Thirteen cinematic, cue-synced modules that build the whole xHaul network — from the fronthaul (eCPRI & O-RAN 7.2x) through F1/NG/Xn, IP/MPLS segment routing, Carrier Ethernet & FlexE, SyncE & PTP timing, QoS, slicing & IPsec security, to resilience & assurance. Every claim cited to 3GPP, IETF, ITU-T, IEEE & O-RAN. Not slides — engineering.
Every layer animates in sync with the narration, every field is decoded from real bytes, and every fact is quoted from the exact 3GPP / IETF / ITU-T / IEEE / O-RAN clause — so you can design and debug a live xHaul network, not just name its interfaces.
Word-for-word from TS 38.401/470/473, 29.281, eCPRI, O-RAN CUS.0, RFCs 8402/8986, G.8275.1, 802.1Q/CM — clause on screen.
The player is a live stage: tunnels form, labels stack, boundary clocks cleanse phase, rings fail over — exactly as the narration reaches each idea.
Fronthaul dimensioner, eCPRI calculator, GTP-U decoder, SR path builder, FlexE channelizer, PTP offset calc, slice-defense builder, G.8032 ring sim, SLA calculator & more.
Decode a GTP-U header, a 5QI→DSCP mapping, an MPLS/SR label stack, a PTP four-timestamp exchange and an ESP-wrapped packet — by hand.
The capstone follows a single URLLC packet from the antenna to the core and back, naming every layer of every module as it passes — the synthesis of the course.
Each module ends with a spec-cited quiz. Finish the course and earn your CafeTele certificate. Lifetime access, learn at your pace.
Chapter 1 is free — no sign-up, just press play. The rest unlock with full access.
Fronthaul / midhaul / backhaul · CU/DU/RU · why the RAN was disaggregated · TS 38.401/38.470 & TR 38.801 verbatim · live dimensioning playground.
All 8 split options · the 7.2x decision · Annex-A fine print · interactive split slider & decision helper.
CPRI basic frames · eCPRI messages & encapsulation · the bandwidth explosion · live CPRI-vs-eCPRI calculator.
The four planes · eAxC · all 12 section types · Cat-A/B · compression · eAxC bit-budget builder.
Reception windows · the master inequality · LLS-C1–C4 · reception-window solver & bandwidth dimensioner.
F1-C/F1-U · GTP-U tunnels · UE Context · SDAP/5QI · live GTP-U header decoder + bearer-birth player.
N2/NGAP · N3/GTP-U · PDU Session Resource Setup · QFI→5QI→DSCP bridge · Xn handover · N3 packet decoder.
MPLS/LSP · SR node/adj/anycast/binding SID · SRv6/SRH · TI-LFA · L3VPN/EVPN · interactive SR path builder.
MEF EVCs · optics 10G→400G · NRZ/PAM4/coherent · TSN 802.1CM · FlexE channelization builder.
Frequency vs phase · ±50 ppb · the EEC · ESMC/SSM quality levels · QL-DNU · best-source selector + chain sim.
The 4-timestamp exchange · offset & asymmetry · boundary clocks · the ±1.5 µs budget · PTP offset + hop-budget calc.
DiffServ/DSCP · 5QI→DSCP · the isolation stack · RFC 9543 · IPsec/ESP · MACsec · slice-defense builder + MTU calc.
Dimensioning · G.8032 rings · BFD · TWAMP/Y.1731 · one URLLC packet end to end · ring simulator + SLA calc.
Builds and optimizes live 5G RAN and transport networks. This course distills real integration work into a spec-exact, wire-level walkthrough of the whole xHaul — the way an engineer actually designs, times, slices and protects the network. Also the author of CafeTele's O-RAN, 5G Core, NR PHY and NTN masterclasses.
Yes — Chapter 1, "xHaul Foundations & the RAN Split", is completely free. No sign-up, no card. Just press "Watch Chapter 1 — Free" and it plays. It's a full 50-minute advanced module, so you can judge the depth before you enroll.
Transport, RAN and 5G engineers, IP/MPLS and optical teams, timing/sync specialists, and anyone who needs to design, integrate or troubleshoot the 5G xHaul end to end. It's advanced — comfort with 5G basics helps, but every concept is built from the spec.
Every module is a cinematic, cue-synced video: tunnels form, label stacks build, boundary clocks cleanse phase and rings fail over in time with the narration — plus 13 interactive tools you operate yourself. You learn to engineer the network, not memorize acronyms.
3GPP (TS 38.401/470/473/413/423, 29.281, 38.415), eCPRI & O-RAN CUS.0, IETF (RFC 8402/8660/8986/7432/9256/9350/9543/5357), ITU-T (G.8261/8262/8264/8275.1/8273.2/8271.1/8032), IEEE (802.1Q/CM/AS, 1588, 802.1AE) and OIF FlexE. Clauses and versions are shown on screen.
Yes. One payment gives you lifetime access to all 13 modules and every interactive tool, plus any future updates, and you earn a CafeTele completion certificate after finishing the quizzes.
Yes — the course is fully in English, with English karaoke subtitles you can size up or down in the player.
Watch Chapter 1 free, then unlock the full end-to-end transport masterclass.