Patent application number | Description | Published |
20090109923 | Base Station of Mobile Communication System - A base station of a mobile communication system which allocates a bandwidth for handover ranging or bandwidth request ranging in response to a code transmitted from a mobile station that is selected by the mobile station from a plurality of codes includes a ranging allocating unit configured to allocate, to a mobile station performing handover, at least one of a dedicated ranging code and a dedicated ranging slot that are exclusively used and not used by any mobile stations other than the mobile station, and that are provided separately for each of a plurality of base stations to which the mobile station is to be possibly connected. | 04-30-2009 |
20090238140 | Gateway apparatus and handover method - A gateway apparatus for exchanging packet between a home agent and a mobile station, and being a destination gateway apparatus to which the mobile station is connected by handover, having a transmission unit which transmits to the home agent a simultaneous registration request requesting simultaneous registration of a bi-directional tunnel at both an old route via a source gateway apparatus to which the mobile station is connected before handover, and a new route via the destination gateway apparatus; and a packet control unit which discards one downlink packet of a duplicated downlink packet addressed to the mobile station, when the simultaneous registration is maintained. | 09-24-2009 |
20090310559 | Seamless Handover of a Mobile Station from a Macro Base Station to a Privately Accessible Femto Base Station - In an embodiment, a method is provided that includes receiving a handover request for a mobile station to be handed over to a macro base station. Identification information for the mobile station is received. The identification of the mobile station is compared with stored association information that includes identification information of a femto base station, and identification information for a particular mobile station. The method further includes identifying that the mobile station identification information matches the identification information for an associated mobile station using the stored association information. The information regarding the associated femto base station is transmitted to the associated mobile station. | 12-17-2009 |
20090310568 | Seamless Handover and Load Balance Between Macro Base Stations and Publicly Accessible Femto Base Stations - The teachings of the present disclosure relate to seamless handover between macro base stations and publicly accessible femto base stations that includes scheduling a null period in a femto base station's communications activity. The method also includes monitoring mobile station activity during the null period at the femto base station. A candidate mobile station is identified based on the monitoring. An identifier of the candidate mobile station is transmitted from the femto base station to a macro base station. The identifier may be used to initiate handover of service of the candidate mobile station from the macro base station to the femto base station. | 12-17-2009 |
20090312019 | Mobile Station Assisted Seamless Handover to a Femto Base Station - According to an embodiment, a method is provided. The method includes identifying a femto base station of a wireless network as the home femto base station for a mobile station served by the wireless network. The connection parameters for the home femto base station may be stored at the mobile station. A home macro base station may be identified and associated with the home femto base station. Identification information for the home macro base station may be stored at the mobile station. Association information of the home femto base station with the home macro base station may be stored at the mobile station. | 12-17-2009 |
20090312024 | Seamless Handover Between Macro Base Stations and Publicly Accessible Femto Base Stations - The teachings of the present disclosure relate to seamless handover between macro base stations and publicly accessible femto base stations that includes determining the location of each of a plurality of femto base stations in the coverage area of a macro base station. A plurality of groups according to the locations of the particular femto base stations are created. The groups are a subset of the plurality of femto base stations. Finally, identification information for one or more of the groups of femto base stations is transmitted to a mobile station in the coverage area of the macro base station. | 12-17-2009 |
20100054208 | BASE STATION AND SERVICE FLOW ESTABLISHMENT METHOD - A base station includes a determining unit that determines whether a competition occurs between an identifier of a first service flow established with respect to a mobile station and an identifier of a second service flow which is requested to newly establish with respect to the mobile station; a changing unit that changes the identifier of the first service flow or the identifier of the second service flow, when the determining unit determines that the competition of the identifiers occurs; and an establishing unit that establishes the second service flow by using the identifier of the second service flow with the competition being eliminated against the first service flow through the change by the changing unit. | 03-04-2010 |
20100056177 | MOBILE COMMUNICATION SYSTEM AND POSITION DETECTION METHOD - A mobile communication system includes a first base station and one or more base stations whose information is included in adjacent-base-station information notified by the first base station. The mobile communication system includes a transmitting unit that transmits information on one or more base stations whose information is not included in the adjacent-base-station information to a mobile station, and a position detecting unit that, by using the one or more base stations whose information is not included in the adjacent-base-station information, detects a position of the mobile station. | 03-04-2010 |
20100110965 | Base Station, Apparatus, And Mobile Station - First paging information is determined in advance according to the characteristics of delivered data for each channel of delivered multicast data, and the multicast data delivery frame of each channel is determined based on the first paging information. Paging information (second paging information) for a mobile station which selects a channel is determined from the first paging information determined for each selected channel. Due to this, multicast data delivery frame can be overlapped (is synchronized) with frames for monitoring for paging announcements, and power consumption for an MS in the idle mode can be reduced. | 05-06-2010 |
