Methods and Apparatus for Facilitating Real Time Multimedia Communications

A method () for facilitating real time multimedia communications between a constrained device and a multimedia client is disclosed. The method comprises discovering an identity and a multimedia capability of a constrained device (), 5 receiving, from a multimedia client, a request for multimedia content from the constrained device (), mapping information from the request to a message format used by the constrained device (), and forwarding the mapped information to the constrained device (). Also disclosed is a method () performed by a constrained device having a multimedia capability. The method comprises registering 10 an identity of the constrained device and metadata about the multimedia capability of the constrained device with a resource directory (). 135-. (canceled)36. A method for facilitating real time multimedia communications between a constrained device and a multimedia client , the method comprising:discovering an identity and a multimedia capability of a constrained device;receiving, from a multimedia client, a request for multimedia content from the constrained device;mapping information from the request to a message format used by the constrained device; andforwarding the mapped information to the constrained device.37. A method as claimed in claim 36 , further comprising:receiving, from the constrained device, an acknowledgement of the mapped information;mapping information from the acknowledgement to a message format used by the multimedia client; andtransmitting to the multimedia client the mapped information from the acknowledgement and a discovered multimedia capability of the constrained device.38. A method as claimed in claim 36 , wherein the real time multimedia communications conform to the WebRTC standard.39. A method as claimed in claim 36 , wherein the message format used by the constrained device is a Constrained Application Protocol (CoAP) message format.40. A method as claimed in claim 36 , wherein the message format used by the ...

Bootstrapping Devices on a Network

Methods for operating a device and for managing bootstrapping of devices are disclosed. The method (100) for operating a device comprises computing (102) a derivative of a secret shared between the device and a server entity of a network, generating (104) a temporary bootstrap URI by combining at least a part of the computed derivative with a static bootstrap URI for the network, and sending (106) a bootstrap request to the temporary bootstrap URI. The method for managing bootstrapping of devices comprises generating temporary bootstrap URIs corresponding to devices operable to connect to a network, and updating a network DNS registry to map the generated temporary bootstrap URIs to the IP address of at least one of a bootstrap server instance reachable via the network and/or a bootstrap load balancer. Also disclosed are a device, a bootstrap load balancer, a bootstrap server, and a computer program.

Apparatus and method for managing client devices

A relay module (30) for use in a lightweight machine to machine (LWM2M) communication network comprises a first interface module (31) for interfacing with one or more server devices, and a second interface module (33) for interfacing with a plurality of client devices. A processing unit (35) is adapted to establish at least one group object instance, wherein each group object instance is used to control communication between a server device and a group of client devices.

Methods and apparatus for facilitating real time multimedia communications

A method (100) for facilitating real time multimedia communications between a constrained device and a multimedia client is disclosed. The method comprises discovering an identity and a multimedia capability of a constrained device (110), 5 receiving, from a multimedia client, a request for multimedia content from the constrained device (120), mapping information from the request to a message format used by the constrained device (130), and forwarding the mapped information to the constrained device (140). Also disclosed is a method (300) performed by a constrained device having a multimedia capability. The method comprises registering 10 an identity of the constrained device and metadata about the multimedia capability of the constrained device with a resource directory (310).

First communication device, network device and methods therein for indentifying at least one second communication device providing a semantic representation

A method performed by a first communication device, for identifying at least one second communication device each second communication device providing a respective semantic representation. The first communication device and a number of second communication devices operate in a communications network. The first communication device decides (201) a target semantic representation and decides (202) a threshold related to a tolerated semantic distance between a semantic representation and the target semantic representation. The first communication device sends (203) to one or more network devices in the communications network, a request for any one or more second communication devices out of the number of second communication devices, providing a semantic representation having a semantic distance below the decided threshold. The first communication device then receives (204) from any of the one or more network devices a message identifying at least one second communication device providing ...

Method for setting up a secure connection between LWM2M devices

A method performed in a client device for setting up a connection with a server device is disclosed. The client device and the server device support a Light Weight Machine to Machine, LWM2M protocol. The method comprises setting up one of a Datagram Transport Layer Security, DTLS, and a Transport Layer Security, TLS, connection with a bootstrap server; performing a bootstrapping procedure with the bootstrap server; receiving, from the bootstrap server, a session ticket and a session key; and setting up the connection to the server device as one of a DTLS and TLS session resumption procedure using the received session ticket and session key. A method in a bootstrap server is also provided, and client device, bootstrap server, computer programs and computer program products are also disclosed.

