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Joanne,
Micro
and Pico cells ARE included in the definition. I believe the revised
definition is now comprehensive enough, but, it would be useful to hear the
opinions of other people as well.
Dan
Dan,
Thank you for acknowledging my suggestions.
However, I have proposed an alternative to your text which
includes options beyond those that "augment the
radio signal in areas within the boundary of a cell." Coverage is
coverage, and proposals should be able to include options
like pico-cells that can provide coverage to
otherwise
hard
to reach areas and may be more cost effective and/or have better performance
characteristics than repeaters and relays. So, I continue to disagree with the text you provide
which, in my humble opinion, is not as flexible as what was sought
by various
respondents to the reflector. For the ease of the reader, I
will restate my proposal:
Coverage Enhancing
Technologies (CETs), are technologies that can provide radio coverage to places that are hard to
reach from macrocellular base
stations. Examples of CETs include, but are not limited to,
repeaters, store and forward relays,
microcells and pico-cells, and leaky cable
systems (which are typically used in tunnels),
etc.
Best
regards,
Joanne
From:
owner-stds-80220-requirements@majordomo.ieee.org
[mailto:owner-stds-80220-requirements@majordomo.ieee.org]On Behalf Of
Gal, Dan (Dan)
Sent: Thursday, October 30, 2003 5:59
PM
To: ! Stds-80220-Requirements (E-mail)
Subject: RE:
stds-80220-requirements: 802.20 Requirements: Coverage Enhancing Technologies
- Definition of
All,
Marianna and Joanne have provided some good
suggestions which I have incorporated in the following revised
definition:
Coverage Enhancing
Technologies: In the context of wireless communications
- technologies that augment the radio signal, in areas within the
boundary of a cell, where the BS/MS transmit-signal is obstructed and significantly
attenuated by terrain or man-made structures. Such technologies employ devices such
as repeaters, relays, leaky coax etc. that rely on the
BS they extend from for backhaul
communications as well
as Micro/Pico cells that do
provide their own backhaul connectivity. The term Repeater
typically refers to an analog device that amplifies and retransmits the
original transmission (without frequency translation). A
Relay (analog or digital) typically retransmits the received signal in
another frequency. A digital relay (or regenerator) decodes the information
from the received signal, regenerates and retransmits it. In the case
of packet communications, relays may also perform Layer-3
functions as well as delayed
transmission.
Dan
Dan,
I find your definition of a "Coverage Enhancing Technology" as
being essentially a repeater. My understanding of the
email discussion is that people were looking
for more flexibility in how proposals address coverage
holes.
Instead, I propose an alternative, more flexible definition
which includes repeaters and other approaches:
Coverage Enhancing Technologies (CETs),
are technologies that can provide
radio coverage to places that are hard to reach from
macrocellular base stations.
Examples of CETs include, but are not limited to, repeaters, store and forward relays, microcells
and pico-cells, and leaky cable
systems (which are typically used in tunnels),
etc.
I also don't think we need to define repeaters, relays, etc. as
they are standard within the industry.
Best regards,
Joanne
All,
As requested
in the last System Requirements CG call, a definition of the
term "Coverage Enhancing Technologies" is proposed
below.
Coverage Enhancing Technologies:
In the context of wireless communications -
technologies that augment the radio signal, in areas within the
boundary of a cell, where the
BS/MS transmit signal is obstructed and significantly
attenuated by terrain or man-made structures. Such
technologies employ devices such as repeaters and relays that rely on
the BS for backhaul communications. The term Repeater
typically refers to an analog device that amplifies and retransmits the
original transmission (without frequency translation). A
Relay (analog or digital) typically retransmits
the received signal in another frequency. A digital relay (or
regenerator) decodes the information from the received signal,
regenerates and retransmits it. In the case of packet
communications, relays may also perform Layer-3
functions.
Dan
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