Method for determining occupancy time of channel state information CSI processing unit, and terminal device
This disclosure discloses a method for determining an occupancy time of a channel state information (CSI) processing unit, and a terminal device. The method includes: determining an occupancy time of the CSI processing unit based on a CSI report type in a CSI report configuration, where the CSI report type includes that CSI information to be reported by the terminal device to a network device is beam measurement information, or that the CSI information to be reported to the network device has no content and a channel state information reference signal (CSI-RS) resource is not used for tracking reference signal (TRS) measurement.
1. A method for determining an occupancy time of a channel state information (CSI) processing unit, applied to a terminal device and comprising:
for a CSI report with CSI report configuration with report Quantity set to ‘none’ and a Channel State Information-Reference Signals (CSI-RS) resource set associated with the CSI report is not configured with higher-layer parameter trs-Info, determining an occupancy time of the CSI processing unit based on a time-domain characteristic of the CSI report;
wherein determining an occupancy time of the CSI processing unit based on a time-domain characteristic of the CSI report comprises:
when the time-domain characteristic of the CSI report is periodic or semi-persistent, determining that the occupancy time of the CSI processing unit starts from the 1st Orthogonal Frequency Division Multiplexing (OFDM) symbol of a CSI resource until Z′ OFDM symbols after the last OFDM symbol of the CSI resource;
when the time-domain characteristic of the CSI report is aperiodic, determining that the occupancy time of the CSI processing unit starts from the 1st OFDM symbol after a PDCCH triggering the CSI report until a later one between the first OFDM symbol and the second OFDM symbol, the first OFDM symbol is Z OFDM symbols after the 1st OFDM symbol that is after the PDCCH triggering the CSI report, and the second OFDM symbol is Z′ OFDM symbols after the last OFDM symbol of a CSI resource, wherein Z and Z′ are quantities related to OFDM symbols required for calculating CSI, and Z and Z′ are positive integers.
2. The method according to claim 1 , wherein the method further comprises:
for the CSI information to be reported to the network device being the beam measurement information, determining the occupancy time of the CSI processing unit based on a time-domain characteristic of a CSI report.
3. The method according to claim 1 , wherein Z′ is a quantity related to OFDM symbols required for calculating the beam measurement information; and
the CSI resource is an earliest CSI resource in at least one CSI resource transmitted each time, or the CSI resource is an earliest CSI resource in at least one most-recently-transmitted CSI resource that is not later than a CSI reference resource corresponding to the CSI report.
4. The method according to claim 3 , wherein the CSI reference resource is related to a CSI-RS resource that is transmitted periodically or semi-persistently.
5. The method according to claim 1 , wherein
the first OFDM symbol is Z OFDM symbols after the 1st OFDM symbol that is after the PDCCH triggering the CSI report, and the second OFDM symbol is Z′ OFDM symbols after the last OFDM symbol of a CSI resource, wherein Z′ is a quantity related to OFDM symbols required for calculating the beam measurement information, Z is related to Z′.
6. The method according to claim 1 , wherein
the CSI resource comprises at least one SSB resource or at least one CSI-RS resource in a CSI resource configuration associated with the CSI report configuration; or
the CSI resource comprises at least one SSB resource or at least one CSI-RS resource in a CSI resource configuration associated with the CSI report configuration, and at least one interference measurement resource or at least one received signal strength indicator (RSSI) measurement resource.
7. The method according to claim 1 , wherein when the time-domain characteristic of the CSI report is periodic or semi-persistent, a measurement period and slot offset of a CSI resource are consistent with a transmission period and slot offset of the CSI resource.
8. A terminal device, comprising: a processor, a memory, and a computer program stored in the memory and capable of running on the processor, and the computer program is executed by the processor to perform:
for a CSI report with CSI report configuration with report Quantity set to ‘none’ and a Channel State Information-Reference Signals (CSI-RS) resource set associated with the CSI report is not configured with higher-layer parameter trs-Info, determining an occupancy time of the CSI processing unit based on a time-domain characteristic of the CSI report;
wherein the computer program is executed by the processor to perform:
when the time-domain characteristic of the CSI report is periodic or semi-persistent, determining that the occupancy time of the CSI processing unit starts from the 1st OFDM Orthogonal Frequency Division Multiplexing (OFDM) symbol of a CSI resource until Z′ OFDM symbols after the last OFDM symbol of the CSI resource;
when the time-domain characteristic of the CSI report is aperiodic, determining that the occupancy time of the CSI processing unit starts from the 1st OFDM symbol after a PDCCH triggering the CSI report until a later one between the first OFDM symbol and the second OFDM symbol, the first OFDM symbol is Z OFDM symbols after the 1st OFDM symbol that is after the PDCCH triggering the CSI report, and the second OFDM symbol is Z′ OFDM symbols after the last OFDM symbol of a CSI resource, wherein Z and Z′ are quantities related to OFDM symbols required for calculating CSI, and Z and Z′ are positive integers.
