Abstract: A wireless mobile communication device may include a transmitter configured to wirelessly transmit MMS messages over a wireless network communication system. The device may also include a plurality of user applications. Each user application may be of a different type and configured to generate content for an MMS message based on input to the wireless mobile communication device. The mobile communication device may include an MMS client configured to generate MMS messages based on content supplied by the user applications. The MMS client may be configured to generate a value for a field of information within each MMS message that is indicative of the type of user application which supplies content for the MMS message. The value may be different for each different type of user application.

Abstract: In response to a location assistance request initiated by a mobile device on a private network and directed to a data access port of a location server in a public mobile communication network, a source network address is extracted from the received request. If the extracted source network address is determined to be associated with a trusted private network domain, location assistance data obtained by the location server is provided to the mobile device on the private network without requiring any proprietary messaging schemes or application-specific authentication credentials.

Abstract: A user initiates a request for determination of position of a mobile device in an area where there is no GPS signal. The position of the mobile device is determined by using cell tower triangulation methods using the wireless operator network. If the mobile device is in communication with a wireless local area network access point, the mobile device provides information about the address of the wireless local area network access points within range and the signal strength of the wireless access points. The server then stores the determined position in a database in connection with each address and signal strength provided by the wireless local area network access point. Thus the position of the wireless local area network access point has now been recorded and can be used in the future to determine the position of a mobile device.

Abstract: In response to a location assistance request initiated by a mobile device on a private network and directed to a data access port of a location server in a public mobile communication network, a source network address is extracted from the received request. If the extracted source network address is determined to be associated with a trusted private network domain, location assistance data obtained by the location server is provided to the mobile device on the private network without requiring any proprietary messaging schemes or application-specific authentication credentials.