CEPT ECC Electronic Communications Committee ECC PT1(14)050 ECC PT1 ECC PT1 #46 Luxembourg, 28 April – 2 May 2014 Date issued: 2014-04-22 Source: UMTS Forum Subject: Study on spectrum uses, trends and demands in the range 3400 – 4200 MHz (C-Band) Password protection required? (Y/N) N Summary: In a study commissioned by CGI Business Consulting, France, for UMTS Forum, it is concluded that the demands for satellite transponder equivalents (TPEs) in the C-band have come to a halt and will remain flat up to years 2021 / 2022. One referenced market study is suggesting that the demand for TPEs will retract in this period. The introduction of new technologies in the satellite industry, such as Adaptive Coding and Modulation (ACM) high capacity medium earth orbit (MEO) satellites etcetera, is allowing for a gradual shift from the C-band to the higher frequency Ka- and Ku-bands. Proposal: The CEPT ECC PT1 meeting is invited to consider the study below on uses, trends and demands in the range 3400 – 4200 MHz. UMTS Forum is also inviting the meeting to consider the further work in relation to the C-band both in the context of market requirements in Europe and the regulatory process in preparation for the ITU WRC-15 with the aim of making further spectrum available for use of mobile broadband applications. Background: The study below on uses, trends and demands is developed for the convenience and consideration of the CEPT ECC PT1 meeting with the objective to show that different countries are already using the bands in the 3400 – 4200 MHz under different national schemes having previously making choices on how to use this range subject to national circumstances. UMTS Forum is of the view that the current as well as the estimated future uses of FSS in this range would provide room for broadband MFCN, including IMT, in bands in the range 3400 – 4200 MHz for application in countries that so wish. Accordingly, there should be an opportunity for countries that so wish to share this range of spectrum between broadband MFCN, including IMT, and systems in the FSS. Study on spectrum uses, trends and demands in the range 3 400-4 200 MHz Introduction The study on spectrum uses, trends and demands in the range 3400 – 4200 MHz is based mainly on information from the public domain, followed by assessments where information is complemented and compiled. Information is also obtained by direct interviews (conducted with representatives of different countries’ spectrum management organizations). The key sources used by CGI Business Consulting1 while performing the study for UMTS Forum include ● satellite industry information; ● contribution documents submitted to various organizations; ● commercial and free online satellite databases; ● countries studies and reports, and ● industry inputs from analyst research companies. Background Since the ITU WRC-07, when it was recognized that an allocation to the mobile service and the Identification to IMT was justified by demands, the market circumstances have changed considerably; markedly several new satellite technologies, as well as terrestrial technologies, have appeared and are being deployed, or being planned to be deployed. These new satellite technologies are more cost and spectral efficient and will come to replace the current ones that are losing market shares while providing a digital dividend. Evidently, some services have been replaced by others over time and looking at the market situation for satellite operations, the deployment of e.g. fiber optical cables has significantly reduced the need for VSAT. This study report highlights the impact from optical IP based fiber trunking with the arrival of submarine cables to African countries, which has significantly increased the available capacity and connectivity in the region, just as it earlier occurred in Asia and Latin America. Besides, new technologies like Adaptive Coding and Modulation (ACM) for satellites in the Kaand Ku-bands are becoming more and more accepted also in the many regions where rain fades are more frequent. This trend is leading to a migration from the C-band to the Ku-band, but also to the Ka-Band in some instances, for e.g. the VSAT services. A similar trend is also underway for the government and defense uses, as well as for satellite news gathering (SNG) and other legacy C-band operations to move to the Ku- and Ka-bands. Considering the continuing mobile traffic growth as well as the increasing number of subscriptions, (an increase of 40 % of mobile broadband subscription in 2013, exceeding 6.6 billion2), the importance of the availability of harmonized spectrum is more than ever raising the crucial question of additional spectrum for International Mobile Telecommunications (IMT) to facilitate the development of terrestrial mobile broadband applications, in accordance with Resolution 233 (WRC-12). The scope of the study was defined as comprising the following tasks ● gather information regarding the C-Band (3400 – 4200 MHz); ● identify regulations and experiences in a sample of representative countries from all the ITU Regions (40 countries); ● review, challenge and subsequently include relevant elements of the previous UMTS Forum study results, and 1 http://www.cgi.fr/metier/conseil. 