Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
1998-12-31
2002-10-01
Maung, Nay (Department: 2681)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S450000, C455S460000
Reexamination Certificate
active
06459908
ABSTRACT:
TECHNICAL FIELD
The present invention relates to a method and system for supporting cellular calling features in a system using wireline invocation codes (LSSGR).
BACKGROUND ART
Generally, communication systems have been introduced which integrate wireless communication networks, such as a personal communication system (PCS), with existing wireline communication networks. In such systems, structure is provided for interfacing the capabilities of a land line telephone system with a radio link communications system, and to control the provision of private network service features for users of both radio link systems and land line systems. Call processing data associated with each subscriber is stored in a central service control point, or database, within the network. Call routing to either a land line or a wireless unit is controlled by a mobile controller network element in conjunction with the central database. Known systems can typically support all the services unique to each of the wireline telephone network and the wireless network using a single directory number and a central database.
One such arrangement is known as a Generic C architecture. In a Generic C architecture, delivery of wireline features to wireless access systems is supported without requiring a Mobile Switching Center (MSC) network element. However, it would also greatly enhance system capability if wireless features such as provided by the IS-53 protocol were also supported by a Generic C architecture. To date, no such system satisfies such a demand.
In addition, subscribers who roam into a Generic C network will not necessarily have knowledge of the Generic C architecture and will expect services to conform to the IS-53 protocol instead of a LSSGR protocol as utilized by an Access Manager (AM) in a Generic C architecture. Further yet, a market may exist for subscribers who prefer IS-53 services over LSSGR services. Therefore, a need exists for a Generic C architecture capable of transparently supporting IS-53 protocol in addition to the normal wireline LSSGR protocol.
DISCLOSURE OF THE INVENTION
It is therefore an object of the present invention to provide a method and system for supporting IS-53 wireless services in a Generic C integrated wireline and wireless communication system.
It is another object of the present invention to provide an integrated wireless/wireline telecommunications services utilizing feature code translation on a SCP platform in order to support IS-53 wireless services as well as LSSGR wirleine services.
It is yet another object of the present invention to provide a Generic C integrated wireless/wireline telecommunication system capable of supporting IS-53 services by utilizing a subscriber profile to connect a call to an MSC platform for IS-53 feature and call control.
In carrying out the above objects and other objects, features, and advantages of the present invention, a method and system are provided for transparently supporting a wireless service protocol in a Generic C integrated wireless and wireline network which includes maintaining a database containing user profile information indicative of mobile transceiver unit service registration status in a wireless location register associated with each of a plurality of geographic coverage areas. When an incoming call is received at a wireless access manager, a query is generated for the wireless location register for instructions on how to process the call. The wireless location register determines whether the user requires wireless service protocol processing based on the user profile, and generates special handling instructions in response thereto. In accordance with a first aspect of the present invention, the special handling instructions comprise translating the call feature coding into a wireline service protocol utilized by the Generic C communication system. In accordance with another aspect of the present invention, the wireless location register instructs the access manager to forward the call to a wireless system mobile switching center for call handling and routing to the wireline network.
More specifically, in accordance with one embodiment of the present invention, a Generic C architecture is provided with the capability of supporting common cellular system IS-53 wireless features in addition to the wireline LSSGR features otherwise provided by either translating wireless invocation codes to wireline invocation codes, or directing call processing to a dedicated mobile switching center (MSC) arranged to process IS-53 protocol. Feature code translation is performed in a wireless system location register (WSLR) to enable transparent IS-53 feature code support on a CLASS 5 wireline switch equipped with LSSGR features. Alternatively, upon inquiry from an access manager (AM), the WSLR directs the AM to route the call to the dedicated MSC for IS-53 code processing.
The above objects and other objects, features and advantages of the present invention are readily apparent from the following detailed description of the best mode for carrying out the invention when taken in connection with the accompanying drawings.
REFERENCES:
patent: 5353331 (1994-10-01), Emery et al.
patent: 5506887 (1996-04-01), Emery et al.
patent: 5901359 (1999-05-01), Malmstrom
patent: 6073029 (2000-06-01), Smith et al.
patent: 6097966 (2000-08-01), Hanley
patent: 6104928 (2000-08-01), Waugh
Cook Charles I.
Smith Dennis C.
Brooks & Kushman P.C.
Maung Nay
Qwest Communications International Inc.
Trinh Sonny
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