US Patent No. 10,397,898

BASE STATION AND CHANNEL SELECTION METHOD THEREOF


Patent No. 10,397,898
Issue Date August 27, 2019
Title Base Station And Channel Selection Method Thereof
Inventorship Chiu-Wen Chen, Taipei (TW)
Chun-Che Chien, Taipei (TW)
Assignee Institute For Information Industry, Taipei (TW)

Claim of US Patent No. 10,397,898

1. A base station, having an overlapped coverage with at least one neighboring base station, a plurality of user equipments (UEs) being located within the overlapped coverage, the base station being able to configure a Primary Component Carrier (PCC) and a plurality of Secondary Component Carriers (SCCs), the PCC being a first Long Term Evolution (LTE) band, and at least one of the SCCs being not an LTE band, the base station comprising:a transceiver, being configured to receive a plurality of channel status parameters from the UEs, each of the channel status parameters corresponds to one of the SCCs; and
a processor, being electrically connected to the transceiver and configured to sort the SCCs according to the channel status parameters so that the SCCs have a first order, determine a subset of the SCCs as at least one candidate SCC according to the channel status parameters, determine a subset of the at least one candidate SCC as at least one available SCC by performing clear channel assessment (CCA) for each of the at least one candidate SCC according to the first order, and allocate the at least one available SCC to at least one of the UEs;
wherein the candidate SCC with a higher priority level according to the first order requires a fewer number of times of successfully performed CCA to become one of the at least one available SCC.