US Pat. No. 10,143,037

MILLIMETER WAVE WIRELESS SYSTEMS USING LICENSED AND UNLICENSED FREQUENCY SPECTRUM

Phazr, Inc., Allen, TX (...

1. A radio base station, comprising: a transmitter configured to transmit in the downlink direction a first millimeter wave band signal in a licensed frequency spectrum at a high transmit equivalent isotropically radiated power (EIRP), the transmitter comprising: a first signal processing circuit configured to generate the first millimeter wave band signal: a power amplifier configured to amplify the first millimeter wave band signal; a high gain transmit antenna array configured to transmit the first millimeter wave band signal; a receiver configured to receive from the uplink direction a second millimeter wave band signal in an unlicensed frequency spectrum at a high receive gain, the receiver comprising: a high receive gain antenna array configured to receive the second millimeter wave band signal; a low noise amplifier configured to amplify the second millimeter wave band signal; a second signal processing circuit configured to process the second millimeter wave band signal.

US Pat. No. 10,057,898

DOWNLINK AND UPLINK DATA MULTIPLEXING ON WIDELY SPACED FREQUENCIES IN WIRELESS BROADBAND COMMUNICATION SYSTEM

Phazr, Inc., Allen, TX (...

1. A method of multiplexing downlink and uplink data packets in widely spaced frequencies for providing wireless broadband link between a base station and a plurality of client devices, comprising:transmitting a first data packet by the base station to a first client device at a downlink frequency f1 during a first time interval, wherein the base station does not receive data packets from the first client device during the first time interval;
receiving a second data packet by the base station from a second client device at an uplink frequency f2 during a second time interval, wherein the base station does not transmit data packets to the second client device during the second time interval;
concurrently transmitting, by the base station at least a portion of the first data packet to the first client device on the downlink frequency f1 and receiving at least a portion of the second data packet from the second client device on the uplink frequency f2, wherein there is a wide separation between the downlink frequency f1 and the uplink frequency f2, wherein the downlink frequency f1 is greater than the uplink frequency f2, and wherein the downlink frequency f1 is in the millimeter wave band and wherein the uplink frequency f2 is less than 7 GHz, and wherein there is no overlap between the downlink frequency f1 and the uplink frequency f2.

US Pat. No. 10,143,036

MILLIMETER WAVE WIRELESS SYSTEM USING LICENSED AND UNLICENSED FREQUENCY SPRECTRUM

Phazr, Inc., Allen, TX (...

1. A communications device, comprising: a transmitter configured to transmit in an uplink direction a first millimeter wave band signal in an unlicensed frequency spectrum at a low transmit equivalent isotropically radiated power (EIRP), the transmitter comprising: a first signal processing circuit configured to generate the first millimeter wave band signal; a power amplifier configured to amplify the first millimeter wave band signal; a low gain transmit antenna array configured to transmit the first millimeter wave band signal; a receiver configured to receive from the downlink direction a second millimeter wave band signal in a licensed frequency spectrum at a low receive gain, the receiver comprising: a low receive gain antenna array configured to receive the second millimeter wave band signal; a low noise amplifier configured to amplify the second millimeter wave band signal; a second signal processing circuit configured to process the second millimeter wave band signal.

US Pat. No. 10,194,327

5G RADIO SYSTEM USING SUB-7 GHZ SPECTRUM FOR UPLINK AND MILLIMETER WAVE SPECTRUM FOR DOWNLINK

Phazr, Inc., Allen, TX (...

1. A method of communication by a wireless communication device, comprising: receiving millimeter wave band downlink signals having an OFDM subcarrier spacing within a range of 120 KHz and 480 KHz, wherein the downlink signals are received in the millimeter wave band only; and transmitting sub-7 GHz band uplink signals having an OFDM subcarrier spacing within a range of 15 KHz and 60 KHz, wherein the uplink signals are transmitted in the sub-7 GHz band only, wherein the bandwidth of the millimeter wave downlink signals is greater than the bandwidth of the sub-7 GHz band uplink signals; wherein the sub-7 GHz band downlink uplink signals have a bandwidth greater than 20 MHz and less than 100 MHz and the millimeter wave band downlink signals have a bandwidth within a range of 200 MHz and 500 MHz range.

US Pat. No. 10,172,018

WIRELESS SYSTEMS AND METHODS USING MILLIMETER WAVE BAND SIGNALS WITH ASYMMETRIC DIRECTIVITY

Phazr, Inc., Allen, TX (...

1. A wireless communication system using asymmetric directivity signals, comprising:a base station configured to transmit millimeter wave band low directivity downlink signals having a wide beamwidth in separate time slots in a shared frequency channel;
a plurality of communication devices configured to receive the millimeter wave band low directivity downlink signals in the shared frequency channel;
the plurality of communication devices each configured to transmit millimeter wave band high directivity uplink signals having narrow beamwidth in different respective frequency channels,
the base station configured to receive the millimeter wave band high directivity uplink signals having narrow beamwidth in the respective frequency channels.

