Device access method, access point and access device

A device access method, wherein the method comprises:

• receiving, by a first access device, a broadcast frame sent by an access point, wherein the broadcast frame comprises a feature identifier of an access device paged by the access point and includes a length (L) of a contention service period;
• determining, by the first access device according to its own feature identifier and the feature identifier of the access device in the broadcast frame, whether the first access device is the access device paged by the access point;
• and
• accessing, by the first access device, the access point within the contention service period when a determining result is yes;
• wherein the length (L) of the contention service period is linearly proportional to a product of a timeslot (tslot) for the access device to connect through a contention and a value (N) of a greatest number of backoff windows;
• wherein the accessing, by the first access device, the access point comprises accessing, by the access device through contention, the access point within the contention service period;
• wherein a maximum time duration of the backoff windows equals N*tslot where the value N equals −1 and the length (L) of the contention service period equals b*N*tslot;
• wherein n denotes a quantity of access devices that are paged by the access point and comprised in the broadcast frame;
• a is a constant greater than 1;
• b is a constant greater than 1;
• and denotes rounding down.

An access point, wherein the access point comprises a processor and a non-transitory processor-readable medium having processor-executable instructions stored thereon, the processor-executable instructions including a plurality of units, the units including:

• a frame generating unit, configured to generate a broadcast frame, wherein the broadcast frame comprises a feature identifier of an access device paged by the access point and includes a length (L) of a contention service period, and
• a frame broadcasting unit, configured to send the broadcast fame to the access device, to enable the access device in the broadcast frame to access the access point within the contention service period;
• wherein the length (L) of the contention service period is linearly proportional to a product of a timeslot (tslot) for the access device to connect through a contention and a value (N) of a greatest number of backoff windows;
• wherein the broadcast frame further comprises information about a contention service period, to enable the access device that receives the broadcast frame and corresponds to a unique equipment identifier in the broadcast frame to access the access point through contention in the contention service period;
• wherein a maximum time duration of the backoff windows equals N*tslot where the value N equals −1 and the length (L) of the contention service period equals b*N*tslot;
• wherein n denotes a quantity of access devices that are paged by the access point and comprised in the broadcast frame;
• a is a constant greater than 1;
• b is a constant greater than 1;
• and denotes rounding down.

An access device, wherein the access device comprises a processor and a non-transitory processor-readable medium having processor-executable instructions stored thereon, the processor-executable instructions including a plurality of units, the units including:

• a frame receiving unit, configured to receive a broadcast frame sent by an access point, wherein the broadcast frame comprises a feature identifier of an access device paged by the access point and includes a length (L) of a contention service period;
• a determining unit, configured to determine, according to its own feature identifier and the feature identifier of the access device in the broadcast frame, whether the access device is the device paged by the access point;
• and
• an access unit, configured to access the access point within the contention service period when a determining result is yes;
• wherein the length (L) of the contention service period is linearly proportional to a product of a timeslot (tslot) for the access device to connect through a contention and a value (N) of a greatest number of backoff windows;
• wherein the access unit is further configured to access the access point through contention in the contention service period;
• wherein a maximum time duration of the backoff windows equals N*tslot where the value N equals −1 and the length (L) of the contention service period equals b*N*tslot;
• wherein n denotes a quantity of access devices that are paged by the access point and comprised in the broadcast frame;
• a is a constant greater than 1;
• b is a constant greater than 1;
• and denotes rounding down.