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TR 36.745RAN4
Feasibility study on Global Application of
LTE Band 11 and of LTE Band 21 UEs

use "3GPP‑Page" to get the Word version
for a better overview, the Table of Contents (ToC) is reproduced
V14.0.0 (Wzip)  2016/12  14 p.

WI Acronym:  FS_LTE_B11_B21_global
Rapporteur:  Mr. Kihara, Kenichi

The present document is to evaluate possible methods and conditions for existing Band 11 and Band 21 UEs to comply with a new satellite protection requirement defined by ITU-R.
Band 11 (UE transmit: 1427.9 - 1447.9 MHz, BS transmit: 1475.9 - 1495.9 MHz) and Band 21 (UE transmit: 1447.9 - 1462.9 MHz, BS transmit: 1495.9 -1510.9 MHz) have been operated for some time in Japan. On the other hand, there has been a long standing discussion in ITU-R on the interference from the cellular to satellite operated next to the bands.
In WRC-15, it was concluded that 1.5 GHz (1427 - 1518 MHz) was identified as IMT spectrum and at the same time the unwanted emission limit for UEs (IMT Mobile station) operated in 1427 - 1452 MHz was mandated to protect EESS (Earth Exploration-Satellite Service) Final Acts WRC-15. Note that this limit does not apply to UEs for which the notification information was received by ITU-R before the last day of WRC-15, i.e. UEs in Japan.
With those decisions, while Band 11 and 21 could potentially be utilized for the new IMT spectrum other than in Japan, existing Band 11 and 21 UEs if operated outside Japan has to comply with the unwanted emission limits. This could be done with RB restriction controlled by a BS scheduler and/or multiple NS/Pemax when appropriate but these schemes are determined based on UE assumptions in 3GPP and it is quite difficult for an organization outside to evaluate or estimate.
In this study, the methodologies and actual conditions mentioned above are studied

full Table of Contents for  TR 36.745  Word version:   14.0.0

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