1. CJK IMT 28 Xi’an, China 2-3 Jun. 2011 CJK IMT 28, Xi’an, China 1/4 CJK-IMT28-014 Possible contribution for Revision of Rec. ITU-R M.1580/1581 ATARASHI, Hiroyuki (atarashi@nttdocomo.co.jp)

2. 2/4 CJK IMT 28, Xi'an, China Background WP 5D had finalized the revision of Rec. ITU-R M.1580/1581 in its 9 th meeting. However, a point was raised in the Plenary on how to appropriately portray information in these documents related to bands where IMT is being deployed on a regional or national basis that are not specifically identified for IMT in the ITU Radio Regulations. In the 10 th meeting of WP 5D, the input contribution 5D/917 (Russian Federation) proposed complete removal of information regarding to the emission limits for such non-IMT bands.  Significant discussion was held on this issue in the meeting, however, WP 5D has reached no conclusion at this point in time.  The planned finalization of both Recommendations is scheduled for the 12 th meeting of WP 5D (planned in October, 2011). ARIB will prepare a contribution on this issue based on the views explained in the next slide.

3. 3/4 CJK IMT 28, Xi'an, China Views on Rec. ITU-R M.1580/1581 (1) As indicated in the scope and recommends part, these Recommendations just provide unwanted emission characteristics of IMT-2000 base/mobile stations.  Scope: This Recommendation provides the generic unwanted emission characteristics of IMT-2000 of IMT-2000 base stations …  recommends 1) that the unwanted emission characteristics of IMT-2000 base stations should be based on the limits contained in the technology specific Annexes 1 to 6 which correspond to the radio interface specifications described in § 5.1 to 5.6 of Recommendation ITU R M.1457.  The contents of these Recommendations should be regarded as technology specifications of IMT-2000 radio interfaces and should not be limited to the information for the IMT bands. Even in the non-IMT bands, other services were taken into account properly in developing of unwanted emission characteristics for IMT-2000 stations.  noting a) the work carried out by standardization bodies to define limits to protect other radio systems and services from interference and to enable coexistence between different technologies;

4. 4/4 CJK IMT 28, Xi'an, China Views on Rec. ITU-R M.1580/1581 (2) With regard to the information on non-IMT bands, we support Note 7 in the draft revisions agreed WG-TECH Plenary in the 9 th meeting.  NOTE 7 – Frequency bands or parts of the bands referenced in this recommendation which are marked with “#” are not identified for IMT in the ITU Radio Regulations. On the other hand noting c) and Note 7 suggested in the 10 th meeting could be a possible approach.  noting c) That the notes and annexes of this recommendation - being based on the ongoing work in external organizations – in order to reflect the wide applicability of IMT-2000 technologies and to maintain consistency with the technology specifications, may contain material which reflects information related to the technology applications in bands beyond those identified for IMT.  Note 7 - Material where “noting c” applies is marked with “#”