WO2019095144A1

WO2019095144A1 - Method and device for implementing mobile network system handover, and storage medium

Info

Publication number: WO2019095144A1
Application number: PCT/CN2017/111113
Authority: WO
Inventors: 刘建华
Original assignee: Oppo广东移动通信有限公司
Priority date: 2017-11-15
Filing date: 2017-11-15
Publication date: 2019-05-23
Also published as: CN110731101B; CN110731101A; CN112822737A; WO2019095553A1; CN112822737B

Abstract

Disclosed are a method and device for implementing mobile network system handover, and a storage medium. For example, when it is determined that a UE needs to perform a handover of a core network from a first core network to a second core network without changing the physical location of a base station, an RAN may send a handover request message to a management device, the handover request message carrying handover instruction information, so that the management device completes the handover and the like according to the handover instruction information. Applying the solution of the present invention can ensure that, when a UE needs to perform a handover of a core network from a first core network to a second core network without changing the physical location of a base station, the handover is smoothly completed.

Description

Method, device and storage medium for realizing mobile network system switching

Technical field

The present invention relates to mobile network technologies, and in particular, to a method, device and storage medium for implementing handover of a mobile network system.

Background technique

In the 5G era, the Next Generation Radio Access Network (NG-RAN) may include scenarios in which the gNB and the eNB access the fifth generation mobile communication core network (5GC) simultaneously or separately.

In this scenario, when the user equipment (UE) accesses the 5GC through the enterprise long-term evolution (eLTE) eNB, the UE needs to switch from the eLTE base station to the LTE base station for some reason, but these two The base stations are physically the same base station, that is, the source base station and the target base station are the same base station.

That is to say, the handover performed is a handover in which the physical location of the base station is unchanged and the core network changes, for example, switching from the 5G core network 5GC to the 4G core network evolution packet core network (EPC).

FIG. 1 is a schematic diagram of an existing normal handover procedure. As shown in FIG. 1, in step 1, the NG-RAN sends a Handover Require message to the Access Management Function Device (AMF), which carries the target base station identity (Target ID), ie, the eNB ID of the base station itself. Etc. Because the Target ID is the same as the source ID, the AMF considers this to be a failure scenario, which prevents the handover from proceeding smoothly.

Summary of the invention

In view of this, the present invention provides a method, device, and storage medium for implementing handover of a mobile network system.

The specific technical solutions are as follows:

A method for implementing handover of a mobile network system, comprising:

When it is determined that the UE needs to perform the physical location of the base station and the core network changes from the first core network to the second core network, the RAN sends a handover request message to the management device, where the handover request message carries the handover indication information, so that The management device completes the handover according to the handover indication information.

A method for implementing handover of a mobile network system, comprising:

When it is determined that the UE needs to perform the physical location change of the base station and the core network changes from the first core network to the second core network, the RAN sends a handover request message to the management device, where the handover request message carries the target base station identifier, so that After the management device determines that the target base station identifier is consistent with the source base station identifier, the handover is completed.

A method for implementing handover of a mobile network system, comprising:

When it is determined that the UE needs to perform the physical location change of the base station and the core network changes from the first core network to the second core network, the RAN notifies the UE to release the connection with the base station;

When the UE re-initiates the connection, the RAN selects the non-access stratum NAS connection mode access corresponding to the second core network for the UE.

A method for implementing handover of a mobile network system, comprising:

When it is determined that the UE needs to perform the physical location change of the base station and the core network changes from the first core network to the second core network, the RAN sends a handover request message to the management device, where the handover request message carries the target base station identifier, so that The management device completes the handover according to the target base station identifier, where the target base station identifier is another base station identifier corresponding to the mapped source base station identifier.

A method for implementing handover of a mobile network system, comprising:

The management device acquires the RAN to determine that the UE needs to perform the physical location of the base station unchanged while the core network The handover request message sent by the first core network to the handover of the second core network, where the handover request message carries the handover indication information;

The management device completes the handover according to the handover indication information.

A method for implementing handover of a mobile network system, comprising:

The management device acquires a handover request message that is sent by the RAN when the UE needs to perform the physical location change of the base station and the core network changes from the first core network to the second core network, where the handover request message carries the target base station identifier;

The management device determines that the target base station identifier is consistent with the source base station identifier, and completes the handover.

A method for implementing handover of a mobile network system, comprising:

The management device acquires a handover request message that is sent by the RAN when the UE needs to perform the physical location change of the base station and the core network changes from the first core network to the second core network, where the handover request message carries the target base station identifier. The target base station identifier is another base station identifier corresponding to the mapped source base station identifier;

The management device completes the handover according to the target base station identifier.

A method for implementing handover of a mobile network system, comprising:

When the physical location of the base station needs to be changed and the core network changes from the first core network to the second core network, the UE releases the connection with the base station according to the notification of the RAN;

The UE re-initiates the connection, so that the RAN selects the NAS connection mode access corresponding to the second core network for the UE.

A next generation radio access network device, comprising: a first sending unit;

The first sending unit is configured to send a handover request message to the management device when determining that the UE needs to perform the physical location change of the base station and the core network changes from the first core network to the second core network, the handover request message Carrying switching indication information for the management device The switching is completed according to the switching indication information.

A next generation radio access network device, comprising: a second sending unit;

The second sending unit is configured to send a handover request message to the management device when determining that the UE needs to perform the physical location change of the base station and the core network changes from the first core network to the second core network, the handover request message The target base station identifier is carried in, so that the management device determines that the target base station identifier is consistent with the source base station identifier, and completes the handover.

