WO2024059981A1

WO2024059981A1 - Paging method, apparatus, device, and storage medium

Info

Publication number: WO2024059981A1
Application number: PCT/CN2022/119726
Authority: WO
Inventors: 毛玉欣
Original assignee: 北京小米移动软件有限公司
Priority date: 2022-09-19
Filing date: 2022-09-19
Publication date: 2024-03-28
Also published as: CN118057976A

Abstract

The present disclosure relates to the technical field of communications, and provided thereby are a paging method/apparatus/device/storage medium. An AMF device will receive out-of-coverage indication information. The out-of-coverage indication information is used for indicating a time period without signal coverage before a terminal device obtains the next satellite access network signal coverage. Then, mobility management is performed for the terminal device according to the out-of-coverage indication information. It can be seen that, in the paging method provided by the present disclosure, the situation in which "the AMF device sends a paging request message to the terminal device in a time period without signal coverage, but the terminal device is unable to receive the paging request message because the terminal device is in a state without signal coverage, thus causing the paging request message sent by the network device to fail and sending of an unnecessary message" is prevented from occurring, signaling of the network side and the overhead of a system are reduced, and energy consumption is reduced.

Description

A paging method/device/equipment and storage medium

Technical field

The present disclosure relates to the field of communication technology, and in particular, to a paging method/device/equipment and a storage medium.

Background technique

In the communication system, when the terminal device accesses the network through the satellite (such as accessing the 5GC network), the terminal device may be affected by some reasons (such as satellite type (non-ground synchronization type), number of satellites, satellite beam limitations, etc.) The area provides discontinuous coverage (that is, during part of the time period, the satellite provides signal coverage to the area where the terminal device is located, and during other part of the time, the satellite cannot provide signal coverage to the area where the terminal device is located). Among them, because when there is no signal coverage, the terminal equipment cannot communicate through the satellite access network. However, at this time, the terminal equipment may still continue to perform some services (such as performing cell search and monitoring paging request messages, etc.), which will lead to Unnecessary energy consumption. Based on this, power-saving mechanisms such as eDRX (extended Discontinuous Reception, extended discontinuous reception) are introduced to avoid the above situation. Among them, under the eDRX mechanism, the terminal equipment will carry out services based on the eDRX parameters. The eDRX parameters include the eDRX cycle and PTW (Paging Time Window, paging time window). After the terminal equipment enters the power saving state, it can only operate within the PTW of each eDRX cycle. When paged by network equipment, it wakes up and resumes connection to carry out business. The rest of the time, the terminal equipment is in a dormant state and does not carry out business.

In the related art, in order to ensure that the terminal device can communicate normally through the satellite access network when the satellite has signal coverage, the eDRX cycle is set to be shorter than the satellite's signal coverage time.

However, in the related technology, if the eDRX cycle is set to be less than the signal coverage period, the power saving mode is executed according to the eDRX cycle, which may cause the PTW of the eDRX cycle to exist during the satellite's no signal coverage period, that is, during the no signal coverage period. , the network device can also initiate terminal device paging according to the PTW. At this time, because the satellite has no signal coverage for the terminal device area, the connection with the terminal device has been released, so the paging will not succeed, but many users during the period of no signal coverage will This paging will increase unnecessary network overhead. For example, the satellite will provide satellite signal coverage for the area where the terminal device is located for 3 minutes every 3 hours, and the eDRX cycle is set to 179.2s (nearly 3 minutes), thus making the satellite no satellite signal coverage period every 3 hours. , there are still PTWs with multiple eDRX cycles. At this time, the network side device can continue to send paging request messages to the terminal device in the PTW of each eDRX cycle during the period without satellite signal coverage.

Contents of the invention

The paging method/device/equipment and storage medium proposed in the present disclosure are used to solve the technical problem of large signaling overhead and energy consumption caused by sending unnecessary messages in the methods of related technologies.

In the first aspect, embodiments of the present disclosure provide a paging method, which is executed by an AMF device, including:

Receive no coverage indication information; the no coverage indication information is used to indicate the no signal coverage period before the terminal device obtains the next satellite access network signal coverage;

Perform mobility management for the terminal device according to the no coverage indication information.

In the paging method provided by the present disclosure, the AMF device will receive no coverage indication information. The no coverage indication information is used to indicate the no signal coverage period before the terminal device obtains the next satellite access network signal coverage. After that, the AMF device Mobility management is performed for the terminal device based on the no coverage indication information. The mobility management specifically includes: the AMF device does not send a paging request message to the terminal device within the time period indicated by the no coverage indication information. It can be seen from this that in the method provided by the present disclosure, the AMF device will not send a paging request message to the terminal device during the no-signal coverage period, thus avoiding the occurrence of "AMF device sends a paging request to the terminal device during the no-signal coverage period" message, and the terminal device is unable to receive the paging request message because it is in a state of no signal coverage, resulting in the failure of the paging request message sent by the network device, resulting in the sending of unnecessary messages. This situation reduces the network side signal Reduce system overhead and save energy consumption.

Optionally, the no coverage indication information is also used to indicate that the AMF device does not send a paging request message to the terminal device during the no signal coverage period.

Optionally, performing mobility management for the terminal device according to the no coverage indication information includes:

No paging request message is sent to the terminal device within the time period indicated by the no coverage indication information.

Optionally, the receiving no coverage indication information includes at least one of the following:

Receiving the no coverage indication information sent by the terminal device;

Receive the no-coverage indication information sent by the access network device;

Receive the no coverage indication information sent by the network data analysis function NWDAF network element;

Receive the no-coverage indication information sent by an application server capable of obtaining satellite ephemeris information.

Optionally, the method also includes:

Receive a first extended discontinuous reception eDRX parameter sent by the terminal device, where the first eDRX parameter is a parameter for the terminal device to request authorization from the AMF device.

Optionally, receive the first eDRX parameter and/or no coverage indication information sent by the terminal device, including:

Receive a registration request or registration update request sent by the terminal device, where the registration request or registration update request includes the first eDRX parameter and/or no coverage indication information.

Optionally, the method also includes:

eDRX parameters are formulated or authorized for the terminal device according to the time period indicated by the no coverage indication information.

Optionally, authorizing eDRX parameters for the terminal device according to the time period indicated by the no coverage indication information includes:

Perform eDRX parameter authorization based on the time period indicated by the no coverage indication information and/or the first eDRX parameter to determine the second eDRX parameter;

In response to successful authorization, a registration success message or a registration update success message is sent to the terminal device, and the registration success message or the registration update success message includes the second eDRX parameter authorized by the AMF device.

Optionally, the method also includes:

Send a paging request message to the terminal device according to the second eDRX parameter and no coverage indication information.

Optionally, sending a paging request message to the terminal device according to the second eDRX parameter and no coverage indication information includes:

At a time other than the time period indicated by the no coverage indication information, the paging request message may be sent to the terminal device in the paging time window PTW of the eDRX cycle of the second eDRX parameter.

Optionally, the no coverage indication information includes at least one of the following information:

The start time of the period without satellite access network signal coverage and the duration of the period without satellite access network signal coverage;

The start time and predetermined value of signal coverage without satellite access network. The predetermined value is: rounding up the quotient of the duration of signal coverage without satellite access network and the eDRX cycle of the first eDRX parameter or the second eDRX parameter. or the value obtained by rounding down;

The start and end time of no satellite access network signal coverage.

In the second aspect, embodiments of the present disclosure provide a paging method, which is executed by a terminal device, including:

Send no-coverage indication information to the AMF device; wherein the no-coverage indication information is used to indicate: a no-signal coverage period before the terminal device obtains next satellite access network signal coverage.

Optionally, the method also includes:

In response to the time length between the current time and the end time of signal coverage of the terminal equipment by the satellite access network used by the terminal equipment being less than the preset time length, the non-coverage indication information is sent to the AMF device.

Optionally, the method also includes:

Send a first eDRX parameter to the AMF device, where the first eDRX parameter is a parameter for the terminal device to request authorization from the AMF device;

Receive the authorized second eDRX parameter sent by the AMF device.

Optionally, the method also includes:

In response to the terminal device accessing the satellite access network, obtaining satellite ephemeris information;

The satellite coverage information corresponding to the terminal device is determined based on the satellite ephemeris information and the location information of the terminal device; wherein, the satellite coverage information is used to indicate at least one of the following: time when signal coverage starts, signal coverage duration, the time when signal coverage is lost, the duration of no signal coverage, and the time when signal coverage is next started; the location information of the terminal device indicates the current location of the terminal device, and/or the prediction of the terminal device at a predetermined time Location;

Determine the first eDRX parameter according to the satellite coverage information;

The non-coverage indication information is determined according to the satellite coverage information.

Optionally, sending the first eDRX parameter and/or no coverage indication information to the AMF device includes:

Send a registration request or registration update request to the AMF device, where the registration request or registration update request includes the first eDRX parameter and/or no coverage indication information;

The receiving the authorized second eDRX parameter sent by the AMF device includes:

Receive the second eDRX parameter sent by the AMF device through a registration success message or a registration update success message.

Optionally, the method also includes:

Listen for paging request messages.

Optionally, the monitoring of paging request messages includes:

The method further comprises monitoring a paging request message based on the second eDRX parameter.

Optionally, the monitoring of paging request messages based on the second eDRX parameter includes:

At a time other than the time period indicated by the no coverage indication information, the paging request message may be monitored in the PTW of the eDRX cycle of the second eDRX parameter.

The start time of signal coverage without satellite access network and the duration of signal coverage without satellite access network;

The start time and end time of signal coverage without satellite access network.

