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stds-802-16: SYSREQ COMMENT
[Notice: It is the policy of 802.16 to treat messages posted here as non-confidential.]
[Notice: It is the policy of 802.16 to treat messages posted here as
non-confidential.]
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
i
[Starting Line #]
5 of "Purpose"
[(T)echnical / (E)ditorial]
E
[Detailed Description]
Replace "quideline" with "guideline"
[Reason for Edit]
Misspell
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
4
[Starting Line #]
6
[(T)echnical / (E)ditorial]
E
[Detailed Description]
Replace "etc." with "etc.."
[Reason for Edit]
A period is required at the end of sentence.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
4
[Starting Line #]
8
[(T)echnical / (E)ditorial]
E
[Detailed Description]
Insert space between sentence.
[Reason for Edit]
Two spaces are required between sentences.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
4
[Starting Line #]
21
[(T)echnical / (E)ditorial]
E
[Detailed Description]
Insert:
Figure 2-1 Summary of 802.16 "Example" Applications
and Services
[Reason for Edit]
Better description for the figure.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
5
[Starting Line #]
line 2 of Figure 2-3
[(T)echnical / (E)ditorial]
E
[Detailed Description]
Change "righgs" with "rings"
[Reason for Edit]
misspell
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
5
[Starting Line #]
line 2 of Figure 2-3
[(T)echnical / (E)ditorial]
E
[Detailed Description]
Change "INter" with "Inter"
[Reason for Edit]
misspell
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
5
[Starting Line #]
line 2 of Figure 2-3
[(T)echnical / (E)ditorial]
E
[Detailed Description]
delete "Today"
[Reason for Edit]
"Today" is not objective time scale.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
5
[Starting Line #]
line 8 of Figure 2-3
[(T)echnical / (E)ditorial]
T
[Detailed Description]
change "Overcome" with "have"
[Reason for Edit]
LOS is required in upper microwave band.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
5
[Starting Line #]
line 10 of Figure 2-3
[(T)echnical / (E)ditorial]
E
[Detailed Description]
delete (!)
[Reason for Edit]
Does not contain any meaningful message.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
5
[Starting Line #]
19
[(T)echnical / (E)ditorial]
T
[Detailed Description]
Insert:
"In today's network," the streams flow...
[Reason for Edit]
The sentence preclude the case that subscribers originate
the multicast "request".
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
5
[Starting Line #]
22
[(T)echnical / (E)ditorial]
T
[Detailed Description]
Insert:
"Future Digital Audio/Video Multicast system will allow
individual subscribers to broadcast for other member of
the network."
[Reason for Edit]
We should not preclude some possible functionaries of
the future Digital Audio/Video Multicast system.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
6
[Starting Line #]
16
[(T)echnical / (E)ditorial]
T
[Detailed Description]
Insert:
"However, recent advance in high speed switching
may allow us dynamically allocated voice trunks, which
can be used for future 802.16 systems." Another.......
[Reason for Edit]
Trunks can also be dynamically allocated (e.g.,TR303).
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
6
[Starting Line #]
41
[(T)echnical / (E)ditorial ]
E
[Detailed Description]
change "Gain" with "Again"
[Reason for Edit]
misspell
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
7
[Starting Line #]
13
[(T)echnical / (E)ditorial]
T
[Detailed Description]
delete:
"For asynchronous timing, the timing on the circuits at the
output of the access network SHALL be +/- 150 ppm for DS
(ANSI T1.403-1995) and +/- 50 ppm for E1 (ITU-T G.703). Note
that the DS1 spec is relaxed for older equipment: newer
equipment can meet the more stringent +/- 32 ppm spec. In
either case, DS1 carried over the access network SHALL have
jitter and wander characteristics as specified in ITU-T G.823
and E1s as specified in G.824.1"
[Reason for Edit]
Spec may be somewhat related in old legacy
systems. Note that DS1 spec is old.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
7
[Starting Line #]
20
[(T)echnical / (E)ditorial]
E
[Detailed Description]
delete:
"What do these properties mean to BWA system requirement?"
[Reason for Edit]
Does not convey any information.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
7
[Starting Line #]
34
[(T)echnical / (E)ditorial]
T
[Detailed Description]
change "SHOULD" with "MUST"
[Reason for Edit]
It is a mandatory requirement for 802.16 system.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
7
[Starting Line #]
38
[(T)echnical / (E)ditorial]
E
[Detailed Description]
delete:
"Of high speed, connection-oriented services, ATM
is the dominant technology."
