CN109429318B

CN109429318B - Method and device for awakening terminal equipment

Info

Publication number: CN109429318B
Application number: CN201710911473.0A
Authority: CN
Inventors: 丁志明; 韩云博; 庄宏成; 杜振国
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-08-22
Filing date: 2017-09-29
Publication date: 2021-04-09
Anticipated expiration: 2037-09-29
Also published as: CN109429318A

Abstract

A method and a device for waking up a terminal device are used for solving the problem that a transceiver in the terminal device needs to periodically listen to paging messages when the terminal device is in an idle mode in the prior art, so that the power saving effect of the terminal device is poor. The terminal equipment sends an indication message that the terminal equipment can be in an LPI mode to the access equipment; the access equipment marks that the terminal equipment is in the LPI mode according to the indication information after the RRC connection of the terminal equipment is released, or forwards the indication message to the core network equipment so that the core network equipment marks that the terminal equipment is in the LPI mode according to the indication information after the RRC connection is released; the access equipment sends the WUS to the terminal equipment after receiving the paging message or the awakening message sent by the core network equipment; and after the WUR of the terminal equipment receives the WUS, the terminal equipment switches the transceiver of the terminal equipment from a dormant state to a working state so as to wake up the terminal equipment.

Description

Method and device for awakening terminal equipment

The present application claims priority of chinese patent application with application number 201710723933.7 entitled "a method and apparatus for supporting power saving for user equipment" filed in 2017, 08, month 22, which is incorporated herein by reference in its entirety.

Technical Field

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

Background

Energy conservation and emission reduction are topics which are currently concerned globally, and the equipment is required to reduce the power consumption of the equipment to the greatest extent on the premise of not influencing services, so that the purposes of energy conservation and emission reduction are achieved.

Currently, in a communication system, a terminal device does not need to communicate with a network side, that is, the terminal device enters an idle mode after a Radio Resource Control (RRC) connection between the terminal device and the network side is released, so that the terminal device can save power and reduce power consumption. And the terminal equipment enters an idle mode, specifically, a transceiver in the terminal equipment enters the idle mode. The method comprises the steps that after RRC connection between terminal equipment and a network side is released, core network equipment on the network side marks that the terminal equipment enters an idle mode, when downlink data need to be sent to the terminal equipment in the idle mode, paging messages are sent to all access equipment in a tracking area where the terminal equipment is located, so that the paging messages are forwarded to the terminal equipment through the access equipment, and when the terminal equipment receives the paging messages, the core network equipment enters a working state, namely the terminal equipment is awakened, specifically, a transceiver in the terminal equipment is awakened, so that the terminal equipment communicates with the network side subsequently. Wherein the tracking area comprises a plurality of cells which can freely move, and the plurality of 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 whether there is a paging message sent to the terminal device, and if the transceiver does not listen to the paging message, the transceiver continues to enter the sleep state. It is known that a transceiver of a terminal device generates a large amount of power consumption when operating, that is, the transceiver of the terminal device also consumes a large amount of power by the terminal device when listening to paging messages, which causes a large amount of power consumption by the terminal device. Based on the above situation, the longer the period of monitoring is, the better the effect of saving electric energy is, but if the period is too long, the terminal device may not receive the paging message from the network side in time, and the downlink data sent to the terminal device by the network side may not be received in time, resulting in 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 effect of saving power and reducing power consumption of the terminal device is not very good.

Disclosure of Invention

The application provides a method and a device for waking up a terminal device, which are used for solving the problem that in the prior art, when the terminal device is in an idle mode, a transceiver in the terminal device needs to periodically listen to a paging message, so that the terminal device is power-saving and the effect of reducing power consumption is poor.

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

the method comprises the steps that the terminal equipment sends indication information to access equipment, and after RRC connection is released, a transceiver of the terminal equipment is switched from a working state to a dormant state, and a wake-up receiver (WUR) of the terminal equipment is switched from the dormant state to the working state; after the RRC connection is released, the access device marks that the terminal device is in a Low Power Idle (LPI) mode according to the indication information, and after receiving a paging message which is sent by core network equipment and aims at the terminal device, generates a wake-up signal (WUS) according to the mark that the terminal device is in the LPI mode, and sends the WUS to the terminal device; and after the WUR of the terminal equipment receives the WUS, the terminal equipment switches the transceiver of the terminal equipment from a dormant state to a working state so as to wake up the terminal equipment.

By the method, the terminal equipment sends the indication information that the terminal equipment can be in the LPI mode to the access equipment, so that the terminal equipment can receive the WUS through the WUR with lower power consumption than the transceiver when the terminal equipment is in the LPI mode subsequently, and the transceiver is not required to receive any information, so that the terminal equipment can save more electric quantity consumption, further the terminal equipment can reduce more power consumption, and the effect of reducing the power consumption is better compared with the existing terminal equipment.

In one possible design, the terminal device may send the indication information to the access device in three cases:

in the first case: and when the terminal equipment is accessed to the access equipment, the indication information is sent to the access equipment.

In the second case: and when the terminal equipment needs to enter the LPI mode, the terminal equipment sends the indication information to the access equipment before the RRC connection is released.

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

By the method, the terminal equipment can flexibly send the indication information to the access equipment in various modes.

In one possible design, the indication information is capability information of the terminal device including the WUR; or the indication information is information containing the content of the LPI mode used by the terminal equipment. By sending the indication information to the access device by the terminal device, the access device may recognize that the terminal device enters the LPI mode after the RRC connection is released, instead of the conventional idle mode.

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

the first method comprises the following steps: and the access equipment acquires the first identifier in the paging message and generates the WUS containing the first identifier.

The second method comprises the following steps: after the access device acquires the first identifier in the paging message, acquiring a second identifier of the terminal device corresponding to the first identifier, and generating the WUS containing the second identifier; the second identifier is an identifier allocated to the terminal device by the core network device or other network devices in the RRC connection release process of the terminal device. In the second method, the first identifier and the second identifier are both digital sequences, and the second identifier is shorter than the sequence of the first identifier, so that the WUS generated by the access device and containing the second identifier is simpler to process than the WUS directly containing the first identifier by the second method, and the WUR of the terminal device has higher response speed when receiving the WUS.

In an alternative embodiment, the WUR of the terminal device may listen to WUS every set duration when receiving the WUS, e.g., the WUR may listen for 2 milliseconds every 1280 milliseconds. Specifically, the set time duration may also be referred to as a listening period. The listening time point of the WUR every set duration may be referred to as a wake-up opportunity (WO), where the WO may be agreed by the access device and the terminal device, or may be directly specified by the access device.

By the method, the WUR of the terminal equipment can only monitor the WUS at each WO point and can not be in a monitoring state at other time, so that the electric quantity can be saved, and the power consumption of the terminal equipment is reduced.

In a possible design, a specific method for the terminal device to switch the transceiver of the terminal device from the sleep state to the operating state may be: the WUR of the terminal device directly wakes up the transceiver of the terminal device, specifically, a signal is directly sent to the transceiver 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 a working state; or after the WUR of the terminal equipment is identified by the processor of the terminal equipment to receive the WUS, the transceiver of the terminal equipment is controlled to be switched from a dormant state to a working state.

By the method, the terminal equipment can be awakened to enter a subsequent communication process with the access equipment, so that downlink data forwarded to the terminal equipment by the core network equipment through the access equipment is obtained.

In one possible design, after the WUR of the terminal device receives the WUS, the terminal device switches the WUR of the terminal device from an operating state to a sleep state. This can make the WUR no longer consume power, which can make the terminal device more power efficient.

