-
公开(公告)号:NO20060421L
公开(公告)日:2006-03-23
申请号:NO20060421
申请日:2006-01-25
Applicant: INTERDIGITAL TECH CORP
Inventor: REZNIK ALEXANDER , YANG RUI , LI BIN , ZEIRA ARIELA
IPC: H03D1/04 , H04B20060101 , H04B1/707 , H04L25/03
Abstract: The present invention has many aspects. One aspect of the invention is to perform equalization using a sliding window approach. A second aspect reuses information derived for each window for use by a subsequent window. A third aspect utilizes a discrete Fourier transform based approach for the equalization. A fourth aspect relates to handling oversampling of the received signals and channel responses. A fifth aspect relates to handling multiple reception antennas. A sixth embodiment relates to handling both oversampling and multiple reception antennas.
-
公开(公告)号:NO20060421A
公开(公告)日:2006-03-23
申请号:NO20060421
申请日:2006-01-25
Applicant: INTERDIGITAL TECH CORP
Inventor: REZNIK ALEXANDER , YANG RUI , LI BIN , ZEIRA ARIELA
IPC: H03D1/04 , H04B20060101 , H04B1/707 , H04L25/03
CPC classification number: H04L25/03305 , H04B1/71055 , H04L25/03331 , H04L25/03993
-
公开(公告)号:HK1075549A1
公开(公告)日:2005-12-16
申请号:HK05109551
申请日:2005-10-27
Applicant: INTERDIGITAL TECH CORP
Inventor: KIM YOUNGLOK , PAN JUNG-LIN , ZEIRA ARIELA , REZNIK ALEXANDER
Abstract: A plurality of communication signals is received. Each communication signal has an associated code. At least two of the communication signals has a different spreading factor. The associated codes have a scrambling code period. A total system response matrix has blocks. Each block has one dimension of a length M and another dimension of a length based on in part M and the spreading factor of each communication. M is based on the scrambling code period. Data of the received plurality of communication signals is received using the constructed system response matrix.
-
公开(公告)号:NO20054205L
公开(公告)日:2005-09-09
申请号:NO20054205
申请日:2005-09-09
Applicant: INTERDIGITAL TECH CORP
Inventor: REZNIK ALEXANDER , HEPLER EDWARD L
Abstract: Components and method are provided to efficiently process wireless communications data where prior knowledge of a specific format of the communication data is not available. A wireless transmit receive unit (WTRU) is configured for use in a wireless communication system where communication data for selected channels is transmitted in system time frames in formats selected from among a set of predefined formats. The WTRU has a receiver, a memory, a received chip rate processor (RCRP) and a format detector. The RCRP is preferably configured to despread each wireless signal of spread data received in each time frame using a minimum spreading code or other appropriate key sequence and to store resultant despread data for each respective time frame in the memory. The format detector is preferably configured to determine the number of physical channels and the respective spreading factor for each physical channel for the wireless signal of spread data.
-
公开(公告)号:NO20054205A
公开(公告)日:2005-09-09
申请号:NO20054205
申请日:2005-09-09
Applicant: INTERDIGITAL TECH CORP
Inventor: REZNIK ALEXANDER , HEPLER EDWARD L
CPC classification number: H04L1/1829 , H04B1/707 , H04L1/0006 , H04L1/0025 , H04L1/0032 , H04L1/0071
-
公开(公告)号:DE60012944T2
公开(公告)日:2005-08-11
申请号:DE60012944
申请日:2000-09-11
Applicant: INTERDIGITAL TECH CORP
Inventor: MESECHER K , REZNIK ALEXANDER , GRIECO DONALD , CHEUNG GARY
IPC: H04B1/712 , H04B7/06 , H04B7/08 , H04B7/216 , H04B7/26 , H04J13/00 , H04M1/725 , H04Q7/38 , H04B1/707
Abstract: A receiving device comprising circuitry configured to receive a signal including pilot bits transmitted by a plurality of antennas; wherein the received signal includes data for a single user that was combined with different sequences producing a plurality of combined data sequences; wherein antenna-specific weights for the plurality of antennas are applied to each of the combined data sequences and the antenna specific weights are applied to pilot bits added with the combined data sequences; wherein the received signal includes the pilot bits for each of the plurality of antennas; and wherein the pilot bits for each antenna have a different sequence for that antenna; the circuitry is further configured to derive preferred weights for the received signal based on the pilot bits for each antenna; the circuitry is further configured to recover data for the single user from each of the combined data sequences; and the circuitry is further configured to combine data from the recovered data for the single user from each of the different sequences.
