TH19191B - Positioning with USSD - Google Patents

Abstract

DC60 (10/02/41) To provide a mechanism to ensure the availability of necessary location information within a mobile communication network, and therein its transmission to the appropriate network mode when required for a mobile station (MS) to operate in a digital cellular communication network that supports unstructured supplemental data, consisting of a service path to handle standard services between mobile stations (MS) and a digital cellular network interface path to handle the interface functions of the mobile station (MS) and an unstructured supplemental data path to establish a service agreement channel with the digital cellular network for the forwarding of the unstructured supplemental data interface. Specifically, the location information path is used to identify the cell identifier for cells within the digital cellular network where the mobile station (MS) is roaming and also provides the cell identifier output via the unstructured supplemental data interface path. Under this inscription, it is possible to use the most accurate location information to provide location-specific services from the network in the digital cellular network. To provide a mechanism that ensures the availability of necessary location information within a mobile communication network, and to transmit it thereto to the appropriate network mode when required, a mobile station (MS) is required to operate in a digital cellular communication network that supports unstructured supplemental data. This mechanism comprises service paths to handle standard services between mobile stations (MS) and digital cellular network interface paths to handle the interface functions of the mobile station (MS), and unstructured supplemental data paths to establish service agreement channels with the digital cellular network for the forwarding of unstructured supplemental data. Specifically, the location information path is used to identify the cell identifier for cells within the digital cellular network where the mobile station (MS) is roaming, and also provides the cell identifier output via the unstructured supplemental data interface path. According to this invention, it is possible to use the most accurate location information to provide location-specific services from the network in the digital cellular network.

Claims (16)

1. Mobile station (MS) for use in a digital cellular communication network supporting unstructured ADS data services, comprising: a) Service paths to handle standard services between the mobile station (MS) and the digital cellular communication network; b) Interface paths to handle the human-machine interface functions at the mobile station (MS); c) Unstructured ADS data paths to establish a service agreement channel with the digital cellular communication network for the transmission of unstructured ADS data interfaces, which are governed by: d) Location information paths deployed to identify cell identifiers for cells within the digital cellular communication network where the mobile station (MS) is roaming, and providing cell identifier output via the unstructured ADS data interface path. 2. A mobile station for a digital cellular communication network as defined in Claim 1, which is governed by the nature of which the local information identification method is adapted to identify the base station identification code (BSIC) within the digital cellular communication network. 3. A mobile station for a digital cellular network as specified in either Claim 1 or 2, which is governed by a characteristic of having a local information identification method that triggers an additional service data interface method that is not constructed under the reception and decoding of requests from the digital cellular network. 4. A mobile station for a digital cellular network as described in either Claim 2 or 3, which is governed by the characteristics of which the mobile station consists of a method for detecting the base station identification code (BSIC) to detect changes in the active base station identification code (BS) during mobile station roaming (BS) within the digital cellular network, and by which the method for identifying local information is adjusted to output the adjusted base station identification code (BSIC) as detected by the method for detecting the base station identification code. 5. A digital cellular communication network with at least one public terrestrial mobile network consisting of: a) at least one mobile service switching center (MSC) deployed to transmit unstructured supplemental data to at least one base station subsystem in the digital cellular communication network; b) at least one home address register (HLR) used to store permanent subscriber line data and provide permanent subscriber line data output to the mobile service switching center; c) at least one visitor address register (VLR) used to store and configure temporary subscriber line data and provide temporary subscriber line data output to the mobile service switching center; d) at least one base station subsystem (BSS) connected to the mobile service switching center and deployed to transmit unstructured supplemental service data to at least one mobile station. Roaming into the digital cellular network, which is governed by the following characteristics: e) A visitor location register with a method of storing a cell identifier, which is deployed to store a cell identifier for the mobile station roaming into the digital cellular network, which is transmitted through the base station subsystem. 6. A digital cellular communication network, as defined in Claim 5, which is governed by characteristics other than the home location register, with the capability of storing a second cell identifier in addition to the mobile station cell identifier. 7. A digital cellular network as defined in Claim 5, which is governed by the nature of the cell identifier stored in the first cell identifier path or the second cell identifier path, which is used at the request of an application program operating in network mode of the digital cellular network. 8. A digital cellular communication network as defined in claim 5, which is governed by the characteristic that cell identifiers stored in the first cell identifier path or the second cell identifier path are automatically adjusted each time the cell identifier changes due to mobile station roaming. 9. A digital cellular communication network as defined in any one of Claims 5 through 8, which is governed by the characteristic in which the cell identifier will function as a base station identification code in the digital cellular communication network. 10. A digital cellular communication network as defined in claim 9, which is governed by the nature of the visitor location register, shall have a means of connection to combine the portion in the first cell identifier's collection path with the member information of subsequent collection paths for storage in the visitor location register. 11. The digital cellular communication network as defined in claim 10, which is governed by the nature of the connection path, shall include the portion in the path of the first cell identifier with the subscriber information relating to roaming stored in the home location register. 12. A digital cellular communication network as defined in claim 10, which is governed by the nature of which the connection path includes a portion of the path of the storage of the first cell identifier with the roaming-related information stored in the visitor's location register. 13. A method for providing location-specific services on a digital cellular network that supports unstructured supplemental information services, consisting of the following steps: a) establishing a communication channel between a mobile station roaming into the digital cellular network and at least one network node of the digital cellular network; b) providing network-based services initiated at a network node based on location information received from a mobile station roaming into the digital cellular network. 14. The method specified in Claim 13, which is governed by the nature of which location information will be transmitted from a mobile station upon request from a network node. 15. The method specified in Claim 13, which is governed by the nature of which location information is automatically transmitted from a roaming mobile station into the cellular network digitally into a network node each time the location information is adjusted. 16. Any of the methods specified in Claims 13 through 15, which govern how the Active Base Station Identification Code (BSIC) is selected as location information and transmitted as unstructured supplemental service information.