Low-power-consumption design and control method of narrowband communication chip

Abstract

The invention relates to the technical field of low power consumption of chips, in particular to a low power consumption design and control method of a narrowband communication chip. According to the technical scheme, by introducing the automatic sleep wake-up function, automatic power management of the chip is achieved, manual configuration turn-off is not needed, the power gating efficiency is improved, the automatic sleep wake-up process is completed through remote control, the power consumption of the chip is effectively reduced, and the reliability of the chip is improved. Meanwhile, according to the technical scheme, the service life of Internet of Things equipment can be prolonged, the maintenance cost can be reduced, the stability and reliability of the whole Internet of Things system can be improved due to the low-power-consumption design, powerful support is provided for wide popularization of Internet of Things application, and by combining the wireless communication function and the power gating technology, the application range of the Internet of Things is widened. The power consumption of the chip is reduced to the greatest extent, the power gating efficiency is improved, and the automatic sleep wake-up function is realized, so that the scene requirements of the Internet of Things chip in practical application are met.

Description

Technical Field

[0001] The present invention relates to the technical field of chip low power consumption, and particularly to a low power consumption design and control method for a narrowband communication chip. Background Art

[0002] In the application of wireless narrowband Internet of Things, power consumption has gradually become an important factor affecting the overall performance index of the system, and how to perform low power consumption design in the chip has become increasingly important.

[0003] Existing chips mainly perform low power consumption design through clock gating and power gating technologies. Clock gating reduces the circuit clock flips and thus reduces the dynamic power consumption, while power gating selectively shuts off the circuit units in the system, effectively reducing the static power consumption. However, in the existing technology, the power gating efficiency is low, and manual configuration for shutdown is required, which is difficult to apply in the Internet of Things communication module and limits its effect in practical applications. Summary of the Invention

[0004] The purpose of the present invention is to provide a low power consumption design and control method for a narrowband communication chip, so as to solve the problems in the existing technology that the power gating efficiency is low and manual configuration for shutdown is required, which is difficult to apply in the Internet of Things communication module and limits its effect in practical applications.

[0005] To achieve the above purpose, the present invention provides a low power consumption design and control method for a narrowband communication chip, and the low power consumption design and control method for the narrowband communication chip includes the following steps:

[0006] Configure the automatic sleep and wake-up function: The chip terminal configures or remotely configures to enable the automatic sleep and wake-up function locally;

[0007] Enable the RX radio frequency receiving link: The system first enables the RX radio frequency receiving link to prepare for receiving the wake-up frame from the base station;

[0008] The baseband opens the reception detection window: The baseband opens the reception detection window to detect whether the wake-up frame is received within the reception window;

[0009] Enter the sleep mode: If the wake-up frame is not successfully received at the end of the reception window, the chip enters the sleep mode;

[0010] Process after successful wake-up: If the wake-up frame is successfully received at the end of the reception window, that is, a successful wake-up occurs, the chip starts to enter the READY state.

[0011] Among them, in the step "Enter the sleep mode", when the chip is ready to enter the sleep state, it is necessary to turn off the crystal oscillator, turn on the ISOLATION isolation, save the register values, and finally turn off all LDOs except the always-on voltage domain, and the chip officially enters the sleep state.

[0012] Among them, in the step of "entering the sleep mode", it also includes opening the sleep counting window and ending the sleep state.

[0013] Among them, the step of "opening the sleep counting window" specifically means: in the always-on voltage domain, the sleep counting window is opened until the count value reaches the set value.

[0014] Among them, the step of "ending the sleep state" specifically means: when the count value reaches the set value, the chip is ready to end the sleep state. At this time, the digital LDO is turned on, the register value is restored, the isolation is cancelled, and the crystal oscillator is turned on. The chip re-enters the RX link to receive the wake-up frame state.

[0015] Among them, in the step of "processing after successful wake-up", when the chip is successfully woken up, it is necessary to first turn off the RF circuits related to RX, and after waiting for the crystal oscillator to stabilize, it officially enters the READY state.

[0016] Among them, the low-power design and control method of the narrowband communication chip further includes a timed wake-up step, and the timed wake-up step specifically means: when the sleep window count reaches the set value, actively exit the sleep state.

[0017] A low-power design and control method for a narrowband communication chip according to the present invention realizes automatic power management of the chip by introducing an automatic sleep wake-up function. There is no need for manual configuration of shutdown, thereby improving the power gating efficiency. This technical solution supports the process of automatic sleep wake-up through remote control, thereby effectively reducing the power consumption of the chip. At the same time, this technical solution can extend the service life of Internet of Things devices and reduce the maintenance cost. The low-power design helps to improve the stability and reliability of the entire Internet of Things system, providing strong support for the wide promotion of Internet of Things applications. In summary, this technical solution combines wireless communication functions and power gating technologies to minimize the power consumption of the chip, improve the power gating efficiency, and implement the automatic sleep wake-up function to meet the requirements of the actual application scenarios of Internet of Things chips. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 It is a schematic block diagram of the low-power design and control method of the narrowband communication chip provided by the present invention.

