C-PMSE – Signal detectionSignal detection & scanning networkdocbox.etsi.org/Workshop/GSC/GRSC_WP1_radio_mics... · C-PMSE – Signal detectionSignal detection & scanning network

LTE – Uni Erlangen | eesy-id GmbHc-pmse.research-project.de • [email protected]

C-PMSE – Signal detectionC PMSE Signal detection& scanning network

A research project in co-operationof industry and science

Publicly sponsored by

System Overview

Spectrum Portfolio Manager

Scanning Receiver

SCR 1

Scanning Receiver SCR M

Scanning Receiver

SCR 3

Scanning Receiver

SCR 2

Local Spectrum Portfolio

Management(LSPM)

Information Acquisition and Local Map(IALM)

Information Acquisitionand Local Map

Database SPM(DBF)

(SPM)

GrantableFrequency Sets (GFS)

Scanning Controller (SCC)

Database SCS (DBS)LocalREM

(LREM)

LREMHistory

Location Information SCR

and Local Map

Cognitive Engine(CEN)

Audio Base Station 1

Audio Mobile

Terminal 1

Content Plane

Control Plane

Content Plane (In-Ear Monitors)

Service Level Entry

Radio Link Manager

(RLM)

Frequency Allocation

Table (FAT)

Database C-PMSE(DBC)

Power Allocation

Table (PAT)

Device Allocation

Table (DAT)

Link Parameter Set(LPS)

Terminal 1


Audio Mobile

Terminal 2

Content Plane

Control Plane

C t t Pl(SLE)

Performance Monitor (PMO)

Table (FAT)

Individual REM

Table (PAT)Table (DAT)

Adaptive Modulation/Coding Table

(AMCT)

Sequences of Action

Link Quality Indicator


Audio Mobile

Terminal 3

Content Plane

Control Plane

A diContent Plane

Cognitive PMSEMaster

(IREM)Action(SOA)

Indicator(LQI)

Service Level Agreement

(SLA)

Negotiation Set(NGS)

Audio Base Station N

Audio Mobile

Terminal NControl Plane

CognitiveHistory(COH)

C-PMSE

LTE – Uni Erlangen | eesy-id GmbH07/12/11, Johannes Brendel

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Information Acquisition and Local Map (IALM)

Tasks Benefit IncreasedTasks• Creates an accurate map of the

radio environment• Power over frequency, time

and location

Benefit• Provides information for the

initial frequency planning of the radio links based on current and past measurements

Increased performance

Compared to aand location• Source of the detected signal

power• Provides a map of the local

environment

and past measurements• Observes potential free backup

frequencies (for reactive behavior)

• Observes the frequencies of

Compared to a database-only

approach the IALM increases the

operation reliability environment qthe radio links at different locations (proactive behavior)

of the PMSE links.


3

Information Acquisition and Local Map (IALM)

The IALM

Typically a fix Forming a distributed sensing

The covered area is bigger than the The whole area is

grouped in logicalyp ca y ainstallation distributed sensing

networks b gge a ecoverage of the

PMSE linksgrouped in logical

zones


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Distributed Spectrum Sensing Network

Why can the IALM increase the operation reliability of the PMSE links?Why can the IALM increase the operation reliability of the PMSE links?

1 Proactive behavior1. Proactive behavior


5

Distributed Spectrum Sensing Network

2 I d i l d t ti b bilit2. Increased signal detection probability

Problem ofIncrease the

detection probability by

macro di it

Problem of detecting

narrow band signals due to

fading t h t

Frequency selective

fading

Strong multipath scattering

Indoor channel

diversitynotches up to 30dB.

