WO2023151416A1

WO2023151416A1 - Baseband chip, voltage adjusting method, and terminal device

Info

Publication number: WO2023151416A1
Application number: PCT/CN2022/143532
Authority: WO
Inventors: 周洁
Original assignee: Oppo广东移动通信有限公司
Priority date: 2022-02-10
Filing date: 2022-12-29
Publication date: 2023-08-17
Also published as: CN114527819A; CN114527819B

Abstract

Embodiments of the present application disclose a baseband chip, a voltage adjusting method, and a terminal device. The baseband chip comprises at least one subsystem and a DVFS management system, wherein each subsystem is separately used for calculating an expected voltage in a next adjustment period; the DVFS management system is used for sending a voltage adjustment request to a power management module, wherein the voltage adjustment request is used for indicating a target voltage outputted by the power management module to the baseband chip in the next adjustment period, and the target voltage is not less than the expected voltage of each subsystem in the next adjustment period.

Description

Baseband chip, voltage adjustment method and terminal equipment

Cross References to Related Applications

This application claims the priority of the Chinese patent application with the application number 202210126404.X and the application name "Baseband Chip, Voltage Adjustment Method and Terminal Equipment" filed on February 10, 2022. The entire content of the Chinese patent application is incorporated by reference incorporated in this application.

technical field

The present application relates to the field of chip design, in particular to a baseband chip, a voltage adjustment method and terminal equipment.

Background technique

For existing cellular mobile system terminals, the Dynamic Voltage and Frequency Scaling (DVFS) scheme is mostly at the scene level, for example, for paging, the voltage and frequency are increased during paging, and the voltage and frequency are reduced after paging is completed. , The interval between two voltage adjustments is more than 10ms. The more advanced ones aim at specific time slots. Before the specific time slot arrives, the voltage and frequency are increased, and after the specific time slot ends, the voltage and frequency are reduced. The interval between two voltage adjustments is more than 500us.

It can be seen that the current common DVFS technology is limited by the decision-making time, transmission time, and adjustment time in the voltage adjustment process, and cannot further shorten the interval between two voltage adjustment changes. A defect that does not enable fine control of voltage adjustment.

Contents of the invention

Embodiments of the present application provide a baseband chip, a voltage adjustment method, and a terminal device, which can effectively shorten the processing time of voltage adjustment, thereby reducing system power consumption, and at the same time realize fine control of voltage adjustment processing.

The technical scheme of the embodiment of the application is realized in this way:

In the first aspect, the embodiment of the present application provides a baseband chip, the baseband chip includes at least one subsystem and a DVFS management system, wherein,

Each subsystem is used to calculate the expected voltage in the next adjustment period;

The DVFS management system is configured to send a voltage adjustment request to the power management module; wherein the voltage adjustment request is used to indicate a target voltage output by the power management module to the baseband chip in the next adjustment period, and the target voltage Not less than the expected voltage of each subsystem in the next trim cycle.

In the second aspect, an embodiment of the present application provides a voltage adjustment method, the voltage adjustment method is applied to a terminal device, and the terminal device is configured with a baseband chip and a power management module, and the power management module is used to power the baseband chip Power supply, the baseband chip includes at least one subsystem and a DVFS management system, the method includes:

Each subsystem calculates the expected voltage during the next adjustment period;

The DVFS management system sends a voltage adjustment request to the power management module; wherein, the voltage adjustment request is used to indicate the target voltage that the power management module outputs to the baseband chip in the next adjustment cycle, and the target voltage is not less than the expected voltage of each subsystem during the next trim cycle.

In a third aspect, an embodiment of the present application provides a terminal device, including: a power management module and the baseband chip according to the first aspect, where the power management module is configured to supply power to the baseband chip.

Embodiments of the present application provide a baseband chip, a voltage adjustment method, and a terminal device. The baseband chip includes at least one subsystem and a DVFS management system, wherein each subsystem is used to calculate the expected voltage in the next adjustment cycle; DVFS The management system is used to send a voltage adjustment request to the power management module; wherein, the voltage adjustment request is used to indicate the target voltage that the power management module outputs to the baseband chip in the next adjustment cycle, and the target voltage is not less than the target voltage of each subsystem in the next adjustment cycle desired voltage. That is to say, in the embodiment of this application, the DVFS management system configured in the baseband chip of the terminal device can respond to the voltage adjustment requirements of the subsystem in a timely manner by obtaining the expected voltage of the subsystem, shortening the perceived decision-making of voltage adjustment. At the same time, the transmission time and adjustment time of voltage adjustment can be further shortened by using high-speed data interface and fast-response power management module, which can effectively shorten the processing time of voltage adjustment, thereby reducing system power consumption and realizing voltage adjustment Fine control of processing.

Description of drawings

FIG. 1 is a schematic diagram of a DVFS scheme;

Fig. 2 is a schematic diagram of the implementation framework of the DVFS scheme;

FIG. 3 is a schematic diagram of the composition and structure of the baseband chip;

FIG. 4 is a schematic diagram of the composition structure of the DVFS management system;

Fig. 5 is a schematic diagram of the realization effect of the voltage adjustment method;

FIG. 6 is a schematic diagram of the implementation flow of the voltage adjustment method;

FIG. 7 is a second schematic diagram of the implementation flow of the voltage adjustment method;

FIG. 8 is a schematic diagram of a composition structure of a terminal device;

9 is a schematic diagram of a baseband chip;

FIG. 10 is a schematic diagram of the third implementation flow of the voltage adjustment method;

FIG. 11 is a schematic diagram 4 of the implementation flow of the voltage adjustment method;

12 is a schematic diagram of a power management module;

FIG. 13 is a schematic diagram of the voltage adjustment process.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the specific embodiments described here are only used to explain the related application, not to limit the application. It should also be noted that, for the convenience of description, only the parts related to the relevant application are shown in the drawings.

Dynamic Voltage and Frequency Scaling (DVFS) technology refers to the realization of low power consumption through the comprehensive design of software and hardware, and has received more attention in the low power consumption design of microprocessors. Among them, the DVFS technology allows dynamic adjustment of circuit operating voltage and frequency on the premise of maintaining the normal operation of the system, which can not only reduce the power consumption of the circuit but also prolong the service life of the circuit.

The workflow of a typical DVFS system includes: sampling the system signal load, performing performance calculation and prediction through corresponding algorithms, performing DVFS adjustments to the circuit working state according to the prediction results, and then implementing state adjustment and maintenance by the power management system. The adjustment of DVFS includes dynamic voltage adjustment and clock frequency adjustment. When the operating frequency is predicted to change from high to low, the frequency is lowered first, and then the voltage is lowered; when the operating frequency is predicted to increase, the voltage is increased first, and then the frequency is increased.

For existing cellular mobile system terminals, DVFS solutions are mostly at the scene level. For example, for paging, the voltage and frequency are increased during paging, and the voltage and frequency are reduced after paging is completed. The interval between two voltage adjustments is usually more than 10ms. Figure 1 is a schematic diagram of the DVFS scheme, as shown in Figure 1, more advanced for a specific time slot, before the arrival of the specific time slot, increase the voltage and frequency (for example, the voltage is increased from V1 to V2), after the end of the specific time slot, reduce Voltage and frequency (for example, the voltage is reduced from V2 to V1), the interval t between two voltage adjustments is above 500us.

Figure 2 is a schematic diagram of the implementation framework of the DVFS solution. As shown in Figure 2, the current common DVFS framework mainly includes three parts: baseband, radio frequency and power management module. Among them, the power management module is responsible for supplying power to the baseband part and radio frequency part of the terminal. , the power supply voltage is controlled by the baseband part, and the baseband part sends a voltage adjustment command to the power management module, and the power management module adjusts the voltage after receiving the voltage adjustment command.

If the baseband part or the radio frequency part needs to increase the operating frequency, it is generally necessary to send an adjustment command to increase the voltage to the power management module first. After the power management module completes the adjustment of the corresponding increased voltage, the baseband part or the radio frequency part can increase the frequency. If the baseband part or the radio frequency part needs to reduce the operating frequency, the baseband part or the radio frequency part can directly reduce the frequency first, and then reduce the voltage, so as to achieve the purpose of safe and stable work and avoid abnormalities caused by voltage regulation.

