US 9,814,047 B2 | ||
Multiband signal processing apparatus and method | ||
Xiangming Kong, Shenzhen (CN) | ||
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN) | ||
Filed by Huawei Technologies Co., Ltd., Shenzhen, Guangdong (CN) | ||
Filed on Feb. 10, 2017, as Appl. No. 15/429,658. | ||
Application 15/429,658 is a continuation of application No. PCT/CN2014/084079, filed on Aug. 11, 2014. | ||
Prior Publication US 2017/0156150 A1, Jun. 1, 2017 | ||
Int. Cl. H04B 1/26 (2006.01); H04W 72/04 (2009.01); H04W 52/02 (2009.01); H04L 12/26 (2006.01) |
CPC H04W 72/0453 (2013.01) [H04L 43/16 (2013.01); H04W 52/0203 (2013.01)] | 11 Claims |
1. A multiband signal processing apparatus, comprising:
a multi-tone local oscillator signal transmission channel comprising a band-pass filter and a frequency mixer;
a multi-tone local oscillator signal generating unit configured to:
generate a multi-tone local oscillator signal according to frequency response information of at least one device comprised
in the multi-tone local oscillator signal transmission channel, and
transmit the multi-tone local oscillator signal to the band-pass filter;
wherein the band-pass filter is configured to receive and filter the generated multi-tone local oscillator signal to generate
a filtered multi-tone local oscillator signal; and
wherein the frequency mixer is configured to frequency mix a multiband signal and the multi-tone local oscillator signal,
in a preset area that comprises a location in which a non-zero spectral component of the multiband signal is located, the
multi-tone local oscillator signal has a non-zero spectral component, and in at least one multiplied frequency of multiple
contiguous multiplied frequencies of a fundamental frequency, the multi-tone local oscillator signal has no non-zero spectral
component.
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