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    Variable packet lengths for high packet data rate communications
    54.
    发明专利
    Variable packet lengths for high packet data rate communications 未知

    公开(公告)号：AU2004213992B2

    公开(公告)日：2009-09-17

    申请号：AU2004213992

    申请日：2004-02-18

    Applicant: QUALCOMM INC

    Inventor： ATTAR RASHID A ,  SINDHUSHAYANA NAGABHUSHANA ,  REZAIIFAR RAMIN

    IPC: H04L12/56

    Abstract: Method and apparatus for variable length Physical Layer (PL) packet generation. Multiple Security Layer (SL) packets may be multiplexed into a single PL packet to increase efficiency, wherein the SL packets may have variable lengths. In one embodiment, different format SL packets for different users are combined into capsules that form the PL packet. Shorter packets are for users in poor channel conditions or requiring smaller amounts of data due to the applications and the accompanying Quality of Service (QoS) requirements. In one embodiment, a modified Preamble structure provides for Unicast or multi-user packets. Alternate embodiment provides modified Rate Sets, a mechanism for identifying ACK from a single-user packet or a multiplexed packet (delayed ACK). ON/OFF keying for ACK channel v/s bi-polar keying used in IS-856, and/or multi-valued interpretation of DRC.

    ФОРМИРОВАНИЕ СКОРОСТИ БЕСПРОВОДНОЙ СВЯЗИ
    55.
    发明专利
    ФОРМИРОВАНИЕ СКОРОСТИ БЕСПРОВОДНОЙ СВЯЗИ 未知

    公开(公告)号：RU2367116C2

    公开(公告)日：2009-09-10

    申请号：RU2005118103

    申请日：2003-11-07

    Applicant: QUALCOMM INC

    Inventor： ATTAR RASHID A ,  LOTT KRISTOFER ZH

    IPC: H04L12/56 ,  H04W28/22 ,  H04W72/08

    Abstract: Изобретениеотноситсяк назначениюскоростипередачиданныхобратнойлиниисвязи (RL) всистемевысокоскоростнойпередачиданных (1×EV-DO) какфункциикачестваканалапрямойлиниисвязи (FL). Достигаемыйтехническийрезультат - созданиеметода, оптимизирующегомаксимумпропускнойспособностии приемлемоекачествообслуживания. Формированиепрофиляскоростейдлямножестватерминаловдоступа (ATs) выполняетсяпосредствомкорректировкивероятностейперехода, связанныхс алгоритмомраспределенияскоростейпередачиданных. Всоответствиис изобретениемопределяюткачествоканалапрямойлиниисвязи; выбираютвероятностьпереходаскоростипередачиданных, связаннуюс указаннымопределеннымкачеством; генерируютслучайноечислодлясравненияс выбраннойвероятностьюперехода; увеличиваюттекущуюскоростьпередачиданныхобратнойлиниисвязи, еслислучайноечисломеньше, чемвыбраннаявероятностьперехода. Приэтомтекущаяскоростьпередачиданныхобратнойлиниисвязименьшеилиравнамаксимальнойскоростипередачиданныхобратнойлиниисвязи, определеннойкакфункциякачестваканалапрямойлиниисвязи. 3 н. и 11 з.п. ф-лы, 9 ил.

    56.
    发明专利
    未知

    公开(公告)号：AT429792T

    公开(公告)日：2009-05-15

    申请号：AT06737399

    申请日：2006-03-07

    Applicant: QUALCOMM INC

    Inventor： ATTAR RASHID A ,  BLACK PETER J ,  BHUSHAN NAGA

    IPC: H04W28/18 ,  H04L12/28 ,  H04W72/04

    Abstract: A method and system for de-coupling forward and reverse link assignment for multi-carrier wireless communication systems. A method may assign two or more forward link code division multiple access (CDMA) carriers to transmit data from a base station to an access terminal; assign one or more reverse link CDMA carriers to transmit data from the access terminal to the base station; and limit reverse link overhead transmissions corresponding to the two or more forward link CDMA carriers.

    Method and apparatus for estimating power required for transmission of data at a rate in a communication system
    57.
    发明专利
    Method and apparatus for estimating power required for transmission of data at a rate in a communication system 未知

    公开(公告)号：AU2003234882C1

    公开(公告)日：2009-01-22

    申请号：AU2003234882

    申请日：2003-03-04

    Applicant: QUALCOMM INC

    Inventor： BLACK PETER J ,  SINDHUSHAYANA NAGABHUSHANA ,  ATTAR RASHID A

    IPC: H04J13/00 ,  H04B7/005 ,  H04B7/26 ,  H04L1/00 ,  H04L29/08

    Abstract: Methods and apparatus for estimating maximum rate of data and for estimating a transmission power required for transmission of a data with a rate of data in a communication system are disclosed. A terminal determines a quality metric of a communication link, over which data are to be transmitted, and modifies the determined quality metric by a quality metric margin. The terminal then estimates the maximum rate of data in accordance with the modified quality metric. Alternatively, the terminal then estimates transmission power required for transmission of a data with a rate of data in accordance with the rate of data and the modified quality metric. The quality metric margin may be pre-determined or dynamically adjusted. The terminal dynamically adjusts the quality metric margin in accordance with a result of comparison of a transmit power corresponding to the estimated maximum rate of data with an actual transmit power used to transmit the data.

    Method for transmission power control based on evaluation of a reverse activity bit and data flow specific upward/downward ramping functions, and corresponding wireless access terminal
    59.
    发明专利
    Method for transmission power control based on evaluation of a reverse activity bit and data flow specific upward/downward ramping functions, and corresponding wireless access terminal 未知

    公开(公告)号：NZ544739A

    公开(公告)日：2008-02-29

    申请号：NZ54473904

    申请日：2004-07-15

    Applicant: QUALCOMM INC

    Inventor： LOTT CHRISTOPHER G ,  BHUSHAN NAGA ,  ATTAR RASHID A ,  AU JEAN PUT LING ,  GHOSH DONNA

    IPC: H04B7/005 ,  H04L1/00 ,  H04W52/24 ,  H04W52/26 ,  H04W52/34 ,  H04W52/50 ,  H04W72/08 ,  H04L12/56 ,  H04Q7/32

    Abstract: An access terminal (206) is configured for wireless communication with an access network (204) within a sector (1032) is disclosed. The access terminal (206) includes a transmitter (2608) for transmitting a reverse traffic channel to the access network (204), an antenna (2614) for receiving signals from the access network (204), a processor (2602) and memory (2604) in electronic communication with the processor (2602). Instructions are stored in the memory (2604). The instructions are arranged to estimate a current value of a reverse activity bit (1444) transmitted by the access network (204). If the estimated current value of the reverse activity bit indicates that the sector is busy, a current power allocation for each flow of a plurality of flows is decreased on the access terminal. The magnitude of the decrease for a particular flow is determined according to a downward ramping function that is designed for the flow, the downward ramping function being a function of the current power allocation for the flow. If the estimated current value of the reverse activity bit indicates that the sector is idle, the current power allocation for each flow of the plurality of flows is increased on the access terminal. The magnitude of the increase for a particular flow is determined according to an upward ramping function that is designed for the flow, the upward ramping function being a function of the current power allocation for the flow.

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