CN110278601A - A terminal power saving method and device - Google Patents

Abstract

Embodiments of the present invention provide a terminal power saving method and device, which relate to the field of communication, and can reduce power consumption of a terminal by setting a reasonable timeout time of a timer. The method includes: when determining that the terminal enters an idle state, obtaining the service packet lengths of k consecutive historical tasks on the terminal and the timeout time of the activation timers of the k historical tasks; calculating the k historical tasks according to the service packet lengths of the k historical tasks The average business package length of the current task; when the average value of the business package length of the current task is greater than the average business package length of the historical task, the adjustment coefficient is calculated according to the average value of the business package length of the current task and the average business package length of the historical task; The overtime of the activation timer of the task and the adjustment coefficient calculate the overtime of the target activation timer of the current task; start the target activation timer; when the target activation timer expires, determine that the terminal enters the low power consumption mode PSM. The embodiment of the present application is applied to terminal power saving.

Description

A terminal power saving method and device

technical field

Embodiments of the present invention relate to the communication field, and in particular, to a terminal power saving method and device.

Background technique

The narrowband internet of things (NB-Iot) based on the cellular network is an IoT technology based on the evolution of the long term evolution (LTE) standard protocol of the third generation partnership project (3rd generation partnership project, 3GPP). It is mainly for IoT application scenarios with medium and low rates, deep coverage, low power consumption, and large connections. Support enhanced discontinuous reception (eDRX) and low power consumption mode (power saving mode, PSM) and other power saving technologies, so as to reduce the power consumption of the terminal.

PSM is a technology introduced by 3GPP R12. Its principle is that the user terminal and the mobile management entity (mobile management entity, MME) determine an activation timer (T3324 timer) through non-access stratum (non-access stratum, NAS) message negotiation, The active timer is started after the terminal goes idle. On the network side, when the activation timer expires, the MME determines that the terminal enters the PSM, and rejects downlink services and paging to the terminal; on the terminal side, when the activation timer expires, the terminal disables the access stratum (AS) function , such as cell selection, etc., to save power, so that the terminal and the network information about the terminal entering the power saving mode are synchronized. Among them, after the terminal enters the PSM, the terminal side will exit only when the terminal needs to send SMS uplink (mobile original, MO) data, or when the periodic tracking area update (tracking area update, TAU) timer T3412 expires and needs to execute the periodic TAU PSM: On the network side, the time of the terminal in PSM can be controlled by configuring the timeout period of the periodic TAU timer (T3412 timer).

Among them, during the working process of NB-IoT, the terminal and MME negotiate to determine the duration of the activation timer through the non-access stratum message. The duration of the activation timer determined by this method is longer, so that the terminal enters the PSM from the idle state. The duration of the timer is relatively long, and when the terminal consumes a large amount of power and the time for activating the timer is relatively long, it will cause a relatively large power consumption of the terminal.

Contents of the invention

Embodiments of the present invention provide a terminal power saving method and device, which can reduce the power consumption of the terminal by setting a reasonable timeout time of the activation timer.

In the first aspect, a terminal power saving method is provided, which includes the following steps: when determining that the terminal enters an idle state, obtain the service packet length of k consecutive historical tasks on the terminal and the timeout time of the activation timer of the k historical tasks; according to k The business package length of a historical task calculates the average business package length of k historical tasks; when the mean value of the business package length of the current task is greater than the average business package length of the historical task, according to the mean value of the business package length of the current task and the historical task Calculate the adjustment coefficient of the average service packet length, wherein the current task is the task being executed on the terminal; calculate the time-out time of the target activation timer of the current task according to the time-out time and adjustment coefficient of the activation timers of k historical tasks; start the target activation Timer: the target activation timer expires, and it is determined that the terminal enters the low power consumption mode PSM.

