Patent application number | Description | Published |
20080232324 | Handover Control Method - During handover, an origin base station saves data packets for a mobile station, as well as instructs the mobile station to switch communication to a destination base station, and requests a host station to switch the base station that communicates with that mobile station from the origin base station to the destination base station. After that, when in accordance to the switching request it is possible to save data packets, the host station begins to save the data packets for the mobile station in the place of the origin base station, and after communication between the mobile station and the destination base station has become possible, sends the saved data packets to the mobile station via the destination base station. | 09-25-2008 |
20080254802 | MOBILE CONTROL DEVICE AND HANDOVER CONTROL METHOD - The present invention is a handover control method in a mobile communication system that performs handover control by switching base stations that communicate with a mobile terminal as the mobile terminal moves. In this handover control method, a mobile control device selects one or more handover base station candidates based on the communication state, and based on the communication capabilities of the handover base station candidates, decides a transmission rate for multicasting communication data, and transmits communication data to each of the handover base station candidates at the decided transmission rate, and a handover base station candidate that is decided as a handover base station sends the saved multicast communication data to the mobile terminal. | 10-16-2008 |
20090041000 | Communication Apparatus, Transmitting Method and Receiving Method - A communication apparatus that performs receiving processing of data transmitted at timings of a predetermined interval, the communication apparatus having a transmitting unit configured to transmit a signal indicating that a data is successfully received when the data transmitted at M | 02-12-2009 |
20090111387 | RADIO COMMUNICATION DEVICE AND RADIO COMMUNICATION METHOD - A control method in a radio communication system wherein a radio communication device transmits, to another radio communication device, a predetermined signal that gives an opportunity to the other radio communication device to detect a change of a rule to be applied from a first rule to a second rule. The method includes transmitting, from the radio communication device, a paging signal at a timing specified by the first rule and a timing specified by the second rule and receiving, by the other radio communication device, the paging signal at the timing specified by the first rule when the predetermined signal was transmitted by the radio communication device to the other radio communication device but not received by the other radio communication device. | 04-30-2009 |
20090131070 | WIRELESS COMMUNICATION SYSTEM, BASE STATION DEVICE AND MOBILE STATION DEVICE - A wireless communication system comprises a mobile station and a base station, which use a plurality of communication channels and a pilot channel corresponding to at least one of the communication channels. The base station has a transmitting unit that employs at least one of the communication channels as a priority channel and transmits channel information of this priority channel and the other channels by use of a communication channel other than the pilot channel. The mobile station has a determining unit that determines a reception level of the pilot channel; an acquiring unit that acquires the channel information transmitted via the communication channel other than the pilot channel; and a deciding unit that decides, as an available communication channel, at least one of the communication channels based on both the channel information acquired by the acquiring unit and the reception level determined by the determining unit. | 05-21-2009 |
20090168714 | RADIO COMMUNICATION APPARATUS AND CONTROL METHOD FOR RADIO COMMUNICATION SYSTEM - A control method for a radio communication system, wherein a first apparatus transmits a radio signal used to select a radio resource to a second apparatus and when the second apparatus receives a radio signal for requesting allocation of a radio resource from the first apparatus, the second apparatus selects a radio resource to be allocated to the first apparatus based on a radio signal used to select the radio resource and transmits information of the selected radio resource to the first apparatus Consequently, the first apparatus transmits transmission data by using the radio resource specified by the information. The method includes regulating transmission of the radio signal used to select the radio resource to be allocated when the first apparatus receives a particular signal from the second apparatus. | 07-02-2009 |
20090170443 | RADIO COMMUNICATION SYSTEM AND APPARATUS - A radio communication system in which a first radio communication apparatus selects a transmission format from among a plurality of transmission formats to transmit data according to a selected transmission format and a second radio communication apparatus receives the data transmitted from the first radio communication apparatus. The first radio communication apparatus including a control signal generator to generate a control signal for notifying the second radio communication apparatus of a change of a trend of a transmission format to be applied and a radio transmitter to transmit the generated control signal. The second radio communication apparatus including a receiving processor which switches a candidate of receiving formats used for finding a receiving format to obtain a normal reception result based on the control signal. | 07-02-2009 |
