IEEE 802.21-2017 PDF
This standard defines an extensible IEEE 802(R) media access independent services framework (i.e., function and protocol) that enables the optimization of services including handover service when performed between heterogeneous IEEE 802 networks. It also facilitates these services when networking between IEEE 802 networks and cellular networks.
The purpose of this standard is to improve the user experience of mobile devices by describing a framework and knobs that several services can utilize in a media independent manner, including the handover service between heterogeneous IEEE 802 networks. This framework is also applicable for interworking between IEEE 802 networks and cellular networks.
Revision Standard – Active. An extensible IEEE 802(R) media access independent services framework (i.e., function and protocol) is defined that enables the optimization of services including handover and other services when performed between heterogeneous IEEE 802 networks. These services are facilitated by this standard when networking between IEEE 802 networks and cellular networks. (The PDF of this standard is available at no cost compliments of the IEEE GET program http://ieeexplore.ieee.org/browse/standards/get-program/page/)