RF ARCHITECTURE UTILIZING A MIMO CHIPSET FOR NEAR FIELD PROXIMITY SENSING AND COMMUNICATION
First Claim
1. An integrated circuit (IC), comprising:
- radio frequency (RF) circuitry configured to implement a 2×
2 Multiple-Input/Multiple-Output (MIMO) mode and a 1×
2 MIMO mode, the RF circuitry configured to reversibly switch between the 2×
2 MIMO mode and the 1×
2 MIMO mode in response to a mode signal electrically coupled with a RF switch, the RF circuitry includinga first RF chain electrically coupled with the RF switch and configured, when the mode signal is set to the 2×
2 MIMO mode, to be electrically coupled through the RF switch with a first dual band antenna and to transmit and receive, using the first dual band antenna, first and second dual band RF signals, andthe first RF chain configured, when the mode signal is set to the 1×
2 MIMO mode, to be electrically coupled through the RF switch with a near field proximity detection antenna, and to receive only, using the near field proximity detection antenna, a fifth RF signal, anda second RF chain electrically coupled with a second dual band antenna and configured to transmit and receive third and fourth dual band RF signals in the 1×
2 or 2×
2 MIMO modes.
10 Assignments
0 Petitions
Accused Products
Abstract
A re-configurable RF architecture includes both a 2×2 MIMO mode and a 1×2 MIMO mode The 2×2 MIMO mode includes a first RF chain coupled with a first dual band antenna and configured to both transmit (Tx) and receive (Rx) using two different RF protocols. The 2×2 MIMO mode also includes a second RF chain coupled with a second dual band antenna and configured to both Tx and Rx using a single RF protocol. The first RF chain may be coupled with a third antenna configured for near field proximity sensing. The RF architecture is reversibly switchable from the 2×2 MIMO mode to the 1×2 MIMO mode when near field proximity detection is required. In the 1×2 MIMO mode the Tx/Rx capabilities of the second chain using the second dual band antenna are retained and the first chain is configured for Rx only capability using the third antenna.
29 Citations
20 Claims
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1. An integrated circuit (IC), comprising:
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radio frequency (RF) circuitry configured to implement a 2×
2 Multiple-Input/Multiple-Output (MIMO) mode and a 1×
2 MIMO mode, the RF circuitry configured to reversibly switch between the 2×
2 MIMO mode and the 1×
2 MIMO mode in response to a mode signal electrically coupled with a RF switch, the RF circuitry includinga first RF chain electrically coupled with the RF switch and configured, when the mode signal is set to the 2×
2 MIMO mode, to be electrically coupled through the RF switch with a first dual band antenna and to transmit and receive, using the first dual band antenna, first and second dual band RF signals, andthe first RF chain configured, when the mode signal is set to the 1×
2 MIMO mode, to be electrically coupled through the RF switch with a near field proximity detection antenna, and to receive only, using the near field proximity detection antenna, a fifth RF signal, anda second RF chain electrically coupled with a second dual band antenna and configured to transmit and receive third and fourth dual band RF signals in the 1×
2 or 2×
2 MIMO modes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for multiple dual band wireless communication and wireless near field proximity detection, comprising:
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setting a state of a mode signal in a radio frequency (RF) system including circuitry for a 2×
2 Multiple-Input/Multiple-Output (MIMO) mode and a 1×
2 MIMO mode;coupling, when the mode signal is set to the 2×
2 MIMO mode, a first RF chain of the RF system with a first dual band antenna configured to transmit and receive first and second dual band RF signals;coupling, when the mode signal is set to the 2×
2 MIMO mode or the 1×
2 MIMO mode, a second RF chain of the RF system with a second dual band antenna configured to transmit and receive third and fourth dual band RF signals; andcoupling, when the mode signal is set to the 1×
2 MIMO mode, the first RF chain with a near field proximity detection antenna, the first RF chain configured to only receive a fifth RF signal from the near field proximity detection antenna when the 1×
2 MIMO mode is set. - View Dependent Claims (15, 16)
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17. A multi-channel dual band wireless communication and wireless near field proximity detection system, comprising:
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circuitry configured to implement a 2×
2 Multiple-Input/Multiple-Output (MIMO) mode and a 1×
2 MIMO mode, the circuitry configured to reversibly switch between the 2×
2 MIMO mode and the 1×
2 MIMO mode in response to a mode signal electrically coupled with a RF switch, the circuitry includinga first RF chain electrically coupled with the RF switch and configured, when the mode signal is set to the 2×
2 MIMO mode, to be electrically coupled through the RF switch with a first dual band antenna and to transmit and receive first and second dual band RF signals using the first dual band antenna, andconfigured, when the mode signal is set to the 1×
2 MIMO mode, to be electrically coupled through the RF switch with a near field proximity detection antenna and to receive only, using the near field proximity detection antenna, a fifth RF signal, anda second RF chain electrically coupled with a second dual band antenna and configured, when the mode signal is set to the 2×
2 MIMO mode or the 1×
2 MIMO mode, to transmit and receive third and fourth dual band RF signals using the first dual band antenna. - View Dependent Claims (18, 19, 20)
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Specification