20090175241 | METHOD FOR DROPPING PACKET DATA, RADIO COMMUNICATION DEVICE, AND MOBILE COMMUNICATION SYSTEM - A control method in a mobile communication system with a buffer unit for temporarily storing packet data to be sent, includes dropping the packet data stored in the buffer unit before sending when a drop timer corresponding to the packet data before sending reaches a given value or when a drop condition required by a drop mechanism accompanying the buffer unit is satisfied, and dropping the packet data stored in the buffer unit after sending when a drop timer corresponding to the packet data after sending reaches a given value. | 07-09-2009 |
20090185539 | Handover Method and Base Station - To provide a method for suitably enabling the resources of a handover-source base station to be released and the post-handover processes of a handover-destination base station to be executed by securely determining a transfer of Last Packet without increasing a packet transmission delay in a handover process in a mobile communication system where a mobile station makes a communication with packets, a base station is provided with a Last Packet determination timer, and the handover source base station or the handover-destination base station activates the timer upon receipt of a handover completion acknowledgment transmitted from an upper node station or according to a resource release instruction after the reception of the handover completion acknowledgment, and determines that Last Packet has been received, upon expiration of the timer. | 07-23-2009 |
20090204864 | TRANSMISSION CONTROLLING METHOD, SENDER APPARATUS AND RECEIVER APPARATUS FOR WIRELESS COMMUNICATION SYSTEM - In a wireless communication system, a sender apparatus sends a data block, for each of a plurality of stream data, with data block identification information, which does not conflict between stream data, annexed, and a reception apparatus performs a re-sending synthesis process for a data block received already and a re-sending data block to which the same data block identification information is individually annexed based on the data block identification information annexed to the received data block. Consequently, also in a case wherein the number of transmission streams between the sender apparatus and the reception apparatus is varied (reduced), the matching property of the data block which is a re-sending synthesis target can be maintained and communication can be continued normally. | 08-13-2009 |
20090264132 | INTERMITTENT COMMUNICATION SYSTEM, BASE STATION APPARATUS AND MOBILE STATION APPARATUS - In an intermittent communication system where an intermittent communication can be made between a base station and a mobile station, a transmitting unit of the mobile station transmits a request to start a normal communication after stopping an intermittent communication at timing different from the intermittent communication if a handover is determined to be required. A transiting unit transits from the intermittent communication to the normal communication after the transmitting unit transmits the request. A handover performing unit performs a handover upon completion of transition to the normal communication by the transiting unit. | 10-22-2009 |
20090270094 | Radio base station, mobile station, and communication method - A radio base station improved in the efficiency of processing random accesses from mobile stations. The radio base station designates a random access signal when transmitting downlink data to a mobile station. The mobile station transmits the designated random access signal to the radio base station. The radio base station transmits, to the mobile station, timing adjustment information prepared based on the result of reception of the random access signal and allocation information about an uplink radio resource allocated to the mobile station. If there is control data to be transmitted to the radio base station, the mobile station transmits the control data by using the allocated uplink radio resource, and if there is no control data to be transmitted, the mobile station transmits a synchronization completion report prepared in reply to the timing adjustment information. | 10-29-2009 |
20090323533 | BASE STATION, MOBILE STATION, COMMUNICATION SYSTEM, AND REORDERING METHOD THEREOF - Disclosed is a reordering method for sending packets, to which numbers indicating sequence are attached, from a base station to a mobile station, and rearranging the packets in order of the sequence number in the mobile station. When a handover source base station transfers packets which have not been sent to the mobile station, out of packets received from a host station, to a handover target base station, and the handover target base station sends the packets to the mobile station, data is sent from the handover source base station to the mobile station to notify that transference of the packets has been executed at the execution of handover sequence. The mobile station executed, reordering of the received packets when the transference of the packets has been executed. | 12-31-2009 |
20100035622 | TERMINAL APPARATUS, BASE STATION APPARATUS DETECTION METHOD, WIRELESS COMMUNICATION SYSTEM, AND BASE STATION APPARATUS - A terminal apparatus in a wireless communication system having a first and second base station group, and for which access is permitted for a specific base station, and not for a base station other than the specific base station, in the base station belonging to the second base station group, including: a reception unit which receives an identifier from any of base stations belonging to the first base station group; and a detection unit which executes base station detection processing for the second base station group, if the received identifier is an identifier of a base station corresponding to the specific base station in the base station belonging to the first base station group, and restrict execution of the base station detection processing, if not the identifier of the base station corresponding to the specific base station in the base station belonging to the first base station group. | 02-11-2010 |
