CN109587677B

CN109587677B - Recovery method of data radio bearer, terminal, base station and core network equipment

Info

Publication number: CN109587677B
Application number: CN201710906806.0A
Authority: CN
Inventors: 刘俊; 梁靖
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2017-09-29
Filing date: 2017-09-29
Publication date: 2020-10-30
Anticipated expiration: 2037-09-29
Also published as: CN109587677A; WO2019062392A1

Abstract

The invention provides a method for recovering a data radio bearer, a terminal, a base station and core network equipment, wherein the method comprises the following steps: determining that the terminal currently needs to selectively recover the data radio bearer; triggering a preset flow to control the release or suspension of the data radio bearer corresponding to the non-priority service; in the embodiment of the invention, when the terminal needs to selectively recover the data radio bearer, the terminal triggers the preset flow to control the release or suspension of the data radio bearer corresponding to the non-priority service, so that the data radio bearer which cannot be used or does not need to be used is prevented from being recovered, and the utilization efficiency of network resources is improved.

Description

Recovery method of data radio bearer, terminal, base station and core network equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method, a terminal, a base station, and a core network device for recovering a data radio bearer.

Background

Service area restrictions (Service area restrictions) are introduced in the 5G mobile communication system. Unified Data Management (UDM) incorporates the stored terminal service area restriction information into the subscription Data of the terminal. For different terminal UEs, the corresponding non-allowed region and allowed region are determined based on their subscription information. In the non-allowed area, only priority traffic such as emergency traffic and MPS is supported. The network may perform paging for a terminal in a non-allowed area to update the service area restriction of the terminal with a generic terminal configuration update procedure. The service area limitation may comprise one or more complete Tracking Areas (TAs). In addition, TA update is possible in the non-permitted area.

In the 5G mobile communication system, a non-allowed area (non-allowed area) and an allowed area (allowed area) thereof may be determined based on subscription information of different terminals UE. When a terminal in an RRC _ INACTIVE state moves from its allowed area to an unallowed area, since the unallowed area only allows the terminal to transmit and receive Priority traffic such as emergency traffic and MPS (Multimedia Priority Service), the terminal in the RRC _ INACTIVE state will recover all suspended data radio bearers during RRC connection recovery triggered by arrival of the Priority traffic, so that part of the Data Radio Bearers (DRBs) recovered by the terminal cannot be used, and network resources are wasted.

Disclosure of Invention

The invention aims to provide a method, a terminal, a base station and core network equipment for recovering a data radio bearer, so as to solve the problem of resource waste caused by recovering all suspended data radio bearers in the RRC connection recovery process in the prior art.

In order to solve the above problem, an embodiment of the present invention provides a method for recovering a data radio bearer, which is applied to a terminal, and includes:

determining that the terminal currently needs to selectively recover the data radio bearer;

and triggering a preset flow to control the release or suspension of the data radio bearer corresponding to the non-priority service.

Wherein, the step of determining that the terminal currently needs to selectively recover the data radio bearer comprises:

when a terminal in an inactive state moves to an unallowable area, it is determined that the terminal currently needs to selectively recover a data radio bearer.

Wherein, the step of triggering the preset flow control to release the data radio bearer corresponding to the non-priority service includes:

triggering a registration area updating process so that a core network can know that the terminal moves to a non-allowed area;

and releasing the data radio bearer corresponding to the non-priority service by utilizing the registration area updating process.

Wherein the step of releasing the data radio bearer corresponding to the non-priority service by using the registration area update process includes:

sending a registration request message to a core network, wherein the registration request message carries first indication information indicating that the core network deactivates or releases a protocol data unit session corresponding to a non-priority service, so that the core network deactivates or releases the protocol data unit session corresponding to the non-priority service.

sending a registration request message to a core network;

receiving a registration acceptance message fed back by a core network, wherein the registration acceptance message carries second indication information for indicating the terminal to deactivate or release a protocol data unit session corresponding to a non-priority service;

and deactivating or releasing the protocol data unit session corresponding to the non-priority service according to the second indication information, thereby releasing the data radio bearer corresponding to the non-priority service.

triggering a Radio Access Network (RAN) to inform an area updating process so that a core network can know that the terminal moves to a non-allowed area;

and the RAN is used for informing the area updating process to release the data radio bearer corresponding to the non-priority service.

Wherein, the step of releasing the data radio bearer corresponding to the non-priority service by using the RAN notification area update procedure includes:

transmitting a Radio Resource Control (RRC) recovery request message to a base station;

receiving an RRC recovery message sent by a base station; wherein, the RRC recovery message indicates all the suspended data radio bearer sets except the data radio bearer set corresponding to the QoS flow set of the priority service;

and releasing the data radio bearer set indicated in the RRC recovery message according to the indication of the RRC recovery message, and recovering the remaining suspended data radio bearer set.

after a terminal in an inactive state moves to an unallowed area, when a priority service arrives, determining that the terminal currently needs to selectively recover a data radio bearer;

the step of triggering the preset flow to control the release or suspension of the data radio bearer corresponding to the non-priority service includes:

receiving an RRC recovery message sent by a base station; wherein, the RRC recovery message indicates all the suspended data radio bearer sets except the data radio bearer set corresponding to the QoS flow set of the priority service; according to the indication of the RRC recovery message, releasing the data radio bearer set indicated in the RRC recovery message, and recovering the remaining suspended data radio bearer set;

or, the RRC recovery message indicates a data radio bearer set corresponding to a QoS flow set of a priority service; and according to the indication of the RRC recovery message, recovering the data radio bearer set indicated in the RRC recovery message, and keeping other suspended data radio bearer sets suspended.

Wherein the step of sending a radio resource control RRC recovery request message to the base station includes:

the upper layer of the terminal determines that a priority service arrives, maps the arrived priority service to a corresponding QoS flow set, and informs the access layer of the terminal of the QoS flow set;

the access layer of the terminal maps the QoS flow set of the priority service to the corresponding data radio bearer set and sends an RRC recovery request message to the base station; the RRC recovery request message indicates a data radio bearer set corresponding to the QoS flow set of the priority service; or, the access layer of the terminal sends an RRC recovery request message to the base station, where the RRC recovery request message indicates the QoS flow set of the priority service, and the base station maps the QoS flow set of the priority service to the corresponding data radio bearer set.

receiving a paging message sent by a core network, wherein the paging message is sent when the core network determines that a priority service arrives;

and sending a Radio Resource Control (RRC) recovery request message to the base station.

Wherein the recovery method further comprises:

and receiving the broadcast information of the cell, comparing the broadcast information with the service area limit information stored by the terminal, and determining that the terminal moves to a non-allowed area.

triggering a special flow to inform a core network that the terminal moves to a non-allowed area; and the core network initiates the deactivation or release process of the protocol data unit session corresponding to the non-priority service to release the data radio bearer corresponding to the non-priority service.

and initiating a deactivation or release process of the protocol data unit session corresponding to the non-priority service, and releasing the data radio bearer corresponding to the non-priority service.

The embodiment of the invention also provides a method for recovering the data radio bearer, which is applied to a base station and comprises the following steps:

the base station determines that the terminal needs to selectively recover the data radio bearer currently;

and controlling the data radio bearer corresponding to the non-priority service to be released or suspended according to the first target flow.

Wherein, the step that the base station determines that the terminal needs to selectively recover the data radio bearer currently comprises the following steps:

receiving a Radio Resource Control (RRC) recovery request message sent by a terminal, and acquiring allowed region information and/or non-allowed region information of the terminal;

and when determining that the terminal in the non-active state moves from the allowed area to the non-allowed area according to the allowed area information and/or the non-allowed area information, determining that the terminal currently needs to selectively recover the data radio bearer.

Wherein, the step of controlling the release of the data radio bearer corresponding to the non-priority service according to the first target flow comprises:

and informing the area updating process by using the radio access network RAN that the data radio bearer corresponding to the non-priority service is released.