-
公开(公告)号:CA2553215A1
公开(公告)日:2005-08-04
申请号:CA2553215
申请日:2005-01-12
Applicant: INTERDIGITAL TECH CORP
Inventor: SHIN SUNG-HYUK , KAEWELL JOHN DAVID JR , REZNIK ALEXANDER , HERSCHAFT RICHARD DAN , HOFFMANN JOHN ERICH , OLESEN ROBERT LIND , CHITRAPU PRABHAKAR R , CHIANG BING A
IPC: H04L9/32 , H04J99/00 , H04L9/14 , H04L29/02 , H04L29/06 , H04M1/66 , H04M1/68 , H04W12/00 , H04W12/02 , H04W12/06 , H04W12/10
Abstract: At least one user data stream is layer 2/3 processed, physical layer process ed and radio frequency processed. A watermark/signature is embedded at at least one of layer 2/3, physical layer or radio frequency, producing an embedded wireless communication. The embedded wireless communication is wirelessly transferred. The embedded wireless communication is received and the watermark/signature is extracted from the embedded wireless communication.
-
公开(公告)号:CA2540381A1
公开(公告)日:2005-04-14
申请号:CA2540381
申请日:2004-09-01
Applicant: INTERDIGITAL TECH CORP
Inventor: REZNIK ALEXANDER , LI BIN
Abstract: A receiver comprises a plurality of antenna elements for receiving a data signal. Each antenna element has a plurality of Rake fingers. Each Rake finger processes a received multipath component of the received data signal of its antenna element by applying a complex weight gain to that received multipath component. A complex weight gain generator determines the complex weight gain for each Rake finger for each antenna element using an input from all the Rake fingers. A summer combines an output of each Rake finger to produce an estimate of the data signal.
-
公开(公告)号:ES2227124T3
公开(公告)日:2005-04-01
申请号:ES01905346
申请日:2001-02-02
Applicant: INTERDIGITAL TECH CORP
Inventor: ZEIRA ARIELA , ZEIRA ELDAD , REZNIK ALEXANDER , TERRY STEPHEN E
IPC: H04B1/707 , H04B1/7073 , H04B1/7093 , H04B1/7103 , H04B1/7105 , H04B7/00 , H04J3/00 , H04J11/00 , H04J13/00 , H04J13/16 , H04Q7/38
Abstract: Un método para que un equipo de usuario dúplex por división de tiempo / acceso múltiple a división codificada determine códigos de canalización activos, recibiendo el equipo de usuario una pluralidad de ráfagas de comunicación transmitidas en un segmento de tiempo, determinando el equipo de usuario una secuencia intermedia asociada a cada ráfaga (64) de comunicación recibida, método caracterizado por: determinar códigos de canalización posibles de cada ráfaga de comunicación recibida usando una asignación entre secuencias intermedias y códigos de canalización, cada secuencia intermedia está asignada a al menos un código de canalización y al menos un código de secuencia intermedia está asignado a una pluralidad de códigos de canalización (66); y para cada secuencia intermedia determinada asignada a una pluralidad de códigos de canalización posibles, emparejar las ráfagas de comunicación recibidas a los códigos de canalización posibles de esa secuencia intermedia y determinar el código de canalización de la ráfaga de comunicación de esa secuencia intermedia usando un resultado del emparejamiento.
-
公开(公告)号:NO20050213A
公开(公告)日:2005-03-30
申请号:NO20050213
申请日:2005-01-13
Applicant: INTERDIGITAL TECH CORP
Inventor: ZEIRA ARIELA , REZNIK ALEXANDER , PAN JUNG-LIN , KIM YONGLOK
IPC: H04B1/69
CPC classification number: H04J13/0044 , H04B1/707 , H04B1/71052 , H04B1/71055 , H04B2201/70703 , H04B2201/70705
Abstract: A plurality of communication signals is received. Each communication signal has an associated code. At least two of the communication signals has a different spreading factor. The associated codes have a scrambling code period. A total system response matrix has blocks. Each block has one dimension of a length M and another dimension of a length based on in part M and the spreading factor of each communication. M is based on the scrambling code period. Data of the received plurality of communication signals is received using the constructed system response matrix.
-
-
-
-
-
-
-
-
-