User's Manual

Confidential

Chapter 3 System Structure

LTE eNB System Description v2.0 42

 M3AP function

 SFN SYNC function

 EMCB statistics processing

 MCE troubleshooting

CPS SON Agent Block (CSAB)

The CSAB supports the SON function, which is performed in eNB CPS. It

operates on the master OAM bard.

The major functions of CSAB are as follows:

 Mobility robustness optimization

 RACH optimization

 Mobility load balancing

GPRS Tunneling Protocol Block (GTPB)

The GTPB is the user plane call processing function of eNB. It processes the GTP.

It operates on the master OAM board.

The major functions of GTPB are as follows:

 GTP tunnel control

 GTP management

 GTP data transmission

 SYNC protocol

Trace Management (TrM)

The TrM updates the trace data and Call Summary Log (CSL), which are received

from each software entity (PDCP, MAC and RLC). The updated data is

periodically transmitted to LSM. It operates on the master OAM board.

The major functions of TrM are as follows:

 Signaling based trace

 Cell traffic trace

 CSL function

 Trace data transmission to the Trace Collection Entity (TCE) address

PDCP Block (PDCB)

The PDCB is the user plane call processing function of eNB. It processes the

PDCP.

It operates on the master OAM board.