Method for making mobile-to-mobile wireless data communication
First Claim
1. A method for making a mobile-to-mobile wireless data communication, comprising:
- (1) transmitting an originating instruction for a terminating mobile data terminal as an originating mobile data terminal sets up a service mode;
(2) making a communication using a first radio link protocol (RLP) set up between the originating mobile data terminal and a first base station/mobile switching center;
(3) calling the terminating mobile data terminal using an identification number and a service option from the originating mobile data terminal as the originating instruction is executed;
(4) transmitting a signal responding to the call to the originating mobile data terminal;
(5) making a communication using a second RLP set up between the terminating mobile data terminal and a second base station/mobile switching center;
(6) setting up protocol layers in succession, the protocol layers having levels higher than levels of the first and second RLP'"'"'s; and
(7) executing a wireless data communication between the originating and terminating mobile data terminals, wherein the wireless data communication is performed without using an interworking function.
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Abstract
Method for making a mobile-to-mobile wireless data communication in PCS (Personal Communication Services)/digital cellular mobile telecommunication system, is disclosed, which allows a direct communication without occupying an IWU, the method including the steps of (1) transmitting an originating instruction for a terminating mobile data terminal as an originating mobile data terminal sets up a service mode, (2) making a communication using a first radio link protocol (RLP) set up between the originating mobile data terminal and a base station/mobile switching center, (3) calling the terminating mobile data terminal through an identification number of the originating mobile data terminal and a service option as the originating instruction is executed, (4) informing a signal responding to the call to the originating mobile data terminal, (5) making a communication using a second RLP set up between the terminating mobile data terminal and the base station/mobile switching center, (6) setting up protocol layers in succession, the protocol layers having levels higher than levels of the first, and second RLP'"'"'s, and (7) executing a wireless data communication between the originating, and terminating mobile data terminals.
70 Citations
26 Claims
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1. A method for making a mobile-to-mobile wireless data communication, comprising:
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(1) transmitting an originating instruction for a terminating mobile data terminal as an originating mobile data terminal sets up a service mode;
(2) making a communication using a first radio link protocol (RLP) set up between the originating mobile data terminal and a first base station/mobile switching center;
(3) calling the terminating mobile data terminal using an identification number and a service option from the originating mobile data terminal as the originating instruction is executed;
(4) transmitting a signal responding to the call to the originating mobile data terminal;
(5) making a communication using a second RLP set up between the terminating mobile data terminal and a second base station/mobile switching center;
(6) setting up protocol layers in succession, the protocol layers having levels higher than levels of the first and second RLP'"'"'s; and
(7) executing a wireless data communication between the originating and terminating mobile data terminals, wherein the wireless data communication is performed without using an interworking function. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
one of making a response to a call of the service option automatically and transmitting a preset ring signal to a user on a terminating side; and
the user on the terminating side making a response using the terminating mobile data terminal.
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4. The method as claimed in claim 1, wherein the protocol layers step (6) comprise a PPP (Internet Point to Point Protocol), a TCP (Transmission Control Protocol), and an AI (Application Protocol).
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5. The method as claimed in claim 1, wherein, if the terminating mobile data terminal is busy or gives no response in step (3), the mobile switching center informs a present state of the terminating mobile terminal to the originating mobile terminal, and, at the same time, the originating base station makes a response of a state of the terminating mobile data terminal in an instruction word to the originating mobile terminal.
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6. The method as claimed in claim 5, wherein the mobile switching center uses an audible tone to indicate the present state of the terminating mobile terminal.
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7. The method as claimed in claim 1, wherein the first and second base station/mobile switching centers are not the same base station/mobile switching center.
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8. The method as claimed in claim 1, wherein the first base station/mobile switching center communicates with the second base station/mobile switching center through a Public Switched Telephone Network.
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9. A method for establishing wireless data communication, comprising:
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establishing communication between an originating mobile data terminal and a first base station/mobile switching center using a first protocol;
requesting communication to a terminating mobile data terminal through a second base station/mobile switching center using an identification number of the terminating mobile data terminal;
establishing communication using the first protocol between the terminating mobile data terminal and a second base station/mobile switching center; and
setting up protocol layers in succession, the protocol layers having levels higher than a level of the first protocol to establish data communication between the first and second mobile data terminals wherein the data communication is established without using an interworking function. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method for performing wireless data communication, comprising:
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establishing communication between a first mobile terminal and a first base station/mobile switching center;
establishing communication between a second mobile terminal and a second base station/mobile switching center;
performing data communications between the first mobile terminal and the second mobile terminal through the first and second base station/mobile switching center without using interworking function. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification