User equipment, enodeb and wireless communication method
AssigneePanasonic Intellectual Property Corporation of America
InventorsLI WANG, HIDETOSHI SUZUKI, JOACHIM LOEHR, MICHAEL EINHAUS, LILEI WANG, MASAYUKI HOSHINO
Life of this patent
Estimating the term…
Abstract
Provided are a user equipment (UE), an eNode B (eNB) and a wireless communication method for Licensed-Assisted Access (LAA). A UE for LAA according to one embodiment can comprise: a first circuit operative to perform a first listen-before-talk (LBT) in a system bandwidth; a second circuit operative to perform a second LBT in an allocated bandwidth; and a transmitter operative to transmit a signal in the allocated bandwidth if the first LBT is unsuccessful and the second LBT is successful.
Claims6
An eNodeB (eNB), comprising:
- a transmitter, which, in operation, transmits to a user equipment (UE) via a Physical Downlink Control Channel (PDCCH) an indication of an allocated bandwidth with an unlicensed carrier;
- and
- a receiver, which,
- in response to the UE unsuccessfully performing a first listen-before-talk (LBT) in a system bandwidth with the unlicensed carrier and successfully performing a second LBT in the allocated bandwidth, receives an uplink channel from the UE over the allocated bandwidth;
- and
- in response to the UE unsuccessfully performing both the first LBT and the second LBT, does not receive the uplink channel from the UE.
A method performed by an eNodeB (eNB), comprising:
- transmitting to a user equipment (UE) via a Physical Downlink Control Channel (PDCCH) an indication of an allocated bandwidth with an unlicensed carrier,
- in response to the UE unsuccessfully performing a first listen-before-talk (LBT) in a system bandwidth with the unlicensed carrier and successfully performing a second LBT in the allocated bandwidth, receiving an uplink channel from the UE over the allocated bandwidth, and
- in response to the UE unsuccessfully performing both the first LBT and the second LBT, not receiving the uplink channel from the UE.
Dependencies are inferred from the claim text.