Method and terminal device for transmitting location information in internet-oriented networks
View Patent ↗A location information (li) which is available in a mobile terminal device (ME-T) and which indicates the geographical location of the terminal device (ME-T) is embedded in messages (m) of a SIP protocol (SIP) which are exchanged between the terminal device (ME-T) and the network (WLAN) during the establishment of a session and/or during a session and/or during the registration of a terminal device (ME-T) in the network (WLAN), e.g. LAN or UMTS, or during request of a service or a function. By advantageously complementing the SIP protocol (session initiation protocol), the location information can be transmitted from a mobile terminal device (ME-T), which optionally has a telephone function, to the network (WLAN) in any signaling state, thereby substantially reducing the economic outlay for implementing the transmission of location information (li) to the network (WLAN).
1. A method of transmitting location information within a network having a first server and a second server comprising:
a first terminal device determining a geographical location of the first terminal device;
the first terminal device determining location information based on the determined geographical location of the terminal device;
the first terminal device forming a message having a header and a body, the header having a location information identifier identifying a presence of the location information within the body and a data type identifier identifying a data type of the location information, the body having the location information and address information, the address information identifying the second server as an intended recipient of the location information;
the first terminal device sending the message to the first server;
in response to receiving the message, the first server determining the location information is intended for the second server based on the address information of the message and subsequently sending the location information to the second server;
the second server receiving the location information from the first server and subsequently processing the location information to alter a format of the location information so that the processed location information is in a format capable of being processed by a second terminal device and subsequently transmitting the processed location information to the second terminal device;
the second terminal device receiving the processed location information transmitted by the second server;
the second terminal device displaying the geographical location of the first terminal device as a representation based on the received processed location information transmitted by the second server, the representation having at least two dimensions for illustrating the geographical location of the first terminal device.
2. The method of claim 1 wherein the processed location information transmitted to the second terminal device identifies an address at which the location information is downloadable from the second server.
3. The method of claim 1 wherein the processed location information identifies a postal address of the geographical location.
4. The method of claim 1 wherein the processed location information is a network address of the first terminal device.
5. The method of claim 1 wherein the first terminal device is a mobile terminal device and the second terminal device is a mobile terminal device.
6. The method of claim 1 wherein the network is a wireless network.
7. The method of claim 1 wherein the first terminal device has a telephone function.
8. The method of claim 1 wherein the message is created in accordance with Session Initiation Protocol.
9. The method of claim 1 wherein the second server has a location information aid for processing the location information so that the processed location information is suitable for display by the second terminal device.
10. The method of claim 1 wherein the second server has a location information aid for processing the location information so that the processed location information is suitable for display by the second terminal device such that the processed location information represents the location information via a two dimensional representation of the geographical location.
11. The method of claim 1 wherein the location information is comprised of an x-coordinate value, a y-coordinate value, and a z-coordinate value for identifying the geographical location.
12. The method of claim 1 wherein the location information is comprised of an x-coordinate value and a y-coordinate value for identifying the geographical location.
13. The method of claim 1 wherein the second server processing of the location information is comprised of inserting geographical location information identified by the location information into a map that is transmittable in a format for processing by the second terminal device for display of the map having the inserted geographical location information via the second terminal device; and
wherein the second terminal device displaying the geographical location of the first terminal device by displaying a map based on the processed location information received from the second server.
14. The method of claim 1 wherein the message is formed by the first terminal device to establish a communication session or to establish a session between the network and the first terminal device.
15. The method of claim 1 wherein the message is formed to register the first terminal device with the network.
16. The method of claim 1 wherein the message is formed by the first terminal device in response to the first terminal device receiving a prompt from a service communicating with the first terminal device.
17. The method of claim 1 wherein the message is formed during establishment of a communication session between the first terminal device and the second terminal device.
18. The method of claim 1 wherein the message is formed during a communication session between the first and second terminal devices.
19. The method of claim 1 wherein the message is formed during registration of the first terminal device with the network.
20. The method of claim 1 wherein the message is formed and sent by the first terminal device in response to prompting by an element of the network.