WO2019015391A1

WO2019015391A1 - Power saving policy adjustment method, apparatus and system, and storage medium

Info

Publication number: WO2019015391A1
Application number: PCT/CN2018/088271
Authority: WO
Inventors: 刘西亮; 叶敏雅; 刘俊羿; 孙猛
Original assignee: 中兴通讯股份有限公司
Priority date: 2017-07-17
Filing date: 2018-05-24
Publication date: 2019-01-24
Also published as: CN109429309A

Abstract

Provided are a power saving policy adjustment method, apparatus and system, and a storage medium, wherein the method comprises: a network side of the Internet of Things sending a notification message to a terminal to trigger the terminal to adjust a power saving policy when the power saving policy of the network side changes.

Description

Power saving strategy adjustment method, device and system, storage medium

Cross-reference to related applications

The present application is based on a Chinese patent application filed on Jan. 17, 2017, the entire disclosure of which is hereby incorporated by reference.

Technical field

The present application relates to the field of narrowband Internet of Things, and in particular, to a power saving policy adjustment method, apparatus and system, and storage medium.

Background technique

Technical standards defined cellular-based narrowband Internet of Things (Narrow Band Internet of Things, NB -IoT) by the 3rd Generation Partnership Project ^{(3 rd Generation Partnership Project, 3GPP} ). It is a narrowband RF technology designed for the Internet of Things. It is characterized by wide connection, low power consumption, low cost, low movement and deep coverage. It is suitable for IoT applications such as sensing, metering and monitoring. It is also suitable for intelligent meter reading, intelligent parking, intelligent agriculture, forestry, animal husbandry and fishery and intelligence. Wear, smart family, smart community and other fields.

Among them, the low power consumption is mainly for the use of batteries with power-constrained batteries, the inability to replace batteries, or the cost-changing scenarios (for example, sensory monitoring in harsh environments, wildlife tracking), and the use of batteries. Lifetime determines the life cycle of the sensor. Therefore, the terminal must have ultra-low power consumption. Usually, the standby time is generally more than 5 years.

For the ultra-low power consumption requirements of the narrowband Internet of Things, the 3GPP system introduces Power Saving Mode (PSM) and extended idle mode DRX (eDRX) power saving technologies, which save power. The principle is similar, that is, the terminal turns off the wireless receiving unit in a part of the time period in a standby state, and enters a deep sleep state (similar to shutdown, and the terminal is temporarily unreachable), thereby achieving a substantial power saving purpose. The main difference between the PSM and eDRX power-saving technologies is that they have different durations after entering the power-saving state, the PSM has a longer duration, and the eDRX has a shorter duration, which is suitable for different communication cycles in different applications.

For the PSM power saving technology, refer to FIG. 1. In the attach or tracking area update process, the terminal (User Equipment, UE) and the Mobile Management Entity (MME) negotiate an active timer (Active Timer) and a periodic tracking area update timer. The duration (Periodic TAU Timer), the UE enters the idle state (ie, IDLE state, in this state, there is no data interaction between the UE and the network). The time is divided into two segments: the first segment is the active time that the paging is reachable, and the remaining time. The terminal is in a power saving state in which the paging is temporarily unreachable.

Referring to FIG. 2, the eDRX power saving technology is similar to the PSM. In the attach or tracking area update process, the UE and the MME negotiate eDRX Cycle (extended idle mode discontinuous reception period) and PTW (paging time window), and the UE enters the IDLE state. The time is divided into several time periods by eDRX Cycle, and is divided into two segments in each eDRX Cycle: the first segment is the PTW duration that is reachable by the paging, and the remaining time terminal is in the temporary unreachable power saving of paging. status.

As shown in Figure 3, the negotiation process of the power saving parameters in the attach or tracking area update process is as follows:

Step 101: The UE carries the requested power saving parameter in an Attach Request message or a Tracking Area Update Request (TAU Request) message (for the PSM, the power saving parameter includes an active timer and an optional periodic tracking area update timing. For eDRX, the power saving parameters include eDRX Cycle and PTW), requesting power saving.

