System and method for enabling a vehicular access network in a

US008514825B1
(12) United States Patent
(10) Patent N0.2
Addepalli et a].
(54)
(45) Date of Patent:
SYSTEM AND METHOD FOR ENABLING A
5,763,862 A
VEHICULAR ACCESS NETWORK IN A
,
_
,
ay oe
6,078,652 A
6/2000 Barak
1/2001 Kaib
1/2001 Beckert et al.
g}
’
(Us); Raghuram s- sudhaakar’
Sunnyvale, CA (U S); Christian Ibars
1531411110111 e? a:- 1
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9r esa ml e a '
6,484,082 B1
C asas, Celra (ES); Pere Monclus, San
Jose’ CA (Us)
11/2002 ~M1llsap et a1.
(comlnued)
FOREIGN PATENT DOCUMENTS
10146664 A1
2/2003
DE
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Assignee: Cisco Technology, Inc., San Jose, CA
1337119 A
(Us)
_
(*)
8/2003
_
(Cont1nued)
_
Not1ce:
garlvesten
12/1999 Bishop et al.
6,169,387 B1
6,175,789 B1
(US); Lillian Lei Dai, Rockville, MD
(US); Flavio Bonomi, Palo Alto, CA
(73)
If;
6,002,929 A
Inventors: Sateesh K. Addepalli, San Jose, CA
(US); Rodolfo A. Milito, Los Gatos, CA
Aug. 20, 2013
6/ 1998 JachimoWicZ et al.
2
VEHICULAR ENVIRONMENT
(75)
US 8,514,825 B1
_
_
_
OTHER PUBLICATIONS
Subject to any disclaimer, the term of th1s
patent is extended or adjusted under 35
Ibars et a1, Radio Resource Allocation for a High Capacity Vehicular
U.S.C. 154(1)) by 199 days.
Access Network, IEEE, 5 pages, 2011.*
(21) Appl. NO.Z 13/118,024
(Continued)
(22)
Filed:
May 27, 2011
Primary Examiner * Frank Duong
(74) Attorney, Agent, or Firm * Patent Capital Group
(60)
Related US. Application Data
Provisional application No. 61/433,138, ?led on Jan.
(57)
14, 201 1 _
A method includes joining a vehicular access netWork (VAN)
comprising cooperative communication between a plurality
of on-board units (OBU) in respective vehicles, scanning the
(51) IIlt- ClH04 W 4/00
(52)
(2009-01)
VAN to pick up a coverage of at least one infrastructure access
US. Cl.
point (IAP), Which operates on a control channel in a radio
access tree RAT comP risin g a P lurali W ofcells, listening to
a channel allocation information from the IAP that includes a
USPC ........................................................ .. 370/338
(58)
ABSTRACT
Field of Classi?cation Search
USPC ........................ .. 370/310, 312*315, 3284350
request for a mobile cell gateway (MCG) at a nominal loca
See application ?le for complete search history.
tion in the RAT, and sending a candidacy message to the at
References Cited
include establishing the VAN in a highway, and in urban
areas, aggregating tra?ic in a cell and transmitting to the IAP
via the MCG, and other features.
least one IAP to become an MCG. Certain embodiments
(56)
U.S. PATENT DOCUMENTS
6/1995 Fyfe et a1.
5,428,666 A
5,604,787 A
20 Claims, 34 Drawing Sheets
2/1997 KotZin et a1.
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US 8,514,825 B1
Page2
(56)
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* cited by examiner
US. Patent
Aug. 20, 2013
Sheet 1 0134
US 8,514,825 B1
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Sheet 9 0f 34
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FIG. 1 1
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SESSIONS
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US. Patent
Aug. 20, 2013
Sheet 10 0f 34
US 8,514,825 B1
FIG. 12B
200
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(km)
FIG. 12C
250 —
200 —
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US. Patent
Aug. 20, 2013
Sheet 11 0134
US 8,514,825 B1
FIG. 12D
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US. Patent
Aug. 20, 2013
Sheet 12 0134
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Aug. 20, 2013
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Sheet 16 0f 34
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