CN112584441B

CN112584441B - Method and device for determining NAS connection attribute of terminal, AMF, terminal and base station

Info

Publication number: CN112584441B
Application number: CN201910943894.0A
Authority: CN
Inventors: 王胡成
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2023-03-03
Anticipated expiration: 2039-09-30
Also published as: WO2021063067A1; CN112584441A

Abstract

The embodiment of the invention discloses a method and a device for determining NAS connection attributes of a terminal, an AMF, the terminal and a base station, wherein the method at the AMF side comprises the following steps: receiving a first indication sent by a base station in the process that the UE accesses the network or is switched, or receiving a second indication sent by the UE in the process that the UE accesses the network or is switched, or receiving a third indication sent by the base station in the interface establishment process or the configuration updating process, or receiving the characteristics of transmission layer network layer association TNLA sent by the base station in the interface establishment process or the configuration updating process; and determining the NAS connection attribute of the UE according to the first indication, the second indication, the third indication or the characteristics corresponding to the TNLA associated with the NAS connection of the current UE. The NAS connection attribute of the UE is determined by the AMF according to the indication sent by the receiving base station or the UE, so that the 5GC can sense the attribute of the NAS connection between the terminal and the network, thereby setting appropriate network parameters and executing appropriate policy control.

Description

Method and device for determining NAS (network attached storage) connection attribute of terminal, AMF (advanced metering framework), terminal and base station

Technical Field

The invention relates to the technical field of communication, in particular to a method and a device for determining NAS connection attributes of a terminal, an AMF, the terminal and a base station.

Background

Currently, 3GPP (3 rd Generation Partnership Project) is studying to support satellite access in 5G (5 th Generation) systems to provide wireless coverage for larger services. In the prior art, when a terminal accesses a 5G network through a satellite link, more reasonable NAS (Non-Access-Stratum) timers and QoS (Quality of Service) parameters need to be adopted. The NAS connection is a control plane connection between the terminal and the core network, and is formed by a radio connection of an air interface and an NG interface (a base station and the core network).

Due to the high delay characteristic of satellite transmission, the 5G network in the prior art is required to know whether a satellite is a GEO type for a terminal using satellite access, and if so, adjust a timer of an NAS layer to avoid the timeout of the timer. On the other hand, due to the characteristics of high delay, low reliability and low bandwidth of satellite transmission, the prior art requires that a 5G network can know the type of a satellite or QoS restrictions of transmission for a terminal using satellite access, so as to perform policy control or QoS parameter adjustment.

However, in the prior art, if the satellite link is only used as forward transmission or return transmission, the 5GC (5 g Core network ) cannot sense the attribute of the NAS connection between the terminal and the network, and therefore cannot accurately adjust the NAS layer timer, implement policy control, and adjust the QoS parameter.

Disclosure of Invention

Because the existing method has the problems, the embodiments of the present invention provide a method, an apparatus, an AMF, a terminal and a base station for determining NAS connection attributes of a terminal.

In a first aspect, an embodiment of the present invention provides a method for determining a non-access stratum NAS connection attribute of a terminal, where the method is applied to an access and mobility management function AMF side, and the method includes:

receiving a first indication sent by a base station in the process of accessing the UE into a network or switching, and determining the NAS connection attribute of the UE according to the first indication; alternatively, the first and second liquid crystal display panels may be,

receiving a second instruction sent by the UE in the process that the UE is accessed to the network or is switched, and determining the NAS connection attribute of the UE according to the second instruction; alternatively, the first and second electrodes may be,

receiving a third instruction sent by the base station in the interface establishing process or the configuration updating process, and determining the NAS connection attribute of the terminal UE accessed through the base station according to the third instruction; alternatively, the first and second liquid crystal display panels may be,

receiving the characteristics of TNLA (transport layer network layer association) sent by a base station in an interface establishing process or a configuration updating process, and determining the NAS connection attribute of the UE according to the characteristics corresponding to the TNLA associated with the NAS connection of the current UE in the process that the UE is accessed to a network or is switched;

wherein the first indication represents a type of a satellite through which the NAS connection of the UE passes or a time delay characteristic of the NAS connection;

the second indication represents an indication transmitted by the UE through the satellite access network;

the third indication indicates that the base station provides wireless coverage only through the satellite or is connected to the core network only through the satellite, and/or the type of the satellite;

the characteristics of the TNLA indicate the type of satellite through which the TNLA passes, or the time delay characteristics of the TNLA.