20100137007 | Mobile Station And Wireless Base Station Side Device In Wireless Communication System - In a system in which a reception (paging) cycle is defined by the number of frames, even if the length of the frames is changed, the power consumption of a mobile station (MS) and a delay in the response at the time of incoming are maintained by changing the paging cycle so that the paging cycles become equal in a time unit. The mobile station for receiving the signal from a wireless base station for each cycle defined by the number of frames to detect an incoming notification has a measurement unit for detecting a change in the frame length of the received frames, a cycle changing unit for, if the change is detected, increasing or decreasing the number of frames which defines the cycle, and an incoming notification monitoring unit for receiving the signal from the wireless base station in accordance with the cycle changed by the cycle changing unit. | 06-03-2010 |
20100331033 | WIRELESS COMMUNICATION NETWORK SYSTEM AND METHOD - A wireless communication network system including: a command station for allocating a frequency band, broadcasting a backup station and periodic measurement periods in which a terminal should measure a reception quality, and stopping the allocation of the frequency band to the terminal during the measurement period; one or a plurality of backup stations for synchronizing with the command station and transmitting a measurement signal by using the same frequency channel as that of the command station; and one or a plurality of terminals for measuring a reception quality for each backup station by using the measurement signal. | 12-30-2010 |
20110032860 | COMMUNICATION SYSTEM, METHOD, AND COMMUNICATION APPARATUS - A base station in a communication system where mobile stations receive paging announce using a discontinuously received reception frame and the mobile stations receive multicast data as well as the paging announce, in which the mobile stations in idle mode are searched for from among the mobile stations receiving multicast data, the mobile stations located where a paging group to which the searched-for mobile stations belong overlaps an area where the multicast data are distributed are selected from among the searched-for mobile stations, and the base station includes a radio resource allocating unit allocating radio resources to the selected mobile stations, the radio resources being for transmitting uplink signal, and an allocated radio resource information including unit including information of radio resources allocated by the radio resource allocating unit in a radio frame transmitting the multicast data to be transmitted to the selected mobile stations. | 02-10-2011 |
20110124330 | RADIO COMMUNICATION SYSTEM, MOBILE RELAY STATION, MOBILE STATION, AND RADIO COMMUNICATION METHOD - A radio communication system in which a mobile relay station includes a notification unit configured to notify the mobile station of mobility state information of the mobile relay station determined based on a number of base stations selected within a specified time, and the mobile station includes a base station selection processing unit to select the base station based on the mobility state information when the mobile station switches a device to be communicated with from the mobile relay station to the base station. | 05-26-2011 |
20110299499 | COMMUNICATION CONTROL APPARATUS, IDENTIFIER ALLOCATION METHOD FOR THE COMMUNICATION CONTROL APPARATUS, AND MOBILE COMMUNICATION SYSTEM - A first base station forms a cell group including a first cell and a second cell partly overlapping with the first cell. A second base station forms a cell group including a third cell and a fourth cell partly overlapping with the third cell. An allocator of a communication control apparatus specifies an identifier for wireless communication that differs from any of wireless communication identifiers already allocated to mobile devices existing within either the first or second cell forming the cell group, and allocates the specified wireless communication identifier to a mobile device existing in the cell group constituted by the first and second cells. A transmitter transmits the identifier allocated by the allocator to the mobile device via the first base station. | 12-08-2011 |
20120008581 | MOBILE STATION, WIRELESS BASE STATION, AND WIRELESS COMMUNICATION METHOD - In a mobile station which communicates wirelessly with a wireless base station with a plurality of connections established by using part or all of a plurality of frequency bands, a plurality of wireless communication interfaces is associated with the plurality of frequency bands, and a processor makes a sleep request to the wireless base station, acquires from the wireless base station information about a result of scheduling complying with the sleep request and indicating non-sleep intervals of the individual connections and the frequency bands to be used for the respective non-sleep intervals, and performs sleep control on the plurality of wireless communication interfaces in accordance with the acquired information. | 01-12-2012 |
20120082028 | METHOD FOR CONTROLLING LOAD, BASE STATION AND MANAGEMENT DEVICE - A method for controlling a load in a base station device, including: receiving load information from another base station; receiving, from the other base station, admission information that indicates that an admission of a process request for the other base station to perform a first process is permitted or rejected; storing history information in which the received load information is associated with the admission information; and determining, on the basis of load information newly received from the other base station and the stored history information, whether to request the other base station to perform a second process that causes a load that is equivalent to or lower than the first process. | 04-05-2012 |