2 Ericsson Mobility Report, On the Pulse of the networked Society, Ericsson, November 2013 (http://www.ericsson.com/res/docs/2013/ericsson-mobility-report-november-2013.pdf) 2 ● identify the market trends and the expected / estimated future market demands for satellite applications per region. The methodology used CGI Business Consulting has used a pragmatic approach to gather reliable information, using four main different information sources ● interviews with relevant National Regulatory Authorities (NRAs); ● email correspondence with some NRAs; ● when available, public sources such as regulators’ websites, third-party reports and databases, and ● UMTS Forum additional inputs and previous UMTS Forum study results regarding the C-band Spectrum usage. As requested by the UMTS Forum, CGI Business Consulting has studied a sample of 40 representative countries from all ITU Region ITU Region Geographical area Number of Country 1 Europe 6 1 Middle East and North Africa 7 1 Sub-Sahara Africa 7 2 Americas 10 3 Asia-Pacific 10 General information on the study and key findings ● the study is indeed based on 40 countries, however and notably, each country Administration is having specific use and views on the C-band; ● on a national level, climate conditions, the size of country, the quality of terrestrial networks and population density are key differentiation factors related to the use of the C-band, and ● several new technologies have appeared in the satellite industry (e.g. ACM and MEO satellites) allowing the gradual move from C-band to others band like Ka- and Ku-bands. Europe findings ● in many EU member states the 3400 – 3600 MHz band is licensed to network operators using WiMAX (an IMT family standards); ● the number of European FSS earth stations using the range 3800 – 4200 MHz is very low compared to other regions of the world suggesting that this range is underused; while there is about eight times the number of those few earth stations using the band 3400 – 3800 MHz, and considering the limited number of FSS earth stations, it would be possible to introduce IMT mobile broadband also in the range 3800 – 4200 MHz by means of geographical sharing, both in countries and between countries. Middle East and North Africa findings ● in the Arabic speaking region, the C-band is used for FSS (VSAT systems, backhauling or broadcasting applications for example); ● in many countries the 3400 – 3600 MHz band is licensed to network operators using WiMAX (an IMT family standards), and ● in some countries, still an introduction of IMT mobile broadband services could be considered. Sub-Sahara Africa findings ● the band 3400 – 4200 MHz is used for FSS earth stations throughout Africa; ● in some countries the 3400 – 3600 MHz band is licensed to network operators using WiMAX (an IMT family standards), and ● in some countries, still an introduction of IMT mobile broadband services could be considered. 3 Asia-Pacific findings ● the C-band is mainly used for FSS; ● in many countries the 3400 – 3600 MHz band is licensed to network operators using WiMAX (an IMT family standards), and ● some parts of the C-band are already considered for further mobile broadband use in some countries. Americas findings ● the C-band is mainly used for FSS and radars (only in North America); ● in many countries the 3400 – 3600 MHz band is licensed to network operators using WiMAX (an IMT family standards), and ● some parts of the C-band are already considered for further mobile broadband use in some countries. Other findings Given the current trend of increasing traffic, some mobile broadband operators are looking to short term to improve their networks to the good of the consumers by integrating new small cell and hot spot coverage layers with wide area layers with the objective to provide more capacity and richer services, by adding the range 3400 – 3800 MHz which is ideal for such coverage3. The whole range 3400 – 4200 MHz will play a more and more important role in the future, as traffic grows and the frequency bands below 3 GHz will be congested. This frequency band will play a considerable role in the LTE evolution and future innovation of the IMT-Advanced technologies. Although in many European Union (EU) member states the 3400 – 3600 MHz band is allocated to WiMAX technologies, operators are now preparing for a future transition to LTE. Regarding Europe, as defined in the RSPP article 3, “In order to focus on the priorities of this Decision, Member States and the Commission shall cooperate to support and achieve the following policy objectives: […]seek to allocate sufficient and appropriate spectrum in a timely manner to support Union policy objectives and to best meet the increasing demand for wireless data traffic, thereby allowing the development of commercial and public services, while taking into account important general interest objectives such as cultural diversity and media pluralism; to that end, every effort should be made to identify, based on the inventory established pursuant to Article 9, at least 1200 MHz of suitable spectrum by 2015”. Thus, the range 3400 – 3800 MHz is representing an essential resource for the