L-band Spectrum Process 27 May Tony Azzarelli 1

Transcription

1 L-band Spectrum Process 27 May 2010 Tony Azzarelli 1

2 Summary 1. Background on L-band frequencies (1.5/1.6 GHz) 2. Spectrum Access 3. WRC-12 Agenda Item Conclusions (No A) 2

3 1. L-Band AMS(R)S Spectrum (ORB-87) MMSS SAR AMS(R)S (WRC-97) MMSS LMSS SAR AMS(R)S LMSS now down-link up-link MSS SAR MSS (No A) The MSS L-band spectrum is: MHz ( ) & MHz ( ) Historically different mobile satellite services, i.e. Maritime, Land and Aeronautical. AMS(R)S allocation was identified since 1972 for the safety communication services. At WRC-97 the AMS(R)S allocation was made generic to MSS and a regulatory footnote was introduced to preserve priority to aeronautical safety communications. 3

4 Advantages of L-band Spectrum 1. Technological reasons - A better link budget with respect to higher frequency solutions; - Allows to use low cost omni-directional antenna & low-power aircraft equipment. 2. Regulatory reasons - Existing global harmonised spectrum allocation (2 x 10MHz) for aviation use, with protection and recognised priority over all other services; - Moving to a different frequency band would require a new regulatory process to be established at a world-wide level. 3. Industry reasons - Heritage in operating AMS(R)S systems in L-band; - Many aircraft have installed L-band antennas; - Moving to a different frequency band would require developing new aircraft equipment (especially the antenna). 4

5 2. Spectrum Access ITU spectrum access process is generally done on a first-come/first-served basis, but a specific process has been developed for L-band. The Multi-Lateral Meeting (MLM) process started in the 1990 s: - It is Organised by the Administrations representing the L-band satellite systems in operation; - It Sets out the sharing process in a Memorandum of Understanding (MoU); - It established the Operators Review Meeting (ORM) where the MSS operators have been delegated to assign frequencies on a yearly basis. 5

6 Conditions required for the MLM/ORM process The MLM MoU establishes 6 Milestones for the recognition of a new satellite for the provision of frequency assignments at the ORM process. These are: (1) the ITU satellite filing; (2) the satellite manufacturing contract; (3) the satellite launch agreement; (4) the gateway Earth station contract; (5) the launch of the satellite; (6) the start of operations. Operators can: - Attend the ORM as observers after Milestone (1).; - Ask for spectrum assignments only if they have reached at least milestone (4), and are planning to launch (5) and start operations (6) in the following year. 6

7 L-Band Satellites in the GSO Orbit Region 1/3 MLM only (No A) GARUDA (INS) MTSAT (J) ARTEMIS (F) INMARSAT-3 (UK) AUSSAT (Aus) VOLNA (Russia) INMARSAT-4 (UK) EMARSAT (UAE) (Missing Region 2 systems) 7

8 ITU Satellite Filing Process ITU Satellite Filing Process A purpose-built satellite system for SESAR will require an ITU filing before its deployment. The satellite filing process is made under ITU RR Art. 9 (mobile-link) and Art. 11 (feederlink), i.e.: First a filing of an Advance Publication Information (API); Then within 2 years, a filing for a Coordination Request (CR), which will kick-off the formal frequency coordination process; And lastly a final Notification for the registration of the satellite network onto the ITU Master Register; If notification is not made, within 7 years of the API submission, the filing of the satellite network lapses. The ITU filings will require technical data (see ITU Appendix 4), for example: Orbital locations; Satellite characteristics; Terminal characteristics; Link budgets analysis. 8

9 3. WRC-12 Agenda Item 1.7 In 2007, WRC-07 accepted Agenda Item 1.7 to the WRC-12, which says: 1.7 to consider the results of ITU-R studies in accordance with Resolution 222 (Rev.WRC-07) in order to ensure long-term spectrum availability and access to spectrum necessary to meet requirements for the aeronautical mobile-satellite (R) service, and to take appropriate action on this subject, while retaining unchanged the generic allocation to the mobilesatellite service in the bands MHz and MHz. Hence by 2012 the ITU-R needs to: - To estimate the AMS(R)S long-term spectrum requirements; - Provide a method to ensure access to spectrum for AMS(R)S systems. AI 1.7 Work Schedule: o o o o JUL 2010: ITU Working Party 4C will finalise Draft CPM text; SEP 2010: European Administrations will select a common position; FEB 2011: Conference Preparatory Meeting (CPM) will prepare a Report with different regulatory methods to satisfy the AI 1.7; JAN 2012: WRC-12 will take place in Geneva. 9

10 Conclusions Conclusions 1. L-band spectrum is the best solution for SESAR satellite link: - Existing, Harmonised and Protected spectrum; - Benign radio environment; - High synergy with existing MSS industry. 2. Well known spectrum access process in L-band: - Multi-Lateral Meeting and the Operators Review Meeting 3. ITU WRC-12 AI Estimate long-term spectrum requirements for AMS(R)S ; - Approve regulatory methods to improve spectrum access for AMS(R)S. 10

11 Iris - Contact Points ESA Iris Regulatory and Spectrum Affairs Tony Azzarelli Tony@azzurra-telecom.com