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National Gazette No. 42829, 08 November 2019, Vol 653, Page 183

20191108 - National Gazette No 42829 of 08-November-2019, Volume 653, page 183

Page	183 of 280
Gazette	National Gazettes, No 42829, from 08 November, 2019
Department	ICASA
Notice	Page No. 119 of 209, Notice No. 600, Electronic Communications Act (36/2005), as amended » Notice regarding the Final International Mobile Telecommunications (IMT) Roadmap 2019

STAATSKOERANT, 8 NOVEMBER 2019                      No. 42829    183

The 3300 – 3400 MHz band was identified for IMT at WRC-15 by a number of countries.  Resolution
                   223 (WRC-15) calls for compatibility studies to assess the feasibility of:

(a) co-channel  sharing  between  IMT  and  Radiolocation  systems  (including  land,
                           maritime and airborne radars) operating in the band 3300 - 3400 MHz; and

(b) adjacent band sharing between IMT operating in the 3300 – 3400 GHz band and
                           Radiolocation systems deployed in the 3100 – 3300 GHz band.

Proposal

This contribution presents in its attachment a study on the impact of aggregated macro BSs into land
                   based radars B, D and I operating in an adjacent channel. The study assumes that the BS uses
                   beamforming antennas. The results show the probability that the interference from the IMT network
                   exceeds the-6 dB I/N threshold, for a range of values of OOB emissions from at the IMT BSs.

The study shows that for a 1% to 10% exceedance probability, the maximum permitted out of block
                   emissions at the BSs should be in the range-44…-50 dBm/MHz.

The signing Administrations propose that WP5D takes account of the material presented in this
                   contribution  as part of  its process of revising the  working document in consideration of the
                   introduction of 5G IMT systems to 3300-3400 MHz.

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