In a third aspect, embodiments of the present disclosure provide a paging method, which is executed by at least one of an access network device, an NWDAF network element, and an application server capable of obtaining satellite ephemeris information, including:

Optionally, the method also includes:

The satellite coverage information corresponding to the terminal device is determined based on the satellite ephemeris information and the location information of the terminal device; wherein the satellite coverage information is used to indicate at least one of the following: time when signal coverage starts, signal coverage duration, the time when signal coverage is lost, the duration of no signal coverage, and the time when signal coverage is next started; the location information of the terminal device indicates the current location of the terminal device, and/or the prediction of the terminal device at a predetermined time Location;

In a fourth aspect, embodiments of the present disclosure provide a communication device, which is configured in an AMF device and includes:

A receiving module, configured to receive no-coverage indication information; the no-coverage indication information is used to indicate the no-signal coverage period before the terminal device obtains the next satellite access network signal coverage;

A management module, configured to perform mobility management for the terminal device according to the no coverage indication information.

In a fifth aspect, embodiments of the present disclosure provide a communication device, which is configured in a terminal device and includes:

A sending module, configured to send no-coverage indication information to the AMF device; wherein the no-coverage indication information is used to indicate: a no-signal coverage period before the terminal device obtains next satellite access network signal coverage.

In a sixth aspect, embodiments of the present disclosure provide a communication device configured in at least one of an access network device, an NWDAF network element, and an application server capable of obtaining satellite ephemeris information, including:

In a seventh aspect, an embodiment of the present disclosure provides a communication device. The communication device includes a processor. When the processor calls a computer program in a memory, it executes the method described in the first aspect.

In an eighth aspect, an embodiment of the present disclosure provides a communication device. The communication device includes a processor. When the processor calls a computer program in a memory, it executes the method described in the second aspect.

In a ninth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor. When the processor calls a computer program in a memory, the method described in the third aspect is executed.

In a tenth aspect, an embodiment of the present disclosure provides a communication device. The communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The method described in the first aspect above.

In an eleventh aspect, an embodiment of the present disclosure provides a communication device. The communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device Perform the method described in the second aspect above.

In a twelfth aspect, an embodiment of the present disclosure provides a communication device. The communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device Perform the method described in the third aspect above.

In a thirteenth aspect, an embodiment of the present disclosure provides a communication device. The device includes a processor and an interface circuit. The interface circuit is used to receive code instructions and transmit them to the processor. The processor is used to run the code instructions to cause The device performs the method described in the first aspect above.

In a fourteenth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the method described in the second aspect above.

In a fifteenth aspect, an embodiment of the present disclosure provides a communication device. The device includes a processor and an interface circuit. The interface circuit is used to receive code instructions and transmit them to the processor. The processor is used to run the code instructions to cause The device performs the method described in the third aspect above.

In a sixteenth aspect, an embodiment of the present disclosure provides a core network system, the system including:

The NWDAF network element is used to send no-coverage indication information to the AMF device; where the no-coverage indication information is used to indicate: the no-signal coverage period before the terminal device obtains the next satellite access network signal coverage;

AMF equipment, used to receive no coverage indication information;

The AMF device is also used to perform mobility management for the terminal device based on the no coverage indication information.

In the seventeenth aspect, an embodiment of the present disclosure provides a communication system, which is used to execute the method described in any one of the first to third aspects above.

In an eighteenth aspect, an embodiment of the present disclosure provides a communication system, which includes the communication device described in the third aspect to the communication device described in the fourth aspect, or the system includes the communication device described in the seventh aspect to The communication device according to the ninth aspect, or the system includes the communication device according to the tenth aspect to the communication device according to the twelfth aspect, or the system includes the communication device according to the thirteenth aspect through the tenth aspect. The communication device described in the five aspects.

In a nineteenth aspect, embodiments of the present invention provide a computer-readable storage medium for storing instructions used by the above-mentioned network device. When the instructions are executed, the terminal device is caused to execute the above-mentioned first to third aspects. The method described in any of the aspects.

In the twentieth aspect, the present disclosure further provides a computer program product comprising a computer program, which, when executed on a computer, enables the computer to execute the method described in any one of the first to third aspects above.

In a twenty-first aspect, the present disclosure provides a chip system. The chip system includes at least one processor and an interface, and is used to support a network device to implement the functions involved in the method described in any one of the first to third aspects. , for example, determine or process at least one of the data and information involved in the above method. In a possible design, the chip system further includes a memory, and the memory is used to store necessary computer programs and data for the source secondary node. The chip system may be composed of chips or may include chips and other discrete devices.

In a twenty-second aspect, the present disclosure provides a computer program which, when executed on a computer, enables the computer to execute the method described in any one of the first to third aspects above.

Description of drawings

The above and/or additional aspects and advantages of the present disclosure will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

Figure 1 is a schematic architectural diagram of a communication system provided by an embodiment of the present disclosure;

FIG2 is a schematic diagram of a flow chart of a paging method provided by another embodiment of the present disclosure;

Figure 3 is a schematic flowchart of a paging method provided by yet another embodiment of the present disclosure;

Figure 4 is a schematic flowchart of a paging method provided by another embodiment of the present disclosure;

Figure 5 is a schematic flowchart of a paging method provided by another embodiment of the present disclosure;

FIG6 is a flow chart of a paging method provided in yet another embodiment of the present disclosure;

Figure 7 is a schematic flowchart of a paging method provided by yet another embodiment of the present disclosure;

Figure 8 is a schematic flowchart of a paging method provided by an embodiment of the present disclosure;

Figure 9 is a schematic flowchart of a paging method provided by another embodiment of the present disclosure;

Figure 10 is a schematic flowchart of a paging method provided by yet another embodiment of the present disclosure;

FIG11a is a schematic flow chart of a paging method provided by yet another embodiment of the present disclosure;

Figure 11b is a schematic flowchart of a paging method provided by yet another embodiment of the present disclosure;

Figure 12 is a schematic flowchart of a paging method provided by another embodiment of the present disclosure;

Figure 13 is a schematic flowchart of a paging method provided by yet another embodiment of the present disclosure;

Figure 14a is a schematic flowchart of a paging method provided by yet another embodiment of the present disclosure;

Figure 14b is an interactive flow chart of a paging method provided by yet another embodiment of the present disclosure;

Figure 15 is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure;

Figure 16 is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure;

Figure 17a is a schematic structural diagram of a communication device provided by another embodiment of the present disclosure;

Figure 17b is a schematic structural diagram of a core network system provided by an embodiment of the present disclosure;

Figure 18 is a block diagram of a user equipment provided by an embodiment of the present disclosure;

Figure 19 is a block diagram of a network side device provided by an embodiment of the present disclosure.

Detailed ways

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with embodiments of the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of embodiments of the present disclosure as detailed in the appended claims.

The terminology used in the embodiments of the present disclosure is for the purpose of describing specific embodiments only and is not intended to limit the embodiments of the present disclosure. As used in the embodiments of the present disclosure and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will also be understood that the term "and/or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used to describe various information in the embodiments of the present disclosure, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the embodiments of the present disclosure, the first information may also be called second information, and similarly, the second information may also be called first information. Depending on the context, the words "if" and "if" as used herein may be interpreted as "when" or "when" or "in response to determining."

Embodiments of the present disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present disclosure and are not to be construed as limitations of the present disclosure.

To facilitate understanding, the terminology involved in this application is first introduced.

1. Extended Discontinuous Reception (eDRX)

The terminal device performs power saving according to the eDRX parameters.

2. Paging Time Window (PTW)

The PTW is set within the eDRX cycle. The terminal device can only receive paging messages from the network for the terminal device within the set PTW. The rest of the time, the terminal device is in a dormant state and does not receive paging messages.

In order to better understand a paging method disclosed in the embodiment of the present disclosure, the communication system to which the embodiment of the present disclosure is applicable is first described below.

Please refer to FIG. 1 , which is a schematic architectural diagram of a communication system provided by an embodiment of the present disclosure. The communication system may include but is not limited to one network device and one terminal device. The number and form of devices shown in Figure 1 are only for examples and do not constitute a limitation on the embodiments of the present disclosure. In actual applications, two or more devices may be included. Network equipment, two or more terminal devices. The communication system shown in Figure 1 includes a terminal device 11 and an AMF device 12 as an example.

It should be noted that the technical solutions of the embodiments of the present disclosure can be applied to various communication systems, such as long term evolution (LTE) system, fifth generation (5G) mobile communication system, 5G new radio (NR) system, or other future new mobile communication systems.

The AMF device 12 in the embodiment of the present disclosure is a device deployed in the core network. The main functions of the AMF device 12 are to provide user connections, manage users, and complete service bearings, and serve as an interface for the bearer network to provide to external networks. For example, AMF equipment in a 5G NR system can include access and mobility management function (Access and Mobility Management Function, AMF) network elements, user plane function (User Plane Function, UPF) network elements and session management function (Session Management Function) , SMF) network elements, etc.

For example, the AMF device 12 in the embodiment of the present application may include a location management function network element. Optionally, the location management function network element includes a location server. The location server can be implemented as any of the following: LMF (Location Management Function, location management network element), E SMLC (Enhanced Serving Mobile Location Center, enhanced service) mobile positioning center), SUPL (Secure User Plane Location, secure user plane positioning), SUPL SLP (SUPL Location Platform, secure user plane positioning platform).

The terminal device 11 in the embodiment of the present disclosure is an entity on the user side for receiving or transmitting signals, such as a mobile phone. Terminal equipment can also be called terminal equipment (terminal), user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal equipment (mobile terminal, MT), etc. The terminal device can be a car with communication functions, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with wireless transceiver functions, a virtual reality (VR) terminal device, an augmented reality ( augmented reality (AR) terminal equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self-driving, wireless terminal equipment in remote medical surgery, smart grid ( Wireless terminal equipment in smart grid, wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, wireless terminal equipment in smart home, etc. The embodiments of the present disclosure do not limit the specific technology and specific equipment form used by the terminal equipment.

