Patent application number | Description | Published |
20090059835 | CENTRAL NODE, BASE STATION, MOBILE STATION, AND DATA TRANSMISSION METHOD - A disclosed base station includes a grouping unit configured to categorize mobile stations that are in the coverage area of the base station and in a multicast group into groups; and a content transmission unit configured to determine radio parameters for content based on at least supported frequency bands or transmission rates of the mobile stations in the respective groups and an available frequency band or a transmission rate of the base station and to transmit the content received from an upper node to the multicast group. | 03-05-2009 |
20090215446 | Mobile Communication System and Mobile Unit - In multiple communication networks operated by different carriers, when a roaming mobile station performs communication with a roaming communication network PLMN, the communication network was able to recognize only the radio capability reported by the mobile station. When the communication network and mobile station differ in radio capability they support, problems arise in that the roaming mobile station sometimes cannot establish a user data channel and its success rate can reduce, and sometimes can operate in an unintended manner. The mobile station has a PLMN decision internal list ( | 08-27-2009 |
20090239538 | BASE STATION AND HANDOVER CONTROL METHOD - A base station includes data storing unit configured to store data addressed to a mobile station transmitted from a transfer route control apparatus, and data transfer unit configured to transfer the data addressed to the mobile station to a handover destination base station according to a request of the data addressed to the mobile station from the handover destination base station, wherein, when the base station receives a handover confirm complete report for reporting handover completion from the handover destination base station, the data storing unit ends storing the data addressed to the mobile station, so that the object is achieved. | 09-24-2009 |
20090305704 | HANDOVER CONTROL APPARATUS, MOBILE COMMUNICATION SYSTEM, AND HANDOVER METHOD - A handover control apparatus includes a service determination unit determining a type of a service being communicated with by a mobile station and a handover processing unit performing handover in accordance with either a network initiative type handover procedure or a mobile station initiative type handover procedure based on the determination. If the service being communicated with by the mobile station belongs to a communication quality guaranteed type service, the handover is performed in accordance with the network initiative type handover procedure. | 12-10-2009 |
20100035654 | BASE STATION, USER DEVICE, AND TRACKING AREA SETTING METHOD - A base station in a mobile communication system is disclosed. In the mobile communication system, user devices present in areas covered by existing base stations report tracking area identifiers of tracking areas to which the existing base stations belong. The base station includes a statistical processing unit configured to count the number of the tracking area identifiers reported by the user devices for each of the tracking areas; and a tracking area selecting unit configured to assign the base station one of the tracking areas corresponding to the largest number of the tracking area identifiers counted by the statistical processing unit. | 02-11-2010 |
20100048141 | MOBILE COMMUNICATION SYSTEM, BASE STATION, ACCESS GATEWAY, AND TRACKING AREA SETTING METHOD - A disclosed mobile communication system includes a newly-installed base station configured to send its identifier and a pilot channel; existing base stations; user devices configured to send reception quality measurements of the pilot channel to the existing base stations; and an upper node. Each of the existing base stations includes a statistical processing unit for performing statistical processing on the reception quality measurements; and a statistical processing result reporting unit configured to send a result of the statistical processing to the upper node. The upper node includes a tracking area selecting unit configured to select a tracking area to be assigned to the newly-installed base station based on the results of the statistical processing; and a tracking area reporting unit configured to report the selected tracking area to the newly-installed base station. The newly-installed base station includes a tracking area setting unit configured to set the reported tracking area. | 02-25-2010 |
20100062774 | HANDOVER METHOD AND RADIO BASE STATION - A handover method according to the present invention includes the steps of: forwarding, at a handover-source radio base station (eNB), user data (A) for a mobile station (UE) to a handover-target radio base station (eNB) when it is determined that a handover processing is to be performed, the user data (A) being stored in the handover-source radio base station (eNB); activating, at the handover-target radio base station, a predetermined timer when transmitting a path switch request to a path control apparatus, and storing second user data for the mobile station received from the path control apparatus until the predetermined timer expires; and forwarding, at the handover-target radio base station, the stored second user data to the mobile station after the predetermined timer expires. | 03-11-2010 |
