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Virtual network solution for sms message exchange between gsm and ansi (tia/eia 41) networksRelated Patent Categories: Telecommunications, Radiotelephone System, Zoned Or Cellular Telephone System, Space Satellite, Switching Or RoutingVirtual network solution for sms message exchange between gsm and ansi (tia/eia 41) networks description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070191003, Virtual network solution for sms message exchange between gsm and ansi (tia/eia 41) networks. Brief Patent Description - Full Patent Description - Patent Application Claims
[0001] This application is a continuation U.S. application Ser. No. 11/296,273, filed Dec. 8, 2005, now U.S. Pat. No. 7,203,507, which is a continuation of U.S. application Ser. No. 10/796,043, filed Mar. 10, 2004, now U.S. Pat. No. 7,013,156, which claims the benefit of U.S. Provisional Application No. 60/453,961, filed Mar. 13, 2003. All of these applications are incorporated herein by reference in their entireties. BACKGROUND [0002] 1. Field of the Invention [0003] The present invention relates generally to telecommunications systems. More particularly, the present invention is related to systems and methods for exchanging messages between disparate networks operating in accordance with different standards. [0004] 2. Background of the Invention [0005] The exchange of short message service (SMS) messages between distinct ITU GSM carriers has been supported by GSM standards almost since their inception. Specifically, GSM standards allow GSM PLMNs (Public Land Mobile Networks) to exchange (SMS) messages by way of roaming agreements. The technology permits one network element in a GSM PLMN to talk to other network elements in another GSM PLMN for the purpose of exchanging SMS messages. These messages are exchanged over what is called an SS7 or C7 network, which interconnects many mobile (and non-mobile) network elements. [0006] In North American and many other countries, however, there are many mobile networks that implement ANSI mobile telephony standards such as TDMA and CDMA. Although core network elements belonging to these networks are interconnected by an SS7 network, it is not easily possible to interconnect TDMA-, CDMA- and GSM-based carriers via a common SS7 network, due to standards-specific reasons. [0007] SMS messaging, a core component of the GSM standard, is also supported by TDMA and CDMA networks natively. However, due to inter-network connectivity issues and, in many instances, the of lack of roaming agreements between many of these networks, it is not presently possible to easily exchange messages between ITU GSM networks inter-connected via a C7 (ITU SS7) network and ANSI TDMA and CDMA networks connected to ANSI SS7 networks. [0008] Thus, there is a need to provide improved cross-network and cross-standards connectivity. BRIEF SUMMARY OF THE INVENTION [0009] The present invention provides improved connectivity by providing an Intermediary network solution whereby an Intermediary functions as a Virtual Carrier simulating many, if not all, of the necessary network element interfaces in each of the networks (GSM, TDMA, CDMA) to provide a sufficient framework for exchanging SMS messages among carriers operating in accordance with different standards. More specifically, a Virtual Network provider in accordance with the present invention functions as a Virtual GSM carrier on a C7 network and a Virtual ANSI network carrier (TDMA or CDMA) on an ANSI SS7 network, effectively bridging the networks to enable the sending and receiving of SMS messages. In one embodiment, the Intermediary functions as a Virtual carrier in one network and functions as a Relaying Intermediary for other networks for the purpose of exchanging SMS messages. [0010] These and other features of the present invention, and their attendant advantages, will be more fully appreciated upon reading the following detailed description in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS [0011] FIG. 1 shows a GSM Network element model for SMS messages in accordance with the prior art. [0012] FIG. 2 shows inter-PLMN connectivity for GSM SMS message Delivery between two GSM networks in accordance with the prior art. [0013] FIG. 3 shows a model to receive SMS messages from a GSM network by an Intermediary for further transmission to ANSI carriers in accordance with the present invention. [0014] FIG. 4 shows a store and forward call flow control for an ITU GSM carrier to an ANSI carrier in accordance with the present invention. [0015] FIGS. 5 and 6 show alternative call flow control for an ITU GSM carrier to an ANSI carrier in accordance with the present invention. [0016] FIG. 7 shows a network model for terminating messages into a ITU GSM Carrier network from an Intermediary network represented by SME in accordance with the present invention. [0017] FIG. 8 shows call flow control for delivering a message to a GSM network in accordance with the present invention. [0018] FIG. 9 shows a realization of a virtual network within an Intermediary network in accordance with the present invention. DETAILED DESCRIPTION OF THE INVENTION [0019] The following acronyms are used in the following description and the associated drawings: [0020] AuC Authentication Center [0021] BSC Base Station Controller [0022] BSS Base Station System [0023] BTS Base Transceiver Station [0024] CdPA Called Party Address [0025] CgPA Calling Party Address [0026] DPC Destination Point Code used for MTP addressing [0027] EIR Equipment Identity Register [0028] GMSC Gateway MSC [0029] GTT Global Title Translation [0030] HLR Home Location Register [0031] IMSI International Mobile Subscriber Identity [0032] IWMSC Interworking Mobile Switching Center [0033] IXLR Intermediary Location Register (virtual HLR) [0034] IXRS Intermediary Receiving Station (virtual MSC) [0035] Ix-SC Intermediary Service Center [0036] IXTS Intermediary Transmitting Station (GMSC) [0037] MO Message Origination--Originating in a GSM carrier and terminating into Intermediary network for delivery to any US carrier (GSM, TDMA, CDMA) [0038] MS Mobile Station [0039] MSC Mobile Switching Center [0040] MT Message Termination--Message terminating into a non-US carrier. [0041] OPC Originating Point Code [0042] SME Short Message Entity [0043] SMSC Short Message Service Center [0044] SPC Signaling Point Code [0045] SSN Sub-system Number used for identifying an application [0046] STP Signal Transfer Point [0047] VGW-MSC Virtual Gateway MSC [0048] VLR Visitor Location Register [0049] FIG. 1 shows a GSM Network element model for SMS messages. In accordance with well-known standards, all mobile originated messages from a network are routed to a "home" SMSC (Short Message Service Center) 100 through an Inter-working MSC network element 110. SMSC 100 then forwards the message to its destination, whether it is an application or another subscriber unit. Generally speaking, all Mobile Terminated messages are delivered through an MSC to a mobile station through a Gateway MSC unit 120. As per the GSM model, an SMSC is not necessarily a network element directly connected to an SS7 network, although in practice an SMSC is typically built with a GMSC component and, in fact, often is directly connected to an SS7 network. The other elements shown in FIG. 1 are well-known to those skilled in the art. Continue reading about Virtual network solution for sms message exchange between gsm and ansi (tia/eia 41) networks... Full patent description for Virtual network solution for sms message exchange between gsm and ansi (tia/eia 41) networks Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Virtual network solution for sms message exchange between gsm and ansi (tia/eia 41) networks patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. 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