WO2023151414A1

WO2023151414A1 - Baseband chip, task scheduling method, and terminal device

Info

Publication number: WO2023151414A1
Application number: PCT/CN2022/143467
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: CN114546096B; CN114546096A

Abstract

Disclosed in embodiments of the present application are a baseband chip, a task scheduling method, and a terminal device. The baseband chip comprises a plurality of subsystems and a DVFS management system, wherein the DVFS management system is used for respectively issuing one or more subtasks to one or more first subsystems in the plurality of subsystems, wherein the first subsystem is a subsystem for executing the subtask; each first subsystem is used for sending an expected voltage in the next adjustment period to the DVFS management system according to the received subtask; and the DVFS management system is also used for adjusting the execution sequence of the one or more subtasks according to the expected voltage of each first subsystem in the next adjustment period, and configuring a power supply voltage received in the next adjustment period according to the adjusted execution sequence of the one or more subtasks and the expected voltage corresponding to each first subsystem.

Description

Baseband chip, task scheduling method and terminal equipment

Cross References to Related Applications

This application claims the priority of the Chinese patent application with the application number 202210125458.4 and the application name "Baseband Chip, Task Scheduling Method and Terminal Equipment" filed on February 10, 2022. The entire content of the Chinese patent application is incorporated by reference in In this application.

technical field

The present application relates to the field of chip design, in particular to a baseband chip, a task scheduling method and a terminal device.

Background technique

Dynamic Voltage and Frequency Scaling (DVFS) is a technology for dynamically adjusting voltage and frequency, which can adjust frequency and voltage according to the system load. For example, when the workload increases, the frequency is increased, and when the workload decreases, the frequency is reduced.

However, the current common DVFS technology is limited by the fact that multiple systems share the power supply, and cannot accurately schedule tasks and control voltages, which in turn leads to the defect of high power consumption of the system.

Contents of the invention

Embodiments of the present application provide a baseband chip, a task scheduling method, and a terminal device, which can accurately schedule tasks and control voltages, thereby effectively reducing system power consumption.

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 multiple subsystems and a DVFS management system, wherein,

The DVFS management system is configured to issue one or more subtasks to one or more first subsystems among the plurality of subsystems; wherein, the first subsystem is a subtask that executes the subtasks system;

Each first subsystem is configured to send the expected voltage in the next adjustment period to the DVFS management system according to the received subtask;

The DVFS management system is further configured to adjust the execution order of the one or more subtasks according to the expected voltage of each first subsystem in the next adjustment cycle, and according to the adjusted execution order of the one or more subtasks The execution sequence and the expected voltage corresponding to each of the first subsystems configure the supply voltage received in the next adjustment period.

In the second aspect, an embodiment of the present application provides a task scheduling method, the task scheduling method is applied to a terminal device, the terminal device is configured with a baseband chip, and the baseband chip includes multiple subsystems and a DVFS management system, the method include:

The DVFS management system sends one or more subtasks to one or more first subsystems among the plurality of subsystems respectively; wherein, the first subsystem is a subsystem that executes the subtasks;

Each first subsystem sends the expected voltage in the next adjustment period to the DVFS management system according to the received subtask;

The DVFS management system adjusts the execution order of the one or more subtasks according to the expected voltage of each first subsystem in the next adjustment period, and according to the adjusted execution order and The expected voltage corresponding to each first subsystem configures the supply voltage received in the next adjustment 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 task scheduling method, and a terminal device. The baseband chip includes multiple subsystems and a DVFS management system, wherein the DVFS management system is used to deliver one or more subtasks to multiple subsystems respectively. One or more first subsystems; wherein, the first subsystem is a subsystem that executes subtasks; each first subsystem is configured to send the DVFS management system the next adjustment period according to the received subtask the expected voltage; the DVFS management system is also used to adjust the execution order of one or more subtasks according to the expected voltage of each first subsystem in the next adjustment cycle, and according to the adjusted execution order of one or more subtasks and The expected voltage corresponding to each first subsystem configures the supply voltage received in the next adjustment cycle. That is to say, in the embodiment of the present application, the DVFS management system configured by the baseband chip of the terminal device can obtain the expected voltage of the subsystem in the next adjustment period, and determine the maximum value of the subtask corresponding to the subsystem based on the expected voltage. Optimal execution sequence, and then control the subsystem to process subtasks according to the execution sequence, and complete voltage adjustment at the same time, so that task scheduling and voltage control can be accurately performed, and the power consumption of the system can be effectively reduced.

Description of drawings

Figure 1 is a schematic diagram of the implementation framework of the DVFS solution;

FIG. 2 is a schematic diagram of a DVFS scheme;

FIG. 3 is a schematic diagram 1 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 1 of task sequence combination;

Fig. 6 is a schematic diagram 1 of the corresponding relationship between the expected voltage and the duration;

7 is a schematic diagram of a power management module;

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

FIG. 9 is a first schematic diagram of the implementation flow of the task scheduling method;

FIG. 10 is a second schematic diagram of the composition and structure of the baseband chip;

FIG. 11 is a second schematic diagram of the implementation flow of the task scheduling method;

Fig. 12 is a schematic diagram 2 of task order combination;

FIG. 13 is a second schematic diagram of the corresponding relationship between the expected voltage and the duration;

FIG. 14 is a third schematic diagram of the corresponding relationship between the expected voltage and the duration.

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.

Figure 1 is a schematic diagram of the implementation framework of the DVFS solution. As shown in Figure 1, 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.

However, when multiple systems share one power supply, it often results in waste of power supply. Figure 2 is a schematic diagram of the DVFS scheme. As shown in Figure 2, if subsystem 1, subsystem 2, and subsystem 3 share one power supply, when subsystem 2 needs to work at a higher voltage V1, even system 1 and subsystem 3. The required operating voltage is only the disclosed voltage V2 (V1 is greater than V2), and because of the need to consider the needs of the subsystem 2, it has to work at a voltage higher than its own demand, resulting in energy waste.

It can be seen that the current common DVFS technology is limited by the fact that multiple systems share the power supply, and cannot accurately schedule tasks and control voltages, which in turn leads to the defect of high power consumption of the system.

In order to solve the above problems, in the embodiment of this application, the DVFS management system configured by the baseband chip of the terminal device can obtain the expected voltage of the subsystem in the next adjustment period, and determine the corresponding subtask of the subsystem based on the expected voltage. The optimal execution sequence can then control the subsystem to process subtasks according to the execution sequence, and at the same time complete the voltage adjustment, so that the task scheduling and voltage control can be accurately performed, and the power consumption of the system can be effectively reduced.

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, and the baseband chip includes multiple subsystems and a DVFS management system.

In the embodiment of the present application, FIG. 3 is a schematic diagram of the composition and structure of a baseband chip. As shown in FIG. 3 , the baseband chip 10 may include multiple subsystems 11, wherein the multiple subsystems 11 can all work in the same voltage domain Next; the baseband chip 10 may also include a DVFS management system 12, and the DVFS management system 12 may be used to perform task scheduling processing and voltage adjustment processing.

It should be noted that, in the embodiment of the present application, the terminal device may further include a power management module, and 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 multiple subsystems included in the baseband chip configured in the terminal device can communicate with the DVFS management system respectively.

Further, in the embodiment of the present application, the DVFS management system can be used to send one or more subtasks to one or more first subsystems among the plurality of subsystems respectively; wherein, the first subsystem is the execution subsystem Subsystem for tasks.

Correspondingly, in the embodiment of the present application, each first subsystem may be configured to send the expected voltage in the next adjustment period to the DVFS management system according to the received subtask.

It should be noted that, in the embodiment of the present application, FIG. 4 is a schematic diagram of the composition and structure of the DVFS management system. As shown in FIG. 4 , the DVFS management system 12 may include a task management unit 121 . Specifically, the task management unit can be used to disassemble one or more received tasks into one or more subtasks; and then send the one or more subtasks to one or more first subsystem.

