US20010009852A1 - Cellular call processor having concurrent instances of call models to support mixed media communication connections - Google Patents
Cellular call processor having concurrent instances of call models to support mixed media communication connections Download PDFInfo
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- US20010009852A1 US20010009852A1 US09/803,860 US80386001A US2001009852A1 US 20010009852 A1 US20010009852 A1 US 20010009852A1 US 80386001 A US80386001 A US 80386001A US 2001009852 A1 US2001009852 A1 US 2001009852A1
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- call
- communication system
- cellular communication
- mobile subscriber
- subscriber station
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
Abstract
Description
- This application is a division application of U.S. patent application Ser. No. 09/123,179, filed Jul. 27, 1998 and titled “Cellular Call Processor Having Concurrent Instances of Call Models to Support Mixed Media Communication Connections”.
- This invention relates to cellular communication systems and, in particular, to a cellular call processing system that uses multiple concurrently active instances of call models to process calls that comprise mixed media communications connections.
- The problem with existing cellular communication systems is that they support either a voice only or a data only communication application. In addition, the existing cellular communication systems are not adapted to handle multiple media connections or simultaneous communication connections to multiple endpoints. Therefore, the existing cellular communication systems are not adapted to the communications needs of customers who are equipped with modern communication terminal devices.
- The above described problems are solved and a technical advance achieved by the present cellular call processor that uses multiple concurrently active instances of call models to process calls that comprise mixed media communications connections. The cellular call processor processes each of the media components of the mixed media communication connection in an independent, yet coordinated manner. Thus, each of the media components of the mixed media communication connection can be processed in an efficient media-specific manner and even directed to different destinations. The cellular call processor can implement this capability in a plurality of ways, one of which is to maintain the existing voice call model and create a new call model for each of the other call components in a media-specific manner. Alternatively, multiple instances of the same call model can be used, with each call component being served by a separate instance of the call processing code. Same set of call processing codes also could have multiple call models, instances of different call models could be run from the same set of codes. Communications among the various instances of the call models occur only at the call setup and release, and the call models can be implemented in the same physical network element or can be implemented in separate network elements that are customized for the type of call component being processed.
- FIG. 1 illustrates in block diagram form the overall architecture of the present cellular call processor having concurrent instances of call models to support mixed media communication connections;
- FIG. 2 illustrates in block diagram form the overall network architecture of a cellular communication system that incorporates the present cellular call processor having concurrent instances of call models to support mixed media communication connections; and
- FIG. 3 illustrates in flow diagram form the operation of the cellular communication system that incorporates the present cellular call processor having concurrent instances of call models to support mixed media communication connections.
- FIG. 2 illustrates in block diagram form the overall network architecture of a cellular communication system (using CDMA technology as but one example of the present system concept) that incorporates the present cellular call processor having concurrent instances of call models to support mixed media communication connections. The
cellular communication system 300A is connected to both acircuit network 300B and a packet network 300C to thereby interconnect subscribers that are served by this collection of networks. Thecellular communication system 300A comprises a number of components that serve to locate, identify and provide communication services for a plurality of mobile subscriber stations (such as mobile subscriber station 311) that are operational in the radio coverage area of thecellular communication system 300A. In particular, a Mobile Switching Center (MSC) 302 serves at least one and more typically a plurality ofbase stations 301. Eachbase station 301 is interconnected with a plurality of cell sites C1-C7 that are equipped with the wireless transmitters and receivers that provide the wireless communication links to the mobile subscriber stations, such as mobile subscriber station 311, that are operational in the radio coverage area of the cell site C1. A Selection/Distribution Unit (SDU) 303 is provided to manage the frame selection and multiplexing functions of the radio channel allocation in the cell sites C1-C7 and implement the call direction function. Finally, thedata interworking function 306 functions as an interface between thecellular communication system 300A and a data transport network, such as the Internet 307. The collection of elements used to implement thecellular communication system 300A illustrated in FIG. 2 can be implemented as separate units, interconnected via a data communication switching element, such as Asynchronous TransferMode switching system 304, or can be combined into a lesser number of components. - In this cellular communication system, the SDU303 is the entity that communicates with the Mobile Switching Center 302 via the industry standard IS-634 A1 signaling messages.
