Qualification Scenarios

SCE Qualification (9988)

Summary

Stage

Duration

Link SNR

Offered Traffic / Flow

Mandated Throughput / Flow

0

15 sec

20 dB

NaN

NaN

1

120 sec

20 dB

1.25 Mbps

1.15 Mbps

2

120 sec

15 dB

1.25 Mbps

0.8 Mbps

3

120 sec

10 dB

1.25 Mbps

0.5 Mbps

4

120 sec

5 dB

1.25 Mbps

0.25 Mbps

5

120 sec

20 dB

1.25 Mbps

1.15 Mbps

6

15 sec

20 dB

NaN

NaN

Overview

Version

Practice

RF ID

9988

RF Description

Single tap; large scale

Noise power BW (MHz)

10

Usable BW for transmissions (MHz)

80

Traffic ID

99880

Traffic Description

Streaming UDP

Center Frequency

1000.0 MHz

Number of Incumbent Nodes

0

Number of Competitor Nodes

10

Narrative

Scenario 9988 is a test scenario that supports practice for SCE qualification testing and updates the previous version to implement new Mandated Outcome fields required for compliance with Phase 3 scoring criteria.

The scenario contains 10 nodes arrayed on a hypersphere so that every node has the same propagation loss to every other node. Propagation losses are designed so that per link SNR changes in two minute intervals according to the following schedule:

  • 0:00->2:15: Per link SNR = 20 dB

  • 2:15->4:15: Per link SNR = 15 dB

  • 4:15->6:15: Per link SNR = 10 dB

  • 6:15->8:15: Per link SNR = 5 dB

  • 8:15->10:30: Per link SNR = 20 dB at 1010.0 MHz

Path losses are large scale, single tap only. SNR values assume a 10 MHz RF front end.

A constant 25 Mbps per team is offered per team, which corresponds to 1.25 Mbps per flow with two outbound flows per node (20 flows). This same load is offered for every stage. Traffic starts 15 seconds into the first stage and ends 15 seconds before the end of the scenario.

Mandated outcomes are provided for every stage that correspond to the qualification objectives mapped to a per-flow throughput. Note that this means that in all stages (after an initial 15 seconds for network sync), more traffic is offered than is mandated, with significantly more traffic offered than mandated at the later stages.

Environment Update messages are used to communicated the frequency change in stage 5.

No GPS is provided as a theoretical geometry (hypersphere) is used to create the path losses.

Node Mapping

Position

Label

Node #

1

Competitor

1

2

Competitor

2

3

Competitor

3

4

Competitor

4

5

Competitor

5

6

Competitor

6

7

Competitor

7

8

Competitor

8

9

Competitor

9

10

Competitor

10

Scenario Parameters

Modeled Location

N/A

Scenario Duration

630.0 s

Scenario Repeats at End?

True

Number of Nodes

10

Number of Teams

1

Government Controlled Radios

0

Center Frequency

1000.0 MHz

Max Scenario Bandwidth

80.0 MHz

SRN Separation Range

N/A

Node Mobility

Fixed

Link Reciprocity

True

Self Channel (Gain to Own Antenna)

1

Antenna Pattern

Omni

Number of Antennas Per Node

2

Antenna Spacing

0.1 m

Mandated Outcome Parameters

Traffic Type

TOS

Delay (Sec)

Throughput (Kbps)

Goal Set

Qual_1

0x60

0.37

1000

Qual

Qual_2

0x60

0.5

750

Qual

Qual_3

0x60

0.75

500

Qual

Qual_4

0x60

1

250

Qual

Qual_5

0x60

0.37

1000

Qual

SCE CIL Qualification - Easy 13db Staring Pathloss (9991)

Overview

RF ID

9991

Release Date

2019-08-01 17:03:56.028221

Center Frequency (MHz)

1000.0

Noise power BW (MHz)

40.0

Usable BW for transmissions (MHz)

80.0

Stages

3

Total Length (sec)

630

Stage Lengths (sec)

{‘1’: 195, ‘2’: 210, ‘3’: 225}

Scoring Stage Lengths (sec)

{‘1’: 180, ‘2’: 210, ‘3’: 210}

Number of Competitor Nodes

50

Number of Incumbents

1

Number of Observers

0

RF Description

Single tap; large scale

MCHEM Gains

RX: 7db, TX: 20db

Traffic ID

99910

Traffic Types

BFT, File, VOIP

Scenario Repeats at End?

False

Narrative

Scenario 9991 is an easier version of 9990 where the interference thresholds for the incumbent have been reduced to the point where the incumbent should never complain.

It repurposes the 7025 Passive Incumbent scenario for CIL validation purposes by modifying the stage 2 center frequency to stimulate CIL message reporting.

Only a single team position is populated (excluding the Passive Incumbent) in this scenario so taps from 7025 can be reused.

9991 is:

  • Large scale

  • 50 node

  • Small Packet

  • Formal

Node Assignments

Nodes

Gateway

Team #1

1, 2, 3, 4, 5, 6, 7, 8, 9, 10

1

Team #2

11, 12, 13, 14, 15, 16, 17, 18, 19, 20

11

Team #3

21, 22, 23, 24, 25, 26, 27, 28, 29, 30

21

Team #4

31, 32, 33, 34, 35, 36, 37, 38, 39, 40

31

Team #5

41, 42, 43, 44, 45, 46, 47, 48, 49, 50

41

Incumbents #1

51

51

Mandated Flows

Flow types: BFT, File, VOIP

Flow Counts by Team By Stage

Team

Stage #1

Stage #2

Stage #3

Team #1

70

70

70

Team #2

70

70

70

Team #3

70

70

70

Team #4

70

70

70

Team #5

70

70

70
Flow Types by Stage

Stage #1

Stage #2

Stage #3

VOIP_1, BFT_1, File_1

File_2, VOIP_2, BFT_2

File_3, VOIP_3, BFT_3

Points

Points are accumulated by measurement period. Flows need to be held for the steady state period of 10 seconds in order to count.

Points by Flow Type by MP

Type

Points

BFT

1

File

1

VOIP

1
Scoring Stage Lengths (sec)

Stage #1

Stage #2

Stage #3

180

210

210
Max Points per MP by Team By Stage

Team

Stage #1

Stage #2

Stage #3

Team #1

70

70

70

Team #2

70

70

70

Team #3

70

70

70

Team #4

70

70

70

Team #5

70

70

70
Max Points by Team By Stage (may be more if flows span stages)

Team

Stage #1

Stage #2

Stage #3

Team #1

11900

14000

14000

Team #2

11900

14000

14000

Team #3

11900

14000

14000

Team #4

11900

14000

14000

Team #5

11900

14000

14000

Thresholds

Points earned in a measurement period above the threshold score bonus points.

Stage #1

Stage #2

Stage #3

50

50

50
Threshold Points per MP by Team By Stage

Team

Stage #1

Stage #2

Stage #3

Team #1

35

35

35

Team #2

35

35

35

Team #3

35

35

35

Team #4

35

35

35

Team #5

35

35

35