Preliminary Views on WRC-19 Agenda Items 1.13, 1.16 and 9.1(Issue 9.1.1, 9.1.5, 9.1.8)

APG19-2/INP-09

/ ASIA-PACIFIC TELECOMMUNITY / Document:
The 2nd Meeting of the APT Conference Preparatory Group for WRC-19 (APG19-2) / APG19-2/INP-09
17 – 21July2017, Bali, Republic of Indonesia / 7 July 2017

Korea (Rep. of)

preliminary views on WRC-19 agenda items 1.13, 1.16 and 9.1(issue 9.1.1, 9.1.5, 9.1.8)

Agenda Item 1.13:to consider identification of frequency bands for the future development of International Mobile Telecommunications (IMT), including possible additional allocations to the mobile service on a primary basis, in accordance with Resolution238(WRC15);

Resolution 238 (WRC-15) - Studies on frequency-related matters for International Mobile Telecommunications identification including possible additional allocations to the mobile services on a primary basis in portion(s) of the frequency range between 24.25 and 86 GHz for the future development of International Mobile Telecommunications for 2020 and beyond

1. Background

WRC-15 adopted Resolution 238 (WRC-15), which invites ITU-R to study frequency-related matters to identify frequency bands for IMT-2020 under WRC-19 Agenda Item 1.13 (AI 1.13).

Resolution 238 (WRC-15) calls for studies to determine the spectrum needs for the terrestrial component of IMT in the frequency range between 24.25 GHz and 86 GHz, as well as sharing and compatibility studies, taking into account the protection of services to which the band is allocated on a primary basis, for the frequency bands:

-24.25-27.5 GHz[1], 37-40.5 GHz, 42.5-43.5 GHz, 45.5-47 GHz, 47.2-50.2 GHz, 50.452.6 GHz, 66-76 GHz and 81-86 GHz, which have allocations to the mobile service on a primary basis; and

-31.8-33.4 GHz, 40.5-42.5 GHz and 47-47.2 GHz, which may require additional allocations to the mobile service on a primary basis.

Recently, other regional preparatory groups for WRC-19 have started studying the WRC-19 AI 1.13. Especially, some regional groups have developed their preliminary views on the WRC-19 AI 1.13 as following table, by prioritizing certain bands among 11 frequency ranges:

Groups / Status and preliminary views
Region 1 / - ASMG: Support initiating studies in the frequency bands listed below, which are included in Resolution 238 (WRC-15)
∙24.25 – 27.5 GHz, 31.8 – 33.4 GHz, 40.5 – 42.5 GHz and 42.5 – 43.5 GHz
∙Not supporting discussing any study or contribution on the frequency bands which are not included in Resolution 238 (WRC-15) in the work of TG 5/1
- ATU: Under discussion
- CEPT: Support studies on sharing and compatibility studies for the bands listed in Resolves 2 of Resolution 238 (WRC-15), with the focus on the frequency bands 24.25 – 27.5 GHz, 31.8 – 33.4 GHz and 40.5 – 43.5 GHz
- RCC: It is reasonable to perform studies on IMT system compatibility first of all in the frequency bands 24.25 – 27.5 GHz, 31.8 – 33.4 GHz, 40.5 – 42.5 GHz and 66 – 71 GHz, where global harmonization could be achieved.
Region 2 / - CITEL: Under discussion

As the responsible group for the WRC-19 AI 1.13, ITU-R Task Group 5/1 (TG 5/1) is conducting the designated sharing and compatibility studies in portion(s) of the frequency range from 24.25 GHz to 86 GHz, in accordance with Resolution 238 (WRC-15). But the studies might not be completed due to the time constraints and amount of items for studying, taking into account experience from previous WRC cycles. In order to minimize the time-consuming workloads and to use the time efficiently, therefore, APG needs to prioritize frequency ranges/bands among 11 frequency ranges listed in Resolution 238 (WRC-15) and start the discussion from the APG19-2.

The bands below 40.5 GHz would be beneficial taking into account equipment readiness and radio propagation characteristics compared to higher bands above 40.5 GHz. It is noted that the band 66-71 GHz is considered the use on a non-license basis rather than IMT band.

As one of Work Programs within APT, as APG19-1 requested, AWG sent information on its progress on current studies in relation to WRC-19 Agenda Item 1.13 (APG19-2/INP-07). For continuing cooperation between APG and AWG in relation to Agenda Item 1.13, the APG19-2 is requested to send a response to liaison statement to AWG in order for AWG to provide its progress studies.

