CN109076489B

CN109076489B - Attachment method, paging method, device and equipment

Info

Publication number: CN109076489B
Application number: CN201680084666.7A
Authority: CN
Inventors: 彭文杰; 张宏卓; 罗海燕; 石小丽
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2016-04-25
Filing date: 2016-04-25
Publication date: 2020-08-14
Anticipated expiration: 2036-04-25
Also published as: CN109076489A; WO2017185199A1

Abstract

The invention provides a paging method, an attachment method and equipment, wherein the paging method comprises the following steps: the core network equipment sends a paging message to the UE to the base station; the paging message carries an MAI list of NR networks configured for the UE by the core network equipment; wherein the MAI list includes at least one MAI for identifying a moving area of the NR network, the moving area including at least one NR cell. After the MAI list is configured by the core network equipment, the base station can page the corresponding UE according to the MAI list configured by the core network equipment for the UE, so that the paging of the NR network to the UE with the NR network capability is realized.

Description

Attachment method, paging method, device and equipment

Technical Field

The present invention relates to communications technologies, and in particular, to an attachment method, a paging method, an apparatus, and a device.

Background

Mobile communication has been deeply changing people's lives, but the pursuit of higher performance mobile communication has never been stopped. In order to further improve the mobile communication performance, when the Long Term Evolution (LTE) technology is becoming mature, a new network is deployed in the LTE architecture, for example: in order to meet the requirement of rapid deployment, a first stage may only deploy a transmission point of an NR network, fig. 1 is a schematic diagram of an architecture of an NR network based on non-independent deployment of an LTE system, as shown in fig. 1, only the transmission point is deployed for the NR network without a core network device, an interface exists between the transmission point of the NR network and an evolved Node B (eNB) of the LTE, and the transmission point communicates with the core network device of the LTE through the eNB.

In the LTE system, each LTE cell corresponds to a Tracking Area Identifier (TAI), and each TAI may correspond to multiple LTE cells. User equipment (user equipment, abbreviated as UE) initiates an attach procedure after being powered on, and after receiving an attach request, core network equipment configures a TAI list for the UE, so that the core network pages the UE. Under the non-independently deployed NR network architecture, the NR cell may reuse the TAI of the LTE cell, and since there is no direct interface between the core network device and the transmission point of the NR network, when the core network device pages the UE, the core network device may send a paging message to the eNB, where the paging message includes a TAI list configured by the core network device for the UE, and the eNB may determine to page the UE in the corresponding cell according to the TAI list.

However, there is currently no suitable paging method for UEs capable of communicating in the NR network.

Disclosure of Invention

Embodiments of the present invention provide an attachment method, a paging method, an apparatus, and a device, which are used to solve the problem that no suitable paging method exists for a UE capable of communicating using an NR network.

A first aspect of the present invention provides a paging method, where the scheme is applied in a core network device, and includes:

the core network equipment sends a paging message to the UE to the base station; the paging message carries an MAI list of NR networks configured for the UE by the core network equipment;

wherein the MAI list includes at least one MAI for identifying a moving area of the NR network, the moving area including at least one NR cell.

Optionally, the paging message further carries a TAI list of the UE.

In the scheme, when the network side has the downlink service of the UE to send, the core network device carries the TAI list of the LTE network and the MAI list of the NR network configured for the UE in advance in the paging message sent to the base station, or only carries the MAI list. The TAI is an identifier of a tracking area in the LTE system, each LTE cell corresponds to one TAI, and one TAI may include a plurality of LTE cells, where the TAI generally includes a lower public land mobile network identifier and a tracking area code. In the NR network in the present solution, the present solution provides a concept of a moving area, which is similar to a tracking area in LTE, and the moving area is also composed of a plurality of NR cells, and is used to locate idle UEs, and when the moving area includes a plurality of NR cells, the idle UEs do not need to interact with a core network, that is, do not need to trigger updating of the cells, when moving within the moving area. The MAI may be a public land mobile network identifier and a Mobile Area (MA) code, or may be in other forms.

In this scheme, the core network device refers to a core network device in an LTE network, for example: mobility Management Entity (MME for short).

After the core network configures the MAI list for the UE, when paging the UE, the base station may page the corresponding UE according to the MAI list configured for the UE by the core network device, so as to implement paging of the NR network to the UE having the NR network capability. The paging of the NR network can be carried out only for the UE, the paging of the LTE network is not carried out, and the paging load is reduced.

In a specific implementation manner, the core network device obtains NR capability indication information of the UE; the NR capability indication information is used for indicating that the UE supports an NR network;

and the core network equipment configures the MAI list for the UE according to the NR capability indication information.

Optionally, the core network device may also configure an MAI list for the UE according to the NR capability indication information, and configure a TAI list of an LTE network for the UE.

Before paging a UE, a core network device generally needs to configure an MAI list for the UE according to a capability of the UE supporting a network, that is, the core network device needs to acquire a capability of the UE in advance. The configuration of the MAI list by the core network device according to the capability indication information of the UE may be performed when the UE is attached for the first time, or may be performed when the MAI list is updated after the TAI list is configured and the indication information that the UE supports the NR network is obtained, which is not limited in this respect.

On the basis of the above scheme, the acquiring, by the core network device, the NR capability indication of the UE includes:

the core network equipment receives an attachment request message sent by the base station; the attach request message includes NR capability indication information of the UE.

Alternatively, the first and second electrodes may be,

and the core network equipment receives the NR capability indication information of the UE, which is sent by the base station.

The meaning of the scheme is that the core network equipment obtains the NR capability indication information of the UE in at least two modes, wherein one mode is that in the UE attachment process, the core network equipment receives the NR capability indication information of the UE carried by the attachment message sent by the base station; and the other is that after the TAI list of the LTE network configured by the core network device, the UE acquires the NR capability indication information of the UE and reports the NR capability indication information to the core network device in the communication process.

Further, after the core network device configures an MAI list for the UE according to the capability indication information of the UE carried in the attach message, or after the TAI list and the MAI list, the core network device sends an attach accept message to the base station; the attach accept message carries the MAI list configured for the UE, or carries the TAI list and the MAI list.

What this means is that the core network device needs to inform the UE of the TAI list and the MAI list through the base station through the attach accept message so that the UE can be paged or perform data interaction on the network.

In another implementation manner of the first aspect, the core network device receives NR capability indication information of the UE sent by the base station;

the core network equipment sends an update message to the base station; the update message includes: and the core network equipment configures an MAI list or an MAI list and a TAI list for the UE according to the NR capability indication information of the UE.

In the meaning of the scheme, if the UE is attached, only a TAI list of an LTE network is configured, in a subsequent communication process, the core network device determines that the UE supports an NR network through NR capability indication information of the UE reported by the base station, the core network device needs to configure an MAI list for the UE, and at this time, the core network device sends an update message to the base station instead of an attachment acceptance message, where the update message is used to update the MAI list, and the optional core network device may also perform configuration update on the TAI list, and after finding that the UE supports an NR network, the core network device configures the MAI list for the UE, so as to implement paging of the NR transmission point to the UE.

On the basis of any of the above schemes, before the core network device sends a paging message to the UE to the base station, the method further includes: the core network equipment receives an S1 interface establishment request message sent by the base station; the S1 interface establishment request message includes: the cell identifiers of all NR cells managed by a transmission point of the NR network having an interface with the base station and the MAI corresponding to each NR cell may be in the form of all MAIs at the transmission point of the NR network and the NR cell identifier corresponding to each MAI;

and the core network equipment returns an S1 interface establishment response message to the base station.

The meaning is that before paging to the UE, an S1 interface needs to be established between the core network device and the base station, and the specific way is: the core network equipment receives an S1 interface establishment request message sent by the base station; the S1 interface establishment request message includes cell identifiers for managing all NR cells and MAIs corresponding to each NR cell at a transmission point of an NR network having an interface with the base station, and may be in the form of all MAIs and NR cell identifiers corresponding to each MAI at the transmission point of the NR network; and the core network equipment returns an S1 interface establishment response message to the base station.

The S1 interface is the interface between the base station packet core networks of the LTE network. The LTE system is divided into a radio access network and a core network. When the S1 interface is established, based on the existing establishment procedure of the S1 interface, the base station further needs to report the MAI of the cell managed by the transmission point of all NR networks having interfaces with the base station to the core network device, so that the core network device can configure the MAI list of the UE.

The second aspect of the present invention provides a paging method, applied to a base station side, including:

a base station receives a paging message sent by core network equipment; the paging message carries an MAI list of the NR network of the UE; wherein the MAI list includes at least one MAI for identifying a moving area of the NR network, the moving area including at least one NR cell.

And the base station pages the UE according to the paging message.

Optionally, the paging message further carries a TAI list of the UE.

Optionally, the paging, performed by the base station, of the UE according to the paging message includes:

and the base station forwards the paging message to a transmission point of a corresponding NR network according to the MAI list.

In the scheme, when a downlink service of the UE exists on the network side, the paging message received by the base station from the core network device may include only an MAI list, or may include both a TAI list and an MAI list, indicating a range in which the UE may exist, and when the base station determines that the MAI list includes its MAI, the base station forwards the paging message to the corresponding NR network transmission point, where the paging message forwarded to the NR network transmission point is used to indicate the NR network transmission point to transmit the UE on the air interface, and if the paging message sent by the core network device only carries the MAI list, the paging message forwarded by the base station to the NR network transmission point may include the MAI list or may not include the MAI list; if the paging message sent by the core network device carries the MAI list and the TAI list, the paging message forwarded by the base station to the transmission point of the NR network may include the MAI list and the TAI list, or only include the MAI list, or may not include the MAI list and the TAI list.

In this scheme, there is an interface between a base station and a transmission point of the NR network, i.e. when the transmission point is set, an interface is established between it and the base station.

The method ensures that the UE supporting the NR network can be paged, and effectively improves the paging success rate of the UE supporting the NR network.