Wherein, the step of notifying the area update process by using the RAN to release the data radio bearer corresponding to the non-priority service includes:

and informing a core network that the terminal moves to a non-allowed area, so that the core network initiates a deactivation or release process of a protocol data unit session corresponding to a non-priority service to release a data radio bearer corresponding to the non-priority service.

requesting a core network to release or deactivate a quality of service (QoS) flow of a non-priority service;

and receiving a feedback message sent after the core network releases or deactivates the QoS (quality of service) flow of the non-priority service, and releasing the data radio bearer corresponding to the QoS flow of the non-priority service according to the feedback message.

acquiring identification information of a quality of service (QoS) flow of a priority service;

sending an RRC recovery message to the terminal; and releasing the data radio bearer set indicated in the RRC recovery message by the terminal and recovering the remaining suspended data radio bearer sets except the data radio bearers corresponding to the QoS (quality of service) flows indicating the priority service in the RRC recovery message.

Wherein, the step of controlling the release or suspension of the data radio bearer corresponding to the non-priority service according to the first target flow program comprises:

receiving a Radio Resource Control (RRC) recovery request message sent by a terminal;

sending an RRC recovery message to a terminal, wherein the RRC recovery message indicates all suspended data radio bearer sets except a data radio bearer set corresponding to a service quality QoS flow set of a priority service; releasing, by the terminal, the data radio bearer set indicated in the RRC recovery message according to the indication of the RRC recovery message, and recovering the remaining suspended data radio bearer set;

or, the terminal recovers the data radio bearer set indicated in the RRC recovery message, and other suspended data radio bearer sets remain suspended.

Wherein, the RRC recovery request message indicates a data radio bearer set corresponding to the QoS flow set of the priority service;

or, the RRC restoration request message indicates the QoS flow set of the priority service, and the base station maps the QoS flow set of the priority service to a corresponding data radio bearer set.

Before receiving a radio resource control RRC recovery request message sent by a terminal, the method further includes:

receiving indication information sent by a core network after determining that a priority service arrives, wherein the indication information is used for indicating that the base station has the priority service to arrive; the indication information also indicates the service quality QoS flow set of the priority service;

and mapping the QoS flow set of the priority service to a corresponding data radio bearer set.

The embodiment of the invention also provides a method for recovering the data radio bearer, which is applied to a core network and comprises the following steps:

the core network determines that the terminal needs to selectively recover the data radio bearer currently;

and controlling the data radio bearer corresponding to the priority service to be released or suspended based on the second target process.

Wherein, the step of the core network determining that the terminal needs to selectively recover the data radio bearer currently comprises:

determining that the terminal moves to a non-allowed area according to the updating process of the registration area, and determining that the terminal needs to selectively recover the data radio bearer currently;

the step of controlling the release of the data radio bearer corresponding to the priority service based on the second target process includes:

receiving a registration request message sent by a terminal, wherein the registration request message carries first indication information indicating that the core network deactivates or releases a protocol data unit session corresponding to a non-priority service;

and deactivating or releasing the protocol data unit session corresponding to the non-priority service according to the first indication information, thereby releasing the data radio bearer corresponding to the non-priority service.

receiving a registration request message sent by a terminal;

sending a registration receiving message to a terminal, wherein the registration receiving message carries second indication information for indicating the terminal to deactivate or release a protocol data unit session corresponding to a non-priority service; and the terminal deactivates or releases the protocol data unit session corresponding to the non-priority service.

determining that the terminal moves to a non-allowed area according to a radio access network RAN notification area updating process, and determining that the terminal currently needs to selectively recover data radio bearer;

the step of controlling the release or suspension of the data radio bearer corresponding to the priority service based on the second target process includes:

Wherein, the step of releasing the data radio bearer corresponding to the non-priority service according to the RAN notification area update procedure includes:

and receiving the notification of the base station to determine that the terminal moves to a non-allowed area, initiating a deactivation or release process of the protocol data unit session corresponding to the non-priority service, and releasing the data radio bearer corresponding to the non-priority service.

receiving a request of a base station, wherein the request is used for requesting the core network to release or deactivate a quality of service (QoS) flow of a non-priority service;

and initiating a process of releasing or deactivating the QoS flow of the non-priority service according to the request, and releasing the data radio bearer corresponding to the non-priority service.

Wherein the step of controlling the release or suspension of the data radio bearer corresponding to the priority service based on the second target process includes:

determining that a priority service arrives, mapping the priority service to a corresponding QoS flow set, sending a paging message to a terminal, and sending a Radio Resource Control (RRC) recovery request message to a base station by the terminal according to the paging message;

sending indication information to a base station, wherein the indication information is used for indicating that the base station has a priority service arrival; the indication information also indicates a QoS flow set of a priority service, and the QoS flow set of the priority service is mapped to a corresponding data radio bearer set by the base station.

determining that the terminal moves to a non-allowed area by utilizing a special flow initiated by the terminal, and determining that the terminal needs to selectively recover the data radio bearer currently;

and initiating a deactivation or release process of the protocol data unit session corresponding to the non-priority service to release the data radio bearer corresponding to the non-priority service according to the special flow.

An embodiment of the present invention further provides a terminal, including: a transceiver, a memory, a processor and a computer program stored on the memory and executable on the processor, the processor being configured to read a program in the memory and perform the following processes:

determining that the data radio bearer needs to be selectively recovered currently;

Wherein the processor is further configured to: when a terminal in an inactive state moves to an unallowable area, it is determined that the terminal currently needs to selectively recover a data radio bearer.

Wherein the processor is further configured to: triggering a registration area updating process so that a core network can know that the terminal moves to a non-allowed area;

Wherein the processor is further configured to: sending a registration request message to a core network, wherein the registration request message carries first indication information indicating that the core network deactivates or releases a protocol data unit session corresponding to a non-priority service, so that the core network deactivates or releases the protocol data unit session corresponding to the non-priority service.

Wherein the transceiver is to: sending a registration request message to a core network;

the processor is further configured to: and deactivating or releasing the protocol data unit session corresponding to the non-priority service according to the second indication information, thereby releasing the data radio bearer corresponding to the non-priority service.

Wherein the processor is further configured to: triggering a Radio Access Network (RAN) to inform an area updating process so that a core network can know that the terminal moves to a non-allowed area;

Wherein the transceiver is further configured to: transmitting a Radio Resource Control (RRC) recovery request message to a base station;

the processor is further configured to: and releasing the data radio bearer set indicated in the RRC recovery message according to the indication of the RRC recovery message, and recovering the remaining suspended data radio bearer set.

Wherein the processor is further configured to: after a terminal in an inactive state moves to an unallowed area, when a priority service arrives, determining that the terminal currently needs to selectively recover a data radio bearer;

the transceiver is further configured to: transmitting a Radio Resource Control (RRC) recovery request message to a base station;

Wherein the processor is further configured to: the upper layer of the terminal determines that a priority service arrives, maps the arrived priority service to a corresponding QoS flow set, and informs the access layer of the terminal of the QoS flow set;

the access layer of the terminal maps the QoS flow set of the priority service to the corresponding data radio bearer set;

the transceiver is further configured to: sending an RRC recovery request message to a base station; the RRC recovery request message indicates a data radio bearer set corresponding to the QoS flow set of the priority service; or, the access layer of the terminal sends an RRC recovery request message to the base station, where the RRC recovery request message indicates the QoS flow set of the priority service, and the base station maps the QoS flow set of the priority service to the corresponding data radio bearer set.

Wherein the transceiver is further configured to: receiving a paging message sent by a core network, wherein the paging message is sent when the core network determines that a priority service arrives;

Wherein the transceiver is further configured to: receiving broadcast information of a cell; the processor is further configured to: and comparing the broadcast information with the service area limit information stored by the terminal to determine that the terminal moves to a non-allowed area.

Wherein the processor is further configured to: triggering a special flow to inform a core network that the terminal moves to a non-allowed area; and the core network initiates the deactivation or release process of the protocol data unit session corresponding to the non-priority service to release the data radio bearer corresponding to the non-priority service.

Wherein the processor is further configured to: and initiating a deactivation or release process of the protocol data unit session corresponding to the non-priority service, and releasing the data radio bearer corresponding to the non-priority service.

