http://www.rfc-editor.org/rfc/rfc5985.txt
RFC 5985: HTTP-Enabled Location Delivery (HELD), M. Barnes2010-09-01T23:00:00-00:00This document defines a Layer 7 Location Configuration Protocol (L7 LCP) and describes the use of HTTP and HTTP/TLS as transports for the L7 LCP. The L7 LCP is used for retrieving location information from a server within an access network. It includes options for retrieving location information in two forms: by value and by reference. The protocol is an extensible application-layer protocol that is independent of the session layer. [STANDARDS-TRACK]