The Diameter Solution Suite™ (DSS) can be deployed in the IMS to act as a SLF or DRA or both. All elements connect to the DSS and all Diameter traffic passes through the DSS. The DSS examines the Diameter messages and performs load balancing and binding across the multiple instances of the HSS, PCRF and OCS/OFCS. This use case describes HSS, PCRF and OCS/OFCS LTE Load Balancing in IMS.