What are the logical channels through which Pbch is carried through?

There are three different channel types defined in LTE – logical channels, transport channels, and physical channels, each associated with a service access point (SAP) between different layers. These channels are used by the lower layers of the protocol stack to provide services to the higher layers.

There are three types of logical channels: traffic channels (TCHs), control channels (CCHs), and the cell broadcast channel (CBCH) .

3.3. According to the 3GPP standards [14], the logical channel types are: Broadcast Control Channel (BCCH), Paging Control Channel (PCCH), Common Control Channel (CCCH), Dedicated Control Channel (DCCH), Multi-cast Control Channel (MCCH), Dedicated Traffic Channel (DTCH), and Multicast Traffic Channel (MTCH).

1.1 Logical Control Channels: Common Control Channel (CCCH) – common to multiple UE’s . Dedicated Control Channel (DCCH) – used to transmit dedicated control information for a particular UE . Multicast Control Channel (MCCH) – used for transmit information for Multicast reception.

A logical channel is defined by the type of information it carries and is generally classified as a control channel, used for transmission of control and configuration information necessary for operating an LTE system, or as a traffic channel, used for the user data.

A physical radio channel is a radio frequency or pair of frequencies that is allocated by the regulatory body to an agency for communication . Simply put, this means in direct radio to radio communication the same frequency may be used for reception and transmission.