Abstract:
A mobile communication device and method including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from an advanced network and a legacy network. The controller receives a message from the advanced network via the wireless transceiver for redirecting the mobile communication device from the advanced network to the legacy network in response to a request for a call, searches for a suitable cell in the legacy network via the wireless transceiver in response to receiving the message, and camps on the suitable cell for making the call via the wireless transceiver regardless of the suitable cell being of a low priority and whether there is another suitable cell of a normal priority or not.
Abstract:
A discontinuous transmission (DTX) information transmission method is provided. The DTX information transmission method may include the following steps. A processor of an apparatus may determine whether to enter a DTX mode. A transceiver of the apparatus may transmit DTX information to a network node in response to determining to enter the DTX mode.
Abstract:
A mobile communication device including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from an advanced network and a legacy network. The controller receives a message from the advanced network via the wireless transceiver for redirecting the mobile communication device from the advanced network to the legacy network in response to a request for a call, searches for a suitable cell in the legacy network via the wireless transceiver in response to receiving the message, and camps on the suitable cell for making the call via the wireless transceiver regardless of the suitable cell being of a low priority and whether there is another suitable cell of a normal priority or not.
Abstract:
A communications apparatus includes a radio transceiver, a memory device and a processor. The radio transceiver transmits or receives wireless radio frequency signals to or from an air interface. The memory device stores a registration database including one or more sets of registration data. Each set of registration data corresponds to an International Mobile Subscriber Identity (IMSI). The processor determines whether performing a PLMN search procedure is required, and when performing a PLMN search procedure is required, the processor retrieves suitable registration data from the registration database according to a currently used IMSI and performs the PLMN search procedure via the radio transceiver based on the retrieved suitable registration data.
Abstract:
A method of selecting a SIM for a location service and a multi-SIM device utilizing the same are disclosed. The method, adopted by a multi-SIM device, includes: acquiring Secure User Plane Location (SUPL) information from a corresponding communications network which each SIM is in connection with; determining which communications network supports a location service based on the SUPL information; and requesting the location service on a SIM that is in connection with the supported communications network.
Abstract:
A dual Subscriber Identity Module (SIM) transmission method is provided. The dual SIM transmission method may include the following steps. A first SIM of an apparatus may perform a first service from a first serving cell. Then, a processor of the apparatus may determine whether the apparatus needs to be switched to a dual SIM dual active (DSDA) mode in response to a second SIM of the apparatus requiring a second service while the first SIM is performing the first service. In response to determining that the apparatus needs to be switched to the DSDA mode, the processor may select a target cell to make the apparatus support the DSDA mode.
Abstract:
A discontinuous transmission (DTX) information transmission method is provided. The DTX information transmission method may include the following steps. A processor of an apparatus may determine whether to enter a DTX mode. A transceiver of the apparatus may transmit DTX information to a network node in response to determining to enter the DTX mode.
Abstract:
A method of selecting an active SIM for an emergency service and a multi-SIM device utilizing the same are disclosed. The method, adopted by the multi-SIM device, includes: receiving a request for an emergency call on a first SIM camping on an LTE network; determining whether a second SIM camps on a second communications network which supports an emergency service; and when the second communications network supports the emergency service, performing the emergency call from the second SIM.