摘要:
There are included an information collecting unit that collects, for each of public land mobile network, public land mobile network selecting information to be used for selecting a public land mobile network to be preferentially selected, and a storing unit that stores, for each of the public land mobile networks, the public land mobile network selecting information collected by the information collecting unit.
摘要:
A mobile station includes a time information reception determining unit configured to determine whether time information is received from a residing network, a table configured to associate networks where the mobile station may reside with time zones for areas where the networks are operated, and a time adjustment unit configured to, in the case where it is not determined by the time information reception determining unit that the time information is received, refer to the table, and perform time adjustment based on the time zone corresponding to the network where the mobile station resides.
摘要:
Execution of an application that functions when a mobile communication terminal is performing communication in a particular mobile communication network. A mobile communication terminal includes an application execution unit for executing one or more applications, a mobile communication unit for performing location registration in a mobile communication network for establishing a communication state, a communication network specifying unit for specifying the mobile communication network in which location registration is made, and an application control unit for performing control on the application execution unit so as to start an application corresponding to the specified mobile communication network.
摘要:
A mobile phone 1 according to the present invention stores first broadcast information received from a base station B1, in correspondence with first cell information in a storage unit 5. When the mobile phone 1 receives second cell information from a base station B2, it determines whether there is previously stored cell information identical with the second cell information, in a cell information storage table 51. When the result of the determination is that it is stored, the mobile phone 1 reads out the first broadcast information and transfers to a cell according to the first broadcast information. When it is not stored, the mobile phone receives second broadcast information and transfers to a cell according to the second broadcast information. Namely, the mobile phone 1 makes the cell transfer according to minimum data within a range in which a cell as a potential transfer target can be identified.
摘要:
A smaller number of frequencies are dynamically defined, from which a frequency to be used is first searched, failing which, all the frequencies available to a particular mobile communication system are searched, thereby frequency search is efficiently performed with a reduced power consumption.
摘要:
Execution of an application that functions when a mobile communication terminal is performing communication in a particular mobile communication network. A mobile communication terminal includes an application execution unit for executing one or more applications, a mobile communication unit for performing location registration in a mobile communication network for establishing a communication state, a communication network specifying unit for specifying the mobile communication network in which location registration is made, and an application control unit for performing control on the application execution unit so as to start an application corresponding to the specified mobile communication network.
摘要:
A mobile communication terminal holds a frequency cancellation list that is information related to cells that cannot be connected, and controls execution/non-execution (frequency cancellation) of the cell search according to the content of the cancellation list. In a case where a frequency is not assigned in a unified manner (when a frequency is assigned to different communication providers in some cells), a frequency cancellation time is set shorter than a case where the frequency is assigned in a unified manner. For example, a frequency f3 is rejected in a cell represented by “another” surrounded by a broken line when the mobile communication terminal moves from an area A to an area B. When the mobile communication terminal further moves to an area C, the frequency cancellation process initiated in the area B terminates. This is because a short frequency cancellation time is set. Therefore, the frequency cancellation time expires while the mobile communication terminal is moving from the area B to the area C. The frequency cancellation terminates, so as to be connectable in the area C of the frequency f3.
摘要:
A cell search control that can save power consumption at a mobile device and perform an appropriate in-service area determination is provided. The mobile device according to the present invention includes: a cell search execution unit (120) for detecting a synchronization channel from a base station to perform cell search; a signal reception determination unit (130) for comparing a measurement X of the signal from the base station with a system information reception threshold A and determining whether or not to receive a system information from the base station; and an in-service area determination unit (170) for comparing the measurement X with a minimum required quality level B contained in the system information and determining whether or not to enter into an in-service area state with the base station. Depending on the result of the in-service area determination unit, the reception threshold A or a waiting time for the cell search may be adjusted, or the base station may be excluded from the cell search. Thus, the power consumption at the mobile device can be saved, and an appropriate in-service area determination can be made even when the minimum required quality level B has been changed.
摘要:
A communication device comprises a receiver configured to receive a notification of a cipher parameter used for encryption of data and a requested start time at which the encryption starts; and a correction unit configured to determine whether the cipher parameter needs to be corrected in response to the notification having been retransmitted based on the requested start time and an actual start time at which the encryption actually starts, and correct the cipher parameter.
摘要:
A terminal device (100) is provided with a C-PLANE processing unit (131) which sets an RRC connection between the terminal device and a radio station (200), and sets an RAB and a PDP context between the terminal device and a network (300), and a U-PLANE processing unit (132) which performs processing for transmitting user data using the PDP context set by the C-PLANE processing unit (131). The C-PLANE processing unit (131) performs local release for releasing the PDP context in the terminal device when the transmission of the user data has failed in a preservation state.