Wireless communication method, terminal device, and network device

1 . A wireless communication method, comprising:

receiving a common Physical Downlink Control Channel (PDCCH) on at least one Multimedia Broadcast Service Bandwidth Part (MBS BWP) associated with an active dedicated unicast BWP, the at least one MBS BWP being a Common Frequency Resource (CFR) for MBS, and each of the at least one MBS BWP having a frequency domain range within a frequency domain range of the active dedicated unicast BWP; and

receiving a common Physical Downlink Shared Channel (PDSCH) scheduled by the common PDCCH;

wherein a maximum number of bits of common Downlink Control Information (DCI) carried in the common PDCCH is predefined; and

a number of bits of the common DCI is configured via Radio Resource Control (RRC) layer signaling; wherein

the common PDCCH is transmitted in a Common Search Space (CSS); and

an index of the CSS is identical with an index of a user equipment specific Search Space (USS) configured to a terminal device;

wherein the method further comprises:

when a number of times that the terminal device performs blind detection on the PDCCH in a certain time slot exceeds capability of the terminal device, determining that a priority of the CSS is identical with a priority of the USS.

2 . The method according to claim 1 , wherein Cyclic Redundancy Check (CRC) of the common PDCCH is scrambled by a Groupcast Radio Network Temporary Identifier (G-RNTI), and when a number of bits of different DCI that need to be detected by a terminal in a cell is calculated, the common DCI is not counted in a number of bits of DCI scrambled by a Cell Radio Network Temporary Identifier (C-RNTI).

3 . The method according to claim 1 , wherein an index of the CSS is configured in PDCCH configuration.

4 . The method according to claim 3 , further comprising:

when a number of times that the terminal device performs blind detection on the PDCCH in a certain time slot exceeds capability of the terminal device, determining a priority of the CSS according to the index of the CSS.

5 . The method according to claim 1 , wherein the number of bits of the common DCI is aligned with a number of bits of other DCI.

6 . The method according to claim 1 , wherein the maximum number of bits of the common DCI is equal to 126 or 128.

7 . A terminal device, comprising:

a processor, and

a memory having a computer program stored thereon,

wherein the processor is configured to invoked and executed the computer program stored in the memory, to enable the terminal device to perform:

receiving a common Physical Downlink Control Channel (PDCCH) on at least one Multimedia Broadcast Service Bandwidth Part (MBS BWP) associated with an active dedicated unicast BWP, the at least one MBS BWP being a Common Frequency Resource (CFR) for MBS, and each of the at least one MBS BWP having a frequency domain range within a frequency domain range of the active dedicated unicast BWP; and

receiving a common Physical Downlink Shared Channel (PDSCH) scheduled by the common PDCCH;

wherein a maximum number of bits of common Downlink Control Information (DCI) carried in the common PDCCH is predefined; and

a number of bits of the common DCI is configured via Radio Resource Control (RRC) layer signaling; wherein

the common PDCCH is transmitted in a Common Search Space (CSS); and

an index of the CSS is identical with an index of a user equipment specific Search Space (USS) configured to the terminal device;

wherein the processor is configured to invoked and executed the computer program stored in the memory, to enable the terminal device further to perform:

when a number of times that the terminal device performs blind detection on the PDCCH in a certain time slot exceeds capability of the terminal device, determining that a priority of the CSS is identical with a priority of the USS.

8 . The terminal device according to claim 7 , wherein Cyclic Redundancy Check (CRC) of the common PDCCH is scrambled by a Groupcast Radio Network Temporary Identifier (G-RNTI), and when a number of bits of different DCI that need to be detected by a terminal in a cell is calculated, the common DCI is not counted in a number of bits of DCI scrambled by a Cell Radio Network Temporary Identifier (C-RNTI).

9 . The terminal device according to claim 7 , wherein an index of the CSS is configured in PDCCH configuration.

10 . The terminal device according to claim 9 , wherein the processor is configured to invoked and executed the computer program stored in the memory, to enable the terminal device further to perform:

when a number of times that the terminal device performs blind detection on the PDCCH in a certain time slot exceeds capability of the terminal device, determining a priority of the CSS according to the index of the CSS.

11 . The terminal device according to claim 7 , wherein the number of bits of the common DCI is aligned with a number of bits of other DCI.

12 . The terminal device according to claim 7 , wherein the maximum number of bits of the common DCI is equal to 126 or 128.

13 . A network device, comprising:

a processor, and

a memory having a computer program stored thereon,

wherein the processor is configured to invoke and execute the computer program stored in the memory, to enable the network device to perform:

transmitting a common Physical Downlink Control Channel (PDCCH) on at least one Multimedia Broadcast Service Bandwidth Part (MBS BWP) associated with an active dedicated unicast BWP, the at least one MBS BWP being a Common Frequency Resource (CFR) for MBS, and each of the at least one MBS BWP having a frequency domain range within a frequency domain range of the active dedicated unicast BWP; and

transmitting a common Physical Downlink Shared Channel (PDSCH) scheduled by the common PDCCH;

wherein a maximum number of bits of common Downlink Control Information (DCI) carried in the common PDCCH is predefined; and

a number of bits of the common DCI is configured via Radio Resource Control (RRC) layer signaling; wherein

the common PDCCH is transmitted in a Common Search Space (CSS); and

an index of the CSS is identical with an index of a user equipment specific Search Space (USS) configured to a terminal device;

wherein the processor is configured to invoke and execute the computer program stored in the memory, to enable the network device further to perform:

when a number of times that the terminal device performs blind detection on the PDCCH in a certain time slot exceeds capability of the terminal device, determining that a priority of the CSS is identical with a priority of the USS.

14 . The network device according to claim 13 , wherein Cyclic Redundancy Check (CRC) of the common PDCCH is scrambled by a Groupcast Radio Network Temporary Identifier (G-RNTI), and when a number of bits of different DCI that need to be detected by a terminal in a cell is calculated, the common DCI is not counted in a number of bits of DCI scrambled by a Cell Radio Network Temporary Identifier (C-RNTI).

15 . The network device according to claim 13 , wherein an index of the CSS is configured in PDCCH configuration.

16 . The network device according to claim 15 , wherein the processor is configured to invoke and execute the computer program stored in the memory, to enable the network device further to perform:

when a number of times that the terminal device performs blind detection on the PDCCH in a certain time slot exceeds capability of the terminal device, determining a priority of the CSS according to the index of the CSS.

17 . The network device according to claim 13 , wherein the number of bits of the common DCI is aligned with a number of bits of other DCI.

18 . The network device according to claim 13 , wherein the maximum number of bits of the common DCI is equal to 126 or 128.