WO2016054900A1

WO2016054900A1 - Switching method and system, micro station gateway, and computer storage medium

Info

Publication number: WO2016054900A1
Application number: PCT/CN2015/076009
Authority: WO
Inventors: 郑泽榕
Original assignee: 中兴通讯股份有限公司
Priority date: 2014-10-10
Filing date: 2015-04-07
Publication date: 2016-04-14
Also published as: CN105578536A; CN105578536B; JP2017531398A

Abstract

Disclosed is a switching method, comprising: a micro station gateway (HeNB GW) receives a switching request message; a switching identifier carried in the switching request message is obtained; the switching request message is sent to a target base station according to the switching identifier. Also disclosed are a micro station gateway, a switching system and a computer storage medium.

Description

Switching method, system, micro-station gateway and computer storage medium

Technical field

The present invention relates to a handover technology of a wireless communication network of a fourth generation mobile communication system, and in particular, to a handover method, system, micro-station gateway, and computer storage medium of a Long Term Evolution (LTE) macro-micro-ad-hoc network.

Background technique

The LTE project of The3rd Generation Partnership Project (3GPP) in the field of wireless communication is the largest research project initiated by 3GPP in recent years. LTE is an evolution technology from 3G to 4G. In the modern wireless communication field, on the basis of the original macro station planning networking, the demand for distributed micro-station networking is also increasing.

In the LTE macro-micro-ad-hoc network, the base station cannot detect whether the neighboring cell is a macro eNB (eNB) or a home eNB (HeNB), so that when the base station initiates a handover request to the neighboring cell, the default is neighbor. The base station of the area and the base station that initiates the handover request message are of the same type, and the base station that initiates the handover request message fills in the handover request message according to the format of its identity (ID), so that if the base station of the neighboring cell initiates the handover request message If the type of the base station is inconsistent, the handover fails due to incorrect filling of the content of the handover request message, and thus the problem that the LTE macro-micro-ad-hoc network has poor compatibility with the HeNB occurs.

Summary of the invention

In order to solve the existing technical problems, embodiments of the present invention provide a handover method, a system, a micro-station gateway, and a computer storage medium.

An embodiment of the present invention provides a handover method, where the method includes:

a Home Station Debit (HeNB GW) receives a handover request message;

Obtaining a handover identifier carried in the handover request message;

And transmitting the handover request message to the target base station according to the handover identifier.

In the above implementation, the handover request message is sent by the eNB, and the acquiring the handover identifier carried in the handover request message includes:

Extracting a container from the switch request message;

Decoding the Container to obtain a target cell ID.

In the above implementation, the sending the handover request message to the target base station according to the handover identifier includes: sending the handover request message to the same identifier ID as the target cell ID according to the target cell ID Target base station.

In the above implementation, before the HeNB GW receives the handover request message, the method further includes:

The eNB fills in the target base station identifier (Target ID) according to the macro station identifier eNB ID format, and sends the handover request message carrying the Target ID to the Mobility Management Entity (MME);

The MME finds a HeNB GW having the same virtual macro station identifier (V-eNB ID) as the Target ID, and sends a handover request message to the HeNB GW, where the V-eNB ID is configured. The identity of the HeNB GW.

In the above implementation, the handover request message is sent by the micro-station HeNB, and the acquiring the handover identifier carried in the handover request message includes: acquiring the Target ID carried in the handover request message.

In the foregoing implementation, the sending, by the handover identifier, the handover request message to the target base station includes:

Converting the Target ID from a micro-station identifier (HeNB ID) format to an eNB ID format as a converted Target ID;

Sending a handover request message carrying the converted Target ID to the MME, so that The MME acquires an eNB ID from the converted Target ID, and transmits the handover request message to a target base station having the same ID as the eNB ID.

In the above implementation, before the HeNB GW receives the handover request message, the method further includes: the HeNB filling in the Target ID according to the HeNB ID format, and sending a handover request message carrying the Target ID to the HeNB GW.

An embodiment of the present invention provides a HeNB GW, where the HeNB GW includes: a receiving module, an obtaining module, and a sending module, where:

The receiving module is configured to receive a handover request message;

The acquiring module is configured to acquire a handover identifier carried in the handover request message;

The sending module is configured to send the handover request message to the target base station according to the handover identifier.

In the foregoing implementation, the handover request message is sent by an eNB, and the acquiring module is configured to:

Extracting a Container from the handover request message;

The container is decoded to obtain a target cell ID.