In order to solve the above problems, in the embodiment of this application, the DVFS management system configured in the baseband chip of the terminal device can respond to the voltage adjustment requirements of the subsystem in time by obtaining the expected voltage of the subsystem, shortening the perception of voltage adjustment. At the same time, the transmission time and adjustment time of voltage adjustment can be further shortened by using high-speed data interface and fast-response power management module, which can effectively shorten the processing time of voltage adjustment, thereby reducing system power consumption and realizing voltage adjustment. Fine-grained control over tweak processing.

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

An embodiment of the present application provides a baseband chip, where the baseband chip includes at least one subsystem and a DVFS management system.

In the embodiment of the present application, FIG. 3 is a schematic diagram of the composition and structure of the baseband chip. As shown in FIG. 3 , the baseband chip 10 may include at least one subsystem 11, wherein the at least one subsystem 11 can all work at the same voltage Under the domain; the baseband chip 10 may further include a DVFS management system 12, and the DVFS management system 12 may be used for voltage adjustment processing.

Further, in the embodiment of the present application, each subsystem 11 can be used to calculate the expected voltage in the next adjustment cycle respectively.

It can be understood that, in the embodiment of the present application, the expected voltage of each subsystem in the next adjustment period may predict the voltage required by each subsystem in the next adjustment period. Wherein, the expected voltage of each subsystem in the next adjustment cycle can be used to predict the voltage required by each subsystem when executing a task, and can also be used to predict the voltage required by each subsystem when it is in a low power consumption mode after executing a task. required voltage.

That is to say, in the embodiment of the present application, regardless of whether the subsystem is in the working state of performing tasks, as long as the voltage required by the subsystem changes, the expected voltage in the next adjustment cycle can be generated.

It should be noted that, in the embodiment of the present application, each subsystem can be specifically used to decompose the current task, determine the subtask corresponding to the current task, and determine the expected voltage in the next adjustment period according to the subtask.

In the embodiment of the present application, each subsystem in the baseband chip may decompose and process the current task first, so as to obtain at least one subtask corresponding to the current task.

It should be noted that, in the embodiment of the present application, for any subsystem of at least one subsystem of the baseband chip, after the task is obtained, the task can be decomposed into at least one subtask, and then completed according to time sequence The at least one subtask. For example, for the current task, the subsystem can decompose and obtain multiple subtasks corresponding to the current task, which are respectively subtask 1, subtask 2, subtask 3, subtask 4, and subtask 5, and then the subsystem can execute subtask 1 in sequence , Subtask 2, Subtask 3, Subtask 4, Subtask 5.

In the embodiment of this application, after completing the decomposition of the current task and obtaining the subtasks corresponding to the current task, each subsystem can determine the expected voltage of the subtask in the next adjustment period, and then transmit the expected voltage to DVFS Management system, so that the DVFS management system can perform voltage adjustment processing according to the expected voltage.

Further, in the embodiment of the present application, each subsystem can predict the voltage required to execute the subtask, so as to determine the expected voltage in the next adjustment cycle. Specifically, the subsystem can first determine the corresponding frequency when executing the subtask, and then use the frequency to further determine the corresponding voltage. For example, Table 1 shows the correspondence between subtasks, frequencies, and voltages. As shown in Table 1, when performing different subtasks, the frequency required by the subsystem may be different, and accordingly, the required voltage may also be different, as shown in For subtask 3, the subsystem can predict that the corresponding operating frequency may be 500MHz, and then it can determine that the expected voltage in the next adjustment period may be 0.8V.

Table 1

the	频率(MHz)Frequency (MHz)	电压(V)Voltage (V)
子任务1Subtask 1	100100	0.60.6
子任务2 Subtask 2	200200	0.70.7
子任务3Subtask 3	500500	0.80.8
子任务4Subtask 4	300300	0.70.7
子任务5Subtask 5	100100	0.50.5

Further, in the embodiment of the present application, the sub-system sequentially executes the sub-tasks obtained after decomposition, therefore, the sub-system also sequentially transmits the expected voltages of different sub-tasks in the next adjustment period to the DVFS management system. For example, before subtask 1 is executed, the subsystem may notify the DVFS management system of the expected voltage of subtask 1 in the next adjustment period, and the subtask Task 4 informs the DVFS management system of the expected voltage in the next adjustment period. Specifically, the subsystem may choose to sequentially notify the DVFS management system of the expected voltage of each subtask in the next adjustment period by way of voting.

It should be noted that, in the embodiment of this application, after completing a subtask and before starting the next subtask, the subsystem can also enter a preset low power consumption mode. The preset low power consumption voltage corresponding to the power consumption mode is transmitted to the DVFS management system as the expected voltage in the next adjustment cycle.

Further, in the embodiment of the present application, the DVFS management system 12 can be used to send a voltage adjustment request to the power management module; wherein, the voltage adjustment request is used to indicate the output target of the power management module to the baseband chip in the next adjustment cycle. The voltage, specifically, the target voltage is not less than the expected voltage of each subsystem in 11 the next adjustment period.

In the embodiment of the present application, FIG. 4 is a schematic structural diagram of a DVFS management system. As shown in FIG. 4 , the DVFS management system 12 may include a perception unit 121 and a decision unit 122 .

It should be noted that, in the embodiment of the present application, the sensing unit can be used to obtain the expected voltage of each subsystem in the next adjustment cycle; the decision unit can be used to obtain the expected voltage of each subsystem in the next adjustment cycle according to the within the desired voltage, determine the target voltage.

Based on the above-mentioned FIG. 4 , the DVFS management system 12 may include a voltage regulation control unit 123 and a high-speed data interface 124 .

It should be noted that, in the embodiment of the present application, the voltage regulation control unit can be used to generate a voltage adjustment request according to the voltage value of the target voltage; wherein, the voltage regulation control unit can specifically be used to generate a voltage adjustment request for the target voltage according to a preset compression format. Packet processing is performed to generate a voltage adjustment request.

It should be noted that, in the embodiment of the present application, the high-speed data interface can be used to send the voltage adjustment request to the power management module; wherein, the high-speed data interface can specifically be used to send the voltage adjustment request to the power supply according to the preset interface format management module.

That is to say, in the embodiment of the present application, the DVFS management system may be composed of a sensing unit, a decision-making unit, a voltage regulation control unit and a high-speed data interface. Among them, the sensing unit can be used to obtain the expected voltage of each subsystem in at least one subsystem, the decision-making unit can be used to determine the final target voltage according to the expected voltage of each subsystem, and the voltage regulation control unit can control the voltage according to the agreed format. The target voltage is packaged and then sent to the high-speed data interface, which can further send it to the power management module.

It can be understood that, in the embodiment of the present application, the power management module and the baseband chip can communicate with each other, so as to realize the request and feedback processing of voltage adjustment.

Further, in the embodiment of the present application, the power management module may include a high-speed communication interface, a control register, and a DCDC circuit; wherein, the high-speed communication interface may be used to receive the voltage adjustment request; the control register may be used to adjusting the voltage value of the target voltage indicated by the request, and controlling the DCDC circuit to output the target voltage.

It should be noted that, in the embodiment of the present application, the DVFS management system may communicate with each subsystem respectively.

Further, in the embodiment of the present application, the DVFS management system may be specifically configured to obtain the expected voltage of each subsystem in the next adjustment period; and then determine the target voltage according to the expected voltage of each subsystem in the next adjustment period.

In the embodiment of this application, after obtaining the expected voltage of each subsystem in the next adjustment period, the DVFS management system can determine the target voltage for voltage adjustment according to the expected voltage, and then generate the voltage according to the target voltage The adjustment request can further indicate the target voltage output by the power management module to the baseband chip in the next adjustment cycle by sending the voltage adjustment request.

It can be understood that, in the embodiment of the present application, the target voltage may be used to determine the adjusted voltage. Wherein, the target voltage may be generated by the DVFS management system in combination with all expected voltages of all subsystems in the baseband chip in the next adjustment period and the current system voltage.

Further, in the embodiment of the present application, the DVFS management system can also be used to judge whether the voltage adjustment condition is satisfied according to the expected voltage of each subsystem in the next adjustment period and the current system voltage. Specifically, the DVFS management system can compare the expected voltage of the subsystem in the next adjustment period with the current system voltage to obtain a comparison result, so that it can further judge whether the voltage adjustment condition is met according to the comparison result.

It can be understood that, in the embodiment of the present application, the current system voltage may represent the current voltage of the baseband chip in the terminal device. Specifically, since all subsystems in the baseband chip can work in the same voltage domain, the current system voltage can also represent the current voltage of each subsystem in the baseband chip.