fulfillment of the 1200 MHz objective. The decisions that will be taken in the WRC-15 will have a considerable impact on the development and advancements of the mobile broadband market and on the evolution of technology and networks. Description of the C-band and main characteristics The C-band was allocated to FSS and used by the satellite industry since the first networks were deployed over 40 years ago. Even though today’s satellite networks also use higher frequency bands, the C-band remains of importance primarily because transmissions in this band do not appreciably degrade in rainy condition. While other frequency bands may be used by commercial FSS operators, specifically the Ku and Ka-bands, these bands are not always practical alternatives for some C-band applications. The level of rain attenuation in the Ku- and Ka-bands means that the level of availability of Cband cannot always be achieved in some regions of the world. Main advantages of C-band for FSS are as listed below ● less rain fading, leading to the use of lower gain satellite antennas; 3 The full spectrum of possibilities, Meeting future demand for commercial mobile broadband services in Europe, A manufacturer’s perspective, Huawei, August 2013 4 ● large coverage area, providing coverage to sparsely covered regions that otherwise would have been uncovered, or outside of a satellite spot beam except in northernmost and southernmost areas where coverage is limited or absent; ● widely-dispersed earth station sites, which can be connected within a single satellite beam, so the satellite network is fully adaptable to geographical changes in traffic distribution, and ● these features of C-Band are particularly relevant to subtropical regions, whereby due to their geographic location may not always be adequately serviced by Ku- or Ka-band satellite networks. It is our understanding there are today approximately 180 geostationary satellites operating in the C-band. C-band satellites continue to be launched, reflecting a continued demand for Cband satellite applications around the world. However, there are satellite networks being or planned to be launched without C-band transponders. Analysis of the C-band From the research, by means of extensive interviews of national regulators and gathering of information from other stakeholders and public sources, this information has subsequently been collected in a database format. From the database it was possible to draw up an analytical report of the current usage of the band. The analysis is based on this CGI Business Consulting database. Uses in the range 3400 – 3800 MHz The band 3400 – 3600 MHz contains mainly fixed radio link (FRL) systems, fixed wireless access (FWA) systems and broadband wireless access (BWA) systems. The pie chart below shows the distribution of uses for the band 3400 - 3600 MHz. FIGURE 1 Distribution of uses in band 3400 - 3600 MHz based on the data of the 40 studied countries Fixed Wireless Access is a wireless access application in which the location of the end user termination and the network access point to be connected to the end user are fixed. WiMAX is the most used FWA technology. Broadband Wireless Access is wireless access in which the connection(s) capabilities are very high (more than 1544 kbit/s ). Thus, BWA is the overall term for wireless access that covers fixed, mobile and nomadic wireless access. 5 The band 3600 – 3800 MHz contains mainly FWA, FRL and satellite systems. This sub-band shows different uses depending on the geographical region. In Europe and Africa, the uses in band 3600 – 3800 MHz are similar to the uses in the band 3400 – 3600 MHz while in some Latin America and Asian-Pacific countries the uses are quite the same as in range 3800 – 4200 MHz. To sum up, the uses found, in the band 3600 – 3800 MHz, are either similar to the uses in the bands 3400 – 3600 MHz and 3800 – 4200 MHz subject to regional or national circumstances. From the data collected during the study (collected in a database), we were able to draw a world map of the distribution by country that currently have FWA, BWA or mobile systems in the range 3400 – 3800 MHz (either for the whole range 3400 – 3800 MHz or limited to the band 3 400 – 3600 MHz). FIGURE 2 Distribution by country that currently have FWA, BWA or Mobile Services in the range 3400–3800 MHz (either for the whole range 3400-3800 MHz or limited to the band 3400–3600 MHz) Green countries with use Blue countries with no use Orange countries where data is missing Grey out of scope Approximately 90 % of the studied countries have FWA, BWA or mobile systems in operational use in the 3400 – 3800 MHz frequency band. Uses in the range 3800 – 4200 MHz The range 3800 – 4200 MHz contains FRL systems and satellite systems. The pie chart below shows how the uses are distributed for the range 3800 – 4200 MHz. 6 FIGURE 3 Distribution of uses in the range 3800 – 4200 MHz based on the data of the 40 studied countries The uses of FRL systems and satellite systems are not correlated with regard to geography, country, infrastructures development and climate conditions, one service or the other is clearly more used in this part of the band. For example, the point of contact in a