WO2022083411A1

WO2022083411A1 - Method and device for determining error type of secondary cell switching

Info

Publication number: WO2022083411A1
Application number: PCT/CN2021/120778
Authority: WO
Inventors: 王睿炜; 刘爱娟
Original assignee: 大唐移动通信设备有限公司
Priority date: 2020-10-19
Filing date: 2021-09-26
Publication date: 2022-04-28
Also published as: CN114390640B; CN114390640A

Abstract

The embodiments of the present disclosure provide a method and device for determining an error type of secondary cell switching. The method is applied to a first secondary node and comprises: receiving reference information sent by a master node, the reference information comprising target information and/or auxiliary determination information, the target information being information of a secondary cell group that is acquired by the master node for re-establishing multi-RAT dual connectivity (MR-DC) after a secondary cell group failure occurs, and the auxiliary determination information being used for determining an error type of secondary cell switching under an MR-DC scenario; and according to the reference information, determining the error type of secondary cell switching under the MR-DC scenario, the first secondary node being one of the secondary nodes involved during the process of secondary cell switching, and the secondary cell switching including secondary cell switching within the secondary node and secondary cell switching between the secondary nodes. Therefore, in the embodiments of the present disclosure, after an SCG failure occurs, an error type of secondary cell switching can be determined.

Description

Method and device for determining error type of secondary cell change

CROSS-REFERENCE TO RELATED APPLICATIONS

This disclosure claims the priority of the Chinese patent application with the application number "202011121606.2" and titled "Method and Apparatus for Determining Error Types of Secondary Cell Transformation" filed with the Chinese Patent Office on October 19, 2020, the entire contents of which are by reference Incorporated in this disclosure.

The present disclosure claims the priority of the Chinese patent application with the application number "202110397114.4" and titled "Method and Apparatus for Determining Error Types of Secondary Cell Transformation" filed with the Chinese Patent Office on April 13, 2021, the entire contents of which are by reference Incorporated in this disclosure.

technical field

The present disclosure relates to the field of mobile communication technologies, and in particular, to a method and device for determining an error type of secondary cell conversion.

Background technique

In a multi-RAT Dual Connectivity (MR-DC) scenario, if the relevant parameters of the secondary cell group (SCG) are not properly configured, the SCG may fail. When an SCG failure occurs, the UE sends an SCG failure message to the network under the master node (Master Node, MN), and the MN forwards the SCG failure message to the failed secondary node (Secondary Node, SN). SN transforms error types to optimize parameter configuration.

Among them, in the MR-DC scenario, there are too early switching, too late switching and switching to the wrong cell. However, in some SCG failure scenarios, the SN cannot trigger the establishment of the subsequent MR-DC, and can only be triggered by the MN. Therefore, when the SN receives the SCG failure indication message, it cannot judge the error type of the secondary cell changeover, that is, it cannot judge whether to change over too early, change too late, or change to the wrong cell.

SUMMARY OF THE INVENTION

The embodiments of the present disclosure provide a method and device for determining an error type of secondary cell conversion, so that after an SCG failure occurs, the error type of secondary cell conversion can be determined.

In a first aspect, an embodiment of the present disclosure provides a method for determining an error type of secondary cell conversion, which is applied to a first secondary node, where the first secondary node is one of the secondary nodes involved in the secondary cell conversion process, The secondary cell conversion includes secondary cell conversion within secondary nodes and secondary cell conversion between secondary nodes; the method includes:

Receive reference information sent by the master node, where the reference information includes target information and/or auxiliary decision information, and the target information is the re-establishment of multiple radio access technology connections MR obtained by the master node after a secondary cell group failure occurs - information of the secondary cell group of the DC, the auxiliary decision information is used to determine the error type of the secondary cell conversion in the MR-DC scenario;

According to the reference information, the error type of the secondary cell conversion in the MR-DC scenario is determined.