20100039996 | BASE STATION, MOBILE STATION, COMMUNICATION SYSTEM, TRANSMISSION METHOD AND REORDERING METHOD - A reordering method of sending packets, to which numbers indicating the packet order are added, to a mobile station from a base station, and rearranging the order of the packets at the mobile station, this includes forwarding from a source base station to a target base station, packets, not sent to the mobile station before a handover sequence, or packets, a confirmation response of proper reception has not been received from the mobile station, transmitting preferentially those packets from the target base station to the mobile base station and then transmitting packets received from a host station to the mobile station, giving packets information indicating that the packets are jump packets when transmitting the packets to the mobile station, received from the host station with the order jumped, deciding jump packets are not objects of reordering, and performing the reordering process for packets that are objects of reordering. | 02-18-2010 |
20100056155 | WIRELESS BASE STATION APPARATUS, WIRELESS MOBILE STATION APPARATUS, AND TRANSMISSION CONTROL METHOD FOR RANDOM ACCESS SIGNAL - A wireless base station apparatus includes a reporting unit which reports information on a first transmission area that allows transmission of a random access signal. Accordingly, the first transmission area is wholly reported to mobile station apparatuses within an area of the wireless base station apparatus. That is, both a mobile station apparatus in a non-handover state and a mobile station apparatus in a handover state receive the first transmission area information (report information) and use the first transmission area as a transmission area for transmitting a random access signal to the wireless base station apparatus. The wireless base station apparatus also has a notifying unit which notifies a second transmission area to a mobile station apparatus in a handover state, the second transmission area being different from the first transmission area reported by the reporting unit of the handover-destination wireless base station apparatus. | 03-04-2010 |
20100080194 | RADIO BASE STATION AND MOBILE STATION - A radio environment acquirer acquires a radio environment condition of radio communication with a subordinate mobile station. A transmitter transmits, to the mobile station, information notifying a signal which is selected from among multiple signal groups and which is to be transmitted in a transmission area of a random access signal, and a notification of a period over which transmission of the signal as the random access signal is permitted. The period is variable in accordance with the radio environment condition acquired by the radio environment acquirer. | 04-01-2010 |
20100099414 | MOBILE STATION APPARATUS AND CELL SELECTING METHOD - A mobile station apparatus, which is used in a mobile communication system including plural base stations, includes a receiver that receives a first signal from any one of the base stations of a first cell group covering a relatively large area and of a second cell group covering a relatively small area; a determining unit that determines an intermittent receiving cycle based on the received first signal; and a setting unit that, based on the determined intermittent receiving cycle, selects a cell group from among the first cell group and the second cell group, and sets the receiver to perform intermittent reception of a second signal transmitted from a base station belonging to the selected cell group. | 04-22-2010 |
20100118788 | METHOD FOR RANDOM ACCESS IN WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION SYSTEM, WIRELESS TERMINAL, AND BASE STATION UNIT - In the event of detecting first information used for first random access and second information used for second random access, the second information being received from the base station unit, a wireless terminal selects one between the first information and the second information. Thereby, either one of the random accesses can be selectively performed, efficiently using resources such as signatures used for random access. | 05-13-2010 |
20100232394 | MOBILE CONTROL DEVICE AND HANDOVER CONTROL METHOD - The present invention is a handover control method in a mobile communication system that performs handover control by switching base stations that communicate with a mobile terminal as the mobile terminal moves. In this handover control method, a mobile control device selects one or more handover base station candidates based on the communication state, and based on the communication capabilities of the handover base station candidates, decides a transmission rate for multicasting communication data, and transmits communication data to each of the handover base station candidates at the decided transmission rate, and a handover base station candidate that is decided as a handover base station sends the saved multicast communication data to the mobile terminal. | 09-16-2010 |
20110019633 | CONNECTION PROCESSING METHOD IN WIRELESS COMMUNICATION SYSTEM, WIRELESS BASE STATION, AND WIRELESS TERMINAL - In a wireless communication system, a wireless base station, if rejecting a connection to a wireless terminal that makes a connection request in accordance with a first connection processing, controls to adopt a second connection processing different from the first connection processing in response to a subsequent connection request by the wireless terminal. | 01-27-2011 |