Management of communication between M2M device and M2M server with finite state transitions created by the M2M device

A method performed by a machine-to-machine, M2M, server for managing communication with a M2M device is disclosed. The method comprising configuring the M2M device with a finite number of predetermined states and predetermined transitions for moving the M2M device into one of its predetermined states, and sending a message to the M2M device for executing at least one of the predetermined transitions.

Method, network node and terminal device in a communication network

A method in a network node of a communication network configured to manage command messages from at least one Machine Type Communication, MTC, device manager intended for an MTC device, comprises receiving command messages from the at least one MTC device manager, step (201). One or more command messages are merged into an MTC device message that comprises at least one command message, step (203). Originator information is associated with each command message in the MTC device message, step (205). The MTC device message is sent to an MTC device. The network node may further perform the steps of receiving an MTC device message from an MTC device, the MTC device message comprising at least one response message, step (301). The network node determines from receiver information contained in the MTC device message which one or more MTC device managers are to receive each of the at least one response message, step (303), and sends the at least one response message to each of the determined MTC ...

Communications with constrained devices

A standardised method is provided for enabling remote script execution on a constrained device. The method comprises transmitting a first Lightweight Machine-to-Machine, LWM2M, protocol message from a LWM2M protocol server to a LWM2M protocol client on the constrained device. A content of the first LWM2M message is such that the LWM2M protocol client has access to a script. The method also comprises transmitting information about execution of the script from the LWM2M protocol server to the LWM2M protocol client in a LWM2M protocol message.

Bootstrapping devices on a network

Methods for operating a device and for managing bootstrapping of devices are disclosed. The method (100) for operating a device comprises computing (102) a derivative of a secret shared between the device and a server entity of a network, generating (104) a temporary bootstrap URI by combining at least a part of the computed derivative with a static bootstrap URI for the network, and sending (106) a bootstrap request to the temporary bootstrap URI. The method for managing bootstrapping of devices comprises generating temporary bootstrap URIs corresponding to devices operable to connect to a network, and updating a network DNS registry to map the generated temporary bootstrap URIs to the IP address of at least one of a bootstrap server instance reachable via the network and/or a bootstrap load balancer. Also disclosed are a device, a bootstrap load balancer, a bootstrap server, and a computer program.

Bootstrapping Devices on a Network

Methods for operating a device and for managing bootstrapping of devices are disclosed. The method (100) for operating a device comprises computing (102) a derivative of a secret shared between the device and a server entity of a network, generating (104) a temporary bootstrap URI by combining at least a part of the computed derivative with a static bootstrap URI for the network, and sending (106) a bootstrap request to the temporary bootstrap URI. The method for managing bootstrapping of devices comprises generating temporary bootstrap URIs corresponding to devices operable to connect to a network, and updating a network DNS registry to map the generated temporary bootstrap URIs to the IP address of at least one of a bootstrap server instance reachable via the network and/or a bootstrap load balancer. Also disclosed are a device, a bootstrap load balancer, a bootstrap server, and a computer program.

Communications with Constrained Devices

A standardised method is provided for enabling remote script execution on a constrained device. The method comprises transmitting a first Lightweight Machine-to-Machine, LWM2M, protocol message from a LWM2M protocol server to a LWM2M protocol client on the constrained device. A content of the first LWM2M message is such that the LWM2M protocol client has access to a script. The method also comprises transmitting information about execution of the script from the LWM2M protocol server to the LWM2M protocol client in a LWM2M protocol message.

Methods and apparatus for operating and managing a constrained device within

A method for operating a constrained device within a network is disclosed. The constrained device is configured with a plurality of data objects and a mapping between at least one of the data objects and a multicast address. The method includes detecting that the constrained device should send a notification 104 and determining a topic to which the notification relates. The method further includes, if the topic corresponds to a data object, retrieving the data object to which the topic corresponds, retrieving a mapped multicast address corresponding to the data object, and posting the notification to the retrieved multicast address.