Optionally, the target information includes at least one of the following;

Re-establish the identity information of the secondary node to which the secondary cell group of the MR-DC belongs;

The identification information of the primary and secondary cells in the secondary cell group of the MR-DC is re-established.

Optionally, the auxiliary decision information includes at least one of the following:

context information of the user equipment where the failure of the secondary cell group occurs;

History information of the user equipment where the failure of the secondary cell group occurs.

Optionally, when the reference information includes the auxiliary decision information, determining, according to the reference information, an error type of the secondary cell conversion in the MR-DC scenario, including:

According to the auxiliary decision information, determine the information of re-establishing the MR-DC auxiliary cell group;

According to the information of re-establishing the MR-DC secondary cell group, the error type of the secondary cell conversion in the MR-DC scenario is determined.

Optionally, the receiving reference information sent by the master node includes:

receiving a secondary cell group failure indication message sent by the master node, wherein the secondary cell group failure indication message carries the reference information;

or

Receive a first message sent by the master node, where the first message carries the reference information, and the first message is a process of re-establishing an MR-DC in a user equipment where the secondary cell group failure occurs , the message sent by the primary node to the first secondary node;

or

Receive a second message sent by the master node, where the second message carries the reference information, and the second message is added during the process of re-establishing the MR-DC by the user equipment that fails the secondary cell group news;

or

Receive a third message sent by the master node, where the third message carries the reference information, and the third message is added after the user equipment in which the secondary cell group failure has completed the MR-DC establishment information;

or

Receive a fourth message sent by the master node, where the fourth message carries the reference information, and the fourth message is a message added before the user equipment in which the secondary cell group fails to re-establish the MR-DC information.

Optionally, before determining the error type of the secondary cell transition in the MR-DC scenario according to the reference information, the method further includes:

receiving the first moment when the secondary cell group failure occurs and sent by the master node;

The determining, according to the reference information, the error type of the secondary cell conversion in the MR-DC scenario, including:

In the case that the time interval from the first time to the second time is less than or equal to a pre-acquired time threshold, determine the error type of the secondary cell conversion in the MR-DC scenario according to the reference information;

Wherein, the second time is the time when the first secondary node receives the reference information.

Receive the secondary cell group failure indication message sent by the master node, and determine the moment when the secondary cell group failure indication message is received as the third moment;

When the time interval from the third time to the second time is less than or equal to a pre-acquired time threshold, determine the error type of the secondary cell conversion in the MR-DC scenario according to the reference information;

Optionally, the error type of the secondary cell change includes at least one of the following:

Premature secondary node switching, too late secondary node switching, secondary node switching to wrong cell, premature primary and secondary cell switching, too late primary and secondary cell switching, primary and secondary cell switching to wrong cell.

Optionally, the first secondary node is a source secondary node or a target secondary node.

In a second aspect, the embodiments of the present disclosure further provide a method for determining an error type of secondary cell conversion, which is applied to the master node, where the secondary cell conversion includes secondary cell conversion within secondary nodes and secondary cell conversion between secondary nodes; The methods described include:

After the secondary cell group fails, the primary node acquires reference information, where the reference information includes target information and/or auxiliary decision information, and the target information is the re-establishment of multiple wireless connections acquired by the primary node. The information of the secondary cell group connected to the MR-DC by the incoming technology, the auxiliary decision information is used to determine the error type of the secondary cell conversion in the MR-DC scenario;

sending the reference information to at least one secondary node involved in the secondary cell conversion process, so that at least one secondary node involved in the secondary cell conversion process determines the secondary node in the MR-DC scenario according to the reference information Error type of cell change.

Optionally, the master node obtains reference information, including:

The master node acquires the reference information when receiving the failure information of the secondary cell group sent by the user equipment through the air interface.

Optionally, the sending the reference information to at least one secondary node involved in the secondary cell conversion process includes:

The reference information is sent to at least one secondary node involved in the secondary cell conversion process through the XN interface or the X2 interface.