US Pat. No. 10,129,070

METHODS AND SYSTEMS FOR CORRECTION OF CARRIER FREQUENCY OFFSET (CFO) IN WIRELESS TRANSCEIVERS

Phazr, Inc., Allen, TX (...

1. A method of correcting carrier frequency offsets (CFOs) in a wireless transceiver configured to transmit and receive RF signals on multiple signal paths, wherein the CFOs are generated on the multiple signal paths during up-conversion and down-conversion, comprising:receiving a first predetermined number of data packets on a first signal path;
analyzing the first predetermined number of data packets to determine one or more wireless link quality metrics on the first signal path;
selecting a first local oscillator adjustment strategy for the first signal path;
adjusting a first local oscillator associated with the first signal path in accordance with the first local oscillator adjustment strategy;
receiving a second predetermined number of data packets on the first signal path;
analyzing the second predetermined number of data packets to determine the one or more wireless link quality metrics on the first signal path;
repeating the first local oscillator adjustment strategy if the wireless link quality metrics improve on the first signal path and adjusting the first local oscillator in accordance with the first local oscillator adjustment strategy;
changing to a second local oscillator adjustment strategy if the wireless link quality metrics worsen on the first signal path and adjusting the first local oscillator associated with the first signal path in accordance with the second local oscillator adjustment strategy;
receiving a third predetermined number of data packets on the first signal path;
analyzing the third predetermined number of data packets to determine the one or more link quality metrics on the first signal path;
repeating the second local oscillator adjustment strategy if the wireless link quality metrics improve on the first signal path and adjusting the first local oscillator associated with the first signal path in accordance with the second local oscillator adjustment strategy;
changing to the first local oscillator adjustment strategy if the wireless link quality worsen on the first signal path and adjusting the first local oscillator in accordance with the first local oscillator adjustment strategy,
receiving a first predetermined number of data packets on a second signal path;
analyzing the first predetermined number of data packets to determine one or more wireless link quality metrics on the second signal path;
selecting a first local oscillator adjustment strategy for the second signal path;
adjusting a second local oscillator associated with the second signal path in accordance with the first local oscillator adjustment strategy;
receiving a second predetermined number of data packets on the second signal path;
analyzing the second predetermined number of data packets to determine the one or more wireless link quality metrics on the second signal path;
repeating the first local oscillator adjustment strategy if the wireless link quality metrics improve on the second signal path and adjusting the second local oscillator in accordance with the first local oscillator adjustment strategy;
changing to a second local oscillator adjustment strategy if the wireless link quality metrics worsen on the second signal path and adjusting the second local oscillator associated with the second signal path in accordance with the second local oscillator adjustment strategy;
receiving a third predetermined number of data packets on the second signal path;
analyzing the third predetermined number of data packets to determine the one or more link quality metrics on the second signal path;
repeating the second local oscillator adjustment strategy if the wireless link quality metrics improve on the second signal path and adjusting the second local oscillator in accordance with the second local oscillator adjustment strategy;
changing to the first local oscillator adjustment strategy if the wireless link quality worsen on the second signal path and adjusting the second local oscillator in accordance with the first local oscillator adjustment strategy,
wherein CFOs are corrected by improving the link quality metrics on the multiple signal paths.

US Pat. No. 9,876,525

PORTABLE MILLIMETER-WAVE COMMUNICATIONS DEVICE

Phazr, Inc., Allen, TX (...

1. A module configured to convert a portable wireless communications device to a millimeter-wave wireless communications device,
the module comprising:
a plurality of millimeter-wave antennas configured to receive millimeter-wave signals;
at least one low-noise amplifier (LNA) configured to amplify the received millimeter-wave signals;
a down-conversion circuit configured to down-convert the amplified millimeter-wave signals to sub-6 GHz signals;
a plurality of coupling antennas configured to couple the down-converted sub-6 GHz signals to a plurality of second antennas
inside the portable communications device.

US Pat. No. 10,044,111

WIDEBAND DUAL-POLARIZED PATCH ANTENNA

Phazr, Inc., Allen, TX (...

1. A wideband dual-polarized patch antenna comprising:a ground plane layer;
a first dielectric substrate layer disposed on the ground plane layer;
a first radiator patch disposed on the first dielectric substrate layer;
a second dielectric substrate layer disposed on the first radiator patch;
a second radiator patch disposed on the second dielectric substrate layer;
a third radiator patch disposed on the third dielectric substrate layer;
a plurality of arc-shaped conductive loading elements disposed on at least one of the dielectric substrate layers, the arc-shaped conductive loading elements encircling at least one of the radiator patches and positioned spaced from the radiator patches; and
first and second feed lines electrically connected to at least one of the radiator patches and to the ground plane, the first and second feed lines configured to excite the antenna in two separate directions.