20100113022 | MOBILE COMMUNICATION METHOD, RADIO BASE STATION AND UPPER NODE - An upper node and a handover source radio base station store setup information on an access bearer having been set up between the upper node and the handover source radio base station. A mobile communication method according to the present invention includes the steps of: (A) informing, from the handover source radio base station to a handover target radio base station, the access bearer setup information; (B) storing, at the handover target radio base station, the access bearer setup information informed of by the handover target radio base station; and (C) setting up, at the upper node, an access bearer between the upper node and the handover target radio base station by using the stored access bearer setup information without performing reallocation processing of new access bearer setup information, the access bearer being set up in response to a path switching request from the handover target radio base station. | 05-06-2010 |
20100120448 | TRACKING AREA SETTING APPARATUS, USER EQUIPMENT, AND TRACKING AREA SETTING METHOD - A tracking area setting apparatus is disclosed that includes a service request measurement unit measuring a frequency of occurrence of a service request transmitted by a user equipment terminal to a cell where the user equipment terminal is located based on a paging channel transmitted in all cells belonging to a tracking area where the user equipment terminal is located, the user equipment terminal being a target user equipment terminal to receive a call, the tracking area including one or more cells and a tracking area determination unit determining whether a number of the frequency of occurrence of the service request in a predetermined cell is equal to or greater than a predetermined threshold value based on the frequency of occurrence of the service request and, when determining yes, separate the predetermined cell from the tracking area to which the predetermined cell belongs. | 05-13-2010 |
20100279692 | MOBILE COMMUNICATION METHOD AND EXCHANGE - A mobile communication method according to the present invention includes the steps of: transmitting, from a NAS function to an S1-AP function, a NAS-PDU; transmitting, from the S1-AP function to the NAS function, a retransmission request for the NAS-PDU, when receiving a notification, which indicates completion of a handover of a mobile station (UE), from a handover target radio base station (eNB), after receiving an S1-AP response message, *which indicates that transfer of the NAS-PDU to the mobile station (UE) through a radio interface has failed, from the handover source radio base station (eNB); and retransmitting, from the NAS function to the S1-AP function, the NAS-PDU, in response to the retransmission request. | 11-04-2010 |
20100297998 | MOBILE COMMUNICATION METHOD AND RADIO BASE STATION - A radio base station (T-eNB) according to the present invention is configured to set up a data forwarding tunnel for forwarding user plane data to the radio base station (T-eNB) only for an access bearer for which the user plane data to be forwarded exists, when receiving a notification from a handover-source radio base station (S-eNB) as to whether or not the user plane data to be forwarded exists for each access bearer, the notification being made by using a handover request message for the mobile station (UE), and the access bearer being set up between the radio base station (T-eNB) and a upper level node (SGW); and | 11-25-2010 |
20110007708 | MOBILE COMMUNICATION METHOD AND RADIO BASE STATION - A mobile communication method according to the present invention includes the steps of: (A) calculating, at the radio base station (eNB | 01-13-2011 |
20110013593 | MOBILE COMMUNICATION METHOD AND RADIO BASE STATION - A mobile communication method according to the present invention includes: the steps of: (A) transferring, from a first radio base station (S-eNB) to an upper level node (S-GW), consecutive uplink data received from a mobile station (UE) with their sequence numbers being consecutive, by use of a resource allocated by the upper level node (S-GW), when the first radio base station (S-eNB) determines that the mobile station (UE) is to perform a handover; (B) transmitting, from the first radio base station (S-eNB) to the upper level node (S-GW) transfer completion notification data after the transfer of the consecutive uplink data to the upper level node (S-GW) is completed; and (C) releasing, at the upper level node (S-GW), the resource when receiving the transfer completion notification data. | 01-20-2011 |
20110021185 | MOBILE COMMUNICATION METHOD AND MOBILE COMMUNICATION SYSTEM - A mobile communication method according to the present invention includes the steps of: transmitting, from a higher-level node to a macro radio base station, an “INIT(SCTP)”, when the higher-level node detects that no SCTP connection is established with the macro radio base station; and transmitting, from a home radio base station to a higher-level node, an “INIT(SCTP)”, when the home radio base station detects that no SCTP connection is established with the higher-level node. The higher-level node does not transmit “INIT(SCTP)” to the home radio base station, even when detecting that no SCTP connection is established with the home radio base station. | 01-27-2011 |
20110021199 | MOBILE COMMUNICATION METHOD AND RADIO BASE STATION - A mobile communication method according to the present invention includes the steps: transmitting, from an exchange (MME) to a first radio base station (eNB), a location information reporting instruction which provides an instruction to report location information on a mobile station (UE); reporting, the first radio base station (eNB) to the exchange (MME), the location information on the mobile station (UE), in accordance with the location information reporting instruction; transmitting, the location information reporting instruction to a second radio base station (eNB), in a handover procedure of the mobile station (UE) from the first radio base station (eNB) to the second radio base station (eNB); and reporting, from the second radio base station (eNB) to the exchange (MME), the location information on the mobile station (UE), in accordance with the location information reporting instruction. | 01-27-2011 |