It should be noted that, in the embodiment of this application, the first subsystem can be any subsystem among multiple subsystems, that is, the DVFS management system can send one or more subtasks to any number of subsystems in all subsystems system. Next, the DVFS management system may also receive the expected voltage in the next adjustment cycle sent by each of any number of subsystems.

It can be understood that, in the embodiment of the present application, the expected voltage of each subsystem in the next adjustment cycle can predict the voltage required by each subsystem in the next adjustment cycle. 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 period can be generated.

It should be noted that, in the embodiment of the present application, the first subsystem may inform the DVFS management system of its expected voltage in the next adjustment period through the reported work task list in the next adjustment period.

Further, in the embodiment of the present application, the work task list may represent the corresponding relationship between different subtasks and expected voltages and durations. Wherein, the work task list is in one-to-one correspondence with the first subsystem, that is, a first subsystem will report a work task list correspondingly. Correspondingly, through the work task list reported by the first subsystem, the DVFS management system can determine the expected voltage of the first subsystem in the next adjustment cycle,

It can be understood that, in the embodiment of the present application, the expected voltages corresponding to different subtasks in the first subsystem may predict the working voltage required by the first subsystem when performing the subtask.

It should be noted that, in the embodiment of the present application, based on the work task list reported by the first subsystem, the expected voltage and duration corresponding to different subtasks can be determined. Wherein, the duration may be the continuous working time when the corresponding subtask is executed under the corresponding expected voltage. For example, Table 1 is a list of working tasks. As shown in Table 1, the list of working tasks can be used to determine the expected voltage and duration corresponding to the four subtasks, wherein the expected voltage required to execute subtask 1 is 0.4V, corresponding to The duration of the subtask 3 is 150us; the expected voltage required to execute subtask 3 is 1V, and the corresponding duration is 100us.

Table 1

the	期望电压(V)Expected voltage (V)	持续时间(us)Duration (us)
子任务1 Subtask 1	0.40.4	150150
子任务2Subtask 2	0.70.7	500500
子任务3Subtask 3	11	100100
子任务4Subtask 4	0.70.7	350350

Further, in the embodiment of the present application, the corresponding relationship between the expected voltage and the expected frequency can be determined in advance, that is, for an expected voltage, the corresponding expected frequency can be determined based on the corresponding relationship between the expected voltage and the expected frequency. Wherein, the corresponding relationship between the expected voltage and the expected frequency can be applied to different subsystems, that is, multiple subsystems in the DVFS management system can all use the same corresponding relationship between the expected voltage and the expected frequency. For example, Table 2 shows the corresponding relationship between expected voltage and expected frequency. As shown in Table 2, if the operating frequency required by the subsystem is 100MHz, then the corresponding required voltage value is 0.4V. If the operating frequency of the subsystem is 500MHz, then the corresponding required voltage value is 0.7V. If the required operating frequency of the subsystem is 1000MHz, then the corresponding required voltage value is 1V.

Table 2

期望频率(MHz)Expected Frequency(MHz)	期望电压(V)Expected voltage (V)
100100	0.40.4
……...	……...
500500	0.70.7
……...	……...
10001000	11

It can be understood that, in the embodiment of the present application, the work task list obtained by the DVFS management system and reported by the first subsystem can also represent the corresponding relationship between different subtasks and expected frequencies and durations, and can also represent different subtasks. Correspondence between subtasks and expected voltage, expected frequency, and duration.

It can be seen that, in the embodiment of the present application, the DVFS management system can determine the corresponding expected operating frequency (expected voltage) through the expected operating voltage (expected frequency) in the working task list reported by the first subsystem. Therefore, based on the above Table 1 and Table 2, a form of the task list can be obtained as shown in Table 3:

table 3

the	期望频率(MHz)Expected Frequency(MHz)	期望电压(V)Expected voltage (V)	持续时间(us)Duration (us)
子任务1 Subtask 1	100100	0.40.4	150150
子任务2Subtask 2	500500	0.70.7	500500
子任务3Subtask 3	10001000	11	100100
子任务4Subtask 4	500500	0.70.7	350350

It should be noted that, in the embodiment of the present application, the subsystem may further determine the corresponding duration of the subtask according to the workload of the subtask and the corresponding expected frequency. For example, the subsystem may determine the quotient of the workload of a subtask and the desired frequency as the corresponding duration.

It can be understood that, in the embodiment of the present application, if the execution time corresponding to one or more subtasks received by the subsystem is T, then the sum of the duration required by the subsystem to execute the one or more subtasks is T . For example, if a subsystem receives a 1000us task packet including 4 subtasks, then the duration corresponding to the execution of the 4 subtasks by the subsystem can be 150us, 500us, 100us, 350us respectively, and the total is 1000us.

Further, in the embodiment of the present application, the DVFS management system can also be used to adjust the execution sequence of one or more subtasks according to the expected voltage of each first subsystem in the next adjustment cycle, and according to the adjusted one Or the execution sequence of multiple subtasks and the expected voltage corresponding to each first subsystem configures the power supply voltage received in the next adjustment cycle.

It should be noted that, in the embodiment of this application, after the DVFS management system obtains the expected voltage sent by the first subsystem in the next adjustment period, it can perform task scheduling processing based on the expected voltage, so as to complete one or Adjustment of execution order of multiple subtasks.

It should be noted that, in the embodiment of the present application, based on the above-mentioned FIG. 4 , the DVFS management system 12 may further include a computing decision unit 122 . Specifically, the calculation decision unit may be configured to adjust the execution sequence of one or more subtasks according to the expected voltage of each first subsystem in a next adjustment period.

Further, in the embodiment of the present application, the DVFS management system can specifically be used to generate multiple task sequence combinations according to the expected voltage of each first subsystem in the next adjustment period; energy consumption parameters; adjust the execution order of one or more subtasks according to multiple energy consumption parameters.

It can be understood that, in the embodiments of the present application, for at least one subtask of the first subsystem, at least one task sequence can be determined according to the time sequence of execution, for example, if the first subsystem corresponds to two subtasks, Including subtask 1 and subtask 2, there are two task sequences, that is, execute subtask 1 first and then execute subtask 2, or execute subtask 2 first and then execute subtask 1.

It should be noted that, in the embodiment of the present application, in each sequence combination of tasks, different first subsystems execute corresponding subtasks in parallel, that is, different first subsystems execute subtasks independently of each other. Influence.

It can be understood that, in the embodiment of the present application, the DVFS management system can randomly combine different execution orders of different subtasks of all the first subsystems to determine multiple task order combinations, and then select from multiple The optimal target sequence combination is selected from the task sequence combination, where the optimal target sequence combination can be selected using energy consumption parameters as a reference, and finally, one or more subtasks can be adjusted based on the optimal target sequence combination order of execution.

That is to say, in the embodiment of this application, the adjustment of the execution sequence of one or more subtasks is determined by the DVFS management system based on the optimal combination result of the overall combination of the execution sequences of all subtasks of all first subsystems , so that the entire system can achieve a smaller power consumption.

It should be noted that, in the embodiment of the present application, the DVFS management system can specifically be used to determine the corresponding relationship between multiple groups of expected voltages and durations corresponding to multiple task sequence combinations; The corresponding relationship determines multiple energy consumption parameters.

It can be understood that, in the embodiment of the present application, after the DVFS management system completes the free combination of the execution order of all the subtasks of the first subsystem and determines a plurality of task sequence combinations, it can further calculate and obtain multiple task Multiple corresponding energy consumption parameters are sequentially combined. Specifically, the DVFS management system may respectively determine multiple sets of correspondences between expected voltages and durations corresponding to multiple task sequence combinations; and then determine multiple energy consumption parameters respectively according to the correspondences between multiple sets of expected voltages and durations.

