Abstract
This paper describes terminating call control for Personal Handyphone System (PHS), which is achieved by simultaneously forwarding terminating call control messages to multiple interfaces. The Network Assisted Reforwarding (NAR) scheme in which a terminating call control message is reforwarded after a certain period of time to improve the likelihood of its receipt by the personal station (PS), is described. The NAR scheme is modeled and analyzed. This paper also proposes an enhanced NAR (E‐NAR) scheme in which the terminating call control messages are reforwarded only if the response is not received within a certain time‐period. The E‐NAR scheme is modeled, analyzed and compared with the NAR scheme. Finally, a secure control method that prevents fraud for terminating call control is proposed.
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Suzuki, S., Ihara, T. & Shikata, Y. PHS terminating call control. Wireless Networks 3, 1–8 (1997). https://doi.org/10.1023/A:1019121704480
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DOI: https://doi.org/10.1023/A:1019121704480