20110069800 | TIMING ADJUSTMENT METHOD, USER EQUIPMENT, BASE STATION, AND MOBILE COMMUNICATION SYSTEM - In response to receiving second transmission timing adjustment information during connection processing while the user equipment is performing the connection processing to the base station based on first transmission timing adjustment information, the first transmission timing adjustment information is applied to transmission timing adjustment for transmission processing until a valid term of the first transmission timing adjustment information; and the second transmission timing adjustment information is applied to transmission timing adjustment for transmission processing after the valid term of the first transmission timing adjustment information. | 03-24-2011 |
20110183701 | TIMING ADJUSTMENT METHOD, USER EQUIPMENT, BASE STATION, AND MOBILE COMMUNICATION SYSTEM - A timing adjustment method in a mobile communication system having a user equipment and a base station, that performs transmission processing based on transmission timing adjustment information in the user equipment and allocates a plurality of parameters related to a physical uplink control channel (PUCCH) resource used for transmission processing, between the user equipment and the base station. Additionally, if a valid term of first transmission timing adjustment information expires before transmission processing of a signal including identification information of the user equipment is performed during connection processing while the user equipment is performing the connection processing to the base station based on the first transmission timing adjustment information, aborting the connection processing and releasing at least one of the allocated plurality of parameters related to the PUCCH resource. | 07-28-2011 |
20110281576 | BASE STATION, MOBILE STATION, AND LINK ESTABLISHING METHOD - A link establishing method to be implemented in a radio communication system sends a notifying signal notifying a plurality of radio resources from a base station when the base station judges that a collision of requests from a plurality of mobile stations has occurred, depending on a call request signal or a first connection request signal, and sends a second connection request signal from the mobile station using one radio resource selected from the plurality of radio resources notified by the notifying signal. | 11-17-2011 |
20120069735 | WIRELESS COMMUNICATION SYSTEM - A wireless communication system includes a relay station, first and second wireless base stations, a gateway device, and a mobile station. The gateway device is connected to the first and second wireless base stations by a cable. The first and second wireless base stations are interconnected by a cable. The relay station is connected wirelessly to the first wireless base station to perform relayed communication via the first wireless base station. When the mobile station at a lower level than the relay station executes handover to the second wireless base station, the first wireless base station switches a data transfer route by redirecting data which is not yet completely transmitted to the mobile station, to be forwarded to the second wireless base station. | 03-22-2012 |
20120083274 | RADIO COMMUNICATION SYSTEM - A radio communication system includes a relay station, a first radio base station, second radio base stations, and a mobile station. The relay station is connected by radio to the first radio base station and communicates with the second radio base stations via the first radio base station. When the relay station communicates with the second radio base stations, the relay station requests the first radio base station to communicate with the second radio base stations for the relay station. The requested first radio base station communicates with the second radio base stations for the relay station and transmits a communication result to the relay station. | 04-05-2012 |
20120083275 | RADIO COMMUNICATION SYSTEM - A method used in a radio communication system including a first radio base station, a second radio base station that communicates with the first radio base station, a relay station which communicates with the second radio base station via the first radio base station, and a mobile station, the method transmits a request, by the second radio base station, for requesting the first radio base station to communicate with the relay station for the second radio base station and communicating, by the requested first radio base station, with the relay station for the second radio base station and transmits a communication result to the second radio base station. | 04-05-2012 |
20120087289 | COMMUNICATION SYSTEM, BASE STATION, MOBILE TERMINAL, AND COMMUNICATION METHOD - A communication system transmits a paging signal from a base station to a mobile terminal, via a designated carrier among multiple carriers. The communication system includes the base station that transmits the paging signal via the designated carrier, and further transmits via a carrier that is among the carriers and not the designated carrier, information that indicates the designated carrier; and the mobile terminal that based on the information received via a carrier to which the mobile terminal is connected, connects to the designated carrier and receives the paging signal transmitted via the designated carrier. | 04-12-2012 |
20120099534 | COMMUNICATION APPARATUS, TRANSMITTING METHOD AND RECEIVING METHOD - A receiving method and apparatus that performs receiving processing of data transmitted at timings of a predetermined interval. The method and apparatus includes transmitting a signal indicating that a data is successfully received when the data transmitted at M | 04-26-2012 |
