Abstract: A downlink packet scheduling method is disclosed for a shared channel or a common channel in a mobile communication system between a base station and a mobile station, the method including a step in which the base station determines whether there is a waiting packet to be transmitted to the mobile station other than a current transmission packet; a step in which when it is determined that there is no waiting packet to be transmitted, the base station sets a stop period “t” in which packet transmission is temporarily stopped after the current packet transmission; a step in which the base station transmits information indicating the stop period “t” through a schedule information channel transmitting schedule information of downlink packets; and a step in which the base station stops the packet transmission to the mobile station during the stop period “t” after the current packet transmission.

Abstract: The present invention relates to a data transfer method which transfers user data of a mobile station, which is stored in a buffer of the handover source base station, from a handover source base station to a handover target base station, when the mobile station performs a handover. The data transfer method according to the present invention includes: determining, at the handover source base station, a transfer order of the user data; and transferring, at the handover source base station, the user data to the handover target base station based on the transfer order.

Abstract: A path control apparatus includes a sequence number assignment unit assigning successive sequence numbers to respective user data packets transmitted from an upper layer; and a transmission unit transmitting the user data packets with the assigned sequence numbers to a handover source base station or a handover target base station. A base station includes a sequence correction unit sorting at least one of a user data packet transmitted from a path control apparatus and a user data packet transferred from a handover source base station in a correct order in accordance with sequence numbers successively assigned to respective user data packets; and a transfer unit transferring one or more user data packets of the user data packets having the assigned sequence numbers, wherein the handover source base station has not transmitted the one or more user data packets or waits for transmission acknowledgement for the one or more user data packets.

Abstract: A base station includes data storing unit configured to store data addressed to a mobile station transmitted from a transfer route control apparatus, and data transfer unit configured to transfer the data addressed to the mobile station to a handover destination base station according to a request of the data addressed to the mobile station from the handover destination base station, wherein, when the base station receives a handover confirm complete report for reporting handover completion from the handover destination base station, the data storing unit ends storing the data addressed to the mobile station, so that the object is achieved.

Abstract: A mobile-communications system is disclosed. The system includes a mobile station, a wireless-base station enabled to communicate with the mobile station, and a location-information management apparatus for managing a state of the mobile station in a network layer upper to a link layer for managing wireless-communications resources. The mobile station is provided with wireless-communications means for transmitting and receiving a signal with the wireless-base station in an active state in the link layer for managing the wireless-communications resources, discontinuous-receiving means for discontinuously receiving a control signal from the wireless-base station in the link layer in a state different from the active state, and state-management means for creating a state-transition signal in response to a paging signal included in the control signal.

Abstract: A radio physical channel is available to multiple logical channels commonly, and multiple radio physical control channels are provided concomitantly with the radio physical channel and include a commonly usable common control channel. A channel transmission apparatus includes a logical channel type determination unit determining a type of a logical channel, and a channel transmission unit transmitting an identifier of the UE in the radio physical control channel depending on the type of the logical channel. A scheme of identifying the UE in the radio physical control channel is modified depending on the type of the logical channel.

Abstract: Embodiments of the present invention make it possible to reduce loss and delay of downlink user data transmitted at regular time intervals in a mobile communication system employing a hard handover method, and make it possible to easily perform high-quality handover solely by a handover-starting base station. A base station for transmitting downlink user data at regular time intervals to a mobile station is disclosed. The base station is configured to transmit a handover-command signal immediately after transmitting the downlink user data to the mobile station.

Abstract: A base station used in a packet transmission system in which shared user data to be selectively received by a user are transmitted using a shared data channel from one or more base stations to one or more mobile stations is provided. The base station includes means configured to provide user control data associated with transmission of the shared user data; means configured to provide notification data that include notification information used to select the shared user data and group identification information for specifying the notification information; and means configured to generate an associated control channel that is associated with the shared data channel and includes the user control data and the notification data, the associated control channel and the shared data channel being transmitted from the base station to the mobile station. The generated associated control channel is transmitted from the base station to the mobile stations.

Abstract: A data transfer method according to the present invention transfers user data of a mobile station from a handover source base station to a handover target base station through a transmission path, when the mobile station performs a handover. The data transfer method according to the present invention includes: determining, at the handover source base station, a priority order of the user data; determining, at the handover source base station, a transfer speed of the user data based on the priority order; and transferring, at the handover source base station, the user data to the handover target base station based on the determined transfer speed.

Abstract: In a mobile communication system for carrying out packet transmission/reception between a mobile terminal having a power saving mode to reduce a power consumption and a radio base station, a packet type of a packet is judged, and a sleep timer value indicating a time duration since a last packet is transmitted/received until the power saving mode starts is set according to a judgement result. Then, at least one sleep timer for measuring an elapsed time since the packet is transmitted/received is activated, and the mobile terminal is controlled to execute the power saving mode at a timing at which the elapsed time measured by the at least one sleep timer exceeded the sleep timer value.

