Abstract: In a wireless communication system, a network initiates a radio bearer reconfiguration procedure by sending an RADIO BEARER RECONFIGURATION message to a user equipment. Then, the network initiates an active set update procedure by sending an ACTIVE SET UPDATE message to the user equipment. When detecting an inconsistency in the E-DPDCH power interpolation information elements indicated in the RADIO BEARER RECONFIGURATION message and the ACTIVE SET UPDATE message, the user equipment computes a first gain factor using an extrapolation formula. When unable to transmit data based on the first gain factor, the user equipment computes a second gain factor using an interpolation formula. If the data cannot be transmitted based on the second gain factor, the user equipment notifies the network of an unsuccessful radio link.

Abstract: In a wireless communication system, a network initiates a radio bearer reconfiguration procedure by sending an RADIO BEARER RECONFIGURATION message to a user equipment. Then, the network initiates an active set update procedure by sending an ACTIVE SET UPDATE message to the user equipment. When detecting an inconsistency in the E-DPDCH power interpolation information elements indicated in the RADIO BEARER RECONFIGURATION message and the ACTIVE SET UPDATE message, the user equipment computes a first gain factor using an extrapolation formula. When unable to transmit data based on the first gain factor, the user equipment computes a second gain factor using an interpolation formula. If the data cannot be transmitted based on the second gain factor, the user equipment notifies the network of an unsuccessful radio link.

Abstract: In a wireless network system which adopts a multi-layer data transmission structure, a wireless channel is established between a user equipment and a base station. A wireless transmission channel is established between the user equipment and the base station. An MTU/fragmentation size adopted in the wireless transmission channel is set and dynamically adjusted according to the current transmission status of the wireless transmission channel.

Abstract: A mobile communication device with a wireless module and a controller module is provided. The wireless module performs wireless transceiving to and from a service network. The controller module determines a data transmission parameter associated with a first protocol layer according to a link quality of the service network and a number of transmission layers supported for spatial multiplexing associated with a second protocol layer. Particularly, the first protocol layer is hierarchically higher than the second protocol layer in a multi-layer protocol stack. Also, the controller module detects a transfer failure rate for data transmission using the data transmission parameter via the wireless module, and reduces the data transmission parameter by a predetermined ratio in response to the transfer failure rate being higher than a predetermined threshold.

Abstract: In a wireless network system which adopts a multi-layer data transmission structure, a wireless channel is established between a user equipment and a base station. When a first layer operates using an initial TCP/IP window size, a signal transmission status and a current signal transmission parameter of a second layer are measured. If the signal transmission status does not meet a predetermined standard, the first layer is configured to operate according to an adjusted TCP/IP window size which is associated with the current signal transmission parameter. The first layer is hierarchically higher than the second layer in the multi-layer data transmission structure.

Abstract: A mobile communication device with a wireless module and a controller module is provided for improving data throughput by dynamically adjusting a window size of a communication protocol layer. The wireless module performs wireless transceiving to and from a service network. The controller module measures a link quality of the service network associated with a first protocol layer via the wireless module, and determines a number of transmission layers supported for spatial multiplexing associated with the first protocol layer. Also, the controller module adjusts a data transmission parameter associated with a second protocol layer according to the link quality and the number of transmission layers associated with the first protocol layer. Particularly, the second protocol layer is hierarchically higher than the first protocol layer in a multi-layer protocol stack.

Abstract: In a wireless network system which adopts a multi-layer data transmission structure, a wireless channel is established between a user equipment and a base station. A signal transmission status of a first layer is measured for adjusting a data transmission parameter of a second layer accordingly. The second layer is higher than the first layer according to the multi-layer data transmission structure.

Abstract: A mobile communication device with a wireless module and a controller module is provided. The wireless module performs wireless transceiving to and from a first service network. The controller module transmits a location update request message to a first cellular station of the first service network via the wireless module, and receives a location update rejection message, which comprises a rejection cause indicating a network related failure, from the first cellular station via the wireless module. Also, the controller module transmits another location update request message to a second cellular station of the first service network via the wireless module in response to the location update rejection message. Particularly, the first cellular station and the second cellular station belong to a first location area and a second location area, respectively.

Abstract: In a network implemented using packet-switching and circuit-switching mythologies, a short message is sent from a first device to a second device in a packet-switched domain or in a circuit-switched domain of the network. If an initial transmission attempt of the short message in the packet-switched domain is rejected due to a network-related cause, the short message is resent from the first device to the second device in the circuit-switched domain. If an initial transmission attempt of the short message in the circuit-switched domain is rejected due to a network-related cause, the short message is resent from the first device to the second device in the packet-switched domain or is directly aborted.