20120108280 | WIRELESS COMMUNICATION SYSTEM, BASE STATION, MOBILE STATION, AND WIRELESS COMMUNICATION METHOD - A wireless communication system includes a mobile station, which has a selector that from among prepared signal sequences, selects one or more arbitrary signal sequences and from among intervals included in a given period, selects one or more arbitrary intervals, and further has a transmitter that transmits the signal sequence corresponding to the interval selected by the selector. The wireless communication system further includes a base station, which has a receiver that receives a signal transmitted from the mobile station, and an identifier that identifies the mobile station, based on a correspondence value in each interval of the received signal. | 05-03-2012 |
20120129455 | INTERMITTENT COMMUNICATION SYSTEM, BASE STATION APPARATUS AND MOBILE STATION APPARATUS - A method for an intermittent communication system where an intermittent communication can be made between a base station apparatus and a mobile station apparatus, that includes the mobile station apparatus's transmitting information based on a result of measuring a reception signal received in the intermittent communication, and changing a reception frequency of the intermittent communication. | 05-24-2012 |
20120182971 | BASE STATION, MOBILE STATION, COMMUNICATION SYSTEM, TRANSMISSION METHOD AND REORDERING METHOD - A mobile station, that includes a receiving means for receiving first PDCP PDU from a source base station and a receiving means for receiving second PDCP-PDU from a target base station, in which the second PDCP-PDU being created using sequence number and PDCP SDU that are transferred from the source base station to the target base station and a storage means for storing PDCP SDU conforming to the first PDCP PDU and the PDCP SDU conforming to the second PDCP PDU; and a reordering means for performing in order delivery of the stored PDCP SDUs based on the sequence numbers. | 07-19-2012 |
20120243624 | TRANSMISSION CONTROLLING METHOD, SENDER APPARATUS AND RECEIVER APPARATUS FOR WIRELESS COMMUNICATION SYSTEM - A transmission controlling method for a wireless communication system wherein a plurality of data blocks can be transmitted from a sender apparatus having a plurality of sending antennas to a receiver apparatus, the transmission controlling method includes on the sender apparatus, sending process information which is not competitive between data blocks to the receiver apparatus with a control channel; and sending the data block to the receiver apparatus; and on the receiver apparatus, receiving the data block and the process information from the sender apparatus. | 09-27-2012 |
20120250628 | METHOD FOR RANDOM ACCESS IN WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION SYSTEM, WIRELESS TERMINAL, AND BASE STATION UNIT - A method for random access in a wireless communication system communicating between a base station and a wireless terminal, the method consists of: at the wireless terminal, selecting first information used for first random access or second information used for second random access and performing a data communication with the base station during or after the completion of random access using selected information. | 10-04-2012 |
20120250776 | TRANSMISSION CONTROLLING METHOD, SENDER APPARATUS AND RECEIVER APPARATUS FOR WIRELESS COMMUNICATION SYSTEM - A transmission controlling method for a wireless communication system wherein a plurality of data blocks can be transmitted from a sender apparatus having a plurality of sending antennas to a receiver apparatus, the transmission controlling method including on the sender apparatus, sending process information which prevent plurality of data blocks from competing to the receiver apparatus with a control channel; and on the receiver apparatus, combining, based on the process information, the data block received already and a re-sent data block. | 10-04-2012 |
20120257578 | METHOD FOR RANDOM ACCESS IN WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION SYSTEM, WIRELESS TERMINAL, AND BASE STATION UNIT - Random access in a wireless communication system including a base station and a wireless terminal, whereby at the wireless terminal, selecting first information used for first random access or second information used for second random access; and transmitting, during or after the completion of random access using selected information, third information with a response message to be transmitted to the base station during random access using information which is not selected. | 10-11-2012 |
20120257595 | METHOD FOR RANDOM ACCESS IN WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION SYSTEM, WIRELESS TERMINAL, AND BASE STATION UNIT - Random access in a wireless communication system including a base station and a wireless terminal, whereby at the wireless terminal, performing first random access scheme using a first random access preamble or second random access scheme using a second random access preamble which is received from the base station. | 10-11-2012 |
20120263115 | METHOD FOR RANDOM ACCESS IN WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION SYSTEM, WIRELESS TERMINAL, AND BASE STATION UNIT - A wireless communication system including a base station and a wireless terminal, the method includes at the wireless terminal, selecting first information used for first random access or second information used for second random access; and transmitting, during or after the completion of random access using selected information, third information to be transmitted to the base station during random access using information which is not selected, the third information being used by the wireless terminal until the random access using information which is not selected is finished. | 10-18-2012 |
20120263133 | METHOD FOR RANDOM ACCESS IN WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION SYSTEM, WIRELESS TERMINAL, AND BASE STATION UNIT - Random access in a wireless communication system including a base station and a wireless terminal, whereby at the wireless terminal, selecting first information used for first random access or second information used for second random access. | 10-18-2012 |
