Method and Device for transmitting multi-link information, and Storage Medium

A multi-link information transmission device, comprising:

• an information setting unit, configured to set RNR information, wherein the RNR information comprises an MLD parameter, the MLD parameter comprises:
• an MLD ID field, a Link ID field and a Change Sequence field,
• the MLD ID field is used for identifying one multi-link network access device in the current message, wherein the setting method of the MLD ID comprises:
• in a case that a reported second network access point belongs to the same multi-link network access device as a first network access device which sends the first message, the MLD ID is set to a first value;
• the first value is selected from two values of 0 and M, and M is the maximum integer represented by the number of bits used by the MLD ID;
• in a case that a reported second network access point does not belong to the same multi-link network access device as the first network access device, but a Basic Service Set Identifier (BSSID) of the second network access device belongs to the same Multiple BSSID set as the first network access device, the MLD ID is set to a second value;
• the second value is equal to a BSSID index of the second network access point, and the BSSID index is used for identifying a network access point in one Multiple BSSID set;
• in a case that a second network access point does not belong to the same multi-link network access device as the first network access device, and the BSSID of the second network access device does not belong to the same Multiple BSSID set as the first network access device, the MLD ID is set to a third value, the third value is an integer, and the value range of the third value is greater than Nmax and less than M, wherein Nmax is a maximum number of the BSSID that is allowed to be used by the Multi BSSID set;
• in a case that the second network access point is not a multi-link network access device, the MLD ID is set to a fourth value;
• the fourth value is selected from two values of 0 and M, and the first value, the second value, the third value, and the fourth value are different;
• the Link ID field is used for identifying one link in one multi-link network access device or multi-link terminal, and the Change Sequence field is used for indicating whether critical information is update;
• and
• a message sending unit, configured to send a first message, wherein the first message comprises the RNR information.