Specifically, before receiving the paging message sent by the core network device, the method further includes:

the base station sends an attachment request message to the core network equipment; the attach request message includes NR capability indication information of the UE; the NR capability indication information is used for indicating that the UE supports an NR network;

the base station receives an attachment acceptance message returned by the core network equipment; the attach accept message carries an MAI list configured for the UE by the core network device according to the NR capability indication information of the UE, or carries a TAI list and the MAI list configured for the UE by the core network device.

The meaning of the scheme is that before paging the UE, the base station needs to send an attach request message to the core network device so that the UE can attach to the core network, the attach message sent by the base station to the core network device needs to carry NR capability indication information of the UE, and the manner in which the base station obtains the NR capability indication information of the UE at least includes the following two manners:

the first mode is as follows: before the base station sends the attach request message to the core network device, the method further includes: the base station receives an attachment request message sent by the UE, wherein the attachment request message comprises an NR capability indication of the UE.

The second way is: before a base station sends an attachment request message to core network equipment, the base station receives the attachment request message sent by a transmission point of an NR network; the base station adds NR capability indication information of the UE in the attach request message.

It can be understood that, in the attach process of the UE, the UE may directly send an attach request message to the base station, or the UE sends an attach request message to the base station through a transmission point of the NR network to initiate attach, and if the UE directly initiates attach on the base station, the UE may directly carry NR capability indication information in the attach request message; if the UE attaches to the NR network at the transmission point, the base station may determine that the UE supports NR network communication, and the base station needs to add NR capability indication information of the UE in the attach request message and then send the NR capability indication information to the core network device. The NR capability indication information is used to inform the core network device that the attach request message is from an air interface of the NR network, that is, the UE has the capability of NR network communication.

Optionally, the method further includes:

the base station sends a capability query message to the UE;

the base station receives NR capability indication information fed back by the UE; the NR capability indication information is used for indicating that the UE supports an NR network;

the base station sends the NR capability indication information of the UE to the core network equipment;

the base station receives an update message returned by the core network equipment; and the update message carries the MAI list or the MAI list and the TAI list for the UE by the core network equipment according to the NR capability indication information of the UE.

The method is different from the above solutions, in the process, when the base station sends the attach request message to the core network device, the base station does not carry the NR capability indication information of the UE, but after the core network device configures the TAI list for the UE, the base station obtains the NR network supported by the UE by querying the UE, and then informs the core network that the UE supports the NR network, so that the core network configures the MAI list for the UE, and then sends the update message to the UE through the base station. In the above process, the core network device may reconfigure the MAI list and may reconfigure the TAI list while configuring the MAI list, that is, the MAI list and the TAI list may be updated simultaneously, thereby effectively reducing the signaling load of the core network device.

Optionally, before the base station receives the paging message sent by the core network device, the method further includes:

the base station acquires cell identifiers of all NR cells managed by a transmission point of an NR network with an interface between the base station and MAIs corresponding to each NR cell, and the cell identifiers can be in the form of all MAIs and NR cell identifiers corresponding to each MAI at the transmission point of the NR network;

the base station sends an S1 interface establishment request message to the core network equipment; the S1 interface establishment request message includes cell identifiers of all NR cells managed by a transmission point of the NR network having an interface with the base station and MAIs corresponding to each NR cell, and may be in the form of all MAIs at the transmission point of the NR network and NR cell identifiers corresponding to each MAI;

and the base station receives an S1 interface establishment response message returned by the core network equipment.

In any of the above solutions, the base station needs to establish an S1 interface with the core network device in advance, and carry the MAI of the NR cell managed by the transmission point of the NR network in the interface establishment request, so that the core network configures an MAI list for the UE.

A third aspect of the present invention provides a paging method, where the scheme is applied to a transmission point side of an NR network, and specifically includes:

a transmission point of the NR network receives a paging message sent by a base station; the paging message is used for indicating the transmission point of the NR network to page User Equipment (UE);

and the transmission point of the NR network pages the UE on an air interface.

The meaning is that the transmission point pages the UE on an air interface according to the indication of the base station, so that in the NR network which is not independently deployed, the paging of the UE can be realized by configuring an MAI list through core network equipment.

Optionally, the method further includes: a transmission point of the NR network receives an attachment request message sent by the UE; the transmission point of the NR network forwards the attach request message to the base station.

The transmission point of the NR network may also forward the attach request message to the base station according to the attach request sent by the UE, so that the base station forwards the attach request message to the core network device, thereby implementing the attachment of the UE to the core network device.

A fourth aspect of the present invention provides an attachment method, which is applied to a core network device side, and includes:

the core network equipment receives an attachment request message sent by a base station; the attach request message comprises new radio access technology (NR) capability indication information of the UE, and the NR capability indication information is used for indicating that the UE supports an NR network;

the core network equipment configures an MAI list of a Mobile Area Identifier (MAI) of an NR network for the UE according to the NR capability indication information of the UE;

the core network equipment sends an attachment acceptance message to a base station; the attach accept message carries the MAI list;

Optionally, the core network device may further configure a TAI list for the UE; the attach accept message also carries the TAI list.

The scheme provides an attachment process of a UE with NR network communication capability to a core network device, wherein the core network device receives an attachment request message sent by a base station of an LTE network, wherein the attachment request message comprises NR capability indication information used for indicating that the UE has NE network communication, and then configures an MAI list, or an MAI list and a TAI list for the UE, similar to a tracking area in LTE, the mobile area also comprises a plurality of NR cells and is used for positioning idle UE, and when the mobile area comprises a plurality of NR cells, the idle UE does not need to interact with a core network when moving in the mobile area, namely, does not need to trigger updating of the cells. After receiving the attach accept message sent by the core network device, the UE with NR network communication capability can be paged successfully when there is downlink traffic on the network side.

Optionally, before the core network device obtains the new NR capability indication of the UE, the method further includes:

the core network equipment receives an S1 interface establishment request message sent by the base station; the S1 interface establishment request message includes cell identifiers of all NR cells managed by a transmission point of the NR network having an interface with the base station and MAIs corresponding to each NR cell, and may be in the form of all MAIs at the transmission point of the NR network and NR cell identifiers corresponding to each MAI;

and the core network equipment establishes an S1 interface with the base station according to the S1 interface establishment request message, and returns an S1 interface establishment response message to the base station.

The two schemes are both directed at the process of initial attachment of the UE, in the process of initial attachment of the UE, the core network device receives the capability indication information of the NR carried in the attachment request message by the base station, and the core network device configures the MAI list or the TAI list and the MAI list for the UE according to the capability indication information of the NR, that is, the configuration of the LTE network and the NR network is completed simultaneously, so that signaling overhead is effectively saved, and the UE can be successfully paged when the UE has a downlink service.

A fifth aspect of the present invention provides an attachment method applied to a base station side, including:

a base station sends an attachment request message to core network equipment;

the attach request message includes NR capability indication information of the UE; the NR capability indication is to indicate that the UE supports an NR network;

the base station receives an attachment acceptance message returned by the core network equipment; the attach accept message carries an MAI list configured for the UE by the core network equipment according to the capability information of the UE; wherein the list of MAIs comprises at least one MAI, the MAI identifying a mobility area of the NR network, the mobility area comprising cells of the at least one NR network;

and the base station sends the attachment acceptance message to the UE.

Optionally, the attach accept message further carries a TAI list configured by the core network device for the UE.

In this scheme, when each MAI corresponds to multiple NR cells, the idle UE in the mobile area does not need to interact with the core network device when moving between the NR cells.

Optionally, before the base station sends the attach request message to the core network device, the method further includes:

the base station receives an attachment request message sent by the UE; the attach request message includes NR capability indication information of the UE;

alternatively, the first and second electrodes may be,

and the base station receives an attachment request message sent by a transmission point of the NR network and adds the NR capability indication information of the UE in the attachment request message.

The meaning of the scheme is that the base station obtains the NR capability indication information of the UE in at least two modes, wherein one mode is that the base station receives the NR capability indication information of the UE carried by the attachment message sent by the UE in the UE attachment process; the other is that the base station receives an attach request message sent by a transmission point of the NR network, that is, it can be determined that the UE supports the NR network, and the base station adds NR capability indication information of the UE in the attach request message and then reports the NR capability indication information to the core network device.

A sixth aspect of the present invention provides an attaching method, which is also applied to a base station side, and specifically includes:

a base station sends NR capability indication information of UE to core network equipment; the NR capability indication information is used for indicating that the UE supports an NR network;

the base station receives an update message returned by the core network equipment; the update message carries a Mobile Area Identity (MAI) list of an NR network configured for the UE by the core network equipment according to the NR capability indication information of the UE; wherein the MAI list includes at least one MAI for identifying a moving area of the NR network, the moving area including at least one NR cell;

and the base station sends the updating message to the UE.

Optionally, the update message further includes a tracking area identity TAI list of a long term evolution LTE network configured by the core network device for the UE.

In this scheme, different from the above attachment method, after obtaining the NR capability of the UE, the base station notifies the core network device of the NR capability of the UE, and after obtaining the NR capability of the UE, the core network device configures an MAI list for the UE, where a message sent by the core network device is an update message to update the MAI list and/or the TAI list of the UE, so that the UE with NR network communication capability can be paged over an air interface of a transmission point of the NR network.

A seventh aspect of the present invention provides an attach method, applied to a UE side, including:

UE sends an attachment request message to a base station; the attach request message includes NR capability indication information of the UE; the NR capability indication is to indicate that the UE supports an NR network;

and the UE receives an attachment acceptance message sent by the base station.

The scheme provides an attachment process initiated by UE actively, which is different from the prior art that a capability indication is added in an attachment request message to indicate that the UE supports an NR network, so that core network equipment can configure an MAI list for the UE to realize paging of the UE on a transmission point of the NR network.

An eighth aspect of the present invention provides a paging device, including:

a sending module, configured to send a paging message to a base station for a UE; the paging message carries an MAI list of NR networks configured for the UE by a processing module;

Optionally, the paging message further carries a TAI list configured by the processing module for the UE.