20120287909 | METHOD FOR DROPPING PACKET DATA, RADIO COMMUNICATION DEVICE, AND MOBILE COMMUNICATION SYSTEM - A mobile communication system, that includes a buffer storing packet data to be sent; and a controller configured for discarding the packet data according to a value of a timer corresponding to the packet data, maintaining the value of the timer corresponding to the packet data when a handover is performed without restarting or resetting the value of the timer, wherein the discarding further includes discarding the corresponding packet data when the value of the timer reaches a given value. | 11-15-2012 |
20120294151 | METHOD FOR DROPPING PACKET DATA, RADIO COMMUNICATION DEVICE, AND MOBILE COMMUNICATION SYSTEM - A control method in a mobile communication system, that includes configuring a timer corresponding to packet data for discarding the packet data according to a value of the timer; maintaining the value of the timer corresponding to the packet data when a handover is performed without restarting or resetting the value of the timer; and discarding the corresponding packet data when the maintained value of the timer reaches a given value. | 11-22-2012 |
20120294284 | METHOD FOR DROPPING PACKET DATA, RADIO COMMUNICATION DEVICE, AND MOBILE COMMUNICATION SYSTEM - A control method in a mobile communication system, that includes configuring a discard timer corresponding to a service data unit (SDU) for discarding the SDU according to a value of the timer; maintaining the value of the discard timer corresponding to the SDU when a handover is performed without restarting or resetting the value of the discard timer; and discarding the corresponding SDU when the maintained value of the discard timer reaches a given value. | 11-22-2012 |
20120329463 | MOBILE COMMUNICATION SYSTEM, CELL SELECTION METHOD, BASE STATION APPARATUS, AND MOBILE STATION APPARATUS - A mobile communication system includes plural base stations forming cells and a mobile station disposed in one of the cells and wirelessly communicating with one of the plural base stations. One of the plural base stations includes a cell group information broadcast unit broadcasting plural cell group information items which are information indicating a relationship between moving directions and cell groups, and the mobile station includes a cell group information selection unit selecting a cell group information item corresponding to an estimated moving direction of the mobile station out of the plural cell group information items broadcast by the one of the plural base stations, and a standby cell selection unit selecting, as a new standby cell, a cell having a receiving state satisfying a desired condition from among cells included in the selected cell group information item. | 12-27-2012 |
20130003586 | MOBILE COMMUNICATION SYSTEM, RELAY CONTROL METHOD, RELAY STATION APPARATUS, AND BASE STATION APPARATUS - A mobile communication system includes a base station, a mobile station, and a relay station. The mobile station includes a transmitter transmitting a random access request to the base station. The relay station includes a transmission information acquisition unit receiving a random access response from the base station and acquiring transmission information of a connection establishment request out of the random access response, and a relay report unit measuring a received state of the connection establishment request and transmitting relay information including the received state to the base station and the base station includes a comparison determinator comparing a received state of the connection establishment request measured by the base station with a measurement information of the received state in the received relay information and determining whether the relay station is used to relay radio communications with the mobile station. | 01-03-2013 |
20130121254 | TIMING ADJUSTMENT METHOD, USER EQUIPMENT, BASE STATION, AND MOBILE COMMUNICATION SYSTEM - A mobile communication system having a user equipment that performs transmission process having transmission timing adjustment information and a base station that receives a signal sent from the user equipment, the mobile communication system includes, if a timer controlling a term of application of first transmission timing adjustment information expires before transmission of a signal including identification information of the user equipment is performed during a connection process including reception of second transmission timing adjustment information while the user equipment has the first transmission timing adjustment information and performing the connection process to the base station, the user equipment does not transmit the signal. | 05-16-2013 |
20130121319 | TIMING ADJUSTMENT METHOD, USER EQUIPMENT, BASE STATION, AND MOBILE COMMUNICATION SYSTEM - A timing adjustment method in a mobile communication system that performs an adjustment of uplink transmission timing by random access between a user equipment and a base station, the timing adjustment method that includes performing transmission having transmission timing adjustment information in the user equipment; allocating a plurality of parameters related to a physical uplink control channel (PUCCH) resource used for communications, between the user equipment and the base station; and if a timer controlling a term of uplink transmission timing adjustment information expires during uplink communications to the base station having the uplink transmission timing adjustment information in the user equipment, releasing only a part of the allocated plurality of parameters related to the PUCCH resource. | 05-16-2013 |
