WO2017032332A1

WO2017032332A1 - Method and apparatus for paging terminal

Info

Publication number: WO2017032332A1
Application number: PCT/CN2016/096718
Authority: WO
Inventors: 曾清海
Original assignee: 华为技术有限公司
Priority date: 2015-08-25
Filing date: 2016-08-25
Publication date: 2017-03-02
Also published as: CN106488426B; CN106488426A

Abstract

Embodiments of the present invention provide a method and an apparatus for paging a terminal. After a first-level location registration node receives a paging message sent by a second-level location registration node, a terminal is paged according to the paging message. Because the terminal falls within a paging range of the first-level position registration node, the terminal is paged by the first-level position registration node, thereby avoiding the case in which the terminal is paged by a location registration node incapable of paging the terminal, reducing paging overheads of an air interface, and saving air-interface resources.

Description

Method and device for paging terminal

Technical field

The embodiments of the present invention relate to the field of communications technologies, and in particular, to a method and an apparatus for paging a terminal.

Background technique

When the terminal is in a connected state with the base station, the terminal is connected to the core network device through the base station, so that the core network device can track the location of the terminal. When the terminal and the base station are in an idle state, in order to save air interface resources, the air interface bearer between the terminal and the base station is released, but the core network device still needs to track the location of the terminal, so that when data is sent to the terminal, the The terminal performs communication; therefore, a plurality of tracking areas (English: Tracking Area, abbreviated as TA) are allocated in the LTE system, and each tracking area includes multiple cells, and each cell broadcasts the identity of the TA to which it belongs in the air interface. When the location update of the terminal occurs, that is, when the identifier of the received TA changes, the terminal notifies the core network device of the identifier of the received TA, and the core network device determines the TA where the terminal is located by the identifier of the TA reported by the terminal. Therefore, when the core network device determines that communication needs to be performed with the terminal, the core network device notifies each cell in the TA where the terminal is located to send a paging message to the terminal, to notify the terminal to enter the connected state.

However, in the prior art, in order to avoid frequent location update of the terminal, the range of the TA is set to be larger, that is, the number of cells included in one TA increases, but when the core network device needs to page the terminal, A paging message is sent to the terminal through more cells, which causes an increase in paging overhead of the air interface and wastes air interface resources.

Summary of the invention

The embodiments of the present invention provide a method and a device for paging a terminal, which are used to reduce the paging overhead of an air interface and save air interface resources.

In a first aspect, the present invention provides a method for paging a terminal, including:

The first level location registration node receives a paging message from the second level location registration node, The paging message includes the identification information of the terminal; the paging message is used to page the terminal, and the second-level location registration node stores the first location registration information of the terminal, where the first location registration The information includes a first correspondence between the identifier information of the terminal and the first-level location registration node, where the first correspondence is used to indicate that the terminal is in a paging range of the corresponding first-level location registration node. Inside;

The first stage location registration node pages the terminal according to the paging message.

In conjunction with the first aspect, in a first possible implementation manner of the first aspect, before the first-level location registration node receives the paging message from the second-level location registration node, the method further includes:

The first-level location registration node receives a location registration indication from the terminal, the location registration indication includes identification information of the terminal, and the location registration indication is used to indicate a location where the terminal is registered;

Transmitting, by the first-level location registration node, a first location registration request to the second-level location registration node according to the location registration indication, where the first location registration request includes identifier information of the terminal and the first The level location registration node identifies information such that the second level location registration node records the first location registration information of the terminal according to the first location registration request.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, after the first-level location registration node receives the location registration indication from the terminal, the method further includes:

The first-level location registration node records second location registration information of the terminal according to the location registration indication; the second location registration information of the terminal includes identification information of the terminal, and the second location of the terminal The registration information is used to indicate that the terminal is in a paging range of the first-level location registration node;

The first stage location registration node, before paging the terminal according to the paging message, further includes:

The first-level location registration node determines, according to the second location registration information of the terminal, that the terminal is in a paging range of the first-level location registration node.

In conjunction with the second possible implementation of the first aspect, in a third possible implementation manner of the first aspect, the first level location registration node records the second location of the terminal according to the location registration indication Registration information, including:

The first stage location registration node determines to receive, by the first cell, from the terminal The location registration indication records the second location registration information of the terminal; the second location registration information includes the identifier information of the terminal and the second corresponding relationship of the first cell, where the second correspondence is used Instructing the terminal to be in a paging range of the corresponding first cell;

Determining, by the first-level location registration node, that the terminal is in a paging range of the first-level location registration node, according to the second location registration information of the terminal, including:

Determining, by the first-level location registration node, that the terminal is in a paging range of the first cell according to the second correspondence;

The paging by the first-level location registration node according to the paging message includes:

The first stage location registration node pages the terminal in the first cell according to the paging message.

With reference to the first aspect, or the first possible implementation manner of the first aspect, the third possible implementation manner, in the fourth possible implementation manner of the first aspect, the first level location registration node is a base station.

In a second aspect, an embodiment of the present invention provides a method for paging a user equipment terminal, including:

The second-level location registration node receives a paging message, where the paging message includes identifier information of the terminal, and the paging message is used to page the terminal;

The second-level location registration node determines, according to the first location registration information of the terminal, a first-level location registration node corresponding to the identifier information of the terminal, where the first location registration information includes the terminal a first correspondence between the identifier information and the first-level location registration node, where the first correspondence is used to indicate that the terminal is in a paging range of the corresponding first-level location registration node;

The second level location registration node sends the paging message to the first level location registration node.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the second-level location registration node determines, according to the first location registration information of the terminal, a first level corresponding to the identifier information of the terminal Before the location registration node, it also includes:

Receiving, by the second-level location registration node, a first location registration request from the first-level location registration node, where the first location registration request includes identifier information of the terminal and the first-level location registration node Identification information;

The second level location registration node records the first according to the first location registration request Location registration information.

In conjunction with the first possible implementation of the second aspect, in a second possible implementation of the second aspect, the second-level location registration node receives the first location from the first-level location registration node After registering the request, it also includes:

Transmitting, by the second-level location registration node, a second location registration request to the third-level location registration node, so that the third-level location registration node records third location registration information, where the third location registration information includes the a third correspondence between the identification information of the terminal and the second-level location registration node.

In conjunction with the first possible implementation of the second aspect, in a third possible implementation of the second aspect, the second-level location registration node receives the first location from the first-level location registration node After registering the request, it also includes:

The second-level location registration node determines that the fourth location registration information of the terminal is not recorded, and the second-level location registration node sends a second location registration request to the third-level location registration node, so that the third location The third location registration information is recorded by the level location registration node, where the third location registration information includes a third correspondence between the identifier information of the terminal and the second level location registration node;

The fourth location registration information includes a fourth correspondence between the identifier information of the terminal and other first-level location registration nodes, and the upper-level location registration node of the other first-level location registration node The second-level location registration node is the same, and the second-level location registration request includes the identifier information of the terminal and the identifier information of the second-level location registration node.

With reference to the first possible implementation manner of the second aspect, in a fourth possible implementation manner of the second aspect, the second-level location registration node determines the terminal according to the first location registration information of the terminal Before the identification information corresponding to the first-level location registration node, the method further includes:

The second-level location registration node determines that the fourth location registration information of the terminal has been recorded, and the second-level location registration node updates the fourth location registration information of the terminal to the first location registration information, The fourth location registration information includes a fourth correspondence between the identifier information of the terminal and other first-level location registration nodes.

In conjunction with the fourth possible implementation of the second aspect, in a fifth possible implementation of the second aspect, the method further includes:

The second-level location registration node sends a location registration deletion request to the other first-level location registration node, where the location registration deletion request is used to instruct the other first-level location registration node to delete the location registration information of the terminal. .

With reference to the second aspect or the first possible implementation manner of the second aspect to the fifth possible implementation manner, in the sixth possible implementation manner of the second aspect, the second level The location registration node receives the paging message, including:

The second level location registration node receives the paging message from the paging node; or

The second level location registration node receives the paging message from the third level location registration node.

With reference to the second aspect or the first possible implementation manner of the second aspect, the possible implementation manner of the sixth possible implementation manner, in the seventh possible implementation manner of the second aspect, The primary location registration node is a base station.

In a third aspect, the present invention provides an apparatus for paging a terminal, where the apparatus is deployed in the first-level location registration node, and includes:

a receiving module, configured to receive a paging message from a second-level location registration node, where the paging message includes identifier information of the terminal; the paging message is used to page the terminal, and the second-level location registration The first location registration information of the terminal is stored in the node, where the first location registration information includes a first correspondence between the identifier information of the terminal and the first-level location registration node, where the first correspondence is used. And indicating that the terminal is in a paging range of the corresponding first-level location registration node;

a paging module, configured to page the terminal according to the paging message.

With reference to the third aspect, in a first possible implementation manner of the third aspect, the receiving module is further configured to receive a location registration indication from the terminal, where the location registration indication includes identifier information of the terminal, The location registration indication is used to indicate a location where the terminal is registered;

The device also includes:

a sending module, configured to send, according to the location registration indication, a first location registration request to the second-level location registration node, where the first location registration request includes identifier information of the terminal and the first-level location registration Identification information of the node, so that the second level location registration node root Recording the first location registration information of the terminal according to the first location registration request.

In conjunction with the first possible implementation of the third aspect, in a second possible implementation manner of the third aspect, the method further includes:

a recording module, configured to record second location registration information of the terminal according to the location registration indication; the second location registration information of the terminal includes identification information of the terminal, and the second location registration information of the terminal is used by Instructing the terminal to be in a paging range of the first-level location registration node;

The paging module is further configured to determine, according to the second location registration information of the terminal, that the terminal is in a paging range of the first-level location registration node.

