Title:
`Document Number:
`Ed./Rev.:
`Date
`
`Simulation Plan - Work Package 21B
`DARS-FHG-FSDC-721-140000
`01.01
`9.11.98
`
`DARS System
`System Engineering
`
`Simulation Plan
`Work Package 21B
`
`DARS-FHG-FSDC-721-140000
`
`Revision 01
`
`Edition 01
`E. Eberlein
`9 November 1998
`
`Responsibility
`
`Date
`
`09.11.98
`
`Signature
`
`Configuration Manager
`
`Project Manager
`
`Author:
`Date:
`
`Name
`
`Prepared by
`E. Eberlein
`Approved by
`H. Heß
`Released by
`S. Meltzer
`
`© Fraunhofer Gesellschaft IIS - 1998
`
`DARS_031721_0101_SIM_PLAN_21.doc
`
`Page 1 of 9
`
`The information contained in this document is proprietary to FhG-IIS and shall not be disclosed by the recipient to third persons without the written consent of the company
`
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`

`

`Title:
`Document Number:
`Ed./Rev.:
`Date
`
`Simulation Plan - Work Package 21B
`DARS-FHG-FSDC-721-140000
`01.01
`9.11.98
`
`Revision Index
`
`Ser/Rev
`
`Date
`
`Authorized
`by
`
`Change Record
`
`01.01
`
`09.11.98
`
`Initial Version
`
`Author
`
`ebl
`
`© Fraunhofer Gesellschaft IIS - 1998
`
`DARS_031721_0101_SIM_PLAN_21.doc
`
`Page 2 of 9
`
`The information contained in this document is proprietary to FhG-IIS and shall not be disclosed by the recipient to third persons without the written consent of the company
`
`Fraunhofer Ex 2054-p 2
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`

`

`Title:
`Document Number:
`Ed./Rev.:
`Date
`
`Simulation Plan - Work Package 21B
`DARS-FHG-FSDC-721-140000
`01.01
`9.11.98
`
`1 Table of Contents
`
`1
`2
`3
`4
`4.1
`4.2
`4.3
`
`Table of Contents
`Scope
`Related Documents
`Work package Description
`Theoretical analysis (Step 1)
`Validation using broadcast channel data only (Step 2)
`Step 2B & 3: Processing at TDM level, Validation using channel
`models
`
`3
`4
`4
`5
`5
`7
`
`9
`
`© Fraunhofer Gesellschaft IIS - 1998
`
`DARS_031721_0101_SIM_PLAN_21.doc
`
`Page 3 of 9
`
`The information contained in this document is proprietary to FhG-IIS and shall not be disclosed by the recipient to third persons without the written consent of the company
`
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`

`

`Title:
`Document Number:
`Ed./Rev.:
`Date
`
`2 Scope
`
`Simulation Plan - Work Package 21B
`DARS-FHG-FSDC-721-140000
`01.01
`9.11.98
`
`The method "split 3/8 convolutional code" was added to the simulation work
`package 21 (= diversity combining before/within Viterbi).
`This document shall describe the additional work items related to this subject.
`
`3 Related Documents
`
`[RD1] DARS-FHG-FDDB-630-140000 Simulation Plan
`[RD2] Simulation Work Package 21: Two TDM Diversity (STEL document, no
`document number available)
`[RD3] E. Eberlein: Memo "Diversity Combining within Viterbi", 26/10/98
`
`© Fraunhofer Gesellschaft IIS - 1998
`
`DARS_031721_0101_SIM_PLAN_21.doc
`
`Page 4 of 9
`
`The information contained in this document is proprietary to FhG-IIS and shall not be disclosed by the recipient to third persons without the written consent of the company
`
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`

