UpdateGprsLocationArg Message
This service is used by the SGSN to update the location information stored in the HLR. In an EPS, this service is used between
IWF and IWF and between IWF and HSS. This operation package includes the operations required for the gprs location management procedures between
HLR and SGSN. Initiating entity: SGSN. updateGprsLocation is a consumer invoke.
Reference: TS 29.002-f30