In the above implementation, the sending module is configured to send the handover request message to a target base station having the same ID as the target cell ID according to the target cell ID.

In the above implementation, the handover request message is sent by the HeNB, and the acquiring module is configured to acquire the Target ID carried in the handover request message.

In the above implementation, the sending module is configured to:

Converting the Target ID from a HeNB ID format to an eNB ID format as a converted Target ID;

Transmitting a handover request message carrying the converted Target ID to the MME, so that the MME obtains an eNB ID from the converted Target ID, and sends the handover request message to have the same eNB ID. The target base station of the ID.

An embodiment of the present invention further provides a handover system, where the system includes: an eNB, an MME, a HeNB GW, and a HeNB, where:

The eNB is configured to fill in the Target ID according to the eNB ID format, and send a handover request message carrying the Target ID to the MME;

The MME is configured to find a HeNB GW having the same V-eNB ID as the Target ID, and send a handover request message to the HeNB GW;

The HeNB GW is configured to extract a Container from the handover request message, and decode the Container to obtain a target cell ID, and send the handover request message to the same as the target cell ID according to the target cell ID. HeNB of the ID;

The HeNB is configured to receive the handover request message.

An embodiment of the present invention further provides a handover system, where the system includes: a HeNB, a HeNB GW, an MME, and an eNB, where:

The HeNB is configured to fill in the Target ID according to the HeNB ID format, and send a handover request message carrying the Target ID to the HeNB GW;

The HeNB GW is configured to convert the Target ID from the HeNB ID format to the eNB ID format as the translated Target ID, and send a handover request message carrying the converted Target ID to the MME;

The MME is configured to acquire an eNB ID from the converted Target ID, and send the handover request message to an eNB having the same ID as the eNB ID;

The eNB is configured to receive the handover request message.

An embodiment of the present invention further provides a computer storage medium, the computer storage medium comprising a set of instructions that, when executed, cause at least one processor to perform the switching method described above.

The handover method, the system, the HeNB GW, and the computer storage medium provided by the embodiment of the present invention, the HeNB GW receives the handover request message, and acquires the handover identifier carried in the handover request message. And transmitting the handover request message to the target base station according to the handover identifier. In this way, the base station that initiates the handover request message can send the handover request message to the target base station only by filling in the handover request message according to the format of the ID, thereby successfully implementing the handover function of the LTE macro-micro-ad-hoc network. Therefore, the present invention The embodiment improves the compatibility of the LTE macro-micro ad hoc network to the HeNB.

DRAWINGS

In the drawings, which are not necessarily to scale, the Like reference numerals with different letter suffixes may indicate different examples of similar components. The drawings generally illustrate the various embodiments discussed herein by way of example and not limitation.

1 is a schematic flowchart of a handover method according to an embodiment of the present invention;

2 is a schematic structural diagram of a structure of a HeNB GW according to an embodiment of the present invention;

3 is a schematic structural diagram of a switching system according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a switching system according to Embodiment 2 of the present invention.

detailed description

In order to make the objects, technical solutions and advantages of the present invention more comprehensible, the present invention will be further described in detail with reference to the accompanying drawings.

In various embodiments of the present invention, the HeNB GW receives the handover request message, acquires the handover identifier carried in the handover request message, and sends the handover request message to the target base station according to the handover identifier.

FIG. 1 is a schematic flowchart of a handover method according to an embodiment of the present invention. As shown in FIG. 1 , a handover method according to an embodiment of the present invention includes the following steps:

Step 101: The HeNB GW receives a handover request message.

Here, it should be noted that the handover request message received by the HeNB GW may be sent by the eNB or may be sent by the HeNB.

Steps 102 to 103: Acquire a handover identifier carried in the handover request message, and send the handover request message to the target base station according to the handover identifier.

Here, if the handover request message is sent by the eNB, the acquiring the handover identifier carried in the handover request message includes: extracting a Container from the handover request message; and decoding the Container to obtain a target cell ID; Correspondingly, the sending, according to the handover identifier, the handover request message to the target base station, comprising: sending, according to the target cell ID, the handover request message to a target base station having the same ID as the target cell ID .

