5G Spectrum Related Activities of Japan
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1 5G Spectrum Related Activities of Japan Yuji Nakamura Director of New-Generation Mobile Communications Office, Radio Dept., Telecommunications Bureau, Ministry of Internal Affairs and Communications (MIC), Japan
2 Increase in subscribers to ultra-high-speed broadband services in Japan million subscribers to ultra-high-speed mobile broadband services (as of Mar. 31, 2015), an increase of approximately 1.6 times in one year. - In FY 2013, the number of subscribers to ultra-high-speed mobile broadband services surpassed the number to fixed-line services 3,000 2,500 FTTH (optical fiber) subscriptions surpassed DSL subscriptions in June 2008 and now account for about twothirds of all fixed-line broadband subscriptions [subscriptions, in 10s of thousands] FTTH DSL Fixed-line services Optical fiber million Mobile services Subscriptions to 3.9G mobile phone (LTE) access services increased approximately 1.5 times over the previous year. [subscriptions, in 10s of thousands] 3.9G mobile phones (LTE) BWA 3.9G mobile phones (LTE) million 2,000 CATV FWA FTTH overtakes DSL in June Increased approx. 1.5 times in one year , ,000 CATV 6.43 million 2000 BWA million 500 DSL 3.75 million FWA 10,000 0 Note: Some carriers changed the calculation method for CATV access services at the end of March 2010 and the end of March 2015 Note: FWA: Fixed Wireless Access Note: DSL: Digital Subscriber Line As of March. 31, 2015 平成 21 年 22 年 23 年 24 年 25 年 26 年 27 年 As of March. 31, 2015
3 Increase in Mobile Communications Traffic in Japan June 2012 H24.06 Sep Dec Mar H25.03 June 2013 Sep Dec H25.12 Mar June 2014 Sep H26.09 Dec Mar June 2015 H27.06 June 2012 H24.06 Sep Dec Mar H25.03 June 2013 Sep H25.12 Dec Mar June 2014 H26.09 Sep Dec Mar H27.06 June The number of smartphone subscribers on March 31, 2015 was million (an increase of approximately 2.6 times over three years). - Because of the increase in smartphone users and other reasons, the average monthly mobile communications traffic (per second) has risen more than 4 times in three years, reaching Gbps in June (Gbps) Average monthly traffic Over a 4-times increase in three years (bps) Average traffic per subscriber About a 3-times increase in three years
4 Evolution of Mobile Communications Systems (from 1G to 5G) 3 (bps) 10G 5G: The Fifth Generation mobile Communications Systems Traffic speed will be 10,000 times faster in 30 years 5G 1G LTE-Advanced 1Gbps 100M 10M 1M 100k 10k Packet W-CDMA 384Kbps Communications cdmaone 64Kbps Voice 9.6Kbps 2G (Digital Based) 1G (Analogue Based) Analogue Photos (still images) PDC Browser 28.8Kbps Movie CDMA2000 1x EV-DO HSDPA HSUPA 2.4Mbps 14.4Mbps 3.5G 3G (IMT-2000) LTE 100Mbps 3.9G Capacity increased by transition from TDMA to CDMA 4G Capacity increased by introducing OFDMA & MIMO A New Generation Comes Every 10 Years (year)
5 Requirements for 5G 4 Requirements of 5G High Data Speed and Ultra Low Latency, comparable to wire connections Multiple Simultaneous Connections in sensor networks <Key Properties> Peak Data Rate 10Gbps (100 x current LTE rate) *under certain circumstances could reach 20Gbps Connection density 1M connections/ km 2 (100 x current LTE) latency 1 millisecond (1/10 of current LTE) System Capacity 10Mbps/m² (1,000 x current LTE) Low power consumption (Energy Efficiency) Effective Use of Spectrum Efficiency Source ITU-R Recommendation M.2083 (IMT.VISION)
6 5G mobile communications systems: from R&D and standardization to deployment 5 Issues ahead of the smooth standardization and deployment of 5G It is important to ensure even broader frequency bands to realize faster communications and to handle 1000 times the traffic of 2010 levels 5G and subsequent systems do not use only signals on a single frequency band. Instead, they combine signals from multiple frequency bands, ranging from low VHF-band frequencies to high millimeter-band frequencies. This permits flexible radio spectrum use, in which the best usage method is selected depending on the location, time, and application, and realizes more stable communications.