A next generation radio access network device, comprising: a third sending unit;

The third sending unit is configured to send a handover request message to the management device when determining that the UE needs to perform the physical location change of the base station and the core network changes from the first core network to the second core network, the handover request message The target base station identifier is carried in, so that the management device completes the handover according to the target base station identifier, where the target base station identifier is another base station identifier corresponding to the mapped source base station identifier.

A next generation radio access network device, comprising: a notification unit and an access unit;

The notifying unit is configured to notify the UE to release the connection with the base station when determining that the UE needs to perform the physical location change of the base station and the core network changes from the first core network to the second core network;

The access unit is configured to select, when the UE re-initiates a connection, access the NAS connection mode corresponding to the second core network.

A management device includes: a first acquiring unit and a first switching unit;

The first acquiring unit is configured to acquire a handover request message that is sent by the RAN when the eNB determines that the physical location of the base station is unchanged and the core network changes from the first core network to the second core network, where the handover request message is sent. Carrying handover indication information;

The first switching unit is configured to complete the handover according to the handover indication information.

A management device includes: a second acquiring unit and a second switching unit;

The second acquiring unit is configured to acquire a handover request message that is sent by the RAN when the eNB determines that the physical location of the base station is unchanged and the core network changes from the first core network to the second core network, where the handover request message is sent. Carrying the target base station identifier;

The second switching unit is configured to complete the handover after determining that the target base station identifier is consistent with the source base station identifier.

A management device includes: a third obtaining unit and a third switching unit;

The third acquiring unit is configured to acquire a handover request message that is sent by the RAN when the eNB determines that the physical location of the base station is unchanged and the core network changes from the first core network to the second core network, where the handover request message is sent. Carrying the target base station identifier, where the target base station identifier is another base station identifier corresponding to the mapped source base station identifier;

The third switching unit is configured to complete the handover according to the target base station identifier.

A user equipment, comprising: a release unit and a connection unit;

The releasing unit is configured to release the connection between the user equipment and the base station according to the notification of the RAN when the user equipment needs to perform the physical location change of the base station and the core network changes from the first core network to the second core network. ;

The connecting unit is configured to re-initiate the connection, so that the RAN selects a NAS connection mode corresponding to the second core network for the user equipment to access.

A computer apparatus comprising a memory, a processor, and a computer program stored on the memory and operative on the processor, the processor implementing the method as described above.

A computer readable storage medium having stored thereon a computer program that, when executed by a processor, implements a method as described above.

Based on the foregoing description, it can be seen that, by using the solution of the present invention, the handover indication information is carried in the handover request message or the UE is re-accessed to other core networks, thereby ensuring that the UE needs to perform the physical location of the base station unchanged. When the network changes from the first core network to the second core network, the handover proceeds smoothly.

DRAWINGS

FIG. 1 is a schematic diagram of an existing normal handover procedure.

2 is a schematic diagram of each base station identifier and corresponding network entity according to the present invention.

FIG. 3 is a schematic structural diagram of a first embodiment of a next-generation radio access network device according to the present invention.

FIG. 4 is a schematic structural diagram of a second embodiment of a next-generation radio access network device according to the present invention.

FIG. 5 is a schematic structural diagram of a third embodiment of a next-generation radio access network device according to the present invention.

FIG. 6 is a schematic structural diagram of a fourth embodiment of a next-generation radio access network device according to the present invention.

FIG. 7 is a schematic structural diagram of a first embodiment of an access management function device according to the present invention.

FIG. 8 is a schematic structural diagram of a second embodiment of an access management function device according to the present invention.

FIG. 9 is a schematic structural diagram of a third embodiment of an access management function device according to the present invention.

FIG. 10 is a schematic structural diagram of a structure of an embodiment of a user equipment according to the present invention.

FIG. 11 shows a block diagram of an exemplary computer system/server 12 suitable for use in implementing embodiments of the present invention.

Detailed ways

The present invention provides a method for implementing handover of a mobile network system, which can ensure that when the UE needs to perform the physical location change of the base station and the handover of the core network changes, the handover proceeds smoothly, and the core network change refers to changing from the first core network to Second core network.

Implementations may include, but are not limited to, one of the following:

When it is determined that the UE needs to perform the physical location change of the base station and the core network changes from the first core network to the second core network, the RAN sends a Handover Require message to the management device, where the Handover Require message carries the handover indication information, and the management device The switching instruction information completes the switching.

When it is determined that the UE needs to perform the physical location change of the base station and the core network changes from the first core network to the second core network, the RAN sends a Handover Require message to the management device, where the Handover Require message carries the target base station identifier, and the management device determines After the target base station identifier is consistent with the source base station identifier, the handover is completed.

When it is determined that the UE needs to perform the physical location change of the base station and the core network changes from the first core network to the second core network, the RAN sends a Handover Require message to the management device, where the Handover Require message carries the target base station identifier, and the management device is configured according to the The target base station identifier completes the handover, and the target base station identifier is another base station identifier corresponding to the mapped source base station identifier.

When it is determined that the UE needs to perform the physical location change of the base station and the core network changes from the first core network to the second core network, the RAN informs the UE to release the connection with the base station, and when the UE re-initiates the connection, the RAN selects the second for the UE. The non-access stratum (NAS) connection mode corresponding to the core network is accessed.