2. Preliminary Views

The Republic of Korea strongly supports frequency bands 24.25 – 27.5 GHz, 31.8 – 33.4 GHz and 37 – 40.5 GHz listed in Resolution 238 (WRC-15).

And the Republic of Korea proposes to the APG19-2 that:

-APT Members should prioritize, as early as possible, which frequency ranges/bands listed in AI 1.13 could be supported, in order to facilitate discussions within APG meetings and to harmonize with other regional preparatory groups for WRC-19, taking into account the proposed workplan in Attachment 1 to this contribution.

-APG19-2 should send a response liaison statement to AWG on the basis of Attachment 2 to this contribution, in order for AWG to provide further information on its ongoing study status and progress continuously in terms of WRC-19 AI 1.13 appropriately.

Agenda Item 1.16:to consider issues related to wireless access systems, including radio local area networks (WAS/RLAN), in the frequency bands between 5 150 MHz and 5 925 MHz, and take the appropriate regulatory actions, including additional spectrum allocations to the mobile service, in accordance with Resolution 239 (WRC‑15);

1. Background

Resolution 239 (WRC15)resolves to invite ITU-R;

a)to study WAS/RLAN technical characteristics and operational requirements in the 5 GHz frequency range;

i)to conduct studies with a view to identify potential WAS/RLAN mitigation techniques to facilitate sharing with incumbent systems in the frequency bands 5 150-5 350 MHz, 5 350-5 470 MHz, 5 725-5 850 MHz and 5 850-5 925 MHz, while ensuring the protection of incumbent services including their current and planned use;

b)to perform sharing and compatibility studies between WAS/RLAN applications and incumbent services in the frequency band 5 150-5 350 MHz with the possibility of enabling outdoor WAS/RLAN operations including possible associated conditions;

c)to conduct further sharing and compatibility studies between WAS/RLAN applications and incumbent services addressing:

i)whether any additional mitigation techniques in the frequency band 5 350-5 470 MHz beyond those analysed in the studies referred to in recognizing a) would provide coexistence between WAS/RLAN systems and EESS (active) and SRS (active) systems;

ii)whether any mitigation techniques in the frequency band 5 350-5 470 MHz would provide compatibility between WAS/RLAN systems and radio determination systems;

iii)whether the results of studies under points i) and ii) would enable an allocation of the frequency band 5 350-5 470 MHz to the mobile service with a view to accommodating WAS/RLAN use;

d)to also conduct detailed sharing and compatibility studies, including mitigation techniques, between WAS/RLAN and incumbent services in the frequency band 5 725- 5 850 MHz with a view to enabling a mobile service allocation to accommodate WAS/RLAN use;

e)to also conduct detailed sharing and compatibility studies, including mitigation techniques, between WAS/RLAN and incumbent services in the frequency band 5 850-5 925 MHz with a view to accommodating WAS/RLAN use under the existing primary mobile service allocation while not imposing any additional constraints on the existing services,

It is noted that sixteenAPT Members also allocated to mobile services in the band 5 725-5 850 MHz on a primary basis in accordance with RR No.5.453.

2. Preliminary Views

The Republic of Korea does not support the use of WAS/RLAN in the band 5 350-5 470 MHz unless results of ITU-R studies show that sharing and compatibility can be achieved with existing services including radiolocation.

The Republic of Korea supports the worldwide use of the band 5 725-5 850 MHz for mobile service taking into account RR No.5.453.

Agenda Item 9.1:to consider and approve the Report of the Director of the Radiocommunication Bureau, in accordance with Article 7 of the Conventionon the activities of the Radiocommunication Sector since WRC-15;

Issue9.1.1:Resolution 212 (Rev.WRC-15) - Implementation of International Mobile Telecommunications in the frequency bands 1 885-2025MHz and 2 110 2 200 MHz

1. Background

Resolution 212 (Rev. WRC-15) invites the ITU-R to study possible technical and operational measures to ensure coexistence and compatibility between the terrestrial component of IMT (in the mobile service) and the satellite component of IMT (in the mobile service and the mobile-satellite service) in the frequency bands 1 980-2 010 MHz and 2 170 2 200 MHz where those frequency bands are shared by the mobile service and the mobile-satellite service in different countries, in particular for the deployment of independent satellite and terrestrial components of IMT and to facilitate development of both the satellite and terrestrial components of IMT.

