Abstract: Disclosed is a method for use in a process of selective catalytic reduction (SCR) after-treatment of an exhaust gas of an exhaust gas stream, where the process comprises the reduction of nitrogen oxides of the exhaust gas stream through the use of a reducing agent derived from an additive. The disclosed method comprises: defining an integrand to be the difference between the rate of injection of the additive and the rate of evaporation of the additive to the reducing agent multiplied by a coefficient (s), wherein the value of the coefficient (s) is between zero and one; producing an integral controller output proportional to the integral of the integrand with time; requesting a countermeasure based on the integral controller output to counteract solid deposits derived from the additive.

Abstract: Disclosed is a method for use in a process of selective catalytic reduction (SCR) after-treatment of an exhaust gas of an exhaust gas stream, where the process comprises the reduction of nitrogen oxides of the exhaust gas stream through the use of a reducing agent derived from an additive. The disclosed method comprises: defining an integrand to be the difference between the rate of injection of the additive and the rate of evaporation of the additive to the reducing agent multiplied by a coefficient (s), wherein the value of the coefficient (s) is between zero and one; producing an integral controller output proportional to the integral of the integrand with time; requesting a countermeasure based on the integral controller output to counteract solid deposits derived from the additive.

Abstract: The present invention relates to a method for adaption of an exhaust treatment system arranged for treating an exhaust stream produced by an engine, where the exhaust treatment system includes at least a first additive dosage device, a first selective catalytic reduction catalyst arranged downstream of the first additive dosage device, a second additive dosage device arranged downstream of the first selective catalytic reduction catalyst, and a second selective catalytic reduction catalyst arranged downstream of the second additive dosage device. The method includes initiating an adaption of the second selective catalytic reduction catalyst, and controlling, during the adaption of the second selective catalytic reduction catalyst, the first additive dosage device to inject additive in accordance with at least one injection rule being designed for the adaption.

Abstract: Systems and methods for dynamically causing a terminal to change audio codec modes during a session with another terminal. In one aspect, the terminal is forced use to switch to a more resilient audio codec mode when the quality of wireless channel being used by the terminal deteriorates below a threshold.

Abstract: A method for testing an application running on an electronic device includes parsing, by a test processor, a state model of the application representing relationships among a plurality nodes, each node representing an application state. The method further includes parsing, by the test processor, a test implementation file including a plurality of commands for manipulating at least one of the application and the electronic device, each of the plurality of commands associated with respective ones of the plurality of nodes, traversing, by the test processor, the state model of the application by selecting for testing an application node in accordance with the node relationships in the state model. The method also includes selecting, by the test processor, one or more of the plurality of commands for testing the application based on at least one criteria, and executing, by the test processor, the one or more selected commands.

Abstract: Systems and methods for dynamically causing a terminal to change audio codec modes during a session with another terminal. In one aspect, the terminal is forced use to switch to a more resilient audio codec mode when the quality of wireless channel being used by the terminal deteriorates below a threshold.

Abstract: A method for testing an application running on an electronic device includes parsing, by a test processor, a state model of the application representing relationships among a plurality nodes, each node representing an application state. The method further includes parsing, by the test processor, a test implementation file including a plurality of commands for manipulating at least one of the application and the electronic device, each of the plurality of commands associated with respective ones of the plurality of nodes, traversing, by the test processor, the state model of the application by selecting for testing an application node in accordance with the node relationships in the state model. The method also includes selecting, by the test processor, one or more of the plurality of commands for testing the application based on at least one criteria, and executing, by the test processor, the one or more selected commands.

Abstract: A signalling proxy system for a switching center server is provided, as well as a method of operating a signalling proxy system for a switching center server. The signalling proxy system comprises two signalling proxies for routing signalling traffic between a network node and a plurality of switching center server units. Each signalling proxy is addressable by an address code and is operable in one of an active state and a passive state towards the network node.

Abstract: Apparatus configured to operate within a communication network as a pool proxy, routing signalling traffic between a node of a first network and one of a set of pooled nodes within a second network. The apparatus is further configured to operate in one of an active state and a passive state towards the first network node and, when in said active state to send a heartbeat signal to at least one of said pooled nodes for relaying to a peer pool proxy and, when in said passive state, to receive a heartbeat signal from a peer pool proxy relayed via at least one of said pooled nodes. In the event that no heartbeat signal is received when in the passive state, the apparatus is configured to activate itself as pool proxy towards the first network node.