North African country made it clear that this part of spectrum was more used by FRL systems in comparison with satellite systems. Due to the weather conditions in this country, there is a very limited use of satellite systems. On the contrary, other countries with very heavy rainfall have a limited use of FRL systems in the band and depend on the use of this range of spectrum for satellite systems. For example, the use of satellite systems is widespread in one of Latin American countries in the study, due to its climate characteristics, but also due to its continental dimensions and limited access to telecommunications infrastructure in parts of the country. Until the telecommunication infrastructure would be expanded, this will remain to be one reason for that Administration to support the use of satellite systems in C-band. Focus on satellite applications In the supporting database it is possible to see that the satellite applications in this range of spectrum are for example ● media distribution and broadcast e.g. using direct to home (DTH) or television receive-only (TVRO) systems in Latin America; ● data networks with VSAT, in Africa; ● feeder links in some countries in Asia-Pacific; ● satellite news gathering (SNG) in some Middle East countries; ● tracking, telemetry and command in some countries Asia-Pacific; ● mobile Backhaul in some countries in North Africa, and ● Government use in North America. Key findings on uses One of the uses of the C-band has been to provide Internet by satellite to remote areas, particularly in Africa. However, today, the development of fiber optic cables in Africa and the 7 technology evolutions for Ku- and Ka-band satellites make the C-band for Internet connectivity less attractive. The range 3800 - 4200 MHz still seems to be important for the satellite industry particularly in countries that have extensive continental area with part of the population in remote rural areas and/or where the climate is characterized by intensive but short-lived rainfall. Limited access to terrestrial telecommunications infrastructure in some parts of the world to connect isolated regions is also an element that C-band satellite use can satisfy. Indeed satellite communications is the easiest way to rapidly provide communications to remote and rural areas. For example, a regulator in a Latin American country explains that Internet access would not be possible in the waste remote region without the use of satellite trunk links in C-band. In addition to complementing submarine cables, satellite communications are also said to be an important backup for such cables that are vulnerable to being cut as a result of geological movements. Globally, countries that do not match the characteristics previously mentioned (climate with heavy rainfall, isolated population on an extensive continental area with lack of terrestrial infrastructure) are not fundamentally against the introduction of IMT-Advanced in the range 3400 – 3800 MHz, quite the opposite. In these countries, some are even in favour of the idea of sharing between the mobile service (MS) and FSS; again, countries with some particular national circumstances may consider possible and particular coexistence conditions applying e.g. ASA/LSA to alleviate the risk for interference to incumbent systems. Market trends and demand for uses in the C-band Over the years, satellite uses in the C-band have changed while several new technologies have appeared on the market. New services, being more cost effective, come to replace less efficient older ones. New satellite network being placed on the market are announcing the move to other bands where the national conditions so allow for climate and density of population reasons. In the mobile industry, the LTE–Advanced technology is the new internationally high performing service whose capabilities are unmatched by other mobile technologies. The Global mobile Suppliers Association (GSA) report, “Evolution to LTE” reports that 2013 ends with 260 LTE networks in service on a global basis, mainly using the LTE FDD access scheme4. From early 2011, also the LTE TDD access scheme has been deployed in several big cities in Asia. For the future evolution, the bands 3400 – 3600 MHz and 3600 – 3800 MHz are emerging as a key band for both high peak data rate macro and small cells systems5. Looking at the circumstances for the satellite industry, for example one country in Africa is significant; the deployment of fiber optic cables has almost disrupted all use of VSAT, which is also representative for the situation in some other countries. Clearly some services have been replaced by others. Indeed, according to public information from the Global Assessment of Satellite Supply & Demand, 9th Edition published in August 2012 by the US and UK based analysis firm Northern Sky Research (NSR), a global leader in providing satellite industry market research, some legacy services, such as point-to-point telephony and carrier services, demand have been ceding to expanding to fiber and undersea cable. The NSR report highlights the fact that a similar change happened to satellite IP trunking with the arrival of undersea cables around coastal Africa which impacted IP trunking in that region from about year 2010 just as it has occurred in Asia and Latin America before. Besides, new technologies like Adaptive Coding and Modulation (ACM) for satellites in Ka- and Ku-bands for example are becoming more and more accepted even in many regions where rain fade is important where ACM could be used to combat fading6. 