Abstract: The present solution relates to a method in a source serving gateway (207a) for triggering relocation of at least one user equipment bearer resource from the source serving gateway (207a) to at least one target serving gateway (207b) in a communication network (200). The source serving gateway (207a) serves the user equipment (203) by providing bearer resources to the user equipment (203). The source serving gateway (207a) detects (501) an event indicating relocation of the at least one user equipment bearer resource from the source serving gateway (207a) to the at least one target serving gateway (207b). Furthermore, the source serving gateway (207a) sends (502) a message to a mobility management node (205, 209). The message comprises a trigger to relocate the at least one user equipment bearer resource from the source serving gateway (207a) to the at least one target serving gateway (207b).

Abstract: Embodiments of the invention include a method for providing UE session resilience performed in a first PDN-GW that is coupled to a second PDN-GW, which are both in a PDN-GW pool. The method provides UE session resilience by allowing the first PDN-GW to provide connectivity for UE sessions previously serviced by the second PDN-GW after the second PDN-GW becomes non-operational. The first PDN-GW recognizes that the second PDN-GW failed and then activates a plurality of standby UE sessions. Each standby UE session is a backup UE session corresponding to a previously active UE session serviced on the second PDN-GW. Each standby UE session is associated with a UE device and a network resource identifier of an APN slice. The first PDN-GW transmits a message to a SGW that is servicing the UE sessions that indicates that the SGW should direct traffic previously bound for the second PDN-GW to the first PDN-GW.

Abstract: A gateway node is configured to act as a gateway of a core network to one or more external Packet Data Networks, PDNs, and configured to provide connectivity for radio terminals served by the first gateway node to one or more of the PDNs, and configured to exchange information with one or more other network gateway nodes to provide a network gateway pool. The method comprises: obtaining pool information comprising information indicative of the external PDNs being served by each gateway node in the gateway pool to enable distribution of Packet Data Network, PDN, connections among the gateway nodes in the gateway pool, blocking at least one external PDN served by the first gateway node for creation of new PDN connections to the external PDN, and forwarding any creation of a new PDN connection for the blocked external PDN to a second gateway node in the gateway pool.

Abstract: A mobility management node (120, 125), arranged to serve a User Equipment, UEs (130) in a Public Land Mobile Network, a PLMN, also arranged to have an interface towards a Serving Gateway, an SGW (115). The mobility management node (120, 125) is arranged to, upon reception of one or more predefined messages from a UE (130) or in case of a change of mobility management node and/or PLMN for the UE (130), send a message to the SGW (115), comprising information on the maximum Quality of Service for the UE (130) allowed by the mobility management node (120, 125) and information on the subscribed Quality of Service for the UE (130), the mobility management node (120, 125) being arranged to receive a response message from the SGW (115), and to, as a result of the response message, implement a limitation of the UEs (130) Quality of Service.

Abstract: Embodiments of the invention include a method for providing UE session resilience performed in a first PDN-GW that is coupled to a second PDN-GW, which are both in a PDN-GW pool. The method provides UE session resilience by allowing the first PDN-GW to provide connectivity for UE sessions previously serviced by the second PDN-GW after the second PDN-GW becomes non-operational. The first PDN-GW recognizes that the second PDN-GW failed and then activates a plurality of standby UE sessions. Each standby UE session is a backup UE session corresponding to a previously active UE session serviced on the second PDN-GW. Each standby UE session is associated with a UE device and a network resource identifier of an APN slice. The first PDN-GW transmits a message to a SGW that is servicing the UE sessions that indicates that the SGW should direct traffic previously bound for the second PDN-GW to the first PDN-GW.

Abstract: Embodiments of the invention include a method for providing UE session resilience performed in a first PDN-GW that is coupled to a second PDN-GW, which are both in a PDN-GW pool. The method provides UE session resilience by allowing the first PDN-GW to provide connectivity for UE sessions previously serviced by the second PDN-GW after the second PDN-GW becomes non-operational. The first PDN-GW recognizes that the second PDN-GW failed and then activates a plurality of standby UE sessions. Each standby UE session is a backup UE session corresponding to a previously active UE session serviced on the second PDN-GW. Each standby UE session is associated with a UE device and a network resource identifier of an APN slice. The first PDN-GW transmits a message to a SGW that is servicing the UE sessions that indicates that the SGW should direct traffic previously bound for the second PDN-GW to the first PDN-GW.

