Telecommunications – Transmitter and receiver at separate stations
Patent
1996-09-04
1999-02-02
Urban, Edward F.
Telecommunications
Transmitter and receiver at separate stations
455458, 455557, H04Q 700
Patent
active
058677798
DESCRIPTION:
BRIEF SUMMARY
1. Technical Field
This invention relates to a paging equipment and a paging method in a mobile data communication system capable of reducing invalid traffics when a paging is made in a mobile data communication system in which a communication terminal is connected with a data terminal for performing a data communication.
2. Background Art
Heretofore, in case a communication terminal is connected with a data terminal for performing a data communication in a mobile data communication system, a network performs a paging as long as the communication terminal is in a receiving possible state without recognizing a receiving impossible state of the data terminal. Also, the network side performs a paging as long as the communication terminal is in a voice standby possible state irrespective of whether or not a data communication is performed.
For this reason, unnecessary calling or paging is performed and as a consequence, traffics are unfavorably increased.
DISCLOSURE OF THE INVENTION
The present invention has been accomplished in view of the above-mentioned problems. It is, therefore, an object of the present invention to provide a paging equipment in a mobile data communication network, in which a paging is performed only when both communication terminal and data terminal are in usable states and when allowance of a packet communication is recognized by the network side, thus enabling to reduce invalid traffics.
In order to resolve the above-mentioned problem, first, according to the present invention, there is provided in a mobile data communication system in which a movable communication terminal is connected with at least one data terminal and in which a state of use of the communication terminal is independent of a state of use of the data terminal, characterized by, itself and a state of use of at least one data terminal and notifying a result of the recognition to a network side, communication terminal and at least one data terminal connected to the communication terminal became usable, and deleting registration of the communication terminal in case the communication terminal or all data terminals connected to the communication terminal became unusable, in accordance with a result of the notice made by the notice means, registered by the register means, when a packet is received.
According to this construction, when the communication terminal itself became usable and at least one of the data terminals connected to the communication terminal became usable, this communication terminal is registered by the register means on the network side. On the other hand, when the communication terminal itself became unusable or all the data terminals connected to the communication terminal became unusable, the registration is deleted. That is, only a communication terminal, which can effectively transmit and receive data, is registered by the register means. By performing a paging with respect to only the communication terminal thus registered, invalid paging can be suppressed. Accordingly, traffics can be obtained to that extent.
Secondly, according to the present invention, there is provided in a mobile data communication system in which a communication terminal can simultaneously be standby for a voice communication and a packet communication, characterized by, voice-only standby state and a simultaneous standby state of voice and packet as a state of the communication terminal; and which is in a simultaneous standby state for voice and packet when the packet is received.
According to this construction, the state of a communication terminal is discriminatively recognized between a voice-only standby state and a voice and packet receiving simultaneous standby state, so that a paging is not performed merely based on the voice-only standby state when a packet is received. Accordingly, invalid paging is not performed. Thus, traffics can be obtained to that extent.
Third, according to the present invention, there is provided in a mobile data communication system in which a communication terminal can simultaneously be
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Hirata Shoichi
Miyazaki Akitoshi
Okajima Ichiro
Uchida Noriko
NTT Mobile Communications Network Inc.
Urban Edward F.
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