Electronic device, radio communication method, and computer readable storage medium
The present disclosure relates to an electronic device, a radio communication method, and a computer readable storage medium. The electronic device of the present disclosure comprises a processing circuit and is configured to use a group common-physical downlink control channel (GC-PDCCH) to transmit information about a termination position of a downlink transmission using an unlicensed spectrum. The electronic device, the radio communication method, and the computer readable storage medium of the present disclosure can be used to better design a GC-PDCCH according to characteristics of an NR communication system.
1. An electronic device comprising a processing circuit configured to:
transmit, through a Group Common-Physical Downlink Control Channel (GC-PDCCH), Time slot Format related Information (SFI) identifying a time slot where a downlink transmission termination position is located for an unlicensed spectrum,
wherein the downlink transmission termination position is transmitted through the GC-PDCCH in an Nth time slot before the downlink transmission termination position, where N is a nonnegative integer,
wherein the processing circuit is further configured to determine a value of N from each of the following parameters:
a length of a Max Channel Occupy Time (MCOT) for downlink transmission;
a transmission period of the GC-PDCCH; and
a length of an Orthogonal Frequency Division Multiplexing (OFDM) symbol within the MCOT for downlink transmission,
wherein the processing circuit is further configured to transmit, through the GC-PDCCH, the length of the MCOT and a time domain position of the MCOT for downlink transmission, the MCOT comprising one or more time slots.
2. The electronic device according to claim 1 , wherein when N=0, the downlink transmission termination position is transmitted through the GC-PDCCH within a time slot where the downlink transmission termination position is located.
3. The electronic device according to claim 1 , wherein the processing circuit is further configured to configure the SH such that:
a number of switching points between uplink transmission and downlink transmission comprised in each time slot in the MCOT is not greater than two; and
a number of switching points between uplink transmission and downlink transmission comprised in the MCOT is not greater than a predetermined threshold.
4. The electronic device according to claim 1 , wherein the processing circuit is further configured to:
transmit, through the GC-PDCCH, information on whether to perform a channel detection process before performing uplink transmission within a time slot of the MCOT.
5. The electronic device according to claim 4 , Wherein the processing circuit is further configured to:
transmit, through a Physical Downlink Control Channel (PIDCCH), the information on whether to perform a channel detection process before performing uplink transmission within a time slot of the MCOT.
6. The electronic device according to claim 1 , wherein the processing circuit is configured to:
transmit, through the GC-PDCCH, parameter information of the channel detection process performed before performing uplink transmission within a time slot of the MCOT.
7. An electronic device comprising a processing circuit configured to:
receive, through a Group Common-Physical Downlink Control Channel (GC-PDCCH), Time slot Format related Information (SFI) identifying a time slot where downlink transmission termination position is located for an unlicensed spectrum,
wherein the downlink transmission termination position is transmitted through the GC-PDCCH in an Nth time slot before the downlink transmission termination position, where N is a nonnenative integer,
wherein the processing circuit is further configured to determine a value of N from each of the following parameters:
a length of a Max Channel Occupy Time (MCOT) for downlink transmission:
a transmission period of the GC-PDCCH; and
a length of an Orthogonal Frequency Division Multiplexing (OFDM) symbol within the MCOT for downlink transmission,
wherein the processing circuit is further configured to receive, through the GC-PDCCH, the length of the MCOT and a time domain position of the MCOT for downlink transmission, the MCOT comprising one or more time slots.
8. The electronic device according to claim 7 , wherein when N=0, the downlink transmission termination position is transmitted through the GC-PDCCH within a time slot where the downlink transmission termination position is located.
9. The electronic device according to claim 7 , wherein the SF1 is configured such that
a number of switching points between uplink transmission and downlink transmission comprised in each time slot in the MCOT is not greater than two; and
a number of switching points between uplink transmission and downlink transmission comprised in the MCOT is not greater than a predetermined threshold.
10. The electronic device according to claim 7 , wherein the processing circuit is further configured to:
receive, through the GC-PDCCH, information on whether to perform a channel detection process before performing uplink transmission within a time slot of the MCOT.
11. The electronic device according to claim 10 , wherein the processing circuit is further configured to:
receive, through a Physical Downlink Control Channel (PDCCH), the information on whether to perform a channel detection process before performing uplink transmission within a time slot of the MCOT.
12. The electronic device according to claim 7 , wherein the processing circuit is configured to:
receive, through the GC-PDCCH, parameter information of the channel detection process performed before performing uplink transmission within a time slot of the MCOT.
13. A method performed by an electronic device comprising a processing circuit, the method comprising:
transmitting, through a Group Common-Physical Downlink Control Channel (GC-PDCCH), Time slot Format related Information (SFI) identifying a time slot where a downlink transmission termination position is located for an unlicensed spectrum,
wherein the downlink transmission termination position is transmitted through the GC-PDCCH in an Nth time slot before the downlink transmission termination position, where N is a nonnegative integer,
wherein the method further comprises:
determining a value of N from each of the following parameters:
a length of a Max Channel Occupy Time (MCOT) for downlink transmission;
a transmission period of the GC-PDCCH; and
a length of an Orthogonal Frequency Division Multiplexing (OFDM) symbol within the MCOT for downlink transmission; and
transmitting, through the GC-PDCCH, the length of the MCOT and a time domain position of the MCOT for downlink transmission, the MCOT comprising one or more time slots.