Wireless communication system
First Claim
1. A communication terminal device comprising:
- plural wireless communication means for communicating using respective different communication protocols including first wireless communication means for preforming wireless communication with a direct exchange using a first communication protocol for long distance and second wireless communication means for performing wireless communication with a base unit connected to a communication line from an exchange using a second communication protocol for a short distance;
selection means for selecting one of the first and second wireless communication means in accordance with the reception states of said plural wireless communication means; and
communication means for performing communication using the wireless communication means selected by said selecting means.
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Abstract
This invention relates to a wireless communication system, which comprises plural wireless communication units having different communication protocols, and in which a proper wireless communication unit is automatically selected from the plural wireless communication units in accordance with the operation states of the plural wireless communication units to make communication possible. Thereby, troublesome operation is not required, an optimum wireless communication method can be automatically selected, and communication cost can be reduced. In the wireless communication system of the present invention, when mobile stations are registered in a fixed station, preferential orders of the mobile stations are stored, and calling/call-reception and communication processings are controlled according to the preferential orders.
179 Citations
11 Claims
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1. A communication terminal device comprising:
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plural wireless communication means for communicating using respective different communication protocols including first wireless communication means for preforming wireless communication with a direct exchange using a first communication protocol for long distance and second wireless communication means for performing wireless communication with a base unit connected to a communication line from an exchange using a second communication protocol for a short distance; selection means for selecting one of the first and second wireless communication means in accordance with the reception states of said plural wireless communication means; and communication means for performing communication using the wireless communication means selected by said selecting means. - View Dependent Claims (2, 3, 4, 5)
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6. A wireless communication device comprising:
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wireless communication means including long distance wireless communication means for performing wireless communication with a direct exchange having a first communication protocol for a long distance and short distance wireless communication means for performing wireless communication with a base unit connected to a communication line from an exchange having a second communication protocol for a short distance; determination means for determining the state of reception of a predetermined signal in said wireless communication means; and selection means for selecting one of said short distance wireless communication means and said long distance wireless communication means in accordance with the result of the determination by said determination means. - View Dependent Claims (7, 8, 9, 10, 11)
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Specification