Location aware content using presence information data formation with location object (PIDF-LO)

摘要

The format of the Presence Information Data Format-Location Object (PIDF-LO) as defined by the Internet Engineering Task Force (IETF) is extended or modified to accommodate, within the standard PIDF-LO format, an association of geospacial location to XML content on the Internet. A geospacial location is associated with Extensible Markup Language (XML) content on the Internet. The XML content is identified by a universal resource locator (URL), and associated with geospatial location information (either a specific location, zone, or direction). The URL is inserted into a section of a Presence Information Data Format-Location Object (PIDF-LO) compliant document as defined by the Internet Engineering Task Force (IETF). In this way, geospacial location information is associated with Internet based XML content using a standard PIDF-LO format.

主权项

1. A method of associating Multimedia Internet Message Extensions (MIME) content to a geographic location, comprising:
receiving at a physical presence server, from a physical content proxy server, a universal resource locator (URL) of MIME content; transmitting, from said physical presence server to a physical GIS server, a latitude/longitude (lat/lon) associated with said MIME content; receiving back in response from said physical GIS server a first polygon ID associated with said lat/lon of said MIME content; receiving, at said physical GIS server, a current location of a given wireless device; transmitting, from said physical GIS server to a physical application server, a second polygon ID associated with said current location of said given wireless device; receiving, from said physical application server, a request message for identification of MIME content having presence in said second polygon ID; inserting, at said physical application server, said URL of said MIME content relevant to said second polygon ID into a Presence Information Data Format-Location Object (PIDF-LO) file that lacks geospatial location information identifying a specific physical zone.