Downlink data receiving method and device, downlink data transmitting method and device, and storage medium

A method for transmitting downlink data, comprising:

• determining, by a base station, control resource set (CORESET) configuration information related to a plurality of antenna panels;
• transmitting, by the base station, a first physical downlink control channel (PDCCH) to a terminal through a first antenna panel of the plurality of antenna panels, the first PDCCH carrying a first DCI, the first DCI being configured to schedule downlink data transmitted by the base station to the terminal;
• and
• transmitting, by the base station, downlink data to the terminal through the first antenna panel, so that the terminal receives the downlink data by using a default receiving beam, wherein the default receiving beam is a receiving beam used by the terminal for receiving a second PDCCH through the first antenna panel, wherein the second PDCCH is a PDCCH received in a latest scheduling unit transmitted through the first antenna panel, using a CORESET with a smallest number in CORESETs, wherein the first and second PDCCHs are transmitted by the CORESETs through the first antenna panel.

A device for receiving downlink data, comprising:

• a processor;
• and
• a memory, configured to store instructions executable by the processor,
• wherein the processor is configured to:
• determine control resource set (CORESET) configuration information, wherein the CORESET configuration information comprises identification information of an antenna panel using a CORESET for physical downlink control channel (PDCCH) transmission;
• receive a first downlink control information (DCI) carried by a first PDCCH sent by a base station through a first antenna panel, wherein the first DCI is configured to schedule downlink data transmitted by the base station to a terminal;
• in response to determining that the terminal cannot determine a target receiving beam for receiving the downlink data according to the first DCI, determine a default receiving beam, wherein the default receiving beam is a receiving beam used by the terminal for receiving a second PDCCH through the first antenna panel, wherein the second PDCCH is a PDCCH received in a latest scheduling unit transmitted through the first antenna panel, using a CORESET with a smallest number in CORESETs, wherein the first and second PDCCHs are transmitted by the CORESETs through the first antenna panel;
• and
• receive the downlink data using the default receiving beam.