Beam determining method and apparatus, and storage medium

1 . A beam determining method, applied to a network device, comprising:

determining beam configuration information, wherein the beam configuration information at least comprises parameters configured to indicate receiving beams corresponding to at least two of N repeated transmissions of a downlink channel, where N is a natural number; and

determining transmitting beams corresponding to the at least two of the N repeated transmissions according to beam parameters corresponding to the at least two of the N repeated transmissions of the downlink channel, wherein the receiving beams and the transmitting beams corresponding to the at least two of the N repeated transmissions of the downlink channel are all activated;

the beam configuration information further comprises time granularity configured to indicate beam switching between candidate beams, wherein the time granularity is determined by at least one of:

granularity of frequency hopping,

granularity of variation of a pre-coded matrix in a time domain,

granularity of redundant version (RV) transformation, or

a number of repeated transmissions for a terminal; and

the parameters configured to indicate the receiving beams corresponding to the at least two of the N repeated transmissions of the downlink channel comprise at least one of:

beam patterns of the receiving beams corresponding to the at least two of the N repeated transmissions of the downlink channel, the beam patterns corresponding to at least two candidate beams in a candidate beam set; or

parameters of at least two control resource sets (CORESETs), wherein two repeated transmissions of a same physical downlink control channel (PDCCH) are carried in the at least two CORESETs;

wherein the method further comprises:

sending information with the transmitting beams to the terminal in the at least two of the N repeated transmissions.

2 . The method of claim 1 , wherein

a receiving beam and a transmitting beam corresponding to each of the N repeated transmissions of the downlink channel are not fully identical, or are completely different from each other.

3 . The method of claim 1 , wherein the parameters configured to indicate the receiving beams corresponding to the at least two of the N repeated transmissions of the downlink channel further comprise:

an identifier configured to identify the at least two candidate beams.

4 . The method of claim 3 , further comprising:

transmitting the beam configuration information.

5 . The method of claim 4 , wherein transmitting the beam configuration information comprises:

transmitting the beam configuration information via at least one of downlink control information (DCI) or a media access control element (MAC CE).

6 . The method of claim 3 , wherein the beam configuration information further comprises a parameter configured to indicate a duration of at least one candidate beam.

7 . The method of claim 6 , wherein a duration of each candidate beam is indicated by at least one of: an absolute time of transmitting the candidate beam, or a number of repeated transmissions of the candidate beam,

wherein the duration is determined by at least one of:

the granularity of frequency hopping,

the granularity of variation of the pre-coded matrix in the time domain,

the granularity of RV transformation, or

the number of repeated transmissions for the terminal.

8 . The method of claim 3 , wherein the at least two candidate beams correspond to a same CORESET, wherein at least two repeated transmissions of a same PDCCH are carried in the same CORESET, and the at least two repeated transmissions correspond to different candidate beams.

9 . A non-transitory computer-readable storage medium having stored therein instructions that, when executed by a processor of a network device, cause the network device to perform the beam determining method of claim 1 .

10 . A beam determining method, applied to a terminal, comprising:

acquiring beam configuration information, wherein the beam configuration information at least comprises parameters configured to indicate receiving beams corresponding to at least two of N repeated transmissions of a downlink channel, where N is a natural number; and

determining receiving beams corresponding to the at least two of the N repeated transmissions according to the beam configuration information,

wherein the receiving beams corresponding to the at least two of the N repeated transmissions of the downlink channel are all activated;

the beam configuration information further comprises: time granularity configured to indicate beam switching between candidate beams, wherein the time granularity is determined by at least one of:

granularity of frequency hopping,

granularity of variation of a pre-coded matrix in a time domain,

granularity of redundant version (RV) transformation, or

a number of repeated transmissions for the terminal; and

the parameters configured to indicate the receiving beams corresponding to the at least two of the N repeated transmissions of the downlink channel comprise at least one of:

beam patterns of the receiving beams corresponding to the at least two of the N repeated transmissions of the downlink channel, the beam patterns corresponding to at least two candidate beams in a candidate beam set; or

parameters of at least two control resource sets (CORESETs), wherein two repeated transmissions of a same physical downlink control channel (PDCCH) are carried in the at least two CORESETs;

wherein the method further comprises:

receiving information with the receiving beams from a network device in the at least two of the N repeated transmissions.

11 . The method of claim 10 , wherein

receiving beams corresponding to the N repeated transmissions of the downlink channel are not fully identical, or are completely different from each other.

12 . The method of claim 10 , wherein the parameters configured to indicate the receiving beams corresponding to the at least two of the N repeated transmissions of the downlink channel further comprise:

an identifier configured to identify the at least two candidate beams.

13 . The method of claim 12 , further comprising:

transmitting the beam configuration information.

14 . The method of claim 13 , wherein transmitting the beam configuration information comprises:

transmitting the beam configuration information via at least one of downlink control information (DCI) or a media access control element (MAC CE).

15 . The method of claim 12 , wherein the beam configuration information further comprises a parameter configured to indicate a duration of at least one candidate beam.

16 . The method of claim 15 , wherein a duration of each candidate beam is indicated by at least one of an absolute time of transmitting the candidate beam, or a number of repeated transmissions of the candidate beam, wherein the duration is determined according to at least one of:

the granularity of frequency hopping,

the granularity of variation of the pre-coded matrix in the time domain,

the granularity of RV transformation, or

the number of repeated transmissions for the terminal.

17 . The method of claim 12 , wherein the at least two candidate beams correspond to a same CORESET, wherein at least two repeated transmissions of a same PDCCH are carried in the same CORESET, and the at least two repeated transmissions correspond to different candidate beams.

18 . A terminal, comprising:

a processor; and

a memory for storing instructions executable by the processor,

wherein the processor is configured to perform the beam determining method of claim 10 .

19 . A non-transitory computer-readable storage medium having stored therein instructions that, when executed by a processor of a terminal, cause the terminal to perform the beam determining method of claim 10 .

20 . A network device, comprising:

a processor; and

a memory for storing instructions executable by the processor,

wherein the processor is configured to: determine beam configuration information, wherein the beam configuration information at least comprises parameters configured to indicate receiving beams corresponding to at least two of N repeated transmissions of a downlink channel, where N is a natural number; and

determine transmitting beams corresponding to the at least two of the N repeated transmissions according to beam parameters corresponding to the at least two of the N repeated transmissions of the downlink channel,

wherein the receiving beams and the transmitting beams corresponding to the at least two of the N repeated transmissions of the downlink channel are all activated;

the beam configuration information further comprises: time granularity configured to indicate beam switching between candidate beams, wherein the time granularity is determined by at least one of:

granularity of frequency hopping,

granularity of variation of a pre-coded matrix in a time domain,

granularity of redundant version (RV) transformation, or

a number of repeated transmissions for a terminal; and

the parameters configured to indicate the receiving beams corresponding to the at least two of the N repeated transmissions of the downlink channel comprise at least one of:

beam patterns of the receiving beams corresponding to the at least two of the N repeated transmissions of the downlink channel, the beam patterns corresponding to at least two candidate beams in a candidate beam set; or

parameters of at least two control resource sets (CORESETs), wherein two repeated transmissions of a same physical downlink control channel (PDCCH) are carried in the at least two CORESETs;

wherein the processor is further configured to:

send information with the transmitting beams to the terminal in the at least two of the N repeated transmissions.