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11.发明专利
公开(公告)号：AU7228100A
公开(公告)日：2001-06-28
申请号：AU7228100
申请日：2000-12-14
Applicant: LUCENT TECHNOLOGIES INC
Inventor： KARIMI HAMID REZA , KUZMINSKIY ALEXANDR , LUSCHI CARLO , SANDELL MAGNUS , STRAUCH PAUL EDWARD , YAN RAN-HONG
Abstract: A time division multiple access cellular radio telecommunications network is disclosed, in which physical channels may be reused in the same cell. Reused channels on the up link are differentiated by a time shift between them. Same cell reuse (SCR) can thus be implemented in a TDMA (GSM) system without assigning different signatures to SDMA users sharing the same physical channel.
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公开(公告)号：ID21813A
公开(公告)日：1999-07-29
申请号：ID981659
申请日：1998-12-22
Applicant: LUCENT TECHNOLOGIES INC
Inventor： LUSCHI CARLO , MUJTABA SYED AON , SANDAL MAGNUS , STRAUCH PAUL EDWARD
Abstract: Apparatus and method for iteratively decoding a signal are provided. The apparatus includes a central pool of resources for iteratively decoding signals. The central pool may run a plurality of iterative decoding processes, each process being allocated to a signal processing unit upon request and depending upon resource availability.
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公开(公告)号：DE69932118D1
公开(公告)日：2006-08-10
申请号：DE69932118
申请日：1999-04-27
Applicant: LUCENT TECHNOLOGIES INC
Inventor： LUSCHI CARLO , SANDELL MAGNUS , MUJTABA SYED AON , STRAUCH PAUL EDWARD , TEN BRINK STEPHAN DIPL ING , YAN RAN-HONG
Abstract: A method of estimating channel impulse response in a signal transmitted over a channel in a communication system is described. The channel estimator obtains a priori knowledge about the transmitted signal, and then uses the transmitted signal and the a priori knowledge to choose an estimate of channel impulse response which minimizes the expected distance between the transmitted signal and a reconstructed signal. The expected distance that is minimized is a cost function, represented by E{∥r-Bh∥2r}. By using soft decision feedback, the invention minimizes erroneous decision feedback which can cause error propagation. The decisions are usually in the form of log likelihood ratios (LLR).
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公开(公告)号：DE69923541T2
公开(公告)日：2006-02-16
申请号：DE69923541
申请日：1999-05-10
Applicant: LUCENT TECHNOLOGIES INC
Inventor： FLEWITT ADRIAN ROBERT , LUSCHI CARLO , RUMI EMAL DAHAM , SANDELL MAGNUS , STRAUCH PAUL EDWARD , YAN RAN
IPC: H04L25/02 , H04L27/00 , H04L27/233
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15.发明专利
公开(公告)号：GB2375272B
公开(公告)日：2003-11-19
申请号：GB0110537
申请日：2001-04-30
Applicant: LUCENT TECHNOLOGIES INC
Inventor： LUSCHI CARLO , STRAUCH PAUL EDWARD , KUZMINSKIY ALEXANDER
IPC: H04L27/00 , H04L27/233 , H04L7/02
Abstract: A frequency estimator is provided for use in a receiver of packetized data. The frequency estimator determines the signal frequency error ( ƒo) with which a data packet has been received. It does this by relating data (gn) representative of some symbols to decisions (Sn) on those symbols. These symbols include not only training symbols (Nt) but also some information symbols (Nadd).
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Patent Agency Ranking
公开(公告)号：CA2254644C
公开(公告)日：2002-08-06
申请号：CA2254644
申请日：1998-11-30
Applicant: LUCENT TECHNOLOGIES INC
Inventor： MUJTABA SYED AON , LUSCHI CARLO , STRAUCH PAUL EDWARD , TEN BRINK STEPHAN , YAN RAN-HONG , SANDELL MAGNUS
Abstract: Apparatus and method for iteratively decoding a signal arc provided. The apparatus includes a central pool of resources for iteratively decoding signals. The central pool may run a plurality of iterative decoding processes, each p rocess being allocated to a signal processing unit upon request and depending upon resource availability.
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公开(公告)号：BR0005869A
公开(公告)日：2001-07-24
申请号：BR0005869
申请日：2000-12-13
Applicant: LUCENT TECHNOLOGIES INC
Inventor： KARIMI HAMID REZA , YAN HONG , KUZMINSKIY ALEXANDR , LUSCHI CARLO , SANDELL MAGNUS , STRAUCH PAUL EDWARD
Abstract: A time division multiple access cellular radio telecommunications network is disclosed, in which physical channels may be reused in the same cell. Reused channels on the up link are differentiated by a time shift between them. Same cell reuse (SCR) can thus be implemented in a TDMA (GSM) system without assigning different signatures to SDMA users sharing the same physical channel.
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18.发明专利
公开(公告)号：CA2325650A1
公开(公告)日：2001-06-21
申请号：CA2325650
申请日：2000-11-10
Applicant: LUCENT TECHNOLOGIES INC
Inventor： SANDELL MAGNUS , STRAUCH PAUL EDWARD , YAN RAN-HONG , LUSCHI CARLO , KARIMI HAMID REZA , KUZMINSKIY ALEXANDR
Abstract: A time division multiple access cellular radio telecommunications network is disclosed, in which physical channels may be reused in the same cell. Reused channels on the up link are differentiated by a time shift between them. Same cell reuse (SCR) can thus be implemented in a TDMA (GSM) system without assigning different signatures to SDMA users sharing the same physic al channel.
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公开(公告)号：GB2344034B
公开(公告)日：2001-01-17
申请号：GB9922345
申请日：1999-09-21
Applicant: LUCENT TECHNOLOGIES INC
Inventor： LUSCHI CARLO , SANDELL MAGNUS , STRAUCH PAUL EDWARD , YAN RAN-HONG
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公开(公告)号：DE60019091D1
公开(公告)日：2005-05-04
申请号：DE60019091
申请日：2000-05-05
Applicant: LUCENT TECHNOLOGIES INC
Inventor： LUSCHI CARLO , KUZMINSKIY ALEXANDR , STRAUCH PAUL EDWARD , YAN RAN-HONG
Abstract: A mobile telephone system includes a base station which establishes a link with a selected mobile station. The received signal from the mobile station will include a noise component as well as a possible interference component from another mobile station operating at the same frequency in another cell. The base station has a trellis based equalisation system which operates on the assumption that the received signal includes components which have a predominantly Gaussian characteristic. A switch controller determines when the interference component (which is non-gaussian) in the received signal becomes a dominant component and operates to switch a spatio-temporal filter into the circuit instead of the trellis based equalisation system, to improve the bit error rate performance.
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