US007990904B2
`
`(12) United States Patent
`Proctor, Jr. et al.
`
`(10) Patent No.:
`(45) Date of Patent:
`
`US 7,990,904 B2
`Aug. 2, 2011
`
`(54) WIRELESS NETWORK REPEATER
`
`(56)
`
`References Cited
`
`(75) Inventors: James A. Proctor, Jr., Melbourne
`Beach, FL (US); Kenneth M. Gainey,
`Satellite Beach, FL (US)
`
`(73) Assignee: QUALCOMM Incorporated, San
`Diego, CA (US)
`
`- r
`(*) Notice:
`
`(21) Appl. No.:
`ppl. No.:
`(22) PCT Filed:
`
`Subject to any disclaimer, the term of this
`patent is extended or adjusted under 35
`U.S.C. 154(b) by 1154 days.
`1OAS36,471
`9
`Dec. 16, 2003
`
`(86). PCT No.:
`S371 (c)(1),
`(2), (4) Date: May 26, 2005
`
`PCT/USO3/39889
`
`(87) PCT Pub. No.: WO2004/062305
`PCT Pub. Date: Jul. 22, 2004
`
`(65)
`
`Prior Publication Data
`US 2006/0098592 A1
`May 11, 2006
`
`Related U.S. Application Data
`(60) Provisional application No. 60/433,171, filed on Dec.
`16, 2002.
`(51) Int. Cl.
`(2006.01)
`H04.3/08
`(52) U.S. Cl. ........................................ 370/315; 370/338
`(58) Field of Classification Search ........................ None
`See application file for complete search history.
`
`
`
`U.S. PATENT DOCUMENTS
`3,363,250 A
`1/1968 Irving
`4,000.467 A 12/1976 Lentz et al.
`4,001,691 A
`1/1977 Gruenberg
`4.061,970 A 12, 1977 M
`tal.
`4081,753 A
`3, 1978
`seron a
`4,124,825. A 1 1/1978 Webb et al.
`4,204,016 A
`5/1980 Chavannes
`4,334.323 A
`6, 1982 Moore
`4,368,541 A
`1/1983 Evans
`(Continued)
`FOREIGN PATENT DOCUMENTS
`11864O1
`7, 1998
`(Continued)
`OTHER PUBLICATIONS
`
`CN
`
`Notification of the First Office Action from Chinese Patent Office
`dated Sep. 8, 2006 for the corresponding Chinese patent application
`No. 20038O105.267.7.
`
`(Continued)
`Primary Examiner — Lester Kincaid
`Assistant Examiner — Phuoc Doan
`(74) Attorney, Agent, or Firm — Linda G. Gunderson
`(57)
`ABSTRACT
`A frequency translating repeater (250) for use in a time divi
`sion duplex radio protocol communications system includes a
`processor (260), a bus (261), a memory (262), an RF section
`(264), and an integrated Station device (264). An access point
`(210) is detected based on information transmitted frequency
`channels using a protocol. Detection is initiated automati
`cally during a power-on sequence or by activating an input
`device Such as a button. Frequency channels are scanned for
`a beacon signal and an access point chosen as a preferred
`access point based on a metric Such as power level.
`50 Claims, 6 Drawing Sheets
`
`05
`
`DELL
`EXHIBIT 1033 - PAGE 1
`
`

