the indexes, in the random access system frame, of the time units in the configuration table include {9, 11, 13, 15, 17, 19, 29, 31, 33, 35, 37, 39} if the uplink-downlink configuration period is 0.5 ms;
that the one or more indexes, in the random access system frame, of the one or more time units in the configuration table include one or more of {10, 11, 14, 15, 18, 19, 30, 31, 34, 35, 38, 39} if the uplink-downlink configuration period is 1 ms includes:
the indexes, in the random access system frame, of the time units in the configuration table include {1, 11, 14, 15, 18, 19, 30, 31, 34, 35, 38, 39} if the uplink-downlink configuration period is 1 ms;
that the one or more indexes, in the random access system frame, of the one or more time units in the configuration table include one or more of {4, 12, 13, 14, 15, 29, 30, 31, 36, 37, 38, 39} if the uplink-downlink configuration period is 2 ms includes:
the indexes, in the random access system frame, of the time units in the configuration table include {13, 14, 15, 29, 30, 31, 37, 38, 39} if the uplink-downlink configuration period is 2 ms;
that a slot included in the first optional time domain resource can be one or more of {9, 15, 16, 17, 18, 19, 29, 35, 36, 37, 38, 39} if the uplink-downlink configuration period is 2.5 ms includes:
the indexes, in the random access system frame, of the time units in the configuration table include {17, 19, 37, 39} if the uplink-downlink configuration period is 2.5 ms; or