It can be understood that the communication system described in the embodiments of the present disclosure is to more clearly illustrate the technical solutions of the embodiments of the present disclosure, and does not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure. As those of ordinary skill in the art will know, With the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present disclosure are also applicable to similar technical problems.

The paging method/device/equipment and storage medium provided by the embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

Figure 2 is a schematic flow chart of a paging method provided by an embodiment of the present disclosure. The method is executed by an AMF (Access and Mobility Management Function) device. As shown in Figure 2, the paging method The calling method may include the following steps:

Step 201: Receive no coverage indication information. The no coverage indication information is used to indicate the no signal coverage period before the terminal device obtains the next satellite access network signal coverage.

Among them, in one embodiment of the present disclosure, the method of the present disclosure is applied to a satellite access network. Specifically, when a terminal device accesses the network through a satellite, based on the satellite type (non-terrestrial synchronization type), the number of satellites, and satellite beam limitations, the satellite will provide discontinuous coverage for the area where the terminal device is located (that is, a specific time period for a specific signal coverage is provided in the area, and signal coverage cannot be provided in the same area outside a specific time period), because when the terminal device has no signal coverage, the AMF device will still continue to send paging request messages to the terminal device. Therefore, in order to avoid the AMF device still sending paging request messages to the terminal device during the period of no signal coverage, resulting in unnecessary energy consumption, the AMF device side usually needs to obtain the no coverage indication information so that subsequent operations can be performed based on the no coverage indication information. Certain energy-saving operations.

And, in one embodiment of the present disclosure, the above-mentioned no coverage indication information may include at least one of the following information:

The start time and predetermined value of signal coverage without satellite access network. The predetermined value is: rounding up or rounding up the quotient of the duration of signal coverage without satellite access network and the eDRX cycle of the first eDRX parameter or the second eDRX parameter. The value obtained by rounding down (for example, the eDRX cycle is 3 hours and the duration of no satellite signal coverage is 8 hours, then the predetermined value can be set to 2 or 3);

Among them, in an embodiment of the present disclosure, the above-mentioned eDRX parameters may include an eDRX cycle and PTW, and the eDRX parameters may be used for the terminal device to achieve a certain degree of power saving effect. Specifically, the terminal device may only receive the paging message sent by the network device within the PTW of each eDRX cycle, and be in a power saving state during the rest of the time. And, in one embodiment of the present disclosure, the terminal device usually needs to request the eDRX parameters from the AMF device first, and the AMF device authorizes the eDRX parameters to the terminal device, and then communicates based on the eDRX parameters authorized by the AMF device. Based on this, in one embodiment of the present disclosure, the above-mentioned first eDRX parameter is specifically a parameter for the terminal device to request authorization from the AMF device, and the above-mentioned second eDRX parameter is specifically a parameter for authorization by the AMF device, wherein the first eDRX parameter Can be the same as or different from the second eDRX parameter.

Further, in an embodiment of the present disclosure, the above method of receiving no coverage indication information may include at least one of the following:

Receive no coverage indication information sent by the terminal device;

Receive no coverage indication information sent by the access network equipment;

Receive no coverage indication information sent by NWDAF (Network Data Analytics Function) network element;

Receive no coverage indication information sent by an application server capable of obtaining satellite ephemeris information.

It should be noted that, in an embodiment of the present disclosure, when different devices send no-coverage indication information to the AMF device, the specific content included in the no-coverage indication information is also different.

Specifically, in one embodiment of the present disclosure, when at least one of the access network device, the NWDAF network element, and the application server capable of obtaining satellite ephemeris information sends no coverage indication information to the AMF device, the no coverage indication The information may include at least one of the following information:

In another embodiment of the present disclosure, when the terminal device sends no coverage indication information to the AMF device, the no coverage indication information may include at least one of the following information:

The start time and predetermined value of signal coverage without satellite access network. The predetermined value is: rounding up or rounding up the quotient of the duration of signal coverage without satellite access network and the eDRX cycle of the first eDRX parameter or the second eDRX parameter. The value obtained by rounding down;

In addition, it should be noted that in one embodiment of the present disclosure, the above-mentioned no coverage indication information may be determined between the current time and the end time of signal coverage of the terminal device by the satellite access network used by the terminal device. When the duration is less than the preset duration (that is, when the terminal device is about to leave the signal coverage of the current access satellite), at least one of the terminal device, access network device, NWDAF, and application server capable of obtaining satellite ephemeris information Sent to the AMF device. Alternatively, the above-mentioned non-coverage indication information may also be at any time within the time period when the terminal equipment has signal coverage (such as the time when the terminal equipment just accesses the current access satellite or the preset time period when the terminal equipment accesses the current access satellite). (e.g. after 10s) is sent to the AMF device. The no-coverage indication information may be sent to the AMF device through a registration request or a registration update request.

Step 202: Perform mobility management for the terminal device according to the no coverage indication information.

Among them, in one embodiment of the present disclosure, the above-mentioned method of performing mobility management for a terminal device according to the no-coverage indication information may include: not sending a paging request message to the terminal device within the time period indicated by the no-coverage indication information. It should be noted that, in one embodiment of the present disclosure, the above-mentioned "do not send a paging request message to the terminal device within the time period indicated by no coverage indication information" can be specifically understood as: during the time period indicated by no coverage indication information, Even if the PTW is reached during the time period, the AMF device will not send a paging request message to the terminal device, thus avoiding the AMF device from sending unnecessary messages to the terminal device during the period of no signal coverage, reducing signaling and network side Power consumption overhead.

And, in one embodiment of the present disclosure, when the no-coverage indication information received by the AMF device is different, the above method of not sending a paging request message to the terminal device within the time period indicated by the no-coverage indication information is also different.

Specifically, in one embodiment of the present disclosure, when the received no-coverage indication information includes the start time of no satellite access network signal coverage and the duration of no satellite access network signal coverage, the above-mentioned no-coverage indication The method of not sending a paging request message to the terminal device within the time period indicated by the information may include: starting from the start time when there is no satellite access network signal coverage, and within the subsequent duration, not sending the paging request message to the terminal device.

And, in another embodiment of the present disclosure, when the received no-coverage indication information includes a start time and a predetermined value of no satellite access network signal coverage, the above-mentioned no-coverage indication information is not provided to the user within the time period indicated by the no-coverage indication information. The method for the terminal device to send the paging request message may include: starting from the start time when there is no satellite access network signal coverage, not sending the paging request message to the terminal device, and setting a counter at the same time, and setting the count value of the counter to the predetermined value , every time an eDRX cycle passes, the count value is decremented by one, until the count value of the counter becomes 0, the action of "not sending a paging request message to the terminal device" is stopped. Alternatively, from the start time when there is no satellite access network signal coverage, no paging request message is sent to the terminal device, and at the same time, the number of eDRX cycles that have passed is started to be counted, and in response to the count value being equal to the predetermined value, stop " Do not send a paging request message to the terminal device" action.

In another embodiment of the present disclosure, when the received no-coverage indication information includes the start time and end time of no satellite access network signal coverage, the above-mentioned no-coverage indication information is not sent to the terminal device within the time period indicated by the no-coverage indication information. The method of sending a paging request message may include: not sending a paging request message to the terminal device during a period from a start time without satellite access network signal coverage to an end time without satellite access network signal coverage.

It should be noted that in the embodiments of the present disclosure, other core network elements with similar functions to the AMF can also be used to implement the same functions, such as MME, etc. as a replacement for the AMF. The implementation schemes are similar and will not be described in detail here.

In summary, in the paging method provided in the embodiment of the present disclosure, the AMF device will receive no coverage indication information, and the no coverage indication information is used to indicate the time period of no signal coverage before the terminal device obtains the next satellite access network signal coverage. After that, the AMF device will perform mobility management for the terminal device according to the no coverage indication information. Among them, the mobility management specifically includes: the AMF device does not send a paging request message to the terminal device during the time period indicated by the no coverage indication information. It can be seen that in the method provided in the present disclosure, the AMF device will not send a paging request message to the terminal device during the time period of no signal coverage, thereby avoiding the situation of "the AMF device sends a paging request message to the terminal device during the time period of no signal coverage, and the terminal device is in a state of no signal coverage and cannot receive the paging request message, thereby causing the paging request message sent by the network device to fail, resulting in unnecessary message sending". This reduces the signaling and system overhead on the network side and saves energy consumption.

Figure 3 is a schematic flowchart of a paging method provided by an embodiment of the present disclosure. The method is executed by an AMF device. As shown in Figure 3, the paging method may include the following steps:

Step 301: Receive no coverage indication information, where the no coverage indication information is used to indicate the time period of no signal coverage for the terminal device before obtaining the next satellite access network signal coverage, and the no coverage indication information is also used to indicate: the AMF device does not send a paging request message to the terminal device during the time period of no signal coverage.

In one embodiment of the present disclosure, the difference between this embodiment and the above-mentioned embodiment of FIG. 2 is that in this embodiment, in addition to indicating the no-signal coverage period, the no-coverage indication information also indicates: No paging request message is sent to the terminal device during the signal coverage period. In the above embodiment of Figure 2, the no-coverage indication information received by the AMF device only indicates the no-signal coverage time period, but does not indicate that the AMF device does not send a paging request message to the terminal device during the no-signal coverage time period.

