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    2.
    发明专利
    未知

    公开(公告)号：AT415020T

    公开(公告)日：2008-12-15

    申请号：AT04250920

    申请日：2004-02-20

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： VASUDEVAN SUBRAMANIAN ,  YANG YUNSONG ,  ZHANG WENFENG

    IPC: H04L1/00 ,  H04L1/08 ,  H04B7/005

    Abstract: A system and method for transmitting and receiving control information over a control channel of a wireless communication system where the conveyed information is coded and then transformed by a set of transform function selected from a plurality of sets of transform functions. The control information is transmitted as replicated sub-frames containing replicated code words and such a string of transformed replicated code words is referred to as a control message. At a receive end inverse transform functions from different sets of functions are applied to a sub-frame of a control message so that if the sub-frame is successfully decoded the inverse transform function applied to such frame allows the timing of the control message to be determined.

    5.
    发明专利
    未知

    公开(公告)号：BRPI0710164A2

    公开(公告)日：2011-08-23

    申请号：BRPI0710164

    申请日：2007-04-18

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： ROSSETTI DAVID ALBERT ,  VASUDEVAN SUBRAMANIAN ,  ZOU JIALIN

    IPC: H04W28/18 ,  H04W52/02 ,  H04W88/02

    Abstract: An access terminal supports both a longer wakeup period and a shorter wakeup period (lower frequency of wakeups and higher frequency of wakeups, respectively) where the time interval over which the short wakeup period is active is prescheduled or enabled based on needs. Thus, when paging of the access terminal is expected to occur within a known interval of time, the access terminal enters a standby mode and is awoken more frequently during that interval.

    6.
    发明专利
    未知

    公开(公告)号：BRPI0714154A2

    公开(公告)日：2012-12-25

    申请号：BRPI0714154

    申请日：2007-07-12

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： VASUDEVAN SUBRAMANIAN

    IPC: H04L27/26 ,  H04B1/707 ,  H04L5/02

    Abstract: A hybrid multi-mode mobile station makes a decision either to encode and modulate a new user data packet using the same OFDMA or pre-coded CDMA mode used for the last retransmission of a previous packet or to switch modes based on inputs of a measured average transmission power of the previous packet and a Signal-to-Interference plus Noise Ratio (SINR) as determined from measurements made by the base station and either directly reported to the mobile station or calculated by the mobile station from measurements made by the base station that are reported back to the mobile station.

    8.
    发明专利
    未知

    公开(公告)号：DE602004017802D1

    公开(公告)日：2009-01-02

    申请号：DE602004017802

    申请日：2004-02-20

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： VASUDEVAN SUBRAMANIAN ,  YANG YUNSONG ,  ZHANG WENFENG

    IPC: H04L1/00 ,  H04L1/08 ,  H04B7/005

    Abstract: A system and method for transmitting and receiving control information over a control channel of a wireless communication system where the conveyed information is coded and then transformed by a set of transform function selected from a plurality of sets of transform functions. The control information is transmitted as replicated sub-frames containing replicated code words and such a string of transformed replicated code words is referred to as a control message. At a receive end inverse transform functions from different sets of functions are applied to a sub-frame of a control message so that if the sub-frame is successfully decoded the inverse transform function applied to such frame allows the timing of the control message to be determined.

    10.
    发明专利
    未知

    公开(公告)号：DE60310467T2

    公开(公告)日：2007-09-27

    申请号：DE60310467

    申请日：2003-02-18

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： KNISELY DOUGLAS N ,  VASUDEVAN SUBRAMANIAN ,  YAN YUNSONG ,  ZHANG WENFENG

    IPC: H04J13/04 ,  H04W36/08 ,  H04W36/30

    Abstract: A method for switching cells by a mobile equipment of a communication system. The mobile transmits a signal coded with a spreading code indicating the mobile's intent to switch cells and the coded information also identifies to which cell the mobile wants to switch. The coded information contains channel measurement adjustment information that is continuously transmitted to the cell which is currently serving the mobile. The flow of channel measurement adjustment information is therefore not disturbed by the application of the method of the present invention. Because the coded information identifies the target cell and indicates the mobile's intent to perform a cell switching procedure, the amount of processing done by the cells is significantly reduced thus increasing the likelihood of a successful switching procedure.

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