A standardization of AGNSS-Packet Timing Hybrid for a Synchronization of Femtocell 


Vol. 36,  No. 12, pp. 1611-1622, Dec.  2011


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  Abstract

The synchronization is one of the important issues for successful operation of femtocell. The synchronization of femtocell is distinctly different from that of larger wireless base stations in a number of important respects such as 1) The femtocell is located in indoor environment which may make it difficult to receive the adequate GNSS signals. 2) The backhaul of femtocell is connected to the public network which may have more PDV than private network. 3) The entire cost of femtocell needs to be very low. In our thesis, we investigate the candidate solutions including AGNSS (Assisted GNSS), NTP (Network Time Protocol), PTP (Precision Timing Protocol) and Cellular Network Listen for indoor timing solution. We propose the AGNSS-PTP Hybrid scheme which can improve time and frequency quality by selecting the better reference between AGNSS and PTP, and cover the standard status which are under discussion from IEEE, ITU-T, and IETF.

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  Cite this article

[IEEE Style]

김정훈, 이지훈, 신준효, 정석종, "A standardization of AGNSS-Packet Timing Hybrid for a Synchronization of Femtocell," The Journal of Korean Institute of Communications and Information Sciences, vol. 36, no. 12, pp. 1611-1622, 2011.

[ACM Style]

김정훈, 이지훈, 신준효, and 정석종. 2011. A standardization of AGNSS-Packet Timing Hybrid for a Synchronization of Femtocell. The Journal of Korean Institute of Communications and Information Sciences, 36, 12, (2011), 1611-1622.

[KICS Style]

김정훈, 이지훈, 신준효, 정석종, "A standardization of AGNSS-Packet Timing Hybrid for a Synchronization of Femtocell," The Journal of Korean Institute of Communications and Information Sciences, vol. 36, no. 12, pp. 1611-1622, 12. 2011.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880