CN113938963B - Communication interoperation method and device - Google Patents

Abstract

The application provides a communication interoperation method and device, relates to the technical field of communication, and can solve the problems that service requirements cannot be met or 4G network loads are heavy in the process of interoperation of a 5G network and a 4G network. The method comprises the following steps: the access network equipment receives a measurement report from the terminal equipment; the measurement report is used for indicating the access network equipment to fall back to the terminal equipment of the fourth generation 4G network; the access network equipment determines a service to be dropped in at least one service of the terminal equipment; the service to be dropped is the service to be dropped to the 4G network; the access network equipment generates second indication information which is used for indicating the service to be dropped; the access network device sends the second indication information. The embodiment of the application is used in the process of communication interoperation.

Description

Communication interoperation method and device

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a method and an apparatus for interoperating communications.

Background

As the fifth generation network is gradually applied in daily life, there is a case where the terminal is simultaneously covered by the fifth generation (5th generation,5G) network and the fourth generation (4th generation,4G) network, and in this case, the service of the terminal device may be carried in either the 5G network or the 4G network. In order to improve the service experience of the user, the service of the terminal device may be preferentially carried in the 5G network.

But when the quality of the 5G network is poor, the service of the terminal device needs to be migrated to the 4G network. At present, the terminal equipment is migrated from the 5G network to the 4G network, so that the traffic of the terminal equipment is generally migrated as a whole, and the difference between the traffic is not considered, for example, the traffic of a generic routing encapsulation protocol (generic routing encapsulation, GRE) can only be carried on the 5G network, and if the GRE traffic is migrated to the 4G network, the traffic needs cannot be met or the load of the 4G network is heavy.

Disclosure of Invention

The application provides a communication interoperation method and device, which can solve the problems that service requirements cannot be met or 4G network loads are heavy in the process of interoperation of a 5G network and a 4G network.

In order to achieve the above purpose, the present application adopts the following technical scheme:

in a first aspect, the present application provides a method of communication interoperation, the method comprising: the access network equipment receives a measurement report from the terminal equipment; the measurement report is used for indicating the access network equipment to fall back to the fourth generation (the forth) 4G network terminal equipment; the access network equipment determines a service to be dropped in at least one service of the terminal equipment; the service to be dropped is the service to be dropped to the 4G network; the access network equipment generates second indication information which is used for indicating the service to be dropped; the access network device sends the second indication information.

Based on the above technical solution, in the communication interoperation method provided in the embodiments of the present application, the second indication information for indicating the service to be dropped is generated and sent by the access network device, so that the terminal device can selectively drop part of the service according to the second indication information, which avoids that some service that cannot be carried in the 4G network drops back to the 4G network, and further ensures the continuity of the service and the stability of the 4G network as much as possible.

In one possible implementation, the measurement report is used to instruct the access network device to redirect the terminal device to the 4G network; the access network device generates second indication information, including: the access network equipment generates second indication information and radio resource control Release RRC Release information; the RRC Release information is used for bearing second indication information; the access network device sends second indication information, including: the access network device sends RRC Release information to the terminal device. In the implementation manner, the method can be applied to a redirection scene, and the access network equipment needs to carry the second indication information in the RRC Release information, so that the terminal equipment can selectively fall back part of the services according to the second indication information, the situation that some services which cannot be carried in the 4G network fall back to the 4G network is avoided, and further the continuity of the services and the stability of the 4G network are ensured as much as possible.

In one possible implementation, the measurement report is used to instruct the access network device to switch the terminal device to the 4G network; the access network device generates second indication information, including: the access network equipment generates second indication information and switching requirement Handover Required information; wherein, handover Required information is used for bearing second indication information; the access network device sends second indication information, including: the access network equipment sends mobility from E-UTRA command information to an access and mobility management function AMF; wherein the mobility from E-UTRA command information is used to carry the second indication information. In the implementation manner, the method can be applied to a switching scene, and the access network equipment needs to carry the second indication information in the RRC Release information, so that the terminal equipment can selectively fall back part of the services according to the second indication information, the situation that some services which cannot be carried in the 4G network fall back to the 4G network is avoided, and further the continuity of the services and the stability of the 4G network are ensured as much as possible.

In one possible implementation manner, the access network device obtains preconfiguration information of each service in at least one service of the terminal device; the pre-configuration information is used for indicating the network bearing condition of the service; the pre-configuration information comprises service information loaded on 4G and 5G, service information loaded on 5G only and non-configuration service information; the access network equipment determines a service to be dropped from at least one service according to the pre-configuration information; the pre-configuration information of the service to be dropped is the service information carried in 4G and 5G or the service information without configuration. In the implementation manner, the access network device obtains the pre-configuration information of the service to be moved, and determines the service to be dropped according to the pre-configuration information of the service, so that the terminal device can selectively drop part of the service in the subsequent moving process, thereby avoiding that some service which cannot be carried in the 4G network drops back to the 4G network, and further ensuring the continuity of the service and the stability of the 4G network as much as possible.

