Method and apparatus for supporting proximity discovery procedures

Patent metadata

Field	Value
Publication number	US-12341618-B2
Application number	US-202418618664-A
Country	US
Kind code	B2
Filing date	Mar 27, 2024
Priority date	Apr 27, 2012
Publication date	Jun 24, 2025
Grant date	Jun 24, 2025

Abstract

A method and apparatus are described for supporting a two-stage device-to-device (D2D) discovery using a D2D interworking function (IWF). A D2D IWF component may be configured to perform mapping between an application running on an application server and a third generation partnership project (3GPP) network, and provide a set of application programming interfaces (APIs) to allow discovery to be provided as a service to D2D applications. An application identifier may be mapped to a 3GPP identifier. Further, a method and apparatus are described for performing client-server discovery. A first wireless transmit/receive unit (WTRU) may be configured for a listen-only operation, and a second WTRU may be configured to transmit beacons. The first and second WTRUs may perform a radio access network (RAN) discovery procedure at an access stratum (AS) layer. A method and apparatus for performing charging for D2D service using a D2D IWF are also described.

First claim

What is claimed:

1. A base station comprising:
a transceiver; and
a processor, wherein:
the transceiver and the processor are configured to:
receive, from a wireless transmit/receive unit (WTRU), a registration request message including device-to-device (D2D) capability information of the WTRU, wherein the D2D capability information indicates at least one radio access network technology (RAT) supported for D2D communications; and
transmit, to the WTRU, information indicative of D2D policies, wherein the D2D policies are related to the D2D capability information of the WTRU.

2. The base station of claim 1 , wherein the information indicative of D2D policies originates from a network node providing a policy function.

3. The base station of claim 1 , wherein the transceiver and the processor are further configured to:
forward, to a network node, the D2D capability information of the WTRU, wherein the information indicative of D2D policies is received by the base station in response to the forwarded D2D capability information.

4. The base station of claim 1 , wherein the registration request message includes indications of applications that use proximity services.

5. The base station of claim 1 , wherein the registration request message includes an identifier of the WTRU.

6. The base station of claim 1 , wherein the transceiver and the processor are further configured to:
transmit, to the WTRU, a registration confirmation.

7. The base station of claim 1 , wherein the transceiver and the processor are further configured to:
transmit, to the WTRU, WTRU discovery information in response to the received registration request message.

8. The base station of claim 1 , wherein the transceiver and the processor are further configured to:
transmit, to the WTRU, information indicative of a list of proximity services in response to the received registration request message.

9. The base station of claim 1 , wherein the D2D capability information further indicates at least one of: direct path D2D radio capabilities, D2D service capabilities via a non-access stratum (NAS), support for D2D services, support for D2D relay mode, or support for D2D broadcast mode.

10. The base station of claim 1 , wherein the transceiver and the processor are further configured to:
receive, from the WTRU, D2D user preferences associated with the WTRU.

11. A method performed by a base station, the method comprising:
receiving, from a wireless transmit/receive unit (WTRU), a registration request message including device-to-device (D2D) capability information of the WTRU, wherein the D2D capability information indicates at least one radio access network technology (RAT) supported for D2D communications; and
transmitting, to the WTRU, information indicative of D2D policies, wherein the D2D policies are related to the D2D capability information of the WTRU.

12. The method of claim 11 , wherein the information indicative of D2D policies originates from a network node providing a policy function.

13. The method of claim 11 , further comprising:
forwarding, to a network node, the D2D capability information of the WTRU, wherein the information indicative of D2D policies is received by the base station in response to the forwarded D2D capability information.

14. The method of claim 11 , wherein the registration request message includes indications of applications that use proximity services.

15. The method of claim 11 , wherein the registration request message includes an identifier of the WTRU.

16. The method of claim 11 , further comprising:
transmitting, to the WTRU, a registration confirmation.

17. The method of claim 11 , further comprising:
transmitting, to the WTRU, WTRU discovery information in response to the received registration request message.

18. The method of claim 11 , further comprising:
transmitting, to the WTRU, information indicative of a list of proximity services in response to the received registration request message.

19. The method of claim 11 , wherein the D2D capability information further indicates at least one of: direct path D2D radio capabilities, D2D service capabilities via a non-access stratum (NAS), support for D2D services, support for D2D relay mode, or support for D2D broadcast mode.

20. The method of claim 11 , further comprising:
receiving, from the WTRU, D2D user preferences associated with the WTRU.

Assignees

• Interdigital Patent Holdings Inc

Inventors

• Pragada Ravikumar V
• Ahmad Saad
• Raghothaman Balaji
• Kaur Samian J
• Adjakple Pascal M
• Olvera-Hernandez Ulises
• Deng Zhuorong
• Vanganuru Kiran K
• Sternberg Gregory S
• Wang Guanzhou
• Starsinic Michael F
• Reznik Alexander
• Zuniga Juan Carlos
• Zeira Eldad M

Classifications

• H04W8/18

  Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data · CPC title

• H04W8/22

  Processing or transfer of terminal data, e.g. status or physical capabilities · CPC title

• H04L67/1061

  using node-based peer discovery mechanisms (static access to replicated servers H04L67/1006; service discovery H04L67/51) · CPC title

• H04L67/104

  Peer-to-peer [P2P] networks · CPC title

• H04W84/042

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