For example, the first core network may be a 5G core network, the second core network may be a 4G core network, or the first core network may be a 4G core network, and the second core network may be a 5G core network.

Wherein, when the first core network is a 5G core network, and the second core network is a 4G core network, the management device may be an AMF, the radio access network may be an NG-RAN, and the first core network is a 4G core network, and the second When the core network is a 5G core network, the management device may be a mobility management device (MME).

The following is a description of the solution of the present invention by taking the processing of the AMF and the NG-RAN as an example. However, those skilled in the art should understand that the following description is merely illustrative and not intended to limit the technical solutions of the present invention.

Embodiment 1

In this embodiment, when it is determined that the UE needs to perform the handover of the core network change, the NG-RAN sends a Handover Require message to the AMF, and the Handover Require message may carry the handover indication information, so that the AMF can perform the handover indication information according to the handover indication information. Complete the switch.

As shown in FIG. 1 , the NG-RAN needs to send a Handover Require message to the AMF. The same as in the prior art, the Handover Require message needs to carry information such as the target base station identifier, which is different from the prior art. The message further needs to carry the handover indication information.

The specific format of the switching indication information and the like are not limited, and may be determined according to actual needs.

The handover indication information can be utilized to indicate handover to other core networks such as the 4G core network EPC and the like.

After receiving the Handover Require message, the AMF can determine that the UE is to perform the physical location change of the base station and the core network change according to the handover indication information, so that the UE can select a new mobile terminal for the UE. Manage the device (MME) and complete the subsequent handover process accordingly.

In addition, in the prior art, the Handover Require message also needs to carry a Source to Target Transparent Container parameter, which is to be transmitted by the source base station to the target base station, because the target base station in this embodiment And the source base station is The same base station is the same as the base station, so the parameters cannot be transmitted to save network resources. Accordingly, the Source to Target Transparent Container parameter may not be carried in the Handover Require message.

Alternatively, the Handover Require message may also carry only the identifier corresponding to the Source to Target Transparent Container parameter, that is, the Source to Target Transparent Container parameter is not carried, and only the corresponding identifier is carried, because in actual applications, some state machines may need to be needed. This information can be used to enter the next state. Compared with the prior art, this method can also save network resources because it does not need to carry the Source to Target Transparent Container parameter.

Embodiment 2

In this embodiment, when it is determined that the UE needs to perform the handover of the core network change, the NG-RAN sends a Handover Require message to the AMF, where the Handover Require message carries the target base station identifier, so that the AMF determines the target base station identifier. After the identity of the source base station is consistent, the handover is completed.

As shown in FIG. 1 , the NG-RAN needs to send a Handover Require message to the AMF, and the Handover Require message may carry information such as the target base station identifier.

After receiving the Handover Require message, the AMF determines that the target base station identifier is consistent with the source base station identifier, that is, the two base stations are the same base station, and the cross-system handover is determined, and the subsequent handover procedure is normally performed for the UE.

In addition, as described in the first embodiment, the Handover Require message also needs to carry the Source to Target Transparent Container parameter in the Handover Require message. In this embodiment, the Source to Target Transparent Container parameter may not be carried in the Handover Require message, or Only carries the label corresponding to the Source to Target Transparent Container parameter. knowledge.

Embodiment 3

In this embodiment, when it is determined that the UE needs to perform the handover of the core network change, the NG-RAN may send a Handover Require message to the AMF, where the Handover Require message may carry the target base station identifier, so that the AMF is based on the target base station. The identity completes the handover, and the target base station identifier is another base station identifier corresponding to the mapped source base station identifier.

According to the prior art, the target base station identifier may be consistent with the source base station identifier. In this embodiment, the target base station identifier may be another base station identifier corresponding to the mapped source base station identifier, that is, the target base station identifier, and the subsequent AMF may be based on the target base station. Identify to complete the switch.

The mapping is not limited, and may be determined according to actual needs. The source base station identifier and the target base station identifier essentially correspond to the same base station.

In addition, the base station identifier corresponding to the UE may be a third base station identifier. Preferably, the third base station identifier may be one of a source base station identifier and a target base station identifier.

2 is a schematic diagram of each base station identifier and corresponding network entity according to the present invention. As shown in FIG. 2, the eNB ID1 is the source base station identifier, the eNB ID2 is the target base station identifier, and the eNB ID3 is the base station identifier of the corresponding UE, which may be equal to the eNB ID1 or the eNB ID2.

In addition, in the prior art, the source to target Transparent Container parameter is also carried in the Handover Require message. In this embodiment, the Source to Target Transparent Container parameter may not be carried in the Handover Require message, or only the Source to Target Transparent Container parameter is carried. Corresponding identifier.

Embodiment 4

In this embodiment, when it is determined that the UE needs to perform the handover of the core network unchanged, the NG-RAN may notify the UE to release the connection with the base station, so that when the UE re-initiates the connection, the NG-RAN may be the UE. Select Evolved Packet Core Network - Non-Access Stratum (EPC-NAS) access mode access.

Specifically, the NG-RAN may send a radio resource control connection release (RRC Connection Release) message to the UE, notify the UE to release the connection with the base station, and may carry the indication information in the RRC Connection Release message, and use the indication information to instruct the UE to re Initiate a connection.

The specific format of the indication information and the like are not limited, and may be determined according to actual needs.

The UE releases the connection and the reconnection corresponds to the same base station. The difference is that the core network has changed after reconnection, and the purpose of the handover is achieved in this way.