In a second aspect, the present application provides a method of communication interoperation, the method comprising: the terminal equipment sends a measurement report to the access network equipment; the measurement report is used for instructing the access network device to redirect the terminal device to the 4G network; the terminal equipment receives the RRC Release information from the access network equipment; the RRC Release information is used for bearing the second indication information.

In a third aspect, the present application provides a method of communication interoperation, the method comprising: the access and mobility management function AMF receives second indication information; the second indication information is used for indicating the service to be dropped; the AMF sends a pre-migration request Forward Relocation Request message to the EPC; the AMF receives the forward migration response Forward Relocation Response information from the EPC.

In one possible implementation, the measurement report is used to instruct the access network device to switch the terminal device to the 4G network; the terminal device receives second indication information, including: the terminal equipment receives the switching requirement Handover Required information from the access network equipment; wherein the Handover Required information is used to carry the second indication information.

In a fourth aspect, the present application provides a communications interoperable device, the device comprising: a communication unit and a processing unit; a communication unit for receiving a measurement report from a terminal device; the measurement report is used for indicating the access network equipment to fall back to the terminal equipment of the fourth generation 4G network; a processing unit, configured to determine a service to be dropped in at least one service of the terminal device; the service to be dropped is the service to be dropped to the 4G network; the processing unit is also used for generating second indication information, wherein the second indication information is used for indicating the service to be dropped; and the communication unit is also used for sending the second indication information.

In a fifth aspect, the present application provides a communications interoperable device, the device comprising: a communication unit and a processing unit; the processing unit is used for indicating the communication unit to send a measurement report to the access network equipment; the measurement report is used for instructing the access network device to redirect the terminal device to the 4G network; a processing unit, configured to instruct the communication unit to receive RRC Release information from the access network device; the RRC Release information is used for bearing the second indication information.

In a sixth aspect, the present application provides a communications interoperable device, the device comprising: a communication unit and a processing unit; the processing unit is used for indicating the communication unit to receive the second indication information; the second indication information is used for indicating the service to be dropped; a processing unit, configured to instruct the communication unit to send the pre-migration request Forward Relocation Request information to the EPC; a processing unit for instructing the communication unit to receive forward migration response Forward Relocation Response information from the EPC.

In a seventh aspect, the present application provides a communications interoperable device, the device comprising: a processor and a communication interface; the communication interface is coupled to a processor for running a computer program or instructions to implement the communication interoperation method as described in any one of the possible implementations of the first aspect and the first aspect.

In an eighth aspect, the present application provides a computer readable storage medium having instructions stored therein which, when run on a terminal, cause the terminal to perform a communication interoperation method as described in any one of the possible implementations of the first aspect and the first aspect.

In a ninth aspect, embodiments of the present application provide a computer program product comprising instructions which, when run on a communications interoperable device, cause the communications interoperable device to perform the communications interoperable method as described in any one of the possible implementations of the first aspect and the first aspect.

In a tenth aspect, embodiments of the present application provide a chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being for running a computer program or instructions to implement a communication interoperation method as described in any one of the possible implementations of the first aspect and the first aspect.

Specifically, the chip provided in the embodiments of the present application further includes a memory, configured to store a computer program or instructions.

Drawings

FIG. 1 is a flow chart of a redirection provided in an embodiment of the present application;

fig. 2 is a flowchart of a handover according to an embodiment of the present application;

Fig. 3 is a schematic structural diagram of a communication system according to an embodiment of the present application;

fig. 4 (a) is a network architecture diagram of a 5G network according to an embodiment of the present application;

fig. 4 (b) is a schematic diagram of a network architecture of a 4G/5G system according to an embodiment of the present application;

FIG. 5 is a flow chart of a method of communication interoperation provided in an embodiment of the present application;

FIG. 6 is a flow chart of another method of communication interoperation provided by an embodiment of the present application;

FIG. 7 is a flow chart of another method of communication interoperation provided by an embodiment of the present application;

FIG. 8 is a flow chart of another method of communication interoperation provided by an embodiment of the present application;

fig. 9 is a schematic structural diagram of a communication interoperation device according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of another communication interoperation device according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of another communication interoperation device according to an embodiment of the present application.

Detailed Description

The following describes in detail a communication interoperation method and device provided in an embodiment of the present application with reference to the accompanying drawings.

The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone.

The terms "first" and "second" and the like in the description and in the drawings are used for distinguishing between different objects or for distinguishing between different processes of the same object and not for describing a particular sequential order of objects.

Furthermore, references to the terms "comprising" and "having" and any variations thereof in the description of the present application are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed but may optionally include other steps or elements not listed or inherent to such process, method, article, or apparatus.

It should be noted that, in the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

In the description of the present application, unless otherwise indicated, the meaning of "a plurality" means two or more.

The following explains the terms related to the embodiments of the present application, so as to facilitate the understanding of the reader.

(1) The interoperability of 4G and 5G refers to the interaction with both the access network device of 4G and the access network device of 5G through the terminal device. In general, the interoperation of 4G and 5G may include both cases of redirection and handover.

(2) Redirection refers to the redirection of a device (e.g., a terminal device) to a location specified by a new direction by various methods to re-determine the new direction.

