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    VARIABLE PACKET LENGTHS FOR COMMUNICATIONS WITH A HIGH RATE
    12.
    发明授权
    VARIABLE PACKET LENGTHS FOR COMMUNICATIONS WITH A HIGH RATE 有权
    可变数据包长度用于与高速率

    公开(公告)号：EP1597879B1

    公开(公告)日：2012-05-09

    申请号：EP04712335.1

    申请日：2004-02-18

    申请人： QUALCOMM INCORPORATED

    发明人： SINDHUSHAYANA, Nagabhushana ,  ATTAR, Rashid A. ,  REZAIIFAR, Ramin

    IPC分类号： H04L12/56

    CPC分类号： H04L12/5602 ,  H04L63/162

    摘要： 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.

    RECEIVING STATION WITH INTERFERENCE SIGNAL SUPPRESSION
    13.
    发明授权
    RECEIVING STATION WITH INTERFERENCE SIGNAL SUPPRESSION 有权
    噪声抑制STATION

    公开(公告)号：EP1260029B1

    公开(公告)日：2010-06-02

    申请号：EP00941402.0

    申请日：2000-06-13

    申请人： QUALCOMM INCORPORATED

    发明人： BONACCORSO, Mario ,  LING, Funyun ,  SINDHUSHAYANA, Nagabhushana ,  BLACK, Peter

    IPC分类号： H04B1/707

    CPC分类号： H04B1/7115 ,  H04B1/712 ,  H04B7/0854

    摘要： An optimum combiner that reduces the amount of interference imposed upon a first base station (102) by transmissions of other base stations within the same communication system. Two antennas (112, 114) are used to receive transmissions within a receiving station (110). A rake receiver is coupled to each antenna (112, 114). By optimally combining the signals that are received by each independent finger of the rake receiver, interference that is correlated between a finger associated with the first antenna (112) and a finger associated with the second antenna (114) can be minimized with respect to the desired signal. Optimum combining requires determination of optimum combining coefficients. A max-ratio combining algorithm may be substituted for the optimal combining algorithm depending upon interference characteristics.

    POWER ALLOCATION FOR POWER CONTROL BITS IN A CELLULAR NETWORK
    15.
    发明公开
    POWER ALLOCATION FOR POWER CONTROL BITS IN A CELLULAR NETWORK 审中-公开
    功率分配的功率控制比特在蜂窝网络

    公开(公告)号：EP1547274A2

    公开(公告)日：2005-06-29

    申请号：EP03770653.8

    申请日：2003-10-02

    申请人： QUALCOMM Incorporated

    发明人： ATTAR, Rashid ,  SINDHUSHAYANA, Nagabhushana ,  BLACK, Peter J.

    IPC分类号： H04B7/005

    CPC分类号： H04W52/32 ,  H04W52/325

    摘要： A power allocation value for power control information transmitted from a first station to a plurality of stations is determined by receiving data rate control information from the plurality of stations in a communications system. Supplemental information relating to the data rate control information is then generated, and an improved signal strength value is produced in accordance with the supplemental information. The power allocation value for the power control information transmitted from the first station to the plurality of stations is determined in accordance with the improved signal strength value.

    FREQUENCY-TIMING CONTROL LOOP FOR WIRELESS COMMUNICATION SYSTEMS
    16.
    发明公开
    FREQUENCY-TIMING CONTROL LOOP FOR WIRELESS COMMUNICATION SYSTEMS 有权
    频率控制时间控制回路，无线通信系统

    公开(公告)号：EP1481520A1

    公开(公告)日：2004-12-01

    申请号：EP03739794.0

    申请日：2003-02-12

    申请人： Qualcomm, Incorporated

    发明人： BLACK, Peter, J. ,  SINDHUSHAYANA, Nagabhushana

    IPC分类号： H04L27/00

    CPC分类号： H04L7/0054 ,  H04B2001/70706 ,  H04L7/0025 ,  H04L27/0014 ,  H04L2027/0028 ,  H04L2027/0036 ,  H04L2027/0055 ,  H04L2027/0065

    摘要： A frequency-timing control loop comprising a frequency control loop to acquire and track the frequency of a given signal instance in a received signal and a timing control loop to acquire and track the timing of the same signal instance. The timing control loop processes data samples for the received signal to provide a first control indicative of timing error in the data samples for the signal instance. The frequency control loop includes a frequency discriminator used to derive a second control indicative of frequency error in the data samples for the signal instance, and a loop filter used to filter the first and second controls to provide a third control. This third control is used to adjust the frequency and phase of a periodic signal, which is used (directly or indirectly) to downconvert and digitize the received signal to provide the data samples.