Annex 1. Interim Report By Study Group for Wireless Broadband Promotion. <Outline> April Study Group for Wireless Broadband Promotion

Transcription

1 Annex 1 Interim Report By Study Group Wireless Broadb Promotion <Outline> April 2005 Study Group Wireless Broadb Promotion

2 Milestones Milestones radio radio spectrum spectrum reallocation reallocation Radio Policy Vision (Telecommunications Council report, July 2003) Increasing dem radio spectrums Frequency Open Policy Guidelines Spectrum Reallocation (mulated announced in October 2003) (1) [Amendment Radio Law: enacted in May 2002] Conduct surveys on radio utilization I. Dynamic review radio spectrum allocation II. Policies frequency reming radio spectrum use III. Rem Spectrum User Fee IV. Promotion R&D V. Facilitating smooth prevalence radio equipment VI. Enhancing international strategy VII. Building a safer securer environment radio spectrum use (detailed surveys since FY2003) Formulation Action Plan Spectrum Reallocation (3) [under the discussion in the Diet] Concrete measures wireless Amendment a radio spectrum broadb promotion user fee that takes into account Reorganization Allocation the congested radio spectrum current spectrum use new system reflects economic value (2) [Amendment Radio Law: enacted in May 2004] Creation government grants radio spectrum redistribution Introduction registration system Research development the expansion radio spectrum resources Implementation radio spectrum reallocation Development an environment unrestrained radio utilization Change frequency assignment plan In addition to mobile phones, various systems using radio, such as wireless LANs RFID, have been developed become widely used. However, because the limitation scarcity radio spectrum, more strategic radio administration will be required. In view these circumstances, Radio Policy Vision (July 2003, Telecommunications Council) Guidelines Spectrum Reallocation (Oct. 2003, Ministry Internal Affairs Communications (MIC)) were mulated. In order to meet future needs in radio utilization, bwidths at least 1.5 GHz in the useful frequency b 6 GHz or less require reallocation. For this reason, MIC institutionalized radio utilization surveys created compensation system radio spectrum reming. Moreover, a proposal revision the Radio Law is now under discussion in the Diet to amend a radio spectrum user fee reflecting economic value to conduct research development aimed at exping radio resources. Under these circumstances, it is important to implement the wireless broadb that is crucial to a ubiquitous era.

3 Objectives Objectives the the Study Study Group Group Wireless Wireless Broadb Broadb Promotion Promotion Radio Policy Vision (Telecommunications Council report, July 2003) Guidelines Spectrum Reallocation (MIC, October 2003) It is urgently necessary to work out concrete measures wireless broadb promotion. Creation a new lifestyle Thin displays News, drama, variety programs, etc. Study developments in both domestic international wireless broadb services Discussions at meetings the Study Group Wireless Broadb Promotion Identification challenges in wireless broadb promotion Examination measures promotion Identification future wireless broadb market New radio industry market development Development the world s most advanced wireless broadb environment Implementation a ubiquitous network society e-japan Strategy II Radio Policy Vision, etc. This study group mainly aims at developing the world s most advanced wireless broadb services environment providing concrete measures frequency reallocation. We will discuss the following issues openly, as well as at an industrywide level. Study developments in both domestic international wireless broadb services Identification future wireless broadb market Identification challenges in wireless broadb promotion, examination measures promotion, etc.

4 Current Current developments developments in in wireless wireless broadb broadb (1) (1) Movement in stardization radio communications systems mobile phones/wireless access Framework overall objectives the future development IMT-2000 systems beyond IMT-2000 High Mobility Mobile phone system communications Broadb mobile communications Wireless access system communications FWA Transmission capacity High Radio communication systems both mobile phones wireless access move in the same direction increased transmission capacity enhanced mobility. These systems are expected to have little difference in the future; theree, it is necessary to take this movement into account in considering the future system. Seamless approaches to enhance connectivity between various radio communications systems have already been partially implemented using flexible core networks such as IP. All radio communications systems are expected to have a high affinity with these packet-based communications networks. There are various stards wireless access: IEEE802.11n high-speed wireless LAN; the series wireless MAN, which has mobility substitutability DSL; BWA broadb access in the last mile. It is important, however, to stardize the wireless system as a whole based on the connection to IP core networks.

