Method and device for scheduling uplink data based on carrier sensing of at least one beam
An uplink data scheduling method and device are provided. The method comprises: a terminal device receiving a first signalling sent by a network device, wherein the first signalling comprises beam information of M beams, and M is a positive integer; the terminal device carrying out carrier sensing on the M beams in sequence according to the first signalling; and the terminal device selecting, according to the sensing result, one beam of the M beams to transmit an uplink channel to the network device.
1. A method for scheduling Uplink (UL) data, comprising:
receiving, by a terminal device, first signaling sent by a network device, the first signaling comprising beam information of M beams, M being a positive integer greater than 1;
performing, by the terminal device, carrier sensing on the M beams in sequence according to the first signaling until it is sensed on an Nth beam that a channel is idle, N being a positive integer less than or equal to M; and
sending, by the terminal device, a UL channel to the network device through the Nth beam,
wherein performing, by the terminal device, carrier sensing on the M beams in sequence according to the first signaling comprises:
performing, by the terminal device, according to priorities of the M beams, carrier sensing on the M beams one by one in a sequence from high to low priorities,
wherein a plurality of beams on which carrier sensing is performed have one-to-one successive sensing windows, and a sensing window used by the terminal device to perform carrier sensing on each beam of the plurality of beams on which carrier sensing is performed is the sensing window corresponding to the beam; and
wherein the UL channel is a Physical Uplink Shared Channel (PUSCH), and the first signaling further comprises information of a first time length, the first time length being a time length between a slot, a starting time-domain symbol or an ending time-domain symbol where a Physical Downlink Control Channel (PDCCH) sent to the terminal device by the network device is located and a starting time point of a first sensing window, and the first sensing window being a sensing window which corresponds to a beam sensed firstly.
2. The method of claim 1 , wherein the beam information is an index of Sounding Reference Signal (SRS) resources.
3. The method of claim 1 , before performing, by the terminal device, carrier sensing on the M beams one by one, further comprising:
receiving, by the terminal device, first indication information sent by the network device, the first indication information being configured to indicate information of each sensing window; or
acquiring, by the terminal device, the information, pre-stored in the terminal device, of each sensing window;
wherein the information of each sensing window comprises a time length of the sensing window and/or a starting time position of the sensing window.
4. The method of claim 1 , wherein the UL channel is the PUSCH, and the first signaling further comprises information of a second time length, the second time length being a time length between a slot or a location of an ending time-domain symbol where the PUSCH is sent to the network device by the terminal device and a slot or a starting time-domain symbol where a downlink feedback channel is located, and the downlink feedback channel being configured for the network device to send feedback response information for the PUSCH to the terminal device.
5. A method for scheduling Uplink (UL) data, comprising:
sending, by a network device, first signaling to a terminal device, the first signaling comprising beam information of M beams, M being a positive integer greater than 1; and
receiving, by the network device, a UL channel which is sent by the terminal device through an Nth beam of the M beams, the Nth beam being a beam on which the terminal device senses that a channel is idle when performing carrier sensing on the M beams in sequence, and N being a positive integer less than or equal to M,
wherein a plurality of beams on which carrier sensing is performed have one-to-one successive sensing windows, and a sensing window used by the terminal device to perform carrier sensing on each beam of the plurality of beams on which carrier sensing is performed is the sensing window corresponding to the beam; and
wherein the UL channel is a Physical Uplink Shared Channel (PUSCH), and the first signaling further comprises information of a first time length, the first time length being a time length between a slot, a starting time-domain symbol or an ending time-domain symbol where a Physical Downlink Control Channel (PDCCH) sent to the terminal device by the network device is located and a starting time point of a first sensing window, and the first sensing window being a sensing window which corresponds to a beam sensed firstly.
6. The method of claim 5 , before the network device sends the first signaling to the terminal device, further comprising:
sending, by the network device, second indication information to the terminal device, the second indication information being configured to indicate a value of M.
7. A terminal device, comprising a processor, a transceiver and a memory, wherein
the memory is configured to store instructions capable of running on the processor;
the transceiver is configured to receive first signaling sent by a network device, the first signaling comprising beam information of M beams, M being a positive integer greater than 1; and
the processor is configured to perform carrier sensing on the M beams in sequence according to the first signaling until it is sensed on an Nth beam that a channel is idle, N being a positive integer less than or equal to M, and wherein
the transceiver is further configured to send a UL channel to the network device through the Nth beam,
wherein the processor is specifically configured to:
perform, according to priorities of the M beams, carrier sensing on the M beams one by one in a sequence from high to low priorities,
wherein a plurality of beams and on which carrier sensing is performed have one-to-one successive sensing windows, and a sensing window used by the terminal device to perform carrier sensing on each beam of the plurality of beams on which carrier sensing is performed is the sensing window corresponding to the beam; and
wherein the UL channel is a Physical Uplink Shared Channel (PUSCH), and the first signaling further comprises information of a first time length, the first time length being a time length between a slot, a starting time-domain symbol or an ending time-domain symbol where a Physical Downlink Control Channel (PDCCH) sent to the terminal device by the network device is located and a starting time point of a first sensing window, and the first sensing window being a sensing window which corresponds to a beam sensed firstly.
8. The terminal device of claim 7 , wherein the beam information is an index of Sounding Reference Signal (SRS) resources.
9. The terminal device of claim 7 , wherein the processor is further configured to:
receive first indication information sent by the network device through the transceiver unit, the first indication information being configured to indicate information of each sensing window; or
acquire the information, pre-stored in the terminal device, of each sensing window;
wherein the information of each sensing window comprises a time length of the sensing window and/or a starting time position of the sensing window.
10. The terminal device of claim 7 , wherein the UL channel is the PUSCH, and the first signaling further comprises information of a second time length,
the second time length being a time length between a slot or a location of an ending time-domain symbol where the PUSCH is sent to the network device by the terminal device and a slot or a starting time-domain symbol where a downlink feedback channel is located, and the downlink feedback channel being configured for the network device to send feedback response information for the PUSCH to the terminal device.
11. A network device, comprising a processor, a transceiver and a memory, wherein
the memory is configured to store instructions capable of running on the processor;
the transceiver is configured to send first signaling to a terminal device, the first signaling comprising beam information of M beams, M being a positive integer greater than 1, and wherein
the transceiver is further configured to receive an Uplink (UL) channel which is sent by the terminal device through an Nth beam of the M beams, the Nth beam being a beam on which the terminal device senses that a channel is idle when performing carrier sensing on the M beams in sequence, and N being a positive integer less than or equal to M,
wherein a plurality of beams on which carrier sensing is performed have one-to-one successive sensing windows, and a sensing window used by the terminal device to perform carrier sensing on each beam of the plurality of beams on which carrier sensing is performed is the sensing window corresponding to the beam; and
wherein the UL channel is a Physical Uplink Shared Channel (PUSCH), and the first signaling further comprises information of a first time length, the first time length being a time length between a slot, a starting time-domain symbol or an ending time-domain symbol where a Physical Downlink Control Channel (PDCCH) sent to the terminal device by the network device is located and a starting time point of a first sensing window, and the first sensing window being a sensing window which corresponds to a beam sensed firstly.