公开(公告)号：JP2001218257A

公开(公告)日：2001-08-10

申请号：JP2000386403

申请日：2000-12-20

Applicant: LUCENT TECHNOLOGIES INC

Inventor： KARIMI HAMID REZA ,  KUZMINSKIY ALEXANDR ,  LUSCHI CARLO ,  SANDELL MAGNUS ,  STRAUCHI PAUL EDWARD ,  YAN RAN-HONG

IPC: H04B7/26 ,  H04J3/06 ,  H04J99/00 ,  H04W16/28 ,  H04Q7/36 ,  H04J15/00

Abstract: PROBLEM TO BE SOLVED: To provide a method for reusing (Same cell reuse: SCR) a frequency within a same cell without assignment of a different signature to an SDMA user, sharing a game physical channel. SOLUTION: This invention introduces a time shift between SDMA users on an uplink and does not introduce it to a downlink.

公开(公告)号：JP2003110474A

公开(公告)日：2003-04-11

申请号：JP2002242781

申请日：2002-08-23

Applicant: LUCENT TECHNOLOGIES INC

Inventor： HUANG HOWARD C ,  MAILAENDER LAURENCE EUGENE ,  SANDELL MAGNUS ,  VISWANATHAN HARISH

IPC: H04J99/00 ,  H04B1/707 ,  H04B7/005 ,  H04B7/06 ,  H04B7/08 ,  H04L1/06 ,  H04L25/02 ,  H04L25/03 ,  H04J15/00

Abstract: PROBLEM TO BE SOLVED: To provide a joint minimum average square error (MMSE) equalizer used for reducing a bit error rate floor that is generated by the dispersion of time in an MIMO system for all combinations of each transmission antenna/ reception antenna that are enabled in the MIMO system. SOLUTION: Resultant joint equalization corrects not only the influence of a channel where a transmission antenna and a reception antenna are combined but also the interference of other transmission antennas to any given reception antennas. The joint equalization shows improved performance as compared with simple reproduction of the minimum average square error (MMSE) equalizer in the conventional technique to the combination of each transmission antenna/reception antenna.

公开(公告)号：JP2001313602A

公开(公告)日：2001-11-09

申请号：JP2001091533

申请日：2001-03-28

Applicant: LUCENT TECHNOLOGIES INC

Inventor： DEMETRESCU CHRISTIAN ,  SAMARAS KONSTANTINOS ,  SAMUEL LOUIS GWYN ,  SANDELL MAGNUS ,  WU JIAN JUN ,  YAN RAN-HONG

IPC: H04L12/28 ,  H04B7/26 ,  H04B14/04 ,  H04L12/56

Abstract: PROBLEM TO BE SOLVED: To provide a method or decoding an uplink status flag(USF) in a radio communication service. SOLUTION: This method for decoding an uplink status flag having reduced interleaving depth in an RLC/MAC block in a GPRS, supplies all uplink status flags to an RT-EGPRS user in the first burst of four bursts, nine bits of the uplink status flag to the EGPRS user in the first burst of the RLC/MAC block and also the rest bit in the next three bursts. A mobile performs autocorrelation on receiving the first nine bits and confirms whether a USF belongs to a EGPRS group or an RT-EGPRS group.

公开(公告)号：JP2000059273A

公开(公告)日：2000-02-25

申请号：JP12016699

申请日：1999-04-27

Applicant: LUCENT TECHNOLOGIES INC

Inventor： LUSCHI CARLO ,  MUJTABA SYED AON ,  SANDELL MAGNUS ,  STRAUCHI PAUL EDWARD ,  YAN RAN-HONG ,  TEN BRINK STEPHAN

IPC: H04L27/01 ,  H04L25/02 ,  H04B7/005 ,  H04L25/03

Abstract: PROBLEM TO BE SOLVED: To obtain an equalizer which has the effect of propagation reduced for the estimation of the channel impulse response of a transmit signal. SOLUTION: The channel impulse response of a signal transmitted over a channel of a communication system is estimated. Previous information regarding a transmit signal is obtained first. Then an estimated value of channel impulse response which minimizes an expected value of the distance between the transmit signal and a reconstituted signal is selected by using the transmit signal and previous information. For example, the minimized distance expected value is a cost function and represented, specially, as E ||r-Bh||2|r}. Here, (r) is a received signal, (h) is a vector representing the channel, and B is a matrix including transmission bits as components. Further, the previous information is obtained through data estimation which is performed for the transmit signal and obtained, specially, by a channel decoder 14. Further, an estimated value by, for example, channel observation is selected.

公开(公告)号：JPH11313037A

公开(公告)日：1999-11-09

申请号：JP1568299

申请日：1999-01-25

Applicant: LUCENT TECHNOLOGIES INC

Inventor： LUSCHI CARLO ,  MUJTABA SYED AON ,  SANDELL MAGNUS ,  STRAUCHI PAUL EDWARD ,  TEN BRINK STEPHAN ,  YAN RAN-HONG

IPC: H03M7/30 ,  H03M13/29 ,  H04B14/04

Abstract: PROBLEM TO BE SOLVED: To provide a device for satisfying the quality of respective different target services by changing the number of times of encoding step repetition for each user. SOLUTION: Concerning the device composed of a signal processing unit 40 and a decoding resource for repeating a process for repeatedly decoding a signal at least once so as to repeatedly decode the signal, the said repeated decoding resource is arranged inside a central pool 41 and when the repeated decoding process is required, this resource is allocated to the signal processing unit 40.

公开(公告)号：DE69910546D1

公开(公告)日：2003-09-25

申请号：DE69910546

申请日：1999-06-11

Applicant: LUCENT TECHNOLOGIES INC

Inventor： ILAS CONSTANTIN ,  KARIMI HAMID R ,  LUSCHI CARLO ,  SANDELL MAGNUS ,  WU JIAN JUN

IPC: H04L25/02 ,  H04B7/005 ,  H04L25/03

公开(公告)号：AU3829400A

公开(公告)日：2000-11-21

申请号：AU3829400

申请日：2000-04-07

Applicant: LUCENT TECHNOLOGIES INC

Inventor： FLEWITT ADRIAN ROBERT ,  LUSCHI CARLO ,  RUMI EMAL DAHAM ,  SANDELL MAGNUS ,  STRAUCH PAUL EDWARD ,  YAN RAN-HONG

IPC: H04L25/02 ,  H04L27/00 ,  H04L27/233

公开(公告)号：AU748151B2

公开(公告)日：2002-05-30

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

IPC: H04B7/26 ,  H04J3/06 ,  H04J99/00 ,  H04W16/28 ,  H04Q7/30 ,  H04L5/22 ,  H04L7/10

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.

公开(公告)号：AU3179700A

公开(公告)日：2001-01-02

申请号：AU3179700

申请日：2000-03-14

Applicant: LUCENT TECHNOLOGIES INC

Inventor： IILAS CONSTANTIN ,  KARIMI HAMID REZA ,  WU JIANJUN ,  SANDELL MAGNUS

IPC: G06F17/16 ,  H04L25/02

公开(公告)号：AU722426B2

公开(公告)日：2000-08-03

申请号：AU1321399

申请日：1999-01-25

Applicant: LUCENT TECHNOLOGIES INC

Inventor： LUSCHI CARLO ,  MUJTABA SYED AON ,  SANDELL MAGNUS ,  STRAUCH PAUL EDWARD ,  BRINK STEPHAN TEN ,  YAN RAN-HONG

IPC: H03M7/30 ,  H03M13/29 ,  H04B14/04 ,  H03M13/00

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.