CN112333777A - A mobility processing method, device and device - Google Patents

Abstract

The present invention provides a mobility processing method, device and device, and relates to the technical field of communications. The method is applied to a network device, and includes: after the user equipment is switched from a first network standard to a second network standard, determining whether the user equipment supports a third network standard; if the user equipment supports the third network standard , triggering the user equipment to re-attach. The solution of the present invention achieves the purpose of ensuring the continuity of mobility of the user equipment.

Description

A mobility processing method, device and device

technical field

The present invention relates to the field of communication technologies, and in particular, to a mobility processing method, apparatus and device.

Background technique

With the development of communication technology, the latest generation of cellular mobile communication technology, that is, the fifth generation mobile communication technology 5G has matured, achieving high data rate, reduced delay, energy saving, lower cost, improved system capacity and large-scale device connection , so more and more users choose to use 5G for communication.

However, in the current network system switching, it is impossible to realize the continuity of mobility between the second/third generation mobile communication technology 2G or 3G, and the fourth generation mobile communication technology 4G and 5G. For example, the user equipment UE initially accesses in 2G or 3G, moves to 4G, and the service is continuous; from 4G to 5G, the service is interrupted. Or, the UE initially accesses in 5G, 5G to 4G, the service is continuous; 4G to 2G or 3G, the service is interrupted. Therefore, how to ensure continuity in mobility has become an urgent problem to be solved.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a mobility processing method and device to ensure the mobility continuity of the user equipment.

In order to achieve the above object, an embodiment of the present invention provides a mobility processing method, which is applied to a network device, including:

After the user equipment switches from the first network standard to the second network standard, determining whether the user equipment supports the third network standard;

In the case that the user equipment supports the third network standard, the user equipment is triggered to re-attach.

Optionally, the determining whether the user equipment supports a third network standard includes:

acquiring network capability information of the user equipment;

According to the network capability information, it is determined whether the user equipment supports the third network standard.

Optionally, the determining whether the user equipment supports the third network standard according to the network capability information includes:

Whether the user equipment supports the third network standard is determined by the N1 mode support flag in the network capability information.

Optionally, the triggering the user equipment to re-attach includes:

Sending reattach indication information to the user equipment.

Optionally, the sending reattachment indication information to the user equipment includes:

Sending a tracking area update rejection message to the user equipment, wherein the reason indication information for the tracking area update rejection message is the reattachment indication information.

Optionally, the cause indication information indicates an EPG EPS session management failure.

Optionally, the sending reattachment indication information to the user equipment includes:

Sending a tracking area update success message to the user equipment, wherein the packet data protocol context status indication information of the tracking area update success message is the reattachment indication information.

Optionally, the packet data protocol context status indication information indicates that no public data network PDN connection is successfully migrated.

Optionally, the sending reattachment indication information to the user equipment includes:

In the case that the tracking area update is successful, a detach message is sent to the user equipment, wherein the detach message is the re-attach indication information.

In order to achieve the above object, embodiments of the present invention provide a mobility processing method, which is applied to user equipment, where the user equipment supports a first network standard, a second network standard, and a third network standard, and the method includes:

receiving reattachment indication information sent by the network device after the user equipment switches from the first network standard to the second network standard;

Re-attach is performed according to the re-attach instruction information.

Optionally, the receiving re-attach indication information sent by the network device after the user equipment switches from the first network standard to the second network standard includes:

receiving a tracking area update rejection message sent by the network device, wherein the reason indication information for the tracking area update rejection message is the re-attach indication information; or,

receiving a tracking area update success message sent by the network device, wherein the packet data protocol context status indication information of the tracking area update success message is the reattachment indication information; or

receiving a detachment message sent by the network device when the tracking area update is successful, where the detachment message is the reattachment indication information.

Optionally, the cause indication information indicates an EPS session management failure.

Optionally, the packet data protocol context status indication information indicates that no PDN connection is successfully migrated.

In order to achieve the above object, an embodiment of the present invention provides a mobility processing method, which is applied to a network device, including:

When the user equipment switches from the first network standard to the second network standard, and the user equipment supports the third network standard, sending session management parameters to the user equipment, wherein the session management parameters include the first network standard. The quality of service QoS parameters of the three network standards and/or the packet data protocol context parameters of the first network standard.

Optionally, the sending the session management parameter to the user equipment includes:

Send the QoS parameter of the third network standard and/or the packet data protocol context parameter of the first network standard to the user equipment through a bearer modification process; or,

Send the QoS parameter of the third network standard and/or the packet data protocol context parameter of the first network standard to the user equipment through a tracking area update response message.

Optionally, before the sending the session management parameters to the user equipment, the method further includes:

Obtain the session identifier of the protocol data unit reported by the user equipment.

Optionally, the acquiring the protocol data unit session identifier reported by the user equipment includes:

The protocol data unit session identifier is acquired through a bearer resource modification request process or a tracking area update process.

Optionally, after the sending the session management parameters to the user equipment, the method further includes:

Obtain the session identifier of the protocol data unit reported by the user equipment.

Optionally, the acquiring the protocol data unit session identifier reported by the user equipment includes:

The protocol data unit session identifier is acquired through the bearer modification process.

Optionally, before the sending the session management parameters to the user equipment, the method further includes:

If the user equipment corresponds to a PGW-C+SMF node, and the PGW-C+SMF node is selected by the serving GPRS support node SGSN according to the network capability information or user subscription information of the user equipment, determine the user The device supports the third network standard.

In order to achieve the above object, embodiments of the present invention provide a mobility processing method, which is applied to user equipment, where the user equipment supports a first network standard, a second network standard, and a third network standard, and the method includes:

Receive session management parameters sent by a network device after the user equipment switches from a first network standard to a second network standard, where the session management parameters include QoS parameters of the third network standard and/or the first network standard Standard packet data protocol context parameters.

Optionally, the receiving session management parameters sent by the network device after the user equipment switches from the first network standard to the second network standard, including:

Obtain the QoS parameters of the third network standard and/or the packet data protocol context parameters of the first network standard sent by the network device through the bearer modification process; or,

Acquire the QoS parameter of the third network standard and/or the packet data protocol context parameter of the first network standard sent by the network device through the tracking area update response message.

Optionally, before the receiving the session management parameter sent by the network device after the user equipment switches from the first network standard to the second network standard, the method further includes:

Report protocol data unit session identifier.

Optionally, the reporting protocol data unit session identifier includes:

The protocol data unit session identifier is sent through a bearer resource modification request process or a tracking area update process.

Optionally, after the receiving the session management parameter sent by the network device after the user equipment switches from the first network standard to the second network standard, the method further includes:

Report protocol data unit session identifier.

Optionally, the reporting protocol data unit session identifier includes:

The protocol data unit session identifier is sent through the bearer modification process.

In order to achieve the above object, an embodiment of the present invention provides a mobility processing method, which is applied to a network device, including:

acquiring network capability information or user subscription information of the user equipment;

According to the network capability information or user subscription information, a PGW-C+SMF node is selected.

Optionally, selecting a PGW-C+SMF node for the user equipment according to the network capability information, including:

Determine the PGW-C+SMF node corresponding to the user equipment according to the N1 mode support flag in the network capability information.

In order to achieve the above object, an embodiment of the present invention provides a mobility processing method, which is applied to a network device, including:

When the user equipment switches from the third network standard to the second network standard, and the user equipment supports the first network standard, sending session management parameters to the user equipment, wherein the session management parameters include the first network standard. The QoS parameters of the three network standards and/or the packet data protocol context parameters of the first network standard.

Optionally, the sending the session management parameter to the user equipment includes:

Through the bearer modification process, the QoS parameters of the third network standard and/or the packet data protocol context parameters of the first network standard are sent to the user equipment.

In order to achieve the above object, embodiments of the present invention provide a mobility processing method, which is applied to user equipment, where the user equipment supports a first network standard, a second network standard, and a third network standard, and the method includes:

Receive session management parameters sent by a network device after the user equipment switches from a third network standard to a second network standard, where the session management parameters include QoS parameters of the third network standard and/or the first network standard Standard packet data protocol context parameters.

Optionally, the receiving session management parameters sent by the network device after the user equipment switches from the third network standard to the first network standard, including:

Acquire the QoS parameters of the third network standard and/or the packet data protocol context parameters of the first network standard sent by the network device through the bearer modification process.

In order to achieve the above object, an embodiment of the present invention provides a mobility processing method, which is applied to a network device, including:

When the user equipment initially attaches to the second network standard, session management parameters are sent to the user equipment, wherein the session management parameters include QoS parameters of the third network standard and/or packet data protocol context parameters of the first network standard.

Optionally, before or after the sending the session management parameters to the user equipment, the method further includes:

Obtain the session identifier of the protocol data unit reported by the user equipment.

Optionally, after the sending the session management parameters to the user equipment, the method further includes:

The packet data protocol context of the first network standard, the EPS context of the second network standard, and the protocol data unit session context of the third network standard are stored.

Optionally, the packet data protocol context of the first network standard includes the packet data protocol context parameter.

Optionally, the protocol data unit session context of the third network standard includes QoS parameters.

Optionally, the method further includes:

When the user equipment is switched from the second network standard to the first network standard, the user equipment communicates with the PCRF+PCF through the N7 interface, wherein the user equipment supports the third network standard.

To achieve the above object, embodiments of the present invention provide a mobility processing method, applied to user equipment, including:

Receive session management parameters sent by the network device when the user equipment initially attaches to the second network standard, where the session management parameters include QoS parameters of the third network standard and/or packet data protocol context parameters of the first network standard.

Optionally, before or after the session management parameter sent by the network device when the user equipment initially attaches to the second network standard, the method further includes:

Report protocol data unit session identifier.

Optionally, after the receiving the session management parameter sent by the network device when the user equipment initially attaches to the second network standard, the method further includes:

The packet data protocol context of the first network standard, the EPS context of the second network standard, and the protocol data unit session context of the third network standard are stored.

Optionally, the packet data protocol context of the first network standard includes the packet data protocol context parameter.

Optionally, the protocol data unit session context of the third network standard includes QoS parameters.

Optionally, the protocol data unit session identifier is allocated by the user equipment when the PDN connection is created.

In order to achieve the above object, an embodiment of the present invention provides a mobility processing apparatus, which is applied to network equipment, including:

a first determining module, configured to determine whether the user equipment supports the third network standard after the user equipment is switched from the first network standard to the second network standard;

The first processing module is configured to trigger the user equipment to re-attach when the user equipment supports a third network standard.

Optionally, the first determining module is further configured to:

a first acquisition submodule, configured to acquire network capability information of the user equipment;

The first judging submodule is configured to judge whether the user equipment supports the third network standard according to the network capability information.

Optionally, the first judgment submodule is also used for:

Whether the user equipment supports the third network standard is determined by the N1 mode support flag in the network capability information.

Optionally, the first processing module is also used for:

Sending reattach indication information to the user equipment.

Optionally, the first processing module is also used for:

Sending a tracking area update rejection message to the user equipment, wherein the reason indication information for the tracking area update rejection message is the reattachment indication information.

Wherein, the reason indication information indicates a failure of the EPS session management of the evolved packet system.

Optionally, the first processing module is also used for:

Sending a tracking area update success message to the user equipment, wherein the packet data protocol context status indication information of the tracking area update success message is the reattachment indication information.

Wherein, the packet data protocol context status indication information indicates that no public data network PDN connection is successfully migrated.

Optionally, the first processing module is also used for:

In the case that the tracking area update is successful, a detach message is sent to the user equipment, wherein the detach message is the re-attach indication information.

To achieve the above object, an embodiment of the present invention provides a mobility processing apparatus, which is applied to user equipment, where the user equipment supports a first network standard, a second network standard, and a third network standard, and the apparatus includes:

a first receiving module, configured to receive reattachment indication information sent by the network device after the user equipment switches from the first network standard to the second network standard;

The second processing module is configured to perform reattachment according to the reattachment instruction information.