The method described in the foregoing Embodiment 1 to Embodiment 3 can be used for the UE to implement the handover of the physical location of the base station and the change of the core network, and any one of the foregoing manners can be adopted according to actual needs.

The above description mainly refers to the solution of the present invention from the NG-RAN side, and the solution of the present invention will be described below from the AMF side and the UE side, respectively.

Embodiment 5

In this embodiment, the AMF obtains a Handover Require message that is sent by the NG-RAN to determine that the UE needs to perform the handover of the physical location of the base station and the core network changes. The Handover Require message carries the handover indication information, and can be completed according to the handover indication information. Switch.

The handover indication information can be utilized to indicate handover to other core networks such as EPC and the like.

After receiving the Handover Require message, the AMF can determine that the UE is to perform the physical location change of the base station and the core network change according to the handover indication information, so that the AMF can select a new MME for the UE. And complete the subsequent switching process accordingly.

In addition, in the prior art, the Handover Require message also needs to carry a Source to Target Transparent Container, and the parameters are to be transmitted by the source base station to the target base station, because the target base station and the source base station in this embodiment are the same base station, that is, To switch to the same base station, the parameters may not be transmitted to save network resources. Accordingly, the Source to Target Transparent Container parameter may not be carried in the Handover Require message.

Embodiment 6

In this embodiment, the AMF may obtain a Handover Require message sent by the NG-RAN to determine that the UE needs to perform the handover of the physical location of the base station but the core network changes. The Handover Require message carries the target base station identifier, and the AMF determines the target base station identifier and The source base station IDs are consistent and the handover is completed.

In addition, as described in the fourth embodiment, according to the prior art, the Source to Target Transparent Container parameter is also required to be carried in the Handover Require message. In this embodiment, the Source to Target Transparent Container parameter may not be carried in the Handover Require message, or Only carries the identifier corresponding to the Source to Target Transparent Container parameter.

Example 7

In this embodiment, the AMF acquires a Handover Require message that is sent by the NG-RAN to determine that the UE needs to perform the handover of the physical location of the base station but the core network changes. The Handover Require message carries the target base station identifier, and the target base station identifier is mapped. The source base station identifier corresponds to another base station identifier, and then the AMF can complete the handover according to the target base station identifier.

The base station identifier corresponding to the UE may be a third base station identifier. Preferably, the third base station identifier may be one of a source base station identifier and a target base station identifier.

Example eight

In this embodiment, when the physical location of the base station is changed and the core network changes, the UE may first release the connection with the base station according to the notification of the NG-RAN, and then the UE may re-initiate the connection, so that the NG-RAN is the UE. Select the EPC-NAS access mode to access.

Specifically, the UE may receive an RRC Connection Release message from the NG-RAN, and release the connection with the base station according to the message.

The RRC Connection Release message may further carry indication information for instructing the UE to re-initiate the connection.

In the above embodiments, the descriptions of the various embodiments are all focused, and the parts that are not detailed in a certain embodiment can be referred to the related descriptions in other embodiments.

The above is a description of the method embodiment, and the solution of the present invention will be further described below by means of the device embodiment.

Example nine

FIG. 3 is a schematic structural diagram of a first embodiment of a next-generation radio access network device according to the present invention. As shown in FIG. 3, the first sending unit 301 is included.

The first sending unit 301 is configured to send a Handover Require message to the AMF when the UE needs to perform the handover of the core network change, and the Handover Require message carries the handover indication information, so that the AMF completes according to the handover indication information. Switch.

As shown in FIG. 1 , the NG-RAN needs to send a Handover Require message to the AMF. According to the prior art, the Handover Require message needs to carry information such as a target base station identifier and a Source to Target Transparent Container parameter.

In this embodiment, in addition to the target base station identifier, the handover indication information may be further carried in the Handover Require message, and the handover indication information may be used to indicate handover to another core network such as an EPC.

In addition, since the Source to Target Transparent Container parameter is to be transmitted by the source base station to the target base station, the target base station and the source base station in this embodiment are the same base station, because The Source to Target Transparent Container parameter may not be carried in the Handover Require message, or only the identifier corresponding to the Source to Target Transparent Container parameter may be carried.

Example ten

FIG. 4 is a schematic structural diagram of a second embodiment of a next-generation radio access network device according to the present invention. As shown in FIG. 4, the second transmitting unit 401 is included.

The second sending unit 401 is configured to send a Handover Require message to the AMF when the UE needs to perform the handover of the core network change, and the Handover Require message carries the target base station identifier, so that the AMF determines the target base station identifier. After the identity of the source base station is consistent, the handover is completed.

After receiving the Handover Require message, the AMF determines that the target base station identifier is consistent with the source base station identifier, that is, the two base stations are the same base station, and the determining is a cross-system handover, and the subsequent handover procedure can be performed normally for the UE.

Embodiment 11

FIG. 5 is a schematic structural diagram of a third embodiment of a next-generation radio access network device according to the present invention. As shown in FIG. 5, the third transmitting unit 501 is included.

a third sending unit 501, configured to: when determining that the UE needs to perform physical location of the base station unchanged When the switching of the heart network is changed, the Handover Require message is sent to the AMF, and the Handover Require message carries the target base station identifier, so that the AMF completes the handover according to the target base station identifier, and the target base station identifier is another base station identifier corresponding to the mapped source base station identifier.

The base station identifier corresponding to the UE is the third base station identifier, and the third base station identifier may be one of the source base station identifier and the target base station identifier.

