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    43.
    发明专利
    未知

    公开(公告)号：DE60111189T2

    公开(公告)日：2006-03-23

    申请号：DE60111189

    申请日：2001-11-19

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： GOPALAKRISHNAN NANDU ,  KADABA SRINIVAS R ,  RUDRAPATNA ASHOK N ,  SUNDARAM GANAPATHY SUBRAMANIAN

    IPC: H04J13/04 ,  H04B7/005 ,  H04W52/26 ,  H04W52/50 ,  H04W72/04 ,  H04W72/12

    Abstract: Efficient data communication in wireless communication system is provided by using centralized control of data communications, such as packet switched services, over the uplink channel (mobile station (MS) to base station (BS)). A multiple access protocol is used where packet data mobile stations make requests for uplink channel resources. The request messages transmitted by the MSs inform the BS of service parameters. Examples of such service parameters are available transmit power at the MS, the amount of data to transmit and Quality of Service (QoS). The BS then processes the received request messages and performs interference management calculations to determine the portion of the BS's receive power budget that can be allocated to the data user requesting service. These calculations are used to control the amount of interference seen at the base station, to assign a data rate to the user and to aid scheduling algorithms in computing service order priorities. Any scheduling algorithm may be used; for example, scheduling may be based on the amount of data to be transmitted, the age of the data or the service priority associated with the mobile station. The interference control is used to prevent the occurrence of catastrophic levels of interference while maximizing the utilization of resources on the uplink.

    45.
    发明专利
    未知

    公开(公告)号：DE60101769T2

    公开(公告)日：2004-11-04

    申请号：DE60101769

    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.

    ADAPTIVE DATA SCHEDULING USING NEIGHBORING BASE STATION LOADINFORMATION FOR TDMA SYSTEMS
    48.
    发明专利
    ADAPTIVE DATA SCHEDULING USING NEIGHBORING BASE STATION LOADINFORMATION FOR TDMA SYSTEMS 未知

    公开(公告)号：CA2351968A1

    公开(公告)日：2002-02-11

    申请号：CA2351968

    申请日：2001-06-29

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： RUDRAPATNA ASHOK N ,  ZEGER LINDA MARLENE

    IPC: H04L12/56 ,  H04W16/14 ,  H04W16/24 ,  H04W24/00 ,  H04W74/04 ,  H04W88/08 ,  H04Q7/36

    Abstract: A telecommunications system having a first base station that utilizes neighboring base station load information to adaptively schedule transmissio ns to mobile devices within the first base station's coverage area. Before transmitting information to a mobile device, the first base station determines whether neighboring base stations causing the most interference to the mobile device have a load below a loading threshold (i.e., if the neighboring base stations are "lightly loaded"). If the first base station determines that the neighboring base stations are lightly loade d, then the neighboring base stations are providing little to no interference to the mobile device at which point, the first base station should transmit to the mobile device wit h high priority. If the first base station determines that the neighboring base stations are not lightly loaded, then the neighboring base stations are providing sufficient interference to the mobile device that transmissions to the mobile device should be given low priority. Thus, the first base station schedules transmissions at times when the transmissions can be made at high data rates, which increases the data rates of the mobile devices and the overall throughput of the system.

    49.
    发明专利
    未知

    公开(公告)号：BR0101648A

    公开(公告)日：2001-12-26

    申请号：BR0101648

    申请日：2001-04-30

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： ZHU PENGFEI ,  RUDRAPATNA ASHOK N ,  LU MING

    IPC: H04L12/56 ,  H04W24/00 ,  H04W72/04 ,  H04Q7/30

    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.

    Method and apparatus for multi-user resource management in wireless communication systems
    50.
    发明专利
    Method and apparatus for multi-user resource management in wireless communication systems 未知

    公开(公告)号：AU4207801A

    公开(公告)日：2001-11-15

    申请号：AU4207801

    申请日：2001-05-04

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： ZHU PENGFEI ,  RUDRAPATNA ASHOK N ,  LU MING

    IPC: H04L12/56 ,  H04W24/00 ,  H04W72/04 ,  H04Q7/20 ,  H04L29/02

    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.

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