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stds-802-16: SUB11 COMMENTS

To: "'stds-802-16@ieee.org'" <stds-802-16@ieee.org>
Subject: stds-802-16: SUB11 COMMENTS
From: "Kostas, Demos" <dkostas@adaptivebroadband.com>
Date: Sun, 23 Apr 2000 07:58:11 -0700
Cc: "Kostas, Demos" <dkostas@adaptivebroadband.com>
Sender: owner-stds-802-16@ieee.org



[Submitter's Last Name] 
Kostas
[Submitter's First Name]
Demosthenes 
[Starting Page #]
1
[Starting Line #]
4 
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.]
T 
[Detailed Description of Proposed Insertion, Deletion, Change]
The BWA system is intended to support a wide-range of transport capabilities
(e.g., frame relay, ATM, IP, and Ethernet 802.11) that in turn can support a
wide-range of services (e.g., telephone, data, and video)
[Reason for Edit] 
To explicitly state the reason for this BWA
[Submitter's Last Name] 
Kostas
[Submitter's First Name]
Demosthenes 
[Starting Page #]
1
[Starting Line #]
5
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.]
E
[Detailed Description of Proposed Insertion, Deletion, Change]
Deletion of sentence starting at end of this line
[Reason for Edit] 
Sentence is redundant with second Paragraph.

[Submitter's Last Name] 
Kostas
[Submitter's First Name]
Demosthenes 
[Starting Page #]
1
[Starting Line #]
17
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.]
T
[Detailed Description of Proposed Insertion, Deletion, Change]
Change second sentence on this line to read "These functional requirements, 
with possible future amendments, are to be used to identify the constrains 
in the development of the 802.16.3 air interface standard.  Such terms as 
SHALL, MUST and SHOULD as used herein are to indicate the relative 
importance of a requirement."
[Reason for Edit] 
Third Paragraph Second Sentence is not consistent with the Second
Paragraph.  Second Paragraph states that this document provides "guidelines"
and the third Paragraph states that "The requirements with future
amendments, are binding"... the air interface standard MUST comply... with
the functional requirements".
[Submitter's Last Name] 
Kostas
[Submitter's First Name]
Demosthenes 
[Starting Page #]
1
[Starting Line #]
46 
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.]
T 
[Detailed Description of Proposed Insertion, Deletion, Change]
Change sentence to read, "So, "Functional Requirements" describes the 
802.16.3 MAC and PHY Layer functions and system parameters that need be 
specified so that the BWA system can support a wide-range of transport 
capabilities (e.g., Frame Relay, ATM, and Ethernet 802.11), that in turn 
can support a wide-range of Services (e.g., telephone, data, and video) 
[Reason for Edit] 
To explicitly state the reason for this BWA
[Submitter's Last Name] 
Kostas
[Submitter's First Name]
Demosthenes 
[Starting Page #]
2
[Starting Line #]
17 
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.]
T 
[Detailed Description of Proposed Insertion, Deletion, Change]
Change sentence to read "The 802.16.3 air interface interoperability 
SHALL interwork with existing local, metropolitan, and wide 
area network standards." 
[Reason for Edit] 
To more explicitly state the reason for this Air interface interworking
capabilities. 
In a requirements document the emphasis of being part of a family of
standards is misleading.  
[Submitter's Last Name] 
Kostas
[Submitter's First Name]
Demosthenes 
[Starting Page #]
2
[Starting Line #]
18 
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.]
E 
[Detailed Description of Proposed Insertion, Deletion, Change]
As an example, Figure 1 shows how the 802.16.3 PHY and MAC layers relate to
some other 802 standards.
[Reason for Edit] 
To Clarify that this is only and example: i.e., the 802.16.3  PHY and MAC
will relate to others.  
[Submitter's Last Name] 
Kostas
[Submitter's First Name]
Demosthenes 
[Starting Page #]
1
[Starting Line #]
4 
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.]
T 
[Detailed Description of Proposed Insertion, Deletion, Change]
The BWA system is intended to support a wide-range of transport capabilities
(e.g., frame relay, ATM, IP, and Ethernet 802.11) that in turn can support a
wide-range of services (e.g., telephone, data, and video)
[Reason for Edit] 
To explicitly state the reason for this BWA
[Submitter's Last Name] 
Kostas
[Submitter's First Name]
Demosthenes 
[Starting Page #]
2
[Starting Line #]
22 
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.]
E 
[Detailed Description of Proposed Insertion, Deletion, Change]
Change title of Figure 1 to
Figure 1: Relationship between 802.16.3 and other 802 Protocol Standards(...
[Reason for Edit] 
To avoid misunderstanding of the phrase "other Protocol Standards" 
[Submitter's Last Name] 
Kostas
[Submitter's First Name]
Demosthenes 
[Starting Page #]
2
[Starting Line #]
24 
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.]
T 
[Detailed Description of Proposed Insertion, Deletion, Change]
Insert a Figure 0.  That depicts the how the 802.16.3 MAC and PHY Layers
relate
to the supported upper layer protocols (e.g., Frame Relay, ATM, 802.11);
i.e., 802.16.3 Protocol Reference Model

