公开(公告)号：EP1563631A4

公开(公告)日：2006-08-02

申请号：EP03783219

申请日：2003-11-07

Applicant: INTERDIGITAL TECH CORP

Inventor： PIETRASKI PHILIP J ,  DIFAZIO ROBERT A

IPC: H04H20/00 ,  H04L1/18 ,  H04L1/20 ,  H04W52/04 ,  H04L1/00 ,  H04Q7/00

CPC classification number: H04B17/26 ,  H04L1/0016 ,  H04L1/1812 ,  H04L1/203 ,  H04W52/04

Abstract: Enhanced methods for channel quality estimation utilize soft symbol output data to generate a statistic or set of statistics that are representative of BER for each of a plurality of bursts corresponding to a composite channel. The statistics are mapped into a BER estimate to generate individual BER estimates for each of the plurality of bursts. The individual BER estimates are combined to obtain an estimate of the BER for the entire composite channel. Alternatively, the BER estimate for the composite channel may then be mapped into a quality estimate for the composite channel using a monotonic function.

公开(公告)号：EP1442360A4

公开(公告)日：2005-03-16

申请号：EP02800369

申请日：2002-09-26

Applicant: INTERDIGITAL TECH CORP

Inventor： DIFAZIO ROBERT A

IPC: H04B1/7093 ,  H04B1/71 ,  H04B1/7105 ,  H04B7/155 ,  H04B7/216 ,  H04J3/00 ,  H04J3/14 ,  H04L1/00 ,  H04Q7/30 ,  G06F9/00 ,  H04B7/005 ,  H04B17/00 ,  H04J3/16 ,  H04Q7/00 ,  H04Q11/04

CPC classification number: H04B1/71 ,  H04B1/7093 ,  H04B1/7105 ,  H04L1/0039

Abstract: The present invention is a receiver for receiving a communication signal divided into a plurality of timeslots, wherein the timeslots include a plurality of channels, including a burst detector for detecting when a selected one of the plurality of channels of the communication is received. The burst detector comprises a noise estimation device (11) for determinig a scaled noise power estimate of the selected one of the timeslots, a matched filter (12) for detecting signal power of the selected one of the timeslots and a signal power estimation device (13), responsive for the matched filter (12), for generating a signal power estimate of the selected one of the timeslots. A comparator (14) responsive to the scaled noise power estimate the signal power estimate is also included in the burst detector for generating a burst detection signal when the signal power estimate is greater than the scaled noise power estimate, and a data estimation device, responsive to the burst detection signal, for decoding the plurality of channels.

公开(公告)号：DE602004015426D1

公开(公告)日：2008-09-11

申请号：DE602004015426

申请日：2004-03-01

Applicant: INTERDIGITAL TECH CORP

Inventor： SUPPLEE STEPHAN SHANE ,  TIMMERMAN CHAYIL S ,  BUCHERT RYAN SAMUEL ,  BECKER PETER EDWARD ,  NASUTI TONINO ,  DIFAZIO ROBERT A ,  HAIM JOHN W

IPC: H04B7/216 ,  H04B1/707

Abstract: Multi-user detection (MUD) performance is optimized to eliminate redundant use of power during processing. An overbuilt A-matrix, i.e., a system response matrix, is provided. The overbuilt A-matrix uses all possible codes, e.g., all codes identified in a candidate code list (CCL) provided by blind code detection (BCD). The overbuilt A-matrix is passed to the MUD which extracts only those rows or columns required for codes that have actually been received, thus eliminating the need to recompute whitening matched filter (WMF) outputs that do not correspond to the actually received code.

公开(公告)号：DE60226047D1

公开(公告)日：2008-05-21

申请号：DE60226047

申请日：2002-10-10

Applicant: INTERDIGITAL TECH CORP

Inventor： DIFAZIO ROBERT A ,  TERRY STEPHEN E

IPC: H04B7/005 ,  H04B7/212 ,  H04B7/26 ,  H04Q7/20

Abstract: A system and method for reducing the unused capacity of a wireless communication channel utilize the data fields of an special burst (SB) in order to signal physical layer control signaling for coordination between a Node B and a user equipment (UE). The control signaling may include improved reception of SBs, enclose transmit power control commands or any physical layer control signaling for coordination between the UE and the Node B for synchronization timing advance or reconfiguration of the physical channel. This system and method may be applied independently to the uplink and the downlink.

