Method and system for automatic power control (APC) in a communications device that communicates via inductive coupling
First Claim
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1. A method for automatic power control (APC) in a communications device that communicates via inductive coupling, the method comprising:
- storing a universal APC table for the communications device;
adjusting the universal APC table in response to at least one system parameter; and
controlling a transmission configuration of the communications device based on the adjusted APC table, wherein the universal APC table contains information regarding a received signal strength indicator (RSSI) at the communications device and information regarding corresponding transmission configuration of the communications device.
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Abstract
Embodiments of methods and systems for automatic power control (APC) in a communications device that communicates via inductive coupling are described. In an embodiment, a method for APC in a communications device that communicates via inductive coupling involves storing a universal APC table for the communications device, adjusting the universal APC table in response to at least one system parameter, and controlling a transmission configuration of the communications device based on the adjusted APC table. Other embodiments are also described.
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Citations
19 Claims
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1. A method for automatic power control (APC) in a communications device that communicates via inductive coupling, the method comprising:
- storing a universal APC table for the communications device;
adjusting the universal APC table in response to at least one system parameter; and
controlling a transmission configuration of the communications device based on the adjusted APC table, wherein the universal APC table contains information regarding a received signal strength indicator (RSSI) at the communications device and information regarding corresponding transmission configuration of the communications device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- storing a universal APC table for the communications device;
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12. An automatic power control (APC) unit for a communications device that communicates via inductive coupling, the APC unit comprising:
- an APC table storage unit that stores a universal APC table for the communications device;
an APC adjustor unit configured to adjust the universal APC table in response to at least one system parameter; and
a transmission configuration control unit configured to control a transmission configuration of the communications device based on the adjusted APC table, wherein the universal APC table contains information regarding a received signal strength indicator (RSSI) at the communications device and information regarding corresponding transmission configuration of the communications device. - View Dependent Claims (13, 14, 15, 16, 17)
- an APC table storage unit that stores a universal APC table for the communications device;
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18. A method for automatic power control (APC) in a communications device that communicates via inductive coupling, the method comprising:
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storing a universal APC table for the communications device, wherein the universal APC table contains information regarding a received signal strength indicator (RSSI) at the communications device and index information of a plurality of predefined transmission configurations of the communications device; adjusting the universal APC table in response to a ratio between the RSSI at the communications device and a field strength of inductive coupling or a ratio between a load modulation amplitude of the communications device and a transmitter output signal amplitude of the communications device; and controlling a transmission configuration of the communications device based on the adjusted APC table.
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19. A method for automatic power control (APC) in a communications device that communicates via inductive coupling, the method comprising:
- storing a universal APC table for the communications device;
adjusting the universal APC table in response to at least one system parameter, wherein the at least one system parameter is selected from the group consisting of;
a ratio between a received signal strength indicator (RSSI) at the communications device and a field strength of inductive coupling; and
a ratio between a load modulation amplitude of the communications device and a transmitter output signal amplitude of the communications device; and
controlling a transmission configuration of the communications device based on the adjusted APC table.
- storing a universal APC table for the communications device;
Specification