METHODS AND APPARATUSES FOR TRANSMITTING AND RECEIVING CHANNEL STATE INFORMATION AND COMMUNICATION SYSTEM
An apparatus for transmitting channel state information, applicable to a terminal equipment, includes first processor circuitry, wherein the terminal equipment, by the first processor circuitry controlling the terminal equipment, is configured to: receive, by the terminal equipment, first configuration information transmitted by a network device, at least a part of the first configuration information being information of a bitwidth of second information; and transmit channel state information at least based on the information of the bitwidth.
1 . An apparatus for transmitting channel state information, applicable to a terminal equipment, the apparatus comprising first processor circuitry,
wherein the terminal equipment, by the first processor circuitry controlling the terminal equipment, is configured to:
receive, by the terminal equipment, first configuration information transmitted by a network device, at least a part of the first configuration information being information of a bitwidth of second information; and
transmit channel state information at least based on the information of the bitwidth.
2 . The apparatus according to claim 1 , wherein,
the second information comprises channel state information (CSI) and/or precoding matrix information.
3 . The apparatus according to claim 1 , wherein,
the information of a bitwidth of second information comprises:
a bitwidth of the second information, and/or two or more candidate values of the bitwidth of the second information, and/or a maximum value of the bitwidth of the second information, and/or a parameter and/or configuration that is/are able to calculate a maximum value of the bitwidth of the second information.
4 . The apparatus according to claim 3 , wherein,
the parameter and/or configuration comprise(s) information on a model used for generating the channel state information and/or information on a second method.
5 . The apparatus according to claim 4 , wherein,
the first configuration information comprises configuration information generating the CSI based on a first method and/or configuration information generating the CSI based on the second method,
wherein at least one of the first method or the second method is activated.
6 . The apparatus according to claim 5 , wherein,
at least a part of the first method is a method based on an artificial intelligence model; and/or
the second method is a method obtained by a codebook specified in the 3GPP standardization or obtained by revising a value range of at least one parameter of a codebook specified in the 3GPP standardization.
7 . The apparatus according to claim 5 , wherein the terminal equipment, by the first processor circuitry, is configured to:
obtain information of a bitwidth of second information generating CSI based on the first method by the terminal equipment according to the configuration information generating CSI based on the second method.
8 . The apparatus according to claim 7 , wherein,
the terminal equipment obtains a maximum value of a bitwidth of second information generating CSI based on the first method according to the configuration information generating CSI based on the second method and a maximum value of the number of supported downlink transmission layers.
9 . The apparatus according to claim 4 , wherein,
the terminal equipment obtains information of a bitwidth of second information generating CSI based on a first method according to the information on the model.
10 . The apparatus according to claim 3 , wherein,
the first configuration information includes a first field, the first field being used to indicate a value of the bitwidth of the second information; and/or
the first configuration information includes a second field, the second field being used to indicate the two or more candidate values of the bitwidth of the second information; and/or
the first configuration information includes a third field, the third field being used to indicate the maximum value of the bitwidth of the second information.
11 . An apparatus for receiving channel state information, applicable to a network device, the apparatus comprising second processor circuitry,
wherein the network device, by the second processor circuitry controlling the network device, is configured to:
transmit first configuration information by the network device to a terminal equipment, at least a part of the first configuration information being information of a bitwidth of second information; and
receive channel state information at least based on the information of the bitwidth.
12 . The apparatus according to claim 11 , wherein,
the second information comprises channel state information (CSI) and/or precoding matrix information.
13 . The apparatus according to claim 11 , wherein,
the information of a bitwidth of second information comprises:
a bitwidth of the second information, and/or two or more candidate values of the bitwidth of the second information, and/or a maximum value of the bitwidth of the second information, and/or a parameter and/or configuration that is/are able to calculate the maximum value of the bitwidth of the second information.
14 . The apparatus according to claim 13 , wherein,
the parameter and/or configuration comprise(s) information on a model used for generating the channel state information and/or information on a second method.
15 . The apparatus according to claim 14 , wherein,
the first configuration information comprises configuration information generating the CSI based on a first method and/or configuration information generating the CSI based on the second method,
wherein at least one of the first method or the second method is activated.
16 . The apparatus according to claim 15 , wherein,
at least a part of the first method is a method based on an artificial intelligence model; and/or
the second method is a method obtained by a codebook specified in the 3GPP standardization or obtained by revising a value range of at least one parameter of a codebook specified in the 3GPP standardization.
17 . The apparatus according to claim 15 , wherein the network device, by the second processor circuitry, is configured to:
transmit first indication information by the network device to the terminal equipment, the first indication information indicating the terminal equipment to transmit first information, at least a part of the first information being:
a bitwidth of precoding matrix information generating CSI based on the first method and/or a bitwidth of respective precoding vector information of all transmission layers of more than one downlink transmission layer.
18 . The apparatus according to claim 14 , wherein,
the information on the model comprises information on an artificial intelligence model and/or information on a quantizer,
the information on an artificial intelligence model comprising: the number or a maximum value of first elements output by the artificial intelligence model, and/or a type of the first elements,
wherein an output of the artificial intelligence model is an input of the quantizer,
and the information on a quantizer comprising: a quantization method, and/or a quantization type, and/or a quantization precision.
19 . The apparatus according to claim 13 , wherein,
the first configuration information comprises information on one or more models used in generating channel state information based on a first method, and/or a maximum value of the number of supported downlink transmission layers generating CSI based on a first method.
20 . The apparatus according to claim 13 , wherein,
the first configuration information includes a first field, the first field being used to indicate a value of the bitwidth of the second information; and/or
the first configuration information includes a second field, the second field being used to indicate two or more candidate values of the bitwidth of the second information; and/or
the first configuration information includes a third field, the third field being used to indicate the maximum value of the bitwidth of the second information.