3GPP 24.501 v20.0.0 — the document's own text
6.2.9.2 URSP
Taught in 4. Inside TS 24.501, the document at the centre (CT1 — the group that writes what your phone says, overview).
The URSP requires interaction between upper layers and the 5GSM entities in the UE (see 3GPP TS 24.526 [19] for further details). Each of the 5GSM entities in the UE shall indicate attributes (e.g. PDU session identity, SSC mode, S-NSSAI, DNN, PDU session type, access type, PDU address) of a newly established PDU session to the upper layers. If a PDU session is released, the 5GSM entity handling the PDU session shall inform the PDU session identity of the released PDU session to the upper layers. The upper layers may request a 5GSM entity:
- to establish a PDU session indicating one or more PDU session attributes;
- to release an existing PDU session; or
- to establish a PDU session indicating one or more PDU session attributes, and to release an existing PDU session.