The paging device may be implemented by software, or may be implemented as core network equipment by hardware equipment, which is not limited to this, and the paging device is specifically configured to implement the technical solution of each paging method provided in the first aspect, and the implementation principle thereof is similar, and please refer to the first aspect for specific implementation manner and details.

A ninth aspect of the present invention provides a paging device, comprising:

a receiving module, configured to receive a paging message sent by a core network device; the paging message carries an MAI list of the NR network of the UE; wherein the MAI list includes at least one MAI for identifying a moving area of the NR network, the moving area including at least one NR cell.

And the processing module is used for paging the UE according to the paging message.

Optionally, the paging message further carries a TAI list of the UE.

The paging device may be implemented by software, or may be implemented as a base station by hardware devices, without limitation, and the paging device is specifically configured to implement the technical solution of each paging method provided in the second aspect, and the implementation principle thereof is similar, and please refer to the first aspect for specific implementation manner and details.

A ninth aspect of the present invention provides an attaching device, comprising:

a receiving module, configured to receive an attach request message sent by a base station; the attach request message comprises NR capability indication information of the UE, and the NR capability indication information is used for indicating that the UE supports an NR network;

a processing module, configured to configure an MAI list of an NR network for the UE according to the NR capability indication information of the UE;

a sending module, configured to send an attach accept message to a base station; the attach accept message carries the MAI list;

Optionally, the processing module is further configured to configure a TAI list for the UE; the attach accept message also carries the TAI list.

The attaching apparatus may be implemented by software, or may be implemented as core network equipment by hardware equipment, which is not limited to this, and the paging apparatus is specifically configured to implement the technical solution of each paging method provided in the fourth aspect, and its implementation principle is similar, and please refer to the first aspect for specific implementation manner and details.

In this application, all the technical solutions provided by the first to seventh aspects may be implemented by software programming, or may be implemented by combining entity devices, that is, by combining hardware and software, to implement the above technical solutions, which is not limited in this application.

A tenth aspect of the present invention provides a core network device, including: a memory storing program instructions, a processor for controlling execution of the program instructions, a receiver for receiving messages, and a transmitter for transmitting messages;

the transmitter is used for transmitting a paging message for the UE to the base station according to the indication of the processor; the paging message carries an MAI list of NR networks configured for the UE by a processor;

An eleventh aspect of the present invention provides a base station, comprising: a memory storing program instructions, a processor for controlling execution of the program instructions, a receiver for receiving messages, and a receiver for sending messages;

the receiver is used for receiving a paging message sent by core network equipment; the paging message carries an MAI list of the NR network of the UE; wherein the MAI list includes at least one MAI for identifying a moving area of the NR network, the moving area including at least one NR cell.

The processor is configured to page the UE according to the paging message.

A twelfth aspect of the present invention provides a core network device, including: a memory storing program instructions, a processor for controlling execution of the program instructions, a transmitter, and a receiver;

the receiver is used for receiving an attachment request message sent by a base station; the attach request message comprises new radio access technology (NR) capability indication information of User Equipment (UE), and the NR capability indication information is used for indicating that the UE supports an NR network;

the processor is configured to configure an MAI list of NR networks for the UE according to the NR capability indication information of the UE;

the transmitter is used for transmitting an attachment acceptance message to the base station; the attach accept message carries the MAI list;

According to the paging method, the attachment method, the device and the equipment, when downlink service of the UE exists on the network side, after the MAI list is configured through the core network equipment, the UE is paged, the base station can page the corresponding UE according to the MAI list configured for the UE by the core network equipment, paging of the NR network to the UE with NR network capability is realized, paging of the UE with the NR network capability can be only performed, paging of an LTE network is not performed, and paging load is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are 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 an architecture diagram of a non-independently deployed NR network based on an LTE system;

fig. 2 is an architecture diagram of a specific implementation of a non-independently deployed NR network based on the LTE system;

FIG. 3 is a flowchart illustrating a first embodiment of a paging method according to the present invention;

FIG. 4 is a schematic signaling interaction flow chart of a second embodiment of a paging method according to the present invention;

FIG. 5 is a schematic signaling interaction flow chart of a third embodiment of a paging method according to the present invention;

fig. 6 is a schematic signaling interaction flow diagram of a fourth embodiment of the paging method of the present invention;

fig. 7 is a schematic signaling interaction flow diagram according to a first embodiment of the attachment method of the present invention;

FIG. 8 is a diagram illustrating a first exemplary embodiment of a paging device;

FIG. 9 is a diagram illustrating a second exemplary embodiment of a paging device;

fig. 10 is a schematic structural diagram of a third paging device according to the present invention;

fig. 11 is a schematic structural diagram of a fourth paging device according to the present invention;

fig. 12 is a schematic structural diagram of a fifth embodiment of a paging device according to the present invention;

FIG. 13 is a schematic view of a first embodiment of an attaching device according to the present invention;

fig. 14 is a schematic structural diagram of a first core network device according to an embodiment of the present invention;

fig. 15 is a schematic structural diagram of a base station according to a first embodiment of the present invention.

Detailed Description

Fig. 1 is a schematic diagram of an architecture of an NR network based on non-independent deployment of an LTE system, where, as shown in fig. 1, deployment of the NR network is based on an LTE network at present, only a transmission point of the NR network is deployed, and a core network corresponding to the NR network is not yet deployed, an interface is established between the transmission point of the NR network and a base station, and the NR network is accessed to a core network device of the LTE network through the base station. The transmission point of the NR network is used to provide an NR air interface transmission function, an interface exists between the transmission point of the NR network and an existing LTE eNB, which is referred to as an X5 interface in this scheme, and the transmission point of the NR network communicates with a 4G core network through the eNB. The transmission point of the NR network may be a base station of the NR network, or an NR network station, etc., and the present invention is not limited thereto. In this embodiment, a transmission point is taken as an example for description, the 4G core Network device includes a Mobility Management Entity (MME), a Public Data Network GateWay (P-GW), a serving GateWay (S-GW), and the like, and in subsequent implementations of this embodiment, only the MME is taken as an example for description. The UE with NR network capability can reside in an LTE cell or an NR cell, and the scheme is not limited depending on a cell residence strategy; whereas 4G UEs can only camp on LTE cells.

Fig. 2 is a schematic diagram of an architecture of a specific implementation of a non-independently deployed NR network based on an LTE system, where in order to improve a network transmission rate, the NR network may use a high frequency band for communication, which results in that a coverage area of an NR cell is smaller than that of an existing LTE cell operating in a low frequency band, as shown in fig. 2, a plurality of NR cells may exist in a coverage area of one LTE cell.

According to the architectures provided in fig. 1 and fig. 2, the eNB may regard the NR cell as its own cell, and the eNB may not forward the paging message to the transmission point of the NR network, and at this time, the UE residing in the NR cell cannot receive the paging message from the network side, resulting in a paging failure. Another solution is that the eNB uses the NR cell under its coverage as another cell of the base station, and the eNB forwards the paging message to the transmission point of the NR network, and then the transmission point pages the UE over the air interface, at this time, even for a legacy UE that does not support NR, the network side sends a paging message to the legacy UE in the NR network, in this case, there may be a plurality of NR cells in an LTE macro cell, and in addition to the LTE cells themselves, the number of cells is large, paging in each cell, which results in increased paging load, congestion of paging messages, and reduced paging success rate, cannot effectively page the NR network-capable UEs in the two ways described above, therefore, the present application provides a more reasonable paging method and an attachment method to implement paging for UEs with NR network communication capability.

The technical scheme of the application is applicable to any non-independently deployed network communication system, that is, a newly set wireless communication technology cannot work independently, and needs to serve user equipment with new wireless communication capability based on existing network equipment and core network equipment, an NR network is taken as an example in the scheme of the application, and based on a base station and a 4G core network, services are provided for UE supporting the NR network, and network elements related in the scheme include: the user equipment may also be referred to as a terminal or a terminal device, and may be a mobile phone, a tablet computer, a Personal Digital Assistant (PDA), a Point of sale terminal (POS), or a vehicle-mounted computer, and the specific type of the device is not limited.

The present application proposes a concept of a Moving Area (MA for short) for an NR network system. The MA is similar to a Tracking Area (TA) in an LTE network, and a location Area and a routing Area in a 2G/3G network. The mobile area is composed of a plurality of NR cells and used for positioning idle state UE, and when the idle state UE supporting the NR network moves in the mobile area, interaction with a core network is not needed, namely, the mobile area is not needed to be updated. The mobile Area is represented by a Mobile Area Identity (MAI), which is composed of a PLMN ID and a Mobile Area Code (MAC), or may be in other forms, which is not limited in the present application.

Fig. 3 is a flowchart of a first embodiment of the paging method of the present invention, and as shown in fig. 3, when a downlink service of a UE is to be sent on a network side, a core network device needs to page the UE, where the paging method specifically relates to a core network device, a base station, and a transmission point of an NR network, and the specific implementation process is as follows:

s101: the method comprises the steps that core network equipment sends a paging message to a base station, wherein the paging message carries an MAI list of an NR (network noise indicator) network configured for UE by the core network equipment.

In this step, when the network side has the downlink service of the UE to send, the core network device carries, in a paging message sent to the base station, a TAI list of an LTE network and an MAI list of an NR network previously configured for the UE, where the TAI is an identifier of a tracking area in the LTE system, each LTE cell corresponds to one TAI, and one TAI may include multiple LTE cells, where the TAI generally includes a lower public land mobile network identifier and a tracking area code. In the NR network in the present solution, the MAI list includes at least one MAI for identifying a moving area of the NR network, the moving area including at least one NR cell. The scheme provides a concept of a moving area, which is also composed of a plurality of NR cells, similar to a tracking area in LTE, and one or more MAIs may be included in each MAI list, and each MAI may be used to identify a plurality of NR cells, but each has only one unique MAI.

