# US 12,003,312 B2 · Phase noise removal in a network of radio frequency (RF) repeaters

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- Number: US 12,003,312 B2
- Document ID: US12003312B2
- Status: Granted
- Kind: B2
- Application number: 18/161,928
- Filed: 2023-01-31
- Published: 2023-06-01
- Granted: 2024-06-04
- Earliest claimed: 2020-06-24
- Assignees: AR & NS Investment, LLC
- Applicants: AR & NS Investment, LLC
- Inventors: Alireza Tarighat Mehrabani
- Web page: https://patentgrep.com/patent/US12003312B2

## CPC

- H04B 7/15521: {combining by calculations packets received from different stations before transmitting the combined packets as part of network coding (network coding aspects for detection or prevention of errors in the information received H04L1/0076; network traffic management with optimizing of information sizing, e.g. header compression, by using assembly and disassembly of packets H04W28/065)}
- H04B 7/15528: {Control of operation parameters of a relay station to exploit the physical medium}
- H04B 7/15535: {Control of relay amplifier gain (amplifier gain control in general H03G3/00; gain control reducing self - or loop interference H04B7/15578)}
- H04B: TRANSMISSION

## Abstract

A wireless communication system includes a first communication device and a second communication device. The second communication device captures over-the-air a mmWave RF signal of a specified frequency having a defined pilot tone transmitted by the first communication device. The second communication device extracts at least one RF signal from a plurality of RF signals corresponding to different communication protocols from the captured mmWave RF signal, estimates phase-noise in the at least one extracted RF signal, and down-converts the at least one extracted RF signal to a source frequency. The second communication device further reduces the phase noise in the at least one extracted RF signal concurrently at the down-convert and utilizes the at least one extracted RF signal with reduced phase noise for further distribution to one or more end-user devices.

## Claims

### Claim 1

A wireless communication system, comprising:
a first communication device and a second communication device, wherein the second communication device comprises a first digital signal processor that is configured to:
capture over-the-air a mmWave RF signal of a specified frequency having a defined pilot tone, wherein the mmWave RF signal of the specified frequency is transmitted by the first communication device;
extract at least one RF signal from a plurality of RF signals corresponding to different communication protocols from the captured mmWave RF signal of the specified frequency;
estimate phase-noise in the at least one extracted RF signal from the plurality of RF signals,
wherein a phase noise in the plurality of RF signals is estimated based on an amount of deviation in one or more signal characteristics of the defined pilot tone present in the captured mmWave RF signal;
down-convert the at least one extracted RF signal to a source frequency that is same as the frequency of a corresponding RF signal of a plurality of RF signals, wherein the plurality of RF signals corresponding to different communication protocols are obtained, via the first communication device, from a plurality of communication systems;
reduce the phase noise in at least the one extracted RF signal concurrently at the down-convert based on the phase noise estimated in the at least one extracted RF signal; and
utilize the at least one extracted RF signal with reduced phase noise for further distribution to one or more end-user devices.

### Claim 2 (depends on 1)

The wireless communication system according to claim 1, wherein the first digital signal processor is further configured to provide access to a first type of communication network to the plurality of communication systems that are communicatively coupled to the first communication device via a plurality of different type of wireless networks.

### Claim 3 (depends on 2)

The wireless communication system according to claim 2, wherein the plurality of different type of wireless networks correspond to a Wireless-Fidelity (Wi-Fi) network, a Bluetooth network, a Bluetooth low energy (BLE) network, a Zigbee network, a cellular network, an infrared communication network, a radio frequency for consumer electronics (RF4CE) network, a wireless sensor network, or an Internet-of-Things network.

### Claim 4 (depends on 2)

The wireless communication system according to claim 2, wherein each of the plurality of RF signals communicated over a corresponding type of wireless network of the plurality of different type of wireless networks has a defined communication range, wherein a coverage of the plurality of RF signals corresponding to the different communication protocols is extended beyond the defined communication range based on the transmit of the mmWave RF signal of the specified frequency that includes the plurality of RF signals.

### Claim 5 (depends on 1)

The wireless communication system according to claim 1, wherein the different communication protocols correspond to a Wireless-Fidelity (Wi-Fi) protocol, a Bluetooth Protocol, a Bluetooth low energy (BLE) protocol, a Zigbee protocol, a cellular communication protocol, an infrared communication protocol, a radio frequency for consumer electronics (RF4CE) protocol, a wireless sensor network protocol, or different variations of wireless wide area network (WWAN), wireless local area network (WLAN), or wireless personal area network (WPAN) protocols.

### Claim 6 (depends on 1)

The wireless communication system according to claim 1, wherein the first communication device comprises a second digital signal processor, wherein the second digital signal processor maps and aligns the plurality of RF signals corresponding to the different communication protocols in the mmWave RF signal in accordance to a number of source antennas from which the plurality of RF signals are obtained.

### Claim 7 (depends on 6)

The wireless communication system according to claim 6, wherein the second digital signal processor provides the mmWave RF signal of the specified frequency to a plurality of second communication devices in a chain transmission or a parallel transmission, wherein each of the second communication device of the plurality of second communication devices is configured to extract, from the mmWave RF signal, one or more of the multiplexed plurality of RF signals.

### Claim 8 (depends on 6)

The wireless communication system according to claim 6, wherein the second communication device is further configured to extract, from the transmitted mmWave RF signal, a wireless wide area network signal, a wireless local area network signal, a wireless personal area network signal, or a combination thereof that corresponds to the plurality of RF signals.

