Resource scheduling method, terminal device, and network device
A method for scheduling resources is disclosed herein. A terminal device receives a downlink control information (DCI) indication sent by a network device. The DCI is used to indicate a first resource, and the first resource is a time-frequency resource for a narrowband physical uplink shared channel (NPUSCH) format 2 transmission. The NPUSCH format 2 is used to bear downlink hybrid automatic repeat request-acknowledgment (HARQ-ACK) feedback information. The terminal device determines the first resource according to the DCI, and sends a scheduling request to the network device on the first resource.
1. A resource scheduling method, comprising:
receiving, by a terminal device, a downlink control information (DCI) from a network device, wherein the DCI is used to indicate a first resource, and the first resource is a time-frequency resource used to transmit a narrowband physical uplink shared channel (NPUSCH) format 2 transmission, and the NPUSCH format 2 transmission is used to carry downlink hybrid automatic repeat request-acknowledgment (HARQ-ACK) feedback information;
determining, by the terminal device, a first transmission sequence based on the HARQ-ACK feedback information and a preset orthogonal sequence, wherein the first transmission sequence is a sequence of complex symbols, wherein the sequence of complex symbols is obtained by multiplying a modulation symbol with each element in the preset orthogonal sequence, wherein the modulation symbol is determined based on the HARQ-ACK feedback information, wherein the preset orthogonal sequence is a first orthogonal sequence or a second orthogonal sequence different from the first orthogonal sequence, wherein the first orthogonal sequence is used when there is no scheduling request to be transmitted, and wherein the second orthogonal sequence is used when there is a scheduling request to be transmitted; and
transmitting, by the terminal device, the first transmission sequence on the first resource, wherein the first transmission sequence is used to carry both the HARQ-ACK feedback information and scheduling request information.
2. The method according to claim 1 , wherein:
the first orthogonal sequence is {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1};
or
the second orthogonal sequence is {1, −1, 1, −1, 1, −1, 1, −1, 1, −1, 1, −1, 1, −1, 1, −1}.
3. A resource scheduling method, comprising:
sending, by a network device, a downlink control information (DCI) to a terminal device, wherein the DCI is used to indicate a first resource, and the first resource is a time-frequency resource for a narrowband physical uplink shared channel (NPUSCH) format 2 transmission, wherein the NPUSCH format 2 transmission is used to carry downlink hybrid automatic repeat request-acknowledgment (HARQ-ACK) feedback information; and
receiving, by the network device on the first resource, a first transmission sequence from the terminal device, wherein the first transmission sequence is determined by the terminal device based on the HARQ-ACK feedback information and a preset orthogonal sequence, and wherein the first transmission sequence is used to carry both the HARQ-ACK feedback information and scheduling request information, wherein the first transmission sequence is a sequence of complex symbols, wherein the sequence of complex symbols is obtained by multiplying a modulation symbol with each element in the preset orthogonal sequence, wherein the modulation symbol is determined based on the HARQ-ACK feedback information, wherein the preset orthogonal sequence is a first orthogonal sequence or a second orthogonal sequence different from the first orthogonal sequence, wherein the first orthogonal sequence is used when there is no scheduling request to be transmitted, and wherein the second orthogonal sequence is used when there is a scheduling request to be transmitted.
4. The method according to claim 3 , wherein the second orthogonal sequence is {1, −1, 1, −1, 1, −1, 1, −1, 1, −1, 1, −1, 1, −1, 1, −1}.
5. A communication apparatus, comprising:
a receiver, configured to receive a downlink control information (DCI) from a network device, wherein the DCI is used to indicate a first resource, and the first resource is a time-frequency resource used to transmit a narrowband physical uplink shared channel (NPUSCH) format 2 transmission, and wherein the NPUSCH format 2 transmission is used to carry downlink hybrid automatic repeat request-acknowledgment (HARQ-ACK) feedback information;
a processor, configured to determine a first transmission sequence based on the HARQ-ACK feedback information and a preset orthogonal sequence, wherein the first transmission sequence is a sequence of complex symbols, wherein the sequence of complex symbols is obtained by multiplying a modulation symbol with each element in the preset orthogonal sequence, wherein the modulation symbol is determined based on the HARQ-ACK feedback information, wherein the preset orthogonal sequence is a first orthogonal sequence or a second orthogonal sequence different from the first orthogonal sequence, wherein the first orthogonal sequence is used when there is no scheduling request to be transmitted, and wherein the second orthogonal sequence is used when there is a scheduling request to be transmitted; and
a transmitter, configured to send the first transmission sequence on the first resource, wherein the first transmission sequence is used to carry both the HARQ-ACK feedback information and scheduling request information.
6. The apparatus according to claim 5 , wherein:
the first orthogonal sequence is {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1};
or
the second orthogonal sequence is {1, −1, 1, −1, 1, −1, 1, −1, 1, −1, 1, −1, 1, −1, 1, −1}.
7. A communication apparatus, comprising:
a transmitter, configured to send a downlink control information (DCI) to a terminal device, wherein the DCI is used to indicate a first resource, the first resource is a time-frequency resource used to transmit a narrowband physical uplink shared channel (NPUSCH) format 2 transmission, and the NPUSCH format 2 transmission is used to carry downlink hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback information; and
a receiver, configured to receive, on the first resource, a first transmission sequence from the terminal device, wherein the first transmission sequence is determined by the terminal device based on the HARQ-ACK feedback information and a preset orthogonal sequence, and wherein the first transmission sequence is used to carry both the HARQ-ACK feedback information and scheduling request information, wherein the first transmission sequence is a sequence of complex symbols, wherein the sequence of complex symbols is obtained by multiplying a modulation symbol with each element in the preset orthogonal sequence, wherein the modulation symbol is determined based on the HARQ-ACK feedback information, wherein the preset orthogonal sequence is a first orthogonal sequence or a second orthogonal sequence different from the first orthogonal sequence, wherein the first orthogonal sequence is used when there is no scheduling request to be transmitted, and wherein the second orthogonal sequence is used when there is a scheduling request to be transmitted.
8. The apparatus according to claim 7 , wherein the second orthogonal sequence is {1, −1, 1, −1, 1, −1, 1, −1, 1, −1, 1, −1, 1, −1, 1, −1}.