Abstract: A serving gateway support node for a radio telecommunications network, in which the serving gateway support node is arranged to control at least one serving gateway to connect user equipment to a packet-based network via a home gateway and is also arranged to cause each serving gateway to hand over the connections between the user equipment and the packet-based network to other serving gateways while maintaining the user equipment's connection to the packet-based network as the user equipment roam throughout the radio telecommunications network, in which the serving gateway support node is arranged to detect a loss of connectivity The serving gateway support node is arranged to re-establish the connection from the user equipment to the packet-based data network via a serving gateway and a home gateway without interrupting the connection of the user equipment to the packet-based network.

Abstract: A mobility management node (120, 125), arranged to serve a User Equipment, UEs (130) in a Public Land Mobile Network, a PLMN, also arranged to have an interface towards a Serving Gateway, an SGW (115). The mobility management node (120, 125) is arranged to, upon reception of one or more predefined messages from a UE (130) or in case of a change of mobility management node and/or PLMN for the UE (130), send a message to the SGW (115), comprising information on the maximum Quality of Service for the UE (130) allowed by the mobility management node (120, 125) and information on the subscribed Quality of Service for the UE (130), the mobility management node (120, 125) being arranged to receive a response message from the SGW (115), and to, as a result of the response message, implement a limitation of the UEs (130) Quality of Service.

Abstract: Embodiments of the invention include a method for providing UE session resilience performed in a first PDN-GW that is coupled to a second PDN-GW, which are both in a PDN-GW pool. The method provides UE session resilience by allowing the first PDN-GW to provide connectivity for UE sessions previously serviced by the second PDN-GW after the second PDN-GW becomes non-operational. The first PDN-GW recognizes that the second PDN-GW failed and then activates a plurality of standby UE sessions. Each standby UE session is a backup UE session corresponding to a previously active UE session serviced on the second PDN-GW. Each standby UE session is associated with a UE device and a network resource identifier of an APN slice. The first PDN-GW transmits a message to a SGW that is servicing the UE sessions that indicates that the SGW should direct traffic previously bound for the second PDN-GW to the first PDN-GW.

Abstract: Embodiments of the invention include a method for providing UE session resilience performed in a first PDN-GW that is coupled to a second PDN-GW, which are both in a PDN-GW pool. The method provides UE session resilience by allowing the first PDN-GW to provide connectivity for UE sessions previously serviced by the second PDN-GW after the second PDN-GW becomes non-operational. The first PDN-GW recognizes that the second PDN-GW failed and then activates a plurality of standby UE sessions. Each standby UE session is a backup UE session corresponding to a previously active UE session serviced on the second PDN-GW. Each standby UE session is associated with a UE device and a network resource identifier of an APN slice. The first PDN-GW transmits a message to a SGW that is servicing the UE sessions that indicates that the SGW should direct traffic previously bound for the second PDN-GW to the first PDN-GW.

Abstract: The present solution relates to a method in a source serving gateway (207a) for triggering relocation of at least one user equipment bearer resource from the source serving gateway (207a) to at least one target serving gateway (207b) in a communication network (200). The source serving gateway (207a) serves the user equipment (203) by providing bearer resources to the user equipment (203). The source serving gateway (207a) detects (501) an event indicating relocation of the at least one user equipment bearer resource from the source serving gateway (207a) to the at least one target serving gateway (207b). Furthermore, the source serving gateway (207a) sends (502) a message to a mobility management node (205, 209). The message comprises a trigger to relocate the at least one user equipment bearer resource from the source serving gateway (207a) to the at least one target serving gateway (207b).

Abstract: Example embodiments presented herein are directed towards a S4 Serving General Packet Radio Service Support (S4-SGSN) node, and method, for radio resource management. Specifically, the S4-SGSN may be configured to restrict or reject a Packet Data Protocol (PDP) activation or a PDP modification procedure based on a Quality of Service (QoS) analysis.

Abstract: A method for a cellular communications system (100) with a user (UE, 110) and a hierarchy of nodes between a UE (110) and an external network (150). The hierarchy comprises at least first (125) and second (130) nodes, and there can be a plurality of connections between the UE (110) and the network (150) via data channels (160) between the nodes, and plurality of data containers (170) with data regarding the data channels. A connection between a UE (110) and the external network (150) can be inactivated whilst the corresponding data container (170) is preserved, and an inactivated connection can be reactivated by the external network (150). When a connection is to be reactivated, the second node (130) utilizes information from the external network (150) in order to reactivate the data channel or channels which is/are concerned and which have had their data containers (170) preserved.

