METHOD AND DEVICE USED FOR WIRELESS COMMUNICATION

1 . A first node for wireless communications, comprising:

a first receiver, receiving a first reference signal; and

a first transmitter, transmitting first channel information and a first CQI;

wherein a measurement of the first reference signal is used to generate the first channel information; calculation of the first CQI is related to a type of the first channel information; the type of the first channel information is one of a PMI or a first type; when the type of the first channel information is PMI, the calculation of the first CQI is conditioned on a precoding matrix indicated by the first channel information; when the type of the first channel information is the first type, a measurement of the first reference signal is used to generate a first channel matrix, the first channel matrix being used to generate the first CQI, and the first channel matrix being available only for the first node.

2 . The first node according to claim 1 , characterized in that when the type of the first channel information is the first type, the first channel matrix is an output obtained after inputting the first channel information to a first reference decoder, the first reference decoder being available only for the first node.

3 . The first node according to claim 1 , characterized in that when the type of the first channel information is the first type, the first channel matrix is used together with a first amount of adjustment to calculate the first CQI.

4 . The first node according to claim 3 , characterized in that when the type of the first channel information is the first type, calculation of the first CQI is conditioned on that a first reference channel matrix is used for precoding, and the first amount of adjustment is used together with the first channel matrix to generate the first reference channel matrix.

5 . The first node according to claim 3 , characterized in that when the type of the first channel information is the first type, a channel quality calculated conditioned on that the first channel matrix is used for precoding is used together with the first amount of adjustment to determine the first CQI.

6 . The first node according to claim 1 , characterized in comprising:

the first receiver, generating the first channel information utilizing a first encoder;

wherein an input to the first encoder includes the first channel matrix, the first encoder being obtained through training.

7 . The first node according to claim 1 , characterized in that the first channel matrix is a codebook-based precoding matrix, the first type being non-codebook-based channel information.

8 . A second node for wireless communications, comprising:

a second transmitter, transmitting a first reference signal; and

a second receiver, receiving first channel information and a first CQI;

wherein a measurement of the first reference signal is used to generate the first channel information; calculation of the first CQI is related to a type of the first channel information; the type of the first channel information is one of a PMI or a first type; when the type of the first channel information is PMI, the calculation of the first CQI is conditioned on a precoding matrix indicated by the first channel information; when the type of the first channel information is the first type, a measurement of the first reference signal is used to generate a first channel matrix, the first channel matrix being used to generate the first CQI, and the first channel matrix is unavailable for the second node.

9 . The second node according to claim 8 , characterized in comprising:

the second receiver, generating a first recovered channel matrix utilizing a first decoder;

wherein an input to the first decoder includes the first channel information, the first decoder being obtained through training.

10 . The second node according to claim 8 , characterized in that when the type of the first channel information is the first type, the first channel matrix is an output obtained after inputting the first channel information to a first reference decoder, the first reference decoder being available only for the first node.

11 . The second node according to claim 8 , characterized in that when the type of the first channel information is the first type, the first channel matrix is used together with a first amount of adjustment to calculate the first CQI.

12 . The second node according to claim 11 , characterized in that when the type of the first channel information is the first type, calculation of the first CQI is conditioned on that a first reference channel matrix is used for precoding, and the first amount of adjustment is used together with the first channel matrix to generate the first reference channel matrix.

13 . The second node according to claim 11 , characterized in that when the type of the first channel information is the first type, a channel quality calculated conditioned on that the first channel matrix is used for precoding is used together with the first amount of adjustment to determine the first CQI.

14 . The second node according to claim 8 , characterized in that the first channel matrix is a codebook-based precoding matrix, the first type being non-codebook-based channel information.

15 . A method in a first node for wireless communications, comprising:

receiving a first reference signal; and

transmitting first channel information and a first CQI;

wherein a measurement of the first reference signal is used to generate the first channel information; calculation of the first CQI is related to a type of the first channel information; the type of the first channel information is one of a PMI or a first type; when the type of the first channel information is PMI, the calculation of the first CQI is conditioned on a precoding matrix indicated by the first channel information; when the type of the first channel information is the first type, a measurement of the first reference signal is used to generate a first channel matrix, the first channel matrix being used to generate the first CQI, and the first channel matrix being available only for the first node.

16 . The method in the first node according to claim 15 , characterized in that when the type of the first channel information is the first type, the first channel matrix is an output obtained after inputting the first channel information to a first reference decoder, the first reference decoder being available only for the first node.

17 . The method in the first node according to claim 15 , characterized in that when the type of the first channel information is the first type, the first channel matrix is used together with a first amount of adjustment to calculate the first CQI;

wherein when the type of the first channel information is the first type, calculation of the first CQI is conditioned on that a first reference channel matrix is used for precoding, and the first amount of adjustment is used together with the first channel matrix to generate the first reference channel matrix.

18 . The method in the first node according to claim 15 , characterized in that when the type of the first channel information is the first type, a channel quality calculated conditioned on that the first channel matrix is used for precoding is used together with the first amount of adjustment to determine the first CQI.

19 . The method in the first node according to claim 15 , characterized in comprising:

generating the first channel information utilizing a first encoder;

wherein an input to the first encoder includes the first channel matrix, the first encoder being obtained through training.

20 . The method in the first node according to claim 15 , characterized in that the first channel matrix is a codebook-based precoding matrix, the first type being non-codebook-based channel information.