Errata

802.11n: A Survival Guide

Errata for 802.11n: A Survival Guide

Submit your own errata for this product.

The errata list is a list of errors and their corrections that were found after the product was released.

The following errata were submitted by our customers and have not yet been approved or disproved by the author or editor. They solely represent the opinion of the customer.

Color Key: Serious technical mistake Minor technical mistake Language or formatting error Typo Question Note Update

Version Location Description Submitted by Date submitted
PDF Page 26
Figure 3-6

If the numbers at the top of each feild specify the length in bit. then the length values are wrong.
It should be corrected from 3-1-1-10-4-3 to 7-1-16-10-8-6.

 Hong Soog Kim  Nov 29, 2013 
PDF Page 26
Missing explanation on some fields in HT Signal Field

There're no explanation on following fields:
- Smoothing
- Reserved (set to 1)
- Number of extension spatial streams

 Hong Soog Kim  Nov 29, 2013 
PDF Page 26
Not Sounding

Correct bit setting are:
Set to 0 indicates that PPDU is a sounding PPDU.
Set to 1 indicates that the PPDU is not a sounding PPDU.

 Sebastian Reluga  Mar 13, 2021 
PDF Page 26
Figure 3-6. HT Signal field

HT-SIG field sizes are wrong on the figure.
MCS size is 7 bits, not 3.
HT Length is 16 bits, not 1.
CRC is 8 bits, not 4.
Tail is 6 bits, not 3.

 Sebastian Reluga  Mar 13, 2021 
PDF Page 42
Figure 5-1

The name of the 3rd subfield, Ack poxy, in QoS Ctl. field should be corrected to 'Ack policy'.

Hong Soog Kim  Dec 02, 2013 
PDF Page 45
2nd paragraoth

In Basic MCS set (16 bytes),

"This string of 127 bits is used to ..."

Sice Basic MCS set field is a kind of bitmap, the above desrcription should be corrected to

"This bitmap of 127 bits is used to ..."

 Hong Soog Kim  Dec 03, 2013 
PDF Page 51
Figure 5-8

The length of Starting Sequence Number subfield in figure 5-8 should be 12 instead of 4.

 Hong Soog Kim  Dec 04, 2013 
PDF Page 51, 52
Figure 5-8 and Figure 5-9

The length of reserved subfield of BAR Control field in Figure 5-8 and 5-9 soudl be 9 instead of 14.

 Hong Soog Kim  Dec 04, 2013 
PDF Page 52
Figure 5-9

The unit of 'Starting Sequence Number' and 'Bitmap' subfields should be bytes.
The length of 'BA info' field should be corrected to 10 bytes.

 Hong Soog Kim  Dec 04, 2013