WO2018049973A1

WO2018049973A1 - Paging method, base station and network element of core network

Info

Publication number: WO2018049973A1
Application number: PCT/CN2017/099037
Authority: WO
Inventors: 马慧; 陈卓
Original assignee: 中国移动通信有限公司研究院; 中国移动通信集团公司
Priority date: 2016-09-14
Filing date: 2017-08-25
Publication date: 2018-03-22
Also published as: CN107820315A

Abstract

Provided are a paging method, a base station and a network element of a core network, wherein the paging method comprises: receiving downlink data of a user equipment issued by a core network, and triggering a paging process of a network element of a core network sending a paging message to the user equipment.

Description

Paging method, base station and core network element

Cross-reference to related applications

The present application claims priority to Chinese Patent Application No. 201610825465.X filed on Sep. 14, 2016, the entire disclosure of which is hereby incorporated by reference.

Technical field

The present disclosure relates to the field of communications technologies, and in particular, to a paging method, a base station, and a core network element.

Background technique

In the LTE (Long Time Evolution) technology of the related art, the paging process of the UE (User Equipment) in the idle state is as shown in FIG. 1 , and the MME (Mobility Management Entity) receives the paging process. After the downlink data notification sent by the SGW (Serving GateWay), the UE is paged by the base station in the Tracking Area (TA) list of the UE.

However, when the RRC (Radio Resource Control) link between the UE and the base station has been released or is in a suspended state, the base station may still retain the context of the UE and be in a connected state with the core network. At this time, if there is downlink data to be delivered to the UE, the SGW directly sends downlink data to the base station. At this time, although the base station receives the downlink data, the base station does not know the paging area configuration of the UE, and cannot send a valid paging message to the UE, which ultimately results in downlink data loss of the UE.

Summary of the invention

The purpose of the disclosure is to provide a paging method, a base station, and a core network element to solve the problem that the base station in the related art cannot send a valid paging message to the UE when the UE is in the deactivated state.

In order to achieve the above object, an embodiment of the present disclosure provides a paging method, which is applied to a base station, and includes:

Receiving downlink data of the user equipment delivered by the core network;

And triggering a paging process in which the core network element sends a paging message to the user equipment.

The embodiment of the present disclosure further provides a paging method, which is applied to a core network element, and includes:

Receiving, by the base station, a paging trigger message that carries an identifier of the user equipment;

And sending, in the second basic paging area, a paging message to the user equipment according to the identifier of the user equipment, to notify the user equipment to receive downlink data that is sent by the core network to the base station.

The embodiment of the present disclosure further provides a base station, including:

a first receiving module, configured to receive downlink data of the user equipment delivered by the core network;

The triggering module is configured to trigger a paging process in which the core network element sends a paging message to the user equipment.

The embodiment of the present disclosure further provides a core network element, including:

a second receiving module, configured to receive a paging trigger message that is sent by the base station and that carries an identifier of the user equipment;

The sending module is configured to send, in the second basic paging area, a paging message to the user equipment according to the identifier of the user equipment, to notify the user equipment to receive downlink data that is sent by the core network to the base station.

The embodiment of the present disclosure further provides a base station, including: a processor, a memory, and a transceiver, where:

The processor is configured to read a program in the memory and perform the following process:

Receiving downlink data of the user equipment delivered by the core network;

Trimming a paging process for the core network element to send a paging message to the user equipment,

The transceiver is configured to receive and transmit data,

The memory is capable of storing data used by the processor when performing operations.