Base station 301 is the origination and termination point for all air interface signaling layer 3 messages and is also the entity responsible for providing the air interface with the mobile subscriber stations 311. Thebase station 301 comprises two components:radio control component 301 A andchannel management component 301 B. The processing of call originations and call terminations between the mobile subscriber stations 311 and thecellular communication system 300A are well known in concept and defined by signaling standards that are promulgated by various industry standards organizations. The specific details of such call and signal processing are disclosed herein only to the extent necessary to understand the concepts of the present cellular call processor. - FIG. 1 illustrates in block diagram form the overall architecture of the present cellular call processor having concurrent instances of call models to support mixed media communication connections. In particular, the case where the cellular communication connection comprising a voice and data call is illustrated. The cellular call processor, in the sense used herein, comprises a number of cooperatively operative processes101-103 that are located in the various components of the
cellular communication system 300A described above. The cellular call processor can be implemented in various ways, and the particular implementation disclosed herein is selected to be illustrative of the concept of the invention and is not intended to limit the applicability of the concept to other implementations that represent variations of this concept. - The cellular call processor comprises processes101-103 that execute in the
various components cellular communication system 300A illustrated in FIG. 2. The most pertinent ones of these processes comprise the call model 101 extant in thebase station 301 and implemented inradio control component 301 A; the call model 102 extant in theswitch control process 302B in themobile switching center 302; and the call model 103 extant in themobility management process 302A in themobile switching center 302. Each of these processes 101-103 is an existing cellular communication process found in cellular communication systems. The present cellular call processor replicates these processes by creating multiple instances of the processes to thereby process each call component independently, yet have the multiple call components of a communication connection cooperatively processed. - The typical cellular call instance is where a mobile subscriber at a mobile subscriber station311 initiates a voice cellular call in the traditional manner. The cellular call processor initiates a
first instance 101A-103A of each of the call models 101-103 that are used to establish the cellular communication connection. Thefirst instance 101A-103A of each call model uses the standard call model, since the call that was originated was a voice call. The call appearance is also given a reference ID that comprises an identification indicia that is associated with this call appearance. The reference ID is maintained in themobile switching center 302, but is also stored in the mobile subscriber station 311. - During the establishment of this call, or after the basic voice call is established, the mobile subscriber activates mixed media communication service. This mixed media communication service can be any combination of the types of media (loosely termed data) communications and/or voice communications, including, but not limited to: E-Mail upload, WEB surfing, file transfers, analog or digital fax, packet telephone, graphics, video, additional voice calls, and the like. The mobile subscriber station311 can direct the mixed media communications to a
single destination 307 where the various data connections are managed independent of thecellular communication network 300A or the subscriber can individually route the mixed media communication components todifferent destinations station 312, while there is a concurrently active data file transfer operation underway via the Internet 307 that is independent of the mixed media conference. Furthermore, E-Mail transfers can be executing as a background process on the Internet connection. Thus, the mobile subscriber can manage what is presently viewed as multiple communication connections in a single cellular communication session. The management of these multiple call components is effected by the use of multiple instances of call models. For example, in the case where the subscriber at mobile subscriber station 311 requests a data communication connection to the Internet 307, the reference ID for this call appearance is used to activate a second instance of thecall models 101B-103B to thereby process the data call component of this call connection. The second instance of thecall models 101B-103B can be identical to the first instance of thecall models 101A-103A, or they can be customized versions of the first instance of thecall models 101A-103A to specifically process data calls. - FIG. 3 illustrates in flow diagram form the operation of the
cellular communication system 300A that incorporates the present cellular call processor having concurrent call models to support mixed media communication connections. Atstep 401, the mobile subscriber at mobile subscriber station 311 initiates a voice cellular call in a well known fashion. The mobile subscriber station 311 initiates radio communication with thebase station 301 via one or more of the serving cell sites C1. Atstep 402, a fundamental radio channel in the radio communication spectrum is allocated to this call instance and, in the case of CDMA communications, a predefined code is allocated for this communication connection. Thebase station 301 comprises two components:radio control component 301A andchannel management component 301B. Thechannel management component 301B manages the assignment of radio communication channels to mobile subscriber station 311 and the maintenance of these communication channels as the mobile subscriber station 311 moves among the cell sites C1-C7. Therefore, thecall model 101A in theradio control component 301A allocates the resources necessary to implement the communication connection atstep 402. Thecall model 101A defines the originating party, subscriber locator encoder, the CDMA code for the communication channel, and the radio link protocol. Atstep 403, thebase station 301 forwards control signals to themobile switching center 302 indicative of the call origination that was initiated by mobile subscriber station 311. - The
