Radio communication system
DC CAFCFirst Claim
1. A radio communication system having a communication channel between a primary station and a secondary station, the primary and secondary stations having means for communicating according to first and second two-way communication modes, wherein the communication channel comprises at least one of an uplink and a downlink channel for the first mode and one of an uplink and a downlink channel for the second mode, the other channel for the second mode being absent, wherein means are provided for transmitting and receiving data normally routed via an absent channel of one mode via a respective channel of the other mode;
- and means are provided for transmitting information about a radio interface specification defining the second mode to the secondary station via the downlink communication channel of the first mode.
5 Assignments
Litigations
2 Petitions
Accused Products
Abstract
A radio communication system a primary station and a secondary station operating according to two (or more) two-way communication modes. An uplink and/or a downlink communication channel is present for the first mode, but only one of an uplink and a downlink channel is present for the second mode. Modifications to the protocols of the first and second modes enable the traffic for an absent communication channel of one mode to be carried by the corresponding channel of the other mode.
21 Citations
18 Claims
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1. A radio communication system having a communication channel between a primary station and a secondary station, the primary and secondary stations having means for communicating according to first and second two-way communication modes, wherein the communication channel comprises at least one of an uplink and a downlink channel for the first mode and one of an uplink and a downlink channel for the second mode, the other channel for the second mode being absent, wherein means are provided for transmitting and receiving data normally routed via an absent channel of one mode via a respective channel of the other mode;
- and means are provided for transmitting information about a radio interface specification defining the second mode to the secondary station via the downlink communication channel of the first mode.
- View Dependent Claims (2, 3, 4, 5)
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6. A primary station for use in a radio communication system having a communication channel between the primary station and a secondary station, wherein means are provided for communicating according to first and second two-way communication modes, the communication channel comprises at least one of an uplink and a downlink channel for the first mode and one of an uplink and a downlink channel for the second mode, the other channel for the second mode being absent, wherein means are provided for transmitting or receiving data normally routed via an absent channel of one mode via a respective channel of the other mode;
- and means are provided for transmitting information about a radio interface specification defining the second mode to the secondary station via the downlink communication channel of the first mode.
- View Dependent Claims (7, 8, 9, 10)
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11. A secondary station for use in a radio communication system having a communication channel between a primary station and the secondary station, wherein means are provided for communicating according to first and second two-way communication modes, the communication channel comprises at least one of an uplink and a downlink channel for the first mode and one of an uplink and a downlink channel for the second mode, the other channel for the second mode being absent, wherein means are provided for transmitting or receiving data normally routed via an absent channel of one mode via a respective channel of the other mode;
- and means are provided for receiving information about a radio interface specification defining the second mode transmitted by the primary station via the downlink communication channel of the first mode and for implementing the second mode in response to the received information.
- View Dependent Claims (12)
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13. A method of operating a radio communication system having a communication channel between a primary station and a secondary station, wherein the system supports communications according to first and second two-way communication modes, the communication channel comprises at least one of an uplink and a downlink channel for the first mode and one of an uplink and a downlink channel for the second mode, the other channel for the second mode being absent, and the method comprises transmitting and receiving data normally routed via an absent channel of one mode via a respective channel of the other mode;
- and the primary station transmitting information about a radio interface specification defining the second mode to the secondary station via the downlink communication channel of the first mode and by the secondary station implementing the second mode in response to the transmitted information.
- View Dependent Claims (14)
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15. A communication station for communication with a further station, said communication station comprising:
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a first transceiver configured to at least one of transmit first information over a first communication link in a first mode, and receive second information over a second communication link in said first mode; at least one of a transmitter and receiver configured to at least one of transmit and receive third information over a third communication link in a second mode; wherein when at least one of said first communication link and said second communication link is not available, then at least one of said first information and said second information is communicated to said communication station via said third communication link in said second mode, wherein at least one of said first transceiver and said transmitter is configured for transmitting specification information about a radio interface specification defining said second mode, said specification information being transmitted to said further station via at least one of said first communication link and said second communication link. - View Dependent Claims (16, 17, 18)
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Specification