WO2019037704A1

WO2019037704A1 - Method and apparatus for waking up terminal device

Info

Publication number: WO2019037704A1
Application number: PCT/CN2018/101469
Authority: WO
Inventors: 丁志明; 韩云博; 庄宏成; 杜振国
Original assignee: 华为技术有限公司
Priority date: 2017-08-22
Filing date: 2018-08-21
Publication date: 2019-02-28

Abstract

A method and apparatus for waking up a terminal device, which are used to solve the problem in the prior art of a transceiver in a terminal device needing to periodically listen to a paging message when the terminal device is in an idle mode, resulting in the power-saving effect of the terminal device being poor. The method involves: a terminal device sending, to an access device, an indication message regarding the fact that the terminal device itself may be in an LPI mode; after an RRC connection of the terminal device is released, the access device marking, according to the indication information, that the terminal device is in the LPI mode, or forwarding the indication message to a core network device, such that the core network device marks, after the RRC connection is released and according to the indication information, that the terminal device is in the LPI mode; after receiving a paging message or a wake-up message sent by the core network device, the access device sending WUS to the terminal device; and after a WUR of the terminal device receives the WUS, the terminal device switching a transceiver of the terminal device from a sleeping state to a working state, such that the terminal device is woken up.

Description

Method and device for waking up terminal equipment

This application claims the priority of the Chinese Patent Application filed on Sep. 29, 2017, the Chinese Patent Office, Application No. 201710911473.0, and the application entitled "A Method and Apparatus for Awakening Terminal Equipment", and on August 22, 2017 The priority of the Chinese Patent Application, which is hereby incorporated by reference in its entirety in its entirety in its entirety in the the the the the the the the the

Technical field

The present application relates to the field of communications technologies, and in particular, to a method and apparatus for waking up a terminal device.

Background technique

Energy saving and emission reduction is a topic that is currently being paid attention to all over the world. It requires equipment to reduce the power consumption of equipment to the greatest extent possible without affecting the business, so as to achieve the goal of energy saving and emission reduction.

At present, in the communication system, the terminal device does not need to communicate with the network side, that is, the terminal device enters the idle state after the radio resource control (RRC) connection between the network device and the network side is released. The mode is such that the terminal device can save power and reduce power consumption. The terminal device enters an idle mode, where the transceiver in the terminal device enters an idle mode. After the RRC connection between the terminal device and the network side is released, the network device on the network side marks the terminal device to enter an idle mode, when the downlink data needs to be sent to the terminal device in the idle mode. Sending a paging message to all access devices in the tracking area where the terminal device is located, so that the paging message is forwarded to the terminal device by the access device, when the terminal device receives the After the paging message is entered, the terminal device is awakened, that is, the transceiver in the terminal device is woken up, so that the terminal device subsequently communicates with the network side. The tracking area includes multiple cells that the terminal device can move freely, and the multiple cells belong to at least one access device.

In practice, when the terminal device is in the idle mode, the transceiver of the terminal device periodically wakes up from the sleep state to listen to whether there is a paging message sent to the terminal device, if not heard. The paging message continues to enter the sleep state. It is well known that the transceiver of the terminal device generates a large amount of power consumption during operation, that is, the transceiver of the terminal device also causes the terminal device to consume a large amount of power when listening to the paging message, so that the terminal The device generates a lot of power. Based on the above situation, the longer the period of the listening, the better the effect of saving power. However, if the period is too long, the terminal device may not receive the paging message on the network side in time, which may not be timely. Receiving downlink data sent by the network side to the terminal device, causing service failure.

In summary, in the existing communication system, when the terminal device is in the idle mode, the transceiver in the terminal device needs to periodically listen to the paging message, so that the terminal device saves power and reduces power consumption.

Summary of the invention

The present invention provides a method and device for waking up a terminal device, which is used to solve the problem that the terminal device in the terminal device periodically listens for paging messages when the terminal device is in the idle mode, so that the terminal device saves power and reduces power. The problem of poor performance.

In a first aspect, the application provides a method for waking up a terminal device, the method comprising:

The terminal device sends the indication information to the access device, and after the RRC connection is released, switches the transceiver of the terminal device from the working state to the sleep state, and wakes up the receiver of the terminal device (wake-up receiver, WUR) Switching from the sleep state to the working state; after the RRC connection is released, the access device marks the terminal device in a low power idle (LPI) mode according to the indication information, and receives the core After the paging message for the terminal device sent by the network device, generating a wake-up signal (WUS) according to the identifier of the terminal device in the LPI mode, and sending the WUS to the terminal After the WUR of the terminal device receives the WUS, the terminal device switches the transceiver of the terminal device from a sleep state to an active state, so that the terminal device is woken up.

Through the foregoing method, the terminal device sends the indication information that can be in the LPI mode to the access device, so that when the terminal device is in the LPI mode, the WUS is received by the WUR with lower power consumption than the transceiver, without the transceiver. Receiving any information, the terminal device can save power consumption, and the terminal device can further reduce power consumption, and the power consumption of the existing terminal device is reduced.

In a possible design, the terminal device may send the indication information to the access device in the following three situations:

In the first case, the terminal device sends the indication information to the access device when accessing the access device.

The second case: when the terminal device needs to enter the LPI mode, send the indication information to the access device before the RRC connection is released.

In a third case, after receiving the mode query message sent by the access device, the terminal device returns the indication information to the access device. Specifically, the access device may send the mode query message directly to the terminal device after the terminal device is accessed; the access device may also send the core network device or other network device. After the mode query message, the mode query message is forwarded to the terminal device.

Through the foregoing method, the terminal device can flexibly send the indication information to the access device in multiple manners.

In one possible design, the indication information is capability information including the WUR in the terminal device; or the indication information is information including content that the terminal device uses the LPI mode. The sending, by the terminal device, the indication information to the access device, may enable the access device to identify that the terminal device enters the LPI mode after the RRC connection is released, instead of the traditional idle mode.

In a possible design, the paging message includes the first identifier of the terminal device, and the specific method for the access device to generate the WUS may be classified into the following two types:

The first method: the access device acquires the first identifier in the paging message, and generates the WUS that includes the first identifier.

a second method: after the access device obtains the first identifier in the paging message, acquiring a second identifier of the terminal device corresponding to the first identifier, and generating the second identifier And the second identifier is an identifier that is allocated by the core network device or another network device to the terminal device during the release of the RRC connection by the terminal device. In the second method, the first identifier and the second identifier are both a digital sequence, and the second identifier is shorter than the sequence of the first identifier, such that by the second method, The WUS including the second identifier generated by the access device is processed more simply than the WUS directly including the first identifier, so that the WUR of the terminal device receives the response when receiving the WUS. faster.

In an optional implementation manner, when the WUR of the terminal device receives the WUS, the WUR may listen to the WUS every set time. For example, the WUR may listen every 1280 milliseconds. 2 milliseconds. Specifically, the set duration may also be referred to as a listening period. The listening time point of the WUR every the set duration may be referred to as a wake-up occasion (WO), and the WO may be agreed by the access device and the terminal device, It may be directly specified by the access device.

In the above method, the WUR of the terminal device can listen to the WUS only at each WO point, and may not be in a listening state at other times, thereby saving power and reducing power consumption of the terminal device.

In a possible design, the specific method for the terminal device to switch the transceiver of the terminal device from the sleep state to the working state may be: the WUR of the terminal device directly wakes up the terminal device The transceiver may be configured to directly send a signal to the transceiver to trigger the transceiver of the terminal device to be powered on, to switch the transceiver of the terminal device from a sleep state to a working state; or the terminal After the processor of the device recognizes that the WUR of the terminal device receives the WUS, the transceiver controlling the terminal device is switched from a sleep state to an active state.

Through the foregoing method, the terminal device may be awakened to enable a subsequent communication process with the access device, thereby obtaining downlink data that is forwarded by the core network device to the terminal device by using the access device.

In a possible design, after the WUR of the terminal device receives the WUS, the terminal device switches the WUR of the terminal device from an active state to a sleep state. This allows the WUR to no longer consume power, thereby making the terminal device more power efficient.

In a possible design, the WUS may include an identifier of the access device, so that after the terminal device is woken up, it may be recognized that communication needs to be performed with the access device, and the terminal device may A new RRC connection is established between the access devices, and the access device is further configured to obtain downlink data that is forwarded by the core network device to the terminal device by using the access device.

In a second aspect, the present application further provides another method for waking up a terminal device, where the method includes:

The terminal device sends the indication information to the first access device, and after the RRC connection is released, switches the transceiver of the terminal device from the working state to the sleep state, and switches the WUR of the terminal device from the sleep state to the working state. The first access device forwards the indication information to the core network device; after the RRC connection of the terminal device is released, the core network device marks, according to the indication information, that the terminal device is in the LPI mode. And sending, when the downlink data needs to be sent to the terminal device, a wake-up message to the second access device according to the label that the terminal device is in the LPI mode, to notify the second access device of the current terminal. The device is in the LPI mode and needs to be woken up; the second access device generates a WUS after receiving the wakeup message, and sends the WUS to the terminal device; the WUR receiving of the terminal device After the WUS is sent by the second access device, the terminal device switches the transceiver of the terminal device from a sleep state to an active state. The second access device covers the access device of the second cell after the first cell that is covered by the first access device is moved to the second cell by the terminal device.

Through the foregoing method, the terminal device sends the indication information that can be in the LPI mode to the access device, so that when the terminal device is in the LPI mode, the WUS is received by the WUR with lower power consumption than the transceiver. The transceiver receives any information, which can save the power consumption of the terminal device, thereby further reducing the power consumption of the terminal device, and the power consumption reduction effect is better than the existing terminal device.

In a possible design, the terminal device may send the indication information to the first access device in the following three situations:

In the first case, the terminal device sends the indication information to the first access device when accessing the first access device.