METHOD FOR SETTING UP A SECURE CONNECTION BETWEEN LWM2M DEVICES

A method performed in a client device for setting up a connection with a server device is disclosed. The client device and the server device support a Light Weight Machine to Machine, LWM2M protocol. The method comprises setting up one of a Datagram Transport Layer Security, DTLS, and a Transport Layer Security, TLS, connection with a bootstrap server; performing a bootstrapping procedure with the bootstrap server; receiving, from the bootstrap server, a session ticket and a session key; and setting up the connection to the server device as one of a DTLS and TLS session resumption procedure using the received session ticket and session key. A method in a bootstrap server is also provided, and client device, bootstrap server, computer programs and computer program products are also disclosed. 1. A method performed in a client device for setting up a connection with a server device , the client device and the server device supporting a Light Weight Machine to Machine , LWM2M protocol , the method comprising:setting up one of a Datagram Transport Layer Security, DTLS, and a Transport Layer Security, TLS, connection with a bootstrap server,performing a bootstrapping procedure with the bootstrap server,receiving, from the bootstrap server, a session ticket and a session key, andsetting up the connection to the server device as one of a DTLS and TLS session resumption procedure using the received session ticket and session key.2. The method as claimed in claim 1 , comprising indicating claim 1 , during the bootstrapping procedure claim 1 , that the bootstrap server is to set up one the DTLS and TLS connection to the server device on behalf of the client device.3. The method as claimed in claim 2 , wherein the indicating comprises delegating an identity of the client device to the bootstrap server.4. The method as claimed in claim 2 , comprising generating a temporary identity of the client device and using the generated temporary identity in the indicating.5. A computer ...

Apparatus and Method For Managing Client Devices

A relay module () for use in a lightweight machine to machine (LWM2M) communication network comprises a first interface module () for interfacing with one or more server devices, and a second interface module () for interfacing with a plurality of client devices. A processing unit () is adapted to establish at least one group object instance, wherein each group object instance is used to control communication between a server device and a group of client devices. 1. A relay module for use in a lightweight machine to machine communication network , the relay module comprising:a first interface for interfacing with a first service device;a second interface for interfacing with a plurality of client devices; anda processing unit adapted to establish a group object instance, wherein the group object instance is used to control communication between the first server device and a group of client devices.2. The relay module of claim 1 , wherein the processing unit is adapted to send a register request message via the first interface to the first server device requesting to register with the first server device.3. The relay module of wherein claim 2 , following a successful registration with the first server device claim 2 , the relay module is adapted to receive server information comprising at least one of:a list of the capabilities of the first server device; anda list of client requirements for the first server device to provide service to a client.4. The relay module of claim 1 , wherein the processing unit is adapted to receive claim 1 , via the first interface module claim 1 , server information comprising at least one of:a list of the capabilities of the first server device;a list of client requirements for the first server device to provide service to a client; andinformation for creating a group object for managing a group of clients.5. The relay module of claim 1 , whereinthe first interface is operable to interface with a plurality of server devices comprising ...

FIRST COMMUNICATION DEVICE, NETWORK DEVICE AND METHODS THEREIN FOR INDENTIFYING AT LEAST ONE SECOND COMMUNICATION DEVICE PROVIDING A SEMANTIC REPRESENTATION

A method performed by a first communication device, for identifying at least one second communication device each second communication device providing a respective semantic representation. The first communication device and a number of second communication devices operate in a communications network. The first communication device decides () a target semantic representation and decides () a threshold related to a tolerated semantic distance between a semantic representation and the target semantic representation. The first communication device sends () to one or more network devices in the communications network, a request for any one or more second communication devices out of the number of second communication devices, providing a semantic representation having a semantic distance below the decided threshold. The first communication device then receives () from any of the one or more network devices a message identifying at least one second communication device providing a semantic representation according to the request. 1. A method performed by a first communication device , for identifying at least one second communication device , each second communication device providing a respective semantic representation , which first communication device and a number of second communication devices operate in a communications network , the method comprising:deciding a target semantic representation;deciding a threshold related to a tolerated semantic distance between a semantic representation and the target semantic representation;sending to one or more network devices in the communications network, a request for any one or more second communication devices out of the number of second communication devices, providing a semantic representation having a semantic distance below the decided threshold; andreceiving from any of the one or more network devices, a message identifying at least one second communication device providing a semantic representation according to the ...

