Data traffic monitoring method, SMF network element, PSA network element and readable storage medium
A technology of data traffic and network elements, applied in the field of 5G communication, can solve the problem of not describing the cumulative statistics of multiple UPF usage, and achieve the effect of accurately monitoring data traffic
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Embodiment 1
[0033] Solve the problem that under the current 5G network architecture, there is no method to provide data traffic statistics involving multiple UPF anchor PSAs. The embodiment of the present invention provides a data traffic monitoring method, including: the session management network element SMF receives the usage monitoring instance issued by the charging control strategy network element PCF, and converts the usage monitoring instance into a usage reporting rule URR; session management The network element SMF sends the usage report rule URR to the ULCL UPF, and at least two UPF anchor points under the ULCL UPF, the first PSA and the second PSA, and the ULCL UPF is the datagram of the PDU session created by the session management network element SMF A ULCL UPF inserted in the file transmission path; the session management network element SMF determines the traffic usage according to the traffic statistics results reported by the ULCL UPF and at least two UPF anchor points, t...
Embodiment 2
[0051] This embodiment provides a data traffic monitoring method, which is applied in a 5G communication system. The data traffic monitoring method includes: the PSA of the UPF anchor receives the usage report rule URR sent by the session management network element SMF, and according to the usage report rule URR Count uplink traffic; when receiving a query command sent by the session management network element SMF, send the uplink traffic statistics result to the session management network element SMF.
[0052] In some embodiments, the PSA includes at least a first PSA and a second PSA. The PSA is connected to the ULCL UPF. After the user terminal accesses the 5G network and the PDU session is established, the user terminal is connected to the ULCL UPF. The ULCL UPF sends and receives data through the PSA. Therefore, the PSA connected to the ULCL UPF usually includes At least two or more.
[0053] In some embodiments, the usage reporting rule URR includes: a traffic threshold...
Embodiment 3
[0056] This embodiment provides a data traffic monitoring method, which specifically includes the following steps:
[0057] Step S1, the network element PCF of the charging control policy issues a usage monitoring instance to monitor the service data flow on the PDU session created by the terminal user. There may be more than one PSA managed by the PDU session. In order to accurately count the user's data traffic, the session management network element SMF needs to convert the usage monitoring instance into a URR and send it to the ULCLUPF and the anchor UPF PSA1 and PSA2 respectively. The URR received by different UPFs for usage monitoring includes the traffic threshold for user data traffic monitoring and a URRID. URRID is used as the identification ID of a URR, and the URRIDs on different UPFs can be the same or different without limitation.
[0058] Step S2, the data message of the user terminal distinguishes uplink and downlink. For the downlink data message, it is aggre...
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