It should be noted that, before the step of receiving the handover request message by the HeNB GW, the method may further include: configuring at least one V-eNB ID for the HeNB GW; specifically, the format of the V-eNB ID may be 20 bits, used by the HeNB. The HeNB ID needs to meet the following conditions: the high 20 bits of the HeNB ID and the one V-eNB ID used by the HeNB GW are the same, the HeNB ID is 28 bits, and the V-eNB ID is 8 bits apart, if the HeNB GW is configured. a V-eNB ID, HeNB GW can manage the HeNB ²⁸ months, but in practice, the macro and micro ad hoc network will be thousands of the HeNB, which requires HeNB GW for expansion to manage thousands of the HeNB, also That is, multiple V-eNB IDs are configured for the HeNB GW, and the V-eNB ID is also recorded in the neighbor information of the eNB.

When the handover is required, the eNB fills in the Target ID according to the macro station identity eNB ID format, and sends a handover request message carrying the Target ID to the MME; the MME finds the HeNB GW having the same V-eNB ID as the Target ID. And transmitting a handover request message to the HeNB GW.

In an actual application, the core network includes an MME and a HeNB GW. The access network includes an eNB and an HeNB. The core network and the access network are interconnected through the S1 interface, and are powered on the MME, the HeNB GW, the eNB, and the HeNB. After the normal connection, an S1 connection is established between them. First, at least one V-eNB ID is configured for the HeNB GW. It should be noted that the V-eNB ID is configured according to the eNB ID format, and when the HeNB GW and the MME establish an S1 connection, the HeNB GW Need to MME The S1 establishes a connection request, and the connection request message carries the ID of the HeNB GW, that is, the V-eNB ID. Secondly, when the HeNB establishes an S1 connection with the HeNB GW, the connection request message carries the ID of the HeNB, and the ID of the HeNB is in the HeNB ID format. . The HeNB ID used by the HeNB needs to meet the following conditions: the high 20 bits of the HeNB ID and the one V-eNB ID used by the HeNB GW are the same; finally, after the S1 connection is established between the network elements, the S1 link can be performed on the S1 link. Signaling transmission, such as sending a handover request message.

Here, it should be noted that in the LTE protocol, the eNB ID format is 20 bits, and the HeNB ID format is 28 bits.

Specifically, when the eNB initiates the handover to the HeNB, the eNB first sends the handover request message carrying the Target ID to the MME according to the eNB ID format, that is, the 20-bit Filling Target ID, and the handover request message further includes other information, specifically according to the LTE. The protocol is filled in, for example, including the "Source to Target Transparent Container". However, the MME does not decode the Container. Second, the MME obtains the Target ID in the handover request, and then according to the Target. The ID looks for the HeNB GW, finds the HeNB GW whose V-eNB ID is the same as the Target ID, and then sends a handover request message to the HeNB GW. At this time, the HeNB GW needs to decode the Container in the handover request message, and the Container is defined in the LTE protocol, specifically, the Source eNB to target eNB Transparent Container is an information element that is produced by the source eNB and is transmitted to the Target eNB. For inter-system handovers to E-UTRAN, the Container is transmitted form the external handover source to the target eNB (the transmission container from the source base station to the target base station is information transmitted by the source base station to the target side base station) Element, for the LTE access network global cell for inter-system handover, the container is transmitted from the external handover source to the target base station), that is, for the handover of the LTE system, the target cell ID is the LTE access network global cell identification code (Evolved Universal Terrestrial Radio) The access network Cell Global Identifier (E-UTRAN CGI), that is, the HeNB GW decodes the Container to obtain the target cell ID; in addition, the LTE protocol specifies that the HeNB can only have one cell, because Therefore, the target cell ID is equivalent to the HeNB ID of the HeNB, and finally, the handover request message is sent to the HeNB having the same ID of the HeNB ID.

Here, if the handover request message is sent by the HeNB, the acquiring the handover identifier carried in the handover request message includes: acquiring a Target ID carried in the handover request message; correspondingly, the switching according to the handover The sending the handover request message to the target base station includes: converting the Target ID from a HeNB ID format to an eNB ID format as a converted Target ID; and transmitting a handover request message carrying the converted Target ID to the The MME is configured to enable the MME to acquire an eNB ID from the converted Target ID, and send the handover request message to a target base station having the same ID as the eNB ID.

It should be noted that, before the step of receiving the handover request message by the HeNB GW, the method may further include: the HeNB filling in the Target ID according to a HeNB ID format, and sending a handover request message carrying the Target ID to the The HeNB GW.

