# US 11,310,015 B2 · Method for transmitting and receiving reference signal and device therefor

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- Number: US 11,310,015 B2
- Document ID: US11310015B2
- Status: Granted
- Kind: B2
- Application number: 17/047,630
- Filed: 2019-04-16
- Published: 2021-05-27
- Granted: 2022-04-19
- Earliest claimed: 2018-04-17
- Assignees: LG Electronics Inc.
- Applicants: LG Electronics Inc.
- Inventors: Hyunsu Cha; Jonghyun Park
- Web page: https://patentgrep.com/patent/US11310015B2

## CPC

- H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)}
- H04L 5/005: {of common pilots, i.e. pilots destined for multiple users or terminals}
- H04B 7/088: {using beam selection}
- H04L 5/0023: {Time-frequency-space}
- H04L 27/2602: {Signal structure}
- H04L 27/26025: {Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking (allocating sub-channels of the transmission path H04L5/003)}
- H04L 27/261: {Details of reference signals}
- H04W 16/28: using beam steering
- H04W 56/00: Synchronisation arrangements
- H04W 72/30: Resource management for broadcast services
- H04W 72/56: based on priority criteria
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04B: TRANSMISSION
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

Disclosed is a method for a terminal to receive a reference signal in a wireless communication system. In particular, the method comprises: receiving information informing of a mode associated with a repetitive use of a beam for a channel state information-reference signal (CSI-RS); and receiving a synchronization signal/physical broadcast channel (SS/PBCH) block and the CSI-RS multiplexed on the basis of the mode, wherein the reception priority for the SS/PBCH block is higher than the reception priority for the CSI-RS.

## Claims

### Claim 1

A method of receiving a reference signal (RS) by a user equipment (UE) in a wireless communication system, the method comprising:
receiving information informing a mode related to repetition of a beam for a channel state information-reference signal (CSI-RS); and
receiving the CSI-RS and a synchronization signal/physical broadcast channel (SS/PBCH) block which are multiplexed based on the mode,
wherein, based on a subcarrier spacing for the SS/PBCH block being an integer multiple of a subcarrier spacing for the CSI-RS, the reception priority of the SS/PBCH block is identical to the reception priority of the CSI-RS.

### Claim 2 (depends on 1)

The method according to claim 1, wherein the UE performs reception beam sweeping for a plurality of symbols including the SS/PBCH block.

### Claim 3 (depends on 1)

The method according to claim 1, wherein the mode is for informing that a base station (BS) does not use the same beam repeatedly to transmit the CSI-RS.

### Claim 4 (depends on 1)

The method according to claim 1, wherein the UE includes one antenna panel.

### Claim 5 (depends on 1)

The method according to claim 1, wherein channel state measurement is not based on the CSI-RS.

### Claim 6 (depends on 1)

The method according to claim 1, wherein the SS/PBCH block and the CSI-RS are multiplexed in frequency division multiplexing (FDM).

### Claim 7 (depends on 1)

The method according to claim 1, wherein, based on a signal for a reception priority configuration being received from a BS, the reception priorities of the SS/PBCH block and the CSI-RS are determined based on the received signal.

### Claim 8

A user equipment (UE) for receiving a reference signal (RS) in a wireless communication system, the UE comprising:
a transceiver; and
at least one processor coupled with the transceiver,
wherein the at least one processor is configured to:
control the transceiver to receive information informing a mode related to repetition of a beam for a channel state information-reference signal (CSI-RS), and
control the transceiver to receive the CSI-RS and a synchronization signal/physical broadcast channel (SS/PBCH) block which are multiplexed based on the mode, and
wherein, based on a subcarrier spacing for the SS/PBCH block being an integer multiple of a subcarrier spacing for the CSI-RS, the reception priority of the SS/PBCH block is identical to the reception priority of the CSI-RS.

### Claim 9

An apparatus for receiving a reference signal (RS) in a wireless communication system, the apparatus comprising:
a memory; and
at least one processor coupled with the memory,
wherein the at least one processor is configured to:
receive information informing a mode related to repetition of a beam for a channel state information-reference signal (CSI-RS), and
receive the CSI-RS and a synchronization signal/physical broadcast channel (SS/PBCH) block which are multiplexed based on the mode, and
wherein, based on a subcarrier spacing for the SS/PBCH block being an integer multiple of a subcarrier spacing for the CSI-RS, the reception priority of the SS/PBCH block is identical to the reception priority of the CSI-RS.

### Claim 10

A method of transmitting a reference signal (RS) by a base station (BS) in a wireless communication system, the method comprising:
transmitting information informing a mode related to repetition of a beam for a channel state information-reference signal (CSI-RS); and
transmitting the CSI-RS and a synchronization signal/physical broadcast channel (SS/PBCH) block which are multiplexed based on the mode,
wherein, based on a subcarrier spacing for the SS/PBCH block being an integer multiple of a subcarrier spacing for the CSI-RS, the reception priority of the SS/PBCH block is identical to the reception priority of the CSI-RS.

### Claim 11

A base station (BS) for transmitting a reference signal (RS) in a wireless communication system, the BS comprising:
a transceiver; and
at least one processor coupled to the transceiver,
wherein the at least one processor is configured to:
control the transceiver to transmit information informing a mode related to repetition of a beam for a channel state information-reference signal (CSI-RS), and
control the transceiver to transmit the CSI-RS and a synchronization signal/physical broadcast channel (SS/PBCH) block which are multiplexed based on the mode, and
wherein, based on a subcarrier spacing for the SS/PBCH block being an integer multiple of a subcarrier spacing for the CSI-RS, the reception priority of the SS/PBCH block is identical to the reception priority of the CSI-RS.
