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comment 2: in line 8, add definition after "PAR": "(IEEE SA Project Authorization Request)"
comment 3: in line 4, change "subscriber station" to "mobile station"
comment 4: in line 5-6, change "IP services" to "IP packets"
comment 5: add the following text: "Unresolved issues are included in Appendix B, pending a later decision by the IEEE 802.20 working group."
2. Section 1.2 -
Purpose
-----------------------------------
comment 1: in line 11, change " will establish" to "establishes"
3. Section 2 - Overview of Services
and Applications
--------------------------------------------------------------------------
comment 1: apply a global change in the entire document (except informative appendices) -- replace "should" with "shall"
comment 2: in line 8, change "provide for" to "support"
comment 3: in line 9, define or strike out "significantly"
comment 4: in line 11, change "improved" to "best-in-class"
comment 5: in pg 7, lines 3 and 10, delete the bullet symbol.
comment 6: pg 7 line 3
needs rephrasing. Suggested text: "The AI shall support interoperability between IP
core-networks and IP-enabled
mobile-terminals. Mobile applications
shall conform to open standards and protocols."
4. Section 2.1 - Voice Services
---------------------------------------------
comment 1: in line 6, change "at very minimal cost to provide" to "at minimal operating cost"
comment 2: in
lines 16, 17, change "It
is expected that MBWA will need to make some accommodation to provide voice
services as an integral
part of any service offering."
to: "The IEEE 802.20 standard shall support IP-packet-based voice services
at optimized QoS."
comment 3: lines
18-21, the current text is: "The MBWA
system should accommodate VOIP services by providing QOS that
provides
latency, jitter, and packet loss characteristics that enable the use
of industry standard Codecs. When the required QOS cannot be reserved
the system will
provide signaling to support call blocking. The MAC should provide call blocking for supported
formats."
Suggested new text (assuming the previous comment 3 is acceptable): "This includes minimized latency, jitter and packet loss and the utilization of standard wireline and wireless voice codecs. The AI shall support call blocking and associated signaling, consistent with existing related standards."
5. Section 3 - System
Architecture
-----------------------------------------------------
comment 1: Global change: change "will" and "must" to "shall"
comment 2: pg 7, line 24, change "ubiquitous" to "metropolitan"
comment 3: pg 7, line 25, change "in a cellular architecture" to "in cellular-like cell architecture"
comment 4: pg 7, lines 25-28. I suggest we delete these sentences. The phrase "cellular-like" in the previous (modified) sentence covers the intent of these sentences.
comment 5: pg 7, line 32 and lines 33-36. Starting with the words - "System Context Diagram" - The paragraph does not flow with rest of the text and is not clear in content and purpose. I suggest that we delete these lines.
comment 6: pg 8, lines 2-4. Suggest that these lines be deleted, or moved to a footnote.
comment 7: pg 8, line 7. The reference model applies to both base station and mobile station. Therefore, suggest we delete the words "...a mobile station's method of..."
comment 8: pg 9, title of figure 1. Change "Reference partitioning" to "Layers 1 and 2, Functional Partitioning"
6. Section 3.2 - Definition of Interfaces
-------------------------------------------------------
comment 1: General - if this is the extent of the text, suggest the heading of section 3.2 be changed to "Open Interfaces" and in line 8, delete "Open interfaces:"
comment 2: The requirement for open interfaces applies to both base station and mobile station. Therefore, the following new text is suggested to replaces the current section 3.2:
line 7 -- "3.2 Open Interfaces"
lines 8-10 -- "The 802.20 Layer 1 and Layer 2 standard shall provide an open interface to upper layer standard protocols, consistent with IP-based architectures supporting real-time multimedia and streaming applications."
7. Section 4.1 - System Aggregate Data
Rates
-------------------------------------------------------------------
comment 1: pg 10, line 8. Add the missing index "1." at the beginning of the line. Fix the rest of the text so as to move indices of footnotes 2 and 3 to new lines.
8. Section 4.2 - Spectral Efficiency (bps/Hz/sector)
-----------------------------------------------------------------------------
comment 1: Need to
streamline the use the terms "network", "cell" and "sector" for the
sake of consistency. Thus, change the heading to "Spectral Efficiency (bps/Hz/cell) and:
1)
pg 10, line 24 is: "Sustained spectral efficiency
shall be in excess of 1 b/s/Hz/cell in a loaded network."
change to:
"Sustained spectral efficiency shall be in
excess of 1 b/s/Hz/cell in a loaded cell."
2) pg 10, line 25-26 is: "It is defined as the ratio of the expected aggregate throughput (bits/sec) to all users in an interior cell divided by the system bandwidth."
change to: "It is defined as the ratio of the expected aggregate throughput for all users in a cell (in bit/sec) to the total RF bandwidth (in Hz) of the air-channels deployed in the cell"
3) pg 11, line 1: change "network" to "cell"
comment 3: pg 11, lines 9-11. Define "Good Put" .
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Dan Gal
Lucent Technologies
O
Mobility Solutions
Wireless Standards Development
email:
dgal@lucent.com
phone: +1
973-428-7734