摘要:
A method for constructing a zone database for providing home zone services to the subscribers of a mobile communications system, comprises the steps of dividing a service area into a plurality of home service zones; simulating the communication coverage of the base stations for each of the home service zones; detecting the pilot signal strengths of the base stations; and, selecting a given number of the base stations in the order of pilot signal strength as the home zone.
摘要:
An apparatus is configured to allocate an IDentification (ID) cell to avoid duplication of a preamble Pseudo Noise (PN) code in a broadband wireless communication system. The apparatus selects one sector inside the system. A temporary ID cell for the selected sector is selected. Whether an ID cell of a sector to which an ID cell has been already allocated inside a minimum unit group for ID cell allocation is the same as the temporary ID cell is determined. Whether PN codes of sectors inside a neighbor list of the selected sector are the same as temporary PN codes determined using the temporary ID cell are determined. When the temporary ID cell is not duplicated and the temporary PN codes are not duplicated, the selected temporary ID cell is allocated as an ID cell of the selected sector.
摘要:
An apparatus is configured to allocate an IDentification (ID) cell to avoid duplication of a preamble Pseudo Noise (PN) code in a broadband wireless communication system. The apparatus selects one sector inside the system. A temporary ID cell for the selected sector is selected. Whether an ID cell of a sector to which an ID cell has been already allocated inside a minimum unit group for ID cell allocation is the same as the temporary ID cell is determined. Whether PN codes of sectors inside a neighbor list of the selected sector are the same as temporary PN codes determined using the temporary ID cell are determined. When the temporary ID cell is not duplicated and the temporary PN codes are not duplicated, the selected temporary ID cell is allocated as an ID cell of the selected sector.
摘要:
Disclosed is a method for building a home-zone database using data measured while moving about the home-zone service area in a mobile communication system, which includes a mobile diagnostic monitor with a GPS antenna, a mobile telephone and a base station database. The method comprising the steps of: measuring the strength of a pilot signal received from each base station in the home-zone service area; deriving a line-fitting formula indicating a variation trend of the pilot strength of each PN (Pseudo Noise) offset according to the distance between the respective base station from the monitor device; generating a plurality of bins associated to the home-zone service area in the form of a grid; estimating the pilot strength of each bin by applying the line-fitting formula to the respective bin; and searching the base station database for the PN offsets corresponding to the pilot strengths estimated for the respective bins and reading the cell identification information for each searched PN offset to build a home-zone database.
摘要:
A laser cleaning device, and a laser cleaning method using the same, for removing an electrolyte solution stuck to an electrolyte tab during a process of injecting the electrolyte solution are disclosed. The laser cleaning device for an electrode tab of a battery includes: a cleaning housing, in which a battery case for receiving an electrode group, an electrolyte solution and an electrode tab exposed to the outside are embedded; a laser generator which includes a laser source for generating a laser beam and an output controller for controlling output of the laser beam; a laser transmitter which transmits the laser beam generated by the laser generator; and a laser emitting unit which is installed inside the cleaning housing, and which irradiates the laser beam transmitted by the laser transmitter onto the electrode tab so as to remove liquid pollutants stuck to the electrode tab. The laser cleaning method comprises steps generally corresponding to the latter functions of the laser cleaning device.
摘要:
A laser cleaning device, and a laser cleaning method using the same, for removing an electrolyte solution stuck to an electrolyte tab during a process of injecting the electrolyte solution are disclosed. The laser cleaning device for an electrode tab of a battery includes: a cleaning housing, in which a battery case for receiving an electrode group, an electrolyte solution and an electrode tab exposed to the outside are embedded; a laser generator which includes a laser source for generating a laser beam and an output controller for controlling output of the laser beam; a laser transmitter which transmits the laser beam generated by the laser generator; and a laser emitting unit which is installed inside the cleaning housing, and which irradiates the laser beam transmitted by the laser transmitter onto the electrode tab so as to remove liquid pollutants stuck to the electrode tab. The laser cleaning method comprises steps generally corresponding to the latter functions of the laser cleaning device.
摘要:
Provided is a swaging apparatus for smoothly swaging a can of a rechargeable battery by absorbing excessive load above a predetermined level between a rod of a driving part and a collet of a driven part. A swaging apparatus according to an exemplary embodiment includes a collet housing for swaging a can including an electrode assembly, a collet for swaging an opening of the can inserted in the collet housing, a shock-absorbing part disposed in the collet housing and connected to the collet, and a rod connected to the shock-absorbing part to transmit a swaging load to the collet through the shock-absorbing part.
摘要:
A semiconductor chip includes: a gate pattern on a substrate; an interlayer insulation layer on the gate pattern; a first wiring structure on the interlayer insulation layer; and a defect detection circuit electrically connected to the gate pattern and the first wiring structure. The first wiring structure is electrically connected to the gate pattern via a contact plug through the interlayer insulation layer. The defect detection circuit is electrically connected to the gate pattern and the first wiring structure, and the defect detection circuit is configured to detect defects in the first wiring structure and at least one of the gate pattern and the substrate.
摘要:
Provided is a swaging apparatus for smoothly swaging a can of a rechargeable battery by absorbing excessive load above a predetermined level between a rod of a driving part and a collet of a driven part. A swaging apparatus according to an exemplary embodiment includes a collet housing for swaging a can including an electrode assembly, a collet for swaging an opening of the can inserted in the collet housing, a shock-absorbing part disposed in the collet housing and connected to the collet, and a rod connected to the shock-absorbing part to transmit a swaging load to the collet through the shock-absorbing part.
摘要:
A panel gripping jig for gripping a panel, regardless of the size and shape of the panel, includes a welding unit for temporarily holding the panel. A separation unit releases the coupling state of the panel and the welding unit. A mounting arm has the welding unit mounted thereon, moves the welding unit in a longitudinal direction thereof, and has a connection part to connect the mounting arm to a working robot. A displacement unit adjusts the position of the welding unit on the mounting arm. A control board outputs control signals to operate the welding unit, the separation unit, and the displacement unit according to a user input.