Technically, T-Mobile already relinquished control of that 10 MHz over
three years ago in March 2001.

The spectrum transaction component of the network sharing agreement
between T-Mobile nee VoiceStream & Cingular in NYC & California was
structured as follows:  T-Mobile received 10 MHz disaggregations from
the Cingular PacBell PCS B 30 MHz licenses for the LA & San Francisco
MTAs, while Cingular in return received a 10 MHz disaggregation from
the T-Mobile Omnipoint PCS A 30 MHz license in the NYC MTA plus
T-Mobile's full PCS F 10 MHz license in the Detroit BTA & full PCS E
10 MHz license in the St. Louis BTA.

However, as neither T-Mobile in California nor Cingular in NYC wished
to construct its own network, the disaggregated 10 MHz blocks, which
became fully separate licenses under new call signs issued to the
receiving parties, were still pooled in commune w/ the network sharing
arrangement, such that T-Mobile became essentially an MVNO in
California, while Cingular became an MVNO in NYC.

To address the recent contingency agreement for T-Mobile's Deutsche
Telekom parent to dissolve the network sharing arrangement by
acquiring Cingular's PacBell spectrum & network assets in California &
Nevada, T-Mobile will retain the 10 MHz disaggregations plus receive
additionally the remaining 20 MHz of each of the original PCS B
licenses from Cingular.  In NYC, as well, Cingular will retain the 10
MHz disaggregation, but no further transfer will take place.

As such, T-Mobile will have reaggregated the full PCS B 30 MHz
licenses throughout both the LA & San Francisco MTAs.  Cingular will
no longer control any PCS spectrum in California - though
Cingular-AT&TWS will potentially possess a relatively consistent 35
MHz combined Cellular & PCS spectrum from AT&TWS throughout most of
the Golden State.  Across the country in the Big Apple, T-Mobile will
continue to control 30 MHz of its original 40 MHz of PCS spectrum,
while Cingular will walk away w/ the 10 MHz disaggregation.

To alleviate your concerns over the loss of the 10 MHz disaggregation
from the pooled spectrum utilized in NYC, remember that dissolution of
the network sharing agreement will also entail Cingular sub migration
to the AT&TWS GSM 850/1900 network in NYC.  True, 10 MHz will be
siphoned from the pool by Cingular, but the mitigating factor will be
that T-Mobile will no longer have to also support Cingular subs in its
spectrum.  The AT&TWS network in NYC will potentially have to absorb
that Cingular load.  On the other hand, w/ the Cingular MVNO weight
removed, T-Mobile w/ its readily sufficient remaining spectrum can
then focus its efforts solely on its own native subs.

Along w/ links to the licenses' respective market summaries from the
FCC ULS, detailed below is the PCS spectrum profile in NYC w/ respect
to T-Mobile & Cingular:

T-Mobile:

KNLF202 - PCS A-A3 20 MHz - Omnipoint NY MTA License, LLC
<http://wireless2.fcc.gov/UlsApp/UlsSearch/licenseMarketSum.jsp?licKey=8880>

KNLF982 - PCS D 10 MHz - Omnipoint Facilities Spectrum 2, LLC
<http://wireless2.fcc.gov/UlsApp/UlsSearch/licenseMarketSum.jsp?licKey=9571>

Cingular:

WPSL626 - PCS A3 10 MHz - PACIFIC TELESIS MOBILE SERVICES, LLC
<http://wireless2.fcc.gov/UlsApp/UlsSearch/licenseMarketSum.jsp?licKey=2325824>

WPXG239 - PCS A3 10 MHz - Cingular New England License Sub LLC
<http://wireless2.fcc.gov/UlsApp/UlsSearch/licenseMarketSum.jsp?marketType=L&licK
ey=2498843&x=11&y=15>

To clarify a potential source of confusion, the second Cingular PCS A3
license actually reflects only GSM Corridor rural highway corridor
partitions subtracted from the originally disaggregated PCS A3
license.

Andrew
--
Andrew Shepherd
cinema@ku.edu
cinema@sprintpcs.com
http://www.wirelesswavelength.com/