`

`US 7,990.904 B2
`Page 2
`
`U.S. PATENT DOCUMENTS
`4.509,206. A
`4/1985 Carpe etal
`4,701,935 A 10/1987 Namiki et al.
`4,723,302 A
`2/1988 Fulmer et al.
`4,777,653 A 10/1988 Bonnerot et al.
`4,783,843. A 1 1/1988 Leffet al.
`4.820,568 A
`4/1989 Harpell et al.
`4,922,259 A
`5/1990 Hallet al.
`E. A
`$32,
`s etal
`5,214,788 A
`5/1993 Delaperriere et al.
`3.8% A
`$32, East al.
`5.333,175 A
`7/1994 Ariyavisitakul et al.
`5,341,364 A
`8, 1994 Marra et al.
`5,349,463 A
`9, 1994 Hirohashi et al.
`5,368.897 A 1 1/1994 Kurihara et al.
`5,371,734. A 12/1994 Fischer et al.
`-
`J.
`3.35. A
`sheet al.
`5.408.197 A
`4, 1995 Ske etal
`w sy
`y
`5,408.618 A
`4, 1995 Aho et al.
`5,430,726 A
`7/1995 Moorwood et al.
`5,446,770 A
`8/1995 Urabe et al.
`SS A
`1923 R al.
`5,485.486 A
`1/1996 Gilhousen et al.
`5,509,028 A
`4, 1996 Marque-Pucheu et al.
`3.68 A
`3: Mythy et al.
`3. A
`$56, Ribeta
`5,610,916 A
`3/1997 Kostreski etal
`5,648,984. A
`7/1997 Kroninger et al.
`3. A
`2. isn't al.
`5,678,177 A 10/1997 Beasley
`5,678,198 A 10, 1997 Lemson et al.
`5,684.801 A 1 1/1997 Amitay et al.
`5,697.052 A 12, 1997 Treatch
`5,726.980 A
`3/1998 Rickard et al.
`5,732,334. A
`3/1998 Miyakeet al.
`5,745,846 A
`4/1998 Myer et al.
`33. A &E El 1
`5767,788 A
`6, 1998 E. et al.
`5,771,174. A
`6/1998 Spinner et al.
`5,784,683 A
`7, 1998 Sistanizadeh et al.
`5,794,145 A
`8, 1998 Milam
`-
`I
`f1998 Niki
`32. A
`3.32. R.
`38; so. A
`1656 S.
`5,852,629 A 12/1998 Iwamatsu et al.
`3:1; A
`1992 asset al.
`5.875.179 A
`2, 1999 NE
`w -
`s
`A
`3229 As 1
`5.890.055 A
`3/1999 All stal
`s--- w
`SS A
`1992 St. et al
`5.963.846 A
`10/1999 syst al.
`;
`: A Yguyet al.
`6,005,855. A 12, 1999 Zehaviet al.
`6,005,884. A * 12/1999 Cook et al. .................... 375/132
`6,014,380 A
`1/2000 Hendel et al.
`6.032.194. A
`2, 2000 Gaiet al.
`6,061,548. A
`52000 Reudinket al.
`6,088,570 A
`7/2000 Komara et al.
`6.10.400 A
`8/2000 Ogazetal
`6,108.364 A
`8/2000 Weaver, Jr. et al.
`6,128,512 A 10, 2000 Trompower et al.
`6,128,729 A 10/2000 Kimball et al.
`6,163,276 A 12/2000 Irving et al.
`6,188,694 B1
`2/2001 Fine et al.
`6,188,719 B1
`2/2001 Colomby
`6,195,051 B1
`2/2001 McCoy et al.
`6,202,114 B1
`3/2001 Dutt et al.
`6,215,982 B1
`4/2001 Trompower et al.
`6,219,739 B1
`4/2001 Dutt et al.
`
`- W
`
`aiem et al.
`
`4/2001 Gietema et al.
`6,222,503 B1
`8/2001 Langston et al.
`6,272.351 B1
`E. R 858 Angel.
`6,304,563 B1
`10/2001 Blessent et al.
`6,304,575 B1
`10/2001 Carroll et al.
`6,331,792 B1
`12/2001 Tonietto et al.
`6,339,694 B1
`1/2002 Komara et al.
`6,342,777 B1
`1/2002 Takahashi et al.
`6,363,068 B1
`3/2002 Kinoshita et al.
`2.78% R 23: She et al.
`6,377,612 B1
`4/2002 Baker et al.
`3.19.
`358 Cal
`SS
`565 RE"
`6,388,995 B1
`5, 2002 Gaietal
`6.393.299 Bi
`52002 Mizumoto etal
`- - -
`6,404,775 B1
`6/2002 Leslie et al.
`6,441,781 B1
`8/2002 Rog et al.
`6,473,131 B1
`10/2002 Neugebauer et al.
`6,480,481 B1
`1 1/2002 Park et al.
`6,501.955 B1
`12/2002 Durrant et al.
`6,535,732 B 1
`3/2003 McIntosh et al.
`6,539,028 B1
`3/2003 Soh et al.
`6,539,204 B1
`3/2003 Marsh et al.
`: R 3. RSR al
`6,563,468 B2
`5, 2003 Hill et al.
`6,574,198 B1
`6/2003 Petersson
`6,628,624 B1
`9/2003 Mahajan et al.
`6,664,932 B2 12/2003 Sabet et al.
`86. R
`39. E.
`s
`glu et al.
`6,690,657 B1
`2/2004 Lau et al.
`89.5 58: Rize a
`6.738.54 B2
`4/2004 Ohkura
`6,766,113 B1
`7/2004 Al-Salameh
`ww.
`6,781,544 B2
`82004 Saliga et al.
`866
`23: Ellis,
`9 : El
`6,906,669 B2
`6/2005 Sabet et al.
`6,934,511 B1
`8/2005 Lovinggood et al.
`3:36 E. S. Naea
`6.957,042 B2 10, 2005 Williams
`- -
`6,983,162 B2
`1/2006 Garani et al.
`6,985,516 B1
`1/2006 Easton et al.
`6,990,313 B1
`1/2006 Yarkosky et al.
`29:23): R: 29: R al.
`udd et al.
`7,043,203 B2
`5/2006 Miquel et al.
`7.050.442 B1
`5/2006 Sugar, et al.
`7.050.452 B2
`5/2006 Sugar et al.
`7,058,368 B2
`6/2006 Nicholls et al.
`7,088,734 B2
`8/2006 Newberg et al.
`7,103,344 B2
`9/2006 Menard et al.
`7,120,930 B2 10/2006 Maufer et al.
`7,123,670 B2 10/2006 Gilbert et al.
`7,123,676 B2 10/2006 Gebara et al.
`2.
`R:
`29: E. et al.
`7.33.460 B2
`1/2006 Eal
`7,139.527 B2
`1/2006 Tamaki etal
`k ---
`7,167,526 B2
`1/2007 Liang et al.
`7,187,904 B2
`3, 2007 Gainey et al.
`7,193.975 B2
`3, 2007 Tsutsumi et al.
`7,194.275 B2
`3/2007 Bolin et al.
`7,200, 134 B2
`4, 2007 Proctor, Jr. et al.
`7.215.964 B2
`5/2007 Miyake et al.
`7,230,935 B2
`6/2007 Proctor, Jr. et al.
`7,233,771 B2
`6/2007 Proctor, Jr. et al.
`7,248,645 B2
`7/2007 Vialle
`7,254,132 B2
`8/2007 Takao et al.
`7,299,005 B1
`1 1/2007 Yarkosky et al.
`7,315,573 B2
`1/2008 Lusky et al.
`7,319,714 B2
`1/2008 Sakata et al.
`
`DELL
`EXHIBIT 1033 - PAGE 2
`
`

