Information terminal and communication method for reducing d2d signaling overhead and spectrum resource interference

Abstract

The invention relates to an information terminal for reducing D2D signaling overhead and spectrum resource interference and a communication method thereof. Firstly, a D2D server is implanted into a mobile terminal to be a public server. Secondly, the mobile terminal is implanted into a mobile phone kernel by using an SDN local controller. Finally, a forwarding entity Open vSwitch virtual switch with a forwarding function and a wireless resource mapping device of a wireless resource mapping of mobile equipment responsible for D2D communication are embedded into the mobile terminal. The number of interactions of signaling and delay between the mobile terminal and a network terminal can be effectively reduced, at the same time, the interference between a D2D user and a D2D user, between D2D users in WiFi connection, between a D2D user in a WiFi connection and a cellular network user, and between the D2D user and the cellular network user is effectively avoided, and the while the utilization rate of a spectrum resource is improved while the spectrum resource interference is reduced.

Description

technical field [0001] The present invention relates to the field of mobile communication technology and wireless communication technology, and relates to a device-to-device communication (D2D, device-to-device communication) technology that can reduce signaling overhead and An information terminal that reduces spectrum resource interference during communication. Background technique [0002] With the popularization and diversification of smart terminals, the explosive growth of mobile users and multimedia services has caused problems such as service overload and spectrum resources are on the verge of scarcity. Therefore, how to effectively improve the efficiency of spectrum resources has become one of the key issues in 5G communication research, and D2D based on proximity services, which can greatly improve spectrum efficiency, has also attracted the attention of many scholars at home and abroad. RAN1 conducts research on the integration of D2D technology and cellular acce...

AI Technical Summary

Problems solved by technology

[0007] First, spectrum resources are scarce, and the sharing of spectrum resources in heterogeneous networks will cause great interference between D2D users themselves and between D2D users and cellular users;

[0008] Second, low latency, energy efficiency, and scalability are crucial to 5G networks, and ultra-dense heterogeneous networks increase coverage density and heavy coverage areas, and large-scale simultaneous access of D2D users will result in high signaling overhead and Extended end-to-end latency;

[0009] Third, mobile users in D2D communication cannot be authorized under non-cellular networks

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