Method for transmitting and receiving signal by aggregating a plurality of downlink carriers and two uplink carriers
AssigneeLG Electronics Inc.
InventorsSuhwan LIM, Yoonoh YANG, Sangwook LEE, Manyoung JUNG, Jinyup HWANG
Life of this patent
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Abstract
When a terminal aggregates three downlink carriers by using the carrier aggregation (CA) of the LTE-A technology and transmits an uplink signal on two uplink carriers while aggregating two uplink carriers, a harmonic component and an intermodulation distortion (IMD) component are generated, thereby influencing a downlink band of the terminal itself Therefore, the present specification presents a scheme therefor.
Claims9
A method for transmitting/receiving a signal by a terminal configured to aggregate a plurality of downlink carriers and two uplink carriers, the method comprising:
- first determining, by the terminal, whether the uplink carriers include two operating bands among evolved universal terrestrial radio access (E-UTRA) operating bands 1, 2, 3, 5, 7, 8 and 12, and whether center frequency of a first uplink carrier among the uplink carriers is a first value;
- second determining, by the terminal, whether the downlink carriers include three operating bands among E-UTRA operating bands 1, 2, 3, 5, 7, 8, 12, 30 and 40 and whether center frequency of a third downlink carrier among the plurality of downlink carriers is a second value;
- when result of the first determination is all true and result of the second determination is all true, receiving a downlink signal through the plurality of downlink carriers to which maximum sensitivity degradation (MSD) predetermined for a reference sensitivity of the plurality of downlink carriers is applied.
A terminal configured to aggregate a plurality of downlink carriers and two uplink carriers for transmitting/receiving a signal, the terminal comprising:
- a transmitter configured to transmit an uplink signal through the uplink carriers;
- a receiver configured to receive a downlink signal through the plurality of downlink carriers;
- and
- a processor configured to control the transmitter and the receiver,
- wherein the processor,
- first determine whether the uplink carriers include two operating bands of evolved universal terrestrial radio access (E-UTRA) operating bands 1, 2, 3, 5, 7, 8 and 12, and whether center frequency of a first uplink carrier among the uplink carriers is a first value,
- second determine whether the downlink carriers include three operating bands of E-UTRA operating bands 1, 2, 3, 5, 7, 8, 12, 30 and 40 and whether center frequency of a third downlink carrier among the plurality of downlink carriers is a second value, and
- when result of the first determination is all true and result of the second determination is all true, receive a downlink signal through the plurality of downlink carriers to which maximum sensitivity degradation (MSD) predetermined for a reference sensitivity of the plurality of downlink carriers is applied.
Dependencies are inferred from the claim text.