Optionally, the target information includes at least one of the following;

carrying the reference information in the secondary cell group failure indication message, and sending it to the secondary node where the secondary cell group failure occurs;

or

Carry the reference information in a first message, and send it to at least one secondary node involved in the secondary cell change process, where the first message sent to the first secondary node is the user who fails in the secondary cell group In the process of re-establishing the MR-DC by the device, the message sent by the master node to the first secondary node, where the first secondary node is any one of the at least one secondary node;

or

In the process of re-establishing the MR-DC by the user equipment in which the secondary cell group failure occurs, a second message is added, the reference information is carried in the second message, and sent to the secondary cell involved in the conversion process. at least one secondary node of ;

or

After the user equipment in which the secondary cell group fails completes the MR-DC re-establishment, a third message is added, the reference information is carried in the third message, and sent to those involved in the secondary cell conversion process. at least one secondary node;

or

Before the user equipment in which the secondary cell group fails to re-establish the MR-DC, a fourth message is added, the reference information is carried in the fourth message, and sent to at least one involved in the secondary cell change process. a secondary node.

Optionally, the method further includes:

Send the first time to at least one secondary node involved in the secondary cell conversion process, where the first time is the time when the secondary cell group failure occurs.

Optionally, the at least one secondary node involved in the secondary cell conversion process includes at least one of a source secondary node and a target secondary node.

In a third aspect, an embodiment of the present disclosure further provides a network device, which is applied to a first secondary node, where the first secondary node is one of the secondary nodes involved in the secondary cell conversion process, and the secondary cell conversion includes the internal The secondary cell conversion of the secondary cell and the secondary cell conversion between secondary nodes;

The network device includes a memory, a transceiver, and a processor:

The memory is used to store a computer program; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations:

Controlling the transceiver to receive reference information sent by the master node, wherein the reference information includes target information and/or auxiliary decision information, and the target information is obtained by the master node to re-establish multiple wireless networks after a failure of the secondary cell group occurs. The information of the secondary cell group connected to the MR-DC by the access technology, and the auxiliary decision information is used to determine the error type of the secondary cell conversion in the MR-DC scenario;

Optionally, the target information includes at least one of the following;

or

Receive a fourth message sent by the master node, where the fourth message carries the reference information, and the fourth message is the value added before the user equipment that fails the secondary cell group re-establishes the MR-DC. information.

Optionally, before the processor determines, according to the reference information, the error type of the secondary cell conversion in the MR-DC scenario, the transceiver is further configured to:

The processor determines, according to the reference information, the error type of the secondary cell conversion in the MR-DC scenario, including:

Optionally, before the processor determines, according to the reference information, the error type of the secondary cell conversion in the MR-DC scenario, the processor is further configured to:

Controlling the transceiver to receive the secondary cell group failure indication message sent by the master node, and determining the moment when the secondary cell group failure indication message is received as the third moment;

In a fourth aspect, an embodiment of the present disclosure further provides a network device, which is applied to a master node involved in a secondary cell conversion process, where the secondary cell conversion includes secondary cell conversion within secondary nodes and secondary cell conversion between secondary nodes;

The network device includes a memory, a transceiver, and a processor:

After the secondary cell group fails, the secondary node controls the primary node to obtain reference information, wherein the reference information includes target information and/or auxiliary decision information, and the target information is the re-establishment of multiple wireless radios obtained by the primary node. The information of the secondary cell group connected to the MR-DC by the access technology, and the auxiliary decision information is used to determine the error type of the secondary cell conversion in the MR-DC scenario;

controlling the transceiver to send the reference information to at least one secondary node involved in the secondary cell switching process, so that at least one secondary node involved in the secondary cell switching process determines MR-DC according to the reference information The error type of the secondary cell change in the scenario.

Optionally, the master node obtains reference information, including:

Optionally, the target information includes at least one of the following;

or

Optionally, the processor is also used for:

The transceiver is controlled to send a first moment to at least one secondary node involved in the secondary cell conversion process, where the first moment is the moment when a secondary cell group failure occurs.