Step 102: The MME completes the power saving parameter negotiation. The power saving parameter negotiated by the MME may be derived from the local configuration of the MME, the Home Subscriber Server (HSS) subscription information, or other manners, in an Attach Accept message or a TAU Accept (Trace Area Update Acceptance). The message includes the negotiated power saving parameter, and the UE enables the power saving function based on receiving the negotiated power saving parameter.

Since the enabling of the power saving function and the parameter negotiation are initiated by the terminal (UE) through an Attach or Tracking Area Update (TAU) process, the network side cannot control when the terminal initiates the attach process or the tracking area update process.

If the terminal has negotiated the power-saving parameters and does not initiate the attach or tracking area update process, and the network side detects that the power-saving parameters have changed, the changed power-saving parameters are always unable to notify the terminal, which may affect the normal application of the Internet of Things. Expand.

Taking smart meter reading as an example, the original meter reading is 1 time, and the power saving period is set to 1 day when the MME allocates a power saving strategy. Due to the needs of business development, the frequency of meter reading is changed from the original 1 day to the half-day meter reading. If the terminal's power saving strategy (power saving parameter) is not adjusted, then the meter reading system requests the terminal to report the data every half day. At the time, the terminal has half the probability of being in a power-saving state and cannot receive the network command. If the terminal has not initiated the TAU process, the power saving parameter has not been adjusted, and the meter reading system will not work normally.

In addition, if the terminal supports the power saving function, it is not actively turned on for some reason. If the network side determines that the terminal can enable the power-saving function, but no network side can actively trigger the channel that negotiates with the terminal to open the power-saving function, the service life of the terminal may be greatly reduced.

It can be seen that the existing PSM and eDRX power-saving functions may not be actively enabled or dynamically adjust the power-saving parameters of the terminal, which may result in a decrease in the service life of the terminal or affect the normal IoT service.

Summary of the invention

The present invention provides a power saving policy adjustment method, device and system, and a storage medium, to at least solve the related art, because the network side of the Internet of Things cannot actively activate or flexibly adjust the power saving parameters of the terminal, which may result in a decrease in the service life of the terminal or A problem that affects the normal IoT business.

According to an aspect of the present application, a power saving policy adjustment method is provided, including: when a network side power saving policy of an Internet of Things changes, the network side sends a notification message to the terminal to trigger the terminal to adjust a power saving policy.

In an embodiment of the present application, the notification message carries at least one of the following: a power saving parameter, a power saving function enabling identifier, and a power saving policy adjustment indication.

In an embodiment of the present application, the power saving parameter includes at least one of the following: a power saving mode parameter, and an extended idle mode discontinuous receiving parameter.

In an embodiment of the present application, the power saving mode parameter includes at least one of the following: an active timer duration, and a periodic tracking area update timer duration.

In an embodiment of the present application, the extended idle mode discontinuous reception parameter includes at least one of the following: an extended idle mode discontinuous reception period, and a paging time window duration.

In an embodiment of the present application, the network side sends a notification message to the terminal by using at least one of the following: the mobility management entity on the network side sends the notification message to the terminal; The mobility management entity sends the notification message to the terminal through a base station; the Internet of Things application sends the notification message to the terminal.

According to another aspect of the present application, a power saving policy adjustment method is provided, including: receiving, by a terminal, a notification message sent by a network side of an Internet of Things; and determining, by the terminal, a power saving policy of the terminal according to the notification message.

In an embodiment of the present application, the terminal, according to the notification message, adjusts a power saving policy of the terminal, including at least one of the following: the terminal uses a power saving parameter carried in the notification message; And the power saving function of the terminal is enabled according to the power saving function enabled identifier carried in the notification message; the terminal initiates a power saving parameter negotiation process according to the power saving policy adjustment instruction carried in the notification message, to adjust the terminal Power saving parameters.

In an embodiment of the present application, the notification message further carries a re-attachment indication, and the terminal initiates a re-attach procedure according to the notification message to renegotiate the power-saving parameter.

