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 |
20090088134 | MOBILE STATION, RADIO ACCESS NETWORK APPARATUS MOBILITY SWITCHING STATION, MOBILE COMMUNICATION SYSTEM, AND COMMUNICATION SERVICE ACCESS METHOD - In order to decrease delay time until data sending and receiving for a mobile station that is registered and that is in an idle state, the system is configured such that, when the mobile station issues a request of a communication service, the mobile station specifies a requesting QoS identifier, and launches a validity verification procedure for the service request, and a procedure of a security mode setup is completed along with a response to the service request, and channel information assigned to the mobile station is reported. | 04-02-2009 |
20090103447 | RADIO COMMUNICATION METHOD AND RADIO BASE STATION APPARATUS BASED ON VARIABLE TTI LENGTH CONTROL - A controlling method and a radio base station apparatus capable of variably determining a Transmission Time Interval (TTI) length in accordance with a communication environment of a mobile terminal is disclosed. The radio base station apparatus includes a receiving section receiving information via an uplink channel; and a scheduler variably determining a Transmission Time Interval (TTI) length for any one of an uplink shared channel and a downlink shared channel or both based on at least any of a moving speed of a mobile terminal, location of the mobile terminal in a cell, a provided throughput value, and a number of retransmissions obtained from the received information. Preferably, the scheduler includes a TTI length allocation table describing relationships between parameter values and the corresponding TTI length, the parameters being used for estimating the location and/or the moving speed of the mobile terminal. | 04-23-2009 |
20090116424 | TRANSMISSION CONTROL METHOD, MOBILE STATION, AND RADIO BASE STATION - A packet communication method according to the present invention includes: transmitting, at a mobile station, a random access request that includes mobile station information assigned to the mobile station, to a radio base station through a random access channel allocated to a predetermined radio resource; receiving, at the radio base station, the random access request from the mobile station; and transmitting, at the radio base station, a random access response signal that notifies the receipt of the random access request and includes the mobile station information, to the mobile station through a downlink shared control channel corresponding to the random access channel. | 05-07-2009 |
20090117853 | MOBILE STATION, WIRELESS ACCESS NETWORK APPARATUS, MOBILE COMMUNICATION SYSTEM, AND INFORMATIVE INFORMATION TRANSMITTING/RECEIVING METHOD - A mobile station for establishing a signaling control channel and a shared data channel between a radio access network apparatus and the mobile station to perform communication includes discontinuous reception means configured to perform discontinuous reception of broadcast information using the signaling control channel, shared data channel reception determination means configured to determine whether to receive the shared data channel based on an item of broadcast information and information indicating presence or absence of change of content corresponding to the item of the broadcast information that are transmitted by the signaling control channel, and shared data channel reception means configured to receive the shared data channel according to the determination. | 05-07-2009 |
20090154404 | PACKET COMMUNICATION METHOD, MOBILE STATION, AND RADIO BASE STATION - A packet communication method includes: transmitting, from a mobile station to a radio base station through a random access channel, a random access request; allocating, at a radio base station, a packet access request transmission radio resource for transmitting, at the mobile station, a packet access request for requesting an initiation of a packet communication, from among radio resources allocated to uplink shared channels, in response to a receipt of the random access request; transmitting, at the radio base station, a response for notifying the receipt of the random access request and for notifying the packet access request transmission radio resource, to the mobile station through at least one of a downlink shared data channel and a downlink shared control channel corresponding to the random access channel; and transmitting, at the mobile station, the packet access request by using the packet access request transmission radio resource notified by the response. | 06-18-2009 |
20090170513 | MOBILE STATION, RADIO ACCESS NETWORK APPARATUS AND RESOURCE REQUEST METHOD - A mobile station includes an identifier selection unit selecting one identifier among identifiers supplied in advance when the mobile station initiates communications and a connection request signal generation unit generating a connection request signal including the identifier. A radio access network apparatus includes a response signal generation unit, in response to the connection request from the mobile station, generating a response signal including an identifier assigned by a radio access network system and information indicative of an uplink radio resource assigned for the mobile station and a transmission unit transmitting the response signal to the mobile station transmitting the connection request. | 07-02-2009 |