In a fifth aspect, an embodiment of the present disclosure further provides an apparatus for determining an error type of secondary cell conversion, which is applied to a first secondary node, where the first secondary node is one of the secondary nodes involved in the secondary cell conversion process, The secondary cell conversion includes secondary cell conversion within secondary nodes and secondary cell conversion between secondary nodes; the apparatus includes:

The first receiving module is configured to receive the reference information sent by the master node, wherein the reference information includes target information and/or auxiliary decision information, and the target information is the re-establishment multi-location information obtained by the master node after the failure of the secondary cell group occurs. information of the secondary cell group connected to the MR-DC by a radio access technology, and the auxiliary decision information is used to determine the error type of the secondary cell conversion in the MR-DC scenario;

A determination module, configured to determine, according to the reference information, an error type of the secondary cell conversion in the MR-DC scenario.

In a sixth aspect, the embodiments of the present disclosure further provide an apparatus for determining an error type of secondary cell conversion, which is applied to a master node, where the secondary cell conversion includes secondary cell conversion within secondary nodes and secondary cell conversion between secondary nodes; The device includes:

an information acquisition module, configured to control the primary node to acquire reference information after a secondary cell group failure occurs at the secondary node, wherein the reference information includes target information and/or auxiliary decision information, and the target information is the primary node The acquired information of the secondary cell group for re-establishing multiple radio access technologies connected to the MR-DC, and the auxiliary decision information is used to determine the error type of the secondary cell conversion in the MR-DC scenario;

a first sending module, configured to send the reference information to at least one secondary node involved in the secondary cell conversion process, so that at least one secondary node involved in the secondary cell conversion process determines the MR according to the reference information - Error type of the secondary cell change in DC scenario.

In a seventh aspect, an embodiment of the present disclosure provides a system for determining an error type of secondary cell change, including the network device described in the third aspect and the network device described in the fourth aspect.

In an eighth aspect, an embodiment of the present disclosure provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, and the computer program is configured to cause the processor to execute any one of the foregoing Methods.

In a ninth aspect, an embodiment of the present disclosure provides a computer program, including computer-readable code, which, when the computer-readable code is executed on a computing and processing device, causes the computing and processing device to execute the method described in the first aspect above. method, or perform the method according to the second aspect above.

In a tenth aspect, an embodiment of the present disclosure provides a computer-readable medium, in which the computer program described in the ninth aspect is stored.

In the embodiment of the present disclosure, in the scenario of secondary cell switching within a secondary node or secondary cell switching between secondary nodes, after an SCG failure occurs, the MN will obtain reference information, and send the reference information to the secondary cell switching process. Involved at least one SN, so that the SN can determine the error type of the secondary cell conversion in the MR-DC scenario according to the reference information, wherein the reference information includes target information and/or auxiliary decision information, and the target information is after a secondary cell group failure occurs , the information of the secondary cell group for re-establishing multiple radio access technologies connected to the MR-DC obtained by the master node, and the auxiliary decision information is used to determine the error type of the secondary cell conversion in the MR-DC scenario. It can be seen that, in the embodiment of the present disclosure, after an SCG failure occurs, the MN will transmit the SCG information for re-establishing the MR-DC and/or the auxiliary decision information for judging the error type of the secondary cell conversion in the MR-DC scenario, to transmit To at least one SN involved in the secondary cell conversion process, so that the SN can determine the error type of secondary cell conversion in the MR-DC scenario. Determine the type of error.

The above description is only an overview of the technical solutions of the present disclosure. In order to understand the technical means of the present disclosure more clearly, it can be implemented according to the contents of the description, and in order to make the above-mentioned and other purposes, features and advantages of the present disclosure more obvious and easy to understand , the following specific embodiments of the present disclosure are given.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present disclosure more clearly, the following briefly introduces the drawings that are used in the description of the embodiments of the present disclosure. Obviously, the drawings in the following description are only some embodiments of the present disclosure. , for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative labor.

