CDA EVM9 Bedienungsanleitung

Stöbern Sie online oder laden Sie Bedienungsanleitung nach Nein CDA EVM9 herunter. EDGE - Agilent Technologies [en] Benutzerhandbuch

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ڜ൸଩ร؄ࡻ
8960 ࠌشृᜤᓩᄎ
2004ڣ7ִ20ֲ
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Inhaltsverzeichnis

Seite 1 - 2004ڣ7ִ20ֲ

ڜ൸଩ร؄ࡻ8960 ࠌشृᜤᓩᄎ2004ڣ7ִ20ֲ

Seite 2 - ᒵۡԊ௦গ౰ࠢጡဴȂષڥᆩၯ։ਢൢቋ൐

Air Interface - Time Slot FormatAir Interface - Time Slot Format8

Seite 3 - Technology

Air Interface - Spectrum• EDGE is spectrum compatible with GSM, i.e. it uses the same 200 kHz channel spacingGSM Air Interface• Uses 0.3GMSK modulatio

Seite 4 - EDGE Business Potential ?!

EDGE Air Interface - Modulation• 8-PSK modulation is used for high data rates• Signal trajectory will pass through the origin• High peak-to-average ra

Seite 5 - EDGE Architectures

GMSK Modulation constellations1. EDGE coding schemes MCS1-4 (this is not the same as GPRS CS1-4)2. Uses GMSK modulation 3. 1 bit per symbol4. Constant

Seite 6 - EDGE Outdoor Base Station

EDGE :Packet HandlingEDGE: Packet Handling•Another improvement that has been made to the EDGE standard is the ability to retransmit a packet that has

Seite 7 - Changes!! Air Interface

Link Quality Control:LA (Link Adaptation)– select the MCS that gives a maximum throughput for certain C/IIR (Incremental Redundancy)– Packet is sent

Seite 8

Link Adaptation. Example• MCS-9 carries 2 RLC blocks @ 74 byte each• Retransmission using MCS-6• For further retransmission, 74byte block will besegme

Seite 9 - Coding Scheme Comparison

Incremental RedundancyThe purpose of incremental redundancy is to increase throughput by minimising the amount of redundant data sent OTA by:• Only se

Seite 10

Incremental Redundancy – Example using MCS-9• The original data is 1/3 coded and then punctured in three ways. The first TX is sent if in error 2nd is

Seite 11 - GSM Air Interface

II. Design Challenges in EDGE MobileMMIProtocolModemRFDSPmicro-controllerAll of the considerations which previously applied to GPRS also apply to EGP

Seite 12 - 3S/8 radians

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Seite 13

There are also new or more complex considerations for 8PSK and EGPRS:• (TX) Amplifier linearity, efficiency - thermal/battery again, but this time MU

Seite 14 - EDGE: Packet Handling

2. Non-Linearity of modulation (EDGE)• with EDGE, overcome non-linearity by using (1) feedback or (2) pre-distortion or (3) both• most techniques re

Seite 15 - Link Quality Control:

There are also new test considerations for EDGE• Receiver must now demodulate 8PSK - BER/BLER• New Test Connection type – SRB• Possible asymmetric cod

Seite 16

GSM/GPRS GMSK EGPRS 8PSKOutput Power over useful part of burst Not data dependent Use Random Data Spectrum due to Modulation Yes Different Mask (one

Seite 17 - Incremental Redundancy

GMSKMeasurements – Tx Power and Power Vs Time8PSK using real deviceMeasurements – Tx Power and Power Vs Time22

Seite 18

• GMSK PFER - Constant amplitude, simple phase rotation, phase and frequency measurement• EDGE 8PSK Modulation Accuracy• Amplitude component added to

Seite 19

Measurements – Mod AccBit Error Rate (BER)• Instrument sends data to device, device loops back data, sent/received data is compared in instrument and

Seite 20

• EGPRS can have different modulation formats (GMSK/8PSK) on uplink and downlink• Not generally practical for manufacturing test, and does not need to

Seite 21 - EGPRS TEST considerations

Data Connection Type - SRB3GPP TS 04.14 V8.4.0 (2002-07), Release 1999, Section 5.5How does Agilent BLER operate, why does this affect 8PSK measuremen

Seite 22 - Challenges

How does Agilent BLER operate, why does this affect 8PSK measurements? • 3. To generate a measurable uplink, the mobile station is polledevery block (

Seite 23 - Tx Power and Power Vs Time

UnderstandingEDGETechnologyfor mobile designMichael Leung Chartered Engineer, M.I.E.E.Senior Application ConsultantWireless Communicationmichael-hf_le

Seite 24

1.GSM/GPRS/EGPRS Test Strategy1. Testing GSM only, do not test GPRS/EGPRS- There are many changes in physical layers in GPRS.( e.g. PLL/LO timing, 2

Seite 25 - EDGE - Error Vector Magnitude

GSM/GPRS Test StrategyTypical GSM Test plan- Under dual-band or tri-band modeLower Channel : TX + RX testsMiddle Channel: Major TX tests Upper Cha