In conjunction with the second possible implementation of the third aspect, in a third possible implementation manner of the third aspect, the recording module is specifically configured to: determine, by using the first cell, the location registration from the terminal Instructing to record the second location registration information of the terminal; the second location registration information includes the identifier information of the terminal and the second corresponding relationship of the first cell, where the second correspondence is used to indicate the The terminal is in a paging range of the corresponding first cell;

The paging module is specifically configured to: according to the second correspondence, the first-level location registration node determines that the terminal is in a paging range of the first cell; according to the paging message, in the paging message The first cell pages the terminal.

With reference to the third aspect or the first possible implementation manner of the third aspect, the third possible implementation manner, in the fourth possible implementation manner of the third aspect, the first level location registration node is a base station.

In a fourth aspect, an embodiment of the present invention provides a device for paging a user equipment terminal, where the device for paging the user equipment terminal is deployed in a second-level location registration node, including:

a receiving module, configured to receive a paging message, where the paging message includes identifier information of the terminal, where the paging message is used to page the terminal;

a processing module, configured to determine, according to the first location registration information of the terminal, a first-level location registration node corresponding to the identifier information of the terminal, where the first location registration information includes identifier information of the terminal a first correspondence of the first-level location registration node, where the first correspondence is used to indicate that the terminal is in a paging range of the corresponding first-level location registration node;

And a sending module, configured to send the paging message to the first-level location registration node.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the receiving module is further configured to receive a first location registration request from the first level location registration node, where the first location registration The request includes the identification information of the terminal and the identification information of the first-level location registration node;

The device also includes:

And a recording module, configured to record the first location registration information according to the first location registration request.

In conjunction with the first possible implementation of the fourth aspect, in a second possible implementation manner of the fourth aspect, the sending module is further configured to send a second location registration request to the third-level location registration node, so that The third-level location registration node records third location registration information, where the third location registration information includes a third correspondence between the identifier information of the terminal and the second-level location registration node.

In conjunction with the first possible implementation of the fourth aspect, in a third possible implementation manner of the fourth aspect, the sending module is further configured to determine that the fourth location registration information of the terminal is not recorded, The second-level location registration node sends a second location registration request to the third-level location registration node, so that the third-level location registration node records third location registration information, where the third location registration information includes the terminal a third correspondence between the identification information and the second-level location registration node;

In conjunction with the first possible implementation of the fourth aspect, in a fourth possible implementation manner of the fourth aspect, the receiving module is further configured to receive a first location registration from the first level location registration node. The first location registration request includes the identifier information of the terminal and the identifier information of the first-level location registration node;

The recording module is further configured to determine that the fourth location registration information of the terminal has been recorded, and the second-level location registration node updates the fourth location registration information of the terminal to the first location registration information, where The fourth location registration information includes the identification information of the terminal and other The fourth correspondence of the first level location registration node.

In conjunction with the fourth possible implementation of the fourth aspect, in a fifth possible implementation manner of the fourth aspect, the sending module is further configured to send a location registration deletion request to the other first level location registration node, The location registration deletion request is used to instruct the other first-level location registration node to delete the location registration information of the terminal.

With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, the possible implementation manner of the fifth possible implementation manner, in the sixth possible implementation manner of the fourth aspect, the receiving The module is specifically configured to receive the paging message from the paging node; or receive the paging message from the third-level location registration node.

With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, the possible implementation manner of the sixth possible implementation manner, in the seventh possible implementation manner of the fourth aspect, The primary location registration node is a base station.

The method and apparatus for paging a terminal according to an embodiment of the present invention, after receiving a paging message sent by a second-level location registration node by a first-level location registration node, paging the terminal according to the paging message. Since the terminal is in the paging range of the first-level location registration node, the terminal is logged by the first-level location registration node, thereby avoiding paging of the location registration node that cannot be paged to the terminal, thereby reducing the paging overhead of the air interface and saving Empty resources.

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 inventive labor.

1 is a schematic flowchart of Embodiment 1 of a method for paging a terminal according to the present invention;

2 is a schematic flowchart of Embodiment 2 of a method for paging a terminal according to the present invention;

3 is a schematic flowchart of Embodiment 3 of a method for paging a terminal according to the present invention;

4 is a schematic flow chart of a fourth embodiment of a method for paging a terminal according to the present invention;

5 is a schematic flowchart of Embodiment 5 of a method for paging a terminal according to the present invention;

FIG. 6 is a schematic diagram of a relationship between location registration nodes at various levels according to an embodiment of the present invention; FIG.

FIG. 7 is a schematic diagram of a first application scenario according to an embodiment of the present disclosure;

8 is a flowchart of Embodiment 6 of a method for paging a terminal according to the present invention;

FIG. 9 is a schematic diagram of a second application scenario according to an embodiment of the present disclosure;

10 is a flowchart of Embodiment 7 of a method for paging a terminal according to the present invention;

FIG. 11 is a schematic diagram of a third application scenario according to an embodiment of the present disclosure;

12 is a flowchart of Embodiment 8 of a method for paging a terminal according to the present invention;

FIG. 13 is a schematic diagram of a fourth application scenario according to an embodiment of the present disclosure;

FIG. 14 is a schematic diagram of a fifth application scenario according to an embodiment of the present disclosure;

FIG. 15 is a schematic diagram of a sixth application scenario according to an embodiment of the present disclosure;

16 is a schematic structural diagram of Embodiment 1 of an apparatus for paging a terminal according to the present invention;

17 is a schematic structural diagram of Embodiment 2 of a device for paging terminal according to the present invention;

18 is a schematic structural diagram of Embodiment 3 of an apparatus for paging a terminal according to the present invention;

FIG. 19 is a schematic structural diagram of Embodiment 4 of a device for paging terminals according to the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying 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, but not all 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.

The terms "first", "second", "third", "fourth", etc. (if present) in the specification and claims of the present invention and the above figures are used to distinguish similar objects without being used for Describe a specific order or order. It is to be understood that the data so used may be interchanged as appropriate, such that the embodiments of the invention described herein can be implemented, for example, in a sequence other than those illustrated or described herein. In addition, the terms "comprises" and "comprises" and "the" and "the" are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to Those steps or units may include other steps or units not explicitly listed or inherent to such processes, methods, products or devices.

1 is a schematic flowchart of Embodiment 1 of a method for paging a terminal according to the present invention. As shown in FIG. 1 , this embodiment is performed by a first-level location registration node, and the terminal in this embodiment refers to a target to be paged. The first-level location registration node refers to a location registration node that can directly page to the terminal, for example, the terminal is a mobile phone, the first-level location registration node can be a base station, and the terminal is a wearable device such as a smart watch, and the first-level location is registered. The node is an access point of the device, such as a mobile phone. When the terminal is a mobile small station, the first-level location level node is a wireless backhaul base station of the small station. The first level location registration node is also used to eventually page the terminal directly at the air interface. The location registration node of the first embodiment can perform the first embodiment of the present invention. The method of registering the node in the upper level of the node, the method in this embodiment may include:

S101. The first-level location registration node receives a paging message from the second-level location registration node, where the paging message includes identifier information of the terminal.

Among them, the paging message is used for paging the terminal.

If the second-level location registration node is the highest-level location registration node, the second location registration node receives the paging message from the paging node, and the paging node may be a core network device, for example, a mobility management entity (English: Mobility Management) Entity, referred to as MME, may also be other devices having paging requirements, and the present invention is not limited thereto. If the second-level location registration node is not the highest-level location registration node, the second-level location registration node receives the paging message from the third-level location registration node (ie, the upper-level location registration node), and the second-level location registration node receives the paging message. After the paging message, according to the identification information of the terminal in the paging message and the first location registration information of the terminal stored in the second-level location registration node, determining that the first-level location registration can be directly paged to the terminal The first location registration information includes a first correspondence between the identifier information of the terminal and the first-level location registration node, where the first correspondence is used to indicate that the terminal is in the paging range of the corresponding first-level location registration node. The second level location registration node transmits the paging message to the first level location registration node.

The first level location registration node receives a paging message from the second level location registration node.

S102: The first-level location registration node pages the terminal according to the paging message.

The first-level location registration node may page the terminal by sending a broadcast message or a paging message. The paging mode of the first-level location registration node is not limited by the present invention, as long as the first-level location registration node can Simply page to the terminal.

In this embodiment, after receiving the paging message from the second-level location registration node, the first-level location registration node pages the terminal according to the paging message. Second-level location registration node The first location registration information of the terminal is stored, where the first location registration information includes a first correspondence relationship that is used to indicate that the terminal is in a paging range of the corresponding first-level location registration node, and therefore, the terminal may be determined. In the paging range of the first-level location registration node, the first-level location registration node pages the terminal, avoiding the paging terminal of the location registration node that cannot be paged to the terminal, reducing the paging overhead of the air interface, and saving the air interface. Resources.

2 is a schematic flowchart of Embodiment 2 of a method for paging a terminal according to the present invention. As shown in FIG. 2, FIG. 2 is based on the embodiment shown in FIG. 1. Before executing the S101, optionally, The method includes: executing the S201 to S203, and before executing the S102, optionally, further comprising: executing S204.

S201: The first-level location registration node receives a location registration indication from the terminal.

The location registration indication includes identification information of the terminal, where the location registration indication is used to indicate a location where the terminal is registered;

S202: The first-level location registration node sends a first location registration request to the second-level location registration node according to the location registration indication.

The first location registration request includes the identifier information of the terminal and the identifier information of the first-level location registration node, and the second-level location registration node records the first location registration of the terminal according to the first location registration request. information. The first location registration information includes a first correspondence between the identifier information of the terminal and the first-level location registration node, where the first correspondence is used to indicate that the terminal is in the paging range of the corresponding first-level location registration node. The second level location registration node transmits the paging message to the first level location registration node.