5 Current Current developments developments in in wireless wireless broadb broadb (2) (2) (Picture s next-generation intelligent home appliances utilizing radio communications) Usage 1: proximity Wireless connection to portable AV devices DV high-speed streaming Usage 2: proximity Wireless connection between devices on an AV rack HD/SD mid-to-high-speed streaming Camcorder Monitor Wireless on the backside * DVD mat: mat home digital video (DV) units Recorder * HD: high definition * SD: stard definition Usage 3: in-room Wireless connection between digital home appliances in a room Usage 4: indoor (1) AV streaming distribution from streaming servers, such as an AV server (2) -speed-streaming two-way communication: e.g., VoIP TV HD/SD mid-to-high-speed streaming (1) HD/SD mid-to-highspeed streaming (2) VoIP/MPEG4 low speed AV server (HGW) Storage PC Home appliances are increasingly digitized. As various intelligent home appliances have become prevalent in people s lives, there are multiple de facto stards. In view international conmity, the future the stardization next-generation intelligent home appliance networks utilizing radio waves are under review. As broadb promotion, because a regional divide still exists, Fixed Wireless Access systems wireless LANs, which can be provided in a shorter time less expensively than FTTH or CATV internet services, are expected to be used depending on the circumstances. In vehicle digitization, a more safer securer traffic environment is under development through the introduction new systems. One example is inter-vehicle communications collision avoidance in relatively high-risk situations such as at railroad crossings the ends traffic jams.

6 From From identification identification the the elements elements needs needs to to implementation implementation the the system system From user (system permance, options) From public accessibility (digital divide, disasterprevention/emergency communications) Fundamental viewpoints on wireless broadb From industry (m service provision, international cooperation, stardization) From security (provision secure content) From technical innovation (generalization, modularization) From efficient radio utilization (frequency reuse, system sharing, promotion competition) Needs Measures System frequency wireless implementation allocation broadb promotion Identification the elements needs Breaking s into patterns In view the questionnaire results, identify system wireless transfer technology based on the needs. Form service provision Service area Communication quality Transmission distance, speed, etc. Estimate the growth needs, etc. (Since the interim report) Frequency b spectrum bwidth needed to implement the system Issues concerning promotion their solutions, etc. To discuss frequency reallocation effectively wireless broadb promotion, the study group decided to create an image a specific wireless broadb system. In particular, we decided to identify system wireless transfer technology by identifying the elements needs breaking s into patterns based on those needs. In the end, we will work out measures frequency allocation promotion based on these. In this interim report, we broke s into patterns identified system/wireless transfer technology. Following this report, we will further examine system/wireless transfer technology advance discussions on frequency reallocation measures wireless broadb promotion.

7 Typical Typical images images various various needs needs elements elements Radio communications to which consumers are Radio communications to establish ad-hoc radio allowed to have access from anywhere without communications networks instantaneously knowing where the service is available (e.g., mobile (e.g., ITS, sensor network) ITS phones) A car is running ahead in a priority lane. Radio communications that ensures the required Data exchange quality communications (e.g., mobile phones) Entering the intersection. between cars through direct communication Too close. Changing the lane. e.g., Wireless inter-vehicle communications Accident prevention through exchange speed Radio communications that has continuous data, braking inmation, road inmation, etc. access to the Internet at anytime upon request Radio (e.g., wireless LAN, mobile wireless MAN) communications to establish LAN MAN communications circuits at lower FWA costs within economically disadvantaged area establishing wired communications networks (e.g., FWA) Short Short-distance radio communications to Radio communications that ensures the use in establish interconnection in an easier method cases emergency (e.g., wireless communications than wired communications (e.g., intelligent home disaster control) appliances)

