US 9,813,915 B2
Base station and user terminal in spectrum sharing system and method for determining usage of shared spectrum
Chih-Chiang Wu, Taichung (TW); Chiu-Wen Chen, Taipei (TW); and Chun-Che Chien, Taipei (TW)
Assigned to Institute For Information Industry, Taipei (TW)
Filed by Institute For Information Industry, Taipei (TW)
Filed on Jul. 7, 2016, as Appl. No. 15/204,878.
Claims priority of provisional application 62/189,206, filed on Jul. 7, 2015.
Prior Publication US 2017/0013471 A1, Jan. 12, 2017
Int. Cl. H04W 72/00 (2009.01); H04W 16/14 (2009.01); H04W 24/10 (2009.01)
CPC H04W 16/14 (2013.01) [H04W 24/10 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A base station of an operator in a spectrum sharing system, comprising:
a sensor, configured to sense signals over a shared spectrum;
a transceiver, configured to receive at least one measurement report transmitted from at least one user terminal regarding signals over the shared spectrum sensed by the at least one user terminal; and
a processor, connected with the sensor and the transceiver and configured to determine whether to utilize the shared spectrum according to the signals over the shared spectrum sensed by the sensor or acquired from the at least one measurement report;
wherein the processor is further configured to:
determine whether the signals over the shared spectrum include signals of other operators;
compare energy of the signals over the shared spectrum with a first threshold and a second threshold being larger than the first threshold as determining that the signals over the shared spectrum include signals of the other operators; and
enable the operator to negotiate with the other operators for usage of the shared spectrum, if the energy of the signals over the shared spectrum is larger than the first threshold but smaller than the second threshold.