S203: The first-level location registration node records the second location registration information of the terminal according to the location registration indication.

The first possible implementation manner is: the second location registration information of the terminal recorded by the first-level location registration node includes the identifier information of the terminal, and the second location registration information of the terminal is used to indicate the The terminal is within the paging range of the first level location registration node.

The second possible implementation manner is that the second location registration information of the terminal recorded by the first-level location registration node includes the identifier information of the terminal and the second corresponding relationship of the first cell, and the second correspondence relationship And configured to indicate that the terminal is in a paging range of the corresponding first cell; the first-level location registration node determines to receive the location registration indication from the terminal by using the first cell.

The paging range of the first-level location registration node may be divided into multiple cells, where the first cell refers to a cell corresponding to the paging range where the terminal is located, for example, the paging range of the base station is divided into cell 1, cell 2, and In cell 3, the mobile phone is in cell 1, then cell 1 is the first cell; when the mobile phone is used as the access point, the paging range is divided into cell 1, cell 2 and cell 3, and the smart watch is in cell 2, then cell 2 is the first cell. a cell.

S101: The first-level location registration node receives a paging message from the second-level location registration node, where the paging message includes identifier information of the terminal.

For details, refer to the detailed description of the embodiment shown in FIG. 1 , and details are not described herein again.

S204: The first-level location registration node determines, according to the second location registration information of the terminal, that the terminal is in a paging range of the first-level location registration node.

specifically,

The first possible implementation manner, corresponding to the first possible implementation manner of 203, if the second location registration information of the first-level location registration node includes the identifier of the terminal, determining that the terminal is at the first level Within the paging range of the location registration node.

a second possible implementation manner, corresponding to the second possible implementation manner in S203, the first-level location registration node determines, according to the second correspondence, that the terminal is in a paging range of the first cell; And if the second location registration information of the first-level location registration node includes the identifier information of the terminal and the second corresponding-off of the first cell, determining that the terminal is in a paging range of the first cell.

Corresponding to the first possible implementation manner in S204, the first-level location registration node pages the terminal within the paging range of the first-level location registration node.

Corresponding to the second possible implementation manner in S204, the first-level location registration node pages the terminal in the first cell.

The second possible implementation method reduces the paging overhead of the air interface and saves the air interface resources.

In this embodiment, the first-level location registration node receives the location registration indication from the terminal, and sends a first location registration request to the second-level location registration node according to the location registration indication, and records the location according to the location registration indication. a second location registration information of the terminal, receiving a paging message from the second-level location registration node, where the paging message includes the identification information of the terminal, according to the Determining the second location registration information of the terminal, determining that the terminal is in a paging range of the first-level location registration node. The first-level location registration node, according to the paging message, pages the terminal, because the first-level location registration node pages the terminal within its paging range, or pages the terminal in the first cell of the first location registration node, avoiding The location registration node paging terminal cannot be paged to the terminal, which reduces the paging overhead of the air interface and saves air interface resources.

In the foregoing embodiment, the first-level location registration node takes the base station as an example, and the terminal may select a cell that sends the location registration indication according to the preset configuration, the measured base station signal, or the base station lower cell signal. The preset configuration is sent by the network to the terminal, and may include the channel configuration used by the terminal to send the location registration indication, the shortest period of transmission, the transmitted power, and or the measurement signal resource configuration information. When the terminal meets the cell reselection threshold, the terminal enters a new cell and sends location registration indication information through the new cell. In order to reduce the number of times the location registration indication is sent, a plurality of cells may be grouped together, represented by a registration area identifier, and transmitted in a cell air interface, when the terminal receives the registration area identifier sent from the base station or the cell, and the terminal transmits the last time. When the registration area identifier of the cell where the location registration indication information is located is changed, the terminal triggers a new location registration indication transmission process, and instructs the base station that received the location registration indication to register the location of the terminal. Cells under different base stations should be assigned to different registration areas.

The terminal may also send a location registration indication to the base station according to the preset configuration, and the base station may determine whether to record the terminal location registration information by using the signal strength of the location registration indication sent by the terminal. For example, the terminal location registration indication may be a data packet carrying the terminal identification information, and may also be an uplink feature measurement signal such as a sounding reference signal, a preamble signal, or a discovery reference signal. . The location registration indication sent by the terminal may be sent in a common channel, so that multiple base stations can receive the indication at the same time, and evaluate the strength of the measured signal measurement. If the signal measurement measured by a base station is greater than the registration threshold, then Register the terminal location registration information. When the terminal is in the vicinity of the cell of multiple base stations, there may be multiple base stations that have location registration information. The base station can save the registered time and the value of the measured signal measurement amount in the location registration information. If a signal measured by a base station is less than a registration threshold or changes from a registration threshold to a registration threshold, such as a leaving event in LTE, the base station may initiate an update of the location registration information of the corresponding terminal, such as deleting the locally saved The location registration information may also send a location registration information update indication to the first-level location registration node, indicating the upper-level location registration node update bit. The registration information, such as deleting the corresponding location registration information, may be indicated by carrying the identifier corresponding to the last location registration information update message.

In the above embodiment, the identification information search area of the terminal is unique, and the designated area may be N cells, a tracking area, a public land mobile network (English: public land mobile network, PLMN for short), or globally. Wherein, the N is an integer greater than or equal to 1. When entering a new area, the terminal needs to obtain new identification information.

Optionally, the identifier information of the terminal may be the feature information of the terminal, and the feature information of the terminal is used by the network to determine the terminal by using the information. The characteristic information of the terminal may be signal sequence information (such as a sounding signal sent by the UE), or may be terminal tracking identification information (such as an ID for identifying the terminal, and may also include network information of the corresponding UE, such as PLMN information, where the location is. Area or search area information), or the International Mobile Subscriber Identity (IMI), the Temporary Mobile Subscriber Identity (TMSI) identifier, or the terminal Address information (such as L1/L2 address, or MAC address, etc.).

3 is a schematic flowchart of Embodiment 3 of a method for paging a terminal according to the present invention. This embodiment is performed by a second-level location registration node. The terminal in this embodiment refers to a target to be paged, and the first-level location registration node refers to The first location registration node may be a base station, and the first level location registration node is an access of the device. The point is like a mobile phone. When the terminal is a mobile small station, the first level location level node is a wireless backhaul base station of the small station. The first level location level node is also used to eventually page the terminal directly in the air interface. The location registration node of the first embodiment can perform the first embodiment of the present invention. The method of registering the node in the upper level of the node, the method in this embodiment may include:

S301: The second-level location registration node receives a paging message, where the paging message includes identifier information of the terminal, where the paging message is used to page the terminal.

If the second-level location registration node is the highest-level location registration node, the second location registration node receives the paging message from the paging node, and the paging node may be a core network device, such as an MME, or may have other The device of the demand is not limited to the present invention. If the second-level location registration node is not the highest-level location registration node, the second-level location registration node is from the third-level location The registration node (ie, the upper level location registration node) receives the paging message.

S302: The second-level location registration node determines, according to the first location registration information of the terminal, a first-level location registration node corresponding to the identifier information of the terminal.

That is, according to the first location information of the terminal, the first-level location registration node that can directly page to the terminal is determined.

The first location registration information includes a first correspondence between the identifier information of the terminal and the first-level location registration node, where the first correspondence relationship is used to indicate that the terminal is in the corresponding Within the paging range of the primary location registration node.

S303: The second-level location registration node sends the paging message to the first-level location registration node.

The plurality of cells may receive the location registration indication sent by the terminal to the first-level location registration node, and the first-level location registration node stores the correspondence between the identifier of the terminal and the plurality of cells; the plurality of first-level location registration nodes go to the second The level location registration node sends a first location registration request, the second level location registration node records the correspondence between the identity of the same terminal and the plurality of first level location registration nodes, and the plurality of second level location registrations are sent to the third level location registration node. The second location registration request records the correspondence between the identifier of the same terminal and the plurality of second-level location registration nodes.

When there is a plurality of first-level location registration nodes corresponding to the first location registration information, the second-level location registration node may send a paging message to the plurality of first-level location registration nodes. Alternatively, the latest registration information is selected according to the registered time stamp or the first-level location registration node that needs to be transmitted is determined according to the registered received signal strength, or the paging message is sequentially transmitted in order.

In this embodiment, the second-level location registration node receives the paging message, and determines the first-level location registration node corresponding to the identifier information of the terminal according to the first location registration information of the terminal, to the first-level location. The registration node sends the paging message to enable the first-level location registration node to page the terminal. Since the terminal is in the paging range of the first-level location registration node, the first-level location registration node pages the terminal, thereby avoiding the inability to Paging to the location registration node paging terminal of the terminal reduces the paging overhead of the air interface and saves air interface resources.

4 is a schematic flowchart of a fourth embodiment of a method for paging a terminal according to the present invention. FIG. 4 is a schematic diagram of the embodiment shown in FIG. 3. If the second-level location registration node is the highest-level location registration node, before executing S302, : S401 to S402. If the second-level location registration node is not the highest level Before the execution of S302, the registration node further includes: S401 to S403, wherein the execution order of S402 and S403 is not limited.

Referring to the detailed description in the embodiment shown in FIG. 3, details are not described herein again.

S401: The second-level location registration node receives a first location registration request from the first-level location registration node, where the first location registration request includes identifier information of the terminal and the first-level location registration node. Identification information.

S402: The second-level location registration node records the first location registration information according to the first location registration request.

S403: The second-level location registration node sends a second location registration request to the third-level location registration node.