In the above scheme, when it is determined that the terminal enters the idle state, the service packet lengths of k consecutive historical tasks and the timeout time of the activation timers of the k historical tasks are obtained on the terminal; k historical tasks are calculated according to the service packet lengths of the k historical tasks The average business package length of the current task; when the average value of the business package length of the current task is greater than the average business package length of the historical task, the adjustment coefficient is calculated according to the average value of the business package length of the current task and the average business package length of the historical task; The overtime of the activation timer of the task and the adjustment coefficient calculate the overtime of the target activation timer of the current task; start the target activation timer; when the target activation timer expires, determine that the terminal enters the low power consumption mode PSM. This application calculates the adjustment coefficient through the service packet length of the task, and then calculates the timeout time of the target activation timer according to the adjustment coefficient, avoiding directly using the terminal and the MME to determine the timeout time of the target activation timer through non-access layer message negotiation, so that The timeout time of the target activation timer is set more reasonably, so as to ensure that the terminal switches from the idle state to the PSM as soon as possible, and reduces the power consumption of the terminal.

In a second aspect, a terminal power-saving device includes: an acquisition module, configured to acquire the service packet length of k consecutive historical tasks on the terminal and the timeout time of the activation timer of the k historical tasks when determining that the terminal enters an idle state; The calculation module is used to calculate the average service package length of k historical tasks acquired by the acquisition module according to the service package length of k historical tasks; the calculation module is also used to determine that the average value of the service package length of the current task is greater than the average service of the historical task When the package is long, the adjustment coefficient is calculated according to the average value of the service package length of the current task and the average service package length of the historical task, wherein the current task is the task being executed on the terminal; the calculation module is also used to activate according to k historical tasks The overtime period and adjustment coefficient of the timer calculate the overtime period of the target activation timer of the current task; the start module is used to start the target activation timer; the determination module is used for the target activation timer timeout and determines that the terminal enters the low power consumption mode PSM .

In the third aspect, a terminal power saving device is provided, including a communication interface, a processor, a memory, and a bus; the memory is used to store computer execution instructions, the processor and the memory are connected through the bus, and when the terminal power saving device is running, the processor executes The computer execution instructions stored in the memory enable the terminal power saving device to execute the above terminal power saving method.

In a fourth aspect, a computer storage medium is provided, including instructions, and when the instructions are run on a computer, the computer is made to execute the above terminal power saving method.

According to a fifth aspect, a computer program product is provided, the computer program product includes instruction codes, and the instruction codes are used to execute the above-mentioned terminal power saving method.

It can be understood that any terminal power-saving device, computer storage medium, or computer program product provided above is used to execute the method corresponding to the first aspect provided above, and therefore, the beneficial effects that it can achieve can refer to the above The beneficial effects of the method in the first aspect of the paper and the corresponding solutions in the specific implementation manners below will not be repeated here.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1 is a schematic diagram of a NB-IoT network architecture provided by an embodiment of the present invention;

FIG. 2 is a schematic diagram of a three-state switching process in an NB-IoT network provided by an embodiment of the present invention;

FIG. 3 is a schematic diagram of a terminal power saving method provided by an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a terminal power-saving device provided by an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a terminal power saving device provided by another embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

NB-IoT is built on the cellular network, supports upgrade and evolution on the existing LTE network, can make full use of the operator's existing spectrum resources, and improve spectrum utilization; because NB-IoT is based on a business model with low speed and low service frequency. , so it can support a large number of users; it also supports power-saving technologies such as eDRXPSM, which can reduce the power consumption of terminals. The NB-IoT network architecture is shown in Figure 1, including a terminal 11, a base station (eNodeB), an IoT core network 13, an IoT platform 14, and an application server 15, where the base station (eNodeB) includes a first base station (eNodeB1) 121 and a second base station (eNodeB2)122. The terminal 11 is connected to the base station through the air interface; the base station is mainly responsible for air interface access processing, cell management and other related functions, and is connected to the IoT core network 13 through the S1-lite interface; the IoT core network 13 is responsible for interacting with the non-access layer of the terminal 11 function, and forward the IoT service data to the IoT platform 14 for processing; the IoT platform 14 aggregates the IoT service data obtained from various access networks, and forwards the IoT service data to the corresponding service application server 15 for processing according to different types of IoT service data; The application server 15 is the final gathering point of IoT business data, and performs operations such as data processing according to the needs of customers.