In addition, the Handover Require message does not carry the Source to Target Transparent Container parameter, or the Handover Require message carries only the identifier corresponding to the Source to Target Transparent Container parameter.

Example twelve

FIG. 6 is a schematic structural diagram of a fourth embodiment of a next-generation radio access network device according to the present invention. As shown in FIG. 6, the notification unit 601 and the access unit 602 are included.

The notification unit 601 is configured to notify the UE to release the connection with the base station when determining that the UE needs to perform the handover of the core network change without changing the physical location of the base station.

The access unit 602 is configured to select an EPC-NAS access mode access for the UE when the UE re-initiates the connection.

Specifically, the notification unit 601 may send an RRC Connection Release message to the UE, and notify the UE to release the connection with the base station, and may carry the indication information in the RRC Connection Release message, and use the indication information to instruct the UE to re-initiate the connection.

Example thirteen

FIG. 7 is a schematic structural diagram of a first embodiment of an access management function device according to the present invention. As shown in FIG. 7, the first acquiring unit 701 and the first switching unit 702 are included.

The first acquiring unit 701 is configured to acquire a Handover Require message sent by the NG-RAN to determine that the UE needs to perform the handover of the physical location of the base station and the core network changes, and the Handover Require message carries the handover indication information.

The first switching unit 702 is configured to complete the handover according to the handover indication information.

In this embodiment, in addition to the target base station identifier, the handover indication information may be further carried in the Handover Require message.

After the first handover unit 702 receives the Handover Require message, if the target base station identifier is consistent with the source base station identifier, according to the handover indication information, it may be determined that the UE is to perform the physical location change of the base station and the core network change is switched, so that the UE may be the UE. Select a new MME and complete the subsequent handover process accordingly.

In addition, since the source to target Transparent Container parameter is to be transmitted by the source base station to the target base station, and the target base station and the source base station in this embodiment are the same base station, the Source to Target Transparent Container parameter may not be carried in the Handover Require message, or Only carries the identifier corresponding to the Source to Target Transparent Container parameter.

Embodiment 14

FIG. 8 is a schematic structural diagram of a second embodiment of an access management function device according to the present invention. As shown in FIG. 8, the second obtaining unit 801 and the second switching unit 802 are included.

The second obtaining unit 801 is configured to acquire a Handover Require message sent by the NG-RAN when the UE needs to perform the handover of the physical location of the base station but the core network changes. The Handover Require message carries the target base station identifier.

The second switching unit 802 is configured to complete the handover after determining that the target base station identifier is consistent with the source base station identifier.

The second switching unit 802 determines that the target base station identifier is consistent with the source base station identifier according to the Handover Require message, that is, the two base stations are the same base station, and the determination is that the handover is performed across the system, and the subsequent handover procedure is normally performed for the UE.

Example fifteen

FIG. 9 is a schematic structural diagram of a third embodiment of an access management function device according to the present invention. As shown in FIG. 9, the third acquisition unit 901 and the third switching unit 902 are included.

The third acquiring unit 901 is configured to acquire a Handover Require message that is sent by the NG-RAN when the UE needs to perform the handover of the physical location of the base station but the core network changes, and the Handover Require message carries the target base station identifier, and the target base station identifier is a mapping. Another base station identifier corresponding to the source base station identifier.

The third switching unit 902 is configured to complete the handover according to the target base station identifier.

In addition, the Source to Target Transparent is not carried in the Handover Require message. The Container parameter, or the Handover Require message, carries only the identifier corresponding to the Source to Target Transparent Container parameter.

Example sixteen

FIG. 10 is a schematic structural diagram of a structure of an embodiment of a user equipment according to the present invention. As shown in FIG. 10, the present invention includes a release unit 1001 and a connection unit 1002.

The releasing unit 1001 is configured to release the connection between the UE and the base station according to the notification of the NG-RAN when the UE needs to perform the handover of the physical location of the base station and the change of the core network.

The connecting unit 1002 is configured to re-initiate the connection, so that the NG-RAN selects an EPC-NAS access mode access for the UE.

Specifically, the releasing unit 1001 may receive an RRC Connection Release message from the NG-RAN, and release the connection with the base station according to the message. The RRC Connection Release message may further carry indication information for instructing the UE to re-initiate the connection.

For the specific working process of the foregoing device embodiments, refer to the corresponding description in the foregoing method embodiments, and details are not described herein.

In summary, by adopting the solution of the present invention, by carrying the handover indication information or re-accessing the UE to other core networks in the Handover Require message, it is ensured that when the UE needs to perform the physical location of the base station unchanged, the core network changes from the first When a core network changes to the second core network, the handover proceeds smoothly.

FIG. 11 shows a block diagram of an exemplary computer system/server 12 suitable for use in implementing embodiments of the present invention. The computer system/server 12 shown in FIG. 11 is merely an example and should not impose any limitation on the function and scope of use of the embodiments of the present invention.

As shown in Figure 11, computer system/server 12 is embodied in the form of a general purpose computing device. The components of computer system/server 12 may include, but are not limited to, one or more processors (processing Unit 16, memory 28, bus 18 that connects different system components, including memory 28 and processor 16.

Bus 18 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, a graphics acceleration port, a processor, or a local bus using any of a variety of bus structures. For example, these architectures include, but are not limited to, an Industry Standard Architecture (ISA) bus, a Micro Channel Architecture (MAC) bus, an Enhanced ISA Bus, a Video Electronics Standards Association (VESA) local bus, and peripheral component interconnects ( PCI) bus.

