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1. (WO2018106159) METHODS AND APPARATUS FOR OPERATING AND MANAGING A CONSTRAINED DEVICE WITHIN

Pub. No.:    WO/2018/106159    International Application No.:    PCT/SE2016/051218
Publication Date: Fri Jun 15 01:59:59 CEST 2018 International Filing Date: Tue Dec 06 00:59:59 CET 2016
IPC: H04W 4/00
H04L 12/18
H04L 29/08
H04L 29/12
Applicants: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventors: JIMÉNEZ, Jaime
OCAK, Mert
MELÉN, Jan
Title: METHODS AND APPARATUS FOR OPERATING AND MANAGING A CONSTRAINED DEVICE WITHIN
Abstract:
A method (100) for operating a constrained device within a network is disclosed, the constrained device being configured with a plurality of data objects and a mapping between at least one of the data objects and a multicast address. The method comprises detecting that the constrained device should send a notification (104) and determining a topic to which the notification relates (106). The method further comprises, if the topic corresponds to a data object, retrieving the data object to which the topic corresponds (110), retrieving a mapped multicast address corresponding to the data object (112), and posting the notification to the retrieved multicast address (118). Also disclosed is a method (300) for managing a constrained device within a network, the constrained device being configured with a plurality of data objects. The method comprises configuring the device with a mapping between at least one of the data objects and a multicast address (302), instructing the device to publish notifications relating to a data object by posting the notifications to a mapped multicast address corresponding to the data object (304), and instructing the device to subscribe to notifications relating to a data object by listening to a mapped multicast address corresponding to the data object (306).