In the default state of NB-IoT, there are three working states. The switching process of the three states in the NB-IoT network is shown in Figure 2, including: connected (connected) state: after the terminal is registered and connected to the network, it is in the connected state and can send and receive Data, when there is no data interaction, the inactivity timer is turned on, and when the inactivity timer times out, that is, after there is no data interaction in the connection state for a period of time, it enters the idle (Idle) state, where the timeout period of the inactivity timer Configurable. Idle state: Data can be sent and received, and it will enter the connected state when receiving downlink data. When entering the Idle state, the activation timer (T3324) is turned on, and the periodic TAU timer (T3412) is turned on. When the activation timer times out, that is, Idle After there is no data interaction in the state for a period of time, it enters the PSM, where the timeout period of the activation timer is configurable. PSM: In this state, the terminal turns off the transceiver and does not listen to the paging on the wireless side. Therefore, although it is still registered in the network, the signaling cannot be reached, the downlink data cannot be received, and the power is very small. When the periodic TAU timer expires or the terminal When there is MO data to be transmitted, it enters the connected state.

In the three-state switching process in the NB-IoT network, the timeout period of the activation timer is determined by the terminal and the MME through non-access stratum message negotiation. The duration of the activation timer determined by this method is longer, so that the time for the terminal to enter the PSM from the idle state is longer, and when the terminal consumes a lot of power and the duration of the activation timer is longer, it will cause the terminal to be larger. power consumption. For example, to calculate power consumption by taking k tasks as a group: Among them, when the terminal is doing task n, in the connection state: Pm_n represents the power consumption of the terminal in the connection state, Tm_n represents the duration of the terminal in the connection state; in the idle state: P_idle_n represents the power consumption of the terminal in the idle state, T_idle_n represents the terminal in the idle state The duration of the idle state; in PSM: P_psm_n represents the power consumption of the terminal in PSM, T_psm_n represents the duration of the terminal in PSM; in the wake-up state (that is, the terminal wakes up from PSM): P_wake_n represents the power consumption of the terminal in the wake-up state, T_wake_n represents the terminal in the wake-up state The duration of the awake state.

Based on the above-mentioned NB-IoT network architecture and the switching process of the three working states under the NB-IoT network, this application provides a terminal power saving method, which is applied to the network side device, as shown in Figure 3, and specifically includes the following steps:

301. When it is determined that the terminal enters an idle state, acquire the service packet lengths of k consecutive historical tasks and the timeout time of the activation timers of the k historical tasks on the terminal.

The terminal is in the connected state after registering and joining the network. When a task is in progress, it is responsible for sending and receiving data. When the timer expires, the network-side device sends an inactivity timer time-out message to the terminal, and the terminal enters the idle (Idle) state, that is, the terminal enters the idle (Idle) state after there is no data interaction in the connection state for a period of time, and the network-side device Start the periodic TAU timer (T3412).

Obtain the service packet length of k consecutive historical tasks on the terminal and the timeout time of the activation timers of the k historical tasks. Preferably, within a period of time before the current task, the business packet length of the historical task executed on the terminal and the timeout time of the activation timer of the historical task are obtained, for example, within a period of time before the current task, the terminal executed 10 For historical tasks, the same activation timer is used, then k=10; for another example, if 10 historical tasks have been executed on the terminal before the current task, 3 historical tasks are configured as the first Activation timer, and the other 7 tasks are configured as the second activation timer, then select the number of historical tasks executed closest to the current moment as k value, and obtain the timeout time of the configured activation timer.

Wherein, the initial value of the timeout time of the activation timer is determined through negotiation between the terminal and the mobility management entity MME through non-access stratum messages.

302. Calculate the average service package length of the k historical tasks according to the service package lengths of the k historical tasks.

Further, according to the formula Calculate the average business packet length of k historical tasks, where k represents the number of historical tasks, packet_average represents the average business packet length of historical tasks, and packet_n represents the business packet length of the nth historical task.

303. When it is determined that the average value of the service package length of the current task is greater than the average service package length of the historical tasks, an adjustment coefficient is calculated according to the average value of the service package length of the current task and the average service package length of the historical tasks.