`

`US 7,990.904 B2
`Page 3
`
`370,338
`
`370,338
`
`7,321,787
`7,339,926
`7,352,696
`7,409, 186
`7,430,397
`7,450,936
`7,457,587
`7,486,929
`7,577,398
`7,590,145
`7,623,826
`7,676, 194
`7,729,669
`2001/0031646
`2001/004O699
`2001/005058O
`2001/0050906
`2001/0054060
`2002, 0004924
`2002fOO18487
`2002fOO34958
`2002fOO45461
`2002fOO61031
`2002.00899.45
`2002/0101843
`2002/0102948
`2002.0109585
`2002fO115409
`2002/01 19783
`2002/0136268
`2002/0141435
`2002fO159506
`2002fO163902
`2002/01774O1
`2003/00263.63
`2003/O1391.75
`2003/0179734
`2003/O185163
`2003,021 1828
`2003/0235170
`2003/0236069
`2004.002953T
`2004/OO38707
`2004.?0047.333
`2004.?004.7335
`2004.00568O2
`2004/01 10469
`2004/O131025
`2004/O146013
`2004/O157551
`2004O166802
`2004/0176050
`2004/O198295
`2004/O2O8258
`2004/0218683
`2004/0229563
`2004/O2354.17
`2004/0248581
`2004/0264511
`2005, OO14464
`2005/OO3O891
`2005/0042999
`2005/O130587
`2005/02O1315
`2005/0254442
`2005/0286448
`2006/0028388
`2006.0035643
`2006,0041680
`2006, OO52066
`2006/005.2099
`2006.0056352
`2006, OO63484
`2006, OO63485
`2006/02O3757
`2006, O262026
`2007/0025349
`2007/0O254.86
`2007/0O32.192
`
`B2
`B2
`B2
`B2
`B2
`B2
`B2
`B2
`B2
`B2
`B2
`B2
`B2
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`A1
`
`1, 2008
`3, 2008
`4, 2008
`8, 2008
`9, 2008
`11, 2008
`11, 2008
`2, 2009
`8, 2009
`9, 2009
`11/2009
`3, 2010
`6, 2010
`10, 2001
`11, 2001
`12, 2001
`12, 2001
`12, 2001
`1, 2002
`2, 2002
`3, 2002
`4, 2002
`5, 2002
`T/2002
`8, 2002
`8, 2002
`8, 2002
`8, 2002
`8, 2002
`9, 2002
`10, 2002
`10, 2002
`11, 2002
`11, 2002
`2, 2003
`T/2003
`9, 2003
`10, 2003
`11, 2003
`12, 2003
`12, 2003
`2, 2004
`2, 2004
`3, 2004
`3, 2004
`3, 2004
`6, 2004
`T/2004
`T/2004
`8, 2004
`8, 2004
`9, 2004
`10, 2004
`10, 2004
`11, 2004
`11, 2004
`11, 2004
`12, 2004
`12, 2004
`1/2005
`2, 2005
`2, 2005
`6, 2005
`9, 2005
`11/2005
`12, 2005
`2, 2006
`2, 2006
`2, 2006
`3, 2006
`3, 2006
`3, 2006
`3, 2006
`3, 2006
`9, 2006
`11, 2006
`2, 2007
`2, 2007
`2, 2007
`
`Kim et al.
`Stanwood et al.
`Stephens et al.
`Van Buren et al.
`Suda et al.
`Kim
`Chung
`Van Buren et al.
`Judd et al.
`Futch et al.
`Pergal et al.
`Rappaport et al.
`Van Buren et al.
`Williams et al.
`Osawa et al.
`O'Toole
`Odenwalder et al.
`Fillebrown et al.
`Kim et al.
`Chen et al.
`Oberschmidt et al.
`Bongfeldt et al.
`Sugar et al.
`Belcea et al.
`Sheng et al. ............
`Stanwood et al.
`Sanderson
`Khayrallah et al.
`Bourlas et al.
`Gan et al.
`Newberg et al.
`Alamouti et al.
`Takao et al.
`Judd et al.
`Stoter et al.
`Kim
`Tsutsumi et al.
`Bertonis et al.
`Dalgleish et al.
`Trainin ...................
`Sakata et al.
`Pugel et al.
`Kim
`Han et al.
`Proctor, Jr. et al.
`Hollister
`Judd et al.
`Dohler et al.
`Song et al.
`Gainey et al.
`McKay, Sr. et al.
`Steer et al.
`Nicholls et al.
`Lozano et al.
`Batra et al.
`Fitton et al.
`Dean
`Seki et al.
`Futch et al.
`Larsson et al.
`Stephens et al.
`Rappaport
`Suda et al.
`Lakkis
`Proctor Jr., et al.
`Proctor et al.
`Schantz
`Vook et al.
`Proctor, Jr
`Cleveland et al.
`Parker et al.
`Proctor et al.
`Proctor, Jr., et al.
`Gainey et al.
`Young et al.
`Gainey et al.
`Bajic et al.
`Gainey et al.
`Gainey et al.
`
`5/2007 Zuckerman et al.
`2007, 0121546 A1
`2007/0286.11.0 A1 12/2007 Proctor et al.
`2008/0057862 A1
`3/2008 Smith et al.
`2008, 0233942 A9
`9, 2008 Kim et al.
`
`EP
`EP
`EP
`EP
`EP
`EP
`GB
`GB
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`KR
`WO
`WO
`WO
`WO
`WO
`WO
`WO
`WO
`WO
`WO
`WO
`WO
`WO
`WO
`WO
`WO
`WO
`WO
`WO
`
`FOREIGN PATENT DOCUMENTS
`0.523687
`1, 1993
`07099.73 A1
`5, 1996
`O715423
`6, 1996
`0847146 A2
`6, 1998
`O853393 A1
`T 1998
`O860953
`8, 1998
`2272599
`5, 1994
`2351420 A 12/2000
`62040895
`2, 1987
`63160442
`T 1988
`64011428
`1, 1989
`O210O358
`4f1990
`O3021884
`1, 1991
`05063623
`3, 1993
`05102907
`4f1993
`6O13947
`1, 1994
`O6334577
`12/1994
`O7030473
`1, 1995
`O7O791.87
`3, 1995
`O7O792O5
`3, 1995
`O8097762
`4f1996
`O82747O6
`10, 1996
`O9018484. A
`1, 1997
`O9162903
`6, 1997
`O9182155
`7/1997
`10032557 A
`2, 1998
`10 135892
`5, 1998
`11055713
`2, 1999
`11127104
`5, 1999
`2000031877
`1, 2000
`2000502.218 T
`2, 2000
`2000O82938 A
`3, 2000
`200O236290
`8, 2000
`2000269873
`9, 2000
`2001111575 A
`4/2001
`2002033691
`1, 2002
`2002111571 A
`4/2002
`20O2271255
`9, 2002
`2003174394
`6, 2003
`2004328666
`11, 2004
`20055312O2
`10/2005
`200553.1265
`10/2005
`2006503481
`1, 2006
`2006505.146
`2, 2006
`100610929
`8, 2006
`WO9214339
`8, 1992
`WO9734434
`9, 1997
`WO9858461 A1 12, 1998
`WO9959264 A2 11/1999
`WOOOSO971 A2
`8, 2000
`WOO152447
`T 2001
`WOO1825.12 A1 11 2001
`O2O8857 A2
`1/2002
`O2O08857
`1, 2002
`O2O17572
`2, 2002
`WOO3O 13005 A2
`2/2003
`04.002014
`12/2003
`WO2004001986 A2 12/2003
`WO2004.002014
`12/2003
`WO2004.004365
`1, 2004
`WO2004O32362
`4/2004
`WO2004O38958
`5, 2004
`2004062305 A1
`7, 2004
`WOO5115022
`12/2005
`OTHER PUBLICATIONS
`IEEE Std 802.11g-2003, “Part 11: Wireless LAN Medium Access
`Control (MAC) and Physical Layer (PHY) specifications: Amend
`ment 4: Further Higher Data Rate Extension in the 2.4 GHz Band.”
`IEEE Computer Society, Published by The Institute of Electrical and
`Electonics Engineers, Inc., Jun. 27, 2003.
`IEEE Std 802.11b-1999. “Part 11: Wireless LAN Medium Access
`
`DELL
`EXHIBIT 1033 - PAGE 3
`
`

