Physical uplink control channel resource allocation for multiple component carriers

摘要

Techniques for sending control information in a wireless network are disclosed. A multi-carrier user equipment (UE) may receive a downlink grant on a physical downlink control channel (PDCCH) on a first component carrier (CC). The UE may also receive a data transmission associated with the PDCCH on a physical downlink shared channel (PDSCH) on a second CC. In some examples, the UE determines physical uplink control channel (PUCCH) resources for acknowledging the data transmission based on the first CC on which the PDCCH is received, the second CC on which the data transmission is received, and a transmission mode of the second CC. The UE may send acknowledgement/negative acknowledgement (ACK/NACK) information for the data transmission based on the PUCCH resources.

主权项

1. A method for wireless communication, comprising:
identifying a first component carrier (CC) on which a physical downlink control channel (PDCCH) is received by a user equipment (UE), the first CC being one of a plurality of CCs configured for the UE; identifying a second CC on which a data transmission associated with the PDCCH is received by the UE, the second CC being one of the plurality of CCs configured for the UE, wherein the data transmission comprises one or more transport blocks; determining a transmission mode of the second CC; determining that K transport blocks are supported by the transmission mode of the second CC, where K is one or greater; determining K physical uplink control channel (PUCCH) resources based on the first CC on which the PDCCH is received and the second CC on which the data transmission is received; and sending, by the UE, acknowledgement/negative acknowledgement (ACK/NACK) information for the data transmission based on the PUCCH resources.