Channel Optimization in Half Duplex Communications Systems

• US 20160338076A1
• Filed: 07/29/2016
• Published: 11/17/2016
• Est. Priority Date: 01/24/2014
• Status: Active Grant

• Current Assignee: Mimosa Networks, Inc. (Airspan Networks Inc.)
• Original Assignee: Mimosa Networks, Inc. (Airspan Networks Inc.)
• Inventors: Hinman, Brian, Gurevich, David, Keskinen, Miika, Ponnampalam, Vishakan, Wong, Chiu Ngok Eric
• Granted Patent: US 9,888,485 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 27/0006 Assessment of spectral gaps suitable for allocating digitally modulated signals, e.g. for carrier allocation in cognitive radio for spectrum sharing between different networks H04W16/14
• CPC Class Codes: H04L 5/0033 each allocating device acting autonomously, i.e. without negotiation with other allocating devices
• CPC Class Codes: H04L 5/16 Half-duplex systems; Simplex/duplex switching; Transmission of break signals non-automatically inverting the direction of transmission
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 72/542 using measured or perceived quality

Abstract

Channel Optimization in Half Duplex Communications Systems is provided herein. Methods may include obtaining at a first terminal, radio frequency (RF) spectral information local to the first terminal, analyzing at the first terminal, RF spectral information for a second terminal that is not co-located with the first terminal, transmitting data to the second terminal on a second terminal optimal frequency band, and receiving data from the second terminal on the first terminal optimal frequency band, where the first terminal optimal frequency being based upon the RF spectral information local to the first terminal.

Claims

1. A method for transmitting data between network devices using channel optimization in half duplex communications, the method comprising:

obtaining at a first terminal, radio frequency (RF) spectral information local to the first terminal;

analyzing at the first terminal, RF spectral information for a second terminal that is not co-located with the first terminal;

transmitting data to the second terminal on a second terminal optimal frequency band;

receiving data from the second terminal on the first terminal optimal frequency band, the first terminal optimal frequency being based upon the RF spectral information local to the first terminal; and

wherein selecting at the first terminal a first terminal optimal frequency band includes analyzing the RF spectral information for the first terminal to determine a signal-to-noise ratio, an error vector magnitude, an interference plus noise power spectrum, and an overlapping basic service set traffic activity.

2. A dual channel network device, comprising:

a time division duplexing interface for transmitting or receiving data on a first channel;

a time division duplexing and frequency division duplexing interface for transmitting or receiving data on a second channel;

a processor; and

a memory for storing executable instructions, the processor executing the instructions to perform operations comprising;

determining radio frequency (RF) spectral information local to the device;

selecting at the device an optimal frequency band for the first channel based upon the RF spectral information;

selecting at the device an optimal frequency band for the second channel based upon the RF spectral information;

transmitting management frames that include the optimal frequency band for the first channel and the optimal frequency band for the second channel to one or more additional devices on a network; and

receiving data from the one or more devices on either of the first and second channels.

3. A terminal device, comprising:

a processor; and

a memory for storing executable instructions, wherein execution of the instructions causes the processor to;

determine radio frequency (RF) spectral information local to the terminal device;

analyze spectral information for one or more additional terminal devices in a network that are not co-located with the terminal device;

determine an optimal frequency band for each of the one or more additional terminal devices;

transmit data to the one or more additional terminal devices using a the optimal frequency bands; and

receive data from the one or more additional terminal devices on an optimal frequency band that is based upon the RF spectral information local to the terminal device; and

wherein the terminal device is further configured to determine an optimal frequency band for each of the one or more additional terminal devices by analyzing RF spectral information for each of the one or more additional terminal devices to determine a signal-to-noise ratio, an error vector magnitude, an interference plus noise power spectrum, and an overlapping basic service set traffic activity.