Section: B.2.2 Serving PLMN Rate Control information handling in the PGW
Content: If Serving PLMN rate control information is received in the Serving PLMN Rate Control IE from the MME, the PGW shall store this information and use that for rate control enforcement DL for this UE. If the PGW previously have received Serving PLMN rate control information, the PGW shall behave as follows: - If the PGW receives new Serving PLMN rate control information in the Serving PLMN Rate Control IE from the MME, the PGW shall replace the old Serving PLMN rate control information with the new Serving PLMN rate control information and use that for rate control enforcement DL for this UE. - If the PGW receives no Serving PLMN rate control information in the Serving PLMN Rate Control IE from the MME in an IP-CAN session establishment or an IP-CAN session modification , the PGW shall still consider the latest received Serving PLMN rate control information from the MME as valid. - If PGW receives an indication that Serving PLMN rate control does not apply in the Serving PLMN Rate Control IE, the PGW shall remove the rate control information based on Serving PLMN rate control information. See 3GPP TS 29.274[ 3GPP Evolved Packet System (EPS); Evolved General Packet Radio Service (GPRS) Tunnelling Protocol for Control plane (GTPv2-C); Stage 3 ]  [81] for Serving PLMN Rate Control IE definition. APN rate control, if configured, also applies for the same IP-CAN session, see subclause B.2.1.