WO2022017360A1

WO2022017360A1 - Method for controlling activation of direct communication, and related device

Info

Publication number: WO2022017360A1
Application number: PCT/CN2021/107279
Authority: WO
Inventors: 王文; 谢振华; 郑倩; 柯小婉; 张艳霞
Original assignee: 维沃移动通信有限公司
Priority date: 2020-07-21
Filing date: 2021-07-20
Publication date: 2022-01-27
Also published as: CN113965994A

Abstract

Disclosed are a method for controlling activation of direct communication, and a related device. The method comprises: transmitting a paging message on a target paging occasion, wherein the paging message is used to instruct a terminal to activate direct communication, and the target paging occasion is a preset paging occasion or a paging occasion determined according to a preset parameter. In an embodiment of the present invention, a network device notifies a corresponding terminal that direct communication is to be activated. After the terminal has activated direct communication, a corresponding direct communication link can be established, and service data can be transmitted by means of the direct communication link.

Description

Direct communication startup control method and related equipment

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese Patent Application No. 202010714295.4 filed in China on Jul. 21, 2020, the entire contents of which are incorporated herein by reference.

technical field

The present application belongs to the field of communication technologies, and in particular, relates to a direct communication startup control method and related equipment.

Background technique

As we all know, limited by the battery capacity and wireless perception ability, it is impossible for a pedestrian type terminal (pedestrian user equipment, PUE) to send and receive V2X messages on the PC5 interface in the same cycle as a vehicle type terminal (vehicle user equipment, VUE). In order to reduce the power consumption of the PUE, a longer period of discontinuous reception (Discontinuous Reception, DRX) is usually configured for direct communication. This will result in poor timeliness of service data transmission of direct communication.

SUMMARY OF THE INVENTION

The purpose of the embodiments of the present application is to provide a direct communication start control method and related equipment, which can solve the problem of poor timeliness of service data transmission of direct communication.

In order to solve the above technical problems, this application is implemented as follows:

In a first aspect, a direct communication startup control method is provided, applied to a network device, including:

send a paging message on the target paging occasion;

Wherein, the paging message is used to instruct the terminal to start direct communication, and the target paging occasion is a preset paging occasion or a paging occasion determined according to a preset parameter.

In a second aspect, a direct communication startup control method is provided, applied to a network device, including:

receiving a request message, where the request message is used to request the network device to notify the terminal to start direct communication;

According to the request message, a notification message is sent to the first terminal, where the notification message is used to notify the first terminal to start the direct communication.

In a third aspect, a direct communication startup control method is provided, applied to a terminal, including:

Monitor paging messages on target paging occasions;

The paging message is used to instruct the terminal to start direct communication, and the target paging occasion is a preset paging occasion or a paging occasion determined according to a preset parameter.

In a fourth aspect, a direct communication start control method is provided, applied to the first terminal, including:

receiving a notification message sent by a network device, where the notification message is used to notify the first terminal to start the direct communication;

The direct communication is initiated according to the notification message.

A fifth aspect provides a direct communication start control method, which is applied to the second terminal, and is characterized in that, it includes:

A request message is sent, where the request message is used to request the network device to notify the terminal to start direct communication.

In a sixth aspect, a direct communication startup control method is provided, applied to an application server, including:

In a seventh aspect, a direct communication start control device is provided, comprising:

a first sending module, configured to send a paging message on a target paging occasion;

In an eighth aspect, a direct communication start control device is provided, comprising:

a second receiving module, configured to receive a request message, where the request message is used to request the network device to notify the terminal to start direct communication;

The second sending module is configured to send a notification message to the first terminal according to the request message, where the notification message is used to notify the first terminal to start the direct communication.

In a ninth aspect, a direct communication start control device is provided, comprising:

The third receiving module monitors the paging message on the target paging occasion;

A tenth aspect provides a direct communication start control device, comprising:

a fourth receiving module, configured to receive a notification message sent by a network device, where the notification message is used to notify the first terminal to start the direct communication;

and a control module for initiating the direct communication according to the notification message.

In an eleventh aspect, a direct communication start control device is provided, comprising:

The fifth sending module is configured to send a request message, where the request message is used to request the network device to notify the terminal to start direct communication.

A twelfth aspect provides a network device comprising a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being processed by the processor The steps of the method as described in the first aspect and the second aspect are implemented when the device executes.

A thirteenth aspect provides a terminal comprising a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being executed by the processor When implementing the steps of the methods described in the third aspect, the fourth aspect and the fifth aspect.

A fourteenth aspect provides a server comprising a processor, a memory, and programs or instructions stored on the memory and executable on the processor, the programs or instructions being executed by the processor When implementing the steps of the method according to the sixth aspect.

A fifteenth aspect provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the method according to the first aspect to the sixth aspect is implemented. step.

In a sixteenth aspect, an embodiment of the present application provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a network device program or instruction to implement the following: The methods of the first and second aspects.

In this embodiment of the present application, the network device notifies the corresponding terminal to start the direct communication, and after the terminal starts the direct communication, a corresponding direct communication link can be established and service data can be transmitted through the direct communication link. Therefore, the embodiments of the present application improve the timeliness of service data transmission of direct communication.

Description of drawings

1 is a structural diagram of a network system to which an embodiment of the present application can be applied;

FIG. 2 is one of the flowcharts of a direct communication startup control method provided by an embodiment of the present application;

3 is the second flow chart of a direct communication start control method provided by an embodiment of the present application;

4 is the third flowchart of a direct communication start control method provided by an embodiment of the present application;

5 is the fourth flowchart of a direct communication start control method provided by an embodiment of the present application;

6 is the fifth flowchart of a direct communication start control method provided by an embodiment of the present application;

7 is a sixth flowchart of a direct communication startup control method provided by an embodiment of the present application;

FIG. 8 is a seventh flowchart of a direct communication startup control method provided by an embodiment of the present application;

9 is one of the structural diagrams of a direct communication enabling device provided by an embodiment of the present application;

FIG. 10 is the second structural diagram of a direct communication starting device provided by an embodiment of the present application;

11 is the third structural diagram of a direct communication enabling device provided by an embodiment of the present application;

FIG. 12 is a fourth structural diagram of a device for enabling direct communication provided by an embodiment of the present application;

FIG. 13 is a fifth structural diagram of a device for enabling direct communication provided by an embodiment of the present application;

14 is a structural diagram of a communication device provided by an embodiment of the present application;

15 is a structural diagram of a communication device provided by an embodiment of the present application;

16 is a structural diagram of an application server provided by an embodiment of the present application;

FIG. 17 is a structural diagram of a terminal provided by an embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

The terms "first", "second" and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and "first", "second" distinguishes Usually it is a class, and the number of objects is not limited. For example, the first object may be one or multiple. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the associated objects are in an "or" relationship.

