CDMA mobile data communication system and a method of wireless data communication using the system
First Claim
1. A mobile data communication system for a wireless data communication, comprising:
- a plurality of mobile stations;
a plurality of base stations and base station controllers for transferring a signal transmitted from said mobile stations and a signal transmitted to said mobile stations in a predetermined service area;
a mobile switching center for detecting a service option included in the signal transmitted from the base stations and base station controllers and for switching between a circuit data service and a packet data service based on the detected service option; and
at least one mobile data network interworking unit for establishing a traffic channel of a mobile data path and a call between a calling party mobile station and a called party mobile station when said mobile switching center performs the circuit data service, wherein first and second data paths are established between the mobile switching center and the least one mobile data network interworking unit.
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0 Petitions
Accused Products
Abstract
A CDMA mobile data communication system and method of wireless data communication is provided for mobile-to-mobile data communication. The system may include a plurality of mobile stations, a plurality of base stations and base station controllers, a plurality of switching centers and data network interworking units. A first traffic channel may be established after a first call from a calling party mobile station to the data network interworking unit. A second traffic channel may be established after a second call from the called party mobile station to the data network interworking unit is established when a data response is transmitted from the called party mobile station and the mobile data path connection module informs the public network data path connection control module of the normal state of the first data path. A call may be established through the second data path between the mobile switching center and the data network interworking unit. The first and second traffic channels may be connected through at least one modem.
26 Citations
40 Claims
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1. A mobile data communication system for a wireless data communication, comprising:
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a plurality of mobile stations; a plurality of base stations and base station controllers for transferring a signal transmitted from said mobile stations and a signal transmitted to said mobile stations in a predetermined service area; a mobile switching center for detecting a service option included in the signal transmitted from the base stations and base station controllers and for switching between a circuit data service and a packet data service based on the detected service option; and at least one mobile data network interworking unit for establishing a traffic channel of a mobile data path and a call between a calling party mobile station and a called party mobile station when said mobile switching center performs the circuit data service, wherein first and second data paths are established between the mobile switching center and the least one mobile data network interworking unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A wireless data communication method in which at least one mobile switching center including a mobile connection control module, a mobile data path connection control module, a public network data path connection control module and a trunk connection control module are connected with at least one data network interworking unit by a first data path and a second data path, comprising:
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inputting an identification number of a called party mobile station; establishing a first call from a calling party mobile station to a mobile data network interworking unit and then establishing a first traffic channel; calling the called party mobile station at the mobile data network interworking unit; establishing a second call from said called party mobile station to the mobile data network interworking unit when a data response comes from said called party mobile station and then establishing a second traffic channel after the mobile data path connection module informs the public network data path connection control module of a normal state of a first data path between a mobile switching center and the mobile data network interworking unit; establishing a call between the mobile switching center and the mobile data network interworking unit through a second data path; and connecting said first and second traffic channels through at least one modem of the interworking unit to perform circuit data service, wherein the identification number of said called party mobile station is inputted by an ATD command and the data response is automatically generated by a present automatic response or ATA command. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. A wireless data communication method in which at least one mobile switching center including a mobile connection control module, a mobile data path connection control module, a public network data path connection control module and a trunk connection control module are connected with at least one data network interworking unit by a first data path and a second data path, comprising:
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inputting an identification number of a called party mobile station; establishing a first call from a calling party mobile station to a mobile data network interworking unit and then establishing a first traffic channel; calling the called party mobile station at the mobile data network interworking unit; establishing a second call from said called party mobile station to the mobile data network interworking unit when a data response comes from said called party mobile station and then establishing a second traffic channel after the mobile data path connection module informs the public network data path connection control module of a normal state of a first data path between a mobile switching center and the mobile data network interworking unit; establishing a call between the mobile switching center and the mobile data network interworking unit through a second data path; and connecting said first and second traffic channels through at least one modem of the interworking unit to perform circuit data service, wherein establishing said second traffic channel comprises; initializing a second modem equipped in the data network interworking unit; connecting a path between said called party mobile station and the data network interworking unit to modem; establishing a communication protocol between said called party mobile station and the data network interworking unit; transmitting said incoming response receive message and said modem initialization specification from said called party mobile station to the second modem; and reestablishing a modem initialization specification required by said calling party mobile station. - View Dependent Claims (22)
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23. A wireless data communication method in which at least one mobile switching center including a mobile connection control module, a mobile data path connection control module, a public network data path connection control module and a trunk connection control module are connected with at least one data network interworking unit by a first data path and a second data path, comprising:
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inputting an identification number of a called party mobile station; establishing a first call from a calling party mobile station to a mobile data network interworking unit and then establishing a first traffic channel; calling the called party mobile station at the mobile data network interworking unit; establishing a second call from said called party mobile station to the mobile data network interworking unit when a data response comes from said called party mobile station and then establishing a second traffic channel after the mobile data path connection module informs the public network data path connection control module of a normal state of a first data path between a mobile switching center and the mobile data network interworking unit; establishing a call between the mobile switching center and the mobile data network interworking unit through a second data path; and connecting said first and second traffic channels through at least one modem of the interworking unit to perform circuit data service, wherein establishing said first and second calls and connecting the traffic channel comprises; informing the public network data path connection control module by the mobile data path connection control module that said first data path is normally established; establishing a call between the public network data path connection control module and the data network interworking unit through said second data path; connecting a path of the first call with a path of the second call in the public network data path connection control module; making the traffic channel between the mobile connection control module and the public network data path connection control module inactive; receiving both a connection request message transmitted from said calling party mobile station through the mobile switching center and an incoming response message transmitted from said called party mobile station into the data network interworking unit; connecting at least one modem equipped in the data network interworking unit which is assigned to link said connection request message and said incoming response message to each other; and confirming the connection of the at least one modem.
