LTE-M (Cat-M1)
LTE-M is the go-to for IoT devices needing voice, mobility, and moderate data rates on cellular. PSM and eDRX power modes directly affect battery life design in firmware and device management.
What It Defines
LTE for Machines (LTE-M / Cat-M1) is a low-power wide-area (LPWA) cellular standard derived from LTE. Supports 1.4 MHz bandwidth, peak DL 1 Mbps, PSM (Power Saving Mode) and eDRX for battery life, voice (VoLTE), and mobility. Used in asset tracking, wearables, and smart meters.
Canonical (Normative)
Convenient (Practical)
The global collaboration of telecommunications standards bodies that produces the mobile network specifications: GSM/EDGE, UMTS/HSPA, LTE/4G, 5G NR, and IMS. Technical specifications (TS) and reports (TR) are freely available at 3gpp.org. Releases (Rel-8, Rel-15, Rel-17…) provide versioned capability sets.
Related Specs
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