The embodiment of the present disclosure further provides a core network element, including: a processor, a memory, and a transceiver, where:

Sending, in the second basic paging area, a paging message to the user equipment according to the identifier of the user equipment, to notify the user equipment to receive downlink data that is sent by the core network to the base station,

The transceiver is configured to receive and transmit data,

An embodiment of the present disclosure further provides a computer readable storage medium having stored thereon a computer program. When the program is executed by the processor, the following process for data transmission indication on the network side is implemented:

Receiving downlink data of the user equipment delivered by the core network;

Embodiments of the present disclosure also provide a computer readable storage medium having stored thereon a computer program that, when executed by a processor, implements the following process for data transmission indication on the network side:

The paging method of the embodiment of the present disclosure can trigger the core network element to send a paging message to the UE to notify the UE to receive downlink data, avoid data loss, and improve user experience.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings used in the description of the embodiments of the present disclosure will be briefly described. It is obvious that the drawings in the following description are only some embodiments of the present disclosure. Other drawings may also be obtained from those of ordinary skill in the art in view of the drawings.

1 is a schematic diagram showing a paging procedure of an idle state UE in the related art;

2 is a schematic flow chart showing a paging method in some embodiments of the present disclosure;

3 is a schematic flow chart showing an implementation manner of a paging method in some embodiments of the present disclosure;

4 is a schematic flow chart showing another implementation manner of a paging method in some embodiments of the present disclosure;

FIG. 5 is a schematic flowchart diagram of still another implementation manner of a paging method in some embodiments of the present disclosure;

FIG. 6 is a schematic flowchart diagram of still another implementation manner of a paging method in some embodiments of the present disclosure;

FIG. 7 is a schematic flowchart diagram of still another implementation manner of a paging method in some embodiments of the present disclosure;

FIG. 8 is a schematic flowchart diagram of another paging method in some embodiments of the present disclosure;

FIG. 9 is a schematic structural diagram of a base station in some embodiments of the present disclosure;

FIG. 10 is a schematic structural diagram of a core network element in some embodiments of the present disclosure.

detailed description

The technical solutions in the embodiments of the present disclosure are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present disclosure. It is obvious that the described embodiments are a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present disclosure without departing from the inventive scope are the scope of the disclosure.

First, the embodiment of the present disclosure provides a paging mechanism for a deactivated UE. When receiving the downlink data of the UE sent by the core network, the base station triggers the core network to send a paging message to the corresponding UE to notify the UE to receive the downlink. Data to avoid data loss and improve user experience.

When the UE is in the deactivated state, there is usually no radio resource control link between the base station and the radio resource control link between the base station and the base station is suspended, that is, the base station and the UE cannot pass the wireless connection. The resource control link delivers downlink data.

In the embodiment of the present disclosure, the basic paging area may be a transmission point in a cell, a cell, or a cell cluster targeting a base station, which is not limited by the disclosure.

As shown in FIG. 2, in some embodiments of the present disclosure, a paging method is provided, which is applied to a base station, where the paging method includes:

Step 201: Receive downlink data of the user equipment delivered by the core network.

Step 202: Trigger a paging process in which the core network element sends a paging message to the user equipment, to notify the user equipment to receive the downlink data.

Specifically, the paging mechanism provided in some embodiments of the present disclosure can trigger a paging procedure for sending a paging message to the UE even if the downlink data cannot be sent through the RRC link between the base station and the user equipment UE.

In this way, the paging method in some embodiments of the present disclosure can trigger the core network element to send a paging message to the UE to notify the UE to receive downlink data, avoid data loss, and improve user experience.

When the downlink data is not transmitted between the base station and the UE through the RRC link, there is usually no RRC link between the base station and the UE, or the RRC link between the base station and the UE is suspended.

The paging method in some embodiments of the present disclosure is described below on the premise that the downlink data cannot be sent through the RRC link between the base station and the UE. However, the paging method in the embodiment of the present disclosure does not limit.

In some embodiments of the present disclosure, the paging procedure for the base station to trigger the sending of the paging message to the UE may be implemented in different manners. The two methods are described in detail below.

method one

The base station directly sends a paging trigger message carrying the identifier of the UE to the core network element, and triggers the core network element to be in the basic paging area included in the paging area of the UE, according to the identifier of the UE. The UE sends the paging message.

