Remaining minimum system information communication method and related apparatus
A communication method and a related apparatus. The communication method includes determining, based on a starting location of a first remaining minimum system information RMSI detection window and a time index of a synchronization signal (SS)/physical broadcast channel (PBCH) block, a starting location of an RMSI detection window corresponding to a terminal device, where a value of the starting location of the RMSI detection window is one of four possible values of the starting location of the RMSI detection window, and receiving the RMSI based on the starting location of the RMSI detection window.
1. A communication method, comprising:
determining a starting location of a second physical downlink control channel (PDCCH) monitoring window of remaining minimum system information (RMSI) corresponding to a terminal device, wherein the starting location of the second PDCCH monitoring window of RMSI is related to a starting location of a first PDCCH monitoring window of RMSI and a time index of a synchronization signal (SS)/physical broadcast channel (PBCH) block, a value of the starting location of the first PDCCH monitoring window is one of four possible values, wherein each of the four possible values of the starting location of the first PDCCH monitoring window is represented by an index of a slot, and wherein the index of the slot is a value between 0 and 63; and
receiving RMSI control information according to the starting location of the second PDCCH monitoring window of RMSI.
2. The communication method according to claim 1 , wherein the starting location of the first PDCCH monitoring window of RMSI is one of a 0 ms location or a 5 ms location of a first frame in an RMSI detection period.
3. The communication method according to claim 1 , wherein, when there are at least two pieces of RMSI control information in one slot, a first piece of RMSI control information is disposed in a first symbol in the slot, and a second piece of RMSI control information is disposed in a second symbol in the slot.
4. The communication method according to claim 1 , wherein, when there are at least two pieces of RMSI control information in one slot, a first piece of RMSI control information is disposed in a first symbol in the slot, and a second piece of RMSI control information is disposed in a third symbol in the slot.
5. The communication method according to claim 1 , wherein the RMSI is transmitted in two frames.
6. The communication method according to claim 1 , wherein the second PDCCH monitoring window is in an RMSI detection period, which is fixed at 20 ms or is the same as a period of an SS/PBCH burst set.
7. The communication method according to claim 6 , wherein the RMSI detection period is configured as a fixed period or a multiple of a period of the PBCH.
8. The communication method according to claim 1 , wherein the starting location of the first PDCCH monitoring window is related to a subcarrier spacing.
9. The communication method according to claim 1 , wherein the second PDCCH monitoring window of RMSI is associated with one or more time indexes, and wherein each time index of the one or more time indexes corresponds to a SS/PBCH block.
10. The communication method according to claim 9 , further comprising: receiving a quantity of the time indexes with which the second PDCCH monitoring window of RMSI is associated.
11. A communications apparatus, comprising:
a processor; and
a non-transitory computer-readable storage medium storing a program to be executed by the processor, the program including instructions for:
determine a starting location of a second physical downlink control channel (PDCCH) monitoring window of remaining minimum system information (RMSI) corresponding to the communications apparatus, wherein the starting location of the second PDCCH monitoring window of RMSI is related to a starting location of a first PDCCH monitoring window of RMSI and a time index of a synchronization signal (SS)/physical broadcast channel (PBCH) block, and a value of the starting location of the first PDCCH monitoring window of RMSI is one of four possible values, wherein each of the four possible values of the starting location of the first PDCCH monitoring window of RMSI is represented by an index of a slot, and wherein the index of the slot is a value that is between 0 and 63; and
cause the apparatus to receive RMSI control information according to the starting location of the second PDCCH monitoring window of RMSI.
12. The communications apparatus according to claim 11 , wherein the starting location of the first PDCCH monitoring window is one of a 0 ms location or a 5 ms location of a first frame in an RMSI detection period.
13. The communications apparatus according to claim 11 , wherein, when there are at least two pieces of RMSI control information in one slot, a first piece of RMSI control information is disposed in a first symbol in the slot, and a second piece of RMSI control information is disposed in a second symbol in the slot.
14. The communications apparatus according to claim 11 , wherein, when there are at least two pieces of RMSI control information in one slot, a first piece of RMSI control information is disposed in a first symbol in the slot, and a second piece of RMSI control information is disposed in a third symbol in the slot.
15. The communications apparatus according to claim 11 , wherein the RMSI is transmitted in two frames.
16. The communications apparatus according to claim 11 , wherein the second PDCCH monitoring window is in an RMSI detection period, which is fixed at 20 ms or is the same as a period of an SS/PBCH burst set.
17. The communications apparatus according to claim 8 , wherein the starting location of the first PDCCH monitoring window of RMSI is related to a subcarrier spacing.
18. The communication apparatus according to claim 9 , wherein the second PDCCH monitoring window of RMSI is associated with one or more time indexes, and wherein each time index of the one or more time indexes corresponds to a SS/PBCH block.
19. The communication apparatus according to claim 18 , wherein the program further incudes instructions for receiving a quantity of the one or more time indexes with which the second PDCCH monitoring window of RMSI is associated.
20. The communication apparatus according to claim 11 , wherein the second PDCCH monitoring window is in an RMSI detection period, which is configured as a fixed period or a multiple of a period of the PBCH.
21. A communications apparatus, comprising:
a processor; and
a non-transitory computer-readable storage medium storing a program to be executed by the processor, the program including instructions for:
determine a starting location of a physical downlink control channel (PDCCH) monitoring window of remaining minimum system information (RMSI) corresponding to the communications apparatus, wherein the starting location of the second PDCCH monitoring window of RMSI is synchronization signal (SS)/physical broadcast channel (PBCH) block, and a value of the starting location of the first PDCCH monitoring window is one of four possible values, wherein each of the four possible values of the starting location of the first PDCCH monitoring window of RMSI is represented by an index of a slot, and wherein the index of the slot is a value that is between 0 and 63; and
cause the apparatus to send RMSI control information according to the starting location of the second PDCCH monitoring window of RMSI.
22. The communication apparatus according to claim 21 , wherein the starting location of the first PDCCH monitoring window is one of a 0 ms location or a 5 ms location of a first frame in an RMSI detection period.
23. The communication apparatus according to claim 21 , wherein, when there are at least two pieces of RMSI control information in one slot, a first piece of RMSI control information is disposed in a first symbol in the slot, and a second piece of RMSI control information is disposed in a second symbol in the slot.
24. The communication apparatus according to claim 21 , wherein, when there are at least two pieces of RMSI control information in one slot, a first piece of RMSI control information is disposed in a first symbol in the slot, and a second piece of RMSI control information is disposed in a third symbol in the slot.
25. The communications apparatus according to claim 21 , wherein the RMSI is transmitted in two frames.
26. The communications apparatus according to claim 21 , wherein the second PDCCH monitoring window is in an RMSI detection period, which is fixed at 20 ms or is the same as a period of an SS/PBCH burst set.
27. The communication apparatus according to claim 21 , wherein the second PDCCH monitoring window is in an RMSI detection period, which is configured as a fixed period or as a multiple of a period of the PBCH.
28. The communications apparatus according to claim 21 , wherein the starting location of the first PDCCH monitoring window of RMSI is related to a subcarrier spacing.
29. The communication apparatus according to claim 21 , wherein the second PDCCH monitoring window of RMSI is associated with one or more time indexes, and wherein each time index of the one or more time indexes corresponds to a SS/PBCH block.
30. The communication apparatus according to claim 29 , wherein the program further includes instructions for configuring a quantity of the one or more time indexes with which the second PDCCH monitoring window of RMSI is associated.