Geographical position extension in messaging for a terminal node
View Patent ↗The present invention provides methods and apparatus for supporting geographical-based services in a communications system. In an embodiment of the invention, a terminal node (e.g., a wireless terminal) inserts geographical information into a header portion of an IPv6 datagram. The serving network utilizes the geographical information to support a geographical-based service. In another embodiment, a terminal node, which is located in a geographical area, receives service configuration information regarding service regions from a serving network and determines what services are supported in the geographical area. In an embodiment, header formats for the inserted geographical information in a propagated signal between a terminal node and a serving network are provided.
1. An apparatus comprising:
at least one processor; and
at least one memory storing machine executable instructions configured to, with the at least one processor, cause the apparatus to at least:
insert information about a geographical position and a specified radius into a message header of a datagram that requests transmission of a geographical-based service and includes data of the geographical-based service, wherein the geographical position and the specified radius together specify a serving area for the transmission of the geographical-based service, wherein the datagram complies with an Internet Protocol (IP) specification and the message header is an extension header of the datagram; and
send the datagram.
2. The apparatus of claim 1 , wherein the at least one memory further stores machine executable instructions configured to, with the at least one processor, cause the apparatus to:
insert an indicator into the datagram, wherein the indicator restricts processing of the geographical position by another apparatus.
3. The apparatus of claim 1 , wherein the geographical position is indicative of an approximate location of the apparatus.
4. The apparatus of claim 1 , wherein the geographical position is indicative of an approximate destination position.
5. The apparatus of claim 1 , wherein the at least one memory further stores machine executable instructions configured to, with the at least one processor, cause the apparatus to:
use a Global Position Satellite (GPS) system to determine the geographical position.
6. The apparatus of claim 1 , wherein the at least one memory further stores machine executable instructions configured to, with the at least one processor, cause the apparatus to:
acquire the geographical position by utilizing a time difference of arrival (TDOA) technique.
7. The apparatus of claim 1 , wherein the specified radius is obtained through a user interface.
8. The apparatus of claim 1 , wherein the inserting includes:
selecting the datagram prior to inserting the information about the geographical position and specified radius into the message header of the datagram.
9. The apparatus of claim 1 , wherein the datagram complies with an Internet Protocol version 6 (IPv6) specification.
10. The apparatus of claim 9 , wherein the extension header comprises a destination option header.
11. The apparatus of claim 9 , wherein the extension header comprises a hop-by-hop header.
12. The apparatus of claim 1 , wherein the apparatus is selected from the group consisting of a wireless telephone, a workstation, a personal computer (PC), and a stationary communications device.
13. The apparatus of claim 1 , wherein the geographical position comprises an approximate longitude and an approximate latitude of a position of the apparatus.
14. The apparatus of claim 1 , wherein the at least one memory further stores machine executable instructions configured to, with the at least one processor, cause the apparatus to:
select the specified radius from a plurality of predetermined values.
15. One or more non-transitory computer-readable media storing computer-executable instructions configured to, when executed, cause an apparatus to at least:
insert information about a geographical position and a specified radius into a message header of a datagram that requests transmission of a geographical-based service and includes data of the geographical-based service, wherein the geographical position and the specified radius together specify a serving area for the transmission of the geographical-based service wherein the datagram complies with an Internet Protocol (IP) specification and the message header is an extension header of the datagram; and
send the datagram.
16. The one or more non-transitory computer-readable media of claim 15 further storing computer-executable instructions configured to, when executed, cause the apparatus to:
insert an indicator into the datagram, wherein the indicator restricts processing of the geographical position by another apparatus.
17. The one or more non-transitory computer-readable media of claim 15 further storing computer-executable instructions configured to, when executed, cause the apparatus to:
select the specified radius from a plurality of predetermined values.
18. A method comprising:
inserting, by an apparatus, information about a geographical position and a specified radius into a message header of a datagram that requests transmission of a geographical-based service and includes data of the geographical-based service, wherein the geographical position and the specified radius together specify a serving area for the transmission of the geographical-based service, wherein the datagram complies with an Internet Protocol (IP) specification and the message header is an extension header of the datagram; and
sending, by the apparatus, the datagram.
19. The method of claim 18 , further comprising:
inserting, by the apparatus, an indicator into the datagram, wherein the indicator restricts processing of the geographical position by another apparatus.
20. The method of claim 18 , further comprising:
selecting the specified radius from a plurality of predetermined values.