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Systems and methods for LTE allocation in a shared unlicensed spectrum

  • US 10,448,366 B2
  • Filed: 03/27/2017
  • Issued: 10/15/2019
  • Est. Priority Date: 03/25/2016
  • Status: Active Grant
First Claim
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1. A method for allocating aggressive signal carriers in a target band of a wireless communication network including at least one long term evolution (LTE) node and at least one non-LTE transmission source, the target including at least two adjacent pairs of contiguous radio frequency (RF) channels, the method comprising the steps of:

  • scanning each contiguous RF channel of the target band to measure a respective value of non-LTE RF energy therein;

    determining, from the measured non-LTE RF energy, that a first one of the contiguous RF channels is occupied by a non-LTE carrier;

    allocating an LTE carrier to a second one of the contiguous RF channels, different than the first one of the contiguous RF channels, based on the determination, wherein the first one of the contiguous RF channels resides in a first one of the at least two adjacent pairs, and the second one of the contiguous RF channels resides in a second one of the at least two adjacent pairs, and wherein the step of determining further comprises a substep of detecting that the remaining contiguous RF channel of the second one of the at least two adjacent pairs does not contain significant non-LTE RF energy;

    bonding the second one of the contiguous RF channels with the remaining contiguous RF channel within the second one of the at least two adjacent pairs to form an expanded RF channel; and

    assigning the expanded RF channel a lower priority with respect to further channel allocation in the target band.

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