The embodiment of the invention also provides a device for recovering the data radio bearer, which is applied to a terminal and comprises the following components:

a first determining module, configured to determine that a selective recovery of a data radio bearer is currently required;

and the first processing module is used for triggering the preset flow to control the release or suspension of the data radio bearer corresponding to the non-priority service.

An embodiment of the present invention further provides a base station, including: a transceiver, a memory, a processor and a computer program stored on the memory and executable on the processor, the processor being configured to read a program in the memory and perform the following processes:

determining that the terminal needs to selectively recover the data radio bearer currently;

Wherein the transceiver is to: receiving a Radio Resource Control (RRC) recovery request message sent by a terminal;

the processor is further configured to: acquiring allowed area information and/or non-allowed area information of the terminal;

Wherein the processor is further configured to: and informing the area updating process by using the radio access network RAN that the data radio bearer corresponding to the non-priority service is released.

Wherein the transceiver is further configured to:

Wherein the transceiver is further configured to: requesting a core network to release or deactivate a quality of service (QoS) flow of a non-priority service;

receiving a feedback message sent by a core network after releasing or deactivating a QoS (quality of service) flow of a non-priority service;

the processor is further configured to: and releasing the data radio bearer corresponding to the QoS flow of the non-priority service according to the feedback message.

Wherein the processor is further configured to: acquiring identification information of a quality of service (QoS) flow of a priority service;

the transceiver is further configured to: sending an RRC recovery message to the terminal; and releasing the data radio bearer set indicated in the RRC recovery message by the terminal and recovering the remaining suspended data radio bearer sets except the data radio bearers corresponding to the QoS (quality of service) flows indicating the priority service in the RRC recovery message.

Wherein the transceiver is further configured to: receiving a Radio Resource Control (RRC) recovery request message sent by a terminal;

or, the RRC restoration request message indicates a QoS flow set of the priority service, and the processor is further configured to: and mapping the QoS flow set of the priority service to a corresponding data radio bearer set.

Wherein the transceiver is further configured to: receiving indication information sent by a core network after determining that a priority service arrives, wherein the indication information is used for indicating that the base station has the priority service to arrive; the indication information also indicates the service quality QoS flow set of the priority service;

the processor is further configured to: and mapping the QoS flow set of the priority service to a corresponding data radio bearer set.

The embodiment of the invention also provides a recovery device of the data radio bearer, which is applied to a base station and comprises the following steps:

a second determining module, configured to determine that the terminal currently needs to selectively recover the data radio bearer;

and the second processing module is used for controlling the data radio bearer corresponding to the non-priority service to be released or suspended according to the first target flow program.

An embodiment of the present invention further provides a core network device, including: a transceiver, a memory, a processor and a computer program stored on the memory and executable on the processor, the processor being configured to read a program in the memory and perform the following processes:

Wherein the processor is further configured to: determining that the terminal moves to a non-allowed area according to the updating process of the registration area, and determining that the terminal needs to selectively recover the data radio bearer currently;

Wherein the transceiver is further configured to: receiving a registration request message sent by a terminal, wherein the registration request message carries first indication information indicating that the core network deactivates or releases a protocol data unit session corresponding to a non-priority service;

the processor is further configured to: and deactivating or releasing the protocol data unit session corresponding to the non-priority service according to the first indication information, thereby releasing the data radio bearer corresponding to the non-priority service.

Wherein the transceiver is further configured to: receiving a registration request message sent by a terminal;

Wherein the processor is further configured to: determining that the terminal moves to a non-allowed area according to a radio access network RAN notification area updating process, and determining that the terminal currently needs to selectively recover data radio bearer;

Wherein the transceiver is further configured to: receiving a notification of a base station to determine that the terminal moves to a non-allowed area;

the processor is further configured to: and initiating a deactivation or release process of the protocol data unit session corresponding to the non-priority service, and releasing the data radio bearer corresponding to the non-priority service.

Wherein the transceiver is further configured to: receiving a request of a base station, wherein the request is used for requesting the core network to release or deactivate a quality of service (QoS) flow of a non-priority service;

the processor is further configured to: and initiating a process of releasing or deactivating the QoS flow of the non-priority service according to the request, and releasing the data radio bearer corresponding to the non-priority service.

Wherein the processor is further configured to: determining that a priority service arrives, mapping the priority service to a corresponding QoS flow set, sending a paging message to a terminal, and sending a Radio Resource Control (RRC) recovery request message to a base station by the terminal according to the paging message;

the transceiver is further configured to: sending indication information to a base station, wherein the indication information is used for indicating that the base station has a priority service arrival; the indication information also indicates a QoS flow set of a priority service, and the QoS flow set of the priority service is mapped to a corresponding data radio bearer set by the base station.

Wherein the processor is further configured to: determining that the terminal moves to a non-allowed area by using a special process initiated by the terminal, and determining that the terminal currently needs to selectively recover data radio bearer;

The embodiment of the present invention further provides a device for recovering a data radio bearer, which is applied to a core network, and includes:

a third determining module, configured to determine that the terminal currently needs to selectively recover the data radio bearer;

and the third processing module is used for controlling the release or suspension of the data radio bearer corresponding to the priority service based on the second target process.

An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the method for recovering a data radio bearer applied to a terminal as described above; alternatively, the first and second electrodes may be,

the program when executed by a processor implements the steps in the method for recovery of a data radio bearer applied to a base station as described above; alternatively, the first and second electrodes may be,

which when executed by a processor implements the steps in the method for recovery of a data radio bearer applied to a core network as described above.

The technical scheme of the invention at least has the following beneficial effects:

in the method for restoring a data radio bearer, the terminal, the base station and the core network device of the embodiment of the invention, when the terminal needs to selectively restore the data radio bearer, the terminal triggers the preset flow to control the release or suspension of the data radio bearer corresponding to the non-priority service, so that the data radio bearer which cannot be used or does not need to be used is prevented from being restored, and the utilization efficiency of network resources is improved.

Drawings

Fig. 1 is a flowchart illustrating steps of a method for recovering a data radio bearer according to an embodiment of the present invention;

fig. 2 is a flowchart illustrating a second step of a method for recovering a data radio bearer according to an embodiment of the present invention;

fig. 3 is a flowchart illustrating a third step of a method for recovering a data radio bearer according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a data radio bearer recovery apparatus according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a base station according to an embodiment of the present invention;

fig. 7 is a second schematic structural diagram of a data radio bearer recovery apparatus according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a core network device according to an embodiment of the present invention;

fig. 9 is a third schematic structural diagram of an apparatus for recovering a data radio bearer according to an embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, an embodiment of the present invention provides a method for recovering a data radio bearer, which is applied to a terminal, and includes:

and step 11, determining that the terminal currently needs to selectively recover the data radio bearer.

In this step, the method for judging whether the terminal needs to selectively recover the data radio bearer currently may be to judge whether the terminal moves from an allowed area to a non-allowed area; the terminal may also move from a certain scenario to another scenario, and the scenario to which the terminal moves only needs to use a partial data radio bearer or a partial data radio bearer exists and cannot be used, which is not specifically limited herein.

And step 12, triggering the preset flow to control the release or suspension of the data radio bearer corresponding to the non-priority service.

In the above embodiment of the present invention, to avoid that the data radio bearer DRB that cannot be used is recovered, in the embodiment of the present invention, after determining that the terminal needs to selectively recover the data radio bearer currently, a preset flow is triggered to control the data radio bearer corresponding to the non-priority service to be released or suspended. And the data radio bearer corresponding to the non-priority service is a data radio bearer which cannot be used or does not need to be used by the terminal currently.

Further, in the foregoing embodiment of the present invention, step 11 includes:

Accordingly, step 12 comprises:

Preferably, the step of releasing the data radio bearer corresponding to the non-priority service by using the registration area update procedure includes:

sending a registration request message to a core network, wherein the registration request message carries first indication information indicating that the core network deactivates or releases a protocol data unit session (PDU session) corresponding to a non-priority service, so that the core network deactivates or releases the PDU session corresponding to the non-priority service.

