Abstract: Various exemplary embodiments relate to a method and related network node including one or more of the following: receiving a Diameter message at the DRA from an origin device; determining a received message type of the received Diameter message; determining an inverse message type based on the received message type; establishing an inverse message context object based on the inverse message type, wherein the inverse message context object provides access to a related Diameter message of the received Diameter message; processing the received Diameter message, wherein processing includes accessing the inverse message context object; and transmitting a message based on the processing.

Abstract: Various exemplary embodiments relate to a method and related network node including one or more of the following: obtaining a Diameter message to be transmitted to a client device, wherein the Diameter message includes a first Diameter identity; determining, based on a configuration of the Diameter device, that an alternate identity is to be presented to the client device; replacing the first Diameter identity with a second Diameter identity that is different from the first Diameter identity, based on the determination that an alternate identity is to be presented to the client device; and transmitting the Diameter message to the client device.

Abstract: Various exemplary embodiments relate to a method and related network node including one or more of the following: receiving a message; determining whether the network device should identify an entity associated with the message using a plurality of entity records, wherein each entity record of the plurality of entity records corresponds to an entity; if the network device should identify an entity associated with the message using the plurality of entity records: extracting at least one identification value; identifying a set of entity records as matching the at least one identification value; determining whether the set of entity records includes more than one entity record; and if the set of entity records includes more than one entity record: identifying a most current entity record that has been most recently modified, and processing the message as being associated with the entity to which the most current entity record corresponds.

Abstract: Various exemplary embodiments relate to a method and related network node including one or more of the following: receiving, at the network device, a message associated with an entity; determining that the message lacks at least one primary identification value used to identify the entity associated with the message; extracting at least one secondary identification value from the message; selecting a correlation rule of a plurality of correlation rules that matches the at least one secondary identification value, wherein each correlation rule of the plurality of correlation rules identifies a mapping between secondary identification values and primary identification values; identifying the at least one primary identification value based on the selected correlation; identifying the entity based on the at least one primary identification value.

Abstract: Various exemplary embodiments relate to a method and related network node including one or more of the following: receiving a Diameter message at the DRA from an origin device; determining a received message type of the received Diameter message; determining an inverse message type based on the received message type; establishing an inverse message context object based on the inverse message type, wherein the inverse message context object provides access to a related Diameter message of the received Diameter message; processing the received Diameter message, wherein processing includes accessing the inverse message context object; and transmitting a message based on the processing.

Abstract: Various exemplary embodiments relate to a method performed by a policy and charging rules node (PCRN) device. The method may include: establishing a first service data flow for an application function having a first Policy and Control Charging (PCC) rule including a first parameter within a session; receiving a request to upgrade the first parameter of the service data flow; generating a second PCC rule including an upgraded parameter; storing the first PCC rule in a cache; sending the second PCC rule to a Policy and Charging Enforcement Node (PCEN); receiving acknowledgement that the second PCC rule has been installed at the PCEN; receiving an indication that the second PCC rule failed at a downstream node; and sending the first PCC rule stored in the cache to the PCEN.

Abstract: Various exemplary embodiments relate to a method and related network node including one or more of the following: receiving, at the network device, a message associated with an entity; determining that the message lacks at least one primary identification value used to identify the entity associated with the message; extracting at least one secondary identification value from the message; selecting a correlation rule of a plurality of correlation rules that matches the at least one secondary identification value, wherein each correlation rule of the plurality of correlation rules identifies a mapping between secondary identification values and primary identification values; identifying the at least one primary identification value based on the selected correlation; identifying the entity based on the at least one primary identification value.