US 11,870,474 B2
Signal processing apparatus and method, and access network device
Jia Lv, Shanghai (CN); Haizheng Tang, Shanghai (CN); and Ling Guo, Shanghai (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Aug. 9, 2022, as Appl. No. 17/884,157.
Application 17/884,157 is a continuation of application No. 17/360,287, filed on Jun. 28, 2021, granted, now 11,438,020.
Application 17/360,287 is a continuation of application No. PCT/CN2018/124913, filed on Dec. 28, 2018.
Prior Publication US 2022/0385319 A1, Dec. 1, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04B 1/10 (2006.01); H04B 1/00 (2006.01); H04B 7/08 (2006.01); H04B 7/12 (2006.01); H04B 1/30 (2006.01); H03F 3/20 (2006.01)
CPC H04B 1/1081 (2013.01) [H04B 1/0067 (2013.01); H04B 1/0078 (2013.01); H04B 1/1018 (2013.01); H04B 1/30 (2013.01); H04B 7/0837 (2013.01); H04B 7/12 (2013.01); H03F 3/20 (2013.01); H03F 2200/171 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An access network device, wherein the access network device comprises a signal processing apparatus, wherein the signal processing apparatus comprises a power amplification module, a processing module connected to the power amplification module, and a communication module connected to the processing module, and wherein:
the power amplification module comprises a first power amplifier and a second power amplifier;
the processing module comprises:
a first filter connected to the first power amplifier;
a second filter connected to the second power amplifier; and
a combiner connected to the first filter, the second filter, and the communication module;
the first power amplifier is configured to:
perform power amplification on a received first signal to obtain a second signal; and
send the second signal to the first filter;
the first filter is configured to:
receive the second signal sent by the first power amplifier; and
filter the second signal to obtain a first sub-signal and a second sub-signal, wherein the first sub-signal belongs to a first frequency band, and the second sub-signal belongs to a second frequency band;
the second power amplifier is configured to:
perform power amplification on a received third signal to obtain a fourth signal; and
send the fourth signal to the second filter;
the second filter is configured to:
receive the fourth signal sent by the second power amplifier; and
filter the fourth signal to obtain a third sub-signal, the third sub-signal belongs to a third frequency band;
the combiner is configured to:
combine the first sub-signal and the third sub-signal to obtain a first combined signal; and
send the first combined signal and the second sub-signal to the communication module; and
the communication module is configured to:
send the first combined signal by using a first port; and
send the second sub-signal by using a second port.