US 12,255,855 B2
Wireless communication method and apparatus, and radio frequency subsystem with local oscillator circuit
Peng Gao, Shanghai (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed on Dec. 23, 2021, as Appl. No. 17/561,204.
Application 17/561,204 is a continuation of application No. PCT/CN2019/093956, filed on Jun. 29, 2019.
Prior Publication US 2022/0116193 A1, Apr. 14, 2022
Int. Cl. H04L 5/14 (2006.01); H04B 1/38 (2015.01); H04B 1/40 (2015.01); H04B 1/403 (2015.01)
CPC H04L 5/14 (2013.01) [H04B 1/40 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A wireless communication apparatus, comprising:
a local oscillator circuit configured to provide a first local oscillator signal;
a radio frequency transmitter coupled to the local oscillator circuit and configured to send a first signal on a first carrier based on the first local oscillator signal;
a radio frequency receiver coupled to the local oscillator circuit and configured to receive a second signal on a second carrier based on a second local oscillator signal, of a same frequency as the first local oscillator signal, provided by the local oscillator circuit; and
a digital frequency converter coupled to the radio frequency transmitter and the radio frequency receiver, configured to provide a digital frequency conversion operation to compensate for a frequency difference between a center frequency of the first carrier and a center frequency of the second carrier.