Before the core network device pages the UE, it needs to configure an MAI list and a TAI list for the UE in advance, and then can complete paging based on the MAI list and the TAI list of the UE. One specific way is that the core network device configures the MAI list according to NR capability indication information of the UE.

The core network device first needs to acquire NR capability indication information of the UE. The NR capability indication information is used to indicate that the UE supports an NR network, that is, the UE may communicate using the NR network, and the specific manner for the core network device to obtain the NR capability indication information of the UE at least includes the following:

the first method comprises the following steps: in the process of network attachment of UE for the first time, core network equipment receives an attachment request message sent by a base station, wherein the attachment request message carries NR capability indication information of the UE;

and the second method comprises the following steps: after the base station sends the TAI list configured by the core network equipment to the UE, the base station acquires the NR capability of the UE and reports the NR capability indication information of the UE to the core network equipment.

After the core network device obtains the NR capability indication information of the UE, the core network device configures the TAI list and the MAI list for the UE according to the NR capability indication information, so as to facilitate subsequent communication.

The core network equipment initiates paging to the UE with downlink service based on the configured TAI list and MAI list, namely sends paging message to the base station.

Optionally, in this scheme, the core network device may also only carry the MAI list in the paging message, that is, after the core network device obtains the NR capability indication information of the UE through the foregoing manner, the core network device only configures the MAI list for the UE according to the NR capability indication information, so that the UE with NR capability may be paged in the following.

S102: and the base station pages the UE according to the paging message.

In this step, the base station receives a paging message sent by the core network device, where the paging message includes a TAI list and an MAI list, and when the base station finds that the TAI list includes its own TAI, it initiates paging to the UE on a corresponding LTE cell. In addition, the base station determines whether the paging message needs to be forwarded to a transmission point of the NR network having an interface with the base station according to the MAI list in the paging message received from the MME, and the specific determination manner may be: the base station roots the MAI list in the paging message, checks whether the MAI list has MAIs of cells under the transmission point of the NR network connected to the base station, and if so, forwards the paging message to the transmission point of the NR network having the MAI of the cell in the list. At this time, the paging message forwarded to the transmission point of the NR network may carry only the MAI list but not the TAI list, or may not carry the TAI list and the MAI list.

If the paging message is sent to the transmission point of the NR network, the transmission point of the NR network receives the paging message sent by the base station, and then pages the UE on the corresponding NR cell, thereby completing the paging process.

Optionally, if the paging message only carries the MAI list, after receiving the paging message, the base station directly forwards the paging message carrying the MAI list to the transmission points of the corresponding NR networks, so that the transmission points of the NR networks page the UE over corresponding air interfaces. The paging message forwarded by the base station to the transmission point of the NR network may not carry the MAI list, which is not limited to this.

In this embodiment, for the core network device, the core network device sends a paging message to the UE to the base station when the UE has a downlink service, where the message carries an MAI list, or a TAI list and an MAI list, and for the base station, the base station receives the paging message sent by the core network device and pages the UE according to the MAI list, or the TAI list and the MAI list.

In the paging method provided in this embodiment, in an NR network system that is not deployed independently, a core network device configures a TAI list under LTE and/or an MAI list under NR network for a UE through NR capability indication information of the UE, so as to reduce a signaling load of an MME, and a base station may forward a paging message to a transmission point of a corresponding NR network according to the MAI list of the UE, so as to implement paging of the UE with NR network communication capability under the NR network. Compared with the scheme, the method ensures that the UE with the NR network capability can be paged on the NR cell; and only the UE with the NR network capability is paged in the NR cell, so that the paging load on the NR cell is reduced, the paging success rate of the UE supporting the NR network is effectively improved, and the paging optimization in the non-independently deployed NR system is realized.

On the basis of the first embodiment, it can be known that before paging a UE, the UE must attach, a base station sends an attach request message to core network equipment, and then the core network equipment configures an MAI list, or an MAI list and a TAI list, for the UE according to the attach request message, and then pages when the UE has downlink traffic.

Fig. 4 is a schematic signaling interaction flow diagram of a second embodiment of the paging method of the present invention, and as shown in fig. 4, in a process of network deployment, first, an S1 interface needs to be established between an eNB and a core network device, an X5 interface needs to be established between a transmission point of an NR network and the eNB, and in a process of establishing the X5 interface, the transmission point of the NR network informs the eNB of all NR cell identifiers and corresponding MAIs thereof managed by the transmission point of the NR network. Optionally, the notification may be a MAC. In the setup procedure of the S1 interface, based on the existing setup procedure of the S1 interface, the eNB needs to inform the core network device of the NR cell identities of all NR network transmission points with which the interface exists and their MAIs. Optionally, the notification may be a MAC. After network deployment is realized, the UE first needs to perform network attachment, and then the core network device can page the UE when there is a downlink service, and the following describes the process of initiating attachment and the subsequent paging process by the UE at the transmission point of the NR network, and the specific implementation steps are as follows:

s201: the UE sends an attach request message to a transmission point of the NR network.

In this step, in the process of initially accessing the network by the UE, an attach procedure needs to be performed, and the UE with NR network capability can directly initiate an attach request at a transmission point of the NR network.

S202: the transmission point of the NR network sends the attach request message to the base station.

In this step, since there is no direct interface between the transmission point of the NR network and the core network device, the transmission point of the NR network forwards the attach request message to the eNB after receiving the attach request message sent by the UE.

S203: and the base station adds the NR capability indication information of the UE in the attachment request message and sends the attachment request message after the NR capability indication information is added to the core network equipment.

In this step, after receiving an attach request message forwarded by a transmission point of the NR network, the eNB adds an NR capability indication message to the attach request message and sends the NR capability indication message to the core network device. The NR capability indication information is used to inform a core network device that the attach request message is from an air interface of an NR network, that is, the UE sending the attach request message has NR network capability.

Optionally, the NR capability indication information may be added to the attach request message by the UE in step S201 and finally reported to the core network device.

S204: and the core network equipment configures a TAI list and an MAI list for the UE according to the NR capability indication information.

In this step, after receiving the attach request message, the core network device learns that the UE is an NR UE through NR capability indication information in the attach request message, configures an MAI list and a TAI list for the UE according to the NR capability indication information, and sends the MAI list and the TAI list to the eNB through an attach accept message. The MAI list includes at least one MAI. In the scheme, the core network device is not related to the NR capability indication information when configuring the TAI list, but configures by using the existing method for configuring the tracking area of the LTE network.

Optionally, the core network device may also configure the MAI list only for the UE.

In this scheme, the core network device configures a TAI list and an MAI list for the UE with NR network capability at the same time, or configures only the MAI list, mainly considering that there is overlapping coverage between an NR cell and an LTE cell, the LTE cell can ensure continuous coverage, and the NR cell may be deployed in a dotted manner and cannot ensure continuous coverage. At this time, during the moving process, the idle UE may enter the LTE cell from one NR cell and then re-enter the NR cell. If the core network device only configures the MAI list at this time, when the UE enters the LTE cell, the TAU on the LTE cell is triggered, and when the UE enters the NR cell, the MAU updating process of the mobile area on the NR cell is triggered, and frequent movement between the LTE cell and the NR cell causes an increase in signaling load of the core network device. Considering that both LTE and NR cells are managed by a core network device (e.g., MME of LTE network), in order to reduce signaling load, when the UE is determined to be an NR UE, a TAI list and an MAI list may be configured for the UE at the same time. Thus, the NR UE can move within the LTE cell and the NR cell corresponding to the TAI list and the MAI list without interacting with a core network device.

S205: and the core network equipment sends an attachment acceptance message carrying the TAI list and the MAI list to the base station.

In this step, the core network device carries the configured TAI list and MAI list in an attach receive message and sends the attach receive message to the eNB. Optionally, when the core network device only configures the MAI list for the UE, the attach accept message only carries the MAI list.

In the above S204 and S205, the core network device receives the attach request message sent by the base station; the attach request message includes NR capability indication information of the UE, and the core network device configures a TAI list and an MAI list for the UE according to the NR capability indication information of the UE in the attach request message, or the MAI list, and sends an attach accept message to the base station; and the attach accept message carries the TAI list and the MAI list configured for the UE, or the MAI list, so as to realize the attach configuration of the UE.

S206: and the base station forwards the attachment acceptance message carrying the TAI list and the MAI list to a transmission point of the NR network.

In this step, the eNB sends an attach accept message received from the core network device to a corresponding transmission point of the NR network, where the attach accept message carries a TAI list and an MAI list configured by the MME for the NR UE. Alternatively, only the MAI list may be carried in the attach accept message.

S207: and the transmission point of the NR network forwards the attachment acceptance message carrying the TAI list and the MAI list to the UE.

In this step, the transmission point of the NR network receives an attach accept message from the eNB, where the attach accept message includes a TAI list and an MAI list configured by the core network device for the UE, where the attach accept message is replied by the core network device and is forwarded to the UE. Alternatively, only the MAI list may be carried in the attach accept message.

S208: and the core network equipment sends a paging message to the UE to the base station, wherein the paging message carries the TAI list and the MAI list.

In this step, when the UE has a service, the core network device pages the UE, and sends a paging message to the corresponding eNB according to the TAI list and the MAI list configured for the UE before, where the paging message carries the TAI list and the MAI list configured for the UE by the core network device. Or, the paging message only carries the MAI list configured by the core network device for the UE.

S209: and the base station pages the UE according to the TAI list.

In this step, the eNB receives a paging message sent by the core network device, where the paging message includes a TAI list. And when the eNB finds that the TAI list contains the self TAI, initiating paging to the UE on the corresponding LTE cell.

S210: and the base station sends the paging message to the transmission point of the NR network according to the MAI list.

In this step, the eNB determines whether it needs to forward the paging message to the transmission point of the NR network with which it has an interface, according to the MAI list in the paging message received from the core network device. At this time, the forwarded paging message may carry only the MAI list but not the TAI list, or may not carry the TAI list and the MAI list.

S211: the transmission point of the NR network pages the UE over the air interface.

