Channel measurement configuration method and communications apparatus
This application provides a channel measurement configuration method and a communications apparatus. The method includes: receiving, by a terminal device, a measurement configuration, where the measurement configuration includes a plurality of resource settings, and the plurality of resource settings include a plurality of resource settings for channel measurement and a plurality of resource settings for interference measurement; receiving, by the terminal device, channel state information reference signals CSI-RSs on resources configured in the plurality of resource settings; and generating, by the terminal device, a CSI group based on the CSI-RSs, where the CSI group includes one or more pieces of CSI. In embodiments of this application, a plurality of resource settings for channel measurement and a plurality of resource settings for interference measurement are associated in one report setting.
1. A channel measurement configuration method, comprising:
receiving, by a terminal device, a measurement configuration, wherein the measurement configuration comprises a plurality of resource settings, and the plurality of resource settings comprise a plurality of resource settings for channel measurement and a plurality of resource settings for interference measurement;
receiving, by the terminal device, channel state information reference signals (CSI-RSs) on resources configured in the plurality of resource settings; and
generating, by the terminal device, a CSI group by performing a joint channel and interference measurement based on the CSI-RSs on the resources configured in the plurality of resource settings for channel measurement and the plurality of resource settings for interference measurement, wherein the CSI group comprises one or more pieces of CSI, and
wherein the terminal device is in a coordinated transmission scenario.
2. The method according to claim 1 , wherein the plurality of resource settings for interference measurement comprise a first resource setting for interference measurement, and the first resource setting for interference measurement is used to configure a resource set used to transmit a zero-power CSI-RS (ZP CSI-RS).
3. The method according to claim 1 , wherein the plurality of resource settings for interference measurement further comprise a plurality of second resource settings for interference measurement, each of the plurality of second resource settings for interference measurement is used to configure a resource set used to transmit a non-zero-power CSI-RS (NZP CSI-RS), the measurement configuration further comprises a plurality of report settings, different report settings in the plurality of report settings are associated with different resource settings in the plurality of second resource settings for interference measurement, and different report settings in the plurality of report settings are associated with different resource settings in the plurality of resource settings for channel measurement.
4. The method according to claim 3 , wherein the plurality of report settings comprise a target report setting and another report setting; and the method further comprises:
receiving, by the terminal device, first indication information, wherein the first indication information is used to indicate that there is a correspondence between the target report setting and the other report setting, and the first indication information and the measurement configuration are transmitted separately or together.
5. The method according to claim 3 , wherein each of the plurality of report settings carries indication information used to indicate a redundancy version (RV).
6. The method according to claim 1 , wherein the measurement configuration further comprises a first report setting, the first report setting is associated with the plurality of resource settings for channel measurement, and the first report setting is associated with the plurality of resource settings for interference measurement.
7. A communications apparatus, comprising:
a transceiver, configured to receive a measurement configuration, wherein the measurement configuration comprises a plurality of resource settings, and the plurality of resource settings comprise a plurality of resource settings for channel measurement and a plurality of resource settings for interference measurement, wherein
the transceiver is further configured to receive channel state information reference signals (CSI-RSs) on resources configured in the plurality of resource settings; and
a processor, configured to generate a CSI group by performing a joint channel and interference measurement based on the CSI-RSs on the resources configured in the plurality of resource settings for channel measurement and the plurality of resource settings for interference measurement, wherein the CSI group comprises one or more pieces of CSI, and
wherein the communications apparatus is in a coordinated transmission scenario.
8. The communications apparatus according to claim 7 , wherein the plurality of resource settings for interference measurement comprise a first resource setting for interference measurement, and the first resource setting for interference measurement is used to configure a resource set used to transmit a zero-power CSI-RS (ZP CSI-RS).
9. The communications apparatus according to claim 7 , wherein the plurality of resource settings for interference measurement further comprise a plurality of second resource settings for interference measurement, each of the plurality of second resource settings for interference measurement is used to configure a resource set used to transmit a non-zero-power CSI-RS (NZP CSI-RS), the measurement configuration further comprises a plurality of report settings, different report settings in the plurality of report settings are associated with different resource settings in the plurality of second resource settings for interference measurement, and different report settings in the plurality of report settings are associated with different resource settings in the plurality of resource settings for channel measurement.
10. The communications apparatus according to claim 9 , wherein the plurality of report settings comprise a target report setting and another report setting; and
the transceiver is further configured to receive first indication information, wherein the first indication information is used to indicate that there is a correspondence between the target report setting and the other report setting, and the first indication information and the measurement configuration are transmitted separately or together.
11. The communications apparatus according to claim 9 , wherein each of the plurality of report settings carries indication information used to indicate a redundancy version (RV).
12. The communications apparatus according to claim 7 , wherein the measurement configuration further comprises a first report setting, the first report setting is associated with the plurality of resource settings for channel measurement, and the first report setting is associated with the plurality of resource settings for interference measurement.
13. A communications apparatus, comprising:
a processor, configured to generate a measurement configuration, wherein the measurement configuration comprises a plurality of resource settings, and the plurality of resource settings comprise a plurality of resource settings for channel measurement and a plurality of resource settings for interference measurement; and
a transceiver, configured to send the measurement configuration to a terminal device for the terminal device to perform a joint channel and interference measurement based on channel state information reference signals (CSI-RSs) on resources configured in the plurality of resource settings for channel measurement and the plurality of resource settings for interference measurement, and
wherein the terminal device is in a coordinated transmission scenario.
14. The communications apparatus according to claim 13 , wherein the plurality of resource settings for interference measurement comprise a resource set used to transmit a zero-power channel state information reference signal (ZP CSI-RS).
15. The communications apparatus according to claim 13 , wherein the measurement configuration further comprises a plurality of report settings, different report settings in the plurality of report settings are associated with different resource settings in the plurality of resource settings for channel measurement, and different report settings in the plurality of report settings are associated with different resource settings in the plurality of resource settings for interference measurement.
16. The communications apparatus according to claim 15 , wherein the plurality of report settings comprise a target report setting and another report setting; and
the transceiver is further configured to send first indication information to the terminal device, wherein the first indication information is used to indicate that there is a correspondence between the target report setting and the other report setting, and the first indication information and the measurement configuration are transmitted separately or together.
17. The communications apparatus according to claim 15 , wherein each of the plurality of report settings carries indication information used to indicate a redundancy version (RV).
18. The communications apparatus according to claim 13 , wherein the measurement configuration comprises a first report setting, the first report setting is associated with the plurality of resource settings for channel measurement, and the first report setting is associated with the plurality of resource settings for interference measurement.