A multi-mode mine wireless communication gateway and switching method

Abstract

The invention discloses a multi-mode mine wireless communication gateway and a switching method. The gateway comprises a mixing type coupler, a 4*4 light switch matrix, a summing circuit, a gateway processing unit, an SISO / MIMO access module, a protocol conversion module, a router transfer module, a wireless interface module, a light interface and a bus interface. In the gateway, a WCDMA wireless air interface, a WiFi wireless air interface, a TD-LTE wireless air interface and a WiMAX wireless air interface are configured to output SISO signals and MIMO signals respectively, WCDMA service data, WiFi service data, TD-LTE service data and WiMAX service data after being converted by the protocol conversion module are transferred to corresponding heterogeneous networks through the router transfer module, and inter-network switching is triggered. According to the multi-mode mine wireless communication gateway, a multi-mode working mode is adopted, channel capacity is large, disturbance resistance is high, the requirements for a mining specific service environment and safety are met, and the gateway is suitable for mobile communication and mobile monitoring of the heterogeneous networks like the WiMAX network, the WiFi network, the TD-LTE network and the WiMAX network under mines, and quick switching of mine underground mobile terminals in the heterogeneous networks is guaranteed.

Description

technical field [0001] The patent of the present invention relates to a communication device suitable for a coal mine underground mobile communication system, in particular to a multi-mode mine wireless communication gateway and a switching method, belonging to the field of communication technology. Background technique [0002] With the development of coal mine information construction and the increasing demand for mine communication services, a variety of wireless access networks gradually coexist underground, such as mine WCDMA, WiFi, UWB, WiMAX, and TD-LTE. The communication network together constitutes a complex mine heterogeneous wireless network environment. However, on the one hand, due to the simultaneous coexistence of multi-mode and multi-band wireless communication networks in mines, the network coverage of existing mine mobile communication systems is limited, and it is difficult to meet the multi-mode communication needs of underground mobile users and the mult...

AI Technical Summary

Problems solved by technology

The traditional handover methods generally adopt hard handover and soft handover based on the measurement of the received signal strength of the mobile terminal, and transmit diversity handover based on site selection. Let the base station be interactively notified to complete the handover task, and the distributed multi-antenna system has the characteristics of low system power and uniform field strength coverage. The handover method using the wireless signal strength received by the underground mobile terminal as the handover parameter is used to complete the antenna selection and handover of the base station. Wireless resource management makes the measurement process of the underground mobile terminal and the high complexity and transmission delay switching method brought about by multiple signaling transmissions unable to be applied to the multi-antenna distributed mine mobile communication system, and it is also difficult to meet the needs of mine heterogeneity. Antenna Selection Requirements and Switching Requirements for Wireless Networks

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