Illustratively, the terminal device may be redirected from the 5G network to the 4G network. Next, a specific flow when the terminal device redirects from the 5G network to the 4G network is described, and as shown in fig. 1, the redirection flow includes the following S101 to S104.

S101, triggering the connected state 5G-4G interoperation.

S102, the terminal sends radio resource control release (radio resource control release, RRC release) information to a 5G base station (SA-G nodeB, S-gNB).

The RRC release information may carry 4G frequency point information and 4G frequency point priority information. Table 1 is an example of RRC release information.

TABLE 1

RRC release	Value taking
		4G frequency point information (rediretedcalinfo)	1800
4G frequency point priority information (cellresiectioncriorties)	2

The 4G frequency point information (rediredcaieinfo) carried in the RRC Release indicates the frequency point information of the target 4G. After receiving the RRC Release from the S-gNB, the terminal may attempt to camp on the frequency point specified by the 4G frequency point information after leaving the connected state.

S103, the terminal, the S-gNB and the time-sharing long-term evolution base station (time division long term evolution-nodeB) T-eNB search for the 4G cell and read the flow of the broadcast information.

S104, the terminal, the S-gNB and the T-eNB interact to access the 4G cell.

It should be noted that S103 to S104 are the procedure of re-accessing the 4G cell for the terminal.

It should be noted that, the foregoing is only a simple description of the redirection process, and the detailed process may refer to the prior art, which is not repeated in the present application.

(3) Handover refers to the process by which a terminal device is handed over from one network to another communication network.

Illustratively, the terminal device may switch from a 5G to a 4G network. Next, a specific flow when the terminal device is handed over from the 5G network to the 4G network will be described, and as shown in fig. 2, the handover flow includes the following S201 to S214.

S201, triggering the connected state 5G-4G interoperation.

S202, S-gNB transmits the switching requirement information to the 5G core network (5G core network,5GC).

In one possible implementation, the handover requirement information may be Handover Required information.

Note that Handover Required information may include target 4G cell-related information, PDU Session ID of handover, and QoS Flow ID under the PDU Session.

S203, 5GC sends forward migration request information to the evolved packet core (evolved packet core, EPC).

In one possible implementation, the forward migration request information may be Forward Relocation Request information.

S204, the EPC sends switching request information to the T-eNB.

In one possible implementation, the Handover Request information may be Handover Request information.

S205, the T-eNB sends switching request response information to the EPC.

In a possible implementation, the handover request reply information may be Handover Request ACK information.

S206, the EPC sends forward migration response information to the 5 GC.

In one possible implementation, the forward migration response information may be Forward Relocation Response information.

Note that S202 to S206 may be used as a handover preparation flow.

S207, 5GC sends switching command information to the S-gNB.

In one possible implementation, the Handover Command information may be Handover Command information.

S208, the S-gNB sends the switching command information from the wireless access base station in the 4G network to the terminal.

In one possible implementation, the handover Command information from the radio access base station in the 4G network may be Mobility from E-UTRA Command information.

S209, the terminal interacts with the T-eNB to perform a random access flow.

S210, the terminal sends RRC reconfiguration completion information to the T-eNB.

In one possible implementation, the RRC reconfiguration complete information may be RRC Reconfiguration Complete information.

It should be noted that S207 to S210 may be used as the handover execution flow.

S211, the T-eNB sends switching notification information to the EPC.

In one possible implementation, the Handover notification information may be Handover notification information.

S212, the EPC transmits forward migration completion information to the 5 GC.

In one possible implementation, the forward migration completion information may be Forward Relocation Cemplete information.

S213, S-gNB, T-eNB, T-gNB, EPC and 5GC interact to release the terminal context.

It should be noted that S211 to S213 may be used as the handover completion flow.

S214, the terminal, the S-gNB, the T-eNB, the T-gNB, the EPC and the 5GC interact to carry out a TAU flow.

It should be noted that, the above S201-S214 are only a simple description of the switching process, and the detailed process may refer to the prior art, which is not repeated in the present application.

(4) The network slicing refers to a mode of networking on demand, which can enable operators to separate a plurality of virtual end-to-end networks on a unified infrastructure, and each network slicing is logically isolated from a wireless access network to a core network so as to adapt to various types of services.

It should be noted that each network slice has a respective identifier, and multiple services included in the slice also have respective identifiers. In the signaling flow of the network, the identification of the slice may be represented by a protocol data unit (Protocol Data Unit, PDU) session identification; the identity of the service may be represented by a 5G quality of service flow (5G quality of service flow,5QI) identity in the PDU session.

The foregoing is a simplified description of some of the concepts involved in the embodiments of this application.

The method and the device can be applied to a 4G system, various systems based on 4G system evolution, a 5G system and various systems based on 5G system evolution. Among other things, the 4G system may also be referred to as an evolved packet system (evolved packet system, EPS). The core network of a 4G system may be referred to as EPC and the access network may be referred to as long term evolution (long term evolution, LTE). The core network of a 5G system may be referred to as a 5GC and the access network may be referred to as a New Radio (NR). For convenience of description, the present application will be exemplarily described below by taking an application of the present application to a 5G system as an example, but it will be understood that the present application is equally applicable to a 4G system, a third generation (3th Generation,3G) system, etc., without limitation.

