Efficient means of broadcast and relaying information between wireless terminals

• US 9,252,896 B2
• Filed: 12/05/2013
• Issued: 02/02/2016
• Est. Priority Date: 12/10/2012
• Status: Expired due to Fees

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Edge, Stephen William
• Primary Examiner(s): Ferguson, Keith
• Application Number:
  US14/098,493
• Publication Number:
  US 20140162545A1
• Time in Patent Office: 789 Days
• Field of Search: 455 301- 306, 455/7, 455/9, 455/11.1, 455/422.1, 455/403, 455/445, 455/500, 455/517, 455/426.1, 455/426.2, 455/509, 455/515, 455/507, 455/550.1, 4554141-4144, 370/310, 370/315, 370/313, 370/328, 370/329, 370/343
• US Class Current: 1/1
• CPC Class Codes: G01S 5/10 Position of receiver fixed by co-ordinating a plurality of position lines defined by path-difference measurements , e.g. omega or decca systemsG01S5/12 takes precedence ; beacons and receivers cooperating therewith G01S1/306, G01S1/308
• CPC Class Codes: G01S 5/14 Determining absolute distances from a plurality of spaced points of known location
• CPC Class Codes: H04H 20/08 among terminal devices
• CPC Class Codes: H04L 12/1845 broadcast or multicast in a specific location, e.g. geocast protocols for adapting network applications to user terminal location H04L67/52; services specially adapted for wireless communication networks making use of the location of users or terminals H04W4/02
• CPC Class Codes: H04L 12/1868 Measures taken after transmission, e.g. acknowledgments
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 4/02 Services making use of location information
• CPC Class Codes: H04W 4/023 using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
• CPC Class Codes: H04W 4/029 Location-based management or tracking services
• CPC Class Codes: H04W 4/06 Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
• CPC Class Codes: H04W 40/246 Connectivity information discovery
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals
• CPC Class Codes: H04W 84/10 Small scale networks; Flat hierarchical networks
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks
• CPC Class Codes: H04W 88/04 adapted for relaying to or from another terminal or user

Abstract

A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may receive broadcast information related to a second UE from a third UE, relay the broadcast information and identifier information to a set of UEs, determine whether each UE in the set of UEs has received the broadcast information based on whether the identifier information is received from each UE in the set of UEs, and refrain from relaying the broadcast information upon determining that each UE in the set of UEs has received the broadcast information. In another aspect, the apparatus may receive broadcast information related to a second UE and a tag associated with the broadcast information from a third UE, relay the tag without the broadcast information to a set of UEs, receive a request for broadcast information from a third UE in the set of UEs, and relay the broadcast information to the third UE. In an aspect, the first, second and third UEs may be the same UE. In another aspect, the second and third UEs but not the first UE may be the same UE.

Claims

1. A method of wireless communication of a first user equipment (UE), comprising:

receiving broadcast information related to a second UE and a tag associated with the broadcast information from a third UE;

relaying the tag without the broadcast information to a set of UEs;

receiving a request for broadcast information from a fourth UE in the set of UEs; and

relaying the broadcast information to the fourth UE.

2. The method of claim 1, wherein the tag comprises at least one of an identity for the second UE, an information type, an information identifier, a version number and a timestamp.

3. The method of claim 1, further comprising relaying the tag with the broadcast information prior to relaying the tag without the broadcast information.

4. The method of claim 1, wherein the tag is relayed with the broadcast information to the fourth UE.

5. The method of claim 1, wherein the request for broadcast information comprises the tag.

6. The method of claim 5, wherein the request includes an identifier associated with a UE, and the method further comprises:

determining whether the identifier is associated with the first UE;

determining to relay the broadcast information to the fourth UE when the identifier is determined to be associated with the first UE; and

determining to refrain from relaying the broadcast information to the fourth UE when the identifier is determined to be unassociated with the first UE.

7. The method of claim 1, wherein the request for broadcast information does not include the tag or the broadcast information associated with the tag.