Therefore, in this embodiment, the AMF device specifically performs mobility management for the terminal device based on the indication of the no coverage indication information. In the above embodiment of FIG. 2, after receiving the no-coverage indication information indicating the no-signal coverage period, the AMF device will directly perform mobility management for the terminal device based on the no-coverage indication information by default.

In addition, other details about this step can be referred to the above embodiment description.

To sum up, in the paging method provided by the embodiment of the present disclosure, the AMF device will receive no coverage indication information. The no coverage indication information is used to instruct the terminal device to perform no coverage before obtaining the next satellite access network signal coverage. After the signal coverage period, the AMF device will perform mobility management for the terminal device based on the no coverage indication information. The mobility management specifically includes: the AMF device does not send a paging request message to the terminal device within the time period indicated by the no coverage indication information. It can be seen from this that in the method provided by the present disclosure, the AMF device will not send a paging request message to the terminal device during the no-signal coverage period, thus avoiding the occurrence of "AMF device sends a paging request to the terminal device during the no-signal coverage period" message, and the terminal device is unable to receive the paging request message because it is in a state of no signal coverage, resulting in the failure of the paging request message sent by the network device, resulting in the sending of unnecessary messages. This situation reduces the network side signal Reduce system overhead and save energy consumption.

FIG. 4 is a flow chart of a paging method provided in an embodiment of the present disclosure. The method is executed by an AMF device. As shown in FIG. 4 , the paging method may include the following steps:

Step 401: Receive the first eDRX parameter sent by the terminal device.

In one embodiment of the present disclosure, the above-mentioned first eDRX parameter is a parameter for the terminal device to request authorization from the AMF device. Specifically, in an embodiment of the present disclosure, the first eDRX parameter may include an eDRX cycle and a PTW.

And, in one embodiment of the present disclosure, the above-mentioned first eDRX parameter may be determined by the terminal device based on the satellite ephemeris information of the currently accessed satellite and the location information of the terminal device. Specifically, how the terminal device determines the first eDRX parameter based on the satellite ephemeris information of the currently accessed satellite and the location information of the terminal device will be described in detail in subsequent embodiments.

Further, in one embodiment of the present disclosure, the above method of receiving the first eDRX parameter sent by the terminal device may include: receiving the first eDRX parameter sent by the terminal device through a registration request or a registration update request.

In one embodiment of the present disclosure, the above-mentioned first eDRX parameter may be the time period between the current moment when the terminal device is determined and the end time of signal coverage of the terminal device by the satellite access network used by the terminal device. It is sent by the terminal device to the AMF device when it is less than the preset time period (that is, the terminal device is about to leave the signal coverage of the current access satellite).

Or, in another embodiment of the present disclosure, the above-mentioned first eDRX parameter can also be sent to the AMF device at any time during the period when the terminal device is in signal coverage.

Figure 5 is a schematic flowchart of a paging method provided by an embodiment of the present disclosure. The method is executed by an AMF device. As shown in Figure 5, the paging method may include the following steps:

Step 501: Develop or authorize eDRX parameters for the terminal device according to the time period indicated by the non-coverage indication information to determine the second eDRX parameter (ie, the eDRX parameter authorized by the AMF device), and send a registration success message or a registration update success message to the terminal device. . The registration success message or the registration update success message includes the second eDRX parameter.

And, in one embodiment of the present disclosure, the above-mentioned specific method of formulating eDRX parameters for the terminal device based on the time period indicated by the no-coverage indication information may be: formulating the most appropriate eDRX parameters for the terminal device based on the time period indicated by the no-coverage indication information. The eDRX parameters configured for the terminal equipment. Among them, the eDRX cycle and PTW in the eDRX parameters formulated by the network equipment are the most suitable for the terminal equipment. Specifically, the above-mentioned most suitable can be understood as: the eDRX cycle and PTW of the eDRX parameter should satisfy: not only to ensure that there is a PTW in the signal coverage time period except the no signal coverage time period, so as to ensure that there is The terminal device during the coverage period is reachable (that is, after the AMF device sends a message to the terminal device, the terminal device can respond to the message to the AMF device), and it can also ensure that paging is minimized during periods of no signal coverage to avoid unnecessary network overhead.

Further, in one embodiment of the present disclosure, authorizing eDRX parameters for the terminal device based on the time period indicated by the no-coverage indication information to determine the second eDRX parameter may include: based on the time period indicated by the no-coverage indication information and/ Or the first eDRX parameter is used for eDRX parameter authorization to determine the second eDRX parameter. The following is an example of the above-mentioned specific method of determining the second eDRX parameter. Of course, this disclosure is only a part of the examples, but it can be understood that the method of authorizing eDRX parameters not shown in this disclosure is also within the scope of protection of this disclosure. .

Among them, in one embodiment of the present disclosure, a method for performing eDRX parameter authorization based on the time period indicated by the coverage absence indication information and/or the first eDRX parameter to determine the second eDRX parameter may include at least one of the following:

The AMF device directly determines the first eDRX parameter as the second eDRX parameter authorized by the AMF device;

Determine the eDRX parameters specified by the AMF device as the second eDRX parameters authorized by the AMF device;

Modify the first eDRX parameter requested by the terminal device based on the no-coverage indication information, and determine the modified eDRX parameter as the second eDRX parameter authorized by the AMF device.

And, it should be noted that the above-mentioned formulation or authorization of eDRX parameters is jointly implemented by the AMF device and network elements such as SMF (Service Management Function), UDM (Unified Data Management), and PCF (Policy Control Function). Among them, this part of the content is the same as the prior art, and the embodiments of the present disclosure are not repeated here.

Further, in one embodiment of the present disclosure, in response to the authorization being successful, the AMF device will send a registration success message or a registration update success message to the terminal device, and the registration success message or the registration update success message includes the third number authorized by the AMF device. Two eDRX parameters, so that the terminal device can enter the eDRX mechanism based on the second eDRX parameter to only listen to the paging request message within the PTW window of each eDRX cycle in the second eDRX parameter.

FIG6 is a flow chart of a paging method provided in an embodiment of the present disclosure. The method is executed by an AMF device. As shown in FIG6 , the paging method may include the following steps:

Step 601: Send a paging request message to the terminal device according to the second eDRX parameter and no coverage indication information.

Wherein, in one embodiment of the present disclosure, the above-mentioned method of sending a paging request message to a terminal device according to the second eDRX parameter and the no-coverage indication information may include: outside the time period indicated by the no-coverage indication information ( That is, the terminal device is within the signal coverage period), and can send a paging request message to the terminal device in the PTW of the eDRX cycle of the second eDRX parameter, thereby avoiding the "AMF device sending paging message during the non-signal coverage period" The call request message reduces signaling overhead and saves energy consumption. It also enables normal business communication between the terminal equipment and the AMF equipment during the signal coverage period.

Further, in an embodiment of the present disclosure, after the AMF device sends a paging request message to the terminal device, the terminal device may initiate a service request process after receiving the paging request message to activate the user plane connection, so that Conduct business.

Figure 7 is a schematic flowchart of a paging method provided by an embodiment of the present disclosure. The method is executed by a terminal device. As shown in Figure 7, the paging method may include the following steps:

Step 701: Send no-coverage indication information to the AMF device. The no-coverage indication information is used to indicate: the no-signal coverage period before the terminal device obtains the next satellite access network signal coverage.

Wherein, in an embodiment of the present disclosure, the above-mentioned no coverage indication information may include at least one of the following information:

Furthermore, for detailed introduction to the non-coverage indication information, please refer to the relevant introduction in the above embodiments, and the embodiments of the present disclosure will not be described again here.

To sum up, in the paging method provided by the embodiment of the present disclosure, the terminal device will send no coverage indication information to the AMF device. The no coverage indication information is used to instruct the terminal device to obtain the next satellite access network signal coverage. After the previous no-signal coverage period, the AMF device will perform mobility management for the terminal device based on the no-coverage indication information. The mobility management specifically includes: the AMF device does not send a paging request message to the terminal device within the time period indicated by the no coverage indication information. It can be seen from this that in the method provided by the present disclosure, the AMF device will not send a paging request message to the terminal device during the no-signal coverage period, thus avoiding the occurrence of "AMF device sends a paging request to the terminal device during the no-signal coverage period" message, and the terminal device is unable to receive the paging request message because it is in a state of no signal coverage, resulting in the failure of the paging request message sent by the network device, resulting in the sending of unnecessary messages. This situation reduces the network side signal Reduce system overhead and save energy consumption.

Figure 8 is a schematic flowchart of a paging method provided by an embodiment of the present disclosure. The method is executed by a terminal device. As shown in Figure 8, the paging method may include the following steps:

Step 801: In response to the duration between the current moment and the end moment of the signal coverage of the terminal device by the satellite access network used by the terminal device is less than a preset duration, a no coverage indication message is sent to the AMF device.

Among them, in one embodiment of the present disclosure, the terminal device can determine the current time and the end time of the signal coverage of the terminal device by the satellite access network used by the terminal device based on the current satellite ephemeris information and the current location information of the terminal device. time is less than the preset time.

And, in one embodiment of the present disclosure, in response to the time length between the current time and the end time of the signal coverage of the terminal device by the satellite access network used by the terminal device being less than the preset time length, the terminal device is about to leave at this time When the signal coverage of the satellite access network enters the non-signal coverage state, the non-coverage indication information can be sent to the AMF device, so that the AMF device can determine the no-signal coverage before the terminal device obtains the next satellite access network signal coverage based on the non-coverage indication information. period.

For a detailed introduction to the no-coverage indication information, please refer to the relevant introduction in the above embodiments, and the embodiments of the present disclosure will not be described in detail here.