Seite 26 - Measurements – BER/BLER

1㪘㪾㫀㫃㪼㫅㫋㩷㪫㪼㫊㫋㩷㪪㫆㫃㫌㫋㫀㫆㫅㩷㪧㫉㫆㫍㫀㪻㪼㫊㩷㪜㪽㪽㫀㪺㫀㪼㫅㫋㩷㪩㪝㩷㪚㫆㫅㪽㫆㫉㫄㪸㫅㪺㪼㫆㪽㩷㪮㪄㪚㪛㪤㪘㩷㪟㪸㫅㪻㫊㪼㫋Agilent Template Tutorial15 April, 2002Agilent RestrictedPage 2AgendaRequirem

Seite 27 - Data Connection Type - SRB

2Agilent Template Tutorial15 April, 2002Agilent RestrictedPage 3Requirements for RF Parametric Test SolutionsSupport of multiple radio technologies on

Seite 28

3Agilent Template Tutorial15 April, 2002Agilent RestrictedPage 5Technical Issues in RF Parametric TestWide frequency range and wide dynamic range for

Seite 29 - Considerations

4Agilent Template Tutorial15 April, 2002Agilent RestrictedPage 7New Frequency Assignment for W-CDMA in 800MHz Band (Band VI)䇭䇭Band VI was newly assign

Seite 30 - GSM/EDGE Test Strategy

5Agilent Template Tutorial15 April, 2002Agilent RestrictedPage 9Hard Handover using Compressed modeFrame 1 Frame 2 Frame 4Transmit PowerFrame 3 inComp

Seite 31 - End of Presentation

6Agilent Template Tutorial15 April, 2002Agilent RestrictedPage 115.7 Power Setting in uplink compressed modeThis test case requires to measure UE tran

Seite 32 - Agilent Restricted

7Agilent Template Tutorial15 April, 2002Agilent RestrictedPage 13Triggers are generated at the timing of CFN0, CFN3 and CFN6 from System SimulatorUEEx

Seite 33 - Test Solutions

8Agilent Template Tutorial15 April, 2002Agilent RestrictedPage 15Actual Measurement Example of Uplink Compressed modePattern A Test (CFN0,1,2)TPC:01--

Seite 34 - Handover and Compressed Mode

I. What is EDGE? (Enhanced Data GSM Evolution)http://www.gsmworld.com/technology/edge/operators.shtmlEDGE Business Potential ?!2

Seite 35 - Handover and Compressed mode

9Agilent Template Tutorial15 April, 2002Agilent RestrictedPage 17UMTS-FDD Band II䋬III䋬IV䋬V and VIGS-8800 is covering all UMTS-FDD bands (I ~ VI)GSM Mo

Seite 36 - Upper Layer Scheduling

10Agilent Template Tutorial15 April, 2002Agilent RestrictedPage 19RF Interface: Conceptual DiagramE8247C PSGE4445A PSAE5515C RFTest SetE4438C ESGTAS 4

Seite 37 - Gap Length Pattern Length

11Agilent Template Tutorial15 April, 2002Agilent RestrictedPage 21System RF Path Loss Management from 9kHz to 12.75GHzRequirements from standard core

Seite 38 - Overview of test sequence

12Agilent Template Tutorial15 April, 2002Agilent RestrictedPage 23Last Feet is the Most Important, thoughFixturing and characterization of fixture are

Seite 39 - RF Signal Routing

13Agilent Template Tutorial15 April, 2002Agilent RestrictedPage 25GS-8800 System HardwareSignalAnalysis(E4445A PSA)Out-of-BandInterference(E8247C PSG)

Seite 40 - • Modular design approach

14Agilent Template Tutorial15 April, 2002Agilent RestrictedPage 27GS-8800 GCF W-CDMA Validation ScheduleGCF Certification Target- Current available te

Seite 41 - Internal Filter Bank

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Seite 42 - Calibration

EDGE As An Evolution Path to 3G• EDGE was first proposed to ETSI • Feasibility study was completed in 1997 and approved by ETSI• EDGE satisfies the 38

Seite 43 - Combiners/Dividers

EDGE Architectures & Interfaces EDGE Outdoor Base StationUser Plane Protocols (Not much changes!)•The protocols that are influenced by the

Seite 44 - GS-8800 Test Case Coverage

Changes!! Air Interface• GMSK modulation is maintained for certain data rates• 8-PSK modulation with 3 /8 rotation per symbol is used for higher da

Seite 45 - TS 34.121

• After a certain operating point (SIR level), GPRS transmission rate saturates. So, EDGE introduces a new modulation scheme (8-PSK) to drive data rat

Seite 46 - ઔಘᄎᝑᆠՀሉΚ

Coding Scheme Comparison•The graph shows both GPRS and EDGE coding schemes with their max. throughputs.• GPRS user throughput reaches saturation at a

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