Power management based on adaptive receiver selection
First Claim
1. An electronic device, comprising:
- an antenna; and
a communication circuit, coupled to the antenna, configured to communicate information via wireless communication, wherein the communication circuit includes;
a first receiver circuit configured to detect data in received signals; and
a second receiver circuit configured to detect the data in the received signals, wherein, during operation, the second receiver circuit has a larger power consumption than the first receiver circuit;
wherein the electronic device is configured to calculate a metric for signals that interfere with the wireless communication, a metric for a data rate associated with the wireless communication, and a metric for a signal-to-noise ratio (SNR) associated with the wireless communication, wherein the metric for data rate is calculated based on an amount of downlink data scheduling that is detected during a corresponding measurement interval, and wherein the metric for the SNR is associated with a measured power of a pilot signal and a measured noise over an operating bandwidth in the wireless communication;
wherein the electronic device is configured to determine whether to transition the electronic device from a first power state to a second power state by switching from the first receiver circuit to the second receiver circuit based on a logic condition; and
wherein the logic condition is based on one of;
the metric for the signals and the metric for the data rate, and the metric for the signals and the metric for the SNR.
1 Assignment
0 Petitions
Accused Products
Abstract
In order to reduce power consumption of an electronic device during wireless communication, the electronic device may transition between a baseline (simple) receiver and a higher-power advanced receiver based on network conditions and/or environmental conditions. For example, the transition to the advanced receiver may occur when it offers improved communication performance over the baseline receiver, such as when there is significant interference and a high data rate, or when there is significant interference and a signal-to-noise ratio (SNR) is low. Similarly, the transition to the baseline receiver may occur when the capabilities of the advanced receiver are not needed, such as when there is less interference, or when the data rate is lower and the SNR is high. In this way, the electronic device can avoid the added power consumption associated with the advanced receiver except where the communication performance offered by the advanced receiver is needed.
10 Citations
17 Claims
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1. An electronic device, comprising:
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an antenna; and a communication circuit, coupled to the antenna, configured to communicate information via wireless communication, wherein the communication circuit includes; a first receiver circuit configured to detect data in received signals; and a second receiver circuit configured to detect the data in the received signals, wherein, during operation, the second receiver circuit has a larger power consumption than the first receiver circuit; wherein the electronic device is configured to calculate a metric for signals that interfere with the wireless communication, a metric for a data rate associated with the wireless communication, and a metric for a signal-to-noise ratio (SNR) associated with the wireless communication, wherein the metric for data rate is calculated based on an amount of downlink data scheduling that is detected during a corresponding measurement interval, and wherein the metric for the SNR is associated with a measured power of a pilot signal and a measured noise over an operating bandwidth in the wireless communication; wherein the electronic device is configured to determine whether to transition the electronic device from a first power state to a second power state by switching from the first receiver circuit to the second receiver circuit based on a logic condition; and wherein the logic condition is based on one of;
the metric for the signals and the metric for the data rate, and the metric for the signals and the metric for the SNR. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An integrated circuit, comprising a communication circuit configured to process information for wireless communication, wherein the communication circuit includes:
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a node configured to couple to an antenna to communicate signals associated with the wireless communication; a first receiver circuit, coupled to the node, configured to detect data in received signals; a second receiver circuit configured to detect the data in the received signals, wherein, during operation, the second receiver circuit has a larger power consumption than the first receiver circuit; and an analysis circuit configured to calculate a metric for signals that interfere with the wireless communication, a metric for a data rate associated with the wireless communication, and a metric for a signal-to-noise ratio (SNR) associated with the wireless communication, wherein the metric for data rate is calculated based on an amount of downlink data scheduling that is detected during a corresponding measurement interval, and wherein the metric for the SNR is associated with a measured power of a pilot signal and a measured noise over an operating bandwidth in the wireless communication; wherein the integrated circuit is configured to determine whether to transition the integrated circuit from a first power state to a second power state by switching from the first receiver circuit to the second receiver circuit based on a logic condition; and wherein the logic condition is based on one of;
the metric for the signals and the metric for the data rate, and the metric for the signals and the metric for the SNR. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method for managing power consumption of an electronic device, wherein the method comprises:
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receiving signals associated with wireless communication; detecting data in the signals using a first receiver circuit; calculating a metric for signals that interfere with the wireless communication, a metric for a data rate associated with the wireless communication, and a metric for a signal-to-noise ratio (SNR) associated with the wireless communication, wherein the metric for data rate is calculated based on an amount of downlink data scheduling that is detected during a corresponding measurement interval;
wherein the metric for the SNR is calculated based on a power of a pilot signal received by the electronic device and a measured noise over an operating bandwidth; anddetermining whether to transition the electronic device from a first power state to a second power state by switching from the first receiver circuit to a second receiver circuit based on a logic condition, wherein, during operation, the second receiver circuit has a larger power consumption than the first receiver circuit; and wherein the logic condition is based on one of;
the metric for the signals is greater than a first threshold and the metric for the data rate is greater than a second threshold, and the metric for the signals is greater than the first threshold and the metric for the SNR is less than a third threshold.
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Specification