System message transmission method and device, and system message reception method and device

An electronic device, comprising:

• a processor;
• a memory storing instructions executable by the processor;
• wherein the processor is configured to:
• broadcast minimum system information, wherein the minimum system information comprises first indication information, and the first indication information is configured to indicate a modification period of second indication information and/or third indication information;
• wherein the second indication information is configured to indicate whether target other system information transmitted in an on-demand manner among other system information is in a being transmitted state, and the third indication information is configured to indicate a transmission manner of the target other system information.

An electronic device, comprising:

• a processor;
• a memory storing instructions executable by the processor;
• wherein the processor is configured to:
• receive minimum system information transmitted from a base station, wherein the minimum system information comprises first indication information, and the first indication information is configured to indicate a modification period of second indication information and/or third indication information, wherein the second indication information is configured to indicate whether target other system information transmitted in an on-demand manner among other system information is in a being transmitted state, and the third indication information is configured to indicate a transmission manner of the target other system information;
• if it is determined according to the modification period that the target other system information is in the being transmitted state, receive the target other system information in a time window corresponding to transmission of the target other system information.