It should be noted that, in the embodiment of the present application, the DVFS management system may be specifically configured to determine that a subsystem satisfies the voltage adjustment condition if the expected voltage of a subsystem in the next adjustment cycle is greater than the current system voltage.

That is to say, in the embodiment of this application, after the DVFS management system compares the expected voltage of the subsystem in the next adjustment cycle with the current system voltage, if the comparison result shows that the expected voltage is greater than the current system voltage, it can be considered that it is necessary to perform If the voltage adjustment process is improved, then the DVFS management system can determine that the voltage adjustment condition is met.

It can be understood that, in the embodiment of the present application, when the obtained expected voltage of any subsystem in the next adjustment cycle is greater than the current system voltage, it can be determined that voltage adjustment processing is required. For example, if the expected voltage notified by a subsystem is 0.8V and the current system voltage is 0.6V, it can be determined that the voltage adjustment condition is satisfied.

It should be noted that, in the embodiment of this application, the DVFS management system can be specifically used to: if the expected voltage of a subsystem in the next adjustment cycle is lower than the current system voltage, then it can be based on other subsystems in the next adjustment cycle The expected voltage and the current system voltage further determine whether the voltage adjustment condition is met.

That is to say, in the embodiment of this application, after the DVFS management system compares the expected voltage of the subsystem in the next adjustment cycle with the current system voltage, if the comparison result shows that the expected voltage is less than the current system voltage, it can be considered that it is necessary to perform The adjustment process of lowering the voltage, however, the DVFS management system also needs to consider the voltage adjustment needs of other subsystems other than this subsystem, so the DVFS management system also needs to continue according to the expected voltage of other subsystems in the next adjustment cycle and the current system voltage Determine whether the voltage adjustment condition is met.

It can be understood that, in the embodiment of this application, when the obtained expected voltage of any subsystem in the next adjustment cycle is lower than the current system voltage, the DVFS management system cannot directly determine whether to perform voltage adjustment processing, but It is necessary to combine the relationship between the expected voltage of other subsystems in the next adjustment cycle and the current system voltage for further judgment processing.

Further, in the embodiment of the present application, the DVFS management system can specifically be used to determine that a subsystem meets the voltage requirements if the maximum voltage among the expected voltages of other subsystems in the next adjustment period is less than the current system voltage. Adjust the conditions.

It can be understood that, in the embodiment of the present application, after the DVFS management system compares the maximum voltage among the expected voltages of other subsystems in the next adjustment period with the current system voltage, if the comparison result shows that the maximum voltage is equal to the current system voltage, It can be considered that the maximum voltage among the required voltages of all subsystems in the next adjustment period cannot be lower than the current system voltage, so it can be determined that the voltage adjustment condition is not satisfied, that is, the DVFS management system can determine that the voltage adjustment condition is not satisfied.

It can be understood that, in the embodiment of the present application, after the DVFS management system compares the maximum voltage among the expected voltages of other subsystems in the next adjustment period with the current system voltage, if the comparison result shows that the maximum voltage is less than the current system voltage, It can be considered that the required voltages of all subsystems are lower than the current system voltage, so it can be determined that the voltage adjustment conditions are met, that is, the DVFS management system can determine that the voltage adjustment conditions are met.

Further, in the embodiment of the present application, if the expected voltage of the subsystem in the next adjustment cycle is greater than the current system voltage, then the DVFS management system can specifically be used to determine the expected voltage as the target voltage.

That is to say, in the embodiment of the present application, when the DVFS management system determines the target voltage, if the expected voltage of the subsystem in the next adjustment cycle is greater than the current system voltage, it is necessary to perform adjustment processing of raising the voltage at this time, correspondingly, The DVFS management system can directly determine the desired voltage as the target voltage.

Further, in the embodiment of the present application, if the expected voltage of the subsystem in the next adjustment period is lower than the current system voltage, the DVFS management system can be specifically used to set the maximum expected voltage of other subsystems in the next adjustment period to The voltage is determined as the target voltage.

That is to say, in the embodiment of the present application, when the DVFS management system determines the target voltage, if the expected voltage of the subsystem in the next adjustment period is lower than the current system voltage, it is necessary to perform the adjustment process of reducing the voltage. Correspondingly, The DVFS management system may determine the maximum voltage among the expected voltages of other subsystems in the next adjustment period as the target voltage.

It can be seen that, in the embodiment of the present application, for a subsystem, the corresponding target voltage can be the expected voltage of the subsystem in the next adjustment period, or it can be the expected voltage of other subsystems in the next adjustment period. The maximum voltage among the expected voltages, that is, the target voltage is not less than the expected voltage of each subsystem in the next adjustment period.

The DVFS management system with baseband chip configuration proposed in the embodiment of this application can obtain the voltage adjustment requirements of each subsystem through a voting mechanism, and uses a high-speed transmission interface and a fast-response power supply to design a DVFS solution that supports In-slot system structure. Among them, when realizing a slot, (for example, when the sub-carrier space (SCS) is 30, 1slot=500us; when the SCS is 60, 1slot=250us), accurate high-speed voltage multiple switching, for example Within 500us, the baseband only uses high voltage in the tens of microseconds of decoding/demodulation, and immediately lowers the voltage to save power after completion. It is even possible to decompose 500us into several sections, and each section uses a different voltage.

Figure 5 is a schematic diagram of the implementation effect of the voltage adjustment method. As shown in Figure 5, taking the Physical Downlink Control Channel (PDCCH) as an example, within a time window of 0.5 ms, according to business requirements and current conditions, 1 The voltage adjustment process of rising (the voltage is raised from V1 to V2) and down (the voltage is lowered from V2 to V1) realizes fine control of the voltage adjustment process.

An embodiment of the present application provides a baseband chip, the baseband chip includes at least one subsystem and a DVFS management system, wherein each subsystem is used to calculate the expected voltage in the next adjustment cycle; the DVFS management system is used to provide The power management module sends a voltage adjustment request; wherein, the voltage adjustment request is used to indicate the target voltage output by the power management module to the baseband chip in the next adjustment cycle, and the target voltage is not less than the expected voltage of each subsystem in the next adjustment cycle. That is to say, in the embodiment of this application, the DVFS management system configured in the baseband chip of the terminal device can respond to the voltage adjustment requirements of the subsystem in a timely manner by obtaining the expected voltage of the subsystem, shortening the perceived decision-making of voltage adjustment. At the same time, the transmission time and adjustment time of voltage adjustment can be further shortened by using high-speed data interface and fast-response power management module, which can effectively shorten the processing time of voltage adjustment, thereby reducing system power consumption and realizing voltage adjustment Fine control of processing.

An embodiment of the present application provides a voltage adjustment method, which can be applied to a terminal device, wherein the terminal device can be configured with a baseband chip and a power management module, the power management module is used to supply power to the baseband chip, and the baseband chip Can include at least one subsystem and a DVFS management system.

It should be noted that, in the embodiment of this application, each subsystem can first calculate the expected voltage in the next adjustment cycle; then, the DVFS management system sends a voltage adjustment request to the power management module; wherein, the voltage adjustment request is used to indicate The power management module outputs a target voltage to the baseband chip in the next adjustment period, and the target voltage is not less than the expected voltage of each subsystem in the next adjustment period.

It can be understood that, in the embodiment of the present application, when each subsystem calculates the expected voltage in the next adjustment period, each subsystem can decompose the current task first, and determine the subtask corresponding to the current task; and then can Determining the desired voltage in the next adjustment cycle according to the subtask.

Further, in the embodiment of the present application, the DVFS management system can obtain the expected voltage of each subsystem in the next adjustment cycle; then, the target can be further determined according to the expected voltage of each subsystem in the next adjustment cycle Voltage.

Further, in the embodiment of the present application, the DVFS management system may include a sensing unit and a decision-making unit, wherein the sensing unit may specifically obtain the expected voltage of each subsystem in the next adjustment cycle; the decision-making unit may specifically obtain the expected voltage of each subsystem according to the The expected voltage of each subsystem in the next adjustment cycle determines the target voltage.

Further, in the embodiment of the present application, the DVFS management system may further include a voltage regulation control unit and a high-speed data interface. Specifically, when the DVFS management system sends a voltage adjustment request to the power management module, the voltage regulation control unit can generate the voltage adjustment request according to the voltage value of the target voltage; the high-speed data interface can send the voltage adjustment request to the power management module.

It should be noted that, in the embodiment of the present application, the voltage adjustment control unit may package the target voltage according to a preset compression format to generate the voltage adjustment request. Correspondingly, the high-speed data interface can send the voltage adjustment request to the power management module according to the preset interface format.