Fig. 1 is the MR-DC control plane architecture diagram of UE connected to 5GC;

Figure 2 is a flow chart of SN change;

Figure 3 is a flowchart of a late SNchange;

Figure 4 is one of the flow charts of premature SN change;

Figure 5 is the second flow chart of premature SN change;

FIG. 6 is a flowchart of steps of a method for determining an error type of a secondary cell change applied to a first secondary node according to an embodiment of the present disclosure;

FIG. 7 is a flowchart of steps of a method for judging an error type of a secondary cell change applied to a master node according to an embodiment of the present disclosure;

FIG. 8 is a structural block diagram of an apparatus for determining an error type of a secondary cell change applied to a first secondary node according to an embodiment of the present disclosure;

FIG. 9 is a structural block diagram of an apparatus for determining an error type of a secondary cell change applied to a master node according to an embodiment of the present disclosure;

10 is a structural block diagram of a network device provided by an embodiment of the present disclosure;

Figure 11 schematically shows a block diagram of a computing processing device for performing methods according to the present disclosure; and

Figure 12 schematically shows a storage unit for holding or carrying program code implementing the method according to the present disclosure.

specific embodiment

In order to make the purposes, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments These are some, but not all, embodiments of the present disclosure. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure.

In the embodiments of the present disclosure, the term "and/or" describes the association relationship of associated objects, and indicates that there can be three kinds of relationships. For example, A and/or B can indicate that A exists alone, A and B exist at the same time, and B exists alone these three situations. The character "/" generally indicates that the associated objects are an "or" relationship.

In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work, all belong to the scope of protection of this application.

The embodiments of the present application provide a method and device for determining the error type of the secondary cell conversion, so as to realize the determination of the error type of the secondary cell conversion after an SCG failure occurs.

The method and the device are conceived based on the same application. Since the principles of the method and the device for solving the problem are similar, the implementation of the device and the method can be referred to each other, and repeated descriptions will not be repeated here.

In addition, the technical solutions provided in the embodiments of the present application may be applicable to various systems, especially 5G systems. For example, the applicable system may be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) general packet Wireless service (general packet radio service, GPRS) system, long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD) system, Long term evolution advanced (LTE-A) system, universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) system, 5G New Radio (New Radio, NR) system, etc. These various systems include terminal equipment and network equipment. The system may also include a core network part, such as an evolved packet system (Evloved Packet System, EPS), a 5G system (5GS), and the like.

The terminal device involved in the embodiments of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing device connected to a wireless modem. In different systems, the name of the terminal device may be different. For example, in the 5G system, the terminal device may be called user equipment (User Equipment, UE). Wireless terminal equipment can communicate with one or more core networks (Core Network, CN) via a radio access network (Radio Access Network, RAN). "telephone) and computers with mobile terminal equipment, eg portable, pocket-sized, hand-held, computer-built or vehicle-mounted mobile devices, which exchange language and/or data with the radio access network. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (Personal Digital Assistants), PDA) and other devices. Wireless terminal equipment may also be referred to as system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point , a remote terminal device (remote terminal), an access terminal device (access terminal), a user terminal device (user terminal), a user agent (user agent), and a user device (user device), which are not limited in the embodiments of the present application.

The network device involved in the embodiments of the present application may be a base station, and the base station may include a plurality of cells providing services for the terminal. Depending on the specific application, the base station may also be called an access point, or may be a device in the access network that communicates with wireless terminal equipment through one or more sectors on the air interface, or other names. The network device can be used to exchange received air frames with Internet Protocol (IP) packets, and act as a router between the wireless terminal device and the rest of the access network, which can include the Internet. Protocol (IP) communication network. The network devices may also coordinate attribute management for the air interface. For example, the network device involved in the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in the Global System for Mobile Communications (GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA). ), it can also be a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or it can be an evolved network device in a long term evolution (LTE) system (evolutional Node B, eNB or e-NodeB), 5G base station (gNB) in 5G network architecture (next generation system), or Home evolved Node B (HeNB), relay node (relay node) , a home base station (femto), a pico base station (pico), etc., which are not limited in the embodiments of the present application. In some network structures, a network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be geographically separated.