[Reason for Edit]
The sentence is not required.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
7
[Starting Line #]
39
[(T)echnical / (E)ditorial]
E
[Detailed Description]
delete "small"
[Reason for Edit]
Not required.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
7
[Starting Line #]
39
[(T)echnical / (E)ditorial]
T
[Detailed Description]
change "routed" with "switched"
[Reason for Edit]
More accurate expression.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
8
[Starting Line #]
14
[(T)echnical / (E)ditorial]
T
[Detailed Description]
change "MUST" to "SHOULD"
[Reason for Edit]
To consider the legacy of PMP systems.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
8
[Starting Line #]
15
[(T)echnical / (E)ditorial]
T
[Detailed Description]
Change "supported" with "transported"
[Reason for Edit]
To make the meaning of the sentence more clear.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
8
[Starting Line #]
36
[(T)echnical / (E)ditorial]
T
[Detailed Description]
change "SHALL" with "SHOULD"
[Reason for Edit]
802.16 system is an access network not a LAN.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
8
[Starting Line #]
41
[(T)echnical / (E)ditorial]
T
[Detailed Description]
replace:
"These services do not place any special requirements on
802.16 systems (MAC and PHY protocols) not already covered
in the above sections."
with
"Some services do not place any special requirements on
802.16 systems. Some services do place special
requirements on 802.16 systems, which were not already covered
in the above sentence, for example, Frame Relay service
impose special requirement."
[Reason for Edit]
Frame Relay services needs special requirements in term
of QoS translation.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
9
[Starting Line #]
30
[(T)echnical / (E)ditorial]
T
[Detailed Description]
change "10 GHz to 66 GHz" with "2.4 GHz to 66 GHz"
[Reason for Edit]
2.4 GHz range was used to be PMP frequency. Besides,
FCC changed to 2.4 GHz as bi-direction services.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
9
[Starting Line #]
38
[(T)echnical / (E)ditorial]
T
[Detailed Description]
insert:
transmit power, LOS blockage, "availability
requirement", and rain fall.
[Reason for Edit]
The range of 802.16 radios varies with availability
requirement.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
10
[Starting Line #]
11
[(T)echnical / (E)ditorial]
T
[Detailed Description]
insert:
"The PMP system SHALL not preclude coexisting a PMP
and P2P systems in the same sector."
[Reason for Edit]
It will give more flexibility to customers.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
12
[Starting Line #]
12
[(T)echnical / (E)ditorial]
E
[Detailed Description]
delete:
broadcast "bus (using LAN terminology)", since ...
[Reason for Edit]
Does not require.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
12
[Starting Line #]
5
[(T)echnical / (E)ditorial]
T
[Detailed Description]
replace
"Since all data traffic in an 802.16 network MUST
go through the base transceiver station (BTS), it is
convenient for the BTS to serve as a radio resource
supervisor, which controls the allocation of bandwidth
on the radio channel [10]."
with
"Since all data traffic in a single cell of an 802.16
network MUST go through a base transceiver station (BTS),
that station will serve as a local radio supervisor."
[Reason for Edit]
The sentence possibly convey mis-concept that PMP is
a single cell system. But, it is not true.
--------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
12
[Starting Line #]
12
[(T)echnical / (E)ditorial]
E
[Detailed Description]
change "initiated" with "transmitted".
[Reason for Edit]
Better wording
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
12
[Starting Line #]
24
[(T)echnical / (E)ditorial]
T
[Detailed Description]
insert:
" 3.3 Legacy of the Systems
At the time an 802.16 system is developed, there will
be many legacy systems to exist in the LMDS market.
In order for these system to be considered to compliance,
these must be a transition plan, which will permit the
optional conversion from legacy to new standard within
a period of 3 years. "
[Reason for Edit]
Legacy should be the one of the most important issues
for this standard.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
15
[Starting Line #]
13
[(T)echnical / (E)ditorial]
T
[Detailed Description]
change "Bandwidth" with "Throughput"
[Reason for Edit]
better word.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
15
[Starting Line #]
15
[(T)echnical / (E)ditorial]
T
[Detailed Description]
add at the end of the sentence:
"and when frequency reuse in adjacent sector is
not required. If wide scale of frequency reuse
is required by the network operator, then the peak
capacity will be distributed to multiple sectors."
[Reason for Edit]
In order to accommodate large number of subscribers,
frequency reuse in term of sectorizartion is required for
the system. In that case, it is possible that the network
operator can not support 155 Mbps for an STS.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
15
[Starting Line #]
19
[(T)echnical / (E)ditorial]
T
[Detailed Description]
change "SHOULD" with "SHALL"
[Reason for Edit]
Customers want flexibility.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
15
[Starting Line #]
31
[(T)echnical / (E)ditorial]
E
[Detailed Description]
insert:
An 802.16 system SHOULD be available to transport all services
at "better than" their requirement maximum error rates.....
