US 12,218,739 B2
Circuit arrangement and method for identifying a frequency band or channel
Helmut Nast, Berlin (DE); and Ahmed Sayed, Berlin (DE)
Assigned to MOLEX TECHNOLOGIES GMBH, Schönefeld (DE)
Appl. No. 17/782,664
Filed by Molex Technologies GmbH, Schönefeld (DE)
PCT Filed Dec. 18, 2020, PCT No. PCT/EP2020/087059
§ 371(c)(1), (2) Date Jun. 6, 2022,
PCT Pub. No. WO2021/123193, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 10 2019 220 166.0 (DE), filed on Dec. 19, 2019.
Prior Publication US 2023/0013248 A1, Jan. 19, 2023
Int. Cl. H04B 7/15 (2006.01); H04B 7/155 (2006.01)
CPC H04B 7/15528 (2013.01) 16 Claims
OG exemplary drawing
 
1. A circuit arrangement for transmitting a signal, wherein the circuit arrangement comprises:
a signal coupler configured to provide a decoupled uplink or downlink signal;
a reference-signal device configured to provide a reference signal of adjustable frequency;
a mixer configured to mix the decoupled uplink or downlink signal and the reference signal to generate a mixed signal; and
at least one filter device configured to low-pass or bandpass filter the mixed signal so as to generate a filtered signal;
an evaluation device configured to evaluate the filtered signal to identify a frequency band or a channel for transmitting the signal based on the reference signal and at least one signal property of the filtered signal; and
a terminal-device-side interface to transmit the signal based on the identified frequency band or channel for transmission.