Abstract: A method of updating routing tables stored at a multiplicity of Signaling End Points (SEPs) of an SS7 over IP signaling network following the introduction of a new SEP into the network. The new SEP sends a message to an existing SEP, the message identifying an IP address and SS7 address(es) of the new SEP. The existing SEP adds the IP address and SS7 address(es) of the new SEP to the routing table(s) stored at the existing SEP, and forwards the message to other SEPs identified in the routing table(s) at the existing SEP. The other SEPs add the IP address and SS7 address(es) of the new SEP to their routing tables. Each SEP that receives the message sends a response message to the new SEP containing the IP and SS7 addresses of the responding SEP, and the new SEP populates its routing table(s) using the contents of the response messages.

Abstract: Apparatus configured to operate within a communication network as a pool proxy, routing signalling traffic between a node of a first network and one of a set of pooled nodes within a second network. The apparatus is further configured to operate in one of an active state and a passive state towards the first network node and, when in said active state to send a heartbeat signal to at least one of said pooled nodes for relaying to a peer pool proxy and, when in said passive state, to receive a heartbeat signal from a peer pool proxy relayed via at least one of said pooled nodes. In the event that no heartbeat signal is received when in the passive state, the apparatus is configured to activate itself as pool proxy towards the first network node.

Abstract: A signalling proxy system for a switching center server is provided, as well as a method of operating a signalling proxy system for a switching center server. The signalling proxy system comprises two signalling proxies for routing signalling traffic between a network node and a plurality of switching center server units. Each signalling proxy is addressable by an address code and is operable in one of an active state and a passive state towards the network node.

Abstract: A method of providing charge information to a user of a mobile terminal (2), which information relates to an IP connection or connections being used by the user. The method comprises the steps of identifying the terminal (2) or the user to a charge control node (CCN) (10) located in a home network (1) of the terminal (2) or user and, for the duration of the IP connection(s), using the existing connection or one of the existing connections to transport a stream of charge information messages from the CCN (10) to the mobile terminal (2).

Abstract: A method of enabling charging information generated within a GPRS access network 4 to be associated with charging information generated within an IP Multimedia Core Network Subsystem, IMSS, the charging information relating to a multimedia call facilitated by the IMSS and carried by the GPRS network. The method comprises sending a SIP call identity from the IMSS to the GPRS network and/or a GPRS charging identity from the GPRS network to the IMSS. A received identifier is included in charging information messages generated by one or both of the GPRS network and the IMSS.

Abstract: The present invention relates in general to communication networks and more specifically to a system and a method for charging in a communication network, especially in an IP Multimedia network. The new charging system allows charging principles used in traditional telecom networks to be applied also in IP Multimedia networks.

Abstract: A method of updating routing tables stored at a multiplicity of Signalling End Points of an SS7 over IP signalling network following the introduction of a new Signalling End Point into the network, the method comprising sending a message from the new Signalling End Point to an existing Signalling End Point, the message identifying an IP address and SS7 address(es) of the new Signalling End Point, updating the routing table(s) stored at said existing Signalling End Point with the new address information, forwarding said message from said existing Signalling End Point to other Signalling. End Points identified in the routing table(s) at said existing Signalling End Point, and updating the routing tables at said other Signalling End Points upon receipt of said messages.

Abstract: A method of reallocating charges relating to one or more connections from a first subscriber 1 of a mobile telecommunications network 1 to a second subscriber 2 of that or a different mobile telecommunications network. The method comprises temporarily linking the accounts of the two subscribers maintained in the or each associated Cost Control Node 9,16, receiving at the Cost control Node 9,16 associated with the first subscriber, real time charging messages according to the CAMEL protocol, and allocating the charging messages to the account of the second subscriber including, if necessary, transferring the charging messages to the Cost control Node 17 associated with the second subscriber.

Abstract: The present invention provides a mechanism for coordinating charging for a multimedia session between a mobile terminal and a remote host on both an application/session level and on an IP/access bearer level. The multimedia session is established over a radio access network via a packet-switched access network coupled to a multimedia system. The multimedia system has one or more multimedia servers for providing multimedia services for multimedia sessions. A token associated with the multimedia session is generated and used to correlate session charges for operations performed in the packet-switched access network and for operations performed in the multimedia system.