`

`Title:
`Document Number:
`Ed./Rev.:
`Date
`
`Simulation Plan - Work Package 21B
`DARS-FHG-FSDC-721-140000
`01.01
`9.11.98
`
`4 Work package Description
`
`It is proposed to perform the work in the following steps:
`• Step 1: Theoretical analysis (e.g. literature search)
`• Step 2: Validation at broadcast channel level using SV2 data
`• Step 2B (if necessary): validation including full TDM
`If the weighting is based on the broadcast channel and/or level
`information (e.g. AGC values) only this step is not required. A simulation
`setup using
`• Step 3: Validation with additional channel parameters using the multi-state
`satellite channel model.
`
`After step 2 a first estimate of the gain for different SV2 scenarios shall be
`available. Step 2B and 3 may help for further optimization. Step 1 and 2 shall
`be finalized until beginning of December. The results of phase 2B and 3 shall
`be available for the CDR meeting.
`
`4.1
`
`Theoretical analysis (Step 1)
`
`The proposed algorithms shall be analyzed in theory first. The analysis shall
`give the expected performance for different scenarios. If the performance
`can't be estimated in theory the critical parameters for the simulation shall be
`identified.
`The following questions shall be addressed during the analysis:
`• Puncturing pattern
`• Gain for different scenarios:
`The gain can be estimated by comparing the method to the performance
`of a QPSK system with time interleaver and code rate 3/8 for a Rician
`channel.
`• Overall gain
`(e.g. service availability for the scenario "Kurt-Schuhmacher Strasse" as
`function of the link margin -> the required link margin can be defined for a
`required service availability).
`• Viterbi decoder implementation
`• Survivor length
`• metric calculation
`• Channel state estimation
`• Required time resolution
`• Signal quality estimation algorithms based on:
`• QPSK scatter (at output of demod)
`
`© Fraunhofer Gesellschaft IIS - 1998
`
`DARS_031721_0101_SIM_PLAN_21.doc
`
`Page 5 of 9
`
`The information contained in this document is proprietary to FhG-IIS and shall not be disclosed by the recipient to third persons without the written consent of the company
`
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`

`

`Title:
`Document Number:
`Ed./Rev.:
`Date
`
`Simulation Plan - Work Package 21B
`DARS-FHG-FSDC-721-140000
`01.01
`9.11.98
`
`• signal/noise level estimation
`• BER estimation (e.g. by re-encoding of Viterbi output)
`• weighting factor derived from MRC like algorithm
`
`• AGC
`
`• AGC time constant
`• upper limit for gain
`
`The goal of the analysis shall be:
`• Definition of parameters which have a significant impact on the
`performance
`• Proposals for parameter settings for the simulation
`• Performance estimates for different scenarios
`• Definition of "best guess algorithm"
`
`The following items are related to step 1:
`
`Item
`
`Analysis of "is processing at broadcast
`channel bitrate sufficient" or is the full
`TDM bitrate required for the channel state
`estimation.
`Proposals for combining algorithms
`
`Definition of "best guess" algorithm
`Simulation "take list"
`
`Deliverable
`
`• Memo
`
`• Memo
`
`• Memo
`• Memo
`
`Due
`date
`Nov 17
`
`Responsibl
`e
`STEL
`
`Nov 17
`
`Nov 24
`Nov 24
`
`FhG and
`STEL
`STEL
`STEL
`
`The simulation "take list" can be compared to the "take list" for the SV2
`recording. The list shall include the parameters used for the simulation.
`
`© Fraunhofer Gesellschaft IIS - 1998
`
`DARS_031721_0101_SIM_PLAN_21.doc
`
`Page 6 of 9
`
`The information contained in this document is proprietary to FhG-IIS and shall not be disclosed by the recipient to third persons without the written consent of the company
`
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`
`

`

`Title:
`Document Number:
`Ed./Rev.:
`Date
`
`Simulation Plan - Work Package 21B
`DARS-FHG-FSDC-721-140000
`01.01
`9.11.98
`
`4.2
`
`Validation using broadcast channel data only (Step 2)
`
`Note: It is assumed that the channel state estimation can be derived from the
`broadcast channel data and/or the AGC value. If the theoretical analysis
`shows that processing of the full TDM bit rate is required or give significant
`better performance step 2B may have higher priority. In this case the work
`plan shall be adapted accordingly.
`If the broadcast channel are sufficient a simplified COSSAP setup is
`sufficient for the simulation. Figure 4.1 gives an overview to the setup1.
`
`Channel
`
`Delay
`
`Viterbi
`encoder
`
`Mux+
`Depunc
`
`Split 3/8
`convolutional
`encoder
`
`Delay
`
`Delay
`
`Error Vector Data
`
`Figure 4-1: Simulation setup for step 2
`
`The error vector data are derived from the SV2 recording. Optional a channel
`model can be used.
`Note: One SV2 recording for each scenario is available only. The two error
`vectors shall be different, but shall have a high correlation for the states
`(LOS, shadowing, blockage). The two error vectors can be derived from one
`error vector by a time shift (e.g. delay >> coherence time of channel, e.g. 50
`ms). Optional the two error vectors can be derived from different broadcast
`channels.
`The simulation is running at the broadcast channel data rate. The setup is
`sufficient if all information can be derived from the broadcast channel data.
`The following methods can be tested using this setup:
`
`
`1 A setup with no delay and a "time shifted" error vector is equivalent.
`
`© Fraunhofer Gesellschaft IIS - 1998
`
`DARS_031721_0101_SIM_PLAN_21.doc
`
`Page 7 of 9
`
`The information contained in this document is proprietary to FhG-IIS and shall not be disclosed by the recipient to third persons without the written consent of the company
`
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`Sirius v Fraunhofer
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`

