Terminal device capability transmission method, apparatus, and system
Embodiments of this application disclose a terminal device capability transmission method, apparatus, and system. A terminal device reports, to a network device, capability information used to indicate a channel state information CSI reporting capability of the terminal device. The capability information is associated with a quantity, supported by the terminal device in a time-domain unit, of ports of pilots used for CSI measurement, and is used to enable the network device receiving the capability information to learn the CSI reporting capability of the terminal device, thereby determining a CSI measurement configuration of the terminal device.
1. A terminal device, comprising:
a processor; and
a transceiver coupled to the processor and configured to:
transmit capability information of the terminal device to a network device, wherein the capability information includes channel state information (CSI) reporting capability information indicating a maximum quantity, supported in a slot, of ports of reference signals used for CSI measurement, and wherein the CSI reporting capability information includes at least one of:
information of a first CSI reporting capability corresponding to codebook type I, or
information of a second CSI reporting capability corresponding to codebook type II;
receive a CSI measurement related configuration related to the capability information of the terminal device from the network device; and
receive at least one reference signal from the network device;
wherein the processor is configured to perform a channel measurement based on the received reference signal, and the transceiver is configured to transmit a result of the channel measurement to the network device.
2. The terminal device according to claim 1 , wherein the CSI reporting capability information includes the information of the first CSI reporting capability corresponding to codebook type I, and the information of the second CSI reporting capability corresponding to codebook type II.
3. The terminal device according to claim 1 , wherein the capability information is indicated by using a bit in a bitmap or by using a value of an indication field.
4. The terminal device according to claim 1 , wherein:
the maximum quantity of ports of the reference signals used for CSI measurement comprises at least one of the following:
a quantity of ports of reference signals used for channel measurement, a sum of the quantity of ports of the reference signals used for channel measurement and a quantity of ports of reference signals used for interference measurement, or a weighted sum of the quantity of ports of the reference signals used for channel measurement and the quantity of ports of the reference signals used for interference measurement.
5. A processing apparatus, comprising at least one processor, wherein the at least one processor is configured to read an instruction in a memory, and implement:
causing a transceiver to transmit capability information of a terminal device to a network device, wherein the capability information includes channel state information (CSI) reporting capability information indicating a maximum quantity, supported in a slot, of ports of reference signals used for CSI measurement, and wherein the CSI reporting capability information includes at least one of:
information of a first CSI reporting capability corresponding to codebook type I, or
information of a second CSI reporting capability corresponding to codebook type;
causing the transceiver to receive a CSI measurement related configuration related to the capability information of the terminal device from the network device;
causing the transceiver to receive at least one reference signal from the network device;
performing a channel measurement based on the received reference signal; and
causing the transceiver to transmit a result of the channel measurement to the network device.
6. The processing apparatus according to claim 5 , wherein the CSI reporting capability information includes the information of the first CSI reporting capability corresponding to codebook type I, and the information of the second CSI reporting capability corresponding to codebook type II.
7. The processing apparatus according to claim 5 , wherein the capability information is indicated by using a bit in a bitmap or by using a value of an indication field.
8. The processing apparatus according to claim 5 , wherein:
the maximum quantity of ports of the reference signals used for CSI measurement comprises at least one of the following:
a quantity of ports of reference signals used for channel measurement, a sum of the quantity of ports of the reference signals used for channel measurement and a quantity of ports of reference signals used for interference measurement, or a weighted sum of the quantity of ports of the reference signals used for channel measurement and the quantity of ports of the reference signals used for interference measurement.
9. A method for reporting capability information of a terminal device in a wireless communication system, comprising:
transmitting capability information of a terminal device to a network device, wherein the capability information includes channel state information (CSI) reporting capability information indicating a maximum quantity, supported in a slot, of ports of reference signals used for CSI measurement, and wherein the CSI reporting capability information includes at least one of:
information of a first CSI reporting capability corresponding to codebook type I, or
information of a second CSI reporting capability corresponding to codebook type;
receiving a CSI measurement related configuration related to the capability information of the terminal device from the network device;
receiving at least one reference signal from the network device;
performing a channel measurement based on the received reference signal; and
transmitting a result of the channel measurement to the network device.
10. The method according to claim 9 , wherein the CSI reporting capability information includes the information of the first CSI reporting capability corresponding to codebook type I, and the information of the second CSI reporting capability corresponding to codebook type II.
11. The method according to claim 9 , wherein the capability information is indicated by using a bit in a bitmap or by using a value of an indication field.
12. The method according to claim 9 , wherein the maximum quantity of ports of the reference signals used for CSI measurement comprises at least one of the following:
a quantity of ports of reference signals used for channel measurement, a sum of the quantity of ports of the reference signals used for channel measurement and a quantity of ports of reference signals used for interference measurement, or a weighted sum of the quantity of ports of the reference signals used for channel measurement and the quantity of ports of the reference signals used for interference measurement.
13. A non-transitory computer-readable storage medium, storing a computer program, wherein when executing the program, a computer implements:
transmitting capability information of a terminal device to a network device, wherein the capability information includes channel state information (CSI) reporting capability information indicating a maximum quantity, supported in a slot, of ports of reference signals used for CSI measurement, and wherein the CSI reporting capability information includes at least one of:
information of a first CSI reporting capability corresponding to codebook type I, or
information of a second CSI reporting capability corresponding to codebook type;
receiving a CSI measurement related configuration related to the capability information of the terminal device from the network device;
receiving at least one reference signal from the network device;
performing a channel measurement based on the received reference signal; and
transmitting a result of the channel measurement to the network device.
14. The non-transitory computer-readable storage medium according to claim 13 , wherein the CSI reporting capability information includes the information of the first CSI reporting capability corresponding to codebook type I, and the information of the second CSI reporting capability corresponding to codebook type II.
15. The non-transitory computer-readable storage medium according to claim 13 , wherein the capability information is indicated by using a bit in a bitmap or by using a value of an indication field.
16. The non-transitory computer-readable storage medium according to claim 13 , wherein the maximum quantity of ports of the reference signals used for CSI measurement comprises at least one of the following:
a quantity of ports of reference signals used for channel measurement, a sum of the quantity of ports of the reference signals used for channel measurement and a quantity of ports of reference signals used for interference measurement, or a weighted sum of the quantity of ports of the reference signals used for channel measurement and the quantity of ports of the reference signals used for interference measurement.