Charging Control for Non-Public Network

Patent metadata

Field	Value
Publication number	US-2021184875-A1
Application number	US-202117166179-A
Country	US
Kind code	A1
Filing date	Feb 3, 2021
Priority date	Mar 29, 2019
Publication date	Jun 17, 2021
Grant date	—

Abstract

A session management function sends, to a policy control function, a policy request message. The policy request message comprises a non-public network identifier of a non-public network through which a wireless device accesses a public land mobile network. The policy request message comprises an identifier of the public land mobile network. The session management function receives, from the policy control function, a policy response message comprising a charging control policy.

First claim

What is claimed is:

1 . A method comprising:
sending, by a session management function (SMF) to a policy control function (PCF), a policy request message comprising:
a non-public network (NPN) identifier of an NPN through which a wireless device accesses a public land mobile network (PLMN); and
a PLMN identifier of the PLMN; and
receiving, by the SMF from the PCF, a policy response message comprising a charging control policy.

2 . The method of claim 1 , further comprising receiving, by the SMF from an access and mobility management function (AMF), a message comprising one or more of the NPN identifier and the PLMN identifier.

3 . The method of claim 2 , wherein the message comprises at least one of:
a data network name (DNN); a single network slice selection assistance information (S-NSSAI); and a packet data unit (PDU) session identifier.

4 . The method of claim 2 , wherein the sending the policy request message is based on the receiving the message from the AMF.

5 . The method of claim 1 , further comprising sending, by the SMF to a charging function, a charging data request message based on the policy response message.

6 . The method of claim 5 , wherein the charging data request message comprises the PLMN identifier.

7 . The method of claim 1 , wherein the policy request message further comprises at least one of:
a wireless device identifier of the wireless device; a data network name (DNN); a single network slice selection assistance information; or a packet data unit session identifier.

8 . The method of claim 1 , wherein the policy response message comprises at least one of:
a charging control rule; the NPN identifier; a single network slice selection assistance information (S-NSSAI); and a packet data unit (PDU) session identifier.

9 . The method of claim 1 , further comprising sending, by the SMF to a charging function (CHF), a charging data request message based on the policy response message.

10 . The method of claim 9 , wherein the charging data request message comprises the PLMN identifier.

11 . A method comprising:
receiving, by a policy control function (PCF) from a session management function (SMF), a policy request message comprising:
a non-public network (NPN) identifier of an NPN through which a wireless device accesses a public land mobile network (PLMN); and
a PLMN identifier of the PLMN; and
sending, by the PCF to the SMF, a policy response message comprising a charging control policy.

12 . The method of claim 11 , further comprising determining, by the PCF, the charging control policy.

13 . The method of claim 12 , wherein the determining the charging control policy is based on the NPN identifier.

14 . The method of claim 12 , wherein the determining the charging control policy is based on the PLMN identifier.

15 . The method of claim 12 , further comprising sending, by the PCF to a unified data repository (UDR), a subscription request message comprising the PLMN identifier and the NPN identifier.

16 . The method of claim 15 , further comprising receiving, by the PCF from the UDR, charging control information for the NPN.

17 . The method of claim 16 , further comprising determining a charging control rule for the NPN based on the charging control information for the NPN received from the UDR.

18 . The method of claim 16 , wherein the determining the charging control policy is based on the charging control information for the NPN received from the UDR.

19 . The method of claim 11 , wherein the policy request message further comprises at least one of:
a wireless device identifier of the wireless device; a data network name; a single network slice selection assistance information; or a packet data unit session identifier.

20 . A system, comprising:
a session management function (SMF) comprising: one or more processors and memory storing instructions that, when executed by the one or more processors, cause the SMF to:
send a policy request message comprising:
a non-public network (NPN) identifier of an NPN through which a wireless device accesses a public land mobile network (PLMN); and
a PLMN identifier of the PLMN; and

receive a policy response message comprising a charging control policy; and
a policy control function (PCF) comprising: one or more processors and memory storing instructions that, when executed by the one or more processors, cause the PCF to:
receive the policy request message; and
send the policy response message.

Assignees

• Ofinno Llc

Inventors

• Qiao Weihua
• Dinan Esmael Hejazi
• Park Kyungmin
• Talebi Fard Peyman
• Bharatia Jayshree A
• Ryu Jinsook

Classifications

• H04W80/10

  adapted for {application} session management, e.g. SIP [Session Initiation Protocol] {(connection management H04W76/00; arrangements for session management H04L67/14)} · CPC title

• H04W76/18

  Management of setup rejection or failure · CPC title

• H04W76/11

  Allocation or use of connection identifiers · CPC title

• H04W4/24 Primary

  Accounting or billing · CPC title

• H04M15/66

  Policy and charging system · CPC title