And after receiving the paging message sent by the eNB, the transmission point of the NR network pages the UE on the corresponding NR cell.

Optionally, if the paging message only carries the MAI list, after receiving the paging message, the base station itself does not perform paging on an air interface, but forwards the MAI list to the transmission points of the corresponding NR networks, so that the transmission points of the NR networks perform paging on the corresponding air interfaces to the UE.

In the paging method provided by this embodiment, in a non-independently deployed NR network system, a UE having the capability of communicating using an NR network can trigger an attach procedure through a transmission point of the NR network. The core network equipment simultaneously configures an MAI list under LTE for the UE by identifying whether the UE has NR capability or not, or reduces the signaling load of the core network equipment through a TAI list and the MAI list under an NR network. And the eNB forwards the paging message to the corresponding transmission point of the NR network according to the MAI list configured for the UE by the core network equipment so as to realize paging of the UE under the transmission point of the NR network. Compared with the existing scheme, the method ensures that the NR UE can be paged on the NR cell; paging is only carried out on the NR cell aiming at the NR UE, so that the paging load on the NR cell is reduced, and the paging success rate of the NR UE is provided; in addition, the TAI list in LTE is configured simultaneously with the MAI in NR network, which can effectively reduce the signaling load of core network equipment. Paging optimization in a non-independently deployed NR network system is achieved.

Fig. 5 is a schematic signaling interaction flow diagram of a third embodiment of the paging method of the present invention, and as shown in fig. 5, in the process of network deployment, first, an S1 interface needs to be established between an eNB and a core network device, and an X5 interface needs to be established between a transmission point of an NR network and the eNB, where specific establishment manners of the S1 interface and the X5 interface are similar to those of the second embodiment. In the scheme, the UE can directly send an attachment request message to the base station to trigger an attachment process, and the specific implementation steps are as follows:

s301: and the UE sends an attachment request message to the base station, wherein the attachment request message carries NR capability indication information.

In this step, unlike the second embodiment, in this embodiment, the UE initiates an attach request on the LTE cell. And if the UE is 4G UE, the method is the same as the existing LTE technology. And if the UE is the UE with NR capability, adding NR capability indication information in the attachment request message.

The following description of the present embodiment is directed to only NR network capable UEs.

S302: and the base station sends the attachment request message to core network equipment.

In this step, the eNB sends an attach request message with NR capability indication information uploaded by the UE to the core network device.

S303: and the core network equipment configures a TAI list and an MAI list for the UE according to the NR capability indication information.

In this step, after receiving the attach request message, the core network device learns that the UE is an NR UE through an NR capability indication message in the attach request message, and configures a TAI list and an MAI list for the UE at the same time, and sends the TAI list and the MAI list to the eNB through an attach accept message. The MAI list includes at least one MAI.

S304: and the core network equipment sends an attachment acceptance message carrying the TAI list and the MAI list to the base station.

S305: and the base station forwards the attachment acceptance message carrying the TAI list and the MAI list to the UE.

S306: and the core network equipment sends a paging message to the UE to the base station, wherein the paging message carries the TAI list and the MAI list.

S307: and the base station pages the UE according to the TAI list.

S308: and the base station sends the paging message to the transmission point of the NR network according to the MAI list.

S309: the transmission point of the NR network pages the UE over the air interface.

In the subsequent processes of S304 to S309, as in the above embodiment, in this step, when the UE has a service, the core network device pages the UE, and sends a paging message to the corresponding eNB according to the TAI list and the MAI list configured for the UE before, where the paging message carries the TAI list and the MAI list configured for the UE by the core network device. And the eNB receives a paging message sent by the core network equipment, wherein the paging message comprises a TAI list. And when the eNB finds that the TAI list contains the self TAI, initiating paging to the UE on an air interface. The eNB determines whether the paging message needs to be forwarded to a transmission point of an NR network with an interface according to an MAI list in the paging message received from the core network equipment. At this time, the forwarded paging message may carry only the MAI list but not the TAI list, or may not carry the TAI list and the MAI list. And after receiving the paging message sent by the eNB, the transmission point of the NR network pages the UE on an air interface.

Optionally, in this embodiment, similar to the embodiment shown in fig. 4, the core network device may only configure the MAI list for the UE in the UE attachment process, in this case, when the UE has downlink service and pages the UE, the paging message sent by the core network device to the base station only carries the MAI list, and after the base station receives the paging message, the base station does not page on an air interface (step S307 does not need to execute), but forwards the paging message to a transmission point of the corresponding NR network, so that the transmission point of the NR network pages the UE on the corresponding air interface.

In the paging method provided in this embodiment, in an non-independently deployed NR network system, an NR UE may initiate an attach procedure through an eNB, and a core network device configures an MAI list for the UE by identifying whether the UE has an NR network capability, or configures a TAI list in an LTE network and an MAI list in an NR network at the same time, so as to reduce a signaling load of the core network device. And the eNB forwards the paging message to a corresponding transmission point of the NR network according to the MAI list configured for the UE by the core network equipment so as to realize paging of the NR network UE under the transmission point of the NR network. The paging of the NR UE on the NR cell is ensured, and the paging is only carried out on the NR cell aiming at the NR UE, so that the paging load on the NR cell is reduced, and the paging success rate of the NR UE is provided; in addition, the TAI list in LTE is configured simultaneously with the MAI in NR network, which can effectively reduce the signaling load of core network equipment.

Fig. 6 is a schematic signaling interaction flow diagram of a fourth embodiment of the paging method of the present invention, as shown in fig. 6, when an attach request is initiated on an LTE cell by a UE of three embodiments, an attach request message in an existing LTE system is modified, and an NR capability indication message of the UE is added, this embodiment provides a scheme that does not modify the LTE attach request message, and provides a paging method for a UE of an NR network, which is similar to the foregoing embodiments, an S1 interface and an X5 interface need to be established in a network deployment process, and a specific deployment method is consistent with the foregoing embodiments, and a specific implementation step of the paging method provided in this embodiment is:

s401: the UE sends an attach request message to the base station.

In this step, the UE initiates an attach request message on the LTE cell, which, like the existing LTE technology, does not include NR capability indication information of the UE.

S402: and the base station sends the attachment request message to core network equipment.

In this step, the eNB sends an attach request message sent by the UE to the core network device.

S403: and the core network equipment configures a TAI list for the UE.

S404: and the core network equipment sends an attachment acceptance message carrying the TAI list to the base station.

In the above steps, after receiving the attach request message, the core network device configures a TAI list for the UE, replies an attach accept message to the UE, and sends the attach accept message to the eNB. The attach accept message includes a TAI list.

S405: and the base station forwards the attach accept message carrying the TAI list to the UE.

And after receiving the attachment acceptance message sent by the core network equipment, the eNB sends the attachment acceptance message to the UE.

The above steps S401 to S405 are attachment procedures defined in the LTE system.

S406: core network equipment acquires NR capability indication information of the UE; the NR capability indication information indicates that the UE supports an NR network.

In this embodiment, since the UE is attached for the first time, the core network device side does not have the capability information of the UE, so as to acquire the capability of the UE. The UE capability interaction process is the same as the UE capability interaction process in the existing LTE, and only when the UE reports the capability, the indication that the UE supports the NR network capability is added.

Specifically, the method comprises the following steps: the eNB initiates a query to the UE and reports the capability information of the UE to the core network equipment after the capability information is obtained. If the UE is 4G UE, the UE capability interaction process is the same as the existing LTE system technology; if the UE supports the NR network, the NR capability indication information of the UE needs to be added to the UE capability information, that is, the core network device knows that the UE is the UE supporting the NR network.

S407: and the core network equipment configures a TAI list and an MAI list for the UE according to the NR capability indication information.

After receiving the attach request message, the core network device learns that the UE is an NR UE through an NR capability indication message in the attach request message, and may configure a TAI list and an MAI list for the UE at the same time.

S408: and the core network equipment sends an update message carrying the TAI list and the MAI list to the base station.

In this step, the core network device obtains NR capability indication information of the UE through a UE capability interaction process, and if the UE is an NR UE, configures an MAI list for the UE, and sends an update message to the eNB, where the update message includes a TAI list and an MAI list configured for the UE by the core network device.

Optionally, in this scheme, after obtaining the NR capability indication information, the core network device may configure the MAI list only for the UE, or may reconfigure and update the TAI list, which is not limited herein.

S409: and the base station forwards the updating message carrying the TAI list and the MAI list to the UE.

In this step, after receiving an update message with a TAI list and an MAI list sent by a core network device, the eNB directly sends the update message to the UE.

S410: and the core network equipment sends a paging message to the UE to the base station, wherein the paging message carries the TAI list and the MAI list.

S411: and the base station pages the UE according to the TAI list.

S412: and the base station sends the paging message to the transmission point of the NR network according to the MAI list.

S413: the transmission point of the NR network pages the UE over the air interface.

In the subsequent processes of S410 to S413, as in the above embodiment, in this step, when the UE has a service, the core network device pages the UE, and sends a paging message to the corresponding eNB according to the TAI list and the MAI list configured for the UE before, where the paging message carries the TAI list and the MAI list configured for the UE by the core network device. And the eNB receives a paging message sent by the core network equipment, wherein the paging message comprises a TAI list. And when the eNB finds that the TAI list contains the self TAI, initiating paging to the UE on the corresponding LTE cell. The eNB determines whether the paging message needs to be forwarded to a transmission point of an NR network with an interface according to an MAI list in the paging message received from the core network equipment. At this time, the forwarded paging message may carry only the MAI list but not the TAI list, or may not carry the TAI list and the MAI list. And after receiving the paging message sent by the eNB, the transmission point of the NR network pages the UE on the corresponding NR cell.

