Method and device for transmitting/receiving S-SSB in NR V2X

Patent metadata

Field	Value
Publication number	US-11419080-B2
Application number	US-202217592158-A
Country	US
Kind code	B2
Filing date	Feb 3, 2022
Priority date	Aug 28, 2019
Publication date	Aug 16, 2022
Grant date	Aug 16, 2022

Abstract

Provided are a method for a first device carrying out wireless communication, and a device supporting same. The method may comprise the steps of: receiving, from a base station, information on the number of sidelink synchronization signal blocks (S-SSBs) transmitted in an S-SSB period; and, on the basis of the information on the number of S-SSBs, transmitting, in the S-SSB period, one or more S-SSB including a sidelink primary synchronization signal (S-PSS), a sidelink secondary synchronization signal (S-SSS) and a physical sidelink broadcast channel (PSBCH). Here, the number of S-SSBs may be selected from among one or more element included in a set of the number of S-SSBs transmittable in the S-SSB period, wherein the set of the number of S-SSBs transmittable in the S-SSB period may be configured differently on the basis of sub-carrier spacing (SCS) and frequency range (FR).

First claim

What is claimed is:

1. A method for performing, by a first device, wireless communication, the method comprising:
receiving, from a base station, information related to a number of sidelink synchronization signal blocks (S-SSBs) transmitted within a S-SSB period; and
transmitting one or more S-SSBs including a sidelink primary synchronization signal (S-PSS), a sidelink secondary synchronization signal (S-SSS) and a physical sidelink broadcast channel (PSBCH), within the S-SSB period, based on the information related to the number of S-SSBs,
wherein the number of S-SSBs is selected from one or more elements included in a set of a number of S-SSBs allowed to transmit within the S-SSB period, and
wherein the set of the number of S-SSBs allowed to transmit within the S-SSB period is configured differently based on a sub-carrier spacing (SCS) and a frequency range (FR).

2. The method of claim 1 , wherein the FR includes a first FR and a second FR, and
wherein the first FR is a frequency range lower than the second FR.

3. The method of claim 2 , wherein a maximum value of elements included in a set of a number of S-SSBs allowed to transmit which is related to the first FR is less than a maximum value of elements included in a set of a number of S-SSBs allowed to transmit which is related to the second FR.

4. The method of claim 2 , wherein the first FR is a frequency range between 410 MHz and 7125 MHz, and
wherein the second FR is a frequency range between 24.25 GHz and 52.6 GHz.

5. The method of claim 1 , wherein the set of the number of S-SSBs allowed to transmit within the S-SSB period is configured differently based on a type of a cyclic prefix (CP).

6. The method of claim 5 , wherein the CP is a normal CP or an extended CP.

7. The method of claim 1 , wherein the set of the number of S-SSBs allowed to transmit within the S-SSB period is configured differently based on speed of the first device.

8. The method of claim 1 , wherein the set of the number of S-SSBs allowed to transmit within the S-SSB period is configured differently based on a type of a service transmitted by the first device.

9. The method of claim 1 , wherein the set of the number of S-SSBs allowed to transmit within the S-SSB period is configured differently based on a priority of a carrier through which the one or more S-SSBs are transmitted.

10. The method of claim 1 , wherein the set of the number of S-SSBs allowed to transmit within the S-SSB period is configured differently based on a type of the first device.

11. The method of claim 1 , wherein the set of the number of S-SSBs allowed to transmit within the S-SSB period is configured differently based on a synchronization reference related to the first device.

12. The method of claim 1 , wherein the set of the number of S-SSBs allowed to transmit within the S-SSB period is configured differently based on a type of a carrier through which the one or more S-SSBs are transmitted.

13. The method of claim 12 , wherein the type of the carrier is a licensed carrier or an intelligent transport systems (ITS)-dedicated carrier.

14. A first device configured to perform wireless communication, the first device comprising:
one or more memories storing instructions;
one or more transceivers; and
one or more processors connected to the one or more memories and the one or more transceivers, wherein the one or more processors execute the instructions to:
receive, from a base station, information related to a number of sidelink synchronization signal blocks (S-SSBs) transmitted within a S-SSB period; and
transmit one or more S-SSBs including a sidelink primary synchronization signal (S-PSS), a sidelink secondary synchronization signal (S-SSS) and a physical sidelink broadcast channel (PSBCH), within the S-SSB period, based on the information related to the number of S-SSBs,
wherein the number of S-SSBs is selected from one or more elements included in a set of a number of S-SSBs allowed to transmit within the S-SSB period, and
wherein the set of the number of S-SSBs allowed to transmit within the S-SSB period is configured differently based on a sub-carrier spacing (SCS) and a frequency range (FR).

15. The first device of claim 14 wherein the FR includes a first FR and a second FR, and
wherein the first FR is a frequency range lower than the second FR.

16. The first device of claim 15 , wherein a maximum value of elements included in a set of a number of S-SSBs allowed to transmit which is related to the first FR is less than a maximum value of elements included in a set of a number of S-SSBs allowed to transmit which is related to the second FR.

17. The first device of claim 15 , wherein the first FR is a frequency range between 410 MHz and 7125 MHz, and
wherein the second FR is a frequency range between 24.25 GHz and 52.6 GHz.

18. The first device of claim 14 , wherein the set of the number of S-SSBs allowed to transmit within the S-SSB period is configured differently based on a type of a cyclic prefix (CP).

19. The first device of claim 18 , wherein the CP is a normal CP or an extended CP.

20. An apparatus configured to control a first user equipment (UE) performing wireless communication, the apparatus comprising:
one or more processors; and
one or more memories operably connected to the one or more processors and storing instructions, wherein the one or more processors execute the instructions to:
receive, from a base station, information related to a number of sidelink synchronization signal blocks (S-SSBs) transmitted within a S-SSB period; and
transmit one or more S-SSBs including a sidelink primary synchronization signal (S-PSS), a sidelink secondary synchronization signal (S-SSS) and a physical sidelink broadcast channel (PSBCH), within the S-SSB period, based on the information related to the number of S-SSBs,
wherein the number of S-SSBs is selected from one or more elements included in a set of a number of S-SSBs allowed to transmit within the S-SSB period, and
wherein the set of the number of S-SSBs allowed to transmit within the S-SSB period is configured differently based on a sub-carrier spacing (SCS) and a frequency range (FR).

Assignees

• Lg Electronics Inc
• Lg Electionics Inc

Inventors

• Hwang Daesung
• Lee Seungmin
• Seo Hanbyul

Classifications

• H04W48/10

  using broadcasted information · CPC title

• H04J11/0076

  Acquisition of secondary synchronisation channel, e.g. detection of cell-ID group · CPC title

• H04J11/0073

  Acquisition of primary synchronisation channel, e.g. detection of cell-ID within cell-ID group · CPC title

• H04W4/40

  for vehicles, e.g. vehicle-to-pedestrians [V2P] · CPC title

• H04W56/00 Primary

  Synchronisation arrangements · CPC title