It is worth noting that the technologies described in the embodiments of this application are not limited to Long Term Evolution (LTE)/LTE-Advanced (LTE-Advanced, LTE-A) systems, and can also be used in other wireless communication systems, such as code Division Multiple Access (Code Division Multiple Access, CDMA), Time Division Multiple Access (Time Division Multiple Access, TDMA), Frequency Division Multiple Access (Frequency Division Multiple Access, FDMA), Orthogonal Frequency Division Multiple Access (Orthogonal Frequency Division Multiple Access, OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies. However, the following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, although these techniques are also applicable to applications other than NR system applications, such as 6th generation ( 6th Generation, 6G) communication system.

FIG. 1 shows a structural diagram of a wireless communication system to which an embodiment of the present application can be applied. The wireless communication system includes a terminal 11 and a network device 12 . The terminal 11 may also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital computer Assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device (VUE), pedestrian terminal (PUE) and other terminal-side devices, wearable devices include: bracelets, headphones, glasses, etc. It should be noted that, the embodiment of the present application does not limit the specific type of the terminal 11 . The network device 12 may be a base station or a core network, where the base station may be referred to as a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN Access Point, WiFi Node, Transmission and Reception Point (Transmitting Receiving Point, TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary, it should be noted that in the embodiment of this application, only NR is used The base station in the system is taken as an example, but the specific type of the base station is not limited.

The direct communication startup control method provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

Please refer to FIG. 2. FIG. 2 is a flowchart of a direct communication startup control method provided by an embodiment of the present application. The method is applied to a network device, as shown in FIG. 2, and includes the following steps:

Step 201, sending a paging (paging) message on a target paging occasion (PO);

In the embodiment of the present application, the above-mentioned terminal may be understood as a PUE, or other UE with short-range communication or direct communication. Before sending the paging message, the target paging occasion may be determined first. For example, in an embodiment, the preset paging occasion may be understood as a specific paging occasion agreed in the protocol, and the determination of the target paging occasion may be understood as: determining the preset paging occasion agreed in the protocol. In another embodiment, the determination of the target paging occasion may be understood as the paging occasion determined according to preset parameters, that is, the paging occasion determined according to a certain specific rule.

The network device can send the paging message on the target paging occasion, and the corresponding terminal can monitor the paging message on the target paging occasion. After monitoring the paging message, the terminal can start direct communication.

In the embodiment of the present application, a paging message is sent on a target paging occasion; wherein, the paging message is used to instruct the terminal to start direct communication, and the target paging occasion is a preset paging occasion or determined according to a preset parameter paging timing. In this way, the network device notifies the corresponding terminal to start the direct communication through the paging message, and after the terminal starts the direct communication, the corresponding direct communication link can be established and the service data can be transmitted through the direct communication link. Therefore, the embodiments of the present application improve the timeliness of service data transmission of direct communication.

It should be understood that the above-mentioned preset parameters can be specifically set according to the actual situation. For example, in an embodiment, the preset parameters can include a service type (service type), an application ID (application ID) or a temporary mobile group ID (Temporary Mobile ID). Group Identity, TMGI).

That is to say, in this embodiment, the PO can be determined according to the service type, the PO can also be determined according to the application identifier, and the PO can also be determined according to the TMGI.

Optionally, in an embodiment, the paging message carries at least one of the preset parameter and paging area information.

In this embodiment, carrying preset parameters in the paging message can facilitate the terminal to understand that direct communication is started based on specific preset parameters, for example, direct communication is started for a specified service type, or direct communication is started for a specified application identifier, Or initiate direct communication for the specified TMGI.

Carrying the paging area information in the paging message can indicate that the area corresponding to the paging area information is the effective area of the paging message, and only control the terminals in the designated paging area to start direct communication, thereby improving the paging control of network equipment. The accuracy of the device can prevent the terminal in other areas than the area corresponding to the paging area information from accidentally starting direct communication, resulting in power consumption.

Optionally, after the paging message is sent on the target paging occasion, the method further includes:

A first response message sent by the terminal is received, where the first response message is used to indicate that the terminal has started the direct communication.

In this embodiment of the present application, after the terminal receives the paging message, it can start direct communication, and after starting direct communication, it returns a first response message to the network device to confirm that the terminal has started direct communication. In an embodiment, the first response message carries a first identifier of the terminal, and the first identifier includes an application layer ID (Application layer ID), a subscription encryption identifier (Subscription Concealed Identifier, SUCI) and a globally unique identifier. At least one of the temporary terminal identifiers (Globally Unique Temporary UE Identity, GUTI).

Optionally, in an embodiment, the paging message is sent in a target area, and the target area is determined by a notification area provided by an application server.

In this embodiment, the application service may send a request to the network device to request the network device to notify the terminal to start direct communication. So that the terminal can start direct communication, so as to transmit the service data corresponding to the application server by means of direct communication. The server may also provide a notification area, so that the network device can notify the terminals in the designated area to initiate direct communication.

It should be understood that the notification area provided by the application server is the notification area where the application server needs to notify the network side to initiate direct communication, and the network device maps the area provided by the server to the area identified by the network device.

It should be noted that, after receiving the above paging message, the terminal can change the current discontinuous reception DRX mode.

Optionally, changing the current DRX mode includes any of the following:

Mode 1, when the current moment is in the dormant state of the current DRX mode, the dormant state is adjusted to an active state;

Manner 2: In the case that the current DRX mode is the first DRX mode, the current DRX mode is converted to the second DRX mode.

For the above method 1, the sleep state can be understood as the off state, and the above active state can be understood as the on state. It is assumed that the DRX mode is in the off state at this time, and the Off state is changed to On for a period of time.

For the above-mentioned mode 2, the above-mentioned first DRX mode can be understood as a DRX mode that keeps silent all the time, and the above-mentioned second DRX mode can be understood as a DRX mode with a periodic switch PC5 interface for listening and sending. In an embodiment, the second DRX mode may be a DRX mode mapped to a service type or an application identifier or a temporary group identifier.

In this embodiment of the present application, the DRX pattern may be referred to as a DRX pattern, or may be referred to as a DRX Cycle. Optionally, different DRX modes can be understood as DRX with different periods, wherein, changing the first DRX mode to the second DRX mode can be understood as changing from one DRX to another DRX, wherein before the change The DRX cycle is different from the changed DRX cycle.

It should be understood that changing the current DRX mode refers to the processing of DRX for direct communication. In this embodiment of the present application, direct communication may become PC5 interface communication or sidelink communication.

