POWER ADAPTATION DURING COMMUNICATION FOR IMPROVED MARGIN

摘要

In order to improve communication with another electronic device, during an advertising mode an electronic device (such as a smartphone) may transmit a packet with advertising information using a default transmit power level. Then, based on feedback about a performance metric associated with the communication from the other electronic device, the electronic device may selectively increase the transmit power level for a subsequent packet. Because this selective increase in the transmit power level may increase the overall power consumption, the change in the transmit power level may depend on a battery power level of the electronic device. However, the selective increase in the transmit power level may decrease the overall power consumption by reducing or eliminating retries.

主权项

1. An electronic device, comprising:
an antenna; an interface circuit, coupled to the antenna, configured to communicate with another electronic device using a communication protocol, wherein the interface circuit is configured to:
transmit a packet to the other electronic device during an advertising mode using a first transmit power level;receive feedback from the other electronic device about the communication, wherein the feedback includes information specifying a performance metric associated with the communication; andselect a transmit power level used to transmit a subsequent packet based on a power-state flag; a processor; and memory, wherein the memory stores a program module, and wherein the program module is configured to be executed by the processor to improve communication quality, the program module including:
instructions for comparing the performance metric to a threshold value; andinstructions for selectively modifying the power-state flag based on the comparison, wherein the modifying changes the power-state flag from a value associated with a low-power state to a value associated with a high-power state; andwherein a second transmit power level in the high-power state is larger than the first transmit power level in the low-power state.