[Reason for Edit]
To make the meaning of the sentence more clear.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
16
[Starting Line #]
14
[(T)echnical / (E)ditorial]
T
[Detailed Description]
change:
"the 802.16 protocols MUST be flexible in consumed radio bandwidth
(spectral efficiency), cell radius, and transmit power to accommodate
a rain allowance that varies with geography [11]."
with
"the 802.16 protocols SHOULD be flexible in consumed radio bandwidth
(spectral efficiency), cell radius, or transmit power to accommodate
a rain allowance that varies with geography [11]"
[Reason for Edit]
Manufacturers need to assess the implications of rainfall and to develop
means to compensate. These can include one or more of the suggested
actions in the system design. Implementation of a specific designed
compensation measure at a given point in time (e.g., bandwidth, power)
would depend on the specific environmental circumstances.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
16
[Starting Line #]
32
[(T)echnical / (E)ditorial]
T
[Detailed Description]
replace:
"allow for detection of errors by the MAC (e.g., by CRC)
with 1,2, or 3 errored bits (a Hamming Distance of 4) [7]."
with
"permit transfer of reliability information that was
determined by PHY layer, for example number of elements
corrected by a Reed-Solomon decoder. Another measure
of reliability of information is maximum likelihood
decision metrics."
[Reason for Edit]
It is more reliable and efficient to use information
that already exists in the PHY layer than to ask the MAC
layer derives new reliability information.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
17
[Starting Line #]
17
[(T)echnical / (E)ditorial]
T
[Detailed Description]
Insert:
The following 802.16 system "round trip" delay
[Reason for Edit]
To make clear that the transit delay is for round trip delay.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
17
[Starting Line #]
33
[(T)echnical / (E)ditorial]
T
[Detailed Description]
Delete:
"The radio propagation time is 3.3usec/km [cite G.114]. If
the distance between STS and BTS is 5 km, this propagation
time is 16.7usec."
[Reason for Edit]
These sentences are not required for this document.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
17
[Starting Line #]
37
[(T)echnical / (E)ditorial]
T
[Detailed Description]
Insert:
suggested to be "less than" 19.5 ms
[Reason for Edit]
19.5 ms is a huge delay. The delay should much less than that.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
18
[Starting Line #]
2
[(T)echnical / (E)ditorial]
E
[Detailed Description]
insert:
802.16 system capacity "requirement" is defined...
[Reason for Edit]
To make the meaning of the sentence more clear.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
18
[Starting Line #]
3
[(T)echnical / (E)ditorial]
T
[Detailed Description]
Change "bandwidth" with "throughput"
[Reason for Edit]
better terminology
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
18
[Starting Line #]
3
[(T)echnical / (E)ditorial]
E
[Detailed Description]
change "This capacity" with "The delivered capacity"
[Reason for Edit]
better wording
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
18
[Starting Line #]
12
[(T)echnical / (E)ditorial]
E
[Detailed Description]
Insert:
Upstream/Downstream Channels "Data Rates"
[Reason for Edit]
To make the meaning of the sentence more clear.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
18
[Starting Line #]
13
[(T)echnical / (E)ditorial]
E
[Detailed Description]
change "bandwidth" with "data rate"
[Reason for Edit]
To make the meaning of the sentence more clear.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
22
[Starting Line #]
8
[(T)echnical / (E)ditorial]
T
[Detailed Description]
Change "SHALL" with "SHOULD"
[Reason for Edit]
To consider the legacy of PMP systems.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
23
[Starting Line #]
21
[(T)echnical / (E)ditorial]
E
[Detailed Description]
Change "SHALL" with "SHOULD"
[Reason for Edit]
"SHALL strive to..." does less make
sense than "Should strive to"
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
23
[Starting Line #]
22
[(T)echnical / (E)ditorial]
T
[Detailed Description]
Replace:
"Some particulars with the 802 model (see IEEE standards
for Local and Metropolitan Area Networks: Overview and
Architecture (IEEE Std 302-1990)[21]) are:"
with
"The particular features of 802 model which are listed
below SHOULD be studied to see if these features SHOULD
apply for 802.16 model:"
[Reason for Edit]
802.16 is neither LAN nor MAN. For example, for MAC multicasting,
we SHOULD not preclude the upstream direction multicast such as
web hosting.
----------------------------------
[Submitter's Last Name]
Park
[Submitter's First Name]
Yunsang
[Starting Page #]
24
[Starting Line #]
22
[(T)echnical / (E)ditorial]
E
[Detailed Description]
Change "Policying" with "policing"
[Reason for Edit]
misspell
----------------------------------