Further, with reference to FIG. 3 , an embodiment of the present application further provides another direct communication startup control method, which is applied to a network device, including:

Step 301: Receive a request message, where the request message is used to request the network device to notify the terminal to start direct communication;

Step 302: Send a notification message to the first terminal according to the request message, where the notification message is used to notify the first terminal to start the direct communication.

In this embodiment of the present application, the above-mentioned reception request message may be sent by the second terminal, or may be sent by the application server. The above-mentioned first terminal may be understood as a PUE, or other UE with the same function. The above-mentioned second terminal may be understood as any type of UE, for example, may be a PUE or a VUE, which is not further limited herein.

It should be understood that, in an embodiment, the second terminal may directly send the request message to the network device. For example, the second terminal may send the above request message to an access and mobility management function (Access and Mobility Management Function, AMF), or may send the above request message to a radio access network (Radio Access Network, RAN).

In another embodiment, the second terminal may send a request message to the application server, and the application server forwards the request message. The application server can be understood as an application function (Application Function, AF). For example, in this embodiment, the above request message may be sent to the AF through an application layer message. The AF sends a service request to a Policy Control Function (PCF) through a Network Exposure Function (NEF), where the service request is used to request the core network to trigger a specified service to initiate PC5 interface communication.

In yet another embodiment, the application server may also send the request message to the network device spontaneously.

Optionally, the above request message may carry at least one item of service type, application identifier, temporary mobility group identifier and communication type of direct communication. Wherein, when the direct communication is PC5 communication, the communication type of the direct communication may be understood as the communication type of the PC5 interface, for example, it may be a communication type such as broadcast, unicast or multicast.

In this embodiment of the present application, the network device receives the request message, and sends a notification message based on the request message to notify the first terminal to start direct communication. In this way, the first terminal starts direct communication after receiving the notification message, and can establish a corresponding direct communication link and transmit service data through the direct communication link. Therefore, the embodiments of the present application improve the timeliness of service data transmission of direct communication.

Optionally, the above notification message includes at least one of the following: a non-access stratum (Non-Access Stratum, NAS) message, a radio resource control (Radio Resource Control, RRC) message, and a paging message.

In an embodiment, for the first terminal in the connected state, the direct communication can be notified through NAS information or an RRC message; for the first terminal in the disconnected state, the direct communication can be notified through a paging message.

Optionally, when the notification message includes the paging message, according to the request message, sending the notification message to the first terminal includes:

send a paging message on the target paging occasion;

The paging message is used to instruct the first terminal to start direct communication, and the target paging occasion is a preset paging occasion or a paging occasion determined according to a preset parameter.

In this embodiment of the present application, before sending the paging message, the target paging occasion may be determined first. For example, in an embodiment, the preset paging occasion may be understood as a specific paging occasion agreed in the protocol, and the determination of the target paging occasion may be understood as: determining the preset paging occasion agreed in the protocol. In another embodiment, determining the target paging occasion may be understood as a paging occasion determined according to a preset parameter, that is, a paging occasion determined according to a certain specific rule.

The network device may send a paging message on the target paging occasion, and the corresponding first terminal may monitor the paging message on the target paging occasion. After monitoring the paging message, the first terminal can start direct communication. In order to save power, for a terminal that has started direct communication, after receiving a paging message, it may no longer monitor this type of paging message.

In one embodiment, the paging message is sent within a target area determined by at least one of the following:

the location of the second terminal, where the second terminal is the terminal sending the request message;

Notification area provided by the application server.

In this embodiment of the present application, the area where the second terminal is located may be determined based on the location of the second terminal, and the target area is determined based on the area. It is also possible to determine the information of the adjacent first terminal based on the position of the second terminal, and to determine which first terminals need to be notified to start direct communication based on the information of the adjacent first terminal and the subscription information of the second terminal or the context of the second terminal. Determine the target area.

In another embodiment, the target area may also be determined based on the notification area provided by the server. It should be understood that the notification area provided by the application server is the notification area where the application server needs to notify the network side to initiate direct communication, and the network device maps the area provided by the server to the area identified by the network device. It should be understood that when the application server provides the notification area, the notification area may be provided in the above request message, or may be provided through other messages, which is not further limited herein.

Further, the above target area may also be determined in combination with the location of the second terminal and the notification area provided by the application server. For example, the first area determined by the notification area provided by the application server and the second area determined based on the location of the second terminal may be the target area selected according to certain rules. The rule may be union or intersection, etc., which is not further limited here.

Optionally, the preset parameter includes a service type, an application identifier or a temporary mobility group identifier.

Optionally, the paging message carries at least one of the preset parameter and paging area information.

Optionally, after the notification message is sent to the first terminal according to the request message, the method further includes:

A first response message sent by the first terminal is received, where the first response message is used to indicate that the first terminal has started the direct communication.

In the embodiment of the present application, after the first terminal receives the above-mentioned paging message, the direct communication can be started, and after the direct communication is started, a first response message is returned to the network device to confirm that the first terminal has started the direct communication . In an embodiment, the first response message carries a first identifier of the first terminal, and the first identifier includes at least one of an application layer identifier, a subscription encryption identifier, and a globally unique temporary terminal identifier.

Further, in an embodiment, when the receiving request message is sent by the second terminal, after the receiving the first response message sent by the first terminal, the method further includes:

Send a second response message to the second terminal, where the second response message carries the first identifier.

In this embodiment of the present application, the network device notifies the first identification of the first terminal through the second response message, so that the second terminal can learn to establish direct communication with a specific first terminal, thereby improving the reliability of data transmission.

It should be noted that, after receiving the above-mentioned paging message, the first terminal may change the current discontinuous reception DRX mode.

Optionally, changing the current DRX mode includes any of the following:

Mode 1, when the current moment is in the dormant state of the current DRX mode, adjust the dormant state to the active state;

It should be noted that the second terminal may directly start direct communication when sending the request message.

For a better understanding of the present application, the specific implementation process of the present application will be described in detail below with reference to FIG. 4 to FIG. 6 .

Embodiment 1: After receiving a request from the second terminal, the AMF starts a PC5 interface communication instruction by sending a specific service. As shown in Figure 4, it includes the following steps:

Step 401, the terminals (UE-1, PUE-1 and PUE-2) obtain PC5 communication authorization and parameter configuration of the network device, optionally, UE-1 may be a VUE or PUE or other UE with PC5 communication capability.

Step 402, UE-1 sends a first request to the AMF, where the first request is used to request the AMF to trigger a PC5 interface communication start notification, and the request carries the service type and the PC5 interface communication type.

