Changes between Version 10 and Version 11 of 802.11/MAC/Lower/Retransmissions

Timestamp:

May 5, 2015, 11:21:43 AM (9 years ago)

Author:

chunter

Comment:

--

802.11/MAC/Lower/Retransmissions

@@ -55 +55 @@
   '''''Excerpt A of Section 9.3.3 of 802.11-2012'''''
 
-  ''Every STA shall maintain a STA short retry count (SSRC) , ... which shall take an initial value of 0. The SSRC shall be incremented when any short retry count (SRC) associated with any MPDU of type Data is incremented. ... The CW shall take the next value in the series every time an unsuccessful attempt to transmit an MPDU causes either STA retry counter to increment, until the CW reaches the value of aCWmax.''
+  ''Every STA shall maintain a STA short retry count (SSRC) , ... which shall take an initial value of 0. The SSRC shall be incremented when any short retry count (SRC) ... is incremented. ... The CW shall take the next value in the series every time an unsuccessful attempt to transmit an MPDU causes either STA retry counter to increment, until the CW reaches the value of aCWmax.''
 
   '''''Excerpt B of Section 9.3.3 of 802.11-2012'''''
 
-  ''The CW shall be reset to aCWmin after every successful attempt to transmit a frame containing all or part of an MSDU or MMPDU, ... ''
+  ''The CW shall be reset to aCWmin after every successful attempt to transmit a frame containing all or part of an MSDU or MMPDU, ... .''
 
   '''''Excerpt of Section 9.3.4.4 of 802.11-2012'''''
@@ -73 +73 @@
 [[Image(ex_s_3.png)]]
 }}}
+
+The above examples shows a scenario where the no MPDU transmission ever succeeds.