Resource configuration method and device
Embodiments of this application provide an unlicensed frequency band-based resource configuration method and an apparatus, to resolve a problem of configuring a fixed frame period FFP for a terminal device operating in an unlicensed frequency band in a current technology. The method includes: A network device sends fixed frame period FFP configuration information to a terminal device, where the FFP configuration information indicates an FFP configuration of the terminal device, an FFP is a period used by the terminal device to transmit a signal, the FFP includes channel occupancy time COT and an idle period Idle period, the channel occupancy time COT is used by the terminal device to transmit the signal, and the idle period is used by the terminal device to perform LBT.
1. A communication apparatus, comprising:
one or more processors; and
a transceiver coupled to the one or more processors,
wherein the one or more processors are configured to determine fixed frame period (FFP) configuration information, the FFP configuration information indicates an FFP configuration of a terminal device, an FFP is a period for the terminal device to transmit a signal, the FFP comprises channel occupancy time (COT) and an idle period, the channel occupancy time (COT) is used by the terminal device to transmit the signal, and the idle period is for the terminal device to perform listen before talk (LBT), and
wherein the transceiver is configured to send the FFP configuration information and FFP scheduling information to the terminal device,
wherein the FFP scheduling information is used to schedule the terminal device to perform transmission in the FFP configured based on the FFP configuration information,
wherein the FFP scheduling information comprises a time domain resource period indicating one time domain resource period to the terminal device and the one time domain resource period includes a plurality of FFPs in time domain, and
wherein the FFP scheduling information comprises a bitmap of a time domain resource pattern, and the bitmap of the time domain resource pattern indicates whether each FFP of the plurality of FFPs can be used by the terminal device to perform transmission.
2. The communication apparatus according to claim 1 , wherein the FFP configuration information comprises one or more of the following:
a time domain offset of the FFP relative to a system frame or relative to an FFP of a network device, indicating a start boundary of the FFP of the terminal device,
duration of the COT,
duration of the idle period of the FFP,
duration of the FFP, or
a start and length indicator value (SLIV) of a physical uplink shared channel (PUSCH), indicating a configuration of a PUSCH in the COT.
3. The communication apparatus according to claim 2 , wherein the FFP scheduling information comprises a first offset, and the first offset indicates an offset of a start boundary of the FFP scheduled by the communication apparatus relative to a start boundary of a time domain resource on which the network device sends the FFP scheduling information.
4. The communication apparatus according to claim 2 , wherein the FFP scheduling information comprises a quantity of times of transmission and a second offset, the quantity of times of transmission indicates a quantity of FFPs scheduled by the communication apparatus, and the second offset indicates an offset of a start boundary of the first FFP scheduled by the communication apparatus relative to a start boundary of a time domain resource on which the communication apparatus sends the FFP scheduling information.
5. The communication apparatus according to claim 1 , wherein a unit of the time domain offset of the FFP relative to the system frame or relative to the FFP of the network device is a symbol.
6. The communication apparatus according to claim 1 , wherein the duration of the COT satisfies the following rule:
COT duration= L ×rep K ×symbol_length, wherein
L represents a quantity L of symbols in the PUSCH in the COT, rep_K represents a quantity of PUSCHs in one period of COT, and symbol_length represents a length of a symbol in the PUSCH.
7. A communication apparatus, comprising:
a transceiver; and
one or more processors coupled to the transceiver,
wherein the transceiver is configured to receive fixed frame period (FFP) configuration information from a network device, wherein the FFP configuration information indicates an FFP configuration of a terminal device, an FFP is a period for the terminal device to transmit a signal, the FFP comprises channel occupancy time (COT) and an idle period, the channel occupancy time (COT) is for the terminal device to transmit the signal, and the idle period is for the terminal device to perform listen before talk (LBT),
wherein the one or more processors are configured to parse the FFP configuration information and obtain the FFP configuration,
wherein the one or more processors are further configured to receive FFP scheduling information from the network device,
wherein the FFP scheduling information is used to schedule the communication apparatus to perform transmission in the FFP configured based on the FFP configuration information, and
wherein the FFP scheduling information comprises a time domain resource period indicating one time domain resource period to the terminal device and the one time domain resource period includes a plurality of FFPs in time domain, and
wherein the FFP scheduling information comprises a bitmap of a time domain resource pattern, and the bitmap of the time domain resource pattern indicates whether each FFP of the plurality of FFPs can be used by the terminal device to perform transmission.