20110026486 | LOCATION INFORMATION ACQUISITION METHOD AND MOBILE STATION - Provided is a mobile communication method including: a step in which a first radio base station S-eNB transmits a handover instruction which instructs a mobile station UE performing communication via a first cell under control of a first radio base station SeNB, so as to perform a handover to a second cell under control of a second radio base station TeNB; a step in which the mobile station UE performs a handover from the first cell to the second cell in accordance with the handover instruction; a step in which the mobile station UE acquires a global cell ID which can uniquely identify a second cell in at least one mobile communication system; and a step in which the mobile station UE reports a global cell ID which can uniquely identify the acquired second cell, to a position information management server. | 02-03-2011 |
20110044241 | TRANSMISSION METHOD AND MOBILE STATION - A transmission according to the present invention includes: (A) determining a maximum allowable data size for an uplink user IP packet in accordance with a type of a transmission path connected to a radio base station ( | 02-24-2011 |
20110092236 | MOBILE COMMUNICATION METHOD, MOBILE STATION AND RADIO BASE STATION - The mobile communication method has a step wherein a mobile station (UE) generates first verification information using a fast key, a first parameter, and an algorithm for ‘Integrity Protection,’ a step wherein the mobile station (UE) generates second verification information by excising a specific bit in the first verification information, and a step wherein, when a wireless link obstruction is detected in an RRC connection, the mobile station (UE) performs cell selection processing and transmits an RRC-PDU for an RRC reconnection request, wherein the second verification information is set, over a shared control channel to the wireless base state that manages the selected cell. | 04-21-2011 |
20110105078 | PAGING SIGNAL TRANSMISSION METHOD AND MOBILE STATION FOR THE SAME - A paging signal transmitting method includes a step of allowing each of mobile stations (UE) to receive security data from a network node ( | 05-05-2011 |
20110105124 | MOBILE COMMUNICATION METHOD AND MOBILE STATION - The present invention relates to a mobile communication method in which a mobile station performs a handover from a handover source radio base station to a handover target radio base station. The mobile communication method includes the steps of: (A) acquiring, at the handover target radio base station, from the handover source radio base station or a switching center, a key for calculating a first key for generating a certain key used in a communication between the handover target radio base station and the mobile station; and (B) acquiring, at the handover target radio base station, from the switching center, a second key for calculating a first key for generating a certain key used in a communication between a next handover target radio base station and the mobile station. | 05-05-2011 |
20110105156 | NOTIFICATION SIGNAL TRANSMISSION METHOD AND MOBILE STATION FOR THE SAME - A method for transmitting a notification signal comprises a step in which each of a plurality of mobile stations (UE) compares first security information which each of the mobile stations manages with second security information included in a received first notification signal to thereby verify the validity of the first notification signal and a step in which each of the mobile stations (UE) performs the output corresponding to the first notification signal in the case of successfully verifying the validity of the first notification signal. | 05-05-2011 |
20110111787 | METHOD FOR REPORTING MULTI-ADDRESS INFORMATION, MOBILE STATION AND AUTHENTICATION ORGANIZATION SYSTEM - A method for reporting multi-address information comprises a step wherein each of mobile stations (UE) obtains the positional information relating to the mobile stations (UE) and manages information relating to the obtained positional information, a step for reporting multi-address information provided with an electronic signature to each of the mobile stations (UE), a step wherein each of the mobile stations (UE) verifies the multi-address information by use of the electronic signature provided to the received multi-address information, a step wherein each of the mobile stations (UE), when the verifying is successful, compares positional information contained in the multi-address information with the positional information being managed, and a step wherein each of the mobile stations (UE) performs processing in response to the multi-address information on the basis of the result of comparing. | 05-12-2011 |
20110122843 | MOBILE COMMUNICATION METHOD - In a mobile communication method according to the present invention includes the steps of: transmitting, from a handover source radio base station to a switching center, a handover request including an NCC, a PCI and a K | 05-26-2011 |
20110124358 | MOBILE COMMUNICATION METHOD - A mobile communication method according to the present invention communicates between a mobile station (UE) and a radio base station (eNB) by using a certain key. The method includes the step of: (A) acquiring, at a radio base station managing a re-establishment target cell for the mobile station (UE), a first key (K | 05-26-2011 |
20110159873 | MOBILE COMMUNICATION METHOD - In a mobile communication method according to the present invention includes the steps of: transmitting, from a handover source radio base station to a switching center, a handover request including an NCC, a PCI and a K | 06-30-2011 |
