User's Manual

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Chapter 1 Samsung LTE System Overview
LTE eNB System Description v2.0 8
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Figure 4. Protocol Stack between eNB and S-GW User Plane
Figure 5. Protocol Stack between eNB and MME Control Plane
Inter-eNB Protocol Stack
The two eNBs are connected physically through FE and GE method, and the
connection specification should satisfy LTE X2 interface.
The following figure shows the inter-eNB user plane protocol stack: