cairo 19-20 sept 2010 preparations for wrc-12 wrc -12 agenda item 1.3 on uas presented by john...
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Cairo19-20 Sept 2010
Preparations for WRC-12Preparations for WRC-12
WRC -12 AGENDA ITEM 1.3 WRC -12 AGENDA ITEM 1.3 ON UASON UAS
Presented byJohn Taylor
MID RPS for WRC-12 preparation
UASUAS
– Unmanned Aircraft Systems (UAS) consists of Unmanned Aircraft (UA) and associated Control Stations. Unmanned aircraft are powered, aerial vehicles that do not carry a human pilot, use aerodynamic forces to provide vehicle lift, and may fly autonomously or be piloted remotely
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UASUASAPPLICATIONSAPPLICATIONS
• Two groups of UAS applications, anticipated fields of operation examples for each mission type
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AIRSPACE ISSUESAIRSPACE ISSUES
• UAS operations have been limited to segregated (restricted airspace)
• Advancements in design and technology• Expanding deployment in a variety of roles• More favorable in repetitive, routine, long
duration operations• Requirement for safe integration into non-
segregated (non-restricted) airspace• Integration into the Air Traffic Control system
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Communication linksCommunication links
• Integration into Air Traffic Control system and national airspace
• Operation in civil airspace with other air traffic • Operation must be transparent to all other users as if UAS
were a manned aircraft• Requirement for communication links with UAS• Three main types of communication links• Command and Control link• Relay of Air Traffic Control communications• Relay of Sense and Avoid communications
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Communication LinksCommunication Links
• Seamless integration of UAS in civil airspace• Requirement for maintaining safety of flight• Requirement for short range line of sight communications• Requirement for beyond line of sight communications• The two types of communication requirements have a profound
effect on the amount spectrum needed• Hence WRC-07 placed and agenda item on the next WRC-12
to identify spectrum for UAS
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WRC-Agenda Item 1.3WRC-Agenda Item 1.3
• to consider spectrum requirements and possible regulatory actions, including allocations, in order to support the safe operation of unmanned aircraft systems (UAS), based on the results of ITU‑R studies, in accordance with Resolution 421 (WRC‑07
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WRC-12 Agenda Item 1.3WRC-12 Agenda Item 1.3Resolution 421 Invites ITU-RResolution 421 Invites ITU-R
• to conduct in time for WRC‑12 the necessary studies leading to technical, regulatory and operational recommendations to the Conference, enabling that Conference to decide on appropriate allocations for the operation of UAS
• that the studies referred to in invites ITU‑R 1 should include sharing and compatibility studies with services already having allocations in those bands
• to produce a report or a recommendation, as appropriate, on how to accommodate the radiocommunication requirements for UAS payloads
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WRC-12 Agenda Item 1.3WRC-12 Agenda Item 1.3
Spectrum requirements and possible regulatory actions, including allocations, for safe operation of UAS
ISSUES• What are the technical characteristics• What are the protection requirements• How much spectrum will be required• Identification of current allocations that can accommodate
UAS• Identification of additional frequency allocations if required• Ensuring compatibility with existing radiocommunication
services• What possible regulatory actions will be required by the
Conference
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WRC-12 Agenda Item 1.3WRC-12 Agenda Item 1.3
Spectrum requirements and possible regulatory actions, including
allocations, for safe operation of UAS
Work being undertaken in WP 5B• Spectrum requirement identified 34 MHz terrestrial
56 MHz Satellite (including feeder links)• PDNR ITU-R M.[UAS-SPEC] (Doc. 5B/296 Annex 16)• Framework towards DN Report ITU-R M.[UAS-BANDS]
(Doc.5B/296 Annex 14)• Draft CPM text (Doc. 5B/296 Annex 19)• Work plan (Doc. 5B/296 Annex 18)
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WRC-12 Agenda Item 1.3WRC-12 Agenda Item 1.3
Spectrum requirements and possible regulatory actions, including
allocations, for safe operation of UAS
• Communications Scenario for line of sight
ATC
UA
Control Station
Uplink : CS to UA1. CS to UA Downlink : UA to CS2. UA to CS
Spectrum requirementLOS = 1+2 = 34 MHz
12
Cairo19-20 Sept 2010
WRC-12 Agenda Item 1.3WRC-12 Agenda Item 1.3
Spectrum requirements and possible regulatory actions, including
allocations, for safe operation of UAS
Communication Scenario for beyond line of sight
ATC
UAV
CS
1
4
3
2
SatelliteSpectrum requirement
PILOT/SAT (UL+DL) = 1 + 4 = 28 MHz+
SAT/UA (UL+DL) = 2 + 3 = 28 MHz
TOTAL BLOS = 2 x 28Hz = 56MHz
Forward link:
1. Uplink : CS to satellite2. Downlink : satellite to UAReturn link :
3. Uplink : UA to satellite4. Downlink : satellite to CS
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WRC-12 Agenda Item 1.3WRC-12 Agenda Item 1.3
