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    ROUTING METHOD TO BE USED FOR PACKET NETWORK
    1.
    发明专利
    ROUTING METHOD TO BE USED FOR PACKET NETWORK 失效

    公开(公告)号：JP2001268127A

    公开(公告)日：2001-09-28

    申请号：JP2000346176

    申请日：2000-11-14

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： ZHANG HONG ,  AHMED WALID ,  KODIALAM MURALIDHARAN SAMPATH ,  MONOGIOUDIS PANTELIS ,  REGE KIRAN M

    IPC: H04B7/26 ,  H04B7/204 ,  H04L12/28 ,  H04L12/56 ,  H04W40/20 ,  H04W40/30 ,  H04W48/08 ,  H04W64/00 ,  H04W84/18 ,  H04Q7/34

    Abstract: PROBLEM TO BE SOLVED: To provide a new routing protocol of Ad-Hoc network. SOLUTION: In this method, a source node holds the position information, routing information of all nodes inside a local node topology and the rough position information of partial nodes outside the local topology. When it is necessary for the source node to transmit a packet to a destination node inside the local topology, the routing information is already provided. When it is necessary for the source node to transmit a packet to a destination node outside the local topology, however, which node inside the local topology is closest to the destination node is specified while using the rough position information of the destination node. When this specified node is not the source node, the source node transmits the packet to the specified node and transmits the packet to the destination node later. In the other case, the packet is dropped.

    COMMUNICATION METHOD AND COMMUNICATION UNIT
    3.
    发明专利
    COMMUNICATION METHOD AND COMMUNICATION UNIT 失效

    公开(公告)号：JP2001292098A

    公开(公告)日：2001-10-19

    申请号：JP2001046369

    申请日：2001-02-22

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： MONOGIOUDIS PANTELIS ,  REGE KIRAN M ,  SAMPATH ASHWIN

    IPC: H04L1/00 ,  H04B7/005 ,  H04B7/26 ,  H04J13/00 ,  H04W52/12 ,  H04W52/20 ,  H04W52/22 ,  H04W52/24

    Abstract: PROBLEM TO BE SOLVED: To realize a reverse-link outer loop power control(ROLPC) based on a bit error rate BER that has adaptive compensation with respect to a BER target and takes the difference between the mean value and the median of the BER into account in a wireless communication system. SOLUTION: In the case of carrying out the ROLPC based on a BER after decoding, a user metric target is changed as a function of the 'signature' of a communication channel. The base station utilizes the ROLPC system using the BER after decoding for the user metric target. The ROLPC system uses either of an instantaneous value of the BER and a value weakly filtered to compare the target SNR with the target BER for the adjustment. The target BER value is changed as a function of a secondary statistic of the received SNR (e.g. variance, standard deviation). The secondary statistic of the received SNR represents the signature of a communication channel.

    METHOD TO BE USED FOR WIRELESS END POINT AND DEVICE TO BE USED FOR WIRELESS SYSTEMS
    4.
    发明专利
    METHOD TO BE USED FOR WIRELESS END POINT AND DEVICE TO BE USED FOR WIRELESS SYSTEMS 审中-公开

    公开(公告)号：JP2002319926A

    公开(公告)日：2002-10-31

    申请号：JP2002042899

    申请日：2002-02-20

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： MONOGIOUDIS PANTELIS ,  REGE KIRAN M

    IPC: H03M13/01 ,  H04L1/00 ,  H04L1/20

    Abstract: PROBLEM TO BE SOLVED: To provide a capability for estimating QoS watched from an end user by providing a method and a device for estimating a bit error rate in respect to a bearer service to use a convolution coding scheme. SOLUTION: In a universal mobile telecommunication system(UMTS) based system, a wireless receiver performs 'effective signal-to-noise (Eb /No ) based BER estimation'. Especially, the wireless receiver is provided with a rake receiver, a processor and a memory. The rake receiver processes a received signal and provides an S/N value in respect to each of slots in each of receiving frames of the received signal. The processor converts such an S/N value in respect to each of receiving frames to an effective S/N value in respect to the received signal. Then, the processor uses the effective S/N value as a pointer or index in respect to a look-up table (stored in the memory) and retrieves a BER estimate value therefrom.

    PREAMBLE DETECTOR FOR CDMA RECEIVER
    6.
    发明专利
    PREAMBLE DETECTOR FOR CDMA RECEIVER 失效

    公开(公告)号：JP2001230703A

    公开(公告)日：2001-08-24

    申请号：JP2000381196

    申请日：2000-12-15

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： BHATOOLAUL DAVID LAHIRI ,  MONOGIOUDIS PANTELIS

    IPC: H04B1/707 ,  H04B7/26

    Abstract: PROBLEM TO BE SOLVED: To provide a device for inverse spread of a code series in a CDMA receiver and for preamble detection. SOLUTION: The receiver inside a code division multiple access(CDMA) communication system adopts this preamble detector for a random access channel (RACH, for instance). The RACH uses an orthogonal Gold code(OGC) series for a preamble signature series and/or spreads the preamble signature series by the OGC series. The preamble detector adopts fast orthogonal Gold transformation(FOGT) so as to inversely spread the preamble signature series (taking correlation with code numbers C1-C256, for instance) and also to generate a judgment statistic for detecting (identifying) the signature series used inside the preamble. The spread signals of the RACH are added to a code matching filter (CMF) matching a spread OGC series and the output signals of the CMF are sampled at a symbol rate. Fast Hadamard transformation(FHT) is applied to the sampled output of the CMF.

    SISTEMA DE REALIMENTACION Y AJUSTE DE TASA SIMETRICO PARA COMUNICACIONES INALAMBRICAS.
    9.
    发明专利
    SISTEMA DE REALIMENTACION Y AJUSTE DE TASA SIMETRICO PARA COMUNICACIONES INALAMBRICAS. 未知

    公开(公告)号：ES2236141T3

    公开(公告)日：2005-07-16

    申请号：ES01304723

    申请日：2001-05-29

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： GOPALAKRISHNAN NANDU ,  HU TECK H ,  KHAN FAROOQ ULLAH ,  KOGIANTIS ACHILLES GEORGE ,  MONOGIOUDIS PANTELIS ,  SAMPATH ASHWIN

    IPC: H04L1/00 ,  H04L1/12

    Abstract: Un método para determinar una tasa de datos para un canal de comunicaciones de enlace descendente compartido por una pluralidad de unidades inalámbricas (AT) para comunicación con una estación base (BS), en el que se adapta dicha tasa de datos (R1-R3 en 22a-q) basándose en información de realimentación (R1-R3 en 20a- e) de al menos una de las unidades inalámbricas (AT), caracterizándose dicho método por: recibir, a una tasa de realimentación, información de realimentación (R1-R3 en 20a-e) de al menos una unidad inalámbrica dada para calcular la tasa de datos (R1-R3 en 22a-q); y adaptar, a una tasa de adaptación diferente de la tasa de realimentación, dicha tasa de datos basándose en dicha información de realimentación, para que al menos la unidad inalámbrica dada la use en dicho canal de comunicaciones de enlace descendente.

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