System, apparatus and method for optimizing configuration of a wireless transmitter

Patent metadata

Field	Value
Publication number	US-10833795-B2
Application number	US-201816211513-A
Country	US
Kind code	B2
Filing date	Dec 6, 2018
Priority date	Dec 6, 2018
Publication date	Nov 10, 2020
Grant date	Nov 10, 2020

Abstract

In an embodiment, an apparatus includes: a modulator to modulate a first packet according to rate control information; a physical circuit to transmit the modulated first packet according to power control information; and a dynamic adaptation circuit, for the first packet, to provide the rate control information and the power control information of a first modulation and power pair stored in a first energy map.

First claim

What is claimed is:

1. An apparatus comprising:
a modulator to modulate a first packet according to rate control information received from a dynamic adaptation circuit;
a physical circuit to transmit the modulated first packet according to power control information received from the dynamic adaptation circuit; and
the dynamic adaptation circuit, for the first packet, to provide the rate control information and the power control information of a first modulation and power pair stored in a first energy map, the first energy map including a plurality of modulation and power pairs, wherein multiple ones of the plurality of modulation and power pairs are associated with each of at least some of a plurality of robustness indices, the first modulation and power pair comprising an optimal modulation and power pair of a first plurality of modulation and power pairs associated with a first robustness index of the plurality of robustness indices, wherein the dynamic adaptation circuit is to select the first robustness index based at least in part on quality feedback information from a receiver in communication with the apparatus and when the quality feedback information is less than a first reliability threshold, the dynamic adaptation circuit is, for another packet, to provide the rate control information and the power control information of a different modulation and power pair stored in the first energy map, the different modulation and power pair associated with a higher robustness index.

2. The apparatus of claim 1 , wherein the quality feedback information is based on a count of acknowledgement messages received in the apparatus from the receiver for a plurality of packets.

3. The apparatus of claim 1 , wherein the dynamic adaptation circuit is to access the first energy map to obtain the first modulation and power pair when a length of the first packet exceeds a length threshold.

4. The apparatus of claim 3 , wherein the dynamic adaptation circuit is, for a second packet, to access a second energy map, and not the first energy map, to obtain a different modulation and power pair when a length of the second packet is less than the length threshold.

5. The apparatus of claim 1 , further comprising a non-volatile storage to store the first energy map, the first energy map based at least in part on energy consumption information for the plurality of modulation and power pairs.

6. The apparatus of claim 1 , wherein the dynamic adaptation circuit is, for a second packet, to provide the rate control information and the power control information of a second modulation and power pair stored in the first energy map, wherein both the rate control information and the power control information of the modulation and power pair and the rate control information and the power control information of the second modulation and power pair differ.

7. The apparatus of claim 1 , wherein, in response to a change in a robustness index, the dynamic adaptation circuit is to provide the power control information and the rate control information of a second modulation and power pair stored in the first energy map having different values than corresponding values of a prior robustness index.

8. The apparatus of claim 1 , wherein the dynamic adaptation circuit is, for a second packet of a predetermined type, to provide the rate control information having a first predetermined value and the power control information having a second predetermined value.

9. The apparatus of claim 1 , wherein the physical circuit is to control a first gain of a first gain block and a second gain of a second gain block based at least in part on the power control information.

10. At least one non-transitory computer readable storage medium comprising instructions that when executed enable a wireless transmitter to perform a method comprising:
in response to determining that quality feedback information received from a receiver in communication with the wireless transmitter exceeds a robustness threshold, concurrently updating a rate configuration for a modulator of the wireless transmitter and a power configuration for a physical circuit of the wireless transmitter;
causing one or more packets to be transmitted from the wireless transmitter according to the updated rate configuration and the updated power configuration;
after causing the one or more packets to be transmitted from the wireless transmitter according to the updated rate configuration and the updated power configuration, determining whether the quality feedback information exceeds the robustness threshold; and
in response to determining that the quality feedback information exceeds the robustness threshold, concurrently updating the updated rate configuration for the modulator to a second updated rate configuration and updating the updated power configuration for the physical circuit to a second updated power configuration, wherein the second updated rate configuration and the second updated power configuration are associated with a lower robustness level than a robustness level associated with the updated rate configuration and the updated power configuration.

11. The at least one non-transitory computer readable storage medium of claim 10 , wherein the method further comprises identifying the updated rate configuration and the updated power configuration based at least in part on a length of the one or more packets.

12. The at least one non-transitory computer readable storage medium of claim 10 , wherein the method further comprises accessing a non-volatile storage of the wireless transmitter to obtain the updated rate configuration and the updated power configuration.

13. An internet of things (IoT) device comprising:
a sensor to sense information of an environmental parameter; and
a wireless transceiver coupled to the sensor, the wireless transceiver comprising:
a modulator to modulate a first packet according to a modulation characteristic of a first modulation and power pair;
at least one gain stage coupled to the modulator to apply gain to the modulated first packet according to a power characteristic of the first modulation and power pair;
a power amplifier coupled to the at least one gain stage to receive the gained modulated first packet and amplify and transmit the amplified gained modulated first packet according to the power characteristic of the first modulation and power pair; and
a dynamic adaptation circuit, for the first packet, to identify the first modulation and power pair from a first plurality of modulation and power pairs stored in a first energy map and associated with a first robustness index, wherein the first modulation and power pair comprises an optimal modulation and power pair of the first plurality of modulation and power pairs, and the dynamic adaptation circuit is to select the first robustness index based at least in part on quality feedback information from a receiver in communication with the IoT device, and when the quality feedback information is less than a first reliability threshold, for another packet, identify a different modulation and power pair stored in the first energy map, the different modulation and power pair associated with a higher robustness index than the first robustness index.

14. The IoT device of claim 13 , wherein the optimal modulation and power pair comprises a least power consumption level of the first plurality of modulation and power pairs.

15. The IoT device of claim 14 , wherein the dynamic adaptation circuit, for a second packet comprising a retransmission packet, is to identify a second modulation and power pair having a highest power consump

Assignees

• Silicon Lab Inc

Inventors

• Hoyer Hadrien
• Le Goff David

Classifications

• H04L27/2626

  Arrangements specific to the transmitter only · CPC title

• H04W52/262 Primary

  taking into account adaptive modulation and coding [AMC] scheme · CPC title

• H04L1/0004 Primary

  applied to control information · CPC title

• H04L1/1825

  Adaptation of specific ARQ protocol parameters according to transmission conditions · CPC title

• H04L1/0026

  Transmission of channel quality indication · CPC title