Abstract: A method and apparatus for interfacing a synchronous core network with an asynchronous radio network in a next-generation mobile telecommunications system is disclosed.

Abstract: The present invention generally relates to a system and method for automatically updating a MIB by using a meta MIB, and more particularly to a system and method for automatically updating a MIB by using a meta MIB comprising agent 100 for generating an OID named as MIB Info Last Change Time, storing it in the MIB and synchronizing the meta MIB by transmitting a Trap when MIB Info Last Change Time is changed; and NMS 200, in case a trap is inputted to the NMS, for reading an information in a meta MIB Info to SNMP Walk Operation, rewriting a meta MIB information of the agent based on the read information, storing the meta MIB information in the MIB and transmitting the meta MIB information to the agent. In accordance with the present invention, the drawback residing in the conventional structure is ameliorated by designing a basic structure of SMI in the form of meta MIB, SMI defining management information of MIB which is exchanged between the agent and the NMS.

Abstract: A method and apparatus for interfacing a synchronous core network with an asynchronous radio network in a next-generation mobile telecommunications system is disclosed.

Abstract: The present invention generally relates to apparatus and method for sensing faults of application programs in a CDMA system, which comprises a shared memory comprising a plurality of fields, wherein each of the fields comprises a Heart Beat; a plurality of application programs corresponding to the plurality of fields in the shared memory on a one-to-one basis, each of which accesses to the corresponding field and increments the corresponding Heart Beat by 1 when a certain period (p1) elapses; and an operation and management processing unit which detects values of the Heart Beats of the plurality of fields in the shared memory when other certain period (p2) elapses, if all of the values of the Heart Beats equal “1,” then the operation and management processing unit initializes the values to “0” and performs normal operation, and if any of the values of the Heart Beats equals to “0,” then the operation and management processing unit recognizes a fault of an application program connected to the field, the value

Abstract: The present invention is directed to a method of allocating links in a base station of a 1×EVDO (EVolution Data Only) system. Conventionally, since a 1×EVDO system sequentially allocates a link to a user who requested a call setup irrespective of the link status, some of the allocated links may suffer from overload that eventually decreases the data transmission rate for the user. However, in order to perform the link allocation in due consideration of the link status, the present invention uses a link database including various status information, such as an equipment confirmation flag, a block flag, a current status, the total call user number, and the current call user number. With the status information, a base station control processor (BCP) in the 1×EVDO system of the present invention distributes traffic loads among the links and ensures an optimized data transmission rate.

Abstract: The present invention relates to a structure of a Management Information Base (MIB) communicated between a Network Management System (NMS) and an agent of a Network Element (NE). Conventionally, an operator provides the MIB to the NMS and the NE agent before the communication. If the MIB is not provided before the communication, the NMS cannot know what data to be retrieved from the NE agent and thus cannot understand the MIB. In order to resolve this problem, the present invention suggests using the claimed structure of MIB for communicating between the NMS and the NE agent. According to the present invention, when a MIB of the NE agent is changed, the MIB of the NE agent is reflected to the NMS automatically, and not by an operator's action. Therefore, the network can be managed automatically.

Abstract: The present invention generally relates to a switch router for use in a High-speed ATM Multi-service Switching system (HAMS), and more particularly to a switch router for transmitting IP packet data comprising: a Switch Link Assembly (SLA) for switching ATM packet data inputted from a higher block to an IP Forwarding Control Assembly (IFCA), the SLA further being operative to switch the ATM packet data inputted from the IFCA to the higher block; an IFCA for routing the ATM packet data inputted from the SLA to an EtherNet Link board Assembly (ENLA), the IFCA further being operative to route the ATM packet data inputted from the ENLA to the SLA; and an ENLA for converting the ATM packet data routed from the IFCA to an Ethernet data and transmitting the Ethernet data to the higher block, the ENLA further being operative to convert the Ethernet data inputted from the higher block to a local ATM packet data and output the local ATM packet data to the IFCA.

Abstract: The present invention provides an apparatus and method for dualizing an Asynchronous Transfer Mode (ATM) router in a CDMA2000 system. In a conventional wireless communication system, an ATM router in a Base Station Controller (BSC) has two separate dualized main central processing boards, which are also referred to as ADSL Subscriber Physical board Assembly (ASPA) boards. Each of the ASPA boards includes one operation and maintenance processor, which maintains configuration and operation information. One of the conventional dualized ASPA boards transmits its configuration and operation information to the other, or receives the information from the other, in the form of message. This is in order to maintain the consistency between the information of the dualized ASPA boards, as needed. Such message passing, however, is generally time consuming and may possibly create network overload.

Abstract: The present invention is related to a remote unit in a separation-type BTS, in which desired FA can be distributed and increased without additional changes. The remote unit comprises a main unit, an electro-optical converter for converting a signal transmitted from the main unit and received via an optical cable into an electric signal, a transceiver for processing the signals received and to be transmitted, a high power amplifier (HPA) for amplifying the transmission signal outputted from the transceiver, and a triplexer for sending the transmission signal outputted from the HPA to an antenna in a main path and setting up a path for a signal received from the antenna in the main path or an antenna in a diversity path. The remote unit further comprises an FA selection unit placed between the transceiver and the HPA for selecting a specific FA signal from the 3FA transmission signal outputted from the transceiver and sending it to the HPA, so that the FA can be easily increased.

