Method and system for dynamic spectrum access

• US 9,538,388 B2
• Filed: 08/14/2009
• Issued: 01/03/2017
• Est. Priority Date: 05/12/2006
• Status: Expired due to Fees

• Current Assignee: Shared Spectrum Company
• Original Assignee: Shared Spectrum Company
• Inventors: McHenry, Mark Allen, Bazarov, Igor Anatoly, Livsics, Jevgenijs, Perich, Filip, Ritterbush, Olga K., Steadman, Karl N.
• Primary Examiner(s): Bilodeau, David
• Application Number:
  US12/541,616
• Publication Number:
  US 20100173586A1
• Time in Patent Office: 2,699 Days
• Field of Search: 455/62
• 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: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/541 using the level of interference

Abstract

Methods and systems for dynamic spectrum access (DSA) in a wireless network are provided. A DSA-enabled device may sense spectrum use in a region and, based on the detected spectrum use, select one or more communication channels for use. The devices also may detect one or more other DSA-enabled devices with which they can form DSA networks. A DSA network may monitor spectrum use by cooperative and non-cooperative devices, to dynamically select one or more channels to use for communication while avoiding or reducing interference with other devices.

Claims

1. A device comprising:

an environmental sensing module to detect spectrum availability on a first channel;

a module to coordinate dynamic spectrum access by the device and at least one other cooperative device based on the spectrum availability detected by said environmental sensing module; and

a transceiver to communicate, during a first time period, with the at least one other cooperative device on a second channel identified as available for use by the device based on the spectrum availability detected by said environmental sensing module, the second channel being different from the first channel;

said environmental sensing module configured to detect spectrum availability on the first channel concurrently with said transceiver communicating with the at least one other cooperative device on the second channel; and

further comprising a scheduler configured to schedule a time period during which each of the device and the cooperative device refrain from transmitting.