Further, in the embodiment of the present application, the DVFS management system may also judge whether the voltage adjustment condition is satisfied according to the expected voltage of each subsystem in the next adjustment period and the current system voltage. Specifically, if the expected voltage of a subsystem in the next adjustment cycle is greater than the current system voltage, the DVFS management system may determine that the subsystem meets the voltage adjustment condition. If the expected voltage of a subsystem in the next adjustment period is lower than the current system voltage, the DVFS management system also needs to judge whether the voltage adjustment condition is satisfied according to the expected voltage of other subsystems in the next adjustment period and the current system voltage. Wherein, if the maximum voltage among the expected voltages of other subsystems in the next adjustment period is smaller than the current system voltage, then the DVFS management system may determine that the one subsystem meets the voltage adjustment condition.

Further, in the embodiment of this application, when the DVFS management system determines the target voltage according to the expected voltage of each subsystem in the next adjustment period, if the expected voltage of a subsystem in the next adjustment period is greater than the current system voltage, then the DVFS management system can determine the expected voltage of the subsystem in the next adjustment period as the target voltage.

Further, in the embodiment of this application, when the DVFS management system determines the target voltage according to the expected voltage of each subsystem in the next adjustment period, if the expected voltage of a subsystem in the next adjustment period is less than the current system voltage, then the DVFS management system may determine the maximum voltage among the expected voltages of other subsystems in the next adjustment period as the target voltage.

Figure 6 is a schematic diagram of the implementation flow of the voltage adjustment method 1. As shown in Figure 6, in the embodiment of the present application, the method for terminal equipment to perform voltage adjustment may include the following steps:

Step 101. When the expected voltage of the first subsystem in the next adjustment period is obtained, the DVFS management system judges whether the voltage adjustment condition is met according to the expected voltage and the current system voltage; wherein, the first subsystem is at least one of the subsystems any subsystem.

In the embodiment of the present application, when the expected voltage of the first subsystem in the next adjustment cycle is obtained, the DVFS management system can judge whether the voltage adjustment condition is satisfied according to the expected voltage and the current system voltage.

It can be understood that, in the embodiments of the present application, the terminal device can be various electronic devices with communication functions, including but not limited to mobile phones, notebook computers, digital broadcast receivers, personal digital assistants (Personal Digital Assistant, PDA), tablet computer (PAD), portable multimedia player (Portable Media Player, PMP), vehicle electronic equipment (such as vehicle navigation electronic equipment) and other mobile electronic equipment, as well as digital television (TV), desktop computer, etc. Secure electronic equipment.

It should be noted that, in the embodiment of the present application, the terminal device may include a power management module and a baseband chip, wherein the power management module and the baseband chip can communicate with each other, so as to implement voltage adjustment request and feedback processing.

Further, in the embodiment of the present application, the baseband chip configured in the terminal device may include at least one subsystem, where the at least one subsystem may respectively perform tasks in the same voltage domain. The baseband chip configured in the terminal device may further include a DVFS management system, wherein the DVFS management system may respectively communicate with at least one subsystem.

In the embodiment of the present application, the DVFS management system may be composed of a sensing unit, a decision-making unit, a high-speed data interface, and a voltage regulation control unit. Among them, the sensing unit can be used to obtain the expected voltage of each subsystem in at least one system, the decision-making unit can be used to determine the final target voltage according to the expected voltage of each subsystem, and the voltage regulation control part can set the target voltage according to the agreed format. The voltage is packaged and then sent to the high-speed data interface, which can further send it to the power management module.

It should be noted that, in this embodiment of the application, the first subsystem may be any one of at least one subsystem, that is, whenever any one of at least one subsystem expects When the voltage is updated, the terminal device can respond to the update of the expected voltage and execute a process of judging whether to perform voltage adjustment.

It can be understood that, in the embodiment of the present application, the expected voltage of the first subsystem in the next adjustment period may predict the voltage required by the first subsystem in the next adjustment period. Wherein, the expected voltage of the first subsystem in the next adjustment cycle can be used to predict the voltage required by the first subsystem when performing tasks, and can also be used to predict that the first subsystem will be in low power consumption after performing tasks mode required voltage.

That is to say, in the embodiment of the present application, regardless of whether the first subsystem is in the working state of performing tasks, as long as the voltage required by the first subsystem changes, the expected voltage in the next adjustment cycle can be generated.

Further, in the embodiment of the present application, after obtaining the expected voltage of the first subsystem in the next adjustment period, the DVFS management system can determine whether the voltage adjustment condition is satisfied according to the expected voltage and the current system voltage. Specifically, the DVFS management system can compare the expected voltage of the first subsystem in the next adjustment period with the current system voltage to obtain a comparison result, so that it can further judge whether the voltage adjustment condition is satisfied according to the comparison result.

It should be noted that, in the embodiment of the present application, after the DVFS management system compares the expected voltage of the first subsystem in the next adjustment cycle with the current system voltage, if the comparison result shows that the expected voltage is greater than the current system voltage, it can If it is considered that it is necessary to adjust the boost voltage, then the DVFS management system can determine that the voltage adjustment condition is met.

It should be noted that, in the embodiment of the present application, after the DVFS management system compares the expected voltage of the first subsystem in the next adjustment cycle with the current system voltage, if the comparison result shows that the expected voltage is equal to the current system voltage, it can If it is deemed unnecessary to perform voltage adjustment processing, then the DVFS management system may determine that the voltage adjustment condition is satisfied.

It should be noted that, in the embodiment of the present application, after the DVFS management system compares the expected voltage of the first subsystem in the next adjustment cycle with the current system voltage, if the comparison result shows that the expected voltage is less than the current system voltage, it can It is considered that it is necessary to adjust the voltage reduction. However, the DVFS management system also needs to consider the voltage adjustment needs of other subsystems other than the first subsystem. Therefore, the DVFS management system also needs to update the expected voltage list according to the expected voltage, and then based on the expected voltage list and the current system voltage to further determine whether the voltage adjustment condition is met.

Step 102, if it is determined that the voltage adjustment condition is satisfied, the DVFS management system determines the target voltage, and generates a voltage adjustment request according to the target voltage.

In the embodiment of the present application, when the expected voltage of the first subsystem in the next adjustment period is obtained, the DVFS management system judges whether the voltage adjustment condition is met according to the expected voltage and the current system voltage, and if it is determined that the voltage adjustment condition is met, Then the DVFS management system can further determine the target voltage for voltage adjustment processing, and then generate a voltage adjustment request according to the target voltage.

Furthermore, in the embodiment of the present application, when the DVFS management system determines the target voltage, if the expected voltage is greater than the current system voltage, it is necessary to adjust the boosted voltage at this time. Correspondingly, the DVFS management system can directly determine the expected voltage is the target voltage.

Furthermore, in the embodiment of the present application, when the DVFS management system determines the target voltage, if the expected voltage is lower than the current system voltage, it needs to perform adjustment processing to reduce the voltage. Correspondingly, the DVFS management system can list the expected voltage The maximum voltage is determined as the target voltage.

It should be noted that, in the embodiment of the present application, when generating a voltage adjustment request according to the target voltage, the DVFS management system may choose to first package the target voltage according to a preset compression format, so as to generate a corresponding voltage adjustment request.

Step 103, the DVFS management system sends a voltage adjustment request to the power management module to complete the voltage adjustment process.

In the embodiment of the present application, if it is determined that the voltage adjustment condition is met, then the DVFS management system can send a voltage adjustment request to the power management module after the DVFS management system determines the target voltage and generates a voltage adjustment request according to the target voltage, so that The power management module completes the voltage adjustment process based on the voltage adjustment request.

It can be understood that, in the embodiment of the present application, when the DVFS management system sends the voltage adjustment request to the power management module, it may choose to send the voltage adjustment request to the power management module according to a preset interface format.

Further, in the embodiment of the present application, the DVFS management system can be configured with a voltage regulation control unit and a high-speed data interface, wherein the voltage regulation control unit and the high-speed data interface can be used for generating and transmitting voltage regulation requests.

It should be noted that, in the embodiment of the present application, when the DVFS management system generates a voltage adjustment request according to the target voltage, the voltage regulation control unit may choose to first package the target voltage according to a preset compression format to generate a voltage adjustment request, Then transmit the voltage adjustment request to the high-speed data interface, and then, the high-speed data interface can send the voltage adjustment request to the power management module according to a preset interface format.

