name: PDCP
full_form: Packet Data Convergence Protocol
context: Figure 5.3.2-1: Protocol Stack for MCCH and MSCH Figure 5.3.2-1 illustrates the protocol termination for MCCH and MSCH in MBMS, which are MBMS p-t-m control channels. MBMS functionalities are included in MAC and RRC. In case of p-t-p transmission, DCCH is used for MBMS and the protocol termination for DCCH mapped on DCH and FACH are presented in [8]. Figure 5.3.2-2: Protocol Stack for MCCH In case MRNC is used, figure 5.3.2-2 illustrates the protocol termination for MCCH in MBMS, which is MBMS p-t-m control channel. MBSFN MCCH Information Control function is split between MRNC and CRNC. The MRNC controls the logical resources of the RNSs that are used for MBSFN operation within the MBSFN cluster(s). The MRNC rms the CRNC of the MCCH configuration (using transfer of MCCH Information Control messages) and schedule rmation to be used (included in RNSAP). The CRNC performs the MCCH configuration and sends the MCCH rmation accordingly.
description: The Packet Data Convergence Protocol (PDCP) manages packet data transmission between the User Equipment (UE) and the network in the Universal Terrestrial Radio Access Network (UTRAN). It handles sequence numbering for PDCP Service Data Units (SDUs) transmitted over the radio interface, ensuring proper ordering and integrity of data.
explanation: The text describes rules for sequence number management in data transmission, indicating a set of defined interactions between entities. This points to PDCP being a protocol that governs communication.
section_title: 5.6.1.1	PDCP Sequence Numbering
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