`

`US 7,990.904 B2
`Page 4
`
`Control (MAC) and Physical Layer (PHY) specifications: Higher
`Speed Physical Layer Extension in the 2.4 GHz Band.” IEEE-SA
`Standards Board, Supplement to ANSI/IEEE Std. 802.11, 1999 Edi
`tion, Approved Sep. 16, 1999.
`Code of Federal Regulations, Title 47 Telecommunication; "Federal
`Communications Commission code part 15.407.” Federal Commu
`nications Commission vol.1, chapter I, part 15.407.
`IEEE Std 802. 11-1999 (Reaff 2003), “Part 11: Wireless LAN
`Medium Access Control (MAC) and Physical Layer (PHY) Specifi
`cations.” LAN MAN Standards Committee of the IEEE Computer
`Society; Paragraphs 7.2.3.1 and 7.2.3.9; Paragraph 15.4.6.2 and 18.4.
`6.2.
`IEEE Std 802.11b-1999. “Part 11; Wireless LAN Medium Access
`Control (MAC) and Physical Layer (PHY) specifications: Higher
`Speed Physical Layer Extension in the 2.4 GHz Band.” IEEE-SA
`Standards Board, Supplement to ANSI/IEEE Std. 802.11, 1999 Edi
`tion, Approved Sep. 16, 1999.
`IEEE Std 802.11g-2003, “Part 11; Wireless LAN Medium Access
`Control (MAC) and Physical Layer (PHY) specifications: Amend
`ment 4: Further Higher Data Rate Extension in the 2.4 GHz Band.”
`IEEE Computer Society, Published by The Institute of Electrical and
`Electronics Engineers, Inc., Jun. 27, 2003.
`IEEE Std 802.16-2001; “Part 16: Air Interface for Fixed Broadband
`Wireless Access Systems.” IEEE Computer Society and the IEEE
`Microwave Theory and Techniques Society, Published by The Insti
`tute of Electrical and Electronics Engineers. Inc., Apr. 8, 2002.
`IEEE Std 802, 11-1999 (Reaf 2003), “Part 11; Wireless Lan Medium
`Access Control (MAC) and Physical Layer (PHY) Specifications.”
`LAN MAN Standards Committee of the IEEE Computer Society;
`Paragraphs 7.2.3.1 and 7.2.39; Paragraph 7.3.24; Paragraphs 15.4.
`6.2 and 18.4.6.2.
`Andrisano, et al. On the Spectral Efficiency of CPM Systems over
`Real Channel in the Presence of Adjacent Channel and CoChannel
`Interference: A Comparison between Partial and Full Response Sys
`tems, IEEE Transactions on Vehicular Technology, vol. 39, No. 2,
`May 1990.
`First Office Action issued from the Chinese Patent Office in connec
`tion with corresponding Chinese application No. 2003.801.01286.2.
`(corresponding U.S. Appl. No. 10/530,546).
`Draft Corrigendum to IEEE Standard for Local and Metropolitan
`Area Networks—Part 16: Air Interface for Fixed Broadband Wireless
`Access Systems, IEEE P802.16-2004/Cor1/D5.
`Draft IEEE Standard for Local and Metropolitan Area Networks—
`Part 16: Air Interface for Fixed and Mobile Broadband Wireless
`Access Systems; Amendment for Physical and Medium Access Con
`trol Layers for Combined Fixed and Mobile Operation in Licensed
`Bands.
`FirstReport issued by IPAustralia on Jul. 31, 2007 in connection with
`the corresponding Australian application No. 2003239577. (corre
`sponding U.S. Appl. No. 10/516,327).
`IEEE 802.16(e), Part 16: Air Interface for Fixed Broadband Wireless
`Access Systems, 2005, Sections 8.4.10.2.1; 8.4.10.3.2.
`International Search Report-PCT/US03/039889, International
`Search Authority-ISA/US-May 19, 2004 (corresponding U.S. Appl
`No. 10/536.471).
`Kannangara, et al., “Analysis of an Adaptive Wideband Duplexer
`with Double-Loop Cancellation.” IEEE Transactions on Vehicular
`Technology, vol. 56, No. 4, Jul. 2007, pp. 1971-1982.
`Kutlu et al., “Performance Analysis of MAC Protocols for Wireless
`Control Area Network.” 1996 IEEE, pp. 494-499.
`Mexican Office communication dated Jul. 2, 2007 issued from Mexi
`can Patent Office for application PA/a/2004/011588 with partial
`translation thereof (corresponding U.S. Appl. No. 10/516,327).
`Notification of the First Office Action from Chinese Patent Office
`dates Sep. 8, 2006 for the corresponding Chinese patent application
`No. 200380 105267.7 (corresponding U.S. Appl. No. 10/536,471).
`Office Action issued from the Mexican Patent Office dated Feb. 22,
`2008 in connection with the corresponding Mexican Patent Applica
