Strong knowledge in LTE/UMTS/GPRS with basic IMS knowledge is desired
Experience with Wireless Data Core networks, Architecture, Protocols and Interfaces
Knowledge of Policy and Charging elements within the packet core; PCEF, PCRF, PAS,OFCS, OCS.
Good understanding of Wireless Operator s end-end Network
Expertise in creating test plans for system level and feature level testing.
Experience with LTE core system interfaces and protocols such as S1-MME, S1-U, S6a, S11, S5/S8, Rx, NAS, S1-AP, RRC, GTPv2c, GTP-U, SGs-AP, Gn, Gx, Ga, Sy is desired