| 摘要 |
PURPOSE: A method for supplying a multicast service of a wireless communication system is provided to include a TCTF(Target Channel Type Field) in a header of an MAC PDU transmitted by a DSCH(Downlink Shared Channel), thereby perceiving from which logical channel data is transmitted and through which logical channel the data is to be transmitted to a terminal RLC layer. CONSTITUTION: A TCTF enables a terminal to decide whether a DSCH is mapped with dedicated logical channels such as a DTCH(Dedicated Traffic Channel)/DCCH(Data Common Channel) or with a common channel such as a CTCH(Control Channel). The TCTF needs a transport channel through which the dedicated logical channels are mapped with other logical channels. A TCTF of an FACH(Forward Access Channel) identifies whether a mapped logical channel is a BCCH(Broadcast Control Channel), a CCCH(Common Control Channel), a CTCH, or a dedicated logical channel. An RACH(Random Access Channel) of the TCTF identifies whether the mapped logical channel is a CCCH or a dedicated logical channel. A UE ID type field informs of whether a kind of a UE ID is U-RNTI(Radio Network Temporary Identifier), a C-RNTI, a DSCH-RNTI, or an MBMS identifier.
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