Or, the step of releasing the data radio bearer corresponding to the non-priority service by using the registration area update process includes:

sending a registration request message to a core network;

For example, example 1: triggering the updating of the registration area when the terminal enters the non-allowed area: the core network initiates the deactivation or release protocol data unit session (PDU session)

The specific process is as follows:

when a terminal in an INACTIVE (RRC _ INACTIVE) state moves from an allowed area to an unallowed area, triggering a registration area updating process;

indicating PDU session to be deactivated or released by a core network in a Registration Request (Registration Request) message sent by a terminal, wherein the PDU session corresponds to a non-priority service; after receiving the registration request message, the access and mobility management function (AMF) of the core network notifies the Session Management Function (SMF), and the SMF decides to initiate a corresponding PDU session deactivation or release process. Wherein, the PDU session deactivation process only releases the DRB corresponding to the PDU session, and the PDU session release process releases all network resources (including the DRB) corresponding to the PDU session.

Preferably, step 12 in the above embodiment of the present invention includes:

Specifically, the step of using the RAN to notify the area update process to release the data radio bearer corresponding to the non-priority service includes:

In summary, in the above embodiments of the present invention, how the base station knows the QoS flow set of the priority service, or how the base station knows the data radio bearer set corresponding to the QoS flow set of the priority service, is described in detail in the following method for recovering the data radio bearer on the base station side, which is not limited specifically herein.

Further, in the foregoing embodiment of the present invention, the recovery method further includes:

Specifically, in the embodiment of the present invention, step 12 includes:

Or step 12 comprises:

To sum up, in the method for recovering a data radio bearer provided in the embodiment of the present invention, the core network or the base station is made to know that the terminal moves to the non-allowed area by triggering the registration area update procedure or the RAN notification area update procedure or the dedicated procedure, and the data radio bearer corresponding to the non-priority service is released based on the preset procedure, so that the data radio bearer that cannot be used or does not need to be used is prevented from being recovered in the non-allowed area, and thus, the network resource utilization efficiency is improved.

Further, the embodiment of the present invention further provides a method for recovering a data radio bearer, where when the mobile terminal moves to a non-allowed area, no operation is performed, and when a priority service arrives thereafter, a data radio bearer DRB corresponding to the non-priority service is released or suspended based on a QoS flow set corresponding to the priority service.

Specifically, in the above embodiment of the present invention, step 11:

the corresponding step 12 comprises:

Alternatively, the step of sending the RRC recovery request message to the base station includes:

Specifically, the method can only recover the data radio bearer corresponding to the priority service when the terminal moves to the non-allowed area and the subsequent priority service arrives, but the data radio bearer corresponding to the non-priority service is released or suspended, so that the data radio bearer which cannot be used is prevented from being recovered in the non-allowed area, and the utilization rate of network resources is improved.

As shown in fig. 2, an embodiment of the present invention further provides a method for recovering a data radio bearer, which is applied to a base station, and includes:

step 21, the base station determines that the terminal currently needs to selectively recover the data radio bearer.

And step 22, controlling the data radio bearer corresponding to the non-priority service to be released or suspended according to the first target flow.

In the above embodiment of the present invention, in order to avoid that the data radio bearer DRB that cannot be used is recovered, after determining that the terminal needs to selectively recover the data radio bearer currently, the embodiment of the present invention controls the data radio bearer corresponding to the non-priority service to be released or suspended according to the related procedure. And the data radio bearer corresponding to the non-priority service is a data radio bearer which cannot be used or does not need to be used by the terminal currently.

It should be noted that the method for recovering a data radio bearer applied to a base station side according to the embodiment of the present invention is a method corresponding to the above method for recovering a data radio bearer applied to a terminal side, and therefore, the same contents in part are not repeatedly described in this embodiment.

Further, step 21 in the above embodiment of the present invention includes:

receiving a Radio Resource Control (RRC) recovery request message sent by a terminal, and acquiring allowed region information and/or non-allowed region information of the terminal; the new base station (i.e., the base station where the terminal currently resides or accesses) may know the allowed area information and/or the non-allowed area information of the terminal from the anchor base station (i.e., the base station where the terminal previously resided or accessed).

Accordingly, step 22 in the above embodiment of the present invention includes:

Specifically, the step of notifying the area update process by using the RAN to release the data radio bearer corresponding to the non-priority service includes:

Or, the step of notifying, by the RAN, that the data radio bearer corresponding to the area update procedure is released includes:

For example, example 2: when the terminal enters the non-allowed area, a radio access network RAN notification area updating process (RNA updating process for short) is triggered, and the RAN notifies a core network that the terminal enters the non-allowed area.

The specific process is as follows:

when the terminal in the non-active (RRC _ INACTIVE) state moves from the allowed region to the non-allowed region, triggering an RNA updating process, and not triggering a tracking region updating TAU process;

in the RNA updating process, an anchor base station (a base station where the terminal originally resides or accesses) transmits allowed region information and/or non-allowed region information of the terminal to a new base station through a context retrieval (context retrieval) message;

the new base station judges that the terminal moves to the non-allowed area according to the acquired allowed area information and/or the non-allowed area information of the terminal, and informs the core network that the terminal moves to the non-allowed area; after the core network knows, initiating a PDU session deactivation or release process corresponding to the non-priority service, and releasing a DRB corresponding to the PDU session.

Example 3: when the terminal enters a non-allowed area, a Radio Access Network (RAN) is triggered to notify an area updating process (RNA updating process for short), and the RAN requests a core network to release or deactivate quality of service (QoS flow).

The specific process is as follows:

in the process of updating RNA, a core network sends QoS flow identification information corresponding to a priority service to an anchor base station (a base station where a terminal originally resides or is accessed), and the anchor base station transmits the information, an allowed region and a non-allowed region of the terminal to a new base station through a context retrieval (context retrieval) message;

the new base station requests a core network to release or deactivate the QoS flow of the non-priority service when judging that the terminal moves to the non-allowed area according to the acquired allowed area information and/or the non-allowed area information of the terminal; after receiving the request, the core network releases or deactivates the QoS flow of the non-priority service and feeds back the QoS flow to the new base station; and after receiving the feedback, the new base station releases the DRB corresponding to the QoS flow of the non-priority service.

Example 4: when the terminal enters a non-allowed area, the terminal triggers a radio access network RAN to inform an area updating process (RNA updating process for short), and the RAN releases the DRB by itself.

The specific process is as follows:

when the new base station judges that the terminal moves to the non-allowed area according to the acquired allowed area information and/or the non-allowed area information of the terminal, setting DRB-ToRelease List (which is an IE indicating a DRB List needing to be released) in an RRC recovery message fed back to the terminal as all suspended DRB sets except the DRB set corresponding to the QoS flow set of the prior service;

and when the terminal receives the RRC recovery message, releasing the DRB set indicated by the DRB-ToReleaseList, and recovering the residual suspended DRB set.

Specifically, step 22 includes:

Wherein, the RRC recovery request message indicates a data radio bearer set corresponding to the QoS flow set of the priority service; or, the RRC restoration request message indicates the QoS flow set of the priority service, and the base station maps the QoS flow set of the priority service to a corresponding data radio bearer set.

Or, before receiving a radio resource control RRC recovery request message sent by a terminal, the method further includes:

As shown in fig. 3, an embodiment of the present invention further provides a method for recovering a data radio bearer, which is applied to a core network, and includes:

step 31, the core network determines that the terminal currently needs to selectively recover the data radio bearer.

In this step, the method for judging whether the terminal needs to selectively recover the data radio bearer currently may be to judge whether the terminal moves from an allowed area to a non-allowed area; it is also possible that the terminal moves from a certain scenario to another scenario, and the scenario to which the terminal moves only needs to use a partial data radio bearer or a partial data radio bearer exists and cannot be used, which is not specifically limited herein.

And step 32, controlling the data radio bearer corresponding to the priority service to be released or suspended based on the second target process.

It should be noted that the method for recovering a data radio bearer applied to a core network side according to the embodiment of the present invention is a method corresponding to the above-mentioned method for recovering a data radio bearer applied to a terminal side and the method for recovering a data radio bearer applied to a base station side, and therefore, the same contents in part are not repeated in this embodiment.