The second case: when the terminal device needs to enter the LPI mode, send the indication information to the first access device before the RRC connection is released.

The third case: after receiving the mode query message sent by the first access device, the terminal device returns the indication information to the first access device. Specifically, the first access device may directly send the mode query message to the terminal device after the terminal device is accessed; the first access device may also receive the core network device or other After the mode query message sent by the network device, the mode query message is forwarded to the terminal device.

The foregoing method, the terminal device may send the indication information to the first access device flexibly in a plurality of manners, so that the first access device forwards the indication information to the core Network equipment.

In one possible design, the indication information is capability information including the WUR in the terminal device; or the indication information is information including content that the terminal device uses the LPI mode. After the terminal device sends the indication information to the first access device, the first access device may be forwarded to the core network device, and the core network device may be identified to the terminal device. The LPI mode is entered after the RRC connection is released, instead of the traditional idle mode.

In a possible design, the core network device sends the wake-up message to all access devices in the tracking area where the terminal device is currently located, so as to cover the second cell where the terminal device is currently located. The access device can wake up the terminal device by using the wakeup message. Specifically, the second access device is an access device that covers the second cell where the terminal device is currently located in the all access devices.

In a possible design, when the core network device sends the wake-up message to the second access device, the wake-up message may be carried in a paging message, and the paging message is sent to the The second access device is configured; or the core network device may directly send the wakeup message to the second access device.

The method of the foregoing method, the core network device may accurately send the wake-up message to the second access device, to notify the second access device that the terminal device is currently in the LPI mode, and needs to be Wake-up, so that the second access device sends the WUS to the terminal device, thereby waking up the terminal device.

In a possible design, the wake-up message includes a first identifier of the terminal device, and the specific method for the second access device to generate the WUS may be classified into the following two types:

The first method: the second access device acquires the first identifier in the wakeup message, and generates the WUS that includes the first identifier.

a second method: after acquiring the first identifier in the awake message, the second access device acquires a second identifier of the terminal device corresponding to the first identifier, and generates the And the second identifier is an identifier that is allocated by the core network device or another network device to the terminal device during the release of the RRC connection by the terminal device. In the second method, the first identifier and the second identifier are both a digital sequence, and the second identifier is shorter than the sequence of the first identifier, such that by the second method, The WUS including the second identifier generated by the second access device is processed more easily than the WUS directly including the first identifier, so that when the WUR of the terminal device receives the WUS The response is faster.

In a possible design, when the WUR of the terminal device receives the WUS, the WUR can listen to the WUS every set time. For example, the WUR can listen for 2 milliseconds every 1280 milliseconds. Specifically, the set duration may also be referred to as a listening period. The listening time point of the WUR every the set duration may be referred to as a WO, and the WO may be agreed by the second access device and the terminal device, or may be the second connection. Directly assigned to the device.

The terminal device may be awakened by the foregoing method, so as to enter a subsequent communication process with the access device, thereby obtaining downlink data that is forwarded by the core network device to the terminal device by using the second access device. .

In a possible design, the identifier of the second access device may be included in the WUS, so that after the terminal device is woken up, it may be recognized that communication needs to be performed with the second access device, where the terminal The device establishes a new RRC connection with the second access device, and further communicates with the second access device, so that the core network device is forwarded to the terminal by using the second access device. Downstream data of the device.

In a third aspect, the present application further provides another method for waking up a terminal device, where the method includes:

The terminal device sends the indication information to the access device, and after the RRC connection is released, switches the transceiver of the terminal device from the working state to the sleep state, and switches the WUR of the terminal device from the sleep state to the working state; The access device forwards the indication information to the core network device; after the RRC connection of the terminal device is released, the core network device marks, according to the indication information, that the terminal device is in the LPI mode, and needs Sending a wake-up message to the access device according to the identifier of the terminal device in the LPI mode, to notify the access device that the terminal device is currently in the LPI mode, when the downlink data is sent to the terminal device. And the device needs to be woken up; the access device generates the WUS after receiving the wake-up message, and sends the WUS to the terminal device; the WUR of the terminal device receives the sending by the access device After the WUS, the terminal device switches the transceiver of the terminal device from a sleep state to an active state.

Through the foregoing method, the terminal device may flexibly send the indication information to the access device in a plurality of manners, so that the access device forwards the indication information to the core network device.

In one possible design, the indication information is capability information including the WUR in the terminal device; or the indication information is information including content that the terminal device uses the LPI mode. After the terminal device sends the indication information to the access device, the access device may be forwarded to the core network device, and the core network device may be configured to identify the terminal device in the RRC. The connection is released and enters the LPI mode instead of the traditional idle mode.

In a possible design, the core network device sends the wake-up message to all access devices in the tracking area where the terminal device is currently located, so as to cover the connection of the cell where the terminal device is currently located. The ingress device can wake up the terminal device by using the wakeup message. Specifically, the terminal device is always not in the cell covered by the access device, so the terminal device wakes up after receiving the wake-up message.

In a possible design, when the core network device sends the wake-up message to the access device, the wake-up message may be carried in a paging message, and the paging message is sent to the connection Entering the device; or the core network device may directly send the wakeup message to the access device.

The method of the foregoing method, the core network device can accurately send the wake-up message to the access device, to notify the access device that the terminal device is currently in the LPI mode, and needs to be woken up, so that The access device sends the WUS to the terminal device, and then wakes up the terminal device.

In a possible design, the wake-up message includes the first identifier of the terminal device, and the specific method for the access device to generate the WUS may be classified into the following two types:

The first method: the access device acquires the first identifier in the wakeup message, and generates the WUS that includes the first identifier.

a second method: after the access device obtains the first identifier in the awake message, acquiring a second identifier of the terminal device corresponding to the first identifier, and generating the second identifier The second identifier is an identifier that is allocated by the core network device or other network device to the terminal device during the release of the RRC connection by the terminal device. In the second method, the first identifier and the second identifier are both a digital sequence, and the second identifier is shorter than the sequence of the first identifier, such that by the second method, The WUS including the second identifier generated by the access device is processed more simply than the WUS directly including the first identifier, so that the WUR of the terminal device receives the response when receiving the WUS. faster.

In a possible design, when the WUR of the terminal device receives the WUS, the WUR can listen to the WUS every set time. For example, the WUR can listen for 2 milliseconds every 1280 milliseconds. Specifically, the set duration may also be referred to as a listening period. The listening time point of the WUR every the set duration may be referred to as a WO, and the WO may be agreed by the access device and the terminal device, or may be directly specified by the access device. of.

In a fourth aspect, the present application further provides a terminal device, where the terminal device has a function of implementing a behavior of a terminal device in the foregoing method instance. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In a possible design, the structure of the terminal device includes a transceiver, a processor, and a WUR, and may further include a memory, where the transceiver is configured to receive and transmit data, and communicate with the access device; For receiving the WUS; the processor is configured to support the foregoing terminal device to perform a corresponding function of the terminal device in the foregoing method. The memory is coupled to the processor, which stores program instructions and data necessary for the terminal device.

In a fifth aspect, the application further provides an access device, where the access device has the function of implementing the behavior of the access device in the method instance in the foregoing first aspect. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In a possible design, the structure of the access device includes a wireless transceiver, a processor, a memory, and a backhaul communication interface, the wireless transceiver is configured to receive and transmit data, and communicate with the terminal device; The backhaul communication interface is configured to receive and transmit data, and communicate with the core network device. The processor is configured to support the access device to perform the corresponding function of the access device in the method of the first aspect. The memory is coupled to the processor, which stores program instructions and data necessary for the access device.

In a sixth aspect, the application further provides an access device, where the access device has the function of implementing the behavior of the first access device in the foregoing method instance of the second aspect. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In a possible design, the access device includes a wireless transceiver, a backhaul communication interface, and a processor, and may further include a memory, where the wireless transceiver is configured to receive and transmit data, and communicate with the terminal device. The backhaul communication interface is configured to receive and transmit data, and communicate with the core network device. The processor is configured to support the access device to perform the corresponding function of the first access device in the foregoing second method. The memory is coupled to the processor, which stores program instructions and data necessary for the access device.

In a seventh aspect, the application further provides an access device, where the access device has the function of implementing the behavior of the access device in the method instance in the foregoing third aspect. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In a possible design, the access device includes a wireless transceiver, a backhaul communication interface, and a processor, and may further include a memory, where the wireless transceiver is configured to receive and transmit data, and communicate with the terminal device. The backhaul communication interface is configured to receive and transmit data, and communicate with the core network device; the processor is configured to support the access device to perform the corresponding function of the access device in the method of the third aspect. The memory is coupled to the processor, which stores program instructions and data necessary for the access device.

In an eighth aspect, the application further provides a core network device, where the core network device has a function of implementing the behavior of the core network device in the method instance of the foregoing third aspect. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In a possible design, the core network device includes a backhaul communication interface, a processor, and a memory, where the backhaul communication interface is configured to receive and transmit data, and communicate with the access device; the processor is The function of the core network device in the method of the foregoing third aspect is configured to support the foregoing core network device. The memory is coupled to the processor, which stores program instructions and data necessary for the core network device.

In a ninth aspect, the present application further provides a communication system, where the communication system includes a plurality of access devices, a plurality of terminal devices, and a core network device.

In a tenth aspect, the present application further provides a computer storage medium having stored therein computer executable instructions for causing the computer to perform the above-mentioned tasks when called by the computer a way.

In an eleventh aspect, the present application also provides a computer program product comprising instructions for causing a computer to perform any of the above methods when the computer program product is run on a computer.

In a twelfth aspect, the present application further provides a chip connected to a memory for reading and executing program instructions stored in the memory to implement any of the above methods.