Fig. 3 shows a schematic diagram of a communication system. As shown in fig. 3, the communication system 30 includes a first network 31, a second network 32, and a terminal 33. The first network 31 includes therein a first access network device 311. The second network 32 includes a second access network device 321 and the like.

The first network 31 and the second network 32 are communicatively connected by a communication link and each can provide network services for the terminal 33.

The terminal 33 may communicate with the first network 31 and the second network 32 by a wired manner (e.g., universal serial bus (universal serial bus, USB), type-c), etc. Of course, the terminal 30 may also communicate with the first network 31 and the second network 32 wirelessly. For example, the terminal 30 communicates with the first network 31 and the second network 32 through a network, such as wireless fidelity (wireless fidelity, wiFi), or the like.

The first network device 311 determines that when the terminal device 33 accesses the first access network device 311, if moving to be within the coverage area of the second access network device 321, the terminal device 33 may connect to the second access network device 321.

Fig. 4 (a) shows a network architecture diagram of a 5G network, and referring to fig. 4 (a), a 5G network includes the following network element functional entities: a 5G (radio) access network (R) AN, user Equipment (UE), a user plane function (user planefunction, UPF), a Data Network (DN), and a network element function entity in a 5G core network. The network element functional entity in the 5G core network comprises: an access and mobility management function (access and mobility nanagement function, AMF), a session management function (session management function, SMF), an authentication service function (authentication server function, AUSF), a network slice selection function (network slice selection function, NSSF), a network capability open function (network exposure function, NEF), a network element data repository function (NF repository function, NRF), a policy control function (policy control function, PCF), a unified data management function (unified data management, UDM), and an application layer function (application function, AF). The specific functions of the network element functional entities are as follows: the AMF is used for being responsible for access and mobility management of the user; the SMF is used for being responsible for session management of the user; the AUSF is used for authenticating the 3GPP and non-3 GPP access of the user; the UPF is used for being responsible for user plane processing; the DN is responsible for data networks such as operator traffic, internet access or third party traffic; the NSSF is used for being responsible for selecting network slices adopted by user services; the NRF is used for being responsible for registration, discovery and selection of network functions; the NEF is used for opening the capability of the 5G network to an external system; the PCF is used for controlling the strategy of the user, including the strategy of the session, the mobility strategy and the like; the UDM is used for being responsible for subscription data management of the user; the AF is responsible for interworking with the core network to provide services for the user.

The connection relation of the network element functional entities is as follows:

the UE is connected to the AMF through an N1 interface.

The (R) AN and the AMF are connected through AN N2 interface.

The (R) AN and UPF are connected through AN N3 interface.

The UPF and the SMF are connected through an N4 interface.

The data is transmitted through an N9 interface inside the UPF (the data is transmitted between the uplink classifier UPF and the anchor UPF through the N9 interface).

The UPF and DN are connected through an N6 interface.

The service architecture adopts an IT bus:

the AMF accesses the bus via a service-based interface Namf.

The AUSF accesses the bus via a traffic-based interface Nausf.

The SMF accesses the bus via a service-based interface Nsmf.

NSSF accesses the bus via a service-based interface NSsf.

The NEF accesses the bus via a service-based interface Nnef.

The NRF accesses the bus via a service-based interface Nnrf.

The PCF accesses the bus via a service-based interface Npcf.

The UDM accesses the bus via a traffic based interface Nudm.

The AF accesses the bus via a traffic-based interface Naf.

The application scenario of the application is briefly introduced above.

The TAU procedure of moving the terminal from the 5G network to the 4G network needs to be applied in a 4G/5G system, the 4G/5G system needs to have a communication link between the 4G network and the 5G network in the 4G/5G system, and data can be transmitted (for example, the AMF and the MME communicate through the communication link).

Fig. 4 (b) schematically illustrates a network architecture of a 4G/5G system. In fig. 4, the network elements included in the 4G network in the 4G/5G system are: E-UTRAN, MME, SGW; the network elements included in the 5G network in the 4G/5G system are: NG-RAN, AMF; the network elements included by the 4G network and the 5G network in the 4G/5G system are as follows: UPF+PGW-U, SMF +PGW-C, PCF, HSS +UDM.

The function of part of the network elements in fig. 4 (b) is as follows:

the E-UTRAN serves as a radio access base station in the 4G network.

The MME is responsible for access and mobility management for the user.

The SGW is used as a user plane gateway and is mainly used for: packet routing and forwarding functions; compressing an IP header; an IDLE state end point, a downlink data buffer; anchor points for switching between E-NodeBs; route optimization.

The NG-RAN acts as a radio access base station in the 5G network.

The P-GW is used as a control plane gateway and is mainly used for: packet routing and forwarding; anchor function (HA function) between 3GPP and non-3 GPP networks; UE IP address allocation, gateway function of external PDN.

The HSS is mainly used for storing all service related data of users in the LTE/SAE network.

The interaction between network elements and the corresponding interfaces are shown in fig. 4 (b). The connection relationship of the network element functional entities in fig. 4 (b) is as follows:

The UE accesses E-UTRAN, and the E-UTRAN and the MME are connected through an S1-MME interface.