Spectrum requirements and possible regulatory actions, including
allocations, for safe operation of UAS
Candidate frequency bands
• 960 –1 164 MHz
• 1 545–1 555 (space-to-Earth) and 1646.5–1656.5 MHz (Earth-to-space)
• 1610-1626.5 MHz (space-to-Earth and Earth-to-space)
• 5 000–5 150 MHz and 15.4-15.7 GHz
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WRC-12 Agenda Item 1.3WRC-12 Agenda Item 1.3
Frequency Band Analysis
• 960 –1 164 MHz• In-band systems• Co-site compatibility• Inter-site compatibility• Existing adjacent band systems• Potential future in-band systems
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WRC-12 Agenda Item 1.3WRC-12 Agenda Item 1.3 Frequency Band AnalysisFrequency Band Analysis
1 545-1 555 MHz (space-to-Earth), 1 610-1 626.5 MHz (space-to-Earth and Earth-to-space), and 1 646.5-1 656.5 MHz (Earth-to-space)
• AMS(R)S allocation in portions of these bands
• Could be used for UAS communications links
• These bands also under study in WRC Agenda Item 1.7
• UAS communications would need to be specified and standardized for use over satellite links
• RAS must be protected
Cairo19-20 Sept 2010
WRC-12 Agenda Item 1.3WRC-12 Agenda Item 1.3 Frequency Band AnalysisFrequency Band Analysis
5 000-5 150 MHz
• Suitable for UAS links
• AMS(R)S and AMRS allocations
• Need to protect MLS and RNSS
• Potential sub-band usage
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WRC-12 Agenda Item 1.3WRC-12 Agenda Item 1.3
CURRENT STATUS OF WORK ITU-RCURRENT STATUS OF WORK ITU-R
• Draft new Report ITU-R M.[UAS-SPEC]
• Preliminary draft new Report ITU-R M.[UAS-Bands]
• CPM text has been published
• work plan and milestones
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WRC-12 Agenda Item 1.3WRC-12 Agenda Item 1.3
ICAO POSITION ON 1.3ICAO POSITION ON 1.3• To support, based on the results of studies identified in
Resolution 421, any modification to existing allocations, or new allocations required to accommodate UAS operations in non-segregated airspace while maintaining the safety and regularity of flight of all types of aircraft.
• Accordingly, to ensure that allocations used, in particular, for UAS command and control, ATC relay and sense and avoid in non-segregated airspace are in the AM(R)S, AMS(R)S and/or ARNS and do not adversely affect existing aeronautical systems
• To oppose the use of this agenda item to seek new spectrum allocations to meet payload requirements.
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WRC-12 Agenda Item 1.3WRC-12 Agenda Item 1.3
REGIONAL POSITIONS ON 1.3REGIONAL POSITIONS ON 1.3• CEPT
• CITEL
• APG
• ASMG
• ATU
• RCC
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WRC-12 Agenda Item 1.3WRC-12 Agenda Item 1.3
REGIONAL POSITIONS ON 1.3 REGIONAL POSITIONS ON 1.3
• CEPT POSITION• To support modifications to existing allocations as
appropriate to accommodate UAS Command and control/ Sense and Avoid systems needed to maintain the safety and expeditious use of airspace.
• To oppose the allocation of spectrum for payload purposes under this agenda item
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WRC-12 Agenda Item 1.3WRC-12 Agenda Item 1.3
REGIONAL POSITIONS ON 1.3 REGIONAL POSITIONS ON 1.3
• CITEL POSITION• Support ITU‑R studies related to this agenda
item, particularly on the amount of spectrum needed, frequency bands and
compatibility with incumbent services.• Supported by US, Canada and Brazil.
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WRC-12 Agenda Item 1.3WRC-12 Agenda Item 1.3
REGIONAL POSITIONS ON 1.3 REGIONAL POSITIONS ON 1.3• APG POSITION
• The current studies being carried out by ITU-R in WP 5B are supported.• Allocations to AM(R)S, AMS(R)S and/or ARNS, in order to satisfy
spectrum needs for UAS applications, are supported, preferably from existing aeronautical safety allocations.
• Compatibility with existing services, in particular ICAO standards based systems such as MLS, needs to be ensured.
• Due to the safety nature of UAS, regulatory provisions associated with the allocation need to be clear, unconditional and implement able in practice.
• AI 1.3 should be confined to safety communications and not payload
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WRC-12 Agenda Item 1.3WRC-12 Agenda Item 1.3
REGIONAL POSITIONS ON 1.3 REGIONAL POSITIONS ON 1.3• ASMG POSITION
• To follow studies in WP 5B
• Focus study on limited use of AMS(R)S and AMS for these applications
• If other bands are proposed, then ensure no impact to existing services in these bands.
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WRC-12 Agenda Item 1.3WRC-12 Agenda Item 1.3
REGIONAL POSITIONS ON 1.3 REGIONAL POSITIONS ON 1.3
• ATU POSITION
• Position is unknown at this time
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WRC-12 Agenda Item 1.3WRC-12 Agenda Item 1.3
REGIONAL POSITIONS ON 1.3 REGIONAL POSITIONS ON 1.3
• RCC POSITION• Supports allocation in AM(RS, AMS(R)S and
ARNS bands for UAS the RCC CAs do not support additional spectrum allocations for these services.
• Does not support UAS in 960-1164 MHz, 1525-1559 MHz, 1610-1660 MHz, 5030-5091 MHz and 15.4-15.7 GHz.
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WRC-12 Agenda Item 1.3WRC-12 Agenda Item 1.3
UAS UAS
ENDEND