WO2017166214A1

WO2017166214A1 - Paging method, apparatus, and system

Info

Publication number: WO2017166214A1
Application number: PCT/CN2016/078158
Authority: WO
Inventors: 银宇; 阎亚丽
Original assignee: 华为技术有限公司
Priority date: 2016-03-31
Filing date: 2016-03-31
Publication date: 2017-10-05
Also published as: CN108464025B; CN108464025A

Abstract

The invention relates to the field of wireless communication technology, and specifically, to a paging method, apparatus, and system. The invention resolves a problem of a limited number of tracking area identities (TAI) being unable to meet the increasing demand of a hot spot number. The method comprises: when a plurality of nonadjacent hot spot areas in a local network are enabled to share a common tracking area identity, and upon receiving a downlink data packet notification message transmitted by a gateway apparatus, a mobile management network element determines, according to the downlink data packet notification message, a first hot spot area, and transmits to a first base station serving the first hot spot area a paging message to request the first base station to initiate paging to UE.

Description

Paging method, device and system

Technical field

The present invention relates to the field of wireless communication technologies, and in particular, to a paging method, device, and system.

Background technique

In the current mobile communication network, the service for the hotspot area is developing rapidly. In some solutions, people need to know the information of the hot spot area where the user is located, and push the message to the user, for example, if the hot spot area is a shopping mall, It is hoped that after the user enters the mall, the user pushes the promotion information according to the user's historical message record, and sends the user the welcome next visit message when the user leaves the mall; how to accurately perceive the user to meet such needs Or the events and specific time to leave the hotspot area become the primary problem.

In the prior art, the hotspot area is set as a tracking area (TA), and the TA update process is used to identify whether the user equipment (User Equipment, UE) is located in the hotspot area.

The above method can achieve the purpose of accurately detecting the event and specific time of the user entering or leaving the hotspot area by the Mobility Management Entity (MME), but the number of Tracking Area Identity (TAI) in the same network. Restricted, specifically, the TAI is a field consisting of a Public Land Mobile Network (PLMN) identity and a Tracking Area Code (TAC), where the PLMN is a network identity, TAC. It is two bytes, of which only 65534 values in the range of 0 to 0xFFFF are available. Therefore, the TAI in the same network can only have 65534 effective values, which cannot meet the demand of an increasing number of hotspot areas.

Summary of the invention

Embodiments of the present invention provide a paging method, device, and system to solve the problem that the existing TAI value is limited and cannot meet the demand of an increasing number of hotspot areas.

In order to solve the above technical problem, the present invention allows a plurality of hotspot areas that are not adjacent to each other to share the location area identifiers in the same location area, and in the case where the plurality of hotspot areas share the location area identifiers, the following technical solutions are used to page the hotspot areas. User equipment UE:

In a first aspect, the present invention provides a paging method, which is performed by a mobility management network element, and the paging method may include:

The mobile management network element receives a downlink data packet notification message sent by the gateway device, where the downlink data packet notification message is used to indicate that the gateway device receives the downlink data packet to be sent to the UE;

Determining, according to the downlink data packet notification message, the first hotspot area where the UE is located, sending a paging message to the first base station serving the first hotspot area, requesting the first base station to initiate paging to the UE;

The first hotspot area and the second hotspot area are in the same location area, and the second hotspot area and the first hotspot area are not adjacent to each other, and the first hotspot area and the second hotspot area have the same location area identifier.

It should be noted that the location area in the present invention may be preset to TA, and the location area identifier may be TAI.

In this way, in a case where the multiple hotspot areas share the same location area identifier, the hotspot area where the UE to receive the downlink data packet is located is determined, and only the base station serving the hotspot area initiates paging to the UE, and The problem that multiple hotspots share the same location area identifier solves the problem that the TAI value is limited and cannot meet the demand of an increasing number of hotspot areas. At the same time, when multiple hotspot areas share the same location area identifier, the All base stations providing services in the location area initiate paging to the UE, resulting in a problem that the paging load is aggravated and network resources are wasted.

Optionally, in an implementation manner of the first aspect, the determining, by the mobility management network element, the first hotspot area where the UE is located may include:

Obtaining, according to the downlink data packet notification message, the context of the UE, and acquiring hotspot area information served by the base station visited by the UE from the UE context;

The hot spot indicated by the hotspot area information served by the base station visited by the UE last time The area is determined as the first hotspot area in which the UE is located.

The hotspot area information may be used to identify the hotspot area, and the mobile management network element may obtain the hotspot area information in the following manner and record it in the UE context:

Sending to the UE a list of areas including at least one location area identifier;

Receiving a location area update message that is sent by the UE according to the area list, and includes a location area identifier served by the base station visited by the UE last time, and hotspot area information;

The location area identifier served by the base station visited by the UE last time and the hotspot area information are recorded to the context of the UE.

In this way, it is possible to store the location information in which the UE is located in the UE context, so as to determine the location where the UE is located according to the UE context.

Optionally, in another implementation manner of the first aspect, the mobility management network element may determine, by using the following manner, the base station where the UE is located in the first hotspot area:

Before receiving the downlink data packet notification message sent by the gateway device, receiving a registration message that is sent by the base station and includes the location area identifier and the hotspot area information;

And storing the location area identifier and the hotspot area information of the base station according to the registration message, so as to determine the base station of the first hotspot area according to the stored location identifier of the base station and the hotspot area information before paging the UE.

The location area identifier and the hotspot area information jointly work together to identify a certain hotspot area in the location area, or a base station serving a hotspot area; the hotspot area information may be the area identifier of the hotspot area where the base station is located, or , the identification information of the base station.

The identification information of the base station is used to identify the base station, and the identification information of the base station may include at least one of the following: a network protocol address IP of the base station, an identifier of the base station, a name of the base station, and a network identifier of the network where the base station is located.

The area identifier of the hotspot area where the base station is located may be pre-configured by the base station or obtained by the base station according to the detected external beacon information.

Specifically, when the hotspot area information includes the area identifier of the hotspot area where the base station is located, the location area identifier of the stored base station and the area identifier of the hotspot area where the base station is located may be searched for the same location area identifier as the first hotspot area. And the same hotspot The base station of the area information determines the found base station as the first base station.

When the hotspot area information includes the identification information of the base station, the base station having the same location area identifier as the first hotspot area may be searched according to the stored location area identifier of the base station, and the identified information is obtained in the found base station. The base station whose identification information of the hot spot area matches, determines the matched base station as the first base station.