公开(公告)号：NO20075957L

公开(公告)日：2008-01-18

申请号：NO20075957

申请日：2007-11-20

Applicant: INTERDIGITAL TECH CORP

Inventor： TERRY STEPHEN E ,  PAN JUNG-LIN ,  ZHANG GUODONG ,  DIFAZIO ROBERT A ,  WANG PETER SHAOMIN

IPC: H04J1/16 ,  H04L29/08 ,  H04W52/34

Abstract: A method and apparatus for scheduling transmissions via an enhanced dedicated channel (E-DCH) are disclosed. A scheduled power is calculated for scheduled data flows. A remaining transmit power is calculated for the E-DCH transmission. A rate request message is generated, wherein the scheduled power, remaining transmit power and rate request message are used to select transport format combinations (TFCs) and multiplex data scheduled for the E-DCH transmission. The remaining transmit power is calculated by subtracting from a maximum allowed power the power of a dedicated physical data channel (DPDCH), a dedicated physical control channel (DPCCH), a high speed dedicated physical control channel (HS-DPCCH), an enhanced uplink dedicated physical control channel (E-DPCCH) and a power margin.

公开(公告)号：MX2007012965A

公开(公告)日：2008-01-11

申请号：MX2007012965

申请日：2006-04-19

Applicant: INTERDIGITAL TECH CORP

Inventor： TERRY STEPHEN E ,  DIFAZIO ROBERT A ,  ZHANG GUODONG ,  WANG PETER SHAOMIN ,  PAN KYLE JUNG-LIN

IPC: H04W72/12 ,  H04B7/00

Abstract: Se describen un metodo y un aparato para controlar transmisiones de datos vias un canal dedicado mejorado (E-DCH). Se genera una lista de combinaciones de formato de transporte (TFC) disponibles sobre la base de una pluralidad de flujos de control de acceso de medio de canal dedicado (MAC-d). Se genera una unidad de datos de protocolo (PDU) de control de acceso de medio de enlace ascendente mejorado (MAC-e) usando un TFC el cual es seleccionado de la lista de TFC disponibles. La PDU de MAC-e es enviada a una unidad de proceso de peticion de repeticion automatica hibrida (H-ARQ) para su transmision. La lista de TFC disponible es actualizada continuamente eliminando y recuperando TFC sobre la base de la potencia de E-DCH restante, y el conjunto de combinacion de formato de transporte (TFCS) de E-DCH, una desviacion de potencia de un flujo de MAC-d de prioridad mayor que la que tiene los datos de E-DCH para transmitir, un factor de ganancia por cada TFC.

公开(公告)号：DE60223833D1

公开(公告)日：2008-01-10

申请号：DE60223833

申请日：2002-09-26

Applicant: INTERDIGITAL TECH CORP

Inventor： DIFAZIO ROBERT A

IPC: G06F9/00 ,  H04B1/7093 ,  H04B1/71 ,  H04B1/7105 ,  H04B7/005 ,  H04B7/155 ,  H04B7/216 ,  H04B17/00 ,  H04J3/00 ,  H04J3/14 ,  H04J3/16 ,  H04L1/00 ,  H04Q7/00 ,  H04Q7/30 ,  H04Q11/04

Abstract: The present invention is a receiver (19) for receiving a communication signal divided into a plurality of timeslots, wherein the timeslots include a plurality of channels, including a burst detector (10) for detecting when a selected one of the plurality of channels of the communication is received. The burst detector comprises a noise estimation device for determining a scaled noise power estimate of the selected one of the timeslots, a matched filter for detecting signal power of the selected one of the timeslots and a signal power estimation device, responsive for the matched filter, for generating a signal power estimate of the selected one of the timeslots. A comparator responsive to the scaled noise power estimate the signal power estimate is also included in the burst detector for generating a burst detection signal when the signal power estimate is greater than the scaled noise power estimate, and a data estimation device, responsive to the burst detection signal, for decoding the plurality of channels.

