Enabling dynamic service flows in cable convergence networks
View Patent ↗Dynamic service flows are enabled in cable convergence networks which can include a cable modem device, a cable modem termination system (CMTS), and an access gateway function (AGF) device. An access gateway function (AGF) device receives, from an access and mobility management function (AMF) device of a core network, quality of service (QoS) information associated with a packet data unit (PDU) session of a cable modem device. The AGF device determines, based on the QoS information, QoS match criteria information. The AGF device sends, to a cable modem termination system (CMTS) associated with the cable modem device and via an interface, such as a common open policy service (COPS) interface, between the AGF device and the CMTS, a service flow creation message that includes the QoS match criteria information. Sending the service flow creation message enables the CMTS to create a first service flow between the CMTS and the cable modem device, and the cable modem device to create a second service flow between the cable modem device and the CMTS.
1 . An access gateway function (AGF) device, comprising:
one or more memories; and
one or more processors to:
receive, from an access and mobility management function (AMF) device of a core network, quality of service (QoS) information associated with a packet data unit (PDU) session of a cable modem device;
determine, based on the QoS information, QoS match criteria information;
send, to a cable modem termination system (CMTS) communicatively coupled to the cable modem device, a service flow creation message that includes the QoS match criteria information; and
send, to the CMTS, a service flow termination message to enable one or more of:
the CMTS to terminate a first service flow between the CMTS and the cable modem device, or
the cable modem device to terminate a second service flow between and the cable modem device and the CMTS.
2 . The AGF device of claim 1 , wherein sending the service flow creation message enables:
the CMTS to create a first service flow between the CMTS and the cable modem device; and
the cable modem device to create a second service flow between the cable modem device and the CMTS.
3 . The AGF device of claim 1 , wherein:
the QoS information indicates a QoS flow identifier (QFI) associated with a packet flow of the PDU session and one or more QoS parameters associated with the packet flow; and
the QoS match criteria information indicates a service flow identifier associated with the QFI and QoS policy information associated with the one or more QoS parameters.
4 . The AGF device of claim 3 , wherein the service flow identifier includes at least one of:
an Internet protocol (IP) differentiated services code point (DSCP), or
a virtual local area network (VLAN) priority code point (PCP).
5 . The AGF device of claim 1 , wherein the service flow creation message is one of:
a common open policy service (COPS) message,
a representational state transfer (REST) message,
a generic control plane (GCP) message,
a simple network management protocol (SNMP) message,
a HTTP secure (HTTPS) message, or
a proprietary message.
6 . The AGF device of claim 1 , wherein the AGF device sends the service flow creation message via an interface between the AGF device and the CMTS, wherein the interface is one of:
a common open policy service (COPS) interface,
a representational state transfer (REST) interface,
a generic control plane (GCP) interface,
a simple network management protocol (SNMP) interface,
a hypertext transfer protocol (HTTP) interface,
a HTTP secure (HTTPS) interface, or
a proprietary interface.
7 . The AGF device of claim 1 , wherein the one or more processors are further to:
receive, from the AMF device, other QoS information associated with the PDU session of the cable modem device;
determine, based on the other QoS information, other QoS match criteria information; and
wherein the one or more processors, to send the service flow termination message are to:
send, to the CMTS, the service flow termination message that includes the other QoS match criteria information.
8 . The AGF device of claim 1 , wherein the one or more processors are further to:
determine the other QoS match criteria information based on the other QoS information process the other QoS information to map one or more of:
a QoS flow identifier to a service flow identifier, or
one or more QoS parameters to a QoS policy information.
9 . A non-transitory computer-readable medium storing a set of instructions, the set of instructions comprising:
one or more instructions that, when executed by one or more processors of an access gateway function (AGF) device, cause the AGF device to:
receive, from a core network, quality of service (QoS) information associated with a packet data unit (PDU) session of a cable modem device;
send, to a cable modem termination system (CMTS) communicatively coupled to the cable modem device, a service flow creation message that includes QoS match criteria information associated with the QoS information; and
send, to the CMTS, a service flow termination message to enable one or more of:
the CMTS to terminate a first service flow between the CMTS and the cable modem device; and
the cable modem device to terminate a second service flow between and the cable modem device and the CMTS.
