Abstract: Disclosed are an indoor positioning technique and an information pushing system, method and device based thereon, and a terminal. The system comprises: an intelligent terminal subsystem, an indoor positioning subsystem, an application server subsystem, and a friend-matching server subsystem. The intelligent terminal subsystem has a wireless signal transceiving function and an operating system platform capable of installing an application. The indoor positioning subsystem realizes, on the basis of a wireless signal, and according to a certain algorithm, precise indoor positioning of a user. The application server subsystem is used to receive and perform processing and information submission on service requests. The matching server subsystem is used to push a friend list at a position of the user to a user application list in the intelligent terminal subsystem.

Abstract: The present invention disclosed a unified communication system based on micro base station. The system includes: a micro base station subsystem, a landline telephone network subsystem, an office network subsystem and a communication switching subsystem. The communication switching subsystem receives a voice service request from the micro base station subsystem and the landline telephone network subsystem, sends the voice service request to the micro base station subsystem when a called user in the voice service request is a mobile communication intranet user, sends the voice service request to the landline telephone network subsystem when the called user in the voice service request is a landline telephone network user, receives a service request from the micro base station subsystem, and sends the service request to the office network subsystem.

Abstract: The present invention disclosed a unified communication system based on micro base station. The system includes: a micro base station subsystem, a landline telephone network subsystem, an office network subsystem and a communication switching subsystem. The communication switching subsystem receives a voice service request from the micro base station subsystem and the landline telephone network subsystem, sends the voice service request to the micro base station subsystem when a called user in the voice service request is a mobile communication intranet user, sends the voice service request to the landline telephone network subsystem when the called user in the voice service request is a landline telephone network user, receives a service request from the micro base station subsystem, and sends the service request to the office network subsystem.

Abstract: Disclosed are a wireless communication system and method and an expansion unit of a flat network architecture. The wireless communication system comprises at least one baseband signal source, an expansion unit (EU) and at least one remote radio unit (RU) connected to the EU. By overlapping the baseband signals output by each baseband signal source, remote transmission and wireless coverage of multimode digital signals are achieved, thereby solving the problem of system performance degradation caused by the interaction of radio-frequency analog signal transmission and optical transmission in the prior art.

Abstract: Disclosed are a wireless communication system and method and an expansion unit of a flat network architecture. The wireless communication system comprises at least one baseband signal source, an expansion unit (EU) and at least one remote radio unit (RU) connected to the EU. By overlapping the baseband signals output by each baseband signal source, remote transmission and wireless coverage of multimode digital signals are achieved, thereby solving the problem of system performance degradation caused by the interaction of radio-frequency analogue signal transmission and optical transmission in the prior art.