In a second aspect, an embodiment of the present invention further provides a method for determining a non-access stratum NAS connection attribute of a terminal, which is applied to a terminal UE side, and includes:

receiving an indication sent by an access and mobility management function (AMF), wherein the indication is determined by the AMF according to the NAS connection attribute of the UE;

and adjusting the duration of the NAS timer according to the indication.

In a third aspect, an embodiment of the present invention further provides a method for determining a non-access stratum NAS connection attribute of a terminal, where the method is applied to a base station side and includes:

in the process that the terminal UE accesses the network or is switched, a first instruction is sent to an access and mobility management function (AMF) so that the AMF determines the NAS connection attribute of the UE according to the first instruction; alternatively, the first and second electrodes may be,

a third instruction is sent to the AMF in the interface establishing process or the configuration updating process of the base station, so that the AMF determines the non-access stratum NAS connection attribute of the UE accessed through the base station according to the third instruction; alternatively, the first and second electrodes may be,

in the process of establishing a base station interface or updating configuration, the characteristics of the TNLA are sent to the AMF, so that the AMF determines the NAS connection attribute of the UE according to the characteristics corresponding to the TNLA associated with the NAS connection of the current UE in the process of accessing the network or switching the UE;

In a fourth aspect, an embodiment of the present invention further provides an apparatus for determining a non-access stratum NAS connection attribute of a terminal, where the apparatus is applied to an access and mobility management function AMF side, and the apparatus includes:

the first receiving module is used for receiving a first indication sent by a base station in the process that the UE is accessed to a network or is switched, and determining the NAS connection attribute of the UE according to the first indication; alternatively, the first and second electrodes may be,

In a fifth aspect, an embodiment of the present invention further provides an apparatus for determining a non-access stratum NAS connection attribute of a terminal, which is applied to a terminal UE side, and includes:

a second receiving module, configured to receive an indication sent by an access and mobility management function AMF, where the indication is determined by the AMF according to a NAS connection attribute of the UE;

and adjusting the duration of the NAS timer according to the indication.

In a sixth aspect, an embodiment of the present invention further provides an apparatus for determining a non-access stratum NAS connection attribute of a terminal, where the apparatus is applied to a base station side, and the apparatus includes:

the terminal UE comprises a sending module and a switching module, wherein the sending module is used for sending a first instruction to an access and mobility management function AMF in the process that the terminal UE is accessed to a network or is switched, so that the AMF determines the NAS connection attribute of the UE according to the first instruction; alternatively, the first and second electrodes may be,

a third instruction is sent to the AMF in the interface establishing process or the configuration updating process of the base station, so that the AMF determines the non-access stratum (NAS) connection attribute of the UE accessed through the base station according to the third instruction; alternatively, the first and second liquid crystal display panels may be,

the first indication represents the type of a satellite passed by the NAS connection of the UE or the time delay characteristic of the NAS connection;

In a seventh aspect, an embodiment of the present invention further provides an access and mobility management function AMF, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the program to perform the following steps:

receiving a first indication sent by a base station in the process that the UE is accessed to a network or is switched, and determining the non-access stratum (NAS) connection attribute of the UE according to the first indication; alternatively, the first and second liquid crystal display panels may be,

receiving a second instruction sent by the UE in the process that the UE is accessed to the network or is switched, and determining the NAS connection attribute of the UE according to the second instruction; alternatively, the first and second liquid crystal display panels may be,

receiving a third instruction sent by the base station in the interface establishing process or the configuration updating process, and determining the non-access stratum (NAS) connection attribute of the terminal UE accessed by the base station according to the third instruction; alternatively, the first and second liquid crystal display panels may be,

In an eighth aspect, an embodiment of the present invention further provides a terminal UE, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the program to perform the following steps:

and adjusting the duration of the NAS timer according to the indication.