Further, in the embodiment of the present application, after receiving the voltage adjustment request sent by the baseband chip, the power management module in the terminal device can determine the corresponding target voltage based on the voltage adjustment request, and then perform voltage adjustment according to the target voltage. Adjust processing. Specifically, the power management module can control the real-time output voltage according to the target voltage.

In the embodiment of the present application, FIG. 7 is a schematic diagram of the second implementation flow of the voltage adjustment method. As shown in FIG. 7, the DVFS management system in the baseband chip of the terminal device judges whether the voltage adjustment condition is satisfied according to the expected voltage and the current system voltage. The method may include the steps of:

Step 201. If the expected voltage is greater than the current system voltage, the DVFS management system determines that the voltage adjustment condition is satisfied.

In the embodiment of this application, after the DVFS management system obtains the expected voltage of the first subsystem in the next adjustment period, it can compare the expected voltage with the current system voltage, and if the comparison result is that the expected voltage is greater than the current system voltage , then the DVFS management system can determine that the voltage adjustment condition is satisfied, and then continue to execute the voltage adjustment processing flow.

It can be understood that, in the embodiment of the present application, if the expected voltage notified by the first subsystem is greater than the current system voltage, then it can be determined that the first subsystem needs a higher voltage when performing a task, so it is necessary to boost the voltage The adjustment process can further determine that the voltage adjustment condition is satisfied. For example, if the expected voltage notified by the first subsystem is 0.8V and the current system voltage is 0.6V, it can be determined that the voltage adjustment condition is met.

That is to say, in the embodiment of the present application, when the acquired expected voltage of any subsystem is greater than the current system voltage, it may be determined that voltage adjustment processing is required.

Further, in the embodiment of the present application, the method for the DVFS management system in the baseband chip of the terminal device to judge whether the voltage adjustment condition is met according to the expected voltage and the current system voltage may also include the following steps:

Step 202, if the expected voltage is equal to the current system voltage, the DVFS management system determines that the voltage adjustment condition is not satisfied.

In the embodiment of this application, after the DVFS management system acquires the expected voltage of the first subsystem in the next adjustment cycle, it can compare the expected voltage with the current system voltage, and if the comparison result is that the expected voltage is equal to the current system voltage , then the DVFS management system can determine that the voltage adjustment condition is not met, and thus does not need to execute the voltage adjustment processing flow.

It can be understood that, in the embodiment of the present application, if the expected voltage notified by the first subsystem is equal to the current system voltage, then it can be determined that the current system voltage can meet the voltage required by the first subsystem when performing tasks, and therefore no It is necessary to perform voltage adjustment processing, and it can be determined that the voltage adjustment condition is not satisfied. For example, if the expected voltage notified by the first subsystem is 0.6V and the current system voltage is 0.6V, it can be determined that the voltage adjustment condition is not met.

That is to say, in the embodiment of the present application, when the obtained expected voltage of any subsystem is equal to the current system voltage, it can be determined that voltage adjustment processing is not required.

Further, in the embodiment of the present application, the method for the DVFS management system in the baseband chip of the terminal device to determine whether the voltage adjustment condition is satisfied according to the expected voltage and the current system voltage may further include the following steps:

Step 203, if the expected voltage is lower than the current system voltage, the DVFS management system updates the expected voltage list according to the expected voltage, and judges whether the voltage adjustment condition is satisfied based on the expected voltage list and the current system voltage.

In the embodiment of this application, after the DVFS management system obtains the expected voltage of the first subsystem in the next adjustment period, it can compare the expected voltage with the current system voltage, and if the comparison result is that the expected voltage is less than the current system voltage , then the DVFS management system can first update the expected voltage list according to the expected voltage, and then further judge whether the voltage adjustment condition is satisfied based on the expected voltage list and the current system voltage.

It can be understood that, in the embodiment of the present application, if the expected voltage notified by the first subsystem is lower than the current system voltage, it can be considered that it is necessary to adjust the voltage reduction. However, the DVFS management system also needs to consider the first subsystem Therefore, the DVFS management system needs to update the expected voltage list according to the expected voltage first, and then judge whether the voltage adjustment condition is met based on the expected voltage list and the current system voltage. For example, the expected voltage notified by the first subsystem is 0.6V, and the current system voltage is 0.7V. At this time, the DVFS management system cannot directly judge whether the voltage adjustment condition is met according to the expected voltage, but needs to use the expected voltage to update the expected voltage. Voltage list, and then combined with the expected voltage list and the current system voltage to determine whether the voltage adjustment conditions are met.

That is to say, in the embodiment of this application, when the obtained expected voltage of any subsystem is lower than the current system voltage, the DVFS management system cannot directly determine whether to perform voltage adjustment processing, but first performs the expected voltage list In the update process, the updated expected voltage list is used for further judgment process.

It should be noted that, in the embodiment of the present application, the expected voltage list is used to perform real-time statistics on the expected voltages of all subsystems. Specifically, the expected voltage list records the expected voltage of each subsystem in the baseband chip in the next adjustment cycle, after any subsystem in all subsystems notifies the DVFS management system of the expected voltage, the DVFS management system can The desired voltage list is updated with the latest obtained desired voltage for this subsystem. For example, Table 2 is the expected voltage list 1, and Table 3 is the expected voltage list 2, wherein, at time t1, the DVFS management system obtains the expected voltages of subsystem 1, subsystem 2, and subsystem 3 in the next adjustment cycle as 0.6V, 0.7V, 0.8V, and then update the expected voltage list as shown in Table 2. At time t2 (t2>t1), the DVFS management system reacquires the expected voltage of subsystem 1 and subsystem 3 in the next adjustment period are 0.5V and 0.7V respectively, and the expected voltage list can be updated as shown in Table 3.

Table 2

the	电压(V)Voltage (V)
子系统1Subsystem 1	0.60.6
子系统2 Subsystem 2	0.70.7

Subsystem 3

0.8

table 3

the	电压(V)Voltage (V)
子系统1Subsystem 1	0.50.5
子系统2 Subsystem 2	0.70.7
子系统3Subsystem 3	0.70.7

Further, in the embodiment of the present application, when judging whether the voltage adjustment condition is met based on the expected voltage list and the current system voltage, the DVFS management system can first determine the maximum voltage in the expected voltage list, and then compare the maximum voltage with the current system voltage The voltages are compared to obtain a comparison result, and then it can be determined whether the voltage adjustment condition is satisfied according to the comparison result.

It can be understood that, in the embodiment of the present application, after the DVFS management system compares the maximum voltage in the expected voltage list with the current system voltage, if the comparison result shows that the maximum voltage in the expected voltage list is equal to the current system voltage, it can be considered The maximum voltage among the voltages required by all subsystems cannot be lower than the current system voltage, so it can be determined that the voltage adjustment condition is not met, that is, the DVFS management system can determine that the voltage adjustment condition is not met.

It can be understood that, in the embodiment of the present application, after the DVFS management system compares the maximum voltage in the expected voltage list with the current system voltage, if the comparison result shows that the maximum voltage in the expected voltage list is less than the current system voltage, it can be considered The voltage required by all subsystems is lower than the current system voltage, so it can be determined that the voltage adjustment condition is met, that is, the DVFS management system can determine that the voltage adjustment condition is met.

Further, in the embodiment of the present application, when the DVFS management system determines the target voltage, if the expected voltage is lower than the current system voltage, it needs to adjust the voltage to be lowered. Correspondingly, the DVFS management system can determine the maximum voltage as target voltage. An embodiment of the present application provides a voltage adjustment method. The voltage adjustment method is applied to a terminal device. The terminal device is configured with a baseband chip and a power management module. The baseband chip includes at least one subsystem and a DVFS management system, wherein each subsystem uses a It is used to calculate the expected voltage in the next adjustment cycle; the DVFS management system is used to send a voltage adjustment request to the power management module; wherein, the voltage adjustment request is used to indicate the target voltage output by the power management module to the baseband chip in the next adjustment cycle, and the target The voltage is not less than the expected voltage of each subsystem in the next regulation cycle. That is to say, in the embodiment of this application, the DVFS management system configured in the baseband chip of the terminal device can respond to the voltage adjustment requirements of the subsystem in a timely manner by obtaining the expected voltage of the subsystem, shortening the perceived decision-making of voltage adjustment. At the same time, the transmission time and adjustment time of voltage adjustment can be further shortened by using high-speed data interface and fast-response power management module, which can effectively shorten the processing time of voltage adjustment, thereby reducing system power consumption and realizing voltage adjustment Fine control of processing.

