Abstract:
PURPOSE: An electronic device and a power management method are provided to use the electronic device at a low price zone without the blocking of loads or constructing a separate energy management system. CONSTITUTION: An electronic device receives a set of power rate information (S410). The electronic device compares the power rate information with a set of predetermined reference rate information (S430). The electronic device determines the power supply source of the electronic device by using the comparison result (S450). The electronic device receives the power from the power supply source (S470). [Reference numerals] (AA) Start; (BB) End; (S410) Receive power rate information; (S430) Compare the power rate information with predetermined reference rate information; (S450) Determine power supply source of an electronic device by using a comparison result; (S470) Receive the power from the power supply source
Abstract:
PURPOSE: A server connection supporting method and an apparatus thereof using an anicast are provided to supply anicast address about handover supporting servers without signaling with a network device. CONSTITUTION: A server address obtaining unit(11) obtains an anicast address about a server system supporting handover. A server address storing unit(12) manages the obtained anicast address. The server address storing unit stores the anicast address about the server system by access network type. A server address supplying unit(13) transmits the anicast address about the server system which supports the handover. [Reference numerals] (10) Server access supporting device; (11) Server address obtaining unit; (12) Server address storing unit; (13) Server address providing unit; (AA) Terminal
Abstract:
PURPOSE: A QoS control apparatus of end-to-end session flow on an IP network and method thereof are provided to supply service quality parameter of a session by session flow. CONSTITUTION: An access processor includes a session flow control unit(610) and a session flow policy server(620). The access processor offers the access to service integration network about the terminals. The access processor divides the flow of a packet through the service integration network. The access processor transfers the flow of the packet according to the QoS policy.
Abstract:
PURPOSE: A device and a method for managing power are provided to turn on only a heterogeneous network interface and turn off the other heterogeneous network interfaces, thereby minimizing power consumption. CONSTITUTION: If a receiving traffic is generated in a multimode terminal(210), a paging controller(220) grasps a current location of the multimode terminal. The paging controller transfers a paging request to the multimode terminal. The paging controller transfers location information of the multimode terminal to a power manager(230). The power manager manages status information of network interfaces of the multimode terminal.
Abstract:
A method for establishing an L3(layer-3) handover path for flow-based QoS assurance in a mobile IPv6 network is provided to offer an IPv6-based L3 handover service with a guarantee of flow-based QoS even though a mobile terminal moves from a home network to another visited network. A mobile terminal, which has moved to a visited network, acquires a CoA(Care of Address), a new address in the visited network(S530). In order to inform a home agent, which stores the location information of the mobile terminal, of the CoA, the mobile terminal adds a hop-by-hop extended header to a BU(Binding Update) message and transmits it. An access router in the visited network compares the session flow information contained in the hop-by-hop extended header with its own flow cache(S540). If matched, the access router transmits the BU message to a BR(Boundary Router)(S541). Based on the session flow information of the hop-by-hop extended header, the BR confirms whether flow-based QoS can be provided(S550). If resources to provide flow-based QoS are available, the BR constructs its own session flow cache and transmits the BU message to the next router(S551). The next router also confirms whether flow-based QoS can be provided(S560,S570,S580). If so, the next router constructs its own session flow cache and transmits the BU message to the next router(S561,S571,S581). If the BU message is delivered to the home agent, the home agent confirms whether flow-based QoS can be provided(S590). If so, the home agent executes L3 handover processing procedures using the additional information contained int the BU message(S591).
Abstract:
A packet delivery path shortening method in Internet-based overlapped mobile networks and a device therefor are provided to enable lower mobile routers to notify self home agents of information on top mobile routers in the overlapped networks, so that the home agents can shorten packet delivery paths arriving at the home agents. The first mobile router performs an NEMO(Network Mobility) routing information function(1001). The first mobile router constructs an NEMO router advertising message for adding a CoA(Care of Address) to a self address(1002). The first mobile router delivers the constructed NEMO router advertising message to the second and third mobile routers(1003). The first mobile router confirms whether the NEMO router advertising message is received through an upper interface(1004). If so, the first mobile router conducts NEMO router advertising with a lower mobile router function(1006).
