M2M-Oriented QoS Categorization in Cellular Network

At present, Machine-to-Machine (M2M) communication have become new services with large market potential, and show quite different characters compared with the traditional Human-to-Human (H2H) communications. It is a big challenge to guarantee the Quality of Service (QoS) for M2M services in traditional telecomm. network. This paper focuses on the QoS categorization of M2M services. Based on the analysis of typical M2M use cases in market, a M2M service category is proposed according to traffic characteristics at first. Then, the existing QoS classes for H2H communications is analyzed, and it can be concluded that the QoS categorization of H2H communications is mainly based on delay, because voice is the main service in H2H communication. However, the conversational service is quite few in M2M communications, thus the existing QoS category cannot meet the requirement of M2M services. So a new QoS category with nine classes for M2M services is proposed according to real-time, accuracy and priority. And the characters of each QoS class are also analyzed. Furthermore, the mapping of H2H QoS category and M2M QoS category is also proposed. The proposed new QoS category can meet the QoS requirements of both M2M services and H2H services. And it is a self-contained, universal category method, providing a useful reference to build M2M QoS architecture.