In this embodiment, the terminal device sends an indication message that the terminal device can be in the LPI mode to the access device, and after the RRC connection of the terminal device is released, the access device marks the identifier according to the indication information. The terminal device is in the LPI mode, or forwards the indication message to the core network device, so that after the RRC connection of the terminal device is released, the core network device marks, according to the indication information, that the terminal device is in the The LPI mode; the access device then sends a WUS to the terminal device after receiving the paging message or the wake-up message sent by the core network device; after the WUR of the terminal device receives the WUS, the The terminal device switches the transceiver of the terminal device from a sleep state to an active state, so that the terminal device is woken up. In the method, the terminal device sends the indication information that can be in the LPI mode to the access device, so that when the terminal device is in the LPI mode, the WUS is received by the WUR with lower power consumption than the transceiver. The transceiver receives any information, so that the terminal device can save more power consumption, and thus the terminal device can further reduce power consumption, and the power consumption reduction effect is better than the existing terminal device.

DRAWINGS

1 is a schematic structural diagram of a communication system provided by the present application;

2 is a flowchart of a method for waking up a terminal device according to the present application;

FIG. 3 is a flowchart of another method for waking up a terminal device according to the present application; FIG.

4 is a flowchart of still another method for waking up a terminal device according to the present application;

FIG. 5 is a structural diagram of a terminal device provided by the present application;

FIG. 6 is a structural diagram of an access device provided by the present application;

FIG. 7 is a structural diagram of another access device provided by the present application;

FIG. 8 is a structural diagram of still another access device provided by the present application;

FIG. 9 is a structural diagram of a core network device provided by the present application.

Detailed ways

The present application will be further described in detail below with reference to the accompanying drawings.

The embodiment of the present invention provides a method and a device for waking up a terminal device, which are required to solve the problem that the terminal device in the terminal device periodically listens to the paging message when the terminal device is in the idle mode, so that the terminal device saves power. The problem of reducing power consumption is not good. The method and the device of the present application are based on the same inventive concept. Since the principles of the method and the device for solving the problem are similar, the implementation of the device and the method can be referred to each other, and the repeated description is not repeated.

Hereinafter, some of the terms in the present application will be explained to be understood by those skilled in the art.

1) A terminal device, also called a user equipment (UE), is a device that provides data connectivity to a user, for example, a handheld device with a wireless connection function, an in-vehicle device, a wearable device, and a computing device. a device, a mobile station (MS) or other processing device connected to the wireless modem, and the like, and a mobile terminal that communicates with the one or more core networks via the access network; for example, the terminal device may be a mobile phone, Tablet PC, personal digital assistant (PDA), point of sales (POS), on-board computer, etc.

2) An access device, also referred to as a base station (BS), is a device that provides a radio access service for a terminal device, including but not limited to: an evolved Node B (eNB), a wireless network. A radio network controller (RNC), a Node B (NB), a base station controller (BSC), a base transceiver station (BTS), and a home base station (for example, a home evolved NodeB, Or home Node B, HNB), baseband unit (BBU), access point (AP), wireless fidelity access point (WiFi AP), worldwide interoperability For microwave access, WiMAX) BS, etc.

3), the core network device, which may be, but is not limited to, a mobile management entity (MME)/serving gate way (SGW), an MME, etc., where the MME/SGW indicates that the MME is located with the SGW. A physical entity.

4) "Multiple" in the embodiment of the present application means two or more.

5) In the description of the present application, the terms "first", "second" and the like are used to distinguish the purpose of the description, and are not to be construed as indicating or implying a relative importance, nor as an indication or suggestion.

In order to more clearly describe the technical solutions of the embodiments of the present application, the method and apparatus for waking up the terminal device provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of a possible communication system applicable to a method for waking up a terminal device according to an embodiment of the present application. The architecture of the communication system includes: multiple access devices, multiple terminal devices, and core network devices, where:

Any one of the plurality of terminal devices is configured to access an access device of the multiple access devices to perform various services, such as a voice service, a short message service, an Internet service, and the like. For example, the terminal device 1 in FIG. 1 can access the access device 1 to perform various services; the terminal device 2 can access the access device 1 or access the access device 2 to perform various services; The terminal device 4 and the terminal device 5 have the same access principle as the terminal device 1 and the terminal device 2. In addition, each terminal device can move freely in an area covered by the network, and the terminal device does not need to update the free moving area of the service access device in the idle mode as a tracking area (TA) of the terminal device, TA The method includes a plurality of cells that the terminal device can move freely, and the multiple cells are areas covered by at least one access device. The TA of the terminal device may change, that is, the terminal device may have different tracking areas at different time periods or locations. The terminal device needs to register or update the TA to the core network device, so that the core network device can identify the TA where the terminal device is in the idle mode, and when the downlink data needs to be sent to the terminal device, , the terminal device can be accurately paged.

The multiple access devices are located in the access network, and are used to provide wireless access services for the terminal devices, so that the terminal devices can access the corresponding access devices to perform various services. Each access device may provide a wireless access service for at least one terminal device. For example, the access device 1 shown in FIG. 1 can provide wireless access services for the terminal device 1 and the terminal device 2, and the access device 2 can provide wireless access services for the terminal device 2, the terminal device 3, and the terminal device 4.

The core network device is located in the core network, and is configured to manage mobility of the multiple terminals, and when the downlink data needs to be sent to the multiple terminal devices, pass the multiple access devices. Forward the downlink data to the corresponding terminal device. The core network includes a device MME that manages the mobility of the terminal, and the MME may exist independently. The MME may also be located in the same physical entity as the gateway device SGW that connects the access network and the core network.

In a specific implementation, when any terminal device accesses an access device, that is, when the terminal device communicates with the access device, an RRC connection is established between the terminal device and the core network device. An Evolved Packet System (EPS) connection management (ECM) connection is also established; the RRC connection and the ECM connection are synchronously established and released synchronously, that is, when the terminal device and the access are connected. When communication between devices is no longer required, when the RRC connection is released, the ECM connection is also released.

It should be noted that, although not shown, other devices or network elements may be included in the architecture of the communication system shown in FIG. 1.

The terminal devices mentioned in the following embodiments of the present application include a transceiver and a WUR, wherein the power consumption of the WUR is lower than the power consumption of the transceiver. The transceiver may be a primary radio interface, that is, a main radio (MR), which is mainly used for performing interaction communication with the access device, acquiring downlink data sent by the core network device through the access device, and receiving Structured messages, etc. from other network devices, and sending data and other various messages to the access device; and the WUR is only used to receive some relatively simple signals.

The embodiment of the present application provides a method for waking up a terminal device, which is applicable to a communication network as shown in FIG. 1. Referring to Figure 2, the specific process of the method includes:

Step 201: The terminal device sends the indication information to the access device, where the indication information is used to indicate that the RRC connection of the terminal device is released, the terminal device is in an LPI mode, and the transceiver of the terminal device is in the LPI mode. In the sleep state, the wake-up receiver WUR of the terminal device is in an active state.

In an optional implementation manner, the terminal device may send the indication information to the access device in the following three situations:

In addition to the above three cases, the terminal device may also send the indication message to the access device in real time according to its actual situation. For example, in a process in which the terminal device continuously moves rapidly between a plurality of cells, the terminal device needs to wait until the terminal device does not move or move slowly, and then sends the indication to the access device. information.

In an optional implementation manner, the indication information is capability information that includes the WUR in the terminal device; or the indication information is information that includes content that the terminal device uses the LPI mode. The sending, by the terminal device, the indication information to the access device, may enable the access device to identify that the terminal device enters the LPI mode after the RRC connection is released, instead of the traditional idle mode.

Step 202: After the RRC connection is released, the terminal device switches the transceiver of the terminal device from a working state to a sleep state, and the WUR of the terminal device is in a sleep state. Switch to working status.

Specifically, when the terminal device communicates with the access device, the RRC connection is established between the terminal device and the access device, and between the terminal device and the core network device. Establishing an ECM connection; the RRC connection and the ECM connection are synchronously established and synchronously released, that is, when the RRC connection is released, the ECM connection is also released. Therefore, the release of the RRC connection may be that the terminal device initiates a release process, or the access device may initiate a release process, or the core network device may initiate a release process of the ECM connection. The RRC connection is released. In a specific implementation, the terminal device, the access device, and the core network device may identify the release of the RRC connection, regardless of which of the foregoing three release processes.

In an optional implementation manner, after the terminal device enters the LPI mode by using the step 202, the transceiver may switch to a sleep state, which may be performed as a circuit shutdown, without generating any power consumption, or may be performed as an entry. Deep sleep states produce only weak power consumption, such as 0.012 milliwatts. In this way, the transceiver that consumes a relatively large amount of power in the terminal device may not generate or consume less power in the LPI mode, so that the terminal device can reduce power consumption.

Step 203: After the RRC connection of the terminal device is released, the access device marks, according to the indication information, that the terminal device is in the LPI mode.

Specifically, after receiving the indication information, the access device may identify that the terminal device enters the LPI mode after the RRC connection is released, so when the access device identifies the terminal device, After the RRC connection is released, the access device determines that the terminal device is in the LPI mode, and the access device performs step 203, so that the access device subsequently receives the core network device. When the sent paging message needs to be sent to the terminal device, it may be recognized that the WUS needs to be sent to the terminal device, so that the terminal device is woken up.

Step 204: The access device receives a paging message sent by the core network device for the terminal device.

After the foregoing process is performed, only the access device receives the indication information, and the core network device does not receive the indication information, so the core network device does not know that the terminal device is in the RRC. After the connection is released, the LPI mode is in the LPI mode, but the terminal device is in the traditional idle mode according to the existing specifications, and the core network device will page the terminal device according to the existing process, that is, continue. The terminal device is paged by a paging message.