Methods and apparatus for lightweight machine to machine communication

A method for operating a system comprising a LwM2M client node, a LwM2M master client node and a LwM2M management server. The method includes the LwM2M master client node sending to the LwM2M management server a request to register the LwM2M client node, the LwM2M management server confirming registration of the LwM2M client node to the LwM2M master client node, and the LwM2M management server and LwM2M client node exchanging application messages. Also disclosed are a LwM2M master client node, LwM2M server and LwM2M client node, and methods of operation of a LwM2M master client node, LwM2M server and LwM2M client node.

Management of Communication Between M2M Device and M2M Server

A method performed by a machine-to-machine, M2M, server for managing communication with a M2M device is disclosed. The method comprising configuring the M2M device with a finite number of predetermined states and predetermined transitions for moving the M2M device into one of its predetermined states, and sending a message to the M2M device for executing at least one of the predetermined transitions. 15-. (canceled)6. A machine-to-machine (M2M) server for managing communication with a M2M device , the M2M server comprising;a memory; anda processor coupled to the memory, wherein the M2M server is configured to:configure the M2M device with a finite number of predetermined states and predetermined transitions for changing between the states; andsend a message to the M2M device for executing at least one of the predetermined transitions.7. The M2M server according to claim 6 , wherein each state is associated with a plurality of configurable elements.8. The M2M server according to claim 6 , wherein the M2M server is further configured to define the predetermined states and transitions and create instructions associated with each state and transition so as to configure the M2M device with said states and transitions.9. The M2M server according to claim 6 , further comprising a receiver for receiving instructions for the predetermined states and transitions from a node.10. The M2M server according to claim 7 , wherein the M2M server is further configured to send instructions to the M2M device to create claim 7 , delete or modify a state or a transition so as to configure the M2M device.1119-. (canceled)20. A machine-to-machine (M2M) device for communicating with a M2M server claim 7 , the M2M device comprising:a receiver for receiving commands from the M2M server to configure itself with a finite number of predetermined states and predetermined transitions for moving the M2M device into one of its predetermined states; anda processor for executing the commands so as to ...

Method, network node and terminal device in a communication network

A method in a network node of a communication network configured to manage command messages from at least one Machine Type Communication, MTC, device manager intended for an MTC device, comprises receiving command messages from the at least one MTC device manager, step ( 201 ). One or more command messages are merged into an MTC device message that comprises at least one command message, step ( 203 ). Originator information is associated with each command message in the MTC device message, step ( 205 ). The MTC device message is sent to an MTC device. The network node may further perform the steps of receiving an MTC device message from an MTC device, the MTC device message comprising at least one response message, step ( 301 ). The network node determines from receiver information contained in the MTC device message which one or more MTC device managers are to receive each of the at least one response message, step ( 303 ), and sends the at least one response message to each of the determined MTC device managers, step ( 305 ).

METHODS AND APPARATUS FOR OPERATING AND MANAGING A CONSTRAINED DEVICE WITHIN

A method for operating a constrained device within a network is disclosed. The constrained device is configured with a plurality of data objects and a mapping between at least one of the data objects and a multicast address. The method includes detecting that the constrained device should send a notification and determining a topic to which the notification relates. The method further includes, if the topic corresponds to a data object, retrieving the data object to which the topic corresponds, retrieving a mapped multicast address corresponding to the data object, and posting the notification to the retrieved multicast address. 1. A method for operating a constrained device within a network , 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 comprising:detecting that the constrained device should send a notification;determining a topic to which the notification relates; andresponsive to the topic corresponding to a data object, retrieving the data object to which the topic corresponds;responsive to the topic corresponding to a data object, retrieving a mapped multicast address corresponding to the data object; andresponsive to the topic corresponding to a data object, posting the notification to the retrieved multicast address.2. A method as claimed in claim 1 , further comprising:responsive to the topic corresponding to a property of a controlled device, retrieving a mapped multicast address corresponding to the property; andresponsive to the topic corresponding to a property of a controlled device, posting the notification to the retrieved multicast address.3. A method as claimed in claim 1 , further comprising:associating a Time To Listen, TTL, with the notification when posting the notification.4. A method as claimed in claim 1 , further comprising:receiving a notification on a multicast address to which the constrained device is listening; ...

