# US 12,114,298 B2 · IEEE 802.11 communication utilizing carrier specific interference mitigation

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- Number: US 12,114,298 B2
- Document ID: US12114298B2
- Status: Granted
- Kind: B2
- Application number: 17/566,986
- Filed: 2021-12-31
- Published: 2022-06-23
- Granted: 2024-10-08
- Earliest claimed: 2013-01-07
- Assignees: Netgear, Inc.
- Applicants: NETGEAR, Inc.
- Inventors: Michael Clegg
- Web page: https://patentgrep.com/patent/US12114298B2

## CPC

- H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA
- H04B 17/345: Interference values ({signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]} H04B17/336)
- 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 5/0055: {Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861)}
- H04L 5/0073: {Allocation arrangements that take into account other cell interferences}
- H04W 16/32: Hierarchical cell structures
- H04W 24/08: Testing, {supervising or monitoring} using real traffic
- H04W 40/22: using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
- H04W 72/541: using the level of interference
- H04W 74/02: Hybrid access
- H04W 76/28: Discontinuous transmission [DTX]; Discontinuous reception [DRX]
- H04W 84/12: WLAN [Wireless Local Area Networks]
- H04W 88/12: Access point controller devices
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04B: TRANSMISSION
- 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)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

Wireless communication under IEEE 802.11 standards utilizing carrier specific interference mitigation where an AP or UE employs an ultra-wideband tuner to evaluate available spectrum between several communication bands. Rather than being constrained to communicate in a single communication band, the AP and UEs may utilize more than one communication band to communicate with one another. In doing so, the AP and UE search across several bands and measure interference on a carrier-by-carrier basis across those bands. Either of the AP and UE may select a cluster of carriers for communication, where the cluster of carriers may comprise 1) contiguous carriers in a single sub-channel, 2) contiguous carriers spanning across more than one sub-channel, 3) discontinuous carriers in a single sub-channel, or 4) discontinuous carriers spanning across more than one sub-channel. The mapping between a cluster and its carriers can be fixed or reconfigurable.

## Claims

### Claim 1

A method for wireless communication in a multi-band, multi-carrier wireless network, the method comprising:
receiving, by an Access Point (AP), an indication of at least one condition for one or more of a plurality of Institute of Electrical and Electronics Engineers (IEEE) 802.11 communication bands, where the one or more of the plurality of IEEE 802.11 communication bands comprise one or more carriers;
based on the received indication, mitigating interference on a carrier-by-carrier basis for at least one of the one or more carriers in the one or more of the plurality of IEEE 802.11 communication bands; and
transmitting, by the AP, wireless data on the one or more carriers in the one or more of the plurality of IEEE 802.11 communication bands.

### Claim 2 (depends on 1)

The method of claim 1 further comprising:
measuring interference levels in the one or more carriers;
based on the measuring, prioritizing the one or more carriers for communication; and
transmitting an indication of the prioritized one or more carriers to at least one of an eNodeB, a User Equipment (UE) or another AP.

### Claim 3 (depends on 2)

The method of claim 2 further comprising:
in response to the transmitting, receiving an acknowledgement of the prioritized one or more carriers from the eNodeB, the User Equipment (UE), or the another AP.

### Claim 4 (depends on 1)

The method of claim 1 further comprising:
prioritizing the one or more carriers for communication;
performing the mitigating interference by identifying interference components in the prioritized one or more carriers; and
combining the interference components in a way that causes the interference components to cancel one another.

### Claim 5

An apparatus configured for wireless communication in a multi-band, multi-carrier wireless network, the apparatus comprising:
a non-transitory memory; and
one or more processors coupled to the non-transitory memory, where the one or more processors are configured to:
receive, by an Access Point (AP), an indication of at least one condition for one or more of a plurality of Institute of Electrical and Electronics Engineers (IEEE) 802.11 communication bands, where the one or more of the plurality of IEEE 802.11 communication bands comprise one or more carriers;
based on the received indication, mitigate interference on a carrier-by-carrier basis for at least one of the one or more carriers in the one or more of the plurality of IEEE 802.11 communication bands; and
transmit, by the AP, wireless data on the one or more carriers in the one or more of the plurality of IEEE 802.11 communication bands.

