Charging policy information for a packet data unit session of a wireless device
A charging function (CHF) receives, from a policy control function (PCF), a first request for charging policy information for a packet data unit (PDU) session of a wireless device. The charging policy information is determined for the PDU session of the wireless device. The charging policy information indicates a charging method comprising one or more of: online charging; offline charging; and converged charging. A message comprising the charging policy information is sent to the PCF. The CHF receives from a session management function (SMF), a second request to establish a charging session. The second request comprises the charging method. A confirmation for the charging method is sent to the SMF.
1. A method comprising:
receiving, by a charging function (CHF) from a policy control function (PCF), a first request for charging policy information for a packet data unit (PDU) session of a wireless device;
determining, by the CHF, the charging policy information for the PDU session of the wireless device, wherein the charging policy information indicates a charging method comprising one or more of:
online charging;
offline charging; and
converged charging;
sending, by the CHF to the PCF, a message comprising the charging policy information;
receiving, by the CHF from a session management function (SMF), a second request to establish a charging session, wherein the second request comprises the charging method; and
sending, by the CHF to the SMF, a confirmation for the charging method.
2. The method of claim 1 , wherein the first request comprises at least one of:
an identifier of the wireless device;
a UE IP address; or
an identifier of the PDU session.
3. The method of claim 1 , further comprising receiving, by the CHF from the PCF, the first request via a network function.
4. The method of claim 1 , wherein the determining is based on at least one of:
an identifier of the wireless device;
a type of PDU session;
an access type;
a radio access technology (RAT) type;
a public land mobile network (PLMN) identifier;
an application identifier;
a data network name (DNN);
a single network slice selection assistance information (S-NSSAI);
the identifier of the PDU session; or
user location information.
5. The method of claim 1 , wherein the charging policy information further comprises a charging rate applied to the PDU session.
6. The method of claim 5 , wherein the second request comprises the charging rate.
7. The method of claim 1 , wherein the charging policy information further comprises an address of the CHF applied to the PDU session.
8. The method of claim 7 , wherein the second request comprises the address of the CHF.
9. The method of claim 1 , wherein the second request further comprises a requested charging method indication, wherein the requested charging method indication comprises at least one of:
an information element indicating a requested online charging;
an information element indicating a requested offline charging; or
an information element indicating a requested converged charging.
10. The method of claim 1 , further comprising sending, by CHF to the SMF, a charging data response message comprising an accepted charging method indication, wherein the accepted charging method indication comprises at least one of:
an information element indicating an accepted online charging;
an information element indicating an accepted offline charging; or
an information element indicating an accepted converged charging.
11. An apparatus comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause a charging function (CHF) to:
receive, from a policy control function (PCF), a first request for charging policy information for a packet data unit (PDU) session of a wireless device;
determine the charging policy information for the PDU session of the wireless device, wherein the charging policy information indicates a charging method comprising one or more of:
online charging;
offline charging; and
converged charging;
send, to the PCF, a message comprising the charging policy information;
receive, by the CHF from a session management function (SMF), a second request to establish a charging session, wherein the second request comprises the charging method; and
send, to the SMF, a confirmation for the charging method.
12. The apparatus of claim 11 , wherein the first request comprises at least one of:
an identifier of the wireless device;
a UE IP address; or
an identifier of the PDU session.
13. The apparatus of claim 11 , wherein the instructions, when executed by the one or more processors, further cause the apparatus to receive, from the PCF, the first request via a network function.
14. The apparatus of claim 11 , wherein the determination is based on at least one of:
an identifier of the wireless device;
a type of PDU session;
an access type;
a radio access technology (RAT) type;
a public land mobile network (PLMN) identifier;
an application identifier;
a data network name (DNN);
a single network slice selection assistance information (S-NSSAI);
the identifier of the PDU session; or
user location information.
15. The apparatus of claim 11 , wherein the charging policy information further comprises a charging rate applied to the PDU session.
16. The apparatus of claim 15 , wherein the second request comprises the charging rate.
17. The apparatus of claim 11 , wherein the charging policy information further comprises an address of the CHF applied to the PDU session.
18. The apparatus of claim 11 , wherein the second request further comprises a requested charging method indication, wherein the requested charging method indication comprises at least one of:
an information element indicating a requested online charging;
an information element indicating a requested offline charging; or
an information element indicating a requested converged charging.
19. The apparatus of claim 11 , wherein the instructions, when executed by the one or more processors, further cause the apparatus to send, to the SMF, a charging data response message comprising an accepted charging method indication, wherein the accepted charging method indication comprises at least one of:
an information element indicating an accepted online charging;
an information element indicating an accepted offline charging; or
an information element indicating an accepted converged charging.
20. A system comprising:
a policy control function (PCF);
a session management function (SMF); and
an apparatus comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause a charging function (CHF) to:
receive, from the PCF, a first request for charging policy information for a packet data unit (PDU) session of a wireless device;
determine the charging policy information for the PDU session of the wireless device, wherein the charging policy information indicates a charging method comprising one or more of:
online charging;
offline charging; and
converged charging;
send, to the PCF, a message comprising the charging policy information;
receive, by the CHF from the SMF, a second request to establish a charging session, wherein the second request comprises the charging method; and
send, to the SMF, a confirmation for the charging method.