In a ninth aspect, an embodiment of the present invention further provides a base station, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the computer program to perform the following steps:

In a tenth aspect, an embodiment of the present invention further provides a non-transitory computer-readable storage medium storing a computer program, the computer program causing the computer to execute the following method:

receiving a first indication sent by a base station in the process that the UE is accessed to a network or is switched, and determining the NAS connection attribute of the UE according to the first indication; alternatively, the first and second electrodes may be,

receiving a third instruction sent by the base station in the interface establishing process or the configuration updating process, and determining the NAS connection attribute of the terminal UE accessed through the base station according to the third instruction; alternatively, the first and second electrodes may be,

receiving the characteristics of TNLA (transport layer network layer association) sent by a base station in the interface establishing process or the configuration updating process, and determining the NAS connection attribute of the UE according to the characteristics corresponding to the TNLA associated with the NAS connection of the current UE in the process that the UE is accessed into a network or switched;

In an eleventh aspect, an embodiment of the present invention further provides a non-transitory computer-readable storage medium storing a computer program, the computer program causing the computer to execute the following method:

and adjusting the duration of the NAS timer according to the indication.

In a twelfth aspect, an embodiment of the present invention further provides a non-transitory computer-readable storage medium storing a computer program, the computer program causing the computer to execute the following method:

According to the technical scheme, the embodiment of the invention determines the NAS connection attribute of the UE through the AMF according to the indication sent by the receiving base station or the UE, so that the 5GC can sense the attribute of the NAS connection between the terminal and the network, thereby setting appropriate network parameters and executing appropriate policy control.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic diagram of a deployment mode of a 5G network when a satellite provided by the prior art is used as a forward transmission;

fig. 2 is a schematic diagram illustrating a deployment manner of a 5G network when a satellite is used as backhaul in the prior art;

fig. 3 is a schematic diagram illustrating a scenario in which a base station establishes a backhaul connection with a 5GC via a satellite link according to the prior art;

fig. 4 is a schematic flowchart of a method for determining NAS connection attributes of a terminal at an AMF side according to an embodiment of the present invention;

fig. 5 is a flowchart illustrating a method for determining a NAS connection attribute of a terminal at a UE side according to an embodiment of the present invention;

fig. 6 is a flowchart illustrating a method for determining NAS connection attributes of a terminal at a base station according to an embodiment of the present invention;

fig. 7 is a flowchart illustrating an NG setup request according to an embodiment of the present invention;

fig. 8 is a flowchart illustrating a RAN configuration update according to an embodiment of the present invention;

fig. 9 is a flowchart illustrating an AMF configuration update according to an embodiment of the present invention;

fig. 10 is a flowchart illustrating initial UE message sending according to an embodiment of the present invention;

fig. 11 is a flowchart illustrating a link handover request according to an embodiment of the present invention;

fig. 12 is a flowchart illustrating an uplink NAS transmission according to an embodiment of the present invention;

fig. 13 is a flowchart illustrating a registration request according to an embodiment of the present invention;

fig. 14 is a flowchart illustrating a registration request according to another embodiment of the present invention;

fig. 15 is a schematic structural diagram of an apparatus for determining a NAS connection attribute of a terminal on an AMF side according to an embodiment of the present invention;

fig. 16 is a schematic structural diagram of an apparatus for determining a NAS connection attribute of a terminal at a UE side according to an embodiment of the present invention;

fig. 17 is a schematic structural diagram of an apparatus for determining a terminal NAS connection attribute at a base station side according to an embodiment of the present invention;

FIG. 18 is a logic block diagram of an AMF provided in accordance with an embodiment of the present invention;

fig. 19 is a logic block diagram of a UE according to an embodiment of the present invention;

fig. 20 is a logic block diagram of a base station according to an embodiment of the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

Due to the high delay characteristics of satellite transmissions, the prior art requires that the 5G network be able to know the type of satellite for terminals using satellite access. The deployment modes for the satellite access 5G network mainly include the following two modes:

deployment mode of satellite providing forward transmission or backward transmission

When the satellite is used as a fronthaul, the deployment mode of the 5G network is as shown in fig. 1, and the gbb (5G base station) is located behind the ground gateway station, and the satellite link is transparent to the protocol of the mobile communication network.

When a satellite is used as a backhaul, the 5G network is deployed in a manner shown in fig. 2, and an NG interface association is established between the gNB and the AMF (Access and Mobility Management Function) through a satellite link. In this mode, the satellite link remains transparent to the protocols of the mobile communications network.

