Isolation techniques for multiple co-located radio modules
First Claim
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1. An apparatus, comprising:
- an antenna;
a first transceiver that is to communicate wirelessly across a first link;
a second transceiver that is to communicate wirelessly across a second link;
a combiner that is to allow the first transceiver and the second transceiver to share the antenna for simultaneous operation;
an antenna switch that is to select one of the first transceiver and the second transceiver to exclusively use the antenna; and
an active signal canceller that is to generate a cancellation signal to cancel an interference signal for a radio-frequency (RF) coupling channel between the first and second transceivers when the first transceiver is transmitting via the antenna.
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Abstract
Isolation techniques for multiple co-located radio modules are disclosed. For example, an apparatus may include an antenna, a first transceiver to communicate wirelessly across a first link, a second transceiver to communicate wirelessly across a second link, a shared antenna structure operative to allow the first transceiver and the second transceiver to share the antenna for simultaneous operations, and an active signal canceller operative to generate a cancellation signal to cancel an interference signal for a radio-frequency coupling channel between the first and second transceivers. Other embodiments are disclosed and claimed.
129 Citations
19 Claims
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1. An apparatus, comprising:
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an antenna; a first transceiver that is to communicate wirelessly across a first link; a second transceiver that is to communicate wirelessly across a second link; a combiner that is to allow the first transceiver and the second transceiver to share the antenna for simultaneous operation; an antenna switch that is to select one of the first transceiver and the second transceiver to exclusively use the antenna; and an active signal canceller that is to generate a cancellation signal to cancel an interference signal for a radio-frequency (RF) coupling channel between the first and second transceivers when the first transceiver is transmitting via the antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method, comprising:
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forming a radio-frequency coupling channel between a first transceiver and a second transceiver of a mobile computing device including an antenna, including a combiner to allow the first transceiver and the second transceiver to share the antenna for simultaneous operation, and including an antenna switch to select one of the first transceiver and the second transceiver to exclusively use the antenna; and generating a cancellation signal to cancel an interference signal for the radio-frequency coupling channel between the first transceiver and the second transceiver when the first transceiver is transmitting via the antenna. - View Dependent Claims (11, 12, 13, 14, 15)
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16. An article comprising a non-transitory storage medium containing instructions that, when executed by a processor of a system, cause the system to:
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generate control parameters for a phase delay element and a variable gain amplifier of an active signal canceller; and provide the control parameters to the phase delay element and the variable gain amplifier of the active signal canceller to generate a cancellation signal that cancels an interference signal for a radio-frequency coupling channel between a first transceiver and a second transceiver when the first transceiver is transmitting via an antenna and a combiner that allows the first transceiver and the second transceiver to share the antenna for simultaneous operation and a switch to select one of the first transceiver and the second transceiver to exclusively use the antenna. - View Dependent Claims (17, 18, 19)
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Specification