Abstract: In the multi-sector base station apparatus of a mobile communication system, capable of realizing a six-sector base station apparatus by using a three-sector base station MODEM, a peripheral equipment controlling unit transfers a sector conversion control signal outputted from a CPU for controlling a sector switching of the base station, to a sector conversion controlling unit, and the sector conversion controlling unit generates a plural number of control signals for a sector conversion according to the inputted control signal and sector conversion data, and by this control signal, a sector converting unit performs a switching between sectors of a transmission signal from a base station MODEM and a reception signal transmitted from a mobile station, whereby the six-sector base station is realized through a use of the three-sector base station base station MODEM.

Abstract: A context probable table of context template is employed in order to interpolate binary picture information. The context template for respective pixels making up the binary picture information is made, and probabilities for the interior of an object and the exterior of the object on its context indexes are obtained from the context probable table arranged previously. The probabilities for the interior and exterior of the object are compared with each other and the binary picture information is interpolated with a value having more probability.

Abstract: A method for controlling handoff in mobile communications systems, includes making base station output changes for a number of users into database to store it in an inner memory and detecting a number of channels in use for CDMA channels to store, measuring and storing pilot power strength of the base station in service and continuously detecting those of neighboring base stations, so that a pilot strength measurement message is transmitted if a pilot strength in the neighbor list of pilot offset lists of the mobile station exceeds a threshold value, analyzing the pilot strength measurement message to determine if it is handoff procedure or not, and instructing hard handoff if the handoff procedure is proved and adjusting traffic channel gain of a corresponding CDMA channel according to the number of users by using the base station output changes for the number of users to make service areas between the CDMA channels, so that the mobile station is assigned with forward power and code channels, wherein change

Abstract: A traffic control method for providing a guaranteed/predictive service which can guarantee a quality of service QOS by controlling transmission routes of various traffic data with a policing function using a moving ceiling MC function and a packet scheduling function using a first in first out FIFO or weighted fair queueing WFQ method, includes the steps of: observing an average transmission rate of packet data inputted through each route by using the MC method; determining whether the packet data satisfies passing conditions of the MC method by a result of the observation; storing the packet data in an output buffer when the packet data satisfies the passing conditions thereof; storing the packet data in an empty space of a certain storing unit, and abandoning the packet data when there is no empty space, in the case that the packet data does not satisfy the passing conditions of the MC method; and transmitting the packet data to a receiving side through a single transmission route after detecting the output

Abstract: This invention relates to an ATM cell multiplexing/demultiplexing apparatus for inserts simple routing information in corresponding bits within an ATM cell and performing cell multiplexing/demultiplexing operation between a single ATM layer device and a number of physical layer devices using the routing information, the apparatus comprises: a decoding/demultiplexing unit for extracting routing information from a header of each ATM cell transmitted from the ATM layer device and demultiplexing the ATM cell according to the routing information extracted into the number of physical layer devices; an ATM cell multiplexing unit for multiplexing the ATM cells transmitted from the number of physical layer devices into the ATM layer device; a receiving routing unit for inserting routing information within a header of each ATM cell multiplexed by the ATM cell multiplexing unit; and a micro bus interface unit for interfacing the ATM layer device and the number of physical layer devices with respect to system operation a

Abstract: The present invention relates to an apparatus for measuring input and output levels of base station transmitters in the mobile communication system, for allowing measurement of an input/output level of a transmitting stage so as to check an operation state of a digital block through detection of an intermediate frequency (IF) output level of the transmitting stage and an operation state of a transmitter by the frequency allocation (FA) through measurement of an output level of the transmitter. The present invention has splitters on paths to split transmitting intermediate frequency (IF). A split signal over one path is regularly coupled to the system and a split signal over another path is sent to a power detector to measure power. A phase locked loop (PLL) local signal is generated and transmitting RF signals up-converted by the FA are converted into specified IF signals to measure power. The two measured power values are compared to determine a state of the transmitter.

