| LS | Title | From | To | Approval date | 
			| ITU-R WP 5D-5D/TEMP/540(Rev.1) | LS on architecture and topology of IMT networks | ITU-R WP 5D | SG15; | 2015-02-11 | 
			| SG15-LS111 | LS/r on development of a draft new Report ITU-R F.[FS.IMT/BB] (reply to ITU-R WP5C-5C/TEMP/84-E) | SG15 | BROADBAND FORUM; ITU-R SG 5; Mplify Alliance; | 2014-04-04 | 
			| JCA-AHF-LS29 | LS/r on development of a Draft New Report ITU-R F.[FS.IMT/BB]: Fixed service backhaul networks for IMT and other terrestrial mobile broadband systems (reply to 5C/ TEMP/84) | JCA-AHF | ITU-R WP 5C; SG13; SG15; | 2013-09-24 | 
			| ITU-R WP 5C-5C/TEMP/84 | LS on Development of a Draft New Report ITU-R F.[FS.IMT/BB]: Fixed service backhaul networks for IMT and other terrestrial mobile broadband systems | ITU-R WP 5C | SG13; SG15; JCA-AHF; | 2013-06-05 | 
			| SG15-LS257R1 | LS/r on development of a Draft New Report ITU-R F.[FS.IMT/BB]: Fixed service backhaul networks for IMT and other terrestrial mobile broadband systems; and architecture and topology of IMT networks (reply to ITU-R WP5C/TEMP/84 and ITU-R WP5D/TEMP/540(Rev.1)) | SG15 | ITU-R WP 5C; ITU-R WP 5D; Mplify Alliance; | - |