Abstract: Device and method for transporting a protocol message, which permits PBXs (Private Branch Exchanges) connected through a PX(Public Exchange) or PX subscriber stations to transport a new protocol message between end terminals thereof through a PX, the device including a non-ISDN protocol processor for converting a message in a non-ISDN protocol data format into a message in its own protocol data format, an interfacing part for converting the message from the non-ISDN protocol processor into a message in a UUS service message format, and a UUS service part for transferring the message in the UUS service message format to a PX, thereby permitting a message transmission/reception between PBX subscribers or PX subscribers even if a communication protocol the PX gives no support.

Abstract: An ATM cell switching system is disclosed. The system includes more than one node connected between a highway transmitting a subscriber data and a high speed line of an ATM type for implementing a converting operation between the subscriber data and an ATM cell, and an ATM switching unit for receiving an ATM cell from one among the nodes through the high speed link, judging a destination based on a header information and routing the ATM cell to another one among the nodes.

Abstract: A rate matching method is provided for a mobile communication system that performs an adjustment to a code rate based on an optimal level by puncturing or repetition to respective bit streams of transport channels. The rate matching method is preferably applicable to uplink and downlink rate matching for channel coding including turbo coding, convolutional coding and the like. The rate matching method for uplink can include executing coding for bits of a transport channel, and branching off the bits into a plurality of sequences, constructing a first interleaving pattern for the plurality of sequences, constructing a virtual interleaving pattern for at least one sequence based on a mapping rule with a corresponding first interleaving pattern and calculating different bit shifting values in each column of each virtual interleaving pattern. Then, a bit position to be punctured is determined in each constructed virtual interleaving pattern using the calculated bit shifting values.

Abstract: A method of increasing a cell capacity in a mobile communication system is disclosed. In the present invention, the cell capacity is increased by a gain control of traffic channels in a CDMA mobile communication system which can secure the cell capacity and increase the whole cell capacity by lowering the powers of the traffic channels allocated to a cell to a predetermined level. Thus, even when a call allocation is abnormal due to a decrease of forward exess capacity value, the present invention allows an allocation of normal and handoff calls.

Abstract: A method for controlling power of a forward common channel is disclosed. The present method allows a base station to obtain an initial power value for a closed-loop power control of mobile stations when a base station transmits data to a plurality of mobile stations through an a forward common channel. Particularly, the present method permits a base station to determine an initial power according to either a variation of reception power transmitted from a mobile station or a variation of the PCBs transmitted from a mobile station.

Abstract: Provided with a home location register management system in a mobile radio communication system, the system including: a processor for analyzing an input signal and sensing the inherent attributes of information included in the input signal; a plurality of application programs receptive to the output signal of the processor to output database management commands based on the attributes; and a plurality of direct memory access query interfaces receptive to the output signals of the plural application programs to have access to a database related to the task of the corresponding application processor based on the attributes, at least two direct memory access query interfaces having access to the database simultaneously to perform an operation for managing the database.

Abstract: A method for setting a number plan and providing a service for an advanced intelligent network (AIN), includes the steps of searching a first trigger which corresponds to a detected AIN call, judging whether the first trigger is a second trigger for a subscriber group, searching subscriber group information of the first trigger when the first trigger is the second rigger and detecting an identification number of a PNP(Private Numbering Plan), searching a PNP corresponding to the identification number from a NTT(Number Translation Table) of the first trigger, and gathering an additional number based on number gathering information of the searched PNP and performing a number translation based on corresponding PNP, thereby setting a certain number plan by the subscriber group and providing a subscriber-based advanced intelligent network service.

Abstract: A duplexing structure of a switching system processor and a method for maintaining a memory coherency are provided in which both data of an active memory and of a standby memory are concurrently read. The concurrently read data can be compared using hardware. In the duplexing structure, an address corresponding to the concurrent reading operation is set and a path is provided therefore. Accordingly, when an address of the active memory and the standby memory are compared, they are simultaneously accessed and compared for judgement at one time. Thus, a time required for the operation is reduced. In addition, since the comparison result can be recognized according to the kinds of the termination that is applied by hardware, without comparing the two data relying on a series of program operations on the basis of software using the CPU, the load of the CPU required with respect to memory coherency verification can be reduced.

Abstract: A method of routing an ATM cell in an ATM network and routing an ATM cell and a structure of an ATM adaptation layer in an ATM network. Data based on an ALL-Type2 (ATM Adaptation Layer Type2) and an AAL-Type5 (ATM Adaptation Layer Type5) is transferred to the same destination. This enables data based on ATM adaptation layers of different types to be transferred to the same destination at the same time.

