Hi, everyone,
Below are my
two-cents on the issue of the repeaters.
- The use of
repeaters is a performance enhancement issue. In some situations,
repeaters make sense. While in others, there are alternative ways as well.
A mandatory requirement seems too strong.
- The impact on the
AI is subject to investigation. It may be a little too early to conclude
that the system has to support huge delay or delay spread.
Best,
Junyi
Li
-----Original
Message-----
From: Humbert,
John J [NTWK SVCS] [mailto:JHumbe01@sprintspectrum.com]
Sent: Tuesday, October 21, 2003 2:11
PM
To:
stds-80220-requirements@ieee.org
Subject: RE: stds-80220-requirements:
FW: 802.20 Requirements - Repeaters
Joanne
et al.,
Support for the use
of repeaters needs to be a mandatory requirement because operators need to
have this tool in their tool box to economically provide in-building
coverage and in lightly populated areas. If you recall from the
presentation in Singapore that KTF uses allot more repeaters than base
stations in their network. The same trend is also occurring in the US.
The
impact on the AI is that the system has to support larger delay's and delay
spreads.
John J.
Humbert
6220 Sprint Parkway
Mailstop KSOPHD0504 -
5D276
Overland Park, KS
66251-6118
PCS (816)
210-9611
-----Original
Message-----
From: Joanne
Wilson [mailto:joanne@arraycomm.com]
Sent: Friday, October 17, 2003 11:10
PM
To: Humbert, John J
[NTWK SVCS]; stds-80220-requirements@ieee.org
Subject: RE: stds-80220-requirements:
FW: 802.20 Requirements - Repeaters
It's
not clear to me the AI design implications of the changes you have
made. However,."should support" implies that
support for
repeaters is optional. Changing to "must not preclude" makes it a
mandatory requirement. This change,
at
least to me, doesn't clarify the rationale so much as changes requirement
itself. I support maintaining the previous wording of the requirement
until we have a better understanding of the implications of the change and
the rationale for such.
-----Original
Message-----
From:
owner-stds-80220-requirements@majordomo.ieee.org
[mailto:owner-stds-80220-requirements@majordomo.ieee.org]On Behalf Of Humbert, John J [NTWK
SVCS]
Sent: Thursday,
October 16, 2003 1:28 AM
To:
stds-80220-requirements@ieee.org
Subject: stds-80220-requirements: FW:
802.20 Requirements - Repeaters
Current
Text
Support
for the use of Repeaters (Open)
The system should
support the use of repeaters
Proposed
Text
The AI must not preclude the
use of repeaters or reflectors to bypass obstructions and extend cell
coverage.
Rational
1) This text clarifies the
rational given at the meeting in Singapore
John J.
Humbert
6220 Sprint
Parkway
Mailstop KSOPHD0504 -
5D276
Overland Park, KS
66251-6118
PCS (816)
210-9611