### Claim 6 (depends on 5)

The apparatus of claim 5 where the one or more processors are further configured to:
measure interference levels in the one or more carriers;
based on the measuring, prioritize the one or more carriers for communication; and
transmit an indication of the prioritized one or more carriers to at least one of an eNodeB, a User Equipment (UE), or another AP.

### Claim 7 (depends on 6)

The apparatus of claim 6 where the one or more processors are further configured to:
in response to the transmitting, receive an acknowledgement of the prioritized one or more carriers from the eNodeB, the User Equipment (UE), or the another AP.

### Claim 8 (depends on 5)

The apparatus of claim 5 where the one or more processors are further configured to:
prioritizing the one or more carriers for communication;
perform the mitigating interference by identifying interference components in the prioritized one or more carriers; and
combine the interference components in a way that causes the interference components to cancel one another.

### Claim 9

A method for wireless communication in a multi-band, multi-carrier wireless network, the method comprising:
receiving, by an Access Point (AP), an indication of at least one condition for one or more of a plurality of Institute of Electrical and Electronics Engineers (IEEE) 802.11 communication bands, where the one or more of the plurality of IEEE 802.11 communication bands comprise one or more carriers;
based on the received indication, identifying first carriers in the one or more of the plurality of IEEE 802.11 communication bands; and
mitigating interference, by the AP, on a carrier-by-carrier basis for one or more of the identified first carriers in the one or more of the plurality of IEEE 802.11 communication bands.

### Claim 10 (depends on 9)

The method of claim 9 further comprising:
measuring interference levels in the one or more carriers;
based on the measuring, prioritizing the one or more carriers for communication; and
transmitting an indication of the prioritized one or more carriers to at least one of an eNodeB, a User Equipment (UE), or another AP.

### Claim 11 (depends on 10)

The method of claim 10 further comprising:
in response to the transmitting, receiving an acknowledgement of the prioritized one or more carriers from the eNodeB, the User Equipment (UE), or the another AP.

### Claim 12 (depends on 9)

The method of claim 9 further comprising:
prioritizing the one or more carriers for communication;
performing the mitigating interference by identifying interference components in the prioritized one or more carriers; and
combining the interference components in a way that causes the interference components to cancel one another.

### Claim 13

An apparatus configured for wireless communication in a multi-band, multi-carrier wireless network, the apparatus comprising:
a non-transitory memory; and one or more processors coupled to the non-transitory memory, where the one or more processors are configured to:
receive, by an Access Point (AP), an indication of at least one condition for one or more of a plurality of Institute of Electrical and Electronics Engineers (IEEE) 802.11 communication bands, where the one or more of the plurality of IEEE 802.11 communication bands comprise one or more carriers;
based on the received indication, identify first carriers in the one or more of the plurality of IEEE 802.11 communication bands; and
mitigate interference, by the AP, on a carrier-by-carrier basis for one or more of the identified first carriers in the one or more of the plurality of IEEE 802.11 communication bands.

### Claim 14 (depends on 13)

The apparatus of claim 13 where the one or more processors are further configured to:
measure interference levels in the one or more carriers;
based on the measuring, prioritize the one or more carriers for communication; and
transmit an indication of the prioritized one or more carriers to at least one of an eNodeB, a User Equipment (UE), or another AP.

### Claim 15 (depends on 14)

The apparatus of claim 14 where the one or more processors are further configured to:
in response to the transmitting, receive an acknowledgement of the prioritized one or more carriers from the eNodeB, the User Equipment (UE), or the another AP.

### Claim 16 (depends on 13)

The apparatus of claim 13 where the one or more processors are further configured to:
prioritizing the one or more carriers for communication;
perform the mitigating interference by identifying interference components in the prioritized one or more carriers; and
combine the interference components in a way that causes the interference components to cancel one another.