[Reason for Edit] 
To explicitly depict the more general application of the PHY and MAC being
developed and not just the family.
[Submitter's Last Name] 
Kostas
[Submitter's First Name]
Demosthenes 
[Starting Page #]
3
[Starting Line #]
36 
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.]
T 
[Detailed Description of Proposed Insertion, Deletion, Change]
Insert a bullet "Point-to-Point ATM access" 
[Reason for Edit] 
To include an important broadband access alternative
[Submitter's Last Name] 
Kostas
[Submitter's First Name]
Demosthenes 
[Starting Page #]
5
[Starting Line #]
22 
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.]
E  
[Detailed Description of Proposed Insertion, Deletion, Change]
The ending of second sentence should read, 
"... envisaged, but the 802.16.3 protocols focus on the Air Interface shown
in the simplified model of Figure 2.2."
[Reason for Edit] 
Clarify
[Submitter's Last Name] 
Kostas
[Submitter's First Name]
Demosthenes 
[Starting Page #]
5
[Starting Line #]
23
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.]
E
[Detailed Description of Proposed Insertion, Deletion, Change]
Replace sentence starting  on this line, and the sentence following with 
"Also shown in Figure 2.2 are typical
configurations of the Base Station (BS) and the Subscriber Station (SS),
that include the functions of "Indoor Units"(IU) and "Outdoor Units" (OU).
However, the physical separation and protocols between OU and IU are beyond
the scope of this document."
[Reason for Edit] 
Makes meaning clearer
[Submitter's Last Name] 
Kostas
[Submitter's First Name]
Demosthenes 
[Starting Page #]
5
[Starting Line #]
26 
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.]
E 
[Detailed Description of Proposed Insertion, Deletion, Change]
Change the sentence starting in the middle of this line and the sentence 
that follows with,

"An additional function to this System Reference Model that should be
considered is Security.  The BS Network Interface (BNI) and the SS Network
Interface (SNI) are also shown." 
[Reason for Edit] 
Facilitate reading
[Submitter's Last Name] 
Kostas
[Submitter's First Name]
Demosthenes 
[Starting Page #]
6
[Starting Line #]
4 
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.]
E 
[Detailed Description of Proposed Insertion, Deletion, Change]
Delete
"which are sometimes called interworking functions(IWFs),
[Reason for Edit] 
Incorrect phrase. Interfaces are no interworking functions.
[Submitter's Last Name] 
Kostas
[Submitter's First Name]
Demosthenes 
[Starting Page #]
6
[Starting Line #]
22 
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.]
E 
[Detailed Description of Proposed Insertion, Deletion, Change]
Change sentence to read, 
"The Subscriber Stations may identify the bandwidth needed to achieve the 
required QoS (see section) , but the BS has the "smarts" to allocate
bandwidth."
[Reason for Edit] 
Improve English
[Submitter's Last Name] 
Kostas
[Submitter's First Name]
Demosthenes 
[Starting Page #]
6
[Starting Line #]
26
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.]
E 
[Detailed Description of Proposed Insertion, Deletion, Change]
Replace the paragraph starting on this line with

In the downstream direction, within a channel, the network topology is 
similar to a contentionless broadcast bus, since the transmissions are 
transmitted by the base station, and more than one Subscribe Station 
can share a downstream channel. In the upstream direction the topology 
is similar to a contention-oriented bus, and thus 802.16.3 protocols 
MUST provide the means to multiplex traffic from multiple SS, resolve 
contention, and allocate bandwidth in the upstream direction.
[Reason for Edit] 
To simplify reading
[Submitter's Last Name] 
Kostas
[Submitter's First Name]
Demosthenes 
[Starting Page #]
6
[Starting Line #]
34 
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.]
E
[Detailed Description of Proposed Insertion, Deletion, Change]
Change paragraph under Section 3 to read,
This section describes some services that an 802.16.3 system SHOULD support.
In what follows both the target markets and their associated bearer services
are described.
[Reason for Edit] 
To streamline the meaning.  Original paragraph found confusing
[Submitter's Last Name] 
Kostas
[Submitter's First Name]
Demosthenes 
[Starting Page #]
7
[Starting Line #]
5 
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.]
E
[Detailed Description of Proposed Insertion, Deletion, Change]
Replace this paragraph with
"This Section describes typical services supported by an 802.16.3 system.
In this document services refer to the services provided by the MAC layer to
the layer above it.  The term services is also used in this document as an
adjective to qualify the type of networks that interface with 802.16.3-based
BWA networks(12)(54)."
[Reason for Edit] 
To streamline the meaning.  Original paragraph found confusing
[Submitter's Last Name] 
Kostas
[Submitter's First Name]
Demosthenes 
[Starting Page #]
7
[Starting Line #]
11 
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.]
E 
[Detailed Description of Proposed Insertion, Deletion, Change]
Delete sentence starting on this line
[Reason for Edit] 
Not clear of its meaning
[Submitter's Last Name] 
Kostas
[Submitter's First Name]
Demosthenes 
[Starting Page #]
7
[Starting Line #]
18 
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.]
E 
[Detailed Description of Proposed Insertion, Deletion, Change]
Delete lines 18 through 24
[Reason for Edit] 
Unnecessary and confusing verbiage
[Submitter's Last Name] 
Kostas
[Submitter's First Name]
Demosthenes 
[Starting Page #]
7
[Starting Line #]
34 
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.]
T 
[Detailed Description of Proposed Insertion, Deletion, Change]
-second bullet, should be modified to read,

