One business model issue many observers have raised is the need to create dense networks of small cells to support 5G millimeter wave spectrum, something that puts T-Mobile and AT&T at a disadvantage, with Verizon at an advantage, said FibeReality founder Mark Lutkowitz at a #PTC21 session on advanced technologies.
Millimeter wave spectrum is the game changer for 5G, “if there is one,” said Benoit Felten, Diffraction Analysis founder.
Qualcomm, though, believes there are ways to create dense millimeter wave networks based on small cells without pulling new optical fiber to each small cell.
But 3GPP Release 16-defined integrated access and backhaul allows 5G base stations to backhaul wirelessly to neighboring base stations using the same mmWave spectrum used to support retail 5G access.
IAB will enable lower-cost densification strategies in the near term, allowing mobile operators to quickly add new base stations to their networks before having to install new fiber to increase backhaul capacity later, Qualcomm argues.
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