MME is connected with SGW through S11; E-UTRAN and SGW are connected through S1-U interface.

The SGW is connected with the UPF+PGW-U through an S5-U interface.

The SGW and the SMF+PGW-C are connected through an S5-C interface.

SMF+PGW-C is connected with PCF through N7 interface.

SMF+PGW-C and HSS+UDM are connected through N10 interface.

The UE accesses NR-RAN, and the NR-RAN and the AMF are connected through an N2 interface.

The UE is connected to the AMF through N1.

The NR-RAN and the UPF+PGW-U are connected through an N3 interface.

AMF and SMF+PGW-C are connected through N11 interface.

The AMF interfaces with the PCF via N15.

The AMF is connected with HSS+UDM through N8 interface.

In addition, the communication system described in the embodiments of the present application is for more clearly describing the technical solution of the embodiments of the present application, and does not constitute a limitation on the technical solution provided in the embodiments of the present application, and as a person of ordinary skill in the art can know, with evolution of the network architecture and appearance of a new communication system, the technical solution provided in the embodiments of the present application is equally applicable to similar technical problems.

Typically, the terminal device is a procedure for migrating from the 5G network to the 4G network based on coverage or voice triggering. At present, after the trigger condition is met, the terminal device moves all services of the terminal device from the 5G network to the 4G network, and does not perform differentiation processing on different types of services in different slices subscribed by the terminal device, for example, the services with high GRE can only be loaded on the 5G network, and if the services are also migrated to the 4G network, the service requirements cannot be met or the load of the 4G network is heavy.

In order to solve the problems in the prior art, the embodiment of the application provides a communication interoperation method, which can solve the problems that service requirements cannot be met or the load of a 4G network is heavy in the process of interoperation of the 5G network and the 4G network. As shown in fig. 5, the method includes:

s501, the terminal equipment sends a measurement report to the access network equipment. Correspondingly, the access network device receives the measurement report from the terminal device.

The measurement report is used for indicating the access network equipment to fall back to the 4G network.

It should be noted that, when the terminal device satisfies the triggering condition of the interoperability, the terminal device sends a measurement report to the access network device. The triggering condition of the interoperation may be an overlay-based condition or a voice-based condition.

S502, the access network equipment determines a service to be dropped in at least one service of the terminal equipment.

The service to be dropped is the service to be dropped to the 4G network.

S503, the access network equipment generates second indication information.

The second indication information is used for indicating the service to be dropped.

S504, the access network equipment sends second indication information.

The application provides a communication interoperation method, which generates and sends second indication information for indicating a service to be dropped through access network equipment, so that terminal equipment can selectively drop part of the service according to the second indication information, thereby avoiding that some service which cannot be carried in a 4G network drops back to the 4G network, and further ensuring the continuity of the service and the stability of the 4G network as much as possible.

In a possible implementation manner, S504 may be applied to both scenes of scene 1 and scene 2. Scene 1 and scene 2 are described in detail below, respectively.

Scene 1, redirect scene.

In scenario 1, S504 may be specifically: the access network device sends the second indication information to the terminal device. Correspondingly, the terminal equipment receives second indication information from the access network equipment.

Scene 2, switching scene.

In scenario 2, S504 may be specifically: the access network device sends second indication information to the AMF. Accordingly, the AMF receives the second indication information from the access network device.

In a possible implementation manner, in connection with fig. 5, as shown in fig. 6, S503 to S504 may be specifically determined by the following S601 to S602.

S601, the access network equipment generates second indication information and RRC Release information; the RRC Release information is used for bearing second indication information;

s602, the access network equipment sends RRC Release information to the terminal equipment. Correspondingly, the terminal equipment receives the RRC Release information from the access network equipment.

Note that, the second instruction information may also be carried in the steps S103 to S104 described above.

The communication interoperation method provided by the application can be applied to a redirection scene, and in the scene, the access network equipment needs to carry the second indication information in the RRC Release information, so that the terminal equipment can selectively fall back part of the services according to the second indication information, the situation that some services which cannot be carried in the 4G network fall back to the 4G network is avoided, and further the continuity of the services and the stability of the 4G network are ensured as much as possible.

In a possible implementation manner, in connection with fig. 5, as shown in fig. 7, S503-S504 may be specifically determined by the following S701 to S702.

S701, the access network device generates second instruction information and Handover Required information.

Wherein the Handover Required information is used to carry the second indication information.

S702, the access network equipment sends mobility from E-UTRA command information to the AMF. Accordingly, the AMF receives mobility from E-UTRA command information from the access network device.

Wherein the mobility from E-UTRA command information is used to carry the second indication information.

Note that, the second instruction information may also be carried in the steps S203 to S214.

The communication interoperation method provided by the application can be applied to a switching scene, and in the scene, the access network equipment needs to carry the second indication information in the RRC Release information, so that the terminal equipment can selectively fall back part of the services according to the second indication information, the situation that some services which cannot be carried in the 4G network fall back to the 4G network is avoided, and further the continuity of the services and the stability of the 4G network are ensured as much as possible.

