A time domain resource allocation method, the method being performed by a mobile terminal and comprising: acquiring first information which includes search space configuration information, and optionally further includes one or more of control resource set, CORESET, configuration information, and a bandwidth part type; determining a physical downlink shared channel, PDSCH, time domain resource allocation table to be applied to a PDSCH, wherein the PDSCH time domain resource allocation table has a correspondence with the first information and a multiplexing pattern between a synchronization signal/physical broadcast channel block, SSB, and a CORESET. wherein determining the PDSCH time domain resource allocation table to be to be applied to the PDSCH comprises determining, according to the multiplexing pattern between the SSB and the CORESET and the search space configuration information, the PDSCH time domain resource allocation table to be applied to the PDSCH; wherein the time domain resource allocation method is characterized in that determining, according to the multiplexing pattern between the SSB and the CORESET and the search space configuration information, the PDSCH time domain resource allocation table to be applied to the PDSCH comprises: when a search space index configured in the search space configuration information is zero or no search space is configured in the search space configuration information, determining the PDSCH time domain resource allocation table to be applied according to the multiplexing pattern between the SSB and the CORESET; and when the search space index configured in the search space configuration information is not zero or a search space is configured in the search space configuration information, determining a default PDSCH time domain resource allocation table A as the PDSCH time domain resource allocation table. acquiring first information which includes search space configuration information, and optionally further includes one or more of control resource set, CORESET, configuration information, and a bandwidth part type; determining a physical downlink shared channel, PDSCH, time domain resource allocation table to be applied to a PDSCH, wherein the PDSCH time domain resource allocation table has a correspondence with the first information and a multiplexing pattern between a synchronization signal/physical broadcast channel block, SSB, and a CORESET. wherein determining the PDSCH time domain resource allocation table to be to be applied to the PDSCH comprises determining, according to the multiplexing pattern between the SSB and the CORESET and the search space configuration information, the PDSCH time domain resource allocation table to be applied to the PDSCH; wherein the time domain resource allocation method is characterized in that determining, according to the multiplexing pattern between the SSB and the CORESET and the search space configuration information, the PDSCH time domain resource allocation table to be applied to the PDSCH comprises: when a search space index configured in the search space configuration information is zero or no search space is configured in the search space configuration information, determining the PDSCH time domain resource allocation table to be applied according to the multiplexing pattern between the SSB and the CORESET; and when the search space index configured in the search space configuration information is not zero or a search space is configured in the search space configuration information, determining a default PDSCH time domain resource allocation table A as the PDSCH time domain resource allocation table. when a search space index configured in the search space configuration information is zero or no search space is configured in the search space configuration information, determining the PDSCH time domain resource allocation table to be applied according to the multiplexing pattern between the SSB and the CORESET; and when the search space index configured in the search space configuration information is not zero or a search space is configured in the search space configuration information, determining a default PDSCH time domain resource allocation table A as the PDSCH time domain resource allocation table.