(II) hybrid backhaul scenarios

There are a variety of scenarios where a base station establishes a backhaul connection with a 5GC over a satellite link, as shown in fig. 3, including establishing a backhaul through different types of satellites and establishing a backhaul through both terrestrial and satellite.

Fig. 4 is a flowchart illustrating a method for determining a NAS connection attribute of a terminal according to this embodiment, where the method is applied to an AMF side, and includes:

s401, receiving a first indication sent by a base station in the process that UE is accessed to a network or switched, and determining the NAS connection attribute of the UE according to the first indication; alternatively, the first and second liquid crystal display panels may be,

receiving the characteristics of TNLA (Transport Network Layer Association) sent by a base station in an interface establishing process or a configuration updating process, and determining the NAS connection attribute of the UE according to the characteristics corresponding to the TNLA associated with the NAS connection of the current UE in the process that the UE is accessed to a Network or switched.

The embodiment determines the NAS connection attribute of the UE through the AMF according to the indication sent by the receiving base station or the UE, so that the 5GC can sense the attribute of the NAS connection between the terminal and the network, thereby setting appropriate network parameters and performing appropriate policy control.

Further, the method for determining the NAS connection attribute of the terminal further includes:

and sending an indication to the UE according to the NAS connection attribute so that the UE adjusts the duration of the NAS timer.

Fig. 5 shows a flowchart of a method for determining a NAS connection attribute of a terminal according to this embodiment, where the method is applied to a terminal UE side, and includes:

s501, receiving an instruction sent by an access and mobility management function (AMF), wherein the instruction is determined by the AMF according to the NAS connection attribute of the UE;

and adjusting the duration of the NAS timer according to the indication.

Further, the NAS connection attribute is determined according to the first indication, the second indication, the third indication, or a characteristic of a transport layer network layer association, TNLA.

The first indication is an indication sent by a base station in the process that the UE is accessed to a network or is switched; indicating the type of satellite through which the NAS connection of the UE passes, or the time delay characteristic of the NAS connection;

the second indication is an indication sent by the UE in the process that the UE is accessed to the network or is switched; indicating an indication transmitted by the UE through the satellite access network;

the third indication is an indication sent by the base station in the interface establishing process or the configuration updating process; means that the base station provides radio coverage only via the satellite or is connected to the core network only via the satellite, and/or the type of said satellite;

the characteristics of the TNLA are the characteristics corresponding to the TNLA associated with the NAS connection of the UE, which are sent by the base station when the UE is accessed to a network or switched in the interface establishing process or the configuration updating process of the base station; indicates the type of satellite that the TNLA passes through, or the time delay characteristics of the TNLA.

The embodiment enables the 5GC to sense the attribute of the NAS connection between the terminal and the network by receiving the NAS connection attribute sent by the AMF, thereby setting an appropriate network parameter and performing appropriate policy control.

Fig. 6 shows a flowchart of a method for determining a terminal NAS connection attribute provided in this embodiment, where the method is applied to a base station side, and includes:

s601, in the process that the terminal UE is accessed to the network or is switched, sending a first instruction to an access and mobility management function (AMF) so that the AMF determines the NAS connection attribute of the UE according to the first instruction; alternatively, the first and second liquid crystal display panels may be,

a third instruction is sent to the AMF in the interface establishing process or the configuration updating process of the base station, so that the AMF determines the non-access stratum (NAS) connection attribute of the UE accessed through the base station according to the third instruction; alternatively, the first and second electrodes may be,

in the process of establishing a base station interface or updating configuration, the characteristics of the TNLA are sent to the AMF, so that the AMF determines the NAS connection attribute of the UE according to the characteristics corresponding to the TNLA associated with the NAS connection of the current UE in the process of accessing the network or switching the UE.

The present embodiment enables the 5GC to perceive the attributes of the NAS connection between the terminal and the network by transmitting an indication to the AMF to enable the AMF to determine the NAS connection attributes of the UE, thereby setting appropriate network parameters and performing appropriate policy control.

and acquiring information corresponding to the characteristics of the first indication, the third indication or the TNLA.