In one aspect, step 31 in the above embodiment of the present invention includes:

accordingly, step 32 includes:

Specifically, the step of releasing the data radio bearer corresponding to the non-priority service by using the registration area update process includes:

receiving a registration request message sent by a terminal;

On the other hand, step 31 in the above embodiment of the present invention includes:

accordingly, step 32 includes:

Preferably, the step of releasing the data radio bearer corresponding to the non-priority service according to the RAN notification area update procedure includes:

Or the step of releasing the data radio bearer corresponding to the non-priority service according to the RAN notification area update procedure includes:

In yet another aspect, step 32 in the above embodiments of the present invention comprises:

determining that a priority service arrives, mapping the priority service to a corresponding QoS flow set, sending a paging message to a terminal, and sending a Radio Resource Control (RRC) recovery request message to a base station by the terminal according to the paging message; the priority service arrival determined by the core network specifically refers to downlink priority service arrival.

For example, example 5: the RAN selectively recovers the DRB based on the assistance information when the priority traffic arrives.

When knowing that the terminal in the INACTIVE (RRC _ INACTIVE) state moves to the non-allowed area, the terminal does not operate, and when a priority service arrives thereafter, the RAN releases or suspends the DRB corresponding to the non-priority service according to the QoS flow information corresponding to the non-priority service or the priority service.

The specific process when the uplink priority service arrives is as follows:

judging the arrival service as a priority service by a non-access stratum (NAS) of the terminal, mapping the service to a corresponding QoSflow set,

the terminal NAS indicates that uplink priority service arrives to an Access Stratum (AS) of the terminal by using ARP priority level (ARP priority level) information in the QoS parameters of the QoS flow set or other modes;

the terminal AS maps the QoS flow set to a corresponding DRB set and indicates the DRB set in an RRC recovery request message sent to the base station;

the base station side sets DRB-ToReleaseList (which is an IE indicating a DRB list needing to be released) in the fed back RRC recovery message as all the suspended DRB sets except the received DRB set, and the terminal releases the DRB set indicated by the DRB-ToReleaseList after receiving the RRC recovery message and recovers the residual suspended DRB sets;

or, the base station side adds the DRB list to the radio Resource configuration determined (which is also an IE indicating the DRB list that needs to be restored) of the RRC resume message, and after receiving the RRC resume message, the terminal resumes only the DRB set indicated by the DRB list, while the other suspended DRB sets remain suspended.

It should be noted that, in the above procedure, the terminal may also indicate the QoS flow set corresponding to the priority service to the base station through the RRC recovery request message, and the base station maps the QoS flow set to the corresponding DRB set.

The specific process when the downlink priority service arrives is as follows:

the core network judges the arrival service as a priority service, maps the service to a corresponding QoS flow set and simultaneously initiates paging to the terminal;

the core network indicates that the base station has a downlink priority service arrival by using ARP priority level information in the QoS parameters of the QoS flow set or other modes, and simultaneously sends a QoS flow ID list of the base station to the base station; the base station maps the QoS flow set to a corresponding DRB set;

after receiving the paging message, the terminal sends an RRC recovery request message to the base station;

the base station sets DRB-ToReleaseList (which is an IE indicating a DRB list needing to be released) as all the suspended DRB lists except the DRB set list in the RRC recovery message fed back to the terminal, and the terminal releases the DRB set indicated by the DRB-ToReleaseList after receiving the RRC recovery message and recovers the residual suspended DRB sets;

or, the base station adds the DRB list to a radio Resource configuration determined (which is also an IE indicating a DRB list that needs to be resumed) of the RRC resume message, and after receiving the RRC resume message, the terminal resumes only the DRB set indicated by the DRB list, while the other suspended DRB sets remain suspended.

In another aspect, in an embodiment of the present invention, step 31 includes:

accordingly, step 32 includes:

To sum up, in the method for recovering a data radio bearer according to the embodiment of the present invention, the core network or the base station is made to know that the terminal moves to the non-allowed area by triggering the registration area update procedure or the RAN notification area update procedure or the dedicated procedure, and the data radio bearer corresponding to the non-priority service is released based on the preset procedure; or when the terminal moves to a non-allowed area and the subsequent prior service arrives, only the data radio bearer corresponding to the prior service is recovered, but the data radio bearer corresponding to the non-prior service is released or suspended, so that the data radio bearer which cannot be used or does not need to be used is prevented from being recovered in the non-allowed area, and the utilization efficiency of network resources is improved.

As shown in fig. 4, an embodiment of the present invention further provides a terminal, including: a transceiver 420, a memory 410, a processor 400, a user interface 430 and a computer program stored on the memory 410 and executable on the processor 400, the processor 400 being configured to read the program in the memory and execute the following processes:

Preferably, the processor 400 is further configured to: when a terminal in an inactive state moves to an unallowable area, it is determined that the terminal currently needs to selectively recover a data radio bearer.

Preferably, the processor 400 is further configured to: triggering a registration area updating process so that a core network can know that the terminal moves to a non-allowed area;

Preferably, the processor 400 is further configured to: sending a registration request message to a core network, wherein the registration request message carries first indication information indicating that the core network deactivates or releases a protocol data unit session corresponding to a non-priority service, so that the core network deactivates or releases the protocol data unit session corresponding to the non-priority service.

Preferably, the transceiver 420 is configured to: sending a registration request message to a core network;

the processor 400 is further configured to: and deactivating or releasing the protocol data unit session corresponding to the non-priority service according to the second indication information, thereby releasing the data radio bearer corresponding to the non-priority service.

Preferably, the processor 400 is further configured to: triggering a Radio Access Network (RAN) to inform an area updating process so that a core network can know that the terminal moves to a non-allowed area;

Preferably, the transceiver 420 is further configured to: transmitting a Radio Resource Control (RRC) recovery request message to a base station;

the processor 400 is further configured to: and releasing the data radio bearer set indicated in the RRC recovery message according to the indication of the RRC recovery message, and recovering the remaining suspended data radio bearer set.

Preferably, the processor 400 is further configured to: after a terminal in an inactive state moves to an unallowed area, when a priority service arrives, determining that the terminal currently needs to selectively recover a data radio bearer;

the transceiver 420 is further configured to: transmitting a Radio Resource Control (RRC) recovery request message to a base station;

Preferably, the processor 400 is further configured to: the upper layer of the terminal determines that a priority service arrives, maps the arrived priority service to a corresponding QoS flow set, and informs the access layer of the terminal of the QoS flow set;

the transceiver 420 is further configured to: sending an RRC recovery request message to a base station; the RRC recovery request message indicates a data radio bearer set corresponding to the QoS flow set of the priority service; or, the access layer of the terminal sends an RRC recovery request message to the base station, where the RRC recovery request message indicates the QoS flow set of the priority service, and the base station maps the QoS flow set of the priority service to the corresponding data radio bearer set.

Preferably, the transceiver 420 is further configured to: receiving a paging message sent by a core network, wherein the paging message is sent when the core network determines that a priority service arrives;

Preferably, the transceiver 420 is further configured to: receiving broadcast information of a cell; the processor is further configured to: and comparing the broadcast information with the service area limit information stored by the terminal to determine that the terminal moves to a non-allowed area.

Preferably, the processor 400 is further configured to: triggering a special flow to inform a core network that the terminal moves to a non-allowed area; and the core network initiates the deactivation or release process of the protocol data unit session corresponding to the non-priority service to release the data radio bearer corresponding to the non-priority service.

Preferably, the processor 400 is further configured to: and initiating a deactivation or release process of the protocol data unit session corresponding to the non-priority service, and releasing the data radio bearer corresponding to the non-priority service.

