Wireless communication method, network device, user equipment, and system
A wireless communication method, a network device, user equipment, and a system are provided. The method includes: generating, by a network device, control information, where the control information includes first indication information indicating a time domain resource for first transmission between user equipment and the network device, and duration of occupying a resource by one transmission of the first transmission is less than 1 millisecond; and sending, by the network device, the control information to the user equipment. The user equipment may obtain, according to the control information, the time domain resource for communicating with the network device by using the first transmission, and communicate with the network device on the obtained time domain resource. Therefore, a transmission time delay can be shortened, and user experience and radio network performance can be greatly improved.
1. A method performed by a network device, the method comprising:
sending uplink transmission resource indication information to a terminal device,
wherein the uplink transmission resource indication information indicates an available resource in each subframe of M consecutive subframes, and
wherein M is an integer greater than or equal to 2; and
receiving, in the available resource in the M consecutive subframes, data packets from the terminal device, wherein the data packets are redundancy versions (RVs) of a same data packet, or the data packets are copies of a same data packet,
wherein the data packets are received on the available resource in the M consecutive subframes indicated by the uplink transmission resource indication information,
wherein the available resource in each subframe of the M consecutive subframes is a part of symbols in the subframe, and
wherein the available resource in each subframe of the M consecutive subframes comprises a same quantity of symbols which are consecutive.
2. The method according to claim 1 , wherein the uplink transmission resource indication information comprises information of subframe number associated with each subframe of the M consecutive subframes, or information of a time domain symbol location and a frequency domain location of the available resource in each subframe of the M consecutive subframes.
3. The method according to claim 2 , wherein the uplink transmission resource indication information further comprises information of an allocation type of the available resource.
4. The method according to claim 1 , wherein the data packets are numbered according to a sequence {0, 2, 3, 1} cyclically in response to the data packets being different retransmission RVs of a same data packet.
5. The method according to claim 1 , wherein the available resource in each subframe of the M consecutive subframes is all or a part of a remaining resource, excluding a resource occupied by a physical downlink control channel (PDCCH), in a corresponding subframe.
6. A method performed by a terminal device, the method comprising:
receiving uplink transmission resource indication information from a network device,
wherein the uplink transmission resource indication information indicates an available resource in each subframe of M consecutive subframes, and
wherein M is an integer greater than or equal to 2; and
sending data packets to the network device in the available resource in the M consecutive subframes,
wherein the data packets are redundancy versions (RVs) of a same data packet, or the data packets are copies of a same data packet,
wherein the data packets are received on the available resource in the M consecutive subframes indicated by the uplink transmission resource indication information,
wherein the available resource in each subframe of the M consecutive subframes is a part of symbols in the subframe, and
wherein the available resource in each subframe of the M consecutive subframes comprises a same quantity of symbols which are consecutive.
7. The method according to claim 6 , wherein the uplink transmission resource indication information comprises information of subframe number associated with each subframe of the M consecutive subframes, or information of a time domain symbol location and a frequency domain location of the available resource in each subframe of the M consecutive subframes.
8. The method according to claim 7 , wherein the uplink transmission resource indication information further comprises information of an allocation type of the available resource.
9. The method according to claim 6 , wherein the data packets are numbered according to a sequence {0, 2, 3, 1} cyclically in response to the data packets being different retransmission RVs of a same data packet.
10. The method according to claim 6 , wherein the available resource in each subframe of the M consecutive subframes is all or a part of a remaining resource, excluding a resource occupied by a physical downlink control channel (PDCCH), in a corresponding subframe.
11. A network device comprising a transmitter, a processor and a receiver, wherein:
the transmitter is configured to cooperate with the processor to send uplink transmission resource indication information to a terminal device,
wherein the uplink transmission resource indication information indicates an available resource in each subframe of M consecutive subframes, and
wherein M is an integer greater than or equal to 2; and
the receiver is configured to cooperate with the processor to receive data packets from the terminal device in the available resource in the M consecutive subframes,
wherein the data packets are redundancy versions (RVs) of a same data packet, or the data packets are copies of a same data packet,
wherein the data packets are received on the available resource in the M consecutive subframes indicated by the uplink transmission resource indication information,
wherein the available resource in each subframe of the M consecutive subframes is a part of symbols in the subframe, and
wherein the available resource in each subframe of the M consecutive subframes comprises a same quantity of symbols which are consecutive.
12. The network device according to claim 11 , wherein the uplink transmission resource indication information comprises information of subframe number associated with each subframe of the M consecutive subframes, or information of a time domain symbol location and a frequency domain location of the available resource in each subframe of the M consecutive subframes.
13. The network device according to claim 12 , wherein the uplink transmission resource indication information further comprises information of an allocation type of the available resource.
14. The network device according to claim 11 , wherein the data packets are numbered according to a sequence {0, 2, 3, 1} cyclically in response to the data packets being different retransmission RVs of a same data packet.
15. The network device according to claim 11 , wherein the available resource in each subframe of the M consecutive subframes is all or a part of a remaining resource, excluding a resource occupied by a physical downlink control channel (PDCCH), in a corresponding subframe.
16. A terminal device comprising a transmitter, a processor and a receiver, wherein:
the receiver is configured to cooperate with the processor to receive uplink transmission resource indication information from a network device,
wherein the uplink transmission resource indication information indicates an available resource in each subframe of M consecutive subframes, and
wherein M is an integer greater than or equal to 2; and
the transmitter is configured to cooperate with the processor to send data packets to the network device in the available resource in the M consecutive subframes,
wherein the data packets are redundancy versions (RVs) of a same data packet, or the data packets are copies of a same data packet,
wherein the data packets are received on the available resource in the M consecutive subframes indicated by the uplink transmission resource indication information,
wherein the available resource in each subframe of the M consecutive subframes is a part of symbols in the subframe, and
wherein the available resource in each subframe of the M consecutive subframes comprises a same quantity of symbols which are consecutive.
17. The terminal device according to claim 16 , wherein the uplink transmission resource indication information comprises information of subframe number associated with each subframe of the M consecutive subframes, or information of a time domain symbol location and a frequency domain location of the available resource in each subframe of the M consecutive subframes.
18. The terminal device according to claim 17 , wherein the uplink transmission resource indication information further comprises information of an allocation type of the available resource.
19. The terminal device according to claim 16 , wherein the data packets are numbered according to a sequence {0, 2, 3, 1} cyclically in response to the data packets being different retransmission RVs of a same data packet.
20. The terminal device according to claim 16 , wherein the available resource in each subframe of the M consecutive subframes is all or a part of a remaining resource, excluding a resource occupied by a physical downlink control channel (PDCCH), in a corresponding subframe.