Gradiant - Technology Offer in LTE

GALICIAN RESEARCH AND DEVELOPMENT CENTER IN ADVANCED TELECOMMUNICATIONS

Research in LTE

March 2013

Contact: Jorge Munir <[email protected]>

CENTRO TECNOLÓXICO DE TELECOMUNICACIÓNS DE GALICIA

LTE in Gradiant: an Overview

Key technologies LTE Physical Layer (Release 8 and beyond). Quality and performance system parameters. Prototyping of RF subsystems

HW and SW Resources Agilent SW and HW tools for generating and analyzing LTE frames. Agilent SW tools for simulating and validating PHY & MAC layer designs. SW & HW Small Cell LTE Release 8 and 9 (R&D License of MimoOn) Algorithms for downlink LTE Frame transmission and reception.

Project participation National projects. Under contract.

Organization of events The Satellite Role in the Mobile Communications Arena, Vigo, June 2012 Workshop in Emergency Communications, Vigo, January 2012.


Expertise in LTE

Design and implementation of digital communications algorithms for LTE UE Receivers. • Quality and performance parameters for testing.

Gradiant has participated in first LTE Field Trials in Galicia • June 2012: R (Regional carrier).

• October 2012: Telefonica (National carrier) – Alcatel-Lucent (Provider).

Coexistence between LTE and DVB-T

Matlab Release 8 LTE Frame Generator (limited features).

Generation & Measurement equipment

Procesamiento Base

MIMO Detector

Frequency Offset

Compensator

PSS

Processing

& Detection

Mode Detection

(normal/extended)

*Non-blind detection*

Fractional CFO

Estimator

Windowing/CP

RemovalFFT RB demapper

Integer CFO

Estimator

RS Extraction

Channel

Estimation

SSS DetectionTDD/FDD Mode

detector

Mode Detection

(normal/extended)

*Blind detection*

Downsampling

filter

Channel

Equalization

So

ft d

em

od

ula

tor

8

bit

Layer

Demapper

De

scra

mb

ling

CB

se

gm

en

tatio

n:

tra

nsitio

n fro

m

OF

DM

wis

e to

CB

-wis

e

pro

ce

ssin

g

HARQ Support & Rate

Matching:

HARQ soft buffer for

S1, P1, P2.

Subblock interleaver.

Soft-Combiner 8 bit,

RVs.

Tu

rbo

de

co

de

r

CB

CR

C

CB

Co

nca

ten

atio

n

TB

CR

C

+

Cell-ID Extraction

& Verification

Antena ports

Other CW


Analog Design and Prototyping

RF prototype development.

PCB design and prototyping.

Development of RF circuits (LNA, VCOs, PLLs, DDSs, Mixers, Filters, etc).

Analog-Digital interfaces.

Signal conditioning.

Location and correction of EMI problems.

Design, implementation and characterization of antennas.


HW and SW Resources

Hardware • Equipment

• Agilent PXA9030 Signal Analyzer (BW up to 40MHz). • Agilent E4438C ESG Vector SignalGenerator.

• Packets: LTE-FDD, LTE-TDD, WiMAX Mobile.

• HW Platforms for LTE MIMO • Azcom platform (Turbo Nyquist DSP). • Advantech platform (Appleton DSP) • RF Frontend for LTE band 1 (TSW3725EVM)

Software • Tools

• Agilent Signal Studio for Signal Creation • Packets: LTE Release 8, 9 and 10 (FDD and TDD), WiMAX Mobile.

• Agilent 89600B VSA for Software Measurement Acquisition. • Agilent 89600 WLA (MAC layer complement to VSA). • Agilent SystemVue

• Packets: LTE and LTE-A Verification, MIMO, DPD (Digital Pre-Distorsion), EQ, C++

• IP Blocks • LTE Release 8 & 9 eNB

• Physical Layer, Stack and Scheduler (provider: MimoOn (Germany)).


Participation in first LTE Field Trials in Galicia (Spain)

WIMOVE: Equipment for Mobile Wireless Technology • Under contract, 2010-2012

CORAGE: Cognitive Radio Generation • Spanish consortium, public funding, 2009-2010

Project Cases


Organization of Events

Regular lectures by prominent visitors:

Laurent Franck (Telecom Bretagne), “Emergency Communications”, January 2012

Gonzalo Seco (Universidad Autonoma de Barcelona), “Evaluation of LTE positioning capabilities”, April 2012.

Markus Rupp (Vienna University of Technology), “The Performance of 3G and 4G Cellular Systems”, September 2012.

Gradiant - Technology Offer in LTE

Technology

Transcript of Gradiant - Technology Offer in LTE