Systems and methods for backoff procedures for licensed-assisted access
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United States of America Patent
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Jan 30, 2018
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app pub date -
Jun 28, 2016
filing date -
Jun 30, 2015
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Abstract
An evolved NodeB (eNB) is described. The eNB includes a processor and memory in electronic communication with the processor. Instructions stored in the memory are executable to maintain a contention window size. The instructions are also executable to increase the contention window size according to hybrid automatic request acknowledgement/negative acknowledgment (HARQ-ACK) value(s) corresponding to physical downlink shared channel (PDSCH) transmission(s) in a first subframe. The first subframe is a starting subframe of a previous downlink transmission burst on a licensed-assisted access (LAA) carrier for which HARQ-ACK has been fed back.
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