It should be noted that, in the embodiment of this application, for each task sequence combination, the DVFS management system can determine that all the first subsystems can be satisfied in different time periods according to the expected voltage and duration corresponding to each subtask. The voltage required by the work, so that the establishment of a corresponding set of corresponding relationship between expected voltage and duration can be completed.

It can be understood that, in the embodiment of the present application, after determining the corresponding relationship between each group of expected voltage and duration corresponding to each task sequence combination, the DVFS management system can Calculate the energy consumption parameters corresponding to the task sequence combination.

For example, in the embodiment of the present application, as shown in Table 4 and Table 5, for the two first subsystems of subsystem a and subsystem b, subsystem a corresponds to three subtasks, respectively subtask a1, subtask For task a2 and subtask a3, subsystem b corresponds to two subtasks, namely subtask b1 and subtask b2.

Table 4

the	期望频率(MHz)Expected Frequency(MHz)	期望电压(V)Expected voltage (V)	持续时间(us)Duration (us)
子任务a1Subtask a1	100100	0.40.4	350350
子任务a2Subtask a2	500500	0.70.7	300300
子任务a3 Subtask a3	10001000	11	350350

table 5

the	期望频率(MHz)Expected Frequency(MHz)	期望电压(V)Expected voltage (V)	持续时间(us)Duration (us)
子任务b1 Subtask b1	10001000	0.40.4	450450
子任务b2Subtask b2	100100	0.70.7	550550

It can be understood that, in the embodiment of the present application, based on the above Table 4, the DVFS management system can determine that subsystem a corresponds to 3! =3×2=6 task sequences; based on the above Table 5, the DVFS management system can determine that subsystem b corresponds to 2! =2×1=2 task sequences. Therefore, for the two first subsystems, subsystem a and subsystem b, the DVFS management system can determine 6×2=12 task sequence combinations.

Further, in the embodiment of the present application, the DVFS management system may further calculate 12 energy consumption parameters corresponding to the 12 task sequence combinations. Among them, for the task sequence of subsystem a is subtask a1, subtask a2, and subtask a3, and the task sequence of subsystem b is the combination of subtask b1 and subtask b2, the DVFS management system needs to determine The task sequence combination corresponds to a set of correspondences between expected voltages and durations.

For example, in the embodiment of the present application, FIG. 5 is a schematic diagram of task sequence combination. As shown in FIG. 5 , the voltage requirements of subsystem a and subsystem b in the entire cycle (within 1000us) can be determined first. Figure 6 is a schematic diagram of the corresponding relationship between expected voltage and duration. As shown in Figure 6, based on Figure 5, combined with the voltage requirements of subsystem a and subsystem b in the entire cycle (within 1000us), the task sequence combination can be determined The correspondence between the desired voltage and duration required.

It can be understood that, in the embodiment of the present application, after completing the establishment of the corresponding relationship between the expected voltage and the duration corresponding to each task sequence combination, the DVFS management system can further calculate multiple energy values corresponding to multiple task sequence combinations. consumption parameters.

Further, in the embodiment of the present application, the DVFS management system can specifically be used to combine each group of expected voltages and duration corresponding to each task sequence according to the expected voltage of each first subsystem in the next adjustment period. The corresponding relationship and the energy consumption calculation model are calculated to obtain the energy consumption parameters corresponding to each task sequence combination.

It can be understood that, in the embodiment of the present application, the energy consumption calculation model may be used to estimate and predict the overall energy consumption of the first subsystem. For example, the DVFS management system can choose to use the semiconductor dynamic energy consumption formula shown in the following formula (1) as the energy consumption calculation model:

Qi＝V ² ×Ci×f×t (1)

Among them, Qi represents the energy consumption of subsystem i, V is the expected voltage, f is the expected power of work, t is the duration, and Ci is the load capacitance. Specifically, for different subsystems, the value of Ci is fixed after the hardware design is completed, that is, each subsystem is correspondingly provided with a fixed Ci.

That is to say, in the embodiment of the present application, for a task sequence combination, the DVFS management system is based on the expected voltage of subsystem a and subsystem b in the next adjustment cycle, and the corresponding relationship between expected voltage and duration, based on the above After formula (1) calculates the energy consumption Qa of subsystem a and the energy consumption Qb of subsystem b respectively, the sum of Qa and Qb can be combined as the overall energy consumption parameter Q corresponding to the sequence of tasks.

Further, in the embodiment of the present application, the DVFS management system can be specifically configured to determine the task sequence combination corresponding to the minimum energy consumption parameter among multiple energy consumption parameters as the target sequence combination; based on the target sequence combination, the DVFS management system Adjust the execution order of one or more subtasks.

It can be understood that, in the embodiment of the present application, after the calculation of the energy consumption parameters corresponding to each task sequence combination is completed, the DVFS management system may further adjust the execution order of one or more subtasks according to multiple energy consumption parameters. Specifically, the DVFS management system may choose to determine the task sequence combination corresponding to the minimum energy consumption parameter among multiple energy consumption parameters as the target sequence combination; and then complete the adjustment of the execution sequence of one or more subtasks based on the target sequence combination.

It should be noted that, in the embodiment of the present application, the DVFS management system can select the task sequence combination corresponding to the minimum energy consumption parameter, and obtain the execution sequence of the subtasks corresponding to the first subsystem according to the task sequence combination. In this way, every When a subsystem executes subtasks according to the corresponding execution order, the energy consumption of the whole system can be minimized.

For example, in the embodiment of the present application, if the task sequence combination corresponding to the minimum energy consumption parameter is: the task sequence of subsystem a is subtask a1, subtask a2, and subtask a3, and the task sequence of subsystem b is subtask b2, subtask b1, then subsystem a executes subtasks in the order of execution of task a1, subtask a2, and subtask a3, and subsystem b executes subtasks in the order of execution of subtask b2 and subtask b1.

Further, in the embodiment of the present application, based on the above-mentioned FIG. 4 , the DVFS management system 12 may further include a voltage regulation control unit 123 . Specifically, the voltage regulation control unit may be configured to configure the power supply voltage received in the next adjustment period according to the adjusted execution sequence of one or more subtasks and the corresponding expected voltage of each first subsystem.

It should be noted that, in the embodiment of the present application, based on the above-mentioned FIG. 4 , the DVFS management system 12 may further include a high-speed data interface 124 . Specifically, the high-speed data interface can be used to send a voltage adjustment request to the power management module. Wherein, the voltage adjustment request is used to instruct the power management module to adjust the power supply voltage.

It can be understood that, in the embodiment of the present application, the power management module may be used to provide a power supply voltage for the baseband chip.

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

In the embodiment of this application, after adjusting the execution sequence of one or more subtasks according to the expected voltage of each first subsystem in the next adjustment cycle, the DVFS management system can follow the adjusted execution sequence of one or more subtasks. The execution sequence and the expected voltage corresponding to each first subsystem schedule the first subsystem to perform different subtasks. Specifically, the DVFS management system can complete the voltage adjustment process according to the adjusted execution sequence of one or more subtasks and the corresponding expected voltage of each first subsystem, so as to configure the power supply voltage received in the next adjustment period.

Further, in the embodiment of the present application, when scheduling the first subsystem to execute subtasks, the DVFS management system may choose to send the adjusted execution sequence of one or more subtasks to the corresponding first subsystem, so that The first subsystem can be made to execute different subtasks according to the adjusted execution sequence of one or more subtasks.

Further, in the embodiment of the present application, when performing voltage adjustment processing, the DVFS management system can first determine the supply voltage for different time periods according to the corresponding relationship between the target sequence combination and the corresponding expected voltage and duration, and then according to the different time periods The power supply voltage generates a voltage adjustment request; then the voltage adjustment request can be sent to the power management module configured on the terminal device, so that the power management module can complete the voltage adjustment process based on the voltage adjustment request.