Abstract: A queue allocation control method for a real time data transmission delay compensation of a communication system is disclosed.

Abstract: A dynamic overload control device and method for preventing a stoppage of a system and interruption of communication by dynamically controlling a resource use rate and processor overload in a base transceiver station and base station controller in a digital mobile communication system, the method includes the steps of: storing thresholds obtained at each point used in a data base for determining an overload after initializing, allocating an overload control process according to the thresholds, and starting the overload control process; detecting an overload detect value and determining the overload after comparing the overload detect value with the threshold allocated; and if the overload is determined, selecting one between a call allocation operation and a call allocation rejection operation, and processing the overload.

Abstract: A heterogeneous traffic Connection Admission Control system in Asynchronous Transfer Mode (ATM) networks and a method therefor, dynamically controls a system capacity to a delay demand bound of a heterogeneous traffic class in order to meet a cell loss rate for an user's demand,. reduce the influence of mutual traffic interferences and enable the Connection Admission Control in a real time, in a manner that an equivalent band width of each traffic class is calculated using a distribution function of the number of cell estimated through the traffic measurement of each of class, a capacity of a transferring channel is determined in proportion to the equivalent bandwidth calculated upon the connection request of a new call; and the link capacity determined above is compared with the results of the maximum cell rate of the call requesting the new call plus the equivalent bandwidth of all classes.

Abstract: A guard time reducing system and a method thereof for realizing a guard time that each packet is near each other in time without overlapping each other. A GPS timing unit finds the propagation passed time from a static orbit communication satellite to an earth station and a packetizing unit transmits a packet as fast as the propagation passed time than the UTC time when the packetizing unit transmits the packet to the static orbit communication satellite. According to the method, it is possible to maximize the use efficiency of the communication channel from the earth station to the static orbit communication satellite because respective earth station transmits data in each time period allocated thereto without overlapping each time period.

Abstract: Shape information coding device for interlaced scanning video and method in which the shape information coding device and method can detect an amount of motion of object video, on coding of interlaced scanning video, select field or frame coding mode in accordance with the detected result, perform motion compensation in a field unit if the selected coding mode is the field mode, and perform motion compensation in a frame unit if the selected coding mode is the frame mode. In addition, the present invention can construct one frame with two fields, upon coding of shape information for the interlaced scanning video, and then determine a motion vector predictor for shape by using motion information of adjacent block so as to perform an effective coding of the shape information motion information.

Abstract: A plurality of layers having other resolution are coded in order to encode scalably shape information. A base layer having the lower resolution is coded and transmitted to a decoder, and an enhancement layer is coded by employing a scan interleaving method from the base layer. A scan order of vertical and horizontal scannings is decided according to a generation frequency of TSD (transitional sample data) and ESD (exceptional sample data) and the number of coding bits on the base layer, or a type of boundary lines on images. When the scan order is decided, additional information indicating the scan order is transmitted to the decoder. The base layer is also coded and transmitted to the decoder. In case that the scan order is decided according to the horizontal and vertical of the boundary lines on an image of the base layer, it is no need to transmit the additional information indicating the scan order on the received base layer and execute the decoding in the same order as the coded scan order.

Abstract: The present invention relates to a device isolation structure and a device isolation method in a semiconductor power IC. The device isolation structure according to the present invention includes: a semiconductor substrate including a high voltage region and a low voltage region; a trench overlapping the high voltage device region of the semiconductor substrate and an interfacing region formed between the high voltage device region and the low voltage device region; a fourth insulating film, a fifth insulating film, and a conductive film sequentially layered in the trench; a first insulating film pattern formed on the semiconductor substrate including the trench; and field insulating films respectively formed on the trench and on a portion of an upper surface of the semiconductor substrate which is exposed out of the first insulating film pattern.