-60

SCR 2SCR 1-60

-70

-80

-70

-80

-90

-100

-90

-100


6

Hardware Configuration

H d li tiHardware realization


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Scanning Receiver (SCR)• Digital and analog part • Calculates PSD (power spectral density)• Signal classification

• differentiate between stationary and mobile signal sources• increase the signal detection performance due to processing

gain

Scanning Controller (SCC)• Execute the measurement requests of the CENq

• Check for new measurement queries in the database• Perform the measurement with the SCR in the requested zone• Store the measurement results in the database

• Execute periodic history scans when no CEN is connectedExecute periodic history scans when no CEN is connected• Scans the whole frequency band in all zones each 10 seconds• Combine entries which are older than 1 hour


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Si l i t ll ti

Connections over

• Simple installation• Usage the existing

infrastructureover Ethernet • Power over Ethernet

(PoE) to supply the SCRs

• CEN SCC: data

Standard

• CEN SCC: data exchange only over the database in the SCC with SQLProtocols with SQL

• SCC SCR: SCPI commands for data exchange

LTE – Uni Erlangen | eesy-id GmbH

exchange07/12/11, Johannes Brendel

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SCC - Database

Th D t b i th SCC i th t l t f th IALMThe Database in the SCC is the central storage of the IALM.

In the "measurement request table” the CEN stores the measurements which should be performed:

Parameter Unit DescriptionParameter Unit Descriptionid - Sequential number of the entryzone_id - Which zone should be measuredmqry status id - The state of the measurement requestq y_ _ qfreq_start Hz Start frequencyfreq_end Hz Stop frequencyquality - Quality of the measurements, 0: bad but fast… 10: y y

accurate but slow.meas_repeats - How often should the measurement be repeatedmeas_interval ms Interval of the measurements for meas_repeats > 1meas_count - Measurement counter for meas_repeats > 1classify - Signal classification requested (yes/no)meas_request Timestamp Timestamp of the measurement request


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SCC - Database

Th “ t lt t bl ” t i th lt f th t dThe “measurement result table” contains the results of the requested measurements:

Parameter Unit Descriptionid - Sequential number of the entryscr_id - Gives the assignment, which SCR performed this

measurementmqry_id - Gives the assignment to which request this measurement

belongs to; refers to „measurement request table“belongs to; refers to „measurement request tablefreq Hz Frequencypeak_power dBm Peak-power,rms power dBm RMS-powerrms_power dBm RMS powerstart_time Timestamp Timestamp of measurement startend_time Timestamp Timestamp of measurement stopn avg - Number of averages of the measurementn_avg - Number of averages of the measurementsignal_id - Recognized technology


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LTE – Uni Erlangen | eesy-id GmbHc-pmse.research-project.de • [email protected]

C-PMSE – Scanning receiverC PMSE Scanning receiver

A research project in co-operationof industry and science

Publicly sponsored by

RF Environment

GSM 900 (DL): 56dBm / 400WLTE (UHF/DL): 56dBm / 400W (urban)LTE (UHF/DL): 64dBm / 2,5kW (rural)

LTE (UL/fixed): 36dBm / 4WLTE (UL/portable): 20dBm / 0,1W

80d

GSM (UL): 33dBm / 2W

DVB-T: up to >80dBm up to >100kW

[1,2]

LTE – Uni Erlangen | eesy-id GmbH07/12/11, Rafael Rummel

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Distance between „Jammer“ and Rx

DVB T Berlin Fernsehgarten 3 5km 9km 14km• DVB-T Berlin Fernsehgarten 3,5km,9km,14km• DVB-T München Olympiapark ≥250m • BOS Berlin Fernsehgarten ≥200m • GSM BTS ≥25m• Handhelds ≥2m

[1]


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[1]

Typical DVB-T Tx-Antenna Pattern

Horizontal radiation pattern Vertical radiation patternHorizontal radiation pattern Vertical radiation pattern

[3]


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[3]

Loss between „Jammer“ and Rx

S• Free Space Modell• One-Ray, vacuum, LOSy, ,

• Ideal Ground Modell• Two-Ray (Ground Reflection), vacuum, LOS

• Shadowing ModellShadowing Modell• Okumura Hata Modell• Ikegami Walfish Modell

[4]


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[4]

DVB-T power level at Rx-antennaService Frequency Power Distance Tx-antenna LevelService Frequency Power Distance Tx-antenna Level

DVB-TAlex

K27522MHz

120kW ERP82dBm EIRP

9km* -0dB -23,7dBm

DVB-T Schäferberg

K25506MHz

50kW ERP79dBm EIRP

14km* -0dB -30,2dBm

DVB-T K27 20kW ERP 3,5km* -3dB -25,5dBmScholzplatz 522MHz 75dBm EIRP

DVB-TMünchen

K34578MHz

100kW ERP82dBm EIRP

250m -25dB -18,4dBm

PMSE 470-862MHz 17dBm EIRP 2m -0dB -14,9dBm

[1 5 6]* Distance to Messe Berlin (Messedamm Masurenallee)