20110165855 | EMERGENCY INFORMATION NOTIFICATION SYSTEM - An emergency information reporting method, wherein a broadcast equipment (CBC) transmits an emergency information reporting message including a distribution area and emergency information to a switching center (MME) corresponding to the distribution area, the switching center (MME) generates an emergency information reporting message including cell identification information and transmits the message to a wireless base station (eNB) which manages the cell corresponding to the distribution area included in the received emergency information reporting message, and the wireless base station (eNB) broadcasts the emergency information included in the received emergency information reporting message to the cell corresponding to the cell identification information included in the emergency information reporting message. | 07-07-2011 |
20110195716 | HANDOVER METHOD AND RADIO ACCESS NETWORK APPARATUS - Disclosed is a handover method that comprises a step wherein a radio access network apparatus on a first mobile communication system acquires and stores service identification information which specifies the services offered to a mobile station, and a step wherein the radio access network apparatus on the first mobile communication system, in the procedure to perform a hard handover, determines, based on the service identification information, whether to forward downlink data received from a upper node to a radio access network apparatus on a second mobile communication system that is not equipped with a re-ordering function for incoming downlink data. | 08-11-2011 |
20110195738 | BROADCAST INFORMATION NOTIFICATION METHOD AND NETWORK NODE - A broadcast information notification method according to the present invention includes: starting to repeatedly transmit, at a network node, a broadcast message irrespective of transmission timing of a paging message, when the network node is instructed to notify a mobile station of the broadcast information; receiving, at the mobile station, a broadcast message reception parameter by using a parameter specified by the paging message transmitted by the network node at a predetermined timing; receiving, at the mobile station, a receivable broadcast message by using the received broadcast message reception parameter; and performing, at the mobile station, processing corresponding to the broadcast information. | 08-11-2011 |
20110207394 | MESSAGE DISTRIBUTION METHOD, RADIO BASE STATION, AND MESSAGE DISTRIBUTION STATION - A message distribution method according to the present invention includes the steps of: (A) determining, at a message distribution station (CBC), distribution area information and a distribution type, based on a message distribution request received from a flash report transmission station (CBE) and containing distribution target area information, and reporting, from the message distribution station (CBC) to a radio base station (eNB), the distribution area information and the distribution; and (B) determining, at the radio base station (eNB), the distribution area, based on the distribution area information and the distribution type, and distributing, from the radio base station to the mobile station in the distribution area, a predetermined message. | 08-25-2011 |
20110261758 | MOBILE COMMUNICATION SYSTEM AND TRANSMISSION-SIDE NODE - In a mobile communication system according to the present invention, an AP/ULP layer of a transmission-side node (A) is configured to acquire, from a SCTP layer of the transmission-side node (A), a “rwnd” for each connection of the SCTP layer, a “cwnd” for each physical path, and a third data amount indicating an amount of data transmitted within a unit time by the transmission-side node (A) for each stream; and when an urgency flag is included in data subject to transmission, the AP/ULP layer of the transmission-side node (A) is configured to determine a stream and a physical path through which the data subject to transmission should be transmitted, based on the “rwnd”, the “cwnd”, and the third data amount, and to notify, to the SCTP layer, the determination. | 10-27-2011 |
20110269495 | MOBILE COMMUNICATION METHOD, RADIO ACCESS APPARATUS, AND GATEWAY APPARATUS - A mobile communication method according to the present invention includes the steps of: when a gateway apparatus (S-GW) is switched from a first state where downlink data is transmitted to a first radio access apparatus to a second state where the downlink data is transmitted to a second radio access apparatus, transferring, from the first radio access apparatus to the second radio access apparatus, the downlink data which is received from the gateway apparatus and to which specific information is added; and transmitting, from the second radio access apparatus to a mobile station (UE), transfer downlink data which is transferred from the first radio access apparatus and to which the specific information is added, before new downlink data transmitted from the gateway apparatus (S-GW). | 11-03-2011 |
20110300886 | MOBILE COMMUNICATION METHOD AND RADIO BASE STATION - A mobile communication method according to the present invention includes the steps of: (A) transmitting, from a radio base station (eNB) to a plurality of cells designated by a transmission request received from a switching center (MME), broadcast information; and (B) transmitting, from the radio base station (eNB) to the switching center (MME), a transmission response which includes an information element to which the number of cells and identification information of the cells are set, in accordance with the transmission request; wherein, in the step (B), when the broadcast information was not successfully transmitted to all the plurality of cells, the radio base station sets “0” to the number of cells in the information element. | 12-08-2011 |