That is to say, in the embodiment of the present application, after determining the optimal target sequence combination among multiple task sequence combinations, on the one hand, the DVFS management system can adjust the first subsystem based on the target sequence combination The execution sequence of one or more subtasks to schedule the first subsystem to execute different subtasks in turn; The operating voltage is adjusted to ensure that the power supply voltage received by the system in the next adjustment period can meet the working requirements of multiple subsystems.

It should be noted that, in the embodiment of this application, when the DVFS management system generates voltage adjustment requests according to the supply voltages of different time periods, it can choose to package the supply voltages of different time periods according to the preset compression format, so that A corresponding voltage adjustment request may be generated.

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.

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 power supply voltage of different time periods, the voltage regulation control unit can choose to first perform compression on the power supply voltage of different time periods according to the preset compression format. Packing and processing, generating a voltage adjustment request, and then transmitting 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.

That is to say, in the embodiment of the present application, after calculating the power supply voltage of different time periods, the calculation and decision-making unit in the DVFS management system can transmit the power supply voltage of different time periods to the voltage regulation control unit, and the voltage regulation control unit After the unit packs the power supply voltage of the different time periods according to the agreed format (preset compression format), it generates a voltage adjustment request and sends the voltage adjustment request to the high-speed data interface. The high-speed data interface can follow the system power management interface (System Power Management Interface, SPMI) and other physical interface formats (preset interface format), and then send it to the power management module.

Further, in the embodiment of this application, after receiving the voltage adjustment request sent by the baseband chip, the power management module in the terminal device can determine the corresponding power supply voltage for different time periods based on the voltage adjustment request, and then follow the The power supply voltage in different time periods is subjected to voltage adjustment processing. Specifically, the power management module can control the real-time output voltage according to the supply voltage in different time periods.

It should be noted that, in the embodiment of the present application, FIG. 7 is a schematic diagram of a power management module. As shown in FIG. 7, the power management module may include several parts such as a high-speed communication interface, a control register, and a DC converter (DCDC). . Wherein, after receiving the voltage adjustment request, the high-speed communication interface in the power management module can interpret and convert to obtain the DCDC power supply voltage, and then control the DCDC output by adjusting the control register. Specifically, DCDC can adjust the voltage at a typical rate of 20mV/us. At this time, if it adjusts 100mv, it will take 5us.

An embodiment of the present application provides a baseband chip. The baseband chip includes multiple subsystems and a DVFS management system, wherein the DVFS management system is used to deliver one or more subtasks to one or more first Subsystems; wherein, the first subsystem is a subsystem that executes subtasks; each first subsystem is used to send the expected voltage in the next adjustment period to the DVFS management system according to the received subtasks; the DVFS management system , is also used to adjust the execution order of one or more subtasks according to the expected voltage of each first subsystem in the next adjustment period, and correspond to each first subsystem according to the adjusted execution order of one or more subtasks The desired voltage of , configures the supply voltage received in the next trim cycle. That is to say, in the embodiment of the present application, the DVFS management system configured by the baseband chip of the terminal device can obtain the expected voltage of the subsystem in the next adjustment period, and determine the maximum value of the subtask corresponding to the subsystem based on the expected voltage. Optimal execution sequence, and then control the subsystem to process subtasks according to the execution sequence, and complete voltage adjustment at the same time, so that task scheduling and voltage control can be accurately performed, and the power consumption of the system can be effectively reduced.

An embodiment of the present application provides a task scheduling method, which can be applied to a terminal device, where the terminal device can be configured with a baseband chip, and the baseband chip can include multiple subsystems and a DVFS management system.

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 multiple subsystems, and the multiple subsystems 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 task scheduling processing and voltage adjustment processing.

It should be noted that, in the embodiment of the present application, the DVFS management system may first issue one or more subtasks to one or more first subsystems among the plurality of subsystems; wherein, the first subsystem is the execution subsystem task subsystem; then, each first subsystem can send the expected voltage in the next adjustment cycle to the DVFS management system according to the received subtask; finally, the DVFS management system can follow each first subsystem in the next The expected voltage in an adjustment period adjusts the execution order of one or more subtasks, and according to the adjusted execution order of one or more subtasks and the expected voltage corresponding to each first subsystem, configure the received in the next adjustment period supply voltage.

It can be understood that, in the embodiment of the present application, the DVFS management system may include a task management unit, wherein the task management unit may decompose one or more received tasks into one or more subtasks; The or multiple subtasks are sent to one or more first subsystems in the multiple subsystems respectively.

Further, in the embodiment of the present application, the DVFS management system may include a calculation decision unit, wherein the calculation decision unit may adjust the execution order of one or more subtasks according to the expected voltage of each first subsystem in the next adjustment period .

Further, in the embodiment of the present application, the DVFS management system may include a voltage regulation control unit, wherein the voltage regulation control unit may follow the adjusted execution sequence of one or more subtasks and the expectations corresponding to each first subsystem Voltage, configures the supply voltage received during the next trim cycle.

Further, in the embodiment of the present application, the DVFS management system may include a high-speed data interface, wherein the high-speed data interface may send a voltage adjustment request to the power management module; wherein the power management module is used to provide a power supply voltage for the baseband chip; the voltage The adjustment request is used to instruct the power management module to adjust the magnitude of the supply voltage.

It should be noted that, in this embodiment of the application, when adjusting the execution order of one or more subtasks according to the expected voltage of each first subsystem in the next adjustment period, the DVFS management system may first The expected voltage of the subsystem in the next adjustment cycle generates multiple task sequence combinations; then multiple energy consumption parameters corresponding to multiple task sequence combinations can be calculated; finally, the execution of one or more subtasks can be adjusted according to multiple energy consumption parameters order.

Further, in the embodiment of the present application, when calculating multiple energy consumption parameters corresponding to multiple task sequence combinations, the DVFS management system may first determine the correspondence between multiple groups of expected voltages and durations corresponding to multiple task sequence combinations ; Then determine a plurality of energy consumption parameters according to the corresponding relationship between multiple sets of expected voltages and durations.

Further, in the embodiment of the present application, when the DVFS management system adjusts the execution sequence of one or more subtasks according to multiple energy consumption parameters, it may first set the task sequence corresponding to the minimum energy consumption parameter among the multiple energy consumption parameters The combination is determined as a target sequence combination; and then based on the target sequence combination, the execution sequence of one or more subtasks is adjusted.

Figure 9 is a schematic diagram of the first implementation flow of the task scheduling method. As shown in Figure 9, in the embodiment of the present application, the method for the terminal device to perform task scheduling may include the following steps:

Step 101: After sending one or more subtasks to the first subsystem, the DVFS management system obtains the work task list reported by the first subsystem; wherein, the work task list represents different subtasks and expectations in the next adjustment period Correspondence between voltage and duration; the first subsystem is any number of subsystems among the plurality of subsystems.

In the embodiment of the present application, after sending one or more subtasks to the first subsystem among the multiple subsystems, the DVFS management system can obtain the work task list reported by the first subsystem, so that it can determine according to the work task list The desired voltage of the first subsystem during the next trim cycle.

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 multiple subsystems, where the multiple subsystems may respectively perform tasks in the same voltage domain. The baseband chip configured in the terminal device may also include a DVFS management system, wherein the DVFS management system may communicate with multiple subsystems respectively.

In the embodiment of the present application, the DVFS management system may be composed of several parts such as a task management unit, a calculation decision unit, a voltage regulation control unit, and a high-speed data interface. Among them, the task management unit can identify one or more tasks of the baseband chip at present and in the future (such as 1000us), and at the same time disassemble one or more tasks of the baseband chip into one or more subtasks and assign them to each subsystem, It is also possible to collect the work task lists of the subsystems in the next adjustment cycle fed back by different subsystems; the calculation decision-making unit can perform task scheduling processing according to the expected voltage in the work task lists of each subsystem, and complete the execution of one or more sub-tasks sequence adjustment. Among them, the voltage regulation control unit can pack the power supply voltage of different time periods according to the agreed format, and then send it to the high-speed data interface; the high-speed data interface can further send it to the power management module.