4 http://www.gsacom.com/news/gsa_397.php. 5 1000x: More Spectrum—Especially for Small Cells, Qualcomm, November (http://www.qualcomm.com/media/documents/1000x-more-spectrum-especially-small-cells); 6 2013 Global Assessment of Satellite Supply & Demand, 9th Edition, NSR's report, August 2012 (http://www.nsr.com/research-reports/satellite-communications). 8 As explained earlier, with regard to the country in Africa, exemplified above, this trend is leading to a migration of former C-band VSAT networking services to Ku-band, and even Ka-band in some instances. A similar trend is also underway in the government and military market as well as satellite news gathering (SNG) services as legacy C-band provisioning moves to the newer Ku- and Ka-band services. All of these examples suggest that there is a gradual transition to Ku-band, Ka-band and high throughput satellite (HTS7) systems. Regarding the demand situation for satellite industry, it is our belief that in the next 1 – 2 years, more attractive new services will develop; new satellite backhaul services primarily based on lower cost HTS capacity and new alternatives satellite configurations. One satellite company deliver broadband connectivity everywhere on Earth, but within 45 degrees of latitude north and south of the equator in the most populated areas of the globe, unfortunately leaving half of the surface of the globe uncovered. This satellite network operates in the higher-frequency Ka-band and has the capability to deliver 10 antenna beams per region in 7 regions at a data speed of 1.2 Gbps per antenna beam8. Regarding the demand situation for mobile industry, and focusing on IMT-Advanced, providing an example is the best way to fully understand the trends and the potential of LTE: in a country in Asia-Pacific, the population of mobile subscribers outnumbered the total population in year 2011. “The large scale trial of LTE is spreading across more than 100 cities and all the leading telecom equipment vendors have participated and come up with new solutions and applications. Moreover, user behavior has dramatic change compared with a couple of years ago. Smartphones were established as the top listed “Chinese New Year” gift in countries in the region. While people are in the queue of waiting, no matter in subways, bus stops, café, shopping malls or lifts, they engage with web social networking and video content applications. It is common phenomenon for one person holds more than two smart connected devices. Sources from that country in Asia-Pacific show that the data traffic of year 2012 grew more than 600 times compared to 2011. We witness the similar phenomenon in other countries, for example in the region. The research firm Strategy Analytics predicts the shipments of LTE smartphones will triple next year, rising from this year’s 91 million to 275 million.”9 If we have a more detailed look at the C-band; for the band 3400 – 3600 MHz, most of CEPT administrations have issued the license of FWA applications and many operators that have deployed WiMAX look to move to LTE. In the Asia-Pacific region, following the ITU Radio Regulations (RR) allocations including 5.432A, 5.432B and 5.433A footnotes, the bands 3400 – 3500 MHz and 3500 – 3600 MHz are allocated for the mobile service on primary basis and/or identified for IMT in many countries. The future of these bands, also often used for satellite systems in the FSS in these countries, is not considered the same way in all countries in AsiaPacific. Some countries have decided they will implement LTE, whereas others give priority to satellite systems over other services10. In the ITU Region 2, there are also different uses, notably between North America and Latin America: one country in North America seems to be in favour of the implementation of IMT-Advanced in parts of the range 3500 – 3700 MHz, under a possible shared use practice. A regulator from one Latin American country is supporting the use of satellite systems; indeed, that regulator highlights the fact that C-band was the only reliable satellite band because C-band signals are resistant to atmospheric conditions, particularly in the subtropical regions of Americas, Equatorial Africa and Asia-Pacific, also pointing out the fact that if IMT-Advanced were to be made compatible with satellite systems, a certain protected zone around each Earth station would be required. The deployment of IMTAdvanced and systems beyond IMT-Advanced applications in the band 3600 – 4200 MHz would 7 Global Assessment of Satellite Supply & Demand, 9th Edition, NSR's report, August 2012 (http://www.nsr.com/research-reports/satellite-communications) 8 http://www.o3bnetworks.com. 9 TDD Global Spectrum Report, TD Industry Alliance, 2012 (http://www.tdia.cn/downloads/PDF/TDDGlobalSpectrumReport%EF%BC%882012%EF%BC%89.pdf). 