| 主权项 |
1. A method implemented in a base station used in a wireless communications system that supports flexible-time division duplex (flexible-TDD) uplink-downlink (UL-DL) configuration, the method comprising:
configuring a first type of user equipment (UE) with a first type of configuration; configuring a second type of UE with a second type of configuration; receiving from a user equipment a hybrid automatic repeat request-acknowledgement (HARQ-ACK) signal according to a DL association set, the DL association set comprising:
a first DL association set for a UL-DL TDD configuration used by the first type of UE, anda second DL association set for a reference UL-DL TDD configuration including a third DL association set for PUCCH resource mapping used by the second type of UE, the third DL association set comprising
a first subset indicating one or more subframes including at least one of a fixed DL subframe and a special subframe, the first subset having a size which is dependent on the number of subframes in the first DL association set which are used as flexible subframes in the second DL association set,a second subset containing remaining fixed subframes in the third DL association set, anda third subset which contains flexible subframes in the third DL association set, performing physical uplink control channel (PUCCH) resource allocation according to the received DL association set, wherein, for subframes in the second subset, a PUCCH resource is allocated to flexible subframes with a higher probability of being used as DL subframes ahead of flexible subframes with a lower probability of being used as DL subframes, and the PUCCH resource allocation is performed independently for the first subset, the second subset, and the third subset. |