Specifically, in the process of interaction between the AMF and the base station and between the AMF and the UE:

if the base station is connected to only satellites and only one type of satellite is connected as a fronthaul or backhaul at the same time, the base station may report to the AMF the type of satellite it is connected to or the link attributes of the fronthaul or backhaul, such as latency, bandwidth, etc., when the base station chooses to establish/modify NG interface association with the AMF.

If the base station can be connected with multiple satellites or can be connected with the satellites and can also use the ground network as forwarding, the base station needs to report the type of the satellite currently connected with the UE or the attributes of air interface connection, such as time delay, bandwidth and the like, to the AMF when the UE accesses the network.

If the base station can be connected to multiple satellites or can be connected to a satellite and can use a terrestrial network as backhaul, after the base station establishes an NG interface association with the AMF, the base station needs to report to the AMF the types of satellites passed by each transport layer connection or the link attributes of the fronthaul, such as time delay, bandwidth, and the like.

And after the AMF acquires the attribute of the forward transmission link or the return transmission link, determining the value of the NAS timer.

And the AMF informs the SMF of the attribute of the forward transmission link or the return transmission link, so that the SMF determines the value of the NAS timer, executes policy control, qoS adjustment and the like.

The following detailed description is made in accordance with the procedures of the examples:

example 1: notifying NAS connection Attribute for UE during NG setup

Fig. 7 shows a flow diagram of NG establishment request provided by the present embodiment, when the gNB only serves satellite fronthaul or only uses satellite as backhaul, and only connects to one type of satellite at the same time, the gNB may report to the AMF the type of satellite it connects to, or the base station attributes (including the attributes of wireless coverage or backhaul connection, such as time delay, etc.) when establishing NG association with the AMF.

When the UE accesses the 5G network through the gNB, the AMF determines the attributes of the NAS connection of the UE according to the type of the satellite or the base station attributes received before.

When the UE creates a PDU session, the AMF provides the SMF with the type of satellite or the NAS connection attribute of the UE, so that the SMF performs policy control, determines QoS parameters, and the like.

Example 2: notifying NAS connection attribute of UE in RAN configuration update process

Fig. 8 shows a flow diagram of the RAN Configuration Update provided by the present embodiment, where the gNB only serves a satellite forward transmission or only uses a satellite as a backhaul, and only connects one type of satellite at the same time, and if the connection between the gNB and the satellite changes, for example, a low-orbit satellite changes to a high-orbit satellite, the gNB may initiate a RAN Configuration Update procedure, report the type of the satellite connected to the gNB to the AMF, or a base station attribute (including an attribute of the wireless coverage or backhaul connection, such as a time delay).

And corresponding to the accessed UE, the AMF determines the NAS connection attribute of the UE according to the type of the new satellite or the attribute of the forward transmission or the backward transmission connection. The AMF may determine that the UE side NAS timer duration needs to be adjusted, and provide the type of satellite or the NAS connection attribute of the UE to the SMF serving the UE, so that the SMF can adjust a control policy, a QoS parameter, and the like.

Example 3: obtaining NAS connection attribute of UE in AMF configuration update process

Fig. 9 is a flowchart illustrating an embodiment of an AMF configuration update process, where a base station gbb and an AMF may establish multiple TNLAs if the base station may be connected to multiple satellites or both the satellites and the AMF may use a terrestrial network as backhaul. At this time, for TNLA using a satellite link, the gNB should report the type or link attribute of the satellite corresponding to its satellite link, such as time delay, bandwidth, and the like.

When the UE accesses the network or is switched, if the NAS connection is established on the TNLA using the satellite link, the AMF determines the NAS connection attribute of the UE according to the stored association relationship between the TNLA and the type/link attribute of the satellite.

Further, the AMF determines that the value of the NAS timer on the UE side needs to be adjusted, and provides the type of a satellite or the NAS connection attribute of the UE for the SMF serving the UE, so that the SMF can adjust a control strategy, qoS parameters and the like.

Example 4: determining NAS connection attributes for a UE in an Initial UE procedure

Fig. 10 is a flowchart illustrating initial UE message sending provided in this embodiment, when the gNB supports multiple types of forwarding (including a satellite link as forwarding), once the UE accesses the 5G network through the gNB, the gNB needs to report the forwarding currently used by the UE to the AMF, so that the AMF and the SMF can perform appropriate parameter setting.