One or more antennas can be used between the network device and the terminal device for multi-input multi-output (MIMO) transmission. The MIMO transmission can be single-user MIMO (Single User MIMO, SU-MIMO) or multi-user MIMO. (Multiple User MIMO, MU-MIMO). According to the form and number of root antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or diversity transmission, precoding transmission, or beamforming transmission.

In order to facilitate the understanding of the method for determining the error type of the secondary cell change provided by the present application, the following contents are first introduced.

The first aspect is about Multi-connectivity (MC):

In a multi-connectivity architecture, the UE may be connected to one MN, and one or more SNs, and perform signaling and/or data interaction with these network nodes. Both the MN and SN nodes may be Long Term Evolution (Long Term Evolution, LTE) or Enhanced Long Term Evolution (e-LTE) or New Radio (New Radio, NR) nodes. When there is one MN node and one SN node, it can be called dual connection (DC). The schematic diagram of the dual connection is shown in FIG. 1 . NG-C in Figure 1 is the NG interface control plane, Xn-C is the Xn interface control plane, and Uu is the interface between the UE and the 5G access network.

When the UE is in a connected state, it can be connected to one or more network nodes, and the network nodes can be in one or more multiple radio access technologies (Radio Access Technology, RAT). For example, when MN is LTE node and SN is NR node, it is (NG)EN-DC dual connection; when MN is NR node and SN is LTE node, it is NE-DC dual connection; when MN and SN are both NR node, it is NR-NR-DC.

In the second aspect, regarding the air interface SCG failure information (SCG failure information) message:

Radio Link Failure (RLF) is divided into two types: Master Cell Group (MCG) and SCG. If a radio link failure occurs in the MCG, the UE triggers the RRC connection re-establishment process. If the SCG fails, the UE sends a message to the MN. The node sends the SCG failure information message. The SCG is a serving cell group under the SN node under the MR-DC, including a primary and secondary cell (PSCell) and possibly one or more secondary cells (Scells). Under the MCG is the MR-DC, the serving cell group under the MN node.

Among them, the role of the SCG failure information is to notify the MN node of the radio link failure, synchronization reconfiguration failure, SCG configuration failure on signaling bearer 3 (SRB3) and SCG integrity check failure information that occurs at the SN node.

In addition, the failureType in the SCG failure information records the failure type of the SCG, and the measResult records the measurement result reported by the UE according to the measurement configuration of the current MN and SN.

In the third aspect, the process of SN change (SN change):

The SN change process can be triggered by the MN or SN, transferring the context of the UE from the source SN to the target SN, and at the same time changing the SCG configuration from the source SN to the target SN on the UE side. As shown in Figure 2, it is the SN change process triggered by the MN in the EN-DC scenario.

It can be seen from FIG. 2 that the process of steps 201 to 202 is that the MN triggers the SN change process, and sends a secondary node (SgNB) add message to the target SN to request resource allocation; the process of step 203 is that the MN triggers the SgNB delete message to the source SN. , request the source SN to stop sending data to the UE; the process of step 204 to step 205 is that the MN configures the UE to perform a new configuration; step 206 is that the MN notifies the target SN that the configuration is completed; the process of step 207 is that the UE performs randomization on the target SN. Access; the process of step 208 is that the MN releases the configuration of the source SN.

In the fourth aspect, regarding the late SN change under MR-DC: after the UE has been accessing a cell of an SN for a long period of time, an SCG failure occurs, and the MN decides that the UE establishes a wireless connection under a different SN. , a late SN change occurs. Specifically, as shown in FIG. 3 , after a long period of time after the establishment of the MR-DC, if an SCG failure occurs in the source SN (ie, the S-SN), the UE will send the SCG failure information message to the MN (ie, step 301 ). ), then the MN sends an SCG failure indication message to the S-SN (ie, step 302), and the MN triggers the subsequent SN change process (ie, steps 303 to 310).

