Method, Apparatus and System for Transmitting Traffic Indication Message

A method for receiving a traffic indication message, comprising:

• receiving, by a first terminal device, a traffic indication message, wherein the traffic indication message comprises a compression method indication information and a compressed delivery traffic indication message that corresponds to at least one terminal device associated with an access point, wherein the compression method indication information indicates a compression method adopted to compress the delivery traffic indication message that corresponds to the at least one terminal device, wherein the delivery traffic indication message indicates, through a delivery traffic indication bit, whether the at least one terminal device has data to receive;
• decompressing, according to the compression method indicated by the compression method indication information in the received traffic indication message, the delivery traffic indication message in the received traffic indication message;
• and
• obtaining the delivery traffic indication bit corresponding to the first terminal device.

An access point, comprising:

• a compressing unit configured to compress a delivery traffic indication message, wherein the delivery traffic indication message indicates whether at least one terminal device associated with the access point has data to receive, wherein the delivery traffic indication message indicates, through a delivery traffic indication bit corresponding to the at least one terminal device, whether the at least one terminal device has data to receive;
• generate a traffic indication message;
• and
• a transmitting unit configured to transmit the traffic indication message, wherein the traffic indication message comprises compression method indication information and the compressed delivery traffic indication message, and wherein the compression method indication information indicates a compression method adopted to compress the delivery traffic indication message.

A terminal device, comprising:

• a receiving unit configured to receive a traffic indication message, wherein the traffic indication message comprises a compression method indication information and a compressed delivery traffic indication message that corresponds to at least one terminal device associated with an access point, wherein the compression method indication information indicates a compression method adopted to compress the delivery traffic indication message that corresponds to the at least one terminal device, wherein the delivery traffic indication message indicates, through a delivery traffic indication bit, whether the at least one terminal device has data to receive;
• and
• a decompressing unit configured to decompress, according to the compression method indicated by the compression method indication information in the received traffic indication message, the delivery traffic indication message in the received traffic indication message;
• and
• obtain the delivery traffic indication bit corresponding to the terminal device.