According to still another aspect of the present application, a power saving policy adjusting apparatus is provided, which is located at a network side of the Internet of Things, and includes: a sending module configured to change a network side power saving policy of the Internet of Things, and send a notification message to the terminal to trigger The terminal adjusts a power saving policy.

In an embodiment of the present application, the device is an MME mobility management entity.

According to still another aspect of the present application, a terminal is provided, including: a receiving module configured to receive a notification message sent by a network side of the Internet of Things; and an adjustment module configured to adjust a power saving policy of the terminal according to the notification message .

In an embodiment of the present application, the adjustment module includes: a first execution unit configured to use a power saving parameter carried in the notification message; and a second execution unit configured to perform, according to the section carried in the notification message The electrical function enablement identifier enables the power saving function of the terminal; the third execution unit is configured to initiate a power saving parameter negotiation process according to the power saving policy adjustment instruction carried in the notification message, to adjust the power saving parameter of the terminal.

According to still another aspect of the present application, a computer storage medium is provided, wherein computer executable instructions are stored, the computer executable instructions being configured to perform the power saving policy adjustment method described above.

In the foregoing embodiment of the present application, the network side can actively trigger the terminal to enable or adjust the power saving parameter, ensure the stability of the Internet of Things application while saving power, extend the service life of the terminal, and improve the service experience of the user.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the present application, and are intended to be a part of this application. In the drawing:

1 is a schematic diagram of a PSM power saving technology according to the related art;

2 is a schematic diagram of an eDRX power saving technology according to the related art;

3 is a flow chart of a power saving parameter negotiation in an attach or tracking area update process according to the related art;

4 is a flowchart of a power saving policy adjustment method according to an embodiment of the present application;

5 is a flow chart of adjusting power saving parameters according to an alternative embodiment 1 of the present application;

6 is a flow chart of adjusting power saving parameters according to an alternative embodiment 2 of the present application;

7 is a flow chart of adjusting power saving parameters according to an alternative embodiment 3 of the present application;

8 is a flow chart of adjusting power saving parameters according to an alternative embodiment 4 of the present application;

9 is a flow chart of adjusting power saving parameters according to an alternative embodiment 5 of the present application;

10 is a flow chart of adjusting power saving parameters according to an alternative embodiment 6 of the present application;

11 is a flow chart of adjusting power saving parameters according to an alternative embodiment 7 of the present application;

12 is a flow chart of adjusting power saving parameters according to an alternative embodiment 8 of the present application;

13 is a flow chart of adjusting power saving parameters according to an alternative embodiment 9 of the present application;

FIG. 14 is a schematic structural diagram of a power saving strategy adjusting apparatus according to an embodiment of the present application; FIG.

FIG. 15 is a schematic structural diagram of a power saving policy adjustment system according to an embodiment of the present application.

Detailed ways

The present application will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or order.

In this embodiment, a power saving policy adjustment method is provided. FIG. 4 is a flowchart of a power saving policy adjustment method according to an embodiment of the present application. As shown in FIG. 4, the process includes the following steps:

In step S402, the network side of the Internet of Things senses that the power saving policy changes, and the change of the power saving policy may be a change of a power saving parameter or a change of a power saving period.

Step S404, the network side sends a notification message to the terminal to trigger the terminal to adjust the power saving policy.

Through the above steps, the network side can actively trigger the terminal to enable or adjust the power saving parameters, ensure the stability of the Internet of Things application while saving power, extend the service life of the terminal, and improve the user experience.

In another preferred embodiment, the notification message directly carries the power saving policy or carries the power saving policy adjustment indication, and the terminal initiates the power saving parameter negotiation process immediately after receiving the indication.

In another preferred embodiment, the power saving policy includes a power saving function enabling indicator or an adjusted power saving parameter, for example, including a PSM power saving parameter and an eDRX power saving parameter, wherein the PSM power saving parameter includes an active timer and The selected periodic tracking area update timer, eDRX power saving parameters include eDRX Cycle and PTW.

