Patent application number | Description | Published |
20090036129 | BASE STATION AND DATA TRANSFER METHOD - A base station according to the present invention includes: a data storage unit | 02-05-2009 |
20090052407 | WIRELESS BASE STATION AND METHOD FOR TRANSMITTING DATA COMMON TO USERS - 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. | 02-26-2009 |
20090059835 | CENTRAL NODE, BASE STATION, MOBILE STATION, AND DATA TRANSMISSION METHOD - 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. | 03-05-2009 |
20090088173 | CHANNEL ALLOCATION DEVICE AND CHANNEL ALLOCATION METHOD - 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. | 04-02-2009 |
20090116433 | DATA TRANSMITTING SYSTEM, COMMUNICATION NODE AND DATA TRANSMITTING METHOD - 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. | 05-07-2009 |
20090154592 | DATA TRANSMITTING SYSTEM, DATA TRANSMITTING METHOD AND BASE STATION - 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. | 06-18-2009 |
20090156212 | DATA TRANSFER METHOD AND BASE STATION - 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. | 06-18-2009 |
20090170515 | BASE STATION AND HANDOVER CONTROL METHOD - 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. | 07-02-2009 |
20090219906 | CHANNEL TRANSMISSION APPARATUS AND CHANNEL TRANSMISSION METHOD - 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. | 09-03-2009 |
20090239538 | BASE STATION AND HANDOVER CONTROL METHOD - 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. | 09-24-2009 |
20090262701 | DATA TRANSFER METHOD AND BASE STATION - 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. | 10-22-2009 |
20090274124 | PACKET SCHEDULING METHOD, BASE STATION, AND MOBILE STATION IN MOBILE COMMUNICATION SYSTEM - 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. | 11-05-2009 |
20100029298 | TRACE REPORTING METHOD, TRACKING AREA ASSIGNING METHOD, USER TERMINAL, BASE STATION, AND TRACKING AREA MANAGEMENT APPARATUS - A trace reporting method, in which a user terminal reports to a tracking area management apparatus a trace along which the user terminal has moved in a mobile communication system, includes the steps of storing, by the user terminal, identifiers of base stations where the user terminal has performed cell selection in an identifier storage unit; and reporting, by the user terminal, to the tracking area management apparatus the identifiers stored in the identifier storage unit upon communicating with a base station. The tracking area management apparatus may compare the reported identifiers with a prestored pattern and assign a tracking area to the user terminal based on the comparison. | 02-04-2010 |
20100035642 | MOBILE STATION, BASE STATION, AND PROPAGATION CONDITION COLLECTING METHOD - A disclosed mobile station is used in a system where a newly-installed base station sends a broadcast channel including information indicating a pre-operation state. The mobile station includes a broadcast channel receiving unit configured to receive a broadcast channel; a new base station determining unit configured to determine whether the received broadcast channel includes the information indicating the pre-operation state; and a reporting unit configured to report an identifier of the newly-installed base station (new cell) and/or reception quality of a pilot channel sent from the newly-installed base station if the new base station determining unit determines that the received broadcast channel includes the information indicating the pre-operation state. | 02-11-2010 |
20100046433 | LOGICAL INTERFACE ESTABLISHING METHOD, RADIO BASE STATION, AND COMMUNICATION MANAGEMENT APPARATUS - A plug-and-play radio base station autonomously establishes X2 logical interfaces and S1 logical interfaces with existing base stations and upper nodes. A new radio base station which is installed in a network advertises an IP address of the new radio base station over a transport network. An existing radio base station or an upper node which receives the IP address detects the number of hops from the new radio base station to the existing radio base station or the upper node. An initial logical interface with the new radio base station is established when the detected number of hops is below a predetermined threshold. | 02-25-2010 |
20100062774 | HANDOVER METHOD AND RADIO BASE STATION - A handover method according to the present invention includes the steps of: forwarding, at a handover-source radio base station (eNB), user data (A) for a mobile station (UE) to a handover-target radio base station (eNB) when it is determined that a handover processing is to be performed, the user data (A) being stored in the handover-source radio base station (eNB); activating, at the handover-target radio base station, a predetermined timer when transmitting a path switch request to a path control apparatus, and storing second user data for the mobile station received from the path control apparatus until the predetermined timer expires; and forwarding, at the handover-target radio base station, the stored second user data to the mobile station after the predetermined timer expires. | 03-11-2010 |
