Slide 1
AP30/30A Plans & Lists Workshop
Submission of Appendix 4
information under Articles 4 and 5
World Radiocommunication Seminar
Geneva, 15-19 November 2004
Slide 2
Data capture by the SpaceCap (version 5) software
Notices under Articles 4 and 5 of Appendices 30 and 30A submit Appendix 4 data items
SPS (Space Plans Systems) database
-
Contains the basic characteristics and reference situation of the assignments
(AP30/30A Plans, Lists and Article 4 networks, notified assignments under Article 5)
- Similar structure SNS (SRS_ALL) database, with some differences in usage of the tables and fields
Starting SpaceCap:
- open a SPS (Space Plans Systems) database
- select the “Plan” button (on the top right toolbar)
Note: “Open Plan for Inquiry only” option enables to access on read only
World Radiocommunication Seminar
Geneva, 15-19 November 2004
Slide 3
Data organization in the SpaceCap software (1)
Common data to all frequencies of a network
(satellite name, orbital position…)
———————————————————————►
Notice
Diagrams data
(type (Paper, GXT, File), file name, description)
Note: normally filled in through other data entry forms
———————————————————————
Strapping information for Region 2
———————————————————————
Agreements reached
Attachments
Strapping
(Region 2)
Coordination
Note: captured in the “Coordination” data entry form
———————————————————————►
Antenna beam characteristics
(satellite antenna gain, boresight…)
Beam 1
Beam 2
Beam 3
———————————————————————►
Group of frequencies
(common characteristics such as polarization type and
service area…)
———————————————————————►
Group 1
(3)
World Radiocommunication Seminar
Group 2
Group 3
Geneva, 15-19 November 2004
Slide 4
Data organization in the SpaceCap software (2)
Group 1
Group 2
Group 3
(3)
Emission characteristics of a specific group
(frequencies, power and modulation
characteristics)
————————————————————►
Emission/
Frequencies
Service area, test points and typical earth
station antenna characteristics of a specific
group
Srv. Area/
Typ. Antenna
————————————————————►
Specific earth station antenna
characteristics of a certain group in the case
of feeder-link only (if any)
————————————————————►
World Radiocommunication Seminar
Modulation
characteristics
Assoc
Specific
Earth Ant.
Assoc
Specific
Earth Ant.
(feeder-link only)
(feeder-link only)
Geneva, 15-19 November 2004
AP4 data capture observation concerning items specific
to Art 4 & 5 of AP30/30A (1)
SpaceCap
Data Entry Form
Annex 2 to AP4 Data Item
Item No.
Description
Observation
Required only in the following submissions:
§ 4.1.27 of Article 4 of AP30/30A
§ 4.2.6 of Article 4 of AP30/30A in the case of modification to
existing assignments in the Region 2 Plan
§ 4.2.24 of Article 4 of AP30/30A for the suppression of existing
assignments in the Region 2 Plan
§ 5.1.2 of Article 5 of AP30 and § 5.1.6 of Article 5 of AP30A in
the case of notification of Plan assignments
§ 4 of the Annex to Resolution 42
Notice
A.1.b
Beam identification
Notice
A.11
Regular hours of
operation (UTC)
Before capturing this data item, at least one “Group” of one
“Beam” must be captured. For full-time operation 0 to 24 should be
indicated
Notice
A.13c
A.13d
Notice ID of the
corresponding network
previously processed
under Article 4/5 of
Appendices 30 or 30A
Article 4:
modification to a network in the Regions 1 and 3 List or to a
network already successfully entered into the Region 2 Plan
- cancellation of a Plan, List or Article 4 network
- submission of the final characteristics of a network under § 4.1.12
or § 4.2.16 of Article 4
Article 5:
- notification of a network in the Regions 1 and 3 Plan or List or a
network already entered into the Region 2 Plan
- cancellation of previously notified assignments
World Radiocommunication Seminar
Geneva, 15-19 November 2004
Slide 5
AP4 data capture observation concerning items specific
to Art 4 & 5 of AP30/30A (2)
SpaceCap
Data Entry Form
Annex 2 to AP4 Data Item
Item No.
Description
Observation
Emissions/
Frequencies
of Group
C.2.a.2
The channel number
If the user enters first the channel number, the corresponding
center frequency in the Plan will be set by SpaceCap that could be
modified by the user. If the frequency is entered first, the
corresponding channel is calculated using the following formula:
Channel = Integer((Frequency + Channel_Spacing / 2 –
Plan_Frequency) / Channel_Spacing) + 1
Where:
Frequency: center frequency of the assignment (C.2.a.1);
Channel_Spacing: 19.18 MHz for Regions 1 and 3; 14.58 MHz for
Region 2;
Plan_Frequency: The center frequency of channel 1 of the Plans as
follows:
Regions 1 and 3:
Downlink: 11727.48 MHz
Feeder-link (14GHz): 14525.30 MHz
Feeder-link (17GHz): 17327.48MHz
Region 2:
Downlink: 12224.00 MHz
Feeder-link: 17324.00 MHz
Emissions/
Frequencies
of Group
C.8.b.1
C.8.b.1
C.8.h
Total power and power
density values
For digital emissions, if the power density field is empty, a default
value (assuming uniform distribution of the power over the
necessary bandwidth) is calculated once the total power is entered
using the following formula:
pwr-10log(B)
where pwr is the total power and B is the necessary bandwidth
World Radiocommunication Seminar
Geneva, 15-19 November 2004
Slide 6
AP4 data capture observation concerning items specific
to Art 4 & 5 of AP30/30A (3)
SpaceCap
Data Entry Form
Annex 2 to AP4 Data Item
Item No.
