IP Library › Granted Patent US 12,238,657

Granted Patent B2

US 12,238,657 · App. 17/636,269 · Granted Feb 25, 2025

Method and device for transmitting S-SSB in NR V2

Inventors: Woosuk Ko (Seoul, KR); Seungmin Lee (Seoul, KR)

Assignee: LG ELECTRONICS INC.

H04W56/001 H04W52/52 H04W92/18

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Quick Facts

Patent No.: US 12,238,657
App. No.: 17/636,269
Granted: Feb 25, 2025
Kind: B2

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Abstract

An operating method of a first device in a wireless communication system is presented. The method comprises the steps of: generating a sidelink synchronization signal block (S-SSB), wherein symbols related to the S-SSB include three or more contiguous symbols related to a sidelink primary synchronization signal (S-PSS), three or more contiguous symbols related to a sidelink secondary synchronization signal (S-SSS), and 11 or more PSBCH symbols related to a PSBCH, the S-PSS is mapped to symbols after a first symbol from among the symbols related to the S-SSB, the S-SSS is mapped to symbols after symbols related to the S-PSS from among the symbols related to the S-SSB, and the PSBCH is mapped to the first symbol from among the symbols related to the S-SSB and to symbols after symbols related to the S-SSS; and transmitting the S-SSB to a second device.

Claims (54)

1. A method for performing, by a first apparatus, wireless communication, the method comprising:

generating an aggregated sidelink synchronization signal block (S-SSB),

wherein symbols related to the S-SSB include three or more contiguous symbols related to a sidelink primary synchronization signal (S-PSS), three or more contiguous symbols related to a sidelink secondary synchronization signal (S-SSS), and eleven or more symbols related to physical broadcast channel (PSBCH),

wherein the S-PSS is mapped to symbols after the first symbol among the symbols related to the S-SSB,

wherein the S-SSS is mapped to symbols after the symbols related to the S-PSS among the symbols related to the S-SSB, and

wherein the PSBCH is mapped to the first symbol among the symbols related to the S-SSB and symbols after the symbols related to the S-SSS; and

transmitting the S-SSB to a second apparatus,

wherein symbols after the symbols related to the S-SSS among the symbols related to the PSBCH are contiguous, and

wherein a codeword mapped to the symbols after the symbols related to the S-SSS among the symbols related to the PSBCH is coded at a lower code rate than a non-aggregated S-SSB.

2. The method of claim 1 , wherein the S-SSB is transmitted with a subcarrier spacing (SCS) of 30 kHz or higher.

3. The method of claim 1 , wherein a length of a sequence related to the S-PSS is longer than 127.

4. The method of claim 3 ,

wherein the symbols related to the S-SSB include an S-PSS symbol group,

wherein the S-PSS symbol group includes the symbols related to the S-PSS, and

wherein the sequence related to the S-PSS is mapped to the S-PSS symbol group.

5. The method of claim 1 , wherein a length of a sequence related to the S-SSS is longer than 127.

6. The method of claim 5 ,

wherein the symbols related to the S-SSB include an S-SSS symbol group,

wherein the S-SSS symbol group includes the symbols related to the S-SSS, and

wherein the sequence related to the S-SSS is mapped to the S-SSS symbol group.

7. The method of claim 1 ,

wherein the symbols related to the S-SSB includes 14*N symbols, and

wherein the N is an integer greater than or equal to 2.

8. The method of claim 1 ,

wherein the symbols related to the S-SSB include a PSBCH symbol group,

wherein the PSBCH symbol group includes the symbols after the symbols related to the S-SSS among the symbols related to the PSBCH, and

wherein the codeword is mapped to the PSBCH symbol group.

9. The method of claim 1 , wherein automatic gain control (AGC) is performed in a period related to the first symbol among the symbols related to the S-SSB.

10. The method of claim 1 , wherein switching is performed in a period related to the last symbol among the symbols related to the S-SSB.

11. The method of claim 1 , wherein the symbols related to the S-SSB include one symbol of the symbols related to the PSBCH between the symbols related to the S-PSS and the symbols related to the S-SSS.

12. The method of claim 11 , wherein a period related to the one symbol of the symbols related to the PSBCH, included between the symbols related to the S-PSS and the symbols related to the S-SSS, includes a transient period.

13. A first apparatus for performing wireless communication, the first apparatus 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:

generate an aggregated sidelink synchronization signal block (S-SSB),

wherein the S-PSS is mapped to symbols after the first symbol among the symbols related to the S-SSB,

wherein the S-SSS is mapped to symbols after the symbols related to the S-PSS among the symbols related to the S-SSB, and

wherein the PSBCH is mapped to the first symbol among the symbols related to the S-SSB and symbols after the symbols related to the S-SSS; and

transmit the S-SSB to a second apparatus,

wherein symbols after the symbols related to the S-SSS among the symbols related to the PSBCH are contiguous, and

wherein a codeword mapped to the symbols after the symbols related to the S-SSS among the symbols related to the PSBCH is coded at a lower code rate than a non-aggregated S-SSB.

14. An apparatus configured to control a first user equipment (UE), the apparatus comprising:

one or more processors; and

one or more memories operably connectable to the one or more processors and storing instructions, wherein the one or more processors execute the instructions to:

generate an aggregated sidelink synchronization signal block (S-SSB),

wherein the S-PSS is mapped to symbols after the first symbol among the symbols related to the S-SSB,

wherein the S-SSS is mapped to symbols after the symbols related to the S-PSS among the symbols related to the S-SSB, and

wherein the PSBCH is mapped to the first symbol among the symbols related to the S-SSB and symbols after the symbols related to the S-SSS; and

transmit the S-SSB to a second UE,

wherein symbols after the symbols related to the S-SSS among the symbols related to the PSBCH are contiguous, and

wherein a codeword mapped to the symbols after the symbols related to the S-SSS among the symbols related to the PSBCH is coded at a lower code rate than a non-aggregated S-SSB.

Assignments (1)

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 17, 2022

From: KO, WOOSUK; LEE, SEUNGMIN

To: LG ELECTRONICS INC.

Reel/Frame 059039/0444 →

Priority Claims (1)

KR 10-2019-0100937 · Aug 19, 2019 · national

Continuity (2)

Provisional Application 62898541 · Sep 10, 2019

Related Publication 20220295426A1 · Sep 15, 2022

References Cited (9)

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