8 Categorizing Categorizing future future type type s s comprising comprising the the needs needs elements elements In view the questionnaire results, we categorized future type s comprising various identified needs. (Linkages between the elements needs the type s are typical ones.) Needs elements Radio communications to which consumers are allowed to have access from anywhere without knowing where the service is available Radio communications that has continuous access to the Internet at anytime upon request Radio communications that ensures the required quality communications Short-distance radio communications to establish interconnection in an easier method than wired communications Radio communications to establish ad-hoc radio communications networks instantaneously Radio communications to establish communications circuits at lower costs within economically disadvantaged area establishing wired communications networks Nationwide Urban areas Type s Consumers may use the system without being conscious where the service is available; once an interconnection is established, they may make use the service, a given quality speech being guaranteed (bwidth guarantee) under any condition including travel in a car. Within their ordinary radius activities, consumers may use in a stress-free manner the service, under the broadb environment, via PCs brought from home or fice. [Mobile SOHO] Consumers are aware that the service can be available only at certain locations. They may use the easy-to-obtain multifaceted broadb service at these locations. Consumers may use, at home, fice, facilities, etc. where wired broadb services are difficult to obtain, the broadb service under almost the same conditions as those wired broadb services. Radio equipment within a short distance automatically establishes optimum machine-to-machine networks. Consumers may use such networks without being conscious communications between radio equipment. Radio equipment automatically, instantaneously by priority establishes machine-to-machine networks. Consumers may use such networks without being conscious communications between radio equipment. Integration would be possible such as Media Hover Radio communications that ensures the use in cases emergency During an emergency, such as a natural disaster, consumers are ensured the means to send receive required minimum inmation.

9 Requirements Requirements system system ms ms service service provision provision in in type type (1) (1) For type, we created scenarios in five to ten years identified system (ms service provision, service area, communication quality, etc.) wireless transmission technology (transmission distance, speed, etc.) in view the questionnaire results. Outlines ms service provision in are as follows: (1) Usage 1 Consumers may use the system without being conscious where the service is available; once an interconnection is established, they may make use the service, a given quality speech being guaranteed (bwidth guarantee) under any condition including travel in a car. (Form service provision) As this service is used by the general public, a certain level communication quality is achieved lower bwidth applications such as telephone lines. It can support high-speed mobile communication ensures nationwide service through services provided by telecommunications carriers. (2) Usage 2 Within their ordinary radius activities, consumers may use in a stress-free manner the service, under the broadb environment, via PCs brought from home or fice. [Mobile SOHO] (Form service provision) Telecommunications carriers cover wide-area communications mainly in urban areas to support a certain level transmission speed. As this service is used by the general public, a certain level connection is secured, but it is a best-eft service regarding the bwidth. (3) Usage 3 Consumers are aware that the service can be available only at certain locations. They may use the easy-to-obtain multifaceted broadb service at these locations. (Form service provision) A service which covers specific locations is available nomadic use. Available in the ms both service provision by telecommunications carriers mutual use owned-operated networks.

10 Requirements Requirements system system ms ms service service provision provision in in pattern pattern (2) (2) (4) Usage 4 Consumers may use, at home, fice, facilities, etc. where wired broadb services are difficult to obtain, the broadb service under almost the same conditions as those wired broadb services. (Form service provision) A service to complement wire communication networks in the area where the provision broadb services via wire communication networks such as DSL fiber optics is difficult. Mainly to implement communications between fixed facilities. Used as a low-cost backbone communication network in digital divide areas such as mountain areas isls, used as the last mile in urban areas. (5) Usage 5 Radio equipment within a short distance automatically establishes optimum machine-to-machine networks. Consumers may use such networks without being conscious communications between radio equipment. (Form service provision) Used communications between devices such as home appliances AV devices in proximity within a limited area, in a room or indoors. Local wireless communication between a portable home appliances an AV devices, etc. (6) Usage 6 Radio equipment automatically, instantaneously by priority establishes machine-to-machine networks. Consumers may use such networks without being conscious communications between radio equipment. (Form service provision) A service that ensures the building an ad hoc network that can process a large amount packet data quickly, without human intervention in inter-vehicle communications road-vehicle communications. (7) Usage 7 During an emergency, such as a natural disaster, consumers are ensured the means to send receive required minimum inmation. (Form service provision) To build a system that can give residents alarms or evacuation inmation without fail in emergencies such as natural disasters, that enables displaced persons victims to, without difficulty, use their terminals to exchange necessary inmation such as confirmation their safety, without being aware communication networks.