In summary, in the embodiment of the present invention, the core network or the base station learns that the terminal moves to the non-allowed area by triggering the registration area update process or the RAN notification area update process or the dedicated flow, and releases the data radio bearer corresponding to the non-priority service based on the preset flow; or when the terminal moves to a non-allowed area and the subsequent prior service arrives, only the data radio bearer corresponding to the prior service is recovered, but the data radio bearer corresponding to the non-prior service is released or suspended, so that the data radio bearer which cannot be used or does not need to be used is prevented from being recovered in the non-allowed area, and the utilization efficiency of network resources is improved.

It should be noted that, the terminal provided in the embodiments of the present invention is a terminal capable of executing the method for recovering a data radio bearer, and all embodiments of the method for recovering a data radio bearer are applicable to the terminal, and can achieve the same or similar beneficial effects.

As shown in fig. 5, an embodiment of the present invention further provides a device for recovering a data radio bearer, which is applied to a terminal, and includes:

a first determining module 51, configured to determine that selective recovery of a data radio bearer is currently required;

the first processing module 52 is configured to trigger a preset flow to control the release or suspension of the data radio bearer corresponding to the non-priority service.

Preferably, the first determining module includes:

the first sub-module is used for determining that the terminal in the inactive state needs to selectively recover the data radio bearer currently when the terminal moves to the non-allowed area.

Preferably, the first processing module includes:

the first triggering submodule is used for triggering the updating process of the registration area so that the core network can know that the terminal moves to a non-allowed area;

and the first release submodule is used for releasing the data radio bearer corresponding to the non-priority service by utilizing the registration area updating process.

Preferably, the first release sub-module includes:

a first unit, configured to send a registration request message to a core network, where the registration request message carries first indication information indicating that the core network deactivates or releases a protocol data unit session corresponding to a non-priority service, so that the core network deactivates or releases the protocol data unit session corresponding to the non-priority service.

Preferably, the first release sub-module includes:

a second unit, configured to send a registration request message to a core network;

a third unit, configured to receive a registration acceptance message fed back by a core network, where the registration acceptance message carries second indication information indicating that the terminal deactivates or releases a protocol data unit session corresponding to a non-priority service;

a fourth unit, configured to deactivate or release a protocol data unit session corresponding to a non-priority service according to the second indication information, so as to release a data radio bearer corresponding to the non-priority service.

Preferably, the first processing module includes:

the second triggering submodule is used for triggering a radio access network RAN to inform an area updating process so that a core network can know that the terminal moves to a non-allowed area;

and the second release submodule is used for releasing the data radio bearer corresponding to the non-priority service by using the RAN notification area updating process.

Preferably, the second release submodule includes:

a fifth unit, configured to send a radio resource control RRC recovery request message to the base station;

a sixth unit, configured to receive an RRC recovery message sent by a base station; wherein, the RRC recovery message indicates all the suspended data radio bearer sets except the data radio bearer set corresponding to the QoS flow set of the priority service;

a seventh unit, configured to release the data radio bearer set indicated in the RRC recovery message according to the indication of the RRC recovery message, and recover the remaining suspended data radio bearer set.

Preferably, the first determining module includes:

the second sub-module is used for determining that the terminal currently needs to selectively recover the data radio bearer when the priority service arrives after the terminal in the inactive state moves to the non-allowed area;

the first processing module comprises:

a third sub-module, configured to send a radio resource control RRC recovery request message to the base station;

a fourth sub-module, configured to receive an RRC recovery message sent by the base station; wherein, the RRC recovery message indicates all the suspended data radio bearer sets except the data radio bearer set corresponding to the QoS flow set of the priority service; according to the indication of the RRC recovery message, releasing the data radio bearer set indicated in the RRC recovery message, and recovering the remaining suspended data radio bearer set;

Preferably, the third sub-module includes:

an eighth unit, configured to determine that a priority service arrives at an upper layer of a terminal, map the arrived priority service to a corresponding QoS flow set, and notify the QoS flow set to an access layer of the terminal;

a ninth unit, configured to map, by an access layer of the terminal, a QoS flow set of a priority service to a corresponding data radio bearer set, and send an RRC recovery request message to a base station; the RRC recovery request message indicates a data radio bearer set corresponding to the QoS flow set of the priority service; or, the access layer of the terminal sends an RRC recovery request message to the base station, where the RRC recovery request message indicates the QoS flow set of the priority service, and the base station maps the QoS flow set of the priority service to the corresponding data radio bearer set.

Preferably, the third sub-module includes:

a tenth unit, configured to receive a paging message sent by a core network, where the paging message is sent by the core network when it is determined that a priority service arrives;

an eleventh unit, configured to send a radio resource control RRC recovery request message to the base station.

Preferably, the terminal further includes:

and the comparison module is used for receiving the broadcast information of the cell, comparing the broadcast information with the service area limit information stored by the terminal and determining that the terminal moves to a non-allowed area.

Preferably, the first processing module includes:

a fifth sub-module, configured to trigger a dedicated flow to notify a core network that the terminal moves to a non-allowed area; and the core network initiates the deactivation or release process of the protocol data unit session corresponding to the non-priority service to release the data radio bearer corresponding to the non-priority service.

Preferably, the first processing module includes:

and the sixth sub-module is used for initiating a deactivation or release process of the protocol data unit session corresponding to the non-priority service and releasing the data radio bearer corresponding to the non-priority service.

As shown in fig. 6, an embodiment of the present invention further provides a base station, including: a transceiver 620, a memory 610, a processor 600 and a computer program stored on the memory 610 and executable on the processor 600, the processor 600 being configured to read the program in the memory and execute the following processes:

Preferably, the transceiver 620 is configured to: receiving a Radio Resource Control (RRC) recovery request message sent by a terminal;

the processor 600 is further configured to: acquiring allowed area information and/or non-allowed area information of the terminal;

Preferably, the processor 600 is further configured to: and informing the area updating process by using the radio access network RAN that the data radio bearer corresponding to the non-priority service is released.

Preferably, the transceiver 620 is further configured to:

Preferably, the transceiver 620 is further configured to: requesting a core network to release or deactivate a quality of service (QoS) flow of a non-priority service;

the processor 600 is further configured to: and releasing the data radio bearer corresponding to the QoS flow of the non-priority service according to the feedback message.

Preferably, the processor 600 is further configured to: acquiring identification information of a quality of service (QoS) flow of a priority service;

the transceiver 620 is further configured to: sending an RRC recovery message to the terminal; and releasing the data radio bearer set indicated in the RRC recovery message by the terminal and recovering the remaining suspended data radio bearer sets except the data radio bearers corresponding to the QoS (quality of service) flows indicating the priority service in the RRC recovery message.

Preferably, the transceiver 620 is further configured to: receiving a Radio Resource Control (RRC) recovery request message sent by a terminal;

Preferably, the RRC recovery request message indicates a data radio bearer set corresponding to the QoS flow set of the priority service;

or, the RRC restoration request message indicates a QoS flow set of the priority service, and the processor 600 is further configured to: and mapping the QoS flow set of the priority service to a corresponding data radio bearer set.

Preferably, the transceiver 620 is further configured to: receiving indication information sent by a core network after determining that a priority service arrives, wherein the indication information is used for indicating that the base station has the priority service to arrive; the indication information also indicates the service quality QoS flow set of the priority service;

the processor 600 is further configured to: and mapping the QoS flow set of the priority service to a corresponding data radio bearer set.

It should be noted that, the base station provided in the embodiments of the present invention is a base station capable of executing the foregoing method for recovering a data radio bearer, and all embodiments of the method for recovering a data radio bearer are applicable to the base station, and can achieve the same or similar beneficial effects.

As shown in fig. 7, an embodiment of the present invention further provides a device for recovering a data radio bearer, which is applied to a base station, and includes:

a second determining module 71, configured to determine that the terminal currently needs to selectively recover the data radio bearer;

the second processing module 72 is configured to control the data radio bearer corresponding to the non-priority service to be released or suspended according to the first target flow.

Preferably, the second determining module is specifically configured to:

Preferably, the second processing module is specifically configured to:

Preferably, the second processing module is further configured to:

Preferably, the base station further includes:

the receiving module is used for receiving indication information sent by a core network after the core network determines that a priority service arrives, wherein the indication information is used for indicating that the base station has the priority service to arrive; the indication information also indicates the service quality QoS flow set of the priority service;

and the mapping module is used for mapping the QoS flow set of the priority service to a corresponding data radio bearer set.