9. The terminal device according to claim 8 , wherein
the computer program is executed by the processor to further perform:
for the CSI information to be reported to the network device being the beam measurement information, determining the occupancy time of the CSI processing unit based on a time-domain characteristic of a CSI report.
10. The terminal device according to claim 8 , wherein Z′ is a quantity related to OFDM symbols required for calculating the beam measurement information; and
the CSI resource is an earliest CSI resource in at least one CSI resource transmitted each time, or the CSI resource is an earliest CSI resource in at least one most-recently-transmitted CSI resource that is not later than a CSI reference resource corresponding to the CSI report.
11. The terminal according to claim 10 , wherein the CSI reference resource is related to a CSI-RS resource that is transmitted periodically or semi-persistently.
12. The terminal device according to claim 8 , wherein the first OFDM symbol is Z OFDM symbols after the 1st OFDM symbol that is after the PDCCH triggering the CSI report, and the second OFDM symbol is Z′ OFDM symbols after the last OFDM symbol of a CSI resource, wherein Z′ is a quantity related to OFDM symbols required for calculating the beam measurement information, Z is related to Z′.
13. The terminal device according to claim 8 , wherein
the CSI resource comprises at least one SSB resource or at least one CSI-RS resource in a CSI resource configuration associated with the CSI report configuration; or
the CSI resource comprises at least one SSB resource or at least one CSI-RS resource in a CSI resource configuration associated with the CSI report configuration, and at least one interference measurement resource or at least one received signal strength indicator RSSI measurement resource.
14. The terminal according to claim 8 , wherein when the time-domain characteristic of the CSI report is periodic or semi-persistent, a measurement period and slot offset of a CSI resource are consistent with a transmission period and slot offset of the CSI resource.
15. A non-transitory computer-readable storage medium, wherein one or more programs are stored in the non-transitory computer-readable storage medium, and the programs are executed by a processor to:
for a CSI report with CSI report configuration with report Quantity set to ‘none’ and a Channel State Information-Reference Signals (CSI-RS) resource set associated with the CSI report is not configured with higher-layer parameter trs-Info, determine an occupancy time of the CSI processing unit based on a time-domain characteristic of the CSI report;
wherein the programs are further executed by the processor to:
when the time-domain characteristic of the CSI report is periodic or semi-persistent, determine that the occupancy time of the CSI processing unit starts from the 1st OFDM-Orthogonal Frequency Division Multiplexing (OFDM) symbol of a CSI resource until Z′ OFDM symbols after the last OFDM symbol of the CSI resource;
when the time-domain characteristic of the CSI report is aperiodic, determine that the occupancy time of the CSI processing unit starts from the 1st OFDM symbol after a PDCCH triggering the CSI report until a later one between the first OFDM symbol and the second OFDM symbol, the first OFDM symbol is Z OFDM symbols after the 1st OFDM symbol that is after the PDCCH triggering the CSI report, and the second OFDM symbol is Z′ OFDM symbols after the last OFDM symbol of a CSI resource, wherein Z and Z′ are quantities related to OFDM symbols required for calculating CSI, and Z and Z′ are positive integers.
16. The non-transitory computer-readable storage medium according to claim 15 , wherein the programs are further executed by the processor to, for the CSI information to be reported to the network device being the beam measurement information, determine the occupancy time of the CSI processing unit based on a time-domain characteristic of a CSI report.
17. The non-transitory computer-readable storage medium according to claim 15 , wherein Z′ is a quantity related to OFDM symbols required for calculating the beam measurement information; and
the CSI resource is an earliest CSI resource in at least one CSI resource transmitted each time, or the CSI resource is an earliest CSI resource in at least one most-recently-transmitted CSI resource that is not later than a CSI reference resource corresponding to the CSI report.
18. The non-transitory computer-readable storage medium according to claim 17 , wherein the CSI reference resource is related to a CSI-RS resource that is transmitted periodically or semi-persistently.
19. The non-transitory computer-readable storage medium according to claim 15 , wherein the first OFDM symbol is Z OFDM symbols after the 1st OFDM symbol that is after the PDCCH triggering the CSI report, and the second OFDM symbol is Z′ OFDM symbols after the last OFDM symbol of a CSI resource, wherein Z′ is a quantity related to OFDM symbols required for calculating the beam measurement information, Z is related to Z′.
20. The non-transitory computer-readable storage medium according to claim 15 , wherein when the time-domain characteristic of the CSI report is periodic or semi-persistent, a measurement period and slot offset of a CSI resource are consistent with a transmission period and slot offset of the CSI resource.