With reference to the tenth aspect or the first possible implementation manner of the tenth aspect, in a second possible implementation manner of the tenth aspect, before the receiving, by a UE, a first E-HICH sent by a first base station, the method further includes receiving, by the UE, first instruction signaling sent by a RNC, where the first instruction signaling is used to instruct the UE to receive the first E-HICH sent by the first base station, and the first instruction signaling includes a channelization code and a signature sequence of the first E-HICH, where the channelization code is used to indicate a spreading code to be used by the UE to decode a channel occupied by the first E-HICH, and the signature sequence is used to indicate an orthogonal sequence to be used by the UE to decode each E-HICH subframe.
With reference to the second possible implementation manner of the tenth aspect, in a third possible implementation manner of the tenth aspect, the first instruction signaling further includes timing information of the first E-HICH, where the timing information of the first E-HICH is used to indicate a start time location for the UE to receive each subframe of the first E-HICH.
With reference to the third possible implementation manner of the tenth aspect, in a fourth possible implementation manner of the tenth aspect, the timing information of the first E-HICH is a timing offset τF-DPCH and/or a symbol location of a fractional downlink physical channel (F-DPCH) of the first base station.