According to the paging method provided by the embodiment, the NR capability indication information does not need to be added to the attach request message when the UE is attached for the first time, and in the subsequent interaction process, the UE reports the NR capability indication information to the base station. And the eNB forwards the paging message to a corresponding transmission point of the NR network according to the MAI list configured for the UE by the core network equipment so as to realize paging of the NR UE under the transmission point of the NR network. The paging of the NR UE on the NR cell is ensured, the paging is only carried out on the NR cell aiming at the NR UE, the paging load on the NR cell is reduced, the paging success rate of the NR UE is provided, and the paging optimization in a non-independently deployed NR network system is realized.

In the above embodiments, after obtaining the NR capability indication information of the UE, the core network device configures the TAI list and the MAI list for the UE at the same time, that is, the default paging may be performed on the UE on the LTE cell and the NR cell at the same time. There is a possibility that the UE may be stationary and have low mobility, and thus the TAI list and the MAI list are not configured for the UE at the same time from the beginning, which causes a certain waste of paging resources. Therefore, an alternative is proposed, where UE is NR UE, and when the UE always moves in an LTE cell corresponding to a TAI list configured for the UE by a core network device, the UE does not interact with the core network device, and at this time, if there is a service, the core network device pages the UE on the corresponding LTE cell according to the TAI list. At this time, the paging load on the NR cell is further reduced as compared with the foregoing embodiment. When the NR UE moves from the LTE cell to the NR cell, the MAI of the NR cell does not belong to the TAI list configured for the UE by the core network device in the previous attach process, and therefore the UE may initiate a mobility area update process. The UE sends a mobile area update message to a transmission point of the NR network, and then forwards the message to the eNB, and finally reaches the core network device. The core network device can know that the UE has initiated an attach request in an LTE cell before and configures a TAI list for the UE, and at the same time, the core network device can know that the UE has initiated a mobility area update request message in an NR cell at this time, so the core network device configures an MAI list for the UE and indicates that the UE does not need to interact with the core network device when moving on the corresponding LTE cell and NR cell.

At this time, the mobile area update accept message may include a TAI list and an MAI list; it may also be a MAI list and an indication to inform the UE to keep both the MAI list and a previously configured TAI list. And the mobile area update receiving message is sent to the eNB by the core network equipment, further forwarded to a transmission point of the NR network by the eNB and finally sent to the UE. The core network device does not directly configure the TAI list and the MAI list for the UE at the same time, and the paging load on the NR cell is further reduced.

On the contrary, if the UE always moves in the NR cell corresponding to the MAI list configured by the core network device, the UE does not interact with the core network device, and at this time, if there is a service, the core network device pages the UE in the corresponding NR cell according to the MAI list, specifically, the core network device sends a paging message to the corresponding eNB according to MAI information received from the eNB when the S1 interface is established, where the paging message includes the MAI list, the eNB forwards the paging message to a transmission point of the corresponding NR network after receiving the paging message with the MAI list, and finally, the transmission point of the NR network that receives the paging message pages the UE with NR network capability in the corresponding NR cell. At this time, compared with the foregoing embodiment, paging is performed only on NR UEs at the transmission point of the NR network, reducing the paging load on the LTE cell. When the UE moves from the NR cell to the LTE cell, and the TAI of the LTE cell does not belong to the MAI list which is not configured by the NR UE before the core network equipment, the UE initiates the TAU. The process of initiating the TAU is the same as that of the existing LTE technology, the UE sends a TAU request message to the eNB, and the eNB forwards the TAU request message to the core network equipment after receiving the TAU request message. The core network device replies a TAU accept message, the core network device can know that the UE has initiated an attach request in the NR cell before and configures an MAI list for the UE, and at the same time, the core network device can know that the UE has initiated the TAU request message in the LTE cell at this time, so the core network device configures the TAI list for the UE and indicates that the UE does not need to interact with the core network device when moving on the corresponding LTE cell and NR cell.

At this time, the TAU accept message may include a TAI list and an MAI list; the indication is used for informing the UE to simultaneously reserve the TAI list and the MAI list configured before, the TAU acceptance message is sent to the eNB by the core network equipment, and then the eNB sends the TAU acceptance message to the UE, and the UE is paged subsequently. In the scheme, the core network equipment does not directly configure the TAI list and the MAI list for the UE at the same time, so that the paging load on the LTE cell is reduced.

In any of the above implementation manners, the S1 interface needs to be established between the base station and the core network device, and the establishment manner of the S1 interface may specifically be implemented as follows: a base station acquires cell identifiers of all NR cells managed by a transmission point of an NR network with an interface between the base station and MAIs corresponding to all the NR cells, and the base station sends an S1 interface establishment request message to core network equipment; the S1 interface establishment request message includes cell identifiers of all NR cells managed by a transmission point of the NR network having an interface with the base station and MAIs corresponding to each NR cell, and may be in the form of all MAIs at the transmission point of the NR network and NR cell identifiers corresponding to each MAI; after receiving the S1 interface establishment request message, the core network device performs corresponding configuration, and returns an S1 interface establishment response message to the base station, and the base station receives an S1 interface establishment response message returned by the core network device, thereby completing the establishment process of the S1 interface.

In this scheme, the correspondence between MAI and NR cell identities includes at least the following two ways:

TABLE 1

The NR cells with MAI a shown in table 1 have: NR cell 1 and NR cell 2; NR cell whose MAI is B has NR cell 3.

TABLE 2

NR cell identification	MAI
		1	A
2	A
		3	B

Table 2 shows that the MAI of NR cell 1 and NR cell 2 is a and the MAI of cell 3 is B.

In a specific implementation, the relationship between the NR cell and the MAI may be mapped in any one of the above manners, and the scheme is not limited in this respect.

In the above embodiments one to four. And in the alternative, the invention also makes certain improvements to the process of initial attachment of the UE, and the following describes the attachment process of the UE separately:

fig. 7 is a schematic signaling interaction flow diagram of an attachment method according to a first embodiment of the present invention, and as shown in fig. 7, as in the above paging method, before the attachment, an S1 interface needs to be established between an eNB and a core network device, and an X5 interface needs to be established between a transmission point of an NR network and the eNB, where specific establishment manners of the S1 interface and the X5 interface are the same as those in the above embodiment and are not described herein again. The attachment method comprises the following specific implementation steps:

s501: the UE sends an attach request message to a transmission point of the NR network.

S502: the transmission point of the NR network sends the attach request message to the base station.

S503: and the base station adds the NR capability indication information of the UE in the attachment request message and sends the attachment request message after the NR capability indication information is added to the core network equipment.

S504: and the core network equipment configures a TAI list and an MAI list for the UE according to the NR capability indication information.

In this step, after receiving the attach request message, the core network device learns that the UE is an NR UE through NR capability indication information in the attach request message, and configures a TAI list and an MAI list for the UE at the same time, and sends the TAI list and the MAI list to the eNB through an attach accept message. The MAI list includes at least one MAI. The core network device configures a TAI list and an MAI list for the UE with NR network capability, mainly considering that there is overlapping coverage between an NR cell and an LTE cell, the LTE cell can ensure continuous coverage, and the NR cell may be deployed in a dotted manner and cannot ensure continuous coverage. At this time, during the moving process, the idle UE may enter the LTE cell from one NR cell and then re-enter the NR cell. If the core network device only configures the MAI list at this time, when the UE enters the LTE cell, the TAU on the LTE cell is triggered, and when the UE enters the NR cell, the MAU on the NR cell is triggered, and frequent movement between the LTE cell and the NR cell causes an increase in signaling load of the core network device. Considering that both LTE and NR cells are managed by a core network device (e.g., MME of LTE network), in order to reduce signaling load, when the UE is determined to be an NR UE, a TAI list and an MAI list may be configured for the UE at the same time. Thus, the NR UE can move within the LTE cell and the NR cell corresponding to the TAI list and the MAI list without interacting with a core network device.

S505: and the core network equipment sends an attachment acceptance message carrying the TAI list and the MAI list to the base station.

In this step, the core network device carries the configured TAI list and MAI list in an attach receive message and sends the attach receive message to the eNB.

S506: and the base station forwards the attachment acceptance message carrying the TAI list and the MAI list to a transmission point of the NR network.

In this step, the eNB sends an attach accept message received from the core network device to a corresponding transmission point of the NR network, where the attach accept message carries a TAI list and an MAI list configured by the MME for the NR UE.

S507: and the transmission point of the NR network forwards the attachment acceptance message carrying the TAI list and the MAI list to the UE.

In this step, the NR network transmission point receives an attach accept message from the eNB, where the core network device replies to the UE, and forwards the attach accept message to the UE, where the attach accept message carries a TAI list and an MAI list configured by the core network device for the UE, thereby completing an attach process of the UE.

Based on the attach procedure, optionally, the UE may directly send an attach request message to the base station, where the attach request message carries the NR capability indication information of the UE, and the subsequent attach procedure is the same as that in this embodiment.

Optionally, in this embodiment, the core network device may only configure the MAI list for the UE in the UE attach process, and the specific implementation process may refer to the attach process in the second embodiment of the paging method.

In the attach method provided in this embodiment, by adding the NR capability indication information of the UE in the attach request message sent to the core network device, the core network device may configure the MAI list and the TAI list for the UE at the same time, so as to effectively save the signaling overhead of the core network device, and improve the paging success rate for the UE when the subsequent UE has downlink traffic.

In any of the above embodiments, in the attach procedure or the paging procedure, the core network device configures the TAI list and the NR capability indication information independently, and configures the tracking area by using the existing method for configuring the tracking area of the LTE network.

In any of the embodiments described above, when the NR network is deployed based on an LTE network, the core network device generally refers to an MME, and may also be a P-GW or an S-GW, and the present solution is not limited to the above device.

Fig. 8 is a schematic structural diagram of a paging device according to a first embodiment of the present invention, and as shown in fig. 8, the paging device 10 includes: a processing module 11 and a sending module 12;

a sending module 12, configured to send a paging message to a base station for a user equipment UE; the paging message carries an MAI list of NR networks configured for the UE by the processing module 11;

Optionally, the processing module 11 is further configured to configure a TAI list for the UE, and the paging message further carries the MAI list.