Step 403: Based on the subscription information of UE-1 or the context of UE-1, and the information of PUEs adjacent to UE-1, the AMF determines which PUEs to notify to start the PC5 interface communication. It should be understood that this step 603 is an optional step.

Step 404, for the PUE in the connected state, for example, PUE-1 is in the connected state. The AMF notifies the PUE-1 to start the PC5 interface communication through the NAS information, where the NAS information carries the service type.

Step 405, for the PUE in the idle state, for example, PUE-2 is in the idle state. AMF informs PUE-2 to start PC5 interface communication through paging message. Optionally, the AMF calculates the paging occasion according to the service type, or the AMF sends a paging message on a specific paging occasion, where the paging message carries the service type.

Optionally, the paging message may also carry a paging area.

Optionally, the PUE-1 in the connected state can also notify the PUE-1 to start the PC5 interface communication through the paging message;

Optionally, the AMF can determine the paging area based on the location of UE-1 and the range of the service type communicated on the PC5 interface, and the AMF can determine the paging area by determining the PUE adjacent to UE-1 from the location control function device.

Optionally, after receiving the network paging, the DRX mode is changed. Changing the DRX mode can include any of the following:

If the DRX mode is off at this time, turn Off to On for a period of time;

Convert the original DRX mode to another DRX mode, for example, convert the original DRX mode that keeps silent all the time into a DRX mode that has a periodic switch PC5 interface for listening and sending. Optionally, one service may correspond to one DRX mode, and the UE starts the corresponding DRX mode based on the service identifier.

Optionally, the PUE determines whether it is currently in the paging area based on the paging area, where the paging area is the paging area determined by the network side.

Step 406 , after receiving the notification from the AMF, PUE-1 and PUE-2 start PC5 interface communication, and the PC5 interface communication start may be sending (announcing) or listening (listening). Optionally, if PUE-1 and PUE-2 have started PC5 interface communication, they may no longer monitor paging messages of the above-mentioned service type.

Optionally, in an embodiment, PUE-1 and PUE-2 reply a response to the AMF for confirming that PC5 interface communication is started, and the reply message may carry the UE identifier. The UE identifier may be an application layer identifier of the UE, SUCI, and the like.

Optionally, the AMF sends a response message to UE-1, and the message may carry the above-mentioned UE identifier, so that UE-1 can establish PC5 interface communication with a specific PUE.

Optionally, after sending the first request, UE-1 may start the PC5 interface communication mechanism.

Embodiment 2: After receiving a request from the second terminal, the RAN sends an instruction to enable the PC5 interface communication by sending a specific service. As shown in Figure 5, it includes the following steps:

Step 501, the terminals (UE-1, PUE-1 and PUE-2) obtain PC5 communication authorization and parameter configuration of the network device, optionally, UE-1 may be a VUE or PUE or other UE with PC5 communication capability.

Step 502, UE-1 sends a first request to the RAN, where the first request is used to request the RAN to trigger a PC5 interface communication start notification, and the request carries the service type and the PC5 interface communication type.

Step 503, after the RAN receives the above request, the RAN notifies the PUE-1 and the PUE-2 to start the PC5 interface communication through the RAN paging message. Optionally, the RAN can calculate the paging occasion according to the service type, or the RAN sends paging on a specific paging occasion, and the paging message carries the service type.

Optionally, the paging message may also carry a paging area.

Optionally, the AMF can determine the paging area based on the location of the UE-1 and the range of the service type communicated on the PC5 interface, and the AMF can determine the paging area by determining the PUE adjacent to the UE-1 from the location control function device.

If the DRX mode is off at this time, turn Off to On for a period of time;

Step 504, after receiving the notification from the RAN, PUE-1 and PUE-2 start PC5 interface communication, and the start PC5 interface communication may be annoncing or listing. Optionally, if PUE-1 and PUE-2 have started PC5 interface communication, they may no longer monitor paging messages of the above-mentioned service type.

Embodiment 3, according to the request of the application function entity, the AMF enables the PC5 interface communication instruction by sending a specific service. As shown in Figure 6, it includes the following steps:

Step 601, the terminals (UE-1, PUE-1 and PUE-2) obtain PC5 communication authorization and parameter configuration of the network device, optionally, UE-1 may be a VUE or PUE or other UE with PC5 communication capability.

Step 602, UE-1 sends a second request to the application function through an application layer message, the second request is used to request the AF to trigger the specified service to initiate PC5 interface communication, and the request carries the service type and the PC5 interface communication type.

Step 603, the AF sends a service request to the PCF through the NEF, the service request is used to request the core network to trigger the specified service to start the PC5 interface communication, the request carries the service type and the PC5 start instruction, and the identity of the UE-1, the AF can be based on The location of UE-1 determines which core network functional entities are notified.

Step 604, the PCF interacts with the AF, determines which regional PUE or which PUE is notified to start the PC5 interface communication according to the position of UE-1, and notifies the AMF.

Step 605, for the PUE in the connected state, for example, PUE-1 is in the connected state. The AMF notifies the PUE-1 to start the PC5 interface communication through the NAS information, where the NAS information carries the service type.

Step 606, for the PUE in the idle state, for example, PUE-2 is in the idle state. AMF informs PUE-2 to start PC5 interface communication through paging message. Optionally, the AMF calculates the paging occasion according to the service type, or the AMF sends paging on a specific paging occasion, and the paging message carries the service type.

Optionally, the paging message may also carry a paging area.

If the DRX mode is off at this time, turn Off to On for a period of time;

Step 607 , after receiving the notification from the AMF, PUE-1 and PUE-2 start PC5 interface communication, and the start PC5 interface communication may be sending (annoncing) or listening (listing). Optionally, if PUE-1 and PUE-2 have started PC5 interface communication, they may no longer monitor paging messages of the above-mentioned service type.

Further, referring to FIG. 7 , the embodiment of the present application also provides another direct communication start control method, including:

Step 701, monitor the paging message on the target paging occasion;

Optionally, the method further includes:

After listening to the paging message, direct communication is initiated.

Optionally, the method further includes:

After monitoring the paging message, the current DRX mode is changed.

Optionally, the changing of the current DRX mode includes any of the following:

When the current moment is in the dormant state of the current DRX mode, adjust the dormant state to the active state;

In the case that the current DRX mode is the first DRX mode, the current DRX mode is converted to the second DRX mode.

Optionally, the second DRX mode is a DRX mode mapped to a service type or an application identifier or a temporary group identifier.

Optionally, after monitoring the paging message on the target paging occasion, the method further includes:

In the case where the direct communication is initiated based on the paging message, a first response message is sent to the network device, where the first response message is used to indicate that the terminal has initiated the direct communication.