20090175245 | BASE STATION, MOBILE STATION, AND METHOD OF COMMUNICATING - A disclosed base station apparatus includes: a TTI-length determining unit which determines, based on downlink receive quality information transmitted from a mobile station, whether data is to be transmitted in a first TTI with, as a unit, a predetermined period no shorter than a subframe length, or in a second TTI with, as a unit, a period shorter than the first TTI; a number-of-subframes determining unit which determines a number of subframes making up the determined TTI; a reporting unit which reports the determined TTI and the number of subframes making up the determined TTI to the mobile station; and | 07-09-2009 |
20090190540 | RADIO RESOURCE ASSIGNING METHOD AND RADIO BASE STATION - A radio resource assigning method includes assigning persistently, at a radio base station, by a persistent scheduling. The radio resource is to be used for transmitting downlink data to a mobile station. The radio resource assigning method also includes changing, at the radio base station, by a dynamic scheduling, in a period when the persistent scheduling is applied. The radio resource is to be assigned to the mobile station. | 07-30-2009 |
20090201876 | CONTROLLER, MOBILE STATION, MOBILE COMMUNICATIONS SYSTEM AND CONTROL METHOD - A disclosed control apparatus performs packet communications with a mobile station and divides a coverage area into plural sectors so as to control the communications. The control apparatus comprises a transmission allocation portion that selects at least two transmission sectors to perform transmission to the mobile station in accordance with reception quality imparted from the mobile station so as to perform a transmission allocation for the mobile station; and a transmission portion that uses an identical scramble code for sector identification so as to perform transmission to the mobile station. | 08-13-2009 |
20090201902 | UPLINK CHANNEL RECEIVING AND TRANSMITTING APPARATUSES AND METHODS - A receiving apparatus receives control, pilot and data channels in an uplink. The apparatus includes a data-channel receiving unit for receiving the pilot channel in an antenna gain pattern of a multi-beam having multiple fixed directional beams with respectively different fixed directional directions or of a variable directional beam having a directional direction varying in accordance with the position of a mobile terminal; and a data-channel receiving unit for receiving the data channel in an antenna gain pattern of a multi-beam or a variable directional beam. | 08-13-2009 |
20090207788 | BASE STATION, MOBILE STATION, MOBILE COMMUNICATION SYSTEM, AND METHOD OF CONTROLLING CONTROL SIGNAL TRANSMISSION - A disclosed base station includes a transmission-rate determining unit for determining a transmission rate of a control channel for transmitting an upper-layer control signal, and a transmitter for allocating a predetermined bandwidth to the control channel for transmitting the upper-layer control signal according to the determined transmission rate, and transmitting the signal. | 08-20-2009 |
20090213786 | MOBILE STATION, A BASE STATION, A MOBILE COMMUNICATION SYSTEM AND A COMMUNICATION CONTROL METHOD - There is disclosed a mobile station performing packet communications with a base station, including: a reservation control signal generating unit configured to generate a reservation control signal, based on control information transmitted in advance of a data packet; and a reservation control signal transmission control unit configured to transmit the reservation control signal at a predetermined timing. | 08-27-2009 |
20090219862 | MOBILE STATION, WIRELESS ACCESS NETWORK APPARATUS, MOBILE COMMUNICATION SYSTEM, AND INTERMITTENT RECEPTION METHOD - A mobile station includes: means that performs discontinuous reception only for a signaling control channel, means that determines presence or absence of traffic data addressed to the own mobile station, and means that, when it is determined that there is traffic data addressed to the own mobile station, receives corresponding shared data channel. A radio access network apparatus includes: means that determines a discontinuous reception state, means that determines a discontinuous reception channel, means that reports the determined discontinuous reception channel to the mobile station, and means that, when transmission data arises, transmits a control signal using the determined discontinuous reception channel and that transmits traffic data using a corresponding shared data channel. | 09-03-2009 |
20090219914 | BASE STATION, MOBILE STATION, AND METHOD OF COMMUNICATING - A base station is disclosed. The base station includes a transmitting unit which variably controls a TTI length including multiple subframes, each of which is to be allocated to a mobile station, and transmits to the mobile station scheduling information which indicates allocation of wireless resources to each user; a receive-acknowledgment determining unit which determines whether a receive acknowledgment for the scheduling information is reported from the mobile station; and a shared-channel transmitting unit which transmits a shared channel if it is determined that the receive acknowledgment is received. | 09-03-2009 |