In this way, the base station serving the first hotspot area can be determined by the foregoing method, so that the mobility management network element can only page the UE in the first hotspot area through the base station, thereby avoiding the existing process of paging the UE in the first hotspot area. The other base stations of the hotspot area that share the same location area identifier with the first hotspot area also participate in paging, resulting in aggravation of paging load and waste of network resources.

In a second aspect, an embodiment of the present invention provides a paging method, which is performed by a base station, and the method may include:

Receiving, by the mobility management network element, a paging message for requesting the base station to initiate paging to the UE,

Initiating paging to the UE according to the paging message;

The UE is in the first hotspot area, and the base station serves the first hotspot area. The first hotspot area may be in the same location area as the second hotspot area, and the second hotspot area and the first hotspot area are not adjacent. The hotspot area is the same as the location area identifier of the second hotspot area.

In this way, in the case that the multiple non-adjacent hotspot areas share the same location area identifier, the base station that provides the service for the hotspot area where the UE is located can initiate paging to the UE, which not only solves the problem that the TAI value is limited, and cannot satisfy the quantity. The problem of increasing demand of hotspots, and avoiding the fact that multiple non-adjacent hotspots share the same location area identifier, all base stations in the location area initiate paging to the UE, resulting in aggravation of paging load, network The problem of wasting resources.

Optionally, in an implementation manner of the second aspect, before the receiving, by the base station, the paging message sent by the mobility management network element, the method may further include:

Transmitting, by the mobility management network element, a registration message including the location area identifier and the hotspot area information, and the mobility management network element according to the location area identifier of the base station and the hotspot area information, A base station that provides service to the first hotspot area is determined.

In a third aspect, the embodiment of the present invention provides a mobility management network element, where the mobility management network element may include:

a receiving unit, configured to receive a downlink data packet notification message that is sent by the gateway device to instruct the gateway device to receive a downlink data packet to be sent to the user equipment UE;

a determining unit, configured to determine, according to the downlink data packet notification message received by the receiving unit, the first hotspot area where the UE is located; the first hotspot area and the second hotspot area are in the same location area, and the second hotspot area The first hot spot area is not adjacent to the first hot spot area, and the first hot spot area is the same as the location area identifier of the second hot spot area;

a sending unit, configured to send a paging message to the first base station, where the first base station includes all base stations serving the first hotspot area determined by the determining unit, where the paging message is used to request the first base station to The UE initiates a paging.

For a specific implementation manner, refer to the behavior function of the mobility management network element in the paging method provided by the first aspect or the possible implementation manner of the first aspect.

In this way, in a case where the multiple hotspot areas share the same location area identifier, the hotspot area where the UE to receive the downlink data packet is located is determined, and only the base station serving the hotspot area initiates paging to the UE, and The fact that multiple hotspots share the same location area identifier solves the problem that the TAI value is limited and cannot meet the demand of an increasing number of hotspot areas. At the same time, when multiple hotspot areas share the same location area identifier, the location is avoided. All base stations in the area initiate paging to the UE. The problem that the paging load is aggravated and the network resources are wasted.

It should be noted that the receiving unit and the sending unit in the third aspect may be integrated into a communication interface in the mobility management network element, and the implementation process of the receiving unit and the sending unit is completed by the communication interface, and the determining unit in the third aspect may A processor separately set up in the mobility management network element may also be implemented in a processor of the mobility management network element, or may be stored in the memory of the mobility management network element in the form of program code, by mobile management. A processor of the network element invokes and performs the functions of the above determining unit. The processor described herein may be a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or one or more integrated systems configured to implement embodiments of the present invention. Circuit.

In a fourth aspect, an embodiment of the present invention provides a base station, where the base station may include:

a receiving unit, configured to receive a paging message sent by the mobility management network element for requesting the base station to initiate paging to the UE;

a sending unit, configured to initiate paging to the UE according to the paging message received by the receiving unit;

The UE is in the first hotspot area, and the base station provides the first hotspot area. The first hotspot area may be in the same location area as the second hotspot area, and the second hotspot area and the first hotspot area are not adjacent. The first hot spot area is the same as the location area identifier of the second hot spot area.

In this way, in the case that the multiple non-adjacent hotspot areas share the same location area identifier, the base station that provides the service for the hotspot area where the UE is located can initiate paging to the UE, which not only solves the problem that the TAI value is limited, and cannot satisfy the quantity. The problem of increasing demand of hotspots, and avoiding the fact that multiple non-adjacent hotspots share the same location area identifier, the base station serving the hotspot area where the UE is located initiates paging to the UE, resulting in paging The paging load is aggravated and the network resources are wasted.

Specifically, the implementation manner of the base station may refer to the behavior function of the base station in the paging method provided by the second aspect or the possible implementation manner of the second aspect.

It should be noted that the receiving unit and the sending unit described in the fourth aspect may be integrated. For the communication interface in the base station, the execution process of the receiving unit and the sending unit is completed by the communication interface.

The fifth aspect, the embodiment of the present invention provides a paging system, where the paging system may include: the mobility management network element according to any one of the third aspect or the third aspect, and the fourth aspect Or the base station and the UE according to any of the implementation manners of the fourth aspect.

As can be seen from the above, the embodiment of the present invention provides a paging method, device, and system, which allow a plurality of hotspot areas that are not adjacent to each other to share a location area identifier in a same location area, and share the location area identifier in multiple hotspot areas. And after the mobile management network element receives the downlink data packet notification message sent by the gateway device, determining, according to the downlink data packet notification message, the first hotspot area where the UE is located, and sending the search to the first base station serving the first hotspot area. The message is sent to the first base station to initiate paging to the UE. In this way, the problem that the TAI value is limited and the demand of the increasing number of hotspot areas cannot be satisfied by sharing the same location area identifier in multiple hotspot areas, and at the same time, when multiple hotspot areas share the same location area identifier, Only when the base station serving the hotspot area in which the UE is located initiates paging to the UE, and avoids that multiple hotspot areas share the same location area identifier, all base stations in the location area initiate paging to the UE, resulting in paging. The load is aggravated and the network resources are wasted.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

FIG. 1 is a schematic diagram of a plurality of hotspot areas sharing TAI;

2 is a schematic diagram of a network architecture according to an embodiment of the present invention;

3 is a schematic structural diagram of a network architecture according to an embodiment of the present invention;

FIG. 4 is a flowchart of a paging method according to an embodiment of the present invention;

