An easy approach to understand tech specs

Learn to Impress

Fullchipdesign.com - Topics covered in Verilog RTL, Digital Design, Digital Basics, Radio Frequency and Python Scripting.  

UMTS LTE Interfaces

S1-MME : Interface between
S1 = E-UTRAN and MME ( Details on
MME on attached link).

Functionality
1. Supports control between S1 and MME

S1-U : Interface between
S1 = E-UTRAN and U = SGW (click here for details on SGW)

Functionality
1. SAE bearer user plane tunneling
2. Supports Inter eNodeB path switching during handover.

S3 : Interface between
SGSN and MME

Functionality
1. Enables user and bearer information exchange for inter 3GPP access.
2. Network mobility in idle and/or active state.

S4 : Interface between
SGSN and Serving SAE Gateway
Functionality
1. It provides control and mobility support between GPRS Core & 3GPP.
2. Anchor function of Serving GW.
3. Alternate plane tunnel in case of no Direct Tunnel.

Introduction to UMTS LTE  Interfaces between various reference points.  

Part1 Part2 Part3

Hardware components of a smart-phone.
CPU or processor of a cell phone. Operating System or simply O/S RAM, a type of memory and SD Memory Applications for direct user interface.
PIXELS for resolution of screen.

Evolved Packet Core (EPC) system architecture for all IP.Mobility Management Entity (MME), Serving System (S) Architecture (A) Evolution (E) Gateway or Serving Gateway SGW. Packet Data Network (PDN) SAE Gateway
Enhanced Packet Data Gateway (ePDG). Multiple antenna techniques - MIMO, Adaptive antenna systems - AAS and Antenna diversity - AD

LTE topics @ FCD
What is LTE? Key driving factors behind 4G technology.
LTE Data rates and comparison with 3G rates.
Difference between air, radio and core network..  Seamless mobility in 4G.

Resources

Verilog RTL code examples for front-end chip design.
Digital Design Topics
Half-adder, full-adder,
Adder-sub tractor
Stack Organization - LIFO, RPN
Parity Generation and error checking
Binary multiplier circuit.
CMOS introduction
Digital fundamentals -
RTL coding guidelines. ICG cell, Assertions, $assertkill, levels. Chandle
Pipeline vs. Parallel processing.

Media Gallery
Las Vegas
Grand Canyon
Alcatraz -the rock
San Francisco
Napa Valley
Los Angeles
17 Mile Drive
Golden Gate Bridge
Blog- Planning California Trip