Optionally, the first receiving module is also used for:

receiving a tracking area update rejection message sent by the network device, wherein the reason indication information for the tracking area update rejection message is the re-attach indication information; or,

receiving a tracking area update success message sent by the network device, wherein the packet data protocol context status indication information of the tracking area update success message is the reattachment indication information; or

receiving a detachment message sent by the network device when the tracking area update is successful, where the detachment message is the reattachment indication information.

Optionally, the cause indication information indicates an EPS session management failure.

Optionally, the packet data protocol context status indication information indicates that no PDN connection is successfully migrated.

In order to achieve the above object, an embodiment of the present invention provides a mobility processing apparatus, which is applied to network equipment, including:

a first sending module, configured to send session management parameters to the user equipment when the user equipment switches from the first network standard to the second network standard and the user equipment supports the third network standard, wherein the The session management parameters include the QoS parameters of the third network standard and/or the packet data protocol context parameters of the first network standard.

Optionally, the first sending module is further configured to:

Send the QoS parameter of the third network standard and/or the packet data protocol context parameter of the first network standard to the user equipment through a bearer modification process; or,

Send the QoS parameter of the third network standard and/or the packet data protocol context parameter of the first network standard to the user equipment through a tracking area update response message.

Optionally, the device further includes:

The first identifier acquisition module is configured to acquire the protocol data unit session identifier reported by the user equipment before the session management parameter is sent to the user equipment.

Optionally, the first identification acquisition module is also used for:

The protocol data unit session identifier is acquired through a bearer resource modification request process or a tracking area update process.

Optionally, the device further includes:

The second identifier acquisition module is configured to acquire the protocol data unit session identifier reported by the user equipment after the session management parameter is sent to the user equipment.

Optionally, the second identification acquisition module is also used for:

The protocol data unit session identifier is acquired through the bearer modification process.

Optionally, the device further includes:

The capability judgment module is used for if the user equipment corresponds to a PGW-C+SMF node, and the PGW-C+SMF node is the serving GPRS support node SGSN selected according to the network capability information or user subscription information of the user equipment. , it is determined that the user equipment supports the third network standard.

To achieve the above object, an embodiment of the present invention provides a mobility processing apparatus, which is applied to user equipment, where the user equipment supports a first network standard, a second network standard, and a third network standard, and the apparatus includes:

The second receiving module is configured to receive a session management parameter sent by the network device after the user equipment switches from the first network standard to the second network standard, wherein the session management parameter includes the QoS parameter of the third network standard and /or the packet data protocol context parameter of the first network standard.

Optionally, the second receiving module is also used for:

Obtain the QoS parameters of the third network standard and/or the packet data protocol context parameters of the first network standard sent by the network device through the bearer modification process; or,

Acquire the QoS parameter of the third network standard and/or the packet data protocol context parameter of the first network standard sent by the network device through the tracking area update response message.

Optionally, the device further includes:

The first identifier reporting module is configured to report the protocol data unit session identifier before the receiving network device sends the session management parameter after the user equipment switches from the first network standard to the second network standard.

Optionally, the first identification reporting module is also used for:

The protocol data unit session identifier is sent through a bearer resource modification request process or a tracking area update process.

Optionally, the device further includes:

The second identifier reporting module is configured to report the protocol data unit session identifier after the receiving network device sends the session management parameter after the user equipment switches from the first network standard to the second network standard.

Optionally, the second identification reporting module is also used for:

The protocol data unit session identifier is sent through the bearer modification process.

In order to achieve the above object, an embodiment of the present invention provides a mobility processing apparatus, which is applied to network equipment, including:

an acquisition module, used to acquire network capability information or user subscription information of the user equipment;

The selection module is configured to select a PGW-C+SMF node according to the network capability information or user subscription information.

Optionally, the selection module is also used for:

Determine the PGW-C+SMF node corresponding to the user equipment according to the N1 mode support flag in the network capability information.

In order to achieve the above object, an embodiment of the present invention provides a mobility processing apparatus, which is applied to network equipment, including:

The second sending module is configured to send session management parameters to the user equipment when the user equipment switches from the third network standard to the second network standard and the user equipment supports the first network standard, wherein the The session management parameters include QoS parameters of the third network standard and/or packet data protocol context parameters of the first network standard.

Optionally, the second sending module is further configured to:

Through the bearer modification process, the QoS parameters of the third network standard and/or the packet data protocol context parameters of the first network standard are sent to the user equipment.

To achieve the above object, an embodiment of the present invention provides a mobility processing apparatus, which is applied to user equipment, where the user equipment supports a first network standard, a second network standard, and a third network standard, and the apparatus includes:

A third receiving module, configured to receive a session management parameter sent by the network device after the user equipment switches from the third network standard to the second network standard, wherein the session management parameter includes the QoS parameter of the third network standard and /or the packet data protocol context parameter of the first network standard.

Optionally, the third receiving module is also used for:

Acquire the QoS parameters of the third network standard and/or the packet data protocol context parameters of the first network standard sent by the network device through the bearer modification process.

In order to achieve the above object, an embodiment of the present invention provides a mobility processing apparatus, which is applied to network equipment, including:

a third sending module, configured to send session management parameters to the user equipment when the user equipment initially attaches to the second network standard, wherein the user equipment supports the first network standard, the second network standard and the third network standard; The session management parameters include QoS parameters of the third network standard and/or packet data protocol context parameters of the first network standard.

Optionally, the device further includes:

A third identity acquisition module, configured to acquire the protocol data unit session identity reported by the user equipment before or after the session management parameter is sent to the user equipment.

Optionally, the device further includes:

a first storage module, configured to store the packet data protocol context of the first network standard, the EPS context of the second network standard, and the protocol of the third network standard after sending the session management parameters to the user equipment Data unit session context.

Optionally, the packet data protocol context of the first network standard includes the packet data protocol context parameter.

Optionally, the protocol data unit session context of the third network standard includes QoS parameters.

Optionally, the device further includes:

The connection processing module is configured to communicate with the PCRF+PCF through the N7 interface when the user equipment is switched from the second network standard to the first network standard, wherein the user equipment supports the third network standard.

To achieve the above object, embodiments of the present invention provide a mobility processing apparatus, applied to user equipment, including:

a fourth receiving module, configured to receive session management parameters sent by the network device when the user equipment initially attaches to the second network standard, wherein the user equipment supports the first network standard, the second network standard and the third network standard; the session The management parameters include QoS parameters of the third network standard and/or packet data protocol context parameters of the first network standard.

Optionally, the device further includes:

A third identifier reporting module is configured to report the protocol data unit session identifier before or after the receiving network device sends the session management parameter when the user equipment initially attaches to the second network standard.

Optionally, the device further includes:

A second storage module, configured to store the packet data protocol context of the first network standard and the EPS of the second network standard after receiving the session management parameter sent by the network device when the user equipment initially attaches to the second network standard context and the protocol data unit session context of the third network standard.

Optionally, the packet data protocol context of the first network standard includes the packet data protocol context parameter.

Optionally, the protocol data unit session context of the third network standard includes QoS parameters.

Optionally, the protocol data unit session identifier is allocated by the user equipment when the PDN connection is created.

To achieve the above object, an embodiment of the present invention provides a network device, including: a transceiver and a processor;

The processor is configured to determine whether the user equipment supports the third network standard after the user equipment is switched from the first network standard to the second network standard;

In the case that the user equipment supports the third network standard, the user equipment is triggered to re-attach.

Optionally, the processor is also used for:

acquiring network capability information of the user equipment;

According to the network capability information, it is determined whether the user equipment supports the third network standard.

Optionally, the processor is also used for:

Whether the user equipment supports the third network standard is determined by the N1 mode support flag in the network capability information.

Optionally, the transceiver is used to:

Sending reattach indication information to the user equipment.

Optionally, the transceiver is also used for:

Sending a tracking area update rejection message to the user equipment, wherein the reason indication information for the tracking area update rejection message is the reattachment indication information.

Optionally, the cause indication information indicates an EPG EPS session management failure.

Optionally, the transceiver is further configured to send a tracking area update success message to the user equipment, wherein the packet data protocol context status indication information of the tracking area update success message is the reattachment indication information.

Optionally, the packet data protocol context status indication information indicates that no public data network PDN connection is successfully migrated.

Optionally, the transceiver is further configured to send a detach message to the user equipment when the tracking area is updated successfully, where the detach message is the re-attach indication information.

To achieve the above object, an embodiment of the present invention provides a user equipment, the user equipment supports a first network standard, a second network standard and a third network standard, including: a transceiver and a processor;

The transceiver is configured to receive reattach indication information sent by the network device after the user equipment switches from the first network standard to the second network standard;

The processor is configured to perform reattachment according to the reattachment indication information.

Optionally, the transceiver is also used for:

receiving a tracking area update rejection message sent by the network device, wherein the reason indication information for the tracking area update rejection message is the re-attach indication information; or,

receiving a tracking area update success message sent by the network device, wherein the packet data protocol context status indication information of the tracking area update success message is the reattachment indication information; or

receiving a detachment message sent by the network device when the tracking area update is successful, where the detachment message is the reattachment indication information.

Optionally, the cause indication information indicates an EPS session management failure.

Optionally, the packet data protocol context status indication information indicates that no PDN connection is successfully migrated.

To achieve the above object, an embodiment of the present invention provides a network device, including: a transceiver and a processor;

The transceiver is configured to send session management parameters to the user equipment when the user equipment switches from the first network standard to the second network standard and the user equipment supports the third network standard, wherein the session The management parameters include quality of service QoS parameters of the third network standard and/or packet data protocol context parameters of the first network standard.

Optionally, the transceiver is also used for:

Send the QoS parameter of the third network standard and/or the packet data protocol context parameter of the first network standard to the user equipment through a bearer modification process; or,

Send the QoS parameter of the third network standard and/or the packet data protocol context parameter of the first network standard to the user equipment through a tracking area update response message.

Optionally, the transceiver is also used for:

Before the sending the session management parameter to the user equipment, acquire the protocol data unit session identifier reported by the user equipment.

Optionally, the transceiver is also used for:

The protocol data unit session identifier is acquired through a bearer resource modification request process or a tracking area update process.

Optionally, the transceiver is also used for:

After the session management parameter is sent to the user equipment, the protocol data unit session identifier reported by the user equipment is acquired.

Optionally, the transceiver is also used for:

The protocol data unit session identifier is acquired through the bearer modification process.

Optionally, the processor is used to:

If the user equipment corresponds to a PGW-C+SMF node, and the PGW-C+SMF node is selected by the serving GPRS support node SGSN according to the network capability information or user subscription information of the user equipment, determine the user The device supports the third network standard.

To achieve the above object, an embodiment of the present invention provides a user equipment, the user equipment supports a first network standard, a second network standard and a third network standard, including: a transceiver and a processor;

The transceiver is configured to receive a session management parameter sent by the network device after the user equipment switches from the first network standard to the second network standard, wherein the session management parameter includes the QoS parameter of the third network standard and/ or the packet data protocol context parameter of the first network standard.

Optionally, the transceiver is also used for:

Obtain the QoS parameters of the third network standard and/or the packet data protocol context parameters of the first network standard sent by the network device through the bearer modification process; or,

Acquire the QoS parameter of the third network standard and/or the packet data protocol context parameter of the first network standard sent by the network device through the tracking area update response message.

The transceiver is also used to:

Before receiving the session management parameter sent by the network device after the user equipment switches from the first network standard to the second network standard, the protocol data unit session identifier is reported.

The transceiver is further configured to send the protocol data unit session identifier through a bearer resource modification request process or a tracking area update process.

The transceiver is further configured to: after receiving the session management parameter sent by the network device after the user equipment switches from the first network standard to the second network standard, report the protocol data unit session identifier.

The transceiver is further configured to send the protocol data unit session identifier through a bearer modification procedure.