20090220079 | CONCEALING DEVICE AND CONCEALING METHOD - A security processing apparatus performs security processing in a MAC layer in a mobile communication system. The apparatus includes a mask generation unit generating a mask by using a security sequence number and a processing unit computing a logical operation on the mask and security target data to generate encrypted data. The security sequence number comprises a hyper frame number and a system frame number. The apparatus performs the security processing by using a transport block (TB) as one unit. The transport block is used as data transmission unit from a MAC layer to a physical layer per the unit time (TTI). Since HFN and SFN are used as the security sequence number, the security sequence number can be used uniformly over all RLC modes, and the out-of-synchronization of HFN can be avoided. | 09-03-2009 |
20090235137 | COMMUNICATION APPARATUS, COMMUNICATION METHOD AND PROGRAM - A communication apparatus includes an error detection unit conducting error detection on N packet data units received in N transmission processes; a first transmission unit transmitting an affirmative response signal or a first retransmission request signal depending on a result of the error detection; a storage unit storing an affirmatively responding packet for forwarding to an upper layer; a second transmission unit, if affirmatively responding packets are not consecutive, determining whether a missing packet must be retransmitted and transmitting a second retransmission request signal; and a forwarding unit reordering the packet data units and forwarding the packets in the storage unit to the upper layer. | 09-17-2009 |
20090262655 | MOBILE COMMUNICATION SYSTEM, MOBILE STATION, BASE STATION, AND CONTROL CHANNEL ALLOCATION METHOD - A disclosed mobile station includes a storage unit configured to establish a correspondence between an identifier for a downlink Layer-1 control channel associated with a downlink data channel and a physical channel parameter for an uplink Layer-1 control channel and to store the identifier and the physical channel parameter; and a unit configured to determine the physical channel parameter based on the identifier and generate the uplink Layer-1 control channel. A disclosed base station includes a storage unit; a unit configured to measure reception quality based on a signal transmitted from the mobile station, select the physical channel parameter and generate the downlink Layer-1 control channel corresponding to the physical channel parameter; and a transmitting unit configured to transmit control information on the generated downlink Layer-1 control channel. | 10-22-2009 |
20090271679 | RETRANSMISSION CONTROL METHOD AND RECEIVING-END APPARATUS - A retransmission control method according to the present invention includes; transmitting, at a transmitter side apparatus | 10-29-2009 |
20090275333 | RADIO ACCESS NETWORK DEVICE AND PERIPHERAL CELL INFORMATION REPORT METHOD - A radio access network device used in a mobile communication system is disclosed. The radio access network device includes a first cell identifier selection unit configured to select an identifier used as a first cell identifier; a second cell identifier selection unit configured to select identifiers used as second cell identifiers; and a neighboring cell information generating unit configured to generate neighboring cell information including the first cell identifier and the second cell identifiers. | 11-05-2009 |
20090323597 | CONTROL CHANNEL ALLOCATION APPARATUS, MOBILE COMMUNICATIONS SYSTEM, AND CONTROL CHANNEL ALLOCATION METHOD - A control channel allocation apparatus includes a memory portion that stores an identifier indicating a layer 1 control channel associated with a downlink data channel, and a physical channel parameter for transmitting an uplink layer 1 control channel, the identifier being related to the physical channel parameter; a physical layer parameter determination portion that determines the physical channel parameter for transmitting the uplink layer 1 control channel in accordance with the identifier; a layer 1 control channel generation portion that generates a layer 1 control channel indicating a decoding result of a data channel, in accordance with the determined physical channel parameter; and a transmission portion that transmits the generated layer 1 control channel. | 12-31-2009 |
