| LS | Title | From | To | Approval date |
| SG15-LS144 | LS/r on invitation to update the information in the IMT2020 roadmap (reply to JCA-IMT2020-LS03) | SG15 | JCA-IMT2020; | 2018-10-19 |
| SG5-LS69 | LS/r on Invitation to update the information in the IMT2020 roadmap (reply to JCA-IMT2020-LS03, JCA-IMT2020-LS02) | SG5 | JCA-IMT2020; ITU-R WP 5D; | 2018-09-21 |
| SG17-LS139 | LS/r on SG17 updates to the IMT2020 roadmap | SG17 | JCA-IMT2020; | 2018-09-07 |
| SG11-LS64 | LS/r on invitation to update the information in the IMT2020 roadmap (reply to JCA-IMT2020-LS03) | SG11 | JCA-IMT2020; | 2018-07-27 |
| MEF-JCA-IMT2020 Liaison Response | Reply to Invitation to update the information in the IMT2020 roadmap | MEF | SG15; | 2018-07-26 |
| MEF-LS122 | LS/r on invitation to update the information in the IMT2020 roadmap
(reply to JCA-IMT2020-LS03) [from MEF Forum]
| MEF | JCA-IMT2020; | 2018-07-26 |
| ITU-R WP 4B-LS19 | LS/r on update of information in the IMT-2020 roadmap | ITU-R WP 4B | JCA-IMT2020; | 2018-07-17 |
| SG2-LS72 | LS/r on Feedback to LS/i on Invitation to update the information in the IMT2020 roadmap (reply to JCA-IMT2020-LS03-E and JCA-IMT2020-LS02-E) | SG2 | JCA-IMT2020; | 2018-07-13 |
| ETSI ISG MEC-LS2 | LS/r on invitation to update the information in the IMT2020 roadmap (reply to JCA-IMT2020-LS03) [from ETSI ISG MEC] | ETSI ISG MEC | JCA-IMT2020; | 2018-06-26 |
| JCA-IMT2020-LS03 | LS on Invitation to update the information in the IMT2020 roadmap [to ITU study groups and external IMT-2020 liaison partners] | JCA-IMT2020 | ITU-D; ITU-R; TM Forum; MEF; TTA; IEEE 802.1; 3GPP TSG RAN; NGMN Alliance; ONF; oneM2M; ETSI ISG NFV; IETF SFC; IEEE 1914; SG2; SG3; SG5; SG9; SG11; SG12; SG13; SG15; SG16; SG17; SG20; TSDSI; SCF; OASIS Tosca; ETSI ISG MEC; ETSI MWT; ONAP; OSSDN; IETF DETNET; IETF DMM; 3GPPP CNT; 3GPP SSA; BBF AM; BBF RT; BBF WWC; GSMA Netwrok2020; | 2018-04-13 |
| JCA-IMT2020-LS02 | LS on Invitation to update the information in the IMT2020 roadmap [to ITU study groups and external IMT-2020 liaison partners] | JCA-IMT2020 | ITU-D; ITU-R; TM Forum; MEF; TTA; IEEE 802.1; 3GPP TSG RAN; NGMN Alliance; ONF; oneM2M; ETSI ISG NFV; IEEE Intercloud Working Group; IETF SFC; IEEE 1914; SG2; SG3; SG5; SG9; SG11; SG12; SG13; SG15; SG16; SG17; SG20; SCF; OASIS Tosca; ETSI ISG MEC; ETSI MWT; ONAP; OSSDN; IETF DETNET; IETF DMM; 3GPPP CNT; 3GPP SSA; BBF AM; BBF RT; GSMA Netwrok2020; | 2017-11-10 |