In a specific implementation, the description in the foregoing step 202 is that the ECM connection between the core network device and the terminal device is synchronized with the RRC connection between the terminal device and the access device. Upon establishment and synchronization release, the core network device can identify the release of the RRC connection to the terminal device. Therefore, after the core network device recognizes that the RRC connection is released, the terminal device is marked to be in a traditional idle mode; then, when the core network device needs to send downlink data to the terminal device, The core network device sends a paging message to all access devices in the tracking area where the terminal device is located, so that the access device to which the cell currently located in the terminal device belongs can wake up the terminal device by using the paging message. The access device in the tracking area of the terminal device that covers the cell where the terminal device is currently located may receive the paging message and perform a process of waking up the terminal device. In this embodiment, the cell where the terminal device is currently located is the cell where the terminal device is located before entering the LPI mode, that is, the terminal device does not move.

In an optional implementation manner, the downlink data may be a voice call request, a short message, and information pushed by the network application.

Step 205: The access device generates a WUS according to the label that the terminal device is in the LPI mode, and sends the WUS to the terminal device, that is, the access device sees that the terminal device is in the LPI mode. The flag indicates that when the paging message sent by the core network device for paging the terminal device is received, the operation of generating the WUS is triggered.

In an optional implementation manner, the paging message sent by the core network device includes a first identifier of the terminal device, and the access device may pass the paging message after receiving the paging message. The first identifier of the terminal device in the paging message determines that the terminal device that is currently in the LPI mode is to be paged, and therefore, the access device determines that the device cannot be used according to an existing process. The paging message is forwarded to the terminal device, but the WUS is sent to the terminal device to wake up the terminal device.

In an optional implementation manner, the specific method for the access device to generate the WUS may be classified into the following two types:

In an optional implementation manner, other access devices in the tracking area of the terminal device, other than the access device, generate a WUS and broadcast the device to the terminal device. Only in practice, only the access device covers the cell in which the terminal device is currently located, so only the access device can wake up the terminal device.

Step 206: After the WUR of the terminal device receives the WUS sent by the access device, the terminal device switches the transceiver of the terminal device from a sleep state to a working state, so that The terminal device is awakened.

Wherein, in an optional implementation manner, the WUS may be a signal that is simple to process, such as a waveform signal, etc., so that the WUR of the terminal device can respond faster after receiving the WUS. In turn, the terminal device can be woken up more quickly.

In an optional implementation manner, when the WUR of the terminal device receives the WUS, the WUR may listen to the WUS every set time. For example, the WUR may listen every 1280 milliseconds. 2 milliseconds. Specifically, the set duration may also be referred to as a listening period. The listening time point of the WUR every the set duration may be referred to as a wake-up occasion (WO), and the WO may be agreed by the access device and the terminal device, It can be directly specified by the access device, and other listening mechanisms can also be used, which is not limited in this application.

In an optional implementation manner, when each WO listens to the WUS, the WUR actually enters a listening state earlier than the expected WO, for example, 1 millisecond in advance, and ends later than the expected listening time. Listening, for example, 1 millisecond later, to avoid the phenomenon of receiving WUS due to clock drift.

Specifically, after receiving the WUS, the WUR of the terminal device may determine that the terminal device needs to be determined according to the first identifier of the terminal device or the second identifier of the terminal device included in the WUS. Was awakened, so the terminal device switches the transceiver of the terminal device from a sleep state to an active state. The specific method for the terminal device to switch the transceiver of the terminal device from the dormant state to the working state may be: the WUR of the terminal device directly wakes up the transceiver of the terminal device, specifically Sending a signal to the transceiver directly to trigger the transceiver of the terminal device to be powered on, so that the transceiver of the terminal device is switched from a sleep state to an active state; or the processor of the terminal device identifies After the WUR of the terminal device receives the WUS, the transceiver controlling the terminal device is switched from a sleep state to an active state. Through the above method, the terminal device can be woken up.

In an optional implementation manner, after the WUR of the terminal device receives the WUS, the terminal device switches the WUR of the terminal device from an active state to a sleep state. This allows the WUR to no longer consume power, thereby making the terminal device more power efficient.

In practice, the WUS may further include an identifier of the access device, so that after the terminal device is woken up by the foregoing steps, the terminal device may identify that the access device needs to communicate with the access device. The terminal device establishes a new RRC connection with the access device, and further communicates with the access device, thereby obtaining downlink data that is forwarded by the core network device to the terminal device by using the access device.

With the method for waking up the terminal device provided by the embodiment of the present application, the terminal device sends an indication message that the terminal device can be in the LPI mode to the access device; after the RRC connection of the terminal device is released, the access device is configured according to the The indication information indicates that the terminal device is in the LPI mode; then, after receiving the paging message sent by the core network device, the access device sends a WUS to the terminal device; the WUR of the terminal device After receiving the WUS, the terminal device switches the transceiver of the terminal device from a sleep state to an active state, so that the terminal device is woken up. In the method, the terminal device sends the indication information that can be in the LPI mode to the access device, so that when the terminal device is in the LPI mode, the WUS is received by the WUR with lower power consumption than the transceiver. The transceiver receives any information, so that the terminal device can save more power consumption, and thus the terminal device can further reduce power consumption, and the power consumption reduction effect is better than the existing terminal device.

Based on the above embodiments, the embodiment of the present application further provides another method for waking up a terminal device, which is applicable to the communication network shown in FIG. 1. Referring to Figure 3, the specific process of the method includes:

Step 301: The terminal device sends the indication information to the first access device, where the indication information is used to indicate that the RRC connection of the terminal device is released, the terminal device is in an LPI mode, and the terminal device is in the LPI mode. The transceiver is in a sleep state, and the wake-up receiver WUR of the terminal device is in an active state.

In an optional implementation manner, the method for performing the step 301 by the terminal device is exactly the same as the method for the terminal device to send the indication information to the access device in the step 201 in the embodiment shown in FIG. For details, refer to the description in step 201.

For the same reason, the description of the indication information in the above step 201 is also described in the detailed description of the indication information, and details are not described herein again.

Step 302: The first access device forwards the indication information to a core network device.

In step 302, the core network device may be configured to identify that the terminal device is in the LPI mode after the RRC connection is released, instead of the traditional idle mode, so that the subsequent device is in the LPI mode. The terminal device wakes up the terminal device by sending a corresponding wake-up message.

Step 303: After the RRC connection is released, the terminal device switches the transceiver of the terminal device from an active state to a sleep state, and the WUR of the terminal device is in a sleep state. Switch to working status.

When the terminal device performs step 303, it is exactly the same as when the step terminal device performs step 202 in the embodiment shown in FIG. 2. Specifically, all the descriptions in the foregoing step 202 can be applied to the step 303. For the specific description of the step 303, refer to the description in the foregoing step 202.

Step 304: After the RRC connection of the terminal device is released, the core network device marks, according to the indication information, that the terminal device is in the LPI mode.

As can be seen from the description in the foregoing step 202, the ECM connection between the core network device and the terminal device and the RRC connection between the terminal device and the access device are synchronously established and synchronously released. The core network device can identify the release of the RRC connection to the terminal device. The core network device determines that the terminal device enters the LPI mode after the RRC connection is released, and the core network device performs the step. 304, so that when the downlink data needs to be sent to the terminal device, the terminal device may be known to be in the LPI mode according to the flag, and then send a wake-up message to the terminal device.

Step 305: When the downlink network data needs to be sent to the terminal device, the core network device sends a wake-up message to the second access device according to the identifier of the terminal device in the LPI mode, where the wake-up message is used to notify The second access device is currently in the LPI mode and needs to be woken up.

The second access device is the terminal device, in an optional implementation manner, the second access device is the terminal device, because the terminal device can be freely moved in multiple cells, and the access device that covers the multiple cells may be different. After the first cell covered by the first access device moves to the second cell, the access device of the second cell is covered.

Specifically, the core network device may determine that the terminal device is currently in the LPI mode after the step 304, so the core network device needs to wake up the terminal device by using the wakeup message.

In an optional implementation manner, the core network device sends the wake-up message to all access devices in the tracking area where the terminal device is currently located, so as to cover the current location of the terminal device. The access device of the second cell can wake up the terminal device by using the wakeup message. Specifically, the second access device may be an access device that covers the second cell where the terminal device is currently located in the all access devices.

In an optional implementation manner, the core network device, when performing step 305, may carry the wakeup message in a paging message, and send the paging message to the second access device. Or the core network device may directly send the wakeup message to the second access device.

Step 306: The second access device generates a WUS, and sends the WUS to the terminal device, so that the terminal device is woken up.

In an optional implementation manner, the wake-up message includes a first identifier of the terminal device, and after receiving the wake-up message, the second access device may pass the The first identity determining is to wake up the terminal device currently in the LPI mode, and therefore, the second access device may determine that the WUS needs to be sent to the terminal device.

Specifically, the method for the second access device to generate the WUS may be classified into the following two types:

The first method: the second access device acquires the first identifier in the wakeup message, and generates the WUS including the first identifier.

a second method: after acquiring the first identifier in the awake message, the second access device acquires a second identifier of the terminal device corresponding to the first identifier, and generates the And the second identifier is an identifier that is allocated by the core network device or other network device to the terminal device during the release of the RRC connection by the terminal device. In the second method, the first identifier and the second identifier are both a digital sequence, and the second identifier is shorter than the sequence of the first identifier, such that by the second method, The WUS including the second identifier generated by the second access device is processed more easily than the WUS directly including the first identifier, so that when the WUR of the terminal device receives the WUS The response is faster.

In an optional implementation manner, the access device other than the second access device of all access devices in the tracking area of the terminal device generates a WUS and broadcasts the The terminal device is only in fact that only the second access device covers the second cell where the terminal device is currently located, so only the second access device can wake up the terminal device.

Step 307: After the WUR of the terminal device receives the WUS sent by the second access device, the terminal device switches the transceiver of the terminal device from a sleep state to a working state, to The terminal device is caused to wake up.