`

`Title:
`Document Number:
`Ed./Rev.:
`Date
`
`Simulation Plan - Work Package 21B
`DARS-FHG-FSDC-721-140000
`01.01
`9.11.98
`
`• No weighting before Viterbi
`• channel state estimation based on scatter diagram
`• channel state estimation based on BER estimation
`• MRC like algorithms using broadcast channel data only
`
`Note: The error vector is derived from the QPSK demodulator output data. In
`the simulation setup the error is inserted after the QPSK demodulator. No
`QPSK modulation/demodulation is required for the setup. If other effects like
`ACI shall be included into the setup a full simulation chain is required (see
`step 3). It is recommended to run these simplified "stand-alone" setup first to
`get initial results a.s.a.p. No update of the TDM multiplexing/de-multiplexing
`modules is required.
`The development of a full setup is subject of step 3.
`To test algorithm using signal strength information the data can be derived
`from the field strength measurements recorded in parallel with the QPSK
`data. Details of a setup using the field strength information in parallel are
`TBD.
`
`The following items are related to step 2.
`
`Item
`SV2 data processing
`(COSSAP demod, DMUX
`using DTA, Error-Vector
`calculation)
`
`Build simulation
`framework according
`figure 4-1
`Implement combining
`algorithms,
`Run simulations
`
`Deliverable
`Error vector for scenarios
`• Kurt-Schumacher Strasse
`• Blockage by bridges
`• Sub-urban
`• COSSAP setup
`
`Due date
`Nov 17
`
`Responsible
`FhG
`
`Nov 20
`
`STEL (TBC)
`
`• Description of algorithms
`• COSSAP setup
`• Summary of results
`
`Dec 4
`(Preliminary
`results
`earlier?)
`
`STEL (TBC)
`
`•
`
`© Fraunhofer Gesellschaft IIS - 1998
`
`DARS_031721_0101_SIM_PLAN_21.doc
`
`Page 8 of 9
`
`The information contained in this document is proprietary to FhG-IIS and shall not be disclosed by the recipient to third persons without the written consent of the company
`
`Fraunhofer Ex 2054-p 8
`Sirius v Fraunhofer
`IPR2018-00690
`
`

`

`Title:
`Document Number:
`Ed./Rev.:
`Date
`
`Simulation Plan - Work Package 21B
`DARS-FHG-FSDC-721-140000
`01.01
`9.11.98
`
`4.3
`
`Step 2B & 3: Processing at TDM level, Validation using channel models
`
`Compared to step 2 a full TDM multiplexing/demultiplexing setup is used.
`The goals of step 2B and 3 are:
`• Test of algorithms using a higher symbol rate for the channel state
`estimation.
`• Validation with other channel parameters using channel models
`• Validation together with ACI and other "implementation losses" (e.g.
`phase noise)
`
`Item
`Build multistate channel
`model (see WP-04)
`Validation of channel
`model (e.g. compare with
`SV2 recordings)
`Update COSSAP TDM
`multiplexing/demultiplexin
`g modules
`Build COSSAP satellite
`diversity combining setup
`
`Deliverable
`• COSSAP setup
`
`• Short report
`
`• COSSAP setup
`
`• COSSAP setup
`
`Run simulations
`
`•
`
`Due date
`see WP-04
`
`Responsible
`STEL
`
`see WP-04
`
`STEL
`
`???
`
`???
`
`???
`
`STEL (TBC)
`
`Details of the setup used for step 2B and 3 are TBD.
`
`If the theoretical analysis shows that channel state estimation at TDM level
`are strongly recommended a simplified setup similar to step 2 can be used.
`The error vector can be generated at TDM bitstream level also. A simplified
`TDM multiplexing/de-multiplexing module shall be added to figure 4-1.
`
`© Fraunhofer Gesellschaft IIS - 1998
`
`DARS_031721_0101_SIM_PLAN_21.doc
`
`Page 9 of 9
`
`The information contained in this document is proprietary to FhG-IIS and shall not be disclosed by the recipient to third persons without the written consent of the company
`
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`