After the UE accesses the gNB through the satellite link, the gNB needs to indicate the current forwarding information of the UE in the Initial UE message, which may be a type of the satellite or a link attribute, such as time delay. Thereby enabling the AMF to determine the NAS connection properties of the UE.

Example 5: determining NAS connection attribute of UE in Path Switch process

Fig. 11 is a flowchart illustrating a link handover Request according to an embodiment, when a UE is handed over, if a target gNB supports multiple forwarding (including a satellite link as forwarding) and the UE switches to the satellite forwarding, the new gNB needs to report forwarding information used by the current UE to the AMF in a Path Switch Request message; may be the type of satellite or a link attribute such as time delay, etc. Thereby enabling the AMF to determine the NAS connection attribute of the UE.

Example 6: determining NAS connection attributes for a UE in a UL NAS Transport procedure

Fig. 12 is a flow diagram illustrating uplink NAS transmission according to this embodiment, where a UE may perform an intra-base station handover, and when the gNB supports multiple types of fronthaul (including a satellite link as fronthaul), the intra-base station handover may cause the UE to change from one type of fronthaul to another type of fronthaul, for example, switch from low-orbit satellite coverage to high-orbit satellite coverage. In this case, in order to let the core network know that the forwarding of the service terminal changes, the UE should initiate a registration area update process, which has a certain requirement on network deployment, and mainly includes:

different TAI addressing spaces are used for ground cellular coverage and satellite coverage of different orbits;

when the AMF allocates the registration area to the UE, only TAs in the same coverage area can be divided into the registration area of the UE.

In the process of updating the registration area, the gNB shall notify the 5G core network of the change of the forwarding information in the UL NAS Transport message carrying the registration update request, which may be a type of a satellite or a link attribute, such as time delay. Thereby enabling the AMF to determine the NAS connection properties of the UE.

Example 7: determining NAS connection attributes for a UE during a UE registration request

Fig. 13 is a schematic flowchart illustrating a flow of a registration request provided in this embodiment, where a base station provides radio coverage through a satellite, a UE accessing a network through the base station may indicate, in the registration request, to a core network that the UE accesses the base station through the satellite and a type of the satellite, so that the network can determine that a NAS connection of the UE passes through a satellite link, and thus determine an attribute of the NAS connection, such as high latency.

Example 8: determining NAS connection attributes of a UE during initiation of a registration request by the UE

Fig. 14 is a flowchart illustrating a registration request provided in this embodiment, when the UE initiates a registration request procedure to access the network, if the backhaul connection used by the base station passes through a satellite, that is, the TNLA associated with the UE passes through a satellite, especially an overhead satellite, then there is a high delay in the transmission of the message on the NG interface. However, the UE cannot perceive the delay characteristic of the TNLA, and thus the timer duration of its NAS layer may be improperly set. At this point, the AMF should indicate to the UE in the first message to the UE the characteristic of high transmission delay of the current NAS connection. Thereby enabling the UE to adjust the duration of its partial NAS timer according to the indication. The first message sent by the AMF to the UE may be a Registration Accept message, a Registration Request message, an Identity Request message, or a message related to authentication.

The embodiment enables the network to accurately know the connection characteristics of the current control plane of the UE, thereby setting appropriate network parameters and executing appropriate policy control.

Fig. 15 shows a schematic structural diagram of an apparatus for determining a NAS connection attribute of a terminal according to this embodiment, which is applied to an access and mobility management function AMF side, and includes:

a first receiving module 1501, configured to receive a first instruction sent by a base station in a process that a UE accesses a network or is handed over, and determine an NAS connection attribute of the UE according to the first instruction; alternatively, the first and second electrodes may be,

receiving a third instruction sent by the base station in the interface establishment process or the configuration updating process, and determining the NAS connection attribute of the terminal UE accessed through the base station according to the third instruction; alternatively, the first and second electrodes may be,

The apparatus for determining a non-access stratum connection attribute of a terminal according to this embodiment may be configured to execute the corresponding method embodiments, and the principle and technical effect are similar, which are not described herein again.

Fig. 16 shows a schematic structural diagram of an apparatus for determining a NAS connection attribute of a terminal according to this embodiment, which is applied to a terminal UE side, and includes:

a second receiving module 1601, configured to receive an indication sent by an access and mobility management function AMF, where the indication is determined by the AMF according to a NAS connection attribute of the UE;

and adjusting the duration of the NAS timer according to the indication.