`tion No. PA/a/2004/011588 (corresponding U.S Appl. No.
`10/516,327).
`
`Office communication dated Jan. 12, 2007 issued from the European
`Patent Office for counterpart application No. 03734136.9-1246 (cor
`responding U.S. Appl. No. 10/516,327).
`Office communication dated Oct. 19, 2006 issued from the Mexican
`Patent Office for counterpart application No. PA/a/2004/011588
`(corresponding U.S. Appl. No. 10/516,327).
`Official communication issued from the European Patent Office
`dated Aug. 7, 2007 for the corresponding European patent applica
`tion No. 03759271.4-2412 (corresponding U.S. Appl. No.
`10/531,078).
`Second Office Action issued from the Chinese Patent Office on Jul.
`20, 2007 in connection with corresponding Chinese application No.
`2003801.01286.2 (corresponding U.S. Appl. No. 10/530.546).
`Specifications for2.3 GHz Band Portable Internet Service—Physical
`& Medium Access Control Layer, TTASKO-06.0082/R1, Dec. 2005.
`Third Office Action issued from the Patent Office of People's Repub
`lic of China dated Jan. 4, 2008 in corresponding Chinese Patent
`Application No. 2003.801.01286.2 (corresponding U.S. Appl. No.
`10/530,546).
`Translation of Office Action issued by Chinese Patent Office on Oct.
`19, 2007 in connection with the corresponding Chinese application
`No. 03814391.7 (corresponding U.S. Appl. No. 10/516,327).
`U.S. PTO Office Action mailed on Apr. 17, 2007 for the correspond
`ing U.S. Appl. No. 1 1/339,838, now U.S. Patent No. 7,230,935.
`U.S. PTO Office Action mailed on Jan. 24, 2007 for the correspond
`ing U.S. Appl. No. 1 1/339,838, now U.S. Patent No. 7,230,935.
`U.S. PTO Office Action mailed on Nov. 21, 2006 for the correspond
`ing U.S. Appl. No. 1 1/339,838, now U.S. Patent No. 7,230,935.
`U.S. PTO Office Action mailed on Nov. 6, 2006 for the corresponding
`U.S. Appl. No. 1 1/339,838, now U.S. Patent No. 7,230,935.
`Draft IEEE Standard for Local and Metropolitan Area Networks—
`Part 16: Air Interface for Fixed and Mobile Broadband Wireless
`Access Systems; Amendment for Physical and Medium Access Con
`trol Layers for Combined Fixed and Mobile Operation in Licensed
`Bands. IEEE P802.16, ED12. Oct. 2005.
`Office Action English translation dated Jul. 4, 2008 issued Chinese
`Patent Office for Application No. 03814391.7.
`Office Action English translation dated Jun. 29, 2009 issued from
`Japanese Patent Office for Application No. 2004-541532.
`Translation of Office Action in Japanese application 2004-515701,
`corresponding to U.S. Appl. No. 10/516,327, citing WO00050971,
`JP2000-031877, JP2002-033691, JP2002-111571 and JP11-127104,
`Dated Jun. 11, 2010.
`Translation of Office Action in Japanese application 2004-544751,
`corresponding to U.S. Appl. No. 10/531,078, citing WO00050971,
`JP2002-111571, JP05-102907, JP63-160442, JP2000-502218, JP 10
`032557 and JP2000-082983. Dated Oct. 16, 2009.
`Translation of Office Action in Japanese application 2004-565505,
`corresponding to U.S. Appl. No. 10/563,471, citing JP08-097762 and
`JP2001-11 1575. Dated Sep. 9, 2009.
`Translation of Office Action in Japanese application 2004-565505,
`corresponding to U.S. Appl. No. 10/563,471, citing JP08-097762,
`JP2001-111575, JP09-018484 and JP11-055713. Dated Oct. 7, 2010.
`Translation of Office Action in Japanese application 2004-565505,
`corresponding to U.S. Appl. No. 10/563,471, citing JP09-018484.
`Dated Mar. 26, 2010.
`Translation of Office Action in Korean application 2008-7026775,
`corresponding to U.S. Appl. No. 1 1/730,361, citing KR1006 10929
`Dated Aug. 30, 2010.
`Translation of Office Action in Japanese application 2009-503041,
`corresponding to U.S. Appl. No. 11/730,361, citing WO051 15022,
`JP10-135892, JP2005-531265, 2006-503481, JP2005-531202 AND
`JP2006-505146. Dated Oct. 26, 2010.
`Translation of Office Action in Korean application 2009-70 10639,
`corresponding to U.S. Appl. No. 12/439,018, citing WO01052447
`and US2004/0208.258, Dated Nov. 15, 2010.
`* cited by examiner
`
`DELL
`EXHIBIT 1033 - PAGE 4
`
`

