Data frame sending method and apparatus, and data frame receiving method and apparatus

A data frame receiving method, comprising:

• measuring, by a station, a first interference power parameter, wherein the first interference power parameter indicates, such that communication between a first access point and the station is not affected, one of a transmission power or a transmission power reduction value of a second access point, wherein the first access point is an associated access point of the station, and wherein a coverage area of the first access point overlaps a coverage area of the second access point;
• feeding back, by the station, the first interference power parameter to the first access point, so that, when the first access point determines that a channel on which the first access point works is currently being occupied by the second access point, the first access point determines, according to the first interference power parameter, further according to a second interference power parameter that is sent by the second access point and further according to a transmission power of the second access point that is currently occupying the channel, that the station is a to-be-scheduled station of the first access point, and a transmission power of the first access point for the station, wherein the second interference power parameter indicates, such that communication between the second access point and an associated station of the second access point is not affected, one of a transmission power or a transmission power reduction value of the first access point;
• sending, by the station, after the station receives scheduling indication signaling that is sent by the first access point at the determined transmission power, and in response to determining that the station is schedulable by the first access point, scheduling indication response signaling to the first access point;
• and
• receiving, by the station, a data frame that is sent by the first access point at the determined transmission power.

A data frame sending apparatus, wherein the data frame sending apparatus is configured to be disposed in a first access point, the data frame sending apparatus comprising:

• a receiving module, configured to receive first interference power parameters fed back by associated stations of the first access point, and further configured to receive second interference power parameters sent by a second access point, wherein the second interference power parameters are fed back by associated stations of the second access point to the second access point, wherein a coverage area of the first access point overlaps a coverage area of the second access point, wherein the first interference power parameter indicates, such that communication between the first access point and the associated station of the first access point is not affected, one of a transmission power or a transmission power reduction value of the second access point, and wherein the second interference power parameter indicates, such that communication between the second access point and the associated station of the second access point is not affected, one of a transmission power or a transmission power reduction value of the first access point;
• a sending module;
• a processor connected to the receiving module and to the sending module;
• a non-transitory computer readable medium connected to the processor and having stored thereon instructions, that when executed by the processor, cause the processor to:
• determine that a channel on which the first access point works is currently being occupied by the second access point;
• and
• determine to-be-scheduled stations of the first access point and transmission powers of the first access point for the to-be-scheduled stations according to the first interference power parameters, the second interference power parameters, and a transmission power of the second access point that is currently occupying the channel;
• and
• wherein the sending module is configured to send scheduling indication signaling to the to-be-scheduled stations at the determined transmission powers determined by the determining module, and after the receiving module receives scheduling indication response signaling sent by a schedulable station among the to-be-scheduled stations, send a data frame to the schedulable station at a transmission power corresponding to the schedulable station among the determined transmission powers, and
• wherein the receiving module is further configured to receive, after the sending module sends the scheduling indication signaling, the scheduling indication response signaling sent by the schedulable station among the to-be-scheduled stations.

A data frame receiving apparatus, wherein the data frame receiving apparatus is configured to be disposed in a station, the data frame receiving apparatus comprising a computer including a non-transitory computer readable medium storing program modules executable by the computer, the modules including:

• a measuring module, configured to measure a first interference power parameter, wherein the first interference power parameter is used to indicate a transmission power or a transmission power reduction value of a second access point under a condition that communication between a first access point and the station is not affected, wherein the first access point is an associated access point of the station, and a coverage area of the first access point overlaps a coverage area of the second access point;
• a sending module, configured to feed back the first interference power parameter measured by the measuring module to the first access point, so that when the first access point determines that a channel on which the first access point works is currently being occupied by the second access point, the first access point determines, according to the first interference power parameter, a second interference power parameter that is sent by the second access point and a transmission power of the second access point that is currently occupying the channel, that the station is a to-be-scheduled station of the first access point, and a transmission power of the first access point for the station, wherein the second interference power parameter is used to indicate a transmission power or a transmission power reduction value of the first access point under a condition that communication between the second access point and an associated station of the second access point is not affected;
• a receiving module, configured to receive scheduling indication signaling that is sent by the first access point at the determined transmission power;
• and
• a determining module, configured to:
• after the receiving module receives the scheduling indication signaling, determine that the station is schedulable by the first access point,
• wherein the sending module is further configured to, after the determining module determines that the station is schedulable by the first access point, send scheduling indication response signaling to the first access point;
• and
• the receiving module is further configured to:
• after the sending module sends the scheduling indication response signaling, receive a data frame that is sent by the first access point at the determined transmission power.