Specifically, the WUS is the same as the WUS in step 206 in the embodiment shown in FIG. 2, and the method and step 206 of the WUR of the terminal device receiving the WUS sent by the second access device are The method for the WUR of the terminal device to receive the WUS sent by the access device is the same. For details, refer to the description of step 206, and details are not described herein.

For the same reason, the method for the terminal device to switch the transceiver of the terminal device from the sleep state to the working state is the same as the method in the step 206, and the detailed description thereof is omitted here.

In practice, the WUS may further include an identifier of the second access device, so that after the terminal device is woken up by the foregoing steps, the terminal device may identify that the second access device needs to be performed. Communication, the terminal device establishes a new RRC connection with the second access device, and further communicates with the second access device, thereby obtaining the core network device by using the second access device. Downlink data forwarded to the terminal device.

The method for waking up the terminal device provided by the embodiment of the present application, the terminal device sends an indication message that the terminal device can be in the LPI mode to the first access device; the first access device forwards the indication message to the core a network device, after the RRC connection of the terminal device is released, the terminal device is marked to be in the LPI mode according to the indication information; and then the second access device receives the core network device After the wake-up message is sent, the WUS is sent to the terminal device; after the WUR of the terminal device receives the WUS, the terminal device switches the transceiver of the terminal device from the sleep state to the working state, so that the device The terminal device is awakened. In the method, the terminal device sends the indication information that can be in the LPI mode to the access device, so that when the terminal device is in the LPI mode, the WUS is received by the WUR with lower power consumption than the transceiver. The transceiver receives any information, so that the terminal device can save more power consumption, and thus the terminal device can further reduce power consumption, and the power consumption reduction effect is better than the existing terminal device.

Based on the above embodiments, the embodiment of the present application further provides another method for waking up a terminal device, which is applicable to the communication network shown in FIG. 1. Referring to FIG. 4, the specific process of the method includes:

Step 401: The terminal device sends the indication information to the access device, where the indication information is used to indicate that the RRC connection of the terminal device is released, the terminal device is in an LPI mode, and the transceiver of the terminal device is in the LPI mode. In the sleep state, the wake-up receiver WUR of the terminal device is in an active state.

Step 402: The access device forwards the indication information to a core network device.

Step 403: After the RRC connection is released, the terminal device switches the transceiver of the terminal device from a working state to a sleep state, and the WUR of the terminal device is in a sleep state. Switch to working status.

Step 404: After the RRC connection of the terminal device is released, the core network device marks, according to the indication information, that the terminal device is in the LPI mode.

Specifically, the foregoing steps 401 to 404 can be referred to the description in step 301 to step 304 in the embodiment shown in FIG. 3, and details are not described herein again.

Step 405: When the downlink network data needs to be sent to the terminal device, the core network device sends a wake-up message to the access device according to the label that the terminal device is in the LPI mode, where the wake-up message is used to notify The access device is currently in the LPI mode and needs to be woken up.

Specifically, the core network device may determine that the terminal device is currently in the LPI mode after the step 404, so the core network device needs to wake up the terminal device by using the wakeup message.

In an optional implementation manner, the core network device sends the wake-up message to all access devices in the tracking area where the terminal device is currently located, so as to cover the current location of the terminal device. The access device of the cell can wake up the terminal device by using the wakeup message. Specifically, when the terminal device does not move in the cell covered by the access device, step 406 is performed after the access device receives the wakeup message.

In an optional implementation manner, the core network device may, when performing step 405, carry the wake-up message in a paging message, and send the paging message to the access device; or The core network device may directly send the wakeup message to the access device.

Step 406: The access device generates a WUS, and sends the WUS to the terminal device, so that the terminal device is woken up.

In an optional implementation manner, the awake message includes a first identifier of the terminal device, and the access device may pass the first end of the terminal device after receiving the wakeup information. The identity determination is to wake up the terminal device currently in the LPI mode, and therefore, the access device may determine that the WUS needs to be sent to the terminal device.

Specifically, the method for generating the WUS by the access device is the same as the method for generating the WUS by the second access device in step 306 in the embodiment shown in FIG. 3 . For details, refer to the related description in step 306 above. It will not be repeated here.

Step 407: After the WUR of the terminal device receives the WUS sent by the access device, the terminal device switches the transceiver of the terminal device from a sleep state to a working state, so that The terminal device is awakened.

Specifically, the WUS is the same as the WUS in step 307 in the embodiment shown in FIG. 3, and the method in which the WUR of the terminal device receives the WUS sent by the access device and the terminal device in step 307 The method for receiving the WUS sent by the second access device is the same as that of the WUR. For details, refer to the description of step 307, and details are not described herein again.

For the same reason, the method for the terminal device to switch the transceiver of the terminal device from the sleep state to the working state is the same as the method in the step 307, and the detailed description thereof is omitted here.

With the method for waking up the terminal device provided by the embodiment of the present application, the terminal device sends an indication message that the terminal device can be in the LPI mode to the access device; the access device forwards the indication message to the core network device, After the RRC connection of the terminal device is released, the core network device marks, according to the indication information, that the terminal device is in the LPI mode; then the access device receives a wakeup message sent by the core network device. After the WUR of the terminal device receives the WUS, the terminal device switches the transceiver of the terminal device from the sleep state to the working state, so that the terminal device is wake. In the method, the terminal device sends the indication information that can be in the LPI mode to the access device, so that when the terminal device is in the LPI mode, the WUS is received by the WUR with lower power consumption than the transceiver. The transceiver receives any information, so that the terminal device can save more power consumption, and thus the terminal device can further reduce power consumption, and the power consumption reduction effect is better than the existing terminal device.

Based on the above embodiment, the embodiment of the present application further provides a terminal device, which is applied to the communication system shown in FIG. 1 for implementing the wake-up terminal device as shown in FIG. 2, FIG. 3, and FIG. The function of the terminal device in the method. Referring to FIG. 5, the terminal device 500 includes a transceiver 501, a processor 502, and a WUR 503. Optionally, the terminal device 500 further includes a memory 504, where:

The processor 502 can be a central processing unit (CPU), a network processor (NP), or a combination of a CPU and an NP.

The processor 502 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general array logic (GAL), or any combination thereof.

The transceiver 501, the processor 502, the WUR 503, and the memory 504 are connected to each other. Optionally, the transceiver 501, the processor 502, the WUR 503, and the memory 504 are mutually connected by a bus 505; the bus 505 may include an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 5, but it does not mean that there is only one bus or one type of bus.

The memory 504 may include a volatile memory such as a random-access memory (RAM); the memory may also include a non-volatile memory such as a flash memory ( A flash memory, also called a flash memory, a hard disk drive (HDD) or a solid-state drive (SSD); the memory 504 may also include a combination of the above types of memories.

When the terminal device 500 implements the method for waking up the terminal device as shown in FIG. 2, FIG. 3 or FIG. 4:

The transceiver 501 is configured to send indication information to the first access device, where the indication information is used to indicate that the radio resource control RRC connection of the terminal device 500 is released, and the terminal device 500 is in a low power idle LPI. In the LPI mode, the transceiver 501 of the terminal device is in a dormant state, and the WUR 503 of the terminal device is in an active state. In an optional implementation manner, the indication information is included in the terminal device. The capability information of the WUR; or the indication information is information including content that the terminal device uses the LPI mode;

The processor 502 is configured to: after the RRC connection is released, switch the transceiver of the terminal device from an active state to a sleep state, and switch the WUR of the terminal device from a sleep state to a working state. status;

The WUR 503 is configured to receive a WUS sent by the second access device, and switch the transceiver 501 of the terminal device 500 from a sleep state to an active state according to the WUS, so that the terminal device is woken up; Or, after the processor 502 determines that the WUR 503 receives the WUS, the transceiver 501 of the terminal device 500 is switched from a sleep state to an active state, so that the terminal device is woken up; The second access device is the first access device, or the second access device is after the first cell covered by the first access device is moved to the second cell, and the coverage is An access device of the second cell;

In an optional implementation manner, when the WUR 503 switches the transceiver 501 from a sleep state to an active state, the transceiver may be specifically connected to the transceiver through an interface between the WUR 503 and the transceiver 501. 501 sends a signal that triggers the transceiver 501 to power up to cause the transceiver 501 to switch from the sleep state to the active state. The interface between the WUR 503 and the transceiver 501 is as shown in the interface 507 in FIG.

In an optional implementation manner, the terminal device 500 may send the indication information to the first access device when accessing the first access device; or the terminal device 500 may further After receiving the mode query message sent by the first access device, returning the indication information to the first access device.

In an optional implementation manner, when the transceiver 501 is transceiving data, and when the WUR 503 receives data, the transceiver may send or receive data through an antenna, or may be controlled by the processor 502 to transmit or Receiving data; wherein, when the data is transmitted and received by the antenna, the transceiver 501 and the WUR may share an antenna, such as the antenna 506 shown in FIG. 5, and different antennas may be used respectively, which are not enumerated here.

In an optional implementation manner, when receiving the WUS, the WUR 503 may listen to the WUS every set time. For example, the WUR 503 may listen for 2 milliseconds every 1280 milliseconds.

In an optional implementation manner, the processor is further configured to: after the transceiver 501 of the terminal device 500 is switched from a sleep state to an active state, the WUR 503 of the terminal device 500 is Switch from working state to sleep state.

The memory 504 can be used to store programs and the like. In particular, the program can include program code, the program code including computer operating instructions. The processor 502 executes an application stored in the memory 504 to implement the above functions, thereby implementing the method for waking up the terminal device as shown in FIG. 2, FIG. 3 or FIG.

The terminal device provided by the embodiment of the present application sends an indication message that the terminal device can be in the LPI mode to the first access device; and after the WUR of the terminal device receives the WUS sent by the second access device, And the terminal device switches the transceiver of the terminal device from a sleep state to an active state, so that the terminal device is woken up. In this way, the terminal device sends the indication information that can be in the LPI mode to the access device, so that when the terminal device is in the LPI mode, the WUS is received by the WUR with lower power consumption than the transceiver, without the transceiver. Receiving any information, the terminal device can save power consumption, and the terminal device can further reduce power consumption, and the power consumption of the existing terminal device is reduced.