In a possible implementation manner, as shown in fig. 8 in conjunction with fig. 5, the specific implementation process of S502 may include the following S801 to S802.

S801, the access network equipment acquires the preconfiguration information of each service in at least one service of the terminal equipment.

The pre-configuration information is used for indicating network bearing conditions of the service.

The pre-configuration information includes traffic information carried in 4G and 5G, traffic information carried in only 5G, and non-configuration traffic information.

S802, the access network equipment determines a service to be dropped from at least one service according to the pre-configuration information.

The pre-configuration information of the service to be dropped is service information carried in 4G and 5G or service information without configuration.

For example, when the terminal is in the 5G network and is performing the 5QI3 service and the 5QI9 service in slice 1, the service to be dropped is determined according to the pre-configuration information of the 5QI3 service and the pre-configuration information of the 5QI9 service. If the pre-configuration information of the 5QI3 service is the service information carried in 4G and 5G, and the pre-configuration information of the 5QI9 service is the service information carried in 5G only, the 5QI3 service is dropped.

In this scenario, the indication information of the fallback 5QI3 service needs to be added to the RRC Release information in the redirection procedure in conjunction with the flow shown in fig. 6. In this scenario, the instruction information of the fallback 5QI3 service needs to be added to the mobility from E-UTRA command information in the handover process in combination with the flow shown in fig. 7.

Also exemplary, when the terminal is in the 5G network and is performing the 5QI3 service and the 5QI9 service in slice 1, the service to be dropped is determined according to the pre-configuration information of the 5QI3 service and the pre-configuration information of the 5QI9 service. If the pre-configuration information of the 5QI3 service is the service information only carried by 5G, and the pre-configuration information of the 5QI9 service is the service information carried by 4G and 5G, only the 5QI9 service is dropped.

In this scenario, the indication information of the fallback 5QI9 service needs to be added to the RRC Release information in the redirection procedure in conjunction with the flow shown in fig. 6. In this scenario, the instruction information of the fallback 5QI9 service needs to be added to the mobility from E-UTRA command information in the handover process in combination with the flow shown in fig. 7.

Also exemplary, when the terminal is in the 5G network, the 5QI3 service and the 5QI9 service in the slice 1 and the 5QI9 service in the slice 2 are ongoing, the service to be dropped is determined according to the respective preconfiguration information of the 5QI3 service and the 5QI9 service in the slice 1 and the 5QI9 service in the slice 2. If the pre-configuration information of the 5QI3 service in the slice 1 and the pre-configuration information of the 5QI9 service in the slice 2 are the service information only carried in the 5G, and the pre-configuration information of the 5QI9 service in the slice 1 is the non-configuration service information, the 5QI9 service in the slice 1 is dropped.

In this scenario, the indication information of the 5QI9 service in the fallback slice 1 needs to be added to the RRC Release information in the redirection procedure in conjunction with the flow shown in fig. 6. In this scenario, the procedure shown in fig. 7 is combined, and the indication information of the 5QI9 service in the fallback slice 1 needs to be added to the mobility from E-UTRA command information in the handover procedure.

The access network equipment acquires the preconfiguration information of the service needing to be moved, and determines the service to be dropped according to the preconfiguration information of the service, so that the terminal equipment can selectively drop part of the service in the subsequent moving process, the condition that some service which cannot be carried in the 4G network drops back to the 4G network is avoided, and further the continuity of the service and the stability of the 4G network are ensured as much as possible.

It will be appreciated that the above-described communications interoperation method may be implemented by a communications interoperation device. The communication interoperation device includes a hardware structure and/or a software module for performing the above functions. Those of skill in the art will readily appreciate that the various illustrative modules and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments.

The disclosed embodiments of the present application may divide functional modules according to the communication interoperation device generated by the above method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated modules may be implemented in hardware or in software functional modules. It should be noted that, in the embodiment disclosed in the present application, the division of the modules is merely a logic function division, and other division manners may be implemented in actual practice.

Fig. 9 is a schematic structural diagram of a communication interoperation device according to an embodiment of the present invention. As shown in fig. 9, the communication interoperation device 90 may be used to perform the communication interoperation methods shown in fig. 5-8. The communication interoperation device 90 includes a communication unit 901, a processing unit 902.

A communication unit 901 for receiving a measurement report from a terminal device; the measurement report is used for indicating the access network equipment to fall back to the fourth-generation 4G network.

A processing unit 902, configured to determine a service to be dropped in at least one service of the terminal device; the service to be dropped is the service to be dropped to the 4G network.

The processing unit 902 is further configured to generate second indication information, where the second indication information is used to indicate the service to be dropped.

The communication unit 901 is further configured to send second indication information.

In the case of implementing the functions of the integrated modules in the form of hardware, another possible structural schematic diagram of the electronic device (including the first network device and the second network device) related to the foregoing embodiment is provided in the embodiment of the present invention. As shown in fig. 10, an electronic device 100 is provided, for example, for performing the communication interoperation methods shown in fig. 5-8. The electronic device 100 includes a processor 1001, a memory 1002, and a bus 1003. The processor 1001 and the memory 1002 may be connected by a bus 1003.