To achieve the above object, an embodiment of the present invention provides a network device, including: a transceiver and a processor;

The processor is configured to acquire network capability information or user subscription information of the user equipment;

According to the network capability information or user subscription information, a PGW-C+SMF node is selected.

The processor is further configured to determine the PGW-C+SMF node corresponding to the user equipment according to the N1 mode support flag in the network capability information.

To achieve the above object, an embodiment of the present invention provides a network device, including: a transceiver and a processor;

The transceiver is configured to send session management parameters to the user equipment when the user equipment switches from the third network standard to the second network standard and the user equipment supports the first network standard, wherein the session The management parameters include QoS parameters of the third network standard and/or packet data protocol context parameters of the first network standard.

The transceiver is also used to:

Through the bearer modification process, the QoS parameters of the third network standard and/or the packet data protocol context parameters of the first network standard are sent to the user equipment.

To achieve the above object, an embodiment of the present invention provides a user equipment, the user equipment supports a first network standard, a second network standard and a third network standard, including: a transceiver and a processor;

The transceiver is configured to receive session management parameters sent by a network device after the user equipment switches from a third network standard to a second network standard, wherein the session management parameters include QoS parameters of the third network standard and/or or the packet data protocol context parameter of the first network standard.

The transceiver is also used to:

Acquire the QoS parameters of the third network standard and/or the packet data protocol context parameters of the first network standard sent by the network device through the bearer modification process.

To achieve the above object, an embodiment of the present invention provides a network device, including: a transceiver and a processor;

The transceiver is configured to send session management parameters to the user equipment when the user equipment initially attaches to the second network standard, wherein the session management parameters include QoS parameters of the third network standard and/or QoS parameters of the first network standard. Packet data protocol context parameters.

Optionally, the transceiver is further configured to acquire the protocol data unit session identifier reported by the user equipment before or after the session management parameter is sent to the user equipment.

Optionally, the processor is also used for:

The packet data protocol context of the first network standard, the EPS context of the second network standard, and the protocol data unit session context of the third network standard are stored.

Optionally, the packet data protocol context of the first network standard includes the packet data protocol context parameter.

Optionally, the protocol data unit session context of the third network standard includes QoS parameters.

Optionally, the processor is also used for:

When the user equipment is switched from the second network standard to the first network standard, the user equipment communicates with the PCRF+PCF through the N7 interface, wherein the user equipment supports the third network standard.

To achieve the above object, an embodiment of the present invention provides a user equipment, including: a transceiver and a processor;

The transceiver is configured to receive a session management parameter sent by the network device when the user equipment initially attaches to the second network standard, wherein the session management parameter includes the QoS parameter of the third network standard and/or the packet data protocol of the first network standard context parameter.

Optionally, the transceiver is further configured to: before or after the session management parameter sent by the receiving network device when the user equipment initially attaches to the second network standard, report the protocol data unit session identifier.

Optionally, the processor is also used for:

The packet data protocol context of the first network standard, the EPS context of the second network standard, and the protocol data unit session context of the third network standard are stored.

Optionally, the packet data protocol context of the first network standard includes the packet data protocol context parameter.

Optionally, the protocol data unit session context of the third network standard includes QoS parameters.

Optionally, the protocol data unit session identifier is allocated by the user equipment when the PDN connection is created.

To achieve the above object, an embodiment of the present invention provides a communication device, including: a processor, a memory, and a computer program stored in the memory and running on the processor; the processor executes the computer The program implements the above mobility processing method applied to the network device or the user equipment.

In order to achieve the above object, embodiments of the present invention provide a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the above-mentioned application in the mobility processing method of network equipment or user equipment is realized. A step of.

The beneficial effects of the above-mentioned technical solutions of the present invention are as follows:

In the method of the embodiment of the present invention, after the user equipment is switched from the first network standard to the second network standard, firstly determine whether the user equipment supports the third network standard, and then trigger the trigger for the user equipment to support the third network standard. The user equipment is reattached, so that the user equipment can allocate and synchronize parameters of the third network standard through the second network standard and the third network standard fusion anchor to ensure the continuity of the second network standard to the third network standard.

Description of drawings

FIG. 1 is one of the schematic flowcharts of a mobility processing method according to an embodiment of the present invention;

FIG. 2 is a second schematic flowchart of a mobility processing method according to an embodiment of the present invention;

FIG. 3 is a third schematic flowchart of a mobility processing method according to an embodiment of the present invention;

FIG. 4 is a fourth schematic flowchart of a mobility processing method according to an embodiment of the present invention;

FIG. 5 is a fifth schematic flowchart of a mobility processing method according to an embodiment of the present invention;

6 is a sixth schematic flowchart of a mobility processing method according to an embodiment of the present invention;

FIG. 7 is a seventh schematic flowchart of a mobility processing method according to an embodiment of the present invention;

FIG. 8 is an eighth schematic flowchart of a mobility processing method according to an embodiment of the present invention;

9 is a ninth schematic flowchart of a mobility processing method according to an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a mobility processing apparatus according to an embodiment of the present invention;

FIG. 11 is a second schematic structural diagram of a mobility processing apparatus according to an embodiment of the present invention;

FIG. 12 is a third schematic structural diagram of a mobility processing apparatus according to an embodiment of the present invention;

FIG. 13 is a fourth schematic structural diagram of a mobility processing apparatus according to an embodiment of the present invention;

FIG. 14 is a fifth schematic structural diagram of a mobility processing apparatus according to an embodiment of the present invention;

FIG. 15 is a sixth schematic structural diagram of a mobility processing apparatus according to an embodiment of the present invention;

FIG. 16 is a seventh schematic structural diagram of a mobility processing apparatus according to an embodiment of the present invention;

FIG. 17 is an eighth schematic structural diagram of a mobility processing apparatus according to an embodiment of the present invention;

FIG. 18 is a ninth schematic structural diagram of a mobility processing apparatus according to an embodiment of the present invention;

19 is a schematic structural diagram of a network device according to an embodiment of the present invention;

20 is a schematic structural diagram of a user equipment according to an embodiment of the present invention;

FIG. 21 is a schematic structural diagram of a communication device according to an embodiment of the present invention.

Detailed ways

In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, the following will be described in detail with reference to the accompanying drawings and specific embodiments.

It is to be understood that reference throughout the specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic associated with the embodiment is included in at least one embodiment of the present invention. Thus, appearances of "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily necessarily referring to the same embodiment. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments.

In various embodiments of the present invention, it should be understood that the size of the sequence numbers of the following processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, rather than the implementation of the present invention The implementation of the examples constitutes no limitation.

Additionally, the terms "system" and "network" are often used interchangeably herein.

In the embodiments provided by the present invention, it should be understood that "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean that B is only determined according to A, and B may also be determined according to A and/or other information.

As shown in FIG. 1 , a mobility processing method according to an embodiment of the present invention, applied to a network device, includes:

Step 101, after the user equipment switches from the first network standard to the second network standard, determine whether the user equipment supports the third network standard.

Here, the first network standard, the second network standard, and the third network standard are different network standards, and the user equipment UE may support all of them, or may only support some of them. Specifically, for example, the first network standard is 2G or 3G, the second network standard is 4G, and the third network standard is 5G. In this step, after the UE switches from 2G or 3G to 4G, it will be determined whether the UE supports 5G, so as to deal with the capabilities of the UE. Among them, 2G specifically refers to GERAN (GSM/EDGE Radio Access Network, GSM/EDGE Radio Access Network); 3G specifically refers to UTRAN (UMTS Terrestrial Radio Access Network, UMTS Terrestrial Radio Access Network); 4G specifically refers to E-UTRAN ( Evolved Universal Terrestrial Radio Access Network, Evolved UMTS Terrestrial Radio Access Network); 5G specifically refers to the 5G system 5GS.

Step 102: Trigger the user equipment to re-attach when the user equipment supports a third network standard.

In this step, when it is learned that the UE supports 5G through the judgment in step 101, the UE is triggered to re-attach to ensure the continuity of the subsequent 4G to 5G.

Through the above steps 101 and 102, the mobility processing method according to the embodiment of the present invention is applied to a network device, and the network device may be a mobility management entity MME. First determine whether the user equipment supports the third network standard, and then trigger the re-attachment of the user equipment according to the situation that the user equipment supports the third network standard. In this way, the user equipment can integrate the second network standard and the third network standard. The anchor point, allocates and synchronizes the parameters of the third network standard, and ensures the continuity from the second network standard to the third network standard.

For example, when the UE initially accesses 2G and switches to 4G, the MME will determine the capability of the UE, that is, whether it supports 5G. If the UE supports 5G, the MME will trigger the UE to re-attach in 4G, so that the UE can Select the 4/5G fusion anchor point, allocate and synchronize 5G parameters, and realize the continuity of the subsequent UE switching to 5G.

Optionally, the determining whether the user equipment supports a third network standard includes:

acquiring network capability information of the user equipment;

According to the network capability information, it is determined whether the user equipment supports the third network standard.

In this way, the MME can judge the capability of the UE through the network capability information UE network capability of the user equipment.

Optionally, the determining whether the user equipment supports the third network standard according to the network capability information includes:

Whether the user equipment supports the third network standard is determined by the N1 mode support flag in the network capability information.

Here, whether the UE supports a third network standard such as 5G may be further determined by the N1 mode support flag bit (N1 modesupport flag bit) in the UE network capability.

Optionally, the triggering the user equipment to re-attach includes:

Sending re-attach indication information to the user equipment.

In this way, by receiving the reattachment indication information, the UE will perform reattachment based on it.

It should be known that the reattachment indication information may be information dedicated to instructing the UE to reattach, and has a new signaling process. Of course, in order to avoid the consumption of signaling overhead, in this embodiment, the reattachment indication information will be implemented by using an existing signaling process. Optionally, on the one hand, the sending reattachment indication information to the user equipment includes:

Sending a tracking area update rejection message to the user equipment, wherein the reason indication information for the tracking area update rejection message is the reattachment indication information.

Wherein, the reason indication information indicates a failure of the EPS session management of the evolved packet system.

Here, the MME responds with the TAU Reject message to instruct the UE to re-attach. The TAUReject carries the cause indication information cause as the reattachment indication information. Further, the TAU Reject carries the cause as EPS session management failure ESM failure to instruct the UE to re-attach.

On the other hand, optionally, the sending reattachment indication information to the user equipment includes:

Sending a tracking area update success message to the user equipment, wherein the packet data protocol context status indication information of the tracking area update success message is the reattachment indication information.

Wherein, the packet data protocol context status indication information indicates that no public data network PDN connection is successfully migrated.

Here, the MME responds with a TAU success message to instruct the UE to re-attach. And the packet data protocol context status indication PDP context status information in the TAU success message is reattachment indication information. Further, the PDP context status indicates that there is no public data network PDN connection successfully migrated, for example, the PDP context status is empty.

In another aspect, the sending reattachment indication information to the user equipment includes:

In the case that the tracking area update is successful, a detach message is sent to the user equipment, wherein the detach message is the re-attach indication information.

Here, after the TAU is successful, the MME triggers the MME-initiated Detach procedure to detach the MME, and sends a detach message to instruct the UE to re-attach. The detach message is used as re-attach indication information.

To sum up, in the method of the embodiment of the present invention, after the user equipment switches from the first network standard to the second network standard, it is first determined whether the user equipment supports the third network standard, and then the user equipment supports the third network standard. In the case of the standard, the re-attachment of the user equipment is triggered. In this way, the user equipment can allocate and synchronize the parameters of the third network standard through the fusion anchor point of the second network standard and the third network standard, so as to ensure the second network standard to the third network standard. continuity.

As shown in FIG. 2 , a mobility processing method according to an embodiment of the present invention is applied to user equipment, where the user equipment supports a first network standard, a second network standard, and a third network standard, and the method includes:

Step 201: Receive reattachment indication information sent by a network device after the user equipment switches from a first network standard to a second network standard.

Step 202: Perform reattachment according to the reattachment instruction information.

