Abstract: The invention relates to policy information transfer in 3GPP networks. A Policy Decision Point (PDP) that deals with more than one Policy Enforcement Point (PEP) has a table associating IP addresses with PEPs so that it knows what PEP to send the policy information to. The invention also provides methods for keeping the table updated and transferring the information to the right PEP, and a protocol that is used for messages from the PEP to the PDP.

Abstract: A system and unified method of address resolution in an IP-based network. A Resolver determines whether an input address is a URL/URI, and if so, extracts a domain name. If the input address is an E.164 number, the Resolver converts the E.164 number into a domain name in ENUM format. The Resolver then sends a domain name query to a DNS which, if able, returns the IP address for either a Global MGCF or a destination server along with a supported Application protocol. If the DNS is unable to perform the translation, or the Application protocol returned is not supported by the requesting application, the Resolver sends a domain name query to an extended Location Server (LS) to obtain an IP address of a gateway function capable of interfacing with the destination server.

Abstract: A method in a 3G.IP network of routing a call from an originating subscriber in an originating network to a mobile terminating subscriber roaming in a visited network, the mobile terminating subscriber having a home network that maintains location information for the mobile terminating subscriber. When the originating subscriber sends a call origination message to a gatekeeper in the originating network, the gatekeeper obtains location information from the home network for the mobile terminating subscriber. An IP address of a media gateway in the visited network (MGW1) is then obtained and provided to a media gateway in the originating network (MGW2). The IP address of MGW2 is then sent to the originating subscriber. Thereafter, the call is routed from the originating subscriber through MGW2 in the originating network directly to MGW1 in the visited network. An MSC Server in the visited network then routes the call to the mobile terminating subscriber.

Abstract: The mechanism for providing services to a terminal user includes identifying at least one service to be offered to the terminal user. Each of the identified services are then linked to a corresponding Hyper Text Terminal Protocol Uniform Resource Identifier (HTTP URI). A list is built for all linked HTTP URIs, and the list is forwarded to the terminal user. The terminal receives the list in the form of an incoming message, the incoming message comprising the HTTP URIs corresponding to services being offered to the user. The terminal displays the HTTP URIs, and obtains the user's selection. Then, the terminal activates the HTTP URI corresponding to the user's selection.

Abstract: A Call State Control Function (CSCF) and method of processing a call to a called mobile station (MS). The method is performed in all of the CSCFs in a third generation Internet Protocol (3G.IP) network. When an incoming call setup message such as a Fast Setup or Location Request message is received in the CSCF, the CSCF first determines with a relationship function, whether the CSCF is the Home CSCF for the called MS. If so, a first set of call processing steps are performed. If the CSCF is not the Home CSCF, the CSCF determines if it is currently serving the called MS. If the CSCF is the Serving CSCF, a second set of call processing steps are performed. If the CSCF is neither the Home CSCF nor the Serving CSCF for the called MS, a third set of call processing steps are performed.

Abstract: In the context of a completed inter-exchange handoff of a mobile station communication, an anchor exchange may request certain call related information from a currently serving exchange. This request is made through use of an inter-exchange information request message issued from the anchor exchange and sent (perhaps through one or more tandem exchanges) to the serving exchange. Responsive thereto, the serving exchange processes the request, obtains the requested call related information, and returns the requested information in an inter-exchange information request return result message. The information request message may comprise a newly defined ANSI-41 message, a vendor proprietary extension to the ANSI-41 message set, or an enhancement to an existing ANSI-41 message.

Abstract: A Home Location Server (HLS) and method of processing an incoming real-time call to a Mobile Station (MS) in a hybrid radio telecommunications network having both second generation (2G) and third generation (3G) service nodes. When a request for location information for the called MS is received in the HLS from an interrogating switch where the incoming call originated, the HLS determines whether the called MS is located in a 2G Mobile Switching Center (MSC), or a 3G Call State Control Function (CSCF). If neither, the HLS concludes that the called MS is located in an Serving General Packet Radio Service (GPRS) Support Node (SGSN). A 3G flag, which is set in the subscriber profile when the MS registers with a 3G SGSN, is checked to determine whether the SGSN is a 2G SGSN or a 3G SGSN. If the SGSN is a 2G SGSN, the HLS informs the interrogating switch that the MS is not available for the real-time call.