20090323605 | BASE STATION, MOBILE STATION, AND COMMUNICATION METHOD - A base station for retransmitting a transmission packet in response to a retransmission request for the transmission packet from a mobile station includes a retransmission control unit configured to receive the retransmission request from the mobile station; a scheduling unit configured to determine an available packet size on the same logical channel as used for the transmission packet, when channel quality at the time of retransmitting the transmission packet in response to the retransmission request is improved compared to channel quality at the time of initially transmitting the transmission packet; a segmentation/concatenation unit configured to segment a packet to be transmitted on the same logical channel as used for the transmission packet based on the available packet size determined by the scheduling unit; and a multiplexing unit configured to multiplex the transmission packet to be retransmitted and the packet segmented by the segmentation/concatenation unit. | 12-31-2009 |
20100040064 | TRANSMITTER APPARATUS - A transmitter apparatus includes: an MAC-SDU receiver section ( | 02-18-2010 |
20100046442 | METHOD OF CONTROLLING TRANSMISSION PARAMETER CHANGE AND RADIO BASE STATION - A disclosed method of controlling a change of a transmission parameter including the steps of generating a control data unit which does not include a specification of the change timing for changing a parameter value of the transmission parameter for which processing all within a certain layer or sublayer is possible; transmitting the control data unit only in a first half of a transmission frame; and conducting transmission and/or reception, at a timing of a frame following a frame in which the control data unit was transmitted, based on the changed transmission parameter. | 02-25-2010 |
20100056164 | WIRELESS ACCESS CONTROL APPARATUS, MOBILE STATION AND METHOD - A radio access network apparatus includes: a discontinuous reception management unit configured to manage a reception state (a discontinuous reception state or a continuous reception state) for each of one or more mobile stations; a determination and announcement unit configured to determine and announce a correspondence relationship between a discontinuous reception channel and a shared data channel for each mobile station; and a scheduling unit configured to perform scheduling of a downlink shared data channel, wherein, when a paging signal to the mobile station in the discontinuous reception state occurs, the radio access network apparatus transmits the paging signal to the mobile station using the shared data channel determined based on the correspondence relationship. | 03-04-2010 |
20100056172 | BASE STATION, MOBILE STATION AND TARGET CELL DETERMINATION METHOD - One feature of the present invention relates to a base station for operating multiple cells each having a predefined bandwidth, including: a load measurement unit configured to measure traffic status in each of the cells; a redirected cell determination unit configured to determine either a redirected cell or a cell layer as redirected cell information for redirecting a mobile station based on the traffic status, the redirected cell and the cell layer to which the mobile station is to be redirected; and a transmission unit configured to transmit the redirected cell information to the mobile station in a paging channel. | 03-04-2010 |
20100069076 | MOBILE STATION, RADIO BASE STATION, MOBILE COMMUNICATION SYSTEM, AND METHOD OF TRANSMITTING AND RECEIVING BROADCAST INFORMATION - A radio base station for establishing a signaling control channel and a shared data channel for a mobile station and communicating with the mobile station includes a broadcast information generating unit configured to generate broadcast information including one or more information blocks; a scheduling information generating unit configured to generate scheduling information for the one or more information blocks; and a broadcast information transmitting unit configured to transmit the scheduling information as part of the broadcast information. | 03-18-2010 |
20100113081 | MOBILE STATION, RADIO ACCESS NETWORK APPARATUS, AND MOBILE COMMUNICATIONS SYSTEM - A radio access network apparatus is disclosed. The apparatus communicates with a mobile station using a dedicated uplink channel, a downlink shared data channel, and a downlink signaling control channel. The apparatus includes a dedicated uplink channel allocating unit which allocates, to a mobile station starting or restarting communications, on a downlink shared data channel, a dedicated uplink channel to be used by the mobile station; a dedicated channel reception detecting unit which detects, on the allocated dedicated uplink channel, a reception of an uplink transmission from the mobile station; and a downlink transmitting unit which, when the dedicated channel reception of the mobile station is detected, transmits a response to the mobile station using the downlink shared data channel and the downlink signaling control channel. | 05-06-2010 |
20100128672 | TRANSMITTER APPARATUS, RECEIVER APPARATUS, MOBILE STATION, AND RADIO BASE STATION - A transmitter apparatus ( | 05-27-2010 |
20100142453 | BASE STATION AND SCHEDULING METHOD - A base station ( | 06-10-2010 |
