US 2019/0098665 A1 · SYSTEMS AND METHODS FOR DYNAMICALLY SELECTING ENERGY DETECTION THRESHOLDS (EDTS) IN RADIO NODES DEPLOYING LISTEN BEFORE TALK WITHIN A COORDINATED NETWORK TO IMPROVE THROUGHPUT ON SHARED SPECTRUM

Abstract

Systems and methods for dynamically selecting energy detection thresholds (EDTs) in radio nodes deploying listen before talk within a coordinated network to improve throughput on shared spectrum are disclosed. The radio nodes are configured to coordinate to deploy mechanisms to avoid or reduce interference issues, including collisions, with use of shared spectrum (e.g., unlicensed spectrum). One such mechanism is Listen Before Talk (LBT), and a radio node deploying LBT sets an EDT at which the radio node hears traffic from neighboring radio nodes on the shared spectrum. In an exemplary aspect, the EDT of radio nodes in the coordinated network of radio nodes can be dynamically selected and/or adjusted to improve throughput of the individual radio nodes and/or of the network of radio nodes as a whole.

Claims22

Dependent claims

A method of selecting energy detection thresholds (EDTs) in a network of radio nodes deploying listen before talk, comprising:

identifying at least one of a plurality of radio node pairs in the network of radio nodes;
and
for each of the identified at least one of the plurality of radio node pairs:
calculating a first throughput for a respective radio node pair operating on a first EDT as a function of a signal-to-interference-plus noise ratio (SINR);
calculating a second throughput for the respective radio node pair operating on a second EDT, lower than the first EDT, as a function of a signal-to-noise ratio (SNR);
selecting an EDT for the respective radio node pair to be the first EDT when the first throughput is higher than the second throughput;
and
selecting the EDT for the respective radio node pair to be the second EDT when the second throughput is higher than the first throughput.

5 more elements

A method of selecting an energy detection threshold (EDT) for a first radio node deploying listen before talk, comprising:

determining a first radio node pair between the first radio node and a second radio node;
detecting a first signal parameter, a first interference parameter, and a first noise parameter associated with the first radio node;
calculating a first throughput for the first radio node operating on a first EDT as a first function of a first signal-to-interference-plus noise ratio (SINR) based on the first signal parameter, the first interference parameter, and the first noise parameter;
calculating a second throughput for the first radio node operating on a second EDT, lower than the first EDT, as a second function of a first signal-to-noise ratio (SNR) based on the first signal parameter and the first noise parameter;
setting an operating EDT for the first radio node to be the first EDT when the first throughput is higher than the second throughput;
and
setting the operating EDT for the first radio node to be the second EDT when the second throughput is higher than the first throughput.

4 more elements

Dependencies are inferred from the claim text.

Systems and methods for dynamically selecting energy detection thresholds (edts) in radio nodes deploying listen before talk within a coordinated network to improve throughput on shared spectrum

Life of this patent

Systems and methods for dynamically selecting energy detection thresholds (edts) in radio nodes deploying listen before talk within a coordinated network to improve throughput on shared spectrum

Life of this patent

Abstract

Claims22