Here, the first network standard, the second network standard and the third network standard supported by the UE are different network standards, for example, the first network standard is 2G or 3G, the second network standard is 4G, and the third network standard is 5G. In this step, the re-attachment instruction information sent by the network device after the UE switches from the first network mode to the second network mode is received, so that the re-attachment is performed according to the re-attachment instruction information. The standard fusion anchor point, allocates and synchronizes the parameters of the third network standard, and ensures the continuity of the second network standard to the third network standard.

If the UE initially accesses 2G and switches to 4G, the MME will determine the capability of the UE, that is, whether it supports 5G. If the UE supports 5G, the MME will trigger the UE to re-attach in 4G and send the re-attach indication information. To the UE, after receiving the re-attach indication information, the UE performs 4G re-attachment, so that the UE selects the 4/5G fusion anchor point, allocates and synchronizes 5G parameters, and realizes the continuity of the subsequent 5G switching of the UE.

Optionally, the receiving re-attach indication information sent by the network device after the user equipment switches from the first network standard to the second network standard includes:

receiving a tracking area update rejection message sent by the network device, wherein the reason indication information for the tracking area update rejection message is the re-attach indication information; or,

receiving a tracking area update success message sent by the network device, wherein the packet data protocol context status indication information of the tracking area update success message is the reattachment indication information; or

receiving a detachment message sent by the network device when the tracking area update is successful, where the detachment message is the reattachment indication information.

Here, corresponding to the implementation manner of sending the re-attachment indication information in the previous embodiment, a corresponding implementation of receiving can be performed, which is not repeated here.

Optionally, the cause indication information indicates an EPS session management failure.

Optionally, the packet data protocol context status indication information indicates that no PDN connection is successfully migrated.

As shown in FIG. 3 , a mobility processing method according to an embodiment of the present invention, applied to a network device, includes:

Step 301 , when the user equipment switches from the first network standard to the second network standard, and the user equipment supports the third network standard, send session management parameters to the user equipment, wherein the session management parameters include The quality of service QoS parameter of the third network standard and/or the packet data protocol context parameter of the first network standard.

Here, the first network standard, the second network standard, and the third network standard are different network standards, and the UE may support all of them, or may only support some of them. Specifically, for example, the first network standard is 2G or 3G, the second network standard is 4G, and the third network standard is 5G. In this step, the network equipment to which the method of the embodiment of the present invention is applied, such as the core network (PGW-C+SMF (the fusion equipment SMF of the PDN gateway control plane PGW-C and the session management function) or PCRF+PCF (policy and charging rules) The fusion device of the function PCRF and the policy control function PCF)), when the UE switches from the first network standard to the second network standard and supports the third network standard, it will include the third network standard. And/or the session management parameter of the packet data protocol context parameter of the first network standard is sent to the UE, so that the UE can implement subsequent network standard switching through the session management parameter and avoid the occurrence of service interruption.

For example, if the UE initially accesses 2G or 3G and switches to 4G, and the UE supports 5G, the core network will send 5G QoS parameters and/or 2G or 3GPDP context parameters to the UE, so that the UE can pass the 5G QoS parameters And/or 2G or 3GPDP context parameters to implement subsequent network format switching to avoid service interruption.

Optionally, the sending the session management parameter to the user equipment includes:

Send the QoS parameter of the third network standard and/or the packet data protocol context parameter of the first network standard to the user equipment through a bearer modification process; or,

Send the QoS parameter of the third network standard and/or the packet data protocol context parameter of the first network standard to the user equipment through a tracking area update response message.

In this way, the core network can send 5G QoS parameters and/or 2G or 3G PDP context parameters through the Bearer Modification Procedure. Specifically, in step 4 of the Bearer ModificationProcedure, 5G QoS parameters and/or 2G or 3G PDP context parameters are sent, such as a non-access stratum NAS message to modify EPS bearer context request Modify EPS bearer context request. Alternatively, 5G QoS parameters and/or 2G or 3G PDP context parameters are sent through a TAU response message.

Optionally, before the sending the session management parameters to the user equipment, the method further includes:

Obtain the session identifier of the protocol data unit reported by the user equipment.

In this way, before sending the session management parameters to the UE, the core network will obtain the PDU Session ID reported by the UE, that is, the core network will only perform session management on the UE after receiving the PDU Session ID reported by the UE. sending of parameters.

Wherein, the acquiring the protocol data unit session identifier reported by the user equipment includes:

The protocol data unit session identifier is acquired through a bearer resource modification request process or a tracking area update process.

Here, the core network receives the PDU Session ID sent by the UE through the requested bearer resource modification process or the tracking area update TAU process.

On the other hand, optionally, after the sending the session management parameters to the user equipment, the method further includes:

Obtain the session identifier of the protocol data unit reported by the user equipment.

In this way, the core network acquires the PDU SessionID reported by the UE only after sending the session management parameter to the UE.

Optionally, the acquiring the protocol data unit session identifier reported by the user equipment includes:

The protocol data unit session identifier is acquired through the bearer modification process.

Here, the core network obtains the PDU Session ID through the Bearer Modification Procedure.

It should be known that, in this embodiment, the PDU Session ID is allocated by the UE when the UE creates the public data network connection PDNconnection. Both the UE and the core network locally store the packet data protocol context PDP context of the first network standard, the EPS context EPS Context of the second network standard, and the protocol data unit session context PDU Session Context of the third network standard based on the session management parameters. The session management parameters include 5G QoS parameters and/or 2G or 3G PDP context parameters, and the UE and the core network will store the 2G or 3G PDP context, EPS Context, and 5G PDU Session Context. The 2G or 3G PDP context includes PDP context parameters, and the 5G PDU Session Context includes QoS parameters. Moreover, the UE with 5G capability switches from 4G to 2G, and the PGW-C+SMF communicates with the PCRF+PCF through the N7 interface.

In this embodiment, before the sending the session management parameter to the user equipment, the method further includes:

If the user equipment corresponds to a PGW-C+SMF node, and the PGW-C+SMF node is selected by the serving GPRS support node SGSN according to the network capability information or user subscription information of the user equipment, determine the user The device supports the third network standard.

Here, considering that when 2G or 3G activates the PDP context, the SGSN in the core network will select a PGW-C+SMF node according to the UE NetworkCapability information or user subscription information. Therefore, it will be based on whether the UE has the PGW-C+SMF node. to determine whether the UE supports 5G.

Below, the method of the embodiment of the present invention may be described in combination with specific scenarios:

Scenario 1: After the UE moves (handover) from 2G or 3G to 4G

a) When 2G or 3G activates the PDP context, the SGSN needs to decide to select a PGW-C+SMF node according to the UE Network Capability information or user subscription information;

b) The multi-mode UE with 5G capability carries the PDU Session ID to the core network (SMF+PGW-C) through the requested bearer resource modification or TAU process;

c) After the core network receives the request, the core network (PGW-C+SMF or PCRF+PCF) triggers the Bearer ModificationProcedure process, and in step 4 sends the 5G QoS parameters and/or the 2G or 3G PDP context parameters to the UE, such as : NAS message Modify EPS bearer context request. Alternatively, the 5G QoS parameters and/or the 2G or 3G PDP context parameters are notified to the UE through the TAU response.

Scenario 2. After the UE moves (switches) from 2G or 3G to 4G

a) When 2G or 3G activates the PDP context, the SGSN needs to decide to select a PGW-C+SMF node according to the UE Network Capability information or user subscription information;

b) The core network (PGW-C+SMF or PCRF+PCF) triggers the Bearer Modification Procedure, and in step 4, the 5G QoS parameters and/or the 2G or 3G PDP context parameters are sent to the UE. Such as: NAS message Modify EPS bearer context request.

c) The UE needs to connect according to the 4G PDN, and carry the PDU Session ID information to the core network in step 6.

To sum up, in the method of the embodiment of the present invention, when the UE switches from the first network standard to the second network standard and supports the third network standard, the QoS parameters including the third network standard and the /or the session management parameter of the packet data protocol context parameter of the first network standard is sent to the UE, so that the UE can implement subsequent network standard switching through the session management parameter, so as to avoid the occurrence of service interruption.

As shown in FIG. 4 , a mobility processing method according to an embodiment of the present invention is applied to user equipment, where the user equipment supports a first network standard, a second network standard, and a third network standard, and the method includes:

Step 401: Receive a session management parameter sent by a network device after the user equipment switches from a first network standard to a second network standard, wherein the session management parameter includes the QoS parameter of the third network standard and/or the Packet data protocol context parameters of the first network standard.

Here, the first network standard, the second network standard, and the third network standard are different network standards, and the UE may support all of them, or may only support some of them. Specifically, for example, the first network standard is 2G or 3G, the second network standard is 4G, and the third network standard is 5G. In this step, the user equipment applying the method of the embodiment of the present invention receives the network equipment (such as PGW-C+SMF or PCRF+PCF in the core network), and after the UE switches from the first network standard to the second network standard, sends the The session management parameter including the quality of service QoS parameter of the third network standard and/or the packet data protocol context parameter of the first network standard, so that the UE can realize subsequent network standard switching through the received session management parameter, avoiding Occurrence of business interruption.

For example, if the UE initially accesses 2G or 3G and switches to 4G, and the UE supports 5G, the core network will send 5G QoS parameters and/or 2G or 3GPDP context parameters to the UE, and the UE will receive 5G QoS parameters and/or Or 2G or 3GPDP context parameters, and can realize subsequent network standard switching through 5G QoS parameters and/or 2G or 3GPDP context parameters, so as to avoid the occurrence of service interruption.

Optionally, the receiving session management parameters sent by the network device after the user equipment switches from the first network standard to the second network standard, including:

Obtain the QoS parameters of the third network standard and/or the packet data protocol context parameters of the first network standard sent by the network device through the bearer modification process; or,

Acquire the QoS parameter of the third network standard and/or the packet data protocol context parameter of the first network standard sent by the network device through the tracking area update response message.

Corresponding to the implementation manner of sending session management parameters in the previous embodiment, corresponding reception will be performed in this embodiment, which will not be repeated here.

Optionally, before the receiving the session management parameter sent by the network device after the user equipment switches from the first network standard to the second network standard, the method further includes:

Report protocol data unit session identifier.

Here, the UE reports the PDU Session ID before receiving the session management parameters, so that the core network sends the session management parameters to the UE only after receiving the PDU Session ID reported by the UE.

Optionally, the reporting protocol data unit session identifier includes:

The protocol data unit session identifier is sent through a bearer resource modification request process or a tracking area update process.

Here, the UE receives the PDU Session ID sent by the UE through the requested bearer resource modification process or the tracking area update TAU process.

On the other hand, optionally, after the receiving the session management parameter sent by the network device after the user equipment switches from the first network standard to the second network standard, the method further includes:

Report protocol data unit session identifier.

Here, the UE will report the PDU Session ID after receiving the session management parameters.

Optionally, the reporting protocol data unit session identifier includes:

The protocol data unit session identifier is sent through the bearer modification process.

Here, the UE obtains the PDU Session ID through the Bearer Modification Procedure.

As shown in FIG. 5 , a mobility processing method according to an embodiment of the present invention, applied to a network device, includes:

Step 501, acquiring network capability information or user subscription information of the user equipment;

Step 502: Select a PGW-C+SMF node according to the network capability information or user subscription information.

Here, the network device applying the method of the embodiment of the present invention, such as the SGSN, first obtains UE NetworkCapability information or user subscription information, and then selects a PGW-C+SMF node according to the obtained UE Network Capability information or user subscription information. In this way, the core network can determine the capability of the UE according to whether the UE has the PGW-C+SMF node, that is, whether the UE supports 5G, so as to realize the continuity guarantee of the UE with the method of the above embodiment.

Specifically, when the 2G or 3G activates the PDP context, the SGSN selects the PGW-C+SMF node according to the UE NetworkCapability information or user subscription information obtained in step 501 .