In a possible design, the WUS may include an identifier of the access device, so that after being awakened, the terminal device may recognize that communication with the access device is required, and the terminal device may establish a new RRC connection with the access device and further communicate with the access device, thereby obtaining downlink data that the core network device forwards to the terminal device through 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 method comprises the steps that a terminal device sends indication information to a first access device, and switches a transceiver of the terminal device from a working state to a dormant state and switches a WUR of the terminal device from the dormant state to the working state after RRC connection is released; the first access equipment forwards the indication information to core network equipment; after the RRC connection of the terminal equipment is released, the core network equipment marks that the terminal equipment is in the LPI mode according to the indication information, and when downlink data needs to be sent to the terminal equipment, a wake-up message is sent to second access equipment according to the mark that the terminal equipment is in the LPI mode so as to inform the second access equipment that the terminal equipment is in the LPI mode at present and needs to be woken up; the second access equipment generates a WUS after receiving the awakening message and sends the WUS to the terminal equipment; and after the WUR of the terminal equipment receives the WUS sent by the second access equipment, the terminal equipment switches the transceiver of the terminal equipment from a dormant state to a working state. And the second access device covers the second cell after the terminal device moves from the first cell covered by the first access device to the second cell.

By the method, the terminal equipment sends the indication information that the terminal equipment can be in the LPI mode to the access equipment, so that the terminal equipment can receive the WUS through the WUR with lower power consumption than the transceiver when the terminal equipment is in the LPI mode in the follow-up process, the transceiver is not required to receive any information, the power consumption of the terminal equipment can be saved, the power consumption of the terminal equipment can be reduced, and the effect of reducing the power consumption of the terminal equipment is better compared with that of the existing terminal equipment.

In one possible design, the terminal device may send the indication information to the first access device in three cases:

in the first case: and when the terminal equipment is accessed to the first access equipment, the indication information is sent to the first access equipment.

In the second case: and when the terminal equipment needs to enter the LPI mode, the terminal equipment sends the indication information to the first access equipment before the RRC connection is released.

In the third case: and 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 forward the mode query message to the terminal device after receiving the mode query message sent by the core network device or other network devices.

By the method, the terminal device can flexibly send the indication information to the first access device in multiple ways, so that the first access device forwards the indication information to the core network device.

In one possible design, the indication information is capability information of the terminal device including the WUR; or the indication information is information containing the content of the LPI mode used by the terminal equipment. By sending the indication information to the first access device by the terminal device, after the first access device forwards the indication information to the core network device, the core network device may identify that the terminal device enters the LPI mode after the RRC connection is released, instead of the conventional 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 that the access device covering the second cell where the terminal device is currently located can wake up the terminal device through the wake-up message. Specifically, the second access device is an access device that covers the second cell where the terminal device is currently located, among all the 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 second access device; or the core network device may directly send the wake-up message to the second access device.

By the method, the core network device can accurately send the wake-up message to the second access device to inform the second access device that the terminal device is in the LPI mode at present and needs to be woken up, so that the second access device sends the WUS to the terminal device to wake up the terminal device.

In one 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 divided into the following two methods:

the first method comprises the following steps: and the second access equipment acquires the first identifier in the awakening message and generates the WUS containing the first identifier.

The second method comprises the following steps: after the second access device acquires the first identifier in the wake-up message, acquiring a second identifier of the terminal device corresponding to the first identifier, and generating the WUS including the second identifier; the second identifier is an identifier allocated to the terminal device by the core network device or other network devices in the RRC connection release process of the terminal device. In the second method, the first identifier and the second identifier are both a number sequence, and the second identifier is shorter than the sequence of the first identifier, so that, by the second method, the WUS generated by the second access device and containing the second identifier is simpler to process than the WUS directly containing the first identifier, and further, the response speed of the WUR of the terminal device when receiving the WUS is higher.

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

By the method, the terminal device can be awakened to enter a subsequent communication process with the access device, so that downlink data forwarded to the terminal device by the core network device through the second access device is obtained.

In a possible design, the WUS may include an identifier of the second access device, so that after the terminal device is awakened, the terminal device may recognize that communication with the second access device is required, and the terminal device may establish a new RRC connection with the second access device, and further communicate with the second access device, thereby obtaining downlink data that the core network device forwards to the terminal device through the second access device.

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

the method comprises the steps that terminal equipment sends indication information to access equipment, and switches a transceiver of the terminal equipment from a working state to a dormant state and switches a WUR of the terminal equipment from the dormant state to the working state after RRC connection is released; the access equipment forwards the indication information to core network equipment; after the RRC connection of the terminal equipment is released, the core network equipment marks that the terminal equipment is in the LPI mode according to the indication information, and when downlink data needs to be sent to the terminal equipment, a wake-up message is sent to the access equipment according to the mark that the terminal equipment is in the LPI mode so as to inform the access equipment that the terminal equipment is in the LPI mode at present and needs to be woken up; the access equipment generates a WUS after receiving the awakening message and sends the WUS to the terminal equipment; and after the WUR of the terminal equipment receives the WUS sent by the access equipment, the terminal equipment switches the transceiver of the terminal equipment from a dormant state to a working state.

By the method, the terminal device can flexibly send the indication information to the access device in a plurality of modes, so that the access device forwards the indication information to the core network device.

In one possible design, the indication information is capability information of the terminal device including the WUR; or the indication information is information containing the content of the LPI mode used by the terminal equipment. By sending the indication information to the access device by the terminal device, after the access device forwards the indication information to the core network device, the core network device may identify that the terminal device enters the LPI mode after the RRC connection is released, instead of the conventional 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 that the access device covering the cell where the terminal device is currently located can wake up the terminal device through the wake-up message. Specifically, when the terminal device is not moving in the cell covered by the access device all the time, the access device wakes up the terminal device 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 core network device may 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 wake-up message to the access device.

By the method, the core network device can accurately send the wake-up message to the access device to inform the access device that the terminal device is in the LPI mode at present and needs to be woken up, so that the access device sends the WUS to the terminal device to further wake up the terminal device.

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

the first method comprises the following steps: and the access equipment acquires the first identifier in the awakening message and generates the WUS containing the first identifier.

The second method comprises the following steps: after the access device acquires the first identifier in the wake-up message, acquiring a second identifier of the terminal device corresponding to the first identifier, and generating the WUS including the second identifier; the second identifier is an identifier allocated to the terminal device by the core network device or other network devices in the RRC connection release process of the terminal device. In the second method, the first identifier and the second identifier are both digital sequences, and the second identifier is shorter than the sequence of the first identifier, so that the WUS generated by the access device and containing the second identifier is simpler to process than the WUS directly containing the first identifier by the second method, and the WUR of the terminal device has higher response speed when receiving the WUS.

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

In a fourth aspect, the present application further provides a terminal device, where the terminal device has a function of implementing a behavior of the terminal device in the above method example. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions.

In one possible design, 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 to communicate with the access device; the WUR is configured to receive WUS; the processor is configured to support the terminal device to execute the corresponding functions of the terminal device in the method. The memory is coupled to the processor and retains program instructions and data necessary for the terminal device.

In a fifth aspect, the present application further provides an access device, where the access device has a function of implementing the behavior of the access device in the method example in the first aspect. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions.

In one possible design, the access device has a structure including a wireless transceiver, a processor, a memory, and a backhaul communication interface, where the wireless transceiver is configured to receive and transmit data and communicate with a terminal device; the backhaul communication interface is used for receiving and sending data and communicating with core network equipment; the processor is configured to support the access device to perform corresponding functions of the access device in the method of the first aspect. The memory is coupled to the processor and retains program instructions and data necessary for the access device.

In a sixth aspect, the present application further provides an access device, where the access device has a function of implementing the behavior of the first access device in the method example in the second aspect. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions.

In one possible design, the access device includes a wireless transceiver, a backhaul communication interface, a processor, and a memory, and the wireless transceiver is configured to receive and transmit data to communicate with a terminal device; the backhaul communication interface is used for receiving and sending data and communicating with core network equipment; the processor is configured to support the access device to perform the corresponding functions of the first access device in the method of the second aspect. The memory is coupled to the processor and retains program instructions and data necessary for the access device.

