HARQ/CSI ACK FEEDBACK METHOD OVER UNLICENSED CARRIER

摘要

Systems and methods relating to the use of an unlicensed Component Carrier (CC) for Hybrid Automatic Repeat Request (HARQ) and/or Channel State Information (CSI) feedback for a downlink CC or a downlink CC group are disclosed. In some embodiments, a method of operation of a wireless device in a cellular communications network comprises selecting, from a plurality of uplink CCs configured for the wireless device for HARQ and/or CSI feedback of a downlink CC or a downlink CC group, an uplink CC for HARQ and/or CSI feedback of the downlink CC or the downlink CC group based on channel availability. The method further comprises transmitting HARQ and/or CSI feedback of the downlink CC or the downlink CC group over the uplink CC selected from the plurality of uplink CCs configured for the wireless device.

主权项

1. A method of operation of a wireless device in a cellular communications network, comprising:
selecting, from a plurality of uplink component carriers configured for the wireless device for Hybrid Automatic Repeat Request, HARQ, and/or Channel State Information, CSI, feedback of a downlink component carrier or a downlink component carrier group, an uplink component carrier for HARQ and/or CSI feedback of the downlink component carrier or the downlink component carrier group based on channel availability; and transmitting HARQ and/or CSI feedback of the downlink component carrier or the downlink component carrier group over the uplink component carrier selected from the plurality of uplink component carriers configured for the wireless device.