Optionally, in step 502, selecting a PGW-C+SMF node according to the network capability information, including:

Determine the PGW-C+SMF node corresponding to the user equipment according to the N1 mode support flag in the network capability information.

Here, for the UE Network Capability information, the SGSN will further determine the PGW-C+SMF node corresponding to the UE based on the N1 mode support flag (N1 mode support flag) in the UE Network Capability information.

As shown in FIG. 6 , the mobility processing method according to the embodiment of the present invention, applied to a network device, includes:

Step 601, when the user equipment switches from the third network standard to the second network standard, and the user equipment supports the first network standard, send session management parameters to the user equipment, wherein the session management parameters include The QoS parameters of the third network standard and/or the packet data protocol context parameters of the first network standard.

Here, the first network standard, the second network standard and the third network standard are different network standards. Specifically, for example, the first network standard is 2G or 3G, the second network standard is 4G, and the third network standard is 5G. In this step, the network device applying the method of the embodiment of the present invention, such as the core network (PGW-C+SMF or PCRF+PCF), switches from the third network standard to the second network standard in the UE, and supports the first network standard In this case, the session management parameters including the quality of service QoS parameters of the third network standard and/or the packet data protocol context parameters of the first network standard will be sent to the UE, so that the UE can implement the subsequent network through the session management parameters. Mode switching to avoid business interruption.

For example, when the UE initially accesses 5G and switches to 4G, and the UE supports 2G or 3G, the core network will send 5G QoS parameters and/or 2G or 3G PDP context parameters to the UE, so that the UE can pass 5G QoS parameters and/or 2G or 3G PDP context parameters implement subsequent network standard switching to avoid service interruption.

Optionally, the sending the session management parameter to the user equipment includes:

Through the bearer modification process, the QoS parameters of the third network standard and/or the packet data protocol context parameters of the first network standard are sent to the user equipment.

In this way, the core network can send 5G QoS parameters and/or 2G or 3G PDP context parameters through the Bearer Modification Procedure. Specifically, in step 4 of the Bearer ModificationProcedure, 5G QoS parameters and/or 2G or 3G PDP context parameters are sent, such as a non-access stratum NAS message to modify EPS bearer context request Modify EPS bearer context request.

It should also be known that in this embodiment, both the UE and the core network locally store the packet data protocol context PDP context of the first network standard, the EPS context EPS Context of the second network standard, and the protocol of the third network standard based on session management parameters. Data Unit Session Context PDU Session Context. The session management parameters include 5GQoS parameters and/or 2G or 3G PDP context parameters, and the UE and the core network will store the 2G or 3GPDP context, EPS Context, and 5G PDU Session Context. The 2G or 3G PDP context includes PDP context parameters, and the 5G PDU Session Context includes QoS parameters. Moreover, the UE with 5G capability switches from 4G to 2G, and the PGW-C+SMF communicates with the PCRF+PCF through the N7 interface.

As shown in FIG. 7 , a mobility processing method according to an embodiment of the present invention is applied to user equipment, where the user equipment supports a first network standard, a second network standard, and a third network standard, and the method includes:

Step 701: Receive session management parameters sent by a network device after the user equipment switches from a third network standard to a second network standard, wherein the session management parameters include QoS parameters of the third network standard and/or the Packet data protocol context parameters of the first network standard.

Here, the first network standard, the second network standard and the third network standard are different network standards. Specifically, for example, the first network standard is 2G or 3G, the second network standard is 4G, and the third network standard is 5G. In this step, the user equipment applying the method of the embodiment of the present invention receives the network equipment (such as PGW-C+SMF or PCRF+PCF in the core network), and after the UE switches from the third network standard to the second network standard, sends the The session management parameter including the quality of service QoS parameter of the third network standard and/or the packet data protocol context parameter of the first network standard, so that the UE can implement subsequent network standard switching through the received session management parameter, avoiding Occurrence of business interruption.

For example, when the UE initially accesses 5G and switches to 4G, and the UE supports 2G or 3G, the core network will send 5G QoS parameters and/or 2G or 3G PDP context parameters to the UE, and the UE will receive 5G QoS parameters and /or 2G or 3G PDP context parameters, and can implement subsequent network standard switching through 5G QoS parameters and/or 2G or 3G PDP context parameters to avoid service interruption.

Optionally, the receiving session management parameters sent by the network device after the user equipment switches from the third network standard to the first network standard, including:

Acquire the QoS parameters of the third network standard and/or the packet data protocol context parameters of the first network standard sent by the network device through the bearer modification process.

As shown in FIG. 8 , a mobility processing method according to an embodiment of the present invention, applied to a network device, includes:

Step 801: When the user equipment initially attaches to the second network standard, send session management parameters to the user equipment, wherein the session management parameters include the QoS parameters of the third network standard and/or the packet data protocol of the first network standard context parameter.

Here, the first network standard is 2G or 3G, the second network standard is 4G, and the third network standard is 5G. In this step, the network device applying the method of the embodiment of the present invention, such as PGW-C+SMF, when the UE initially attaches to the second network standard, will include the quality of service QoS parameter of the third network standard and/or the first network standard. The session management parameter of the packet data protocol context parameter of the network standard is sent to the UE, so that the UE can implement subsequent network standard switching through the session management parameter, so as to avoid the occurrence of service interruption.

For example, after a UE supporting 2G or 3G, 4G, and 5G attaches to 4G, the PGW-C+SMF will send 5G QoS parameters and/or 2G or 3G PDP context parameters to the UE, so that the UE can pass the 5G QoS parameters and/or 2G or 3G PDP context parameters implement subsequent network format switching to avoid service interruption.

Optionally, before or after the sending the session management parameters to the user equipment, the method further includes:

Obtain the session identifier of the protocol data unit reported by the user equipment.

In this way, on the one hand, the network device can first obtain the PDU Session ID reported by the UE, and then send the session management parameters to the UE; on the other hand, it can obtain the PDU Session ID reported by the UE after sending the session management parameters to the UE. of.

Optionally, after the sending the session management parameters to the user equipment, the method further includes:

The packet data protocol context of the first network standard, the EPS context of the second network standard, and the protocol data unit session context of the third network standard are stored.

Wherein, the packet data protocol context of the first network standard includes the packet data protocol context parameter.

Wherein, the protocol data unit session context of the third network standard includes QoS parameters.

In this way, the core network such as PGW-C+SMF locally stores the packet data protocol context PDP context of the first network standard, the EPS context EPS Context of the second network standard, and the protocol data unit session context PDU of the third network standard based on the session management parameters. SessionContext. The session management parameters include 5G QoS parameters and/or 2G or 3G PDP context parameters, and the PGW-C+SMF will store the 2G/3G PDP context, EPSContext, and 5G PDU Session Context. The 2G/3G PDP context includes PDP context parameters, and the 5G PDU Session Context includes QoS parameters.

Similarly, the UE also performs the above storage.

In addition, optionally, the method further includes:

When the user equipment is switched from the second network standard to the first network standard, the user equipment communicates with the PCRF+PCF through the N7 interface, wherein the user equipment supports the third network standard.

In this way, the UE with 5G capability moves from 4G to 2G, and the PGW-C+SMF communicates with the PCRF+PCF through the N7 interface.

As shown in FIG. 9 , a mobility processing method according to an embodiment of the present invention, applied to a user equipment, includes:

Step 901: Receive session management parameters sent by a network device when the user equipment initially attaches to the second network standard, where the session management parameters include QoS parameters of the third network standard and/or packet data protocol context parameters of the first network standard.

Here, the first network standard is 2G or 3G, the second network standard is 4G, and the third network standard is 5G. In this step, the user equipment applying the method of the embodiment of the present invention receives the QoS parameters of the third network standard and/or the QoS parameters sent by the network device such as PGW-C+SMF when the UE initially attaches to the second network standard. The session management parameter of the packet data protocol context parameter of the first network standard can realize subsequent network standard switching through the session management parameter, thereby avoiding the occurrence of service interruption.

For example, after a UE supporting 2G, 3G, 4G, and 5G is attached to 4G, the PGW-C+SMF will send 5G QoS parameters and/or 2G or 3G PDP context parameters to the UE. After the UE receives it, it can pass the 5G QoS parameters and / or 2G or 3G PDP context parameters to implement subsequent network format switching to avoid service interruption.

Optionally, before or after the session management parameter sent by the network device when the user equipment initially attaches to the second network standard, the method further includes:

Report protocol data unit session identifier.

In this way, on the one hand, the network device can first obtain the PDU Session ID reported by the UE, and then send the session management parameters to the UE; on the other hand, it can obtain the PDU Session ID reported by the UE after sending the session management parameters to the UE. of.

Optionally, after the receiving the session management parameter sent by the network device when the user equipment initially attaches to the second network standard, the method further includes:

The packet data protocol context of the first network standard, the EPS context of the second network standard, and the protocol data unit session context of the third network standard are stored.

Wherein, the packet data protocol context of the first network standard includes the packet data protocol context parameter.

Wherein, the protocol data unit session context of the third network standard includes QoS parameters.

In this way, the UE locally stores the packet data protocol context PDP context of the first network standard, the EPS context EPS Context of the second network standard, and the protocol data unit session context PDU Session Context of the third network standard based on the session management parameters. The session management parameters include 5G QoS parameters and/or 2G or 3GPDP context parameters, and the UE will store the 2G or 3G PDP context, EPS Context, and 5G PDUSession Context. The 2G or 3G PDP context includes PDP context parameters, and the 5G PDUSession Context includes QoS parameters.

Wherein, the protocol data unit session identifier is allocated by the user equipment when the PDN connection is created.

That is, the PDU Session ID is allocated by the UE when the PDN connection is created.

As shown in FIG. 10 , a mobility processing apparatus according to an embodiment of the present invention, applied to a network device, includes:

a first determining module 1010, configured to determine whether the user equipment supports the third network standard after the user equipment is switched from the first network standard to the second network standard;

The first processing module 1020 is configured to trigger the user equipment to re-attach when the user equipment supports a third network standard.

Optionally, the first determining module further includes:

a first acquisition submodule, configured to acquire network capability information of the user equipment;

The first judging submodule is configured to judge whether the user equipment supports the third network standard according to the network capability information.

Optionally, the first judgment submodule is also used for:

Whether the user equipment supports the third network standard is determined by the N1 mode support flag in the network capability information.

Optionally, the first processing module is also used for:

Sending re-attach indication information to the user equipment.

Optionally, the first processing module is also used for:

Sending a tracking area update rejection message to the user equipment, wherein the reason indication information for the tracking area update rejection message is the reattachment indication information.

Wherein, the reason indication information indicates a failure of the EPS session management of the evolved packet system.

Optionally, the first processing module is also used for:

Sending a tracking area update success message to the user equipment, wherein the packet data protocol context status indication information of the tracking area update success message is the reattachment indication information.

Wherein, the packet data protocol context status indication information indicates that no public data network PDN connection is successfully migrated.

Optionally, the first processing module is also used for:

In the case that the tracking area update is successful, a detach message is sent to the user equipment, wherein the detach message is the re-attach indication information.

It should be noted that the device is a device to which the above-mentioned method is applied, and the implementation manner of the above-mentioned method embodiment is applicable to the device, and the same technical effect can also be achieved.

As shown in FIG. 11 , a mobility processing apparatus according to an embodiment of the present invention is applied to user equipment, where the user equipment supports a first network standard, a second network standard, and a third network standard, and the apparatus includes:

a first receiving module 1110, configured to receive reattachment indication information sent by the network device after the user equipment switches from the first network standard to the second network standard;

The second processing module 1120 is configured to perform reattachment according to the reattachment indication information.

Optionally, the first receiving module is also used for:

receiving a tracking area update rejection message sent by the network device, wherein the reason indication information for the tracking area update rejection message is the re-attach indication information; or,

receiving a tracking area update success message sent by the network device, wherein the packet data protocol context status indication information of the tracking area update success message is the reattachment indication information; or

receiving a detachment message sent by the network device when the tracking area update is successful, where the detachment message is the reattachment indication information.

