Communication apparatus, terminal device, and communication method

1 . A communication method, comprising:

processing, by a processor, carrier configuration information, wherein the carrier configuration information comprises at least one of a bandwidth or a frequency of a carrier configured for a terminal device;

causing a switch to be in a first switch position in response to a determination that the carrier configuration information corresponds to a first uplink band, wherein in the first switch position the switch causes a first branch at which a first duplexer is located to be connected to a first output end of the switch;

causing the switch to be in a second switch position in response to a determination that the carrier configuration information corresponds to a second uplink band, wherein in the second switch position the switch causes a second branch at which a second duplexer is located to be connected to a second output end of the switch;

receiving scheduling information, wherein the scheduling information indicates an uplink resource, the switch is caused to be in the first switch position in response to a first bandwidth of the uplink resource being less than a second bandwidth of the first uplink band, and the switch is caused to be in the second switch position in response to a third bandwidth of the uplink resource being less than a fourth bandwidth of the second uplink band; and

sending a signal on the uplink resource.

2 . The method according to claim 1 , wherein

a first downlink band is the same as a second downlink band,

the first downlink band comprises a plurality of sub-bands,

each of the plurality of sub-bands corresponds to at least one sensitivity index,

at least one of the bandwidth or the frequency of the carrier configured for the terminal device corresponds to one of the plurality of sub-bands, and

the method further comprises:

determining a sensitivity index of the terminal device based on the at least one sensitivity index corresponding to the one sub-band corresponding to the carrier configured for the terminal device.

3 . The method according to claim 1 , wherein

the carrier comprises an uplink carrier,

a first bandwidth of the uplink carrier is within a second bandwidth of a downlink mapped carrier, and

the second bandwidth of the downlink mapped carrier is determined based on a first downlink band or on a second downlink band and a default transceiving frequency interval.

4 . A non-transitory computer-readable storage medium, comprising executable instructions, wherein the executable instructions, when executed by a computer, cause the computer to:

process carrier configuration information, wherein the carrier configuration information comprises at least one of a bandwidth or a frequency of a carrier configured for a terminal device;

cause a switch to be in a first switch position in response to a determination that the carrier configuration information corresponds to a first uplink band, wherein in the first switch position the switch causes a first branch at which a first duplexer is located to be connected to a first output end of the switch;

cause the switch to be in a second switch position in response to a determination that the carrier configuration information corresponds to a second uplink band, wherein in the second switch position the switch causes a second branch at which a second duplexer is located to be connected to a second output end of the switch;

receive scheduling information, wherein the scheduling information indicates an uplink resource, the switch is caused to be in the first switch position in response to a first bandwidth of the uplink resource being less than a second bandwidth of the first uplink band, and the switch is caused to be in the second switch position in response to a third bandwidth of the uplink resource being less than a fourth bandwidth of the second uplink band; and

send a signal on the uplink resource.

5 . The non-transitory computer-readable storage medium according to claim 4 , wherein

a first downlink band is the same as a second downlink band,

the first downlink band comprises a plurality of sub-bands,

each of the plurality of sub-bands corresponds to at least one sensitivity index,

at least one of the bandwidth or the frequency of the carrier configured for the terminal device corresponds to one of the plurality of sub-bands, and

the executable instructions, when executed by the computer, further cause the computer to:

determine a sensitivity index of the terminal device based on the at least one sensitivity index corresponding to the one sub-band corresponding to the carrier configured for the terminal device.

6 . The non-transitory computer-readable storage medium according to claim 4 , wherein

the carrier comprises an uplink carrier,

a first bandwidth of the uplink carrier is within a second bandwidth of a downlink mapped carrier, and

the second bandwidth of the downlink mapped carrier is determined based on a first downlink band or on a second downlink band and a default transceiving frequency interval.

7 . An apparatus, comprising:

a processor; and

a memory having instructions stored thereon that, when executed by the processor, cause the apparatus to:

process carrier configuration information, wherein the carrier configuration information comprises at least one of a bandwidth or a frequency of a carrier configured for a terminal device;

cause a switch to be in a first switch position in response to a determination that the carrier configuration information corresponds to a first uplink band, wherein in the first switch position the switch causes a first branch at which a first duplexer is located to be connected to a first output end of the switch;

cause the switch to be in a second switch position in response to a determination that the carrier configuration information corresponds to a second uplink band, wherein in the second switch position the switch causes a second branch at which a second duplexer is located to be connected to a second output end of the switch;

receive scheduling information, wherein the scheduling information indicates an uplink resource, the switch is caused to be in the first switch position in response to a first bandwidth of the uplink resource being less than a second bandwidth of the first uplink band, and the switch is caused to be in the second switch position in response to a third bandwidth of the uplink resource being less than a fourth bandwidth of the second uplink band; and

send a signal on the uplink resource.

8 . The apparatus according to claim 7 , wherein

a first downlink band is the same as a second downlink band,

the first downlink band comprises a plurality of sub-bands,

each of the plurality of sub-bands corresponds to at least one sensitivity index,

at least one of the bandwidth or the frequency of the carrier configured for the terminal device corresponds to one of the plurality of sub-bands, and

the apparatus is further caused to:

determine a sensitivity index of the terminal device based on the at least one sensitivity index corresponding to the one sub-band corresponding to the carrier configured for the terminal device.

9 . The apparatus according to claim 7 , wherein

the carrier comprises an uplink carrier,

a first bandwidth of the uplink carrier is within a second bandwidth of a downlink mapped carrier, and

the second bandwidth of the downlink mapped carrier is determined based on a first downlink band or on a second downlink band and a default transceiving frequency interval.