FIG. 5 is a structural diagram of a mobility management network element 30 according to an embodiment of the present invention;

FIG. 6 is a structural diagram of a base station 40 according to an embodiment of the present invention;

FIG. 7 is a structural diagram of a paging system according to an embodiment of the present invention.

detailed description

In the embodiment of the present invention, multiple non-adjacent hotspot areas in the local network are allowed to share the same hotspot area in the local network, in order to solve the problem that the tracking area identifier (TAI) is limited in the same network and cannot meet the increasing number of hotspot areas. TAI, for example, FIG. 1 is a schematic diagram of a tracking area identifier (TAI) shared by multiple hotspot areas. As shown in FIG. 1, hotspot area 1, hotspot area 2, and hotspot area 3 are in the same mobility management entity ( Within the service scope of the Mobility Management Entity (MME), the hotspot area 1 and the hotspot area 3 are located in the outdoor coverage tracking area list 1, and the hotspot area 2 is located in the outdoor coverage tracking area list 5, the hotspot area 1, the hotspot area 2, and the hotspot area. 3 is a separate Tracking Area (TA), which shares the identifier TAI60001. In this way, some hotspot areas can share the same TAI to solve some problems caused by limited TAI values.

However, when multiple hotspot areas share the same TAI, the following problem may occur: the MME learns the base station information of the service hotspot area by using the TAI identifier in the registration message reported by the base station, when multiple hotspot areas share the same TAI. The MME learns the base stations in the multiple hotspot areas that share the same TAI. When the MME needs to page the user equipment (User Equipment, UE) in one of the hotspot areas, the MME will send multiple hotspot areas to the shared TAI. All of the underlying base stations send messages, and the base stations send paging messages to the user equipment, thus increasing the paging load of the base stations of other hotspot areas (hotspot areas where the user equipment does not exist). For example, in FIG. 1, the serving base stations of the three hotspots register with the MME and report the TAI supported by the MME, that is, the TAI 60001, wherein the hotspot area 1 has the base station 1 and the base station 2, and the hotspot area 3 has the base station 4 and the hotspot. The MME can learn that the base station under the identifier TAI60001 includes: the base station 1, the base station 2, the base station 3, and the base station 4. When the MME initiates paging to the user equipment in the hotspot area 2, the MME will All base stations under the TAI60001: the base station 1, the base station 2, the base station 3, and the base station 4 send a paging message requesting the base stations to page the user equipment, but actually the user equipment is not in the hotspot area 1 and In the hotspot area 3, the paging messages of the base station 1, the base station 2, and the base station 4 under the hotspot area 1 and the hotspot area 3 are completely invalid, which undoubtedly increases the network load and wastes network resources.

Based on this, in the case that the multiple non-adjacent hotspot areas are allowed to share the same TAI, the embodiment of the present invention provides a paging method, so that the MME can identify the base station of each hotspot area, and pass the hotspot area. The base station pages the UEs in the hotspot area without paging in other hotspot areas sharing the same TAI, thereby reducing network load and saving network resources.

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

2 is a schematic diagram of a network architecture according to an embodiment of the present invention, for performing the paging method provided by the present invention. As shown in FIG. 2, the network architecture may include: a mobility management network element 10, at least one base station 20, and at least one user. A device (UE), wherein the mobility management network element 10 may be an MME in FIG. 1, at least one base station 20 is within the coverage of the mobility management network element 10, and each base station 20 may separately serve a hotspot area. The non-adjacent hotspots may share the same location area identifier, and at least one user equipment may exist in each hotspot area, and the user equipment may be a user equipment in an idle state; A location area that includes a plurality of hotspot areas may be identified, and the location area identifier may be a TAI, or may be another type of identifier, which is not limited in this embodiment of the present invention.

Specifically, as shown in FIG. 3, the mobility management network element 10 in FIG. 2 may include: a communication interface 1011, a processor 1012, a memory 1013, and at least one communication bus 1014. The communication bus 1014 may be used to implement the communication interface 1011. The connection between the device 1012 and the memory 1013 and the mutual communication; the base station 20 in FIG. 2 may include: a communication interface 2011, a processor 2012, a memory 2013, and at least one communication bus 2014, which may be used to implement the communication interface 2011, Processor 2012 and memory Connections between 2013 and mutual communication.

The communication interface 1011 and the communication interface 2011 can be used for data interaction with an external network element. For example, the communication interface 1011 can transmit and receive information with the base station 20. The communication interface 2011 can send and receive information between the mobile management network element 10. .

The processor 1012 and the processor 2012 may be a central processing unit (CPU), may be an Application Specific Integrated Circuit (ASIC), or be configured to implement an embodiment of the present invention. One or more integrated circuits, such as one or more digital singular processors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs).

The memory 1013 and the memory 2013 may be a volatile memory such as a random-access memory (RAM) or a non-volatile memory such as a read-only memory (read). -only memory, ROM), flash memory, hard disk drive (HDD) or solid-state drive (SSD); or a combination of the above types of memory.

The communication bus 1014 and the communication bus 2014 can be divided into an address bus, a data bus, a control bus, etc., and can be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus, or an extended industry. Extended Industry Standard Architecture (EISA) bus, etc. For ease of representation, only one thick line is shown in Figure 3, but it does not mean that there is only one bus or one type of bus.

The communication interface 1011 is configured to receive a downlink data packet notification message sent by the gateway device, where the downlink data notification message is used to indicate that the gateway device receives the downlink data packet to be sent to the UE.

The processor 1012 may be configured to determine, according to the downlink data packet notification message, the first hotspot area where the UE is located after the communication interface 1011 receives the downlink data packet notification message, where the first hotspot area and the second hotspot area may be located. The same location area, and the second hotspot area and the first hotspot area are not adjacent to each other, and the first hotspot area and the second hotspot The location area identifier of the area is the same.

The communication interface 1011 may be further configured to send, after the processor 1012 determines the first hotspot area where the UE is located, to the communication unit 2011 of the base station serving the first hotspot area, requesting the base station to initiate paging to the UE. Paging message.

The communication unit 2011 can be configured to initiate paging to the UE after receiving the paging message sent by the communication interface 1011.

In this case, in the case where the existing TAI value is limited, multiple non-adjacent hotspot areas are allowed to share the same location area identifier, and in a scenario where multiple non-adjacent hotspot areas share the same location area identifier, The mobile management network element determines the hotspot area where the UE that is to receive the downlink data packet is located, and the base station of the hotspot area only initiates paging to the UE, and avoids that multiple non-adjacent hotspot areas share the same location area identifier, and all hotspots are passed. The base station of the area initiates paging to the UE, causing the paging load to be aggravated and the network resources to be wasted.