Computer system/server 12 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by computer system/server 12, including both volatile and non-volatile media, removable and non-removable media.

Memory 28 may include computer system readable media in the form of volatile memory, such as random access memory (RAM) 30 and/or cache memory 32. Computer system/server 12 may further include other removable/non-removable, volatile/non-volatile computer system storage media. By way of example only, storage system 34 may be used to read and write non-removable, non-volatile magnetic media (not shown in Figure 11, commonly referred to as "hard disk drives"). Although not shown in FIG. 11, a disk drive for reading and writing to a removable non-volatile disk (for example, a "floppy disk"), and a removable non-volatile disk (for example, a CD-ROM, a DVD-ROM) may be provided. Or other optical media) read and write optical drive. In these cases, each drive can be coupled to bus 18 via one or more data medium interfaces. Memory 28 can include at least one program product having a set (e.g., at least one) of program modules configured to perform the functions of various embodiments of the present invention.

A program/utility 40 having a set (at least one) of program modules 42 may be stored, for example, in memory 28, such program modules 42 including, but not limited to, an operating system, One or more applications, other program modules, and program data, each of which may include an implementation of a network environment. Program module 42 typically performs the functions and/or methods of the described embodiments of the present invention.

Computer system/server 12 may also be in communication with one or more external devices 14 (e.g., a keyboard, pointing device, display 24, etc.), and may also be in communication with one or more devices that enable a user to interact with the computer system/server 12. And/or in communication with any device (e.g., network card, modem, etc.) that enables the computer system/server 12 to communicate with one or more other computing devices. This communication can take place via an input/output (I/O) interface 22. Also, computer system/server 12 may also communicate with one or more networks (e.g., a local area network (LAN), a wide area network (WAN), and/or a public network, such as the Internet) through network adapter 20. As shown in FIG. 11, network adapter 20 communicates with other modules of computer system/server 12 via bus 18. It should be understood that although not shown in the figures, other hardware and/or software modules may be utilized in conjunction with computer system/server 12, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, Tape drives and data backup storage systems.

The processor 16 executes various functions and data processing by executing a program stored in the memory 28, for example, implementing any of the first to eighth embodiments.

The present invention also discloses a computer readable storage medium having stored thereon a computer program, which when executed by the processor, implements any of the methods of the first embodiment to the eighth embodiment.

Any combination of one or more computer readable media can be utilized. The computer readable medium can be a computer readable signal medium or a computer readable storage medium. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above. More specific to computer readable storage media Examples (non-exhaustive list) include: electrical connections with one or more wires, portable computer disks, hard disks, random access memory (RAM), read only memory (ROM), erasable programmable read only memory (EPROM or flash memory), optical fiber, portable compact disk read only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination of the foregoing. In this document, a computer readable storage medium can be any tangible medium that can contain or store a program, which can be used by or in connection with an instruction execution system, apparatus or device.

A computer readable signal medium may include a data signal that is propagated in the baseband or as part of a carrier, carrying computer readable program code. Such propagated data signals can take a variety of forms including, but not limited to, electromagnetic signals, optical signals, or any suitable combination of the foregoing. The computer readable signal medium can also be any computer readable medium other than a computer readable storage medium, which can transmit, propagate, or transport a program for use by or in connection with the instruction execution system, apparatus, or device. .

Program code embodied on a computer readable medium can be transmitted by any suitable medium, including but not limited to wireless, wire, fiber optic cable, RF, etc., or any suitable combination of the foregoing.

Computer program code for performing the operations of the present invention may be written in one or more programming languages, or a combination thereof, including an object oriented programming language such as Java, Smalltalk, C++, and conventional A procedural programming language - such as the "C" language or a similar programming language. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer, partly on the remote computer, or entirely on the remote computer or server. In the case of a remote computer, the remote computer can pass any kind of network - package Including a local area network (LAN) or a wide area network (WAN) - connected to a user's computer, or can be connected to an external computer (eg, using an Internet service provider to connect over the Internet).

In the several embodiments provided by the present invention, it should be understood that the disclosed apparatus and method and the like may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division, and the actual implementation may have another division manner.

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

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

The above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium. The above software functional unit is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform the methods of the various embodiments of the present invention. Part of the steps. The foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a removable hard disk, a read only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalents, improvements, etc., which are made within the spirit and principles of the present invention, should be included in the present invention. Within the scope of protection.

Claims

A method for implementing handover of a mobile network system, comprising:

When it is determined that the user equipment UE needs to perform the physical location change of the base station and the core network changes from the first core network to the second core network, the radio access network RAN sends a handover request message to the management device, where the handover request message is carried. There is switching indication information, so that the management device completes the handover according to the handover indication information.
The method of claim 1 wherein

The switch request message does not carry a source to target transparent container parameter to the target transparent container;

Alternatively, the handover request message carries only the identifier corresponding to the Source to Target Transparent Container parameter.
The method of claim 1 wherein

When the first core network is a 5G core network, and the second core network is a 4G core network, the management device is an access management function device AMF;

When the first core network is a 4G core network, and the second core network is a 5G core network, the management device is a mobility management device MME.
A method for implementing handover of a mobile network system, comprising:

When it is determined that the user equipment UE needs to perform the physical location change of the base station and the core network changes from the first core network to the second core network, the radio access network RAN sends a handover request message to the management device, where the handover request message is carried. There is a target base station identifier, so that the management device determines that the target base station identifier is consistent with the source base station identifier, and completes the handover.
The method of claim 4 wherein:

