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The roaming function among operators allows subscribers to receive services from their operator by use of other affiliated operator's infrastructure. This article reports JRC has developed the roaming features on its WiMAX system and established system architecture of the user authentication, QoS authorization, IP address allocation and accounting functions under the roaming. Collaborating regional WiMAX operators, subscribers can receive more enhanced the convenience of their WiMAX service.

Takeo Kimura
Yasushi Suzuki
Koichi Yagishita