Novel cloud computing network system and method based on SDR

Abstract

The invention discloses a novel cloud computing network system and method based on SDR. The system comprises a programmable soft base station, a distributed cloud computing platform, a user device, a core network and the Internet, wherein the programmable soft base station includes an USRP and a PC; the USRP is connected with the PC and used for completing signal transmitting-receiving, frequency conversion and analog-to-digital conversion; the PC is used for processing signals received from the USRP, and assigning computing tasks to the distributed cloud computing platform; the USRP is composed of a mother board and a daughter board, the daughter board is used for receiving / transmitting radio frequency signals and converting into intermediate frequency signals, and the mother board is used for intermediate frequency sampling and converting the intermediate frequency signals / baseband signals into the baseband signals / the intermediate frequency signals; the distributed cloud computing platform is composed of the plurality of PC connected with one another, shares computing resources, and is used for receiving the computing tasks from the PC of the programmable soft base station and returning computing results to the PC; the user device receives and transmits the signals through the programmable soft base station; and the programmable soft base station communicates with the Internet by the core network.

Description

technical field [0001] The patent of the present invention relates to the field of mobile communication, in particular to a new SDR-based cloud computing network system and its method. Background technique [0002] With the continuous development of wireless communication, more and more wireless access methods have emerged, including femtocell, 3G, LTE, WIFI, WiMAX, etc., and wireless protocols are still evolving. The ASIC hardware is closely integrated, and the signals of different protocols are very different, such as the working frequency band, modulation method, waveform structure, encoding method or encryption method, so the change of the protocol usually requires the replacement of the base station. In current networks, protocol and network density changes are continuous (every few months) (eg number of base stations in an area of ​​a city) to provide high capacity and uniform coverage. However, it is expensive to upgrade base stations or deploy new base stations in t...

AI Technical Summary

Problems solved by technology

First, use the USRP hardware to connect with a general-purpose microprocessor (the following are all described using PC, that is, personal computer as an example) to complete the construction of the soft base station, and combine multiple PC computing resources to form a distributed cloud computing platform. The calculation tasks on a single PC are assigned to the cloud computing platform to complete, theoretically overcome the limitation of CPU processing performance on a single PC, greatly save the signal processing time, thereby solving the problem of low signal processing efficiency of soft base stations, and achieving the goal of improving reliability Program soft base station overall performance targets

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