| 摘要 |
PURPOSE:To operate a protocol in an end-to-end way by utilizing a standard terminal equipment prevailing in an analog wired exchange network and making communication through a radio channel and minimizing the intervention to the protocol. CONSTITUTION:A function such as 2 wire/4 wire conversion, DC feeding, generation of a call signal is provided to a subscriber interface 103 and an interface 103 is connected to a personal computer 4b through a 2-wire transmission line. As a result, a MODEM section 102b is connected while being opposite to a MODEM section (not shown) of the personal computer 4b and the general software such as the CCITT. V.22bis relating to the communication system is adopted for the MODEM section of personal computer communication. In the V.22bis, the hand-shake sequence for automatic reply is decided and the MODEM section in the personal computer 4b and the MODEM section 102b of a mobile station are operated opposite to each other and the transmission speed or the like is decided. Thus, the conditions of connection sections 102a of the mobile station and a base station are reflected on the sequence. |