Optionally, the first response message carries a first identifier of the terminal, and the first identifier includes at least one of an application layer identifier and a subscription encryption identifier.

It should be noted that this embodiment is an implementation of the terminal corresponding to the embodiment shown in FIG. 2 , and the specific implementation can refer to the relevant description of the embodiment shown in FIG. 2 to achieve the same beneficial effect. In order to avoid repetition description, which is not repeated here.

Further, referring to FIG. 8 , the embodiment of the present application further provides another direct communication start control method, which is applied to the first terminal, and the method includes:

Step 801: Receive a notification message sent by a network device, where the notification message is used to notify the first terminal to start the direct communication;

Step 802: Start the direct communication according to the notification message.

Optionally, the notification message includes any one of the following: a non-access stratum NAS message, a radio resource control RRC message, and a paging message.

Optionally, when the notification message includes the paging message, the receiving notification message sent by the network device includes:

listening for the paging message on the target paging occasion;

Optionally, the paging message carries at least one of the preset parameter, paging area information and a globally unique temporary terminal identifier.

Optionally, after the direct communication is started according to the notification message, the method further includes:

A first response message is sent, where the first response message is used to indicate that the first terminal has initiated the direct communication.

Optionally, the first response message carries a first identifier of the first terminal, and the first identifier includes at least one of an application layer identifier and a subscription encryption identifier.

Optionally, the method further includes:

After receiving the notification message, the current discontinuous reception DRX mode is changed.

Optionally, the changing of the current DRX mode includes any of the following:

It should be noted that this embodiment is an implementation of the first terminal corresponding to the embodiment shown in FIG. 3 , and the specific implementation can refer to the relevant description of the embodiment shown in FIG. 3 to achieve the same beneficial effects. In order to To avoid repeating the description, it will not be repeated here.

Further, the embodiment of the present application also provides another direct communication start control method, which is applied to the second terminal, and the method includes:

Optionally, the sending request message includes any of the following:

sending the request message to the network device;

The request message is sent to the application server.

Optionally, after the sending the request message, the method further includes:

A second response message sent by the network device is received, where the second response message carries a first identifier of the first terminal, and the first identifier includes at least one of an application layer identifier, a subscription encryption identifier and a globally unique temporary terminal identifier.

Optionally, after the sending the request message, the method further includes:

The direct communication is initiated.

It should be noted that, this embodiment is an implementation of the second terminal corresponding to the embodiment shown in FIG. 3 , and the specific implementation can refer to the relevant description of the embodiment shown in FIG. 3 to achieve the same beneficial effects. In order to To avoid repeating the description, it will not be repeated here.

Further, the embodiment of the present application also provides another direct communication startup control method, the method is applied to an application server, and the method includes:

Optionally, the method further includes:

A notification area is provided to the network device, the notification area is used by the network device to determine a target area for sending a notification message, the notification message is used to notify the terminal to initiate direct communication.

It should be noted that this embodiment is an implementation of the application server corresponding to the embodiment shown in FIG. 3 . For the specific implementation, please refer to the relevant description of the embodiment shown in FIG. 3 to achieve the same beneficial effects. In order to avoid The description is repeated and will not be repeated here.

It should be noted that, in the direct communication activation control method provided by the embodiments of the present application, the execution subject may be a direct communication activation control device, or a control module in the direct communication activation control device for executing the direct communication activation control method. In the embodiments of the present application, the direct communication initiation control apparatus provided by the embodiments of the present application is described by taking the direct communication initiation control apparatus executing the direct communication initiation control method as an example.

Please refer to FIG. 9. FIG. 9 is a structural diagram of a direct communication activation control device provided by an embodiment of the present application. As shown in FIG. 9, the direct communication activation control device 900 includes:

a first sending module 901, configured to send a paging message on a target paging occasion;

Optionally, the direct communication start control also includes:

a first receiving module, configured to receive a first response message sent by the terminal after sending a paging message on the target paging occasion, where the first response message is used to indicate that the terminal has started the direct communication .

Optionally, the first response message carries a first identifier of the terminal, and the first identifier includes at least one of an application layer identifier, a subscription encryption identifier, and a globally unique temporary terminal identifier.

Optionally, the paging message is sent in a target area, and the target area is determined by a notification area provided by the application server.

The network device provided in this embodiment of the present application can implement each process in the method embodiment shown in FIG. 2 , which is not repeated here to avoid repetition.

Please refer to FIG. 10. FIG. 10 is a structural diagram of a direct communication activation control apparatus provided by an embodiment of the present application. As shown in FIG. 10, the direct communication activation control apparatus 1000 includes:

A second receiving module 1001, configured to receive a request message, where the request message is used to request the network device to notify the terminal to start direct communication;

The second sending module 1002 is configured to send a notification message to the first terminal according to the request message, where the notification message is used to notify the first terminal to start the direct communication.

Optionally, the notification message includes at least one of the following: a non-access stratum NAS message, a radio resource control RRC message, and a paging message.

Optionally, when the notification message includes the paging message, the second sending module 1002 is specifically configured to: send the paging message on the target paging occasion;

Optionally, the paging message is sent in a target area, and the target area is determined by at least one of the following:

Notification area provided by the application server.

Optionally, the second receiving module 1001 is specifically configured to execute any of the following:

receiving the request message sent by the second terminal;

The request message sent by the application server is received.

Optionally, the second receiving module 1001 is further configured to: receive a first response message sent by the first terminal, where the first response message is used to indicate that the first terminal has started the direct communication.

Optionally, the first response message carries a first identifier of the first terminal, where the first identifier includes at least one of an application layer identifier, a subscription encryption identifier, and a globally unique temporary terminal identifier.

Optionally, when the receiving request message is sent by the second terminal, the second sending module 1002 is further configured to: send a second response message to the second terminal, where the second response message carries the first identifier.

The terminal provided in this embodiment of the present application can implement each process in the method embodiment shown in FIG. 3 , which is not repeated here to avoid repetition.

Please refer to FIG. 11 . FIG. 11 is a structural diagram of a direct communication activation control apparatus provided by an embodiment of the present application. As shown in FIG. 11 , the direct communication activation control apparatus 1100 includes:

The third receiving module 1101 monitors the paging message on the target paging occasion;

Optionally, the direct communication start control device further includes:

The processing module is configured to start direct communication after monitoring the paging message.

Optionally, the processing module is further configured to: after monitoring the paging message, change the current discontinuous reception DRX mode.