The processor 1001 is a control center of the communication device, and may be one processor or a collective term of a plurality of processing elements. For example, the processor 1001 may be a general-purpose central processing unit (central processing unit, CPU), or may be another general-purpose processor. Wherein the general purpose processor may be a microprocessor or any conventional processor or the like.

As one example, the processor 1001 may include one or more CPUs, such as CPU 0 and CPU 1 shown in fig. 10.

The memory 1002 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (random access memory, RAM) or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), magnetic disk storage or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.

As a possible implementation, the memory 1002 may exist separately from the processor 1001, and the memory 1002 may be connected to the processor 1001 through a bus 1003 for storing instructions or program code. The processor 1001 can implement the method for determining rich media provided by the embodiment of the present invention when calling and executing the instructions or program codes stored in the memory 1002.

In another possible implementation, the memory 1002 may be integrated with the processor 1001.

Bus 1003 may be an industry standard architecture (Industry Standard Architecture, ISA) bus, an external device interconnect (Peripheral Component Interconnect, PCI) bus, or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, among others. The bus may be classified as an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in fig. 10, but not only one bus or one type of bus.

It should be noted that the structure shown in fig. 10 does not constitute a limitation of the electronic apparatus 100. In addition to the components shown in fig. 10, the electronic device 100 may include more or less components than shown, or certain components may be combined, or a different arrangement of components.

Optionally, as shown in fig. 10, the electronic device 100 provided in the embodiment of the present invention may further include a communication interface 1004.

Communication interface 1004 is used for connecting with other devices through a communication network. The communication network may be an ethernet, a radio access network, a wireless local area network (wireless local area networks, WLAN), etc. The communication interface 1004 may include a receiving unit for receiving data, and a transmitting unit for transmitting data.

In one design, the electronic device provided in the embodiment of the present invention may further include a communication interface integrated in the processor.

Fig. 11 shows another hardware structure of an electronic device (including a first device and a second device) in an embodiment of the present invention. As shown in fig. 11, the electronic device 110 may include a processor 1101 and a communication interface 1102. The processor 1101 is coupled to a communication interface 1102.

The function of the processor 1101 may be as described above with reference to the processor 1101. The processor 1101 also has a memory function, and the memory 1102 can be referred to as a function.

The communication interface 1102 is used to provide data to the processor 1101. The communication interface 1102 may be an internal interface of the communication device or an external interface of the communication device (corresponding to the communication interface 1104).

It should be noted that the structure shown in fig. 11 does not constitute a limitation of the electronic device 110, and the electronic device 110 may include more or less components than those shown in fig. 11, or may combine some components, or may be a different arrangement of components.

From the above description of embodiments, it will be apparent to those skilled in the art that the foregoing functional unit divisions are merely illustrative for convenience and brevity of description. In practical applications, the above-mentioned function allocation may be performed by different functional units, i.e. the internal structure of the device is divided into different functional units, as needed, to perform all or part of the functions described above. The specific working processes of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which are not described herein.

The embodiment of the invention also provides a computer readable storage medium, wherein the computer readable storage medium stores instructions, when the computer executes the instructions, the computer executes each step in the method flow shown in the method embodiment.

Embodiments of the present invention provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of determining rich media of the method embodiments described above.

The computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: electrical connections having one or more wires, portable computer diskette, hard disk. Random access Memory (Random Access Memory, RAM), read-Only Memory (ROM), erasable programmable Read-Only Memory (Erasable Programmable Read Only Memory, EPROM), registers, hard disk, optical fiber, portable compact disc Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any other form of computer-readable storage medium suitable for use by a person or persons of skill in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an application specific integrated circuit (Application Specific Integrated Circuit, ASIC). In embodiments of the present invention, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

Since the apparatus, device, computer readable storage medium, and computer program product in the embodiments of the present invention can be applied to the above-mentioned method, the technical effects that can be obtained by the apparatus, device, computer readable storage medium, and computer program product can also refer to the above-mentioned method embodiments, and the embodiments of the present invention are not described herein again.

The present invention is not limited to the above embodiments, and any changes or substitutions within the technical scope of the present invention should be covered by the scope of the present invention.

Claims (11)

1. A method of communication interoperation, comprising:

the access network equipment receives a measurement report from the terminal equipment; the measurement report is used for indicating the access network equipment to fall back to the terminal equipment towards a fourth-generation 4G network;

the access network equipment acquires the preconfiguration information of each service in at least one service of the terminal equipment; the pre-configuration information is used for indicating the network bearing condition of the service; the pre-configuration information comprises service information loaded on 4G and 5G, service information loaded on 5G only and non-configuration service information;

the access network equipment determines a service to be dropped from the at least one service according to the pre-configuration information; the pre-configuration information of the service to be dropped is service information carried in 4G and 5G or service information without configuration; the service to be dropped is a service to be dropped to the 4G network;

The access network equipment generates second indication information, wherein the second indication information is used for indicating the service to be dropped;

and the access network equipment sends the second indication information.

2. The method according to claim 1, wherein the measurement report is used to instruct the access network device to redirect the terminal device to the 4G network;

the access network device generates second indication information, including: the access network equipment generates the second indication information and radio resource control Release RRC Release information; the RRC Release information is used for bearing the second indication information;

the access network device sending the second indication information, including:

and the access network equipment sends the RRC Release information to the terminal equipment.

