中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

54 records (took 0.022 seconds)

    31.
    发明专利
    未知

    公开(公告)号：AT271286T

    公开(公告)日：2004-07-15

    申请号：AT03005755

    申请日：2001-03-19

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： GOPALAKRISHNAN NANDU ,  JOSHI NIRANJAN SUDHIR ,  KADABA SRINIVAS R ,  KOGIANTIS ACHILLES GEORGE ,  RUDRAPATNA ASHOK N ,  SUNAY MEHMET OGUZ ,  SUNDARAM GANAPATHY SUBRAMANIAN ,  VITEBSKY STANLEY

    IPC: H04B7/005 ,  H04B7/26 ,  H04W52/22 ,  H04W52/24 ,  H04W52/26 ,  H04W52/34 ,  H04W52/54

    Abstract: Disclosed is a method of integrating voice and data services onto a same frequency channel using available transmit power information to determine data rates, wherein the available transmit power information indicates an amount of transmit power available for future data transmissions over one or more data channels. In a "distributed" embodiment, a transmitter or base station transmits, via a forward link, an available power message to a receiver or mobile-telephone indicating an amount of available transmit power at some future time t+z. The mobile-telephone performs signal-to-interference measurements corresponding to the received forward link and received interference, and uses such signal-to-interference measurements and the available power message to determine a data rate that can be supported by the mobile-telephone. Preferably, the determined data rate corresponds to a maximum data rate at which a minimum level of quality of service can be achieved at the mobile-telephone. In a "centralized" embodiment, the mobile-telephone transmits the signal-to-interference measurements to the base station, and the base station determines the data rate based on the available transmit power at future time t+z.

    32.
    发明专利
    未知

    公开(公告)号：AT257988T

    公开(公告)日：2004-01-15

    申请号：AT01302473

    申请日：2001-03-19

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： GOPALAKRISHNAN NANDU ,  JOSHI NIRANJAN SUDHIR ,  KADABA SRINIVAS ,  KOGIANTIS ACHILLES GEORGE ,  RUDRAPATNA ASHOK N ,  SUNAY MEHMET OGUZ ,  SUNDARAM GANAPATHY SUBRAMANIAN ,  VITEBSKY STANLEY

    IPC: H04B7/005 ,  H04B7/26 ,  H04W52/22 ,  H04W52/24 ,  H04W52/26 ,  H04W52/34 ,  H04W52/54

    Abstract: Disclosed is a method of integrating voice and data services onto a same frequency channel using available transmit power information to determine data rates, wherein the available transmit power information indicates an amount of transmit power available for future data transmissions over one or more data channels. In a "distributed" embodiment, a transmitter or base station transmits, via a forward link, an available power message to a receiver or mobile-telephone indicating an amount of available transmit power at some future time t+z. The mobile-telephone performs signal-to-interference measurements corresponding to the received forward link and received interference, and uses such signal-to-interference measurements and the available power message to determine a data rate that can be supported by the mobile-telephone. Preferably, the determined data rate corresponds to a maximum data rate at which a minimum level of quality of service can be achieved at the mobile-telephone. In a "centralized" embodiment, the mobile-telephone transmits the signal-to-interference measurements to the base station, and the base station determines the data rate based on the available transmit power at future time t+z.

    LOCATION BASED ADAPTIVE ANTENNA SCHEME FOR WIRELESS DATA APPLICATIONS
    35.
    发明专利
    LOCATION BASED ADAPTIVE ANTENNA SCHEME FOR WIRELESS DATA APPLICATIONS 未知