公开(公告)号：MY134423A

公开(公告)日：2007-12-31

申请号：MYPI20023904

申请日：2002-10-18

Applicant: INTERDIGITAL TECH CORP

Inventor： TERRY STEPHEN E ,  DICK STEPHEN G ,  DIFAZIO ROBERT A ,  LEVY JOSEPH S

IPC: H04B7/216 ,  H04B7/26 ,  H04B7/005 ,  H04J3/16 ,  H04W52/22 ,  H04W52/36 ,  H04W52/50

Abstract: THE PRESENT INVENTION DISCLOSES A METHOD AND SYSTEM FOR ENABLING EFFICIENT REDUCTION OF TFCS IN THE TFCS TO ACHIEVE DESIRED TRANSMISSION, WHILE REMAINING WITH DESIRED POWER AND DATA REQUIREMENTS. UPON THE UE TRANSMISSION POWER REQUIREMENT EXCEEDING THE MAXIMUM OR ALLOWABLE TRANSMISSION POWER THE MAC SHALL BE INFORMED FOR SUBSEQUENT TFC SELECTION OF ALL TFCS THAT CURRENTLY EXCEED THIS LIMIT. THE UE WILL THEN CHOSE THE TFC WITH THE NEXT LOWER TRANSMISSION POWER REQUIREMENT AND THE SEQUENCE WILL CONTINUE UNIT AN ACCEPTABLE TFC IS DETERMINED. THE PRESENT INVENTION ALSO ENABLES THE REPLACEMENT OF THE TFCS IN THE TFCS AND ADVANCED DETERMINATION OF NON-SUPPORTED TFCS. THE TFCS THAT REQUIRE TRANSMISSION POWER GREATER THEN THE MAXIMUM OR ALLOWED UE TRANSMISSION POWER SHALL BE DETERMINED CONTINUOUSLY IN EVERY TTI, NOT JUST IN TTIS WHERE THE MAXIMUM POWER HAS BEEN EXCEEDED.(FIG 1)

公开(公告)号：NO20074706L

公开(公告)日：2007-11-13

申请号：NO20074706

申请日：2007-09-14

Applicant: INTERDIGITAL TECH CORP

Inventor： KAEWELL JR JOHN DAVID ,  REZNIK ALEXANDER ,  DIFAZIO ROBERT A ,  BECKER PETER EDWARD ,  LI BIN ,  PAN KYLE JUNG-LIN

IPC: H04B7/005

Abstract: A receiver or an integrated circuit (IC) incorporated therein includes a fast Fourier transform (FFT)-based (or hybrid FFT-based) sliding window block level equalizer (BLE) for generating equalized samples. The BLE includes a noise power estimator, first and second channel estimators, an FFT-based chip level equalizer (CLEQ) and a channel monitor unit. The noise power estimator generates a noise power estimate based on two diverse sample data streams. The channel estimators generate respective channel estimates based on the sample data streams. The channel monitor unit generates a first channel monitor signal including truncated channel estimate vectors based on the channel estimates, and a second channel monitor signal which indicates an approximate rate of change of the truncated channel estimate vectors. The FFT-based CLEQ generates the equalized samples based on the noise power estimate, one-block samples of the first and second sample data streams, the channel estimates and the monitor signals.

公开(公告)号：CA2605498A1

公开(公告)日：2006-10-26

申请号：CA2605498

申请日：2006-04-19

Applicant: INTERDIGITAL TECH CORP

Inventor： WANG PETER SHAOMIN ,  PAN KYLE JUNG-LIN ,  TERRY STEPHEN E ,  DIFAZIO ROBERT A ,  ZHANG GUODONG

IPC: H04B7/00 ,  H04W72/12

Abstract: A method and apparatus for controlling transmissions of data via an enhanced dedicated channel (E-DCH) are disclosed. A list of available transport format combinations (TFCs) is generated based on a plurality of dedicated channel medium access control (MAC-d) flows. An enhanced uplink medium access control (MAC-e) protocol data unit (PDU) is generated using a TFC which is selected from the list of available TFCs. The MAC-e PDU is forwarded to a hybrid-automatic repeat request (H-ARQ) process unit for transmission. The list of available TFCs is continuously updated by eliminating and recovering TFCs based on remaining E-DCH power, an E-DCH transport format combination set (TFCS), a power offset of a highest priority MAC-d flow that has E-DCH data to transmit, and a gain factor for each TFC.