US 12,445,163 B2
Signal communication terminal and signal communication system
Songlin Zhou, Shenzhen (CN); Yanlin Xie, Shenzhen (CN); and Yanwei Wang, Shenzhen (CN)
Assigned to SHENZHEN HUAPTEC CO., LTD, Shenzhen (CN)
Filed by SHENZHEN HUAPTEC CO., LTD, Shenzhen (CN)
Filed on Sep. 14, 2022, as Appl. No. 17/944,200.
Claims priority of application No. 202210926652.2 (CN), filed on Aug. 3, 2022.
Prior Publication US 2024/0048172 A1, Feb. 8, 2024
Int. Cl. H04B 1/44 (2006.01)
CPC H04B 1/44 (2013.01) 9 Claims
OG exemplary drawing
 
1. A signal communication terminal comprising:
a plurality of signal enhancement branches each including a first antenna, a second antenna, a first switching circuit, a second switching circuit, and a first signal processing circuit; and
a routing circuit connected with each of the signal enhancement branches to receive an uplink signal and to send a downlink signal, wherein the routing circuit outputs a corresponding first switching signal and second switching signal according to the downlink signal;
wherein, the first switching circuit is connected with each of the first antenna and the first signal processing circuit; the second switching circuit is connected with each of the first signal processing circuit and the routing circuit; and the first signal processing circuit is connected with the second antenna;
wherein, the first antenna is configured to receive a first downlink signal and send a first uplink signal;
wherein, the second antenna is configured to send the first downlink signal and receive the first uplink signal;
wherein, the first switching circuit is configured to switch a path between the first switching circuit and the second switching circuit according to the first switching signal;
wherein, the second switching circuit is configured to switch the path between the first switching circuit and the second switching circuit according to the second switching signal so as to work together with the first switching circuit to:
turn on at least one of a path among the first switching circuit, the first signal processing circuit, and the second switching circuit and a path among the first switching circuit, the first signal processing circuit, and the second antenna so as to output at least one of the first downlink signal after conversion and amplification processing and the first uplink signal after conversion and amplification processing, in response to a strength of the first downlink signal being lower than a preset first signal strength; and
turn on a path between the first switch circuit and the second switch circuit so as to directly output at least one of the first downlink signal and the first uplink signal, in response to the strength of the first downlink signal being higher than or equal to the preset first signal strength;
wherein the first antenna is a BS (base station) downlink diversity antenna, and the second antenna is a BS downlink diversity antenna; wherein the first signal processing circuit includes a filter 1, an amplifier 5, a power divider 4, an attenuator 5 and a filter 2, where an input terminal of the filter 1 is a first terminal of the first signal processing circuit, an output terminal of the filter 1 is connected with an input terminal of the amplifier 5, an input terminal of the power divider 4 is connected with an output terminal of the amplifier 5, a first output terminal of the power divider 4 is connected with an input terminal of the attenuator 5, a second output terminal of the power divider 4 is the second terminal of the first signal processing circuit, an output terminal of the attenuator 5 is connected with an input terminal of the filter 2, and an output terminal of the filter 2 is the third terminal of the first signal processing circuit.