The paging trigger message may be a paging request message or a downlink data arrival request message, which is not limited by the disclosure, and may be any other message that can trigger the core network element to send a paging message. Yes, such as a separately constructed message, but using the paging request message or the downlink data arrival request message in the related art can reduce the complexity of the system design.

In a specific embodiment of the present disclosure, the core network element may be specifically an MME, but may also be other network elements.

In the first mode, the core network element sends the paging area of the UE when sending the paging message to the UE, and sends the paging area in all the basic paging areas included in the obtained paging area of the UE. Paging message.

Hereinafter, it will be described in detail by way of specific examples.

A schematic flowchart of an implementation manner of a paging method in some embodiments of the present disclosure is shown in FIG. 3, and includes:

Step 31: Receive downlink data of the user equipment delivered by the core network.

Step 32: When there is no RRC link between the base station and the UE (or the RRC link between the UE is suspended), the base station sends a paging request message carrying the identifier of the UE to the MME;

Step 33: The MME sends a paging message to the UE identified by the identifier of the UE in all basic paging areas included in the paging area of the UE.

Way two

In the first method, the core network element is directly requested to perform paging in all basic paging areas included in the paging area of the UE. However, in many cases, the base station may be able to page to the UE within its basic paging area. In this case, in order to speed up the paging speed and avoid invalid paging, in the second mode, the base station first sends a paging message in its first basic paging area, and if the response message of the UE is received, Then, the paging ends, and if the response message of the UE is not received, the paging trigger message carrying the identifier of the UE is sent to the core network element, and the core network element is triggered in the second basic paging area. Sending a paging message to the UE according to the identifier of the UE, to notify the UE to receive downlink data.

The paging trigger message may be a paging request message or a downlink data arrival request message, which is not limited by the disclosure. The core network element may be specifically an MME.

In some embodiments of the present disclosure, the first basic paging area may be:

All basic paging areas attributed to the base station; or

Among the basic paging areas included in the paging area of the user equipment, the basic paging area belongs to the base station.

It should be noted that, in order to improve paging efficiency, the core network may configure a paging area smaller than the tracking area for the UE, and perform paging in the paging area. The paging area of the UE may not be recorded in the base station, or may be recorded in the base station.

Generally, when the paging area of the UE is not recorded in the base station, the first basic paging area is all the basic paging areas belonging to the base station, and when the paging area of the UE is recorded in the base station, The first basic paging area is a basic paging area belonging to the base station among all the basic paging areas included in the paging area of the UE.

In some embodiments of the present disclosure, the second basic paging area may be:

All of the basic paging areas included in the paging area of the user equipment; or

Among the basic paging areas included in the paging area of the user equipment, a basic paging area other than the first basic paging area.

As described above, when the core network element sends a paging message in the second basic paging area, the paging area of the UE is determined, and in order to speed up the paging speed, the paging of the UE is recorded in the base station. In the time zone, the paging area of the UE may be directly informed to the core network element by carrying the paging trigger message, so that the paging area of the UE is not specifically searched.

Hereinafter, the paging method in the second mode will be described in detail by using different drawings.

FIG. 4 is a schematic flowchart diagram of another implementation manner of a paging method in some embodiments of the present disclosure, where the paging method includes:

Step 41: Receive downlink data of the user equipment delivered by the core network.

Step 42: There is no RRC link between the base station and the UE (or the RRC chain with the UE) When the road is suspended, the base station sends a paging message in all basic paging areas belonging to itself;

Step 43: If the response message of the UE is not received, the base station sends a paging request message carrying the identifier of the UE to the MME;

Step 44: The MME sends a paging message to the UE identified by the identifier of the UE in all basic paging areas included in the paging area of the UE.

FIG. 5 is a schematic flowchart diagram of still another implementation manner of a paging method in some embodiments of the present disclosure, where the paging method includes:

Step 51: Receive downlink data of the user equipment delivered by the core network.

