ZTE Communications ›› 2015, Vol. 13 ›› Issue (2): 46-52.doi: 10.3969/j.issn.1673-5188.2015.02.009

• Research Paper • Previous Articles     Next Articles

Terminal-to-Terminal Calling for GEO Broadband Mobile Satellite Communication

Qing Wang,Minjiong Zhu,Jie Zhou,Zhen Gao,, Jinsheng Yang   

  1. School of Electrical Information Engineering, Tianjin University, Tianjin 300072, China
  • Received:2014-11-21 Online:2015-06-25 Published:2015-06-25
  • About author:Qing Wang (wqelaine@tju.edu.cn) received her BEng, MEng., and PhD degrees in electronic engineering from Tianjin University, China, in 2004, 2007, and 2010. Since 2010, she has worked in the School of Electronic and Information Engineering, Tianjin University, and is currently an associate professor there. From October 2007 to April 2009, she was a visiting scholar in the School of Electrical and Electronic Engineering, Nanyang Technological Univeristy, Singapore. Her research interests include wireless communication, passive radar, and radio propagation.
    Minjiong Zhu (zhuminjiong@sina.cn) received his BS degree in electronic information engineering from Tianjin University, China, in 2014. He is currently pursuing the MS degree there. His research include software-defined networking and 5G mobile communication.
    Jie Zhou (zhoujie_tju@163.com) received her BS and MS degrees in communication engineering from Tianjin University, China, in 2011 and 2015. Her research interests include architecture design for wireless mobile communication, especially for satellite mobile communication systems, as well as physical-layer algorithms in wireless mobile communication.
    Zhen Gao (zgao@tju.edu.cn) received his BS, MS and PhD degrees in electrical and information engineering from Tianjin University, China, in 2005, 2007 and 2011. From October 2008 to November 2010, he was a visiting scholar at Georgia Tech, USA, working on the design and implementation for OFDM-based cooperative communication. From July 2011 to November 2014, he was an assistant researcher with the Wireless and Mobile Communication Research Center, Tsinghua University, China. He has been an associate professor at Tianjin University since December 2014. His research interests include mobile satellite communication, fault-tolerant signal processing, and wireless communication systems.
    Jinsheng Yang (jsyang@tju.edu.cn) is an associate professor in the School of Electronic Information Engineering, Tianjin University, China. His research interests include the channel characterizations and modeling for wireless communications and networking-based information solutions.

Abstract: Satellite and terrestrial components of IMT-Advanced need to be integrated so that the traditional strengths of each component can be fully exploited. LTE/LTE-A is now a recognized foundation of terrestrial 4G networks, and mobile satellite networks should be based on it. Long transmission delay is one of the main disadvantages of satellite communication, especially in a GEO system, and terminal-to-terminal (TtT) design reduces this delay. In this paper, we propose a protocol architecture based on LTE/LTE-A for GEO mobile satellite communication. We propose a detailed call procedure and four TtT modes for this architecture. We describe the division of tasks between the satellite gateway (SAT-GW) and satellite as well as TtT processing in the physical layer of the satellite in order to reduce delay and ensure compatibility with a terrestrial LTE/LTE-A system.

Key words: TtT call, LTE/LTE-Advanced, satellite communication system