Abstract: In a wireless network system, a fist channel is established between a user equipment and a 3GPP-based network and a second channel is established between the user equipment and an IP-based network. The user equipment is configured to measure its transmission status and calculate an MTU/fragmentation size for conducting a communication with a core network. The core network is configured to acquire an optimized MTU/fragmentation size according to the measured transmission status and the calculated path MTU/fragmentation size, and adjust its coding scheme according to the optimized MTU/fragmentation size. The user equipment is also configured to update its current MTU/fragmentation size according to the optimized MTU/fragmentation size.

Abstract: A communication system includes a user equipment and a network having a serving cell and a neighboring cell. The user equipment receives network parameters from the network and stores a first UE-defined criteria associated with signals measured from the serving cell and the neighboring cell and a second UE-defined criteria associated with individual offsets of the serving cell and the neighboring cell. When the entering/leaving condition of a specific measurement report triggering event is satisfied, the user equipment is configured to report the specific measurement report triggering event to the network only when there is a considerable difference between measurement results of the neighboring cell and the serving cell and after determining that the network parameters have been set adequately.

Abstract: In a wireless network system which adopts a multi-layer data transmission structure, a wireless channel is established between a user equipment and a base station. A wireless transmission channel is established between the user equipment and the base station. An MTU/fragmentation size adopted in the wireless transmission channel is set and dynamically adjusted according to the current transmission status of the wireless transmission channel.

Abstract: A sender Mobile Station (MS) for providing emergent Short Message Services (SMS) is provided. The sender MS includes a wireless module and a controller module. The wireless module performs wireless transmission and reception to and from a service network. The controller module configures a short message as emergent by a user command, and transmits the short message to the service network via the wireless module to be forwarded to a receiver MS, so that, when the receiver MS receives the short message, a user of the receiver MS is alerted about that the short message is configured as emergent.

Abstract: In a network implemented using packet-switching and circuit-switching mythologies, a short message is sent from a first device to a second device in a packet-switched domain or in a circuit-switched domain of the network. If an initial transmission attempt of the short message in the packet-switched domain is rejected due to a network-related cause, the short message is resent from the first device to the second device in the circuit-switched domain. If an initial transmission attempt of the short message in the circuit-switched domain is rejected due to a network-related cause, the short message is resent from the first device to the second device in the packet-switched domain or is directly aborted.

Abstract: A method of automatic SIM card selection on a multi-SIM user equipment according to network environment is provided. When the user equipment leave its current communication range and enters a new communication range, one or more RATs are used to scan the new communication range and the identity information of each SIM card is compared with the PLMN identification of each scanned PLMN. If a match can be found, the matching SIM card is automatically set as the primary SIM in order to avoid roaming charge.

Abstract: A pipeline structure having a plurality of pipelines with varying data rates is used for transmitting data between different layers in a network device. Important data is transmitted by a faster pipeline, while less important data is transmitted by a slower pipeline. The size of each pipeline may be dynamically adjusted according the transmission status of each pipeline for improving the overall data efficiency.

Abstract: A method of reporting measurement report event first measures the parameters of a plurality of cells and sets a threshold curve for proving a specific standard corresponding to signal quality. If a specific parameter measured from a specific cell among the plurality of cells satisfies an initial trigger condition of a specific measurement report event, the specific measurement report event is reported.

Abstract: A mobile communication device with a wireless module and a controller module is provided. The wireless module performs wireless transceiving to and from a first service network. The controller module transmits a location update request message to a first cellular station of the first service network via the wireless module, and receives a location update rejection message, which comprises a rejection cause indicating a network related failure, from the first cellular station via the wireless module. Also, the controller module transmits another location update request message to a second cellular station of the first service network via the wireless module in response to the location update rejection message. Particularly, the first cellular station and the second cellular station belong to a first location area and a second location area, respectively.

Abstract: A user equipment is configured to perform an attach procedure by camping on a specific PLMN using a specific RAT. When receiving an attach reject due to a specific reject cause, the user equipment is configured to perform the attach procedure by camping on the specific PLMN using another RATs. When the attach procedure after RAT reselection fails, the user equipment is configured to perform the attach procedure by camping on another PLMN using one or multiple RATs.

Abstract: A mobile communication device is provided with a wireless module and a controller module. The wireless module performs wireless transmissions and receptions to and from a first Public Land Mobile Network (PLMN) and a second PLMN. The controller module performs a signaling procedure with the first PLMN via the wireless module, and performs a PLMN selection procedure via the wireless module without retrying the signaling procedure with the first PLMN, in response to the signaling procedure being failed with a rejection cause indicating a network failure.