Optionally, the changing of the current DRX mode includes any of the following:

Optionally, the direct communication start control apparatus further includes: a third sending module, configured to send a first response message to the network device when the direct communication is started based on the paging message, the first response message Used to indicate that the terminal has initiated the direct communication.

The terminal provided in this embodiment of the present application can implement each process in the method embodiment of FIG. 7 , which is not repeated here to avoid repetition.

Please refer to FIG. 12 . FIG. 12 is a structural diagram of a direct communication activation control apparatus provided by an embodiment of the present application. As shown in FIG. 12 , the direct communication activation control apparatus 1200 includes:

a fourth receiving module 1201, receiving a notification message sent by a network device, where the notification message is used to notify a terminal to start the direct communication;

The control module 1202 is configured to start the direct communication according to the notification message.

Optionally, when the notification message includes the paging message, the fourth receiving module 1201 is specifically configured to: monitor the paging message on a target paging occasion;

Optionally, the direct communication starting control apparatus further includes: a fourth sending module, configured to send a first response message, where the first response message is used to indicate that the first terminal has started the direct communication.

Optionally, the control module 1202 is further configured to: after receiving the notification message, change the current discontinuous reception DRX mode.

Optionally, the changing of the current DRX mode includes any of the following:

The terminal provided in the embodiment of the present application can implement each process in the method embodiment of FIG. 8 , which is not repeated here to avoid repetition.

Please refer to FIG. 13 . FIG. 13 is a structural diagram of a direct communication activation control apparatus provided by an embodiment of the present application. As shown in FIG. 13 , the direct communication activation control apparatus 1300 includes:

The fifth sending module 1301 is configured to send a request message, where the request message is used to request the network device to notify the terminal to start direct communication.

Optionally, the fifth sending module 1301 is specifically configured to execute any of the following:

sending the request message to the network device;

The request message is sent to the application server.

Optionally, the direct communication start control apparatus 1300 further includes:

a fifth receiving module, configured to receive a second response message sent by the network device, where the second response message carries the first identifier of the first terminal, and the first identifier includes an application layer identifier, a contract encryption identifier and a globally unique temporary identifier The terminal identifies at least one of them.

Optionally, after the sending of the request message, the direct communication start control apparatus 1300 further includes:

an activation module for initiating the direct communication.

The terminal provided in the embodiment of the present application can implement each process in the method embodiment on the second terminal side, which is not repeated here to avoid repetition.

Optionally, the fifth sending module 1301 is further configured to provide a notification area to the network device, where the notification area is used by the network device to determine a target area for sending a notification message, and the notification message is used to notify the terminal to start direct communication.

The terminal provided in the embodiment of the present application can implement each process in the method embodiment on the application server side, and to avoid repetition, details are not repeated here.

The direct communication activation control device in the embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in a terminal. The device may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include, but is not limited to, the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (NAS), a personal computer (personal computer, PC), a television ( television, TV), teller machine, or self-service machine, etc., which are not specifically limited in the embodiments of the present application.

The direct communication startup control device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.

The direct communication activation control device provided in the embodiment of the present application can implement the various processes implemented by the method embodiments of FIG. 2 to FIG. 8 , and achieve the same technical effect. In order to avoid repetition, details are not repeated here.

Optionally, as shown in FIG. 14, an embodiment of the present application further provides a communication device 1400, including a processor 1401, a memory 1402, a program or instruction stored in the memory 1402 and executable on the processor 1401, For example, when the communication device 1400 is a terminal, when the program or instruction is executed by the processor 1401, each process of the above-mentioned embodiment of the direct communication startup control method is implemented, and the same technical effect can be achieved. When the communication device 1400 is a network device, when the program or instruction is executed by the processor 1401, each process of the foregoing direct communication start control method embodiment can be achieved, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.

Specifically, the embodiment of the present application further provides a network device. As shown in FIG. 15 , the network device 1500 includes: an antenna 1501 , a radio frequency device 1502 , and a baseband device 1503 . The antenna 1501 is connected to the radio frequency device 1502 . In the uplink direction, the radio frequency device 1502 receives information through the antenna 1501, and sends the received information to the baseband device 1503 for processing. In the downlink direction, the baseband device 1503 processes the information to be sent and sends it to the radio frequency device 1502 , and the radio frequency device 1502 processes the received information and sends it out through the antenna 1501 .

The above-mentioned frequency band processing apparatus may be located in the baseband apparatus 1503 , and the method performed by the network device in the above embodiments may be implemented in the baseband apparatus 1503 . The baseband apparatus 1503 includes a processor 1504 and a memory 1505 .

The baseband device 1503 may include, for example, at least one baseband board on which multiple chips are arranged, as shown in FIG. 15 , one of the chips is, for example, the processor 1504 , which is connected to the memory 1505 to call the program in the memory 1505 to execute The network devices shown in the above method embodiments operate.

The baseband device 1503 may further include a network interface 1506 for exchanging information with the radio frequency device 1502, and the interface is, for example, a Common Public Radio Interface (CPRI for short).

Specifically, the application server in this embodiment of the present application further includes: instructions or programs stored in the memory 1505 and executable on the processor 1504, and the processor 1504 invokes the instructions or programs in the memory 1505 to execute the instructions or programs shown in FIG. 9 and FIG. 10 . The method executed by each module achieves the same technical effect. To avoid repetition, it is not repeated here.

Specifically, the embodiment of the present application further provides an application server. As shown in FIG. 16 , the application server 1600 includes: an antenna 1601 , a radio frequency device 1602 , and a baseband device 1603 . The antenna 1601 is connected to the radio frequency device 1602. In the uplink direction, the radio frequency device 1602 receives information through the antenna 1601, and sends the received information to the baseband device 1603 for processing. In the downlink direction, the baseband device 1603 processes the information to be sent and sends it to the radio frequency device 1602 , and the radio frequency device 1602 processes the received information and sends it out through the antenna 1601 .

The above-mentioned frequency band processing apparatus may be located in the baseband apparatus 1603 , and the method executed by the application server in the above embodiments may be implemented in the baseband apparatus 1603 , where the baseband apparatus 1603 includes a processor 1604 and a memory 1605 .

The baseband device 1603 may include, for example, at least one baseband board on which multiple chips are arranged, as shown in FIG. 16 , one of the chips is, for example, the processor 1604, which is connected to the memory 1605 to call the program in the memory 1605 to execute The application server operations shown in the above method embodiments.

The baseband device 1603 may further include a network interface 1606 for exchanging information with the radio frequency device 1602, and the interface is, for example, a common public radio interface (CPRI for short).

Specifically, the application server in this embodiment of the present application further includes: instructions or programs stored in the memory 1605 and executable on the processor 1604, and the processor 1604 invokes the instructions or programs in the memory 1605 to execute the instructions or programs executed by the modules on the application server side. method, and achieve the same technical effect, in order to avoid repetition, it is not repeated here.

