Oki Electric Industry Co., Ltd.

Makoto Fukuyoshi

Cai Dong Wang

Toru Furuhashi

Masaru Ishizuka

An ATM cell multiplexing apparatus comprising an AAL multiplexer for generating ATM cells from AAL type-2 user data, a buffer for cells to be sent for temporarily holding the ATM cells generated, and an ATM multiplexer for ATM-multiplexing ATM cells read out from the buffer for cells to be sent is configured. The buffer for cells to be sent comprises functions for discarding an ATM cell when the transmission wait time therefor exceeds a time-over period, and the AAL multiplexer comprises functions for giving priority to user data for which a higher quality of service is demanded than a discarded ATM cell, as the ATM cell to be generated immediately following the discard.

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Tokyo, Japan

Makoto Fukuyoshi