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The WLAN integration at the UMTS radio access level is a promising interworking approach, which provides the mobile operator with additional license-free bandwidth, enhances vertical handover performance and facilitates common management of all the available radio resources. The benefits are achieved at cost of various modifications of the UMTS radio access network. The modifications may be designed...
Complementary characteristics of the WLAN and WWAN networks have led to the current research efforts towards their integration. The integration can be done at different levels in the network, resulting in interworking architectures of different capabilities and with different degrees of complexity. We concentrate here on the WLAN integration at the UMTS radio access level. Due to diversity of the...
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