Abstract: An alarm suppressing method for an optical transmission apparatus includes the steps of checking whether a detected alarm is a root alarm, suppressing a first propagation alarm generated by the root alarm when the detected alarm is a root alarm, determining the types of network elements, suppressing a second propagation alarm generated by the root alarm in accordance with the determined types of the network elements, and suppressing a third propagation alarm generated in accordance with the second propagation alarm. The method further includes the steps of recognizing the direction of a detected propagation alarm, retrieving an element next to the recognized direction, checking the kind of the generated propagation alarm, and suppressing a corresponding propagation alarm when a data base includes a root alarm by retrieving from the data base the information relevant to the root alarm in accordance with the kinds of the checked alarms.

Abstract: Disclosed is a cell interleaving method in an ATM switching system which is capable of reducing cell loss and transmission delay suffered in a conventional cell interleaving method.

Abstract: In a method for transmitting radio link protocol frames in a mobile radio communication system, if an error occurs on a radio section when user data frames of a radio link protocol (RLP) having respective different series numbers are transferred from a transmitting station to a receiving station, at least one missed user data frame is caused at the receiving station. At this time, the receiving station transmits, repeatedly by first times, a negative acknowledgement (NAK) control frame of the RLP for at least one missed user data frame, to the transmitting station. The transmitting station sends, by second times different from the first times, at least one missed user data frame in response to the received NAK control frame, to the receiving station.

Abstract: A data transmission apparatus for a CDMA communication system and a method are disclosed. The apparatus includes a digital combiner for combining a plurality of digital signals spread by a plurality of CDMA spreader, a digital filter for filtering a signal inputted from the digital combiner, a D/A converter for converting the filtered digital signal into an analog signal, and an analog filter for filtering the converted analog signal, for thereby performing a combining in a digital region before a plurality of CDMA signals are converted into an analog form.

Abstract: A prefix translation dispersed configuration and method according to the present invention performs a number translation by dividing into a prefix translation and a suffix translation, the prefix translation being processed in a prefix translation library provided in ASSs and the suffix translation being performed in a number translation block of an INS as in the conventional art. The prefix translation library is located in a common area that is previously defined to be accessible by all of the control blocks and performs a prefix translation request generated during a call process through a library call.

Abstract: A method of canceling interference components included in received signals of a base station in a mobile communication system, despreads user data in the order of user data grouped for the unit of transmission rate and sequentially cancels user data which are the same as despread user data by allowing the base station to know transmission rate and user codes of user data transmitted from respective terminals, in case that the respective terminals transmit various user data which require various transmission rates in the mobile communication system of CDMA type.

Abstract: A method for processing a SCSI bus fault in a SCSI system which has an initiator device and a target device interconnected via a SCSI bus. In response to a control command, the initiator device requests the target device to execute a specific SCSI command. Then, the initiator device processes a normal script phase in response to the SCSI command to transfer the SCSI command to the target device over the SCSI bus. If the fault occurs on the SCSI bus while the SCSI command is transferred to the target device, the initiator device retries the transfer of the SCSI command to the target device a predetermined number of times. Therefore, data damage in the target device due to the SCSI bus fault can be reduced to a minimum.

Abstract: Disclosed the-wireless local loop system which can support both an wireless voice service and a FAX data service by improving a current CDMA WLL system to be supported the FAX service function. The system provides a voice service and a FAX service using the first and second modems for each facsimile/telephone connected to the wire/wireless communication network of the fixed subscriber unit or the processing unit.

Abstract: A device and method for detecting a pilot PN offset in a cordless telephone system is disclosed. The device and method can detect all pilot PN offsets within a service region of the home station for detecting and providing a pilot PN offset which are not in use by other subscribers to its own handset. A controlling part determines different pilot PN offsets existing in an overlapped service region using pilot PN offsets stored in a storage region and energy values of the PN offsets to detect a pilot PN offset not in use, thus providing an optimal pilot channel signal to the cordless telephone system.

Abstract: An inter-frequency handoff execution method in a mobile communication system according to the present invention includes the steps of: transmitting from a base station a data frame in which a data transmission section and a frequency search section exist to an arbitrary mobile terminal; executing data transmission in the data transmission section; searching a frequency of other base station in the frequency search section; and determining whether or not handoff is executed in accordance with the searched result.

Abstract: This invention relates to the methods for transmitting and receiving the broadcast message in a mobile communication system. According to the present invention, the broadcast message is appropriately decomposed into the predetermined number of messages at a base station according to the load of a paging channel and to the size of the broadcast message. The decomposed broadcast messages are successively transmitted to a mobile station through the paging channel. The mobile station receives successively the decomposed broadcast messages in the decomposed order and forms a single broadcast message by arranging the received decomposed broadcast messages. For the decomposing process and the receiving process, two broadcast address parameters are added to the existing parameters.