Abstract:
A call setup method is provided for a MVPN which includes at least one access point apparatus, at least one database, and a plurality of users. The database records a private extension number, a user phone number, and a user identity module of each user and a link address of the corresponding access point apparatus. The access point apparatus corresponding to a MO user receives a call setup request message for setting up a call with a MT user from the MO user. The access point apparatus corresponding to the MO user determines whether the link address of the access point apparatus corresponding to the MT user is valid according to the database. If the link address of the access point apparatus corresponding to the MT user is valid, the MO user and the MT user set up the call through the access point apparatuses corresponding to the link addresses.
Abstract:
The present invention provides a system and method for accelerating call setup by caching, wherein a user equipment accesses an IMS network via a radio access network and a GPRS core network. The GPRS core network has a HSS recorded with data associated with the user equipment. The IMS network comprises at least one S-CSCF and at least one I-CSCF. The I-CSCF has a cache device. At first, the user equipment sends a register signal which is forwarded to the I-CSCF, and the I-CSCF inquiries the HSS about the services that the user equipment has applied, so as to select an S-CSCF. Then, I-CSCF forwards the register signal to the selected S-CSCF, and the S-CSCF registers to the HSS as being mapped to the user equipment. Finally, when the I-CSCF receives an OK signal, the mapping between the user equipment and the S-CSCF is recorded in the cache device.
Abstract:
A multicast management mechanism for mobile networks. The mechanism proposes a multicast table approach to considerably reduce the number of short messages and multimedia messages sent to a service area, thereby reducing its paging cost. The multicast management mechanism for mobile networks includes the steps: establishing a VLR recorder table in a home location register (HLR), to record VLR addresses located by multicast users and the total number of multicast users in each VLR; and establishing LA tables, to record LA addresses in each VLR and the total number of multicast users in each LA.
Abstract:
A method of relay transmission in a mobile communication system. The mobile communication system includes at least one base station and a plurality of user equipment units (UEs). When one of the UEs attempts to send a message to the base station, this one of the UEs, referred to as a requesting UE, is capable of using the method of relay transmission to send messages to the base station via another one or more UEs, referred to as relay UEs. The method of relay transmission includes the following steps. First, a relay request confirmation procedure for the requesting UE and the relay UE is performed. Second, a base station confirmation procedure for the requesting UE, the relay UE, and the base station is executed. Next, an identity authentication procedure for the requesting UE, the relay UE, and the base station is performed. After that, a relay start confirmation procedure for the requesting UE and the relay UE is executed. Finally, a relay transmission procedure for the requesting UE, the relay UE, and the base station is performed, wherein the requesting UE sends the message to the base station via the relay UE. According to the invention, high data rate transmission can be achieved even if the requesting UE is distant from the base station, and thus communication quality can be improved, with a reduced cost.
Abstract:
An IoT system includes a computing module for controlling an integral function of the system and including an analysis unit and a machine learning unit. The analysis unit is capable of operational analysis and creating a predictive model and creating a predictive model according to the data analyzed. The machine learning unit has an algorithm function to create a corresponding learning model. An IoT module is electrically connected to the computing module to serve as an intermediate role. At least one detection unit is electrically connected to the IoT module and disposed in soil to detect data of environmental and soil conditions and sends the data detected to the computing module for subsequent analysis.
Abstract:
An intelligent power socket system is disclosed. The system is composed of a control module, a switched electricity receptacle module, a switched USB module and a dimming receptacle module. Each module has a power plug and a power socket. The control module can receive control commands from a smartphone by a user. The other three functional modules can be controlled by the control module through power line communication (PLC). The modules may be located at different places within an electricity supply division so that they can communicate through the power lines.
Abstract:
A handheld electronic device and a remote control method are provided. The handheld electronic device comprises a display unit, an electronic compass and a processing unit. The reference locations are correlated with the controlled device. The processing unit constructs the coordinate system and calculates the reference location coordinates for the reference locations in the coordinate system. After the coordinate system is constructed, the electronic compass measures the current direction information directed towards the controlled device to be remote controlled from a current location. The processing unit controls the display unit to display a control interface of the controlled device to be remote controlled. The electronic compass measures origin direction information directed towards at least two reference locations from an origin location and measures move direction information directed towards the reference locations from a move location.
Abstract:
A gateway for routing an international mobile telephone call comprises a storage device and a cost-saving routing module. The storage device is configured to store a mapping table and a call record table. The mapping table records a mobile phone number of a roaming subscriber and a fixed network number, and the call record table records a caller's phone number and the mobile phone number of the roaming subscriber. The cost-saving routing module is configured to establish a connection in accordance with the mapping table and call record table.
Abstract:
Disclosed is an apparatus and method for executing the handoff process in the wireless networks. The apparatus comprises a processor to execute an identity checking mechanism. When a wireless network station wants to move from a source AP to a destination AP, the wireless network station sends an authentication request message to the destination AP. The identity checking mechanism searches a R0KH table of the destination AP for the R0KH ID contained in the authentication request message, and determines a setting parameter for executing a handoff process. Thereby, the wireless network station may execute the handoff process. A R0KH table of an AP consists of all IDs of R0KHs that can be accessed by the AP.
Abstract:
A system for providing voice communications between an end terminal in a packet data network and a wireless communication device includes a packet communication supporting subsystem, a base station subsystem, and a Voice-over-Internet-Protocol Mobile Switching Center (“VMSC”). The packet communication supporting subsystem communicates with the packet data network and also operates to locate the wireless communication device. The base station subsystem communicates with the wireless communication device, and also communicates the packet data network through the packet communication supporting subsystem in the form of data packets. The VMSC communicates with the packet communication supporting subsystem through a packet-switched network and communicating with the base station subsystem through a circuit-switched network. In addition, registration, call-making, call-releasing, and call-receiving methods are provided for a wireless communication device to provide voice communications between the wireless communication device and an end terminal in a packet data network.