Abstract: Embodiments of the invention include a method for providing UE session resilience performed in a first PDN-GW that is coupled to a second PDN-GW, which are both in a PDN-GW pool. The method provides UE session resilience by allowing the first PDN-GW to provide connectivity for UE sessions previously serviced by the second PDN-GW after the second PDN-GW becomes non-operational. The first PDN-GW recognizes that the second PDN-GW failed and then activates a plurality of standby UE sessions. Each standby UE session is a backup UE session corresponding to a previously active UE session serviced on the second PDN-GW. Each standby UE session is associated with a UE device and a network resource identifier of an APN slice. The first PDN-GW transmits a message to a SGW that is servicing the UE sessions that indicates that the SGW should direct traffic previously bound for the second PDN-GW to the first PDN-GW.

Abstract: Example embodiments presented herein are directed towards a S4 Serving General Packet Radio Service Support (S4-SGSN) node, and method, for radio resource management. Specifically, the S4-SGSN may be configured to restrict or reject a Packet Data Protocol (PDP) activation or a PDP modification procedure based on a Quality of Service (QoS) analysis.

Abstract: A solution in a telecommunications infrastructure network for creating a secondary PDP context for a time critical application, ensuring that no packets are lost by masquerading a primary PDP context as the secondary PDP context. This may be achieved by for instance sending a fake TEID or including a filter in a PDP creation request for the secondary PDP context and updating the GGSN with a correct TEID or a new Traffic Flow Template (TFT) when the secondary PDP context is established.

Abstract: A serving gateway support node (9) for a radio telecommunications network (1), in which the serving gateway support node (9) is arranged to control at least one serving gateway (7) in the radio telecommunications network (1) to connect user equipment (2) to a packet-based network (4) via a home gateway (8) and is also arranged to cause each serving gateway (7) to hand over the connections between the user equipment (2) and the packet-based network (4) to other serving gateways (7) in the radio telecommunications network (1) whilst maintaining the user equipment's (2) connection to the packet-based network (4) as the user equipment (2) roam throughout the radio telecommunications network (1), in which the serving gateway support node (9) is arranged to detect a loss of connectivity between the user equipment (2) and the home gateway (8) or between the serving gateway support node (9) and a serving gateway (7), the serving gateway support node (9) is arranged to re-establish the connection from the user equipme

Abstract: A method for a cellular communications system (100) with a user (UE, 110) and a hierarchy of nodes between a UE (110) and an external network (150). The hierarchy comprises at least first (125) and second (130) nodes, and there can be a plurality of connections between the UE (110) and the network (150) via data channels (160) between the nodes, and plurality of data containers (170) with data regarding the data channels. A connection between a UE (110) and the external network (150) can be inactivated whilst the corresponding data container (170) is preserved, and an inactivated connection can be reactivated by the external network (150). When a connection is to be reactivated, the second node (130) utilizes information from the external network (150) in order to reactivate the data channel or channels which is/are concerned and which have had their data containers (170) preserved.

Abstract: A solution in a telecommunications infrastructure network for creating a secondary PDP context for a time critical application, ensuring that no packets are lost by masquerading a primary PDP context as the secondary PDP context. This may be achieved by for instance sending a fake TEID or including a filter in a PDP creation request for the secondary PDP context and updating the GGSN with a correct TEID or a new Traffic Flow Template (TFT) when the secondary PDP context is established.

Abstract: A system node, and method in a radio telecommunication network for efficiently serving non-compliant mobile terminals (UE/MSs) and core network (CN) nodes without negatively affecting features available to compliant UE/MSs and nodes. A network service node such as an SGSN sends a standardized message to a UE/MS or CN node a reduced number of times while awaiting a response. If a proper response is not received, the SGSN removes “known problem” optional and/or conditional information elements from the message and sends an altered message to the UE/MS or CN node one or more times while awaiting a response. If the UE/MS or CN node responds to the altered message, it receives service with a reduced feature set. The SGSN may store an ID of the UE/MS or CN node in a list of non-compliant UE/MSs or CN nodes. In future sessions, the SGSN may send only the altered message to the UE/MS or CN node.