It should be noted that, in the embodiment of this application, the first subsystem can be any subsystem among multiple subsystems, that is, the DVFS management system can send one or more subtasks to any number of subsystems in all subsystems Correspondingly, the DVFS management system can also receive the corresponding work task list reported by each subsystem in any number of subsystems.

Further, in the embodiment of the present application, the work task list may represent the corresponding relationship between different subtasks in the next adjustment period, the expected voltage and the duration. Wherein, the work task list is in one-to-one correspondence with the first subsystem, that is, a first subsystem will report a work task list correspondingly.

It should be noted that, in the embodiment of the present application, based on the work task list reported by the first subsystem, the expected voltage and duration corresponding to different subtasks can be determined. Wherein, the duration may be the continuous working time when the corresponding subtask is executed under the corresponding expected voltage. For example, the above Table 1 is a list of working tasks. As shown in Table 1, the list of working tasks can be used to determine the expected voltage and duration corresponding to the four subtasks, wherein the expected voltage required to execute subtask 1 is 0.4V, The corresponding duration is 150us; the expected voltage required to execute subtask 3 is 1V, and the corresponding duration is 100us. Further, in the embodiment of the present application, the corresponding relationship between the expected voltage and the expected frequency can be determined in advance, that is, for an expected voltage, the corresponding expected frequency can be determined based on the corresponding relationship between the expected voltage and the expected frequency. Wherein, the corresponding relationship between the expected voltage and the expected frequency can be applied to different subsystems, that is, multiple subsystems in the DVFS management system can all use the same corresponding relationship between the expected voltage and the expected frequency. For example, the above Table 2 shows the corresponding relationship between expected voltage and expected frequency. As shown in Table 2, if the operating frequency required by the subsystem is 100MHz, then the corresponding required voltage value is 0.4V. The required operating frequency is 500MHz, so the corresponding required voltage value is 0.7V. If the required operating frequency of the subsystem is 1000MHz, then the corresponding required voltage value is 1V. It can be understood that, in the embodiment of the present application, the work task list obtained by the DVFS management system and reported by the first subsystem can also represent the corresponding relationship between different subtasks and expected frequencies and durations, and can also represent different subtasks. Correspondence between subtasks and expected voltage, expected frequency, and duration.

It can be seen that, in the embodiment of the present application, the DVFS management system can determine the corresponding expected operating frequency (expected voltage) through the expected operating voltage (expected frequency) in the working task list reported by the first subsystem. Therefore, based on the above Table 1 and Table 2, one form of the work task list can be obtained as the above Table 3. It should be noted that, in the embodiment of the present application, the subsystem may further determine the corresponding duration of the subtask according to the workload of the subtask and the corresponding expected frequency. For example, a subsystem may determine the quotient of the workload of a subtask and the desired frequency as the corresponding duration.

Step 102, the DVFS management system performs task scheduling processing based on the work task list, and determines the target task sequence corresponding to the first subsystem.

In the embodiment of this application, after sending one or more subtasks to the first subsystem and obtaining the list of work tasks in the next adjustment period reported by the first subsystem, the DVFS management system can The list performs task scheduling processing, so as to determine the target task sequence corresponding to the first subsystem.

Further, in the embodiment of the present application, the target task sequence corresponding to the first subsystem may be one of at least one task sequence corresponding to the first subsystem.

It should be noted that, in the embodiment of the present application, when the DVFS management system performs task scheduling processing based on the work task list and determines the target task sequence corresponding to the first subsystem, it may first The list generates multiple task sequence combinations; and then calculates multiple energy consumption parameters corresponding to the multiple task sequence combinations; finally, the target task sequence corresponding to the first subsystem can be determined according to the multiple energy consumption parameters.

It can be understood that, in the embodiment of the present application, the DVFS management system can randomly combine different execution orders of different subtasks of all the first subsystems to determine multiple task order combinations, and then select from multiple Select the optimal target sequence combination from the task sequence combination, where the optimal target sequence combination can be selected with energy consumption parameters as a reference, and finally, each subsystem can be determined based on the optimal target sequence combination Corresponding target task sequence.

That is to say, in the embodiment of this application, the target task sequence of the first subsystem is determined by the DVFS management system based on the optimal combination result of the overall combination of the execution sequences of all subtasks of all the first subsystems. A first subsystem executes the subtasks according to the sequence of the corresponding target tasks, so that the whole system can achieve lower power consumption.

Furthermore, in the embodiment of this application, after the DVFS management system completes the free combination of the execution order of all the subtasks of the first subsystem and determines multiple task sequence combinations, it can further calculate and obtain multiple task sequence combinations Corresponding multiple energy consumption parameters. Specifically, the DVFS management system can first determine the corresponding relationships between multiple sets of expected voltages and durations corresponding to multiple task sequence combinations according to the list of all work tasks; Energy consumption parameters.

It should be noted that, in the embodiment of the present application, for each task sequence combination, the DVFS management system can determine the expected voltage and duration corresponding to each subtask in the work task list to determine the The voltages required by the work of all the first subsystems, so that the establishment of a corresponding set of corresponding relationships between expected voltages and durations can be completed.

For example, in the embodiment of the present application, for the two first subsystems of subsystem a and subsystem b, the above table 4 is the work task list of subsystem a, and the above table 5 is the work task list of subsystem b, wherein , subsystem a corresponds to three subtasks, namely subtask a1, subtask a2 and subtask a3, and subsystem b corresponds to two subtasks, respectively subtask b1 and subtask b2. It can be understood that, in the embodiment of the present application, based on the above Table 4, the DVFS management system can determine that subsystem a corresponds to 3! =3×2=6 task sequences; based on the above Table 5, the DVFS management system can determine that subsystem b corresponds to 2! =2×1=2 task sequences. Therefore, for the two first subsystems, subsystem a and subsystem b, the DVFS management system can determine 6×2=12 task sequence combinations.

Further, in the embodiment of the present application, the DVFS management system may further calculate 12 energy consumption parameters corresponding to the 12 task sequence combinations. Among them, for the task sequence of subsystem a is subtask a1, subtask a2, and subtask a3, and the task sequence of subsystem b is the combination of subtask b1 and subtask b2, the DVFS management system needs to The working task lists of both system a and subsystem b determine the corresponding relationship between a group of expected voltages and durations corresponding to the sequence combination of tasks.

Further, in the embodiment of the present application, when the DVFS management system determines multiple energy consumption parameters according to the correspondence between multiple groups of expected voltages and durations, for one of the task sequence combinations, the DVFS management system can , the corresponding relationship between the expected voltage and the duration corresponding to the task sequence combination, and the energy consumption calculation model, and calculate and obtain the energy consumption parameters corresponding to the task sequence combination.

It can be understood that, in the embodiment of the present application, the energy consumption calculation model may be used to estimate and predict the overall energy consumption of the first subsystem. For example, the DVFS management system may choose to use the semiconductor dynamic energy consumption formula shown in the above formula (1) as the energy consumption calculation model.

That is to say, in the embodiment of this application, for a task sequence combination, the DVFS management system, according to the work task list of subsystem a and subsystem b, corresponds to the corresponding relationship between expected voltage and duration, based on the above formula (1) After the energy consumption Qa of subsystem a and the energy consumption Qb of subsystem b are calculated and obtained respectively, the sum of Qa and Qb can be combined as the overall energy consumption parameter Q corresponding to the task sequence.

