CHANNEL STATE INFORMATION TRANSMISSION AND RECEPTION METHODS AND APPARATUSES AND COMMUNICATION SYSTEM

1 . A channel state information transmission apparatus, applicable to a terminal equipment, the apparatus comprising:

processor circuitry configured to generate first information of second channel state information (CSI) by using a second model when the terminal equipment determines that at least a part of first CSI needs to be omitted, the at least a part of the first CSI being generated based on a first model; and

a first transmitter configured to transmit the second CSI and/or information on the second model to a network device.

2 . The apparatus according to claim 1 , wherein,

the processor circuitry obtains the second model according to an available uplink resource.

3 . The apparatus according to claim 1 , wherein,

the second model is used for a transmission layer needing to be omitted to generate the first information of the second CSI, a bitwidth of the first information being not greater than a difference between a bitwidth outputted by the first model and the number of bits of the transmission layer needing to be omitted.

4 . The apparatus according to claim 1 , wherein,

a method for obtaining the second model comprises:

changing an artificial intelligence model of the first model; and/or

changing a quantizer model of the first model; and/or

adding an adaptation layer to the first model, or reducing or changing an adaptation layer in the first model; and/or

changing configuration of a codebook of the first model.

5 . The apparatus according to claim 1 , wherein,

selecting the second model comprises:

selecting a model from candidate models and taking the model as the second model by the processor circuitry, wherein at least one of the candidate models is configured by the network device by transmitting first configuration information, and/or is agreed between the terminal equipment and the network device, and/or is determined by the processor circuitry, and/or is specified in a protocol.

6 . The apparatus according to claim 5 , wherein,

in a case where at least one of the candidate models is determined by the processor circuitry,

a first receiver of the apparatus receives second configuration information transmitted by the network device, the second configuration information indicating that the processor circuitry determines the candidate models.

7 . The apparatus according to claim 4 , wherein,

a first receiver of the apparatus receives CSI reporting configuration transmitted by the network device, the CSI reporting configuration being used to configure for the processor circuitry with a method for obtaining the second model.

8 . The apparatus according to claim 7 , wherein,

the CSI reporting configuration further comprises information on candidate models.

9 . The apparatus according to claim 1 , wherein the apparatus further comprises:

the first transmitter transmits third information to the network device, the third information being used to report that a method for obtaining the second model by the terminal equipment is as follows:

changing the artificial intelligence model of the first model; and/or changing the quantizer model of the first model; and/or

adding an adaptation layer to the first model, or reducing or changing the adaptation layer of the first model; and/or

changing the configuration of the codebook of the first model.

10 . The apparatus according to claim 1 , wherein,

a first receiver of the apparatus receives first indication information transmitted by the network device, the first indication information being used to indicate whether the terminal equipment is allowed to change a model for generating CSI;

and when the terminal equipment is allowed to change the model for generating CSI and in a case where it is determined that at least a part of the first CSI needs to be omitted, the processor circuitry generates the first information of the second CSI by using the second model.

11 . A channel state information reception apparatus, applicable to a network device, the apparatus comprising:

a second receiver configured to receive information on a second model and/or second channel state information (CSI) transmitted by a terminal equipment,

wherein in a case where it is determined that at least a part of first channel state information (CSI) needs to be omitted, the terminal equipment generates first information of the second CSI by using the second model, the at least a part of the first CSI being generated based on a first model.

12 . The apparatus according to claim 11 , wherein,

the second model is obtained based on an available uplink resource of the terminal equipment.

13 . The apparatus according to claim 11 , wherein,

the first information of the second CSI is generated based on using the second model for a transmission layer needing to be omitted, a bitwidth of the first information being not greater than a difference between a bitwidth outputted by the first model and the number of bits of the transmission layer needing to be omitted.

14 . The apparatus according to claim 11 , wherein,

a method for obtaining the second model by the terminal equipment comprises:

changing an artificial intelligence model of the first model; and/or changing a quantizer model of the first model; and/or

adding an adaptation layer to the first model, or reducing or changing an adaptation layer in the first model; and/or

changing configuration of a codebook of the first model.

15 . The apparatus according to claim 11 , wherein,

selecting the second model by the terminal equipment comprises:

selecting a model from candidate models and taking the model as the second model by the terminal equipment, wherein at least one of the candidate models is configured by the network device by transmitting first configuration information, and/or is agreed between the terminal equipment and the network device, and/or is determined by the terminal equipment, and/or is specified in a protocol.

16 . The apparatus according to claim 15 , wherein,

a second transmitter of the apparatus transmits second configuration information to the terminal equipment, the second configuration information indicating that the terminal equipment determines the candidate models.

17 . The apparatus according to claim 11 , wherein,

the information on the second model comprises:

information on the artificial intelligence model of the second model; and/or

information on the quantizer model of the second model; and/or

information on the adaptation layer model of the second model; and/or

configuration information of the codebook of the second model.

18 . The apparatus according to claim 14 , wherein,

a second transmitter of the apparatus transmits CSI reporting configuration to the terminal equipment, the CSI reporting configuration being used to configure the terminal equipment with a method for obtaining the second model.

19 . The apparatus according to claim 11 , wherein,

the second receiver receives third information transmitted by the terminal equipment, the third information being used to report that a method for obtaining the second model by the terminal equipment is as follows:

changing the artificial intelligence model of the first model; and/or

changing the quantizer model of the first model; and/or

adding an adaptation layer to the first model, or reducing or changing the adaptation layer of the first model; and/or changing the configuration of the codebook of the first model.

20 . The apparatus according to claim 11 , wherein,

a second transmitter of the apparatus transmits first indication information to the terminal equipment, the first indication information being used to indicate whether the terminal equipment is allowed to change a model for generating CSI;

and when the terminal equipment is allowed to change the model for generating CSI and in a case where it is determined that at least a part of the first CSI needs to be omitted, the terminal equipment generates the first information of the second CSI by using the second model.