Method and system for measuring a channel quality indicator, user equipment and base station
Embodiments of the present invention provide a method and a system for measuring a channel quality indicator, a user equipment and a base station. The method includes: obtaining a channel quality indicator configuration, where the channel quality indicator configuration includes a first combination, and the first combination includes a valid signal processing manner and an interfering signal processing manner; performing valid signal processing and interfering signal processing according to the valid signal processing manner and the interfering signal processing manner in the first combination to obtain a valid signal and an interfering signal; performing channel quality indicator calculation according to the valid signal and the interfering signal to obtain a channel quality indicator; and feeding the channel quality indicator back to a base station.
1. A method, performed by a terminal device, for providing a channel quality indicator (CQI) value to a base station, the method comprising:
receiving, from the base station, resource settings comprising a first resource setting for performing a valid signal measurement and a second resource setting for performing a first interference signal measurement;
obtaining a valid signal measurement result by performing the valid signal measurement based on the first resource setting;
obtaining a first interference signal measurement result by performing the first interference signal measurement based on the second resource setting;
determining the CQI according to the valid signal measurement result and the first interference signal measurement result; and
sending the CQI to the base station.
2. The method according to claim 1 , wherein
the resource settings further comprises a third resource setting for performing a second interference signal measurement;
the method further comprises:
obtaining a second interference signal measurement result by performing the second interference signal measurement;
and
the determining comprises:
determining the CQI according to the valid signal measurement result, the first interference signal measurement result, and the second interference signal measurement result.
3. The method according to claim 1 , wherein
the resource settings comprises an interfering signal forming manner.
4. The method according to claim 1 , wherein the receiving, from the base station, the resource settings comprises:
receiving the resource settings by a radio resource control (RRC) signaling.
5. A terminal device, comprising:
a processor; and
a non-transitory storage medium including executable instructions;
wherein the executable instructions, when executed by the processor, cause the terminal device to carry out a method for providing a channel quality indicator (CQI) value to a base station, the method comprising:
receiving, from the base station, resource settings comprising a first resource setting for performing a valid signal measurement and a second resource setting for performing a first interference signal measurement;
obtaining a valid signal measurement result by performing the valid signal measurement based on the first resource setting;
obtaining a first interference signal measurement result by performing the first interference signal measurement based on the second resource setting;
determining the CQI according to the valid signal measurement result and the first interference signal measurement result; and
sending the CQI to the base station.
6. The terminal device according to claim 5 , wherein
the resource settings further comprises a third resource setting for performing a second interference signal measurement; and
the instructions comprise instructions causing the terminal device to:
obtain a second interference signal measurement result by performing the second interference signal measurement; and
determine the CQI according to the valid signal measurement result, the first interference signal measurement result, and the second interference signal measurement result.
7. The terminal device according to claim 5 , wherein
the resource setting comprises an interfering signal forming manner.
8. The terminal device according to claim 5 , wherein the instructions comprise instructions causing the terminal device to receive the resource settings by a radio resource control (RRC) signaling.
9. A method, performed by a base station, for obtaining a channel quality indicator (CQI) value, the method comprising:
sending, to a terminal device, resource settings comprising a first resource setting for performing a valid signal measurement and a second resource setting for performing a first interference signal measurement;
receiving, in response to the sending the resource settings, the CQI from the terminal device;
wherein the CQI is based on a valid signal measurement result of the valid signal measurement and a first interference signal measurement result of the first interference signal measurement.
10. The method according to claim 9 , wherein:
the resource settings further comprises a third resource setting for performing a second interference signal measurement; and
the CQI is based on the valid signal measurement result of the valid signal measurement, the first interference signal measurement result of the first interference signal measurement, and a second interference signal measurement result of the second interference signal measurement.
11. The method according to claim 9 , wherein
the resource settings comprises an interfering signal forming manner.
12. The method according to claim 9 , wherein the sending the resource settings comprises:
sending, to the terminal device, the resource settings by a radio resource control (RRC) signaling.
13. A base station, comprising:
a processor; and
a non-transitory storage medium including executable instructions;
wherein the executable instructions, when executed by the processor, cause the base station to carry out a method for obtaining a channel quality indicator (CQI) value, the method comprising:
sending, to a terminal device, a resource settings comprising a first resource setting for performing a valid signal measurement and a second resource setting for performing an interference signal measurement;
receiving, in response to the sending the resource settings, the CQI from the terminal device;
wherein the CQI is based on a valid signal measurement result of the valid signal measurement and a first interference signal measurement result of the first interference signal measurement.
14. The base station according to claim 13 , wherein:
the resource settings further comprises a third resource setting for performing a second interference signal measurement; and
the CQI is based on the valid signal measurement result of the valid signal measurement, the first interference signal measurement result of the first interference signal measurement, and a second interference signal measurement result of the second interference signal measurement.
15. The base station according to claim 13 , wherein
the resource settings comprises an interfering signal forming manner.
16. The base station according to claim 13 , wherein the sending the resource settings comprises sending, to the terminal device, the resource settings by a radio resource control (RRC) signaling.