FIG. 9 is a flow chart of a paging method provided in an embodiment of the present disclosure. The method is executed by a terminal device. As shown in FIG. 9 , the paging method may include the following steps:

Step 901: Send no-coverage indication information to the AMF device. The no-coverage indication information is used to indicate: the no-signal coverage period before the terminal device obtains the next satellite access network signal coverage, and the no-coverage indication information is also used to indicate: : Do not send paging request messages to the terminal device during the period of no signal coverage.

For a detailed description of other contents in this embodiment, please refer to the relevant description in the above embodiment, and the embodiments of the present disclosure will not be described in detail here.

Figure 10 is a schematic flowchart of a paging method provided by an embodiment of the present disclosure. The method is executed by a terminal device. As shown in Figure 10, the paging method may include the following steps:

Step 1001: Send a first eDRX parameter to the AMF device.

In one embodiment of the present disclosure, the first eDRX parameter is a parameter for the terminal device to request authorization from the AMF device.

And, in one embodiment of the present disclosure, the above method of sending the first eDRX parameter to the AMF device may include: sending a registration request or a registration update request to the AMF device, where the registration request or registration update request includes the first eDRX parameter and/or Or no coverage indication information.

Among them, in one embodiment of the present disclosure, the above-mentioned first eDRX parameter can be sent to the AMF device when the terminal device determines that the duration between the current moment and the end moment of the signal coverage of the terminal device by the satellite access network used by the terminal device is less than a preset duration (that is, the terminal device is about to leave the signal coverage of the currently accessed satellite).

Alternatively, in another embodiment of the present disclosure, the above-mentioned first eDRX parameter may also be sent to the AMF device at any time during the signal coverage period of the terminal device.

Step 1002: Receive the second eDRX parameter sent by the AMF device.

In one embodiment of the present disclosure, the above method of receiving the second eDRX parameter sent by the AMF device may include: receiving the second eDRX parameter sent by the AMF device through a registration success message or a registration update success message.

For detailed introduction to other contents in this embodiment, please refer to the relevant introduction in the above-mentioned embodiment, and the embodiments of the present disclosure will not be described again here.

Figure 11a is a schematic flowchart of a paging method provided by an embodiment of the present disclosure. The method is executed by a terminal device. As shown in Figure 11a, the paging method may include the following steps:

Step 1101a: In response to the terminal device accessing the satellite access network, obtain satellite ephemeris information.

In one embodiment of the present disclosure, after accessing the satellite access network, the terminal device can obtain satellite ephemeris information through broadcast messages.

Step 1102a: Determine satellite coverage information corresponding to the terminal device based on the satellite ephemeris information and the location information of the terminal device.

Among them, in one embodiment of the present disclosure, the above-mentioned satellite coverage information is used to indicate at least one of the following: time when signal coverage starts, duration of signal coverage, time when signal coverage is lost, duration of no signal coverage, next start The time of signal coverage;

The location information of the terminal device indicates the current location of the terminal device, and/or the predicted location of the terminal device at a predetermined time (such as the predicted location in a future period of time).

Step 1103a: Determine the first eDRX parameter according to the satellite coverage information.

Figure 11b is a schematic flowchart of a paging method provided by an embodiment of the present disclosure. The method is executed by a terminal device. As shown in Figure 11b, the paging method may include the following steps:

Step 1101b: In response to the terminal device accessing the satellite access network, satellite ephemeris information is acquired.

Step 1102b: Determine satellite coverage information corresponding to the terminal device based on the satellite ephemeris information and the location information of the terminal device.

Step 1103b: Determine the non-coverage indication information based on the satellite coverage information.

Wherein, in one embodiment of the present disclosure, determining the non-coverage indication information according to the satellite coverage information includes:

Determine the time when satellite signal coverage is lost as the start time of the non-satellite access network signal coverage;

Determine the duration of no signal coverage as the duration of no satellite access network signal coverage;

The paging auxiliary indication information is determined based on the start time of the lack of satellite access network signal coverage and the duration of the lack of satellite access network signal coverage.

Or, in another embodiment of the present disclosure, determining the non-coverage indication information according to the satellite coverage information includes:

Round up or round down the quotient of the duration of no signal coverage and the eDRX cycle to obtain the predetermined value;

The non-coverage indication information is determined based on the start time of the non-satellite access network signal coverage and the predetermined value.

Or, in yet another embodiment of the present disclosure, determining the non-coverage indication information based on the satellite coverage information includes:

Determine the next time when satellite signal coverage starts as the end time of the non-satellite access network signal coverage;

The non-coverage indication information is determined based on the start time of the non-satellite access network signal coverage and the end time of the non-satellite access network signal coverage.

For detailed introduction to satellite coverage information, please refer to the relevant introduction in the above embodiments, and the embodiments of the present disclosure will not be described again here.

Figure 12 is a schematic flowchart of a paging method provided by an embodiment of the present disclosure. The method is executed by a terminal device. As shown in Figure 12, the paging method may include the following steps:

Step 1201: Monitor the paging request message.

Wherein, in an embodiment of the present disclosure, the above method of monitoring the paging request message may include: monitoring the paging request message based on the second eDRX parameter. Specifically, in one embodiment of the present disclosure, the terminal device may, at a time outside the time period indicated by the non-coverage indication information (that is, the terminal device is within the signal coverage time period), in the eDRX cycle of the second eDRX parameter Monitor paging request messages in the PTW.

Figure 13 is a schematic flowchart of a paging method provided by an embodiment of the present disclosure. The method is executed by at least one of an accessed network device, an NWDAF network element, and an application server capable of obtaining satellite ephemeris information. As shown in Figure As shown in 13, the paging method may include the following steps:

Step 1301: Send no-coverage indication information to the AMF device. The no-coverage indication information is used to indicate: the no-signal coverage period before the terminal device obtains the next satellite access network signal coverage.

To sum up, in the paging method provided by the embodiment of the present disclosure, at least one of the access network equipment, the NWDAF network element, and the application server capable of obtaining satellite ephemeris information will send no coverage indication information to the AMF equipment. , the no coverage indication information is used to indicate the no signal coverage period before the terminal device obtains the next satellite access network signal coverage. After that, the AMF device will perform mobility management for the terminal device based on the no coverage indication information. The mobility management specifically includes: the AMF device does not send a paging request message to the terminal device within the time period indicated by the no coverage indication information. It can be seen from this that in the method provided by the present disclosure, the AMF device will not send a paging request message to the terminal device during the no-signal coverage period, thus avoiding the occurrence of "AMF device sends a paging request to the terminal device during the no-signal coverage period" message, and the terminal device is unable to receive the paging request message because it is in a state of no signal coverage, resulting in the failure of the paging request message sent by the network device, resulting in the sending of unnecessary messages. This situation reduces the network side signal Reduce system overhead and save energy consumption.

Figure 14a is a schematic flowchart of a paging method provided by an embodiment of the present disclosure. The method is executed by at least one of an accessed network device, an NWDAF network element, and an application server capable of obtaining satellite ephemeris information, such as As shown in Figure 14a, the paging method may include the following steps:

Step 1401a: In response to the terminal device accessing the satellite access network, satellite ephemeris information is obtained.

Step 1402a: Determine satellite coverage information corresponding to the terminal device based on the satellite ephemeris information and the location information of the terminal device.

In one embodiment of the present disclosure, the satellite coverage information is used to indicate at least one of the following: the time when the signal coverage starts, the duration of the signal coverage, the time when the signal coverage is lost, the duration of no signal coverage, and the time when the signal coverage starts next time; the location information of the terminal device indicates the current location of the terminal device, and/or the predicted location of the terminal device at a predetermined time.

Step 1403a: Determine no coverage indication information based on satellite coverage information.

For detailed introduction of steps 1401a to 1403a, please refer to the relevant introductions in the above embodiments, and the embodiments of the present disclosure will not be described again here.

To sum up, in the paging method provided by the embodiment of the present disclosure, at least one of the access network device, the NWDAF network element, and the application server capable of obtaining satellite ephemeris information will send no coverage indication information to the AMF device. , the no coverage indication information is used to indicate the no signal coverage period before the terminal device obtains the next satellite access network signal coverage. After that, the AMF device will perform mobility management for the terminal device based on the no coverage indication information. The mobility management specifically includes: the AMF device does not send a paging request message to the terminal device within the time period indicated by the no coverage indication information. It can be seen from this that in the method provided by the present disclosure, the AMF device will not send a paging request message to the terminal device during the no-signal coverage period, thus avoiding the occurrence of "AMF device sends a paging request to the terminal device during the no-signal coverage period" message, and the terminal device is unable to receive the paging request message because it is in a state of no signal coverage, resulting in the failure of the paging request message sent by the network device, resulting in the sending of unnecessary messages. This situation reduces the network side signal Reduce system overhead and save energy consumption.

Based on the above description, Figure 14b is an interactive flow chart of a paging method provided by an embodiment of the present disclosure. As shown in Figure 14b, it may specifically include the following steps:

Step 1401b. The UE (User Equipment) (i.e., the aforementioned terminal equipment) uses satellite access to access the network (such as the 5GC network). The satellite access broadcasts the ephemeris information of the satellite access currently used by the UE. Make a broadcast.

Step 1402b: The UE receives and saves the ephemeris information.

Step 1403b: Based on the ephemeris information and the current location information of the UE, determine that the area where the UE is located is about to lose the signal coverage of the current satellite access (that is, the above-mentioned current time and the end time of the signal coverage of the terminal device by the satellite access network used by the terminal device) The duration between is less than the preset duration).

Step 1404b: The UE decides to use the eDRX power saving mechanism based on the ephemeris information and the UE's current location information, and determines the eDRX power saving parameters (i.e., the above-mentioned first eDRX parameters), where the eDRX power saving parameters include the eDRX cycle, PTW, etc.; at the same time According to the ephemeris information and combined with the determined eDRX power saving parameters, the auxiliary indication information (ie, the above-mentioned no coverage indication information) is determined.