The apparatus for determining the non-access stratum connection attribute of the terminal according to this embodiment may be configured to execute the corresponding method embodiment, and the principle and technical effect are similar, which are not described herein again.

Fig. 17 is a schematic structural diagram of an apparatus for determining a NAS connection attribute of a terminal according to this embodiment, which is applied to a base station side and includes:

a sending module 1701, configured to send a first instruction to an access and mobility management function AMF when a terminal UE accesses a network or performs handover, so that the AMF determines a NAS connection attribute of the UE according to the first instruction; alternatively, the first and second electrodes may be,

a third instruction is sent to the AMF in the interface establishing process or the configuration updating process of the base station, so that the AMF determines the non-access stratum NAS connection attribute of the UE accessed through the base station according to the third instruction; alternatively, the first and second liquid crystal display panels may be,

Referring to fig. 18, the AMF includes: a processor (processor) 1801, a memory (memory) 1802, and a bus 1803;

wherein the content of the first and second substances,

the processor 1801 and the memory 1802 complete communication with each other through the bus 1803;

the processor 1801 is configured to invoke program instructions in the memory 1802 to perform the following method:

receiving a first indication sent by a base station in the process that the UE accesses the network or is switched, and determining the non-access stratum (NAS) connection attribute of the UE according to the first indication; alternatively, the first and second electrodes may be,

receiving a third instruction sent by the base station in the interface establishment process or the configuration updating process, and determining the non-access stratum (NAS) connection attribute of the terminal UE accessed by the base station according to the third instruction; alternatively, the first and second electrodes may be,

Further, the processor executes the program to perform the following steps:

and indicating the NAS connection attribute to the UE so that the UE adjusts the duration of the NAS timer according to the NAS connection attribute.

The AMF described in this embodiment may be used to implement the corresponding method embodiments described above, and the principle and technical effect are similar, which are not described herein again.

Referring to fig. 19, the UE includes: a processor (processor) 1901, a memory (memory) 1902, and a bus 1903;

wherein, the first and the second end of the pipe are connected with each other,

the processor 1901 and the memory 1902 communicate with each other via the bus 1903;

the processor 1901 is configured to call program instructions in the memory 1902 to perform the following method:

and adjusting the duration of the NAS timer according to the indication.

Further, the NAS connection attribute is determined according to the first indication, the second indication, the third indication, or a characteristic of a transport layer network layer association, TNLA;

the second indication is an indication sent by the UE in the process that the UE is accessed to the network or is switched; an indication representing a transmission by the UE through the satellite access network;

the third indication is an indication sent by the base station in the interface establishing process or the configuration updating process; means that the base station provides wireless coverage only through the satellite or is connected to the core network only through the satellite, and/or the type of the satellite;

the characteristics of the TNLA are the characteristics corresponding to the TNLA associated with the NAS connection of the UE, which are sent by the base station when the UE is accessed to a network or switched in the interface establishing process or the configuration updating process of the base station; indicates the type of satellite that the TNLA passes through, or the delay characteristics of the TNLA.

The UE described in this embodiment may be configured to execute the corresponding method embodiments, and the principle and technical effect are similar, which are not described herein again.

Referring to fig. 20, the base station includes: a processor (processor) 2001, a memory (memory) 2002, and a bus 2003;

the processor 2001 and the memory 2002 communicate with each other via the bus 2003;

the processor 2001 is used to call program instructions in the memory 2002 to perform the following methods:

in the process that the terminal UE accesses the network or is switched, a first instruction is sent to an access and mobility management function (AMF) so that the AMF determines the NAS connection attribute of the UE according to the first instruction; alternatively, the first and second liquid crystal display panels may be,

Further, the processor executes the program and further executes the following steps:

The base station described in this embodiment may be configured to execute the corresponding method embodiments, and the principle and technical effect are similar, which are not described herein again.

The present embodiments disclose a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, enable the computer to perform the methods provided by the above-described method embodiments.

The present embodiments provide a non-transitory computer-readable storage medium storing computer instructions that cause a computer to perform the method of:

receiving a second instruction sent by the UE in the process of accessing the network or switching the UE, and determining the NAS connection attribute of the UE according to the second instruction; alternatively, the first and second electrodes may be,

The present embodiments provide a non-transitory computer-readable storage medium storing computer instructions that cause the computer to perform a method of:

and adjusting the duration of the NAS timer according to the indication.