    公开(公告)号：CA2351981A1

    公开(公告)日：2002-02-14

    申请号：CA2351981

    申请日：2001-06-29

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： RUDRAPATNA ASHOK N

    IPC: H04B7/26 ,  H04B7/06 ,  H04B7/08 ,  H04Q7/38 ,  H04B7/005 ,  H04Q7/36

    Abstract: A system is provided for adapting and customizing a reverse link beam and a forward link beam that couple a particular mobile unit with a base station f or transmitting/receiving data. The forward and reverse links may be dynamicall y customized for changing data rate requirements, changing position of the mobile unit relative to the base station, and changing SNR. According to one aspect of t he invention, a plurality of adaptive antenna elements for the forward and reverse links are located at the base station. In addition to conventional beam forming hardware, the beam forming circuitry of each antenna are coupled to a mobile location detector for detecting the location of a mobile unit with which the base station is communicating. Once the location of the mobile unit has been determined, the beamformer steers a customized narrow, high gain beam toward that mobile unit to form the desire d link.

    36.
    发明专利
    未知

    公开(公告)号：BR0001581A

    公开(公告)日：2000-12-19

    申请号：BR0001581

    申请日：2000-04-11

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： GIARDINA CHARLES ROBERT ,  RUDRAPATNA ASHOK N

    IPC: H04K3/00 ,  H04J11/00 ,  H04J13/00 ,  H04J13/12

    Abstract: The method enhances security for transmission of information by utilizing systems of Quasi-Walsh functions to provide a high resilience against jamming and interception and in addition allows multiple access and acquisition.It switches among generalized systems of Quasi-Walsh functions at some rate r, where r may be either a fixed or a variable value not equal to zero. An independent claim describes a method of transmitting bits for an ith user.

    38.
    发明专利
    未知

    公开(公告)号：DE602005004751T2

    公开(公告)日：2009-02-12

    申请号：DE602005004751

    申请日：2005-12-15

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： OZAROW LAWRENCE HOWARD ,  RUDRAPATNA ASHOK N ,  SHARMA NARESH

    IPC: H04B7/005 ,  H04W52/08

    Abstract: The present invention provides a method for reducing transmitted energy based on early decoding. The method includes accessing a first portion of a block including a plurality of symbols indicative of an encoded message. The first portion has been transmitted at a first transmission power and having less than all of the plurality of symbols. The method also includes attempting to decode the encoded message using the first portion of the block, determining whether the encoded message was decoded, and providing an indication of a second transmission power in response to determining that the encoded message was decoded.

    39.
    发明专利
    未知

    公开(公告)号：DE60136033D1

    公开(公告)日：2008-11-20

    申请号：DE60136033

    申请日：2001-04-30

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： LU MING ,  RUDRAPATNA ASHOK N ,  ZHU PENGFEI

    IPC: H04L12/56 ,  H04W24/00 ,  H04W72/04

    Abstract: A method and apparatus are provided for dynamically controlling a high speed wireless communication system to optimize utilization of system resources and thereby increase system throughput. The invention operates to determine an allocation of wireless transmission resources to each user application served by the wireless system in a manner to optimize transmission resources while meeting required QoS criteria for the served user application. After all user applications have been provided a transmission resource allocation in this manner, the total transmission resources so allocated are determined and compared with a ceiling transmission resource level for the wireless system. A portion of the difference between the ceiling and currently allocated transmission resource levels is then made available, according to the invention, to the served user applications in proportion to the initial allocation provided each user application.

    40.
    发明专利
    未知

    公开(公告)号：DE602005004751D1

    公开(公告)日：2008-03-27

    申请号：DE602005004751

    申请日：2005-12-15

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： OZAROW LAWRENCE HOWARD ,  RUDRAPATNA ASHOK N ,  SHARMA NARESH

    IPC: H04B7/005 ,  H04W52/08

    Abstract: The present invention provides a method for reducing transmitted energy based on early decoding. The method includes accessing a first portion of a block including a plurality of symbols indicative of an encoded message. The first portion has been transmitted at a first transmission power and having less than all of the plurality of symbols. The method also includes attempting to decode the encoded message using the first portion of the block, determining whether the encoded message was decoded, and providing an indication of a second transmission power in response to determining that the encoded message was decoded.

Patent Agency Ranking