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 for obtaining a channel quality indicator (CQI) value, comprising:
obtaining, by a user equipment from a base station, a first CQI configuration comprising:
a first resource indicator corresponding to a first resource which is to be processed by the user equipment in a valid signal processing manner, and
a second resource indicator corresponding to a second resource which is to be processed by the user equipment in an interference signal processing manner;
obtaining, by the user equipment, a first measurement result by measuring a valid signal on the first resource;
obtaining, by the user equipment, a second measurement result by measuring an interference signal on the second resource;
computing, by the user equipment, a first CQI value according to the first measurement result and the second measurement result; and
sending, by the user equipment, the first CQI value to the base station,
wherein the first CQI value is used in a scheduling decision.
2. The method according to claim 1 , wherein:
the user equipment supports a multi-node collaboration technique with multiple transmission scenarios,
the first measurement result represents a channel quality in a transmission scenario, and
the second measurement result represents a channel quality in another transmission scenario.
3. The method according to claim 2 , wherein the multi-node collaboration technique supported by the user equipment is taken from the group consisting of:
a dynamic node selection, and or
a dynamic node silence.
4. The method according to claim 1 , wherein:
the user equipment supports at least two multi-node collaboration techniques,
the first measurement result represents a channel quality in a transmission scenario of a multi-node collaboration technique, and
the second measurement result represents a channel quality in a transmission scenario of another multi-node collaboration technique.
5. The method according to claim 4 , wherein the at least two multi-node collaboration techniques supported by the user equipment comprise at least two of the group consisting of:
joint transmission, coordination scheduling, dynamic node selection and dynamic node silence.
6. The method according to claim 1 , wherein obtaining, by the user equipment from the base station, a first CQI configuration comprises:
receiving, by the user equipment, a radio resource control signaling from the base station, wherein the radio resource control signaling carries the CQI configuration.
7. A user equipment, comprising:
a processor, and
a non-transitory processor-readable medium having processor-executable instructions stored thereon, the processor-executable instructions including processor-executable instructions for the user equipment carrying out a method comprising:
obtaining, from the base station, a first CQI configuration comprising:
a first resource indicator corresponding to a first resource which is to be processed in a valid signal processing manner, and
a second resource indicator corresponding to a second resource which is to be processed in an interference signal processing manner;
obtaining a first measurement result by measuring a valid signal on the first resource;
obtaining a second measurement result by measuring an interference signal on the second resource;
computing a first CQI value according to the first measurement result and the second measurement result; and
sending the first CQI value to the base station,
wherein the CQI value is used in a scheduling decision.
8. The user equipment according to claim 7 , wherein:
the processor-executable instructions include instructions for supporting a multi-node collaboration technique with multiple transmission scenarios,
wherein the first measurement result represents a channel quality in a transmission scenario, and
wherein the second measurement result represents a channel quality in another transmission scenario.
9. The user equipment according to claim 8 , wherein the multi-node collaboration technique supported by the user equipment is taken from the group consisting of: a dynamic node selection, and a dynamic node silence.
10. The user equipment according to claim 7 , wherein:
the processor-executable instructions include instructions for supporting at least two multi-node collaboration techniques,
the first measurement result represents a channel quality in a transmission scenario of a multi-node collaboration technique, and
the second measurement result represents a channel quality in a transmission scenario of another multi-node collaboration technique.
11. The user equipment according to claim 10 , wherein the at least two multi-node collaboration techniques supported by the user equipment comprise at least two of the group consisting of:
joint transmission,
coordination scheduling,
dynamic node selection, and
dynamic node silence.
12. The user equipment according to claim 7 , wherein the first CQI configuration is carried in a radio resource control signaling from the base station.