Uplink pdr generation method, apparatus, and system

A session management network element, comprising:

• a memory storing executable instructions;
• a processor configured to execute the executable instructions to perform operations of:
• receiving a first policy and charging control (PCC) rule from a policy control network element, wherein the first PCC rule comprises downlink service data flow (SDF) information that corresponds to a first service;
• generating, according to the first PCC rule when the first PCC rule comprises a reflective quality of service control (RQC) indication, a first uplink packet detection rule (PDR) that corresponds to the first service;
• and
• sending, to a user plane network element, the first uplink PDR that corresponds to the first service.

A communication system, wherein the communication system comprises a session management network element and a policy control network element, wherein

• the policy control network element is configured to send a first policy and charging control (PCC) rule to the session management network element, wherein the first PCC rule comprises downlink service data flow (SDF) information that corresponds to a first service;
• the session management network element is configured to:
• receive the first PCC rule from the policy control network element;
• and when the first PCC rule comprises reflective quality of service control (RQC) indication, generate, according to the first PCC rule, a first uplink PDR that corresponds to the first service;
• and
• the session management network element is further configured to send, to a user plane network element, the first uplink (PDR) that corresponds to the first service.

An uplink packet detection rule (PDR) generation method, comprising:

• sending, by a policy control network element, a first policy and charging control (PCC) rule to a session management network element, wherein the first PCC rule comprises downlink service data flow (SDF) information that corresponds to a first service;
• receiving, by the session management network element, a first policy and charging control (PCC) rule from the policy control network element;
• when the first PCC rule comprises a reflective quality of service control (RQC) indication, generating, by the session management network element according to the first PCC rule, a first uplink (PDR) that corresponds to the first service;
• and
• sending, by the session management network element to a user plane network element, the first uplink PDR that corresponds to the first service.