In a seventh aspect, the present application further provides an access device, where the access device has a function of implementing the behavior of the access device in the method example in the third aspect. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions.

In one possible design, the access device includes a wireless transceiver, a backhaul communication interface, a processor, and a memory, and the wireless transceiver is configured to receive and transmit data to communicate with a terminal device; the backhaul communication interface is used for receiving and sending data and communicating with core network equipment; the processor is configured to support the above access device to perform corresponding functions of the access device in the above method of the third aspect. The memory is coupled to the processor and retains program instructions and data necessary for the access device.

In an eighth aspect, the present application further provides a core network device, where the core network device has a function of implementing the core network device behavior in the method example in the third aspect. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions.

In one 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 an access device; the processor is configured to support the core network device to perform corresponding functions of the core network device in the method of the third aspect. The memory is coupled to the processor and 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 multiple access devices, multiple terminal devices, and a core network device.

In a tenth aspect, the present application also provides a computer storage medium having stored thereon computer-executable instructions for causing the computer, when invoked by the computer, to perform any of the methods described above.

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

In a twelfth aspect, the present application further provides a chip, where the chip is connected to a memory, and is configured to read and execute program instructions stored in the memory, so as to implement any one of the above methods.

In the embodiment of the application, the terminal equipment sends an indication message that the terminal equipment can be in an LPI mode to the access equipment; after the RRC connection of the terminal equipment is released, the access equipment marks that the terminal equipment is in the LPI mode according to the indication information, or forwards the indication message to core network equipment, so that the core network equipment marks that the terminal equipment is in the LPI mode according to the indication information after the RRC connection of the terminal equipment is released; then the access device sends WUS to the terminal device after receiving the paging message or the wake-up message sent by the core network device; and after the WUR of the terminal equipment receives the WUS, the terminal equipment switches the transceiver of the terminal equipment from a dormant state to a working state so as to wake up the terminal equipment. In the method, the terminal device sends the indication information that the terminal device can be in the LPI mode to the access device, so that the terminal device can receive the WUS through the WUR with lower power consumption than the transceiver when the terminal device is in the LPI mode subsequently, and the transceiver is not required to receive any information, therefore, the terminal device can save more electric quantity consumption, and further, the terminal device can reduce more power consumption, and the effect of reducing the power consumption is better compared with the existing terminal device.

Drawings

Fig. 1 is a schematic architecture diagram of a communication system provided in the present application;

fig. 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 another method for waking up a terminal device according to the present application;

fig. 5 is a structural diagram of a terminal device provided in the present application;

fig. 6 is a block diagram of an access device provided in the present application;

fig. 7 is a block diagram of another access device provided in the present application;

fig. 8 is a block diagram of still another access device provided in the present application;

fig. 9 is a structural diagram of a core network device provided in the present application.

Detailed Description

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

The embodiment of the application provides a method and a device for waking up a terminal device, which are used for solving the problem that in the prior art, when the terminal device is in an idle mode, a transceiver in the terminal device needs to periodically listen to a paging message, so that the terminal device is power-saving and the effect of reducing power consumption is not good. The method and the device are based on the same inventive concept, and because the principles of solving the problems of the method and the device are similar, the implementation of the device and the method can be mutually referred, and repeated parts are not repeated.

Hereinafter, some terms in the present application are explained to facilitate understanding by those skilled in the art.

1) A terminal device, also referred to as a User Equipment (UE), is a device that provides data connectivity to a user, such as a handheld device with wireless connectivity, a vehicle-mounted device, a wearable device, a computing device, a Mobile Station (MS) or other processing device connected to a wireless modem, and a mobile terminal that communicates with one or more core networks via an access network; for example, the terminal device may be a mobile phone, a tablet computer, a Personal Digital Assistant (PDA), a point of sale (POS), a vehicle-mounted computer, or the like.

2) An access device, also called a Base Station (BS), is a device for providing a wireless access service for a terminal device, including but not limited to: an evolved Node B (eNB), a Radio Network Controller (RNC), a Node B (NB), a Base Station Controller (BSC), a Base Transceiver Station (BTS), a home base station (e.g., home evolved Node B, or home Node B, HNB), a Base Band Unit (BBU), an Access Point (AP), a wireless access point (WiFi AP), a Worldwide Interoperability for Microwave Access (WiMAX) BS, and the like.

3) The core network device may be, but not limited to, a Mobile Management Entity (MME)/Serving Gateway (SGW), an MME, and the like, where the MME/SGW indicates that the MME and the SGW are located in a same physical entity.

4) The term "plurality" in the embodiments of the present application means two or more.

5) The terms "first," "second," and the like in the description of the present application are used for descriptive purposes only and are not intended to indicate or imply relative importance nor order to be construed.

In order to more clearly describe the technical solution of the embodiment of the present application, the following describes in detail a method and an apparatus for waking up a terminal device provided in the embodiment of the present application with reference to the accompanying drawings.

Fig. 1 shows a possible communication system to which the method for waking up a terminal device provided in the embodiment of the present application is applied, where an architecture of the communication system includes: a plurality of access devices, a plurality of terminal devices and a core network device, wherein:

any one of the plurality of terminal devices is configured to access an access device of the plurality of 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 may access the access device 1 to perform various services; the terminal device 2 can be accessed to the access device 1 or the access device 2 to perform various services; the access principle of the terminal equipment 3, the terminal equipment 4 and the terminal equipment 5 is the same as that of the terminal equipment 1 and the terminal equipment 2. In addition, each terminal device may move freely in an area covered by a network, and the terminal device does not need to update a free movement area serving the access device to a Tracking Area (TA) of the terminal device during the idle mode, where the TA includes a plurality of cells in which the terminal device may move freely, and the plurality of cells are areas covered by at least one access device. The TA of the terminal device may change, i.e. the terminal device may have different tracking areas at different time periods or locations. The terminal device needs to register or update a TA with the core network device, so that the core network device can identify the TA in which the terminal device is in the idle mode, and further, when downlink data needs to be sent to the terminal device, the terminal device can be accurately paged.

The plurality of access devices are located in the access network and used for providing wireless access service for the terminal device, so that the terminal device can access the corresponding access device to perform various services. Wherein each access device may provide wireless access services for at least one terminal device. For example, access device 1 shown in fig. 1 may provide wireless access services for terminal device 1 and terminal device 2, and access device 2 may provide wireless access services for terminal device 2, terminal device 3, and terminal device 4.

The core network device is located in the core network, and is configured to manage mobility of the plurality of terminals, and forward downlink data to the corresponding terminal device through the plurality of access devices when the downlink data needs to be sent to the plurality of terminal devices. The core network includes an apparatus MME for managing mobility of the terminal, where the MME may exist independently, and the MME may also be located in the same physical entity as a gateway apparatus SGW connecting the access network and the core network.

In 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 access device, and an Evolved Packet System (EPS) Connection Management (ECM) Connection is also established between the terminal device and a core network device; the RRC connection and the ECM connection are synchronously established and synchronously released, i.e. when the RRC connection is released when communication between the terminal device and the access device is no longer required, the ECM connection is also released.

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

Terminal devices mentioned in the following embodiments of the present application each 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 main radio frequency interface (main radio, MR), and is mainly used for performing interactive communication with the access device, acquiring downlink data sent by the core network device through the access device, receiving messages with complex structures and the like sent by other network devices, and sending data and other various messages to the access device; whereas the WUR is only used to receive some relatively simple signals.

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

step 201, a terminal device sends indication information to an access device, where the indication information is used to indicate that the terminal device is in an LPI mode after RRC connection of the terminal device is released, a transceiver of the terminal device is in a dormant state in the LPI mode, and a wakeup receiver WUR of the terminal device is in a working state.

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

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 own actual situation. For example, in the process that the terminal device continuously moves fast among a plurality of cells, the terminal device needs to wait until the terminal device does not move or moves slowly before sending the indication information to the access device.