Specifically, after the S1 connection is established by the HeNB and the HeNB, the HeNB initiates the handover to the eNB. First, the HeNB fills in the Target ID according to the HeNB ID format, that is, 28 bits, and the target cell ID is specified in the LTE protocol. It is 28bit, where the Target ID is equivalent to the target cell ID, and the handover request message carrying the Target ID is sent to the HeNB GW. Second, the HeNB GW converts the Target ID from the HeNB ID format to the eNB ID format as the converted Target ID. It should be noted that the HeNB ID format is converted into the eNB ID format, that is, according to the definition of the V-eNB ID, the V-eNB ID is 20 bits, and the high 20 bits of the Target ID in the HeNB ID format is extracted as the converted Target ID. When the converted Target ID is 20 bits, the HeNB GW sends a handover request message carrying the converted Target ID to the MME. Finally, the MME obtains the eNB ID from the converted Target ID. It should be noted that the eNB ID is 20 bits. Therefore, the Target ID is equivalent to the eNB ID, and the handover request message is transmitted to the eNB having the same ID as the eNB ID.

As can be seen from the above description, the handover method of the embodiment of the present invention is an LTE macro micro The method of switching the self-organizing network.

In the embodiment of the present invention, the HeNB GW first receives the handover request message, and then acquires the handover identifier carried in the handover request message, and finally sends the handover request message to the target base station according to the handover identifier, so that the base station that initiates the handover request message can be enabled. The handover request message can be sent to the target base station by simply filling in the handover request message according to the format of the ID, and the handover function of the LTE macro-ad hoc network is successfully implemented. Therefore, the embodiment of the present invention improves the LTE macro-self-organized network. Compatibility with HeNB.

2 is a schematic structural diagram of a HeNB GW of an LTE macro-micro-ad-hoc network according to an embodiment of the present invention. As shown in FIG. 2, the composition of the HeNB GW of the LTE macro-micro-ad-hoc network includes: a receiving module 201, and an acquiring module. 202 and a sending module 203; wherein

The receiving module 201 is configured to receive a handover request message.

The obtaining module 202 is configured to acquire a handover identifier carried in the handover request message.

The sending module 203 is configured to send the handover request message to the target base station according to the handover identifier.

In an embodiment, the handover request message is sent by the eNB, and the obtaining module 202 is specifically configured to:

Extracting a Container from the handover request message;

Decoding the Container to obtain a target cell ID;

Correspondingly, the sending module 203 is specifically configured to send the handover request message to the target base station having the same ID as the target cell ID according to the target cell ID.

In an embodiment, the handover request message is sent by the HeNB, and the acquiring module 202 is specifically configured to acquire the Target ID carried in the handover request message.

Correspondingly, the sending module 203 is specifically configured to:

Transmitting a handover request message carrying the converted Target ID to the MME, so that the MME obtains an eNB ID from the converted Target ID, and sends the handover request message to have the same identifier as the eNB ID. The target base station of the ID.

In practical applications, the functions of the receiving module 201, the obtaining module 202, and the sending module 203 may be implemented by a central processing unit (CPU), a microprocessor (MPU), or a digital signal processor (DSP) in the HeNB GW, or Programmable Gate Array (FPGA) implementation.

FIG. 3 is a schematic structural diagram of a switching system according to an embodiment of the present invention. As shown in FIG. 3, the switching system of the first embodiment of the present invention includes: an eNB, an MME, a HeNB GW, and a HeNB, where

The HeNB is configured to receive the handover request message.

Here, it should be noted that the handover system shown in FIG. 3 is a handover system of the LTE macro-micro-ad-hoc network, and implements a scenario in which the eNB initiates a handover request to the HeNB.

4 is a schematic structural diagram of a switching system according to Embodiment 2 of the present invention. As shown in FIG. 4, the switching system of the second embodiment of the present invention includes: HeNB, HeNB GW, MME, and eNB, where:

The HeNB GW is configured to convert the Target ID from a HeNB ID format to an eNB ID The format is used as the converted Target ID, and the handover request message carrying the converted Target ID is sent to the MME;

The eNB is configured to receive the handover request message.

Here, it should be noted that the handover system shown in FIG. 4 is a handover system of the LTE macro-micro ad hoc network, and implements a scenario in which the HeNB initiates a handover request to the eNB.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded into a computer or other programmable data processing device Having a series of operational steps performed on a computer or other programmable device to produce computer-implemented processing such that instructions executed on a computer or other programmable device are provided for implementing one or more processes in a flowchart and/or Or block diagram the steps of a function specified in a box or multiple boxes.

Based on this, an embodiment of the present invention further provides a computer storage medium, where the computer storage medium includes a set of instructions that, when executed, cause at least one processor to perform the above-described switching method.

