Systems and methods for wireless communications via satellite
First Claim
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1. An apparatus for transmitting a voice call via satellite from a mobile station to a destination station, comprising:
- a first data channel, the first data channel comprising an integrated services digital network connection;
a second data channel, the second data channel comprising a mobile packet data system connection;
a mobile terminal adapter that receives a voice call from a mobile station and processes the received voice call for transmission over the first data channel and the second data channel; and
a first voice processing unit that inserts additional bits into the voice data when transmitting the voice data from the mobile terminal adapter to the satellite,wherein the mobile terminal adapter (1) divides the voice call into voice data and signaling data, the voice data being transmitted to and from the satellite using the first data channel, and the signaling data being transmitted to and from the satellite using the second data channel, and (2) activates the first data channel as needed for voice data transmission and deactivates the voice channel when not required for voice data transmission, andthe first voice processing unit inserts an additional number of bits into the voice data to increase the data transmission rate of the voice data to one of 8 kbps or 16 kbps.
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Abstract
A method for communicating between an airborne mobile terminal and a terrestrial location via satellite, wherein the satellite communication channel is provided by an integrated services digital network (ISDN) connection for the voice data, and mobile packet data system (MPDS) connection for the signaling data. The ISDN connection is automatically disabled when no voice data is being transmitted, and multiple voice calls are multiplexed on a single ISDN channel.
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Citations
10 Claims
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1. An apparatus for transmitting a voice call via satellite from a mobile station to a destination station, comprising:
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a first data channel, the first data channel comprising an integrated services digital network connection; a second data channel, the second data channel comprising a mobile packet data system connection; a mobile terminal adapter that receives a voice call from a mobile station and processes the received voice call for transmission over the first data channel and the second data channel; and a first voice processing unit that inserts additional bits into the voice data when transmitting the voice data from the mobile terminal adapter to the satellite, wherein the mobile terminal adapter (1) divides the voice call into voice data and signaling data, the voice data being transmitted to and from the satellite using the first data channel, and the signaling data being transmitted to and from the satellite using the second data channel, and (2) activates the first data channel as needed for voice data transmission and deactivates the voice channel when not required for voice data transmission, and the first voice processing unit inserts an additional number of bits into the voice data to increase the data transmission rate of the voice data to one of 8 kbps or 16 kbps. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for transmitting a voice call from a mobile station to a satellite, comprising:
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separating voice call data received from a mobile station into voice data and signaling data; accessing a first data channel, the first data channel comprising an integrated services digital network connection, and a second data channel, the second data channel comprising a mobile packet data system connection, for separately transmitting the voice data and the signaling data to the satellite, the second data channel being always activated for the transmission of data and the first data channel being selectively activated based on a determination that voice data is available to be transmitted; activating the first data channel only when the voice data is available to be transmitted; inserting additional bits into the voice data when transmitting the voice data from the mobile station to the satellite, the additional bits being added to increase the data transmission rate of the voice data to one of 8 kbps or 16 kbps; transmitting the voice data across the first data channel; transmitting the signaling data across the second data channel; and deactivating the first channel on completion of the transmission of the voice data.
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Specification