The third-level location registration node is the upper-level location registration node of the second-level location registration node, and the third-level location registration node records the third location registration information, where the third location registration information includes the identification information of the terminal and The second level location registers a third correspondence of the nodes. After receiving the paging message, the third-level location registration node determines the second-level location registration node corresponding to the identifier information of the terminal according to the identifier information of the terminal in the paging message.

In this embodiment, the second-level location registration node receives the paging message, receives the first location registration request from the first-level location registration node, and records the first location registration according to the first location registration request. Transmitting, to the third-level location registration node, a second location registration request, so that the third-level location registration node can be based on the end of the paging message after receiving the paging message The identification information of the terminal is determined by the second location registration node corresponding to the terminal, and the second-level location registration node determines the first-level location registration node corresponding to the identifier information of the terminal according to the first location registration information of the terminal, to the The first level location registration node sends the paging message to enable the first level location registration node to page the terminal. Since the terminal is in the paging range of the first level location registration node, the first level location registration node pages the terminal. The paging terminal of the location registration node that cannot be paged to the terminal is avoided, the paging overhead of the air interface is reduced, and the air interface resource is saved.

FIG. 5 is a schematic flowchart of Embodiment 5 of a method for paging a terminal according to the present invention. FIG. 5 is an implementation manner of FIG. 4, in order to further save signaling overhead, an alternative implementation manner of S403 is: After the second-level location registration node receives the first location registration request from the first-level location registration node, S501 to S503 are performed.

S401: The second-level location registration node receives a first location registration request from the first-level location registration node, where the first location registration request includes identifier information of the terminal and the first-level location registration. The identification information of the node.

Referring to the detailed description in the embodiment shown in FIG. 4, details are not described herein again.

S501: The second-level location registration node determines whether to record the fourth location registration information of the terminal. If not, perform S502, and if it has been recorded, execute S503.

That is, if the second-level location registration node determines that the fourth location registration information of the terminal is not recorded, then S502 is performed.

If the second-level location registration node determines that the fourth location registration information of the terminal has been recorded, then S503 is performed.

The fourth location registration information includes a fourth correspondence between the identifier information of the terminal and other first-level location registration nodes, where the terminal is in front of the paging range of the first-level location registration node. The terminal is in a paging range of the other first-level location registration node. The upper level location registration node of the other first level location registration node and the second level The location registration node is the same, and the second-level location registration request includes the identifier information of the terminal and the identifier information of the second-level location registration node.

S502: The second-level location registration node sends a second location registration request to the third-level location registration node.

The third-level location registration node records third location registration information, where the third location registration information includes a third correspondence between the identifier information of the terminal and the second-level location registration node. After receiving the paging message, the third-level location registration node can determine the second location registration node corresponding to the terminal according to the identifier information of the terminal in the paging message and the third correspondence.

After receiving the second location registration request, the third-level location registration node further includes: determining whether the correspondence between the packet terminal and other location registration nodes, and if so, recording the third location registration information and deleting the correspondence between the terminal and other location registration nodes. Optionally, the other location registration node is notified to delete the location registration information of the terminal, thereby saving the memory of the other location registration node; if not, the third location registration information may be directly recorded.

S503: The second-level location registration node determines that the fourth location registration information of the terminal has been recorded, and the second-level location registration node deletes the fourth location registration information of the terminal, where the fourth location registration information includes the The fourth correspondence between the identification information of the terminal and other first-level location registration nodes.

Alternatively, the second-level location registration node determines that the fourth location registration information of the terminal has been recorded, and the second-level location registration node updates the fourth location registration information of the terminal to the first location registration information. The fourth location registration information includes a fourth correspondence between the identifier information of the terminal and other first-level location registration nodes.

Optionally, the second-level location registration node sends a location registration deletion request to the other first-level location registration node, where the location registration deletion request is used to instruct the other first-level location registration node to delete the terminal. Location registration information.

The first location registration information includes a first correspondence between the identifier information of the terminal and the first-level location registration node, where the first correspondence relationship is used to indicate the terminal location Within the paging range of the corresponding first-level location registration node.

In this embodiment, the second-level location registration node receives the paging message, receives the first location registration request from the first-level location registration node, and records the first location registration according to the first location registration request. Information, the second-level location registration node determines whether to record the fourth location registration information of the terminal, and if the second location registration request is not sent to the third-level location registration node, so that the third-level location registration node receives the paging message Determining, according to the identification information of the terminal in the paging message, the second location registration node corresponding to the terminal, and if so, updating the fourth location registration information of the terminal to the first location registration information, the second level The location registration node determines, according to the first location registration information of the terminal, a first-level location registration node corresponding to the identifier information of the terminal, and sends the paging message to the first-level location registration node, so that the first The location registration node paging terminal, because the terminal is in the paging range of the first-level location registration node, the first-level location registration node searches for Terminal, can not avoid the paging node paging terminal location registration of the terminal, reduces the paging overhead air interface, air interface resource savings.

Between the paging node and the location registration node capable of directly paging to the terminal, there may be a multi-level location registration node, and the interaction between the location registration node above the third level and its adjacent upper-level location registration node The interaction between the second-level location registration node and the third-level location registration node is similar, and details are not described herein again.

The specific embodiments of the above embodiments of the present invention will be described in detail below with specific examples.

FIG. 6 is a schematic diagram of a relationship between the location registration nodes at various levels according to an embodiment of the present invention. As shown in FIG. 6, the embodiment shows a three-level location registration node, which is: a level 0 location registration node (L0). The first-level location registration node (L1) and the second-level location registration node (L2); the second-level location registration node is the highest-level location registration node, and the 0th-level location registration node is the lowest-level location registration node. The second-level location registration node is one, that is, the location registration node L2, and the first-level location registration node includes three location registration nodes, namely: a location registration node L1-1, a location registration node L1-2, and a location registration node. L1-3; The 0th level location registration node is a base station. In this embodiment, an evolved base station (English: evolved NodeB, eNB for short) is taken as an example, and the 0th level location registration node includes eNB1-eNB20. The next level of location registration node L2 The record node includes location registration nodes L1-1, L1-2, L1-3; the next-level location registration node of the location registration node L1-1 includes eNB1-eNB8, and the next-level location registration node of the location registration node L1-1 includes The eNB9-eNB16, the next-level location registration node of the location registration node L1-1 includes an eNB17-eNB20.

FIG. 7 is a schematic diagram of a first application scenario according to an embodiment of the present invention. As shown in FIG. 7, in the application scenario shown in FIG. 7, the terminal is in the coverage of the eNB 7, but each eNB and the location registration node L1 1 to L1-3 and the location registration node L2, the location registration information of the terminal is not recorded, and the method for performing the paging terminal of the present invention is implemented in the application scenario. FIG. 8 is a method embodiment of the paging terminal according to the present invention. The flowchart of the sixth embodiment is as shown in FIG. 8. The method in this embodiment may include:

S801. The eNB7 receives the location registration indication sent by the terminal.

S802. The eNB7 records the location registration information 1 of the terminal according to the location registration instruction.

The location registration indication includes identification information of the terminal. The location registration information 1 includes identification information of the terminal, and is used to indicate that the location where the terminal is registered is within the coverage of the eNB 7.

For the specific implementation process of S801 and S802 in this embodiment, refer to related descriptions in Embodiment 1 of the method of the present invention, and details are not described herein again.

S803. The eNB7 transmits a first location registration request to the location registration node L1-1 according to the location registration indication.

The eNB 7 sends a first location registration request to the upper-level location registration node of the eNB 7 according to the location registration indication, where the upper-level location registration node of the eNB 7 is the location registration node L1-1; the first location registration request includes the terminal Identification information and identification information of the eNB 7.

S804. The location registration node L1-1 records the location registration information 2 of the terminal according to the first location registration request.

The location registration information 2 includes a correspondence between the identity information of the terminal and the identity information of the eNB 7, and is used to indicate that the terminal is within the paging range of the eNB 7.

S805. The location registration node L1-1 sends a second location registration request to the location registration node L2.

After the location registration node L1-1 records the location registration information 2 of the terminal, the location registration node 2 transmits a second location registration request to the upper-level location registration node of the location registration node L1-1. The upper location registration node of the location registration node L1-1 is the location registration node L2; the second location registration request includes the identifier of the terminal and the identifier information of the location registration node L1-1.

S806. The location registration node L2 records the location registration information 3 of the terminal according to the second location registration request.

The location registration information 3 includes a correspondence relationship between the identification information of the terminal and the identification information of the location registration node L1-1.

When the paging node pages the terminal, the method of this embodiment may further include the following.

S807. The location registration node L2 receives the paging message sent by the paging node.

In this embodiment, when the paging node needs to page the terminal, the paging node sends a paging message to the highest-level location registration node, and the highest-level location registration node is the location registration node L2.

S808. The location registration node L2 determines that the location information of the terminal is registered in the location registration node L1-1 based on the location registration information 3.

S809. The location registration node L2 sends a paging message to the location registration node L1-1.

In this embodiment, after receiving the paging message sent by the paging node, the location registration node L2 acquires the location registration information 3 of the terminal recorded by the location registration node L2 according to the identification information of the terminal in the paging message, and further Determining, according to the location registration information 3, location information of the terminal is registered in the location registration node L1-1, and in order to more accurately page the terminal, the location registration node L2 transmits the paging message to the location registration node L1-1, There is no need to send a paging message to other location registration nodes L1-2 and L1-3.

S810. The location registration node L1-1 determines that the terminal is within the paging range of the eNB7 according to the location registration information 2.

S811. The location registration node L1-1 sends a paging message to the eNB 7.