It can be understood that, in the embodiment of the present application, after completing the calculation of the energy consumption parameters corresponding to each task sequence combination, the DVFS management system can further determine the target task sequence corresponding to the first subsystem according to multiple energy consumption parameters . Specifically, the DVFS management system may choose to determine the task sequence combination corresponding to the minimum energy consumption parameter among multiple energy consumption parameters as the target sequence combination; and then determine the target task sequence corresponding to each first subsystem based on the target sequence combination .

It should be noted that, in the embodiment of this application, the DVFS management system can select the task sequence combination corresponding to the minimum energy consumption parameter, and obtain the target task sequence corresponding to the first subsystem according to the task sequence combination. In this way, each subsystem When the system executes the subtasks according to the corresponding target task sequence, the energy consumption of the whole system can be minimized.

For example, in the embodiment of the present application, if the task sequence combination corresponding to the minimum energy consumption parameter is: the task sequence of subsystem a is subtask a1, subtask a2, and subtask a3, and the task sequence of subsystem b is subtask b2, subtask b1, then the sequence of target tasks corresponding to subsystem a is task a1, subtask a2, subtask a3, and the sequence of target tasks corresponding to subsystem b is subtask b2, subtask b1.

Step 103 , the DVFS management system schedules the first subsystem to execute different subtasks according to the target task order, and at the same time, the DVFS management system performs voltage adjustment processing.

In the embodiment of this application, after performing task scheduling processing based on the work task list and determining the target task sequence corresponding to the first subsystem, the DVFS management system can schedule the first subsystem to execute different subtasks according to the target task sequence, and at the same time , The DVFS management system can also perform voltage adjustment processing.

Further, in the embodiment of this application, when scheduling the first subsystem to execute subtasks according to the target task sequence, the DVFS management system can choose to deliver the target task sequence to the corresponding first subsystem, so that the first The subsystem executes different subtasks in the order of the target task.

That is to say, in the embodiment of the present application, after the optimal target sequence combination is determined among multiple task sequence combinations, on the one hand, the DVFS management system can obtain the target sequence of the first subsystem based on the target sequence combination The task sequence is used to schedule the first subsystem to execute different subtasks in sequence; on the other hand, the DVFS management system also needs to combine the corresponding relationship between the corresponding expected voltage and the duration according to the target sequence to adjust the operating voltage of the system, so as to ensure The operating voltage of the system can meet the working requirements of multiple subsystems.

Further, in the embodiment of the present application, the DVFS management system can also 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.

That is to say, in the embodiment of the present application, after calculating the power supply voltage of different time periods, the calculation and decision-making unit in the DVFS management system can transmit the power supply voltage of different time periods to the voltage regulation control unit, and the voltage regulation control unit After the unit packs the power supply voltage of the different time periods according to the agreed format (preset compression format), it generates a voltage adjustment request and sends the voltage adjustment request to the high-speed data interface. The high-speed data interface can follow the system power management interface SPMI and other physical interface format (preset interface format), and then send it to the power management module.

In the embodiment of the present application, the method for the terminal device to perform task scheduling may also include the following steps:

Step 104, the DVFS management system determines one or more tasks of the baseband chip.

Step 105, the DVFS management system disassembles one or more tasks of the baseband chip to obtain one or more subtasks.

In the embodiment of the present application, the DVFS management system can first determine one or more tasks of the baseband chip, and then disassemble and process one or more tasks of the baseband chip, thereby generating multiple one or more subtasks, One or more subtasks can be delivered to different subsystems by the DVFS management system.

It can be understood that, in the embodiment of the present application, the DVFS management system can identify one or more tasks of the baseband chip according to the types of services to be performed by the baseband part at present and in the future (for example, 1000us). Wherein, the service type may include a download service, a transmission service, and the like.

Further, in the embodiments of the present application, the first subsystem in the baseband chip configured in the terminal device can also decompose and process one or more subtasks, so that the one or more subtasks that the first subsystem needs to execute can be obtained. The subtasks of the first subsystem corresponding to subtasks.

In the embodiment of the present application, the first subsystem can determine the expected voltage corresponding to each subtask, and the time required to execute the subtask, that is, the duration, and then based on the subtask and the expected voltage, duration The corresponding relationship between the first subsystems is established to establish a work task list corresponding to the first subsystem.

Further, in the embodiment of the present application, the first subsystem may predict the voltage required for executing the subtask, so as to determine the expected voltage corresponding to the subtask. Specifically, the first subsystem may first determine the corresponding expected frequency when executing the subtask, and then use the expected frequency to further determine the corresponding expected voltage. Wherein, when performing different subtasks, the expected frequency required by the first subsystem may be different, and correspondingly, the expected voltage required may also be different.

Yet another embodiment of the present application proposes a task scheduling method, which is applied to a terminal device. The terminal device may include a power management module, a radio frequency module, and a baseband chip. powered by.

Further, in the embodiment of the present application, the baseband chip in the terminal device may include multiple subsystems and a DVFS management system. Among them, multiple subsystems can work in the same voltage domain; the DVFS management system can be used for task scheduling processing and voltage adjustment processing.

Fig. 10 is a schematic diagram 2 of the structure of the baseband chip. As shown in Fig. 10, the baseband chip includes n subsystems (n is an integer greater than 1) in the same voltage domain, and a DVFS management system. Specifically, the DVFS management system may include a task management unit, a calculation decision unit, a voltage regulation control unit, and a high-speed data interface.

It should be noted that, in the embodiment of the present application, under the same voltage domain, each subsystem can decompose and confirm the respective subtasks and their subtasks in the future (in the next adjustment cycle) according to their current working status and tasks. Corresponding to the frequency requirements, 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. At the same time, the working time required to perform each subtask can also be predicted and determined. The corresponding duration can be determined, and then the corresponding relationship between each subtask in the first subsystem and the expected voltage and duration can be established. As shown in Table 1 above, for the four subtasks, the subsystem can predict the expected voltage and duration required to execute the subtasks.

It can be understood that, in the embodiment of the present application, for different subtasks, there is no dependency on the execution order of the subsystems, that is, the subsystems can execute different subtasks in any order. There is a fixed correspondence between the expected frequency and the expected voltage of any subtask, and the duration of the subtask can be determined by the quotient of the subtask's work load and the corresponding expected frequency.

Further, in the embodiment of the present application, in addition to the dismantling and allocation of one or more tasks of the baseband chip, the task management unit can also be responsible for collecting the work task list in the next adjustment period fed back by each subsystem, so that The computing decision unit can further complete task scheduling and voltage adjustment processing according to the expected voltage in the obtained work task list.

That is to say, in the embodiment of the present application, after obtaining multiple work task lists fed back by multiple subsystems (the first subsystem), the task management unit in the DVFS management system can transmit the multiple work task lists to the calculation decision-making unit, and then the calculation decision-making unit performs subsequent processing according to the multiple work task lists.

Further, in the embodiment of the present application, FIG. 11 is a schematic diagram of the second implementation flow of the task scheduling method. As shown in FIG. 11 , the method for the terminal device to perform task scheduling may also include the following steps:

Step 201, the DVFS management system disassembles one or more tasks of the baseband chip to obtain one or more subtasks.

Step 202, the DVFS management system sends one or more subtasks to the first subsystem.

In the embodiment of the present application, the task management unit in the DVFS management system can first identify one or more tasks of the baseband chip according to the business type of the baseband part to be executed for a period of time (such as 1000us) in the future, and then perform One or more tasks of the chip are disassembled to obtain corresponding one or more subtasks, and then the one or more subtasks can be delivered to different first subsystems respectively.

Step 203, the first subsystem generates a corresponding work task list according to one or more subtasks.

In the embodiment of this application, after the first subsystem receives one or more subtasks issued by the DVFS management system, it can determine the expected voltage and duration corresponding to each subtask based on the one or more subtasks, and finally A work task list can be established according to the correspondence between subtasks and expected voltages and durations.