Among them, in one embodiment of the present disclosure, the above-mentioned auxiliary indication information (ie, no coverage indication information) may include at least one of the following information:

Satellite non-coverage start time and non-coverage duration information (i.e., the above-mentioned start time of no satellite access network signal coverage and the duration of no satellite access network signal coverage);

Satellite non-coverage start time and counter. The counter indicates that the duration of no satellite signal coverage in the area where the UE is located is a multiple of the eDRX cycle (i.e., the above-mentioned start time and predetermined value of network signal coverage without satellite access. The predetermined value is: for no satellite access) The value obtained by rounding up or rounding down the quotient of the duration of network signal coverage and the eDRX cycle of the first eDRX parameter or the second eDRX parameter);

Satellite non-coverage start time and satellite non-coverage end time (i.e., the above-mentioned start time and end time of no satellite access network signal coverage).

Step 1405b: The UE determines that it is about to leave the current satellite access signal coverage and triggers a registration update request. The request message includes eDRX power saving parameters and auxiliary indication information.

Step 1406b: When the AMF receives the registration request and learns that the UE uses satellite access, it performs authorization according to the eDRX request value (ie, the above-mentioned second eDRX parameter).

Step 1407b: Complete the remaining processes required for registration update between AMF and SMF, UDM, PCF and other network elements.

Step 1408b: The AMF receives the registration update and returns a registration acceptance message (ie, the above-mentioned registration success message or registration update success message) to the UE, where the registration acceptance message contains the authorization eDRX parameter (ie, the above-mentioned second eDRX parameter).

Step 1409b: The UE enters the power saving state according to the eDRX parameter (ie, the above-mentioned second eDRX parameter), and the AMF determines that the UE has entered the power saving state according to the parameter (ie, the above-mentioned second eDRX parameter).

Step 1410b: During the PTW duration of the eDRX cycle, the AMF still initiates a paging request to the UE as needed (at this time the UE is still within the signal coverage of the current satellite access).

Step 1411b: The UE receives the paging request and initiates a service request process to activate the user plane connection to conduct business.

Step 1412b: According to the ephemeris information and user location, the UE enters the current satellite access no-signal coverage state.

Step 1413b: The UE enters the power saving state according to the eDRX parameter (ie, the above-mentioned second eDRX parameter), and the AMF determines that the UE enters the power saving state according to the parameter (ie, the above-mentioned second eDRX parameter).

Step 1414b: Based on the assistance indication information, the AMF determines that the UE has entered a period of no signal coverage for satellite access at this time.

Within the period indicated by the auxiliary indication information (that is, within the period indicated by the non-coverage indication information in the above embodiment), the AMF no longer sends paging messages to the UE. Or the indication information indicates that the UE enters a period of no signal coverage for satellite access. The AMF starts the counter (that is, the predetermined value in the above embodiment). Every time an eDRX cycle passes, the counter is decremented by 1. When the value becomes 0, it is a new eDRX cycle. At the beginning, AMF initiates a paging request within the PTW period.

Step 1415b: The current satellite access restores signal coverage to the UE again.

Step 1416b: According to the above 1410b-1411b, the AMF may initiate a paging request to the UE within the PTW of each eDRX cycle. After receiving the paging request, the UE initiates a service request process to activate the user plane connection in order to carry out services.

Figure 15 is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure. As shown in Figure 15, the device may include:

The receiving module 1501 is used to receive no coverage indication information; the no coverage indication information is used to indicate the no signal coverage period before the terminal device obtains the next satellite access network signal coverage;

The management module 1502 is configured to perform mobility management for the terminal device according to the no coverage indication information.

To sum up, in the communication device provided by the embodiment of the present disclosure, the AMF device will receive no coverage indication information. The no coverage indication information is used to indicate that the terminal device has no signal before obtaining the next satellite access network signal coverage. Coverage period, after which the AMF device will perform mobility management for the terminal device based on the non-coverage indication information. The mobility management specifically includes: the AMF device does not send a paging request message to the terminal device within the time period indicated by the no coverage indication information. It can be seen from this that in the method provided by the present disclosure, the AMF device will not send a paging request message to the terminal device during the no-signal coverage period, thus avoiding the occurrence of "AMF device sends a paging request to the terminal device during the no-signal coverage period" message, and the terminal device is unable to receive the paging request message because it is in a state of no signal coverage, resulting in the failure of the paging request message sent by the network device, resulting in the sending of unnecessary messages. This situation reduces the network side signal Reduce system overhead and save energy consumption.

Optionally, in an embodiment of the present disclosure, the no coverage indication information is also used to indicate that the AMF device does not send a paging request message to the terminal device during the no signal coverage period.

Optionally, in one embodiment of the present disclosure, the above-mentioned management module 1502 is also used to:

Optionally, in an embodiment of the present disclosure, the above-mentioned receiving module 1501 is also used to:

Receive no coverage indication information sent by the terminal device;

Receive the no coverage indication information sent by the NWDAF network element;

Optionally, in one embodiment of the present disclosure, the above device is also used for:

Receive a first eDRX parameter sent by a terminal device, where the first eDRX parameter is a parameter for the terminal device to request authorization from the AMF device.

Develop or authorize eDRX parameters for the terminal device according to the time period indicated by the no-coverage indication information.

Perform eDRX parameter authorization based on the time period indicated by the no-coverage indication information and/or the first eDRX parameter to determine the second eDRX parameter;

In response to the successful authorization, a registration success message or a registration update success message is sent to the terminal device, and the registration success message or registration update success message includes the second eDRX parameter authorized by the AMF device.

Send a paging request message to the terminal device according to the second eDRX parameter and the no coverage indication information.

At a time other than the time period indicated by the non-coverage indication information, the paging request message may be sent to the terminal device in the paging time window PTW of the eDRX cycle of the second eDRX parameter.

Optionally, in an embodiment of the present disclosure, the no coverage indication information includes at least one of the following information:

a start time of no satellite access network signal coverage and a predetermined value, where the predetermined value is: a value obtained by rounding up or rounding down a quotient of a duration of no satellite access network signal coverage and an eDRX cycle of the first eDRX parameter or the second eDRX parameter;

Figure 16 is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure. As shown in Figure 16, the device may include:

The sending module 1601 is used to send no coverage indication information to the AMF device; wherein the no coverage indication information is used to indicate: the no signal coverage time period before the terminal device obtains the next satellite access network signal coverage.

To sum up, in the communication device provided by the embodiment of the present disclosure, the terminal device will send no coverage indication information to the AMF device. The no coverage indication information is used to instruct the terminal device before obtaining the next satellite access network signal coverage. After the no-signal coverage period, the AMF device will perform mobility management for the terminal device based on the no-coverage indication information. The mobility management specifically includes: the AMF device does not send a paging request message to the terminal device within the time period indicated by the no coverage indication information. It can be seen from this that in the method provided by the present disclosure, the AMF device will not send a paging request message to the terminal device during the no-signal coverage period, thus avoiding the occurrence of "AMF device sends a paging request to the terminal device during the no-signal coverage period" message, and the terminal device is unable to receive the paging request message because it is in a state of no signal coverage, resulting in the failure of the paging request message sent by the network device, resulting in the sending of unnecessary messages. This situation reduces the network side signal Reduce system overhead and save energy consumption.

Optionally, in one embodiment of the present disclosure, the above device is further used for:

In response to the time length between the current time and the end time of signal coverage of the terminal device by the satellite access network used by the terminal device being less than the preset time length, no coverage indication information is sent to the AMF device.

Receive the authorized second eDRX parameter sent by the AMF device.

The satellite coverage information corresponding to the terminal device is determined based on the satellite ephemeris information and the location information of the terminal device; wherein the satellite coverage information is used to indicate at least one of the following: the time when the signal coverage starts, the duration of the signal coverage, and the time when the signal coverage is lost. time, the duration of no signal coverage, and the next time when signal coverage starts; the location information of the terminal device indicates the current location of the terminal device, and/or, the predicted location of the terminal device at the predetermined time;

Determine the first eDRX parameters based on satellite coverage information;

The non-coverage indication information is determined based on the satellite coverage information.

Send a registration request or a registration update request to the AMF device, where the registration request or the registration update request includes the first eDRX parameter and/or no coverage indication information.

Listen for paging request messages.

In response to receiving the registration success message or the registration update success message sent by the AMF device, the paging request message is monitored based on the second eDRX parameter authorized by the AMF device contained in the registration success message or the registration update success message.

At times other than the time period indicated by the non-coverage indication information, the paging request message may be monitored in the PTW of the eDRX cycle of the second eDRX parameter.

Figure 17a is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure. As shown in Figure 17a, the device may include:

The sending module 1701a is configured to send no-coverage indication information to the AMF device; wherein the no-coverage indication information is used to indicate: the no-signal coverage period before the terminal device obtains the next satellite access network signal coverage.

Determine the satellite coverage information corresponding to the terminal device based on the satellite ephemeris information and the location information of the terminal device; wherein the satellite coverage information is used to indicate at least one of the following: the time when the signal coverage starts, the duration of the signal coverage, the time when the signal coverage is lost, the duration of no signal coverage, and the time when the signal coverage starts next time; the location information of the terminal device indicates the current location of the terminal device, and/or the predicted location of the terminal device at a predetermined time;

The start and end time of no satellite access network signal coverage.