In this embodiment, after receiving the paging message sent by the location registration node L2, the location registration node L1-1 acquires the location of the terminal recorded by the location registration node L1-1 according to the identification information of the terminal in the paging message. Registration information 2, and further determining, according to the location registration information 2, location information of the terminal is registered in the eNB 7, and in order to more accurately page the terminal, the location registration node L1-1 transmits the paging message to the eNB 7, without A paging message is sent to the other base stations eNB1-6 and eNB8.

S812. The eNB7 determines, according to the location registration information 1, that the location of the terminal is within the paging range of the eNB 7.

S813. The eNB7 pages the terminal according to the paging message.

In this embodiment, after receiving the paging message sent by the location registration node L1-1, the eNB 7 receives the paging message. Obtaining the location registration information 1 of the terminal recorded by the eNB 7 according to the identification information of the terminal in the paging message, and further determining, according to the location registration information 1, that the location of the terminal is within the paging range of the eNB 7, and the eNB 7 according to the paging Message, page the terminal. Optionally, in order to further save the paging overhead, if the location registration information 1 includes the correspondence between the terminal and the cell of the eNB 7, the eNB 7 pages the terminal in the cell corresponding to the terminal without performing the entire paging range of the eNB 7. Paging.

In this embodiment, according to the level of the location registration node, the location information of the terminal is sequentially registered by the location registration node with a low rank to the location registration node with a high rank, and at the time of paging, the location registration node with a high rank sequentially ranks to the rank. The low location registration node forwards the paging message, so that the paging message finally arrives at the base station where the terminal is actually located, and then the base station performs paging, because the base station that is finally paging is a base station that can directly page to the terminal. The paging terminal of the location registration node that cannot be paged to the terminal is avoided, the paging overhead of the air interface is reduced, and the air interface resource is saved.

FIG. 9 is a schematic diagram of a second application scenario according to an embodiment of the present invention. As shown in FIG. 9, in the application scenario shown in FIG. 9, the terminal is moved within the paging range of the eNB7 within the paging range of the eNB7. However, the eNB 7 records the location registration information of the terminal, the location registration node L1-1 records the location registration information of the terminal 2, and the location registration node L2 records the location registration information 3 of the terminal, and performs the paging of the present invention in this application scenario. Embodiment 7 of the terminal; FIG. 10 is a flowchart of Embodiment 7 of a method for paging a terminal according to the present invention. As shown in FIG. 10, the method in this embodiment may include:

S1001 and eNB8 receive a location registration indication sent by the terminal.

S1002: The eNB8 records the location registration information 4 of the terminal according to the location registration instruction.

The location registration indication includes identification information of the terminal. The location registration information 4 includes identification information of the terminal for indicating that the location where the terminal is registered is within the paging range of the eNB 8.

For the specific implementation process of S1001 and S1002 in this embodiment, refer to related descriptions in Embodiment 1 of the method of the present invention, and details are not described herein again.

S1003. The eNB8 transmits a first location registration request to the location registration node L1-1 according to the location registration indication.

The eNB 8 sends a first location registration request to the upper-level location registration node of the eNB 8 according to the location registration indication, where the upper-level location registration node of the eNB 8 is the location registration node L1-1; the first location registration request includes the terminal Identification information and identification information of the eNB 8.

S1004. The location registration node L1-1 records the location registration information 5 of the terminal according to the first location registration request, and deletes the location registration information 2 of the terminal.

The location registration information 5 includes a mapping relationship between the identity information of the terminal and the identity information of the eNB 8, and is used to indicate that the terminal is in the paging range of the eNB8. Since the location registration information 2 of the terminal is previously recorded by the location registration node L1-1, and the current terminal is within the paging range of the eNB 8, the location registration node L1-1 deletes the location registration information 2 of the terminal.

It is to be noted that since the location registration node information 2 is previously recorded in the location registration node L1-1, the second location is also transmitted to the upper-level location registration node (location registration node L2) of the location registration node L1-1. In the registration request, the location registration node L2 records the location registration information 3 indicating that the location information of the terminal is registered in the L1-1; therefore, after the location registration node L1-1 records the location registration information 5, it is not necessary to register the location with the location registration node L2 then sends a location registration request.

S1005. The location registration node L1-1 sends a first location registration deletion request to the eNB 7.

After the location registration node L1-1 records the location registration information 5 of the terminal, since the location registration information of the terminal is recorded in the eNB 7, the location registration node L1-1 transmits a first location registration deletion request to the eNB 7, the first The location registration deletion request includes identification information of the terminal, and the first location registration deletion request is used to request to delete the location registration information of the terminal.

S1006 and eNB7 delete the location registration information 2 according to the first location registration deletion request.

The eNB 7 determines that the location registration information 2 of the terminal is recorded in the eNB 7 based on the identifier of the terminal included in the first location registration deletion request, and then deletes the location registration information 2.

S1007. The location registration node L2 receives the paging message sent by the paging node.

S1008. The location registration node L2 determines the next-level location registration node L1-1 corresponding to the terminal based on the location registration information 3.

S1009. The location registration node L2 sends a paging message to the location registration node L1-1.

For the specific implementation process of S1007-S1009, refer to the related description of S907-S909 in Embodiment 6 of the method of the present invention, and details are not described herein again.

S1010. The location registration node L1-1 determines that the terminal is within the paging range of the eNB8 according to the location registration information 5.

S1011. The location registration node L1-1 transmits a paging message to the eNB 8.

In this embodiment, the location registration node L1-1 receives the homing sent by the location registration node L2. After the message is sent, the location registration information 5 of the terminal recorded by the location registration node L1-1 is obtained according to the identifier information of the terminal in the paging message, and then the paging range of the terminal at the eNB8 is determined according to the location registration information 5. In order to more accurately page to the terminal, the location registration node L1-1 transmits the paging message to the eNB 8, without transmitting a paging message to the other base stations eNB1-7.

S1012. The eNB8 determines, according to the location registration information 4, that the location of the terminal is within the paging range of the eNB 8.

S1013. The eNB8 pages the terminal according to the paging message.

In this embodiment, after receiving the paging message sent by the location registration node L1-1, the eNB 8 acquires the location registration information 4 of the terminal recorded by the eNB8 according to the identification information of the terminal in the paging message, and further registers according to the location. The information 4 determines that the location of the terminal is within the paging range of the eNB 8, and the eNB 8 pages the terminal according to the paging message. Optionally, in order to further save the paging overhead, if the location registration information 4 includes the correspondence between the terminal and the cell of the eNB 8, the eNB 8 pages the terminal in the cell corresponding to the terminal without performing the entire paging range of the eNB 8. Paging.

In the method provided by the embodiment, according to the level of the location registration node, the location information of the terminal is sequentially registered by the location registration node with a low rank to the location registration node with a high rank, and at the time of paging, the location registration node with a high rank sequentially Forwarding the paging message to the low-level location registration node, so that the paging message finally arrives at the base station where the terminal is actually located, because the base station that is finally paging is a base station that can directly page to the terminal, avoiding the inability to page The paging terminal is registered to the location of the terminal, which reduces the paging overhead of the air interface and saves air interface resources.

FIG. 11 is a schematic diagram of a third application scenario according to an embodiment of the present invention. As shown in FIG. 11, in the application scenario shown in FIG. 11, the terminal moves within the coverage of the eNB8 to the coverage of the eNB9, but the eNB8 Recording the location registration information of the terminal 4, the location registration node L1-1 recording the location registration information 5 of the terminal, the location registration node L2 recording the location registration information 3 of the terminal, and performing the paging terminal of the present invention in this application scenario Embodiment 8 of the present invention; FIG. 12 is a flowchart of Embodiment 8 of a method for paging a terminal according to the present invention. As shown in FIG. 12, the method in this embodiment may include:

S1201 and eNB9 receive a location registration indication sent by the terminal.

S1202: The eNB9 records the location registration information 6 of the terminal according to the location registration instruction.

The location registration indication includes identification information of the terminal. The location registration information 6 includes identification information of the terminal for indicating that the terminal is within the paging range of the eNB 9.

For the specific implementation process of S1201 and S1202 in this embodiment, refer to related descriptions in Embodiment 1 of the method of the present invention, and details are not described herein again.

S1203. The eNB9 transmits a first location registration request to the location registration node L1-2 according to the location registration indication.

The eNB 9 sends a first location registration request to the upper-level location registration node of the eNB 9 according to the location registration indication, where the upper-level location registration node of the eNB 9 is the location registration node L1-2; the first location registration request includes the terminal Identification information and identification information of the eNB 9.

S1204. The location registration node L1-2 records the location registration information 7 of the terminal according to the first location registration request.

The location registration information 7 includes a correspondence between the identification information of the terminal and the identification information of the eNB 9, and the location registration information 7 is used for the terminal to be in the paging range of the eNB9.

S1205. The location registration node L1-2 sends a second location registration request to the location registration node L2.

After the location registration node L1-2 records the location registration information 7 of the terminal, the location registration node 7 transmits a second location registration request to the upper-level location registration node of the location registration node L1-2. The upper location registration node of the location registration node L1-2 is the location registration node L2; the second location registration request includes the identifier of the terminal and the identifier information of the location registration node L1-2.

S1206. The location registration node L2 records the location registration information 8 of the terminal according to the second location registration request, and deletes the location registration information 3 of the terminal.

The location registration information 8 includes a correspondence relationship between the identification information of the terminal and the identification information of the location registration node L1-2. Since the location registration information 3 of the terminal is previously recorded by the location registration node L2, the location registration node L2 deletes the location registration information 3 of the terminal.

S1207. The location registration node L2 transmits a second location registration deletion request to the location registration node L1-1.

