Control channel power control in a wireless network using primary and secondary transmit power control indexes

摘要

A wireless device receives a message comprising a transmit power control (TPC) radio network temporary identifier (RNTI), a primary TPC index for a primary PUCCH and a secondary TPC index for a secondary PUCCH. The wireless device searches a common search space of a primary cell for a downlink control information (DCI) associated with the TPC RNTI. The DCI comprises an array of TPC commands and the secondary TPC index determines a TPC command in the array. The wireless device adjusts uplink signal transmission power of the secondary PUCCH according to the TPC command.

主权项

1. A method comprising:
receiving at least one message comprising:
configuration parameters of a plurality of cells, the plurality of cells grouped into a plurality of physical uplink control channel (PUCCH) groups comprising:
a primary PUCCH group comprising a primary cell with a primary PUCCH transmitted to a base station; anda secondary PUCCH group comprising a PUCCH secondary cell with a secondary PUCCH transmitted to the base station;a transmit power control (TPC) radio network temporary identifier (RNTI);a primary TPC index for the primary PUCCH, the primary TPC index indicating a first downlink control information (DCI) format; anda secondary TPC index for the secondary PUCCH, the secondary TPC index indicating the first DCI format and having a different index value from the primary TPC index; searching a common search space of the primary cell for a DCI associated with the TPC RNTI, wherein:
the DCI is of the first DCI format and comprises an array of TPC commands comprising a first TPC command and a second TPC command; andthe secondary TPC index identifies the second TPC command in the array; and adjusting uplink transmission power of the secondary PUCCH employing the second TPC command when the DCI is found.