ITU-R Working Party 5D (WP 5D) is responsible for the studies requested in the invites ITU-R with respect to the terrestrial component of IMT, taking into account the technical and operational characteristics provided by WP 4C and Working Party 4C (WP 4C) is responsible for the studies requested in the invites ITU-R with respect to the satellite component of IMT, taking into account the technical and operational characteristics provided by WP 5D.The conclusion of the draft CPM text shall be agreed by both WP 4C and WP 5D.

Based on the above, WP 5D and WP 4C have jointly developed the working document towards a preliminary draft new [Recommendation/Report] ITU-R M.[MSS/IMT-ADVANCED SHARING].

2. Preliminary Views

The Republic of Korea supports to conduct ITU-R studies on possible technical and operational measures to ensure coexistence and compatibility between the terrestrial component of IMT and the satellite component of IMTin the frequency bands 1980–2010MHz and 2170–2200MHz in different countries. The Republic of Korea isof the view that the discussion ofWRC-19 AI 9.1 (issue 9.1.1) should be limited to possible technical and operational measures to ensure their coexistence, as addressed in Resolution 212 (Rev.WRC-15), and the regulatory consideration is its out of scope.

Issue9.1.5:Resolution 764 (WRC- 15) - Consideration of the technical and regulatory impacts of referencing Recommendations ITU R M.1638 1 and ITU R M.1849 1 in Nos. 5.447F and 5.450A of the Radio Regulations

1. Background

Resolution 764 (WRC15)resolves to invite ITU-R:

1to investigate the technical and regulatory impacts on the services referred to in Nos. 5.447F and 5.450A that would result from referencing Recommendation ITU R M.1638-1 in place of Recommendation ITU R M.1638-0 in those footnotes, while ensuring that no undue constraints are imposed on the services referenced in these footnotes;

2to investigate the technical and regulatory impacts on the services referred to in Nos 5.447F and 5.450A that would result from adding a new reference to Recommendation ITU R M.1849-1 to these footnotes, while ensuring that no undue constraints are imposed on the services referenced in these footnotes

2. Preliminary Views

The Republic of Korea supports the ITU-R studies on consideringprotection of the existing services without undue constrains when incorporated by reference of the recent version of Recommendations.

Issue9.1.8:Resolution 958 (WRC-15) - Studies on the technical and operational aspects of radio networks and systems, as well as spectrum needed including possible harmonized use of spectrum to support the implementation of narrowband and broadband machine-type communication infrastructures, in order to develop Recommendations, Reports and/or Handbooks, as appropriate, and to take appropriate actions within the ITU Radiocommunication Sector (ITU-R) scope of work

1. Background

Resolution 958 (WRC-15) calls for ITU-R to study technical and operational aspects of radio networks and systems, as well as spectrum needed, includingpossible harmonized use of spectrum for narrowband and broadband machine-type communication (MTC)infrastructure in order to develop Recommendations, Reports and/or Handbooks, as appropriate. ITU-R Working Party 5D (WP 5D),which is responsible group on Agenda Item 9.1 (Issue 9.1.8), is developing working document towards a preliminary draft new Report ITU-R M.[IMT. MTC] and the draft CPM texts. At present, it was tentatively agreed not to identify new spectrum dedicated exclusively for MTC applications, which means no changes are needed in the Radio Regulations.WPs 5A and 1B are concerned group for this issue and started the development of working document towards a preliminary draft new Report ITU-R M.[IOT/M2M_UASGE]and SM.[LPWAN.MTC]respectively.

It is informed that in the Republic of Korea, varioustypes of MTCapplications have been provided in frequency bands on a non-license basis shown below as well as 800 MHz and 1.8 GHz bands based on IMT technology:

-917-923.5 MHz, 940-946 MHz

-1 788-1 792 MHz

-2 400-2 483.5 MHz

-5 725-5 850 MHz

2. Preliminary Views

The Republic of Korea supportsITU-R studies on technical and operational aspects of radio networks and systems, as well as on spectrum needed,includingpossible harmonized use of spectrum for narrowband and broadband machine-type communication (MTC)infrastructure in order to develop Recommendations, Reports and/or Handbooks, as appropriate.

