Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Patent
1998-05-12
2000-02-29
Chin, Wellington
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
455575, 455 383, H04Q 720
Patent
active
060320559
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The invention relates to a method of invoking a mobile station such as a land mobile radiotelephone station or a portable telephone set used in mobile communication in which a subscriber information module (such as an IC card, for example,)storing a subscriber identification information, a network information and a subscriber set-up information (hereafter collectively referred to as subscriber information required for processing a communication and abbreviated as communication processing information) is detachably mounted or loaded in the station and each time the power supply for the station is turned on, the communication processing information is read out from the module in order to enable a communication with a base station.
A subscriber information module in which information required to utilize a mobile station is stored comprises an IC card, for example, which stores subscriber identification information, network information, subscriber set-up information, etc., that is, information used in the processing of communications. The subscriber identification information is, for example, a subscriber number (such as a telephone number or a serial number of the IC card). Network information includes information relating to a location (cell or zone) where a previous location registration is made, information indicating a home network where the subscriber is originally registered and roaming information, etc. The subscriber set-up information includes information relating to services available by the subscriber, abbreviated dial data and memory dial data (which is data representing a list of telephone numbers vs. peer names). Both the network information and the subscriber set-up information include fixed information (such as home network information, roaming information, services information and the like, for example) and variable information (such as registered location information, abbreviated dial data, memory dial data or the like, for example). In addition, each variety of such subscriber information includes a kind of information which is essential to establishing a communication (as may be exemplified by subscriber identification information and network information or the like) and another kind of information which is not always required for a communication, but which affords some convenience to a user (such as abbreviated dial data, memory dial data, and charge and interval transmission).
The subscriber information module is not always loaded in a predetermined mobile station, but may be loaded in any desired mobile station for use. Accordingly, it follows that a mobile station may accept any subscriber module, which is not limited to any one particular module.
Previously, the practice has been that each time the power supply to a mobile station is turned on, that station operates to read out every data which is required for its executable functions from a subscriber information module loaded therein, to save such data in a memory thereof and to select data required for the intended function (such as retrieval of a number or a dialed connection) from the memory to prepare the mobile station for use (or in standby condition).
A mobile station is not only utilized by a user for communication, but a variety of auxiliary functions affording convenience to the communication are also provided. By way of example, a memory dial allows, if a number of telephone numbers and names of corresponding peers within a given number are previously registered, a retrieval of a particular telephone number from its associated peer name at any time and an origination, if required, or a retrieval of peer name from a corresponding telephone number. Data utilized in this manner by the additional functions is personal to a user and is updated (or edited) from time to time by the user. The updating of data takes place by loading the subscriber information module (IC card) into a mobile station by the user.
When a user uses a mobile station for purpose of communication, when a user utilizes a mobile stat
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Chiba Kouji
Hirakodama Isao
Tokuhiro Norihito
Yazaki Hidetoshi
Chin Wellington
NTT Mobile Communications Network Inc
Woldetatios Yemane
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