Based on the above-mentioned embodiments, another embodiment of the present application proposes a voltage adjustment method. The voltage adjustment method is applied to a terminal device. The terminal device may include a power management module, a radio frequency module, and a baseband chip. RF module and baseband chip power supply.

In the embodiment of the present application, FIG. 8 is a schematic diagram of the composition and structure of the terminal device. As shown in FIG. 8, the terminal device may include a power management module, a radio frequency module, and a baseband chip, and the power management module may supply power to the radio frequency module and the baseband chip respectively. . Wherein, the baseband chip can include at least one subsystem, and at least one subsystem can work in the same voltage domain; the baseband chip can also include a DVFS management system, and the DVFS management system can be used for voltage adjustment processing.

Further, in the embodiment of the present application, the baseband chip in the terminal device may include at least one subsystem and a DVFS management system. Wherein, at least one subsystem can work in the same voltage domain; the DVFS management system can be used for voltage adjustment processing.

FIG. 9 is a schematic diagram of a baseband chip. As shown in FIG. 9 , the baseband chip includes n subsystems (n is greater than or equal to 1) in the same voltage domain, and a DVFS management system. Specifically, the DVFS management system includes a sensing unit, a decision-making unit, a voltage regulation control unit, and a high-speed data interface.

It should be noted that, in the embodiment of this application, under the same voltage domain, each subsystem can decompose and confirm the respective subtasks and their corresponding frequency requirements after a period of time in the future according to their current working status and tasks, and then can determine The corresponding voltage requirements can be determined, and finally the expected voltage value after a period of time can be voted out, that is, the expected voltage. For example, Table 4 shows the different expected voltages predicted by a subsystem when performing different subtasks. Specifically, after the subsystem receives a task packet, it can decompose 7 subtasks. For each subtask, the subtask The system can predict the frequency required to execute subtasks, so as to determine the expected voltage in the next adjustment period, as shown in Table 4.

Furthermore, in the embodiment of the present application, before a certain subtask starts, the subsystem will notify the sensing and decision-making unit of the expected voltage in the next adjustment period by voting to apply for the expected voltage it needs. After a subtask ends and before the next subtask starts, the subsystem can choose to enter a pre-defined low-power mode. At this time, the perception and decision-making unit can be notified to apply for the expected voltage of the low-power mode in the next adjustment cycle. .

Table 4

the	电压(V)Voltage (V)
子任务1Subtask 1	0.60.6
子任务2Subtask 2	0.70.7
子任务3Subtask 3	0.80.8
子任务4Subtask 4	0.70.7
子任务5Subtask 5	0.50.5
子任务6Subtask 6	0.70.7
子任务7Subtask 7	0.50.5

Further, in the embodiment of the present application, the sensing unit is responsible for collecting the expected voltage of each subsystem voted in a certain voltage domain (current system voltage), so that the decision-making unit can judge whether to perform voltage adjustment according to the obtained expected voltage of the subsystem processing, and determine the corresponding target voltage after the voltage adjustment processing is determined.

That is to say, in the embodiment of this application, when the expected voltage required by one or more subsystems changes, the subsystems can notify the sensing unit in the DVFS management system by voting. After the expected voltage, the expected voltage can be transmitted to the decision-making unit, and then the decision-making unit can judge whether to adjust the voltage according to the expected voltage.

Further, in the embodiment of the present application, FIG. 10 is a schematic diagram of the third implementation flow of the voltage adjustment method. As shown in FIG. 10 , the method for terminal equipment to perform voltage adjustment may further include the following steps:

Step 301. Obtain the expected voltage of the first subsystem.

In the embodiment of the present application, the sensing unit in the DVFS management system can obtain the expected voltage of the first subsystem in the next adjustment cycle. Wherein, the first subsystem may be any subsystem in at least one subsystem in the baseband chip. Specifically, whenever the expected voltage of any one of the at least one subsystem is updated in the next adjustment period, the DVFS management system may be notified of the expected voltage by voting.

Step 302 , judging whether the expected voltage is the same as the current system voltage, if yes, go to step 303 , otherwise go to step 304 .

Step 303, do not execute the voltage adjustment process.

In the embodiment of the present application, after obtaining the expected voltage of the first subsystem in the next adjustment cycle, the DVFS management system can determine whether the voltage adjustment condition is satisfied according to the expected voltage and the current system voltage. Specifically, the decision-making unit in the DVFS management system may first determine whether the expected voltage is the same as the current system voltage, and if they are the same, it may determine that voltage adjustment processing is not required.

Step 304 , judging whether the expected voltage is greater than the current system voltage, if yes, go to step 305 , otherwise go to step 306 .

In the embodiment of this application, after the DVFS management system compares the expected voltage of the first subsystem in the next adjustment period with the current system voltage, if the comparison result shows that the expected voltage is greater than the current system voltage, it can be considered that the voltage needs to be raised The DVFS management system can determine that the voltage adjustment condition is satisfied.

Step 305 , perform adjustment processing of boosted voltage.

Step 306, updating the expected voltage list according to the expected voltage.

In the embodiment of this application, after the DVFS management system compares the expected voltage of the first subsystem in the next adjustment period with the current system voltage, if the comparison result shows that the expected voltage is less than the current system voltage, it can be considered that the voltage needs to be reduced However, the DVFS management system also needs to consider the voltage adjustment requirements of other subsystems other than the first subsystem, so the DVFS management system also needs to update the expected voltage list according to the expected voltage, and then further based on the expected voltage list and the current system voltage Determine whether the voltage adjustment condition is met.

It should be noted that, in the embodiment of the present application, the expected voltage list is used to perform real-time statistics on the expected voltages of all subsystems. Specifically, the expected voltage list records the expected voltage of each subsystem in the baseband chip in the next adjustment cycle, after any subsystem in all subsystems notifies the DVFS management system of the expected voltage, the DVFS management system can The desired voltage list is updated with the latest obtained desired voltage for this subsystem.

Step 307 , whether the maximum voltage in the expected voltage list is smaller than the current system voltage, if yes, go to step 308 , otherwise go to step 303 .

Step 308 , perform an adjustment process of lowering the voltage.

In the embodiment of this application, after the DVFS management system updates the expected voltage list according to the expected voltage, the DVFS management system can determine whether the voltage adjustment condition is satisfied based on the expected voltage list and the current system voltage. voltage, and then compare the maximum voltage with the current system voltage. If the comparison result shows that the maximum voltage in the expected voltage list is equal to the current system voltage, it can be considered that the maximum voltage among the voltages required by all subsystems cannot be lower than the current system voltage. Therefore, it can be determined that the voltage adjustment condition is not met, that is, the DVFS management system can determine that the voltage adjustment condition is not met; if the comparison result shows that the maximum voltage in the expected voltage list is less than the current system voltage, it can be considered that the voltage required by all subsystems is lower than the current system voltage Therefore, it can be determined that the voltage adjustment condition is met, that is, the DVFS management system can determine that the voltage adjustment condition is met.

It can be seen that, in the embodiment of the present application, the voltage adjustment condition may include an adjustment condition for increasing the voltage and an adjustment condition for decreasing the voltage. Specifically, when judging whether the voltage adjustment condition is satisfied, if the expected voltage of a subsystem is greater than the current system voltage, then it can be directly determined that the adjustment condition for boosting the voltage is met; however, if the expected voltage of a subsystem is lower than the current system voltage, this It is not possible to directly determine that the adjustment condition for reducing the voltage is satisfied, but it is necessary to consider the voltage adjustment requirements of other subsystems based on the expected voltage list, and then further determine whether the adjustment process for reducing the voltage can be performed.

It can be understood that, in the embodiment of the present application, when the DVFS management system judges whether the adjustment condition for reducing the voltage is satisfied, it mainly depends on the magnitude relationship between the maximum voltage in the updated expected voltage list and the current system voltage. For example, Table 5 is the expected voltage list before updating, Table 6 is the updated expected voltage list 1, and Table 7 is the updated expected voltage list 2.

table 5

the	电压(V)Voltage (V)
子系统1Subsystem 1	0.60.6

子系统2 Subsystem 2	0.70.7
子系统3Subsystem 3	0.80.8
子系统4Subsystem 4	0.70.7

Assuming that the current system voltage is 0.8V, based on Table 6, if the expected voltage required by subsystem 3 is updated from 0.8V to 0.7V, at this time, the maximum voltage in the updated expected voltage list is 0.7V, it can be seen that the maximum voltage is less than the current The system voltage is 0.8V, so it can be determined that the voltage adjustment condition is satisfied, and the adjustment process of reducing the voltage can be performed, and the voltage reduction range is 0.1V.

