DOCUMENT #:
GSC13-GRSC6-14
FOR:
Information
SOURCE:
ARIB
AGENDA ITEM:
GRSC-6 4.2
CONTACT(S):
y-wachi@arib.or.jp
ARIB Standards Development for
Broadband Wireless Access systems
Submission Date:
July 1, 2008
Highlight of Current Activities (1)
• Broadband Wireless Access (BWA) Sub-committee consists of
four working groups in ARIB. They mainly assume a role in
producing national standards for WiMAX, Next Generation PHS
and IEEE802.20 referring to relevant international standards.
– International Relations WG
• To establish coordination framework with relevant international
standardization bodies
– WiMAX WG
• To develop ARIB standard for mobile WiMAX system and to liaise with
relevant international standard bodies
– Next Generation PHS WG
• To develop ARIB standard for Next Generation PHS system and to liaise
with relevant international standardization body
– 802.20 WG
• To develop ARIB standard for IEEE802.20 TDD Wideband and 625k-MC
Modes and to liaise with relevant international standardization body
2
Highlight of Current Activities (2)
• Development of standards
– Standards consist of national regulatory requirements specified in
MIC Ordinance Regulating Radio Equipment and international
technical requirements standardized by international standard bodies.
– WiMAX and Next Generation PHS standards were produced under
the following titles.
• STD T-94 OFDMA Broadband Mobile Wireless Access System (WiMAX
applied in Japan)
• STD T-95 OFDMA Broadband Wireless Access System (Next Generation
PHS)
– Standardization of 802.20 is being developed in line with the
international standard by IEEE802.20 Working Group.
• Liaison with International standardization organizations
– ARIB established the liaisons with the following organizations on
reproducing their standards into ARIB standards.
• WiMAX Forum and IEEE802.16 WG for WiMAX standard
• PHS MOU for Next Generation PHS standard
3
Strategic Direction
• ARIB standards are developed in line with international standards
as much as possible and the national regulatory requirements are
incorporated into the standards as mandatory requirements.
• In case of inconsistency between national and international
requirements, national requirements must prevail.
• ARIB agrees with relevant international standard organizations on
reproducing their standard documents into ARIB standards under
the following conditions.
– International standard documents are reproduced to ARIB standard
on an as is basis.
– ARIB is allowed to copy and distribute the standards through its
website or by photocopy.
– International standard organizations disclaims all warranties in
relation to use of their documents.
4
Challenges
• As for WiMAX standard there is a need to compile international
standards since they were developed by two different
organizations. IEEE802.16 defines PHY and MAC layer
specifications, while WiMAX Forum works on profiling the
IEEE802.16 specifications and developing the upper layer network
architecture.
• Reproduction of IEEE documents in ARIB standard is subject to
consent made between ARIB and IEEE.
• ARIB needs to follow future updates of international standard
documents and to revise ARIB standards accordingly.
• There is concern that discrepancies between national regulatory
requirements and international standards exist.
5
Next Steps/Actions
• 802.20 WG plans to complete development of ARIB standard titled
as Mobile Broadband Wireless Access Systems (IEEE 802.20™
TDD Wideband and 625k-MC Modes Application in Japan).
• ARIB standards STD-94 and STD-95 are maintained and updated
in the event that the referenced international standards are
modified.
6
Proposed Resolution [optional]
• N/A
7
Supplemental Slides
8
Advanced Wireless Communications
Study Committee (ADWICS) of ARIB
Objectives - To conduct technical studies on IMT-2000,IMT-Advanced
and Broadband Wireless Access (BWA)
- To contribute to the global standardization
Missions
- Study on Technical Aspects of above three areas
- Prepare for Standard Proposals
- Contribute to Standardization at ITU
- Take Cooperation with Standardization Bodies Overseas
Advanced Wireless Communications
Study Committee
(Effective on April 1, 2006)
IMT Partnership
Subcommittee
Steering
Committee
IMT-Advanced
Subcommittee
BWA
Subcommittee
9
BWA Subcommittee
•
•
Scope of Work
– The BWA Subcommittee has been established so as to study technologies on
broadband wireless access (BWA) systems and standardize their technical
specifications as ARIB Standards.
– Currently target systems are broadband wireless access systems in the 2.5
GHz band of which technical conditions have been studied by
Telecommunications Council.
Technologies under Study
– Mobile WiMAX (based on IEEE 802.16-2004 Standard amended by 802.16e2005)
– Mobile Broadband Wireless Access (based on IEEE 802.20 Standard)
- Wideband Mode
- 625k-MC Mode
– Next-Generation PHS (based on PHS MoU Group Standard)
BWA Subcommittee
International Relations WG
WiMAX WG
802.20 WG
Next-Generation
PHS WG
10
Introduction of BWA
(Mobile Application) in Japan
•
•
•
•
May 2007
July 2007
September 2007
December 2007
:
:
:
:
MIC decided Radio Regulation
MIC decided License Policy
MIC started to receive license application
Two operators were licensed
*
G.B.
Mobile BWA
2535MHz 2545 2555
2575
G.B.
FWA
G.B.
Mobile BWA
2595
G.B.
2625
2630
Total 10MHz
*: Limited operation allowed until the end of 2014 within 2545MHz - 2555MHz.
11
Main parameters of
WiMAX/Next-Generation PHS
Mobile WiMAX
Next Generation PHS
Duplexing
TDD
TDD
Multiple Access
OFDM / OFDMA
OFDMA / TDMA
Modulation
BS
BPSK, QPSK, 16QAM, 64QAM
MS
QPSK, 16QAM
BS
Transmission Burst
Length
MS
3.65 ms, 3.55 ms, 3.45 ms, 3.35 ms, 3.25 ms, 3.15
ms, 3.05 ms, 2.95 ms, 2.85 ms, 2.75 ms,
1.35 ms, 1.45 ms, 1.55 ms, 1.65 ms, 1.75 ms, 1.85
ms, 1.95 ms, 2.05 ms, 2.15 ms, 2.25 ms
BPSK, QPSK, 16QAM, 64QAM, 256QAM
2.5 ms (same as PHS)
2.5 ms (same as PHS)
5 MHz, 10 MHz
2.4 MHz, 4.8 MHz, 9.6 MHz
Sub-Carrier Frequency Spacing
10.94 kHz
37.5 kHz
OFDM Symbol Duration
102.9 μs
30.00 μs
Transmission
Power
BS
20 W ≤
10 W ≤
MS
200 mW ≤
200 mW ≤
Antenna
Gain
BS
17 dBi ≤
12 dBi ≤
MS
2 dBi ≤
4 dBi ≤
System Bandwidth
12