04L2025/03687
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