20130129002 | TRANSMISSION CONTROLLING METHOD, SENDER APPARATUS AND RECEIVER APPARATUS FOR WIRELESS COMMUNICATION SYSTEM - A wireless communication system including a sender apparatus having a plurality of transmitting antennas that performs MIMO transmission of a plurality of data blocks; and a receiver apparatus that receives the plurality of data blocks. The sender apparatus transmits a process number via a control channel different from a data channel to the receiver apparatus, and wherein when the MIMO diversity transmission is performed, the receiver apparatus performs HARQ processing in the received data blocks based on not a process number which prevents the data blocks from competing but the received process number from the sender apparatus. | 05-23-2013 |
20130129003 | TRANSMISSION CONTROLLING METHOD, SENDER APPARATUS AND RECEIVER APPARATUS FOR WIRELESS COMMUNICATION SYSTEM - A wireless communication system including a sender apparatus having a plurality of transmitting antennas that transmits a plurality of data blocks; and a receiver apparatus that receives the plurality of data blocks, wherein the sender apparatus transmits a process number via a control channel different from a data channel to the receiver apparatus, and wherein the receiver apparatus performs HARQ processing of received data blocks based on the received process number which prevents the data blocks from competing. | 05-23-2013 |
20130182668 | METHOD FOR PROCESSING CARRIER STATE IN CARRIER AGGREGATION SYSTEM, AND USER EQUIPMENT - A method for processing carrier state in a carrier aggregation system and a User Equipment (UE) are provided, so as to avoid the random access failure caused by current deactivation mode of the Secondary Component Carrier (SCC). In one embodiment of the present invention, the method includes: performing a random access on a SCCs pair; stopping or ignoring a deactivation timer of a downlink SCC of the SCCs pair before the random access succeeds. | 07-18-2013 |
20130195077 | BASE STATION, MOBILE STATION, COMMUNICATION SYSTEM, AND REORDEREING METHOD THEREOF - A mobile station in a communication system for sending packets, to which numbers indicating sequence are attached, from a base station to a mobile station and performing delivery of the packets in order of the sequence number in the mobile station, includes a buffer which stores packets received from both a source base station and a target base station; and a control unit which performs the delivery of the stored packets in order of the sequence number at the handover procedure based on information indicating whether packets which are not sent from the source base station to the mobile station, are forwarded from a source base station to a target base station is set, the information being received from the source base station. | 08-01-2013 |
20130195079 | CONTENTION-BASED UPLINK DATA TRANSMISSION METHOD, APPARATUS AND SYSTEM - A contention-based uplink data transmission method, apparatus and system are provided. The method may include that: a main control node in a communication system receives data transmitted via uplink contention transmission resources, and decodes the data, wherein the uplink contention transmission resources are uplink transmission resources which the main control node allocates to a plurality of terminal nodes in the communication system and via which the plurality of terminal nodes transmits data in a contention-based way; and the main control node sends reception status information to each terminal node transmitting the data via the uplink contention transmission resources, wherein the reception status information reflects whether the data transmitted from each terminal node has been decoded successfully. | 08-01-2013 |
20130230002 | TIMING ADJUSTMENT METHOD, USER EQUIPMENT, BASE STATION, AND MOBILE COMMUNICATION SYSTEM - A base station in a mobile communication system containing a user equipment and the base station that includes an uplink (UL) resource management unit that allocates a plurality of parameters related to a physical uplink control channel (PUCCH) resource used for transmission processing, between the user equipment and the base station; a reception processing unit that receives a signal sent from the user equipment including a transmission processing unit that performs transmission processing based on transmission timing adjustment information; and a control unit that, if a valid term of first transmission timing adjustment information expires before transmission processing of a signal including identification information of the user equipment is performed during connection processing while performing the connection processing to the base station based on the first transmission timing adjustment information, aborts the connection processing and releases at least one of the allocated plurality of parameters related to the PUCCH resource. | 09-05-2013 |
20130250860 | BASE STATION, MOBILE STATION, COMMUNICATION SYSTEM, TRANSMISSION METHOD AND REORDERING METHOD - A radio communication system, that includes, a source base station; a target base station; and a mobile station in which the mobile station includes a receiving means for receiving first PDCP (Packet Data Convergence Protocol) PDU (Protocol Data Unit) and first sequence number from the source base station and a receiving means for receiving second PDCP PDU from the target base station, in which the second PDCP PDU being created using second sequence number and PDCP (Packet Data Convergence Protocol) SDU (Service Data Unit) that are transferred from the source base station to the target base station; a storage means for storing PDCP SDU corresponding to the first PDCP PDU and PDCP SDU corresponding to the second PDCP PDU; and a reordering means for performing in order delivery of the stored PDCP SDUs based on the first sequence number and the second sequence number. | 09-26-2013 |
