Method and apparatus for supporting SIP/IMS-based femtocells

44 Pages·2013·2.81 MB·English

US 20090067417A1
(19) United States
(12) Patent Application Publication (10) Pub. No.: US 2009/0067417 A1
Kalavade et al. (43) Pub. Date: Mar. 12, 2009
(54) METHOD AND APPARATUS FOR Publication Classi?cation
SUPPORTING SIP/IMS-BASED FEMTOCELLS
(51) Int. Cl.
H04L 12/66 (2006.01)
(75) Inventors: AsaWaree Kalavade, Stow, MA (52) U.S. Cl. ...................................................... .. 370/356
(US); Eric E. Bomarsi,
(57) ABSTRACT
Northborough, MA (U S); Jonathan
A. Morgan, Groton, MA (U S); A femtocell is integrated into a core network so as to securely
Lawrence A. Palmer, Harvard, MA and ef?ciently deliver one or more mobile services to an end
(Us) user on an existing mobile device over a broadband connec
tion. This integration can be into a basic Internet Protocol
(IP)-based network, or an IMS-based network. In an illus
Correspondence Address:
trated embodiment, a femtocell is integrated to a SIP- or
FULBRIGHT & JAWORSKI L.L.P
IMS-based network using a “convergence” server. The con
2200 ROSS AVENUE, SUITE 2800
vergence server preferably is a SIP-based ?xed mobile con
DALLAS, TX 75201-2784 (US)
vergence (FMC) application server that provides an all-IP
approach to core network integration for femtocells. The
(73) Assignee: TATARA SYSTEMS, INC., Acton, convergence server provides a number of hi gh level functions
MA (Us) including secure access of an end user mobile device into the
core network through the femtocell (which involves authen
(21) App1.No.: 12/172,23s ticating the femtocell as well as a speci?c end user mobile
device), single number voice and messaging services (by
updating an end user’s location to be the femtocell), mobility
(22) Filed: Jul. 13, 2008 (to support handover between the femtocell and macro cell
networks), delivery of supplementary services (such as call
waiting, call hold, caller ID, three-way calling, and the like)
Related U.S. Application Data
on the femtocell network, and the delivery of new and
(60) Provisional application No. 60/949,846, ?led on Jul. advanced services (such as home landline routing, mobile TV,
14, 2007. multimedia downloads and the like).
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Patent Application Publication Mar. 12, 2009 Sheet 1 0f 33 US 2009/0067417 A1
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