In an optional embodiment, the indication information is capability information of the terminal device including the WUR; or the indication information is information containing the content of the LPI mode used by the terminal equipment. By sending the indication information to the access device by the terminal device, the access device may recognize that the terminal device enters the LPI mode after the RRC connection is released, instead of the conventional idle mode.

Step 202, after the RRC connection of the terminal device is released, the terminal device switches the transceiver of the terminal device from a working state to a dormant state, and switches the WUR of the terminal device from the dormant state to the working state.

Specifically, when the terminal device communicates with the access device, the RRC connection is established between the terminal device and the access device, and an ECM connection is also established between the terminal device and a core network device; the RRC connection and the ECM connection are synchronously established and synchronously released, i.e. 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 procedure actively, that the access device initiates a release procedure actively, or that the core network device initiates a release procedure of the ECM connection actively to release the RRC connection. In a specific implementation, the terminal device, the access device, and the core network device may recognize the release of the RRC connection no matter which of the three release procedures is used.

In an optional implementation manner, after the terminal device enters the LPI mode through step 202, the switching of the transceiver to the sleep state may be specifically represented as a circuit shutdown, without generating any power consumption; or may appear to enter a deep sleep state, resulting in only a weak power consumption, e.g., 0.012 milliwatts. This allows the transceiver with a relatively large power consumption in the terminal device to consume no or only a relatively small amount of power in the LPI mode, which may result in a reduced power consumption of the terminal device.

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

Specifically, the access device may recognize that the terminal device enters the LPI mode after the RRC connection is released after receiving the indication information, so that when the access device recognizes that the RRC connection of the terminal device is released, the access device determines that the terminal device is in the LPI mode at this time, and the access device executes step 203, so that when the access device subsequently receives a paging message, which is sent by the core network device and needs to be sent to the terminal device, the access device may recognize that a WUS needs to be sent to the terminal device, so that the terminal device is awakened.

And step 204, the access device receives a paging message which is sent by a core network device and aims at the terminal device.

After the above procedure, only the access device receives the indication information, and the core network device does not receive the indication information, so that the core network device does not know that the terminal device will be in the LPI mode after the RRC connection is released, but defaults that the terminal device will be in a conventional idle mode according to the existing specification, and then the core network device pages the terminal device according to the existing procedure, that is, continues to page the terminal device through a paging message.

In a specific implementation, as can be known from the description in 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, and the core network device may recognize the release of the RRC connection to the terminal device. Therefore, after the core network device recognizes the RRC connection release, it may mark that the terminal device is in a conventional 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 a tracking area where the terminal device is located, so that the access device to which the cell where the terminal device is currently located belongs can wake up the terminal device through the paging message, and thus the access device covering the cell where the terminal device is currently located in the tracking area of the terminal device can receive the paging message and execute a procedure of waking up the terminal device. In this embodiment, the cell in which the terminal device is currently located is the cell in which the terminal device is located before entering the LPI mode, that is, the terminal device does not move.

In an alternative embodiment, the downlink data may be a voice call request, a short message, information pushed by a network application, and the like.

Step 205, the access device generates a WUS according to the flag that the terminal device is in the LPI mode, and sends the WUS to the terminal device, that is, the access device sees the flag that the terminal device is in the LPI mode, and when receiving a paging message sent by a core network device for paging the terminal device, the access device triggers an operation of generating the WUS.

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

In an alternative embodiment, the specific method for the access device to generate the WUS may be divided into the following two methods:

In an optional implementation manner, among all the access devices in the tracking area of the terminal device, other access devices except the access device also generate WUSs and broadcast the WUSs to the terminal device, only in practice, because only the access device covers the cell where the terminal device is currently located, 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.

In an alternative embodiment, the WUS may be a signal that is simple to process, such as a waveform signal, so that the response speed of the WUR of the terminal device after receiving the WUS may be faster, and thus the terminal device may be woken up faster.

In an alternative embodiment, the WUR of the terminal device may listen to WUS every set duration when receiving the WUS, e.g., the WUR may listen for 2 milliseconds every 1280 milliseconds. Specifically, the set time duration may also be referred to as a listening period. The listening time point of the WUR every set duration may be referred to as a wake-up opportunity (WO), where the WO may be agreed by the access device and the terminal device, may also be directly specified by the access device, and may also adopt another listening mechanism, which is not limited in this application.

In an alternative embodiment, the WUR may actually enter the listening state earlier than the expected WO, e.g., 1 ms earlier, and end listening later than the expected listening time, e.g., 1 ms later, as each WO listens to the WUS, to avoid the phenomenon of no WUS reception due to clock drift.

Specifically, after the WUR of the terminal device receives the WUS, it can be determined that the terminal device needs to be awakened according to a first identifier of the terminal device or a second identifier of the terminal device included in the WUS, so that the terminal device switches the transceiver of the terminal device from a sleep state to a working state. 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 transceiver of the terminal device, specifically, a signal is directly sent to the transceiver 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 a working state; or after the WUR of the terminal equipment is identified by the processor of the terminal equipment to receive the WUS, the transceiver of the terminal equipment is controlled to be switched from a dormant state to a working state. By the method, the terminal equipment can be awakened.

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 operating state to a sleep state. This can make the WUR no longer consume power, which can make 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 awakened through the above steps, the terminal device may recognize that communication with the access device is required, and the terminal device may establish a new RRC connection with the access device and further communicate with the access device, thereby obtaining downlink data that the core network device forwards to the terminal device through the access device.

By adopting the method for awakening the terminal equipment, the terminal equipment sends the indication message that the terminal equipment can be in the LPI mode to the access equipment; after the RRC connection of the terminal equipment is released, the access equipment marks that the terminal equipment is in the LPI mode according to the indication information; then the access equipment sends WUS to the terminal equipment after receiving the paging message sent by the core network equipment; and after the WUR of the terminal equipment receives the WUS, the terminal equipment switches the transceiver of the terminal equipment from a dormant state to a working state so as to wake up the terminal equipment. In the method, the terminal device sends the indication information that the terminal device can be in the LPI mode to the access device, so that the terminal device can receive the WUS through the WUR with lower power consumption than the transceiver when the terminal device is in the LPI mode subsequently, and the transceiver is not required to receive any information, therefore, the terminal device can save more electric quantity consumption, and further, the terminal device can reduce more power consumption, and the effect of reducing the power consumption is better compared with the existing terminal device.

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

step 301, a terminal device sends indication information to a first access device, where the indication information is used to indicate that the terminal device is in an LPI mode after RRC connection of the terminal device is released, a transceiver of the terminal device is in a dormant state in the LPI mode, and a wakeup receiver WUR of the terminal device is in a working state.

In an optional implementation manner, the method for the terminal device to execute step 301 is completely the same as the method for the terminal device to send the indication information to the access device in step 201 in the embodiment shown in fig. 2, and specific implementation manners may refer to the description in step 201, and repeated parts are not described herein again.

Similarly, for the specific description of the indication information, reference may be made to the description of the indication information in step 201, which is not described herein again.

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

Through step 302, the core network device may recognize that the terminal device is in the LPI mode instead of the conventional idle mode after the RRC connection is released, so that the terminal device is woken up by sending a corresponding wake-up message to the terminal device in the LPI mode subsequently.

Step 303, after the RRC connection of the terminal device is released, the terminal device switches the transceiver of the terminal device from a working state to a dormant state, and switches the WUR of the terminal device from the dormant state to the working state.

The step 303 executed by the terminal device is exactly the same as the step 202 executed by the terminal device in the embodiment shown in fig. 2. Specifically, all the descriptions in step 202 above may be applied to step 303, that is, the specific description of step 303 may refer to the description in step 202 above, and repeated parts are not described herein again.

And step 304, after the RRC connection of the terminal device is released, the core network device marks that the terminal device is in the LPI mode according to the indication information.

