Service layer interworking using MQTT protocol

A node comprising a processor and a memory, the node further including computer-executable instructions stored in the memory of the node which, when executed by the processor of the node, cause the node to:

• send a publish request to a server that uses a predetermined topic filter parameter related to a request for an application identifier;
• receive a message from the server that includes an assigned application name as payload;
• and
• send a subscription request to the server including the assigned application name as part of a topic filter.

A node comprising a processor and a memory, the node further including computer-executable instructions stored in the memory of the node which, when executed by the processor of the node, cause the node to:

• receive a subscribe request from an application with a topic filter indicating a first middle node and the application;
• send a subscribe request to a server at an infrastructure node for a topic with the topic filter indicating the infrastructure node;
• and
• receive a subscribe request from the server at the infrastructure node for the topic with the topic filter indicating the infrastructure node, wherein messages are forwarded through the first middle node between the application and the infrastructure node using the topic at the first middle node and the infrastructure node.

A method for use by a node, wherein the node comprises a processor and memory, and wherein the node further includes computer-executable instructions stored in the memory which, when executed by the processor, perform functions of a method comprising:

• receiving a publish request from an application that uses a predetermined topic filter parameter related to a request for an application identifier;
• in response to the predetermined topic filter parameter, publishing a message for a registrar that includes a temporary client identifier (ID);
• receiving a message from the registrar that includes an assigned application name as payload;
• providing the assigned application name to the application;
• and
• receiving a subscription request from the application including the assigned application name as part of a topic filter.

A method for use by a node, wherein the node comprises a processor and memory, and wherein the node further includes computer-executable instructions stored in the memory which, when executed by the processor, perform functions of a method comprising:

• sending a publish request to a server that uses a predetermined topic filter parameter related to a request for an application identifier;
• receiving a message from the server that includes an assigned application name as payload;
• and
• sending a subscription request to the server including the assigned application name as part of a topic filter.

A method for use by a node, wherein the node comprises a processor and memory, and wherein the node further includes computer-executable instructions stored in the memory which, when executed by the processor, perform functions of a method comprising:

• receiving a subscribe request from an application with a topic filter indicating a first middle node and the application;
• sending a subscribe request to a server at an infrastructure node for a topic with the topic filter indicating the infrastructure node;
• and
• receiving a subscribe request from the server at the infrastructure node for the topic with the topic filter indicating the infrastructure node, wherein messages are forwarded through the first middle node between the application and the infrastructure node using the topic at the first middle node and the infrastructure node.