Based on the foregoing embodiment, the embodiment of the present application further provides an access device, where the access device is applied to the communication system shown in FIG. 1 for implementing access in the method for waking up the terminal device as shown in FIG. 2 . The function of the device. Referring to FIG. 6, the access device 600 includes a wireless transceiver 601, a processor 602, a memory 603, and a backhaul communication interface 604, where:

The processor 602 can be a CPU, an NP or a combination of a CPU and an NP. The processor 602 may further include a hardware chip. The above hardware chip may be an ASIC, a PLD, or a combination thereof. The above PLD may be a CPLD, an FPGA, a GAL, or any combination thereof.

The wireless transceiver 601, the processor 602, the memory 603, and the backhaul communication interface 604 are connected to each other. Optionally, the wireless transceiver 601, the processor 602, the memory 603, and the backhaul communication interface 604 are mutually connected by a bus 605; the bus 605 may include an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 6, but it does not mean that there is only one bus or one type of bus.

The memory 603 can include volatile memory, such as RAM; the memory 603 can also include non-volatile memory, such as flash memory, HDD or SSD; the memory 603 can also include a combination of the types of memory described above.

When the access device 600 implements the method for waking up the terminal device as shown in FIG. 2:

The wireless transceiver 601 is configured to receive the indication information sent by the terminal device, where the indication information is used to indicate that the radio resource control RRC connection of the terminal device is released, and the terminal device is in a low power idle LPI mode. In the LPI mode, the transceiver of the terminal device is in a dormant state, and the wake-up receiver WUR of the terminal device is in an active state. In an optional implementation manner, the indication information is included in the terminal device. Determining the capability information of the WUR; or the indication information is information including content of the LPI mode used by the terminal device;

The processor 602 is configured to mark, after the RRC connection of the terminal device is released, that the terminal device is in the LPI mode according to the indication information;

The memory 603 is configured to store, after the processor 602 marks that the terminal device is in the LPI mode, a flag that the terminal device is in the LPI mode;

The backhaul communication interface 604 is configured to receive a paging message sent by the core network device for the terminal device;

The processor 602 is further configured to: after the backhaul communication interface 604 receives the paging message sent by the core network device for the terminal device, the terminal device stored in the memory 603 is in the LPI mode. Tag generation WUS;

The wireless transceiver 601 is further configured to send the WUS to the terminal device, so that the terminal device is woken up.

In an optional implementation manner, the wireless transceiver 601 is further configured to: before receiving the indication information sent by the terminal device, send a first mode query message to the terminal device, so that the Returning, by the terminal device, the indication information; or after receiving the second mode query message sent by the core network device, forwarding the second mode query message to the terminal device, so that the terminal device returns the indication information.

In an optional implementation manner, the wireless transceiver 601 can transmit and receive data through an antenna when transmitting and receiving data, for example, the antenna 606 shown in FIG. 6; when the wireless transceiver 601 receives and receives data, the wireless transceiver 601 can also The processor 602 controls the wireless transceiver 601 to send and receive data.

In an optional implementation manner, the backhaul communication interface 604 can control the backhaul communication interface 604 to send and receive data when the backhaul communication interface 604 is transmitting and receiving data.

Optionally, the memory 603 can also be used to store programs and the like. In particular, the program can include program code, the program code including computer operating instructions. The processor 602 executes an application stored in the memory 603 to implement the above functions, thereby implementing a method for waking up the terminal device as shown in FIG. 2.

The access device provided by the embodiment of the present application receives the indication information that the terminal device can be in the LPI mode, and after the RRC connection of the terminal device is released, the terminal device is marked according to the indication information. The LPI mode is described; after the access device receives the paging message sent by the core network device, the WUS is sent to the terminal device; after the WUR of the terminal device receives the WUS, the terminal device The transceiver of the terminal device is switched from a sleep state to an active state to cause the terminal device to be woken up. In this way, the terminal device sends the indication information that can be in the LPI mode to the access device, so that when the terminal device is in the LPI mode, the WUS is received by the WUR with lower power consumption than the transceiver, without the transceiver. Receiving any information, the terminal device can save power consumption, and the terminal device can further reduce power consumption, and the power consumption of the existing terminal device is reduced.

Based on the foregoing embodiment, the embodiment of the present application further provides an access device, where the access device is applied to the communication system shown in FIG. 1 , and is used to implement the first method in the method for waking up the terminal device as shown in FIG. 3 . The function of the access device. As shown in FIG. 7, the access device 700 includes a wireless transceiver 701, a backhaul communication interface 702, and a processor 703. Optionally, the access device 700 may further include a memory 704, where:

The processor 703 may be a CPU, an NP or a combination of a CPU and an NP. The processor 702 may further include a hardware chip. The above hardware chip may be an ASIC, a PLD, or a combination thereof. The above PLD may be a CPLD, an FPGA, a GAL, or any combination thereof.

The wireless transceiver 701, the backhaul communication interface 702, the processor 703, and the memory 704 are connected to each other. Optionally, the wireless transceiver 701, the backhaul communication interface 702, the processor 703, and the memory 704 are mutually connected by a bus 705; the bus 705 may include an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 7, but it does not mean that there is only one bus or one type of bus.

The memory 704 can include volatile memory, such as RAM; the memory 704 can also include non-volatile memory, such as flash memory, HDD or SSD; the memory 704 can also include a combination of the types of memory described above.

When the access device 700 implements the method for waking up the terminal device as shown in FIG. 3:

The wireless transceiver 701 is configured to receive the indication information sent by the terminal device, where the indication information is used to indicate that the radio resource control RRC connection of the terminal device is released, and the terminal device is in a low power idle LPI mode. In the LPI mode, the transceiver of the terminal device is in a dormant state, and the wake-up receiver WUR of the terminal device is in an active state. In an optional implementation manner, the indication information is included in the terminal device. Determining the capability information of the WUR; or the indication information is information including content of the LPI mode used by the terminal device;

The backhaul communication interface 702 is configured to forward the indication information to the core network device, so that after the RRC connection of the terminal device is released, the core network device marks the terminal device according to the indication information. In the LPI mode.

In an optional implementation manner, the wireless transceiver 701 is further configured to: before receiving the indication information sent by the terminal device, send a first mode query message to the terminal device, so that the Returning, by the terminal device, the indication information; or after receiving the second mode query message sent by the core network device, forwarding the second mode query message to the terminal device, so that the terminal device returns the indication information.

In an optional implementation manner, the backhaul communication interface 702 is further configured to receive a wakeup message sent by the core network device. Specifically, the backhaul communication interface 702 is sent by the core network device. The waking message is specifically used to: receive a paging message sent by the core network device, where the paging message includes the wake-up message; and acquire the wake-up message in the paging message.

The processor 703 is further configured to generate a WUS after the backhaul communication interface 702 receives the wake-up message sent by the core network device, where the wake-up message is that the core network device needs to send a downlink to the terminal device. The data is sent to the access device, and the wake-up message is used to notify the access device that the terminal device is currently in the LPI mode and needs to be woken up;

The wireless transceiver 701 is further configured to: after the processor 703 generates the WUS, send the WUS to the terminal device, so that the terminal device is woken up.

In an optional implementation manner, the wireless transceiver 701 can transmit and receive data through an antenna when transmitting and receiving data, such as the antenna 706 shown in FIG. 7; when the data is transmitted and received, the wireless transceiver 701 can also be used by the wireless transceiver 701. The processor 703 controls the wireless transceiver 701 to send and receive data.

In an optional implementation manner, when the backhaul communication interface 702 is transceiving data, the backhaul communication interface 702 can be controlled by the processor 703 to send and receive data.

Optionally, the memory 704 can also be used to store programs and the like. In particular, the program can include program code, the program code including computer operating instructions. The processor 703 executes an application stored in the memory 704 to implement the above functions, thereby implementing a method for waking up the terminal device as shown in FIG. 3.

After the access device provided by the embodiment of the present application receives the indication message that the terminal device can be in the LPI mode, the indication message is forwarded to the core network device, so that the core network device is in the After the RRC connection of the terminal device is released, the terminal device is marked to be in the LPI mode according to the indication information. In the subsequent process, the core network device sends a wake-up message for the terminal device through the second access device, so that the second access device sends a WUS to the terminal device, so that the terminal After receiving the WUS, the WUR of the device causes the terminal device to be woken up. In this way, the terminal device sends the indication information that can be in the LPI mode to the access device, so that when the terminal device is in the LPI mode, the WUS is received by the WUR with lower power consumption than the transceiver, without the transceiver. Receiving any information, the terminal device can save power consumption, and the terminal device can further reduce power consumption, and the power consumption of the existing terminal device is reduced.

Based on the above embodiment, the embodiment of the present application further provides an access device, which is applied to the communication system shown in FIG. 1 for implementing access in a method for waking up a terminal device as shown in FIG. The function of the device. As shown in FIG. 8, the access device 800 includes a wireless transceiver 801, a backhaul communication interface 802, and a processor 803. Optionally, the access device 800 may further include a memory 804, where:

The processor 803 can be a CPU, an NP or a combination of a CPU and an NP. The processor 802 may further include a hardware chip. The above hardware chip may be an ASIC, a PLD, or a combination thereof. The above PLD may be a CPLD, an FPGA, a GAL, or any combination thereof.

The wireless transceiver 801, the backhaul communication interface 802, the processor 803, and the memory 804 are connected to each other. Optionally, the wireless transceiver 801, the backhaul communication interface 802, the processor 803, and the memory 804 are connected to each other through a bus 805. The bus 805 may include an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 8, but it does not mean that there is only one bus or one type of bus.