Specifically, the processor 1012 can be configured to:

Determining the context of the UE according to the downlink packet notification message, obtaining the hotspot area information served by the base station that the UE visited last time, and determining the hotspot area indicated by the hotspot area information served by the base station visited by the UE as the first hotspot area. .

Before the processor 1012 searches for the context of the UE according to the downlink data packet notification message, the communication interface 1011 can also be used to:

Sending, to the UE, a zone list, where the zone list includes at least one location zone identifier;

Receiving a location area update message sent by the UE according to the area list, where the location area update message includes: a location area identifier served by the base station visited by the UE last time, and hotspot area information;

The processor 1012 is further configured to record the location area identifier served by the base station visited by the UE and the hotspot area information to the context of the UE in the memory 1014.

Specifically, before the communication interface 1011 receives the downlink data packet notification message sent by the gateway device, the communication interface 2011 can also be used to:

Transmitting to the communication interface 1011 of the mobility management network element 10 includes a location area identifier and Registration message of hotspot area information;

The communication interface 1011 is further configured to: receive a registration message sent by the communication interface 2011;

The processor 1012 is further configured to: after the communication interface 1011 receives the registration message, store the location area identifier and the hotspot area information of the base station in the memory 1013 according to the registration message.

Further, the processor 1012 is further configured to: before the communication interface 1011 sends the paging message to the base station serving the first hotspot area, according to the location area identifier and the hotspot area information of the stored base station in the memory 1014. The base station is determined.

Specifically, the hot spot area information includes: an area identifier of the hot spot area where the base station is located, or identification information of the base station.

When the hotspot area information includes the area identifier of the hotspot area where the base station is located, the processor 1012 may be configured to:

Searching for the base station having the same location area identifier and the same hotspot area information as the first hotspot area according to the location area identifier of the base station stored in the memory 1014 and the area identifier of the hot spot area in which the base station is located, determining the found base station as First base station.

When the hotspot area information includes the identification information of the base station, the processor 1012 may be specifically configured to:

Searching for a base station having the same location area identifier as the first hotspot area according to the location area identifier of the base station already stored in the memory 1014, and obtaining, in the found base station, the base station whose identification information matches the identification information of the first hotspot area. The matching base station is determined as the first base station.

It should be noted that the foregoing mobility management network element 10 may be specifically configured to perform the steps of the mobile management network element in the following Embodiment 1. The foregoing base station 20 may be specifically configured to perform the steps of the base station in the following Embodiment 1, and the steps or terms involved may be used. Refer to the related description in the first embodiment, and details are not described herein again.

For convenience of description, the following embodiment 1 shows and describes in detail the process of the paging method provided by the present invention, wherein the steps shown may also be in a group. Executed in the computer system that executes the instructions. Moreover, although logical sequences are shown in the figures, in some cases the steps shown or described may be performed in a different order than the ones described herein.

Embodiment 1

FIG. 4 is a flowchart of a paging method according to an embodiment of the present invention, which is applied to the network architecture shown in FIG. 2, and is used for paging a UE in a first hotspot area, where the first hotspot area and the second hotspot area are In the same location area, the second hotspot area is not adjacent to the first hotspot area, and the first hotspot area is the same as the location area identifier of the second hotspot area; as shown in FIG. 4, the method may include the following steps:

S101: The gateway device sends a downlink data packet notification message to the mobility management network element.

The gateway device may be any one of the following: a Packet Data Network Getway (P-GW) and a Serving Gateway (S-GW).

The mobility management network element may be a mobility management entity (MME), and may also be a core network element that needs to communicate with the UE under the base station by the base station, which is not limited in this embodiment of the present invention.

The downlink data packet notification message may be used to indicate that the gateway device receives the downlink data packet to be sent to the UE. It should be noted that, in the embodiment of the present invention, the link from the gateway device to the mobility management network element, the mobility management network element to the base station, and the base station to the UE may be referred to as a downlink, and the data to be sent on the downlink. The packet is called a downstream packet.

S102: The mobility management network element receives the downlink data packet notification message sent by the gateway device, and determines, according to the downlink data packet notification message, the first hotspot area where the UE is located.

S103: The mobility management network element sends a paging message to the first base station serving the first hotspot area, where the paging message is used to request the first base station to initiate paging to the UE.

The first base station may be a set of all base stations serving the first hotspot area.

S104: The first base station receives the paging message sent by the mobility management network element, and initiates paging to the UE according to the paging message.

For example, in FIG. 1, when the mobility management network element receives the downlink data packet sent to the UE under the hotspot area 1, the context of the UE may be queried to determine that the UE is in the hotspot area. In the domain 1, the paging is initiated to the base station 1 and the base station 2 in the hotspot area 1, and the base station 1 and the base station 2 initiate paging to the UE, and the MME is not required to all the base stations under the TAI 60001: the base station 1, the base station 2, the base station 3, and The base station 4 sends a paging message requesting the base stations to page the user equipment.

In this case, in a case where the location identifiers are shared by the multiple non-adjacent hotspots, the mobility management network element identifies the base station serving the hotspot area in which the UE is located, and only the base station of the hotspot area pages the UE, instead of Initiating paging in other hotspot areas sharing the same location area identifier reduces the paging load of the base stations in other hotspot areas, thereby saving network resources.

As can be seen from the above, the embodiment of the present invention provides a paging method, which allows the first hotspot area in the same location area and not adjacent to share the same location area identifier, and when the mobile management network element receives the gateway After the downlink data packet notification message sent by the device, determining, according to the downlink data packet notification message, the first hotspot area where the UE is located, and sending a paging message to the first base station serving the first hotspot area, requesting the first base station A page is initiated to the UE. In this way, the problem that the TAI value is limited and the demand of the increasing number of hotspot areas cannot be satisfied by sharing the same location area identifier in multiple hotspot areas, and at the same time, when multiple hotspot areas share the same location area identifier, Only when the base station serving the hotspot area in which the UE is located initiates paging to the UE, and avoids that multiple hotspot areas share the same location area identifier, all base stations in the location area initiate paging to the UE, resulting in paging. The load is aggravated and the network resources are wasted.

Optionally, in S102, according to the downlink data packet notification message, determining that the first hotspot area where the UE is located may include:

The hotspot area indicated by the hotspot area information served by the base station visited by the UE is determined as the first hotspot area where the UE is located.