That is, if the time interval between the time when the UE accesses the S-SN and the time when the SCG occurs in the S-SN is greater than the first preset time period, the UE has undergone a late secondary node change.

The fifth aspect, regarding premature SN change under MR-DC:

When the SCG failure occurs during the process of the UE changing from the access source SN to the target SN, or the SCG failure occurs within a short period of time after the UE accesses the target SN, the MN decides that the UE re-establishes a wireless connection under the source SN. connection, a premature SN change occurs. It can be seen that there are two different situations for premature SN change as follows:

Scenario 1: The UE accesses the target SN successfully but the SCG fails within a short period of time, and the MN decides that the UE re-establishes a wireless connection under the source SN. Specifically, as shown in Figure 4, the SN change is successful (ie, steps 401 to 408), and soon after the SCG failure occurs in the target SN (ie, T-SN), the UE sends an SCG failure information message to the MN (ie, step 408). 409), then the MN sends an SCG failure indication message to the T-SN (i.e., step 410), so that the MN triggers the SN change to re-establish the MR-DC at the S-SN.

Case 2: Premature handover Another scenario is failure to access the T-SN, and the MN decides that the UE re-establishes a wireless connection under the S-SN. Specifically, as shown in FIG. 5 , steps 501 to 508 are SN change procedures, and in step 507, the UE fails to randomly access the T-SN. Then in step 509, the UE will send the SCG failure information message to the MN, so that the MN sends the SCG failure indication message to the S-SN in step 510, because the SCG failure information message may contain the measurement result of the S-SN, and then the The MN triggers the SN change to re-establish the MR-DC at the S-SN.

That is, if the time interval between the time when the UE accesses the T-SN and the time when the SCG occurs in the T-SN is less than or equal to the first preset time period, and the UE re-accesses the S-SN, the UE has a premature assist. Node switching; or, if the UE fails to access the T-SN and re-accesses the S-SN, the UE undergoes a premature secondary node switching.

The sixth aspect, regarding the SN change under MR-DC to the wrong cell:

If the SCG failure occurs during the process of the UE changing from the access source SN to the target SN, or the SCG failure occurs within a short period of time after the UE accesses the target SN, the MN decides that the UE will re-locate the UE to a location that does not belong to the source SN. If a wireless connection is established with other SN cells of the target SN, the SN change to the wrong cell occurs.

The flow chart of the SN change to the wrong cell is similar to the flow chart of the premature SN change described in the fourth aspect above, except that the last step is to trigger the SN change for the MN, and the selected SN is neither S-SN nor T-SN.

That is, if the time interval between the moment when the UE accesses the T-SN and the moment when the SCG occurs in the T-SN is less than or equal to the first preset duration, and the UE is in other If the UE re-accesses in the SN, the secondary node of the UE changes to the wrong cell; or, if the UE fails to access the T-SN, and the UE re-accesses in other SNs except the S-SN and T-SN, the UE A secondary node transition to the wrong cell occurs.

Similarly, if the time interval between the start time when the UE accesses the source primary and secondary cells and the time when the SCG occurs in the source primary and secondary cells is greater than the second preset time period, the UE will undergo a late primary and secondary cell change.

If the time interval between the start time when the UE accesses the target primary and secondary cell and the time when the SCG occurs in the target primary and secondary cell is less than or equal to the second preset duration, and the UE re-accesses the source primary and secondary cell, the UE occurs prematurely Primary and secondary cell switching; or, if the UE fails to access the target primary and secondary cell and re-accesses the source primary and secondary cell, the UE performs premature primary and secondary cell switching.

