Table of Contents
This page discusses the possibilities for PM streaming. In D-Release a use case and effort driven PM streaming of non-standardized VES message was implemented.
Forward looking a (more) standardized way of PM streaming should be evaluated.
The O-RAN Operation and Maintenance Interface Specification v10.00 from June 2023 refers in chapter 6.3.2 Performance Data Streaming to the websocket protocol based on the requirements documented in 3GPP TS 28.550 v17.1.0 clause 5.2.3. With respect to the data model the specification references 3GPP TS 28.532 v17.3.0 clause 11.5.1.1.2.
file-based
Info: xml to s3 and kafka for control
E2 | O1 file base | O1 streaming | O2 DMS | O2 IMS | others | |||
---|---|---|---|---|---|---|---|---|
Protocol | SCTP | FTP(es) | websocket | ? | ? | gRPC | gNMI | |
UDP/TCP | TCP | http/2 | ||||||
Modelling Language | ASN.1 | 3GPP XML (xsd: 3GPP TS 28.550 Annex C) | ASN.1 | GBP (xsd: 3GPP TS 28.550 Annex C) | ? | ? | GPB | yang->GBP |
The specific data flow is defined by 3GPP TS 28.550 clause 5.1.1.2 and referenced by O-RAN.WG10.O1-Interface.0-R003-v10.00 6.3.2 Performance Data Streaming.
The following sequence diagram show the entire flow from pnfRegistration up the to PM Data Streaming. It shows that O-RAN Network Function must implement 3 protocols (HTTP1.1/TLS/json, NETCONF/TLS/json and WEBSOCKET/GBP).