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Hybrid automatic repeat request (HARQ) in listen before talk systems
Hybrid automatic repeat request (HARQ) in listen before talk systems
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机译:在谈话系统之前倾听混合自动重复请求(HARQ)
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摘要
Systems and methods presented herein provide for increasing a contention window of a UE employing a LTE communications operating in a radio frequency (RF) band comprising a conflicting wireless technology. In one embodiment, an eNodeB receives a transport block of data from a user equipment (UE). The transport block includes a cyclic redundancy check (CRC). The eNodeB then determines a checksum of the transport block based on the CRC, fails the checksum, and transmits a non-acknowledgement (NACK) of the transport block to the UE based on the failed checksum. The UE, in response to the NACK, increases a contention window and re-transmits the transport block to the eNodeB.
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