In a possible design, that one or more time units in the configuration table are determined based on an uplink-downlink configuration period and a second time unit is specifically: determining a plurality of time domain intervals based on the uplink-downlink configuration period, where each time domain interval includes N time units, and N is an integer greater than or equal to 1; and determining the time unit in the configuration table based on the second
In a possible design, the determining the time unit in the configuration table based on the second
In a possible design, the time unit in the configuration table is located in a first time domain set in the random access system frame, and the time unit in the configuration table does not overlap the second time unit; and the first time domain set is