Method and apparatus for registration type addition for service negotiation

Patent metadata

Field	Value
Publication number	US-2018317157-A1
Application number	US-201815965166-A
Country	US
Kind code	A1
Filing date	Apr 27, 2018
Priority date	Apr 27, 2017
Publication date	Nov 1, 2018
Grant date	—

Abstract

An apparatus and method are provided for steering a protocol data unit (PDU) session associated with traffic routed to a selected user plane function (UPF). The method includes receiving, from an application function (AF), a first message including information identifying a UPF toward which traffic routing is applied and information on a spatial condition of a terminal location; receiving, from a session management function (SMF) device, a second message including information on a change of the terminal location in an area of interest determined based on the spatial condition; selecting a UPF based on the information identifying the UPF and the information on the change of the terminal location; and transmitting, to the SMF device, a third message including information on the selected UPF for steering a PDU session associated with traffic routed to the selected UPF.

First claim

What is claimed is:

1 . A communication method of a policy control function (PCF), the method comprising:
receiving, from an application function (AF), a first message including information on identifying a user plane function (UPF) toward which traffic routing is applied and information on a spatial condition of a terminal location; receiving, from a session management function (SMF), a second message including information on a change of the terminal location in an area of interest determined based on the spatial condition; selecting a UPF based on the information on identifying the UPF and the information on the change of the terminal location; and transmitting, to the SMF, a third message including information on the selected UPF for steering a protocol data unit (PDU) session associated with the traffic to the selected UPF.

2 . The method of claim 1 , wherein the receiving of the second message comprises:
transmitting, to the SMF, a fourth message to subscribe to the SMF to receive a notification about the change of the terminal location in the area of interest; and receiving, from the SMF, the second message including information indicating that the terminal entered the area of interest or the terminal left the area of interest.

3 . The method of claim 1 , further comprising:
transmitting, to the AF, a fifth message, in response to the first message; and storing the information on identification of the UPF toward which the traffic routing is applied and the information on the spatial condition of the terminal location.

4 . The method of claim 1 , wherein the first message further comprises at least one of an identification of the terminal, a dada network name, network slice information, or an application identifier.

5 . A communication method of a session management function (SMF), the method comprising:
determining whether a terminal location is changed in an area of interest; transmitting, to a policy control function (PCF), a first message including information on a change of the terminal location in the area of interest, in response to a determination that the terminal location is changed in the area of interest; and receiving, from the PCF, a second message including information on a user plane function (UPF) for steering a protocol data unit (PDU) session associated with traffic to the UPF.

6 . The method of claim 5 , wherein the transmitting of the first message comprises:
receiving, from the PCF, a third message for the SMF to transmit notification about the change of the terminal location in the area of interest to the PCF; determining whether the terminal entered the area of interest or the terminal left the area of interest; and transmitting, to the PCF, the first message including information indicating that the terminal entered the area of interest or the terminal left the area of interest, in response to a determination that the terminal entered the area of interest or the terminal left the area of interest.

7 . The method of claim 5 , further comprising steering the PDU session associated with the traffic to the UPF.

8 . The method of claim 5 , wherein the third message comprises information on the area of interest.

9 . A policy control function (PCF), comprising:
a transceiver; and a controller coupled with the transceiver and configured to: receive, from an application function (AF), a first message including information identifying a user plane function (UPF) toward which traffic routing is applied and information on a spatial condition of a terminal location, receive, from a session management function (SMF), a second message including information on a change of the terminal location in an area of interest determined based on the spatial condition, select a UPF based on the information identifying the UPF and the information on the change of the terminal location, and transmit, to the SMF, a third message including information on the selected UPF for steering a protocol data unit (PDU) session associated with the traffic to the selected UPF.

10 . The PCF of claim 9 , wherein the controller is further configured to:
transmit, to the SMF, a fourth message to subscribe to the SMF to receive a notification about the change of the terminal location in the area of interest, and receive, from the SMF, the second message including information indicating that the terminal entered the area of interest or the terminal left the area of interest.

11 . The PCF of claim 9 , wherein the controller is further configured to:
transmit, to the AF, a fifth message, in response to the first message, and store the information on identification of the UPF toward which the traffic routing is applied and the information on the spatial condition of the terminal location.

12 . The PCF of claim 9 , wherein the first message further comprises at least one of an identification of the terminal, a dada network name, network slice information, or an application identifier.

13 . A session management function (SMF), comprising:
a transceiver; and a controller coupled with the transceiver and configured to: determine whether a terminal location is changed in an area of interest, transmit, to a policy control function (PCF), a first message including information on a change of the terminal location in the area of interest, in response to a determination that the terminal location is changed in the area of interest, and receive, from the PCF, a second message including information on a user plane function (UPF) for steering a protocol data unit (PDU) session associated with traffic to the UPF.

14 . The SMF of claim 13 , wherein the controller is further configured to:
receive, from the PCF, a third message for the SMF to transmit notification about the change of the terminal location in the area of interest to the PCF, determine whether the terminal entered the area of interest or the terminal left the area of interest, and transmit, to the PCF, the first message including information indicating that the terminal entered the area of interest or the terminal left the area of interest, in response to a determination that the terminal entered the area of interest or the terminal left the area of interest.

15 . The SMF of claim 13 , wherein the controller is further configured to steer the PDU session associated with the traffic to the UPF, and
wherein the third message comprises information on the area of interest.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Baek Youngkyo
• Son Jungje
• Lee Hoyeon
• Kim Sunghoon

Classifications

• H04W28/16

  Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service] · CPC title

• H04W8/02

  Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks · CPC title

• H04W76/11

  Allocation or use of connection identifiers · CPC title

• H04W4/02

  Services making use of location information · CPC title

• H04W40/20 Primary

  based on geographic position or location · CPC title