Abstract: The present invention is directed to a method for correcting time data in a network management application. In a conventional Simple Network Management Protocol (SNMP) application, time errors occur due to a time tick or a time delay in the network. To resolve the above problem, the present invention suggests a method for correcting the time data, wherein the network management application waits for the most polling periods to save system resources, checks time data for the last polling period, and requests performance information and statistic information. With the present invention, the possibility of incurring time errors due to the information request for polling can be resolved.

Abstract: The present invention generally relates to a method for establishing an asynchronous transfer mode (ATM) traffic channel path between a SF block of a base station controller (BSC) and a channel card block (HCCA) of a base transceiver station (BTS). More particularly, the present invention is directed to a method for establishing an ATM traffic channel path between the SF block of the BSC and the channel card block of the BTS and exchanging information on such established path necessary for establishing such path, wherein the blocks have been designed and implemented in the course of commercializing ATM communication network based on an evolution-data only (EV-DO) system of Qualcomm. The present invention modifies a conventional message between the BSC and BTS, conceives a new message between them while reflecting the conventional message and provides an additional way of exchanging information on the ATM path.

Abstract: The present invention generally relates to an injector/ejector (in/ejector) and shelf structure grounded to a frame ground of a card, in which electromagnetic and electric waves generated in an electric or electronic device can be conducted outside.

Abstract: A base station receiver increases noise factor by introducing Pseudo-Noise (PN) signals when testing an effect of a cell size by a reverse virtual call in a CDMA2000-1x system. The receiver of the present invention comprises: a Front-End Unit (FEU), an Analog Down-Converter Card Assembly (ADCA), a Digital Down-Converter Card Assembly (DDCA) including an Analog/Digital Converter (ADC) and a Digital Signal Processor (DSP) for processing digital signals, and a Multi-Rate Channel Card Assembly (MCCA).

Abstract: A locking member functions to lock a card with respect to a shelf having an end with a groove upon completing a card loading process into the shelf. The locking member is provided with (1) a connecting section joined to the card, (2) a resilient section extending from the connecting section and having resilience, and (3) an engagement section formed at an end of the resilient section and having a shape engagable into the groove. The locking member is also provided with an extension section extending from the engagement section. When the extension section is pressed, a position of the engagement section is lowered due to shrinkage of the resilient section.

Abstract: A shelf unit for use in a rack for communication equipment comprising: a front body including a pair of side panels for containing PCBs; a back board detachably mounted to the rear ends of the side panels of the front body; and a rear body including a pair of side panels for containing PCBs. Connecting members are mounted adjacent to the rear ends of the side panels of the front body and protrude outward therefrom. A pair of connecting plates extends forward from the front ends of the respective side panels of the rear body. L-shaped slots are provided at the connecting plates, into which the respective connecting members are fitted.

Abstract: A method for processing a signal and a bearer separately in an ALL IP network system includes the steps of: transmitting a service request message (SRM) from a mobile station (MS) to a radio network (RN); at the RN, determining whether a circuit related service or a packet related service is requested; if the circuit related service is requested: (i) transmitting a CM service request message to a MSC server, (ii) receiving a service request acknowledgement (SRA) message from the MSC server, and (iii) assigning a bearer in response to the SRA message; and if the packet-related service is requested: (i) transmitting the (SRM) from the RN to a core network without processing the SRM; (ii) at the core network, processing the SRM and transmitting an assignment request to the RN, the assignment request requesting that the RN assign the bearer; and (iii) assigning the bearer in response to the assignment request.

Abstract: A method for repeating data transmission between a reception side and a transmission side in a radio communication system wherein the transmission side includes a first upper layer and a first layer 1 and the reception side includes a second upper layer and a second layer 1 includes the steps of: by the transmission side, measuring a radio environment; determining to perform repeated transmission or normal transmission based on a measurement result; and if it is determined to perform the repeated transmission, by the first upper layer of the transmission side, performing a first data processing; by the reception side, receiving data from the transmission side and determining if the repeated transmission or the normal transmission was performed; and if the repeated transmission was performed, by the second layer 1 of the reception side, performing a second data processing.

Abstract: A system for controlling an international mobile telecommunications—2000 (IMT-2000) base station includes: a base transceiver station (BTS) for providing asynchronous transfer mode (ATM) cells; an asynchronous transfer mode (ATM) switch for performing a switching of the ATM cells; and a BTS interface subsystem (BIS) for interfacing the base transceiver station (BTS) with the asynchronous transfer mode (ATM) switch, wherein the BTS interface subsystem (BIS) includes a plurality of assembly symbol subsystems (ASSs) for receiving the ATM cells transmitted from the base transceiver station (BTS) and performing a type conversion of the ATM cells to output a type converted ATM cells to the asynchronous transfer mode (ATM) switch.