`

`U.S. Patent
`
`Aug. 2, 2011
`
`Sheet 1 of 6
`
`US 7,990,904 B2
`
`Ol
`
`O2
`
`
`
`O5
`
`
`
`FIG. 1
`
`DELL
`EXHIBIT 1033 - PAGE 5
`
`

`

`U.S. Patent
`
`Aug. 2, 2011
`
`Sheet 2 of 6
`
`US 7,990,904 B2
`
`22O
`
`23O
`
`Half Duplex
`Repeater
`
`
`
`
`
`
`
`
`
`
`
`Processing
`
`Packet
`
`Packet
`
`243
`-
`
`244
`
`Ack
`
`IP Packet
`
`
`
`245
`
`Ack
`
`246
`
`FIG. 2
`
`DELL
`EXHIBIT 1033 - PAGE 6
`
`

`

`U.S. Patent
`
`Aug. 2, 2011
`
`Sheet 3 of 6
`
`US 7,990,904 B2
`
`2O
`
`Full Duplex
`Repeater
`
`250
`
`23O
`
`Station
`Station
`tatio
`
`AP
`AP
`
`Packet ? 22
`
`
`
`? 23 Ack
`
`Packet
`
`214
`
`-215
`
`Ack
`
`IP Packet
`m - m
`-\,
`
`ol
`
`FIG. 3
`
`DELL
`EXHIBIT 1033 - PAGE 7
`
`

`

`U.S. Patent
`
`Aug. 2, 2011
`
`Sheet 4 of 6
`
`US 7,990,904 B2
`
`
`
`RF Section
`
`Processor
`
`Full Duplex Repeater
`
`FIG. 4
`
`DELL
`EXHIBIT 1033 - PAGE 8
`
`