Optionally, the cause indication information indicates an EPS session management failure.

Optionally, the packet data protocol context status indication information indicates that no PDN connection is successfully migrated.

It should be noted that the device is a device to which the above-mentioned method is applied, and the implementation manner of the above-mentioned method embodiment is applicable to the device, and the same technical effect can also be achieved.

As shown in FIG. 12 , a mobility processing apparatus according to an embodiment of the present invention, applied to a network device, includes:

The first sending module 1210 is configured to send session management parameters to the user equipment when the user equipment switches from the first network standard to the second network standard and the user equipment supports the third network standard, wherein the The session management parameter includes the quality of service QoS parameter of the third network standard and/or the packet data protocol context parameter of the first network standard.

Optionally, the first sending module is further configured to:

Send the QoS parameter of the third network standard and/or the packet data protocol context parameter of the first network standard to the user equipment through a bearer modification process; or,

Send the QoS parameter of the third network standard and/or the packet data protocol context parameter of the first network standard to the user equipment through a tracking area update response message.

Optionally, the device further includes:

The first identifier acquisition module is configured to acquire the protocol data unit session identifier reported by the user equipment before the session management parameter is sent to the user equipment.

Optionally, the first identification acquisition module is also used for:

The protocol data unit session identifier is acquired through a bearer resource modification request process or a tracking area update process.

Optionally, the device further includes:

The second identifier acquisition module is configured to acquire the protocol data unit session identifier reported by the user equipment after the session management parameter is sent to the user equipment.

Optionally, the second identification acquisition module is also used for:

The protocol data unit session identifier is acquired through the bearer modification process.

Optionally, the device further includes:

The capability judgment module is used for if the user equipment corresponds to a PGW-C+SMF node, and the PGW-C+SMF node is the serving GPRS support node SGSN selected according to the network capability information or user subscription information of the user equipment. , it is determined that the user equipment supports the third network standard.

It should be noted that the device is a device to which the above-mentioned method is applied, and the implementation manner of the above-mentioned method embodiment is applicable to the device, and the same technical effect can also be achieved.

As shown in FIG. 13 , a mobility processing apparatus according to an embodiment of the present invention is applied to user equipment, where the user equipment supports a first network standard, a second network standard, and a third network standard, and the apparatus includes:

The second receiving module 1310 is configured to receive session management parameters sent by the network device after the user equipment switches from the first network standard to the second network standard, where the session management parameters include QoS parameters of the third network standard and/or the packet data protocol context parameter of the first network standard.

Optionally, the second receiving module is also used for:

Obtain the QoS parameters of the third network standard and/or the packet data protocol context parameters of the first network standard sent by the network device through the bearer modification process; or,

Acquire the QoS parameter of the third network standard and/or the packet data protocol context parameter of the first network standard sent by the network device through the tracking area update response message.

Optionally, the device further includes:

A first identifier reporting module, configured to report the protocol data unit session identifier before the receiving network device sends the session management parameter after the user equipment switches from the first network standard to the second network standard.

Optionally, the first identification reporting module is also used for:

The protocol data unit session identifier is sent through a bearer resource modification request process or a tracking area update process.

Optionally, the device further includes:

The second identifier reporting module is configured to report the protocol data unit session identifier after the receiving network device sends the session management parameter after the user equipment switches from the first network standard to the second network standard.

Optionally, the second identification reporting module is also used for:

The protocol data unit session identifier is sent through the bearer modification process.

It should be noted that the device is a device to which the above-mentioned method is applied, and the implementation manner of the above-mentioned method embodiment is applicable to the device, and the same technical effect can also be achieved.

As shown in FIG. 14 , a mobility processing apparatus according to an embodiment of the present invention, applied to a network device, includes:

an obtaining module 1410, configured to obtain network capability information or user subscription information of the user equipment;

The selection module 1420 is configured to select a PGW-C+SMF node according to the network capability information or user subscription information.

Optionally, the selection module is also used for:

Determine the PGW-C+SMF node corresponding to the user equipment according to the N1 mode support flag in the network capability information.

It should be noted that the device is a device to which the above-mentioned method is applied, and the implementation manner of the above-mentioned method embodiment is applicable to the device, and the same technical effect can also be achieved.

As shown in FIG. 15 , a mobility processing apparatus according to an embodiment of the present invention, applied to a network device, includes:

The second sending module 1510 is configured to send the session management parameter to the user equipment when the user equipment switches from the third network standard to the second network standard and the user equipment supports the first network standard, wherein the The session management parameters include QoS parameters of the third network standard and/or packet data protocol context parameters of the first network standard.

Optionally, the second sending module is further configured to:

Through the bearer modification process, the QoS parameters of the third network standard and/or the packet data protocol context parameters of the first network standard are sent to the user equipment.

It should be noted that the device is a device to which the above-mentioned method is applied, and the implementation manner of the above-mentioned method embodiment is applicable to the device, and the same technical effect can also be achieved.

As shown in FIG. 16 , a mobility processing apparatus according to an embodiment of the present invention is applied to user equipment, where the user equipment supports a first network standard, a second network standard, and a third network standard, and the apparatus includes:

The third receiving module 1610 is configured to receive a session management parameter sent by a network device after the user equipment switches from a third network standard to a second network standard, where the session management parameter includes a QoS parameter of the third network standard and/or the packet data protocol context parameter of the first network standard.

Optionally, the third receiving module is also used for:

Acquire the QoS parameters of the third network standard and/or the packet data protocol context parameters of the first network standard sent by the network device through the bearer modification process.

It should be noted that the device is a device to which the above-mentioned method is applied, and the implementation manner of the above-mentioned method embodiment is applicable to the device, and the same technical effect can also be achieved.

As shown in FIG. 17 , a mobility processing apparatus according to an embodiment of the present invention, applied to a network device, includes:

The third sending module 1710 is configured to send session management parameters to the user equipment when the user equipment initially attaches to the second network standard, wherein the user equipment supports the first network standard, the second network standard and the third network standard ; the session management parameters include QoS parameters of the third network standard and/or packet data protocol context parameters of the first network standard.

Optionally, the device further includes:

A third identity acquisition module, configured to acquire the protocol data unit session identity reported by the user equipment before or after the session management parameter is sent to the user equipment.

Optionally, the device further includes:

a first storage module, configured to store the packet data protocol context of the first network standard, the EPS context of the second network standard, and the protocol of the third network standard after sending the session management parameters to the user equipment Data unit session context.

Optionally, the packet data protocol context of the first network standard includes the packet data protocol context parameter.

Optionally, the protocol data unit session context of the third network standard includes QoS parameters.

Optionally, the device further includes:

The connection processing module is configured to communicate with the PCRF+PCF through the N7 interface when the user equipment is switched from the second network standard to the first network standard, wherein the user equipment supports the third network standard.

It should be noted that the device is a device to which the above-mentioned method is applied, and the implementation manner of the above-mentioned method embodiment is applicable to the device, and the same technical effect can also be achieved.

As shown in FIG. 18 , a mobility processing apparatus according to an embodiment of the present invention, applied to user equipment, includes:

The fourth receiving module 1810 is configured to receive session management parameters sent by the network device when the user equipment initially attaches to the second network standard, wherein the user equipment supports the first network standard, the second network standard and the third network standard; the The session management parameters include QoS parameters of the third network standard and/or packet data protocol context parameters of the first network standard.

Optionally, the device further includes:

A third identifier reporting module is configured to report the protocol data unit session identifier before or after the receiving network device sends the session management parameter when the user equipment initially attaches to the second network standard.

Optionally, the device further includes:

A second storage module, configured to store the packet data protocol context of the first network standard and the EPS of the second network standard after receiving the session management parameter sent by the network device when the user equipment initially attaches to the second network standard context and the protocol data unit session context of the third network standard.

Optionally, the packet data protocol context of the first network standard includes the packet data protocol context parameter.

Optionally, the protocol data unit session context of the third network standard includes QoS parameters.

Optionally, the protocol data unit session identifier is allocated by the user equipment when the PDN connection is created.

It should be noted that the device is a device to which the above-mentioned method is applied, and the implementation manner of the above-mentioned method embodiment is applicable to the device, and the same technical effect can also be achieved.

In addition, a network device 1900 as shown in FIG. 19 includes: a transceiver 1920 and a processor 1910 .

A network device according to an embodiment of the present invention, as shown in FIG. 19 , includes a transceiver 1920 and a processor 1910 .

The processor is configured to determine whether the user equipment supports the third network standard after the user equipment is switched from the first network standard to the second network standard;

In the case that the user equipment supports the third network standard, the user equipment is triggered to re-attach.

Optionally, the processor is also used for:

acquiring network capability information of the user equipment;

According to the network capability information, it is determined whether the user equipment supports the third network standard.

Optionally, the processor is also used for:

Whether the user equipment supports the third network standard is determined by the N1 mode support flag in the network capability information.

Optionally, the transceiver is used to:

Sending re-attach indication information to the user equipment.

Optionally, the transceiver is also used for:

Sending a tracking area update rejection message to the user equipment, wherein the reason indication information for the tracking area update rejection message is the reattachment indication information.

Optionally, the cause indication information indicates an EPG EPS session management failure.

Optionally, the transceiver is further configured to send a tracking area update success message to the user equipment, wherein the packet data protocol context status indication information of the tracking area update success message is the reattachment indication information.

Optionally, the packet data protocol context status indication information indicates that no public data network PDN connection is successfully migrated.

Optionally, the transceiver is further configured to send a detach message to the user equipment when the tracking area is updated successfully, where the detach message is the re-attach indication information.

A network device according to another embodiment of the present invention, as shown in FIG. 19 , includes a transceiver 1920 and a processor 1910 .

The transceiver is configured to send session management parameters to the user equipment when the user equipment switches from the first network standard to the second network standard and the user equipment supports the third network standard, wherein the session The management parameters include quality of service QoS parameters of the third network standard and/or packet data protocol context parameters of the first network standard.

Optionally, the transceiver is also used for:

Send the QoS parameter of the third network standard and/or the packet data protocol context parameter of the first network standard to the user equipment through a bearer modification process; or,

Send the QoS parameter of the third network standard and/or the packet data protocol context parameter of the first network standard to the user equipment through a tracking area update response message.

Optionally, the transceiver is also used for:

Before the sending the session management parameter to the user equipment, acquire the protocol data unit session identifier reported by the user equipment.

Optionally, the transceiver is also used for:

The protocol data unit session identifier is acquired through a bearer resource modification request process or a tracking area update process.

Optionally, the transceiver is also used for:

After the session management parameter is sent to the user equipment, the protocol data unit session identifier reported by the user equipment is acquired.

Optionally, the transceiver is also used for:

The protocol data unit session identifier is acquired through the bearer modification process.

Optionally, the processor is used to:

If the user equipment corresponds to a PGW-C+SMF node, and the PGW-C+SMF node is selected by the serving GPRS support node SGSN according to the network capability information or user subscription information of the user equipment, determine the user The device supports the third network standard.

A network device according to another embodiment of the present invention, as shown in FIG. 19 , includes a transceiver 1920 and a processor 1910 .

The processor is configured to acquire network capability information or user subscription information of the user equipment;

According to the network capability information or user subscription information, a PGW-C+SMF node is selected.

The processor is further configured to determine the PGW-C+SMF node corresponding to the user equipment according to the N1 mode support flag in the network capability information.

A network device according to another embodiment of the present invention, as shown in FIG. 19 , includes a transceiver 1920 and a processor 1910 .

The transceiver is configured to send session management parameters to the user equipment when the user equipment switches from the third network standard to the second network standard and the user equipment supports the first network standard, wherein the session The management parameters include QoS parameters of the third network standard and/or packet data protocol context parameters of the first network standard.

The transceiver is also used to:

Through the bearer modification process, the QoS parameters of the third network standard and/or the packet data protocol context parameters of the first network standard are sent to the user equipment.

