M I C. Table １： Comparison of the number of base stations regarding cellular systems among Japan, the U.S. and the U.K. Note: .
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Data of the number of base stations is as of March 2005 in Japan, as of December 2004 in CTIA HP in U.S. and as of December 2004 in MOA (Mobile Operators Associations) Report in U.K.
Figure 1: Outline of Guidelines for Radio Spectrum Reallocation
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[FUTURE CORE RADIO COMMUNICATION SYSTEMS]
[POLICIES FOR RADIO SPECTRUM REALLOCATION]
[Reports by the Telecommunications Council]
Proposal regarding “Radio Policy Vision”
Mobile Communication Systems
Phased revision of the Frequency Allocation Plan will be implemented in compliance with the Radio Law.
Following is the frequency demand (5-6 GHz band or below) calculated by the ITU-formulated prediction method. This data is based on estimation of such as the number of medium/long-term cellular phone and PHS subscribers and necessary transmission speeds.
Establishment of the World’s Most Advanced Wireless Broadband Environment
Wireless LAN/NWA systems
Following is the frequency demand (mainly the 5 GHz band) calculated by the ITU-formulated prediction method. This data is based on estimation of such as the number of medium/long-term users of wireless LANs and necessary transmission speeds.
Direction of Future Radio Policy
I. Major revision in frequency allocation
II. Development of legal framework for frequency reallocation
III. Major revision in Spectrum Usage Fee system
IV. Promotion of R & D
V. Facilitating smooth prevalence of radio equipment
VI. Enhancing international strategy
VII. Development of a secure and safe environment for radio spectrum utilization
Terrestrial TV Broadcasting
1) Frequency assignment for prompt development of digital broadcasting at a national level.
2) From 2012 onward, the UHF band will be utilized by mobile communication systems, etc.
3) From 2011 onward, the VHF band will be assigned to respond to new demands, in light of the possible future needs such as digital terrestrial sound broadcasting and mobile communications
At present, 135 kHz band (10-135 kHz), 13.5 MHz band (13.553-13.567 MHz), 2.4 GHz band (2.4-2.4835 GHz), etc. are reserved. Nevertheless, reservation of new frequency bands near the 950 MHz band is also taken into consideration to respond to various needs.
Advanced use of electronic tags is being developed in various fields such as physical distribution (e.g., IC cards for automatic ticket gates, product control, and physical distribution control).
1) UWB wireless system: A system is planned to be established next year based on the Telecommunications Council report which now studying of technical requirements to utilize the micro wave band (3.1-10.6 GHz).
2) ITS related radio communication systems: Efficient use of existing frequencies in the 5.8 GHz band (5.77-5.85 GHz) shall be promoted, along with a study to utilize other frequencies, to respond to future technological developments.
3) Quasi-zenith satellite system: Possibilities shall be studied in regard to communication, broadcasting, and Global Positioning services by taking the following into consideration: WRC-03 decision to allocate the 2.6 GHz band (2.605-2.630 GHz) for sound satellite broadcasting, Frequencies that can be assigned for communication and Global Positioning services, and Future R & D trends.
4) Intelligent home appliances: Based on the investigation results of radio spectrum utilization and market needs, details such as frequencies to be utilized and the necessary bandwidth shall be studied, with assignment of frequencies near the 5 GHz band taken into consideration.
UWB, ITS, Quasi-Zenith Satellite System, Intelligent Home Appliances, etc.
The radio communication systems will be improved, its core technology development will be fostered, and introduction of the system will be promoted.
NWA system: NWA is the abbreviation of Nomadic Wireless Access.
It is a system for non-residential wireless access such as “hot spots.”
RFID: Abbreviation of Radio Frequency Identification. It is electronic tagging.
UWB system: UWB is the abbreviation of Ultra-wide Band. It is the ultra-wide band wireless system.
ITS: Abbreviation of Intelligent Transport System. It is an advanced road traffic system.
Figure 2 Reallocation： Outline of Legal Framework etc. to Promote Radio Spectrum Reallocation
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Systemic reforms to promote frequency reallocation have been conducted todevelop a wireless
broadband environment such as mobile phone and wireless LAN/wireless access systems.
Presentation on Guidelines for Radio Spectrum Reallocation and Surveys on Radio Spectrum Usage
Rapid Withdrawal of Existing Radio Stations and Establishment of Registration System
Consideration of Several Elements related to Economic Value of Radio Spectrum
Establishment of a Radio Spectrum Usage Fee System taking into consideration Several Elements (Power, Assigned Band Width, Degree of Congestion etc.) related to Economic Value of the Spectrum and Modification of fees
(Revision of the Radio Law is expected in the Diet during 2005)
Establishment of a Compensation
System for Spectrum Refarming due to
Rapid Withdrawal of Existing Radio Stations
Establishment of Registration System for
Specific Radio Stations
(Revision of the Radio Law in 2004)
Introduction of Surveys, Evaluations and Publications of Radio Spectrum Usage
(Revision of the Radio Law in 2002)
Formulation of Guidelines for Radio Spectrum Reallocation
(Publication in October of 2003 )
Development of the world’s most advanced wireless broadband environment
M I C Reallocation
Figure 3: Outline of Surveys, Evaluations and Publications of Radio Spectrum Usage and Spectrum Reallocation
All of the radio spectrum is divided into the following three sections. Surveys are conducted every year on one of the sections.
1 Below 770MHｚ
2 Above 770MHｚ/below 3.4GHｚ
3 Above 3.4GHｚ
- Number of radio stations
- Years radio facilities have been
- Replaceability with other
means of telecommunications
such as optical fiber cables etc.
Surveys on Radio Spectrum Usage
Views of evaluation for efficient
radio spectrum usage
Publication of the survey results
-Need for spectrum refarming to meet new demand for radio spectrum
-Need for continuation of existing radio spectrum usage
1 Distribution of radio stations, etc.
2 Usage of radio equipment
-Actual usage of radio equipment
3 Presence of substitutability
4 Others (new technology, demand trends etc.)
Consultation to the Radio Regulatory Council
Evaluation of the extent of efficiency in radio spectrum usage on each frequency band
Ex. of survey results
Spectrum is used effectively now.
Spectrum should be compressed.
Fixed micro wave links should be
transferred to optical fiber, etc..
Survey for economical influence to existing licensees
Report from the Radio Regulatory Council
Modification of the Frequency Allocation Plan
M I C ReallocationTable 2：Progress of Radio Spectrum Reallocation