As can be seen from the above description in 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, and the core network device can recognize the release of the RRC connection to the terminal device. And since the core network device receives the indication information through step 302, the core network device determines that the terminal device will enter the LPI mode after the RRC connection is released, and then the core network device executes step 304, so that when downlink data needs to be sent to the terminal device in the following, it can know that the terminal device is currently in the LPI mode according to the flag, and further send a wakeup message to the terminal device.

Step 305, when the core network device needs to send downlink data to the terminal device, sending a wake-up message to a second access device according to the flag that the terminal device is in the LPI mode, where the wake-up message is used to notify the second access device that the terminal device is currently in the LPI mode and needs to be woken up.

Since the terminal device may move freely in multiple cells, and access devices covering the multiple cells may be different, in an optional implementation, the second access device is an access device that covers a second cell after the terminal device moves from a first cell covered by the first access device to the second cell.

Specifically, after the core network device passes through step 304, it may be determined that the terminal device is currently in the LPI mode, and therefore the core network device needs to wake up the terminal device through the wake-up 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 that the access device covering the second cell where the terminal device is currently located can wake up the terminal device through the wake-up message. Specifically, the second access device may be an access device that covers the second cell where the terminal device is currently located, among all the access devices.

In an optional implementation manner, when performing step 305, the core network device may carry the wake-up message in a paging message, and send the paging message to the second access device; or the core network device may directly send the wake-up message to the second access device.

And step 306, the second access device generates a WUS and sends the WUS to the terminal device so as to wake up the terminal device.

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 determine, through the first identifier of the terminal device, that the terminal device currently in the LPI mode is to be woken up, so that 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 divided into the following two methods:

In an optional implementation manner, among all the access devices in the tracking area of the terminal device, other access devices except the second access device may also generate WUSs and broadcast the WUSs to the terminal device, only in practice, because only the second access device covers the second cell where the terminal device is currently located, only the second access device may 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, so that the terminal device is awakened.

Specifically, the WUS is the same as the WUS in step 206 in the embodiment shown in fig. 2, and a method for the WUR of the terminal device to receive the WUS sent by the second access device is the same as a method for the WUR of the terminal device to receive the WUS sent by the access device in step 206, and reference may be made to the description of step 206, which is not repeated herein.

Similarly, 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 related in step 206, and reference may be made to the detailed description thereof, which is not repeated herein.

In practice, the WUS may further include an identifier of the second access device, so that after the terminal device is awakened through the above steps, the terminal device may recognize that communication with the second access device is required, and the terminal device may establish a new RRC connection with the second access device, and further communicate with the second access device, so as to obtain downlink data that is forwarded to the terminal device by the core network device through the second access device.

By adopting the method for waking up the terminal device provided by the embodiment of the application, the terminal device sends the 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 core network equipment, so that the core network equipment marks that the terminal equipment is in the LPI mode according to the indication message after the RRC connection of the terminal equipment is released; then after receiving the wake-up message sent by the core network equipment, the second access equipment sends a WUS to the terminal equipment; and after the WUR of the terminal equipment receives the WUS, the terminal equipment switches the transceiver of the terminal equipment from a dormant state to a working state so as to wake up the terminal equipment. In the method, the terminal device sends the indication information that the terminal device can be in the LPI mode to the access device, so that the terminal device can receive the WUS through the WUR with lower power consumption than the transceiver when the terminal device is in the LPI mode subsequently, and the transceiver is not required to receive any information, therefore, the terminal device can save more electric quantity consumption, and further, the terminal device can reduce more power consumption, and the effect of reducing the power consumption is better compared with the existing terminal device.

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

step 401, a terminal device sends indication information to an access device, where the indication information is used to indicate that the terminal device is in an LPI mode after RRC connection of the terminal device is released, a transceiver of the terminal device is in a dormant state in the LPI mode, and a wakeup receiver WUR of the terminal device is in a working 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 dormant state, and switches the WUR of the terminal device from the dormant state to the working state.

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

Specifically, the above steps 401 to 404 may refer to the descriptions in the step 301 to the step 304 in the embodiment shown in fig. 3, and are not described again here.

Step 405, when the core network device needs to send downlink data to the terminal device, sending a wake-up message to the access device according to the flag that the terminal device is in the LPI mode, where 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.

Specifically, after the core network device passes through step 404, it may be determined that the terminal device is currently in the LPI mode, and therefore the core network device needs to wake up the terminal device through the wake-up 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 that the access device covering the cell where the terminal device is currently located can wake up the terminal device through the wake-up message. Specifically, when the terminal device is not moving in the cell covered by the access device all the time, the access device executes step 406 after receiving the wake-up message.

In an optional implementation manner, when the core network device executes step 405, the core network device may 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 wake-up 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 awakened.

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 access device may determine, through the first identifier of the terminal device, that the terminal device currently in the LPI mode is to be woken up, so that the access device may determine that the WUS needs to be sent to the terminal device.

Specifically, a method for the access device to generate the WUS is the same as the method for the second access device to generate the WUS in step 306 in the embodiment shown in fig. 3, and reference may be specifically made to the related description in step 306, and repeated points are not described herein again.

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 a method for the WUR of the terminal device to receive the WUS sent by the access device is the same as a method for the WUR of the terminal device to receive the WUS sent by the second access device in step 307, and reference may be made to the description of step 307, which is not repeated herein.

Similarly, 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 related in step 307, and reference may be made to the detailed description thereof, which is not described herein again.

By adopting the method for awakening the terminal equipment, the terminal equipment sends the indication message that the terminal equipment can be in the LPI mode to the access equipment; the access equipment forwards the indication message to core network equipment so that the core network equipment marks that the terminal equipment is in the LPI mode according to the indication message after the RRC connection of the terminal equipment is released; then the access equipment sends WUS to the terminal equipment after receiving the awakening message sent by the core network equipment; and after the WUR of the terminal equipment receives the WUS, the terminal equipment switches the transceiver of the terminal equipment from a dormant state to a working state so as to wake up the terminal equipment. In the method, the terminal device sends the indication information that the terminal device can be in the LPI mode to the access device, so that the terminal device can receive the WUS through the WUR with lower power consumption than the transceiver when the terminal device is in the LPI mode subsequently, and the transceiver is not required to receive any information, therefore, the terminal device can save more electric quantity consumption, and further, the terminal device can reduce more power consumption, and the effect of reducing the power consumption is better compared with the existing terminal device.

Based on the above embodiments, the present application further provides a terminal device, which is applied to the communication system shown in fig. 1, and is configured to implement the functions of the terminal device in the method for waking up the terminal device shown in fig. 2, fig. 3, and fig. 4. Referring to fig. 5, the terminal device 500 includes a transceiver 501, a processor 502, and a WUR503, and optionally the terminal device 500 further includes a memory 504, wherein:

the processor 502 may 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 WUR503, and the memory 504 are interconnected. Optionally, the transceiver 501, the processor 502, the WUR503, and the memory 504 are connected to each other via a bus 505; the bus 505 may include an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in FIG. 5, but this is not intended to represent only one bus or type of bus.

The memory 504 may include volatile memory (volatile memory), such as random-access memory (RAM); the memory may also include a non-volatile memory (non-volatile memory), such as a flash memory (also called flash memory), a Hard Disk Drive (HDD) or a solid-state drive (SSD); the memory 504 may also comprise a combination of memories of the kind described above.

