Synchronous data transmission method and arrangement
AssigneeNokia Telecommunications Oy
InventorJuha Räsänen
Life of this patent
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Abstract
The invention relates to a synchronous data transmission when the maximum data rate of the traffic channel equals one of the user data rates at the terminal interface. Such a situation may occur for example when a satellite system is connected as a base station system to a mobile system. A mobile station (MS) inserts the terminal interface status information (STATUS) in the redundant parts (REDUNDANT) of the protocol data units (PDU) of the transmission protocol used at the terminal interface and transmits the protocol units through a satellite traffic channel to a land earth station (LES). The land earth station (LES) is arranged to extract said status information from the protocol data units and to restore the original redundancy to the protocol data units.
Claims13
A synchronous data transmission method for transmitting control or synchronization information, the control or synchronization information including terminal interface user data and status information, through a traffic channel or a set of traffic channels in a telecommunication system supporting point-to-point transmission, said method comprising:
- inserting, at a transmitting end, the control or synchronization information to an address field of protocol data units of the transmission protocol used at the terminal interface and supporting point-to-multipoint transmission;
- transmitting the protocol data units containing the control or synchronization information through said traffic channel or set of traffic channels, a maximum data rate of the traffic channel or a total maximum data rate of the set of traffic channels being equal to a user data rate at the terminal interface;
- and
- extracting, at a receiving end, the control or synchronization information from the address field of protocol data units and restoring an original redundancy to the protocol data units.
An arrangement for transmitting control or synchronization information, the control or synchronization information comprising:
- terminal interface user data and status information, through a traffic channel in a telecommunication system supporting point-to-point transmission, wherein
- a maximum data rate of the traffic channel or a total maximum data rate of a set of traffic channels is equal to a user data rate at the terminal interface,
- transmission equipment is arranged to insert the control or synchronization information in an address field of the protocol data units of the transmission protocol used at the terminal interface and supporting point-to-multipoint transmission, and to transmit the protocol data units through said traffic channel or set of traffic channels to receiving equipment, and
- the receiving equipment is arranged to extract the control and synchronization information from the address field of protocol data units, and to restore an original redundancy to the protocol data units.
An arrangement for transmitting control or synchronization information, the control or synchronization information comprising terminal interface user data and status information, through a set of traffic channels in a telecommunication system supporting point-to point transmission, wherein
- a total maximum data rate of the set of traffic channels is equal to a user data rate at the terminal interface,
- transmission equipment is arranged to insert the control or synchronization information in an address field of protocol data units of a transmission protocol used at the terminal interface and supporting point-to-multipoint transmission, and to transmit the protocol data units through said set of traffic channels to receiving equipment,
- the receiving equipment is arranged to extract the control and synchronization information from the address field of protocol data units, and to restore an original redundancy to the protocol data units, and
- the control and synchronization information further comprises synchronization information for synchronization between said set of traffic channels.
A synchronous data transmission method for transmitting control or synchronization information, the control or synchronization information including terminal interface user data and status information, through a set of traffic channels in a telecommunication system supporting point-to-point transmission, said method comprising:
- inserting, at a transmitting end, the control or synchronization information to an address field of protocol data units of the transmission protocol used at the terminal interface and supporting point-to-multipoint transmission;
- transmitting the protocol data units containing said control or synchronization information through said set of traffic channels, a total maximum data rate of the set of traffic channels being equal to a user data rate at the terminal interface;
- and
- extracting, at a receiving end, said control or synchronization information from the address field of protocol data units and restoring an original redundancy to the protocol data units,
- wherein said other control and synchronization information further includes synchronization information for synchronization between said set of traffic channels.
Dependencies are inferred from the claim text.