20100165854 | BASE STATION, USER EQUIPMENT, AND METHOD - A base station performing a radio communication with a user equipment includes a transmission format determining unit configured to determine a transmission format of a downlink data channel not to be associated by a control channel, based on a downlink reception signal quality measured by the user equipment, a notification unit configured to notify, to the user equipment, the transmission format determined by the transmission format determining unit, and a transmitting unit configured to transmit downlink data to the user equipment via the downlink data channel, by using the transmission format determined by the transmission format determining unit. | 07-01-2010 |
20100165950 | MOBILE STATION, BASE STATION, AND CELL SELECTION METHOD - In a disclosed method, a mobile station determines whether handover is intra-base-station based on a received signal; the mobile station sends a handover request indicating the determination result to a base station; the base station determines whether the handover is intra-base-station or inter-base-station based on the handover request; and the base station performs an intra-base-station handover process based on a CQI reception level threshold for intra-base-station handover if the handover is intra-base-station. | 07-01-2010 |
20100177716 | RADIO RESOURCE RELEASE CONTROLLING METHOD, RADIO BASE STATION, AND MOBILE STATION - A mobile station performing a voice communication by using a radio resource, including a determination unit configured to determine whether an inputted packet is in a talk-spurt state or in a silent state; a message generating unit configured to generate a resource release request, when the determination unit determines that the inputted packet is in the silent state; and a transmitting unit configured to transmit the resource release request to a radio base station. | 07-15-2010 |
20100183083 | OFDM SIGNAL TRANSMITTING APPARATUS AND OFDM SIGNAL RECEIVING APPARATUS - An OFDM signal receiving apparatus ( | 07-22-2010 |
20100188985 | MOBILE STATION, RADIO ACCESS NETWORK APPARATUS AND MOBILITY CONTROL METHOD - A mobile station includes a radio channel condition evaluation unit evaluating a radio channel condition; a radio channel condition averaging unit averaging the evaluated radio channel condition over a predefined time period; a radio channel condition threshold storage unit storing a threshold of the radio channel condition and a message type, the threshold and the message type being specified by a radio access network apparatus; a radio channel condition comparison unit comparing the averaged radio channel condition with the threshold; and a radio channel condition reporting unit transmitting an identifier and the radio channel condition for a cell to the radio access network apparatus, the averaged radio channel condition of the cell being greater than or equal to the threshold. A radio access network apparatus includes a radio channel condition threshold reporting unit transmitting a threshold of a reception level and information indicative of a reporting message type; a communicating cell switch unit instructing a communicating cell to be switched based on a radio channel condition supplied from a mobile station; and a mobile station identifier reporting unit transmitting a mobile station identifier for use in a destination cell based on the radio channel condition supplied from the mobile station. | 07-29-2010 |
20100208628 | MOBILE STATION, WIRELESS ACCESS NETWORK DEVICE, MOBILE COMMUNICATION SYSTEM, AND COMMUNICATION METHOD - A mobile communication system for performing two-way communication between a mobile station and a wireless access network apparatus. The mobile station comprises a connection setup signal reception timing calculating part that calculates the reception timing of a connection setup signal when a connection request signal is transmitted; and a connection setup signal determining part that determines, in accordance with the reception timing, whether the connection setup signal is received, and then performs, based on that determination, a reception process. The wireless access network apparatus comprises a connection setup signal scheduling part that performs, based on the reception timing of the connection request signal, a transmission assignment of the connection setup signal when the connection request signal is received from the mobile station; a connection setup signal creating part that creates the connection setup signal addressed to the mobile station; and a connection setup signal transmitting part that transmits, based on the transmission assignment, the connection setup signal. | 08-19-2010 |
20100210218 | BASE STATION, MOBILE STATION, AND REDIRECTED CELL DETERMINATION METHOD - One feature of the present invention relates to a base station for operating multiple cells each having a predefined bandwidth, including: a redirected cell determination unit configured to determine, in response to receipt of mobile station capability information indicative of at least one of a bandwidth and a frequency band that a mobile station residing in a coverage area of the base station is capable of handling, at least one of a redirected cell and a cell layer for the mobile station associated with the mobile station capability information as redirected cell information for redirecting the mobile station; and a transmission unit configured to transmit the redirected cell information to the mobile station. | 08-19-2010 |