Step 52: When there is no RRC link between the base station and the UE (or the RRC link with the UE is suspended), the base station sends a paging message in all basic paging areas belonging to itself, in the base station The paging area of the UE is not recorded;

Step 53: If the response message of the UE is not received, the base station sends a paging request message carrying the identifier of the UE to the MME;

Step 54: The MME sends an identifier to the UE in all basic paging areas included in the paging area of the UE, except in all basic paging areas that belong to all basic paging areas of the base station. The identified UE sends a paging message.

FIG. 6 is a schematic flowchart diagram of still another implementation manner of a paging method in some embodiments of the present disclosure, where the paging method is:

Step 61: Receive downlink data of the user equipment delivered by the core network.

Step 62: When there is no RRC link between the base station and the UE (or the RRC link with the UE is suspended), the base station belongs to all the basic paging areas included in the paging area of the UE. Sending a paging message in its basic paging area, where the paging area of the UE is recorded in the base station;

Step 63: If the response message of the UE is not received, the base station sends a paging request message carrying the identifier of the UE and the paging area of the UE to the MME;

Step 64: The MME sends a paging message to the UE identified by the identifier of the UE in all basic paging areas included in the paging area of the UE.

FIG. 7 is a schematic flowchart diagram of still another implementation manner of a paging method in some embodiments of the present disclosure, where the paging method includes:

Step 71: Receive downlink data of the user equipment delivered by the core network.

Step 72: When there is no RRC link between the base station and the UE (or the RRC link with the UE is suspended), the base station belongs to all the basic paging areas included in the paging area of the UE. Sending a paging message in its basic paging area, where the paging area of the UE is recorded in the base station;

Step 73: If the response message of the UE is not received, the base station sends a paging request message carrying the identifier of the UE and the paging area of the UE to the MME;

Step 74: The MME is in the basic paging area included in the paging area of the UE, except in the basic paging area other than the basic paging area of the base station that has sent the paging message. The UE identified by the identifier of the UE sends a paging message.

As shown in FIG. 8, another paging method is provided in some embodiments of the present disclosure, and is applied to a core network element, where the paging method includes:

Step 801: Receive a paging trigger message that is sent by the base station and carries an identifier of the user equipment.

Step 802: Send, in the second basic paging area, a paging message to the user equipment according to the identifier of the user equipment, to notify the user equipment to receive downlink data that is sent by the core network to the base station.

The paging method shown in FIG. 8 can trigger the core network element to send a paging message to the UE to notify the UE to receive downlink data, avoid data loss, and improve user experience.

The paging trigger message may be a paging request message or a downlink data arrival request message.

In this embodiment of the disclosure, the second basic paging area may be:

The basic paging area except the first basic paging area in which the paging message has been transmitted by the base station among all the basic paging areas included in the paging area of the user equipment.

And the first basic paging area can be:

All basic paging areas attributed to the base station; or

Specifically, when the paging area of the user equipment is recorded in the base station, the paging area of the user equipment is carried by the paging trigger message.

The core network element is specifically a mobility management entity.

Referring to FIG. 9, a base station is provided in some embodiments of the present disclosure, and the paging shown in FIG. Correspondingly, the base station includes:

The first receiving module 91 is configured to receive downlink data of the user equipment delivered by the core network;

The triggering module 92 is configured to trigger a paging process in which the core network element sends a paging message to the user equipment, to notify the user equipment to receive the downlink data.

The base station in some embodiments of the present disclosure can trigger the core network element to send a paging message to the UE to notify the UE to receive downlink data, avoid data loss, and improve user experience.

In the embodiment of the present disclosure, the triggering module 92 includes:

a first sending unit, configured to send a paging trigger message carrying an identifier of the user equipment to a core network element, and trigger all basic paging areas included in a paging area of the user equipment by the core network element Sending, by the user equipment, the paging message according to the identifier of the user equipment.