Table 6

the	电压(V)Voltage (V)
子系统1Subsystem 1	0.60.6
子系统2 Subsystem 2	0.70.7
子系统3Subsystem 3	0.70.7
子系统4Subsystem 4	0.70.7

Assuming that the current system voltage is 0.8V, based on Table 7, if the expected voltage required by subsystem 4 is updated from 0.7V to 0.6V, at this time, the maximum voltage in the updated expected voltage list is still 0.8V, it can be seen that the maximum voltage is equal to The current system voltage is 0.8V, so it can be determined that the voltage adjustment condition is not met, and the adjustment process of reducing the voltage cannot be performed.

Table 7

the	电压(V)Voltage (V)
子系统1Subsystem 1	0.60.6
子系统2 Subsystem 2	0.70.7
子系统3Subsystem 3	0.80.8
子系统4Subsystem 4	0.60.6

Further, in the embodiment of the present application, FIG. 11 is a schematic diagram of the fourth implementation flow of the voltage adjustment method. As shown in FIG. 11 , the method for terminal equipment to perform voltage adjustment may further include the following steps:

Step 301. Obtain the expected voltage of the first subsystem.

Step 306, updating the expected voltage list according to the expected voltage.

Step 309, determine the maximum voltage in the expected voltage list.

Step 310 , judging whether the maximum voltage is equal to the current system voltage, if yes, go to step 303 , otherwise go to step 311 .

Step 303, do not execute the voltage adjustment process.

Step 311. Determine the maximum voltage as the target voltage.

Step 312, perform voltage adjustment processing according to the target voltage.

In the embodiment of this application, after obtaining the expected voltage of the first subsystem in the next adjustment cycle, the DVFS management system can first update the expected voltage list according to the expected voltage, and then determine the updated expected voltage The maximum voltage in the list, where the maximum voltage can be determined for the maximum value of all expected voltages required by all subsystems.

Further, in the embodiment of the present application, the DVFS management system can compare the maximum voltage in the expected voltage list with the current system voltage to obtain a comparison result, and then determine whether the voltage adjustment condition is satisfied according to the comparison result.

It can be understood that, in the embodiment of the present application, after the DVFS management system compares the maximum voltage in the expected voltage list with the current system voltage, if the comparison result shows that the maximum voltage in the expected voltage list is less than the current system voltage, it can be considered The required voltages of all subsystems are lower than the current system voltage, so it can be determined that the voltage adjustment condition is met, and the adjustment process of boosting the voltage is required, and then the maximum voltage can be determined as the target voltage for the voltage adjustment process.

It can be understood that, in the embodiment of this application, after the DVFS management system compares the maximum voltage in the expected voltage list with the current system voltage, if the comparison result shows that the maximum voltage in the expected voltage list is greater than the current system voltage, it can be considered The maximum voltage among the voltages required by all the subsystems is higher than the current system voltage, so it can be determined that the voltage adjustment condition is met, and the adjustment process of reducing the voltage is required, and then the maximum voltage can be determined as the target voltage for the voltage adjustment process.

It can be seen that, in the embodiment of the present application, the voltage adjustment condition may include an adjustment condition for increasing the voltage and an adjustment condition for decreasing the voltage. Specifically, when judging whether the voltage adjustment condition is satisfied, the expected voltage list can also be updated based on the expected voltage of the subsystem first, and then the maximum voltage in the expected voltage list can be determined. Comparison to judge that the adjustment condition for boosting the voltage is satisfied.

It can be understood that, in the embodiment of the present application, when the DVFS management system judges whether the adjustment condition for raising or lowering the voltage is satisfied, it mainly depends on the difference between the maximum voltage in the updated expected voltage list and the current system voltage. size relationship. For example, based on the above Table 5, Table 8 is the updated expected voltage list three.

Table 8

the	电压(V)Voltage (V)
子系统1Subsystem 1	0.80.8
子系统2 Subsystem 2	0.70.7
子系统3Subsystem 3	0.70.7
子系统4Subsystem 4	0.70.7

Assuming that the current system voltage is 0.8V, based on Table 8, if the expected voltage required by subsystem 1 is updated from 0.6V to 0.9V, and at the same time, the expected voltage required by subsystem 3 is updated from 0.8V to 0.7V, at this time, after the update The maximum voltage in the expected voltage list is 0.9V. It can be seen that the maximum voltage is 0.8V greater than the current system voltage, so it can be determined that the voltage adjustment condition is met, and the adjustment process of boosting the voltage can be performed, and the boosting range is 0.1V.

Further, in the embodiment of the present application, after the decision-making unit in the DVFS management system decides that it needs to perform the adjustment process of boosting or bucking, and immediately calculates the target voltage, it can send the target voltage to the voltage regulation control unit, the voltage regulation control unit packs the target voltage according to the agreed format (preset compression format), generates a voltage adjustment request, and sends the voltage adjustment request to the high-speed data interface, and the high-speed data interface can follow the system power management interface (System Power Management Interface, SPMI) and other physical interface formats (preset interface formats), and then send it to the power management module.

Further, in the embodiment of the present application, after the power management module receives a voltage adjustment request from the high-speed communication interface, it can analyze the voltage adjustment request to obtain a target voltage, and then perform voltage adjustment processing according to the target voltage.

It should be noted that, in the embodiment of the present application, FIG. 12 is a schematic diagram of a power management module. As shown in FIG. Wait a few sections. Wherein, the high-speed communication interface 21 can be used to receive the voltage adjustment request; the control register 22 can be used to control the DCDC circuit to output the target voltage based on the voltage value of the target voltage indicated by the voltage adjustment request.

It can be understood that, in the embodiment of the present application, after receiving the voltage adjustment request, the high-speed communication interface in the power management module can interpret the conversion to obtain the DCDC target voltage, and adjust the control register to further control the DCDC output. Specifically, DCDC can adjust the voltage at a typical rate of 20mV/us. At this time, if it adjusts 100mv, it will take 5us.

To sum up, the voltage adjustment method proposed in the embodiment of the present application can obtain the voltage demand of the subsystem in time through the voting method of the subsystem, which greatly shortens the perception time and decision time in the process of performing the voltage adjustment process.

It can be understood that, in the embodiment of the present application, FIG. 13 is a schematic diagram of the voltage adjustment process. As shown in FIG. 13, taking the boosted voltage into the adjustment process as an example, during the entire voltage adjustment process from V1 to V2 , can mainly include the sensing decision stage, transmission stage, interpretation stage and voltage climbing stage, wherein, the sensing decision time corresponding to the sensing decision stage is T1, the transmission time corresponding to the transmission stage is T2, and the interpretation time corresponding to the interpretation stage is T3, the voltage ramp-up time corresponding to the voltage ramp-up phase is T4. Based on the voltage adjustment method proposed in the embodiment of this application, since the process of sensing decision-making is mainly realized by hardware, and the calculation amount of the software part is small, it can be completed in about 1us, that is, T1=1us; in the transmission stage, it is assumed that a 26Mbps For SPMI transmission, the overall length of the message including the address is 32bit, and the transmission time is 1.23us, that is, T2=1.23us; in the interpretation stage, the special message management module of the power management module interprets the message and directly controls the relevant power registers, which takes 1us, that is, T3=1us; in the voltage ramp-up phase, the power management module controls the DCDC voltage ramp-up, assuming that the voltage ramp-up rate is 20mv/us, △V=V2-V1=100mv, it takes 5us, that is, T4=5us.

It should be noted that, in the embodiment of this application, the link delay is mainly composed of the transmission time T2 of the high-speed communication interface, the message interpretation time T3 of the power management module, and the voltage ramp-up time T4 of the DCDC power supply, wherein T4 can be composed of The voltage climbing rate R (for example, R=20mv/us) is determined by the adjusted voltage difference ΔV (mv), that is, T4=ΔV/R. The entire link delay T _delay =T2+T3+T4.

It can be seen that the perception decision-making time takes T1=1us, the transmission time T2=1.23us, the power management module interpretation time T3=1us, and the voltage climbing time T4=5us, so the total time consumption is 8.23us. Among them, the perception decision-making After completion, it is necessary to wait for the voltage of T _delay =7.23us to adjust to the target voltage.

