Wireless communication apparatus

Abstract

A wireless communication apparatus includes a transmitter that transmits a first frame and a second frame with multiplexing and a receiver that receives a third frame sent in response to the first frame and a forth frame sent in response to the second frame, wherein a first receipt completion timing at which the third frame is fully received by the receiver and a second receipt completion timing at which the forth frame is fully received by the receiver are synchronized by controlling at least one of first content of the first frame, a first transmission method by which the first frame is sent, second content of the second frame and a second transmission method by which the second frame is sent.

What is claimed is: 
     
         1 . A wireless apparatus comprising:
 a receiver configured to receive a first frame among a plurality of frames including the first frame and a second frame that is to be transmitted by multiplexing from a wireless communication apparatus,   a transmitter configured to transmit a third frame,   wherein a length of the third frame varies according to at least first content of the first frame,   a temporal difference between a first time at which the third frame is fully received by the wireless communication apparatus and a second time at which a fourth frame sent in response to the second frame is fully received by the wireless communication apparatus is less than a predetermined time length.   
     
     
         2 . The apparatus of  claim 1 , wherein the at least first content of the first frame is information for setting a transmission rate of the third frame. 
     
     
         3 . The apparatus of  claim 1 , wherein the at least first content of the first frame is information for setting a frame type of the third frame. 
     
     
         4 . The apparatus of  claim 1 , wherein the at least first content of the first frame is Ack policy for the third frame. 
     
     
         5 . The apparatus of  claim 1 , wherein the at least first content of the first frame is information for setting a number of TIDs of the third frame. 
     
     
         6 . The apparatus of  claim 1 , wherein the at least first content of the first frame is information included in a header of the first frame. 
     
     
         7 . The apparatus of  claim 1 , wherein the temporal difference is zero. 
     
     
         8 . The apparatus of  claim 1 , further comprising:
 at least one antenna for transmitting a radio wave.   
     
     
         9 . A wireless apparatus comprising:
 a receiver configured to receive a first frame among a plurality of frames including the first frame and a second frame that is to be transmitted by multiplexing from a wireless communication apparatus,   a transmitter configured to transmit a third frame,   wherein the receiver is configured to receive notification information from the wireless communication apparatus,   a length of the third frame varies according to the notification information,   a temporal difference between a first time at which the third frame is fully received by the wireless communication apparatus and a second time at which a fourth frame sent in response to the second frame is fully received by the wireless communication apparatus is less than a predetermined time length.   
     
     
         10 . The apparatus of  claim 9 , wherein the notification information is information for setting a transmission rate of the third frame. 
     
     
         11 . The apparatus of  claim 9 , wherein the temporal difference is zero. 
     
     
         12 . The apparatus of  claim 9 , further comprising:
 at least one antenna for transmitting a radio wave.   
     
     
         13 . A wireless apparatus comprising:
 a receiver configured to receive, from a wireless communication apparatus, a first frame including first information for the wireless apparatus and second information for another wireless apparatus,   a transmitter configured to transmit a second frame to the wireless communication apparatus,   wherein a length of the second frame varies according to at least the first information,   a third frame is transmitted to the wireless communication apparatus from the another wireless apparatus, and   a temporal difference between a first receipt completion time at which the second frame is fully received by the wireless communication apparatus and a second receipt completion time at which the third frame is fully received by the wireless communication apparatus is less than a predetermined time length.   
     
     
         14 . The apparatus of  claim 13 , wherein the first information is information for setting a transmission rate of the third frame. 
     
     
         15 . The apparatus of  claim 13 , wherein the temporal difference is zero. 
     
     
         16 . The apparatus of  claim 13 , further comprising:
 at least one antenna for transmitting a radio wave.   
     
     
         17 . A wireless method comprising:
 receiving a first frame among a plurality of frames including the first frame and a second frame that is to be transmitted by multiplexing from a wireless communication apparatus,   transmitting a third frame,   wherein a length of the third frame varies according to at least first content of the first frame,   a temporal difference between a first time at which the third frame is fully received by the wireless communication apparatus and a second time at which a fourth frame sent in response to the second frame is fully received by the wireless communication apparatus is less than a predetermined time length.   
     
     
         18 . The method of  claim 17 , wherein the at least first content of the first frame is information for setting transmission rate of the third frame. 
     
     
         19 . The method of  claim 17 , wherein the temporal difference is zero. 
     
     
         20 . The method of  claim 17 , wherein the at least first content of the first frame is information included in a header of the first frame.