20120044859 | MOBILE COMMUNICATION SYSTEM - A radio base station includes a mobile communication system, a relay node and a radio base station connected via a radio bearer. A mobile station is configured to conduct a handover process between the state in which a radio bearer is set with the relay node in order to communicate via the relay node and the radio base station, and the state in which a radio bearer is set with the radio base station in order to communicate via the radio base station. The mobile station is configured such that during the handover process, control signals involved in the handover process are sent and received via a radio bearer between the relay node and the radio base station. | 02-23-2012 |
20120044860 | MOBILE COMMUNICATION SYSTEM - A radio base station includes a mobile communication system configured to transmit and receive a data signal between a mobile station and a gateway device via a relay node and a radio base station. The mobile communication system is configured such that the radio bearer for the mobile station is set between the mobile station and the relay node. The radio bearer for the relay node is set between the relay node and the radio base station. A network bearer for the mobile station is set between the relay node and the gateway device. The network bearer for a plurality of mobile stations is multiplexed in the radio bearer for the relay node, and a data signal is transmitted and received between the mobile station and the gateway device via the radio bearer for the mobile station and the network bearer for the mobile station. | 02-23-2012 |
20120069789 | MOBILE COMMUNICATION SYSTEM - A radio base station according to the present invention comprising: a mobile communication system, a relay node and a first radio base station are connected via a radio bearer, the first radio base station and a second radio base station are connected, a mobile station is configured to perform a handover process between a state in which a radio bearer is set with the relay node so as to communicate via the relay node and the first radio base station, and a state in which a radio bearer is set with the second radio base station so as to communicate via the second radio base station, and the handover process is configured such that a radio bearer is set between the relay node and the second radio base station, and the control signals involved in the handover process are sent and received via the radio bearer that has been set between the relay node and the second radio base station. | 03-22-2012 |
20120088521 | MOBILE COMMUNICATION METHOD, MOBILE COMMUNICATION SYSTEM, MOBILE SWITCHING CENTER, SERVER DEVICE, AND RADIO BASE STATION - A radio base station according to the present invention comprising a mobile switching center MME, comprising, a location measurement request transmission unit configured to determine the mobile station location measurement type that must be performed corresponding to Provide Subscriber Location, the location measurement request transmission unit configured to transmit Location Request to the server device ESMLC when a determination is made to perform location measurement other than simple location measurement on the mobile station UE corresponding to Provide Subscriber Location, and a location measurement result transmission unit configured to transmit the mobile station location measurement result received from the radio base station eNB or the second server device ESMLC to the server device SMLC. | 04-12-2012 |
20120093066 | MOBILE COMMUNICATION SYSTEM - A radio base station includes a mobile communication system, a first relay node and a second relay node connected via a radio bearer. The second relay node and a radio base station are connected via a radio bearer. A mobile station is configured to perform a handover process between the state in which a radio bearer is set with the first relay node in order to communicate via the first relay node, the second relay node, and the radio base station, and the state in which a radio bearer is set with the second relay node in order to communicate via the second relay node and the radio base station. The mobile station is configured such that, during the handover process, control signals involved in the handover process are sent and received via the radio bearer between the first relay node and the second relay node. | 04-19-2012 |
20120093081 | MOBILE COMMUNICATION SYSTEM - A radio base station includes a mobile communication system that sends and receives control signals between a mobile station and a mobile switching center via a first radio bearer, a second radio bearer, and a wired bearer. The relay node includes a first radio bearer function, a second radio bearer function, an IP layer function, an SCTP layer function, and an application layer function. The radio base station includes a second radio bearer function, a wired bearer function, and an IP layer function. The mobile switching center includes a wired bearer function, IP layer function, SCTP layer function, and an application layer function. Keep-alive processing is performed between the SCTP layer function of the relay node and the SCTP layer function of the mobile switching center. Security processing is performed between the IP layer function of the relay node and the IP layer function of the mobile switching center. | 04-19-2012 |
20120093125 | MOBILE COMMUNICATION SYSTEM - A radio base station includes a mobile communication system, a first relay node and a first radio base station connected via a radio bearer, a second relay node, and a second radio base station connected via a radio bearer. The first radio base station and the second radio base station are connected via a bearer, in which a mobile station is configured so as to conduct a handover process between a first and second state. In the first state a radio bearer is established with the first relay node in order to communicate. In the second state a radio bearer is established with the second relay node in order to communicate. The mobile station is configured such that in the handover process, control signals are transmitted and received via the radio bearer between the first relay node, first radio base station, second radio base station, and second relay node. | 04-19-2012 |