### Claim 9 (depends on 6)

The wireless communication system according to claim 6, wherein the second digital signal processor of the first communication device communicates a first content item to a first communication system of the plurality of communication systems via a first wireless network associated with a first protocol, and a second content item to a second communication system of the plurality of communication systems via a second wireless network associated with a second protocol within a first physical area at a first location.

### Claim 10 (depends on 9)

The wireless communication system according to claim 9, wherein the second communication device is further configured to communicate the first content item to the first communication system via a third wireless network associated with the first protocol, and the second content item to the second communication system via a fourth wireless network associated with the second protocol within a second physical area at a second location when the first communication system and the second communication system are moved to the second physical area at the second location, wherein two different RF signals of the plurality of RF signals that carries the first content item and the second content item are retrieved at the second communication device based on the mmWave RF signal of the specified frequency received from the first communication device.

### Claim 11 (depends on 1)

The wireless communication system according to claim 1, wherein the first communication device and the second communication device is one of: a fifth generation (5G) modem, a 5G wireless access point, a multiprotocol wireless range extender device, an evolved-universal terrestrial radio access-new radio (NR) dual connectivity (EN-DC) device, a NR-enabled repeater device, a NR-enabled repeater device, a wireless local area network-enabled device, a wireless personal area network-enabled device, a mmWave-enabled device, or a 60 gigahertz (GHz) capable device.

### Claim 12 (depends on 1)

The wireless communication system according to claim 1, wherein the specified frequency of the mmWave RF signal is in a range of 10 gigahertz (GHz) to 300 GHz.

### Claim 13 (depends on 1)

The wireless communication system according to claim 1, wherein the specified frequency of the mmWave RF signal is in a range of 55 gigahertz (GHz) to 65 GHz.

### Claim 14 (depends on 1)

The wireless communication system according to claim 1, wherein the specified frequency of the mmWave RF signal is 60 gigahertz (GHz).

### Claim 15

A wireless communication method, comprising:
capturing, by a second communication device, over-the-air a mmWave RF signal of a specified frequency having a defined pilot tone, wherein the mmWave RF signal of the specified frequency is transmitted by a first communication device;
extracting, by the second communication device, at least one RF signal from a plurality of RF signals corresponding to different communication protocols from the mmWave RF signal of the specified frequency;
estimating phase-noise in the at least one extracted RF signal from the plurality of RF signals,
wherein a phase noise in the plurality of RF signals is estimated based on an amount of deviation in one or more signal characteristics of the defined pilot tone present in the captured mmWave RF signal;
down-converting, by the second communication device, the at least one extracted RF signal to a source frequency that is same as the frequency of a corresponding RF signal of a plurality of RF signals, wherein the plurality of RF signals corresponding to different communication protocols are obtained, via the first communication device, from a plurality of communication systems;
reducing, by the second communication device, the phase noise in at least the one extracted RF signal concurrently at the down-convert based on the phase noise estimated in the at least one extracted RF signal; and
utilizing, by the second communication device, the at least one extracted RF signal with reduced phase noise for further distribution to one or more end-user devices or consumption at the second communication device.

### Claim 16 (depends on 15)

The wireless communication method according to claim 15, further comprising providing access, by the first communication device, to a first type of communication network to the plurality of communication systems that are communicatively coupled to the first communication device via a plurality of different type of wireless networks.

### Claim 17 (depends on 15)

The wireless communication method according to claim 15, further comprising mapping and aligning, by the first communication device, the plurality of RF signals corresponding to the different communication protocols in the mmWave RF signal in accordance with a number of source antennas from which the plurality of RF signals are obtained.

### Claim 18 (depends on 15)

The wireless communication method according to claim 15, further comprising communicating, by the first communication device, a first content item to a first communication system of the plurality of communication systems via a first wireless network associated with a first protocol, and a second content item to a second communication system of the plurality of communication systems via a second wireless network associated with a second protocol within a first physical area at a first location.

### Claim 19 (depends on 18)

The wireless communication method according to claim 18, further comprising communicating, by the second communication device, the first content item to the first communication system via a third wireless network associated with the first protocol, and the second content item to the second communication system via a fourth wireless network associated with the second protocol within a second physical area at a second location when the first communication system and the second communication system are moved to the second physical area at the second location, wherein two different RF signals of the plurality of RF signals that carries the first content item and the second content item are retrieved at the second communication device based on the mmWave RF signal of the specified frequency received from the first communication device.

### Claim 20

A non-transitory computer-readable medium having stored thereon, computer implemented instructions that when executed by a computer in a communication apparatus causes the communication apparatus to execute operations, the operations comprising:
capturing, by a second communication device, over-the-air a mmWave RF signal of a specified frequency having a defined pilot tone, wherein the mmWave RF signal of the specified frequency is transmitted by a first communication device;
extracting, by the second communication device, at least one RF signal from a plurality of RF signals corresponding to different communication protocols from the mmWave RF signal of the specified frequency;
estimating phase-noise in the at least one extracted RF signal from the plurality of RF signals,
wherein a phase noise in the plurality of RF signals is estimated based on an amount of deviation in one or more signal characteristics of the defined pilot tone present in the captured mmWave RF signal;
down-converting, by the second communication device, the at least one extracted RF signal to a source frequency that is same as the frequency of a corresponding RF signal of a plurality of RF signals, wherein the plurality of RF signals corresponding to different communication protocols are obtained, via the first communication device, from a plurality of communication systems;
reducing, by the second communication device, the phase noise in the at least one extracted RF signal concurrently at the down-convert based on the phase noise estimated in the at least one extracted RF signal; and
utilizing, by the second communication device, the at least one extracted RF signal with reduced phase noise for further distribution to one or more end-user devices or consumption at the second communication device.
