Antenna switching circuit and electronic equipment

Abstract

The present application provides an antenna switching circuit and electronic equipment. The switching circuit includes: 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 the first radio frequency signal from an external circuit, according to the first The loss value of a switching module processes the first radio frequency signal 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 to select and process radio frequency from a plurality of radio frequency channels in the radio frequency processing module The module is electrically connected to the radio frequency channel and transmits the second radio frequency signal to one of the 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 the third radio frequency signal And transmit the third radio frequency signal to the antenna module; the antenna module includes a plurality of antennas, the antenna module receives the third radio frequency signal transmitted by the radio frequency front-end module, and sends the third radio frequency signal outward.

Description

technical field [0001] The present application relates to wireless communication technology, and in particular to an antenna switching circuit and electronic equipment. Background technique [0002] The 5G network architecture includes two types: Stand Alone (SA) and Non-Stand Alone (NSA) combined with 4G networks. SA refers to the new 5G network, including new base stations, backhaul links and core networks. While SA introduces new network elements and interfaces, it will also adopt new technologies such as network virtualization and software-defined networks on a large scale, and combine them with 5G new air interface (New Radio, NR). The technical challenges of interoperability will go beyond 3G and 4G systems. NSA refers to the deployment of 5G networks using existing 4G infrastructure. The 5G carrier based on the NSA architecture only carries user data, and its control signaling is still transmitted through the 4G network. Operators can determine upgrade sites and a...

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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