The paging apparatus provided in this embodiment is configured to execute the technical solution of the core network device in any of the foregoing method embodiments, and the implementation principle and the technical effect are similar, which are not described herein again.

Fig. 9 is a schematic structural diagram of a second embodiment of the paging device in the present invention, and as shown in fig. 9, the paging device 10 further includes:

a receiving module 13, configured to obtain NR capability indication information of the UE; the NR capability indication information is used for indicating that the UE supports an NR network;

the processing module 11 is further configured to configure the MAI list for the UE according to the NR capability indication information.

On the basis of the above scheme, the receiving module 13 is specifically configured to receive an attach request message sent by the base station; the attach request message includes NR capability indication information of the UE.

Optionally, the sending module 12 is further configured to send an attach accept message to the base station; the attach accept message carries the MAI list configured for the UE, or carries the TAI list and the MAI list configured for the UE.

Optionally, the receiving module 13 is further configured to receive NR capability indication information of the UE sent by the base station;

the sending module 12 is further configured to send an update message to the base station; the update message includes: the processing module 11 configures an MAI list, or an MAI list and a TAI list for the UE according to the NR capability indication information of the UE.

Optionally, the receiving module 13 is further configured to receive an S1 interface establishment request message sent by the base station; the S1 interface establishment request message includes: cell identifiers of all NR cells managed by a transmission point of an NR network with an interface between the base station and MAI corresponding to each NR cell;

the sending module 12 is further configured to return an S1 interface setup response message to the base station.

Fig. 10 is a schematic structural diagram of a third embodiment of the paging device in the present invention, and as shown in fig. 10, the paging device 20 includes: a receiving module 21 and a processing module 22;

a receiving module 21, configured to receive a paging message sent by a core network device; the paging message carries an MAI list of the NR network of the UE; wherein the MAI list includes at least one MAI for identifying a moving area of the NR network, the moving area including at least one NR cell.

And the processing module 22 is configured to page the UE according to the paging message.

Optionally, the paging message received by the receiving module 21 further carries a TAI list of the UE.

The paging device provided in this embodiment is configured to execute the technical solution of the base station in any of the foregoing method embodiments, and the implementation principle and the technical effect are similar, which are not described herein again.

Fig. 11 is a schematic structural diagram of a fourth paging device according to the present invention, and as shown in fig. 11, the paging device 20 further includes:

a sending module 23, configured to forward the paging message to a corresponding transmission point of the NR network according to the MAI list.

Optionally, the sending module 23 is further configured to send an attach request message to the core network device; the attach request message includes NR capability indication information of the UE; the NR capability indication information is used for indicating that the UE supports an NR network;

the receiving module 21 is further configured to receive an attach accept message returned by the core network device; the attach accept message carries the MAI list configured by the core network device for the UE according to the NR capability indication information of the UE, or carries the TAI list and the MAI list configured by the core network device for the UE.

Optionally, the receiving module 21 is further configured to receive an attach request message sent by the UE, where the attach request message includes an NR capability indication of the UE.

Optionally, the receiving module 21 is further configured to receive an attach request message sent by a transmission point of the NR network;

the processing module 22 is further configured to add NR capability indication information of the UE in the attach request message.

Optionally, the sending module 23 is further configured to send a capability query message to the UE;

the receiving module 21 is further configured to receive NR capability indication information fed back by the UE; the NR capability indication information is used for indicating that the UE supports an NR network;

the sending module 23 is further configured to send the NR capability indication information of the UE to the core network device;

the receiving module 21 is further configured to receive an update message returned by the core network device; and the update message carries the MAI list or the MAI list and the TAI list for the UE by the core network equipment according to the NR capability indication information of the UE.

Fig. 12 is a schematic structural diagram of a fifth embodiment of the paging device in the present invention, and as shown in fig. 12, the paging device 20 further includes:

an obtaining module 24, configured to obtain cell identifiers of all NR cells managed by a transmission point of an NR network having an interface with the paging apparatus and an MAI corresponding to each NR cell;

the sending module 23 is further configured to send an S1 interface establishment request message to the core network device; the S1 interface establishment request message includes cell identifiers of all NR cells managed by a transmission point of the NR network having an interface with the paging device 20 and MAIs corresponding to each NR cell;

the receiving module 21 is further configured to receive an S1 interface setup response message returned by the core network device.

Fig. 13 is a schematic structural diagram of a first embodiment of an attaching device according to the present invention, and as shown in fig. 13, the attaching device 30 includes: a receiving module 31, a processing module 32 and a transmitting module 33;

a receiving module 31, configured to receive an attach request message sent by a base station; the attach request message comprises NR capability indication information of the UE, and the NR capability indication information is used for indicating that the UE supports an NR network;

a processing module 32, configured to configure an MAI list of an NR network for the UE according to the NR capability indication information of the UE;

a sending module 33, configured to send an attach accept message to the base station; the attach accept message carries the MAI list;

Optionally, the processing module is further configured to configure a TAI list for the UE, and the attach accept message further carries the TAI list.

Optionally, the receiving module 31 is further configured to receive an S1 interface establishment request message sent by the base station; the S1 interface establishment request message includes cell identifiers of all NR cells managed by a transmission point of an NR network having an interface with the base station and an MAI corresponding to each NR cell;

the processing module 32 is configured to establish an S1 interface with the base station according to the S1 interface establishment request message;

the sending module 33 is further configured to return an S1 interface setup response message to the base station.

Fig. 14 is a schematic structural diagram of a first core network device according to the present invention, and as shown in fig. 14, the core network device 40 includes: a memory 41 storing program instructions, a processor 42 for controlling the execution of the program instructions, a transmitter 43 for transmitting messages and a receiver 44 for receiving messages;

the transmitter 43 is configured to transmit a paging message to the UE to the base station according to the indication of the processor 42; the paging message carries an MAI list of NR networks configured for the UE by the processor 42;

Optionally, the paging message sent by the sender 43 further carries a TAI list configured by the processor 42 for the UE.

Optionally, the processor 42 is further configured to:

acquiring NR capability indication information of the UE; the NR capability indication information is used for indicating that the UE supports an NR network;

and configuring the MAI list for the UE according to the NR capability indication information.

A receiver 44, configured to receive an attach request message sent by the base station; the attach request message includes NR capability indication information of the UE.

Optionally, the transmitter 43 is further configured to transmit an attach accept message to the base station; the attach accept message carries the MAI list configured for the UE, or carries the TAI list and the MAI list configured for the UE.

Optionally, the receiver 44 is further configured to receive NR capability indication information of the UE sent by the base station;

the transmitter 43 transmits an update message to the base station; the update message includes: and the core network equipment configures an MAI list or an MAI list and a TAI list for the UE according to the NR capability indication information of the UE.

Optionally, the receiver 44 is further configured to receive an S1 interface setup request message sent by the base station; the S1 interface establishment request message includes: cell identifiers of all NR cells managed by a transmission point of an NR network with an interface between the base station and MAI corresponding to each NR cell;

the transmitter 43 is further configured to return an S1 interface setup response message to the base station.

Optionally, the core network device provided in this embodiment may also be used to implement the attach method shown in fig. 7, that is, the receiver 44 is configured to receive an attach request message sent by a base station; the attach request message comprises new radio access technology (NR) capability indication information of User Equipment (UE), and the NR capability indication information is used for indicating that the UE supports an NR network; the processor 42 is configured to configure a mobile area identity MAI list of an NR network for the UE according to the NR capability indication information of the UE; the transmitter 43 is configured to transmit an attach accept message to the base station; the attach accept message carries the MAI list;

Optionally, the processor 42 is further configured to configure a TAI list for the UE; the attach accept message also carries the TAI list.

Optionally, the receiver 44 is further configured to receive an S1 interface setup request message sent by the base station; the S1 interface establishment request message includes cell identifiers of all NR cells managed by a transmission point of an NR network having an interface with the base station and an MAI corresponding to each NR cell; the processor 42 is further configured to establish an S1 interface with the base station according to the S1 interface setup request message; the transmitter 43 is further configured to return an S1 interface setup response message to the base station.

The specific implementation scheme refers to the technical scheme of the embodiment shown in fig. 7.

The core network device provided in this embodiment is configured to execute the technical solution in any one of the foregoing method embodiments, and the implementation principle and the technical effect are similar, which are not described herein again.

Fig. 15 is a schematic structural diagram of a base station according to a first embodiment of the present invention, and as shown in fig. 15, the base station 50 includes: a memory 51 storing program instructions, a processor 52 for controlling the execution of the program instructions, a receiver 53 for receiving messages, and a transmitter 54 for transmitting messages;

the receiver 53 is configured to receive a paging message sent by a core network device; the paging message carries an MAI list of the NR network of the UE; wherein the MAI list includes at least one MAI for identifying a moving area of the NR network, the moving area including at least one NR cell.

The processor 52 is configured to page the UE according to the paging message.

Optionally, the receiver 53 receives the paging message and also carries a TAI list of the UE.

Optionally, the sender 54 is configured to forward the paging message to a transmission point of the corresponding NR network according to the MAI list.

Optionally, the transmitter 54 is further configured to send an attach request message to the core network device; the attach request message includes NR capability indication information of the UE; the NR capability indication information is used for indicating that the UE supports an NR network;

the receiver 53 is further configured to receive an attach accept message returned by the core network device; the attach accept message carries the MAI list configured by the core network device for the UE according to the NR capability indication information of the UE, or carries the TAI list and the MAI list configured by the core network device for the UE.

Optionally, the receiver 53 is further configured to receive an attach request message sent by the UE, where the attach request message includes an NR capability indication of the UE.

Optionally, the receiver 53 is further configured to receive an attach request message sent by a transmission point of the NR network;

the processor 52 is further configured to add NR capability indication information of the UE in the attach request message.