20120225682 | BASE STATION DEVICE, MOBILE TERMINAL, COMMUNICATION SYSTEM, AND RADIO COMMUNICATION METHOD - A base station device characterized by including: a transmission portion that broadcast-transmits identification information indicating a first cell to a mobile terminal in an idle mode under control of the base station device; and a reception portion that receives information indicating a destination cell that the mobile terminal in the idle mode transmits when moving between cells; wherein when the base station device is a base station device forming a second cell adjacent to the first cell, the reception unit receives information indicating the second cell from the mobile terminal in the idle mode which has received the identification information indicating the first cell transmitted from another base station device forming the first cell, and receives information indicating the first cell from the mobile terminal in the idle mode which has received the identification information indicating the first cell transmitted from the base station device. | 09-06-2012 |
20130031036 | PARAMETER SETTING APPARATUS, NON-TRANSITORY MEDIUM STORING COMPUTER PROGRAM, AND PARAMETER SETTING METHOD - A parameter setting apparatus for a control parameter for a wireless communication network including a processor, wherein optimizations for optimizing the control parameter are separated into groups which are unrelated to each other, and the processor executes: a first agent program which are assigned to a group-by-group selects an optimization to be activated according to a first value function; and a second agent program which learns a second value function for determining whether an optimization that affects the first value function is to be activated or not and determines whether the optimization is to be activated or not according to the second value function, and, the activation of the optimization by the first agent program is stopped when the second agent program activates the optimization. | 01-31-2013 |
20130122885 | PARAMETER SETTING APPARATUS AND PARAMETER SETTING METHOD - A parameter setting apparatus includes a memory, and a processor that executes a procedure in the memory, the procedure including, selecting and executes one of a plurality of optimization operations to optimize a control parameter of a mobile communication network in accordance with a common value function, in response to a state variable in each of a plurality of different areas in the mobile communication network, the common value function determining an action value of each optimization operation responsive to the state variable of the mobile communication network, determining a reward responsive to the state variable in each of the plurality of areas, and performing reinforcement learning to update the common value function in response to the reward determined on each area. | 05-16-2013 |
20130225178 | CELL SPECIFYING METHOD, BASE STATION, AND MOBILE STATION - In a cellular mobile communication system that operates in a first state in which UE has not established a connection with eNB and in a second state in which the connection has been established with eNB, the UE transmits cell selection history to the eNB of a second cell when handover from a first cell to the second cell in accordance with second criteria for handover in the second state, the cell selection history containing a history of cell selection performed in accordance with first criteria for cell reselection in the first state. When the UE performs handover from the first cell to the second cell within a period after transition from the first state to the second state, the eNB of the second cell specifies the cell in which the first criteria and the second criteria are not aligned from among the first cell and the second cell. | 08-29-2013 |
20140071971 | WIRELESS BASE STATION, WIRELESS TERMINAL, AND PACKET TRANSMISSION METHOD - A wireless base station includes a processor configured to detect whether a device that is a final destination of packets is a wireless device or a wired device, aggregate payloads in unit of byte, which are included in the packets comply with a TCP, so as to become a maximum length of data unit which is allowed for the data link layer in an wireless LAN, when a condition is satisfied in which the device is detected to be the wireless device, form a payload complying with a protocol of the data link layer in a wireless network based on the aggregated payloads when the condition is satisfied, and configure a packet that includes the formed payload complying with the protocol when the condition is satisfied and configure packets that include the payloads complying with the TCP when the condition is not satisfied. | 03-13-2014 |
20140289313 | COMMUNICATION DEVICE, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD - A communication device, including: a processor configured to estimate each of a plurality of first throughputs for each of a plurality of first route patterns corresponding to each of combinations of a plurality of first routes used in parallel, coupling the communication device to a first content server, estimate each of a plurality of second throughputs for each of a plurality of second route patterns corresponding to each of combinations of a plurality of second routes used in parallel, coupling the communication device to a second content server, select one of the plurality of the first and second route patterns based on the estimated plurality of the first and second throughputs, acquire an identical content from the first content server or the second content server using the selected one of the plurality of the first and second route patterns, and transmit the acquired identical content to a terminal device. | 09-25-2014 |
20140341127 | WIRELESS STATION, DATA TRANSMISSION METHOD, AND WIRELESS COMMUNICATION SYSTEM - A wireless station includes: a transmitter configured to transmit data to a terminal device by at least one of a first wireless communication method using a reserved first wireless resource, the first wireless communication method using a reserved second wireless resource being a different frequency band from the first wireless resource, and a second wireless communication method; and a processor coupled to the transmitter and configured to: perform transmission of the data by the first wireless communication method using the first wireless resource prioritized over at least one of the first wireless communication method using the second wireless resource and the second wireless communication method, and perform, when the remaining first wireless resource has become less than or equal to a first threshold value, transmission of the data by the at least one of the first wireless communication method using the second wireless resource and the second wireless communication method. | 11-20-2014 |