A network device according to another embodiment of the present invention, as shown in FIG. 19 , includes a transceiver 1920 and a processor 1910 .

The transceiver is configured to send session management parameters to the user equipment when the user equipment initially attaches to the second network standard, wherein the session management parameters include QoS parameters of the third network standard and/or QoS parameters of the first network standard. Packet data protocol context parameters.

Optionally, the transceiver is further configured to acquire the protocol data unit session identifier reported by the user equipment before or after the session management parameter is sent to the user equipment.

Optionally, the processor is also used for:

The packet data protocol context of the first network standard, the EPS context of the second network standard, and the protocol data unit session context of the third network standard are stored.

Optionally, the packet data protocol context of the first network standard includes the packet data protocol context parameter.

Optionally, the protocol data unit session context of the third network standard includes QoS parameters.

Optionally, the processor is also used for:

When the user equipment is switched from the second network standard to the first network standard, the user equipment communicates with the PCRF+PCF through the N7 interface, wherein the user equipment supports the third network standard.

In addition, as shown in FIG. 20 , a user equipment 2000 is provided, including: a transceiver 2020 and a processor 2010 .

A user equipment according to an embodiment of the present invention, the user equipment supports a first network standard, a second network standard, and a third network standard, as shown in FIG. 20 , includes: a transceiver 2020 and a processor 2010 .

The transceiver is configured to receive reattach indication information sent by the network device after the user equipment switches from the first network standard to the second network standard;

The processor is configured to perform reattachment according to the reattachment indication information.

Optionally, the transceiver is also used for:

receiving a tracking area update rejection message sent by the network device, wherein the reason indication information for the tracking area update rejection message is the re-attach indication information; or,

receiving a tracking area update success message sent by the network device, wherein the packet data protocol context status indication information of the tracking area update success message is the reattachment indication information; or

receiving a detachment message sent by the network device when the tracking area update is successful, where the detachment message is the reattachment indication information.

Optionally, the cause indication information indicates an EPS session management failure.

Optionally, the packet data protocol context status indication information indicates that no PDN connection is successfully migrated.

A user equipment according to another embodiment of the present invention, the user equipment supports a first network standard, a second network standard, and a third network standard, as shown in FIG. 20 , includes: a transceiver 2020 and a processor 2010 .

The transceiver is configured to receive a session management parameter sent by the network device after the user equipment switches from the first network standard to the second network standard, wherein the session management parameter includes the QoS parameter of the third network standard and/ or the packet data protocol context parameter of the first network standard.

Optionally, the transceiver is also used for:

Obtain the QoS parameters of the third network standard and/or the packet data protocol context parameters of the first network standard sent by the network device through the bearer modification process; or,

Acquire the QoS parameter of the third network standard and/or the packet data protocol context parameter of the first network standard sent by the network device through the tracking area update response message.

The transceiver is also used to:

Before receiving the session management parameter sent by the network device after the user equipment switches from the first network standard to the second network standard, the protocol data unit session identifier is reported.

The transceiver is further configured to send the protocol data unit session identifier through a bearer resource modification request process or a tracking area update process.

The transceiver is further configured to: after receiving the session management parameter sent by the network device after the user equipment switches from the first network standard to the second network standard, report the protocol data unit session identifier.

The transceiver is further configured to send the protocol data unit session identifier through a bearer modification procedure.

A user equipment according to another embodiment of the present invention, the user equipment supports a first network standard, a second network standard, and a third network standard, as shown in FIG. 20 , includes: a transceiver 2020 and a processor 2010 .

The transceiver is configured to receive session management parameters sent by a network device after the user equipment switches from a third network standard to a second network standard, wherein the session management parameters include QoS parameters of the third network standard and/or or the packet data protocol context parameter of the first network standard.

The transceiver is also used to:

Acquire the QoS parameters of the third network standard and/or the packet data protocol context parameters of the first network standard sent by the network device through the bearer modification process.

A user equipment according to another embodiment of the present invention, as shown in FIG. 20 , includes a transceiver 2020 and a processor 2010 .

The transceiver is configured to receive a session management parameter sent by the network device when the user equipment initially attaches to the second network standard, wherein the session management parameter includes the QoS parameter of the third network standard and/or the packet data protocol of the first network standard context parameter.

Optionally, the transceiver is further configured to: before or after the session management parameter sent by the receiving network device when the user equipment initially attaches to the second network standard, report the protocol data unit session identifier.

Optionally, the processor is also used for:

The packet data protocol context of the first network standard, the EPS context of the second network standard, and the protocol data unit session context of the third network standard are stored.

Optionally, the packet data protocol context of the first network standard includes the packet data protocol context parameter.

Optionally, the protocol data unit session context of the third network standard includes QoS parameters.

Optionally, the protocol data unit session identifier is allocated by the user equipment when the PDN connection is created.

In a communication device according to another embodiment of the present invention, as shown in FIG. 21, a processor 2100, a memory 2120, and a computer program stored in the memory 2120 and running on the processor 2100; the processor 2100 executes The computer program implements the above-mentioned mobility processing method.

The communication device also includes a transceiver 2110 for receiving and transmitting data under the control of the processor 2100 .

21, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 2100 and various circuits of memory represented by memory 2120 are linked together. The bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein. The bus interface provides the interface. Transceiver 2110 may be a number of elements, including a transmitter and a receiver, that provide means for communicating with various other devices over a transmission medium.

The processor 2100 is responsible for managing the bus architecture and general processing, and the memory 2120 may store data used by the processor 2100 when performing operations.

A computer-readable storage medium according to an embodiment of the present invention stores a computer program thereon, and when the computer program is executed by a processor, implements the steps in the above-mentioned mobility processing method, and can achieve the same technical effect, In order to avoid repetition, details are not repeated here. The computer-readable storage medium is, for example, a read-only memory (Read-Only Memory, ROM for short), a random access memory (Random Access Memory, RAM for short), a magnetic disk, or an optical disk.

It should be further noted that the user equipment described in this specification includes, but is not limited to, smart phones, tablet computers, etc., and many of the described functional components are referred to as modules to more particularly emphasize the independence of their implementations.

In this embodiment of the present invention, the modules may be implemented in software so as to be executed by various types of processors. For example, an identified executable code module may comprise one or more physical or logical blocks of computer instructions, which may be structured as objects, procedures, or functions, for example. Nonetheless, the executable code of the identified modules need not be physically located together, but may include different instructions stored in different bits that, when logically combined, constitute the module and implement the specifications of the module Purpose.

In practice, an executable code module may be a single instruction or many instructions, and may even be distributed over multiple different code segments, among different programs, and across multiple memory devices. Likewise, operational data may be identified within modules, and may be implemented in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed over different locations (including over different storage devices), and may exist at least in part only as electronic signals on a system or network.

When a module can be implemented by software, considering the level of the existing hardware technology, a module that can be implemented by software, without considering the cost, can build a corresponding hardware circuit to implement the corresponding function. The hardware circuits include conventional very large scale integration (VLSI) circuits or gate arrays as well as off-the-shelf semiconductors such as logic chips, transistors, or other discrete components. A module may also be implemented in programmable hardware devices, such as field programmable gate arrays, programmable array logic, programmable logic devices, and the like.

The above-described exemplary embodiments are described with reference to the drawings, many different forms and embodiments are possible without departing from the spirit and teachings of the present invention, and therefore the present invention should not be construed as the exemplary embodiments set forth herein limits. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and complete, and will convey the scope of the invention to those skilled in the art. In the drawings, component sizes and relative sizes may be exaggerated for clarity. The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will be further understood that the terms "comprising" and/or "comprising" when used in this specification denote the presence of stated features, integers, steps, operations, components and/or components, but do not exclude one or more other The presence or addition of features, integers, steps, operations, components, components and/or groups thereof. Unless otherwise indicated, when stated, a range of values includes the upper and lower limits of that range and any subranges therebetween.

The above are the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. It should be regarded as the protection scope of the present invention.

Claims (64)