`

`U.S. Patent
`
`Aug. 2, 2011
`
`Sheet 5 of 6
`
`US 7,990,904 B2
`
`
`
`Processor
`
`Integrated Station
`
`Full Duplex Repeater
`
`FIG. 5
`
`DELL
`EXHIBIT 1033 - PAGE 9
`
`

`

`U.S. Patent
`
`Aug. 2, 2011
`
`Sheet 6 of 6
`
`US 7,990,904 B2
`
`601
`
`Start Initialization
`Indicate No Master AP
`
`
`
`
`
`
`
`
`
`
`
`Scan all channels for
`and build Scan Table
`containing, for each
`AP:
`Channel number
`MACAddress
`BSS D
`Received Power
`Receiver SNR
`
`
`
`
`
`Preferred AP
`Present? (MAC
`and BSS D
`
`Select a repeater
`channel,
`
`Endicate AP Found
`
`
`
`Start Transmission of
`Modified Beacons on
`Repeater Channel, and
`repeating function
`
`
`
`
`
`
`
`
`
`
`
`
`
`Indicate Preferred AP
`or Network Not
`Present
`
`Scan all channels for
`"Best" Beacon
`
`For Best Beacon,
`Store "Preferred AP'info:
`MACAddress
`BSS D
`Channel Number
`
`Repeater Configured
`Indicate Configured
`
`614
`
`AP Channel Change
`indication Received?
`
`Y
`
`
`
`TxModified Beacon
`on Repeater Channel
`with Channel new
`repeater Channel info
`
`N
`
`Preferred AP
`Gone?
`
`FIG. 6
`
`DELL
`EXHIBIT 1033 - PAGE 10
`
`

`

`1.
`WRELESS NETWORK REPEATER
`
`US 7,990,904 B2
`
`2
`avoid two or more nodes transmitting packets at the same
`time. Under the 802.11 standard protocol, for example, a
`distributed coordination function (DCF) may be used for
`collision avoidance.
`Such operation is significantly different than the operation
`of many other cellular repeater systems, such as those sys
`tems based on IS-136, IS-95 or IS-2000 standards, where the
`receive and transmit bands are separated by a deplexing fre
`quency offset. Frequency division duplexing (FDD) opera
`tion simplifies repeater operation since conflicts associated
`with repeater operation, Such as those arising in situations
`where the receiver and transmitter channels for all networked
`devices are on the same frequency, are not present.
`An additional complication arising from the use of repeat
`ers in WLAN environments is the random nature of data
`packet transmissions, which often occur in the various
`WLAN protocols. When a WLAN is functioning without
`centralized coordination as is typical, it is operating in accor
`dance with a DCF as noted above. In DCF operation, packets
`initiated from each node on the wireless network are gener
`ated spontaneously with no predictable receive and transmit
`slots. Several mechanisms may be used to avoid collisions
`associated with communication units transmitting packets at
`the same time. Some mechanisms, referred to as Carrier
`Sense Multiple Access with Collision Avoidance (CSMA/
`CA) and the Network Allocation Vector (NAV), are used by
`the distributed coordination function (DCF), governing the
`primary “rules' for enabling the coordination of the transmis
`sion of random packets from different stations. Because
`transmissions in Such an uncoordinated environment are
`unpredictable in that they may come at any time from any
`station, the challenge to repeater architectures is significant.
`An in addition to challenges associated with collisions, other
`challenges exist associated with, for example, feedback or the
`like on channels which are used by more than one repeater.
`Although traditional repeaters, such as those used in IS-95
`cellular systems, employ directional antennas and physical
`separation of receive and transmit antennas to achieve the
`necessary isolation to prevent oscillatory feedback, such a
`solution is not practical for WLAN repeaters. The combina
`tion of prohibitive costs and the fact that, for indoor environ
`ments, isolation is less effective because of reflections caused
`by objects in close proximity to the antennas, rule out Such
`solutions for indoor WLAN repeaters. Thus, several known
`approaches to providing repeaters in WLANs, and specifi
`cally to providing 802.11 compliant repeaters include provid
`ing two Access Points (APs) in a box with a routing function
`between them; and providing a store and forward repeater (SF
`Repeater), both of which approaches are reflected in products
`available on the market today.
`One system, described in International Application No.
`PCT/US03/16208, incorporated by reference herein, and
`commonly owned by the assignee of the present application,
`resolves many of the above identified problems by providing
`a repeater which isolates receive and transmit channels using
`a frequency detection and translation method. The WLAN
`repeater described therein allows two WLAN units to com
`municate by translating packets associated with one device at
`a first frequency channel to a second device using a second
`frequency channel. The direction associated with the transla
`tion or conversion, Such as from the first frequency channel
`associated with the first device to the second frequency chan
`nel associated with the second device, or from the second
`frequency channel to the first frequency channel, depends
`upon a real time configuration of the repeater and the WLAN
`environment. For example, the WLAN repeater may be con
`figured to monitor both frequency channels for transmissions
`
`CROSS REFERENCE TO RELATED
`APPLICATIONS
`
`This application is related to and claims priority from
`pending U.S. Provisional Application No. 60/433,171 filed
`Dec. 16, 2002, and is further related to PCT Application
`PCT/USO3/16208 entitled WIRELESS LOCALAREANET
`WORK REPEATER, the contents of which are incorporated
`10
`herein by reference.
`
`FIELD OF THE INVENTION
`
`The present invention relates generally to wireless local
`area networks (WLANs) and, particularly, the present inven
`tion relates to channel selection for a frequency translating
`repeater connecting to an Access Point (AP).
`
`15
`
`BACKGROUND OF THE INVENTION
`
`25
`
`30
`
`35
`
`40
`
`Because of increasing popularity, there is an ongoing need
`to extend the range of wireless local area networks (WLAN),
`including but not limited to WLANs described and specified
`in the 802.11, 802.16 and 802.20 standards. While the speci
`fications of products using the above standard wireless pro
`tocols commonly indicate data rates on the order of, for
`example, 11 MBPS and ranges on the order of for example,
`100 meters, these performance levels are rarely, if ever, real
`ized. Performance shortcomings between actual and speci
`fied performance levels have many causes including attenu
`ation of the radiation paths of RF signals, which are typically
`in the range of 2.4 GHz or 5.8 GHz in an operating environ
`ment such as an indoor environment. Base or AP to receiver or
`client ranges are generally less than the coverage range
`required in a typical home, and may be as little as 10 to 15
`meters. Further, in structures having split floor plans, such as
`ranch style or two story homes, or those constructed of mate
`rials capable of attenuating RF signals, areas in which wire
`less coverage is needed may be physically separated by dis
`tances outside of the range of, for example, an 802.11
`protocol based system. Attenuation problems may be exacer
`bated in the presence of interference in the operating band,
`such as interference from other 2.4 GHz devices or wideband
`interference with in-band energy. Still further, data rates of
`45
`devices operating using the above standard wireless protocols
`are dependent on signal strength. As distances in the area of
`coverage increase, wireless system performance typically
`decreases. Lastly, the structure of the protocols themselves
`may affect the operational range.
`One common practice in the mobile wireless industry to
`increase the range of wireless systems is through the use of
`repeaters. However, problems and complications arise in that
`for Some systems and devices, receivers and transmitters
`operate at the same frequency as in a WLAN (Wireless Local
`Area Network) or WMAN (Wireless Metropolitan Area Net
`work) utilizing, for example, 802.11 or 802.16 WLAN wire
`less protocols. In Such systems, when multiple transmitters
`operate simultaneously, as would be the preferred case in
`repeater operation, difficulties arise. Other problems arise in
`60
`that, for example, the random packet nature of typical WLAN
`protocols provides no defined receive and transmit periods.
`Because packets from each wireless network node are spon
`taneously generated and transmitted and are not temporally
`predictable packet collisions may occur. Some remedies exist
`to address such difficulties, such as, for example, collision
`avoidance and random back-off protocols, which are used to
`
`50
`
`55
`
`65
`
`DELL
`EXHIBIT 1033 - PAGE 11
`
`

