Physical resource block PRB grid indication method and device
A method for wireless communication and an apparatus are provided, comprising: determining location information, wherein the location information indicating a quantity of M subcarrier spacings between a second location of a physical resource block (PRB) in a system common PRB grid and a first location in a synchronization signal block, the system common PRB grid having a first subcarrier spacing, the first location being a beginning subcarrier of the synchronization signal block and the first location overlapping with the PRB, M is a value of a preset value set, and the preset value set is {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23}; sending the location information via a broadcast message.
1. A method, comprising:
obtaining location information, wherein the location information indicates an offset between a second location of a physical resource block (PRB) in a system common PRB grid and a first location in a synchronization signal block, the system common PRB grid having a first subcarrier spacing, the first location being a beginning subcarrier of the synchronization signal block and the first location overlapping with the PRB in the system common PRB grid, and the second location being a boundary location of the PRB in the system common PRB grid, wherein a value of the offset is M indicating an offset of M subcarriers between the first location and the second location, M is a value of a preset value set, and the preset value set is {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23}; and
sending the location information via a physical broadcast channel.
2. The method according to claim 1 , wherein the first subcarrier spacing is 15 kHz.
3. The method according to claim 1 , wherein the first subcarrier spacing is 30 kHz.
4. The method according to claim 1 , wherein the PRB comprises twelve subcarriers.
5. The method according to claim 1 , wherein the synchronization signal block comprises a primary synchronization signal, a secondary synchronization signal, and the physical broadcast channel.
6. The method according to claim 1 , wherein the location information occupies 5 bits of the physical broadcast channel.
7. An apparatus, comprising:
a non-transitory memory having a storage medium, wherein the non-transitory memory stores a program; and
a processor in communication with the non-transitory memory, wherein the processor is configured to execute the program to cause the apparatus to:
obtain location information, wherein the location information indicates an offset between a second location of a physical resource block (PRB) in a system common PRB grid and a first location in a synchronization signal block, the system common PRB grid having a first subcarrier spacing, the first location being a beginning subcarrier of the synchronization signal block and the first location overlapping with the PRB, and the second location being a boundary location of the PRB in the system common PRB grid, wherein a value of the offset is M indicating an offset of M subcarriers between the first location and the second location, M is a value of a preset value set, and the preset value set is {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23}; and
send the location information via a physical broadcast channel.
8. The apparatus according to claim 7 , wherein the first subcarrier spacing is 15 kHz.
9. The apparatus according to claim 7 , wherein the first subcarrier spacing is 30 kHz.
10. The apparatus according to claim 7 , wherein the PRB comprises twelve subcarriers.
11. The apparatus according to claim 7 , wherein the synchronization signal block comprises a primary synchronization signal, a secondary synchronization signal, and the physical broadcast channel.
12. The apparatus according to claim 7 , wherein the apparatus is a chip.
13. The apparatus according to claim 7 , wherein the apparatus is a network device.
14. The apparatus according to claim 7 , wherein the location information occupies 5 bits of the physical broadcast channel.
15. A non-transitory computer readable medium, comprising a program that, when executed by a processor, causes the processor to perform the following:
obtaining location information, wherein the location information indicates an offset between a second location of a physical resource block (PRB) in a system common PRB grid and a first location in a synchronization signal block, the system common PRB grid having a first subcarrier spacing, the first location being a beginning subcarrier of the synchronization signal block and the first location overlapping with the PRB, and the second location being a boundary location of the PRB in the system common PRB grid, wherein a value of the offset is M indicating an offset of M subcarriers between the first location and the second location, M is a value of a preset value set, and the preset value set is {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23}; and
sending the location information via a physical broadcast channel.
16. The non-transitory computer readable medium according to claim 15 , wherein the first subcarrier spacing is 15 kHz.
17. The non-transitory computer readable medium according to claim 15 , wherein the first subcarrier spacing is 30 kHz.
18. The non-transitory computer readable medium according to claim 15 , wherein the PRB comprises twelve subcarriers.
19. The non-transitory computer readable medium according to claim 15 , wherein the synchronization signal block comprises a primary synchronization signal, a secondary synchronization signal, and the physical broadcast channel.
20. The non-transitory computer readable medium according to claim 15 , wherein the location information occupies 5 bits of the physical broadcast channel.
21. An apparatus, comprising:
a non-transitory memory having a storage medium, wherein the non-transitory memory stores a program; and
a processor in communication with the non-transitory memory, wherein the processor is configured to execute the program to cause the apparatus to:
receive a physical broadcast channel; and
obtain location information carried on the physical broadcast channel, wherein the location information indicates an offset between a second location of a physical resource block (PRB) in a system common PRB grid and a first location in a synchronization signal block, the system common PRB grid having a first subcarrier spacing, the first location being a beginning subcarrier of the synchronization signal block and the first location overlapping with the PRB, and the second location being a boundary location of the PRB in the system common PRB grid, wherein a value of the offset is M indicating an offset of M subcarriers between the first location and the second location, M is a value of a preset value set, and the preset value set is {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23}.
22. The apparatus according to claim 21 , wherein the location information occupies 5 bits of the physical broadcast channel.
23. The apparatus according to claim 21 , wherein the synchronization signal block comprises a primary synchronization signal, a secondary synchronization signal, and the physical broadcast channel.
24. The apparatus according to claim 21 , wherein the apparatus is a terminal device.
25. A method, comprising:
receiving a physical broadcast channel; and
obtaining location information carried on the physical broadcast channel; wherein the location information indicates an offset between a second location of a physical resource block (PRB) in a system common PRB grid and a first location in a synchronization signal block, the synchronization signal block including the physical broadcast channel, a primary synchronization signal and a secondary synchronization signal, the system common PRB grid having a first subcarrier spacing, the first location being a beginning subcarrier of the synchronization signal block and the first location overlapping with the PRB, and the second location being a boundary location of the PRB in the system common PRB grid, wherein a value of the offset is M indicating an offset of M subcarriers between the first location and the second location, M is a value of a preset value set, and the preset value set is {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23}.
26. The method according to claim 25 , wherein the location information occupies 5 bits of the physical broadcast channel.
27. The method according to claim 25 , wherein the boundary location of the PRB is a left boundary location of the PRB.