After the location registration node L2 records the location registration information 8 of the terminal, since the location registration information of the terminal is recorded in the next-level location registration node L1-1 of the location registration node L2, the location registration node L2 registers with the location. The node L1-1 sends a second location registration deletion request, where the second location registration deletion request includes identification information of the terminal, and the second location registration deletion In addition to requesting location registration information for requesting deletion of the terminal.

S1208. The location registration node L1-1 deletes the location registration information 5 according to the second location registration deletion request.

The location registration node L1-1 determines the location registration information 5 of the terminal recorded in the location registration node L1-1 based on the identity of the terminal included in the second location registration deletion request, and then deletes the location registration information 5.

S1209. The location registration node L1-1 transmits a third location registration deletion request to the eNB 8.

After the location registration node L1-1 deletes the location registration information 5, since the location registration information 4 of the terminal is recorded in the eNB 8, the location registration node L1-1 transmits a third location registration deletion request to the eNB 8, which is registered in the third location. The deletion request includes identification information of the terminal, and the third location registration deletion request is used to request deletion of location registration information of the terminal.

S1210 and eNB8 delete the location registration information 4 according to the third location registration deletion request.

The eNB 8 determines that the location registration information 4 of the terminal is recorded in the eNB 8 based on the identifier of the terminal included in the third location registration deletion request, and then deletes the location registration information 4.

S1211. The location registration node L2 receives the paging message sent by the paging node.

S1212. The location registration node L2 determines that the location information of the terminal is registered in the location registration node L1-2 based on the location registration information 8.

S1213. The location registration node L2 sends a paging message to the location registration node L1-2.

In this embodiment, after receiving the paging message sent by the paging node, the location registration node L2 acquires the location registration information 8 of the terminal recorded by the location registration node L2 according to the identification information of the terminal in the paging message, and further Determining, according to the location registration information 8, that the location information of the terminal is registered in the location registration node L1-2, in order to more accurately page the terminal, the location registration node L2 sends the paging message to the location registration node L1-2, There is no need to send a paging message to other location registration nodes L1-1 and L1-3.

S1214. The location registration node L1-2 determines that the terminal is within the paging range of the eNB 9 based on the location registration information 7.

S1215. The location registration node L1-2 sends a paging message to the eNB 9.

In this embodiment, after receiving the paging message sent by the location registration node L2, the location registration node L1-2 acquires the location of the terminal recorded by the location registration node L1-2 according to the identification information of the terminal in the paging message. The registration information 7 is further determined according to the location registration information 7 that the location information of the terminal is registered in the eNB 9. In order to more accurately page the terminal, the location registration node L1-2 sends the paging message to the eNB 9, without A paging message is sent to the other base stations eNB 10-16.

S1216. The eNB9 determines, according to the location registration information 6, that the location of the terminal is within the paging range of the eNB9.

S1217. The eNB9 pages the terminal according to the paging message.

In this embodiment, after receiving the paging message sent by the location registration node L1-2, the eNB 9 acquires the location registration information 6 of the terminal recorded by the eNB9 according to the identification information of the terminal in the paging message, and further registers according to the location. The information 6 determines that the location of the terminal is in the coverage of the eNB 9, and the eNB 9 pages the terminal according to the paging message.

In the method provided by the embodiment, according to the level of the location registration node, the location information of the terminal is sequentially registered by the location registration node with a low rank to the location registration node with a high rank, and at the time of paging, the location registration node with a high rank sequentially Forwarding the paging message to the low-level location registration node, so that the paging message finally arrives at the base station where the terminal is actually located, and then the base station performs paging, because the base station that finally performs paging can directly page to the terminal. The base station avoids the paging terminal of the location registration node that cannot be paged to the terminal, reduces the paging overhead of the air interface, and saves air interface resources.

FIG. 13 is a schematic diagram of a fourth application scenario according to an embodiment of the present invention, where an eNB is a first-level location registration node for a terminal. For wearable devices near the terminal, such as smart watches and smart necklaces, the terminal is its corresponding first level location registration node. That is, a certain node can be a terminal and a location registration node. The same similar scenario is also mobile base stations, such as car base stations and terminals on the car. As a mobile location registration node, when its upper-level location registration node is replaced, it is necessary to update the location registration records of all terminals associated therewith. The mobile location registration node may actively send a location registration update indication to the new upper-level location registration node. In this embodiment, when the terminal moves from the eNB 7 to the eNB 8, in addition to initiating a location registration request to the eNB 8 as a normal terminal, The eNB 8 initiates a smart watch, a location registration update indication of the smart necklace, or forwards the smart watch and wisdom to the eNB 8 as a relay node. The location registration request of the necklace.

Or the identifier information carried by the terminal when the terminal sends the location registration request, where the identifier information may correspond to one terminal or multiple terminals. In this way, it is possible to prevent the terminal multiple messages from initiating their own location registration request to the eNB8 and the location registration update indication of the node smart watch and the smart necklace under it. The smart watch and the smart necklace and the terminal are bound to the same identification information, and the terminal sends a location registration request. When the paging message is received by the upper-level location registration request, the binding information of the identification information may be used to find whether the terminal that needs to be paged is bound to a certain identification information, and the corresponding location registration information is found by using the identification information. And the corresponding next-level location registration node is found, and the paging message is forwarded, or the paging message directly carries the identifier of the terminal and the binding identification information, and the location registration information is found through the binding identifier, and the paging message is forwarded. When the smart watch or smart necklace leaves or enters the mobile phone, or the vehicle terminal leaves or enters the vehicle base station, it needs to identify the binding update process, which may be initiated by the above node or initiated by the mobile location node to the feature information management node. Registration.

FIG. 14 is a schematic diagram of a fifth application scenario according to an embodiment of the present invention. As shown in FIG. 14 , when a terminal enters an eNB coverage area, the UE needs to initiate an attach procedure, and when the network is registered to use the network service, the feature information management node Interacting with the terminal to assign feature information. As shown in the following figure, when the UE initially accesses the network or enters the network from outside the network, the terminal needs to register with the network to indicate that it enters the network and obtains network-related configuration information. For example, the LTE system generally includes the default evolved packet system bearer. (default EPS/Evolved Packet System bearer) configuration information, information such as the IP configuration of the UE. After receiving the Attach request from the UE, the core network may request configuration feature information from the corresponding feature information management node, where the request may include the identifier information of the UE, and may include the IMSI/TMSI information of the UE, the IP address of the UE, and the like. Or as

In order to limit the scope of use of the feature information, the search area may be divided into a plurality of search areas, and the search area may include a plurality of cells. The feature configuration request may report the search area information corresponding to the base station where the UE is currently located, or may use the original location area concept instead of the search area. The feature configuration set request carries the information of the current location area of the UE. The feature information management node assigns a feature configuration to the terminal, and the configuration corresponds to the UE in a certain range, and the corresponding configuration is sent to the core network node (here, the MME node in the LTE), and is forwarded to the terminal by the node.

Or as shown in FIG. 15, the feature configuration request may also be initiated by the terminal, where it may be carried. The information includes the IMSI/TMSI information of the UE, the IP address of the UE, and the like, the current cell of the UE, the location area, or the search area. The control information may be sent to the feature information management node by a non-access stratum (Non-access Stratum, NAS for short) or by a user plane by an IP-based manner. After the feature information management node assigns the corresponding feature information to the terminal, it sends the message to the terminal through the feature configuration message.

The feature information configuration node can be an independent node or a logical function. When it is a logical function, it can be integrated with the core network management node, and the feature configuration request and response message are no longer needed, and can also be controlled by the base station. In combination, the feature configuration request is carried by the wireless configuration request message, such as a radio resource management (English: Radio Resource Control, RRC) request message, a measurement report, a handover request, etc., and the feature configuration information is transmitted through a radio resource configuration message (such as RRC). Reconfiguration, switching commands, etc.).

When coexisting with the existing network, when the terminal enters the network that supports the technical feature of the present invention, the terminal interacts with the feature information management node to acquire the feature information. The network boundary may be distinguished by a base station broadcast indicating a new network identifier, or a different location area or a search area, that is, the foregoing attach procedure may be a location area update, a new network access, a handover, and the like.

The feature information is used by the base station to distinguish information of different terminals, and may be signal sequence information (such as a sounding signal sent by the UE), or may be terminal tracking identification information (such as an ID for identifying the terminal, and may also include network information of the corresponding UE). Such as PLMN information, location area or search area information). The terminal sends the feature information on the specific time-frequency resource, for example, the terminal sends a sounding signal indicating the feature on the physical uplink control channel (English: Physical Uplink Control Channel, PUCCH) resource, or the configured uplink shared channel. The discovery packet is sent, and the packet carries the terminal tracking identifier.

The time-frequency resource may be allocated to the terminal by the feature information management node, or may be allocated to the terminal by the base station. If configured by the base station, it may be sent by means of broadcast. When the terminal selects or reselects a cell, the broadcast information acquisition feature transmission configuration is read. Or the broadcast information is valid in one area (several cells), may be broadcast by a macro base station with a larger coverage, or may be broadcasted by each cell in the area together as a common configuration in the area (in the broadcast Different from other cell-specific configurations).

The feature sending configuration information may include: sending the air interface radio resource information, the wireless resource The source information may be one or several resource pools, and different resource pools may be used for different types of terminals (high speed/low speed/fixed, high priority/low priority, connected state/idle state/abnormal state/connection reconstructed state, Different signal quality, such as path loss, mobile phone / mobile relay / wearable device / sensor, etc., a resource pool also contains a number of resources to support the simultaneous transmission of multiple similar terminals, each resource includes Corresponding time-frequency domain resources, such as the location and period of the subframe in which the resource is located, the location of the frequency domain (such as the LTE PRB location), the modulation and coding format to be used (this can also be predefined in the protocol), the transmit power configuration, and the code. Information such as a domain resource, a sending mode, and the like, is used to instruct the terminal to send the feature information. If the base station and the feature information management node are configured at the same time, the configuration information of the base station may be preferentially selected. To avoid the battery consumption of the terminal, you can configure the minimum interval for sending the feature information of the terminal twice, or disable the transmission timing, or configure the feature information transmission period (that is, the period is not affected by whether it is newly entered into the cell). The base station receives in the resources in the resource pool.

