Radio receiver for carrier aggregation
First Claim
1. A radio communication apparatus for a cellular communication system comprising:
- an antenna; and
a radio receiver circuit, the radio receiver circuit comprising;
a low-noise amplifier (LNA) having an input operatively connected to the antenna;
a first receiver operatively connected to an output of the LNA;
a second receiver operatively connected to the output of the LNA; and
a digital signal processing circuit configured to process output signals from the first receiver and the second receiver;
wherein the radio receiver circuit has;
a first mode of operation wherein the first receiver and the second receiver are operable to receive different radio frequency carriers via the LNA; and
a second mode of operation wherein the first receiver and the second receiver are operable to receive the same radio frequency carrier via the LNA.
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Accused Products
Abstract
A radio receiver circuit configurable to operate in a carrier-aggregation (CA) mode and in a non-CA mode is disclosed. It comprises a first receive path arranged to be operatively connected to an antenna and a second receive path arranged to be operatively connected to the same antenna. It further comprises a control unit operatively connected to the first receive path and the second receive path. In the CA mode, the control unit controls the first receive path to receive a first component carrier (CC) and the second receive path to receive a second CC. In the non-CA mode, the control unit selectively controls the first receive path and the second receive path to both receive the same single CC.
12 Citations
12 Claims
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1. A radio communication apparatus for a cellular communication system comprising:
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an antenna; and a radio receiver circuit, the radio receiver circuit comprising; a low-noise amplifier (LNA) having an input operatively connected to the antenna; a first receiver operatively connected to an output of the LNA; a second receiver operatively connected to the output of the LNA; and a digital signal processing circuit configured to process output signals from the first receiver and the second receiver; wherein the radio receiver circuit has; a first mode of operation wherein the first receiver and the second receiver are operable to receive different radio frequency carriers via the LNA; and a second mode of operation wherein the first receiver and the second receiver are operable to receive the same radio frequency carrier via the LNA. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification