Notification control in a communication system

Abstract

A method for notification control in a communication system performed by a core network is presented. The method includes establishing a PDU session, and enabling a RAN to notify a UE of the unfulfillment or re-fulfillment of QoS, for a QoS Flow in the PDU session.

1 . A method for notification control in a communication system, performed by a core network, comprising:
 establishing a protocol data unit, PDU, session; and   enabling a radio access network, RAN, to notify a user equipment, UE, of one of unfulfillment and re-fulfillment of quality of service, QoS, for a QoS Flow in the PDU session.   
     
     
         2 .- 25 . (canceled) 
     
     
         26 . The method of  claim 1 , further comprising:
 receiving information indicating whether the UE supports an AN-signaling based notification;   
     
     
         27 . The method of  claim 26 , wherein one of:
 the information further includes the information indicating whether the UE supports the AN-signaling based notification for certain applications in the UE;   the AN-signaling based notification is a radio resource control, RRC-based notification; and   the AN-signaling based notification is a media access control, MAC-based notification.   
     
     
         28 . The method of  claim 1 , further comprising:
 receiving a request for resource allocation to a QoS Flow in the PDU session for the UE, the request including a notification control indication indicating whether notification to the UE is expected of the one of the unfulfillment and re-fulfillment of QoS, for a QoS Flow in the PDU session.   
     
     
         29 . The method of  claim 28 , wherein the notification control indication further indicates whether the AN-signaling based notification to certain applications of the UE is expected. 
     
     
         30 . The method of  claim 1 , wherein one of:
 only enabling the RAN to notify a UE of the one of the unfulfillment and re-fulfillment of QoS for the QoS Flow in a PDU session when the UE supports the AN-signaling based notification;   only enabling the RAN to notify a UE of the one of the unfulfillment and re-fulfillment of QoS for the QoS Flow in a PDU session when the AN-signaling based notification is expected; and   only enabling the RAN to notify a UE of the one of the unfulfillment and re-fulfillment of QoS for the QoS Flow in a PDU session when the UE supports the AN-signaling based notification and the AN-signaling based notification is expected.   
     
     
         31 . The method of  claim 1 , further comprising one of:
 enabling the RAN, to notify the UE of the one of the unfulfillment and re-fulfillment of QoS for the QoS Flow in the PDU session when the QoS Flow is addressed towards certain applications of the UE; and   enabling the RAN, to notify the core network of the one of the unfulfillment and re-fulfillment of QoS for the QoS Flow in the PDU session.   
     
     
         32 . A method for notification control in a communication system, performed by a radio access network, RAN, the method comprising:
 receiving a notification enable indication from a core network that indicating enabling an access network, AN-signaling based notification, to notify a user equipment, UE, of one of unfulfillment and re-fulfillment of quality of service, QoS, for a QoS flow in a protocol data unit, PDU, session; and   notifying the UE of the unfulfillment or re-fulfillment of QoS using the AN-signaling based notification.   
     
     
         33 . The method of  claim 32 , wherein one of:
 the notification enable indication further indicates enabling a AN-signaling based notification, to notify the UE of the one of the unfulfillment and re-fulfillment of QoS for the QoS Flow in the PDU session;   the AN-signaling based notification is a radio resource control, RRC-based notification; and   the AN-signaling based notification is a media access control, MAC-based notification.   
     
     
         34 . The method of  claim 32 , further comprising:
 notifying the core network of the one of the unfulfillment and re-fulfillment in QoS for the QoS Flow in the PDU session.   
     
     
         35 . A user equipment, UE, for notification control in a communication system, comprising:
 a processing circuitry; and   a storage medium storing instructions that, when executed by the processing circuitry, cause the UE to:
 establish a protocol data unit, PDU, session; and 
 receive a notification that notifying the UE of one of unfulfillment and re-fulfillment of quality of service, QoS, for a QoS Flow in a protocol data unit, PDU session in the AN-signaling based notification. 
   
     
     
         36 . The UE according to  claim 35 , wherein when executed by the processing circuitry, cause the UE to:
 further send information indicating whether the UE supports an access network, AN-signaling based notification.   
     
     
         37 . The UE according to  claim 36 , wherein the information further includes the information indicating whether the UE supports the AN-signaling based notification for certain applications in the UE. 
     
     
         38 . The UE according to  claim 35 , wherein the instructions, when executed by the processing circuitry, further cause the UE to:
 further notify the one of the unfulfillment and re-fulfillment of QoS for the QoS Flow in the PDU session addressed towards certain applications in the UE, using the related QoS Flow, when the UE supports the AN-signaling based notification.