8.3.8 Network-Initiated Dynamic PCC for S2c when accessing untrusted Fixed Broadband Access for NS-WLAN offloaded Traffic
23.1393GPP3GPP system - fixed broadband access network interworkingRelease 17Stage 2TS
The information flow of "Network-Initiated Dynamic PCC for DSMIPV6 on S2c when accessing untrusted Fixed Broadband Access for offloaded Traffic" is same as S2b case, which is defined in clause 7.7.