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[1,5,6]* Distance to Messe Berlin (Messedamm - Masurenallee)

GSM/LTE power level at Rx-antennaService Frequency Power Distance Tx-antenna LevelService Frequency Power Distance Tx-antenna Level

GSM (DL) BTS 925-960MHz 56dBm EIRP 25m -15dB -18,7dBm

GSM (UL)* 880-915MHz 33dBm EIRP 2m -0dB -4,4dBmGSM (UL) 880 915MHz 33dBm EIRP 2m 0dB 4,4dBm

LTE (DL) BTS 791-821MHz 56dBm EIRP 25m -15dB -17,4dBm

LTE (UL) fixed 832-862MHz 36dBm EIRP 4m -5dB -9,4dBm(U ) 83 86 36d 5d 9, d

LTE (UL)handheld

832-862MHz 20dBm EIRP 2m -0dB -14,4dBm


Fixed LTE Devices have to be carefully attended to!

* GSM Blocking Filters can reduce power level up to 25dB [1 5 6]


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* GSM Blocking Filters can reduce power level up to 25dB [1,5,6]

SRD, BOS, TETRA, PMR power level at Rx-antennaService Frequency Power Distance Tx-antenna LevelService Frequency Power Distance Tx-antenna Level

SRD 868-870MHz 27dBm EIRP 2m -0dB -10,2dBm

PMR* 446MHz 30dBm EIRP 2m -0dB -1,4dBmPMR 446MHz 30dBm EIRP 2m 0dB 1,4dBm

BOS (DL)* 440-450MHz 57dBm EIRP 50m -10dB -12,3dBm

BOS (UL)* 440-450MHz 43dBm EIRP 10m -0dB -2,3dBmOS (U )mobile

0 50 3d 0 0d ,3d

TETRA (DL) 460-470MHz* 46dBm EIRP 50m -10dB -23,7dBm

TETRA (UL) 450 460MH * 40dB EIRP 10 0dB 5 5dBTETRA (UL)mobile

450-460MHz* 40dBm EIRP 10m -0dB -5,5dBm

TETRA (UL)handheld

450-460MHz* 35dBm EIRP 2m -0dB +3,5dBmhandheld


[1 5 6]* EU-Band (in DL 380-395MHz)* Filtering possible


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[1,5,6]* Filtering possible

Ham-Radio, RFID power level at Rx-antennaService Frequency Power Distance Tx-antenna LevelService Frequency Power Distance Tx-antenna Level

HAM* 430-440MHz 750W EIRP59dBm EIRP

50m -0dB -0,3dBm

HAM*handheld

430-440MHz 8W EIRP39dBm EIRP

2m -0dB +7,9dBm

RFID 865-868MHz 20dBm EIRP 2m -0dB -17,2dBm

RFID 866-868MHz 33dBm EIRP 10m -0dB -18,2dBm


* Filtering possible [1 5 6]


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* Filtering possible [1,5,6]

Rx –Architecture (RF-Section)


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Rx –Architecture (1st IF-Section)


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Rx –Architecture (2nd IF-Section)


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Rx –Architecture (Overview)


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Questions ?

AcknowledgementThe C-PMSE project is co-funded by the

German Federal Ministry of Economics and Technology (BMWi)German Federal Ministry of Economics and Technology (BMWi)

07/12/11, Johannes Brendel | Rafael Rummel25

Quellenverzeichnis

[1] www wikipedia de[1] www.wikipedia.de

[2] www.chip.de

[3] www.d-no.de

[4] Deinert, F.: Seminar Technische Informatik, „Mathematische Modelle zur Wellenausbreitung für die Simulation drahtloser Netze“, 2006

[5] Bundesnetzagentur, Frequenznutzungsplan, August 2011

[6] www.elektrosmog.de/Frequenzplan.htm


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Documents

C-PMSE – Signal detectionSignal detection & scanning networkdocbox.etsi.org/Workshop/GSC/GRSC_WP1_radio_mics... · C-PMSE – Signal detectionSignal detection & scanning network