3. The method according to claim 1, wherein the measurement report is used to instruct the access network device to handover the terminal device to the 4G network;

the access network device generates second indication information, including: the access network equipment generates the second indication information and switching requirement Handover Required information; wherein the Handover Required information is used for bearing the second indication information;

The access network device sending the second indication information, including:

the access network equipment sends mobility from E-UTRA command information to an access and mobility management function AMF; the mobility from E-UTRA command information is used for bearing the second indication information.

4. A method of communication interoperation, comprising:

the terminal equipment sends a measurement report to the access network equipment; the measurement report is used for indicating the access network equipment to redirect the terminal equipment to a fourth generation 4G network;

the terminal equipment receives the RRC Release information from the access network equipment; the RRC Release information is configured to carry second indication information, where the second indication information is configured to indicate a service to be dropped, where the service to be dropped is determined by the access network device based on preconfiguration information of each service in at least one service of the terminal device, where the preconfiguration information is configured to indicate a network carrying condition of the service, and the preconfiguration information of the at least one service includes service information carried in 4G and 5G, service information carried in only 5G, and service information without configuration, and the preconfiguration information of the service to be dropped is service information carried in 4G and 5G, or service information without configuration.

5. A method of communication interoperation, comprising:

the access and mobility management function AMF receives second indication information; the second indication information is used for indicating a service to be dropped, the service to be dropped is determined by the access network equipment based on the preconfiguration information of each service in at least one service of the terminal equipment, the preconfiguration information is used for indicating the network bearing condition of the service, the preconfiguration information of the at least one service comprises service information borne by 4G and 5G, service information borne by 5G only and service information without configuration, and the preconfiguration information of the service to be dropped is service information borne by 4G and 5G or service information without configuration;

the AMF sends a pre-migration request Forward Relocation Request message to an Evolved Packet Core (EPC);

the AMF receives forward migration response Forward Relocation Response information from the EPC.

6. The method according to claim 5, characterized in that a measurement report is used to instruct the access network device to handover the terminal device to the 4G network;

the terminal device receives second indication information, including: the terminal equipment receives the switching requirement Handover Required information from the access network equipment; wherein the Handover Required information is used for bearing the second indication information.

7. A communications interoperation device, comprising: a communication unit and a processing unit;

the communication unit is used for receiving the measurement report from the terminal equipment; the measurement report is used for indicating the access network equipment to fall back the terminal equipment to the fourth-generation 4G network;

the communication unit is further configured to obtain pre-configuration information of each service in at least one service of the terminal device; the pre-configuration information is used for indicating the network bearing condition of the service; the pre-configuration information comprises service information loaded on 4G and 5G, service information loaded on 5G only and non-configuration service information;

the processing unit is used for determining a service to be dropped from the at least one service according to the pre-configuration information; the pre-configuration information of the service to be dropped is service information carried in 4G and 5G or service information without configuration; the service to be dropped is a service to be dropped to the 4G network;

the processing unit is further configured to generate second indication information, where the second indication information is used to indicate the service to be dropped;

the communication unit is further configured to send the second indication information.

8. A communications interoperation device, comprising: a communication unit and a processing unit;

The processing unit is used for indicating the communication unit to send a measurement report to access network equipment; the measurement report is used for indicating the access network equipment to redirect the terminal equipment to the 4G network;

the processing unit is configured to instruct the communication unit to receive RRC Release information from the access network device; the RRC Release information is configured to carry second indication information, where the second indication information is configured to indicate a service to be dropped, where the service to be dropped is determined by the access network device based on preconfiguration information of each service in at least one service of the terminal device, where the preconfiguration information is configured to indicate a network carrying condition of the service, and the preconfiguration information of the at least one service includes service information carried in 4G and 5G, service information carried in only 5G, and service information without configuration, and the preconfiguration information of the service to be dropped is service information carried in 4G and 5G, or service information without configuration.

9. A communications interoperation device, comprising: a communication unit and a processing unit;

the processing unit is used for indicating the communication unit to receive second indication information; the second indication information is used for indicating a service to be dropped, the service to be dropped is determined by the access network equipment based on the preconfiguration information of each service in at least one service of the terminal equipment, the preconfiguration information is used for indicating the network bearing condition of the service, the preconfiguration information of the at least one service comprises service information borne by 4G and 5G, service information borne by 5G only and service information without configuration, and the preconfiguration information of the service to be dropped is service information borne by 4G and 5G or service information without configuration;

The processing unit is configured to instruct the communication unit to send a pre-migration request Forward Relocation Request information to the EPC;

the processing unit is configured to instruct the communication unit to receive forward migration response Forward Relocation Response information from the EPC.

10. A communications interoperation device, comprising: a processor and a communication interface; the communication interface is coupled to the processor for running a computer program or instructions to implement a communication interoperation method as claimed in any of claims 1-6.

11. A computer readable storage medium having instructions stored therein, wherein when executed by a computer, the computer performs the method of communication interoperation of any of claims 1-6.