[0020] Figure 2It is the flowchart of the operation steps of the low-power design and control method of the narrowband communication chip provided by the present invention. Detailed implementation manners

[0021] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0022] Please refer to Figure 1 and Figure 2 The present invention provides a low-power design and control method for a narrowband communication chip. The low-power design and control method for the narrowband communication chip includes the following steps:

[0023] Configure the automatic sleep wake-up function: The chip terminal enables the automatic sleep wake-up function through local configuration or remote configuration.

[0024] Turn on the RX RF receiving link: The system first turns on the RX RF receiving link to prepare for receiving the wake-up frame from the base station.

[0025] The baseband opens the receive detection window: The baseband opens the receive detection window to detect whether the wake-up frame is received within the receive window.

[0026] Enter the sleep mode: If the wake-up frame is not successfully received at the end of the receive window, the chip enters the sleep mode. At this time, the crystal oscillator is turned off, the ISOLATION isolation is turned on, the register values are saved, and all LDOs except the always-on voltage domain are turned off.

[0027] The sleep counting window is enabled: In the always-on voltage domain, the sleep counting window is enabled until the count value reaches the set value.

[0028] End the sleep state: When the count value reaches the set value, the chip is ready to end the sleep state. At this time, the digital LDO is turned on, the register values are restored, the isolation is cancelled, and the crystal oscillator is turned on. The chip re-enters the RX link to receive the wake-up frame state.

[0029] Processing after successful wake-up: After the chip is successfully woken up, it is necessary to first turn off the RF circuits related to RX, and after waiting for the crystal oscillator to stabilize, it officially enters the READY state.

[0030] In this embodiment, by introducing the automatic sleep and wake-up function, the technical solution realizes the automatic power management of the chip without manual configuration of shutdown, thereby improving the power gating efficiency. The technical solution supports the process of automatic sleep and wake-up through remote control, thus effectively reducing the power consumption of the chip. At the same time, the technical solution can extend the service life of the Internet of Things device and reduce the maintenance cost. The low-power design helps to improve the stability and reliability of the entire Internet of Things system and provides strong support for the wide promotion of Internet of Things applications. In summary, through the combination of the wireless communication function and the power gating technology, the technical solution reduces the power consumption of the chip to the greatest extent, improves the power gating efficiency, and realizes the automatic sleep and wake-up function to meet the scenario requirements of Internet of Things chips in practical applications.

[0031] Further, the low-power design and control method of the narrowband communication chip further include a timing wake-up step, and the timing wake-up step specifically refers to: actively exiting the sleep state when the sleep window count reaches the set value.

[0032] In this embodiment, the technical solution not only supports the process of automatic sleep and wake-up through remote control, but also sets a timing wake-up function, realizing double guarantees of remote and local wake-up.

[0033] The above-disclosed is only a preferred embodiment of the present invention. Of course, it cannot be used to limit the scope of the rights of the present invention. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A low power consumption design and control method for a narrowband communication chip, characterized in that: The steps include: Configure the automatic sleep and wake-up function: The chip terminal can enable the automatic sleep and wake-up function in local or remote configuration; Start the RX RF receiving link: The system first starts the RX RF receiving link and prepares to receive the wake-up frame from the base station; The baseband opens the receiving detection window: The baseband opens the receiving detection window and detects whether a wake-up frame is received within the receiving window; Entering sleep mode: If the wake-up frame is not successfully received at the end of the receiving window, the chip enters sleep mode; Post-processing after successful wake-up: If the wake-up frame is successfully received at the end of the receiving window, it is a successful wake-up and the chip begins to enter the READY state.

2. The low power consumption design and control method of a narrowband communication chip as claimed in claim 1, characterized in that: In step "Enter Sleep Mode", when the chip is ready to enter sleep mode, it is necessary to turn off the crystal oscillator, turn on ISOLATION isolation, save the register value, and finally turn off all LDOs except the normally-on voltage domain, and the chip officially enters sleep mode.

3. The low power consumption design and control method of a narrowband communication chip as claimed in claim 2, characterized in that: The step of "entering sleep mode" also includes opening a sleep count window and ending the sleep state.

4. The low power consumption design and control method of a narrowband communication chip as claimed in claim 3, characterized in that: The step "sleep count window opening" specifically means: in the normally open voltage domain, the sleep count window is opened until the count value reaches the set value.

5. The low power consumption design and control method of a narrowband communication chip as claimed in claim 4, characterized in that: The step "ending the sleep state" specifically means: when the count value reaches the set value, the chip is ready to end the sleep state. At this time, the digital LDO is turned on, the register value is restored, the isolation is canceled, and the crystal oscillator is turned on, and the chip re-enters the RX link to receive the wake-up frame state.

6. The low power consumption design and control method of a narrowband communication chip as claimed in claim 5, characterized in that: In the step "Post-successful wake-up processing", after the chip is successfully awakened, it is necessary to first turn off the RX-related RF circuits and wait for the crystal oscillator to stabilize before officially entering the READY state.

7. The low power consumption design and control method of a narrowband communication chip as claimed in claim 6, characterized in that: The low power consumption design and control method of the narrowband communication chip also includes a timed awakening step, which specifically refers to: actively exiting the sleep state when the sleep window count reaches a set value.

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