"Delay - as apparent to the end user, the amount of delay and delay
variation
MUST be kept within acceptable limits.  Again the specific amount of delay
and delay variation acceptable is based on the QoS sold to the end user." 
[Reason for Edit] 
To include delay variation and improve English
[Submitter's Last Name] 
Kostas
[Submitter's First Name]
Demosthenes 
[Starting Page #]
8
[Starting Line #]
9 
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.]
T 
[Detailed Description of Proposed Insertion, Deletion, Change]
Insert before this line Section
"3.1.1.1.1.1 ATM Protocol Services

The 802.16.3 system MUST transport constant bit rate(CBR), non-real-time
variable-bit-rate(non-rt VBR), real-time variable-bit-rate(rt VBR) and ABR
ATM services."
[Reason for Edit] 
Important MAN based services
[Submitter's Last Name] 
Kostas
[Submitter's First Name]
Demosthenes 
[Starting Page #]
8
[Starting Line #]
13
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.]
T 
[Detailed Description of Proposed Insertion, Deletion, Change]
Delete this sentence
[Reason for Edit] 
No basis given for prejudging now other services' requirements
[Submitter's Last Name] 
Kostas
[Submitter's First Name]
Demosthenes 
[Starting Page #]
8
[Starting Line #]
16 
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.]
T 
[Detailed Description of Proposed Insertion, Deletion, Change]
Delete lines 17 through 33 of this Section  
[Reason for Edit] 
This is informational text on a specific user or the 802.16.3. PHY and MAC
and thus does not belong in this requirements document  
[Submitter's Last Name] 
Kostas
[Submitter's First Name]
Demosthenes 
[Starting Page #]
10
[Starting Line #]
6 
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.]
T 
[Detailed Description of Proposed Insertion, Deletion, Change]
sentence beginning on this line should read,

"Note that the function of the MAC layer can include error correction by
retransmission, or Automatic Repeat Request(ARQ)." 
[Reason for Edit] 
In the below 11GHz bands ARQ should be a MAC requirement as it very
effectively meets the 
needs of many applications. 
[Submitter's Last Name] 
Kostas
[Submitter's First Name]
Demosthenes 
[Starting Page #]
10
[Starting Line #]
7 
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.]
T 
[Detailed Description of Proposed Insertion, Deletion, Change]
Delete sentence starting on this line 
[Reason for Edit] 
MAC needs to support ARQ
[Submitter's Last Name] 
Kostas
[Submitter's First Name]
Demosthenes 
[Starting Page #]
10
[Starting Line #]
18 
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.]
E 
[Detailed Description of Proposed Insertion, Deletion, Change]
Sentence should read
"Specifying protocols that can maintain a specified/mandatory performance
levels in the face of rapidly changing channel characteristics(e.g., due to
multipath) is a problem that the 802.16.3 work group has to consider."
[Reason for Edit] 
Clarification 
[Submitter's Last Name] 
Kostas
[Submitter's First Name]
Demosthenes 
[Starting Page #]
10
[Starting Line #]
28 
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.]
E 
[Detailed Description of Proposed Insertion, Deletion, Change]
Change sentence to read 

"The 802.16.3 protocols SHOULD allow  for increases in capacity and
performance."
[Reason for Edit] 
Clarification
[Submitter's Last Name] 
Kostas
[Submitter's First Name]
Demosthenes 
[Starting Page #]
14
[Starting Line #]
20 
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.]
T
[Detailed Description of Proposed Insertion, Deletion, Change]
Change Sentence to read
"The 802.16.3 protocols SHALL define a set of parameters to meet the
required
QoS parameters for the supported services (e.g., ATM CBR Services and IP) "
[Reason for Edit] 
To  include the support of additional services
[Submitter's Last Name] 
Kostas
[Submitter's First Name]
Demosthenes 
[Starting Page #]
14
[Starting Line #]
32 
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.]
T 
[Detailed Description of Proposed Insertion, Deletion, Change]
The last sentence parenthesis should read 
( such as those required for IP- and ATM-based services)
[Reason for Edit] 
To include the support of additional services to IP
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