20100105377 | BASE STATION APPARATUS, USER EQUIPMENT, AND METHOD USED IN MOBILE COMMUNICATION SYSTEM - A disclosed base station apparatus to be used in a mobile communication system includes a report signal receiving unit receiving a report signal from one or more user equipment terminals, a radio parameter adjustment unit adjusting radio parameters based on an analysis result of each report signal, a designation unit designating a report condition to be used for each user equipment terminal to determine whether to transmit the report signal and content to be reported in the report signal, and a report unit reporting the report condition and the content to be reported to the one or more user equipment terminals. Further, in the base station apparatus, the report condition is satisfied when a transmission source of a downlink reference signal is a specific cell, and the content to be reported includes a received quality value of the downlink reference signal. | 04-29-2010 |
20100110984 | RETRANSMISSION REQUEST TRANSMISSION METHOD, TRANSMITTING- SIDE APPARATUS AND RECEIVING-SIDE APPARATUS - In a retransmission request transmission method, a receiving-side apparatus notifies identification information of an RLC-data-PDU and a retransmission start position and a retransmission end position in the RLC-data-PDU, through a STATUS-PDU; and a transmitting-side apparatus retransmits a portion from the retransmission start position to the last portion in the RLC-data-PDU, when a predetermined value is notified as the retransmission end position by the STATUS-PDU (NACK). | 05-06-2010 |
20100113022 | MOBILE COMMUNICATION METHOD, RADIO BASE STATION AND UPPER NODE - An upper node and a handover source radio base station store setup information on an access bearer having been set up between the upper node and the handover source radio base station. A mobile communication method according to the present invention includes the steps of: (A) informing, from the handover source radio base station to a handover target radio base station, the access bearer setup information; (B) storing, at the handover target radio base station, the access bearer setup information informed of by the handover target radio base station; and (C) setting up, at the upper node, an access bearer between the upper node and the handover target radio base station by using the stored access bearer setup information without performing reallocation processing of new access bearer setup information, the access bearer being set up in response to a path switching request from the handover target radio base station. | 05-06-2010 |
20100304790 | RADIO BASE STATION APPARATUS - A shared AMP includes: a transmission/reception processor section (TRX-B) for a second mobile communication system configured to perform frequency convers ion processing on an inputted transmission baseband signal for a mobile communication system B, and to output a transmission radio frequency signal for the second mobile communication system; a power level adjuster section (VA) configured to adjust a power level of an inputted transmission radio frequency signal for a first mobile communication system; a combiner section (COM) configured to generate a transmission radio frequency signal, by combining the transmission radio frequency signal for the first mobile communication system outputted from the power level adjuster section (VA) and the transmission radio frequency signal for the second mobile communication system outputted from the transmission/reception processor section (TRX-B) for the second mobile communication system; and a common amplifier section (PA) configured to amplify a power level of the transmission radio frequency signal outputted from the combiner section (COM) at a predetermined amplification rate, and to output the resultant signal. | 12-02-2010 |
20110013593 | MOBILE COMMUNICATION METHOD AND RADIO BASE STATION - A mobile communication method according to the present invention includes: the steps of: (A) transferring, from a first radio base station (S-eNB) to an upper level node (S-GW), consecutive uplink data received from a mobile station (UE) with their sequence numbers being consecutive, by use of a resource allocated by the upper level node (S-GW), when the first radio base station (S-eNB) determines that the mobile station (UE) is to perform a handover; (B) transmitting, from the first radio base station (S-eNB) to the upper level node (S-GW) transfer completion notification data after the transfer of the consecutive uplink data to the upper level node (S-GW) is completed; and (C) releasing, at the upper level node (S-GW), the resource when receiving the transfer completion notification data. | 01-20-2011 |
20110261758 | MOBILE COMMUNICATION SYSTEM AND TRANSMISSION-SIDE NODE - In a mobile communication system according to the present invention, an AP/ULP layer of a transmission-side node (A) is configured to acquire, from a SCTP layer of the transmission-side node (A), a “rwnd” for each connection of the SCTP layer, a “cwnd” for each physical path, and a third data amount indicating an amount of data transmitted within a unit time by the transmission-side node (A) for each stream; and when an urgency flag is included in data subject to transmission, the AP/ULP layer of the transmission-side node (A) is configured to determine a stream and a physical path through which the data subject to transmission should be transmitted, based on the “rwnd”, the “cwnd”, and the third data amount, and to notify, to the SCTP layer, the determination. | 10-27-2011 |