The present application is described in detail below by the following examples.

Example 1:

In this embodiment, the NAS signaling is used to notify the terminal to adjust the power saving parameter when the connection is established. As shown in FIG. 5, the method includes the following steps:

Step 501: The UE has enabled the power saving function, and the MME detects that the power saving policy is changed, and prepares to adjust the power saving parameter of the terminal, and the user is in an idle state.

Step 502: The MME sends a paging message (Paging) to the UE, requesting the UE to establish a connection.

Step 503: The UE sends a service request message (Service Request) to the MME.

Step 504: The service request acceptance message (Service Accept) sent by the MME to the UE includes the adjusted power saving parameter. Specifically, the PSM power saving parameters include: an active timer (Active Timer) and a periodic tracking area update timer (Periodic RAU/TAU Timer); the eDRX power saving parameters include: eDRX Cycle and PTW;

Step 505: The UE uses the adjusted power saving parameter.

Example 2:

In this embodiment, the NAS signaling triggers the terminal to enable the power saving function or adjust the power saving parameter through connection establishment. As shown in Figure 6, the following steps are included:

Step 601: The MME detects that the power saving policy is changed, and prepares to adjust the power saving parameter of the terminal, and the user is in an idle state.

Step 602: The MME sends a Paging to the UE, requesting the UE to establish a connection.

Step 603: The UE sends a Service Request to the MME.

Step 604: The Service Accept sent by the MME to the UE includes a power saving policy adjustment indication, and instructs the UE to enable the power saving function or adjust the power saving parameter.

Step 605: The UE immediately initiates a TAU process and renegotiates power saving parameters.

Example 3:

In this embodiment, the terminal is notified by the NAS signaling in the connected state to adjust the power saving parameter. As shown in Figure 7, the following steps are included:

Step 701: The UE has enabled the power saving function, and the MME detects that the power saving policy changes, and prepares to adjust the power saving parameter of the terminal, and the user is in the connected state.

[Correct according to Rule 91 19.07.2018]
Step 702: The MME sends an EMM Information to the UE, where the EMM Information includes the adjusted power saving parameter. Specifically, the PSM power saving parameters include: an active timer (Active Timer) and a periodic tracking area update timer (Periodic RAU/TAU Timer); the eDRX power saving parameters include: eDRX Cycle and PTW;

Step 703: The UE uses the adjusted power saving parameter.

Example 4:

In this embodiment, the terminal is enabled to enable the power saving function or adjust the power saving parameter by using the NAS signaling in the connected state. As shown in Figure 8, the following steps are included:

Step 801: The MME detects that the power saving policy is changed, and prepares to adjust the power saving parameter of the terminal, and the user is in the connected state.

Step 802: The MME sends an EMM Information to the UE, where the ECM Information includes a power saving policy adjustment indication, instructing the UE to enable the power saving function or adjust the power saving parameter.

Step 803: The UE immediately initiates a TAU process, and renegotiates power saving parameters.

Example 5:

In this embodiment, the power-saving function is enabled or the power-saving parameter is adjusted by the UE connection release trigger terminal. As shown in Figure 9, the following steps are included

Step 901: The MME detects that the power saving policy is changed, and prepares to adjust the power saving parameter of the terminal, and the user is in the connected state.

[Correct according to Rule 91 19.07.2018]
Step 902: The MME sends a terminal context release command (UE Context Release Command) message to the eNodeB to include a power saving policy adjustment indication, instructing the UE to enable the power saving function or adjust the power saving parameter.

Step 903: The eNodeB sends a radio resource release (RRC ConnectionRelease) message to the UE, where the eNodeB message includes a power saving policy adjustment indication, and indicates that the UE enables the power saving function or adjusts the power saving parameter.

Step 904: The UE immediately initiates a TAU process and renegotiates power saving parameters.

Example 6

In this embodiment, the terminal is used to trigger the terminal to enable the power saving function or adjust the power saving parameter. As shown in Figure 10, the following steps are included:

Step 1001: The MME detects that the power saving policy changes, and prepares to adjust the power saving parameter of the terminal, and the user is in an idle state.

