Encoding method for traffic indication map and beacon frame

摘要

Embodiments of the present disclosure provide an encoding method for a traffic indication map and a beacon frame, which relate to a communication field, enable a user to know whether there are data cached in an access point or enable a user terminal to know whether to access to a channel, and reduce the quantity of bytes occupied by the traffic indication map in the beacon frame. The encoding method for a traffic indication map provided by the embodiments comprises: controlling whether to display a sub-block bitmap display field in a sub-bitmap by marking at least one bit in a bitmap control field, a sub-block sub-bitmap in the sub-bitmap being used for enabling a user terminal to know whether there are data cached in an access point, or enabling the user terminal to know whether to access to a channel.

主权项

1. A method of encoding a traffic indication map, the method comprising:
controlling whether to display or hide a sub-block bitmap display field in a sub-bitmap by marking, in an access point, at least one bit in a traffic indication map, wherein a sub-block sub-bitmap in the sub-bitmap enables a user terminal to know whether there are data cached in the access point, or enables the user terminal to know whether to access to a channel, and the sub-block bitmap display field controls the sub-block sub-bitmap to hide a byte which is zero, wherein the controlling whether to display or hide the sub-block bitmap display field in the sub-bitmap by marking at least one bit in the traffic indication map comprises:
controlling whether to display or hide the sub-block bitmap display field in the sub-bitmap by marking, in the access point, at least one bit in a bitmap control field in the traffic indication map, wherein the controlling whether to display or hide the sub-block bitmap display field in the sub-bitmap by marking at least one bit in a bitmap control field, wherein the sub-block sub-bitmap in the sub-bitmap enables the user terminal to know whether there are data cached in the access point, comprises one of the following:
when a difference between a quantity of user terminals with cached data and a quantity of user terminals without cached data is not larger than a preset first threshold, marking at least one bit in the bitmap control field with a first symbol, and hiding the sub-block bitmap display field in each sub-bitmap, andwhen an absolute value of a difference between a quantity of user terminals with cached data and a quantity of user terminals without cached data is larger than a preset first threshold, marking at least one bit in the bitmap control field with a second symbol, and displaying the sub-block bitmap display field in each sub-bitmap.