It can be understood that the downlink data packet notification message may include the identifier information of the UE, and the mobility management network element may find the context of the UE according to the identifier information of the UE, or The line packet notification message carries a Tunnel Endpoint Identifier (TEID) or a bearer ID, and the context of the UE is found according to the TEID or the bearer ID.

Further, before the context of the UE is searched according to the downlink packet notification message, the method may further include:

Receiving, by the UE, a location area update message that is sent according to the area list, where the location area update message includes: a location area identifier served by the base station that the UE visited last time, and hotspot area information;

Recording a location area identifier served by the base station that the UE visited last time, and hotspot area information to the context of the UE.

It should be noted that, in the various embodiments of the present invention, the location area update message is used to indicate the update of the location area of the UE, and may be a tracking area update message or a routing area update message, which is not limited.

Specifically, the UE listens to the cell broadcast, and the cell broadcast carries the location area identifier. If the location area identifier carried by the cell broadcast is not included in the area list, the UE sends a tracking area update message to the mobility management network element, where the tracking area update message includes: The location area identifier served by the base station visited by the UE last time, and the hotspot area information.

Optionally, before the mobile management network element receives the downlink data packet notification message sent by the gateway device, the method further includes:

The base station sends a registration message to the mobility management network element, where the registration message may include a location area identifier and hotspot area information of the hotspot area where the base station is located;

The mobility management network element receives the registration message sent by the base station, and stores the location area identifier and the hotspot area information of the base station according to the registration message.

The registration message may be a message sent to the mobility management network element when the base station establishes a connection registration with the mobility management network element.

The location area identifier may be used to identify the location area, and the hotspot area information may be used to confirm the hotspot area in the location area. Optionally, the hotspot area information may include: an area identifier of the hotspot area where the base station is located, or identification information of the base station.

The area identifier of the hotspot area in which the base station is located is used to uniquely identify the hotspot area in the location area. The area identifier of the hotspot area may be pre-configured by the base station, or may be obtained by the base station according to the detected external beacon information.

The identification information of the base station includes at least one of the following: an Internet Protocol (IP) address of the base station, an identifier of the base station, a name of the base station, and a network identifier of the network where the base station is located (eg, a Public Land Mobile Network (PLMN) Identification); the identity of the base station and the name of the base station are both used to identify the base station.

Further, the method further includes: before the mobile management network element sends the paging message to the first base station, the method further includes:

The mobility management network element determines the first base station according to the location area identifier and the hotspot area information of the stored base station.

Specifically, when the hotspot area information includes the area identifier of the hotspot area where the base station is located, the determining the first base station according to the location area identifier of the base station and the hotspot area information may include:

And searching, according to the stored location identifier of the base station and the area identifier of the hotspot area where the base station is located, a base station having the same location area identifier and the same hotspot area information as the first hotspot area;

The found base station is determined as the first base station.

Still taking FIG. 1 as an example, it is assumed that the area identifier of the hotspot area 1 is A, the area identifier B of the hotspot area 2, and the area identifier of the hotspot area 3 is C, and the location area identifier shared by the three hotspot areas is TAI1, then the base station 1 and the registration message reported by the base station 2 includes: TAI1+A, and the registration message reported by the base station 3 includes: TAI1+B, and the registration message reported by the base station 4 includes: TAI1+C, after the MME receives the registration message, the stored base station The location area identifier and the area identifier of the hotspot area where the base station is located are as shown in the following Table 1. In this case, if the location area identifier of the first hotspot area is TAI1 and the area identifier of the first hotspot area is B, according to Table 1, it can be known that: The base station having the same location area identifier and area identifier in the first hot spot area is the base station 3, and may send a paging message to the base station 3, and the base station 3 initiates paging to the UE.

Table 1

	注册消息Registration message
基站1Base station 1	TAI1+ATAI1+A
基站2Base station 2	TAI1+ATAI1+A
基站3Base station 3	TAI1+BTAI1+B
基站4Base station 4	TAI1+CTAI1+C

Specifically, when the hotspot area information includes the identification information of the base station, determining the first base station according to the location area identifier of the base station and the hotspot area information may include:

And searching, according to the location area identifier of the stored base station, a base station having the same location area identifier as the first hotspot area;

Obtaining, in the found base station, a base station whose identification information matches the identification information of the first hot spot area;

The matched base station is determined as the first base station.

As shown in FIG. 1 , the hot spot area 1 , the hot spot area 2 , and the hot spot area 3 share the location area identifier TAI60001. At this time, if the location area identifier of the first hot spot area is also TAI60001, the first hotspot area may be determined. The base stations having the same location area identifier are: base station 1, base station 2, base station 3, and base station 4. The identification information of the base station 1, the base station 2, the base station 3, and the base station 4 can be matched with the identification information of the first hotspot area, respectively. If the identification information of the base station 3 matches the identification information of the first hot spot area, it is determined that the base station 3 is the first base station.

The identification information of the first hotspot area may be specially planned by the mobile management network element in advance according to the needs, which is not limited by the embodiment of the present invention.

Optionally, the identification information of the first hotspot area may include at least one of the following: a region coding range, a network identifier (eg, a PLMN identifier), an IP address range, an eNodeB ID range, and a specially planned base station name. (eNodeB Name); The area code may be a tracking area coded TAC.

The identification information of the base station includes at least one of the following: an IP address of the base station, an identifier of the base station, a name of the base station, and a network identifier of the network where the base station is located. Therefore, in the embodiment of the present invention, the identification information and the first hotspot area are searched. Identification information matching base Stations can include:

1) Find a base station whose identification information matches the identification information of the first hot spot area according to the area coding range planned by the mobility management network element for the first hot spot area.

Optionally, if the area code of the base station is included in the area coding range pre-planned by the mobility management network element, determining that the identification information of the base station matches the identification information of the first hot spot area;

For example, if the area code TAC of the first hot spot area is 60000 to 65533 and the area code TAC of the base station 1 is 60001, it is determined that the identification information of the base station 1 matches the identification information of the first hot spot area, and thus the base station 1 can be determined. It is the first base station.

It should be noted that, since the location area identifier of the base station may be composed of the area coded TAC and the network identifier (eg, PLMN) of the network where the base station is located, the area code of the base station may be based on the location area identifier of the base station and the base station. The network identity of the network is obtained.