FIG. 17 is a schematic diagram of a hardware structure of a terminal implementing various embodiments of the present application.

The terminal 1700 includes but is not limited to: a radio frequency unit 1701, a network module 1702, an audio output unit 1703, an input unit 1704, a sensor 1705, a display unit 1706, a user input unit 1707, an interface unit 1708, a memory 1709, a processor 1710 and other components.

Those skilled in the art can understand that the terminal 1700 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 1710 through a power management system, so as to manage charging, discharging, and power consumption through the power management system management and other functions. The terminal structure shown in FIG. 17 does not constitute a limitation on the terminal, and the terminal may include more or less components than shown, or combine some components, or arrange different components, which will not be repeated here.

It should be understood that, in this embodiment of the present application, the input unit 1704 may include a graphics processor (Graphics Processing Unit, GPU) 17041 and a microphone 17042. Such as camera) to obtain still pictures or video image data for processing. The display unit 1706 may include a display panel 17061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1707 includes a touch panel 17071 and other input devices 17072 . The touch panel 17071 is also called a touch screen. The touch panel 17071 may include two parts, a touch detection device and a touch controller. Other input devices 17072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.

In the embodiment of the present application, the radio frequency unit 1701 receives the downlink data from the network device, and then processes it to the processor 1710; in addition, sends the uplink data to the network device. Generally, the radio frequency unit 1701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

Memory 1709 may be used to store software programs or instructions as well as various data. The memory 1709 may mainly include a storage program or instruction area and a storage data area, wherein the stored program or instruction area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.) and the like. In addition, the memory 1709 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. For example at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

The processor 1710 may include one or more processing units; optionally, the processor 1710 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs or instructions, etc. Modem processors mainly deal with wireless communications, such as baseband processors. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 1710.

Wherein, the radio frequency unit 1701 is used to monitor the paging message on the target paging occasion;

Alternatively, the radio frequency unit 1701 is configured to receive a notification message sent by a network device, where the notification message is used to notify the terminal to start the direct communication;

The processor 1710 is configured to start the direct communication according to the notification message.

Alternatively, the radio frequency unit 1701 is configured to send a request message, where the request message is used to request the network device to notify the first terminal to start direct communication.

It should be understood that, in this embodiment, the above-mentioned processor 1710 and the radio frequency unit 1701 can implement each process performed by the terminal in the method embodiment on the terminal side, and in order to avoid repetition, details are not repeated here.

The embodiments of the present application further provide a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, each process of the above-mentioned embodiment of the direct communication startup control method is implemented, and can To achieve the same technical effect, in order to avoid repetition, details are not repeated here.

Wherein, the processor is the processor in the electronic device described in the foregoing embodiments. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a network device program or instruction to implement the above-mentioned direct communication startup control Each process of the method embodiment can achieve the same technical effect, and in order to avoid repetition, it will not be repeated here.

It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip, or the like.

Embodiments of the present application further provide a computer program product, where the computer program product is stored in a readable storage medium, and the computer program product is executed by at least one processor to implement each process of the foregoing direct communication startup control method embodiments , and can achieve the same technical effect, in order to avoid repetition, it is not repeated here.

It will be appreciated that the embodiments described in this disclosure may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, modules, units, sub-modules, sub-units, etc. can be implemented in one or more Application Specific Integrated Circuits (ASIC), Digital Signal Processing (DSP), digital signal processing equipment ( DSP Device, DSPD), Programmable Logic Device (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processor, controller, microcontroller, microprocessor, for in other electronic units or combinations thereof that perform the functions described herein.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in the reverse order depending on the functions involved. To perform functions, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to some examples may be combined in other examples.

From the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general hardware platform, and of course hardware can also be used, but in many cases the former is better implementation. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence or in a part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a base station, etc.) execute the methods described in the various embodiments of this application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the inspiration of this application, without departing from the scope of protection of the purpose of this application and the claims, many forms can be made, which all fall within the protection of this application.

Claims

A direct communication startup control method, applied to a network device, includes:

send a paging message on the target paging occasion;

Wherein, the paging message is used to instruct the terminal to start direct communication, and the target paging occasion is a preset paging occasion or a paging occasion determined according to a preset parameter.
The method according to claim 1, wherein the preset parameter includes a service type, an application identifier or a temporary mobility group identifier.
The method according to claim 1, wherein the paging message carries at least one of the preset parameter and paging area information.
The method of claim 1, wherein after the sending a paging message on the target paging occasion, the method further comprises:

A first response message sent by the terminal is received, where the first response message is used to indicate that the terminal has started the direct communication.
The method according to claim 4, wherein the first response message carries a first identifier of the terminal, and the first identifier includes at least one of an application layer identifier, a subscription encryption identifier and a globally unique temporary terminal identifier .
The method of claim 1, wherein the paging message is sent within a target area determined by a notification area provided by an application server.
A direct communication startup control method, applied to a network device, includes:

receiving a request message, where the request message is used to request the network device to notify the terminal to start direct communication;

According to the request message, a notification message is sent to the first terminal, where the notification message is used to notify the first terminal to start the direct communication.
The method of claim 7, wherein the notification message comprises at least one of the following: a non-access stratum NAS message, a radio resource control RRC message, and a paging message.
The method according to claim 8, wherein when the notification message includes the paging message, sending the notification message to the first terminal according to the request message comprises:

send a paging message on the target paging occasion;

Wherein, the paging message is used to instruct the first terminal to start direct communication, and the target paging occasion is a preset paging occasion or a paging occasion determined according to a preset parameter.
The method of claim 7, wherein the notification message is sent within a target area determined by at least one of the following:

the location of the second terminal, where the second terminal is the terminal sending the request message;

Notification area provided by the application server.
The method according to claim 9, wherein the preset parameters include a service type, an application identifier or a temporary mobility group identifier.
The method of claim 9, wherein the paging message carries at least one of the preset parameter and paging area information.
The method of claim 7, wherein the receiving request message comprises any of the following:

receiving the request message sent by the second terminal;

The request message sent by the application server is received.
The method according to claim 7, wherein after the notification message is sent to the first terminal according to the request message, the method further comprises:

A first response message sent by the first terminal is received, where the first response message is used to indicate that the first terminal has started the direct communication.
The method according to claim 14, wherein the first response message carries a first identifier of the first terminal, and the first identifier comprises an application layer identifier, a subscription encryption identifier, and a globally unique temporary terminal identifier at least one.
The method according to claim 15, wherein, when the receiving request message is sent by the second terminal, after the receiving the first response message sent by the first terminal, the method further comprises:

Send a second response message to the second terminal, where the second response message carries the first identifier.
A direct communication startup control method, applied to a terminal, includes:

Monitor paging messages on target paging occasions;

The paging message is used to instruct the terminal to start direct communication, and the target paging occasion is a preset paging occasion or a paging occasion determined according to a preset parameter.
The method according to claim 17, wherein the preset parameter comprises a service type, an application identifier or a temporary mobility group identifier.
The method of claim 17, wherein the paging message carries at least one of the preset parameter and paging area information.
The method of claim 17, wherein the method further comprises:

After listening to the paging message, direct communication is initiated.
The method of claim 17, wherein the method further comprises:

After monitoring the paging message, the current DRX mode is changed.
The method of claim 21, wherein the changing the current DRX mode comprises any of the following:

When the current moment is in the dormant state of the current DRX mode, adjust the dormant state to the active state;

In the case that the current DRX mode is the first DRX mode, the current DRX mode is converted to the second DRX mode.
The method according to claim 22, wherein the second DRX mode is a DRX mode mapped to a service type or an application identity or a temporary group identity.
The method of claim 17, wherein after listening to the paging message on the target paging occasion, the method further comprises:

In the case where the direct communication is initiated based on the paging message, a first response message is sent to the network device, where the first response message is used to indicate that the terminal has initiated the direct communication.
The method according to claim 24, wherein the first response message carries a first identifier of the terminal, and the first identifier includes at least one of an application layer identifier, a subscription encryption identifier and a globally unique temporary terminal identifier .
A direct communication startup control method, applied to a first terminal, includes:

receiving a notification message sent by a network device, where the notification message is used to notify the first terminal to start the direct communication;

The direct communication is initiated according to the notification message.
The method of claim 26, wherein the notification message comprises any one of the following: a non-access stratum NAS message, a radio resource control RRC message, and a paging message.
The method according to claim 27, wherein when the notification message includes the paging message, the receiving the notification message sent by the network device comprises:

listening for the paging message on the target paging occasion;

The paging message is used to instruct the terminal to start direct communication, and the target paging occasion is a preset paging occasion or a paging occasion determined according to a preset parameter.
The method according to claim 28, wherein the preset parameter comprises a service type, an application identifier or a temporary mobility group identifier.
The method of claim 28, wherein the paging message carries at least one of the preset parameter and paging area information.
The method of claim 26, wherein after the direct communication is initiated according to the notification message, the method further comprises:

A first response message is sent, where the first response message is used to indicate that the first terminal has initiated the direct communication.
The method according to claim 31, wherein the first response message carries a first identifier of the first terminal, and the first identifier includes an application layer identifier, a subscription encryption identifier and a globally unique temporary terminal identifier at least one.
The method of claim 32, wherein the method further comprises:

After receiving the notification message, the current discontinuous reception DRX mode is changed.
The method of claim 33, wherein the changing the current DRX mode comprises any of the following:

When the current moment is in the dormant state of the current DRX mode, adjust the dormant state to the active state;

In the case that the current DRX mode is the first DRX mode, the current DRX mode is converted to the second DRX mode.
The method according to claim 34, wherein the second DRX mode is a DRX mode mapped to a service type or an application identity or a temporary group identity.
A direct communication start control method, applied to a second terminal, comprising:

A request message is sent, where the request message is used to request the network device to notify the first terminal to start direct communication.
The method of claim 36, wherein the sending request message comprises any of the following:

sending the request message to the network device;

The request message is sent to the application server.
The method of claim 36, wherein after the sending the request message, the method further comprises:

A second response message sent by the network device is received, where the second response message carries a first identifier of the first terminal, and the first identifier includes at least one of an application layer identifier, a subscription encryption identifier, and a globally unique temporary terminal identifier.
The method according to claim 36, wherein after the sending the request message, the method further comprises:

The direct communication is initiated.
A direct communication startup control method, applied to an application server, includes:

A request message is sent, where the request message is used to request the network device to notify the terminal to start direct communication.
The method of claim 40, wherein the method further comprises:

A notification area is provided to the network device, the notification area is used by the network device to determine a target area for sending a notification message, the notification message is used to notify the terminal to initiate direct communication.
A direct communication start control device, comprising:

a first sending module, configured to send a paging message on a target paging occasion;

Wherein, the paging message is used to instruct the terminal to start direct communication, and the target paging occasion is a preset paging occasion or a paging occasion determined according to a preset parameter.
The apparatus according to claim 42, wherein the preset parameter comprises a service type, an application identifier or a temporary mobility group identifier.
A direct communication start control device, comprising:

a second receiving module, configured to receive a request message, where the request message is used to request the network device to notify the terminal to start direct communication;

The second sending module is configured to send a notification message to the first terminal according to the request message, where the notification message is used to notify the first terminal to start the direct communication.
The apparatus of claim 44, wherein the notification message includes at least one of: a non-access stratum NAS message, a radio resource control RRC message, and a paging message.
A direct communication start control device, comprising:

The third receiving module monitors the paging message on the target paging occasion;

Wherein, the paging message is used to instruct the terminal to start direct communication, and the target paging occasion is a preset paging occasion or a paging occasion determined according to a preset parameter.
The apparatus according to claim 46, wherein the preset parameter comprises a service type, an application identifier or a temporary mobility group identifier.
A direct communication start control device, comprising:

a fourth receiving module, configured to receive a notification message sent by the network device, where the notification message is used to notify the terminal to start the direct communication;

and a control module for initiating the direct communication according to the notification message.
The apparatus of claim 48, wherein the notification message comprises any one of the following: a non-access stratum NAS message, a radio resource control RRC message, and a paging message.
A direct communication start control device, comprising:

The fifth sending module is configured to send a request message, where the request message is used to request the network device to notify the terminal to start direct communication.
A communication device, comprising: a memory, a processor, and a program or instruction stored on the memory and executable on the processor, the program or instruction being executed by the processor to implement claims 1 to Steps in the direct communication activation control method described in any one of 41.
A readable storage medium on which a program or an instruction is stored, the program or instruction implementing the steps of the direct communication startup control method according to any one of claims 1 to 41 when the program or instruction is executed by a processor .
A chip, the chip includes a processor and a communication interface, the communication interface is coupled with the processor, and the processor is used for running a network device program or instruction to implement any one of claims 1 to 41. The direct communication starts the control method.
A computer program product, characterized in that the program product is executed by at least one processor to implement the direct communication activation control method according to any one of claims 1-41.
A communication device configured to perform the direct communication initiation control method of any one of claims 1-41.