The current task is the task being executed on the terminal. For example, when k is 10, after the 10th task is executed, the previous 9 completed tasks are historical tasks. If there is one task currently being executed, the current task It is the 11th task, if there are three tasks currently being executed, then the current task is the 11th-13th task, wherein, this application does not provide for the counting method of tasks executed in parallel.

Further, the adjustment coefficient is calculated according to the formula M=(packet_k ₊₁ -packet_average)/packet_average/a%, wherein, packet_k ₊₁ represents the average value of the service packet length of the current task, for example, there is one task currently being executed, It is the business package length of the task. If there are three tasks currently being executed, the average value of the business package lengths of the current tasks is taken. packet_average indicates the average business packet length of historical tasks, M is an integer, where M is rounded down, for example, if the calculation result of M is 3.7, it is rounded down to 3; a is a constant, for example, a can be 10 .

Further, when it is determined that the average value of the service packet length of the current task is less than or equal to the average service packet length of the historical task, the target activation timer of the current task is started, wherein the current task is a task being executed on the terminal, and the target activation timer The timeout period is set to the timeout period of the activation timers of k historical tasks, for example, the timeout period of the activation timers of k historical tasks is 15s, the service package length of the current task is 20 bytes, and the average service package length of historical tasks When it is 25 bytes, the timeout time of the target activation timer of the current task is set as the timeout time of the activation timers of k historical tasks is 15s.

304. Calculate the timeout time of the target activation timer of the current task according to the timeout time of the activation timers of the k historical tasks and the adjustment coefficient.

Further, calculate the overtime of the target activation timer of the current task according to the formula Timer_k+1=Timer_k-M*Tstep, wherein, Timer_k+1 represents the timeout of the target activation timer, and Timer_k represents the activation timers of k historical tasks M represents the adjustment coefficient, and Tstep represents the minimum step size of the adjusted time-out time of the target activation timer.

When Timer_k+1≤0, adjust the adjustment coefficient M so that the timeout time Timer_k+1 of the target activation timer takes the minimum value greater than 0, for example, Timer_k=20s, M=3, Tstep=7, then calculate Timer_k+1 =Timer_k-M*Tstep=20-21=-1, adjust the adjustment coefficient so that M takes 2, then you can get Timer_k+1=Timer_k-M*Tstep=20-14=6s, therefore, the target activates the timer The timeout period of T3324 is adjusted to 6s.

305. Start a target activation timer.

306. The target activation timer times out, and it is determined that the terminal enters a low power consumption mode PSM.

The network-side device determines that the target activation timer has expired, and sends the target activation timer time-out information to the terminal. The terminal enters the PSM after receiving the information. Although it is still registered in the network, the signaling is unreachable, the downlink data cannot be received, and the power is very low; on the network side, when the target activation timer expires, the MME determines that the terminal enters the PSM, and rejects the downlink service and paging of the terminal. In this way, the information about the terminal entering the power saving mode is synchronized with the network. The network side device determines that the periodic TAU timer expires, and sends the periodic TAU timer timeout information to the terminal. When the terminal receives the periodic TAU timer timeout information or the terminal has MO data to be transmitted, the terminal will re-enter the connection state. Among them, the network side The device can control the terminal's time in PSM by configuring the timeout period of the periodic TAU timer (T3412 timer).

In the above scheme, when it is determined that the terminal enters the idle state, the service packet lengths of k consecutive historical tasks and the timeout time of the activation timers of the k historical tasks are obtained on the terminal; k historical tasks are calculated according to the service packet lengths of the k historical tasks The average business package length of the current task; when the average value of the business package length of the current task is greater than the average business package length of the historical task, the adjustment coefficient is calculated according to the average value of the business package length of the current task and the average business package length of the historical task; The overtime of the activation timer of the task and the adjustment coefficient calculate the overtime of the target activation timer of the current task; start the target activation timer; when the target activation timer expires, determine that the terminal enters the low power consumption mode PSM. This application calculates the adjustment coefficient through the service packet length of the task, and then calculates the timeout time of the target activation timer according to the adjustment coefficient, avoiding directly using the terminal and the MME to determine the timeout time of the target activation timer through non-access layer message negotiation, so that The timeout time of the target activation timer is set more reasonably, so as to ensure that the terminal switches from the idle state to the PSM as soon as possible, and reduces the power consumption of the terminal.