2) Find a base station whose identification information matches the identification information of the first hot spot area according to the network identifier planned by the mobility management network element for the first hot spot area.

Optionally, if the network identifier of the network where the base station is located is the same as the network identifier of the first hotspot area, determining that the identification information of the base station matches the identification information of the first hotspot area;

For example, if the PLMN identity of the first hotspot area is PLMN1 and the PLMN of the network where the base station 1 is located is also PLMN1, it is determined that the identification information of the base station 1 matches the identification information of the first hotspot area, and thus the base station 1 can be determined to be the first base station. .

3) searching for a base station whose identification information matches the identification information of the first hot spot area according to the IP range planned by the mobility management network element for the first hot spot area;

For example, if the IP address of the base station and the IP address in the IP address range have the same IP address network segment prefix, it is determined that the identification information of the base station matches the identification information of the first hot spot area, and then the base station is determined to be the first base station.

4) searching, according to the base station identification range planned by the mobility management network element for the first hotspot area, the base station that matches the identification information with the identification information of the first hotspot area;

For example, if the base station identifier in the registration message reported by the base station is included in the identifier of the base station, the identification information of the base station is determined to match the identification information of the first hotspot area. It can be determined that the base station is the first base station.

5) searching for a base station whose identification information matches the identification information of the first hot spot area according to the base station name planned by the mobility management network element for the first hot spot area;

For example, if the pre-planned base station name includes the special string "_BZ_", if the base station name in the registration message reported by the base station also includes the special string "_BZ_", the identification information of the base station and the first hot spot area are determined. The identification information is matched, and then the base station can be determined to be the first base station.

Embodiment 2

FIG. 5 is a structural diagram of a mobility management network element 30 according to an embodiment of the present invention, which is used to perform the process performed by the mobility management network element in the first embodiment. As shown in FIG. 5, the mobility management network element 30 may include:

The receiving unit 301 is configured to receive a downlink data packet notification message sent by the gateway device, where the downlink data packet notification message is used to indicate that the gateway device receives the downlink data packet to be sent to the user equipment UE.

The determining unit 302 is configured to determine, according to the downlink data packet notification message received by the receiving unit 301, the first hotspot area where the UE is located; the first hotspot area and the second hotspot area are in the same location area, and the second hotspot area and the second A hot spot area is not adjacent, and the first hot spot area and the second hot spot area have the same location area identifier.

The sending unit 303 is configured to send a paging message to the first base station, where the first base station includes all base stations serving the first hotspot area determined by the determining unit 302, and the paging message is used to request the first base station to initiate paging to the UE. .

Further, before the receiving unit 301 receives the downlink data packet notification message sent by the gateway device, the receiving unit 301 is further configured to:

Receiving a registration message sent by the base station, where the registration message includes a location area identifier and hotspot area information;

As shown in FIG. 5, the mobility management network element 30 may further include:

The storage unit 304 is configured to store the location area identifier and the hotspot area information of the base station according to the registration message.

The determining unit 302 can also be used to:

Before the sending unit 303 sends the paging message to the first base station, the first base station is determined according to the location area identifier of the base station and the hotspot area information.

The hotspot area information includes: an area identifier of the hotspot area where the base station is located, or an identification information of the base station; the identification information of the base station includes at least one of the following: a network protocol address IP of the base station, an identifier of the base station, a name of the base station, and a base station Network identity of the network.

The area identifier of the hot spot area where the base station is located is pre-configured by the base station; or is obtained by the base station according to the external beacon information that is heard.

Specifically, when the hotspot area information includes the area identifier of the hotspot area where the base station is located, the determining unit 302 may be configured to:

And searching for a base station having the same location area identifier and the same hotspot area information as the first hotspot area according to the stored location identifier of the base station and the area identifier of the hotspot area where the base station is located;

The found base station is determined as the first base station.

When the hotspot area information includes the identification information of the base station, the determining unit 302 may be configured to:

Searching for a base station having the same location area identifier as the first hotspot area according to the stored location area identifier of the base station;

The matching base station is determined as the first base station.

Further, the determining unit 302 is specifically configured to:

Obtaining, according to the downlink data packet notification message, the context of the UE, and obtaining the hotspot area information served by the base station that the UE visited last time;

The hotspot area indicated by the hotspot area information served by the base station visited by the UE is determined as the first hotspot area.

The sending unit 303 can also be used to: record the hotspot area information served by the base station that the UE accesses last time to the context of the UE.

The determining unit 302 searches for the context of the UE according to the downlink data packet notification message. Before sending a zone list to the UE, the zone list includes at least one location zone identifier;

The receiving unit 301 is further configured to receive a location area update message that is sent by the UE according to the area list, where the location area update message includes: a location area identifier served by the base station visited by the UE, and hotspot area information;

The recording unit 305 is configured to record the location area identifier served by the base station that the UE accesses last time and the hotspot area information to the context of the UE.

It should be noted that the functions of the receiving unit 301 and the sending unit 303 of the mobility management network element shown in FIG. 5 of the present invention may be implemented by the communication interface 1011 in the mobility management network element 10 shown in FIG. 3; the determining unit 302, storing The function of the unit 304 and the recording unit 305 may be implemented by the processor 1012 set up separately in the mobility management network element 10 shown in FIG. 3, or may be implemented in a processor of the mobility management network element, or may be implemented by a program. The code is stored in the memory of the mobility management network element, and is called by a processor of the mobility management network element and performs the functions of the determining unit 302, the storage unit 304, and the recording unit 305; the processor described herein may be a central A Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present invention.

In addition, the mobility management network element provided by the embodiment of the present invention is used to perform the steps of the mobility management network element in the first embodiment. Therefore, the second embodiment can achieve the same effect as the paging method described in the first embodiment.

Embodiment 3

FIG. 6 is a structural diagram of a base station 40 according to an embodiment of the present invention, which is used to perform the process performed by a base station in Embodiment 1. As shown in FIG. 6, the base station 40 may include:

The receiving unit 401 is configured to receive a paging message sent by the mobility management network element, where the paging message is used to request the base station to initiate paging to the user equipment UE.

The sending unit 402 is configured to initiate paging to the UE according to the paging message received by the receiving unit 401.

It should be noted that the UE is in the first hotspot area, and the base station 40 is the first hotspot. The area provides a service, the first hotspot area may be in the same location area as the second hotspot area, and the second hotspot area and the first hotspot area are not adjacent, and the first hotspot area and the second hotspot area have the same location area identifier.

