Supplemental cross-technology discovery

Patent metadata

Field	Value
Publication number	US-9319862-B2
Application number	US-201414199884-A
Country	US
Kind code	B2
Filing date	Mar 6, 2014
Priority date	Mar 6, 2014
Publication date	Apr 19, 2016
Grant date	Apr 19, 2016

Abstract

A method and an apparatus for wireless communication are provided. In one aspect, the apparatus may be a user equipment (UE), base station, or access point. The apparatus broadcasts peer discovery information in a high-level expression data structure that supports multiple discovery technologies from a variety of wireless networks. By using the high-level expression data, the apparatus may use a single, unified discovery application programming interface for signaling the presence of any supplemental cross-technology discovery information as such information became available. In another aspect, the apparatus may be a UE. The apparatus receives the broadcasted high-level expression data in a peer discovery signal and processes the data.

First claim

What is claimed is:

1. A method of wireless communication, comprising:
transmitting a first set of information in a first peer discovery signal with a first periodicity and a first peer discovery range, the first set of information including information for a second set of information; and
transmitting the second set of information in a second peer discovery signal with a second periodicity and a second peer discovery range, the second periodicity being different from the first periodicity, the second peer discovery range being less than the first peer discovery range, the second set of information being associated with the first set of information.

2. The method of claim 1 , wherein the first set of information includes information indicating that the second set of information will be transmitted with the second periodicity and the second peer discovery range.

3. The method of claim 1 , further comprising generating an identifier based on the first set of information, wherein the identifier is transmitted with the second set of information.

4. The method of claim 3 , wherein the identifier is a hash value generated based on a hash function applied to the first set of information.

5. The method of claim 4 , wherein the hash function varies over time.

6. The method of claim 1 , wherein the first set of information is transmitted through a wireless wide area network (WWAN) and the second set of information is transmitted through one of a wireless local area network (WLAN) or a personal area network (PAN).

7. The method of claim 1 , further comprising transmitting a third set of information in a third peer discovery signal with a third periodicity and a third peer discovery range, the third periodicity being different from the second periodicity, the third peer discovery range being less than the second peer discovery range, the third set of information being associated with the first set of information.

8. The method of claim 7 , wherein the first set of information includes information indicating that the second set of information will be transmitted with the second periodicity and the second peer discovery range and the third set of information will be transmitted with the third periodicity and the third peer discovery range.

9. The method of claim 7 , further comprising:
generating a first identifier based on the first set of information, the first identifier being transmitted with the second set of information; and
generating a second identifier based on one of the first set of information or the second set of information, the second identifier being transmitted with the third set of information.

10. The method of claim 9 , wherein the first identifier is a hash value generated based on a first hash function applied to the first set of information, and the second identifier is a hash value generated based on a second hash function applied to said one of the first set of information or the second set of information.

11. The method of claim 7 , wherein the first set of information is transmitted through a wireless wide area network (WWAN), the second set of information is transmitted through a wireless local area network (WLAN), and the third set of information is transmitted through a personal area network (PAN).

12. A method of wireless communication of a user equipment (UE), comprising:
receiving a first set of information in a first peer discovery signal with a first periodicity and a first peer discovery range, the first set of information including information for a second set of information;
receiving the second set of information in a second peer discovery signal with a second periodicity and a second peer discovery range, the second periodicity being different from the first periodicity, the second peer discovery range being less than the first peer discovery range; and
determining that the second set of information is associated with the first set of information.

13. The method of claim 12 , wherein the first set of information includes information indicating that the second set of information will be transmitted with the second periodicity and the second peer discovery range, and the second set of information is received based on the information indicating that the second set of information will be transmitted with the second periodicity and the second peer discovery range.

14. The method of claim 12 , further comprising receiving an identifier with the second set of information, wherein the UE determines that the second set of information is associated with the first set of information based on the received identifier.

15. The method of claim 14 , further comprising:
applying a hash function to the first set of information to generate a hash value; and
comparing the hash value to the identifier,
wherein the UE determines that the second set of information is associated with the first set of information when the hash value and the identifier are the same.

16. The method of claim 15 , wherein the hash function varies over time.

17. The method of claim 12 , wherein the first set of information is received through a wireless wide area network (WWAN) and the second set of information is received through one of a wireless local area network (WLAN) or a personal area network (PAN).

18. The method of claim 12 , further comprising:
receiving a third set of information in a third peer discovery signal with a third periodicity and a third peer discovery range, the third periodicity being different from the second periodicity, the third peer discovery range being less than the second peer discovery range; and
determining that the third set of information is associated with at least one of the first set of information or the second set of information.

19. The method of claim 18 , wherein the first set of information includes information indicating that the second set of information will be transmitted with the second periodicity and the second peer discovery range and the third set of information will be transmitted with the third periodicity and the third peer discovery range, the second set of information is received based on the information indicating that the second set of information will be transmitted with the second periodicity and the second peer discovery range, and the third set of information is received based on the information indicating that the third set of information will be transmitted with the third periodicity and the third peer discovery range.

20. The method of claim 18 , further comprising:
receiving a first identifier with the second set of information, wherein the UE determines that the second set of information is associated with the first set of information based on the received first identifier; and
receiving a second identifier with the third set of information, wherein the UE determines that the third set of information is associated with at least one of the first set of information or the second set of information based on the received second identifier.

21. The method of claim 20 , further comprising:
applying a first hash function to the first set of information to generate a first hash value;
comparing the first hash value to the first identifier, wherein the UE determines that the second set of information is associated with the first set of information when the first hash value and the first identifier are the same;
applying a second hash function to said at least one of the first set of information or the second set of information to generate a seco

Assignees

• Qualcomm Inc

Inventors

• Kelleman James
• Sienicki James

Classifications

• H04W84/12

  WLAN [Wireless Local Area Networks] · CPC title

• H04W88/06

  adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals · CPC title

• H04W48/12 Primary

  using downlink control channel · CPC title

• H04W84/042

  Public Land Mobile systems, e.g. cellular systems · CPC title

• H04W48/18

  Selecting a network or a communication service · CPC title