Patent ID: 7418273

Claim:
A base transceiver station apparatus comprising: an analyzing means for analyzing a header of an IP packet received by the base transceiver station apparatus; a routing means for transferring said IP packet to another base transceiver station based on a route table when a result of analyzing said header by said analyzing means indicates that said IP packet is not destined for the local base transceiver station, and for transferring said IP packet to a transmitting unit of the local base transceiver station when the result of analyzing said header by said analyzing means indicates that said IP packet is destined for the local base transceiver station; and said transmitting unit including a means for, when transmitting a packet to a mobile node which is communicating with the local base transceiver station, acquiring a base station control packet sent from an RNC via said routing means, and dividing and converting transmission processing information on said mobile node into plural pieces of information in units of TTI in which information is transferred between L 1 and MAC based on said base station control packet, said TTI being equal to a-time interval during which information is transmitted between layers of transport block set, an error correction coding means for inputting said transport blocks into which the transmission processing information is divided and converted, and for error correction coding said transport blocks, a modulating means for inputting the coded data outputted from said error correction coding means, and for modulating the coded data, and a transmitting means for converting digital baseband data which is the modulated, coded data output by said modulation means into an analog baseband signal, for converting a frequency of the analog baseband signal to a transmission carrier frequency, for performing a band limit on the analog baseband signal on the transmission carrier frequency and for amplifying it so that it has desired transmission power, and for separating signals lying within a transmission frequency band and signals lying within a reception frequency band from each other using a duplexer so as to transmit the analog baseband signal on the transmission carrier frequency and having the desired transmission power, as a radio signal, to said mobile node via a transmit/receive antenna.