As shown in fig. 8, an embodiment of the present invention further provides a core network device, including: a transceiver 820, a memory 810, a processor 800 and a computer program stored on the memory 810 and executable on the processor 800; the processor 800 is used for reading the program in the memory and executing the following processes:

Preferably, the processor 800 is further configured to: determining that the terminal moves to a non-allowed area according to the updating process of the registration area, and determining that the terminal needs to selectively recover the data radio bearer currently;

Preferably, the transceiver 820 is further configured to: receiving a registration request message sent by a terminal, wherein the registration request message carries first indication information indicating that the core network deactivates or releases a protocol data unit session corresponding to a non-priority service;

the processor 800 is further configured to: and deactivating or releasing the protocol data unit session corresponding to the non-priority service according to the first indication information, thereby releasing the data radio bearer corresponding to the non-priority service.

Preferably, the transceiver 820 is further configured to: receiving a registration request message sent by a terminal;

Preferably, the processor 800 is further configured to: determining that the terminal moves to a non-allowed area according to a radio access network RAN notification area updating process, and determining that the terminal currently needs to selectively recover data radio bearer;

Preferably, the transceiver 820 is further configured to: receiving a notification of a base station to determine that the terminal moves to a non-allowed area;

the processor 800 is further configured to: and initiating a deactivation or release process of the protocol data unit session corresponding to the non-priority service, and releasing the data radio bearer corresponding to the non-priority service.

Preferably, the transceiver 820 is further configured to: receiving a request of a base station, wherein the request is used for requesting the core network to release or deactivate a quality of service (QoS) flow of a non-priority service;

the processor 800 is further configured to: and initiating a process of releasing or deactivating the QoS flow of the non-priority service according to the request, and releasing the data radio bearer corresponding to the non-priority service.

Preferably, the processor 800 is further configured to: determining that a priority service arrives, mapping the priority service to a corresponding QoS flow set, sending a paging message to a terminal, and sending a Radio Resource Control (RRC) recovery request message to a base station by the terminal according to the paging message;

the transceiver 820 is further configured to: sending indication information to a base station, wherein the indication information is used for indicating that the base station has a priority service arrival; the indication information also indicates a QoS flow set of a priority service, and the QoS flow set of the priority service is mapped to a corresponding data radio bearer set by the base station.

Preferably, the processor 800 is further configured to: determining that the terminal moves to a non-allowed area by utilizing a special flow initiated by the terminal, and determining that the terminal needs to selectively recover the data radio bearer currently;

It should be noted that the core network device provided in the embodiment of the present invention is a core network device capable of executing the method for recovering a data radio bearer, and all embodiments of the method for recovering a data radio bearer are applicable to the core network device and can achieve the same or similar beneficial effects.

As shown in fig. 9, an embodiment of the present invention further provides a device for recovering a data radio bearer, which is applied to a core network, and includes:

a third determining module 91, configured to determine that the terminal currently needs to selectively recover the data radio bearer;

and a third processing module 92, configured to control, based on the second target process, that the data radio bearer corresponding to the priority service is released or suspended.

Preferably, the third determining module is specifically configured to:

Preferably, the third processing module is further configured to:

receiving a registration request message sent by a terminal;

Preferably, the third determining module is further configured to:

Preferably, the third processing module is further configured to:

Preferably, the third determining module is further configured to:

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the computer program implements each process in the above-mentioned method for recovering a data radio bearer applied to a terminal, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk; alternatively, the first and second electrodes may be,

when executed by the processor, the program implements the processes in the above-described embodiment of the method for recovering a data radio bearer applied to the base station side, and can achieve the same technical effect, and is not described herein again to avoid repetition. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk; alternatively, the first and second electrodes may be,

when executed by the processor, the program implements the processes in the above-described embodiment of the method for recovering a data radio bearer applied to a core network, and can achieve the same technical effect, and is not described herein again to avoid repetition. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A method for recovering a data radio bearer is applied to a terminal, and is characterized by comprising the following steps:

triggering a preset flow to control the release or suspension of the data radio bearer corresponding to the non-priority service; the data radio bearer corresponding to the non-priority service is a data radio bearer which cannot be used or does not need to be used by the terminal at present;

when a terminal in an inactive state moves to an unallowed area, determining that the terminal currently needs to selectively recover a data radio bearer;

or after the terminal in the non-active state moves to the non-allowed area, when the priority service arrives, the terminal is determined to be required to selectively restore the data radio bearer currently.

2. The recovery method according to claim 1, wherein the step of triggering the release of the data radio bearer corresponding to the pre-configured flow control non-priority service includes:

3. The recovery method according to claim 2, wherein the step of releasing the data radio bearer corresponding to the non-priority service by using the registration area update procedure comprises:

4. The recovery method according to claim 2, wherein the step of releasing the data radio bearer corresponding to the non-priority service by using the registration area update procedure comprises:

sending a registration request message to a core network;

5. The recovery method according to claim 1, wherein the step of triggering the release of the data radio bearer corresponding to the pre-configured flow control non-priority service includes:

6. The recovery method according to claim 5, wherein the step of releasing the data radio bearer corresponding to the non-priority service by using the RAN notification area update procedure comprises:

7. The recovery method according to claim 1, wherein the step of triggering the preset flow to control the release or suspension of the data radio bearer corresponding to the non-priority service comprises:

8. The recovery method according to claim 7, wherein the step of sending a radio resource control RRC recovery request message to the base station comprises:

9. The recovery method according to claim 7, wherein the step of sending a radio resource control RRC recovery request message to the base station comprises:

10. The recovery method according to claim 1, further comprising:

11. The recovery method according to claim 10, wherein the step of triggering the release of the data radio bearer corresponding to the pre-configured flow control non-priority service includes:

12. The recovery method according to claim 10, wherein the step of triggering the release of the data radio bearer corresponding to the pre-configured flow control non-priority service includes:

13. A method for recovering a data radio bearer, applied to a base station, includes:

controlling the data radio bearer corresponding to the non-priority service to be released or suspended according to the first target flow; the data radio bearer corresponding to the non-priority service is a data radio bearer which cannot be used or does not need to be used by the terminal at present;

14. The recovery method according to claim 13, wherein the step of controlling the release of the data radio bearer corresponding to the non-priority service according to the first target flow comprises:

15. The recovery method according to claim 14, wherein the step of notifying the area update procedure by using the RAN to release the data radio bearer corresponding to the non-prioritized service comprises:

16. The recovery method according to claim 14, wherein the step of notifying the area update procedure by using the RAN to release the data radio bearer corresponding to the non-prioritized service comprises:

17. The recovery method according to claim 14, wherein the step of notifying the area update procedure by using the RAN to release the data radio bearer corresponding to the non-prioritized service comprises:

18. The recovery method according to claim 13, wherein the step of controlling the data radio bearer corresponding to the non-priority service to be released or suspended according to the first target flow includes:

19. The recovery method of claim 18, wherein the RRC recovery request message indicates a set of data radio bearers corresponding to the set of QoS flows of the priority service;

20. The recovery method according to claim 18, wherein before receiving the RRC recovery request message sent by the terminal, the method further comprises:

21. A method for recovering a data radio bearer is applied to a core network, and is characterized by comprising the following steps:

controlling the data radio bearer corresponding to the non-priority service to be released or suspended based on the second target flow; the data radio bearer corresponding to the non-priority service is a data radio bearer which cannot be used or does not need to be used by the terminal at present;

or, determining that the terminal moves to a non-allowed area according to the radio access network RAN notification area updating process, and determining that the terminal currently needs to selectively recover the data radio bearer;

or, a special flow initiated by the terminal is utilized to determine that the terminal moves to a non-allowed area, and the terminal currently needs to selectively recover the data radio bearer.

