초록 ▼

A variable rate transmission system where a packet of variable is transmitted on a traffic channel if the capacity of the traffic channel is greater than or equal to the data rate of the packet. When the rate of the packet of variable rate data exceeds the capacity of the traffic channel, the packet

A variable rate transmission system where a packet of variable is transmitted on a traffic channel if the capacity of the traffic channel is greater than or equal to the data rate of the packet. When the rate of the packet of variable rate data exceeds the capacity of the traffic channel, the packet is transmitted on a traffic channel and at least one overflow channel. Also described is a receiving system for receiving and reassembling the data transmitted on the traffic channel and at least one additional overflow channels.

대표청구항 ▼

[ We claim:] [1.] In code division multiple access (CDMA) communication system, wherein packets of data are transmitted using a plurality of orthogonal code sequences and wherein each user of said code division multiple is allocated an orthogonal code sequence for communication on a traffic channel,

[ We claim:] [1.] In code division multiple access (CDMA) communication system, wherein packets of data are transmitted using a plurality of orthogonal code sequences and wherein each user of said code division multiple is allocated an orthogonal code sequence for communication on a traffic channel, an apparatus for transmitting variable rate packets of data symbols comprising:channel packetizer means for receiving said variable rate packets and, when a number of said data symbols included in ones of said variable rate packets exceeds a threshold value, splitting each of said ones of said variable rate packets into a traffic packet and at least one overflow packet;first modulation means for receiving said traffic packet and for modulating said traffic packet in accordance with said orthogonal code sequence of said plurality of orthogonal code sequences and for modulating said orthogonal modulated traffic packet in accordance with a first psuedorandom noise (PN) sequence;second modulation means for receiving said at least one overflow packet and for modulating said at least one overflow packet in accordance with an orthogonal code sequence of said plurality of orthogonal code sequences and for modulating said at least one orthogonal modulated overflow packet in accordance with at least one additional psuedorandom noise (PN) sequence wherein said at least one additional PN sequence is nonorthogonal to said first PN sequence; andtransmission means for transmitting said traffic packet on said traffic channel and for transmitting at least one overflow packet on said at least one overflow channel.