Sieneon started Soft Switch research in 1997 when it proposed the
concept of PDM (packet division multiplex) by integrating the networking
and switching together. In 2000, Sieneon proposed the Software Defined
Modules for its common access point platform for the PDM networks. In
2001, this soft-switch concept had been applied for B3G base-station
projects and implemented the wireless access point platform for the UMTS/
cdma2000/ OFDMA infrastructure. Currently, Sieneon is applying it into the
4G OWA (open wireless architecture) infrastructure with optimal resource
management throughout the whole networks.
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