When using functional modules to implement the above terminal power saving method, as shown in FIG. 4, an embodiment of the present invention provides a terminal power saving device for implementing the above terminal power saving method. Of course, the terminal shown in FIG. The functional module division provided by the power saving device is only an example, and it is also feasible to divide the functional modules in other forms. The terminal power saving device is applied to the network side device, which can be the network side device itself or a chip or chip on it. functional entity. Specifically, including:

Obtaining module 41, is used for determining that terminal enters idle state, obtains the service package length of continuous k historical tasks on the terminal and the overtime of the activation timer of described k historical tasks; Calculation module 42, is used for according to the The service package length of the k historical tasks is calculated by the average service package length of the k historical tasks acquired by the acquisition module 41; the calculation module 42 is also used to determine that the average value of the service package length of the current task is greater than the When the average service package length of the historical task is calculated, the adjustment coefficient is calculated according to the average value of the service package length of the current task and the average service package length of the historical task, wherein the current task is a task being executed on the terminal; The calculation module 42 is also used to calculate the time-out time of the target activation timer of the current task according to the time-out time of the activation timers of the k historical tasks and the adjustment coefficient; the start-up module 43 is used to start the target An activation timer; a determination module 44, configured to determine that the terminal enters a low power consumption mode PSM when the target activation timer expires.

Optionally, the calculation module 42 is specifically used to calculate according to the formula Calculate the average service packet length of the k historical tasks, where k represents the number of the historical tasks, packet_average represents the average service packet length of the historical tasks, and packet_n represents the service packet length of the nth historical task.

The calculation module 42 is specifically used to calculate the adjustment coefficient according to the formula M=(packet_k ₊₁ -packet_average)/packet_average/a%, wherein, packet_k ₊₁ represents the average value of the business packet length of the current task, packet_average indicates the average service packet length of the historical task, M is an integer, and a is a constant.

Optionally, the calculation module 42 is specifically configured to calculate the timeout time of the target activation timer of the current task according to the formula Timer_k+1=Timer_k-M*Tstep, wherein Timer_k+1 represents the timeout of the target activation timer Time, Timer_k represents the timeout time of the activation timers of the k historical tasks, M represents the adjustment coefficient, and Tstep represents the minimum step size of the adjustment timeout time of the target activation timer.

Optionally, the calculation module 42 is specifically configured to adjust the adjustment coefficient M so that the timeout time Timer_k+1 of the target activation timer takes a minimum value greater than 0 when Timer_k+1≤0.

Optionally, the starting module 43 is further configured to start the target activation timer of the current task when it is determined that the average value of the service package length of the current task is less than or equal to the average service package length of the historical task, wherein , the current task is the task being executed on the terminal, and the timeout time of the target activation timer is set as the timeout time of the activation timers of k tasks.

Optionally, the initial value of the timeout time of the activation timer is determined by the terminal and the mobility management entity MME through non-access stratum message negotiation.

In the case of using an integrated module, the terminal power saving device includes: a storage unit, a processing unit and an interface unit. The processing unit is used to control and manage the actions of the terminal power saving device. The interface unit is used for information exchange between the terminal power saving device and other devices. The storage unit is used for storing program codes and data of the terminal power saving device.

Wherein, the processing unit is a processor, the storage unit is a memory, and the interface unit is a communication interface as an example. 5 , the terminal power saving device includes a communication interface 501 , a processor 502 , a memory 503 and a bus 504 . The communication interface 501 and the processor 502 are connected to the memory 503 through the bus 504 .

The processor 502 can be a general-purpose central processing unit (Central Processing Unit, CPU), a microprocessor, a specific application integrated circuit (Application-Specific Integrated Circuit, ASIC), or one or more for controlling the execution of the application program program integrated circuit.

