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    COLLISION RECOVERY SIGNAL PROCESSING UNIT USED WITH MULTIPLE ACCESS COMMUNICATION CHANNEL
    2.
    发明专利
    COLLISION RECOVERY SIGNAL PROCESSING UNIT USED WITH MULTIPLE ACCESS COMMUNICATION CHANNEL 失效

    公开(公告)号：JP2001292484A

    公开(公告)日：2001-10-19

    申请号：JP2001038614

    申请日：2001-02-15

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： KUZMINSKIY ALEXANDR ,  LUSCHI CARLO ,  SAMARAS KONSTANTINOS

    IPC: H04B7/005 ,  H04B7/26 ,  H04L1/00 ,  H04L1/06 ,  H04L12/56 ,  H04W28/04 ,  H04W74/08 ,  H04Q7/38

    Abstract: PROBLEM TO BE SOLVED: To provide a method for solving collision through the use of an acquisition system and to provide a device to perform this method. SOLUTION: The collision recovery signal processing unit 48 of this invention has an antenna 50 having branches, time spatial filter means 52, 54 that are respectively configured to estimate a signal received by the antenna through the reception of different sequences of a training type symbol TLS so as to provide corresponding object signals SC1-SCM, and a signal selector 56 that is configured to select one signal or more from the object signals in compliance with a prescribed criterion. The prescribed criterion means a distance of the object signal from a finite alphabet or a mean square error among the object signals. The time spatial filter means 52, 54 perform an algorithm or a semi- blind algorithm on the basis of the same training.

    CELLULAR WIRELESS COMMUNICATION SYSTEM
    3.
    发明专利
    CELLULAR WIRELESS COMMUNICATION SYSTEM 失效

    公开(公告)号：JP2002009678A

    公开(公告)日：2002-01-11

    申请号：JP2001124024

    申请日：2001-04-23

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： KUZMINSKIY ALEXANDR ,  LUSCHI CARLO ,  STRAUCHI PAUL EDWARD ,  YAN RAN-HONG

    IPC: H04B1/10 ,  H04B7/005 ,  H04B7/08 ,  H04B7/26 ,  H04L1/06 ,  H04L1/20 ,  H04L25/03

    Abstract: PROBLEM TO BE SOLVED: To provide a wireless communication system that can overcome both the noise and interference faults. SOLUTION: At least one of a mobile station and a base station in the wireless communication system is provided with receivers 6, 8 that receives a data signal, an attached noise propagated from a station with which linking is set up, an interference signal propagated from a station in other cell, an equalization system 12 on trellis basis, that acts like detecting a data symbol coming from a faulty part which accompanies a distorted reception signal, a spatial-time filter 14 that processes the received signal minimizing distortion of data and a fault (C), and a changeover device 10 that responds to a prescribed criterion relating to a power of the interference signal in the received signal and a power of the noise signal (D) and the received signal is switched between the equalization system 12 on trellis basis and the spatial-time filter 14.

    5.
    发明专利
    未知

    公开(公告)号：DE602005001603D1

    公开(公告)日：2007-08-23

    申请号：DE602005001603

    申请日：2005-11-15

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： KARIMI HAMID REZA ,  KUZMINSKIY ALEXANDR ,  LEUNG KIN K

    IPC: H04L12/28 ,  H04L1/16 ,  H04L12/56 ,  H04W16/28 ,  H04W80/00 ,  H04W84/12 ,  H04W92/10

    Abstract: The present invention provides a method and an apparatus for communicating data over a network between a communication node, for example, an access point having a first and a second antenna and a first and a second mobile station. The method comprises weighting a first data at the access point to transmit the first data using the first and second antennas so that the first mobile station only receives the first data and weighting a second data at the access point to transmit the second data using the first and second antennas so that the second mobile station only receives the second data. A space division multiple access (SDMA) module may cause a transmission protocol to transmit the first data to the first mobile station on the downlink and transmit the second data to the second mobile station in parallel to the transmission of the first data on the downlink. In a telecommunication system, this substantially simultaneous transmission of the first and second data using a similar carrier frequency in a radio frequency communication over a wireless local area network (WLAN) may increase throughput of a downlink, for example, by a factor nominally equal to the number of antennas at an access point.

    6.
    发明专利
    未知

    公开(公告)号：DE60019091T2

    公开(公告)日：2006-02-02

    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

    IPC: H04B1/10 ,  H04B7/005 ,  H04B7/08 ,  H04B7/26 ,  H04L1/06 ,  H04L1/20 ,  H04L25/03

    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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