Information selection in a wireless communication system

• US 9,155,001 B2
• Filed: 08/30/2013
• Issued: 10/06/2015
• Est. Priority Date: 06/22/2010
• Status: Active Grant

• Current Assignee: Malikie Innovations Limited (Key Patent Innovations Limited)
• Original Assignee: Blackberry Limited
• Inventors: Gage, William Anthony
• Primary Examiner(s): Thompson, Jr., Otis L
• Application Number:
  US14/015,288
• Publication Number:
  US 20140023018A1
• Time in Patent Office: 767 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: H04L 67/568 Storing data temporarily at an intermediate stage, e.g. caching
• CPC Class Codes: H04W 36/0011 for data sessions of end-to-end connection
• CPC Class Codes: H04W 40/24 Connectivity information management, e.g. connectivity discovery or connectivity update

Abstract

Methods, devices, and systems for information selection in a wireless communication system are provided. In one embodiment, a method of information selection in a wireless communication system comprises receiving a selection request signal by a propagator node, wherein the selection request signal identifies information requested by a selector node; determining all or a portion of the selection request signal matches all or a portion of an information tag stored in an information cache of the propagator node, wherein the information tag is associated with an information datagram; and forwarding the information datagram from the propagator node to the selector node, wherein the information datagram contains all or a portion of the information.

Claims

1. A method of information selection in a wireless communication system performed on a propagator node, comprising:

receiving an information datagram from one of multiple information distribution gateway (IDG) nodes in response to a first selection request signal, wherein said IDG node received said information datagram from an information repository;

storing said information datagram in an information cache comprising multiple information datagrams, wherein each of said information datagrams is associated with one of said IDG nodes;

receiving a second selection request signal via an access point, wherein said selection request signal identifies information requested by a selector node;

determining whether all or a portion of said second selection request signal matches all or a portion of one of said information datagrams stored in said information cache;

forwarding one of said information datagrams to said selector node if a full or partial match is determined between said information datagram and said requested information; and

if said full or partial match is not determined, determining whether all or a portion of said second selection request signal matches one of multiple information tags stored in at least one routing table.

2. The method of claim 1, wherein said receiving a second selection request signal includes receiving said second selection request signal over a neighbor interface module of said propagator node, wherein said neighbor interface module is directly or indirectly associated with said selector node, and wherein said forwarding said information datagram to said selector node includes forwarding said information datagram over said neighbor interface module.

3. The method of claim 1, further comprising discarding, removing, or overwriting said second selection request signal upon determining that all or a portion of said second selection request signal partially or fully matches one of said information tags.

4. The method of claim 3, wherein said partially or fully matched information tag includes a selector tag stored in a selection routing table, and wherein said selection tag identifies information requested by another selector node.

5. The method of claim 1, further comprising storing said second selection request signal upon determining that all or a portion of said second selection request signal does not match one of said information tags, wherein said second selection request signal is a persistent selection request signal that would otherwise be discarded upon determining that all or a portion of said second selection request signal does not match one of said information tags.

6. The method of claim 1, wherein said second selection request signal includes an unqualified information object identifier configured to be used to locate the requested information in a plurality of information repositories.

7. The method of claim 1, wherein said second selection request signal includes a qualified information object identifier configured to be used to locate the requested information in a particular information repository.

8. The method of claim 1, wherein said second selection request signal, said information datagram, or both includes a session initiation protocol (“

SIP”

) signaling message.

9. The method of claim 1, wherein said second selection request signal, said information datagram, or both includes a hypertext transfer protocol (“

HTTP”

) signaling messages.

10. The method of claim 1, wherein said second selection request signal is cryptographically signed.

11. The method of claim 1, wherein said information tags comprise distributor tags stored in a distributor routing table, each of said distributor tags advertising information available from respective distributor nodes.

12. The method of claim 11, further comprising forwarding said second selection request to one of said distributor nodes upon determining that that all or a portion of said second selection request signal matches all or a portion of a respective distributor tag stored in said distributor routing table.

13. A method of information selection in a wireless communication system, comprising:

receiving an information datagram by a propagator node from one of multiple information distribution gateway (IDG) nodes coupled to the Internet, wherein said information datagram includes an information tag;

storing said information datagram in an information cache comprising multiple information datagrams, wherein each of said information datagrams is associated with one of said IDG nodes;

determining all or a portion of said information tag matches all or a portion of a selection tag stored in a selection routing table of said propagator node, wherein said selection tag is associated with a selector node;

sending a selection request signal to said IDG node in response to said determination, wherein said selection request signal is generated and sent by said propagator node to promote obtaining information for said selector node; and

forwarding said information datagram from said propagator node to said selector node via an access node.

14. The method of claim 13, further comprising:

determining all or a portion of said information tag matches all or a portion of one or more selection tags stored in said selection routing table of said propagator node, wherein at least one of said selection tags is associated with another selector node; and

forwarding said information datagram from said propagator node to one or more of said matched selector nodes,

wherein said information tag advertises information available from said IDG node, and wherein each of said selection tags identify information requested by each respective selector node.

15. The method of claim 13, further comprising:

determining said selection tag stored in said selection routing table of said propagator node is not a persistent selection request signal; and

discarding, removing, or overwriting said selection tag from said selection routing table responsive to determining said selection is not a persistent selection request signal.

16. A device acting as a propagator node for information selection in a wireless communication system, comprising:

a first neighbor interface module configured to receive an information datagram from one of multiple information distribution gateway (IDG) nodes in response to a first selection request signal, wherein said IDG node received said information datagram from an information repository;

a second neighbor interface module configured to receive a second selection request signal from an access point, wherein said second selection request signal identifies information requested by a selector node;

a memory configured to store said information datagram in an information cache comprising multiple information datagrams, wherein each of said information datagrams is associated with one of said IDG nodes; and

a controller coupled to said second neighbor interface module and coupled to the memory, wherein said controller is configured to determine whether all or a portion of said second selection request signal matches all or a portion of one of said information datagrams stored in said information cache, and further configured such that;

if a full or partial match is determined between said second selection request signal and one of said information datagrams, the processor forwards said information datagram from said propagator node to said selector node; and

if said full or partial match is not determined, the processor determines whether all or a portion of said second selection request signal matches one of multiple information tags stored in at least one routing table.

17. The device of claim 16, wherein said first neighbor interface module is directly or indirectly associated with said IDG node, and wherein said second neighbor interface module is directly or indirectly associated with said selector node.

18. The device of claim 16, wherein said controller forwards one of said information datagrams to said selector node responsive to determining said full or partial match, wherein said forwarded information datagram is different from said information datagram received in response to said first selection request signal.

19. The device of claim 16, wherein said information tags comprises distributor tags stored in a distributor routing table, each of said distributor tags advertising information available from respective distributor nodes.

20. The device of claim 19, wherein said controller forwards said second selection request to one of said distributor nodes upon determining that that all or a portion of said second selection request signal matches all or a portion of a respective distributor tag stored in said distributor routing table.