OMA LWM2M

OMA Lightweight M2M is a protocol from the Open Mobile Alliance for M2M or IoT device management. Lightweight M2M enabler defines the application layer communication protocol between a LwM2M Server and a LwM2M Client, which is located in a LwM2M Device. The OMA Lightweight M2M enabler includes device management and service enablement for LwM2M Devices. The target LwM2M Devices for this enabler are mainly resource-constrained devices. Therefore, this enabler makes use of a light and compact protocol as well as an efficient resource data model. It provides a choice for the M2M Service Provider to deploy a M2M system to provide service to the M2M User. It is frequently used with CoAP[1].

OMA Lightweight M2M is designed to:

  • Provide Device Management functionality over sensor or cellular networks
  • Transfer service data from the network to devices
  • Extend to meet the requirements of most any application

Versions

OMA LwM2M 1.0

Lightweight M2M 1.0 enabler introduces the following features below for the initial release.

  • Simple Object based resource model
  • Resource operations of creation/retrieval/update/deletion/configuration of attribute
  • Resource observation/notification
  • TLV/JSON/Plain Text/Opaque data format support
  • UDP and SMS transport layer support
  • DTLS based security
  • Queue mode for NAT/Firewall environment
  • Multiple LwM2M Server support
  • Basic M2M functionalities: LwM2M Server, Access Control, Device, Connectivity, Firmware Update, Location, Connectivity Statistics [2]

See also

References
  1. https://www.omaspecworks.org/what-is-oma-specworks/iot/lightweight-m2m-lwm2m/
  2. Lightweight Machine to Machine Requirements: Version 1.1 – 10 Jul 2018 Open Mobile Alliance (OMA-RD-LightweightM2M-V1_1-20180710-A)
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