22. The recovery method according to claim 21, wherein the step of controlling the data radio bearer corresponding to the non-priority service to be released based on the second target flow comprises:

23. The recovery method according to claim 22, wherein the step of releasing the data radio bearer corresponding to the non-priority service by using the registration area update procedure comprises:

24. The recovery method according to claim 22, wherein the step of releasing the data radio bearer corresponding to the non-priority service by using the registration area update procedure comprises:

receiving a registration request message sent by a terminal;

25. The method according to claim 21, wherein the step of releasing or suspending the data radio bearer corresponding to the priority service based on the second target process control comprises:

26. The recovery method of claim 25, wherein the step of releasing the data radio bearer corresponding to the non-priority service by using the RAN notification area update procedure comprises:

27. The recovery method of claim 25, wherein the step of releasing the data radio bearer corresponding to the non-priority service by using the RAN notification area update procedure comprises:

28. The method according to claim 21, wherein the step of releasing or suspending the data radio bearer corresponding to the priority service based on the second target process control comprises:

29. The recovery method according to claim 21, wherein the step of controlling the data radio bearer corresponding to the non-priority service to be released or suspended based on the second target flow comprises:

30. A terminal, comprising: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor; wherein the processor is configured to read a program in the memory and execute the following processes:

wherein the processor is further configured to: when a terminal in an inactive state moves to an unallowed area, determining that the terminal currently needs to selectively recover a data radio bearer;

alternatively, the processor is further configured to: after the terminal in the non-active state moves to a non-allowed area, when the priority service arrives, the terminal is determined to be required to selectively recover the data radio bearer currently.

31. The terminal of claim 30, wherein the processor is further configured to: triggering a registration area updating process so that a core network can know that the terminal moves to a non-allowed area;

32. The terminal of claim 31, wherein the processor is further configured to: sending a registration request message to a core network, wherein the registration request message carries first indication information indicating that the core network deactivates or releases a protocol data unit session corresponding to a non-priority service, so that the core network deactivates or releases the protocol data unit session corresponding to the non-priority service.

33. The terminal of claim 31, wherein the transceiver is configured to: sending a registration request message to a core network;

34. The terminal of claim 31, wherein the processor is further configured to: triggering a Radio Access Network (RAN) to inform an area updating process so that a core network can know that the terminal moves to a non-allowed area;

35. The terminal of claim 34, wherein the transceiver is further configured to: transmitting a Radio Resource Control (RRC) recovery request message to a base station;

36. The terminal of claim 30, wherein the transceiver is further configured to: transmitting a Radio Resource Control (RRC) recovery request message to a base station;

37. The terminal of claim 36, wherein the processor is further configured to: the upper layer of the terminal determines that a priority service arrives, maps the arrived priority service to a corresponding QoS flow set, and informs the access layer of the terminal of the QoS flow set;

38. The terminal of claim 36, wherein the transceiver is further configured to: receiving a paging message sent by a core network, wherein the paging message is sent when the core network determines that a priority service arrives;

39. The terminal of claim 31, wherein the transceiver is further configured to: receiving broadcast information of a cell; the processor is further configured to: and comparing the broadcast information with the service area limit information stored by the terminal to determine that the terminal moves to a non-allowed area.

40. The terminal of claim 39, wherein the processor is further configured to: triggering a special flow to inform a core network that the terminal moves to a non-allowed area; and the core network initiates the deactivation or release process of the protocol data unit session corresponding to the non-priority service to release the data radio bearer corresponding to the non-priority service.

41. The terminal of claim 39, wherein the processor is further configured to: and initiating a deactivation or release process of the protocol data unit session corresponding to the non-priority service, and releasing the data radio bearer corresponding to the non-priority service.

42. A data radio bearer recovery device applied to a terminal is characterized by comprising:

the first processing module is used for triggering the preset flow to control the release or suspension of the data radio bearer corresponding to the non-priority service; the data radio bearer corresponding to the non-priority service is a data radio bearer which cannot be used or does not need to be used by the terminal at present;

wherein the first determining module comprises:

the first sub-module is used for determining that the terminal currently needs to selectively recover the data radio bearer when the terminal in the inactive state moves to a non-allowed area;

or, the second sub-module is configured to determine that the terminal currently needs to selectively recover the data radio bearer when the priority service arrives after the terminal in the inactive state moves to the non-allowed area.

43. A base station, comprising: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor; wherein the processor is configured to read a program in the memory and execute the following processes:

44. The base station of claim 43, wherein the processor is further configured to: and informing the area updating process by using the radio access network RAN that the data radio bearer corresponding to the non-priority service is released.

45. The base station of claim 44, wherein the transceiver is further configured to:

46. The base station of claim 44, wherein the transceiver is further configured to: requesting a core network to release or deactivate a quality of service (QoS) flow of a non-priority service;

47. The base station of claim 44, wherein the processor is further configured to: acquiring identification information of a quality of service (QoS) flow of a priority service;

48. The base station of claim 43, wherein the transceiver is further configured to: receiving a Radio Resource Control (RRC) recovery request message sent by a terminal;

49. The base station of claim 48, wherein the RRC resume request message indicates a set of data radio bearers corresponding to the set of QoS flows for the priority service;

50. The base station of claim 48, wherein the transceiver is further configured to: receiving indication information sent by a core network after determining that a priority service arrives, wherein the indication information is used for indicating that the base station has the priority service to arrive; the indication information also indicates the service quality QoS flow set of the priority service;

51. A data radio bearer recovery apparatus applied to a base station, comprising:

the second processing module is used for controlling the data radio bearer corresponding to the non-priority service to be released or hung according to the first target flow; the data radio bearer corresponding to the non-priority service is a data radio bearer which cannot be used or does not need to be used by the terminal at present;

wherein the second determining module is specifically configured to:

52. A core network device, comprising: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor; wherein the processor is configured to read a program in the memory and execute the following processes:

alternatively, the processor is further configured to: determining that the terminal moves to a non-allowed area according to a radio access network RAN notification area updating process, and determining that the terminal currently needs to selectively recover data radio bearer;

alternatively, the processor is further configured to: and determining that the terminal moves to a non-allowed area by utilizing a special flow initiated by the terminal, and determining that the terminal currently needs to selectively recover the data radio bearer.

53. The core network device of claim 52, wherein the processor is further configured to:

54. The core network device of claim 53, wherein the transceiver is further configured to: receiving a registration request message sent by a terminal, wherein the registration request message carries first indication information indicating that the core network deactivates or releases a protocol data unit session corresponding to a non-priority service;

55. The core network device of claim 53, wherein the transceiver is further configured to: receiving a registration request message sent by a terminal;

56. The core network device of claim 52, wherein the processor is further configured to:

57. The core network device of claim 56, wherein the transceiver is further configured to: receiving a notification of a base station to determine that the terminal moves to a non-allowed area;

58. The core network device of claim 56, wherein the transceiver is further configured to: receiving a request of a base station, wherein the request is used for requesting the core network to release or deactivate a quality of service (QoS) flow of a non-priority service;

59. The core network device of claim 52, wherein the processor is further configured to: determining that a priority service arrives, mapping the priority service to a corresponding QoS flow set, sending a paging message to a terminal, and sending a Radio Resource Control (RRC) recovery request message to a base station by the terminal according to the paging message;

60. The core network device of claim 52, wherein the processor is further configured to:

61. A data radio bearer recovery apparatus applied to a core network, comprising:

the third processing module is used for controlling the data radio bearer corresponding to the non-priority service to be released or suspended based on the second target flow; the data radio bearer corresponding to the non-priority service is a data radio bearer which cannot be used or does not need to be used by the terminal at present;

wherein the third determining module is specifically configured to:

alternatively, the third determining module is further configured to:

and determining that the terminal moves to a non-allowed area by utilizing a special flow initiated by the terminal, and determining that the terminal currently needs to selectively recover the data radio bearer.

62. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the steps of the method for recovery of a data radio bearer according to any one of claims 1 to 12; alternatively, the first and second electrodes may be,

the program when executed by a processor implementing the steps in a method for recovery of a data radio bearer according to any of claims 13 to 20; alternatively, the first and second electrodes may be,

the program when executed by a processor implements the steps in a method for recovery of a data radio bearer according to any of claims 21 to 29.