Patent application number | Description | Published |
20080305767 | Communication System, Mobile Station, Switch Apparatus, and Communication Method - A communication system according to the present invention includes: a mobile station | 12-11-2008 |
20090240656 | SEARCH SYSTEM OF COMMUNICATIONS DEVICE - A communications system is provided which can search for information about a communications device that is not registered in a network by designating time. The search system, which includes a plurality of communications devices, gateways and an entity management server, can execute a search method. The entity management server stores in a storage device the identification information of the communications device sent from the gateways with establishing correspondence with notification time. The entity management server receives from a mobile terminal the identification information of the communications device and designated time. The entity management server searches for the identification information stored in the storage device at the designated time, and identifies the location information of the gateways corresponding to the identification information included in the search request. | 09-24-2009 |
20090303985 | COMMUNICATION CONTROL METHOD AND COMMUNICATION CONTROL APPARATUS - In a communication system which performs a communication of the user communication information between a user terminal and a user terminal, the communication system including a plurality of network domains each having different types of destination information (for example, host address) of the user communication information transmitted from the user terminal to the user terminal, a communication control method that switches a U-PLANE includes: allocating, to the communication path of the user communication information, path identification information identifying the communication path of the user communication information; notifying, to the user terminal, the path identification information; and transmitting, from the user terminal, the user communication information, by using the path identification information as the destination information. | 12-10-2009 |
20100159923 | COMMUNICATION SYSTEM AND COMMUNICATION METHOD - A communication system and communication method with which an incoming call processing can be prevented from falling into a loop state when a communication mode for the incoming call destination is determined. When an inquiry reception unit receives an inquiry signal representing an incoming call destination inquiry from a GMSC, a flag judgment unit judges whether an identification flag has been added. In cases where judgment is made that an identification flag has not been added, a response unit sends back a routing number of a CCCF/NeDS assigned to the GMSC and, in cases where judgment is made that an identification flag has been added, a VMSC inquiry unit acquires in-range information regarding the mobile device from a VMSC which is a visited mobile-services switching center, and the acquired in-range information acquired by the response unit is sent back to the GMSC. | 06-24-2010 |
20100202323 | PATH ESTABLISHMENT METHOD, ACCESS NETWORK SWITCHING METHOD, ACCESS NETWORK SWITCHING APPARATUS, MOBILE STATION, AND PROXY ACCESS NETWORK SWITCHING APPARATUS - In a mobile communication system including a mobile station, an access apparatus for performing connection control between the mobile station and an access network, and an access network switching apparatus for switching access networks to communicate with the mobile station, the mobile station establishes a first path to communicate with the access apparatus, when the mobile station enters a coverage area of the access apparatus. The access apparatus establishes a second path to communicate with the access network switching apparatus when the first path is established. The access network switching apparatus switches the access networks when a predetermined condition is satisfied. | 08-12-2010 |
20110053593 | LOCATION REGISTRATION METHOD, MOBILE COMMUNICATION SYSTEM AND RADIO BASE STATION - A location registration method according to the present invention, includes: transmitting, at a mobile station (UE), a TA signal, when detecting that the mobile station (UE) has moved out of a TA list with which the mobile station (UE) is already registered by location registration processing; and transferring, from a radio base station (eNB) to an exchange (MME) identified by an exchange ID included in the TAU signal. An exchange ID assigned to a mobile station (#a) belonging to a first layer is different from an exchange ID assigned to a mobile station (#b) belonging to a second layer, even though the same exchange is identified by the exchange IDs. A TA list and a pool area set for the mobile station (#a) is different from a TA list and a pool area set for the mobile station (#b). | 03-03-2011 |
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 |
20110176413 | MOBILE COMMUNICATION METHOD, NETWORK DEVICE, AND EXCHANGE - Provided is a mobile communication method which includes: a step in which a first exchange station MME#a allocates a temporary identifier TMSI for identifying a mobile station UE# | 07-21-2011 |
20110177812 | MOBILE COMMUNICATION METHOD AND MOBILE STATION - In a mobile communication method, when a mobile station UE has moved from an area inside UTRAN to an area inside E-UTRAN, a connection process with “Default APN” is executed if no connection with the “Default APN” is established even if it is determined that no position registration process need to be executed for the E-UTRAN. | 07-21-2011 |
20110199893 | MOBILE COMMUNICATION METHOD, MOBILE SWITCHING CENTER, AND RADIO BASE STATION - A CSFB processing unit ( | 08-18-2011 |
20110206005 | MOBILE COMMUNICATION METHOD, MOBILE SWITCHING CENTER, AND MOBILE STATION - Disclosed is a mobile communication method having: a step wherein, when the bearer status changes for a cell under the control of a WCDMA mobile communication system while the location of a mobile station (UE) is registered with a WCDMA mobile switching center (SGSN) and an LTE mobile switching center (MME), a synchronization process is performed on the bearer status of the mobile station (UE) between the WCDMA mobile switching center (SGSN) and the LTE mobile switching center (MME); and a step wherein the WCDMA mobile switching center (SGSN) notifies the mobile station (UE) that the synchronization process has occurred. If the bearer status has changed and the mobile station (UE) has received the aforementioned notification, the location of the mobile station (UE) is not registered with the LTE mobile switching center (MME) when moved from a cell under the control of the WCDMA mobile communication system to a cell under the control of the LTE mobile communication system. | 08-25-2011 |
20110268084 | RADIO COMMUNICATION SYSTEM, RADIO COMMUNICATION METHOD, AND MOBILE STATION - A mobile station transmits mobile station capability information to a first radio communication system via a first radio connection set between the mobile station and the first radio communication system, before a disconnection of the first radio connection. The first radio communication system transmits the mobile station capability information to a second radio communication system, before the disconnection of the first radio connection. The second radio communication system transmits a parameter to the first radio communication system, before the disconnection of the first radio connection. The parameter is used in a second radio connection to be set between the mobile station and the second radio communication system. The first radio communication system transmits the parameter to the mobile station via the first radio connection, before the disconnection of the first radio connection. | 11-03-2011 |
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 |