# US 11,122,454 B2 · Measurement performing method and user equipment

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 11,122,454 B2
- Document ID: US11122454B2
- Status: Granted
- Kind: B2
- Application number: 16/484,013
- Filed: 2018-02-06
- Published: 2020-01-16
- Granted: 2021-09-14
- Earliest claimed: 2017-02-06
- Assignees: LG Electronics Inc.
- Applicants: LG Electronics Inc.
- Inventors: Eunsun Kim; Hyunsoo Ko; Kijun Kim; Sukhyon Yoon
- Web page: https://patentgrep.com/patent/US11122454B2

## CPC

- H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports}
- H04L 5/00: Arrangements affording multiple use of the transmission path
- H04W 16/14: Spectrum sharing arrangements {between different networks}
- H04W 24/02: Arrangements for optimising operational condition
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

User equipment can be configured to perform a channel state information reference signal (CSI-RS)-based radio resource management (RRM) measurement. The user equipment receives CSI-RS configuration information, and receives a CSI-RS of a cell on the basis of the CSI-RS configuration information so as to perform a CSI-RS-based RRM measurement. The CSI-RS configuration information includes an SS block index for indicating an SS block associated with the CSI-RS, and the user equipment receives the CSI-RS on the basis of the SS block index.

## Claims

### Claim 1

A method of performing measurement by a user equipment (UE) in a wireless communication system, the method comprising:
transmitting a channel state information reference signal (CSI-RS) configuration request, based on a synchronization signal (SS) block of a cell which is not a serving cell (non-serving cell) for the UE;
receiving a CSI-RS configuration for the cell, based on transmitting the CSI-RS configuration request;
receiving a CSI-RS of the cell based on the CSI-RS configuration, the CSI-RS configuration including a SS block index that represents an SS block quasi co-located with the CSI-RS among a plurality of SS blocks of the cell; and
performing radio resource management (RRM) measurement based on the CSI-RS and the SS block.

### Claim 2 (depends on 1)

The method of claim 1, further comprising:
acquiring synchronization information for the CSI-RS based on the SS block, and
wherein the CSI-RS is received according to the synchronization information.

### Claim 3 (depends on 1)

The method of claim 1, further comprising:
reporting a result of the RRM measurement.

### Claim 4 (depends on 1)

The method of claim 1,
wherein, based on the RRM measurement being an interference measurement, the UE measures the CSI-RS while matching a received beam of the UE to a serving CSI-RS of the UE or a serving SS block of the UE.

### Claim 5

A user equipment (UE) configured to perform measurement in a wireless communication system, the UE comprising,
a radio frequency (RF) transceiver,
a processor; and
a memory storing at least one program that causes the processor to perform operations comprising:
transmitting a channel state information reference signal (CSI-RS) configuration request, based on a synchronization signal (SS) block of a cell which is not a serving cell (non-serving cell) for the UE;
receiving a CSI-RS configuration for the cell, based on transmitting the CSI-RS configuration request;
receiving a CSI-RS of the cell based on the CSI-RS configuration, the CSI-RS configuration including a SS block index that represents an SS block quasi co-located with the CSI-RS among a plurality of SS blocks of the cell; and
performing radio resource management (RRM) measurement based on the CSI-RS.

### Claim 6 (depends on 5)

The UE of claim 5, wherein the operations further comprise:
acquiring synchronization information of the CSI-RS based on the SS block, and
wherein the UE receives the CSI-RS according to the synchronization information.

### Claim 7 (depends on 5)

The UE of claim 5, wherein the operations further comprise:
reporting a result of the RRM measurement.

### Claim 8 (depends on 5)

The UE of claim 5,
wherein, based on the RRM measurement being an interference measurement, the UE measures the CSI-RS while matching a received beam of the RF transceiver to a serving CSI-RS of the UE or a serving SS block of the UE.