10 TDD Global Spectrum Report, TD Industry Alliance, 2012 (http://www.tdia.cn/downloads/PDF/TDDGlobalSpectrumReport%EF%BC%882012%EF%BC%89.pdf) 9 thus most certainly be severely limited over cities in the world particularly where satellite broadcasting services for direct to home (DTH) is used. This view has been expressed by a 11 number of CITEL member countries . However, Authorised Shared Access (ASA) and the implementation of macro and small cells as well as exploring indoor systems using LTE may provide for a way forward for shared uses in the 3400 – 3800 MHz band in some countries where a well-defined licensing practice does not provide an option for IMT. Trying to forecast satellite transponder (TPE) demand in the C-band is a broad exercise. Indeed, looking at different estimations, it is possible to get certain, but somewhat diverting, conclusions from two major specialized firms. While NSR predicts that worldwide C-band demand will drop by approximately 190 TPEs between years 2012 and 2022 / 2021, another company Euroconsult explains that the demand in C-band should again start increase at a slow pace in the next eight years after having been flat since 2012. Again, according to Euroconsult, the C-band should reach around 3000 TPE units by 2022, up from around 2575 in 2012 12. This slight and returned growth is expected to be reported in some emerging regions, where a number of customers especially consider the low sensitivity to rain fade as a key advantage. Concerning the applications, C-band will be used primarily for telecom traffic (e.g. trunking, backhauling, and VSAT networks) and for the delivery of TV channels to terrestrial networks in certain regions (Americas in particular). The main explanation for this unusual trend of initially a flat market and later a slight growth is that the satellite industry is a “relatively slow-moving” industry and that if new technologies have an impact on older ones, it takes years to change. Euroconsult underlines that as a limiting factor, the C-band, more than the Ku-band, is still likely to be in competition with the Ka-band in certain areas, especially corporate networks and broadband access which is adding to the uncertainty of the demand forecast. FIGURE 4 Regular Capacity-Demand by frequency band (2008-2022, in TPEs) 11 Report, Seminar on Fixed and Mobile Satellite Services, (https://www.citel.oas.org/en/Pages/Seminars-and-Workshops.aspx). 12 CITEL, April 7, Euroconsult study, Satellite communications and Broadcasting markets survey, 20th edition 10 2013 13 On the other hand, according to NSR analyst , the dominant market for C-band remains to be video distribution. Growth in channels of all flavors, such as standard definition (SD), high definition (HD), Ultra HD or three dimensional (3D) TV systems will continue in several markets around the world. As the chart below shows, global C-band transponder demand is predicted to remain relatively flat or increase slightly between years 2011 and 2016, and then demand will begin to drop off from year 2017 and onwards. FIGURE 5 Global C-band TPE demand by application Source: http://www.nsr.com/ A summary conclusion from the above could accordingly be that the demands for TPEs in the C-band have come to a halt and will remain flat for the years to come up to years 2021 / 2022. Euroconsult communicates additionally that HTS capacity (mainly Ka-band, with certain systems operating in Ku-band and, to a lesser extent, C-band) still remains the minority of the market and is currently still very much North America-centric. The future growth for the HTS is, however, expected to be more significant than the growth of regular capacities. The market value of HTS capacity should triple within the next two years. This may be an indicator where the focus of the satellite industry and businesses will be in the future. Demand trends by Region14 Europe According to Euroconsult, in Western Europe, usage of C-band is limited. In year 2012, transponder demand was estimated to be 67 units, down from 72 units in 2011. The arrival of submarine cables in Africa and the volume of traffic between Europe and the African continent may have negatively impacted demand. Transponder demand in C-band is expected to slowly decrease in the next eight years due to decreasing needs for international traffic trunking and because most other services will be in Ku- or Ka-bands. Transponder demand should stand at around 42 units by year 2022. Middle East and North Africa Euroconsult indicates that C-band usage is expected to decrease in the coming ten-year period to 260 transponders in year 2022. While certain leases for services, such as those related to 13 14 http://www.nsr.com/news-resources/the-bottom-line/fear-not-for-c-band/. This part is mainly based on Euroconsult study. 