Methods and apparatus for facilitating real time multimedia communications

Method, network node and terminal device in a communication network

A method in a network node of a communication network configured to manage command messages from at least one Machine Type Communication, MTC, device manager intended for an MTC device, comprises receiving command messages from the at least one MTC device manager, step (201). One or more command messages are merged into an MTC device message that comprises at least one command message, step (203). Originator information is associated with each command message in the MTC device message, step (205). The MTC device message is sent to an MTC device. The network node may further perform the steps of receiving an MTC device message from an MTC device, the MTC device message comprising at least one response message, step (301). The network node determines from receiver information contained in the MTC device message which one or more MTC device managers are to receive each of the at least one response message, step (303), and sends the at least one response message to each of the determined MTC device managers, step (305).

Control of access to resources of data objects

Nodes and methods for controlling access to resources of data objects exposed by at least one computing device is disclosed. The data objects conform to an object model that specifies, for a given object name of a data object, one or more resources which may be associated with instances of a data object of that object name. An access control node is configured to receive a request to access a resource of a data object instance (110), determine a compatibility of the request with an access rule (120) and perform at least one of allowing or denying the request in accordance with the determined compatibility (130). The request to access a resource of the data object instance identifies the resource at an identification abstraction level that specifies how the resource may be accessed, and the access rule specifies one or more limitations on access to resources at a semantic abstraction level that indicates a semantic content of a data object or resource. Determining a compatibility of the request with an access rule comprises using a mapping between the identification abstraction level and the semantic abstraction level (120a).

Methods and apparatus for operating and managing a constrained device within

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).

Method for setting up a secure connection between lwm2m devices

Bootstrapping devices on a network

Methods for operation of a device, bootstrap server and network node

Methods for operation of a device, Bootstrap server and Network node Methods for operating a device (100, 200), a Bootstrap server (300) and a network 5 node (400) are disclosed. The method (100) for operating a device comprises requesting a Bootstrap data object from a node reachable via the network, the Bootstrap data object comprising an identification of a device management server (110), receiving a Bootstrap data object from a node reachable via the network (120), configuring a data object on the device in accordance with the received Bootstrap data 10 object (150), and requesting registration with the device management server identified in the received Bootstrap data object (160). Also disclosed are a device (700, 800), a Bootstrap server (900, 1000) and a network node (1100, 1200). 15

Categorisation of resources using lightweight machine-to machine protocol

A method (300) of operating a server node implementing a Lightweight Machine-to-Machine, LWM2M protocol and a server node are disclosed. The method comprises obtaining (304) sensor data comprising values of a metric measured in an environment by a client node implementing the LWM2M protocol, wherein the sensor data further comprises a metric identifier; based on the metric identifier, determining (306) a controllability parameter value representing an extent of controllability of the metric by a reinforcement learning agent operating on the environment; annotating (308) the sensor data with the determined controllability parameter value; and providing (310) the annotated sensor data for training the machine learning model simulating the environment.

Categorisation of resources using lightweight machine-to machine protocol

A method (300) of operating a server node implementing a Lightweight Machine-to-Machine, LWM2M protocol and a server node are disclosed. The method comprises obtaining (304) sensor data comprising values of a metric measured in an environment by a client node implementing the LWM2M protocol, wherein the sensor data further comprises a metric identifier; based on the metric identifier, determining (306) a controllability parameter value representing an extent of controllability of the metric by a reinforcement learning agent operating on the environment; annotating (308) the sensor data with the determined controllability parameter value; and providing (310) the annotated sensor data for training the machine learning model simulating the environment.

Communications with constrained devices

A standardised method is provided for enabling remote script execution on a constrained device. The method comprises transmitting a first Lightweight Machine-to-Machine, LWM2M, protocol message from a LWM2M protocol server to a LWM2M protocol client on the constrained device. A content of the first LWM2M message is such that the LWM2M protocol client has access to a script. The method also comprises transmitting information about execution of the script from the LWM2M protocol server to the LWM2M protocol client in a LWM2M protocol message.

Bootstrapping devices on a network

Methods for operating a device and for managing bootstrapping of devices are disclosed. The method (100) for operating a device comprises computing (102) a derivative of a secret shared between the device and a server entity of a network, generating (104) a temporary bootstrap URI by combining at least a part of the computed derivative with a static bootstrap URI for the network, and sending (106) a bootstrap request to the temporary bootstrap URI. The method for managing bootstrapping of devices comprises generating temporary bootstrap URIs corresponding to devices operable to connect to a network, and updating a network DNS registry to map the generated temporary bootstrap URIs to the IP address of at least one of a bootstrap server instance reachable via the network and/or a bootstrap load balancer. Also disclosed are a device, a bootstrap load balancer, a bootstrap server, and a computer program.