FIG. 17b is a schematic diagram of the structure of a core network system provided by an embodiment of the present disclosure. As shown in FIG. 17b , the system may include:

NWDAF network element 1701b is used to send no-coverage indication information to the AMF device; wherein, the no-coverage indication information is used to indicate: the no-signal coverage period before the terminal device obtains the next satellite access network signal coverage;

AMF device 1702b, used to receive no coverage indication information;

The AMF device 1702b is also used to perform mobility management for the terminal device according to the no coverage indication information.

Optionally, in an embodiment of the present disclosure, the above-mentioned NWDAF network element 1701b is also used for:

The satellite coverage information corresponding to the terminal device is determined based on the satellite ephemeris information and the location information of the terminal device; wherein the satellite coverage information is used to indicate at least one of the following: the time when the signal coverage starts, the duration of the signal coverage, the time when the signal coverage is lost, The duration of no signal coverage and the time when signal coverage starts next; the location information of the terminal device indicates the current location of the terminal device, and/or the predicted location of the terminal device at the predetermined time;

Optionally, in one embodiment of the present disclosure, the AMF device 1702b is further used for:

Optionally, in an embodiment of the present disclosure, the above-mentioned AMF device 1702b is also used for:

A registration request or a registration update request sent by a terminal device is received, where the registration request or the registration update request includes a first eDRX parameter and/or no coverage indication information.

Moreover, an embodiment of the present disclosure also provides a communication system for executing the method described in any one of the above-mentioned Figures 1-6.

Optionally, the communication system may include:

The terminal device is used to send no coverage indication information to the AMF device; wherein the no coverage indication information is used to indicate: the no signal coverage period before the terminal device obtains the next satellite access network signal coverage; and/or, access At least one of network equipment, NWDAF network elements, and application servers capable of obtaining satellite ephemeris information is used to send no coverage indication information to the AMF equipment;

AMF equipment, used to receive no coverage indication information;

The AMF device is also used to perform mobility management for the terminal device according to the no coverage indication information.

Optionally, in an embodiment of the present disclosure, the above terminal device is also used for:

Receive the authorized second eDRX parameters sent by the AMF device.

Determine the first eDRX parameters based on satellite coverage information;

Monitor paging request messages.

Monitor the paging request message based on the second eDRX parameter.

At times other than the time period indicated by the non-coverage indication information, the paging request message may be monitored in the PTW of the eDRX cycle of the second eDRX parameter; during the time period indicated by the non-coverage indication information, the paging request message may not be monitored.

Optionally, in an embodiment of the present disclosure, in response to the no-coverage indication information being sent by the terminal device, the no-coverage indication information includes at least one of the following information:

Optionally, in one embodiment of the present disclosure, the above-mentioned AMF device is also used for:

Optionally, in an embodiment of the present disclosure, the above-mentioned AMF device is also used for at least one of the following:

Receive no coverage indication information sent by the terminal device;

Receive no coverage indication information sent by the network data analysis function NWDAF network element;

Optionally, in an embodiment of the present disclosure, at least one of the above-mentioned NWDAF network elements, access network equipment, and application servers capable of obtaining satellite ephemeris information is also used to:

The satellite coverage information corresponding to the terminal device is determined based on the satellite ephemeris information and the location information of the terminal device; wherein the satellite coverage information is used to indicate at least one of the following: the time when the signal coverage starts, the duration of the signal coverage, the time when the signal coverage is lost, The duration of no signal coverage and the time when signal coverage starts next; the location information of the terminal device indicates the current location of the terminal device, and/or the predicted location of the terminal device at a predetermined time;

The non-coverage indication information is determined based on satellite coverage information.

Optionally, in an embodiment of the present disclosure, in response to the no coverage indication information being sent by at least one of the NWDAF network element, the access network device, and the application server capable of obtaining satellite ephemeris information, the no coverage The instruction information includes at least one of the following information:

Please refer to Figure 18, which is a schematic structural diagram of a communication device 1800 provided by an embodiment of the present application. The communication device 1800 may be a network device, a terminal device, a chip, a chip system, or a processor that supports a network device to implement the above method, or a chip, a chip system, or a processor that supports a terminal device to implement the above method. Processor etc. The device can be used to implement the method described in the above method embodiment. For details, please refer to the description in the above method embodiment.

Communication device 1800 may include one or more processors 1801. The processor 1801 may be a general-purpose processor or a special-purpose processor, or the like. For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data. The central processor can be used to control communication devices (such as base stations, baseband chips, terminal equipment, terminal equipment chips, DU or CU, etc.) and execute computer programs. , processing data for computer programs.

Optionally, the communication device 1800 may also include one or more memories 1802, on which a computer program 1804 may be stored. The processor 1801 executes the computer program 1804, so that the communication device 1800 performs the steps described in the above method embodiments. method. Optionally, the memory 1802 may also store data. The communication device 1800 and the memory 1802 can be provided separately or integrated together.

Optionally, the communication device 1800 may also include a transceiver 1805 and an antenna 1806. The transceiver 1805 may be called a transceiver unit, a transceiver, a transceiver circuit, etc., and is used to implement transceiver functions. The transceiver 1805 may include a receiver and a transmitter. The receiver may be called a receiver or a receiving circuit, etc., used to implement the receiving function; the transmitter may be called a transmitter, a transmitting circuit, etc., used to implement the transmitting function.

Optionally, the communication device 1800 may also include one or more interface circuits 1807. The interface circuit 1807 is used to receive code instructions and transmit them to the processor 1801 . The processor 1801 executes the code instructions to cause the communication device 1800 to perform the method described in the above method embodiment.

The communication device 1800 is a terminal device: the transceiver 1805 is used to perform steps 301 to 302 in Figure 3; steps 401 to 402 in Figure 4; steps 501 to 503 in Figure 5; steps 601a to 601 in Figure 6a Step 603a; step 601b to step 602b in Figure 6b. The processor 1801 is used to execute step 201 in Fig. 2; step 303-step 304 in Fig. 3; step 403 in Fig. 4; step 504 and step 505 in Fig. 5; step 604a in Fig. 6a; step 604 in Fig. 6b Step 603b; Step 701-Step 702 in Figure 7.

The communication device 1800 is a network device: the transceiver 1805 is used to execute step 1102a in Figure 11a. The processor 1801 is used to execute step 801 in Figure 8; steps 901 to 904 in Figure 9; steps 1001 to 1005 in Figure 10; step 1101a in Figure 11a; and steps 1101b and 1102b in Figure 11b.

In one implementation, the processor 1801 may include a transceiver for implementing receiving and transmitting functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuits, interfaces or interface circuits used to implement the receiving and transmitting functions can be separate or integrated together. The above-mentioned transceiver circuit, interface or interface circuit can be used for reading and writing codes/data, or the above-mentioned transceiver circuit, interface or interface circuit can be used for signal transmission or transfer.

In one implementation, the processor 1801 may store a computer program 1803, and the computer program 1803 runs on the processor 1801, causing the communication device 1800 to perform the method described in the above method embodiment. The computer program 1803 may be solidified in the processor 1801, in which case the processor 1801 may be implemented by hardware.

In one implementation, the communication device 1800 may include a circuit that can implement the functions of sending or receiving or communicating in the aforementioned method embodiments. The processor and transceiver described in the present application can be implemented in an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (nMetal-oxide-semiconductor, NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

The communication device described in the above embodiments may be a network device or a terminal device, but the scope of the communication device described in this application is not limited thereto, and the structure of the communication device may not be limited by FIG. 18 . The communication device may be a stand-alone device or may be part of a larger device. For example, the communication device may be:

(1) Independent integrated circuit IC, or chip, or chip system or subsystem;

(2) A collection of one or more ICs. Optionally, the IC collection may also include storage components for storing data and computer programs;

(3)ASIC, such as modem;

(4) Modules that can be embedded in other devices;

(5) Receivers, terminal equipment, intelligent terminal equipment, cellular phones, wireless equipment, handheld devices, mobile units, vehicle-mounted equipment, network equipment, cloud equipment, artificial intelligence equipment, etc.;

(6) Others, etc.

For the case where the communication device may be a chip or a chip system, refer to the schematic structural diagram of the chip shown in FIG. 19 . The chip shown in Figure 19 includes a processor 1901 and an interface 1902. The number of processors 1901 may be one or more, and the number of interfaces 1902 may be multiple.

Optionally, the chip also includes a memory 1903, which is used to store necessary computer programs and data.

Those skilled in the art can also understand that the various illustrative logical blocks and steps listed in the embodiments of this application can be implemented by electronic hardware, computer software, or a combination of both. Whether such functionality is implemented in hardware or software depends on the specific application and overall system design requirements. Those skilled in the art can use various methods to implement the described functions for each specific application, but such implementation should not be understood as exceeding the protection scope of the embodiments of the present application.

This application also provides a readable storage medium on which instructions are stored. When the instructions are executed by a computer, the functions of any of the above method embodiments are implemented.

This application also provides a computer program product, which, when executed by a computer, implements the functions of any of the above method embodiments.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program may be stored in or transferred from one computer-readable storage medium to another, for example, the computer program may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more available media integrated. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVD)), or semiconductor media (e.g., solid state disks, SSD)) etc.

A person skilled in the art may understand that the various numerical numbers such as first and second involved in the present application are only used for the convenience of description and are not used to limit the scope of the embodiments of the present application, but also indicate the order of precedence.

At least one in this application can also be described as one or more, and the plurality can be two, three, four or more, which is not limited by this application. In the embodiment of this application, for a technical feature, the technical feature is distinguished by "first", "second", "third", "A", "B", "C" and "D", etc. The technical features described in "first", "second", "third", "A", "B", "C" and "D" are in no particular order or order.

