A data communication method, the method is applied to a station, STA, the STA comprises a primary transceiver and a wake-up receiver, wherein the wake-up receiver wakes up the primary transceiver when the wake-up receiver receives a wake-up packet, and the method comprising: receiving, by the wake-up receiver when the primary transceiver of the STA is in a sleep state, the wake-up packet sent by an access point, AP, wherein the wake-up packet comprises basic service set, BSS, parameter indication information, the BSS parameter indication information comprises BSS parameter change indication information indicating whether at least one critical parameter of a BSS to which the STA belongs changes; and waking up, by the wake-up receiver of the STA, the primary transceiver; communicating, by the primary transceiver of the STA, with the AP based on the BSS parameter indication information; wherein the BSS parameter change indication information in the wake-up packet comprises a first change count value, and the first change count value is used to represent a quantity of change times of the at least one critical parameter of the BSS; wherein the communicating, by the primary transceiver of the STA, with the AP based on the BSS parameter indication information comprises: if a second change count value maintained by the STA is different from the first change count value, obtaining, by the primary transceiver of the STA, at least one latest critical parameter of the BSS, and communicating with the AP based on the at least one latest critical parameter; wherein the second change count value is used to represent a quantity of change times of at least one critical parameter of the BSS when the primary transceiver of the STA is in a historical awake state. receiving, by the wake-up receiver when the primary transceiver of the STA is in a sleep state, the wake-up packet sent by an access point, AP, wherein the wake-up packet comprises basic service set, BSS, parameter indication information, the BSS parameter indication information comprises BSS parameter change indication information indicating whether at least one critical parameter of a BSS to which the STA belongs changes; and waking up, by the wake-up receiver of the STA, the primary transceiver; communicating, by the primary transceiver of the STA, with the AP based on the BSS parameter indication information; wherein the BSS parameter change indication information in the wake-up packet comprises a first change count value, and the first change count value is used to represent a quantity of change times of the at least one critical parameter of the BSS; wherein the communicating, by the primary transceiver of the STA, with the AP based on the BSS parameter indication information comprises: if a second change count value maintained by the STA is different from the first change count value, obtaining, by the primary transceiver of the STA, at least one latest critical parameter of the BSS, and communicating with the AP based on the at least one latest critical parameter; wherein the second change count value is used to represent a quantity of change times of at least one critical parameter of the BSS when the primary transceiver of the STA is in a historical awake state. if a second change count value maintained by the STA is different from the first change count value, obtaining, by the primary transceiver of the STA, at least one latest critical parameter of the BSS, and communicating with the AP based on the at least one latest critical parameter; wherein the second change count value is used to represent a quantity of change times of at least one critical parameter of the BSS when the primary transceiver of the STA is in a historical awake state.