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 a first access device, where the indication information is used to indicate that, after a radio resource control RRC connection of the terminal device 500 is released, the terminal device 500 is in a low power consumption idle LPI mode, the transceiver 501 of the terminal device is in a dormant state in the LPI mode, and the WUR503 of the terminal device is in a working state; in an optional embodiment, the indication information is capability information of the terminal device including the WUR; or the indication information is information containing the content of the LPI mode used by the terminal equipment;

the processor 502 is configured to switch the transceiver of the terminal device from an operating state to a dormant state and switch the WUR of the terminal device from the dormant state to the operating state after the RRC connection is released;

the WUR503 is used for receiving the WUS sent by the second access equipment; switching the transceiver 501 of the terminal device 500 from a sleep state to a working state according to the WUS, so that the terminal device is awakened; or after determining that the WUR503 receives the WUS, the processor 502 switches the transceiver 501 of the terminal device 500 from a sleep state to an active state, so that the terminal device is awakened; the second access device is the first access device, or the second access device covers a second cell after the terminal device moves from a first cell covered by the first access device to the second cell;

in an alternative embodiment, when the WUR503 switches the transceiver 501 from the sleep state to the working state, a signal may be specifically sent to the transceiver 501 through an interface between the WUR503 and the transceiver 501 to trigger the transceiver 501 to power up, so that the transceiver 501 is switched from the sleep state to the working state. Wherein the interface between the WUR503 and the transceiver 501 is shown as interface 507 in fig. 5.

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 return the indication information to the first access device after receiving the mode query message sent by the first access device.

In an alternative embodiment, the transceiver 501 may transmit or receive data via an antenna when transmitting and receiving data, and the WUR503 may transmit or receive data when receiving data, respectively, and may be controlled by the processor 502 to transmit or receive data; when data transmission and reception are realized through an antenna, the transceiver 501 and the WUR may share the antenna, for example, the antenna 506 shown in fig. 5, and different antennas may be used, which are not illustrated here.

In an alternative embodiment, the WUR503 may listen to the WUS every set duration when receiving the WUS, e.g., the WUR503 may listen for 2 milliseconds every 1280 milliseconds.

In an optional embodiment, the processor is further configured to switch the WUR503 of the terminal device 500 from an operating state to a sleep state after switching the transceiver 501 of the terminal device 500 from the sleep state to the operating state.

The memory 504 may be used to store programs and the like. In particular, the program may include program code comprising computer operating instructions. The processor 502 executes the application program 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. 4.

By adopting the terminal equipment provided by the embodiment of the application, the indication message that the terminal equipment can be in the LPI mode is sent to the first access equipment; and after the WUR of the terminal equipment receives the WUS sent by the second access equipment, the terminal equipment switches the transceiver of the terminal equipment from a dormant state to a working state so as to wake up the terminal equipment. Therefore, the terminal device sends the indication information that the terminal device can be in the LPI mode to the access device, so that the terminal device can receive the WUS through the WUR with lower power consumption than the transceiver when the terminal device is in the LPI mode in the follow-up process, the transceiver does not need to receive any information, the terminal device can save more electric quantity consumption, the power consumption of the terminal device can be further reduced, and the effect of reducing the power consumption of the terminal device is better compared with that of the existing terminal device.

Based on the above embodiments, an 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 function of the access device in the method for waking up a terminal device shown in fig. 2. 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, wherein:

the processor 602 may be a CPU, an NP, or a combination of a CPU and an NP. The processor 602 may further include a hardware chip. The hardware chip may be an ASIC, PLD, or a combination thereof. The 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 interconnected. Optionally, the wireless transceiver 601, the processor 602, the memory 603 and the backhaul communication interface 604 are connected to each other through a bus 605; the bus 605 may include an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in FIG. 6, but this is not intended to represent only one bus or type of bus.

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

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

the wireless transceiver 601 is configured to receive indication information sent by a terminal device, where the indication information is used to indicate that, after a radio resource control RRC connection of the terminal device is released, the terminal device is in a low power consumption idle LPI mode, the transceiver of the terminal device is in a sleep state in the LPI mode, and a wakeup receiver WUR of the terminal device is in a working state; in an optional embodiment, the indication information is capability information of the terminal device including the WUR; or the indication information is information containing the content of the LPI mode used by the terminal equipment;

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

the memory 603 is configured to store the flag that the terminal device is in the LPI mode after the processor 602 flags that the terminal device is in the LPI mode;

the backhaul communication interface 604 is configured to receive a paging message, which is sent by a core network device and is addressed to the terminal device;

the processor 602 is further configured to generate a WUS according to the flag stored in the memory 603 that the terminal device is in the LPI mode after the backhaul communication interface 604 receives a paging message, which is sent by a core network device and is addressed to the terminal device, and the paging message is received by the backhaul communication interface 604;

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

In an optional embodiment, the wireless transceiver 601 is further configured to: before receiving the indication information sent by the terminal equipment, sending a first mode query message to the terminal equipment so as to enable the terminal equipment to return the indication information; or after receiving a 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 alternative embodiment, the wireless transceiver 601 may transmit and receive data through an antenna, such as the antenna 606 shown in fig. 6; when the wireless transceiver 601 is used for transceiving data, the processor 602 may further control the wireless transceiver 601 to transceive data.

In an alternative embodiment, the backhaul communication interface 604 may be controlled by the processor 602 to transmit and receive data through the backhaul communication interface 604 when transmitting and receiving data.

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

By adopting the access device provided by the embodiment of the application, the indication information which is sent by the terminal device and can be in the LPI mode is received, and 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; then the access equipment sends WUS to the terminal equipment after receiving the paging message sent by the core network equipment; and after the WUR of the terminal equipment receives the WUS, the terminal equipment switches the transceiver of the terminal equipment from a dormant state to a working state so as to wake up the terminal equipment. Therefore, the terminal device sends the indication information that the terminal device can be in the LPI mode to the access device, so that the terminal device can receive the WUS through the WUR with lower power consumption than the transceiver when the terminal device is in the LPI mode in the follow-up process, the transceiver does not need to receive any information, the terminal device can save more electric quantity consumption, the power consumption of the terminal device can be further reduced, and the effect of reducing the power consumption of the terminal device is better compared with that of the existing terminal device.

Based on the above embodiments, an 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 function of the first access device in the method for waking up the terminal device shown in fig. 3. Referring to fig. 7, the access device 700 includes a wireless transceiver 701, a backhaul communication interface 702, and a processor 703, and 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 hardware chip may be an ASIC, PLD, or a combination thereof. The 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 interconnected. Optionally, the wireless transceiver 701, the backhaul communication interface 702, the processor 703 and the memory 704 are connected to each other through a bus 705; the bus 705 may include an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in FIG. 7, but this is not intended to represent only one bus or type of bus.

The memory 704 may include volatile memory, such as RAM; the memory 704 may also include non-volatile memory, such as flash memory, a HDD or a SSD; the memory 704 may also comprise a combination of memories of the kind 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 indication information sent by a terminal device, where the indication information is used to indicate that, after a radio resource control RRC connection of the terminal device is released, the terminal device is in a low power consumption idle LPI mode, the transceiver of the terminal device is in a sleep state in the LPI mode, and a wakeup receiver WUR of the terminal device is in a working state; in an optional embodiment, the indication information is capability information of the terminal device including the WUR; or the indication information is information containing the content of the LPI mode used by the terminal equipment;

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

In an optional embodiment, the wireless transceiver 701 is further configured to: before receiving the indication information sent by the terminal equipment, sending a first mode query message to the terminal equipment so as to enable the terminal equipment to return the indication information; or after receiving a 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 wake-up message sent by the core network device; specifically, when receiving the wake-up message sent by the core network device, the backhaul communication interface 702 is specifically configured to: receiving a paging message sent by the core network equipment, wherein the paging message comprises the awakening message; and acquiring 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 a wake-up message sent by the core network device, where the wake-up message is sent by the core network device to the access device when downlink data needs to be sent to the terminal 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 send the WUS to the terminal device after the processor 703 generates the WUS, so that the terminal device is awakened.

In an alternative embodiment, the wireless transceiver 701 may transmit and receive data via an antenna, such as the antenna 706 shown in fig. 7; when the wireless transceiver 701 is configured to transmit and receive data, the processor 703 may further control the wireless transceiver 701 to transmit and receive data.