FIG. 16 is a schematic structural diagram of Embodiment 1 of a device for paging a terminal according to the present invention. As shown in FIG. 16, the device in this embodiment is deployed in the first-level location registration node, and the device in this embodiment includes a receiving module 1601 and a paging module 1602, wherein the receiving module 1601 is configured to receive a paging message from a second-level location registration node, where the paging message includes identifier information of the terminal, where the paging message is used to page the terminal, The first location registration information of the terminal is stored in the second-level location registration node, where the first location registration information includes a first correspondence between the identifier information of the terminal and the first-level location registration node. The first correspondence is used to indicate that the terminal is in a paging range of the corresponding first-level location registration node; the paging module 1602 is configured to page the terminal according to the paging message.

In the foregoing embodiment, the receiving module 1601 is further configured to receive a location registration indication from the terminal, where the location registration indication includes identifier information of the terminal, where the location registration indication is used to indicate registration of the terminal. s position;

The device also includes:

The sending module 1603 is configured to send, according to the location registration indication, a first location registration request to the second-level location registration node, where the first location registration request includes identifier information of the terminal and the first-level location registration The identification information of the node, so that the second-level location registration node records the first location registration information of the terminal according to the first location registration request.

In the above embodiment, the apparatus further includes a recording module 1604 for determining the location according to the location Recording, the second location registration information of the terminal is recorded; the second location registration information of the terminal includes the identification information of the terminal, and the second location registration information of the terminal is used to indicate that the terminal is in the Within the paging range of the primary location registration node;

In the foregoing embodiment, the recording module 1604 is specifically configured to: determine, by using the first cell, the location registration indication from the terminal, and record second location registration information of the terminal; the second location registration information. The identifier information of the terminal and the second corresponding relationship of the first cell are included, where the second correspondence is used to indicate that the terminal is in a paging range of the corresponding first cell;

In the above embodiment, the first level location registration node is a base station.

The device in the foregoing embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 1 or FIG. 2, and the implementation principle is similar, and details are not described herein again.

Receiving, by the receiving module, a location registration indication from the terminal, the sending module sending a first location registration request to the second-level location registration node according to the location registration indication, and the recording module records the terminal according to the location registration indication a second location registration information, the receiving module receives a paging message from the second-level location registration node, the paging message includes the identification information of the terminal, and the paging module determines, according to the second location registration information of the terminal, that the terminal is located In the paging range of the first-level location registration node, according to the paging message, the paging terminal, because the paging module pages the terminal within its paging range, or searches in the first cell of the first location registration node The calling terminal avoids the paging terminal of the location registration node that cannot be paged to the terminal, reduces the paging overhead of the air interface, and saves the air interface resource.

FIG. 17 is a schematic structural diagram of Embodiment 2 of a device for paging a terminal according to the present invention. The device for paging a user equipment terminal is deployed in a second-level location registration node, and the apparatus in this embodiment includes a receiving module 1701 for receiving paging. a message, the paging message includes the identification information of the terminal, the paging message is used to page the terminal, and the processing module 1702 is configured to determine, according to the first location registration information of the terminal, the identifier information of the terminal. First level location registration node, The first location registration information includes a first correspondence between the identifier information of the terminal and the first-level location registration node, where the first correspondence relationship is used to indicate that the terminal is in the corresponding The paging module of the first-level location registration node is configured to send the paging message to the first-level location registration node.

In the foregoing embodiment, the receiving module 1701 is further configured to receive a first location registration request from the first-level location registration node, where the first location registration request includes identifier information of the terminal and the Identification information of the first-level location registration node;

The device further includes: a recording module 1704, configured to record the first location registration information according to the first location registration request.

In the foregoing embodiment, the sending module 1703 is further configured to send a second location registration request to the third-level location registration node, so that the third-level location registration node records the third location registration information, where the third location The registration information includes a third correspondence between the identification information of the terminal and the second-level location registration node.

In the foregoing embodiment, the sending module 1703 is further configured to determine that the fourth location registration information of the terminal is not recorded, and the second-level location registration node sends a second location registration request to the third-level location registration node, where The third-level location registration node records the third location registration information, where the third location registration information includes a third correspondence between the identifier information of the terminal and the second-level location registration node;

The recording module 1704 is further configured to determine that the fourth location registration information of the terminal has been recorded, and the second-level location registration node updates the fourth location registration information of the terminal to the first location registration information, The fourth location registration information includes a fourth correspondence between the identifier information of the terminal and other first-level location registration nodes.

In the above embodiment, the sending module 1703 is further configured to the other first level position. The registration node sends a location registration deletion request, and the location registration deletion request is used to instruct the other first-level location registration node to delete the location registration information of the terminal.

In the above embodiment, the receiving module 1701 is specifically configured to receive the paging message from the paging node; or receive the paging message from the third-level location registration node.

The device of the foregoing embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 3 to FIG. 5, and the implementation principle is similar, and details are not described herein again.

In this embodiment, the receiving module receives the paging message, receives the first location registration request from the first-level location registration node, and the recording module records the first location registration information according to the first location registration request. The sending module determines whether to record the fourth location registration information of the terminal, and if the second location registration request is not sent to the third-level location registration node, so that the third-level location registration node can be based on the paging after receiving the paging message The identification information of the terminal in the message is determined by the second location registration node corresponding to the terminal. If the record is recorded, the recording module updates the fourth location registration information of the terminal to the first location registration information, and the sending module is configured according to the terminal. The first location registration information, the first level location registration node corresponding to the identifier information of the terminal is determined, and the paging message is sent to the first level location registration node, so that the first level location registration node paging terminal Because the terminal is in the paging range of the first-level location registration node, the first-level location registration node pages the terminal, avoiding The location registration can not be paged paging terminal node terminals, reducing paging overhead air interface, and saves air interface resources.

18 is a schematic structural diagram of Embodiment 3 of a device for paging a terminal according to the present invention. As shown in FIG. 18, a device 1800 for paging a terminal includes a communication interface 1801, a memory 1803, and a processor 1802. The communication interface 1801 and the processor 1802 The memory 1803 is connected to each other through a bus 1804; the bus 1804 may be a PCI bus or an EISA bus or the like. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 18, but it does not mean that there is only one bus or one type of bus.

The communication interface 1801 is configured to receive a paging message from a second-level location registration node, where the paging message includes identifier information of the terminal, and the paging message is used to page the terminal, the second level The first location registration information of the terminal is stored in the location registration node, where the first location registration information includes a first correspondence between the identifier information of the terminal and the first-level location registration node, where the first correspondence The relationship is used to indicate that the terminal is in the corresponding first level The location registration node is within the paging range; the memory 1803 is for storing the program. In particular, the program can include program code, the program code including computer operating instructions. The memory 1803 may include RAM, and may also include a non-volatile memory such as at least one disk storage.

The processor 1802 executes the program stored in the memory 1803 to implement the method of the paging terminal shown in FIG. 1 or FIG. 2 of the present invention, including:

Paging the terminal according to the paging message.

The processor 1802 described above may be a general-purpose processor, including a CPU, an NP, etc.; or may be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic device, Discrete gate or transistor logic, discrete hardware components.

19 is a schematic structural diagram of Embodiment 4 of a device for paging a terminal according to the present invention. As shown in FIG. 19, a device 1900 for paging a terminal includes a communication interface 1901, a memory 1903, and a processor 1902. The communication interface 1901 and the processor 1902 The memory 1903 is connected to each other through a bus 1904; the bus 1904 may be a PCI bus or an EISA bus or the like. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 19, but it does not mean that there is only one bus or one type of bus.

The communication interface 1901 is configured to receive a paging message, where the paging message includes identifier information of the terminal, the paging message is used to page the terminal, and the memory 1903 is configured to store a program. In particular, the program can include program code, the program code including computer operating instructions. The memory 1903 may include RAM, and may also include a non-volatile memory such as at least one disk storage.

The processor 1902 executes the program stored in the memory 1903 to implement the paging terminal shown in FIG. 3 to FIG. 5, and includes:

Determining, according to the first location registration information of the terminal, a first-level location registration node corresponding to the identifier information of the terminal, where the first location registration information includes the identifier information of the terminal and the first level a first correspondence of the location registration node, where the first correspondence is used to indicate that the terminal is in a paging range of the corresponding first-level location registration node; and the foregoing is sent to the first-level location registration node Paging message.

The processor 1902 described above may be a general-purpose processor, including a CPU, an NP, etc.; or may be a digital signal processor (DSP), an application specific integrated circuit (ASIC), or a field programmable gate array (FPGA). Or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.

The embodiment of the present invention further provides a computer readable medium, including computer execution instructions, where the computer execution instruction is used by a first level location registration node to perform the paging terminal of the present invention. Said method. And the computer-executed instruction is used by the second-level location registration node to perform the method described in any one of Embodiments 3 to 5 of the paging terminal of the present invention.

