A user equipment and a method for a multi-Subscriber Identity Module (multi-SIM) operation are provided. The method includes registering to a first network associated with a first Subscriber Identity Module (SIM) and a second network associated with a second SIM; determining whether a paging collision associated with the first network and the second network is detected; and initiating a paging collision resolution procedure associated with a selected network to resolve the paging collision after the paging collision is detected, where the selected network is the first network or the second network.

Systems, methods, apparatuses, and computer program products for user equipment (UE) context duplication. In certain embodiments, when a UE may resume at a target network node within its configured radio area, a duplication of a UE context may occur at the target network node, and the target network node may allocate an additional/secondary identifier to the UE. The secondary identifier may indicate the UE's identity within the network. When configured with a secondary identifier, the UE may retain an original/primary identifier assigned by the anchor network node. The anchor network node may retain the UE context and may maintain user plane connectivity to a core network. The UE may use this primary identifier for operations within the configured radio area, whereas the secondary identifier may be used when resuming operations to a cell that is outside of the configured radio area.

When a mobile station requests circuit services notifications through a packet switched network, a mobile switching center sets a forwarding indicator. When the MSC detects an event indicative of a change in the status of the mobile station, the MSC sends an event notification to the packet switched network if the forwarding indicator is set to true. In the packet switched network, the base station can use the event notifications to manage communication resources used for packet data communications with the mobile station.

In accordance with an example embodiment of the present invention, there is provided an apparatus comprising a transceiver configured to support operation of the apparatus in accordance with a first radio access technology, RAT, and a second radio access technology, RAT, the transceiver being configured to receive an indication conveyed over the second radio access technology, the indication indicating that data is incoming to the apparatus and that the data is to be conveyed over the first radio access technology, and at least one processing core configured to, responsive to the indication, cause the apparatus to receive the data by operating in accordance with the first radio access technology.

In accordance with an example embodiment of the present invention, there is provided an apparatus comprising a transceiver configured to support operation of the apparatus in accordance with a first radio access technology, RAT, and a second radio access technology, RAT, the transceiver being configured to receive an indication conveyed over the second radio access technology, the indication indicating that data is incoming to the apparatus and that the data is to be conveyed over the first radio access technology, and at least one processing core configured to, responsive to the indication, cause the apparatus to receive the data by operating in accordance with the first radio access technology.

Embodiments of the present invention provide a method for controlling a multimode radio communications system, a control server, and a terminal. The method includes: establishing, by the control server, a basic link between the terminal and any one communications system in the multimode radio communications system according to first settings; selecting, by the control server according to second settings, a communications system from the multimode radio communications system as a service communications system for transmission of each service of the terminal; and sending, by the control server, control information to the terminal on the basic link, where the control information is used to indicate the service communications system for transmission of each service of the terminal. The embodiments of the present invention improve a utilization rate of radio resources and user experience in a multimode radio communications environment.

This disclosure relates to systems, apparatuses, and methods for coordinating communication and avoiding and/or mitigating collisions for multi-subscriber identity module devices in a wireless communication system. A wireless device may coordinate communication associated with different subscriber identity modules and/or may mitigate collisions between communications associated with different subscriber identity modules. A network may provide information to improve coordination and/or mitigate collisions. A network may adjust paging schedules and/or provision of alert messages to improve coordination.

A user equipment (UE) operating in a communication system comprising a base station and one or more UEs. The UE may be configured to operate on or “camp” on two different networks with one radio. In this exemplary system, the radio may be normally connected to the first network (NW1) and may from time to time be “tuned away” from NW1 to a second network (NW2). The UE may inform NW1 that it has tuned away to another network, e.g., using start and end indicators. This information may prevent NW1 from wasting downlink capacity by unnecessarily allocating downlink resources to the UE during the tune-away. Alternatively, or in addition, this information may prevent NW1 from penalizing the UE, e.g., by reducing its future downlink allocations, since the UE does not respond to NW1 commands during the tune-away.

Provided are an information transmission method and a device. The method includes receiving, by a first core network element, a first message. The first message is used to notify the first core network element that a N3GPP access is unavailable or that a terminal is in an idle state over the N3GPP access. If there is downlink data arriving at the first core network element, the method further includes transmitting, by the first core network element, the downlink data via a 3GPP access, discarding the downlink data, or delaying transmission of the downlink data.

A communications method, device, and system for solving the connection and communications efficiency problem due to the presence of a large number of cells. The method comprises: a first local controller determines that a user equipment needs to establish a data bearer; data bearer configuration information for transmitting user data is generated; the data bearer configuration information is transmitted to a first local gateway and/or at least a first small base station, so that the network element entity that has received the data bearer configuration information establishes a data transmission channel according to the data bearer configuration information, the user equipment belonging to the first local controller and the first local gateway, the first small base station providing services to the user equipment.