Methods, devices, and systems for configuring signal resource for physical random access channel
The present disclosure describes methods, systems and devices for configuring signal resource for physical random access channel (PRACH). One method includes configuring, by a base station, signal resource for a PRACH by mapping, by the base station, a PRACH slot pattern with a pattern parameter. Another method includes configuring, by a user equipment, signal resource for a PRACH by mapping, by the user equipment, a PRACH slot pattern with a pattern parameter.
1. A method for wireless communication, comprising:
configuring, by a base station, signal resource for a physical random access channel (PRACH) by:
determining, by the base station, a PRACH slot pattern with a pattern parameter based on a PRACH subcarrier spacing (SCS) and a specific time duration,
wherein:
in response to a maximum number of PRACH slots in the specific time duration being 8 and the PRACH slot pattern comprising one PRACH slot, the pattern parameter comprises {7}; and
in response to a maximum number of PRACH slots in the specific time duration being 8 and the PRACH slot pattern comprising two PRACH slots, the pattern parameter comprises {3, 7}.
2. The method according to claim 1 , wherein:
the PRACH SCS comprises at least one of the following: 480 kHz or 960 kHz.
3. The method according to claim 1 , wherein:
the specific time duration comprises a slot duration of a single slot for a SCS being 60 kHz.
4. The method according to claim 1 , wherein:
in response to the maximum number of PRACH slots in the specific time duration being 16 and the PRACH slot pattern comprising one PRACH slot, the pattern parameter comprises {15}.
5. The method according to claim 1 , wherein:
in response to the maximum number of PRACH slots in the specific time duration being 16 and the PRACH slot pattern comprising two PRACH slots, the pattern parameter comprises a set of {A, B}, wherein A and B are different integers selecting from 0 to 15, inclusive.
6. A method for wireless communication, comprising:
determining, by a user equipment (UE), signal resource for a physical random access channel (PRACH) by:
determining, by the UE, a PRACH slot pattern with a pattern parameter based on a PRACH subcarrier spacing (SCS) and a specific time duration,
wherein:
in response to a maximum number of PRACH slots in the specific time duration being 8 and the PRACH slot pattern comprising one PRACH slot, the pattern parameter comprises {7}; and
in response to a maximum number of PRACH slots in the specific time duration being 8 and the PRACH slot pattern comprising two PRACH slots, the pattern parameter comprises {3, 7}.
7. The method according to claim 6 , wherein:
the PRACH SCS comprises at least one of the following: 480 kHz or 960 kHz.
8. The method according to claim 6 , wherein:
the specific time duration comprises a slot duration of a single slot for a SCS being 60 kHz.
9. The method according to claim 6 , wherein:
in response to the maximum number of PRACH slots in the specific time duration being 16 and the PRACH slot pattern comprising one PRACH slot, the pattern parameter comprises {15}.
10. The method according to claim 6 , wherein:
in response to the maximum number of PRACH slots in the specific time duration being 16 and the PRACH slot pattern comprising two PRACH slots, the pattern parameter comprises a set of {A, B}, wherein A and B are different integers selecting from 0 to 15, inclusive.
11. A wireless network node comprising:
a memory storing instructions; and
a processor in communication with the memory, wherein, when the processor executes the instructions, the processor is configured to cause the wireless network node to perform:
configuring signal resource for a physical random access channel (PRACH) by:
determining a PRACH slot pattern with a pattern parameter based on a PRACH subcarrier spacing (SCS) and a specific time duration,
wherein:
in response to a maximum number of PRACH slots in the specific time duration being 8 and the PRACH slot pattern comprising one PRACH slot, the pattern parameter comprises {7}; and
in response to a maximum number of PRACH slots in the specific time duration being 8 and the PRACH slot pattern comprising two PRACH slots, the pattern parameter comprises {3, 7}.
12. The wireless network node according to claim 11 , wherein:
the PRACH SCS comprises at least one of the following: 480 kHz or 960 kHz.
13. The wireless network node according to claim 11 , wherein:
the specific time duration comprises a slot duration of a single slot for a SCS being 60 kHz.
14. The wireless network node according to claim 11 , wherein:
in response to the maximum number of PRACH slots in the specific time duration being 16 and the PRACH slot pattern comprising one PRACH slot, the pattern parameter comprises {15}.
15. The wireless network node according to claim 11 , wherein:
in response to the maximum number of PRACH slots in the specific time duration being 16 and the PRACH slot pattern comprising two PRACH slots, the pattern parameter comprises a set of {A, B}, wherein A and B are different integers selecting from 0 to 15, inclusive.
16. An apparatus comprising:
a memory storing instructions; and
a processor in communication with the memory, wherein, when the processor executes the instructions, the processor is configured to cause the apparatus to perform:
determining signal resource for a physical random access channel (PRACH) by:
determining a PRACH slot pattern with a pattern parameter based on a PRACH subcarrier spacing (SCS) and a specific time duration,
wherein:
in response to a maximum number of PRACH slots in the specific time duration being 8 and the PRACH slot pattern comprising one PRACH slot, the pattern parameter comprises {7}; and
in response to a maximum number of PRACH slots in the specific time duration being 8 and the PRACH slot pattern comprising two PRACH slots, the pattern parameter comprises {3, 7}.
17. The apparatus according to claim 16 , wherein:
the PRACH SCS comprises at least one of the following: 480 kHz or 960 kHz.
18. The apparatus according to claim 16 , wherein:
the specific time duration comprises a slot duration of a single slot for a SCS being 60 kHz.
19. The apparatus according to claim 16 , wherein:
in response to the maximum number of PRACH slots in the specific time duration being 16 and the PRACH slot pattern comprising one PRACH slot, the pattern parameter comprises {15}.
20. The apparatus according to claim 16 , wherein:
in response to the maximum number of PRACH slots in the specific time duration being 16 and the PRACH slot pattern comprising two PRACH slots, the pattern parameter comprises a set of {A, B}, wherein A and B are different integers selecting from 0 to 15, inclusive.