Welcome to join in the 2021 International Conference on Telecommunications and Information Engineering (ICTIE 2021)， which will be held in Osaka, Japan during October 23-25, 2021. For papers submitted to ICTIE 2021, we offer the publication as following: Publication in IJEETC. Submissions will be peer reviewed by conference committees and IJEETC editorial board, and accepted papers will be published in the International Journal of Electrical and Electronic Engineering & Telecommunications, which will be indexed by Scopus, Google Scholar, Crossref, Citefactor. There are two methods for submitting your paper: 1.By Microsoft Submission system: http://confsys.iconf.org/conference/ICTIE2021 2.By our contact email box: ictie@etpub.com Please feel free contact with us: Jennifer Zeng (Conference Secretary) E-mail: ictie@etpub.com Tel:+86-28-86512185 For more information about international conferences, please visit our conference website: ICTIE 2021 Website: http://www.ictie.org/