In an optional embodiment, when the backhaul communication interface 702 receives and transmits data, the processor 703 may control the backhaul communication interface 702 to receive and transmit data.

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

By adopting the access device provided by the embodiment of the application, after receiving the indication message which is sent by the terminal device and can be in the LPI mode, the indication message is forwarded to the core network device, so that the core network device marks that the terminal device is in the LPI mode according to the indication message after the RRC connection of the terminal device is released. In the subsequent process, the core network device sends a wakeup message for the terminal device through the second access device, so that the second access device sends the WUS to the terminal device, and the WUR of the terminal device is awakened after receiving the WUS. Therefore, the terminal device sends the indication information that the terminal device can be in the LPI mode to the access device, so that the terminal device can receive the WUS through the WUR with lower power consumption than the transceiver when the terminal device is in the LPI mode in the follow-up process, the transceiver does not need to receive any information, the terminal device can save more electric quantity consumption, the power consumption of the terminal device can be further reduced, and the effect of reducing the power consumption of the terminal device is better compared with that of the existing terminal device.

Based on the above embodiments, an 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 function of the access device in the method for waking up a terminal device shown in fig. 4. Referring to fig. 8, the access device 800 includes a wireless transceiver 801, a backhaul communication interface 802, and a processor 803, and optionally, the access device 800 may further include a memory 804, where:

the processor 803 may be a CPU, an NP, or a combination of a CPU and an NP. The processor 802 may further include a hardware chip. The hardware chip may be an ASIC, PLD, or a combination thereof. The 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 interconnected. Optionally, the wireless transceiver 801, the backhaul communication interface 802, the processor 803, and the memory 804 are connected to each other by a bus 805; the bus 805 may include an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in FIG. 8, but this is not intended to represent only one bus or type of bus.

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

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 indication information sent by a terminal device, where the indication information is used to indicate that, after a radio resource control RRC connection of the terminal device is released, the terminal device is in a low power consumption idle LPI mode, the transceiver of the terminal device is in a sleep state in the LPI mode, and a wakeup receiver WUR of the terminal device is in a working state; in an optional embodiment, the indication information is capability information of the terminal device including the WUR; or the indication information is information containing the content of the LPI mode used by the terminal equipment;

the backhaul communication interface 802 is configured to forward the indication information to a core network device, so that the core network device marks, according to the indication information, that the terminal device is in the LPI mode after the RRC connection of the terminal device is released; receiving a wake-up message sent by the core network equipment; in an optional implementation manner, when receiving the wake-up message sent by the core network device, the backhaul communication interface 802 is specifically configured to: receiving a paging message sent by the core network equipment, wherein the paging message comprises the awakening message; acquiring the awakening message from the paging message;

the processor 803 is configured to generate a WUS after the backhaul communication interface 802 receives the wake-up message sent by the core network device, where the wake-up message is sent by the core network device to the access device when downlink data needs to be sent to the terminal 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 801 is further configured to transmit the WUS to the terminal device, so that the terminal device is awakened.

In an alternative embodiment, the wireless transceiver 801 is further configured to: before receiving the indication information sent by the terminal equipment, sending a first mode query message to the terminal equipment so as to enable the terminal equipment to return the indication information; or after receiving a 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 alternative embodiment, the wireless transceiver 801 may transmit and receive data via an antenna, such as the antenna 806 shown in fig. 8; the wireless transceiver 801 may also be controlled by the processor 803 to transceive data when the wireless transceiver 801 transceives data.

In an alternative embodiment, when the backhaul communication interface 802 receives and transmits data, the processor 803 may control the backhaul communication interface 802 to receive and transmit data.

Alternatively, the memory 803 may be used to store programs and the like. In particular, the program may include program code comprising computer operating instructions. The processor 803 executes the application program stored in the memory 804 to implement the above functions, thereby implementing the method for waking up the terminal device as shown in fig. 4.

By adopting the access device provided by the embodiment of the application, after receiving the indication message which is sent by the terminal device and can be in the LPI mode, the indication message is forwarded to the core network device, so that the core network device marks that the terminal device is in the LPI mode according to the indication message after the RRC connection of the terminal device is released; and then the access equipment sends the WUS to the terminal equipment after receiving the wake-up message sent by the core network equipment, so that the terminal equipment is awakened after the WUE R of the terminal equipment receives the WUS. Therefore, the terminal device sends the indication information that the terminal device can be in the LPI mode to the access device, so that the terminal device can receive the WUS through the WUR with lower power consumption than the transceiver when the terminal device is in the LPI mode in the follow-up process, the transceiver does not need to receive any information, the terminal device can save more electric quantity consumption, the power consumption of the terminal device can be further reduced, and the effect of reducing the power consumption of the terminal device is better compared with that of the existing terminal device.

Based on the above embodiments, 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 function of the core network device in the method for waking up a terminal device shown in fig. 4. 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 may be a CPU, an NP, or a combination of a CPU and an NP. The processor 902 may further include a hardware chip. The hardware chip may be an ASIC, PLD, or a combination thereof. The 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 through a bus 904; the bus 904 may include an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in FIG. 9, but this does not indicate only one bus or one type of bus.

The memory 903 may include volatile memory, such as RAM; the memory 903 may also include a non-volatile memory, such as a flash memory, HDD, or SSD; the memory 903 may also comprise a combination of memories of the above-mentioned kind.

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

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

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

the memory 903 is configured to store the flag that the terminal device is in the LPI mode after the processor 902 flags that the terminal device is in the LPI mode;

the backhaul communication interface 901 is further configured to send a wake-up message to at least one second access device according to the flag, stored in the memory, that the terminal device is in the LPI mode when downlink data needs to be sent to the terminal device, where the wake-up message is used to notify the at least one second access device that the terminal device is in the LPI mode and needs to be woken up currently. 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 second access device is all access devices in the tracking area of the terminal device.

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

In an optional implementation manner, when sending the wake-up message to the at least one second access device, the backhaul communication interface 901 is specifically configured to: and carrying the awakening message 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 transceives data, the processor 902 may control the backhaul communication interface 901 to transceive data.

Alternatively, the memory 903 may be used to store programs and the like. In particular, the program may include program code comprising computer operating instructions. The processor 902 executes the application program stored in the memory 903 to implement the above functions, thereby implementing the method for waking up the terminal device as shown in fig. 4.

By adopting the core network equipment provided by the embodiment of the application, after receiving the indication message which is forwarded by the first access equipment and is sent by the terminal equipment and can be in the LPI mode, the core network equipment marks that the terminal equipment is in the LPI mode according to the indication message after the RRC connection of the terminal equipment is released; and sending a wake-up message to at least one second access device when downlink data needs to be sent to the terminal device, so that the access device covering the cell where the terminal device is currently located sends a WUS to the terminal device, and further the WUR of the terminal device is awakened after receiving the WUS. Therefore, the terminal device sends the indication information that the terminal device can be in the LPI mode to the access device, so that the terminal device can receive the WUS through the WUR with lower power consumption than the transceiver when the terminal device is in the LPI mode in the follow-up process, the transceiver does not need to receive any information, the terminal device can save more electric quantity consumption, the power consumption of the terminal device can be further reduced, and the effect of reducing the power consumption of the terminal device is better compared with that of the existing terminal device.

In summary, the present application provides a method and an apparatus 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 an access device; after the RRC connection of the terminal equipment is released, the access equipment marks that the terminal equipment is in the LPI mode according to the indication information, or forwards the indication message to core network equipment, so that the core network equipment marks that the terminal equipment is in the LPI mode according to the indication information after the RRC connection of the terminal equipment is released; then the access device sends WUS to the terminal device after receiving the paging message or the wake-up message sent by the core network device; and after the WUR of the terminal equipment receives the WUS, the terminal equipment switches the transceiver of the terminal equipment from a dormant state to a working state so as to wake up the terminal equipment. In the method, the terminal device sends the indication information that the terminal device can be in the LPI mode to the access device, so that the terminal device can receive the WUS through the WUR with lower power consumption than the transceiver when the terminal device is in the LPI mode subsequently, and the transceiver is not required to receive any information, therefore, the terminal device can save more electric quantity consumption, and further, the terminal device can reduce more power consumption, and the effect of reducing the power consumption is better compared with the existing terminal device.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present application without departing from the scope of the embodiments of the present application. Thus, if such modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to encompass such modifications and variations.

