Thus, service characteristics are maintained, since any colocated value-added services connected to the UPF are the same, and the policy control function (PCF) applies session policies for the device when connecting over 4G or 5G access.Policy and subscription management need to be provided in a consistent way for a device using NR or LTE access. There are several supported migration paths per domain to a full 5GS, and the transition can be adapted to address each operator’s specific needs per domain. 5GC includes the separation of UP and CP functions of the gateway, which was an evolution of the gateway CP/UP separation (CUPS) introduced in EPC Release 14. He joined Ericsson in 1990 and has worked in a variety of technology areas such as fiber-to-the-home, main-remote RBS, fixed-mobile convergence, IPTV, network architecture evolution, software-defined networking and Network Functions Virtualization. Operators that use SMSoNAS for devices in the EPS are migrating to support SMSoNAS in the 5GS.

This can be a stepwise migration.The EPC-5GC tight interworking architecture shown in Figure 1 assumes common subscription management support regardless of the access technology used by a given user. For example, using a service request to perform EPS fallback of emergency calls is a possible first migration step. 5GC 5G Core 5G-MoNArch 5G Mobile Network Architecture for diverse services, use cases, and applications in 5G and beyond 5G-PICTURE 5G Programmable Infrastructure Converging disaggregated neTwork and compUte Resources 5G PPP 5G Infrastructure Public Private Partnership 5GS 5G System AADU Active Antenna Distributed Unit

The NR FDD spectrum on low band can be either new, re-farmed or an existing LTE band that is shared between NR and LTE using dynamic spectrum sharing.

His work includes both technology studies and contributions to product strategies for mobile communication, including communication services in 5G, migration to the 5GS, and interworking and coexistence with legacy networks.

One option is to first introduce CUPS into the EPS, which enables the operator to use the CP and UP separation before migrating to the 5GS. This requires subscription data migration from the legacy 4G-UDR/SPR to the 5G-UDR. This long-term need is a strong argument in support of the concept of a dual-mode core network solution that includes both EPC and 5GC functionality.A key benefit of a dual-mode core network solution is the common operational model for the EPC and 5GC, which simplifies the management of the overall system. This includes the evolution of mobile telephony to IMS and VoLTE. It is typically used prior to the deployment of all the voice capabilities in NR or before the RAN is dimensioned and tuned for voice.The subsequent voice migration from EPS fallback to voice over NR is achieved by allowing voice calls to be established on NR connected to the 5GC instead of performing EPS fallback at call establishment. Identified in the specifications of 5G NRM requirements (TS 28.540 and TS 28.542), the NRM of 5G network comprises NRM for the 5G core network (5GC) and NRM for 5G radio access network (i.e. The device does not need to transmit on two uplinks at the same time.

new business opportunities without bringing extensive or costly reconfigurations. In his current role, he focuses on 5G and associated network architecture evolution.

The existing HSS instances may reach subscription data for 5G-enabled users from the 5G-UDR through the local 4G-UDR/SPR using proprietary interfaces, for example. Are you familiar with the new Network Functions in 5GC and how they compare to the Network Functions in Evolved Packet Core (EPC)?Like what you’re reading? This allows the new high-capacity 5G devices to be served by a CP and UP split-gateway architecture when connecting over either 4G or 5G access, as shown in the middle part of Figure 3. Depending on the site grid, introducing the NG-RAN with NR SA only on these bands may lead to spotty NR coverage that is only suitable for local area services.

In the longer term, the introduction of 5GS supporting mobile broadband as initial wide-area service is a solid foundation to introduce additional services and use cases, meeting the full expectation on a future-proof 5GS.We are now starting to see commercial 5G networks going live.