Epc enhancements for proximity services

Patent metadata

Field	Value
Publication number	US-2016374104-A1
Application number	US-201414902079-A
Country	US
Kind code	A1
Filing date	Jul 3, 2014
Priority date	Jul 3, 2013
Publication date	Dec 22, 2016
Grant date	—

Abstract

Systems, methods, and instrumentalities are disclosed to describe reporting and/or reacting to a mobility event. A wireless transmit/receive unit (WTRU) may comprise a processor configured, at least in part, to establish a proximity service (ProSe) session with a second WTRU, detect the occurrence of a mobility event in a cellular network while the ProSe session is ongoing, determine a type of action to be performed with respect to the ProSe session based on one or more of the type of mobility event and type of ProSe session, and transmit a notification to a node in the cellular network, wherein the notification includes an indication of an action to be performed on the ProSe session. The node may be one of an evolved Node B (eNB), proximity server, or mobility management entity (MME). The node may be the second WTRU.

First claim

1 - 38 . (canceled)

39 . A method implemented by a first wireless transmit receive unit (WTRU) for communicating directly with one or more other WTRUs, the method comprising:
the first WTRU executing at least two applications that utilize direct ProSe communications for communicating with the one or more other WTRUs, the at least two applications comprising a first application and a second application; the WTRU determining a first packet to be transmitted for the first application and a second packet to be transmitted for the second application; the WTRU assigning the first packet a first priority based on the first application and the second packet a second priority based on the second application, the first priority being higher than the second priority; the WTRU determining the first packet and the second packet are contending for the same radio resources; the WTRU prioritizing transmission of the first packet over the second packet based on the first packet having a higher priority than the first packet; and the WTRU directly transmitting the first packet to the one or more other WTRUs and suppressing transmission of the second packet until a subsequent direct ProSe transmission opportunity.

40 . The method as in claim 39 , wherein a first code is assigned to the first packet based on the first packet being associated with the first priority and a second code is assigned to the second packet based on the second packet being associated with the second priority.

41 . The method as in claim 39 , wherein the WTRU directly transmits the second packet to the one or more other WTRUs after completing transmission of the first packet based on the first packet being associated with a higher priority than the first packet.

42 . The method as in claim 39 , wherein the first WTRU acts as a relay for the one or more other WTRUs to communicated with a cellular network.

43 . The method as in claim 39 , wherein priority levels for transmission of direct ProSe communication packets are assigned at an application level.

44 . The method as in claim 43 , wherein application level based priority levels can be changed by the first WTRU.

45 . The method as in claim 39 , wherein the first packet is transmitted to the one or more other WTRUs in accordance with an uplink grant received from an evolved Node-B (eNB).

46 . A first wireless transmit receive unit (WTRU) comprising a processor configured to:
execute at least two applications that utilize direct ProSe communications for communicating with one or more other WTRUs, the at least two applications comprising a first application and a second application; determine a first packet to be transmitted for the first application and a second packet to be transmitted for the second application; assign the first packet a first priority based on the first application and the second packet a second priority based on the second application, the first priority being higher than the second priority; determine the first packet and the second packet are contending for the same radio resources; prioritize transmission of the first packet over the second packet based on the first packet having a higher priority than the first packet; and directly transmit the first packet to the one or more other WTRUs and suppressing transmission of the second packet until a subsequent direct ProSe transmission opportunity.

47 . The WTRU as in claim 46 , wherein a first code is assigned to the first packet based on the first packet being associated with the first priority and a second code is assigned to the second packet based on the second packet being associated with the second priority.

48 . The WTRU as in claim 46 , wherein the processor is configured to directly transmit the second packet to the one or more other WTRUs after completing transmission of the first packet based on the first packet being associated with a higher priority than the first packet.

49 . The WTRU as in claim 46 , wherein the first WTRU is configured to act as a relay for the one or more other WTRUs to communicated with a cellular network.

50 . The WTRU as in claim 46 , wherein priority levels for transmission of direct ProSe communication packets are assigned at an application level.

51 . The WTRU as in claim 50 , wherein application level based priority levels can be changed by the first WTRU.

52 . The WTRU as in claim 46 , wherein the first packet is transmitted to the one or more other WTRUs in accordance with an uplink grant received from an evolved Node-B (eNB).

Assignees

• Interdigital Patent Holdings Inc

Inventors

• Watfa Mahmoud
• Wang Guanzhou
• Ahmad Saad
• Sun Li-Hsiang

Classifications

• H04W12/04

  Key management, e.g. using generic bootstrapping architecture [GBA] · CPC title

• H04W72/56 Primary

  based on priority criteria · CPC title

• H04W4/80

  Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication · CPC title

• H04W88/06

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

• H04W76/23 Primary

  Manipulation of direct-mode connections · CPC title