8. The communication apparatus according to claim 7 , wherein the FFP configuration information comprises one or more of the following:
a time domain offset of the FFP relative to a system frame or relative to an FFP of the network device, indicating a start boundary of the FFP of the terminal device,
duration of the COT,
duration of the idle period of the FFP,
duration of the FFP, or
a start and length indicator value (SLIV) of a physical uplink shared channel (PUSCH), indicating a configuration of a PUSCH in the COT.
9. The communication apparatus according to claim 7 , wherein the FFP scheduling information comprises a first offset, and the first offset indicates an offset of a start boundary of the FFP of the network device relative to a start boundary of a time domain resource on which the network device sends the FFP scheduling information.
10. The communication apparatus according to claim 7 , wherein the FFP scheduling information comprises a quantity of times of transmission and a second offset, the quantity of times of transmission indicates a quantity of FFPs of the network device, and the second offset indicates an offset of a start boundary of the first FFP of the network device relative to a start boundary of a time domain resource on which the network device sends the FFP scheduling information.
11. The communication apparatus according to claim 8 , wherein a unit of the time domain offset of the FFP relative to the system frame or relative to the FFP of the network device is a symbol.
12. The communication apparatus according to claim 11 , wherein the duration of the COT satisfies the following rule:
COT duration= L ×rep K ×symbol_length, wherein
L represents a quantity L of symbols in the PUSCH in the COT, rep_K represents a quantity of PUSCHs in one period of COT, and symbol_length represents a length of a symbol in the PUSCH.
13. A method for configuring a resource in an unlicensed frequency band, comprising:
sending, by a network device, fixed frame period (FFP) configuration information to a terminal device, wherein the FFP configuration information indicates an FFP configuration of the terminal device, the FFP is a period for the terminal device to transmit a signal, the FFP comprises channel occupancy time (COT) and an idle period, the channel occupancy time COT is for the terminal device to transmit the signal, and the idle period is used by the terminal device to perform listen before talk (LBT); and
sending, by the network device, FFP scheduling information to the terminal device,
wherein the FFP scheduling information is used to schedule the terminal device to perform transmission in the FFP configured based on the FFP configuration information,
wherein the FFP scheduling information comprises a time domain resource period indicating one time domain resource period to the terminal device and the one time domain resource period includes a plurality of FFPs in time domain, and
wherein the FFP scheduling information comprises a bitmap of a time domain resource pattern, and the bitmap of the time domain resource pattern indicates whether each FFP of the plurality of FFPs can be used by the terminal device to perform transmission.
14. A method for configuring a resource in an unlicensed frequency band, comprising:
receiving, by a terminal device, fixed frame period (FFP) configuration information from a network device, wherein the FFP configuration information indicates an FFP configuration of the terminal device, an FFP is a period used by the terminal device to transmit a signal, the FFP comprises channel occupancy time (COT) and an idle period, the channel occupancy time (COT) is used by the terminal device to transmit the signal, and the idle period is used by the terminal device to perform listen before talk (LBT);
parsing, by the terminal device, the FFP configuration information and obtaining the FFP configuration; and
receiving, by the terminal device, FFP scheduling information from the network device,
wherein the FFP scheduling information is used to schedule the communication apparatus to perform transmission in the FFP configured based on the FFP configuration information,
wherein the FFP scheduling information comprises a time domain resource period indicating one time domain resource period to the terminal device and the one time domain resource period includes a plurality of FFPs in time domain, and
wherein the FFP scheduling information comprises a bitmap of a time domain resource pattern, and the bitmap of the time domain resource pattern indicates whether each FFP of the plurality of FFPs can be used by the terminal device to perform transmission.