The switch request message does not carry a source to target transparent container parameter to the target transparent container;

Alternatively, the handover request message carries only the identifier corresponding to the Source to Target Transparent Container parameter.
The method of claim 4 wherein:

When the first core network is a 5G core network, and the second core network is a 4G core network, the management device is an access management function device AMF;

When the first core network is a 4G core network, and the second core network is a 5G core network, the management device is a mobility management device MME.
A method for implementing handover of a mobile network system, comprising:

When it is determined that the user equipment UE needs to perform the physical location change of the base station and the core network changes from the first core network to the second core network, the radio access network RAN notifies the UE to release the connection with the base station;

When the UE re-initiates the connection, the RAN selects the non-access stratum NAS connection mode access corresponding to the second core network for the UE.
The method of claim 7 wherein:

The RAN notifying the UE to release the connection with the base station includes:

The RAN sends a RRC Connection Release message to the UE to notify the UE to release the connection with the base station.
The method of claim 8 wherein:

The RRC Connection Release message carries indication information for instructing the UE to re-initiate a connection.
A method for implementing handover of a mobile network system, comprising:

When it is determined that the user equipment UE needs to perform the physical location change of the base station and the core network changes from the first core network to the second core network, the radio access network RAN sends a handover request message to the management device, where the handover request message is carried. There is a target base station identifier, so that the management device completes the handover according to the target base station identifier, and the target base station identifier is another base station identifier corresponding to the mapped source base station identifier.
The method of claim 10 wherein:

The base station identifier corresponding to the UE is the third base station identifier;

The third base station identifier includes one of the source base station identifier and the target base station identifier.
The method of claim 10 wherein:

The switch request message does not carry a source to target transparent container parameter to the target transparent container;

Alternatively, the handover request message carries only the identifier corresponding to the Source to Target Transparent Container parameter.
The method of claim 10 wherein:

When the first core network is a 5G core network, and the second core network is a 4G core network, the management device is an access management function device AMF;

When the first core network is a 4G core network, and the second core network is a 5G core network, the management device is a mobility management device MME.
A method for implementing handover of a mobile network system, comprising:

The management device acquires the radio access network RAN to determine that the user equipment UE needs to perform base station physics a handover request message sent when the location of the core network changes from the first core network to the second core network, where the handover request message carries the handover indication information;

The management device completes the handover according to the handover indication information.
The method of claim 14 wherein:

The switch request message does not carry a source to target transparent container parameter to the target transparent container;

Alternatively, the handover request message carries only the identifier corresponding to the Source to Target Transparent Container parameter.
The method of claim 14 wherein:

When the first core network is a 5G core network, and the second core network is a 4G core network, the management device is an access management function device AMF;

When the first core network is a 4G core network, and the second core network is a 5G core network, the management device is a mobility management device MME.
A method for implementing handover of a mobile network system, comprising:

The management device acquires a handover request message sent by the radio access network RAN to determine that the user equipment UE needs to perform the physical location change of the base station and the core network changes from the first core network to the second core network, and the handover request message carries Have the target base station identifier;

The management device determines that the target base station identifier is consistent with the source base station identifier, and completes the handover.
The method of claim 17 wherein:

The switch request message does not carry a source to target transparent container parameter to the target transparent container;

Or, the switching request message carries only the Source to Target The identifier corresponding to the Transparent Container parameter.
The method of claim 17 wherein:

When the first core network is a 5G core network, and the second core network is a 4G core network, the management device is an access management function device AMF;

When the first core network is a 4G core network, and the second core network is a 5G core network, the management device is a mobility management device MME.
A method for implementing handover of a mobile network system, comprising:

The management device acquires a handover request message sent by the radio access network RAN to determine that the user equipment UE needs to perform the physical location change of the base station and the core network changes from the first core network to the second core network, and the handover request message carries There is a target base station identifier, where the target base station identifier is another base station identifier corresponding to the mapped source base station identifier;

The management device completes the handover according to the target base station identifier.
The method of claim 20 wherein:

The base station identifier corresponding to the UE is the third base station identifier;

The third base station identifier includes one of the source base station identifier and the target base station identifier.
The method of claim 20 wherein:

The switch request message does not carry a source to target transparent container parameter to the target transparent container;

Alternatively, the handover request message carries only the identifier corresponding to the Source to Target Transparent Container parameter.
The method of claim 20 wherein:

When the first core network is a 5G core network, and the second core network is a 4G core network, the management device is an access management function device AMF;

When the first core network is a 4G core network, and the second core network is a 5G core network, the management device is a mobility management device MME.
A method for implementing handover of a mobile network system, comprising:

When the physical location of the base station needs to be changed and the core network changes from the first core network to the second core network, the user equipment UE releases the connection with the base station according to the notification of the radio access network RAN;

The UE re-initiates the connection, so that the RAN selects the non-access stratum NAS connection mode corresponding to the second core network for the UE to access.
The method of claim 24 wherein

The UE releasing the connection with the base station according to the notification of the RAN includes:

The UE receives a radio resource control connection from the RAN to release an RRC Connection Release message, and releases a connection with the base station according to the message.
The method of claim 24 wherein

The RRC Connection Release message carries indication information for instructing the UE to re-initiate a connection.
A next-generation radio access network device, comprising: a first sending unit;

