SYSTEMS AND METHODS FOR CONTENTION ACCESS IN LICENSE ASSISTED ACCESS
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United States of America Patent
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Issued Date -
Jul 21, 2016
app pub date -
Jan 13, 2016
filing date -
Jan 16, 2015
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Abstract
A communication device is described. The communication device includes a processor and memory in electronic communication with the processor. Instructions stored in the memory are executable to configure a license-assisted-access (LAA) cell. The instructions are also executable to determine a region for CCA slots and contention access. The instructions are further executable to generate a backoff counter based on a contention window size N. The instructions are additionally executable to perform clear channel assessment (CCA) detection. The instructions are also executable to decrement the backoff counter if the channel is idle in a concerned one of the CCA slots. The instructions are further executable to transmit at least one subframe after the CCA slots if the backoff counter reaches zero within the region for CCA slots.
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