The memory 804 can include volatile memory, such as RAM; the memory 804 can also include non-volatile memory, such as flash memory, HDD or SSD; the memory 804 can also include a combination of the types of memory described above.

When the access device 800 implements the method for waking up the terminal device as shown in FIG. 4:

The wireless transceiver 801 is configured to receive the indication information sent by the terminal device, where the indication information is used to indicate that the radio resource control RRC connection of the terminal device is released, and the terminal device is in a low power idle LPI mode. In the LPI mode, the transceiver of the terminal device is in a dormant state, and the wake-up receiver WUR of the terminal device is in an active state. In an optional implementation manner, the indication information is included in the terminal device. Determining the capability information of the WUR; or the indication information is information including content of the LPI mode used by the terminal device;

The backhaul communication interface 802 is configured to forward the indication information to the core network device, so that after the RRC connection of the terminal device is released, the core network device marks the terminal device according to the indication information. And receiving the wake-up message sent by the core network device; wherein, in an optional implementation manner, the backhaul communication interface 802 is configured to receive the wake-up message sent by the core network device Specifically, the method is: receiving a paging message sent by the core network device, where the paging message includes the wake-up message; and acquiring the wake-up message in the paging message;

The processor 803 is configured to generate a WUS after the backhaul communication interface 802 receives the wakeup message sent by the core network device, where the wakeup message is sent by the core network device to the terminal device. When the downlink data is sent to the access device, the wake-up message is used to notify the access device that the terminal device is currently in the LPI mode, and needs to be woken up;

The wireless transceiver 801 is further configured to send the WUS to the terminal device, so that the terminal device is woken up.

In an optional implementation manner, the wireless transceiver 801 is further configured to: before receiving the indication information sent by the terminal device, send a first mode query message to the terminal device, so that the Returning, by the terminal device, the indication information; or after receiving the second mode query message sent by the core network device, forwarding the second mode query message to the terminal device, so that the terminal device returns the indication information.

In an optional implementation manner, the wireless transceiver 801 can transmit and receive data through an antenna when transmitting and receiving data, such as the antenna 806 shown in FIG. 8; when the wireless transceiver 801 receives and receives data, the wireless transceiver 801 can also The processor 803 controls the wireless transceiver 801 to send and receive data.

In an optional implementation manner, when the backhaul communication interface 802 is transmitting and receiving data, the backhaul communication interface 802 can be controlled by the processor 803 to send and receive data.

Optionally, the memory 803 can also be used to store programs and the like. In particular, the program can include program code, the program code including computer operating instructions. The processor 803 executes an application stored in the memory 804 to implement the above functions, thereby implementing a method for waking up the terminal device as shown in FIG. 4.

After the access device provided by the embodiment of the present application receives the indication message that the terminal device can be in the LPI mode, the indication message is forwarded to the core network device, so that the core network device is in the After the RRC connection of the terminal device is released, the terminal device is marked to be in the LPI mode according to the indication information; and then the access device sends a wake-up message sent by the core network device to the terminal device after receiving the wake-up message sent by the core network device. The WUS, after the WUR of the terminal device receives the WUS, the terminal device is woken up. In this way, the terminal device sends the indication information that can be in the LPI mode to the access device, so that when the terminal device is in the LPI mode, the WUS is received by the WUR with lower power consumption than the transceiver, without the transceiver. Receiving any information, the terminal device can save power consumption, and the terminal device can further reduce power consumption, and the power consumption of the existing terminal device is reduced.

Based on the above embodiment, the embodiment of the present application further provides a core network device, where the core network device is applied to the communication system shown in FIG. 1 , and is used to implement the core network in the method for waking up the terminal device as shown in FIG. 4 . The function of the device. Referring to FIG. 9, the core network device 900 includes a backhaul communication interface 901, a processor 902, and a memory 903, where:

The processor 902 can be a CPU, an NP or a combination of a CPU and an NP. The processor 902 may further include a hardware chip. The above hardware chip may be an ASIC, a PLD, or a combination thereof. The above PLD may be a CPLD, an FPGA, a GAL, or any combination thereof.

The backhaul communication interface 901, the processor 902, and the memory 903 are connected to each other. Optionally, the backhaul communication interface 901, the processor 902, and the memory 903 are connected to each other by a bus 904; the bus 904 may include an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 9, but it does not mean that there is only one bus or one type of bus.

The memory 903 can include volatile memory, such as RAM; the memory 903 can also include non-volatile memory, such as flash memory, HDD or SSD; the memory 903 can also include a combination of the types of memory described above.

When the core network device 900 implements the method for waking up the terminal device as shown in FIG. 4:

The backhaul communication interface 901 receives the indication information sent by the terminal device forwarded by the first access device, where the indication information is used to indicate that the radio resource control RRC connection of the terminal device is released, and the terminal device is in low power consumption. An idle LPI mode, in which the transceiver of the terminal device is in a sleep state, and the wakeup receiver WUR of the terminal device is in an active state;

The processor 902, after the RRC connection of the terminal device is released, marking, according to the indication information, that the terminal device is in the LPI mode;

The memory 903 is configured to store, after the processor 902 marks that the terminal device is in the LPI mode, a flag that the terminal device is in the LPI mode;

The backhaul communication interface 901 is further configured to send, when the downlink data needs to be sent to the terminal device, a wakeup to the at least one second access device according to the identifier of the terminal device that is stored in the LPI mode. And the waking message is used to notify the at least one second access device that the terminal device is currently in the LPI mode and needs to be woken up. The first access device is any one of the at least one second access device, or is an access device different from any one of the at least one second access device; the at least one The second access device is all access devices in the tracking area of the terminal device.

In an optional implementation manner, the backhaul communication interface 901 sends mode query information to the access device to receive the access information before receiving the indication information sent by the terminal device forwarded by the first access device. After receiving the mode query, the device forwards the mode query to the terminal device, so that the terminal device returns the indication information.

In an optional implementation, the backhaul communication interface 901 is specifically configured to: when the awake message is sent to the at least one second access device, the wake-up message is carried in a paging message. And sending the paging message to the at least one second access device.

In an optional implementation manner, when the backhaul communication interface 901 is transmitting and receiving data, the backhaul communication interface 901 can be controlled by the processor 902 to send and receive data.

Optionally, the memory 903 can also be used to store programs and the like. In particular, the program can include program code, the program code including computer operating instructions. The processor 902 executes an application stored in the memory 903 to implement the above functions, thereby implementing a method for waking up the terminal device as shown in FIG.

The core network device provided by the embodiment of the present application, after receiving the indication message that the terminal device that is sent by the terminal device that is forwarded by the first access device can be in the LPI mode, after the RRC connection of the terminal device is released, according to the The indication information indicates that the terminal device is in the LPI mode; and sends a wake-up message to at least one second access device when the downlink data needs to be sent to the terminal device, so as to cover a cell where the terminal device is currently located. The access device sends a WUS to the terminal device, and after the WUR of the terminal device receives the WUS, the terminal device is woken up. In this way, the terminal device sends the indication information that can be in the LPI mode to the access device, so that when the terminal device is in the LPI mode, the WUS is received by the WUR with lower power consumption than the transceiver, without the transceiver. Receiving any information, the terminal device can save power consumption, and the terminal device can further reduce power consumption, and the power consumption of the existing terminal device is reduced.

In summary, the embodiment of the present application provides a method and a device for waking up a terminal device, where the terminal device sends an indication message that the terminal device can be in an LPI mode to the access device; the access device is in the terminal device. After the RRC connection of the device is released, the terminal device is marked to be in the LPI mode according to the indication information, or the indication message is forwarded to the core network device, so that the core network device is connected to the RRC device of the terminal device. After the release, the terminal device is marked to be in the LPI mode according to the indication information; then, after receiving the paging message or the wake-up message sent by the core network device, the access device sends a WUS to the terminal device; After the WUR of the terminal device receives the WUS, the terminal device switches the transceiver of the terminal device from a sleep state to an active state, so that the terminal device is woken up. In the method, the terminal device sends the indication information that can be in the LPI mode to the access device, so that when the terminal device is in the LPI mode, the WUS is received by the WUR with lower power consumption than the transceiver. The transceiver receives any information, so that the terminal device can save more power consumption, and thus the terminal device can further reduce power consumption, and the power consumption reduction effect is better than the existing terminal device.

Those skilled in the art will appreciate that embodiments of the present application can be provided as a method, system, or computer program product. Thus, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware. Moreover, the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

It is apparent that those skilled in the art can make various modifications and variations to the embodiments of the present application without departing from the scope of the embodiments of the present application. Thus, it is intended that the present invention cover the modifications and variations of the embodiments of the present invention.