One of ordinary skill in the art will appreciate that all or part of the steps to implement the various method embodiments described above may be accomplished by hardware associated with the program instructions. The aforementioned program can be stored in a computer readable storage medium. The program, when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

A method for paging a terminal, comprising:

The first level location registration node receives a paging message from the second level location registration node, the paging message includes identification information of the terminal; the paging message is used to page the terminal, the second level location The first location registration information of the terminal is stored in the registration node, where the first location registration information includes a first correspondence between the identifier information of the terminal and the first-level location registration node, and the first correspondence relationship Used to indicate that the terminal is in a paging range of the corresponding first-level location registration node;

The first stage location registration node pages the terminal according to the paging message.
The method according to claim 1, wherein the first stage location registration node before receiving the paging message from the second level location registration node further comprises:

The first-level location registration node receives a location registration indication from the terminal, the location registration indication includes identification information of the terminal, and the location registration indication is used to indicate a location where the terminal is registered;

Transmitting, by the first-level location registration node, a first location registration request to the second-level location registration node according to the location registration indication, where the first location registration request includes identifier information of the terminal and the first The level location registration node identifies information such that the second level location registration node records the first location registration information of the terminal according to the first location registration request.
The method according to claim 2, wherein after the first-level location registration node receives the location registration indication from the terminal, the method further includes:

The first-level location registration node records second location registration information of the terminal according to the location registration indication; the second location registration information of the terminal includes identification information of the terminal, and the second location of the terminal The registration information is used to indicate that the terminal is in a paging range of the first-level location registration node;

The first stage location registration node, before paging the terminal according to the paging message, further includes:

The first-level location registration node determines, according to the second location registration information of the terminal, that the terminal is in a paging range of the first-level location registration node.
The method according to claim 3, wherein the first-level location registration node records the second location registration information of the terminal according to the location registration indication, including:

The first stage location registration node determines to receive the location registration indication from the terminal by using the first cell, and records second location registration information of the terminal; the second location registration information includes the terminal a second corresponding relationship between the identifier information and the first cell, where the second correspondence is used to indicate that the terminal is in a paging range of the corresponding first cell;

Determining, by the first-level location registration node, that the terminal is in a paging range of the first-level location registration node, according to the second location registration information of the terminal, including:

Determining, by the first-level location registration node, that the terminal is in a paging range of the first cell according to the second correspondence;

The paging by the first-level location registration node according to the paging message includes:

The first stage location registration node pages the terminal in the first cell according to the paging message.
The method according to any one of claims 1 to 4, wherein the first level location registration node is a base station.
A method for paging a user equipment terminal, comprising:

The second-level location registration node receives a paging message, where the paging message includes identifier information of the terminal, and the paging message is used to page the terminal;

The second-level location registration node determines, according to the first location registration information of the terminal, a first-level location registration node corresponding to the identifier information of the terminal, where the first location registration information includes the terminal a first correspondence between the identifier information and the first-level location registration node, where the first correspondence is used to indicate that the terminal is in a paging range of the corresponding first-level location registration node;

The second level location registration node sends the paging message to the first level location registration node.
The method according to claim 6, wherein the second-level location registration node determines the first-level location registration node corresponding to the identification information of the terminal according to the first location registration information of the terminal, include:

Receiving, by the second-level location registration node, a first location registration request from the first-level location registration node, where the first location registration request includes identifier information of the terminal and the first-level location registration node Identification information;

The second level location registration node records the first according to the first location registration request Location registration information.
The method according to claim 7, wherein after the second-level location registration node receives the first location registration request sent by the first-level location registration node, the method further includes:

Transmitting, by the second-level location registration node, a second location registration request to the third-level location registration node, so that the third-level location registration node records third location registration information, where the third location registration information includes the a third correspondence between the identification information of the terminal and the second-level location registration node.
The method according to claim 7, wherein after the second-level location registration node receives the first location registration request from the first-level location registration node, the method further includes:

The second-level location registration node determines that the fourth location registration information of the terminal is not recorded, and the second-level location registration node sends a second location registration request to the third-level location registration node, so that the third location The third location registration information is recorded by the level location registration node, where the third location registration information includes a third correspondence between the identifier information of the terminal and the second level location registration node;

The fourth location registration information includes a fourth correspondence between the identifier information of the terminal and other first-level location registration nodes, and the upper-level location registration node of the other first-level location registration node The second-level location registration node is the same, and the second-level location registration request includes the identifier information of the terminal and the identifier information of the second-level location registration node.
The method according to claim 7, wherein the second-level location registration node determines the first-level location registration node corresponding to the identification information of the terminal according to the first location registration information of the terminal, include:

Receiving, by the second-level location registration node, a first location registration request from the first-level location registration node, where the first location registration request includes identifier information of the terminal and the first-level location registration node Identification information;

The second-level location registration node determines that the fourth location registration information of the terminal has been recorded, and the second-level location registration node updates the fourth location registration information of the terminal to the first location registration information, The fourth location registration information includes a fourth correspondence between the identifier information of the terminal and other first-level location registration nodes.
The method of claim 10, further comprising:

The second-level location registration node sends a location registration deletion request to the other first-level location registration node, where the location registration deletion request is used to instruct the other first-level location registration node to delete the location registration information of the terminal. .
The method according to any one of claims 6-11, wherein the second-level location registration node receives the paging message, including:

The second level location registration node receives the paging message from the paging node; or

The second level location registration node receives the paging message sent by the third level location registration node.
The method according to any of claims 6-12, wherein the first level location registration node is a base station.
An apparatus for paging a terminal, where the apparatus is deployed in the first-level location registration node, and includes:

a receiving module, configured to receive a paging message from a second-level location registration node, where the paging message includes identifier information of the terminal; the paging message is used to page the terminal, and the second-level location registration The first location registration information of the terminal is stored in the node, where the first location registration information includes a first correspondence between the identifier information of the terminal and the first-level location registration node, where the first correspondence is used. And indicating that the terminal is in a paging range of the corresponding first-level location registration node;

a paging module, configured to page the terminal according to the paging message.
The device according to claim 14, wherein the receiving module is further configured to receive a location registration indication from the terminal, where the location registration indication includes identification information of the terminal, and the location registration indication is Instructing to register the location of the terminal;

The device also includes:

a sending module, configured to send, according to the location registration indication, a first location registration request to the second-level location registration node, where the first location registration request includes identifier information of the terminal and the first-level location registration The identification information of the node, so that the second-level location registration node records the first location registration information of the terminal according to the first location registration request.
The device according to claim 15, further comprising:

a recording module, configured to record second location registration information of the terminal according to the location registration indication; the second location registration information of the terminal includes identifier information of the terminal, where The second location registration information of the terminal is used to indicate that the terminal is in a paging range of the first-level location registration node;

The paging module is further configured to determine, according to the second location registration information of the terminal, that the terminal is in a paging range of the first-level location registration node.
The device according to claim 16, wherein the recording module is specifically configured to: determine, by the first cell, the location registration indication from the terminal, and record second location registration information of the terminal; The second location registration information includes the identifier information of the terminal and the second corresponding relationship of the first cell, where the second correspondence is used to indicate that the terminal is in a paging range of the corresponding first cell. ;

The paging module is specifically configured to: according to the second correspondence, the first-level location registration node determines that the terminal is in a paging range of the first cell; according to the paging message, in the paging message The first cell pages the terminal.
Apparatus according to any of claims 14-17, wherein said first level location registration node is a base station.
An apparatus for paging a terminal, where the device for paging a user equipment terminal is deployed in a second-level location registration node, and includes:

a receiving module, configured to receive a paging message, where the paging message includes identifier information of the terminal, where the paging message is used to page the terminal;

a processing module, configured to determine, according to the first location registration information of the terminal, a first-level location registration node corresponding to the identifier information of the terminal, where the first location registration information includes identifier information of the terminal a first correspondence of the first-level location registration node, where the first correspondence is used to indicate that the terminal is in a paging range of the corresponding first-level location registration node;

And a sending module, configured to send the paging message to the first-level location registration node.
The apparatus according to claim 19, wherein said receiving module is further configured to receive a first location registration request from said first level location registration node, said first location registration request including said terminal Identification information and identification information of the first-level location registration node;

The device also includes:

a recording module, configured to record the first location registration according to the first location registration request information.
The apparatus according to claim 20, wherein the sending module is further configured to send a second location registration request to the third-level location registration node, so that the third-level location registration node records the third location registration information. The third location registration information includes a third correspondence between the identifier information of the terminal and the second-level location registration node.
The device according to claim 20, wherein the sending module is further configured to determine that the fourth location registration information of the terminal is not recorded, and the second-level location registration node sends the third-level location registration node to the third-level location registration node. a second location registration request, so that the third-level location registration node records third location registration information, where the third location registration information includes identifier information of the terminal and a third location registration node Correspondence relationship

The fourth location registration information includes a fourth correspondence between the identifier information of the terminal and other first-level location registration nodes, and the upper-level location registration node of the other first-level location registration node The second-level location registration node is the same, and the second-level location registration request includes the identifier information of the terminal and the identifier information of the second-level location registration node.
The apparatus according to claim 20, wherein said receiving module is further configured to receive a first location registration request from said first level location registration node, said first location registration request including said terminal Identification information and identification information of the first-level location registration node;

The recording module is further configured to determine that the fourth location registration information of the terminal has been recorded, and the second-level location registration node updates the fourth location registration information of the terminal to the first location registration information, where The fourth location registration information includes a fourth correspondence between the identifier information of the terminal and other first-level location registration nodes.
The device according to claim 23, wherein the sending module is further configured to send a location registration deletion request to the other first-level location registration node, where the location registration deletion request is used to indicate the other first The level location registration node deletes the location registration information of the terminal.
The device according to any one of claims 19-24, wherein the receiving module is specifically configured to receive the paging message from a paging node; or receive a location sent by a third-level location registration node. Said paging message.
Apparatus according to any of claims 19-25, wherein said first The class location registration node is a base station.