LoRa-Alliance.org Brief LoRa Introduction Alper Yegin, LoRa Alliance Strategy Committee Vice-chair / Actility IETF 96.

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Presentation transcript:

LoRa-Alliance.org Brief LoRa Introduction Alper Yegin, LoRa Alliance Strategy Committee Vice-chair / Actility IETF 96

LoRa-Alliance.org LoRa RF CharacteristicsLoRa RF ModulationLoRa (spread spectrum) FrequencySub-GHz ISM Channel bandwidth KHz Data rate300 bps – 50 kbps Gateway sensitivity-142 dBm/300bps Range10+ km, deep indoor coverage Payload size11 – 242 bytes (variable) Battery consumption10mA RX / 32mA (14dBm) TX year Communication typeBidirectional unicast, network multicast Interference immunitySpread-spectrum w/ FEC ScalabilitySelf scaling network capability through Adaptive Data Rate MobilityHandover support, geo-location LoRa: Long Range radio...

LoRa-Alliance.org Adaptive Data Rate (ADR) Max app payload size variable ( bytes) based on the used datarate and local ISM regulation

LoRa-Alliance.org Device Classes Class nameIntended usage A (« all ») Battery powered sensors, or actuators with no latency constraint. Most energy efficient communication class. Downlink TX can only happen after uplink. B (« beacon ») Battery powered actuators Device opens receive window at scheduled slots. C (« continuous ») Mains powered actuators Devices which can afford to listen continuously. No latency for downlink communication.

LoRa-Alliance.org Class A TX/RX N sec ± 20 μsec N+1 sec ± 20 μsec

LoRa-Alliance.org Architecture Star topology, P2P links MAC layer (LoRaWAN) between the Device and NS Compressed Release alliance.org/portals/0/specs/LoRaW AN%20Specification%201R0.pdf 64bit device identifier (DevEUI) 32bit device address (DevAddr) Public and private deployments Release 1.1 (Q4 2016): Backend Interfaces Roaming App & Nwk key separation

LoRa-Alliance.org App Stacks

LoRa-Alliance.org Security Per-device AppKey, NwkKey (AES128) Mutual end-point authentication via Join Procedure [AES-CMAC, RFC 4493] Data origin authentication, integrity protection, replay protection Encryption of MAC commands (over-the-air), app payloads (end-to-end) [IEEE /2006 Annex B (CCM*)] Key hierarchy with root and session keys, session rekeying

LoRa-Alliance.org LoRa Alliance An open, non-profit association to develop standard specifications and ecosystem for LoRa-based secure, interoperable, and carrier-grade IoT network technology Founded in March members: chipset/module/device/infra vendors, operators 16 announced nationwide/operator deployments, 56 on-going trials Committees: Strategy, Technical, Certification, Marketing

LoRa-Alliance.org Thank you The LoRa ™ Alliance “ENABLING THINGS TO HAVE A GLOBAL VOICE”