Claims

1. A method for waking up a terminal device, comprising:

the method comprises the steps that a terminal device sends indication information to a first access device, wherein the indication information is used for indicating that the terminal device is in a low-power-consumption idle LPI mode after Radio Resource Control (RRC) connection of the terminal device is released, a transceiver of the terminal device is in a dormant state in the LPI mode, and a wakeup receiver WUR of the terminal device is in a working state; the indication information is capability information of the terminal equipment including the WUR; or the indication information is information containing the content of the LPI mode used by the terminal equipment;

after the RRC connection of the terminal equipment is released, the terminal equipment switches the transceiver of the terminal equipment from a working state to a dormant state and switches the WUR of the terminal equipment from the dormant state to the working state;

after the WUR of the terminal equipment receives a wake-up signal WUS sent by second access equipment, the terminal equipment switches the transceiver of the terminal equipment from a dormant state to a working state so as to wake up the terminal equipment;

the second access device is the first access device, or the second access device covers the second cell after the terminal device moves from the first cell covered by the first access device to the second cell.

2. The method of claim 1, wherein after the end-point device switches the transceiver of the end-point device from a sleep state to an active state, the method further comprises:

and the terminal equipment switches the WUR of the terminal equipment from a working state to a dormant state.

3. A method for waking up a terminal device, comprising:

the method comprises the steps that an access device receives indication information sent by a terminal device, wherein the indication information is used for indicating that the terminal device is in a low-power-consumption idle LPI mode after Radio Resource Control (RRC) connection of the terminal device is released, a transceiver of the terminal device is in a dormant state in the LPI mode, and a wakeup receiver WUR of the terminal device is in a working state; the indication information is capability information of the terminal equipment including the WUR; or the indication information is information containing the content of the LPI mode used by the terminal equipment;

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

after receiving a paging message which is sent by core network equipment and aims at the terminal equipment, the access equipment generates a wakeup signal WUS according to the mark that the terminal equipment is in the LPI mode, and sends the WUS to the terminal equipment so as to wake up the terminal equipment.

4. A method for waking up a terminal device, comprising:

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

the access device receives a wake-up message sent by the core network device and then generates a wake-up signal WUS, wherein the wake-up message is sent to the access device when the core network device needs to send downlink data to the terminal device, and the wake-up message is used for informing the access device that the terminal device is in the LPI mode and needs to be woken up;

and the access equipment sends the WUS to the terminal equipment so as to wake up the terminal equipment.

5. The method of claim 4, wherein the receiving, by the access device, the wake-up message sent by the core network device comprises:

the access equipment receives a paging message sent by the core network equipment, wherein the paging message comprises the awakening message;

and the access equipment acquires the awakening message in the paging message.

6. A method for waking up a terminal device, comprising:

the method comprises the steps that core network equipment receives indication information transmitted by terminal equipment forwarded by first access equipment, wherein the indication information is used for indicating that the terminal equipment is in a low-power-consumption idle LPI mode after Radio Resource Control (RRC) connection of the terminal equipment is released, a transceiver of the terminal equipment is in a dormant state in the LPI mode, and a wakeup receiver WUR of the terminal equipment is in a working state; the indication information is capability information of the terminal equipment including the WUR; or the indication information is information containing the content of the LPI mode used by the terminal equipment;

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

when downlink data needs to be sent to the terminal equipment, the core network equipment sends a wake-up message to at least one second access equipment according to the mark that the terminal equipment is in the LPI mode, wherein the wake-up message is used for informing the at least one second access equipment that the terminal equipment is in the LPI mode currently 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 second access device is all access devices in the tracking area of the terminal device.

7. The method of claim 6, wherein the core network device sending the wake-up message to the at least one second access device comprises:

and the core network equipment carries the awakening message in a paging message and sends the paging message to the at least one second access equipment.

8. A terminal device, comprising:

the terminal equipment is in a low power consumption idle LPI mode after the wireless resource control (RRC) connection of the terminal equipment is released, the transceiver of the terminal equipment is in a dormant state in the LPI mode, and a wakeup receiver WUR of the terminal equipment is in a working state; the indication information is capability information of the terminal equipment including the WUR; or the indication information is information containing the content of the LPI mode used by the terminal equipment;

a processor, configured to switch the transceiver of the terminal device from an operating state to a dormant state and switch the WUR of the terminal device from the dormant state to the operating state after the RRC connection is released;

the WUR is used for receiving a wakeup signal WUS sent by the second access equipment; switching the transceiver of the terminal equipment from a sleep state to a working state according to the WUS so as to wake up the terminal equipment; or after the WUR is determined to receive the WUS, the transceiver of the terminal equipment is switched from a sleep state to a working state by the processor, so that the terminal equipment is awakened;

9. The terminal device of claim 8, wherein the processor is further configured to switch the WUR from the active state to the dormant state after switching the transceiver from the dormant state to the active state.

10. An access device, comprising:

the terminal equipment is in a low power consumption idle LPI mode after the indication information is used for indicating that the radio resource control RRC of the terminal equipment is released, the transceiver of the terminal equipment is in a dormant state in the LPI mode, and a wakeup receiver WUR of the terminal equipment is in a working state; the indication information is capability information of the terminal equipment including the WUR; or the indication information is information containing the content of the LPI mode used by the terminal equipment;

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

a memory for storing an indication that the terminal device is in the LPI mode;

a backhaul communication interface, configured to receive a paging message, which is sent by a core network device and is addressed to the terminal device;

the processor is further used for generating a wakeup signal WUS according to the mark stored in the memory, wherein the mark indicates that the terminal equipment is in the LPI mode;

the wireless transceiver is further configured to send the WUS to the terminal device, so that the terminal device is awakened.

11. An access device, comprising:

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

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

12. The access device of claim 11, wherein the backhaul communication interface, when receiving the wake-up message sent by the core network device, is specifically configured to:

receiving a paging message sent by the core network equipment, wherein the paging message comprises the awakening message;

and acquiring the wake-up message in the paging message.

13. A core network device, comprising:

the backhaul communication interface is used for receiving indication information transmitted by the terminal equipment and forwarded by the first access equipment, wherein the indication information is used for indicating that the terminal equipment is in a low-power-consumption idle LPI mode after the Radio Resource Control (RRC) connection of the terminal equipment is released, a transceiver of the terminal equipment is in a dormant state in the LPI mode, and a WUR (wakeup receiver) of the terminal equipment is in a working state; the indication information is capability information of the terminal equipment including the WUR; or the indication information is information containing the content of the LPI mode used by the terminal equipment;

the processor marks that the terminal equipment is in the LPI mode according to the indication information after the RRC connection of the terminal equipment is released;

a memory for storing an indication that the terminal device is in the LPI mode;

the backhaul communication interface is further configured to send, when downlink data needs to be sent to the terminal device, a wake-up message to at least one second access device according to the flag, stored in the memory, that the terminal device is in the LPI mode, where 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;

14. The core network device of claim 13, wherein the backhaul communication interface, when sending the wake-up message to the at least one second access device, is specifically configured to:

and carrying the awakening message in a paging message, and sending the paging message to the at least one second access device.

15. A computer storage medium having stored thereon computer-executable instructions for causing a computer to perform the method of any one of claims 1-7 when invoked by the computer.

16. A chip, wherein the chip is connected to a memory for reading and executing program instructions stored in the memory to implement the method of any one of claims 1 to 7.