It can be understood that, in the embodiment of the present application, if the voltage adjustment is the adjustment process of boosting the voltage, then during this T _delay , the subsystem must wait until the DVFS management system perceives that the process of boosting the voltage is completed and Notify the subsystem that the voltage adjustment has been completed, and the subsystem can start the work after the frequency increase; if the voltage adjustment is the adjustment process of reducing the voltage, then the subsystem can directly reduce the frequency and then send a voltage reduction request without waiting. And after the entire system meets the depressurization conditions, there is no need to wait, and the depressurization can be directly performed.

An embodiment of the present application provides a voltage adjustment method. The voltage adjustment method is applied to a terminal device. The terminal device is configured with a baseband chip and a power management module. The baseband chip includes at least one subsystem and a DVFS management system, wherein each subsystem uses a It is used to calculate the expected voltage in the next adjustment cycle; the DVFS management system is used to send a voltage adjustment request to the power management module; wherein, the voltage adjustment request is used to indicate the target voltage output by the power management module to the baseband chip in the next adjustment cycle, and the target The voltage is not less than the expected voltage of each subsystem in the next regulation cycle. That is to say, in the embodiment of this application, the DVFS management system configured in the baseband chip of the terminal device can respond to the voltage adjustment requirements of the subsystem in a timely manner by obtaining the expected voltage of the subsystem, shortening the perceived decision-making of voltage adjustment. At the same time, the transmission time and adjustment time of voltage adjustment can be further shortened by using high-speed data interface and fast-response power management module, which can effectively shorten the processing time of voltage adjustment, thereby reducing system power consumption and realizing voltage adjustment Fine control of processing.

Those skilled in the art should understand that the embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, optical storage, etc.) having computer-usable program code embodied therein.

The present application is described with reference to the implementation flow diagrams and/or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and/or block in the schematic flowchart and/or block diagram, and a combination of processes and/or blocks in the schematic flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a Means for realizing the functions specified in one or more steps of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in implementing one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in implementing the process flow or processes of the flowchart diagrams and/or the block or blocks of the block diagrams.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the protection scope of the present application.

Industrial Applicability

Claims

A baseband chip, the baseband chip includes at least one subsystem and a DVFS management system, wherein,

Each subsystem is used to calculate the expected voltage in the next adjustment period;

The DVFS management system is configured to send a voltage adjustment request to the power management module; wherein the voltage adjustment request is used to indicate a target voltage output by the power management module to the baseband chip in the next adjustment period, and the target voltage Not less than the expected voltage of each subsystem in the next trim cycle.
The baseband chip according to claim 1, wherein,

The DVFS management system is specifically configured to acquire the expected voltage of each subsystem in the next adjustment period; and determine the target voltage according to the expected voltage of each subsystem in the next adjustment period.
The baseband chip according to claim 2, wherein the DVFS management system includes a perception unit and a decision unit, wherein,

The sensing unit is configured to acquire the expected voltage of each subsystem in the next adjustment cycle;

The decision-making unit is configured to determine the target voltage according to the expected voltage of each subsystem in the next adjustment period.
The baseband chip according to claim 1, wherein the DVFS management system includes a voltage regulation control unit and a high-speed data interface, wherein,

The voltage regulation control unit is configured to generate the voltage regulation request according to the voltage value of the target voltage;

The high-speed data interface is used to send the voltage adjustment request to the power management module.
The baseband chip according to claim 1, wherein,

The DVFS management system is further configured to judge whether the voltage adjustment condition is satisfied according to the expected voltage of each subsystem in the next adjustment period and the current system voltage.
The baseband chip according to claim 5, wherein,

The DVFS management system is specifically configured to determine that a subsystem meets a voltage adjustment condition if the expected voltage of a subsystem in the next adjustment period is greater than the current system voltage.
The baseband chip according to claim 5, wherein,

The DVFS management system is specifically configured to judge whether the expected voltage of a subsystem in the next adjustment period is lower than the current system voltage according to the expected voltage of other subsystems in the next adjustment period and the current system voltage. voltage regulation conditions.
The baseband chip according to claim 7, wherein,

The DVFS management system is specifically configured to determine that the one subsystem satisfies the voltage adjustment condition if the maximum voltage among the expected voltages of other subsystems in the next adjustment cycle is smaller than the current system voltage.
The baseband chip according to claim 6, wherein,

The DVFS management system is specifically configured to determine the expected voltage as the target voltage.
The baseband chip according to claim 8, wherein,

The DVFS management system is specifically configured to determine the maximum voltage as the target voltage.
The baseband chip according to claim 4, wherein,

The voltage regulation control unit is specifically configured to package the target voltage according to a preset compression format, and generate the voltage adjustment request;

The high-speed data interface is specifically used to send the voltage adjustment request to the power management module according to a preset interface format.
The baseband chip according to claim 1, wherein,

Each of the subsystems is specifically used to decompose the current task, determine the subtask corresponding to the current task, and determine the expected voltage in the next adjustment period according to the subtask.
A voltage adjustment method, the voltage adjustment method is applied to a terminal device, the terminal device is configured with a baseband chip and a power management module, the power management module is used to supply power to the baseband chip, and the baseband chip includes at least one System and DVFS management system, the method includes:

Each subsystem calculates the expected voltage during the next adjustment period;

The DVFS management system sends a voltage adjustment request to the power management module; wherein, the voltage adjustment request is used to indicate the target voltage that the power management module outputs to the baseband chip in the next adjustment cycle, and the target voltage is not less than the expected voltage of each subsystem during the next trim cycle.
The method of claim 13, wherein,

The DVFS management system obtains the expected voltage of each subsystem in the next adjustment period; and determines the target voltage according to the expected voltage of each subsystem in the next adjustment period.
The method according to claim 14, wherein the DVFS management system includes a perception unit and a decision unit, wherein,

The sensing unit acquires the expected voltage of each subsystem in the next adjustment period;

The decision-making unit determines the target voltage according to the expected voltage of each subsystem in the next adjustment period.
The method according to claim 13, wherein the DVFS management system includes a voltage regulation control unit and a high-speed data interface, and the DVFS management system sends a voltage adjustment request to the power management module, including:

The voltage regulation control unit generates the voltage regulation request according to the voltage value of the target voltage;

The high-speed data interface sends the voltage adjustment request to the power management module.
The method according to claim 14, wherein said method further comprises:

The DVFS management system judges whether the voltage adjustment condition is satisfied according to the expected voltage of each subsystem in the next adjustment period and the current system voltage.
The method of claim 17, wherein,

If the expected voltage of a subsystem in the next adjustment period is greater than the current system voltage, the DVFS management system determines that the one subsystem satisfies the voltage adjustment condition.
The method of claim 17, wherein,

If the expected voltage of a subsystem in the next adjustment period is lower than the current system voltage, the DVFS management system judges whether the voltage adjustment condition is satisfied according to the expected voltage of other subsystems in the next adjustment period and the current system voltage.
The method of claim 19, wherein,

If the maximum voltage among the expected voltages of other subsystems in the next adjustment cycle is smaller than the current system voltage, the DVFS management system determines that the one subsystem meets the voltage adjustment condition.
The method according to claim 18, wherein the DVFS management system determines the target voltage according to the expected voltage of each subsystem in the next adjustment period, comprising:

The DVFS management system determines the desired voltage as the target voltage.
The method according to claim 19, wherein the DVFS management system determines the target voltage according to the expected voltage of each subsystem in the next adjustment period, comprising:

The DVFS management system determines the maximum voltage as the target voltage.
The method according to claim 16, wherein the voltage adjustment control unit generates the voltage adjustment request according to the voltage value of the target voltage, comprising:

The voltage adjustment control unit packs the target voltage according to a preset compression format to generate the voltage adjustment request.
The method according to claim 16, wherein the high-speed data interface sending the voltage adjustment request to the power management module comprises:

The high-speed data interface sends the voltage adjustment request to the power management module according to a preset interface format.
The method of claim 13, wherein said each subsystem calculating a desired voltage during a next adjustment cycle comprises:

Each of the subsystems decomposes the current task, and determines the subtasks corresponding to the current task; and determines the expected voltage in the next adjustment period according to the subtasks.
A terminal device, comprising: a power management module and the baseband chip according to claims 1 to 12, the power management module is used to supply power to the baseband chip.
The terminal device according to claim 26, wherein the power management module includes a high-speed communication interface, a control register, and a DC/DC circuit;

The high-speed communication interface is used to receive the voltage adjustment request;

The control register is configured to control the DCDC circuit to output the target voltage based on the voltage value of the target voltage indicated by the voltage adjustment request.