Step 1002: The MME sends a Paging message to the eNodeB to include a power saving policy adjustment indication, instructing the UE to enable the power saving function or adjust the power saving parameter.

Step 1003: The eNodeB sends a Paging message to the UE, including a power saving policy adjustment indication, instructing the UE to enable the power saving function or adjust the power saving parameter.

Step 1004: The UE immediately initiates a TAU process and renegotiates power saving parameters.

Example 7

In this embodiment, an embodiment in which the terminal adjusts the power saving parameter by the network side separation process is triggered. As shown in Figure 11, the following steps are included:

Step 1101: The UE has enabled the power saving function, and the MME detects that the power saving policy changes, and prepares to adjust the power saving parameter of the terminal.

Step 1102: The MME sends a Detach Request message to the UE, and carries a re-attachment indication.

Step 1103: The UE immediately initiates an Attach process to renegotiate power saving parameters.

Example 8

In this embodiment, the terminal is used to trigger the terminal to enable the power saving function or adjust the power saving parameter through the network side separation process. As shown in Figure 12, the following steps are included:

Step 1201: The MME detects that the power saving policy changes, and prepares to adjust the power saving parameter of the terminal.

Step 1202: The MME sends a Detach Request message to the UE, and carries a re-attachment indication, and includes a power-saving policy adjustment indication, instructing the UE to enable the power-saving function or adjust the power-saving parameter.

Step 1203: The UE immediately initiates an Attach process to renegotiate power saving parameters.

Example 9

In this embodiment, the power saving policy change is triggered by the adjustment of the network side application layer communication parameter. As shown in Figure 13, the following steps are included:

Step 1301: Perform an application adjustment of the Internet of Things application on the network side;

Step 1302: The IoT application sends a command notification, and sends the adjusted policy (for example, a communication period) to the UE.

Step 1303: The UE senses that the application adjustment affects the power saving parameter.

Step 1304: The UE immediately initiates a TAU process, and renegotiates power saving parameters.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation. Based on such understanding, the technical solution of the present application, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present application.

In the embodiment, a power saving policy adjusting device is further provided, which is used to implement the above-mentioned embodiments and preferred embodiments, and has not been described again. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.

FIG. 14 is a schematic diagram of a power saving policy adjusting apparatus according to an embodiment of the present application. The power saving policy adjusting apparatus is located on a network side of a narrowband Internet of Things. As shown in FIG. 14 , the power saving policy adjusting apparatus 100 includes a sending module 10 and configured. To change the network side power saving policy of the narrowband Internet of Things, send a notification message to the terminal to enable the terminal to adjust the power saving policy or trigger the terminal to initiate a power saving parameter negotiation process.

A power saving policy adjustment system is also provided in this embodiment. FIG. 15 is a schematic diagram of a power saving policy adjustment system according to an embodiment of the present application. As shown in FIG. 15 , the system includes the network side described in the foregoing. The power saving policy adjustment device 100, and one or more terminals 200 interacting therewith. The power saving policy adjusting apparatus 100 may be an MME, and the terminal 200 may be any Internet of Things terminal, for example, a smart meter, a monitor, various sensors applied to smart wear, a smart home, and the like. The process of the interaction between the power saving policy adjusting apparatus 100 and the terminal 200 may be performed according to the description of the foregoing embodiment, and is not described herein.

It should be noted that each of the above modules may be implemented by software or hardware. For the latter, the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the modules are located in multiple In the processor.

Embodiments of the present application also provide a storage medium. In this embodiment, the storage medium stores a computer program, and when the computer program is running, the flow steps in the foregoing embodiments may be executed.

In this embodiment, the foregoing storage medium may include, but not limited to, a U disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, a magnetic disk, or an optical disk. A variety of media that can store program code.

Obviously, those skilled in the art should understand that the above modules or steps of the present application can be implemented by a general computing device, which can be concentrated on a single computing device or distributed in a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module. Thus, the application is not limited to any particular combination of hardware and software.