20120094669 | MOBILE COMMUNICATION METHOD AND RADIO ACCESS NETWORK DEVICE - A radio base station includes a step-A where a second radio access network device inside a second radio access network notifies a first radio access network device inside a first radio access network of access information comprising at least one of either load information or barring information. Step-B includes a mobile station on standby in a cell under the first radio access network device, upon moving to an area in which the cell under the first radio access network device and the cell under the second radio access network device overlap, transmits a communication initiation request signal to the first radio access network device. Step-C includes the first radio access network device decides regarding in which of the cell under the first radio access network device or the cell under the second radio access network device. The communication of the mobile station should be initiated based on the access information. | 04-19-2012 |
20120099516 | MOBILE COMMUNICATION SYSTEM - A radio base station including a mobile communication system, a first relay node and a second relay node which are connected via a radio bearer, the second relay node and a radio base station which are connected via a radio bearer, where a mobile station is configured to perform a handover process between a first state, in which a radio bearer is set with the first relay node in order to communicate via the first relay node, the second relay node, and the radio base station, and a second state, in which a radio bearer is set with the radio base station in order to communicate via the radio base station, and a mobile station is configured such that during the handover process. Control signals involved in the handover process are sent and received via the radio bearer between the first relay node and the second relay node and via the radio bearer between the second relay node and the radio base station. | 04-26-2012 |
20120106435 | MOBILE COMMUNICATION SYSTEM - A radio base station includes a mobile communication system, a first relay node and a radio base station connected via a radio bearer, a second relay node and a radio base station connected via a radio bearer, and a mobile station configured to conduct a handover process between a first and second state. In the first state a radio bearer is established with the first relay node in order to communicate via the first relay node and the radio base station. In the second state a radio bearer is established with the second relay node in order to communicate via the second relay node and the radio base station. The mobile station is configured such that control signals are transmitted and received via the radio bearer between the first relay node and the radio base station, via the radio bearer between the second relay node and the radio base station. | 05-03-2012 |
20120115480 | MOBILE COMMUNICATION SYSTEM - A radio base station includes a mobile communication system, a relay node and a radio base station connected via a radio bearer. A mobile station is configured to perform a handover process between a state in which a radio bearer is set with the relay node so as to communicate via the relay node and the radio base station, and a state in which a radio bearer is set with the radio base station so as to communicate via the radio base station. The handover process is configured such that a data signal is transferred via the radio bearer between the relay node and the radio base station. | 05-10-2012 |
20130079042 | NOTIFICATION SIGNAL TRANSMISSION METHOD AND MOBILE STATION FOR THE SAME - A method for transmitting a notification signal comprises a step in which each of a plurality of mobile stations (UE) compares first security information which each of the mobile stations manages with second security information included in a received first notification signal to thereby verify the validity of the first notification signal and a step in which each of the mobile stations (UE) performs the output corresponding to the first notification signal in the case of successfully verifying the validity of the first notification signal. | 03-28-2013 |
20130231117 | MOBILE COMMUNICATION METHOD, RADIO ACCESS APPARATUS, AND GATEWAY APPARATUS - A mobile communication method according to the present invention includes the steps of: when a gateway apparatus (S-GW) is switched from a first state where downlink data is transmitted to a first radio access apparatus to a second state where the downlink data is transmitted to a second radio access apparatus, transferring, from the first radio access apparatus to the second radio access apparatus, the downlink data which is received from the gateway apparatus and to which specific information is added; | 09-05-2013 |
20130315206 | MOBILE COMMUNICATION SYSTEM - A radio base station includes a mobile communication system, a first relay node and a first radio base station connected via a radio bearer, a second relay node, and a second radio base station connected via a radio bearer. The first radio base station and the second radio base station are connected via a bearer, in which a mobile station is configured so as to conduct a handover process between a first and second state. In the first state a radio bearer is established with the first relay node in order to communicate. In the second state a radio bearer is established with the second relay node in order to communicate. The mobile station is configured such that in the handover process, control signals are transmitted and received via the radio bearer between the first relay node, first radio base station, second radio base station, and second relay node. | 11-28-2013 |