Method and apparatus for receiving a synchronization signal

Patent metadata

Field	Value
Publication number	US-11950260-B2
Application number	US-202217953824-A
Country	US
Kind code	B2
Filing date	Sep 27, 2022
Priority date	May 5, 2017
Publication date	Apr 2, 2024
Grant date	Apr 2, 2024

Abstract

The present invention discloses a method for a terminal to receive a synchronization signal in a wireless communication system. Particularly, the method includes the steps of receiving a synchronization block including a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcasting channel (PBCH) and receiving a DMRS (demodulation reference signal) via resource region in which the PBCH is received. In this case, an index of the synchronization block can be determined in consideration of a sequence of the DMRS.

First claim

What is claimed is:

1. A method of receiving a synchronization signal block (SSB) by a user equipment (UE) in a wireless communication system, the method comprising:
receiving the SSB including a primary synchronization signal (PSS), secondary synchronization signal (SSS), and a physical broadcasting channel (PBCH); and
receiving a demodulation reference signal (DMRS) for the PBCH,
wherein a scrambling sequence for the PBCH and a sequence of the DMRS are based on an index of the SSB.

2. The method of claim 1 ,
wherein the sequence of the DMRS is initialized based on a cell identifier (ID).

3. A user equipment (UE) for receiving Synchronization Signal Block (SSB) in a wireless communication, the UE comprising:
at least one transceiver;
at least one processor; and
at least one computer memory operably connectable to the at least one processor and storing instructions that, when executed, cause the at least one processor to perform operations comprising:
receiving the SSB including a primary synchronization signal (PSS), secondary synchronization signal (SSS), and a physical broadcasting channel (PBCH); and
receiving a demodulation reference signal (DMRS) for the PBCH,
wherein a scrambling sequence for the PBCH and a sequence of the DMRS are based on an index of the SSB.

4. The UE of claim 3 ,
wherein the sequence of the DMRS is initialized based on a cell identifier (ID).

5. A method of transmitting a synchronization signal block (SSB) by a base station (BS) in a wireless communication system, the method comprising:
transmitting, to a user equipment (UE), the SSB including a primary synchronization signal (PSS), secondary synchronization signal (SSS), and a physical broadcasting channel (PBCH); and
transmitting, to the UE, a demodulation reference signal (DMRS) for the PBCH,
wherein a scrambling sequence for the PBCH and a sequence of the DMRS are based on an index of the SSB.

6. The method of claim 5 ,
wherein the sequence of the DMRS is initialized based on a cell identifier (ID).

7. A base station (BS) for transmitting Synchronization Signal Block (SSB) in a wireless communication, the BS comprising:
at least one transceiver;
at least one processor; and
at least one computer memory operably connectable to the at least one processor and storing instructions that, when executed, cause the at least one processor to perform operations comprising:
transmitting, to a user equipment (UE), the SSB including a primary synchronization signal (PSS), secondary synchronization signal (SSS), and a physical broadcasting channel (PBCH); and
transmitting, to the UE, a demodulation reference signal (DMRS) for the PBCH,
wherein a scrambling sequence for the PBCH and a sequence of the DMRS are based on an index of the SSB.

Assignees

• Lg Electronics Inc

Inventors

• Ko Hyunsoo
• Kim Kijun
• Yoon Sukhyon
• Kim Youngsub
• Kim Eunsun

Classifications

• H04W72/30 Primary

  Resource management for broadcast services · CPC title

• H04J11/0079

  Acquisition of downlink reference signals, e.g. detection of cell-ID · CPC title

• H04L5/0051

  of dedicated pilots, i.e. pilots destined for a single user or terminal · CPC title

• H04L5/10

  with dynamo-electric generation of carriers; with mechanical filters or demodulators · CPC title

• H04W56/001

  Synchronization between nodes · CPC title