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 used to indicate 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 wireless communication method performed by a network device, the method comprising:
generating control information, wherein the control information comprises first indication information used to indicate a time domain resource for transmission between user equipment and the network device, wherein the time domain resource consists of part of symbols in a first subframe; and
sending a physical downlink shared channel (PDSCH) to the user equipment using the time domain resource, wherein a first K time domain symbols of the time domain resource carries the control information, K is positive integers.
2. The method according to claim 1 , wherein a first M time domain symbols in the first subframe carries a PDCCH, wherein the PDCCH carries the control information and the time domain symbols do not comprise the time domain symbols carries the PDCCH, M is a positive integer.
3. The method according to claim 1 , wherein a first 1 to 4 time domain symbols in the first subframe carry a legacy downlink control information, the time domain symbols do not comprise time domain symbols carries the legacy downlink control information.
4. The method according to claim 1 , wherein frequency domain bandwidth is divided into multiple frequency band parts, and if the control information is at a frequency band part, the transmission between the user equipment and the network device is performed at the frequency band part.
5. A wireless communication method performed by user equipment, the method comprising:
receiving a physical downlink shared channel (PDSCH) from a network device, using a time domain resource in a first subframe, wherein a first K time domain symbols of the time domain resource carries a control information, K is positive integers,
wherein the control information comprises first indication information used to indicate a time domain resource for transmission between the user equipment and the network device, and
wherein the time domain resource consists of part of the symbols in a first subframe; and
communicating with the network device according to the control information.
6. The method according to claim 5 , wherein a first M time domain symbols in the first subframe carries a PDCCH, wherein the PDCCH carries the control information and the time domain symbols do not comprise the time domain symbols carries the PDCCH, M is a positive integer.
7. The method according to claim 5 , wherein a first 1 to 4 time domain symbols in the first subframe carry a legacy downlink control information, the time domain symbols do not comprise time domain symbols carries the legacy downlink control information.
8. The method according to claim 5 , wherein frequency domain bandwidth is divided into multiple frequency band parts, and if the control information is at a frequency band part, the transmission between the user equipment and the network device is performed at the frequency band part.
9. A network device comprising a processor and a transmitter, wherein:
the processor is configured to generate control information,
wherein the control information comprises first indication information used to indicate a time domain resource for transmission between user equipment and the network device, and
wherein the time domain resource consists of part of the symbols in a first subframe; and
the transmitter is configured to cooperate with the processor to send a physical downlink shared channel (PDSCH) to the user equipment, using the time domain resource, wherein a first K time domain symbols of the time domain resource carries the control information, K is positive integers.
10. The network device according to claim 9 , wherein a first M time domain symbols in the first subframe carries a PDCCH, wherein the PDCCH carries the control information and the time domain symbols do not comprise the time domain symbols carries the PDCCH, M is a positive integer.
11. The network device according to claim 9 , wherein a first 1 to 4 time domain symbols in the first subframe carry a legacy downlink control information, the time domain symbols do not comprise time domain symbols carries the legacy downlink control information.
12. The network device according to claim 9 , wherein frequency domain bandwidth is divided into multiple frequency band parts, and if the control information is at a frequency band part, the transmission between the user equipment and the network device is performed at the frequency band part.
13. User equipment comprising a processor, a transmitter and a receiver, wherein:
the receiver is configured to cooperate with the processor to receive a physical downlink shared channel (PDSCH) from a network device, using a time domain resource in a first subframe, wherein a first K time domain symbols of the time domain resource carries a control information, K is positive integers,
wherein the control information comprises first indication information used to indicate a time domain resource for transmission between the user equipment and the network device, and
wherein the time domain resource consists of part of the symbols in a first subframe; and
the processor is configured to control the transmitter and the receiver to communicate with the network device according to the control information.
14. The user equipment according to claim 13 , wherein a first M time domain symbols in the first subframe carries a PDCCH, wherein the PDCCH carries the control information and the time domain symbols do not comprise the time domain symbols carries the PDCCH, M is a positive integer.
15. The user equipment according to claim 13 , wherein a first 1 to 4 time domain symbols in the first subframe carry a legacy downlink control information, the time domain symbols do not comprise time domain symbols carries the legacy downlink control information.
16. The user equipment according to claim 13 , wherein frequency domain bandwidth is divided into multiple frequency band parts, and if the control information is at a frequency band part, the transmission between the user equipment and the network device is performed at the frequency band part.
17. A computer program product comprising a non-transitory computer-readable medium storing computer executable instructions that when executed by a processor instruct the processor to implement operations including:
receiving a physical downlink shared channel (PDSCH) from a network device, using a time domain resource in a first subframe, wherein a first K time domain symbols of the time domain resource carries the control information, K is positive integers,
wherein the control information comprises first indication information used to indicate a time domain resource for transmission between the user equipment and the network device, and
wherein the time domain resource consists of part of the symbols in a first subframe; and
communicating with the network device according to the control information.
18. The computer program product according to claim 17 , wherein a first M time domain symbols in the first subframe carries a PDCCH, wherein the PDCCH carries the control information and the time domain symbols do not comprise the time domain symbols carries the PDCCH, M is a positive integer.
19. The computer program product according to claim 17 , wherein a first 1 to 4 time domain symbols in the first subframe carry a legacy downlink control information, the time domain symbols do not comprise time domain symbols carries the legacy downlink control information.
20. The computer program product according to claim 17 , wherein frequency domain bandwidth is divided into multiple frequency band parts, and if the control information is at a frequency band part, the transmission between the user equipment and the network device is performed at the frequency band part.