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How Many Logical Channel in LTE ?

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The following control logical channels have been defined by the 3GPP:

BCCH, Broadcast Control Channel, used for the transmission of system control information. A UE needs to decode it before requesting a connection.

PCCH, Paging Control Channel, is a downlink channel that transfers paging information and system information change notifications. This channel is used for paging when the network does not know the location cell of the UE.

CCCH, Common Control Channel is a channel for transmitting control information between UEs and network. This channel is used for UEs having no RRC connection with the network.

DCCH, Dedicated Control Channel is a point-to-point bi-directional channel that transmits dedicated control information between a UE and the network. Used by UEs having an RRC connection.

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MCCH, Multicast Control Channel is a point-to-multipoint downlink channel used for transmitting MBMS control information from the network to the UE, for one or several MTCHs. This channel is only used by UEs that receive MBMS.

The following traffic logical channels have been defined by the 3GPP:

DTCH, Dedicated Traffic Channel, is a point-to-point channel, dedicated to one UE, for the transfer of user information. A DTCH can exist both in uplink and downlink.

MTCH, Multicast Traffic Channel is a point-to-multipoint downlink channel for transmitting traffic data from the network to the UE. This channel is only used by UEs that receive MBMS.

Complete List at Here :

LTE

WCDMA

GSM

CDMA

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