1. A mobility processing method, applied to a network device, is characterized in that, comprising: After the user equipment switches from the first network standard to the second network standard, determining whether the user equipment supports the third network standard; In the case that the user equipment supports the third network standard, the user equipment is triggered to re-attach. 2. The method according to claim 1, wherein the determining whether the user equipment supports a third network standard comprises: acquiring network capability information of the user equipment; According to the network capability information, it is determined whether the user equipment supports the third network standard. 3. The method according to claim 2, wherein the determining whether the user equipment supports a third network standard according to the network capability information comprises: Whether the user equipment supports the third network standard is determined by the N1 mode support flag in the network capability information. 4. The method according to claim 2, wherein the triggering the user equipment to re-attach comprises: Sending re-attach indication information to the user equipment. 5. The method according to claim 4, wherein the sending reattachment indication information to the user equipment comprises: Sending a tracking area update rejection message to the user equipment, wherein the reason indication information for the tracking area update rejection message is the reattachment indication information. 6 . The method according to claim 5 , wherein the cause indication information indicates an Evolved Packet System EPS session management failure. 7 . 7. The method according to claim 4, wherein the sending reattachment indication information to the user equipment comprises: Sending a tracking area update success message to the user equipment, wherein the packet data protocol context status indication information of the tracking area update success message is the reattachment indication information. 8 . The method according to claim 7 , wherein the packet data protocol context status indication information indicates that no public data network PDN connection is successfully migrated. 9 . 9. The method according to claim 4, wherein the sending reattachment indication information to the user equipment comprises: In the case that the tracking area update is successful, a detach message is sent to the user equipment, wherein the detach message is the re-attach indication information. 10. A mobility processing method, applied to a user equipment, wherein the user equipment supports a first network standard, a second network standard and a third network standard, the method comprising: receiving reattachment indication information sent by the network device after the user equipment switches from the first network standard to the second network standard; Re-attach is performed according to the re-attach instruction information. 11 . The method according to claim 10 , wherein the receiving reattachment indication information sent by the network device after the user equipment switches from the first network standard to the second network standard comprises: 11 . receiving a tracking area update rejection message sent by the network device, wherein the reason indication information for the tracking area update rejection message is the re-attach indication information; or, receiving a tracking area update success message sent by the network device, wherein the packet data protocol context status indication information of the tracking area update success message is the reattachment indication information; or receiving a detachment message sent by the network device when the tracking area update is successful, where the detachment message is the reattachment indication information. 12. The method according to claim 11, wherein the cause indication information indicates an EPS session management failure. 13. The method according to claim 11, wherein the packet data protocol context status indication information indicates that no PDN connection is successfully migrated. 14. A mobility processing method, applied to a network device, characterized in that comprising: When the user equipment switches from the first network standard to the second network standard, and the user equipment supports the third network standard, sending session management parameters to the user equipment, wherein the session management parameters include the first network standard. The quality of service QoS parameters of the three network standards and/or the packet data protocol context parameters of the first network standard. 15. The method according to claim 14, wherein the sending session management parameters to the user equipment comprises: Send the QoS parameter of the third network standard and/or the packet data protocol context parameter of the first network standard to the user equipment through a bearer modification process; or, Send the QoS parameter of the third network standard and/or the packet data protocol context parameter of the first network standard to the user equipment through a tracking area update response message. 16. The method according to claim 14, wherein before the sending the session management parameter to the user equipment, the method further comprises: Obtain the session identifier of the protocol data unit reported by the user equipment. 17. The method according to claim 16, wherein the acquiring the session identifier of the protocol data unit reported by the user equipment comprises: The protocol data unit session identifier is acquired through a bearer resource modification request process or a tracking area update process. 18. The method according to claim 14, wherein after the sending the session management parameters to the user equipment, the method further comprises: Obtain the session identifier of the protocol data unit reported by the user equipment. 19. The method according to claim 18, wherein the acquiring the session identifier of the protocol data unit reported by the user equipment comprises: The protocol data unit session identifier is acquired through the bearer modification process. 20. The method according to claim 14, wherein before the sending the session management parameters to the user equipment, the method further comprises: If the user equipment corresponds to a PGW-C+SMF node, and the PGW-C+SMF node is selected by the serving GPRS support node SGSN according to the network capability information or user subscription information of the user equipment, determine the user The device supports the third network standard. 21. A mobility processing method, applied to a user equipment, wherein the user equipment supports a first network standard, a second network standard and a third network standard, the method comprising: Receive session management parameters sent by a network device after the user equipment switches from a first network standard to a second network standard, where the session management parameters include QoS parameters of the third network standard and/or the first network standard Standard packet data protocol context parameters. 22. The method according to claim 21, wherein the receiving session management parameters sent by the network device after the user equipment switches from the first network standard to the second network standard comprises: Obtain the QoS parameters of the third network standard and/or the packet data protocol context parameters of the first network standard sent by the network device through the bearer modification process; or, Acquire the QoS parameter of the third network standard and/or the packet data protocol context parameter of the first network standard sent by the network device through the tracking area update response message. 23. The method according to claim 21, wherein before the receiving the session management parameter sent by the network device after the user equipment switches from the first network standard to the second network standard, the method further comprises: Reports the session identifier of the protocol data unit. 24. The method according to claim 23, wherein the reporting of the protocol data unit session identifier comprises: The protocol data unit session identifier is sent through a bearer resource modification request process or a tracking area update process. 25. The method according to claim 21, wherein after the receiving the session management parameter sent by the network device after the user equipment switches from the first network standard to the second network standard, the method further comprises: Reports the session identifier of the protocol data unit. 26. The method according to claim 25, wherein the reporting protocol data unit session identifier comprises: The protocol data unit session identifier is sent through the bearer modification process. 27. A mobility processing method, applied to a network device, characterized by comprising: Obtain the network capability information or user subscription information of the user equipment; According to the network capability information or user subscription information, a PGW-C+SMF node is selected. 28. The method according to claim 27, wherein selecting a PGW-C+SMF node for the user equipment according to the network capability information comprises: Determine the PGW-C+SMF node corresponding to the user equipment according to the N1 mode support flag in the network capability information. 29. A mobility processing method, applied to a network device, characterized by comprising: When the user equipment switches from the third network standard to the second network standard, and the user equipment supports the first network standard, sending session management parameters to the user equipment, wherein the session management parameters include the first network standard. The QoS parameters of the three network standards and/or the packet data protocol context parameters of the first network standard. 30. The method according to claim 29, wherein the sending session management parameters to the user equipment comprises: Through the bearer modification process, the QoS parameters of the third network standard and/or the packet data protocol context parameters of the first network standard are sent to the user equipment. 31. A mobility processing method, applied to a user equipment, wherein the user equipment supports a first network standard, a second network standard and a third network standard, the method comprising: Receive session management parameters sent by a network device after the user equipment switches from a third network standard to a second network standard, where the session management parameters include QoS parameters of the third network standard and/or the first network standard Standard packet data protocol context parameters. 32. The method according to claim 31, wherein the receiving session management parameters sent by the network device after the user equipment switches from the third network standard to the first network standard comprises: Acquire the QoS parameters of the third network standard and/or the packet data protocol context parameters of the first network standard sent by the network device through the bearer modification process. 33. A mobility processing method, applied to a network device, characterized in that comprising: When the user equipment initially attaches to the second network standard, session management parameters are sent to the user equipment, wherein the session management parameters include QoS parameters of the third network standard and/or packet data protocol context parameters of the first network standard. 34. The method according to claim 33, wherein before or after the sending session management parameters to the user equipment, further comprising: Obtain the session identifier of the protocol data unit reported by the user equipment. 35. The method according to claim 33, wherein after the sending the session management parameters to the user equipment, the method further comprises: The packet data protocol context of the first network standard, the EPS context of the second network standard, and the protocol data unit session context of the third network standard are stored. 36. The method according to claim 35, wherein the packet data protocol context of the first network standard comprises the packet data protocol context parameter. 37. The method according to claim 35, wherein the protocol data unit session context of the third network standard comprises a QoS parameter. 38. The method of claim 35, further comprising: When the user equipment is switched from the second network standard to the first network standard, the user equipment communicates with the PCRF+PCF through the N7 interface, wherein the user equipment supports the third network standard. 39. A mobility processing method, applied to a user equipment, characterized by comprising: Receive session management parameters sent by the network device when the user equipment initially attaches to the second network standard, where the session management parameters include QoS parameters of the third network standard and/or packet data protocol context parameters of the first network standard. 40. The method according to claim 39, wherein before or after the receiving the session management parameter sent by the network device when the user equipment initially attaches to the second network standard, the method further comprises: Reports the session identifier of the protocol data unit. 41. The method according to claim 39, wherein after receiving the session management parameters sent by the network device when the user equipment initially attaches to the second network standard, the method further comprises: The packet data protocol context of the first network standard, the EPS context of the second network standard, and the protocol data unit session context of the third network standard are stored. 42. The method according to claim 41, wherein the packet data protocol context of the first network standard comprises the packet data protocol context parameter. 43. The method according to claim 41, wherein the protocol data unit session context of the third network standard comprises a QoS parameter. 44. The method according to claim 40, wherein the protocol data unit session identifier is allocated by the user equipment when a PDN connection is created. 45. A mobility processing apparatus, applied to network equipment, characterized in that it comprises: a first determining module, configured to determine whether the user equipment supports the third network standard after the user equipment is switched from the first network standard to the second network standard; The first processing module is configured to trigger the user equipment to re-attach when the user equipment supports a third network standard. 46. A mobility processing apparatus, applied to a user equipment, wherein the user equipment supports a first network standard, a second network standard and a third network standard, the apparatus comprising: a first receiving module, configured to receive reattachment indication information sent by the network device after the user equipment switches from the first network standard to the second network standard; The second processing module is configured to perform reattachment according to the reattachment instruction information. 47. A mobility processing apparatus, applied to a network device, characterized by comprising: a first sending module, configured to send session management parameters to the user equipment when the user equipment switches from the first network standard to the second network standard and the user equipment supports the third network standard, wherein the The session management parameters include the QoS parameters of the third network standard and/or the packet data protocol context parameters of the first network standard. 48. A mobility processing apparatus, applied to user equipment, wherein the user equipment supports a first network standard, a second network standard and a third network standard, the apparatus comprising: The second receiving module is configured to receive a session management parameter sent by the network device after the user equipment switches from the first network standard to the second network standard, wherein the session management parameter includes the QoS parameter of the third network standard and /or the packet data protocol context parameter of the first network standard. 49. A mobility processing apparatus, applied to a network device, characterized by comprising: an acquisition module, used to acquire network capability information or user subscription information of the user equipment; The selection module is configured to select a PGW-C+SMF node according to the network capability information or user subscription information. 50. A mobility processing apparatus, applied to network equipment, characterized in that it comprises: The second sending module is configured to send session management parameters to the user equipment when the user equipment switches from the third network standard to the second network standard and the user equipment supports the first network standard, wherein the The session management parameters include QoS parameters of the third network standard and/or packet data protocol context parameters of the first network standard. 51. A mobility processing apparatus, applied to user equipment, wherein the user equipment supports a first network standard, a second network standard and a third network standard, the apparatus comprising: A third receiving module, configured to receive a session management parameter sent by the network device after the user equipment switches from the third network standard to the second network standard, wherein the session management parameter includes the QoS parameter of the third network standard and /or the packet data protocol context parameter of the first network standard. 52. A mobility processing device, applied to network equipment, characterized in that it comprises: a third sending module, configured to send session management parameters to the user equipment when the user equipment initially attaches to the second network standard, wherein the user equipment supports the first network standard, the second network standard and the third network standard; The session management parameters include QoS parameters of the third network standard and/or packet data protocol context parameters of the first network standard. 53. A mobility processing device, applied to user equipment, characterized in that it comprises: a fourth receiving module, configured to receive a session management parameter sent by the network device when the user equipment initially attaches to the second network standard, wherein the user equipment supports the first network standard, the second network standard and the third network standard; the session The management parameters include QoS parameters of the third network standard and/or packet data protocol context parameters of the first network standard. 54. A network device, comprising: a transceiver and a processor; The processor is configured to determine whether the user equipment supports the third network standard after the user equipment is switched from the first network standard to the second network standard; In the case that the user equipment supports the third network standard, the user equipment is triggered to re-attach. 55. A user equipment, characterized in that the user equipment supports a first network standard, a second network standard and a third network standard, comprising: a transceiver and a processor; The transceiver is configured to receive reattach indication information sent by the network device after the user equipment switches from the first network standard to the second network standard; The processor is configured to perform reattachment according to the reattachment indication information. 56. A network device, comprising: a transceiver and a processor; The transceiver is configured to send session management parameters to the user equipment when the user equipment switches from the first network standard to the second network standard and the user equipment supports the third network standard, wherein the session The management parameters include quality of service QoS parameters of the third network standard and/or packet data protocol context parameters of the first network standard. 57. A user equipment, characterized in that the user equipment supports a first network standard, a second network standard and a third network standard, comprising: a transceiver and a processor; The transceiver is configured to receive a session management parameter sent by the network device after the user equipment switches from the first network standard to the second network standard, wherein the session management parameter includes the QoS parameter of the third network standard and/ or the packet data protocol context parameter of the first network standard. 58. A network device, comprising: a transceiver and a processor; The processor is configured to acquire network capability information or user subscription information of the user equipment; According to the network capability information or user subscription information, a PGW-C+SMF node is selected. 59. A network device, comprising: a transceiver and a processor; The transceiver is configured to send session management parameters to the user equipment when the user equipment switches from the third network standard to the second network standard and the user equipment supports the first network standard, wherein the session The management parameters include QoS parameters of the third network standard and/or packet data protocol context parameters of the first network standard. 60. A user equipment, characterized in that the user equipment supports a first network standard, a second network standard and a third network standard, comprising: a transceiver and a processor; The transceiver is configured to receive session management parameters sent by a network device after the user equipment switches from a third network standard to a second network standard, wherein the session management parameters include QoS parameters of the third network standard and/or or the packet data protocol context parameter of the first network standard. 61. A network device, comprising: a transceiver and a processor; The transceiver is configured to send session management parameters to the user equipment when the user equipment initially attaches to the second network standard, wherein the session management parameters include QoS parameters of the third network standard and/or QoS parameters of the first network standard. Packet data protocol context parameters. 62. A user equipment, comprising: a transceiver and a processor; The transceiver is configured to receive a session management parameter sent by the network device when the user equipment initially attaches to the second network standard, wherein the session management parameter includes the QoS parameter of the third network standard and/or the packet data protocol of the first network standard context parameter. 63. A communication device, comprising: a processor, a memory, and a computer program stored on the memory and executable on the processor; characterized in that, when the processor executes the computer program, The mobility processing method according to any one of claims 1-9, or the mobility processing method according to any one of claims 10-13, or the mobility processing method according to any one of claims 14-20 A processing method, or a mobility processing method as claimed in any one of claims 21-26, or a mobility processing method as claimed in claim 27 or 28, or a mobility processing method as claimed in claim 29 or 30 The mobility processing method, or the mobility processing method as claimed in claim 31 or 32, or the mobility processing method as claimed in any one of claims 33-38, or the mobility processing method as claimed in any one of claims 39-44 The described mobility processing method. 64. A computer-readable storage medium on which a computer program is stored, characterized in that, when the computer program is executed by a processor, the mobility processing method according to any one of claims 1-9 is implemented, or, The mobility processing method as claimed in any one of claims 10-13, or the mobility processing method as claimed in any one of claims 14-20, or the mobility processing method as claimed in any one of claims 21-26 Mobility processing method, alternatively, the mobility processing method as claimed in claim 27 or 28, alternatively, the mobility processing method as claimed in claim 29 or 30, alternatively, the mobility as claimed in claim 31 or 32 The processing method, or the mobility processing method according to any one of claims 33-38, or the steps in the mobility processing method according to any one of claims 39-44.

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