# US 12,192,150 B2 · Method and device for indication of in-device coexistence interference

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- Number: US 12,192,150 B2
- Document ID: US12192150B2
- Status: Granted
- Kind: B2
- Application number: 17/620,664
- Filed: 2019-06-18
- Published: 2022-11-10
- Granted: 2025-01-07
- Earliest claimed: 2019-06-18
- Assignees: Beijing Xiaomi Mobile Software Co., Ltd.
- Applicants: Beijing Xiaomi Mobile Software Co., Ltd.
- Inventors: Xiaowei Jiang
- Web page: https://patentgrep.com/patent/US12192150B2

## CPC

- H04L 5/0073: {Allocation arrangements that take into account other cell interferences}
- H04J 11/0023: {Interference mitigation or co-ordination (direct sequence spread spectrum [DSSS] systems H04B1/7097; frequency hopping H04B1/713; allocation criteria for ingress interference avoidance H04L5/0062; frequency allocation criteria for requirements on out-of-channel emissions H04L5/0066; arrangements for removing intersymbol interference or baseband equalisers H04L25/03006; peak power aspects in multicarrier modulation H04L27/2614; power management H04W52/00; traffic scheduling H04W72/54, H04W72/541)}
- H04L 5/001: {the frequencies being arranged in component carriers}
- H04L 5/0094: {Indication of how sub-channels of the path are allocated}
- H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA
- H04W 72/541: using the level of interference
- H04W 88/06: adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04J: MULTIPLEX COMMUNICATION (transmission in general H04B; peculiar to transmission of digital information H04L5/00; systems for the simultaneous or sequential transmission of more than one television signal H04N7/08; in exchanges H04Q11/00; stereophonic systems H04S)
- 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 for indicating in-device coexistence interference is provided. The method includes that: a terminal determines that in-device coexistence interference exists or is to occur in the terminal; and the terminal sends a carrier frequency of a carrier that causes or suffers interference, and information of a sub-band in the carrier that causes or suffers interference, to a base station, where the carrier includes at least one sub-band.

## Claims

### Claim 1

A method for indicating in-device coexistence interference, comprising:
communicating, by a terminal, a combination of a plurality of carriers with a base station;
determining, by the terminal, that in-device coexistence interference exists or is to occur in the terminal; and
determining, by the terminal, interference information, wherein the interference information comprises a frequency point of a sub-band in a 5G network that causes or suffers interference, a bandwidth of the sub-band in the 5G network that causes or suffers interference, and combination information of sub-bands that cause or suffer interference in the plurality of carriers.

### Claim 2 (depends on 1)

The method according to claim 1, further comprising:
receiving second configuration information sent by the base station,
wherein the second configuration information is configured to indicate at least one of following parameters: a number of the sub-bands or the bandwidth of the sub-band.

### Claim 3 (depends on 1)

The method according to claim 1, wherein the interference information comprises:
identification information associated with the sub-band, and the sub-band is a bandwidth part.

### Claim 4 (depends on 1)

The method according to claim 1, further comprising:
sending information of an interference direction of the sub-band to the base station.

### Claim 5 (depends on 1)

The method according to claim 1, further comprising:
sending information of degree to which the sub-band causes or suffers interference, to the base station, and the information of degree comprises at least one of following parameters:
an identification of degree or a decibel value.

### Claim 6 (depends on 1)

The method according to claim 1, further comprising:
the interference information to the base station.

### Claim 7

A device for indicating in-device coexistence interference, comprising:
a processor; and
a memory for storing processor-executable instructions,
wherein the processor is configured to:
communicate a combination of a plurality of carriers with a base station;
determine that in-device coexistence interference exists or is to occur in a terminal; and
determine interference information, wherein the interference information comprises a frequency point of a sub-band in a 5G network that causes or suffers interference, a bandwidth of the sub-band in the 5G network that causes or suffers interference, and combination information of sub-bands that cause or suffer interference in the plurality of carriers.

### Claim 8 (depends on 7)

The device according to claim 7, wherein the processor is further configured to:
receive second configuration information sent by the base station,
wherein the second configuration information is configured to indicate at least one of following parameters: a number of the sub-bands, or the bandwidth of the sub-band.

### Claim 9 (depends on 7)

The device according to claim 7, wherein the interference information comprises:
identification information associated with the sub-band, and the sub-band is a bandwidth part.

### Claim 10 (depends on 7)

The device according to claim 7, wherein the processor is further configured to send information of an interference direction of the sub-band to the base station.

### Claim 11 (depends on 7)

The device according to claim 7, wherein the processor is further configured to send information of degree to which the sub-band causes or suffers interference, to the base station, and the information of degree comprises at least one of following parameters:
an identification of degree, or a decibel value.

### Claim 12 (depends on 7)

The device according to claim 7, wherein the processor is further configured to:
the interference information to the base station.
