  Wi-Fi provides cost-effective data capacity at hotspots in conjunction with
broadband cellular networks. The hotspots are required to capture a large
number of users and provide high data rates. Data rates, over the Wi-Fi
interface, are influenced by the media access protocol, which loses throughput
due to delays and unintended collisions when a large number of users are
active. The hotspot range which determines the number of users, that can
associate, is limited by the lower power of the client rather than the access
point. By diverting the traffic destined to the access point via another access
network, both range and efficiency can be improved. This uplink redirection or
diversion is achieved by simultaneous use of the Wi-Fi and LTE radio
interfaces. Three options - loose, tight, and hybrid integration are presented
towards providing enhanced capacity and coverage.