20130250862 | BASE STATION, MOBILE STATION, COMMUNICATION SYSTEM, TRANSMISSION METHOD AND REORDERING METHOD - A mobile station that includes a receiving means for receiving first PDCP (Packet Data Convergence Protocol) PDU (Protocol Data Unit) to which a first sequence number is added from a source base station; a receiving means for receiving second PDCP PDU from a target base station that applies a second sequence number transferred from the source base station as a sequence number of PDCP (Packet Data Convergence Protocol) SDU (Service Data Unit) received from a host station and creates the second PDCP PDU and a storage means for storing PDCP SDU corresponding to the first PDCP PDU and PDCP SDU corresponding to the second PDCP PDU and means for performing in order delivery of the stored PDCP SDUs based on the sequence numbers corresponding to the PDCP SDUs. | 09-26-2013 |
20130250912 | BASE STATION, MOBILE STATION, COMMUNICATION SYSTEM, TRANSMISSION METHOD AND REORDERING METHOD - A radio communication system, that includes a source base station; a target base station; and a mobile station for receiving either first sequence number or second sequence number, or both of the first and second sequence numbers from the target base station, whereby the first sequence number is transferred from the source base station to the target base station and the second sequence number is added to PDCP (Packet Data Convergence Protocol) SDU (Service Data Unit) which is transferred from the source base station to the target base station. | 09-26-2013 |
20130250914 | BASE STATION, MOBILE STATION, COMMUNICATION SYSTEM, TRANSMISSION METHOD AND REORDERING METHOD - A reordering method of sending packets, to which numbers indicating the packet order are added, to a mobile station from a base station, and rearranging the order of the packets at the mobile station, this includes forwarding from a source base station to a target base station, packets, not sent to the mobile station before a handover sequence, or packets, a confirmation response of proper reception has not been received from the mobile station, transmitting preferentially those packets from the target base station to the mobile base station and then transmitting packets received from a host station to the mobile station, giving packets information indicating that the packets are jump packets when transmitting the packets to the mobile station, received from the host station with the order jumped, deciding jump packets are not objects of reordering, and performing the reordering process for packets that are objects of reordering. | 09-26-2013 |
20130250915 | BASE STATION, MOBILE STATION, COMMUNICATION SYSTEM, TRANSMISSION METHOD AND REORDERING METHOD - A reordering method of sending packets, to which numbers indicating the packet order are added, to a mobile station from a base station, and rearranging the order of the packets at the mobile station, this includes forwarding from a source base station to a target base station, packets, not sent to the mobile station before a handover sequence, or packets, a confirmation response of proper reception has not been received from the mobile station, transmitting preferentially those packets from the target base station to the mobile base station and then transmitting packets received from a host station to the mobile station, giving packets information indicating that the packets are jump packets when transmitting the packets to the mobile station, received from the host station with the order jumped, deciding jump packets are not objects of reordering, and performing the reordering process for packets that are objects of reordering. | 09-26-2013 |
20140089756 | COMMUNICATION APPARATUS, TRANSMITTING METHOD AND RECEIVING METHOD - A communication apparatus that performs receiving processing of data transmitted at timings of a predetermined interval, the communication apparatus includes: a transmitting unit configured to transmit a signal indicating that data is successfully received when the data transmitted at M | 03-27-2014 |
20140133447 | SCHEDULING REQUEST ENABLED UPLINK TRANSMISSION - The present invention refers to transmission method in a mobile communication system ( | 05-15-2014 |
20150078339 | METHOD FOR DROPPING PACKET DATA, RADIO COMMUNICATION DEVICE, AND MOBILE COMMUNICATION SYSTEM - A control method in a mobile communication system, that includes configuring a discard timer corresponding to a service data unit (SDU) for discarding the SDU according to a value of the discard timer that indicates a time elapsed since the discard timer started at reception of the SDU; when a handover is performed, maintaining the value of the discard timer corresponding to the SDU and taking over the elapsed time of the SDU; and discarding the corresponding SDU when the value of the discard timer reaches a given value. | 03-19-2015 |
20150085808 | METHOD AND APPARATUS FOR PERFORMING CARRIER MANAGEMENT IN CARRIER AGGREGATION SYSTEM - A carrier aggregation system, includes transmitting a first signaling to configure one additional carrier to a user equipment (UE) at which the additional carriers are deactivated, to configure a timer to each additional carrier for the UE by which the carrier is deactivated after the corresponding timer expiry; transmitting a second signaling that carries an activation indication to the UE to activate one deactivated additional carrier in the configured carriers for the UE; activating at least one deactivated additional carrier, starting the timer, controlling the UE to start Physical Downlink Control Channel (PDCCH) monitoring and Physical Downlink Shared Channel (PDSCH) receiving on the activated additional carrier; transmitting PDCCH on the activated additional carrier for the UE, by which the corresponding timer being restarted; deactivating the activated carrier after the corresponding timer expiry, controlling the UE to stop the PDCCH monitoring and the PDSCH receiving on the deactivated additional carrier. | 03-26-2015 |