The corresponding relationships shown in each table in this application can be configured or predefined. The values of the information in each table are only examples and can be configured as other values, which are not limited by this application. When configuring the correspondence between information and each parameter, it is not necessarily required to configure all the correspondences shown in each table. For example, in the table in this application, the corresponding relationships shown in some rows may not be configured. For another example, appropriate deformation adjustments can be made based on the above table, such as splitting, merging, etc. The names of the parameters shown in the titles of the above tables may also be other names understandable by the communication device, and the values or expressions of the parameters may also be other values or expressions understandable by the communication device. When implementing the above tables, other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables. wait.

Predefinition in this application can be understood as definition, pre-definition, storage, pre-storage, pre-negotiation, pre-configuration, solidification, or pre-burning.

Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each specific application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be described again here.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application. should be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

A paging method, characterized in that it is executed by an access and mobility management function AMF device, including:

Receive no coverage indication information; the no coverage indication information is used to indicate the no signal coverage period before the terminal device obtains the next satellite access network signal coverage;

Mobility management is performed for the terminal device according to the no coverage indication information.
The method according to claim 1, wherein the no coverage indication information is also used to indicate that the AMF device does not send a paging request message to the terminal device during the no signal coverage period.
The method of claim 1 or 2, wherein performing mobility management for the terminal device according to the no coverage indication information includes:

No paging request message is sent to the terminal device within the time period indicated by the no coverage indication information.
The method of claim 1, wherein receiving no coverage indication information includes at least one of the following:

Receive the no coverage indication information sent by the terminal device;

Receive the no-coverage indication information sent by the access network device;

Receive the no coverage indication information sent by the network data analysis function NWDAF network element;

Receive the no-coverage indication information sent by an application server capable of obtaining satellite ephemeris information.
The method of claim 1, further comprising:

Receive a first extended discontinuous reception eDRX parameter sent by the terminal device, where the first eDRX parameter is a parameter for the terminal device to request authorization from the AMF device.
The method of claim 5, wherein receiving the first eDRX parameter and/or no coverage indication information sent by the terminal device includes:

Receive a registration request or a registration update request sent by the terminal device, where the registration request or the registration update request includes the first eDRX parameter and/or no coverage indication information.
The method of claim 6, further comprising:

eDRX parameters are formulated or authorized for the terminal device according to the time period indicated by the no coverage indication information.
The method of claim 7, wherein authorizing eDRX parameters for the terminal device according to the time period indicated by the no coverage indication information includes:

Perform eDRX parameter authorization based on the time period indicated by the no coverage indication information and/or the first eDRX parameter to determine the second eDRX parameter;

In response to the authorization being successful, a registration success message or a registration update success message is sent to the terminal device, where the registration success message or the registration update success message includes the second eDRX parameter authorized by the AMF device.
The method of claim 8, further comprising:

Send a paging request message to the terminal device according to the second eDRX parameter and no coverage indication information.
The method of claim 9, wherein sending a paging request message to the terminal device according to the second eDRX parameter and no coverage indication information includes:

At a time other than the time period indicated by the no coverage indication information, the paging request message may be sent to the terminal device in the paging time window PTW of the eDRX cycle of the second eDRX parameter.
The method according to any one of claims 8 to 10, characterized in that the no coverage indication information includes at least one of the following information:

The start time of the period without satellite access network signal coverage and the duration of the period without satellite access network signal coverage;

The start time and predetermined value of signal coverage without satellite access network. The predetermined value is: rounding up the quotient of the duration of signal coverage without satellite access network and the eDRX cycle of the first eDRX parameter or the second eDRX parameter. or the value obtained by rounding down;

The start time and end time of signal coverage without satellite access network.
A paging method, characterized in that it is executed by a terminal device, including:

Send no coverage indication information to the AMF device; wherein the no coverage indication information is used to indicate: the no signal coverage time period before the terminal device obtains the next satellite access network signal coverage.
The method of claim 12, further comprising:

In response to the time length between the current time and the end time of signal coverage of the terminal equipment by the satellite access network used by the terminal equipment being less than the preset time length, the non-coverage indication information is sent to the AMF device.
The method according to claim 12, wherein the no coverage indication information is also used to indicate that the AMF device does not send a paging request message to the terminal device during the no signal coverage period.
The method of claim 12, further comprising:

Send a first eDRX parameter to the AMF device, where the first eDRX parameter is a parameter for the terminal device to request authorization from the AMF device;

Receive the authorized second eDRX parameter sent by the AMF device.
The method of claim 15, further comprising:

In response to the terminal device accessing the satellite access network, obtaining satellite ephemeris information;

The satellite coverage information corresponding to the terminal device is determined based on the satellite ephemeris information and the location information of the terminal device; wherein the satellite coverage information is used to indicate at least one of the following: time when signal coverage starts, signal coverage duration, the time when signal coverage is lost, the duration of no signal coverage, and the time when signal coverage is next started; the location information of the terminal device indicates the current location of the terminal device, and/or the prediction of the terminal device at a predetermined time Location;

Determine the first eDRX parameter according to the satellite coverage information;

The non-coverage indication information is determined according to the satellite coverage information.
The method of claim 15, wherein sending the first eDRX parameter and/or no coverage indication information to the AMF device includes:

Send a registration request or registration update request to the AMF device, where the registration request or registration update request includes the first eDRX parameter and/or no coverage indication information;

The receiving the authorized second eDRX parameter sent by the AMF device includes:

Receive the second eDRX parameter sent by the AMF device through a registration success message or a registration update success message.
The method of claim 15, further comprising:

Listen for paging request messages.
The method of claim 18, wherein the monitoring of paging request messages includes:

Monitor paging request messages based on the second eDRX parameter.
The method of claim 19, wherein monitoring the paging request message based on the second eDRX parameter includes:

At a time other than the time period indicated by the no-coverage indication information, the paging request message may be monitored in the PTW of the eDRX cycle of the second eDRX parameter; within the time period indicated by the no-coverage indication information The paging request message is not listened to.
The method according to any one of claims 15 to 20, characterized in that the no coverage indication information includes at least one of the following information:

The start time of signal coverage without satellite access network and the duration of signal coverage without satellite access network;

The start time and predetermined value of signal coverage without satellite access network. The predetermined value is: rounding up the quotient of the duration of signal coverage without satellite access network and the eDRX cycle of the first eDRX parameter or the second eDRX parameter. or the value obtained by rounding down;

The start time and end time of signal coverage without satellite access network.
A paging method, characterized in that it is executed by at least one of an access network device, an NWDAF network element, and an application server capable of obtaining satellite ephemeris information, including:

Send no-coverage indication information to the AMF device; wherein the no-coverage indication information is used to indicate: a no-signal coverage period before the terminal device obtains next satellite access network signal coverage.
The method of claim 22, further comprising:

In response to the terminal device accessing the satellite access network, obtaining satellite ephemeris information;

The satellite coverage information corresponding to the terminal device is determined based on the satellite ephemeris information and the location information of the terminal device; wherein the satellite coverage information is used to indicate at least one of the following: time when signal coverage starts, signal coverage duration, the time when signal coverage is lost, the duration of no signal coverage, and the time when signal coverage is next started; the location information of the terminal device indicates the current location of the terminal device, and/or the prediction of the terminal device at a predetermined time Location;

The non-coverage indication information is determined according to the satellite coverage information.
The method of claim 22, wherein the no coverage indication information includes at least one of the following information:

The start time of signal coverage without satellite access network and the duration of signal coverage without satellite access network;

The start time and end time of signal coverage without satellite access network.
A communication device, configured in an AMF device, comprising:

A receiving module, configured to receive no-coverage indication information; the no-coverage indication information is used to indicate the no-signal coverage period before the terminal device obtains the next satellite access network signal coverage;

A management module, configured to perform mobility management for the terminal device according to the no coverage indication information.
A communication device configured in a terminal device, including:

A sending module, configured to send no-coverage indication information to the AMF device; wherein the no-coverage indication information is used to indicate: a no-signal coverage period before the terminal device obtains next satellite access network signal coverage.
A communication device configured in at least one of access network equipment, NWDAF network elements, and application servers capable of obtaining satellite ephemeris information, including:

A sending module configured to send no-coverage indication information to the AMF device; wherein the no-coverage indication information is used to indicate: a no-signal coverage period before the terminal device obtains next satellite access network signal coverage.
A communication device, characterized in that the device includes a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program stored in the memory, so that the device executes: The method of any one of claims 1 to 11, or the processor executes a computer program stored in the memory, so that the device performs the method of any one of claims 12 to 21, Or the processor executes a computer program stored in the memory, so that the device executes the method according to any one of claims 22 to 24.
A communication device, characterized by comprising: a processor and an interface circuit, wherein

The interface circuit is used to receive code instructions and transmit them to the processor;

The processor is configured to run the code instructions to perform the method as claimed in any one of claims 1 to 11, or to run the code instructions to perform the method as claimed in any one of claims 12 to 21. The method described in any one of claims 22 to 24, or for running the code instructions to perform the method according to any one of claims 22 to 24.
A computer-readable storage medium for storing instructions, which when executed, enable the method according to any one of claims 1 to 11 to be implemented, or when the instructions are executed, enable The method according to any one of claims 12 to 21 is implemented, or when the instructions are executed, the method according to any one of claims 22 to 24 is implemented.
A core network system, including AMF equipment and NWDAF network elements, is characterized by:

The NWDAF network element is used to send no coverage indication information to the AMF device; wherein the no coverage indication information is used to indicate: the no signal coverage period before the terminal device obtains the next satellite access network signal coverage;

The AMF device is used to receive the no coverage indication information;

The AMF device is also configured to perform mobility management for the terminal device according to the no coverage indication information.
A communication system, characterized in that the system is used to execute the method according to any one of claims 1-11.