# US 12,003,283 B2 · Method and apparatus for measuring and reporting cross-link interference in next-generation mobile communication system

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- Number: US 12,003,283 B2
- Document ID: US12003283B2
- Status: Granted
- Kind: B2
- Application number: 17/869,258
- Filed: 2022-07-20
- Published: 2022-11-17
- Granted: 2024-06-04
- Earliest claimed: 2019-07-04
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Seungri Jin; Soenghun Kim; Himke Van Der Velde
- Web page: https://patentgrep.com/patent/US12003283B2

## CPC

- H04B 17/24: with feedback of measurements to the transmitter
- H04B 17/345: Interference values ({signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]} H04B17/336)
- H04B 17/382: for resource allocation, admission control or handover
- 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 27/2602: {Signal structure}
- H04W 16/18: Network planning tools
- H04W 24/08: Testing, {supervising or monitoring} using real traffic
- H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports}
- H04W 72/541: using the level of interference
- H04B 17/327: Received signal code power [RSCP]
- H04L 27/261: {Details of reference signals}
- H04W 16/04: Traffic adaptive resource partitioning
- H04B: TRANSMISSION
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

A method and apparatus for measuring and reporting cross-link interference are provided. The method includes receiving, from a base station (BS), a measurement configuration for the CLI, performing measurement on the configured measurement object based on the measurement configuration for the CLI and transmitting, to the BS, based on a measurement result of at least one of a resource from a plurality of resources for measuring the CLI of the configured measurement object exceeding a threshold, a measurement report for all of the plurality of resources for measuring the CLI of the configured measurement object whose measurement result exceeds the threshold.

## Claims

### Claim 1

A method of measuring and reporting cross link interference (CLI) by a user equipment (UE) in a wireless communication system, the method comprising:
receiving, from a base station (BS), measurement configuration information including a measurement object for CLI measurement;
performing measurement on one or more resources indicated by the measurement object for CLI measurement; and
in case that a measurement result of at least one resource from the one or more resources indicated by the measurement object for CLI measurement fulfills a measurement report condition, transmitting, to the BS, a measurement report for the at least one resource of which the measurement result fulfills the measurement report condition, from among the one or more resources indicated by the measurement object for CLI measurement.

### Claim 2 (depends on 1)

The method of claim 1, wherein the measurement report condition is associated with the CLI measurement and included in the measurement configuration information.

### Claim 3 (depends on 1)

The method of claim 1, wherein the transmitting of the measurement report comprises:
in case that the measurement report condition is set to event-triggered and the measurement result of the at least one resource exceeds a threshold, transmitting the measurement report for the at least one resource of which the measurement result exceeds the threshold, from among the one or more resources indicated by the measurement object for CLI measurement.

### Claim 4 (depends on 3)

The method of claim 3, wherein the threshold is a value configured for CLI measurement and included in the measurement configuration information.

### Claim 5 (depends on 3)

The method of claim 3, wherein the transmitting of the measurement report further comprises:
in case that the measurement report condition is set to event-triggered and a first value associated with the measurement result of the at least one resource exceeds the threshold and a second value associated with another measurement result according to a measurement performed thereafter is below the threshold, transmitting, to the BS, the measurement report.

### Claim 6 (depends on 5)

The method of claim 5,
wherein the first value comprises a value obtained by subtracting a hysteresis parameter from the measurement result, and
wherein the second value comprises a value obtained by adding the hysteresis parameter to the another measurement result.

### Claim 7 (depends on 1)

The method of claim 1, wherein the one or more resources indicated by the measurement object for CLI measurement comprise at least one of a sounding reference signal (SRS) resource or a resource for measuring received signal strength indication (RSSI) of the CLI.

### Claim 8 (depends on 1)

The method of claim 1, wherein the measurement report comprises at least one of a sounding reference signal-reference signal received power (SRS-RSRP) or cross link interference-received signal strength indication (CLI-RSSI).

### Claim 9 (depends on 1)

The method of claim 1, wherein the transmitting of the measurement report comprises:
transmitting, to the BS, a measurement report of a serving cell of the UE.

### Claim 10

A user equipment (UE) measuring and reporting cross link interference (CLI) in a wireless communication system, the UE comprising:
a transceiver; and
at least one processor configured to:
receive, from a base station (BS), measurement configuration information including a measurement object for CLI measurement;
perform measurement on one or more resources indicated by the measurement object for CLI measurement; and
in case that a measurement result of at least one resource from the one or more resources indicated by the measurement object for CLI measurement fulfills a measurement report condition, control the transceiver to transmit, to the BS, a measurement report for the at least one resource of which the measurement result fulfills the measurement report condition, from among the one or more resources indicated by the measurement object for CLI measurement.

### Claim 11 (depends on 10)

The UE of claim 10, wherein the measurement report condition is associated with the CLI measurement and included in the measurement configuration information.

### Claim 12 (depends on 10)

The UE of claim 10, wherein the at least one processor is further configured to:
in case that the measurement report condition is set to event-triggered and the measurement result of the at least one resource exceeds a threshold, control the transceiver to transmit the measurement report for the at least one resource of which the measurement result exceeds the threshold, from among the one or more resources indicated by the measurement object for CLI measurement.

### Claim 13 (depends on 12)

The UE of claim 12, wherein the threshold is a value configured for CLI measurement and included in the measurement configuration information.

### Claim 14 (depends on 12)

The UE of claim 12, wherein the at least one processor is further configured to:
in case that the measurement report condition is set to event-triggered and a first value associated with the measurement result of the at least one resource exceeds the threshold and a second value associated with another measurement result according to a measurement performed thereafter is below the threshold, control the transceiver to transmit, to the BS, the measurement report.

### Claim 15 (depends on 14)

The UE of claim 14,
wherein the first value comprises a value obtained by subtracting a hysteresis parameter from the measurement result, and
wherein the second value comprises a value obtained by adding the hysteresis parameter to the another measurement result.

### Claim 16 (depends on 10)

The UE of claim 10, wherein the one or more resources indicated by the measurement object for CLI measurement comprise at least one of a sounding reference signal (SRS) resource or a resource for measuring received signal strength indication (RSSI) of the CLI.

### Claim 17 (depends on 10)

The UE of claim 10, wherein the measurement report comprises at least one of a sounding reference signal-reference signal received power (SRS-RSRP) or cross link interference-received signal strength indication (CLI-RSSI).

### Claim 18 (depends on 10)

The UE of claim 10, wherein the at least one processor is further configured to:
control the transceiver to transmit, to the BS, a measurement report of a serving cell of the UE.