Optionally, the transmitter 54 is further configured to transmit a capability query message to the UE;

the receiver 53 is further configured to receive NR capability indication information fed back by the UE; the NR capability indication information is used for indicating that the UE supports an NR network;

the transmitter 54 is further configured to transmit the NR capability indication information of the UE to the core network device;

the receiver 53 is further configured to receive an update message returned by the core network device; and the update message carries the MAI list or the MAI list and the TAI list for the UE by the core network equipment according to the NR capability indication information of the UE.

Optionally, the processor 52 is further configured to obtain cell identifiers of all NR cells managed by a transmission point of an NR network having an interface with the base station and an MAI corresponding to each NR cell;

the transmitter 54 is further configured to send an S1 interface setup request message to the core network device; the S1 interface establishment request message includes cell identifiers of all NR cells managed by a transmission point of an NR network having an interface with the base station and an MAI corresponding to each NR cell;

the receiver 53 is further configured to receive an S1 interface setup response message returned by the core network device.

The base station provided in this embodiment is configured to execute the technical solution in any of the foregoing method embodiments, and the implementation principle and the technical effect are similar, which are not described herein again.

In the above embodiments of the core network device or the base station, it should be understood that the Processor may be a Central Processing Unit (CPU), other general purpose processors, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in the processor.

Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: read-only memory (ROM), RAM, flash memory, hard disk, solid state disk, magnetic tape, floppy disk, optical disk, and any combination thereof.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for paging, comprising:

the core network equipment sends a paging message to the user equipment UE to the base station; the paging message carries a Mobile Area Identity (MAI) list of a new radio access technology (NR) network configured for the User Equipment (UE) by the core network equipment;

wherein the MAI list includes at least one MAI for identifying a moving area of the NR network, the moving area including at least one NR cell;

the method further comprises the following steps:

the core network equipment acquires NR capability indication information of the UE; the NR capability indication information is used for indicating that the UE supports an NR network;

2. The method of claim 1, wherein the paging message further carries a Tracking Area Identity (TAI) list of the UE.

3. The method of claim 1, wherein the obtaining, by the core network device, NR capability indication information of the UE comprises:

4. The method of claim 3, further comprising:

the core network equipment sends an attachment acceptance message to the base station; the attach accept message carries the MAI list configured for the UE, or carries the TAI list and the MAI list configured for the UE.

5. The method of claim 1, further comprising:

the core network equipment receives NR capability indication information of the UE sent by the base station;

6. The method according to any of claims 1 to 5, wherein before the core network device sends a paging message to a base station for a User Equipment (UE), the method further comprises:

the core network equipment receives an S1 interface establishment request message sent by the base station; the S1 interface establishment request message includes: cell identifiers of all NR cells managed by a transmission point of an NR network with an interface between the base station and MAI corresponding to each NR cell;

7. A method for paging, comprising:

a base station receives a paging message sent by core network equipment; the paging message carries a Mobile Area Identity (MAI) list of a new radio access technology (NR) network of User Equipment (UE); wherein the MAI list includes at least one MAI for identifying a moving area of the NR network, the moving area including at least one NR cell;

the base station pages the UE according to the paging message;

the method further comprises the following steps:

the base station receives an attachment acceptance message returned by the core network equipment; the attach accept message carries the MAI list configured by the core network device for the UE according to the NR capability indication information of the UE, or carries the TAI list and the MAI list configured by the core network device for the UE.

8. The method of claim 7, wherein the paging message further carries a Tracking Area Identity (TAI) list of the UE.

9. The method according to claim 7 or 8, wherein the base station pages the UE according to the paging message, comprising:

10. The method of claim 7, wherein before the base station sends the attach request message to the core network device, the method further comprises:

the base station receives an attachment request message sent by the UE, wherein the attachment request message comprises an NR capability indication of the UE.

11. The method of claim 7, wherein before the base station sends the attach request message to the core network device, the method further comprises:

the base station receives an attachment request message sent by a transmission point of an NR network;

the base station adds NR capability indication information of the UE in the attach request message.

12. The method of claim 7, further comprising:

the base station sends a capability query message to the UE;

the base station receives an update message returned by the core network equipment; and the update message carries the MAI list, or the MAI list and the TAI list, configured for the UE by the core network equipment according to the NR capability indication information of the UE.

13. The method according to any one of claims 7 to 8 and 10 to 12, wherein before the base station receives the paging message sent by the core network device, the method further comprises:

the base station acquires cell identifiers of all NR cells managed by a transmission point of an NR network with an interface between the base station and MAI corresponding to each NR cell;

the base station sends an S1 interface establishment request message to the core network equipment; the S1 interface establishment request message includes cell identifiers of all NR cells managed by a transmission point of an NR network having an interface with the base station and an MAI corresponding to each NR cell;

14. An attachment method, comprising:

the core network equipment receives an attachment request message sent by a base station; the attach request message comprises new radio access technology (NR) capability indication information of User Equipment (UE), and the NR capability indication information is used for indicating that the UE supports an NR network;

15. The method of claim 14, further comprising:

the core network equipment configures a Tracking Area Identity (TAI) list for the UE; the attach accept message also carries the TAI list.

16. The method according to claim 14 or 15, wherein before the core network device obtains the new radio access technology, NR, capability indication of the user equipment, UE, the method further comprises:

the core network equipment receives an S1 interface establishment request message sent by the base station; the S1 interface establishment request message includes cell identifiers of all NR cells managed by a transmission point of an NR network having an interface with the base station and an MAI corresponding to each NR cell;

17. A core network device, comprising: a memory storing program instructions, a processor for controlling execution of the program instructions, a receiver for receiving messages, and a transmitter for transmitting messages;

the transmitter is used for transmitting a paging message for User Equipment (UE) to a base station according to the indication of the processor; the paging message carries a Mobile Area Identification (MAI) list of a new radio access technology (NR) network configured for the UE by a processor;

the processor is further configured to:

18. The core network device of claim 17, wherein the paging message sent by the transmitter further carries a Tracking Area Identity (TAI) list configured by the processor for the UE.

19. The core network device of claim 17, wherein the receiver is configured to receive an attach request message sent by the base station; the attach request message includes NR capability indication information of the UE.

20. The core network device of claim 19, wherein the transmitter is further configured to transmit an attach accept message to the base station; the attach accept message carries the MAI list configured for the UE, or carries the TAI list and the MAI list configured for the UE.

21. The core network device of claim 17, wherein the receiver is further configured to receive NR capability indication information of the UE sent by the base station;

the transmitter transmits an update message to the base station; the update message includes: and the core network equipment configures an MAI list or an MAI list and a TAI list for the UE according to the NR capability indication information of the UE.

22. The core network device according to any of claims 17 to 21, wherein the receiver is further configured to receive an S1 interface setup request message sent by the base station; the S1 interface establishment request message includes: cell identifiers of all NR cells managed by a transmission point of an NR network with an interface between the base station and MAI corresponding to each NR cell;

the transmitter is further configured to return an S1 interface setup response message to the base station.

23. A base station, comprising: a memory storing program instructions, a processor for controlling execution of the program instructions, a transmitter for transmitting messages, and a receiver for receiving messages;

the receiver is used for receiving a paging message sent by core network equipment; the paging message carries a Mobile Area Identity (MAI) list of a new radio access technology (NR) network of User Equipment (UE); wherein the MAI list includes at least one MAI for identifying a moving area of the NR network, the moving area including at least one NR cell;

the processor is configured to page the UE according to the paging message;

the transmitter is further configured to transmit an attach request message to the core network device; the attach request message includes NR capability indication information of the UE; the NR capability indication information is used for indicating that the UE supports an NR network;

the receiver is further configured to receive an attach accept message returned by the core network device; the attach accept message carries the MAI list configured by the core network device for the UE according to the NR capability indication information of the UE, or carries the TAI list and the MAI list configured by the core network device for the UE.

24. The base station of claim 23, wherein the receiver receiving the paging message further carries a Tracking Area Identity (TAI) list of the UE.

25. The base station of claim 24, wherein the transmitter is configured to forward the paging message to a transmission point of a corresponding NR network according to the MAI list.

26. The base station of claim 23, wherein the receiver is further configured to receive an attach request message sent by the UE, and wherein the attach request message comprises an NR capability indication of the UE.

27. The base station of claim 23, wherein the receiver is further configured to receive an attach request message sent by a transmission point of an NR network;

the processor is further configured to add NR capability indication information of the UE in the attach request message.

28. The base station of claim 23, wherein the transmitter is further configured to transmit a capability query message to the UE;

the receiver is further configured to receive NR capability indication information fed back by the UE; the NR capability indication information is used for indicating that the UE supports an NR network;

the transmitter is further configured to transmit the NR capability indication information of the UE to the core network device;

the receiver is further configured to receive an update message returned by the core network device; and the update message carries the MAI list or the MAI list and the TAI list for the UE by the core network equipment according to the NR capability indication information of the UE.

29. The base station according to any of claims 23 to 28, wherein the processor is further configured to obtain cell identities of all NR cells managed by a transmission point of an NR network having an interface with the base station and an MAI corresponding to each NR cell;

the transmitter is further configured to send an S1 interface establishment request message to the core network device; the S1 interface establishment request message includes cell identifiers of all NR cells managed by a transmission point of an NR network having an interface with the base station and an MAI corresponding to each NR cell;

the receiver is further configured to receive an S1 interface setup response message returned by the core network device.

30. A core network device, comprising: a memory storing program instructions, a processor for controlling execution of the program instructions, a transmitter, and a receiver;

the processor is configured to configure a Mobile Area Identity (MAI) list of an NR network for the UE according to the NR capability indication information of the UE;

31. The core network device of claim 30, wherein the processor is further configured to configure a tracking area identity, TAI, list for the UE; the attach accept message also carries the TAI list.

32. The core network device according to claim 30 or 31, wherein the receiver is further configured to receive an S1 interface setup request message sent by the base station; the S1 interface establishment request message includes cell identifiers of all NR cells managed by a transmission point of an NR network having an interface with the base station and an MAI corresponding to each NR cell;

the processor is further configured to establish an S1 interface with the base station according to the S1 interface establishment request message;