Data transmission in packet-switched radio system implementing user equipment location service

• US 20060209806A1
• Filed: 05/03/2006
• Published: 09/21/2006
• Est. Priority Date: 05/22/2000
• Status: Active Grant

• Current Assignee: Veijo Vanttinen
• Original Assignee: Veijo Vanttinen
• Inventors: Vanttinen, Veijo
• Granted Patent: US 7,474,647 B2
• Time in Patent Office: Days
• US Class Current: 370/352
• CPC Class Codes: G01S 5/0036 of measured values, i.e. measurement on mobile and position calculation on base station
• CPC Class Codes: H04W 4/029 Location-based management or tracking services
• CPC Class Codes: H04W 4/12 Messaging; Mailboxes; Announcements
• CPC Class Codes: H04W 64/00 Locating users or terminals or network equipment for network management purposes, e.g. mobility management
• CPC Class Codes: H04W 80/04 Network layer protocols, e.g. mobile IP [Internet Protocol]

Abstract

The invention relates to method and system for transmitting data between user equipment and serving mobile location center in packet-switched radio system implementing user equipment location service. Data to be transmitted is placed in a message of a third-layer radio resource protocol; the radio resource protocol message is transmitted to the radio network using a logical link control protocol set on the second layer of the packet protocol stack; a logical link control protocol relay set on the second layer of the packet protocol stack in the radio network directs the logical link protocol message to a second party; the second-layer logical link control protocol residing in the second party transmits the radio resource protocol message to the radio resource protocol set on the third layer; the second party disassembles the transmitted data from the radio resource protocol message.

Claims

1. A user equipment of a packet-switched radio system, wherein the packet-switched radio system implements a user equipment location service and comprises a network part comprising a core network and a radio network having a data transmission link to the core network and a radio link from the radio network to the user equipment, the radio network comprising a serving mobile location center for locating the user equipment and a second-layer logical link control relay set on the packet protocol stack, the serving mobile location center comprising a third layer radio resource protocol set on the packet protocol stack and a logical link control protocol set on the second layer, wherein the user equipment comprises a third-layer radio resource protocol set on a packet protocol stack and a logical link control protocol set on a second layer.

2. A user equipment as claimed in claim 1, in which the radio resource protocol is a radio resource location service protocol.

3. A user equipment as claimed in claim 1, in which the logical link control protocol is similar to the logical link control protocol between a mobile station and a support node belonging to the core network of the radio system in a public packet radio service.

4. A user equipment as claimed in claim 1, in which the logical link control protocol comprises means for setting its own service access point identifier to a radio resource protocol message in a logical link protocol frame.

5. A user equipment as claimed in claim 4, in which the logical link control protocol comprises means for using a separate address space for the logical link control protocol frames which contain a radio resource protocol message.

6. A user equipment as claimed in claim 4, in which the logical link control protocol relay comprises means for examining the service access point identifier of the logical link control protocol message received from a mobile station and for routing said message to the serving mobile location center if the service access point identifier is that of the radio resource protocol.

7. A user equipment as claimed in claim 1, in which the logical link control protocol comprises means for encrypting the data to be transmitted.

8. A user equipment as claimed in claim 1, in which the logical link control protocol residing in the location center comprises means for supporting more than one simultaneous radio resource protocol entities residing in different user equipment.

9. A user equipment as claimed in claim 1, in which the data to be transmitted relates to one of the following location service messages:

request to define the location of a mobile station, message to provide the location of a mobile station, message containing data assisting in location, acknowledgement of data assisting in location, and protocol error message.