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. Based on the understanding, the above technical solutions substantially or otherwise contributing to the prior art may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the various embodiments or some parts of the embodiments.

It should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A method for determining the non-access stratum (NAS) connection attribute of a terminal is applied to an access and mobility management function (AMF) side, and is characterized by comprising the following steps:

2. The method for determining the NAS connection attribute of the terminal according to claim 1, wherein the method for determining the NAS connection attribute of the terminal further comprises:

3. A method for determining the non-access stratum (NAS) connection attribute of a terminal is applied to a terminal UE side, and is characterized by comprising the following steps:

adjusting the duration of the NAS timer according to the indication;

the NAS connection attribute is determined according to the first indication, the second indication, the third indication or the characteristics of a transport layer network layer (TNLA) association;

the first indication is an indication sent by a base station in the process that the UE is accessed to a network or is switched; indicating the type of satellite through which the NAS connection of the UE passes, or the latency characteristic of the NAS connection;

the second indication is an indication sent by the UE when the UE accesses the network or is switched; indicating an indication transmitted by the UE through the satellite access network;

the characteristics of the TNLA are the characteristics corresponding to the TNLA associated with the NAS connection of the UE sent by the base station when the UE is accessed to a network or switched in the interface establishment process or the configuration updating process of the base station; indicates the type of satellite that the TNLA passes through, or the delay characteristics of the TNLA.

4. A method for determining the non-access stratum (NAS) connection attribute of a terminal is applied to a base station side, and is characterized by comprising the following steps:

5. The method for determining the NAS connection attribute of the terminal according to claim 4, wherein the method for determining the NAS connection attribute of the terminal further comprises:

6. An apparatus for determining a non-access stratum (NAS) connection attribute of a terminal, applied to an access and mobility management function (AMF) side, includes:

the first receiving module is used for receiving a first indication sent by a base station in the process that the UE is accessed to a network or is switched, and determining the NAS connection attribute of the UE according to the first indication; alternatively, the first and second liquid crystal display panels may be,

7. An apparatus for determining a non-access stratum (NAS) connection attribute of a terminal, which is applied to a terminal (UE) side, is characterized by comprising:

a second receiving module, configured to receive an indication sent by an access and mobility management function AMF, where the indication is determined by the AMF according to an NAS connection attribute of the UE;

adjusting the duration of the NAS timer according to the indication;

the NAS connection attribute is determined according to the first indication, the second indication, the third indication or the characteristics of a transport layer network layer (TNLA) correlation;

8. An apparatus for determining non-access stratum (NAS) connection attributes of a terminal, applied to a base station side, is characterized by comprising:

9. An access and mobility management function, AMF, comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor executes the program to perform the steps of:

receiving a third instruction sent by the base station in the interface establishment process or the configuration updating process, and determining the non-access stratum (NAS) connection attribute of the terminal UE accessed by the base station according to the third instruction; alternatively, the first and second liquid crystal display panels may be,

10. The AMF of claim 9, wherein the processor, when executing the program, further performs the steps of:

11. A terminal UE comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor executes the program to perform the steps of:

adjusting the duration of the NAS timer according to the indication;

the characteristics of the TNLA are the characteristics corresponding to the TNLA associated with the NAS connection of the UE sent by the base station when the UE is accessed to a network or switched in the interface establishment process or the configuration updating process of the base station; indicates the type of satellite that the TNLA passes through, or the time delay characteristics of the TNLA.

12. A base station comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor executes the program to perform the steps of:

13. The base station of claim 12, wherein the processor, when executing the program, further performs the steps of:

14. A non-transitory computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the method of determining NAS connection properties of a terminal according to claim 1 or 2.

15. A non-transitory computer-readable storage medium, on which a computer program is stored, which computer program, when being executed by a processor, is adapted to carry out the method of determining NAS connection attributes of a terminal according to claim 3.

16. A non-transitory computer-readable storage medium, on which a computer program is stored, which computer program, when being executed by a processor, is adapted to carry out the method of determining NAS connection attributes of a terminal according to claim 4 or 5.