8. The method of claim 1, further comprising:

receiving a subsequent version of the broadcast information and a second tag associated with the subsequent version of the broadcast information;

relaying the subsequent version of the broadcast information with the second tag; and

relaying the second tag without the subsequent version of the broadcast information after relaying the subsequent version of the broadcast information with the second tag.

9. The method of claim 1, wherein the first, second and third UEs are the same UE and wherein the receiving occurs internally within the first UE.

10. The method of claim 1, wherein the second and third UEs are the same UE and are different to the first UE.

11. A first user equipment (UE) for wireless communication, comprising:

means for receiving broadcast information related to a second UE and a tag associated with the broadcast information from a third UE;

means for relaying the tag without the broadcast information to a set of UEs;

means for receiving a request for broadcast information from a fourth UE in the set of UEs; and

means for relaying the broadcast information to the fourth UE.

12. The first UE of claim 11, wherein the tag comprises at least one of an identity for the second UE, an information type, an information identifier, a version number and a timestamp.

13. The first UE of claim 11, further comprising means for relaying the tag with the broadcast information prior to relaying the tag without the broadcast information.

14. The first UE of claim 11, wherein the tag is relayed with the broadcast information to the fourth UE.

15. The first UE of claim 11, wherein the request for broadcast information comprises the tag.

16. The first UE of claim 15, wherein the request includes an identifier associated with a UE, and the first UE further comprising:

means for determining whether the identifier is associated with the first UE;

means for determining to relay the broadcast information to the fourth UE when the identifier is determined to be associated with the first UE; and

means for determining to refrain from relaying the broadcast information to the fourth UE when the identifier is determined to be unassociated with the first UE.

17. The first UE of claim 11, wherein the request for broadcast information does not include the tag or the broadcast information associated with the tag.

18. The first UE of claim 11, further comprising:

means for receiving a subsequent version of the broadcast information and a second tag associated with the subsequent version of the broadcast information;

means for relaying the subsequent version of the broadcast information with the second tag; and

means for relaying the second tag without the subsequent version of the broadcast information after relaying the subsequent version of the broadcast information with the second tag.

19. The first UE of claim 11, wherein the first, second and third UEs are the same UE and wherein the receiving occurs internally within the first UE.

20. The first UE of claim 11, wherein the second and third UEs are the same UE and are different to the first UE.

21. A first user equipment (UE) for wireless communication, comprising:

a memory; and

at least one processor coupled to the memory and configured to;

receive broadcast information related to a second UE and a tag associated with the broadcast information from a third UE;

relay the tag without the broadcast information to a set of UEs;

receive a request for broadcast information from a fourth UE in the set of UEs; and

relay the broadcast information to the fourth UE.

22. The first UE of claim 21, wherein the tag comprises at least one of an identity for the second UE, an information type, an information identifier, a version number and a timestamp.

23. The first UE of claim 21, the at least one processor further configured to relay the tag with the broadcast information prior to relaying the tag without the broadcast information.

24. The first UE of claim 21, wherein the tag is relayed with the broadcast information to the fourth UE.

25. The first UE of claim 21, wherein the request for broadcast information comprises the tag.

26. The first UE of claim 25, wherein the request includes an identifier associated with a UE, the at least one processor further configured to:

determine whether the identifier is associated with the first UE;

determine to relay the broadcast information to the fourth UE when the identifier is determined to be associated with the first UE; and

determine to refrain from relaying the broadcast information to the fourth UE when the identifier is determined to be unassociated with the first UE.

27. The first UE of claim 21, wherein the request for broadcast information does not include the tag or the broadcast information associated with the tag.

28. The first UE of claim 21, the at least one processor further configured to:

receive a subsequent version of the broadcast information and a second tag associated with the subsequent version of the broadcast information;

relay the subsequent version of the broadcast information with the second tag; and

relay the second tag without the subsequent version of the broadcast information after relaying the subsequent version of the broadcast information with the second tag.

29. A non-transitory computer-readable medium storing computer executable instructions, comprising code for:

receiving broadcast information related to a second UE and a tag associated with the broadcast information from a third UE;

relaying the tag without the broadcast information to a set of UEs;

receiving a request for broadcast information from a fourth UE in the set of UEs; and

relaying the broadcast information to the fourth UE.