CROSS-REFERENCE TO THE RELATED APPLICATION

This application is based on and claims priority under 35 U.S.C. § 119 to Korean Patent Application No. 10-2019-0130186, filed on Oct. 18, 2019, in the Korean Intellectual Property Office, the disclosure of which is incorporated by reference herein in its entirety.

BACKGROUND

1. Field

The present disclosure relates to wireless communication, and more particularly, to a receiver supporting carrier aggregation and a wireless communication apparatus including the same.

2. Description of Related Art

Carrier aggregation may include a technique of using a plurality of carriers together for signal transmission and reception of one wireless communication apparatus. A frequency range transmitted by one carrier may be referred to as a frequency channel, and a data amount transmitted through a wireless channel may increase by carrier aggregation supporting a plurality of frequency channels. Recently, the development of communication technology causes a variety of frequency regions of carriers used for carrier aggregation, and to cover this, a wireless communication apparatus may include a plurality of local oscillators configured to provide oscillation signals having various frequencies at once. When the number of local oscillators increases, the arrangement and design thereof are complicated, and signal line lengths from certain local oscillators to load circuits requiring the same oscillation signal are significantly different, and thus, a signal interval occurs, thereby causing deterioration in the performance of the wireless communication apparatus.

SUMMARY

Provided is a connection structure between load circuits and local oscillators for efficiently supporting wide carrier aggregation and improving the performance of a wireless communication apparatus, a switching structure for routing carrier signals to the load circuits, and a method of appropriately allocating the carrier signals to the load circuits.

According to an embodiment, a receiver includes a plurality of primary antennas configured to receive a plurality of first carrier signals corresponding to at least a first frequency band of a plurality of frequency bands; a plurality of diversity antennas configured to receive a plurality of second carrier signals corresponding to at least a second frequency band of the plurality of frequency bands; a first local oscillator configured to generate a first oscillation signal; a first load circuit pair connected to the first local oscillator, and configured to frequency down-convert at least one first carrier signal of the plurality of first carrier signals, and having a first load circuit and a second load circuit adjacent to the first load circuit; and a second load circuit pair connected to the first local oscillator, configured to frequency down-convert at least one second carrier signal of the plurality of second carrier signals, and having a third load circuit and a fourth load circuit adjacent to the third load circuit.

According to an embodiment, a wireless communication apparatus includes a plurality of primary antennas configured to receive a plurality of first carrier signals corresponding to at least a first frequency band of a plurality of frequency bands; a plurality of diversity antennas configured to receive a plurality of second carrier signals corresponding to at least a second frequency band of the plurality of frequency bands; a first reception circuit connected to the plurality of primary antennas and configured to generate a plurality of first baseband signals from the plurality of first carrier signals; and a second reception circuit connected to the plurality of diversity antennas and configured to generate a plurality of second baseband signals from the plurality of second carrier signals, wherein each reception circuit of the first reception circuit and the second reception circuit includes a plurality of load circuit pairs, and wherein each load circuit of the plurality of load circuit pairs includes a carrier aggregation load circuit connected to a first local oscillator, and an auxiliary load circuit adjacent to the carrier aggregation load circuit and connected to the first local oscillator.

According to an embodiment, a wireless communication apparatus includes a first reception circuit having a plurality of first load circuit pairs configured to receive a plurality of first carrier signals corresponding to at least a first frequency band of a plurality of frequency bands through a plurality of primary antennas, and configured to perform frequency down-conversion using the first frequency band; a second reception circuit having a plurality of second load circuit pairs configured to receive a plurality of second carrier signals corresponding to at least a second frequency band of the plurality of frequency bands through a plurality of diversity antennas, and configured to perform the frequency down-conversion using the second frequency band; and a baseband processor configured to control routing of the plurality of first carrier signals to the plurality of first load circuit pairs, and routing of the plurality of second carrier signals to the plurality of second load circuit pairs, based on a pre-set usage of a load circuit, wherein each load circuit pair of the plurality of first load circuit pairs and the plurality of second load circuit pairs includes a carrier aggregation load circuit connected to a first local oscillator, and an auxiliary load circuit adjacent to the carrier aggregation load circuit and connected to the first local oscillator.