Abstract: The invention relates to policy information transfer in 3GPP networks. A Policy Decision Point (PDP) that deals with more than one Policy Enforcement Point (PEP) has a table associating IP addresses with PEPs so that it knows what PEP to send the policy information to. The invention also provides methods for keeping the table updated and transferring the information to the right PEP, and a protocol that is used for messages from the PEP to the PDP.

Abstract: A system and method of ensuring a requested Quality of Service (QoS) for a media flow that is transported through multiple transport networks. An interface is established between a Call State Control Function (P-CSCF) and a Bandwidth Broker (BB) for the passing of a session description and Binding Information from the P-CSCF to the BB. The interface uses the Common Open Policy Service (COPS) protocol and the Bandwidth Broker (BB) protocol. The Binding Information may be the source IP address plus Real Time Protocol (RTP) port and the destination IP address plus RTP port. The Binding Information is also passed back toward the Originating BB (BB-O) from a Serving BB (BB-S) in the terminating (serving) network through BBs in adjacent networks using the BB protocol.

Abstract: Using session signaling, a multimedia session with plural media data streams is initiated between the mobile terminal and a remote host coupled to a packet data network. The mobile terminal is coupled to the packet data network and to a multimedia system that provides multimedia session services by way of an access point. A plurality of packet access bearers is established between the mobile terminal and the access point to transport corresponding ones of the media data streams between the mobile terminal and the access points. The media binding information is created for each media data stream. The media binding information associates each media data stream in the session to one of the media packet access bearers and is used to provide session-based control of each of the media packet access bearers. Different example techniques for generating/providing the media information are disclosed.

Abstract: A hybrid Media Gateway Control Function (MGCF) implemented in a 3G wireless telecommunications network that provides access to multimedia services and IP networks for a mobile terminal operating in a circuit-switched (CS) mode. The hybrid MGCF includes a CS-specific signaling mechanism that exchanges CS-specific control signaling with a radio access network (RAN) serving the mobile terminal, and a SIP signaling mechanism that exchanges SIP control signaling with a Call State Control Function (CSCF) that accesses multimedia services for the mobile terminal. A converter in the hybrid MGCF converts the CS-specific control signaling into SIP control signaling, and sends the SIP signaling to the SIP signaling mechanism. A switching control function within the hybrid MGCF controls a Media Gateway (MGW) to route media payload from the RAN to destinations such as multimedia IP networks.

Abstract: In the context of a completed inter-exchange handoff of a mobile station communication, an anchor exchange may request certain call related information from a currently serving exchange. This request is made through use of an inter-exchange information request message issued from the anchor exchange and sent (perhaps through one or more tandem exchanges) to the serving exchange. Responsive thereto, the serving exchange processes the request, obtains the requested call related information, and returns the requested information in an inter-exchange information request return result message. The information request message may comprise a newly defined ANSI-41 message, a vendor proprietary extension to the ANSI-41 message set, or an enhancement to an existing ANSI-41 message.

Abstract: A system and unified method of address resolution in an IP-based network. A Resolver determines whether an input address is a URL/URI, and if so, extracts a domain name. If the input address is an E.164 number, the Resolver converts the E.164 number into a domain name in ENUM format. The Resolver then sends a domain name query to a DNS which, if able, returns the IP address for either a Global MGCF or a destination server along with a supported Application protocol. If the DNS is unable to perform the translation, or the Application protocol returned is not supported by the requesting application, the Resolver sends a domain name query to an extended Location Server (LS) to obtain an IP address of a gateway function capable of interfacing with the destination server.