Abstract: The present invention provides a data transmission system where MBMS data are transmitted to a mobile station in synchronization among multiple base stations without use of any central control node for controlling the multiple base stations. The data transmission system includes a communication node managing user common data, one or more radio base stations coupled to the communication node and one or more mobile stations. In the system, each of the one or more base stations is synchronized with absolute time commonly used by the base stations. The communication node includes a reception unit receiving the user common data for one or more users from a provider and a determination unit determining through communications with the one or more base stations a transmission timing when the one or more base stations transmit the user common data to the mobile stations.

Abstract: The logical channels are made to include a logical channel for control and a logical channel for data transmission, the radio physical channel are made to be commonly used for a plurality of logical channels, and one logical channel is made to have a correspondence relationship with one radio physical channel, and the channel assignment apparatus includes: traffic monitoring detection means that detects occurrence of traffic of the logical channels; and logical channel assignment means that, according to occurrence of the traffic of the logical channels, sequentially assigns required resources on the radio physical channel to the logical channels, so that the object is achieved.

Abstract: A disclosed base station includes a grouping unit configured to categorize mobile stations that are in the coverage area of the base station and in a multicast group into groups; and a content transmission unit configured to determine radio parameters for content based on at least supported frequency bands or transmission rates of the mobile stations in the respective groups and an available frequency band or a transmission rate of the base station and to transmit the content received from an upper node to the multicast group.

Abstract: A radio base station transmits user common data provided from a user common data control apparatus connected to a communication network to a plurality of mobile stations by radio. The radio base station includes a frame loss detection unit configured to detect loss of user common data that occurs on a transmission route between the radio base station and the user common data control apparatus, and a timing adjustment unit configured to change transmission timing of the user common data for the mobile station according to the loss of the user common data.

Abstract: A base station according to the present invention includes: a data storage unit 119 configured to temporarily store user data, when the base station transmits and receives the user data to and from a mobile station; an identifier adding unit 116 configured to add, to the user data stored in the data storage unit, a transfer identifier which indicates that the user data is transferred to an other base station by a handover, when the mobile station performs the handover from the base station to the other base station; and a data transfer unit 118 configured to transfer, to the other base station through a transfer apparatus, the user data to which the transfer identifier is added.

Abstract: A scramble code allocation method used by mobile communications systems, and a base station and a mobile station that use the method are disclosed. The scramble code allocation method autonomously and optimally sets up a scramble code unique to a target base station. The method includes a step of generating a collection packet for collecting unique information of surrounding base stations, the unique information being used for setting up respective identifiers of the surrounding base stations; a step of broadcasting the collection packet to the surrounding base stations through a network; a step of receiving response packets from the surrounding base stations in response to the collection packet; a step of extracting the unique information of the surrounding base stations inserted in the response packets that are received; a step of storing the extracted unique information; and a step of setting up an identifier of the target base station based on the stored unique information.

Abstract: A scramble code allocation method used by mobile communications systems, and a base station and a mobile station that use the method are disclosed. The scramble code allocation method autonomously and optimally sets up a scramble code unique to a target base station. The method includes a step of generating a collection packet for collecting unique information of surrounding base stations, the unique information being used for setting up respective identifiers of the surrounding base stations; a step of broadcasting the collection packet to the surrounding base stations through a network; a step of receiving response packets from the surrounding base stations in response to the collection packet; a step of extracting the unique information of the surrounding base stations inserted in the response packets that are received; a step of storing the extracted unique information; and a step of setting up an identifier of the target base station based on the stored unique information.

Abstract: In a mobile communication system 1 having a radio base station 2, and mobile stations 5, 6 configured to communicate with the base station 2 and segmented into a plurality of mobile station groups, the base station 5 provides a broadcast channel with first instruction information to notify the mobile station 5 of whether or not to receive the broadcast channel, provides a paging channel with second instruction information to notify the mobile station 5 of the presence/absence of paging information, and performs such a channel transmission control as to intermittently transmit the broadcast channel and the paging channel on a control channel.

Abstract: An air filtering apparatus including a housing having an air suction port and air blow-out port, an electrolytic bath for generating electrolytic water, a gas-liquid contact member disposed in the housing, an electrolytic water supply unit for supplying the electrolytic water to the gas-liquid contact member so that the electrolytic water infiltrates into the gas-liquid contact member, an air blowing fan for bringing indoor air sucked from the air suction port into contact with the electrolytic water infiltrating in the gas-liquid contact member and blowing out the indoor air from the air blow-out port, a water receiving portion for receiving the electrolytic water passed through the gas-liquid contact member, and a foreign material removing mechanism for removing foreign materials contained in the electrolytic water. The foreign material may be a filter member disposed in front of the gas-liquid contact member, or a dam member disposed in the water receiving portion.

Abstract: A mobile node in a packet commination system including a node, a link and a base station that complies with an Edge Mobility scheme is disclosed. The mobile node includes: a route information reporting unit configured to report route information that is information of a route to the own mobile node; a route information registering unit configured to obtain route information to at least one of the base station and a default router, and register the route information in a route control table; a storing unit configured to store the route control table; and a packet transmission unit configured to transmit a packet based on the route information stored in the route control table.