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24. A wireless data communication method in which at least one mobile switching center having a mobile connection control module, a mobile data path connection control module, a public network data path connection control module and a trunk connection control module is connected with at least one data network interworking unit through a first data path and a second data path to perform circuit data service, comprising:
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a) inputting an identification number of a called party mobile station; b) establishing a first traffic channel after establishing a first call from a calling party mobile station to a first mobile data network interworking unit having at least one modem through a first mobile switching center; c) calling a called party mobile station controlled by a second mobile switching center from said first mobile data network interworking unit through said public network data path connection control module and said trunk connection control module; d) establishing a second traffic channel after a second call from said called party mobile station to a second mobile data network interworking unit having at least one modem is established when said called party mobile station responds and said mobile data path connection module informs said public network data path connection control module of a normal state of a first data path; e) establishing a call between said public network data path connection control module and said second mobile data network interworking unit after said mobile data path connection control module informs said public network data path connection control module of the completion of channel establishment when said second traffic channel is completely established; f) releasing the traffic channel between said mobile connection control module and said public network data path connection control module when the call establishment between the public network data path connection control module and said second mobile data network interworking unit is completed; and g) connecting said public network data path connection control module with the trunk connection control module, wherein the identification number of said called party mobile station is inputted by an ATD command and the data response is automatically generated by a preset automatic response mode or an ATA command. - View Dependent Claims (25, 26)
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27. A wireless data communication method in which at least one mobile switching center having a mobile connection control module, a mobile data path connection control module, a public network data path connection control module and a trunk connection control module is connected with at least one data network interworking unit through a first data path and a second data path to perform circuit data service, comprising:
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a) inputting an identification number of a called party mobile station; b) establishing a first traffic channel after establishing a first call from a calling party mobile station to a first mobile data network interworking unit having at least one modem through a first mobile switching center; c) calling a called party mobile station controlled by a second mobile switching center from said first mobile data network interworking unit through said public network data path connection control module and said trunk connection control module; d) establishing a second traffic channel after a second call from said called party mobile station to a second mobile data network interworking unit having at least one modem is established when said called party mobile station responds and said mobile data path connection module informs said public network data path connection control module of a normal state of a first data path; e) establishing a call between said public network data path connection control module and said second mobile data network interworking unit after said mobile data path connection control module informs said pubic network data path connection control module of the completion of channel establishment when said second traffic channel is completely established; f) releasing the traffic channel between said mobile connection control module and said public network data path connection control module when the call establishment between the public network data path connection control module and said second mobile data network interworking unit is completed; and g) connecting said public network data path connection control module with the trunk connection control module, wherein establishing said second traffic channel comprises; initializing a second modem equipped in the data network interworking unit; connecting a path between said called party mobile station and the data network inter-working unit to modem; establishing a communication protocol between said called party mobile station and the data network inter-working unit; transmitting said incoming response receive message and said modem initialization specification from said called party mobile station to the second modem; and reestablishing a modem initialization specification required by said calling party mobile station. - View Dependent Claims (28)
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29. A mobile data communication system, comprising:
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at least one base station and base station controller, configured to receive and transfer a signal from at least one mobile station and a signal transmitted to the at least one mobile station in a prescribed service area; a mobile switching center (MSC) configured to detect a service option included in the signal transmitted from the at least one base station and base station controller and to switch between a circuit data service and a packet data service based on the detected service option; and at least one mobile data network interworking unit coupled to the MSC to establish a traffic channel of a mobile data path and a call between a calling party mobile station and a called party mobile station when said mobile switching center performs the circuit data service, wherein first and second data paths are established between the MSC and the least one mobile data network interworking unit. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. A method of performing wireless data communications, comprising:
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inputting an identification number of a first mobile station, wherein the identification number of the first mobile station is inputted by an ATD command and the data response is automatically generated by a preset automatic response mode or an ATD command; establishing a first call from a second mobile station to a mobile data network interworking unit and then establishing a first traffic channel; calling the first mobile station at the mobile data network interworking unit; establishing a second call from the first mobile station to the mobile data network interworking unit when a data response comes from the first mobile station and then establishing a second traffic channel after a mobile data path connection module informs a public network data path connection control module of a normal state of the first data path; establishing a call between a mobile switching center and the mobile data network interworking unit through the second data path; and connecting the first and second traffic channels through at least one modem of the mobile data network interworking unit to perform circuit data service. - View Dependent Claims (40)
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Specification