Abstract: All macro blocks (MB) decided as an “all_0”, “all_255” or “intra predicted” mode are transmitted as an “intra not coded” mode. A receiving terminal also separates “all_0”, “all_255” and “intra predicted” from the “intra not coded” mode, referring to pixels of a lower layer. “Inter coded && MVD=0” and “Inter coded && MVD!=0” modes are represented as “Inter coded”, and “Inter not coded && MVD=0” and “Inter not coded && MVD!=0” modes are represented as “Inter not coded”. As its result, coding modes on an I-picture can be reduced to two modes and coding modes on a P-picture, or a B-picture, can be lessened to four modes.

Abstract: The invention relates to a flash EEPROM cell and method of manufacturing the same.

Abstract: The present invention relates to a data transmission method between a base station controller (BSC) and a base transceiver station (BTS) in a digital mobile communication system, for varying a length of a frame according to a data transmission rate, thus improving transmission efficiency of a trunk between the BSC and BTS. When transmitting voice and data from the BSC to the BTS, a selection unit in the BSC generates a length-varied frame according to a transmission rate of a packet to be transmitted to the BTS and transmits the variable length frame to the BTS. Alternatively, when transmitting voice and data from the BTS to the BSC, a base station common processor in the BTS generates a length-varied frame according to a transmission rate of a packet to be transmitted to the BSC and transmits the variable length frame to the BSC. Therefore, the present invention can effectively use a channel bandwidth between the BTS and the BSC, thereby improving trunk efficiency.

Abstract: A method of automatically assigning a signaling terminal in a mobile communication system comprising the steps of: receiving an alarm from an SSFA and determining whether the SSFA is connected or removed according to information data of the received alarm; when the SSFA is removed, obtaining an SLP value of a signaling link to which a signaling terminal in the removed SSFA is assigned and determining whether or not there exists an alternative signaling terminal which is not assigned to any signaling link and in a normal state in connected SSFAs; when the alternative signaling terminal is found, updating the value of the SLP of the signaling link to which the signaling terminal of the removed SSFA has been assigned with the alternative signaling terminal in a database and activating the signaling link to which the alternative signaling terminal is newly assigned; when the SSFA is connected, testing loop of a signaling terminal to determine whether or not the signaling terminal is in the normal state; and when

Abstract: Disclosed is a method for operating a CDMA channel in a base transceiver station (BTS). The method for operating the CDMA channel in the BTS variably generates a CDMA channel list message transmitted from the BTS to a mobile station (MS) in a CDMA mobile communication system according to the BTS and a frequency allocation (FA) within the BTS, so as to variably operate the CDMA channel by the BTS and the FA. The method according to the present invention variably allocates a CDMA frequency number group by the BTS and the FA by means of a CDMA channel index, and a CDMA channel ID, and a CDMA channel kind, so that the CDMA channel is operated between the BTS and further by the FA, independely, thereby optimizing the CDMA frequency operation between the BTS and the MS.

Abstract: A sample value extraction apparatus in the DSS system and a method thereof are disclosed. The apparatus includes a decoder for decoding a data from a receiver, a sample value extraction unit for extracting a sample value using a CRC value based on the data received, and a descrambler for descrambling the data which is an output of an HEC decoder and the sample value extraction unit, thereby generating the PRBS data identical to that from the transmitter by correcting the receiver PRBS data and recovering the data from the transmitter in the receiver.

Abstract: Complex multiplication is performed using a multiplier by generating time division signals with a first clock and a second clock having a speed twice as fast as the first clock and operating the multiplier in a time division mode by the time division signals. Using a first clock and a second clock, the time division signals delayed by one-forth cycle are generated during one cycle of the first clock. Real element and imaginary element of two complex numbers are stored in D flip flops. A multiplexer driven by the time division signals selects each element of the complex numbers. A multiplier multiplies the selected elements in the selected time order. The multiplication results are latched in a plurality of D flip flops according to the time division signals. The latched multiplication results are added or subtracted with adder and subtracter. The outputs of the adder and subtracter are stored in D flip flops and output from the D flip flops, thereby obtaining the multiplication of two complex numbers.