mobile switching center 302 determines the authorization of the mobile subscriber station to obtain the requested service atstep 404 by accessing the Home Location Register (HLR) 302C. The nature of the media requested by the call can also be determined by use of thehome location register 302C. In particular, the subscriber provision number that is stored in thehome location register 302C can be used to define the modes of communication that are available for the mobile subscriber. The subscriber provision number can define the call as voice only, voice/data, data only, or any type of mixed media. In addition, the subscriber provision number can be used to identify the mode of originating and receiving these call components, such as automatic extension of service on an incoming call component within the set of authorized types of call components. Atstep 405, themobile switching center 302 verifies the authorization of the mobile subscriber station 311 to receive the requested service and atstep 406 activates thecall control component 302A to initiate a communication connection viaswitch 302B to the identified destination,subscriber 312. This communication connection is effected atstep 407 bymobility management component 302A activating a first instance ofcall model 102A to process the extension of the call origination to the identified destination. In addition,switch 302B activates a first instance ofcall model 103A to originate the communication connection and associated signaling to Public Switched Telephone Network (PSTN) 305 to extend the call connection to the identified destination, telephone station set 312. - In the case where the mobile subscriber at mobile subscriber station311 additionally initiates a data communication connection, of one or more of the types noted above, at
step 408, thecall control component 301A atstep 409 instantiates a second instance of thecall model 101B (call processing process) to process this newly received request. The second instance of thecall model 101B can be either identical to the first (voice) instance ofcall model 101A, or can be customized to correspond to the nature of the media destined to be transmitted over the newly allocated channel. For instance, one way to process a data call is to allocate supplemental radio channel(s) on demand. In either case, the call processing for the second instance of thecall model 101 B proceeds as described above with respect to the first instance ofcall model 101A in terms of operation of thebase station 301 and themobile switching center 302. In particular, thebase station 301 atstep 410 forwards control signals to themobile switching center 302 indicative of the call origination that was initiated by mobile subscriber station 311. Themobile switching center 302 obtains data regarding the authorizations of the mobile subscriber station 311 atstep 411 and atstep 412 themobile switching center 302 verifies the authorization of the mobile subscriber station 311 to receive the requested service and atstep 413 activates themobility management component 302A to initiate a communication connection viaswitch 302B. This communication connection is effected atstep 414 byswitch 302B activating asecond instance 102B of thecall model 102A that was used to implement the original voice communication connection to the subscriber at telephone station set 312. Additionally, themobility management component 302A initiates asecond instance 103B of thecall model 103A that was used to implement the original voice communication connection to the subscriber at telephone station set 312. These second instances of the call models signaldata interworking component 306 via theATM switch 304 to extend the call connection to the identified destination,terminal device 313 via a data transport network, such as theInternet 307. Thus, the two call components can be directed to different destinations. - In the case where the multiple call components are directed to a single destination, the issue of coordination of voice and data calls is addressed via the use of the reference ID of the originating subscriber. The reference ID is the identification associated with a call appearance and is maintained by the
mobile switching center 302, but this data is also stored in the mobile subscriber unit independent of the call model instance. When a communication connection is established through thecellular communication system 300A, the reference ID of the originating subscriber is forwarded along with the call origination control messages. The mobile number is the key identified in mobile systems and the associated call identification data defines the type of service. Thus, when a call arrives atdestination 312 after the original communication connection is established, the reference ID of the originating subscriber provides an indication that the presently arriving and the already established communication connections are associated and should be concurrently implemented. - There are a number of alternative modes of establishing mixed media communication connections that are variations of the above-described example. The subscriber can initiate a data communication connection, then request the establishment of a concurrently active voice call connection. The subscriber can also receive a voice call connection while presently active on a data communication connection. Each of these additional examples represent alternative modes that can be addressed by the above-described cellular call processor concept using the multiple instances of call models as described above.
- The cellular call processor processes each of the media components of the mixed media communication connection in an independent, yet coordinated manner. Thus, each of the media components of the mixed media communication connection can be processed in an efficient media-specific manner and even directed to different destinations. The cellular call processor can implement this capability in a plurality of ways, one of which is to maintain the existing voice call model and create a new call model for each of the other call components in a media-specific manner. Alternatively, multiple instances of the same call model can be used, with each call component being served by a separate instance of the call processing code.
