Research on Enhanced Mobile Core Network Technology Supporting NB-IoT High Orbit Satellite IMS Voice Calls

With the rapid development and promotion of direct satellite services for mobile phones, the demand for voice communication among satellite terminal users is continuously increasing. Currently, in areas without ground base station signal coverage, voice services rely on high orbit satellites, which have very limited bandwidth. There is an urgent need to enhance core network … Read more

What You May Not Know About MQTT

What You May Not Know About MQTT

MQTT (Message Queuing Telemetry Transport) is a lightweight publish/subscribe protocol that is indeed very suitable for IoT devices operating under low bandwidth communication conditions. The following sections provide a detailed introduction from multiple perspectives: Basic Principles of the Protocol MQTT is based on a client-server (i.e., broker) publish/subscribe model. In this model, client devices can … Read more

In-Depth Analysis of MQTT: Providing Real-Time and Reliable Messaging Services

In-Depth Analysis of MQTT: Providing Real-Time and Reliable Messaging Services

In previous articles, such as the “Aizhi Wish Tree from 0 to Perfection Series” and the communication methods between Raspberry Pi and EdgerOS, we often mentioned a “lightweight” communication protocol, which is MQTT. This article will guide everyone to understand the general content of MQTT and the MQTT module of JSRE.1Introduction to MQTT01Advantages of MQTTMQTT … Read more