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(19) United States (12) Reissued Patent
(10) Patent Number:
Fischer et a]. (54)
US RE40,564 E
(45) Date of Reissued Patent:
CELLULAR COMMUNICATIONS SYSTEM
(56)
*Nov. 4, 2008
References Cited
WITH SECTORIZATION
U.S. PATENT DOCUMENTS
(75) Inventors: Larry G. Fischer, Waseca, MN (U S); ~ -
3,931,473 A
David S. Russell, Minneapolis, MN
1/1976
(US); Philip M. Wala, Waseca, MN
F
' ,J.
ems T
(Continued)
(US); Charles R. Ratliff, Madison, GA
FOREIGN PATENT DOCUMENTS
(US); Jeffrey O. Brennan, Waseca, MN (US)
CA
2008900
(73) Assignee: ADC Telecommunications, Inc., Eden
(continued)
Pralrle, MN (US) (*)
NOticeZ
10/1990
OTHER PUBLICATIONS
This patent is subject to a terminal dis-
“And now a few words from your Customers . . . ” Four
claimer.
pages. ADC Kentrox.COPYRGT. A Subsidiary of ADC
Telecommunications, Inc. Aug. 1992.
(21) App1.No.: 09/747,273 (22) Filed:
(Continued)
Dec. 22, 2000
Primary ExamineriEdan Orgad
Related US. Patent Documents
(74) Attorney, Agent, or FirmiFogg & Powers LLC
Reissue of:
(64) Patent No.:
5,852,651
(57)
Issued' _ Appl' NO" .
Dec' 22’ 1998 08/299’159
A method and apparatus for sectorizing coverage of a cellu lar communications area includes prOV1~d~mg a remot e um~t
Flled:
Ang' 31’ 1994
having microcell antenna units. Each microcell antenna unit
U.S. Applications: (60) Division of application No, 08/204,660, ?led on Mar, 2,
is con?gured to cover a particular sector. The remote unit is connected to a sectorized base Station unit which is con nected to a mobile telecommunications switching of?ce.
1994, now Pat. No. 5,627,879, which is a continuation-in-
ABSTRACT
Part Of application N0~ 08/183,221, ?led on Jan. 14, 1994,
Separate digitized streams representative of telephone Sig
IlOW abandoned, WhiCh is a continuation-impart Of applica'
nals received from the mobile telecommunications switch
tiorlNoj08/068’089’?le‘10nMay28’1993i¥lowaband°nedi
ing of?ce are generated corresponding to the microcell
Whlch?llsda connnuanon'm'pm of alg’hilanmé Nol'l.0}71/9.46’
antenna units and the separate digitized streams are multi
402’
plexed and transmitted to the remote unit. The remote unit
e
on sep' 17’ 1992’ now a an one ’ W 10
ls a
continuation-in-part of application No. 07/946,964, ?led on
.
Sep‘ 17 1992 now abandoned which is a continuatmmim
. .
.
separate digitized streams corresponding to the microcell
now abandoned, which is a continuation-in-part of appliea_ tion No. 07/946,548, ?led on Sep. 17, 1992, now abandoned.
antenna units and the separate digitized streams are con verted to RF signals for coverage of a particular sector by the
corresponding microcell antenna unit. Separate digitized
H04B 1/38 H04M 1/00 H04Q 7/20 H04Q 7/30 H04Q 7/36
(2006.01) (2006.01) (2006.01) (200601) (200601)
streams are separately generated for each microcell antenna unit representative of RF signals received at the microcell antenna unit for a particular sector. The separately generated digitized streams are multiplexed at the remote unit and transmitted to the sectorized base Station unit. At the sector ized base Station unit, the multiplexed digitized streams are
US. Cl. ................... .. 455/561; 455/447; 455/562.1;
demuhiplexed into the separate digitized Streams corre'
455/448; 455/56'2; 398/41; 398/115 _
(58)
.
part of application N0'07/946,931,?1ed on Sep‘ 17, 1992,
(51) Illt- Cl-
(52)
.
demultiplexes the multiplexed digitized streams into the
_
sponding to microcell antenna units and the separate digi
_
t1zed Streams are converted to RF Signals for PI'OVISIOII to the
Field of Class1?cat10n Search ................ .. 455/403,
mobile telecommunications switching Of?ce_ Diversity at
455/422-1, 560, 561, 5621, 447, 448, 111, 455/7, 14, 520; 370/310, 310.2, 328 See application ?le for complete search history.
the remote units is also provided. 70 Claims, 58 Drawing Sheets 1311 /
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US RE40,564 E Page 2
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