The first sending unit is configured to send a handover request message to the management device when determining that the user equipment UE needs to perform the physical location change of the base station and the core network changes from the first core network to the second core network, the switching The request message carries the switching indication information, so as to be The management device completes the handover according to the handover indication information.
The next generation radio access network device according to claim 27, characterized in that

The switch request message does not carry a source to target transparent container parameter to the target transparent container;

Alternatively, the handover request message carries only the identifier corresponding to the Source to Target Transparent Container parameter.
A next-generation radio access network device, comprising: a second sending unit;

The second sending unit is configured to: when determining that the user equipment UE needs to perform the physical location change of the base station and the core network changes from the first core network to the second core network, send a handover request message to the management device, where the handover is performed. The request message carries the target base station identifier, so that the management device determines that the target base station identifier is consistent with the source base station identifier, and completes the handover.
A next generation radio access network device according to claim 30, characterized in that

The switch request message does not carry a source to target transparent container parameter to the target transparent container;

Alternatively, the handover request message carries only the identifier corresponding to the Source to Target Transparent Container parameter.
A next-generation radio access network device, comprising: a third sending unit;

The third sending unit is configured to: when determining that the user equipment UE needs to perform the physical location change of the base station and the core network changes from the first core network to the second core network, send a handover request message to the management device, where the handover is performed. The request message carries the target base station identifier for the The management device completes the handover according to the target base station identifier, where the target base station identifier is another base station identifier corresponding to the mapped source base station identifier.
The next generation radio access network device according to claim 31, characterized in that

The base station identifier corresponding to the UE is the third base station identifier;

The third base station identifier includes one of the source base station identifier and the target base station identifier.
The next generation radio access network device according to claim 31, characterized in that

The switch request message does not carry a source to target transparent container parameter to the target transparent container;

Alternatively, the handover request message carries only the identifier corresponding to the Source to Target Transparent Container parameter.
A next-generation radio access network device, comprising: a notification unit and an access unit;

The notifying unit is configured to notify the UE to release the connection with the base station when determining that the user equipment UE needs to perform the physical location change of the base station and the core network changes from the first core network to the second core network;

The access unit is configured to select, when the UE re-initiates a connection, access the non-access stratum NAS connection mode corresponding to the second core network.
A next generation radio access network device according to claim 34, characterized in that

The notification unit sends a RRC Connection Release message to the UE to notify the UE to release the connection with the base station.
A next generation radio access network device according to claim 35, characterized in that

The RRC Connection Release message carries indication information for instructing the UE to re-initiate a connection.
A management device, comprising: a first acquiring unit and a first switching unit;

The first acquiring unit is configured to acquire a handover request message that is sent by the radio access network RAN when the user equipment UE needs to perform the physical location change of the base station and the core network changes from the first core network to the second core network. The handover request message carries handover indication information;

The first switching unit is configured to complete the handover according to the handover indication information.
A management device according to claim 37, wherein

The switch request message does not carry a source to target transparent container parameter to the target transparent container;

Alternatively, the handover request message carries only the identifier corresponding to the Source to Target Transparent Container parameter.
A management device, comprising: a second acquiring unit and a second switching unit;

The second obtaining unit is configured to acquire a handover request message that is sent by the radio access network RAN when the user equipment UE needs to perform the physical location change of the base station and the core network changes from the first core network to the second core network. The handover request message carries a target base station identifier;

The second switching unit is configured to complete the handover after determining that the target base station identifier is consistent with the source base station identifier.
A management device according to claim 39, wherein

The switch request message does not carry the active to target transparent container Source to Target Transparent Container parameter;

Alternatively, the handover request message carries only the identifier corresponding to the Source to Target Transparent Container parameter.
A management device, comprising: a third obtaining unit and a third switching unit;

The third obtaining unit is configured to acquire a handover request message that is sent by the radio access network RAN when the user equipment UE needs to perform the physical location change of the base station and the core network changes from the first core network to the second core network. The handover request message carries a target base station identifier, where the target base station identifier is another base station identifier corresponding to the mapped source base station identifier;

The third switching unit is configured to complete the handover according to the target base station identifier.
A management device according to claim 41, wherein

The base station identifier corresponding to the UE is the third base station identifier;

The third base station identifier includes one of the source base station identifier and the target base station identifier.
A management device according to claim 41, wherein

The switch request message does not carry a source to target transparent container parameter to the target transparent container;

Alternatively, the handover request message carries only the identifier corresponding to the Source to Target Transparent Container parameter.
A user equipment, comprising: a release unit and a connection unit;

The releasing unit is configured to: when the user equipment needs to perform physical office location change and the core network changes from the first core network to the second core network, according to the radio access network RAN The notification releases the connection of the user equipment to the base station;

The connecting unit is configured to re-initiate the connection, so that the RAN selects a non-access stratum NAS connection mode corresponding to the second core network for the user equipment to access.
User equipment according to claim 44, characterized in that

The releasing unit receives a RRC Connection Release message from the RAN of the RAN, and releases the connection between the user equipment and the base station according to the message.
A user equipment according to claim 45, wherein

The RRC Connection Release message carries the indication information, which is used to instruct the user equipment to re-initiate the connection.
A computer apparatus comprising a memory, a processor, and a computer program stored on the memory and operable on the processor, wherein the processor executes the program as claimed in claims 1-26 The method of any of the preceding claims.
A computer readable storage medium having stored thereon a computer program, wherein the program is executed by a processor to implement the method of any one of claims 1 to 26.