7 WRC-15 Agenda 1.1 Current Status in Region3 Region 第 3 地域 3 Additional spectrum allocations to the MS on a primary basis and identification of additional frequency bands for IMT カ国において特定 Countries MS 6 MHz Japan 日本 450~470MHz グローバル特定 Global 698~ 790MHz 790~960MHz グローバル特定 Global 1710~2025MHz グローバル特定 Global IMT IMT IMT IMT IMT IMT ~2200MHz グローバル特定 Global ~ 2500~2690MHz 2400MHz グローバル特定 Global BWA (TDD) MHz Region 第 3 地域 カ国に 9カ国において特定おいて特定 Countries Countries FSS FS 割り当て済 FSS 現在検討中 FS 3400~3500MHz 3500~3600MHz 将来利用予定 Japan 日本 IMT- IMT-Advanced IMT-Advanced? IMT-Advanced? Background Japan supports the following bands for IMT identification: MHz, MHz, MHz Agenda Item 1.1: to consider additional spectrum allocations to the mobile service on a primary basis and identification of additional frequency bands for International Mobile Telecommunications (IMT) and related regulatory provisions, to facilitate the development of terrestrial mobile broadband applications, in accordance with Resolution 233 (WRC-12); A list of potential candidate frequency bands (Underlined bands include Japan s supporting bands): /698, , , , , , , , , , , , , , , , , , MHz Method(s) to satisfy the agenda item : Method A No change Method B Make an allocation to the MS on a primary basis (Table of Frequency Allocations (ToA) / Footnote (FN) ) Method C To identify the frequency band for IMT
8 WRC-15 Agenda 1.1 Japan s View: (1) To cope with rapidly increasing mobile traffic, taking into account the studies on spectrum requirement for IMT in ITU-R, sufficient bandwidths should be secured to meet future IMT spectrum demand. (2) Technical studies conducted by ITU-R should be taken into account in order to protect existing services when considering additional allocation to the mobile service and identification for IMT on a worldwide basis (or on a Regional basis, or by footnotes which contain a number of countries names, depending on circumstances). (3) Results of studies on suitable frequency ranges for IMT in ITU-R WP 5D include but are not limited to the frequency ranges / MHz, MHz and MHz. (4) Considering the studies in ITU-R, Japan supports that the MHz, MHz and MHz bands are allocated to the mobile service on a primary basis and identified for IMT on a worldwide basis (or on a Regional basis, or by footnotes which contain a number of countries names, depending on circumstances). Inputs to WRC-15 Contribution from APT Additional spectrum allocations to the MS on a primary basis and identification of additional frequency bands for IMT APT Common Proposals (ACPs) are developed for fifteen frequency bands under AI 1.1 (Underlined bands include Japan s supporting bands): To support additional identification for IMT (i.e. Method C) : MHz and MHz To support NOC to the Radio Regulations (i.e. Method A) : /698 MHz, MHz, MHz, MHz, MHz, MHz, MHz, MHz, MHz, MHz, MHz, MHz, MHz Not to develop ACPs: MHz, MHz, MHz, MHz Contribution from Japan Japan submits contributions for WRC-15 regarding the bands not included in the ACP MHz (with 11 APT countries) MHz MHz, MHz (with 3 APT countries) MHz (with Australia) MHz (with Sweden) MHz 7
9 WRC-15 Agenda 10 The preliminary agenda for the subsequent conference 8 Japan proposes the new Draft Agenda Items for WRC-19 Identification of IMT in the frequency band(s) above 6GHz Japan proposes a new agenda item for WRC-19 which considers identification of frequency bands for IMT between 6 to 100 GHz including possible additional allocations to the mobile service on a primary basis. Inputs to WRC-15 Contribution from APT APT approved APT Common Proposal (ACP) for this new Draft Agenda Item for WRC-19 including some bands Japan proposed at the APG15-5 meeting GHz, GHz, GHz, GHz, GHz, GHz, GHz (Underlined frequency bands include the bands Japan proposed) Contribution from Japan Japan submits a multi country contribution with Singapore for WRC-15. In the contribution, in addition to the frequency ranges indicated in the ACP, Japan and Singapore also propose to include the following frequency ranges for study under this agenda item: GHz, GHz, GHz, GHz, GHz
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