20100232303 | BASE STATION AND METHOD - A base station (eNodeB) performing a radio communication with a user equipment (UE) includes: a transmission format determining unit ( | 09-16-2010 |
20100246510 | MOBILE COMMUNICATION METHOD, RADIO BASE STATION APPARATUS AND MOBILE STATION - A radio base station apparatus ( | 09-30-2010 |
20100291956 | BASE STATION, MOBILE STATION, AND CELL DETERMINATION METHOD - One feature of the present invention relates to a base station for operating multiple cells each having a predefined bandwidth, including: a load measurement unit configured to measure traffic status in each of the cells; a selection probability computation unit configured to compute a selection probability used to select a preselected cell based on the traffic status, the preselected cell being accessed by a mobile station in transition from an idle state to an active state; a transmission unit configured to transmit the selection probability; and a control plane control unit configured to connect to the preselected cell being accessed by the mobile station. | 11-18-2010 |
20100293427 | RADIO COMMUNICATIONS APPARATUS AND METHOD USED IN A MOBILE COMMUNICATIONS SYSTEM - A radio communications apparatus having a retransmission function that has a determination portion configured to receive an error detection result obtained for a first packet transmitted to a destination apparatus and determine in a first sub-layer whether the error detection result is a positive acknowledgement; a transmission portion configured to transmit a second packet following the first packet to the destination apparatus; a timer portion configured to measure a predetermined period of time after the second packet is transmitted; and a report portion configured to report to a second sub-layer that is an upper sub-layer of the first sub-layer that the error detection result is the positive acknowledgement when no message is received from the destination apparatus during the predetermined period of time, the message indicating that the error detection result is falsely determined to be the positive acknowledgement. | 11-18-2010 |
20110149771 | MOBILE STATION AND RADIO BASE STATION - A mobile station (UE) according to the present invention includes: a CP length determiner unit ( | 06-23-2011 |
20110149840 | TRANSMITTER APPARATUS, RECEIVER APPARATUS, MOBILE STATION, RADIO BASE STATION, MOBILE COMMUNICATION SYSTEM AND MOBILE COMMUNICATION METHOD - A transmitter ( | 06-23-2011 |
20110261772 | MOBILE COMMUNICATION SYSTEM - In a mobile communication system according to the present invention, a radio base station (eNB) is configured to transmit broadcast information including a parameter to which a frequency bandwidth used in the mobile communication system is set; a mobile station (UE# | 10-27-2011 |
20110317745 | MOBILE COMMUNICATION SYSTEM, RADIO BASE STATION, AND MOBILE STATION - In a mobile communication system according to the present invention, a reference signal sequence includes a plurality of signal sequences assigned in slot units in the predetermined physical channel based on a hopping pattern and a sequence shift pattern; the hopping pattern is configured to be determined based on a slot number and an SFN in the predetermined physical channel or the predetermined physical signal; the sequence shift pattern is configured to be determined based on the identification information of the cell to which the predetermined physical channel or the predetermined physical signal has been set; and the hopping cycle is configured to be determined based on a cycle of the slot number and an SFN cycle. | 12-29-2011 |
20120003977 | MOBILE COMMUNICATION METHOD AND RADIO BASE STATION - A mobile communication method according to the present invention includes steps of: performing, at a mobile station (UE) having established a first connection in a first cell, a cell selection process when detecting failure in the first connection; transmitting, from the mobile station (UE) to a second cell selected by the cell selection process, a connection re-establishment request signal; determining, at the radio base station managing the second cell, whether or not to have stored context information of the mobile station (UE) having transmitted the connection re-establishment request signal; acquiring, at the radio base station managing the second cell, the context information of the mobile station from a radio base station managing the first cell, when the radio base station managing the second cell determines that it does not store the context information of the mobile station (UE). | 01-05-2012 |
20120003995 | MOBILE COMMUNICATION METHOD, RADIO BASE STATION AND MOBILE STATION - A radio base station according to the present invention includes: a downlink data resumption processing unit configured to transmit an RA preamble assignment signal to a mobile station, when a positioning trigger is detected in a state in which no synchronization is established in an uplink between the radio base station and the mobile station; and a propagation delay calculation unit configured to calculate propagation delay in the uplink, in response to reception of a RA preamble assigned by the RA preamble assignment signal. | 01-05-2012 |