The memory 503 may be a read-only memory (Read-Only Memory, ROM) or other types of static storage devices that can store static information and instructions, and a random access memory (Random Access Memory, RAM) or other types that can store information and instructions It can also be an electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-only Memory, EEPROM), a CD-ROM (Compact Disc Read-Only Memory, CD-ROM) or other optical disk storage, optical disk storage ( including compact discs, laser discs, optical discs, digital versatile discs, blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be stored by a computer Any other medium, but not limited to. The memory can exist independently and be connected to the processor through the bus. Memory can also be integrated with the processor.

Wherein, the memory 503 is used to store the application program code for executing the solution of the present application, and the execution is controlled by the processor 502 . The communication interface 501 is used for information exchange with other devices, for example, supporting information exchange between the terminal power saving device and other devices, for example, acquiring data from other devices or sending data to other devices. The processor 502 is configured to execute the application code stored in the memory 503, so as to implement the method described in the embodiment of the present application.

In addition, a computing storage medium (or medium) is also provided, including instructions for performing the method operations performed by the terminal power saving device in the above embodiments when executed. In addition, a computer program product including the above computing storage medium (or medium) is also provided.

Wherein, all relevant content of each step involved in the above method embodiment can be referred to the function description of the corresponding function module, and its function will not be repeated here.

It should be understood that in various embodiments of the present invention, the sequence numbers of the above-mentioned processes do not mean the order of execution, and the execution order of each process should be determined by its functions and internal logic, rather than by the embodiment of the present invention. The implementation process constitutes any limitation.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present invention.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (English full name: read-only memory, English abbreviation: ROM), random access memory (English full name: random access memory, English abbreviation: RAM), magnetic Various media that can store program codes such as discs or optical discs.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (17)

1. a kind of terminal power saving method, which is characterized in that

When determining that terminal enters idle state, the business packet length for obtaining continuous k historic task in the terminal is gone through with the k The time-out time of the Active Timer of history task；

It is long according to the long average traffic packet for calculating the k historic task of the business packet of the k historic task；

When determining that the long mean value of the business packet of current task is long greater than the average traffic packet of the historic task, according to described current The average traffic packet of the long mean value of the business packet of task and the historic task is long to calculate regulation coefficient, wherein described current Task is being carrying out in terminal for task；

The current task is calculated according to the time-out time of the Active Timer of the k historic task and the regulation coefficient The time-out time of target Active Timer；

Start the target Active Timer；

The target Active Timer time-out, determines that the terminal enters low-power consumption mode PSM.

2. terminal power saving method according to claim 1, which is characterized in that according to the business packet of the k historic task The long average traffic packet for calculating the k historic task is long, comprising:

According to formulaCalculate the average traffic of the k historic task Packet length, wherein k indicates the number of the historic task, and packet_average indicates the average traffic packet of the historic task Long, packet_n indicates that the business packet of n-th of historic task is long.

3. terminal power saving method according to claim 1, which is characterized in that long according to the business packet of the current task The average traffic packet of mean value and the historic task is long to calculate regulation coefficient, comprising:

According to formula M=(packet__k+1- packet_average)/packet_average/a% calculating the regulation coefficient, Wherein, packet__k+1Indicate the long mean value of the business packet of the current task, packet_average indicates the historic task Average traffic packet it is long, M round numbers, a takes constant.

4. terminal power saving method according to claim 1, which is characterized in that fixed according to the activation of the k historic task When device time-out time and the regulation coefficient calculate the current task target Active Timer time-out time, comprising:

The time-out of the target Active Timer of the current task is calculated according to formula Timer_k+1=Timer_k-M*Tstep Time, wherein Timer_k+1 indicates that the time-out time of target Active Timer, Timer_k indicate the k historic task The time-out time of Active Timer, M indicate that the regulation coefficient, Tstep indicate the adjustment time-out of the target Active Timer The minimum step of time.

5. terminal power saving method according to claim 4, which is characterized in that according to formula Timer_k+1=Timer_k- M*Tstep calculates the time-out time of the target Active Timer of the current task, comprising:

As Timer_k+1≤0, adjusting the regulation coefficient M makes the time-out time Timer_k+1 of the target Active Timer Take the minimum value greater than 0.

