Patent ID: 9300457
Filing Date: 2016-03-29
CPC Classification: H04L,H04W

Claim Text:
1. A terminal device comprising: a transmission processor configured and/or programmed to perform a transmission of HARQ-ACK (Hybrid Automatic Repeat reQuest-ACKnowledgement) by using a physical uplink control channel resource for the transmission; and a determination processor configured and/or programmed to determine the physical uplink control channel resource, wherein in a case that the terminal device is configured with a first EPDCCH (Enhanced Physical Downlink Control CHannel)-PRB (Physical Resource Block)-set with a value, and being configured with a second EPDCCH-PRB set with the value, the value is used to generate a first demodulation reference signal associated with a first EPDCCH belonging to the first EPDCCH-PRB-set, and the value being used to generate a second demodulation reference signal associated with a second EPDCCH belonging to the second EPDCCH-PRB-set, in a case that the terminal device receives a first EPDCCH candidate with first downlink control information with a payload size, the first EPDCCH candidate corresponding to one of the first EPDCCH-PRB-set and the second EPDCCH-PRB-set and is mapped to a set of resource elements, in a case that the terminal device is configured to monitor a second EPDCCH candidate with second downlink control information with the payload size, the second EPDCCH candidate corresponding to other of the first EPDCCH-PRB-set and the second EPDCCH-PRB-set and is mapped to the set of resource elements, and in a case that an index of a first ECCE (Enhanced Control Channel Element) of the first EPDCCH candidate is used for determining the physical uplink control channel resource, the determination processor is configured and/or programmed to determine the index based on the first EPDCCH-PRB-set.