In the embodiment of the present disclosure, the triggering module 92 includes:

a second sending unit, configured to send the paging message in a first basic paging area determined by the base station;

a third sending unit, configured to send a paging trigger message carrying the identifier of the user equipment to a core network element when the response message of the user equipment is not received, triggering the core network element to be in a second basic Sending, in the paging area, the paging message to the user equipment according to the identifier of the user equipment.

In this embodiment of the disclosure, the first basic paging area may be:

All basic paging areas attributed to the base station; or

And the second basic paging area can be:

Specifically, the core network element may be a mobility management entity.

As shown in FIG. 10, in some embodiments of the present disclosure, a core network element is provided, which corresponds to the paging method shown in FIG. 7. The core network element includes:

The second receiving module 101 is configured to receive a paging trigger message that is sent by the base station and that carries an identifier of the user equipment.

The sending module 102 is configured to send, in the second basic paging area, a paging message to the user equipment according to the identifier of the user equipment, to notify the user equipment to receive downlink data that is sent by the core network to the base station. .

The core network element in the embodiment of the present disclosure can be triggered to send a paging message to the UE to notify the UE to receive downlink data, avoid data loss, and improve user experience.

In this embodiment of the disclosure, the second basic paging area may be:

And the first basic paging area can be:

All basic paging areas attributed to the base station; or

Specifically, the core network element is a mobility management entity.

It is to be understood that the term "comprises", "comprising", or any other variants thereof, is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes those elements. It also includes other elements that are not explicitly listed, or elements that are inherent to such a process, method, article, or device. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in the process, method, item, or device that comprises the element.

The above-mentioned serial numbers of the embodiments of the present disclosure are merely for the description, and do not represent the advantages and disadvantages of the embodiments.

Those skilled in the art can clearly understand the above by the description of the above embodiments. The embodiment method can be implemented by means of software plus a necessary general hardware platform, of course, also through hardware, but in many cases the former is a better implementation. Based on such understanding, portions of the technical solutions of the present disclosure that contribute substantially or to the prior art may be embodied in the form of a software product stored in a storage medium (eg, ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the methods described in various embodiments of the present disclosure.

The above description is only a preferred embodiment of the present disclosure, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present disclosure. It should be considered as the scope of protection of this disclosure.

Claims

A paging method is applied to a base station, and the method includes:

Receiving downlink data of the user equipment delivered by the core network;

And triggering a paging process in which the core network element sends a paging message to the user equipment.
The paging method according to claim 1, wherein the paging process for triggering the core network element to send a paging message to the user equipment specifically includes:

Sending a paging trigger message carrying the identifier of the user equipment to the core network element, triggering the core network element to be in all basic paging areas included in the paging area of the user equipment, according to the user equipment The identifier sends the paging message to the user equipment.
The paging method according to claim 1, wherein the paging process for triggering the core network element to send a paging message to the user equipment specifically includes:

Transmitting the paging message in a first basic paging area determined by the base station;

When the response message of the user equipment is not received, the paging trigger message carrying the identifier of the user equipment is sent to the core network element, and the core network element is triggered in the second basic paging area, according to the The identifier of the user equipment sends the paging message to the user equipment.
The paging method according to claim 3, wherein said first basic paging area is:

All basic paging areas attributed to the base station; or

Among the basic paging areas included in the paging area of the user equipment, the basic paging area belongs to the base station.
The paging method according to claim 3, wherein said second basic paging area is:

All of the basic paging areas included in the paging area of the user equipment; or

Among the basic paging areas included in the paging area of the user equipment, a basic paging area other than the first basic paging area.
The paging method according to claim 5, wherein when the paging area of the user equipment is recorded in the base station, the paging area of the user equipment is carried by the paging trigger message.
A paging method is applied to a core network element, and the method includes:

Receiving, by the base station, a paging trigger message that carries an identifier of the user equipment;

Sending to the user equipment according to the identifier of the user equipment in the second basic paging area The paging message is sent to notify the user equipment to receive downlink data that is sent by the core network to the base station.
The paging method according to claim 7, wherein said second basic paging area is:

All of the basic paging areas included in the paging area of the user equipment; or

The basic paging area except the first basic paging area in which the paging message has been transmitted by the base station among all the basic paging areas included in the paging area of the user equipment.
The paging method according to claim 8, wherein said first basic paging area is:

All basic paging areas attributed to the base station; or

Among the basic paging areas included in the paging area of the user equipment, the basic paging area belongs to the base station.
The paging method according to claim 8, wherein when a paging area of the user equipment is recorded in the base station, a paging area of the user equipment is carried by the paging trigger message.
The paging method according to any one of claims 7 to 10, wherein the core network element is a mobility management entity.
A base station comprising:

a first receiving module, configured to receive downlink data of the user equipment delivered by the core network;

The triggering module is configured to trigger a paging process in which the core network element sends a paging message to the user equipment.
The base station according to claim 12, wherein the triggering module comprises:

a first sending unit, configured to send a paging trigger message carrying an identifier of the user equipment to a core network element, and trigger all basic paging areas included in a paging area of the user equipment by the core network element Sending, by the user equipment, the paging message according to the identifier of the user equipment.
The base station according to claim 12, wherein the triggering module comprises:

a second sending unit, configured to send the paging message in a first basic paging area determined by the base station;

a third sending unit, configured to send a paging trigger message carrying the identifier of the user equipment to a core network element when the response message of the user equipment is not received, triggering the core network element to be in a second basic Sending, in the paging area, the paging message to the user equipment according to the identifier of the user equipment.
The base station according to claim 14, wherein said user is recorded in said base station When the paging area of the device is used, the paging area of the user equipment is carried by the paging trigger message.
A core network element, including:

a second receiving module, configured to receive a paging trigger message that is sent by the base station and that carries an identifier of the user equipment;

The sending module is configured to send, in the second basic paging area, a paging message to the user equipment according to the identifier of the user equipment, to notify the user equipment to receive downlink data that is sent by the core network to the base station.
The core network element of claim 16, wherein a paging area of the user equipment is carried by the paging trigger message when a paging area of the user equipment is recorded in the base station.
The core network element according to any one of claims 16-17, wherein the core network element is a mobility management entity.
A base station includes: a processor, a memory, and a transceiver, wherein:

The processor is configured to read a program in the memory and perform the following process:

Receiving downlink data of the user equipment delivered by the core network;

Trimming a paging process for the core network element to send a paging message to the user equipment,

The transceiver is configured to receive and transmit data,

The memory is capable of storing data used by the processor when performing operations.
A core network element includes: a processor, a memory, and a transceiver, wherein:

The processor is configured to read a program in the memory and perform the following process:

Receiving, by the base station, a paging trigger message that carries an identifier of the user equipment;

Sending, in the second basic paging area, a paging message to the user equipment according to the identifier of the user equipment, to notify the user equipment to receive downlink data that is sent by the core network to the base station,

The transceiver is configured to receive and transmit data,

The memory is capable of storing data used by the processor when performing operations.
A computer readable storage medium having stored thereon a computer program that, when executed by a processor, implements the following process for data transmission indication on the network side:

Receiving downlink data of the user equipment delivered by the core network;

And triggering a paging process in which the core network element sends a paging message to the user equipment.
A computer readable storage medium having stored thereon a computer program that is processed When the device is executed, the following process for data transmission indication on the network side is implemented:

Receiving, by the base station, a paging trigger message that carries an identifier of the user equipment;

And sending, in the second basic paging area, a paging message to the user equipment according to the identifier of the user equipment, to notify the user equipment to receive downlink data that is sent by the core network to the base station.