Claims

A method for waking up a terminal device, comprising:

The terminal device sends the indication information to the first access device, where the indication information is used to indicate that the radio resource control RRC connection of the terminal device is released, the terminal device is in a low power idle LPI mode, and the LPI mode is used. The transceiver of the terminal device is in a dormant state, and the wakeup receiver WUR of the terminal device is in an active state;

After the terminal device releases the RRC connection, the terminal device switches the transceiver of the terminal device from a working state to a sleep state, and switches the WUR of the terminal device from a sleep state to a working state. status;

After the WUR of the terminal device receives the wake-up signal WUS sent by the second access device, the terminal device switches the transceiver of the terminal device from a sleep state to an active state, so that the terminal device Was awakened;

The second access device is the first access device, or the second access device is after the first cell that is covered by the first access device is moved to the second cell. And covering an access device of the second cell.
The method according to claim 1, wherein after the terminal device switches the transceiver of the terminal device from a sleep state to a working state, the method further includes:

The terminal device switches the WUR of the terminal device from an active state to a sleep state.
A method for waking up a terminal device, comprising:

The access device receives the indication information sent by the terminal device, where the indication information is used to indicate that the radio resource control RRC connection of the terminal device is released, the terminal device is in a low power idle LPI mode, and the LPI mode is The transceiver of the terminal device is in a dormant state, and the wakeup receiver WUR of the terminal device is in an active state;

After the RRC connection of the terminal device is released, the access device marks, according to the indication information, that the terminal device is in the LPI mode;

After receiving the paging message sent by the core network device for the terminal device, the access device generates a wake-up signal WUS according to the identifier of the terminal device in the LPI mode, and sends the WUS to the a terminal device to cause the terminal device to be woken up.
A method for waking up a terminal device, comprising:

The access device receives the indication information sent by the terminal device, where the indication information is used to indicate that the radio resource control RRC connection of the terminal device is released, the terminal device is in a low power idle LPI mode, and the LPI mode is The transceiver of the terminal device is in a dormant state, and the wakeup receiver WUR of the terminal device is in an active state;

The access device forwards the indication information to the core network device, so that after the RRC connection of the terminal device is released, the core network device marks, according to the indication information, that the terminal device is in the LPI mode.
The method of claim 4, wherein the method further comprises:

The access device generates a wake-up signal WUS after receiving the wake-up message sent by the core network device, where the wake-up message is sent to the access device when the core network device needs to send downlink data to the terminal device. The wake-up message is used to notify the access device that the terminal device is currently in the LPI mode and needs to be woken up;

The access device sends the WUS to the terminal device, so that the terminal device is woken up.
The method of claim 5, wherein the receiving, by the access device, the wake-up message sent by the core network device comprises:

Receiving, by the access device, a paging message sent by the core network device, where the paging message includes the wake-up message;

The access device acquires the wakeup message in the paging message.
A method for waking up a terminal device, comprising:

The access device receives the indication information sent by the terminal device, where the indication information is used to indicate that the radio resource control RRC connection of the terminal device is released, the terminal device is in a low power idle LPI mode, and the LPI mode is The transceiver of the terminal device is in a dormant state, and the wakeup receiver WUR of the terminal device is in an active state;

The access device forwards the indication information to the core network device, so that after the RRC connection of the terminal device is released, the core network device marks, according to the indication information, that the terminal device is in the LPI mode;

The access device generates a wake-up signal WUS after receiving the wake-up message sent by the core network device, where the wake-up message is sent to the access device when the core network device needs to send downlink data to the terminal device. The wake-up message is used to notify the access device that the terminal device is currently in the LPI mode and needs to be woken up;

The access device sends the WUS to the terminal device, so that the terminal device is woken up.
The method of claim 7, wherein the access device receives the wake-up message sent by the core network device, including:

Receiving, by the access device, a paging message sent by the core network device, where the paging message includes the wake-up message;

The access device acquires the wakeup message in the paging message.
A method for waking up a terminal device, comprising:

The core network device receives the indication information sent by the terminal device forwarded by the first access device, where the indication information is used to indicate that the radio resource control RRC connection of the terminal device is released, and the terminal device is in a low power idle LPI mode. The transceiver of the terminal device is in a sleep state in the LPI mode, and the wakeup receiver WUR of the terminal device is in an active state;

After the RRC connection of the terminal device is released, the core network device marks, according to the indication information, that the terminal device is in the LPI mode;

When the downlink network data needs to be sent to the terminal device, the core network device sends a wake-up message to the at least one second access device according to the identifier of the terminal device in the LPI mode, where the wake-up message is used to notify the The at least one second access device is currently in the LPI mode and needs to be woken up;

The first access device is any one of the at least one second access device, or is an access device different from any one of the at least one second access device; the at least one The second access device is all access devices in the tracking area of the terminal device.
The method of claim 9, wherein the sending, by the core network device, the wake-up message to the at least one second access device comprises:

The core network device carries the wake-up message in a paging message, and sends the paging message to the at least one second access device.
A terminal device, comprising:

a transceiver, configured to send, to the first access device, the indication information, where the indication information is used to indicate that the radio resource control RRC connection of the terminal device is released, the terminal device is in a low power idle LPI mode, where the LPI is The transceiver of the terminal device is in a sleep state, and the wakeup receiver WUR of the terminal device is in an active state;

a processor, configured to: after the RRC connection is released, switch the transceiver of the terminal device from a working state to a sleep state, and switch the WUR of the terminal device from a sleep state to an active state;

The WUR is configured to receive the wake-up signal WUS sent by the second access device, and switch the transceiver of the terminal device from the sleep state to the working state according to the WUS, so that the terminal device is woken up; After determining that the WUR receives the WUS, the processor switches the transceiver of the terminal device from a sleep state to an active state, so that the terminal device is woken up;

The second access device is the first access device, or the second access device is after the first cell that is covered by the first access device is moved to the second cell. And covering an access device of the second cell.
The terminal device according to claim 11, wherein the processor is further configured to switch the WUR from an active state to a sleep state after the transceiver is switched from a sleep state to an active state.
An access device, comprising:

a wireless transceiver, configured to receive indication information sent by the terminal device, where the indication information is used to indicate that the radio resource control RRC connection of the terminal device is released, the terminal device is in a low power idle LPI mode, and the LPI mode is The transceiver of the terminal device is in a dormant state, and the wakeup receiver WUR of the terminal device is in an active state;

a processor, after the RRC connection of the terminal device is released, marking, according to the indication information, that the terminal device is in the LPI mode;

a memory, configured to store a mark that the terminal device is in the LPI mode;

a backhaul communication interface, configured to receive a paging message sent by the core network device for the terminal device;

The processor is further configured to generate a wake-up signal WUS according to the tag stored in the memory by the terminal device in the LPI mode;

The wireless transceiver is further configured to send the WUS to the terminal device, so that the terminal device is woken up.
An access device, comprising:

a wireless transceiver, configured to receive indication information sent by the terminal device, where the indication information is used to indicate that the radio resource control RRC connection of the terminal device is released, the terminal device is in a low power idle LPI mode, and the LPI mode is The transceiver of the terminal device is in a dormant state, and the wakeup receiver WUR of the terminal device is in an active state;

a backhaul communication interface, configured to forward the indication information to the core network device, so that after the RRC connection of the terminal device is released, the core network device marks, according to the indication information, that the terminal device is in the LPI mode;

And a processor, configured to control the wireless transceiver and the backhaul communication interface to send and receive data.
The access device of claim 14 wherein:

The backhaul communication interface is further configured to receive a wakeup message sent by the core network device;

The processor is further configured to generate a wake-up signal WUS after the backhaul communication interface receives the wake-up message sent by the core network device, where the wake-up message is when the core network device needs to send downlink data to the terminal device. Sending to the access device, the wake-up message is used to notify the access device that the terminal device is currently in the LPI mode, and needs to be woken up;

The wireless transceiver is further configured to send the WUS to the terminal device, so that the terminal device is woken up.
The access device according to claim 15, wherein the backhaul communication interface, when receiving the wakeup message sent by the core network device, is specifically used to:

Receiving a paging message sent by the core network device, where the paging message includes the wake-up message;

Obtaining the wakeup message in the paging message.
An access device, comprising:

a wireless transceiver, configured to receive indication information sent by the terminal device, where the indication information is used to indicate that the radio resource control RRC connection of the terminal device is released, the terminal device is in a low power idle LPI mode, and the LPI mode is The transceiver of the terminal device is in a dormant state, and the wakeup receiver WUR of the terminal device is in an active state;

a backhaul communication interface, configured to forward the indication information to the core network device, so that after the RRC connection of the terminal device is released, the core network device marks, according to the indication information, that the terminal device is in the An LPI mode; and receiving a wakeup message sent by the core network device;

a processor, configured to generate a wake-up signal WUS after the backhaul communication interface receives the wake-up message sent by the core network device, where the wake-up message is that the core network device needs to send downlink data to the terminal device The awake message is sent to the access device, and the awake message is used to notify the access device that the terminal device is currently in the LPI mode and needs to be woken up;

The wireless transceiver is further configured to send the WUS to the terminal device, so that the terminal device is woken up.
The access device according to claim 17, wherein the backhaul communication interface is specifically configured to: when receiving the wakeup message sent by the core network device:

Receiving a paging message sent by the core network device, where the paging message includes the wake-up message;

Obtaining the wakeup message in the paging message.
A core network device, comprising:

The backhaul communication interface receives the indication information sent by the terminal device forwarded by the first access device, where the indication information is used to indicate that the radio resource control RRC connection of the terminal device is released, and the terminal device is in a low power idle LPI mode. The transceiver of the terminal device is in a sleep state in the LPI mode, and the wakeup receiver WUR of the terminal device is in a working state;

The processor, after the RRC connection of the terminal device is released, marking, according to the indication information, that the terminal device is in the LPI mode;

a memory, configured to store a mark that the terminal device is in the LPI mode;

The backhaul communication interface is further configured to: when the downlink data needs to be sent to the terminal device, send a wakeup message to the at least one second access device according to the identifier of the terminal device that is stored in the LPI mode. The wake-up message is used to notify the at least one second access device that the terminal device is currently in the LPI mode, and needs to be woken up;

The first access device is any one of the at least one second access device, or is an access device different from any one of the at least one second access device; the at least one The second access device is all access devices in the tracking area of the terminal device.
The core network device according to claim 19, wherein the backhaul communication interface is specifically configured to: when the wakeup message is sent to the at least one second access device:

The wake-up message is carried in a paging message, and the paging message is sent to the at least one second access device.
A computer storage medium, wherein the computer storage medium stores computer executable instructions, the computer executable instructions, when called by the computer, for causing the computer to perform any of claims 1-10 The method described in the item.
A computer program product comprising instructions, wherein the computer program product, when run on a computer, causes the computer to perform the method of any of claims 1-10.
A chip, characterized in that the chip is connected to a memory for reading and executing program instructions stored in the memory to implement the method of any of claims 1-10.