The Republic of Korea has a preliminary view that APT Members consider the following frequency bands, as categorized on a regulatory basis, for possible harmonized use of spectrum to support the implementation of MTC applications taking into account example frequencies in relevant ITU-R documents:

-The existing and future IMT identification bandstaking into account IoT applications of IMT-based technologies.

-License-exempt bands such as 900 MHz, 1.7GHz, 2.4 GHz, 5.8 GHz taking into accountLow Power Wide Area Network technologies.

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APG19-2/INP-09

Attachment 1: Proposal for draft workplan for WRC-19 Agenda Item 1.13 within APG

Date / APG Actions(Outcome from APG19-1, APG19-1/OUT-02) / Proposed AI 1.13 Actions
APG19-2
Mid-July 2017 /

• Consideration of the study results of ITU-R Study Groups
• Develop preliminary views on WRC-19 agenda items based on Members’ contributions
• Consideration of the outcomes of RAG-24 and take appropriate actions for the preparation of RA-19
• Develop preliminary view on RA-19 related issues based on members’ contributions, if any
• Assign WRC-19 agenda item coordinators in each Working Parties of APG

/

• Develop a workplan on WRC-19 AI 1.13
• Develop preliminary views on WRC-19 AI 1.13
• Collect and share information on relevant studies within AWG and TG 5/1, if needed.

APG19-3
July/August2018 /

• Consideration of the study results of ITU-R Study Groups
• Update preliminary views on WRC-19 agenda items based on the outcomes of APG19-2 and members’ contribution
• Consideration of the outcomes of RAG-25 and take appropriate actions for the preparation of RA-19
• Develop and update preliminary view on RA-19 related issues considering the outcomes of APG19-2 and members’ contributions
• Development of any radiocommunication related proposals for PP-18 for the consideration of APT Preparatory Group for PP-18

/

• Update preliminary views on WRC-19 AI 1.13 focusing on preferred frequency ranges/bands, based on inputs from APT Members
• Collect and share information on relevant studies within AWG and TG 5/1, if needed.

APG19-4
December 2018/Mid-January 2019 /

• Finalize APT contributions to the CPM19-2
• Update preliminary views on WRC-19 agenda items
• Arrangements for coordination during CPM19-2

/

• Update preliminary views on WRC-19 AI 1.13 and finalize preferred frequency ranges/bands based on inputs from APT Members (deadline for inputs should be discussed on APT Members’ supporting frequency ranges/bands)
• When available, develop an APT contributions to the CPM19-2, if agreed
• Collect and analyze information on relevant studies within AWG and TG 5/1, if needed.

APG19-5
July/August2019 /

• Finalize Preliminary APT Common Proposals for RA-19 and WRC-19
• Arrangements for coordination during RA-19 and WRC-19

/

• Finalize Preliminary APT Common Proposal(s) for WRC-19 AI 1.13
• Consider information on relevant studies within AWG, if any.

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APG19-2/INP-xx

Attachment 2: Proposed a response liaison statement to AWG

Chairman, APG

Response Liaison statement to AWG

The APT Conference Preparatory Group (APG) appreciates the liaison statement (APG19-2/INP-07) from the APT Wireless Group (AWG) to provide information on its progress ofthe studiesrelated to WRC-19 agenda item 1.13.

APG19-2 recognized that two studies related to Agenda Item 1.13 are under progress. One is to collect information on usage and future plan forthe frequency bands being considered under WRC-19 agenda item 1.13 from APT Members. The other is to perform a work item in relation to the sharing and compatibility study above 24 GHz in terms of Agenda Item 1.13.

In reply to the liaison statement from AWG, the APG19-2 would like to request further information and progress on a work item in relation to the sharing and compatibility study in terms of Agenda Item 1.13 at the next APG meetings. The continuing information would be useful for APG activities when APG conducts the relevant studies.

The APG looks forward to continuing its cooperation with the AWG.

The APG-19 meetings are planned as follows:

APG Meeting / Month / Year / Venue
APG19-3 / TBD / TBD
APG19-4 / TBD / TBD
APG19-5 / TBD / TBD

Dr. WEE, Kyujin

Chairman, APT Conference Preparatory Group for WRC-19 (APG-19)

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[1]When conducting studies in the band 24.5-27.5 GHz, to take into account the need to ensure the protection of existing earth stations and the deployment of future receiving earth stations under the EESS (space-to-Earth) and SRS (space-to-Earth) allocation in the frequency band 25.5-27 GHz.