The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Claims

A switching method, the method comprising:

The micro station gateway HeNB GW receives the handover request message;

Obtaining a handover identifier carried in the handover request message;

And transmitting the handover request message to the target base station according to the handover identifier.
The method of claim 1, wherein the handover request message is sent by the macro station eNB, and the acquiring the handover identifier carried in the handover request message comprises:

Extracting a container Container from the switch request message;

Decoding the Container to obtain a target cell identifier target cell ID.
The method according to claim 2, wherein the sending the handover request message to the target base station according to the handover identifier comprises: transmitting the handover request message to the target with the target cell ID The target base station with the same ID ID as the cell ID.
The method according to claim 2 or 3, wherein before the HeNB GW receives the handover request message, the method further includes:

The eNB fills in the target base station identifier Target ID according to the macro station identifier eNB ID format, and sends the handover request message carrying the Target ID to the mobility management entity MME;

The MME finds a HeNB GW having the same virtual macro station identifier V-eNB ID as the Target ID, and sends a handover request message to the HeNB GW, where the V-eNB ID is an identifier assigned to the HeNB GW.
The method of claim 1, wherein the handover request message is sent by the micro-station HeNB, and the acquiring the handover identifier carried in the handover request message comprises: acquiring a Target ID carried in the handover request message.
The method of claim 5, wherein the transmitting the handover request message to the target base station according to the handover identifier comprises:

Converting the Target ID from the micro-station identifier HeNB ID format to the eNB ID format as a transfer The changed Target ID;

Transmitting a handover request message carrying the converted Target ID to the MME, so that the MME obtains an eNB ID from the converted Target ID, and sends the handover request message to have the same identifier as the eNB ID. The target base station of the ID.
The method according to claim 5 or 6, wherein before the HeNB GW receives the handover request message, the method further includes: the HeNB filling in the Target ID according to a HeNB ID format, and carrying the A handover request message of the Target ID is sent to the HeNB GW.
A micro-station gateway HeNB GW, the HeNB GW includes: a receiving module, an obtaining module, and a sending module; wherein:

The receiving module is configured to receive a handover request message;

The acquiring module is configured to acquire a handover identifier carried in the handover request message;

The sending module is configured to send the handover request message to the target base station according to the handover identifier.
The micro-station gateway according to claim 8, wherein the handover request message is sent by an eNB, and the acquisition module is configured to:

Extracting a Container from the handover request message;

The container is decoded to obtain a target cell ID.
The micro-station gateway according to claim 9, wherein the transmitting module is configured to transmit the handover request message to a target base station having the same ID as the target cell ID according to the target cell ID.
The micro-station gateway according to claim 8, wherein the handover request message is sent by the HeNB, and the acquiring module is configured to acquire a Target ID carried in the handover request message.
The micro-station gateway of claim 11 wherein said transmitting module is configured to:

Converting the Target ID from the HeNB ID format to the eNB ID format as the converted Target ID;

Transmitting a handover request message carrying the converted Target ID to the MME, so that the MME obtains an eNB ID from the converted Target ID, and sends the handover request message to have the same eNB ID. The target base station of the ID.
A handover system, the system comprising an eNB, an MME, a HeNB GW, and a HeNB, where:

The eNB is configured to fill in the Target ID according to the eNB ID format, and send a handover request message carrying the Target ID to the MME;

The MME is configured to find a HeNB GW having the same V-eNB ID as the Target ID, and send a handover request message to the HeNB GW;

The HeNB GW is configured to extract a Container from the handover request message, and decode the Container to obtain a target cell ID, and send the handover request message to the same as the target cell ID according to the target cell ID. HeNB of the ID;

The HeNB is configured to receive the handover request message.
A handover system, the system comprising a HeNB, a HeNB GW, an MME, and an eNB, where:

The HeNB is configured to fill in the Target ID according to the HeNB ID format, and send a handover request message carrying the Target ID to the HeNB GW;

The HeNB GW is configured to convert the Target ID from the HeNB ID format to the eNB ID format as the translated Target ID, and send a handover request message carrying the converted Target ID to the MME;

The MME is configured to acquire an eNB ID from the converted Target ID, and send the handover request message to an eNB having the same ID as the eNB ID;

The eNB is configured to receive the handover request message.
A computer storage medium, the computer storage medium comprising a set of instructions When the instructions are executed, at least one processor is caused to perform the handover method according to any one of claims 1 to 3, 5, and 6.