US 12,641,034 B2 · End-to-end latency guarantee for downlink traffic

Abstract

A method and a network device for achieving end-to-end latency guarantees, where the method includes: receiving, by a network device in a core network, a latency guarantee service (LGS) request message from a source node in a data network (DN), the LGS request message requesting to transmit traffic to an end device and comprising one or more of a LGS indicator, an end-to-end packet delay budget (PDB) requirement, a maximum flow rate, and an end device identifier; determining a remaining PDB for the core network and a transport network; sending an LGS slice selection request to a network function, including one or more of the remaining PDB, the maximum flow rate, and the identifier; and receiving an LGS response from the network function, which identifies an LGS slice for the requested traffic and indicates whether the LGS slice is able to satisfy the remaining PDB and the maximum flow rate.

Claims16

Dependent claims

A method for end-to-end latency guarantees, the method comprising:

receiving, by a network device in a core network, a latency guarantee service (LGS) request message from a source node in a data network (DN), the LGS request message requesting to transmit traffic to an end device, the LGS request message comprising an end-to-end packet delay budget (PDB) requirement, a maximum flow rate, and an identifier of the end device;
determining, by the network device, based on the LGS request message, a remaining PDB for the core network and a transport network;
sending, by the network device, based on the LGS request message, an LGS slice selection request to a network function, the LGS slice selection request including the remaining PDB, the maximum flow rate, and the identifier;
and
receiving, by the network device, an LGS response from the network function, the LGS response identifying an LGS slice able to satisfy the remaining PDB and the maximum flow rate for the traffic.

2 more elements

A network device for achieving end-to-end latency guarantees, comprising:

a memory storing instructions;
and
at least one processor in communication with the memory, the at least one processor configured, upon execution of the instructions, to perform the following steps:
receive a latency guarantee service (LGS) request message from a source node in a data network (DN), the LGS request message requesting to transmit traffic to an end device, and the LGS request message comprising an end-to-end packet delay budget (PDB) requirement, a maximum flow rate, and an identifier of the end device;
determine, based on the LGS request message, a remaining PDB for a transport network and a core network, the network device being disposed in the core network;
send, based on the LGS request message, an LGS slice selection request to a network function, the LGS slice selection request including the remaining PDB, the maximum flow rate, and the identifier;
and
receive an LGS response from the network function, the LGS response identifying an LGS slice able to satisfy the remaining PDB and the maximum flow rate for the traffic.

5 more elements

Dependencies are inferred from the claim text.

End-to-end latency guarantee for downlink traffic

Life of this patent

End-to-end latency guarantee for downlink traffic

Life of this patent

Abstract

Claims16