Root canal treatment filling paste including boron

The invention relates to a root canal filling paste including boron that will eliminate many problems, especially with antibacterial properties, for a long time with controlled release to the basic chemical formula formed by alumina, zirconium, bioactive glass, composite and hydroxyapatite compounds.

Management of communication between m2m device and m2m server

A method performed by a machine-to-machine, M2M, server for managing communication with a M2M device is disclosed. The method comprising configuring the M2M device with a finite number of predetermined states and predetermined transitions for moving the M2M device into one of its predetermined states, and sending a message to the M2M device for executing at least one of the predetermined transitions.

Bor İçerikli Diş Kök Kanal Tedavisi Dolgu Patı

Buluş, alümina, zirkonyum, biyoaktif cam, kompozit ve hidroksiapatit bileşiklerinin oluşturduğu temel kimyasal formüle kontrollü salınım ile uzun süreli olarak başta antibakteriyal özelliği olmak üzere pek çok sorunu giderecek bor içerikli kanal dolgu patı ile ilgilidir.

Bor İçerikli Diş Kök Kanal Tedavisi Dolgu Patı

Buluş, alümina, zirkonyum, biyoaktif cam, kompozit ve hidroksiapatit bileşiklerinin oluşturduğu temel kimyasal formüle kontrollü salınım ile uzun süreli olarak başta antibakteriyal özelliği olmak üzere pek çok sorunu giderecek bor içerikli kanal dolgu patı ile ilgilidir.

Root canal treatment filling paste including boron

The invention relates to a root canal filling paste including boron that will eliminate many problems, especially with antibacterial properties, for a long time with controlled release to the basic chemical formula formed by alumina, zirconium, bioactive glass, composite and hydroxyapatite compounds.

Bootstrapping devices on a network

Methods for operating a device and for managing bootstrapping of devices are disclosed. The method (100) for operating a device comprises computing (102) a derivative of a secret shared between the device and a server entity of a network, generating (104) a temporary bootstrap URI by combining at least a part of the computed derivative with a static bootstrap URI for the network, and sending (106) a bootstrap request to the temporary bootstrap URI. The method for managing bootstrapping of devices comprises generating temporary bootstrap URIs corresponding to devices operable to connect to a network, and updating a network DNS registry to map the generated temporary bootstrap URIs to the IP address of at least one of a bootstrap server instance reachable via the network and/or a bootstrap load balancer. Also disclosed are a device, a bootstrap load balancer, a bootstrap server, and a computer program.

Lwm2m client device and server device

A Lightweight Machine to Machine (LwM2M) client device (800) is disclosed. The client device comprises processing circuitry configured to cause the LwM2M client device to expose, to a LwM2M server, a first resource of a LwM2M management data object that is hosted at the LwM2M client device, wherein a value of the first resource indicates when the LwM2M client device will next enter an awake mode of operation following a period of time spent in a sleep mode of operation (110). The processing circuitry is also configured to cause the LwM2M client device to enter a sleep mode of operation (120) and enter an awake mode of operation at a time corresponding to a value of the first resource (130). Also disclosed are a LwM2M server device (900), and methods (100, 300) performed by a LwM2M client and a LwM2M server.

Communications with constrained devices

A standardised method is provided for enabling remote script execution on a constrained device. The method comprises transmitting a first Lightweight Machine-to-Machine, LWM2M, protocol message from a LWM2M protocol server to a LWM2M protocol client on the constrained device. A content of the first LWM2M message is such that the LWM2M protocol client has access to a script. The method also comprises transmitting information about execution of the script from the LWM2M protocol server to the LWM2M protocol client in a LWM2M protocol message.

Registering a resource in a resource directory host

It is provided a method for registering a resource in a resource directory host, the method being performed in a group determiner device. The method comprises: obtaining at least part of a registration request, the registration request being a request to register an endpoint device in a resource directory host, wherein the endpoint device is a constrained application protocol, CoAP, device; determining, based on the at least part of the registration request, a group indicator; and causing a registration for the endpoint device to contain the group indicator. Corresponding group determiner device, resource directory host, computer program, and computer program product are also provided.