摘要:
Provided is a method of multi-phase call admission control on a wireless Internet system using an active set. The method includes the steps of: a) periodically checking, at one base station, active user sets of the base station and neighboring base stations to extract at least one terminal existing simultaneously in the respective active user sets of the predetermined base stations among the checked base stations for a predetermined period of time, and managing the extracted terminal as a stationary active user set; b) checking whether resources for the stationary active user set are available upon exhaustion of resources reserved for new and handover calls; and c) accepting a corresponding call when the resources are available, and rejecting the corresponding call when the resources are not available.
摘要:
A GPRS system having multiple GGSNs connected to a public network, for providing a packet-based mobile service, comprises: an SGSN for controlling a connection operation according to a session request of a mobile terminal for receiving the packet-based mobile service, and transmitting a packet according to a connected session; a multiple GGSN unit including a plurality of sub GGSNs, selected by the SGSN according to a session request by the mobile terminal, for transmitting and receiving packets; a DNS for storing DNS names and IP information in the GGSNs of the multiple GGSN unit according to selection of the SGSN; an operator network for managing the DNS and communication; and an edge router for performing packet routing between the GPRS system and the public network.
摘要:
Disclosed is a protocol embodying system and method in the GGSN. An IP layer is provided between the GPRS network and the PDN and performs routing between the two networks, and performs routing between the protocols of the first and second network layers and the transfer layer protocol on the GPRS network. A virtual driver is provided on the lower part of the IP layer, is connected to the protocol of the GPRS tunneling provided to the upper part of the IP layer on the GPRS network, and is operable as the lower interface of the IP layer. Since the upper part and the lower part of the IP are appropriately connected by the virtual driver, a single IP is needed in the system, and the embodied configuration becomes simpler.
摘要:
Disclosed is a protocol embodying system and method in the GGSN. An IP layer is provided between the GPRS network and the PDN and performs routing between the two networks, and performs muting between the protocols of the first and second network layers and the transfer layer protocol on the GPRS network. A virtual driver is provided on the lower part of the IP layer, is connected to the protocol of the GPRS tunneling provided to the upper part of the IP layer on the GPRS network, and is operable as the lower interface of the IP layer. Since the upper part and the lower part of the IP are appropriately connected by the virtual driver, a single IP is needed in the system, and the embodied configuration becomes simpler.
摘要:
Provided is an apparatus for searching accessible wireless networks in a software-defined radio (SDR) terminal, a method thereof, and a computer-readable recording medium for storing a program executing the method. The apparatus includes: a hardware platform; a network search executable code storing means for storing a network search executable code having at least one of mode search executable codes; a search shape information storing unit for storing search shape information necessary for network search; a network search control means for arranging each of the mode search executable codes from the network search executable code storing means at the hardware platform by using the search shape information from the search shape information storing means and searching a network according to a search mode by executing the arranged mode search executable codes; and a network search result storing means for storing network search results from the network search control means.
摘要:
Disclosed is a method for automatically searching a wireless LAN AP (access point) in a terminal having a wireless LAN module, a mobile communication module, and a GPS receiving module installed therein. The method comprises: (a) acquiring location information of the wireless LAN AP provided in a service area of a base station from the base station connected through the mobile communication module; (b) consecutively tracking a current location of the terminal through the GPS receiving module; (c) determining a driving start time of the wireless LAN module through the location information of the wireless LAN AP acquired in (a) and the current location information of the terminal tracked in (b); and (d) driving the wireless LAN module to detect a beacon signal periodically output by the wireless LAN AP.
摘要:
Disclosed is an apparatus and method for searching an access point (AP) of a wireless LAN based on broadcasting information of a base station in a mobile communication network. In case that a dual mode mobile station having a wireless LAN module and a mobile communication module wants to use a data service through the AP of the wireless. LAN, the apparatus and method for automatically searching an access point (AP) of a wireless LAN drives the wireless LAN module only when there is the AP of the wireless LAN, thereby reducing power consumption.
摘要:
The present invention relates to a communication device that automatically searches for wireless local area network (WLAN) access points, and to a method thereof. The communication device includes a GPS receiving module (12) for receiving position information of the connection device from a GPS satellite; a WLAN module (11) for connecting with the WLAN access point; a storage unit (13) for storing position information of the WLAN access point; and a controller (14) for selectively operating the WLAN module based on the position information of the communication device output from the GPS receiving module (12) and the position information of the WLAN access point stored in the storage unit (13). According to the present invention, a user terminal receiving data services through WLAN efficiently utilizes power. Also, the searching of the WLAN access points is performed automatically without the need for user manipulation.
摘要:
The present invention relates to a communication device that automatically searches for wireless local area network (WLAN) access points, and to a method thereof. The communication device includes a GPS receiving module (12) for receiving position information of the connection device from a GPS satellite; a WLAN module (11) for connecting with the WLAN access point; a storage unit (13) for storing position information of the WLAN access point; and a controller (14) for selectively operating the WLAN module based on the position information of the communication device output from the GPS receiving module (12) and the position information of the WLAN access point stored in the storage unit (13). According to the present invention, a user terminal receiving data services through WLAN efficiently utilizes power. Also, the searching of the WLAN access points is performed automatically without the need for user manipulation.
摘要:
Provided is an apparatus for searching accessible wireless networks in a software-defined radio (SDR) terminal, a method thereof, and a computer-readable recording medium for storing a program executing the method. The apparatus includes: a hardware platform; a network search executable code storing means for storing a network search executable code having at least one of mode search executable codes; a search shape information storing unit for storing search shape information necessary for network search; a network search control means for arranging each of the mode search executable codes from the network search executable code storing means at the hardware platform by using the search shape information from the search shape information storing means and searching a network according to a search mode by executing the arranged mode search executable codes; and a network search result storing means for storing network search results from the network search control means.