Abstract:
Apparatuses and methods for a wireless communication device having a first Subscriber Identity Module (SIM) and a second SIM to manage communication via the first SIM and the second SIM, the method includes, but not limited to, setting up an Internet Protocol (IP) Multimedia Subsystem (IMS) Packet Data Network (PDN) connection over the first SIM, registering at least the second SIM to the IMS via the IMS PDN connection set up over the first SIM, and setting up communications for at least the second SIM over the IP-CAN session set up over the first SIM. The IMS PDN connection comprises a default Evolved Packet-Switched System (EPS) bearer set up over the first SIM and an IP Connectivity Access Network (IP-CAN) session set up over the first SIM
Abstract:
The invention relates to a method for enabling relocation of a function for processing data packets of a flow associated with a device. The method is performed in an arrangement of a communication system, which is allocated as a proxy for control messages exchanged between an instance of the function for processing the data packets of the flow and a control instance controlling how the function processes the data packets of the flow. The method comprises obtaining (920) information indicating that the function for processing the data packets is relocated from a first instance to a second instance. The method further comprises forwarding (930) control messages received from the control instance to the second instance of the function for processing the data packets and vice versa, in response to the obtained information.
Abstract:
Methods and apparatus are provided for inter-RAT bearer change for the 3GPP network. In one novel aspect, a bearer termination procedure is performed upon detecting one or more triggering events for the inter-RAT bearer modification. In one embodiment, the UE established the 4G EPS bearer. The UE successfully performs a bearer change from 4G to 3G. Subsequently, the UE detects missing mandatory parameters during inter-RAT bearer change from 3G to 2G in an idle state. The UE performs bearer termination by releasing the PDP context. In one embodiment, the PDP context is locally released. In other embodiments, the UE explicitly releases bearer using the PDP context deactivation procedure. The locally released procedure can be triggered by the UE, or by the network, or by both the UE and the network. The explicitly PDP context release procedure can be triggered by the UE, or by the network, or by both the UE and the network.
Abstract:
The present disclosure relates to a method performed in a source gateway 33a which is logically positioned in a first wireless access network 32 between a radio device 31 and a first mobility anchor 37. The source gateway comprises a Multipath Transmission Control Protocol (MPTCP) proxy 34 for a TCP flow 30 between the radio device and a peer 39. The TCP flow comprises at least two subflows between the radio device and the source gateway. The subflows comprises a first subflow 30a over the first wireless access network and a second subflow 30b over a second wireless access network 35. The method comprises receiving uplink data of the second subflow from a second gateway 36c logically positioned in the second wireless access network between the radio device and a second mobility anchor 37, and sending downlink data of the second subflow to said second gateway. The method also comprises moving the proxy from the source gateway to a target gateway 33b logically positioned in the first wireless access network between the radio device and the first mobility anchor, as part of a handover of the radio device within the first wireless access network. The method also comprises, after having moved the proxy to the target gateway, forwarding downlink data of both the first and second subflows to the target gateway, and forwarding the received uplink data of the second subflow to the target gateway.
Abstract:
An LTE network (100, 300, 400) having a plurality of base stations (110, 320, 420) and S-GWs (120, 340, 440) processes GTP packets to determine an amount of GTP tunnels (140, 382, 491-492) between the base stations (110, 320, 420) and the S-GWs (120, 340, 440). The LTE network (100, 300, 400) processes the amount of GTP tunnels (140, 382, 491-492) to determine a target amount of LTE P-GWs (130, 350, 450) to serve the base stations (110, 320, 420). If the target amount of the LTE P-GWs (130, 350, 450) is greater than a current amount of the LTE P-GWs (130, 350, 450), then an additional amount of virtual LTE P-GWs (130, 350, 450) is implemented to serve the base stations (110, 320, 420). If the target amount of the LTE P-GWs (130, 350, 450) is less than the current amount of the LTE P-GWs (130, 350 450) then an amount of the virtual LTE P-GWs (130, 350, 450) that serve the base stations (110, 320, 420) are removed.