Claims (26)
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US09/803,860 US6434382B2 (en) | 1998-07-27 | 2001-03-12 | Cellular call processor having concurrent instances of call models to support mixed media communication connections |
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US09/123,179 US6285877B1 (en) | 1998-07-27 | 1998-07-27 | Cellular call processor having concurrent instances of call models to support mixed media communication connections |
US09/803,860 US6434382B2 (en) | 1998-07-27 | 2001-03-12 | Cellular call processor having concurrent instances of call models to support mixed media communication connections |
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US09/123,179 Division US6285877B1 (en) | 1998-07-27 | 1998-07-27 | Cellular call processor having concurrent instances of call models to support mixed media communication connections |
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US6434382B2 US6434382B2 (en) | 2002-08-13 |
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US09/803,860 Expired - Lifetime US6434382B2 (en) | 1998-07-27 | 2001-03-12 | Cellular call processor having concurrent instances of call models to support mixed media communication connections |
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Cited By (1)
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US6842621B2 (en) * | 2001-12-21 | 2005-01-11 | Motorola, Inc. | Method and apparatus for splitting control and media content from a cellular network connection |
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US6560216B1 (en) * | 1998-09-17 | 2003-05-06 | Openwave Systems Inc. | Data network computing device call processing |
FI105964B (en) * | 1998-12-16 | 2000-10-31 | Nokia Networks Oy | A method for managing mobile communications |
US6625198B1 (en) * | 1999-08-13 | 2003-09-23 | Qualcomm Incorporated | Method and apparatus for concurrently processing multiple calls in a spread spectrum communications system |
US6625153B1 (en) * | 1999-09-08 | 2003-09-23 | Lucent Technologies Inc. | Distributed cellular communication system architecture for the co-existence of multiple technologies |
US7466741B2 (en) | 2000-03-03 | 2008-12-16 | Qualcomm Incorporated | Method and apparatus for concurrently processing multiple calls in a spread spectrum communications system |
US20020077107A1 (en) * | 2000-10-13 | 2002-06-20 | Arbinet-Thexchange, Inc. | Method and system for automatic selection of wireless carriers |
WO2002049298A1 (en) | 2000-12-14 | 2002-06-20 | Powerhouse Technology, Inc. | Circuit switched cellulat network to internet calling |
US7206744B2 (en) * | 2001-12-14 | 2007-04-17 | Sbc Technology Resources, Inc. | Voice review of privacy policy in a mobile environment |
US20040229647A1 (en) * | 2003-05-14 | 2004-11-18 | Mr. George Simmons | Cellular Communication Computer Intranet Internet Interface Design |
EP1782640B1 (en) * | 2004-07-16 | 2012-04-04 | Bridgeport Networks | Presence detection and handoff for cellular and internet protocol telephony |
WO2010147837A2 (en) | 2009-06-17 | 2010-12-23 | Bridgeport Networks, Inc. | Enhanced presence detection for routing decisions |
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US5537436A (en) * | 1993-06-14 | 1996-07-16 | At&T Corp. | Simultaneous analog and digital communication applications |
US5487175A (en) * | 1993-11-15 | 1996-01-23 | Qualcomm Incorporated | Method of invoking and canceling voice or data service from a mobile unit |
US6023474A (en) * | 1996-11-22 | 2000-02-08 | Sprint Communications C.O.L.P. | Broadband telecommunications system interface |
US5970416A (en) * | 1996-07-31 | 1999-10-19 | Motorola | Provision of distributed call handling over a plurality of network nodes |
US6028892A (en) * | 1996-08-15 | 2000-02-22 | Jrc Canada | Voice band-based data transmission system |
US5838768A (en) * | 1996-10-03 | 1998-11-17 | Telefonaktiebolaget L M Ericsson | System and method for controlled media conversion in an intelligent network |
US5901352A (en) * | 1997-02-20 | 1999-05-04 | St-Pierre; Sylvain | System for controlling multiple networks and associated services |
US6112084A (en) * | 1998-03-24 | 2000-08-29 | Telefonaktiebolaget Lm Ericsson | Cellular simultaneous voice and data including digital simultaneous voice and data (DSVD) interwork |
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- 2001-03-12 US US09/803,860 patent/US6434382B2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6842621B2 (en) * | 2001-12-21 | 2005-01-11 | Motorola, Inc. | Method and apparatus for splitting control and media content from a cellular network connection |
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US6285877B1 (en) | 2001-09-04 |
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