Abstract:
PURPOSE: A device for matching UTOPIA(Universal Test and Operations PHY Interface for ATM(Asynchronous Transfer Mode)) interfaces having mutually different transfer rates is provided to interface a device supporting a UTOPIA-2 interface with a device supporting a UTOPIA-3 interface. CONSTITUTION: A format converting and storing unit(501) converts the first data transceived through the first UTOPIA interface with the first transfer rate into the second data transceived through the second UTOPIA interface with the second transfer rate larger than the first transfer rate, and then performs reverse conversion thereof. A format converting and storing unit(501) stores the converted first and second data, and then transmits the second data to the second UTOPIA interface and the first data to the first UTOPIA interface. A parity calculator(502) calculates parity of the first data and the second data. A controlling unit generates control signals based on outputs of the parity calculator(502) for transmission between the first and second UTOPIA interfaces.
Abstract:
PURPOSE: A fair scheduling method of an input buffer type switch is provided to allocate service ratios proportionally to input traffics of each input module by using cell number information, and to solve service unfairness generated at a previous time or caused by the change of a switch operation condition such as back-pressure. CONSTITUTION: Information is collected about the number of cells waiting in input buffers of each input module for transmitting the cells to output ports.(210). Transmission request bids for the number of the waiting cells, a top priority of the input modules, and a round sequence of the input modules are generated(220). Sizes of the transmission request bids are compared to select an input module having a priority for transmission to the output ports(230). Grant bids for a top priority of output ports, the number of the cells waiting in the input modules selected by the output ports, and a round sequence of the output ports are generated(240). Sizes of the grant bids are compared to select an output port having a priority for receiving the cells(250). And the cells are transmitted from the selected input module to the selected output module(260).
Abstract:
PURPOSE: A method for incorporating a reverse channel resource management cell for a point-to-multi point ABR(a variable bit rate) service is provided to improve the using efficiency of link with a small size of buffer, and to offer the excellent expending property by limiting the incorporated noise reduction and an incorporated delay and by preventing an incorporated loss. CONSTITUTION: Parameters is managed in a data table for each branches connected in a switching system of branch point, and it is decided if a cell is a reverse resource management cell when the cell is received. If the cell is the reverse resource management cell, parameters corresponding to a number of branch received the reverse resource management cell is updated to an influx information loaded in the reverse resource management cell. The parameter to show the number of the received reverse resource management cell is increased as '1'. If there is at least one branch which the number of the reverse resource management cell is '0', the received reverse resource management cell is discarded. If a counter value of every branch except the branch received reverse resource management cell is larger than '0', every influx information maintained for each branch is incorporated by deciding that the reverse resource management cell is the reverse resource management cell returned from a farthest destination. The incorporated influx information is transmitted to a place of dispatch by loading in the reverse resource management cell.
Abstract:
본 발명은 단위 프레임 구조를 이용한 SSCOP 송수신 버퍼 관리 방법에 관한 것으로서, 상기 호 제어 프로세서 장치가 일정길이의 데이터를 저장할 수 있는 단위 프레임을 결정한 후 그 단위 프레임에 의해 SSCOP 송수신 버퍼 구조를 확정하는 제 100 단계와, 상기 제 100 단계에서 결정된 단위 프레임 구조에 적합하도록 상기 송수신 버퍼에 송수신 메시지를 저장하거나 상기 송수신 버퍼로부터 송수신 메시지를 추출하며, 송수신 되는 메시지가 상기 단위 프레임에 저장할 수 있는 길이를 초과할 경우 상기 송수신 버퍼내에서 다음 단위 프레임의 위치를 나타내는 다음 단위 프레임 포인터에 의해 단위 프레임 길이의 메시지들을 연결하여 상기 송수신 버퍼에 저장하거나 추출하는 것을 특징으로 하는 제 200 단계로 구성되어, 신뢰성 있는 호 제어 메시지 송수신 을 위한 SSCOP 프로토콜에 따라 메시지들을 송수신 버퍼에 저장하거나 추출할 때 SSCOP 송수신 버퍼에 단위 프레임 구조를 이용함으로써 최대 셋업 메시지 길이를 이용한 버퍼 구조보다 메모리의 낭비를 줄일 수 있는 효과가 있다. 이는 SSCOP 연결 갯수가 많아지는 대형 ATM 교환 시스템에서는 더욱 효과적이다