5G handover Xn N2 procedures are defined step-by-step in 3GPP TS 38.300 (overall description) and TS 23.502 Section 4.9 (detailed signaling flows) — and the specific messages exchanged at each…[...]
Read More
5G QoS 5QI values are standardized to the exact millisecond and percentage point in 3GPP TS 23.501, Table 5.7.4-1 — not loose guidance, but a precise table any compliant network…[...]
Read More
5G network slicing is identified and selected through a precisely defined 3GPP data structure — S-NSSAI (Single Network Slice Selection Assistance Information), per TS 23.501 Section 5.15 — with standardized…[...]
Read More
CUPS control user plane separation is a precisely defined 3GPP concept — Release 14’s TS 23.214 for its original 4G/EPC application, using the PFCP (Packet Forwarding Control Protocol, TS 29.244)…[...]
Read More
AMF SMF UPF 5G Core functions are formally defined in 3GPP TS 23.501, Section 6.2, with precise responsibility boundaries — and understanding exactly where LTE’s EPC functions were split apart…[...]
Read More
5G Core Service-Based Architecture is formally specified in 3GPP TS 23.501 (architecture) and TS 23.502 (procedures), using a concrete HTTP/2 and OpenAPI-based framework called the Service-Based Interface (SBI) — a…[...]
Read More
5G NR initial access SSB procedures are governed by 3GPP TS 38.213 and TS 38.211, and the mechanism is meaningfully redesigned from LTE’s PSS/SSS/MIB model — partly to support beamformed…[...]
Read More
Massive MIMO beamforming 5G implementations rely on standardized reference signal feedback — principally CSI-RS, defined in 3GPP TS 38.211, Section 7.4.1.5 — to let a base station learn each device’s…[...]
Read More
5G NR slot scheduling is defined across 3GPP TS 38.211 and TS 38.213, and it’s the layer where Module 1’s 1ms URLLC latency target actually gets implemented in concrete scheduling…[...]
Read More
The 5G CU DU RU split isn’t a single fixed architecture — 3GPP TR 38.801 defines eight distinct functional split options between these components, each cutting the radio protocol stack…[...]
Read More