Further, the sending unit 402 is further configured to:

Before receiving the paging message sent by the mobility management network element, the receiving unit 401 sends a registration message including the location area identifier and the hotspot area information to the mobility management network element, where the mobility management network element identifies the location area identifier and the hotspot area according to the base station. Information, determining the base station 40 that serves the first hotspot area.

The registration message may be a message that is sent to the mobility management network element when the base station establishes a connection registration with the mobility management network element. It can be understood that, in the embodiment of the present invention, all base stations under the coverage of the mobility management network element are in the mobility management. When a network element establishes a connection registration, it can send a registration message to the mobility management network element.

The hotspot area information may include an area identifier of a hotspot area in which the base station 40 is located, or identification information of the base station 40.

The identification information of the base station 40 may include at least one of the following: a network protocol address IP of the base station 40, an identifier of the base station 40, a name of the base station 40, and a network identifier of a network where the base station 40 is located.

The area identifier of the hotspot area in which the base station 40 is located may be pre-configured by the base station 40 or obtained by the base station 40 based on the intercepted external beacon information.

It should be noted that the function of the receiving unit 401 of the base station shown in FIG. 6 of the present invention may be implemented by the communication interface 2011 in the base station 20 shown in FIG. 3, and the processor 2012 performs the behavior function of the sending unit 402, specifically, The processor 2012 initiates paging to the UE through the transceiver of the base station 20.

In addition, the base station provided by the embodiment of the present invention is used to perform the steps of the base station in the first embodiment. Therefore, the third embodiment can achieve the same effect as the paging method of the first embodiment.

Embodiment 4

FIG. 7 is a structural diagram of a paging system according to an embodiment of the present invention. As shown in FIG. 7, the paging system may include: a mobility management network element 30 and a base station 40;

The mobile management network element 30 is used to perform the steps of the mobile management network element in the first embodiment, and may be specifically the mobile management network element 30 in the second embodiment, which is not described herein again; The step of the base station in the first embodiment may be specifically the base station 40 in the third embodiment, and details are not described herein again.

The above system may further include a UE, and the UE may be the UE described in Embodiment 1.

As can be seen from the above, the embodiment of the present invention provides a paging system. When a plurality of non-adjacent hotspot areas in the local network are allowed to share the same location area identifier, the mobility management network element receives the downlink sent by the gateway device. After the data packet notification message, determining, according to the downlink data packet notification message, the first hotspot area where the UE is located, and sending a paging message to the first base station serving the first hotspot area, requesting the first base station to the UE Initiate a page. In this way, the problem that the TAI value is limited and the demand of the increasing number of hotspot areas cannot be satisfied by sharing the same location area identifier in multiple hotspot areas, and at the same time, when multiple hotspot areas share the same location area identifier, Only when the base station serving the hotspot area in which the UE is located initiates paging to the UE, and avoids that multiple hotspot areas share the same location area identifier, all base stations in the location area initiate paging to the UE, resulting in paging. The load is aggravated and the network resources are wasted.

A person skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working process of the above-mentioned unit and system can refer to the corresponding process in the foregoing method embodiments, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division, and the actual implementation may have another division manner, such as multiple units or groups. Pieces can be combined or integrated into another system, or some features can be ignored or not executed.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be physically separate, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

The above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium. The software functional units described above are stored in a storage medium and include instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform portions of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, and the program code can be stored. Medium.

A person of ordinary skill in the art may understand that all or part of the steps of the foregoing embodiments may be completed by a program to instruct related hardware (for example, a processor), and the program may be stored in a computer readable storage medium. The storage medium may include a read only memory, a random access memory, a magnetic disk or an optical disk, or the like.

It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not limited thereto; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that The technical solutions described in the foregoing embodiments are modified, or the equivalents of the technical features are replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

A paging method is performed by a mobility management network element, and includes:

Receiving, by the gateway device, a downlink data packet notification message, where the downlink data packet notification message is used to indicate that the gateway device receives the downlink data packet to be sent to the user equipment UE;

Determining, according to the downlink data packet notification message, a first hotspot area where the UE is located; the first hotspot area and the second hotspot area are in the same location area, and the second hotspot area and the first hotspot The area is not adjacent, and the first hot spot area is the same as the location area identifier of the second hot spot area;

Sending a paging message to the first base station, where the first base station includes all base stations serving the first hotspot area, and the paging message is used to request the first base station to initiate paging to the UE.
The method according to claim 1, wherein before the receiving the downlink packet notification message sent by the gateway device, the method further includes:

Receiving a registration message sent by the base station, where the registration message includes a location area identifier and hotspot area information;

And storing, according to the registration message, a location area identifier and hotspot area information of the base station.
The method according to claim 2, wherein the hotspot area information comprises: an area identifier of a hotspot area in which the base station is located; or identification information of the base station.
The method according to claim 3, wherein the identification information of the base station comprises at least one of: a network protocol address IP of the base station, an identifier of the base station, a name of the base station, and a location of the base station Network identity of the network.
The method according to claim 3, wherein the area identifier of the hot spot area in which the base station is located is pre-configured by the base station; or is obtained by the base station according to the detected external beacon information.
The method according to any one of claims 2 to 5, wherein before the sending the paging message to the first base station, the method further includes:

Determining the first base according to the location area identifier and the hotspot area information of the base station station.
The method according to claim 6, wherein the hotspot area information includes an area identifier of a hotspot area in which the base station is located; and the first base station is determined according to the location area identifier and the hotspot area information of the base station, include:

And searching, according to the stored location identifier of the base station and the area identifier of the hotspot area where the base station is located, a base station having the same location area identifier and the same hotspot area information as the first hotspot area;

The found base station is determined as the first base station.
The method according to claim 6, wherein the hotspot area information includes the identification information of the base station; the determining the first base station according to the location area identifier and the hotspot area information of the base station, including:

And searching, according to the location area identifier of the stored base station, a base station having the same location area identifier as the first hotspot area;

Obtaining, in the found base station, a base station whose identification information matches the identification information of the first hot spot area;

The matched base station is determined as the first base station.
The method according to any one of claims 1-8, wherein the determining, according to the downlink data packet notification message, the first hotspot area in which the UE is located, includes:

Determining, according to the downlink data packet notification message, a context of the UE, and obtaining hotspot area information served by the base station that the UE visited last time;

Determining, as the first hotspot area, the hotspot area indicated by the hotspot area information served by the base station visited by the UE last time.
The method according to claim 9, wherein before the finding the context of the UE according to the downlink data packet notification message, the method further includes:

Sending, to the UE, a zone list, where the zone list includes at least one location zone identifier;

Receiving, by the UE, a location area update message sent according to the area list, where the location area update message includes: a location area identifier served by the base station visited by the UE last time Knowledge and hotspot information;

Recording a location area identifier served by the base station that the UE visited last time, and hotspot area information to the context of the UE.
A paging method is performed by a base station, and the method includes:

Receiving, by the mobile management network element, a paging message, where the paging message is used to request the base station to initiate paging to the user equipment UE, where the UE is in a first hotspot area, and the base station provides the first hotspot area The first hotspot area and the second hotspot area are in the same location area, and the second hotspot area and the first hotspot area are not adjacent to each other, and the first hotspot area and the second hotspot area are The location area identifier is the same;

And initiating paging to the UE according to the paging message.
The method according to claim 11, wherein before receiving the paging message sent by the mobility management network element, the method further includes:

Sending a registration message to the mobility management network element, where the registration message includes a location area identifier and hotspot area information, where the registration message is used by the mobility management network element to determine according to the location area identifier and the hotspot area information of the base station. The base station serving the first hotspot area.
The method according to claim 12, wherein the hot spot area information comprises:

The area identifier of the hot spot area where the base station is located; or the identification information of the base station.
The method according to claim 13, wherein the identification information of the base station comprises at least one of: a network protocol address IP of the base station, an identifier of the base station, a name of the base station, and a location of the base station Network identity of the network.
The method according to claim 13, wherein the area identifier of the hot spot area in which the base station is located is pre-configured by the base station; or is obtained by the base station according to the intercepted external beacon information.
A mobility management network element, comprising:

a receiving unit, configured to receive a downlink data packet notification message sent by the gateway device, where the downlink data packet notification message is used to indicate that the gateway device receives the downlink data packet to be sent to the user equipment UE;

a determining unit, configured to determine, according to the downlink data packet notification message received by the receiving unit, a first hotspot area where the UE is located; the first hotspot area and the second hotspot area are in the same location area, and the The second hotspot area is not adjacent to the first hotspot area, and the first hotspot area is the same as the location area identifier of the second hotspot area;

a sending unit, configured to send a paging message to the first base station, where the first base station includes all base stations that provide services for the first hotspot area determined by the determining unit, and the paging message is used to request the first The base station initiates paging to the UE.
The mobility management network element of claim 16 wherein:

The receiving unit is further configured to: before receiving the downlink data packet notification message sent by the gateway device, receive a registration message sent by the base station, where the registration message includes a location area identifier and hotspot area information;

The mobility management network element further includes:

And a storage unit, configured to store, according to the registration message, a location area identifier and hotspot area information of the base station.
The mobile management network element according to claim 17, wherein the hotspot area information comprises:

The area identifier of the hot spot area where the base station is located; or the identification information of the base station.
The mobility management network element according to claim 18, wherein the identification information of the base station comprises at least one of: a network protocol address IP of the base station, an identifier of the base station, a name and a location of the base station, The network identifier of the network where the base station is located.
The mobility management network element according to claim 18, wherein the area identifier of the hotspot area in which the base station is located is pre-configured by the base station; or is obtained by the base station according to the intercepted external beacon information.
The mobility management network element according to any one of claims 17 to 20, wherein the determining unit is further configured to:

Before the sending unit sends the paging message to the first base station, determining the first base station according to the location area identifier and the hotspot area information of the base station.
The mobility management network element according to claim 21, wherein said said The hotspot area information includes the area identifier of the hotspot area where the base station is located; the determining unit is specifically configured to:

And searching, according to the stored location identifier of the base station and the area identifier of the hotspot area where the base station is located, a base station having the same location area identifier and the same hotspot area information as the first hotspot area;

The found base station is determined as the first base station.
The mobility management network element according to claim 21, wherein the hotspot area information includes identification information of a base station; and the determining unit is specifically configured to:

And searching, according to the location area identifier of the stored base station, a base station having the same location area identifier as the first hotspot area;

Obtaining, in the found base station, a base station whose identification information matches the identification information of the first hot spot area;

The matched base station is determined as the first base station.
The mobile management network element according to any one of claims 16 to 23, wherein the determining unit is specifically configured to:

Determining, according to the downlink data packet notification message, a context of the UE, and obtaining hotspot area information served by the base station that the UE visited last time;

Determining, as the first hotspot area, the hotspot area indicated by the hotspot area information served by the base station visited by the UE last time.
A mobility management network element according to claim 24, wherein

The sending unit is further configured to: before the determining, by the determining unit, the context of the UE according to the downlink data packet notification message, send a region list to the UE, where the region list includes at least one location region identifier;

The receiving unit is further configured to receive a location area update message that is sent by the UE according to the area list, where the location area update message includes: a location area identifier served by the base station visited by the UE, and a hotspot area. information;

The mobility management network element further includes:

And a recording unit, configured to record a location area identifier served by the base station that the UE accesses last time, and hotspot area information to a context of the UE.
A base station, the base station includes:

a receiving unit, configured to receive a paging message sent by the mobility management network element, where the paging message is used to request the base station to initiate paging to the user equipment UE, where the UE is in a first hotspot area, and the base station is in the The first hotspot area is in the same location area as the second hotspot area, and the second hotspot area is not adjacent to the first hotspot area, the first hotspot area is The location area identifier of the second hot spot area is the same;

And a sending unit, configured to initiate paging to the UE according to the paging message received by the receiving unit.
The base station according to claim 26, wherein the sending unit is further configured to:

Before the receiving unit receives the paging message sent by the mobility management network element, sending a registration message to the mobility management network element;

The registration message includes a location area identifier and hotspot area information, where the registration message is used by the mobility management network element to determine to provide a service for the first hotspot area according to the location area identifier and the hotspot area information of the base station. The base station.
The base station according to claim 27, wherein the hotspot area information comprises:

The area identifier of the hot spot area where the base station is located; or the identification information of the base station.
The base station according to claim 28, wherein the identification information of the base station comprises at least one of: a network protocol address IP of the base station, an identifier of the base station, a name of the base station, and a location of the base station Network identity of the network.
The base station according to claim 28, wherein the area identifier of the hot spot area in which the base station is located is pre-configured by the base station; or is obtained by the base station according to the detected external beacon information.
A paging system, comprising: the mobility management network element according to any one of claims 16-25 and the base station according to any one of claims 26-30.