User's Manual
Table Of Contents
- INTRODUCTION
- Purpose
- Document Content and Organization
- Conventions
- Revision History
- CHAPTER 1. Samsung LTE System Overview
- CHAPTER 2. System Overview
- CHAPTER 3. System Structure
- CHAPTER 4. Message Flow
- CHAPTER 5. Supplementary Functions and Tools
Ver.
CHAPTER 4. Message Flow
2600-00FKQFGA2
1.0
4.3 Network Sync Flow
The Indoor Pico Cell supports the GPS and IEEE1588v2 synchronization method
selectively. In case of the GPS synchronization, the GPS receiver (BEGEM) receives the
synchronization signal from the GPS and creates clocks. The clocks are distributed by the
clock generation & distribution part.
In case of the IEEE1588v2 packet synchronization, the IEEE1588v2 packet is received
from an external IEEE 1588v2 server for the synchronization.
Figure 23. Network Synchronization Flow
GPS Antenna
GPS
Receiver
IEEE1588v2
Module
Clock
Generation
&
Distribution
IEEE1588v2
Server
SoC
GPS L1 signal
PTP packet
Ethernet
Backhaul
10 MHz
PP2S
10 MHz
1 PPS
System Clock
1 PPS
Indoor Pico Cell
© SAMSUNG Electronics Co., Ltd.
page 61 of 72