Antenna switching circuit and electronic equipment

Abstract

The invention provides an antenna switching circuit and electronic equipment. The switching circuit comprises a radio frequency processing module, a radio frequency front-end module, a first switching module and an antenna module, wherein the radio frequency processing module receives a first radio frequency signal from an external circuit, processes the first radio frequency signal according to a loss value of the first switching module to generate a second radio frequency signal, and transmits the second radio frequency signal to the first switching module; the first switching module is used for selecting a radio frequency channel electrically connected with the radio frequency processing module from a plurality of radio frequency channels in the radio frequency processing module and transmitting a second radio frequency signal to one of the plurality of radio frequency channels; the radio frequency front end module receives the second radio frequency signal transmitted by the first switching module, processes the second radio frequency signal to generate a third radio frequency signal and transmits the third radio frequency signal to the antenna module; the antenna module comprises a plurality of antennas, and the antenna module receives the third radio frequency signal transmitted by the radio frequency front end module and sends the third radio frequency signal outwards.

Description

[0001] This application is a divisional application, the application number of the original application is 201910573283.1, the original application date is June 28, 2019, and the entire contents of the original application are incorporated into this application by reference. technical field [0002] The present application relates to wireless communication technologies, and in particular, to an antenna switching circuit and electronic equipment. Background technique [0003] The 5G network architecture includes two independent networking (Stand Alone, SA) and independent networking (Non-Stand Alone, NSA) combined with 4G network. SA refers to the new 5G network, including new base stations, backhaul links and core networks. While introducing new network elements and interfaces, SA will also adopt new technologies such as network virtualization and software-defined networks on a large scale, and combine them with 5G New Radio (NR). The technical challenges facing interoperab...

AI Technical Summary

Problems solved by technology

In the NSA scenario, 4G signals need to occupy one transmission channel, and 5G signals only have one transmission channel; at this time, it is more common to adopt the antenna mode design of One Transmit Two Receive (1T2). (Power Amplifier, PA) and then add a switch to realize the one-transmit-four-receive (One TransmitFour Receive, 1T4R) antenna mode switching. The existing technology will increase the front-end loss of the RF channel and the complexity of the board-level design.

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