Description
Observation
Modulation
characteristics
A.12
Range of automatic
gain control
See also observation on item C.9.b
Modulation
characteristics
C.9.b
Modulation
characteristics
To open this data entry form, the user should click on the
corresponding
designation
of
emission
on
the
“Emissions/Frequencies” form.
In order to copy the modulation characteristics of a specific
designation of emission into all corresponding emissions, the user
should activate the following option on the “Modulation
characteristics” data entry form of SpeceCap:
“Apply these characteristics to all emissions in all groups of this
notice with the same designation of emission”
Group
C.15.a
the MSPACE group
identification code
Article 4 assignments are usually grouped with the co-channel &
co-orbital position assignments of the responsible administration
in the Plan, or List, or other previously submitted Article 4
assignments of the same administration, unless the coverage areas
are largely separated. This issue should be clarified in the fax or
email corresponding to the submission.
For describing the internal grouping of the assignments of the
network, a MSPACE group code should be assigned to this item for
each group of assignments on the “Group” from of SpaceCap. If
this field is blank, it is understood that no MSPACE internal
grouping is applicable to the assignments of the corresponding
“Group”.
It is to be noted that multiple MSPACE grouping for a specific
assignment is not possible. For instance if assignment A should be
grouped with assignments B and C, these two assignments have
also to be grouped since they shall have the same MSPACE group
code of assignment A.
See
World Radiocommunication Seminar
Geneva, 15-19 November 2004
Slide 7
AP4 data capture observation concerning items specific
to Art 4 & 5 of AP30/30A (4)
SpaceCap
Data Entry Form
Strapping
Annex 2 to AP4 Data Item
Item No.
Description
D.1.a
The connection
between uplink and
downlink frequency
assignments in each
transponder for each
intended combination
of receiving and
transmitting beams.
Observation
This item is only required for the submissions in Region 2 where
the OEPM (overall downlink and feeder-link Equivalent Protection
Margin calculation) is applicable.
After capturing all assignments of all downlink and feeder-link
beams, the “Strap wizard” on the “Strapping” data entry form of the
SpaceCap should be used to connect downlink and feeder-link
assignments.
On the wizard, each time before pressing the “Strap” button, only
one of the connection listed on the following slide shall be
selected.
Before exiting that form, the “Validation” button should be pressed
to verify that all assignments have strapped.
For recording the intermediate changes into the database, the
“Finish” button should be pressed. Then the “Validate” button shall
be used to check whether for all downlink and feeder-link channels
there is at least one connection to an opposite link channel.
At the end the “Strapping” tab or the notice itself shall be closed in
order to save changes to the database and update the internal table
beam_tr in the working database.
World Radiocommunication Seminar
Geneva, 15-19 November 2004
Slide 8
AP4 data capture observation concerning items specific
to Art 4 & 5 of AP30/30A (5)
Strapping
method
Description
Example
Condition
Downlink Beam
channels
Feeder-link Beam
channels
Beam level
strapping
Connecting one
downlink beam to a
feeder-link beam
For each downlink group of
frequencies, a feeder-link group
with frequencies having the
same downlink channel number
shall exist and vice-versa.
Beam: Bmdl
Grp1: 1, 3, 5, 7
Grp2: 2, 4, 6, 8
Beam: Bmfl
Grp3: 1, 3, 5, 7
Grp4: 2, 4, 6, 8
Group level
strapping
Connecting one
downlink group of
frequencies to a feederlink group of
frequencies
The channel numbers of the
downlink group shall be equal
to those of the feeder-link
group.
Beam: Bmdl
Grp1: 1, 3, 5, 7
Beam: Bmfl
Grp3: 1, 3, 5, 7
Assignment
level
strapping
Connecting one
downlink frequency to a
feeder-link frequency
Any downlink channel could be
connected to any feeder-link
channels.
Beam: Bmdl
Grp1: 3
Beam: Bmfl
Grp4: 6
World Radiocommunication Seminar
Geneva, 15-19 November 2004
Slide 9
Slide 10
More detailed information about Appendix 4 data capture for AP30/30A
notices can be found on the ITU website at the following address:
http://www.itu.int/ITU-R/space/plans/FAQ/SpaceCap5.html
World Radiocommunication Seminar
Geneva, 15-19 November 2004