It can be understood that, in the embodiment of the present application, the work task list can determine the expected voltage and duration required by the corresponding subsystem when performing a subtask.

Step 204, the first subsystem sends the corresponding work task list to the DVFS management system.

In the embodiment of this application, after the task management unit in the DVFS management system obtains the multiple work task lists fed back by the first subsystem, it can transmit the multiple work task lists to the calculation decision-making unit, and then the calculation decision-making unit The unit performs subsequent processing according to the plurality of work task lists.

Step 205, the DVFS management system generates multiple task sequence combinations based on the work task list.

In the embodiment of the present application, the calculation and decision-making unit in the DVFS management system may first generate multiple task sequence combinations according to all work task lists of all first subsystems. Wherein, in each task sequence combination, different first subsystems execute corresponding subtasks in parallel, that is, different first subsystems do not affect each other when executing subtasks.

It can be understood that, in the embodiment of the present application, the calculation and decision-making unit in the DVFS management system may randomly combine different execution orders of different subtasks of all first subsystems to determine multiple task sequence combinations.

Step 206, the DVFS management system calculates and determines multiple energy consumption parameters corresponding to multiple task sequence combinations.

In the embodiment of the present application, the calculation and decision-making unit in the DVFS management system may separately calculate multiple energy consumption parameters corresponding to multiple task sequence combinations. Specifically, according to the list of all work tasks, the corresponding relationships between multiple groups of expected voltages and durations corresponding to multiple task sequence combinations can be determined respectively; and then multiple energy consumption parameters can be respectively determined according to the corresponding relationships between multiple groups of expected voltages and duration .

Further, in the embodiment of the present application, when multiple energy consumption parameters are determined according to the corresponding relationship between multiple sets of expected voltages and durations, for one of the task sequence combinations, the DVFS management system can use the list of all work tasks, the The corresponding relationship between the expected voltage and the duration corresponding to the task sequence combination and the energy consumption calculation model are calculated to obtain the energy consumption parameters corresponding to the task sequence combination.

Step 207, the DVFS management system determines the combination of target sequences according to multiple energy consumption parameters.

In the embodiment of the present application, the calculation and decision-making unit in the DVFS management system may determine the target task sequence corresponding to the first subsystem according to multiple energy consumption parameters.

It can be understood that, in the embodiment of the present application, after the calculation of the energy consumption parameters corresponding to each task sequence combination is completed, the task sequence combination corresponding to the minimum energy consumption parameter among the multiple energy consumption parameters can be selected to be determined as Combination of target order.

Step 208, the DVFS management system determines the target task sequence of the first subsystem according to the target sequence combination.

In the embodiment of the present application, the calculation and decision-making unit in the DVFS management system may determine the target task sequence corresponding to each first subsystem based on the target sequence combination. In this way, when each subsystem executes subtasks according to the corresponding target task order, the energy consumption of the whole system can be minimized.

Step 209 , the DVFS management system generates a voltage adjustment request according to the corresponding relationship between the expected voltage and the duration corresponding to the target sequence combination.

In the embodiment of the present application, the DVFS management system may first determine the supply voltage for different time periods according to the corresponding relationship between the target sequence combination and the corresponding expected voltage and duration, and then generate a voltage adjustment request according to the supply voltage for different time periods.

It should be noted that, in the embodiment of this application, when generating a voltage adjustment request according to the supply voltage of different time periods, the voltage regulation control unit in the DVFS management system can choose to compress the power supply voltage of different time periods according to the preset compression format. Perform packaging processing to generate a voltage adjustment request, and then transmit the voltage adjustment request to the high-speed data interface.

Step 210, the DVFS management system sends the target task sequence to the first subsystem.

In the embodiment of the present application, the DVFS management system can choose to send the target task sequence to the corresponding first subsystem, so that the first subsystem can execute different subtasks according to the target task sequence.

Step 211, the DVFS management system sends a voltage adjustment request to the power management module.

In the embodiment of the present application, the DVFS management system can then send a voltage adjustment request to the power management module configured on the terminal device, so that the power management module can complete the voltage adjustment process based on the voltage adjustment request.

It should be noted that, in the embodiment of this application, after the voltage adjustment control unit in DVFS management transmits the voltage adjustment request to the high-speed data interface, the high-speed data interface in DVFS management can send the power management module Send a voltage adjustment request.

Step 212, the first subsystem executes the subtasks according to the target task sequence.

Step 213, the power management module performs voltage adjustment processing according to the voltage adjustment request.

In the embodiment of this application, after receiving the voltage adjustment request sent by the baseband chip, the power management module in the terminal device can determine the corresponding power supply voltage for different time periods based on the voltage adjustment request, and then adjust the power supply voltage according to the different time periods. The power supply voltage is adjusted for voltage. Specifically, the power management module can control the real-time output voltage according to the supply voltage in different time periods.

Further, in the embodiment of the present application, assuming that the task management unit in DVFS management obtains the work task list of the first subsystem (subsystem a and subsystem b) as shown in Table 4 and Table 5 respectively, then for the two The first subsystem, the calculation and decision-making unit in the DVFS management system can determine 12 task sequence combinations. Next, when the computing decision-making unit calculates the energy consumption parameters corresponding to each task sequence combination, it can first determine the corresponding relationship between a set of expected voltages and durations corresponding to each task sequence combination. A subsystem corresponds to a load capacitance C.

For example, for task sequence combination 1: the task sequence of subsystem a is subtask a1, subtask a2, subtask a3, and the task sequence of subsystem b is subtask b1, subtask b2, based on Figure 5, joint subsystem a and the voltage demand of subsystem b in the whole period (within 1000us), the corresponding relationship between the expected voltage required by the task sequence combination and the duration can be determined, as shown in Figure 6 above.

Correspondingly, in the embodiment of the present application, Table 6 is Table 1 of energy consumption calculation parameters. As shown in Table 6, for the sequential combination of tasks, based on the correspondence between a corresponding set of expected voltage and duration, each sub The load capacitance C corresponding to the system and the energy consumption calculation model shown in the above formula (1) can be calculated to obtain the energy consumption parameter corresponding to the task sequence combination as 979880.

Table 6

Further, in the embodiment of this application, for task sequence combination 2: the task sequence of subsystem a is subtask a1, subtask a2, subtask a3, and the task sequence of subsystem b is subtask b2, subtask b1 , Figure 12 is the second schematic diagram of task sequence combination, as shown in Figure 12, based on the work task list, the voltage requirements of subsystem a and subsystem b in the entire cycle (within 1000us) can be determined respectively. Figure 13 is the second schematic diagram of the corresponding relationship between expected voltage and duration, as shown in Figure 13, based on Figure 12, combined with the voltage requirements of subsystem a and subsystem b in the entire cycle (within 1000us), the task sequence combination can be determined The correspondence between the desired voltage and duration required.

Correspondingly, in the embodiment of the present application, Table 7 is Table 2 of energy consumption calculation parameters. As shown in Table 7, for the sequential combination of tasks, based on the correspondence between a corresponding set of expected voltage and duration, each sub The load capacitance C corresponding to the system and the energy consumption calculation model shown in the above formula (1) can be calculated to obtain the energy consumption parameter corresponding to the task sequence combination as 921080.

Table 7

It can be seen that by adjusting the task sequence, compared with the task combination sequence 1 shown in Table 6, the energy consumption of the task combination sequence 2 shown in Table 7 can be reduced by 6.38%.

