Method for achieving indoor and outdoor continuous positioning based on 5G active indoor distribution

Abstract

The invention provides a method for achieving indoor and outdoor continuous positioning based on 5G active indoor distribution, and the method comprises the steps: building an active distribution system which comprises a baseband processing unit (BBU), an expansion unit (EU) and a radio remote unit (RU), wherein the baseband processing unit BBU is used for controlling the whole base station system, the expansion unit EU is a radio frequency far-end CPRI data aggregation unit and is used for realizing a communication function between the BBU and the RRU, and the remote radio unit (RU) is a low-power transmitting power unit, achieves a radio frequency signal processing function, and is deployed indoors. Each far-end radio frequency unit is independently distributed with a PRS ID number. Seamless connection and smooth transition between positioning can be achieved in any scene, and finally high-availability and high-precision indoor and outdoor continuous positioning is achieved.

Description

technical field [0001] The invention belongs to the technical field of mobile communication, and in particular relates to a method for realizing indoor and outdoor continuous positioning based on 5G active room division. Background technique [0002] With the development of wireless communication technology and the improvement of data processing capabilities, location-based services have become a potential [0003] As one of the mobile Internet services, whether in indoor or outdoor environments, the demand for quickly and accurately obtaining location information of mobile terminals and providing location services has become increasingly urgent. [0004] There are currently many indoor and outdoor positioning methods, such as satellite positioning, base station positioning, infrared, Bluetooth, ultrasonic, ultra-wideband (UWB), RFID, and Zigbee. However, they have their own limitations and shortcomings, and cannot achieve accurate and effective positioning in different env...

AI Technical Summary

Problems solved by technology

[0009] (3) The propagation of the positioning signal is limited in the case of non-line-of-sight (NLOS), how to design a motion model for this situation, or perform error correction

[0010] (4) Conversion and unification of time and map coordinate systems when different positioning technologies are used for joint positioning

[0011] In addition, although the existing cellular network fusion positioning technology (for example: A-GNSS) can also meet the coverage of indoor scenes, its indoor positioning capability is limited, and with the continuous emergence of 5G business applications, emerging services Location-based services put forward higher requirements. Since this type of LBS-based emerging business is accompanied by people's indoor activities most of the time, it is required that the cellular network should also be able to achieve coverage including indoor environments, so as to provide consistent and seamless indoor and outdoor experience. Positioning connection (generally required to achieve indoor accuracy below 3m)

Images