ARIB Standards Development for Broadband Wireless Access systems

1
ARIB Standards Development for Broadband Wireless
Access systems
Submission DateJuly 1, 2008
2
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

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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

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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.

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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.

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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.

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Proposed Resolution optional

• N/A

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Supplemental Slides
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Advanced Wireless Communications Study Committee
(ADWICS) of ARIB
- To conduct technical studies on
IMT-2000,IMT-Advanced and Broadband Wireless
Access (BWA) - To contribute to the global
standardization
Objectives
- Study on Technical Aspects of above three
areas - Prepare for Standard Proposals -
Contribute to Standardization at ITU - Take
Cooperation with Standardization Bodies Overseas
Missions
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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 802.16e-2005)
• 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
Next-Generation PHS WG
802.20 WG
WiMAX WG
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Introduction of BWA(Mobile Application) in Japan

• May 2007 MIC decided Radio Regulation
• July 2007 MIC decided License Policy
• September 2007 MIC started to receive
  license application
• December 2007 Two operators were licensed

Mobile BWA
Mobile BWA





G.B.
G.B.
G.B.
G.B.
FWA
2575
2595
2625
2630
2535MHz 2545 2555
Total 10MHz
Limited operation allowed until the end of
2014 within 2545MHz - 2555MHz.
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Main parameters of WiMAX/Next-Generation PHS
Next Generation PHS
Mobile WiMAX
TDD
Duplexing
TDD
Multiple Access
OFDMA / TDMA
OFDM / OFDMA
BS
BPSK, QPSK, 16QAM, 64QAM
BPSK, QPSK, 16QAM, 64QAM, 256QAM
Modulation
QPSK, 16QAM
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,
2.5 ms (same as PHS)
BS
Transmission Burst Length
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
2.5 ms (same as PHS)
MS
2.4 MHz, 4.8 MHz, 9.6 MHz
5 MHz, 10 MHz
System Bandwidth
37.5 kHz
Sub-Carrier Frequency Spacing
10.94 kHz
30.00 µs
OFDM Symbol Duration
102.9 µs
10 W
Transmission Power
20 W
BS
200 mW
200 mW
MS
12 dBi
Antenna Gain
17 dBi
BS
4 dBi
2 dBi
MS