Information Handling System Antenna Sharing with Distributed Tuning Control
AssigneeDell Products L.P.
InventorsLiam Prendergast, Gerald R. Pelissier
Life of this patent
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Abstract
A portable information handling system having plural radios, each radio having a dedicated antenna and interfaced with a common shared antenna. A controller tunes the shared antenna to support a multi-antenna configuration of one of the radios, such as a MIMO configuration, based upon one or more predetermined conditions, such as data communication supported by the radios, signal strength associated with the radios, proximity sensing at the information handling system housing, and a rotational relationship of rotationally coupled housing portions.
Claims20
A portable information handling system comprising:
- a housing;
- a processor disposed in the housing and operable to execute instructions to process information;
- a memory disposed in the housing and interfaced with the processor, the memory operable to store the information;
- plural radios interfaced with the processor and operable to transmits and receive wireless signals;
- a first antenna interfaced only with a first of the plural radios to support wireless signal transmission and reception by the first of the plural radios;
- a second antenna interfaced with only a second of the plural radios to support wireless signal transmission and reception by the second of the plural radios;
- a third antenna selectively interfaced with one of the first or second of the plural radios, the third antenna supporting wireless signal transmission and reception by the one of the first or second radios to which the third antenna is selectively interfaced;
- and
- an embedded controller separate from the plural radios and operable to selectively interface the third antenna with one of the first or second radios based upon one or more predetermined conditions.
A method for communicating wireless signals at a portable information handling system, the method comprising:
- coupling a first radio to a first dedicated antenna;
- coupling a second radio to a second dedicated antenna;
- and
- selecting one of the first or second radios to interface with a third antenna based upon one or more predetermined conditions;
- and
- communicating wireless signals with the selected radio and third antenna.
A portable information handling system radio system comprising:
- a WWAN transceiver having a dedicated antenna;
- a WLAN transceiver having a dedicated antenna;
- a shared antenna interfaced with the WWAN transceiver and the WLAN transceiver;
- a tuning circuit interfaced with the shared antenna and operable to tune the resonance of the shared antenna;
- and
- a controller interfaced with the tuning circuit and operable to selectively tune the shared antenna based upon one or more predetermined conditions to one of a resonance for the WWAN transceiver or the WLAN antenna.
Dependencies are inferred from the claim text.