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    COMPRESSED DELAY PACKET TRANSMISSION SCHEDULING
    34.
    发明专利
    COMPRESSED DELAY PACKET TRANSMISSION SCHEDULING 未知

    公开(公告)号：CA2656859A1

    公开(公告)日：2008-01-17

    申请号：CA2656859

    申请日：2007-05-30

    Applicant: ERICSSON TELEFON AB L M

    Inventor： FRANKKILA TOMAS ,  WAENSTEDT STEFAN ,  ERICSON MARTEN

    IPC: H04L12/56 ,  H04L47/56 ,  H04L47/80 ,  H04W72/12

    Abstract: A packet scheduler reduces or "compresses" the packet transmission delay jitter or delay range where packets experience little or no scheduling delay before transmission. As a result, the number of packets that experience lit tle or no delay is reduced. A preferred example way of compressing the packe t transmission delay jitter is to reduce the transmission priority of low de lay packets. Compressing the delay jitter is particularly desirable for serv ices like VoIP that require low packet transmission delay jitter.

    Low-rate speech coder for non-speech data transmission
    37.
    发明专利
    Low-rate speech coder for non-speech data transmission 未知

    公开(公告)号：AU5857400A

    公开(公告)日：2001-01-02

    申请号：AU5857400

    申请日：2000-05-26

    Applicant: ERICSSON TELEFON AB L M

    Inventor： JANSSON FREDRIK ,  EKUDDEN ERIK ,  HELLWIG KARL ,  FRANKKILA TOMAS

    IPC: G10L11/02 ,  H04L27/30 ,  H04W88/18 ,  H04M11/06

    Abstract: Low rate data signals, such as standard TTY signals and standard DTMF signals, can be effectively analyzed and encoded by speech encoders employed in conventional digital cellular system. This is accomplished by providing a low rate data encoder in the transmission path of the low rate data signal, just prior to the speech encoder used by the digital cellular system. In so doing, the standard, low rate data signal is transformed (i.e., modified) by the low rate data encoder into a signal that is more compatible with the speech encoder. Similarly, a low rate data decoder is provided at the receiving end of the transmission path to decode the modified, low rate data signal.

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