`

`3
`and, when a transmission is detected, translate the signal
`received on the first frequency channel to the other frequency
`channel, where it is transmitted to the destination. It is impor
`tant to note that the frequency translating repeater described
`in International Application No. PCT/US03/16208 acts in
`near real time to receive, boost and retransmit packets and
`while addressing many of the problems in the art, lacks capa
`bilities such as store and forward.
`Not only does an isolated frequency translating repeater
`such as that described in International Application No. PCT/
`US03/16208 solve many of the above described issues asso
`ciated with asynchronous transmission, indeterminate packet
`length, and use of the same frequency for frequency trans
`mission/reception, but such repeaters are additionally well
`suited for use in accordance with the 802.11a, e.g. the 5 GHZ
`OFDM, standard which is currently the standard providing
`the highest data rate network, up to 54 MBPS, and the highest
`frequency, 5 GHz. While providing attractive data rate and
`frequency parameters, the 802.11a repeater is inherently lim
`ited in range. Problems arise due to the range limitations
`since, while many new applications involving video and
`audio are only possible using the higher performance avail
`able under 802.11a making the use of 802.11a compliant
`repeaters highly desirable, the range limitations hinder use
`fulness and limit widespread acceptance. Such limitations are
`disappointing since the 802.11a frequency bands are well
`suited for frequency translation for the above mentioned rea
`Sons, and due to the significant amount of allocated spectrum
`available for use within the band. It should be noted that there
`are presently 12 802.11a compatible frequency channels
`available in the US with another 12 planned for allocation by
`the FCC in the near future.
`It should further be noted that while frequency translating
`repeaters as described above are desirable, the application of
`frequency translating repeaters are not limited to systems
`compliant with 802.11a standards. For example, as is well
`known to those of ordinary skill in the art, 802.11b and
`802.11g are standards specifying transmission protocols for
`2.4 GHz systems. Products based on these standards may be
`used with repeaters in at least two ways. For example, in a
`bridging configuration, a repeater may use any combination
`of non-overlapping frequency channels such as channel 1, 6.
`and 11 for standard IEEE based networks. The use of adjacent
`channels is possible due to the ability to use directional anten
`nas in combination with the repeater, or a reduction in
`repeater transmission power. In the Basic Service Set (BSS)
`mode which is a common configuration mode for a typical
`AP