11 military communications, may be abandoned in the C-band for other frequency bands, some churn from regular satellites to HTS satellite payloads could be observed. Sub-Sahara Africa Due to the impact of the arrival of submarine cables in Sub-Saharan Africa and to the transfer of part of the international trunking traffic, C-band usage had limited growth over the last few years prior to year 2012. Last year, however, growth in usage was stronger, from an estimated 252 units in year 2011 to 268 units in year 2012. Transponder demand in C-band is expected to amount to approximately 297 units by year 2017 and 316 units by year 2022. Most of the growth should come from video distribution services. North America Demand for C-band could decrease to around 451 units by year 2017 before increasing to 473 units by year 2022. Limited growth in capacity requirements for video distribution, coupled with demand for telecom services mostly focused on either the Ku- or Ka-bands, should negatively impact the total growth. Latin America Growth in demand for C-band is expected to be lower than for Ku-band in the coming eight-year period, but it will still lead to 606 units leased by year 2022. Lower growth in the C-band compared to Ku-band will be due to the lower expansion of telecom traffic compared to TV broadcasting, as well as to the switch from limited services to HTS satellite payloads. Nevertheless, growth in C-band demand is expected to be favoured by both telecom and video applications. Asia-Pacific In Southern Asia, C-band demand could reach about 245 transponders by year 2017 and more than 283 transponders by year 2022. While the development of telecom network services will support some growth, the deployment of HTS capacities in other bands will limit it. However video distribution services will also support increasing demand. In North-East Asia, a slight decrease in C-band demand should lead to lower fill rates of the transponders in the next two years to three years. Transponder demand in C-band is expected to decrease over the forecast period to 37 units in year 2022. In Central Asia, a recent lack of demand in C-band may be associated with redefined priorities between national and international markets. Based on expected growth in telecom services and video distribution applications, transponder demand in C-band should reach around 206 units by year 2017 and 255 units by year 2022. In the Pacific, transponder usage in C-band was estimated to stand at 51 units in year 2012, down from the year 2011 total of 56 units. Usage has remained largely flat over the last four years with an estimated demand of 51 – 56 units. Transponder demand in C-band will likely be impacted by slowly growing demand for traffic trunking in the coming years and by the progressive transfer of terminals from “regular” satellite capacity to HTS satellite systems. By year 2022, transponder demand in C-band is expected to stand at 56 units. Conclusions Countries are having diverging uses and positions on the range 3400 – 4200 MHz (C-band) providing a fragmented representation of conditions. Even so, this study, based on 40 countries, is offering a representative summary view on the C-band usage on a global basis. Through the results, it can be noticed that climate conditions, size of countries, quality of terrestrial networks and population densities are key differentiation factors related to the C-band adoption at national level while considering the opportunities to share with IMT-Advanced application in the mobile service. The demands for transponder equivalents (TPEs) in the C-band have come to a halt and will remain flat up to year 2021 / 2022. The introduction of new technologies in the satellite industry, such as Adaptive Coding and Modulation (ACM), and high capacity medium earth orbit (MEO) 12 satellites etcetera is allowing for a gradual shift from the C-band to higher frequency Ka- and Ku-bands. The trends of increased mobile broadband uses and numbers of subscriptions are confirming the need for urgent reviews of the sharing opportunities with the satellite service with regard to the spectrum allocations for use of IMT in the C-band. Based on the studied countries, the findings are suggesting that there is already a trend in the countries, to consider allocations to the mobile service and identifications for IMT. On the band 3400 – 3600 MHz, opportunities are already identified and most of the countries wish to harmonize this band for mobile broadband usage. In CEPT, also the band 3600 – 3800 MHz, opportunities are already identified and several countries wish to harmonize this band for broadband MFCN usage. On the 3800 – 4200 MHz band, there are many ongoing discussions on sharing feasibility. At the European Union level, the availability of the C-band–mainly 3400 – 3800 MHz is essential for the fulfillment of the “1200 MHz objective”. This C-band offers opportunity to extend the harmonization of the band allocation. Our view is that geographical separation and/or the usage of macro and small cell (low power) as well as indoor use for IMT networks would be facilitating spectrum sharing between IMT and satellite systems in FSS subject to different geographical sharing approaches including the use of protection zones. Furthermore, we are of the view that lessons learned based on concrete experiences from early deployments of IMT could be exploited to accelerate the allocations of additional spectrum in this range. Understanding the study results from some countries will be key in order to define a roadmap with regard to spectrum evolutions. ______________ 13
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