摘要:
An apparatus and a method for managing an access state of a terminal for a group communication service in a wireless communication system are provided. In a method for operating a terminal for a group communication service in a wireless communication system, a bandwidth ranging message is transmitted to a base station in an idle state. The terminal is allocated an uplink resource from the base station. A message for access state transfer including a multicast Connection IDentifier (CID) is generated. The message for access state transfer is transmitted to the base station via the allocated uplink resource.
摘要:
A structure is provided for protecting a Radio Frequency Remote Head (RRH). The structure includes a solar head and a solar body. An upper side of the solar head is sloped to prevent an inflow of rainwater and has at least one solar panel, and a lower side thereof has at least one round cable hole surrounded by a rubber material. The solar body is situated on a lower end of the solar head and includes a plurality of solar panels, a side of each of which is sloped to prevent an inflow of rainwater and is openable upward. An upper end of the solar body has an air outlet formed to exhaust air, and a lower end thereof has an air inlet formed to receive air. The air outlet and the air inlet each have a plurality of supports arranged at specific intervals and connected by a protection net.
摘要:
The present invention relates to a system and method for preventing the abuse of emergency calls placed using a smartphone. When emergency information is transmitted to a preset guardian terminal by pressing a plurality of emergency buttons, a guardian terminal verifies whether or not there is an emergency and transmits an emergency situation experienced by a smartphone user to a server of an organization, and an officer from the organization having the server is sent to the coordinates of the location of the smartphone user which were received from the mobile communication service provider, thus enabling an organization such as a police department or a fire department to react to an emergency in the shortest possible amount of time when the smartphone user experiences said emergency. An Internet bank account of the smartphone user is converted to a preset virtual Internet bank account so as to be provided with a virtual Internet banking procedure. A bank account connected to a debit card or check card corresponding to a smartphone identification number is converted to a preset virtual bank account so as to enable an offline banking service, thus preventing additional damage to the smartphone user as a result of a cash withdrawal using the smartphone. The credit card information of the smartphone user is registered as information on a lost card, thus preventing additional damage to the smartphone user resulting from a payment by a credit card or from a card loan being taken out.
摘要:
The present invention relates to a process for preparing iodinated aromatic compounds. Particularly, the present invention comprises the step of performing the iodination of a non-halogenated aromatic compound, a monoiodo aromatic compound, a diiodo aromatic compound, and iodine in the presence of a zeolite catalyst under oxygen atmosphere.In the process for preparing iodinated aromatic compounds according to the present invention, an iodination and an iodine conversion simultaneously occur, and then prevent side-reactions. Also, the lifetime of an iodination catalyst used therein can be extended by controlling the reaction temperature stably. Therefore, the process can be used for mass production of diiodo compound.
摘要:
A computed tomography apparatus for geological resource core analysis, more particularly to a computed tomography apparatus for geological resource core analysis in that it can conveniently utilize a computed tomography apparatus for industrial use, the movement between the CT beam transmitter and the detector is decreased, thereby performing an accurate measurement and breaking down infrequently, and especially, it can easily perform a CT scan on a cylinder type (or rod shape) sample having a very long major axis such as a geological resource core sample.
摘要:
The present invention relates to a method of preparing iodinated aromatic compounds, and more preferably a method of preparing iodinated aromatic compounds comprising a step of iodinating a react ant including an aromatic compound, a di-iodo aromatic compound or water, and iodine (I2) in the presence of a zeolite catalyst and oxygen. The method of the present invention has an advantage that by iodination of a reactant including the aromatic compound, and the di˜ iodo aromatic compound or water in the presence of the zeolite catalyst and oxygen, the temperature of the iodinating reactor can be controlled reliably and constantly, thereby resulting in improved productivity per unit weight of catalyst and inhibition of a side reaction in accordance with suppression of producing impurities. In addition, the productivity of the iodinated aromatic compound, preferably the di-iodo aromatic compound, more preferably a p-di-iodo aromatic compound can be improved, and thus can be widely used in the preparation of a di-iodo aromatic compound such as a p-di-iodo aromatic compound.
摘要:
A computed tomography apparatus for geological resource core analysis, more particularly to a computed tomography apparatus for geological resource core analysis in that it can conveniently utilize a computed tomography apparatus for industrial use, the movement between the CT beam transmitter and the detector is decreased, thereby performing an accurate measurement and breaking down infrequently, and especially, it can easily perform a CT scan on a cylinder type (or rod shape) sample having a very long major axis such as a geological resource core sample.
摘要:
A structure is provided for protecting a Radio Frequency Remote Head (RRH). The structure includes a solar head and a solar body. An upper side of the solar head is sloped to prevent an inflow of rainwater and has at least one solar panel, and a lower side thereof has at least one round cable hole surrounded by a rubber material. The solar body is situated on a lower end of the solar head and includes a plurality of solar panels, a side of each of which is sloped to prevent an inflow of rainwater and is openable upward. An upper end of the solar body has an air outlet formed to exhaust air, and a lower end thereof has an air inlet formed to receive air. The air outlet and the air inlet each have a plurality of supports arranged at specific intervals and connected by a protection net.
摘要:
A technique forwards handover data in a wireless communication system. A base station apparatus includes a first buffer for storing downlink data of a terminal, a handover agent for, when the terminal performs a handover, performing scheduling on data which is stored in the first buffer for at least one terminal including the terminal that performs the handover so that an interruption time of the at least one terminal is reduced in order to forward the data to a target base station, and a communication unit for transmitting the data according to a scheduling result of the handover agent.
摘要:
A Base Station (BS) and method of the BS for controlling a scanning process of a mobile station are provided The method of the base station for controlling a scanning process of a mobile station includes receiving, at the base station, a scan request issued in association with the mobile station, determining whether the mobile station has a scan in progress by referencing a scan record table, transmitting a scan response to the mobile station, and recording a scanning status of the mobile station in the scan record table. The method and base station for controlling the scanning process of a mobile station is advantageous to avoid the collision of scanning processes.