11 System System wireless wireless transmission transmission technology technology realization realization (1) (1) Usage 1 Usage 2 Usage 3 Usage 4 (System realization s) To connect mainly Human-human, humanmachine Human-human, humanmachine Human-human, humanmachine Machine-machine Form service Telecommunications carrier Telecommunications carrier Telecommunications carrier or owned-operated Telecommunications carrier or municipal initiative Service area Nationwide Wide area mainly in urban areas Certain indoor locations their surroundings Limited Mobility High Mid Connection to PSTN Significant Significant Connection to the Internet Available Available Available Available Charging system Yes Yes/No Yes/No Yes Communication quality/type Guaranteed speed, best eft Best eft Possibility large capacity in uplink if required Best eft Possibility large capacity in uplink if required Guaranteed speed, best eft Possibility large capacity in uplink if required System example Mobile phone Wireless MAN Wireless LAN FWA Security Provided by provider Provided by provider Provided by user ( provider where necessary) Provided by provider (Wireless transmission technology ) Distance (cell radius) Cell radius Several hundreds meters over 10 kilometers Cell radius Several kilometers over 10 kilometers Cell radius Up to several hundreds meters Several kilometers several tens kilometers Required transmission speed A few Mbps 1 Gbps A few Mbps 100 Mbps A few Mbps 100 Mbps A few Mbps 100 Mbps Mobile speed Less than 300 km/h Up to several tens km/h Permissible delay mid mid mid Power control Yes Yes Yes None Method establishing communication Central control system at base station Central control system at base station Carrier sense Constant connection

12 System System wireless wireless transmission transmission technology technology realization realization (2) (2) Usage 5 (System realization s) To connect mainly Machine-machine Form service Under user s initiative Service area Proximity, in-room, indoor Mobility None Usage 6 Machine-machine Under user s initiative Road High - - Usage 7 Human-human, humanmachine Telecommunications carrier or municipal initiative Connection to PSTN Connection to the Internet Charging system Communication quality/type System example Security (Wireless transmission technology ) Distance (cell radius Required transmission speed Mobile speed Permissible delay Power control Method establishing communication Yes/No Guaranteed speed (differs from service to service), best eft Possibility large capacity in uplink if required Wireless LAN (between router PC) Provided by machine Up to several tens 10 meters Up to several hundreds Mbps N/A Yes No Guaranteed speed ITS Provided by machine Up to over 100 meters A few Mbps several hundreds Mbps High None No Guaranteed speed Disaster-prevention wireless system, emergency alert signal Provided by machine Several kilometers several tens meters Up to a few Mbps - None

13 Basic Basic concept concept on on measures measures efficient efficient spectrum spectrum use use It is essential to secure the necessary frequencies introduction a new radio communication system. Accordingly, in order to secure the necessary frequencies by the required time, we have to examine how to use the frequencies currently in use more efficiently. For instance, the 3 GHz 6 GHz frequency b is mainly used fixed wireless systems, radiolocation systems, satellite communication systems, so the efficient utilization this frequency b is the key to meet the dem new frequencies in this bwidth. Measures efficient spectrum use used by fixed wireless systems, radiolocation systems, satellite communication systems are summarized in the following table. Radio communication systems Measures efficient spectrum use Fixed wireless systems Radiolocation systems Satellite communication systems (1) Replaced by a wire system such as fiber optic (2) Transition to other bwidths (3) Review frequency bwidth (4) Shared between systems by separating frequency assignment by region (5) Utilization technology efficient spectrum use <e.g.> Narrowb conversion Underlay Carrier sense between systems <e.g.> Narrowb conversion Spurious reduction Carrier sense between systems <e.g.> Reduction influence from interference Underlay

14 Contents Contents the the Interim Interim Report Report by by Study Study Group Group Wireless Wireless Broadb Broadb Promotion Promotion (Reference) Chapter 1 Introduction Chapter 2 Current developments in wireless broadb Section 1 Developments in Japan Section 2 International developments Chapter 3 Fundamental viewpoints on wireless broadb Section 1 From user Section 2 From industry Section 3 From technical innovation Section 4 From public accessibility Section 5 From security Section 6 Viewpoints from efficient radio utilization Chapter 4 From identification needs elements to implementation the system Section 1 Methodology discussion Section 2 Results the questionnaire Section 3 Identification needs elements Section 4 Categorizing future type s with the needs elements Section 5 Requirements system others in type s Section 6 Further examination needs elements, s system Section 7 Estimation the growth needs dem frequencies Chapter 5 Basic concept on measures efficient spectrum use Section 1 Promotion spectrum reallocation Section 2 Basic concept on measures efficient spectrum use in fixed wireless systems Section 3 Basic concept on measures efficient spectrum use in radiolocation systems Section 4 Basic concept on measures efficient spectrum use in satellite communication systems Section 5 Summary measures efficient spectrum use Section 6 Viewpoints to be taken into account in considering measures efficient spectrum use Section 7 Points to keep in mind in examining individual radio stations Section 8 Future practical applications Chapter 6 Future development discussion