Further, in the embodiment of the present application, FIG. 14 is a schematic diagram three of the corresponding relationship between the expected voltage and the duration. As shown in FIG. 14 , the system power supply strategy voltage waveforms of task combination sequence 1 and task combination sequence 2 can be In contrast, if it is finally determined that the task combination sequence 2 is the target sequence combination among the 12 task sequence combinations, then the DVFS management system can perform voltage adjustment processing according to the corresponding relationship between the expected voltage and the duration of the task combination sequence 2, and at the same time based on The task combination sequence 2 respectively sends the corresponding target task sequence to subsystem a and subsystem b, so that the first subsystem executes the subtasks according to the corresponding target task sequence.

An embodiment of the present application provides a task scheduling method, the task scheduling method is applied to a terminal device, the terminal device is configured with a baseband chip, and the baseband chip includes multiple subsystems and a DVFS management system, wherein the DVFS management system is used to manage one or more Subtasks are sent to one or more first subsystems in multiple subsystems respectively; wherein, the first subsystem is a subsystem that executes subtasks; each first subsystem is used to send subtasks to The DVFS management system sends the expected voltage in the next adjustment period; the DVFS management system is also used to adjust the execution order of one or more subtasks according to the expected voltage of each first subsystem in the next adjustment period, and according to the adjusted The execution sequence of one or more subtasks and the corresponding expected voltage of each first subsystem configure the supply voltage received in the next adjustment cycle. That is to say, in the embodiment of the present application, the DVFS management system configured by the baseband chip of the terminal device can obtain the expected voltage of the subsystem in the next adjustment period, and determine the maximum value of the subtask corresponding to the subsystem based on the expected voltage. Optimal execution sequence, and then control the subsystem to process subtasks according to the execution sequence, and complete voltage adjustment at the same time, so that task scheduling and voltage control can be accurately performed, and the power consumption of the system can be effectively reduced.

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 a plurality of subsystems and a DVFS management system, wherein,

The DVFS management system is configured to issue one or more subtasks to one or more first subsystems among the plurality of subsystems; wherein, the first subsystem is a subtask that executes the subtasks system;

Each first subsystem is configured to send the expected voltage in the next adjustment period to the DVFS management system according to the received subtask;

The DVFS management system is further configured to adjust the execution order of the one or more subtasks according to the expected voltage of each first subsystem in the next adjustment cycle, and according to the adjusted execution order of the one or more subtasks The execution sequence and the expected voltage corresponding to each of the first subsystems configure the supply voltage received in the next adjustment cycle.
The baseband chip according to claim 1, wherein the DVFS management system includes a task management unit,

The task management unit is configured to disassemble the received one or more tasks into the one or more subtasks; issue the one or more subtasks to one or more of the plurality of subsystems respectively the first subsystem.
The baseband chip according to claim 1, wherein the DVFS management system includes a computing decision unit,

The calculation and decision-making unit is configured to adjust the execution order of the one or more subtasks according to the expected voltage of each first subsystem in a next adjustment period.
The baseband chip according to claim 1, wherein the DVFS management system includes a voltage regulation control unit,

The voltage regulation control unit is configured to configure the power supply voltage received in the next adjustment cycle according to the adjusted execution sequence of the one or more subtasks and the expected voltage corresponding to each first subsystem.
The baseband chip according to claim 1, wherein the DVFS management system includes a high-speed data interface,

The high-speed data interface is used to send a voltage adjustment request to the power management module; wherein the power management module is used to provide the power supply voltage for the baseband chip; the voltage adjustment request is used to instruct the power management module Adjust the size of the supply voltage.
The baseband chip according to claim 1, wherein,

The DVFS management system is specifically configured to generate multiple task sequence combinations according to the expected voltage of each first subsystem in the next adjustment period; calculate multiple energy consumption parameters corresponding to the multiple task sequence combinations; according to The plurality of energy consumption parameters adjust the execution sequence of the one or more subtasks.
The baseband chip according to claim 6, wherein,

The DVFS management system is specifically configured to determine the corresponding relationship between multiple sets of expected voltages and duration corresponding to the multiple task sequence combinations; determine the multiple energy consumption according to the corresponding relationship between the multiple groups of expected voltages and duration parameter.
The baseband chip according to claim 7, wherein,

The DVFS management system is specifically configured to: according to the expected voltage of each first subsystem in the next adjustment period, the corresponding relationship between each group of expected voltages and duration corresponding to each task sequence combination, and the energy consumption calculation model, Calculate and obtain the energy consumption parameters corresponding to each task sequence combination.
The baseband chip according to claim 6, wherein,

The DVFS management system is specifically configured to determine the task sequence combination corresponding to the minimum energy consumption parameter among the plurality of energy consumption parameters as a target sequence combination; based on the target sequence combination, the DVFS management system adjusts the one Or the order of execution of multiple subtasks.
A task scheduling method, the task scheduling method is applied to a terminal device, the terminal device is configured with a baseband chip, and the baseband chip includes a plurality of subsystems and a DVFS management system, the method comprising:

The DVFS management system sends one or more subtasks to one or more first subsystems among the plurality of subsystems respectively; wherein, the first subsystem is a subsystem that executes the subtasks;

Each first subsystem sends the expected voltage in the next adjustment period to the DVFS management system according to the received subtasks;

The DVFS management system adjusts the execution order of the one or more subtasks according to the expected voltage of each first subsystem in the next adjustment period, and according to the adjusted execution order and The expected voltage corresponding to each first subsystem configures the supply voltage received in the next adjustment cycle.
The method according to claim 10, wherein the DVFS management system includes a task management unit,

The task management unit disassembles the received one or more tasks into the one or more subtasks; sends the one or more subtasks to one or more first sub-tasks in the plurality of subsystems respectively subsystem.
The method according to claim 10, wherein the DVFS management system includes a computing decision unit,

The calculation and decision-making unit adjusts the execution order of the one or more subtasks according to the expected voltage of each first subsystem in a next adjustment period.
The method according to claim 10, wherein the DVFS management system comprises a voltage regulation control unit,

The voltage regulation control unit configures the power supply voltage received in the next adjustment cycle according to the adjusted execution sequence of the one or more subtasks and the expected voltage corresponding to each first subsystem.
The method according to claim 10, wherein the DVFS management system includes a high-speed data interface,

The high-speed data interface sends a voltage adjustment request to the power management module; wherein the power management module is used to provide the power supply voltage for the baseband chip; the voltage adjustment request is used to instruct the power management module to adjust the The size of the supply voltage.
The method according to claim 10, wherein the DVFS management system adjusts the execution sequence of the one or more subtasks according to the expected voltage of each first subsystem in the next adjustment period, comprising:

The DVFS management system generates multiple task sequence combinations according to the expected voltage of each first subsystem in the next adjustment period;

The DVFS management system calculates multiple energy consumption parameters corresponding to the multiple task sequence combinations;

The DVFS management system adjusts the execution sequence of the one or more subtasks according to the multiple energy consumption parameters.
The method according to claim 15, wherein the DVFS management system calculates multiple energy consumption parameters corresponding to the multiple task sequence combinations, comprising:

The DVFS management system determines the corresponding relationship between multiple sets of expected voltages and durations corresponding to the multiple task sequence combinations;

The DVFS management system determines the multiple energy consumption parameters according to the multiple groups of correspondences between expected voltages and durations.
The method according to claim 16, wherein the DVFS management system determines the multiple energy consumption parameters according to the correspondence between the multiple groups of expected voltages and durations, including:

The DVFS management system calculates and obtains the described The energy consumption parameters corresponding to each task sequence combination.
The method according to claim 15, wherein the DVFS management system adjusts the execution order of the one or more subtasks according to the plurality of energy consumption parameters, comprising:

The DVFS management system determines the task sequence combination corresponding to the minimum energy consumption parameter among the plurality of energy consumption parameters as the target sequence combination;

Based on the target sequence combination, the DVFS management system adjusts the execution sequence of the one or more subtasks.
A terminal device, comprising: a power management module and the baseband chip according to claims 1 to 9, the power management module is used to supply power to the baseband chip.