Radio frequency receiver and receiving method

A radio frequency receiver and receiving channel technology, applied in the field of communication, can solve the problem that multiple frequency synthesizers cannot be integrated in a single chip, etc.
CN104135301AActive Publication Date: 2014-11-05HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HUAWEI TECH CO LTD
Publication Date
2014-11-05

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Abstract

The invention discloses a radio frequency receiver and a receiving method. The receiving method comprises the following steps of: carrying out frequency band separation on a radio frequency signal with multi-carrier aggregation so as to obtain at least one frequency band signal and output; respectively carrying out filtering and amplification processing on the at least one frequency band signal so as to obtain at least one processing signal; generating a plurality of oscillation signals; selectively receiving a processing signal comprising target carrier from the at least one processing signal, receiving one oscillation signal corresponding to the target carrier, selectively selecting a frequency dividing ratio from a plurality of frequency dividing ratios, carrying out frequency division on the oscillation signal corresponding to the frequency dividing ratio to obtain a local oscillation signal, carrying out frequency mixing on the received processing signal comprising the target carrier by utilizing the local oscillation signal so as to obtain a frequency mixing signal, and generating a baseband signal corresponding to the target carrier based on the frequency mixing signal, herein mutual interference between the oscillation signals is restrained through respectively selecting the frequency dividing ratio.
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Description

technical field

[0001] The invention relates to the communication field, in particular to a radio frequency receiver and a receiving method thereof. Background technique

[0002] At present, in order to increase the communication bandwidth and achieve higher user data throughput, in the advanced long-term evolution technology (Long-Term Evolution–Advanced, LTE-A), the carrier aggregation (Carrier Aggregation, CA) technology, CA technology The principle of CA is to carry user communication data on multiple carriers for communication; however, the introduction of CA technology has had a great impact on the original RF receiver solution.

[0003] In the 3GPP (Third Generation Partnership Project) protocol R10 (Release 10, version 10), the following three CA application scenarios are defined, such as figure 1 Shown:

[0004] Intra-band continuous CA (intra-band, contiguous CA);

[0005] Discontinuous CA (intra-band, non-contiguous CA) within the frequency band;

[0006] Inte...

Claims

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