The above description is only the preferred embodiment of the present application, and is not intended to limit the present application, and various changes and modifications may be made to the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application are intended to be included within the scope of this application.

Industrial applicability

With the embodiment of the present application, the network side can actively trigger the terminal to enable or adjust the power saving parameter, ensure the stability of the Internet of Things application while saving power, extend the service life of the terminal, and improve the service experience of the user.

Claims

A power saving strategy adjustment method includes:

When the network side power saving policy of the Internet of Things changes, the network side sends a notification message to the terminal to trigger the terminal to adjust the power saving policy.
The method according to claim 1, wherein the notification message carries at least one of the following: a power saving parameter, a power saving function enabling identifier, and a power saving policy adjustment indication.
The method of claim 2, wherein the power saving parameter comprises at least one of: a power saving mode parameter, an extended idle mode discontinuous receiving parameter.
The method according to claim 3, wherein the power saving mode parameter comprises at least one of: an active timer duration, a periodic tracking area update timer duration.
The method of claim 3, wherein the extended idle mode discontinuous reception parameter comprises at least one of: an extended idle mode discontinuous reception period, a paging time window duration.
The method according to any one of claims 1 to 5, wherein the network side sends a notification message to the terminal by at least one of the following:

Transmitting, by the mobility management entity on the network side, the notification message to the terminal;

The mobility management entity on the network side sends the notification message to the terminal by using a base station;

The Internet of Things application sends the notification message to the terminal.
A power saving strategy adjustment method includes:

The terminal receives the notification message sent by the network side of the Internet of Things;

The terminal adjusts a power saving policy of the terminal according to the notification message.
The method according to claim 7, wherein the notification message carries at least one of the following: a power saving parameter, a power saving function enabling identifier, and a power saving policy adjustment indication.
The method according to claim 8, wherein the terminal adjusts the power saving policy of the terminal according to the notification message, including at least one of the following:

The terminal uses a power saving parameter carried in the notification message;

The terminal enables the power saving function of the terminal according to the power saving function enabled identifier carried in the notification message;

The terminal initiates a power saving parameter negotiation process according to the power saving policy adjustment instruction carried in the notification message, so as to adjust the power saving parameter of the terminal.
The method of claim 9, wherein the power saving parameter comprises at least one of: a power saving mode parameter, an extended idle mode discontinuous receiving parameter.
The method according to claim 9, wherein the notification message further carries a re-attachment indication, and the terminal initiates a re-attachment procedure according to the notification message to renegotiate the power-saving parameter.
A power saving strategy adjusting device, located on the network side of the Internet of Things, includes:

The sending module is configured to change the network side power saving policy of the Internet of Things, and send a notification message to the terminal to trigger the terminal to adjust the power saving policy.
The device according to claim 12, wherein the notification message carries at least one of the following: a power saving parameter, a power saving function enabling identifier, and a power saving policy adjustment indication.
The apparatus of claim 13, wherein the power saving parameter comprises at least one of: a power saving mode parameter, an extended idle mode discontinuous receiving parameter.
The apparatus of claim 12, wherein the apparatus is an MME mobility management entity.
A terminal, including:

a receiving module configured to receive a notification message sent by a network side of the Internet of Things;

And an adjustment module, configured to adjust a power saving policy of the terminal according to the notification message.
The terminal of claim 16, wherein the adjustment module comprises:

a first execution unit, configured to use a power saving parameter carried in the notification message;

a second execution unit, configured to enable the power saving function of the terminal according to the power saving function enabled identifier carried in the notification message;

The third executing unit is configured to initiate a power saving parameter negotiation process according to the power saving policy adjustment indication carried in the notification message, to adjust the power saving parameter of the terminal.
The terminal of claim 17, wherein the power saving parameter comprises at least one of: a power saving mode parameter, an extended idle mode discontinuous receiving parameter.
A computer storage medium storing computer executable instructions configured to perform the power saving policy adjustment method of any of claims 1-6 and 7-11.