10 . The non-transitory computer-readable medium of claim 9 , wherein sending the service flow creation message enables:
the CMTS to create a first service flow between the CMTS and the cable modem device; and
the cable modem device to create a second service flow between the cable modem device and the CMTS.
11 . The non-transitory computer-readable medium of claim 9 , wherein:
the QoS information indicates a QoS flow identifier (QFI) associated with a packet flow of the PDU session; and
the QoS match criteria information indicates a service flow identifier associated with the QFI.
12 . The non-transitory computer-readable medium of claim 11 , wherein the service flow identifier includes at least one of:
an Internet protocol (IP) differentiated services code point (DSCP), or
a virtual local area network (VLAN) priority code point (PCP).
13 . The non-transitory computer-readable medium of claim 9 , wherein the service flow creation message is one of:
a common open policy service (COPS) message,
a representational state transfer (REST) message,
a generic control plane (GCP) message,
a simple network management protocol (SNMP) message,
a HTTP secure (HTTPS) message, or
a proprietary message.
14 . The non-transitory computer-readable medium of claim 9 , wherein the AGF device sends the service flow creation message via an interface between the AGF device and the CMTS, wherein the interface is one of:
a common open policy service (COPS) interface,
a representational state transfer (REST) interface,
a generic control plane (GCP) interface,
a simple network management protocol (SNMP) interface,
a hypertext transfer protocol (HTTP) interface,
a HTTP secure (HTTPS) interface, or
a proprietary interface.
15 . The non-transitory computer-readable medium of claim 9 , wherein the one or more instructions further cause the AGF to:
receive, from the core network, other QoS information associated with the PDU session of the cable modem device; and
send, to the CMTS, a service flow termination message that includes other QoS match criteria information associated with the other QoS information.
16 . The non-transitory computer-readable medium of claim 9 , wherein the one or more instructions further cause the AGF to:
determine the other QoS match criteria information based on the other QoS information process the other QoS information to map one or more of:
a QoS flow identifier to a service flow identifier, or
one or more QoS parameters to a QoS policy information.
17 . A method, comprising:
obtaining, by an access gateway function (AGF) device, quality of service (QoS) information associated with a packet data unit (PDU) session of a cable modem device; and
sending, by the AGF device, to a cable modem termination system (CMTS) communicatively coupled to the cable modem device, and based on the QoS information, a service flow creation message; and
sending, by the AGF device and to the CMTS, a service flow termination message to enable one or more of:
the CMTS to terminate a first service flow between the CMTS and the cable modem device, or
the cable modem device to terminate a second service flow between and the cable modem device and the CMTS.
18 . The method of claim 17 , wherein sending the service flow creation message enables:
the CMTS to create a first service flow between the CMTS and the cable modem device; and
the cable modem device to create a second service flow between the cable modem device and the CMTS.
19 . The method of claim 17 , wherein the service flow creation message is one of:
a common open policy service (COPS) message,
a representational state transfer (REST) message,
a generic control plane (GCP) message,
a simple network management protocol (SNMP) message,
a hypertext transfer protocol (HTTP) message,
a HTTP secure (HTTPS) message, or
a proprietary message.
20 . The method of claim 17 , wherein the AGF device sends the service flow creation message via an interface between the AGF device and the CMTS, wherein the interface is one of:
a common open policy service (COPS) interface,
a representational state transfer (REST) interface,
a generic control plane (GCP) interface,
a simple network management protocol (SNMP) interface,
a hypertext transfer protocol (HTTP) interface,
a HTTP secure (HTTPS) interface, or
a proprietary interface.