Method for transmitting and receiving uplink signal, user equipment, and base station

摘要

The present invention categorizes a plurality of cells that are configured to a user equipment into at least one cell group, and configures an anchor cell for each of the cell groups. The anchor cell for each of the cell groups is used for transmitting a PUCCH, which carries uplink control information on a pertinent cell group, and in a random access process for acquiring a timing advance with respect to the pertinent cell group. When the uplink control information is transmitted from a PUSCH of one cell, the PUSCH carries only the uplink control information on the cell group to which the one cell belongs and does not carry information on another cell group.

主权项

1. A method for receiving, by a user equipment configured with a plurality of serving cells, signals, the method comprising:
configuring, by the user equipment, a primary cell (PCell) group comprised of a PCell and zero or more secondary cells (SCells) among the plurality of serving cells and an SCell group comprised of one or more SCells among the plurality of serving cells, the SCell group not including the PCell and the zero or more SCells belonging to the PCell group; receiving, by the user equipment, a physical downlink control channel (PDCCH) carrying an uplink grant or downlink grant for a scheduled cell, which is one of the plurality of serving cells, through a scheduling cell among the plurality of serving cells; and performing, by the user equipment, a physical uplink shared channel (PUSCH) transmission through the scheduled cell according to the uplink grant or a physical downlink shared channel (PDSCH) reception through the scheduled cell according to the downlink grant, wherein the scheduled cell belongs to the PCell group when the scheduling cell belongs to the PCell group, and the scheduled cell belongs to the SCell group when the scheduled cell belongs to the SCell group.