Telecommunication Systems, Inc.

Telecommunications Systems, Inc.

Joel Groen

Joseph Pohutsky

Steve Helme

Gordon John Hines

William Wells

Myron D'Souza

Joseph Hannan

David Bartnik

LBS support to CDMA mobiles while roaming on another network. IS-801 session data is routed by a routing gateway to a correct visited network PDE that contains correct BSA data, which is used to return assistance data to an interrogating mobile device. A standalone exemplary roaming LBS routing gateway (XRG) provides network connectivity between PDE equipment in multiple carrier networks. Conventional LBS roaming support is defined via the use of Mobile Position Centers (MPCs). The invention implements a roaming LBS gateway to enable roaming between CDMA carriers that are only using a PDE (Positioning Determining Entity) for this purpose, since a mobile position center (MPC) is typically an optional network node according to location based services (LBS) specifications.

Roaming gateway enabling location based services (LBS) roaming for user plane in CDMA networks without requiring use of a mobile positioning center (MPC)

The present invention provides a '411xx' value added service to wireless users. The disclosed '411xx' service allows a mobile user who may be unfamiliar with their current geographic location to nevertheless obtain quick, accurate, and current information relating to the geographic area, e.g., different services in their current location, stores, libraries, gas stations, etc., via a mobile terminated (MT) short message system (SMS) message. In addition to the traditional &#x2018;4-1-1&#x2019; dialed digits, a mobile user would also dial a number (or numbers) representing a feature code for a particular service, e.g., nearby ATMs, or traffic information. Upon receiving a 411xx call, the MSC generates an ORREQ/TCAP trigger based on a translation of the requested service represented by the extra &#x2018;xx&#x2019; digits. The 411xx call is terminated on the MSC after an audible whisper notice plays to the caller, e.g., 'thank you for calling, your requested information will be sent momentarily'.

Wireless network location-based reference information

Growing community of inventors

Seattle, WA, United States of America

Joel Groen