6. terminal power saving method according to claim 1, which is characterized in that further include:

When determining that the long mean value of the business packet of the current task is long less than or equal to the average traffic packet of the historic task, open Move the target Active Timer of the current task, wherein the current task is being carrying out in terminal for task, the mesh The time-out time of mark Active Timer is set as the time-out time of the Active Timer of the k historic task.

7. terminal power saving method according to claim 1-6, which is characterized in that

The initial value of the time-out time of the Active Timer is assisted by terminal and mobile management entity MME by non-access layer information Quotient determines.

8. a kind of terminal power saving device, which is characterized in that

Module being obtained, when for determining that terminal enters idle state, obtaining the business packet of continuous k historic task in the terminal The time-out time of long and the k historic task Active Timer；

Computing module, for being gone through according to the long k for calculating the acquisition module acquisition of the business packet of the k historic task The average traffic packet of history task is long；

The computing module is also used to determine that the long mean value of the business packet of current task is greater than the average traffic of the historic task When wrapping long, adjustment is calculated according to the average traffic packet of the long mean value of the business packet of the current task and the historic task is long Coefficient, wherein the current task is being carrying out in terminal for task；

The computing module is also used to according to the time-out time of the Active Timer of the k historic task and adjustment system Number calculates the time-out time of the target Active Timer of the current task；

Starting module, for starting the target Active Timer；

Determining module determines that the terminal enters low-power consumption mode PSM for the target Active Timer time-out.

9. terminal power saving device according to claim 8, which is characterized in that

The computing module is specifically used for according to formulaCalculate the k The average traffic packet of a historic task is long, wherein k indicates the number of the historic task, described in packet_average expression The average traffic packet of historic task is long, and packet_n indicates that the business packet of n-th of historic task is long.

10. terminal power saving device according to claim 8, which is characterized in that

The computing module is specifically used for according to formula M=(packet__k+1-packet_average)/packet_ Average/a% calculates the regulation coefficient, wherein packet__k+1Indicate the long mean value of the business packet of the current task, Packet_average indicates that the average traffic packet of the historic task is long, and M round numbers, a takes constant.

11. terminal power saving device according to claim 8, which is characterized in that

The computing module, specifically for calculating the current task according to formula Timer_k+1=Timer_k-M*Tstep The time-out time of target Active Timer, wherein Timer_k+1 indicates the time-out time of target Active Timer, Timer_k table Show that the time-out time of the Active Timer of the k historic task, M indicate that the regulation coefficient, Tstep indicate that the target swashs The minimum step of the adjustment time-out time of active timer.

12. terminal power saving device according to claim 11, which is characterized in that

The computing module is specifically used for as Timer_k+1≤0, and adjusting the regulation coefficient M makes the target activation timing The time-out time Timer_k+1 of device takes the minimum value greater than 0.

13. terminal power saving device according to claim 8, which is characterized in that

The starting module is also used to determine that the long mean value of the business packet of the current task is less than or equal to the historic task Average traffic packet it is long when, start the target Active Timer of the current task, wherein the current task be terminal on just In the task of execution, the time-out time of the target Active Timer is set as the Active Timer of the k historic task Time-out time.

14. according to the described in any item terminal power saving devices of claim 8-13, which is characterized in that

The initial value of the time-out time of the Active Timer is assisted by terminal and mobile management entity MME by non-access layer information Quotient determines.

15. a kind of terminal power saving device, which is characterized in that including communication interface, processor, memory, bus；The memory For storing computer executed instructions, the processor is connect with the memory by the bus, when the terminal power saving When device is run, the processor executes the computer executed instructions of the memory storage, so that the terminal power saving device Execute such as the described in any item terminal power saving methods of claim 1-7.

16. a kind of computer storage medium, including instruction, which is characterized in that when described instruction is run on computers, so that The computer executes such as the described in any item terminal power saving methods of claim 1-7.

17. a kind of computer program product, which is characterized in that the computer program product includes instruction code, described instruction Code is for executing such as the described in any item terminal power saving methods of claim 1-7.