If the time interval between the time when the UE accesses the target primary and secondary cell and the time when the SCG occurs in the target primary and secondary cell is less than or equal to the second preset time period, and the UE is in a location other than the source primary and secondary cell and the target primary and secondary cell If the UE fails to access the target primary and secondary cells, and the UE fails to access the target primary and secondary cells, and the UE is in other primary and secondary cells except the source primary and secondary cells and the target primary and secondary cells If the UE re-accesses in the SN, the UE changes from the primary and secondary cells to the wrong cell.

Fig. 6 shows a schematic flowchart of a method for determining an error type of secondary cell change provided by an embodiment of the present disclosure. The method is applied to a first secondary node, where the first secondary node is one of the secondary nodes involved in the secondary cell conversion process, and the secondary cell conversion includes secondary cell conversion within secondary nodes and secondary cells between secondary nodes transform.

As shown in Figure 6, the method may include the following steps:

Step 601: Receive the reference information sent by the master node.

Wherein, the reference information includes target information and/or auxiliary decision information, and the target information is information obtained by the master node for re-establishing a secondary cell group connected to the MR-DC with multiple radio access technologies after a secondary cell group failure occurs , the auxiliary decision information is used to determine the error type of the secondary cell conversion in the MR-DC scenario.

It should be noted here that the auxiliary decision information is the reference information for determining the re-establishment of the SCG of the MR-DC, and after the information of the SCG of the MR-DC is determined to be re-established, the information of the SCG of the MR-DC can be re-established according to the information. Determine the error type of the secondary cell change in the MR-DC scenario. Therefore, in the embodiment of the present disclosure, the auxiliary decision information is used to determine the error type of the secondary cell transition in the MR-DC scenario.

In addition, if the SCG failure is detected by the UE, when the UE detects the SCG failure, it will notify the MN and inform the MN which SN has the SCG failure. Wherein, after learning that the SCG failure occurs, the MN acquires the information of the SCG for re-establishing the MR-DC and/or the auxiliary decision information for determining the error type of the secondary cell change in the MR-DC scenario. That is, the MN can choose to re-establish the SCG of the MR-DC after obtaining the SCG failure; it can also send the auxiliary decision information to the first auxiliary node, so that the first auxiliary node can choose to re-establish the MR according to the auxiliary decision information. -DC's SCG.

Step 602: According to the reference information, determine the error type of the secondary cell conversion in the MR-DC scenario.

Wherein, when the reference information includes target information, the SN can determine the error type of the current secondary cell conversion according to the target information included in the reference information, so as to optimize the configuration parameters according to the error type.

That is, when the reference information includes auxiliary decision information, the SN can select the SCG for re-establishing the MR-DC according to the auxiliary decision information included in the reference information, and then determine the current SCG according to the selected SCG for re-establishing the MR-DC. The error type of the secondary cell transformation, thereby optimizing the configuration parameters according to the error type.

It can be seen from the above that in the embodiment of the present disclosure, in the scenario of secondary cell change within a secondary node or a secondary cell change between secondary nodes, after an SCG failure occurs, the MN will acquire reference information, and send the reference information to the secondary cell. At least one SN involved in the cell change process, so that the SN can determine the error type of the secondary cell change in the MR-DC scenario according to the reference information, where the reference information includes target information and/or auxiliary decision information, and the target information is the occurrence auxiliary After the failure of the cell group, the master node obtains the information of re-establishing the secondary cell group connected to the MR-DC with multiple radio access technologies, and the auxiliary decision information is used to determine the error type of the secondary cell conversion in the MR-DC scenario. It can be seen that, in the embodiment of the present disclosure, after an SCG failure occurs, the MN will transmit the SCG information for re-establishing the MR-DC and/or the auxiliary decision information for judging the error type of the secondary cell conversion in the MR-DC scenario, to transmit To at least one SN involved in the secondary cell conversion process, so that the SN can determine the error type of secondary cell conversion in the MR-DC scenario. Determine the type of error.

Among them, for the situations of early secondary node switching, too late secondary node switching, secondary node switching to the wrong cell, premature primary and secondary cell switching, too late primary and secondary cell switching, and primary and secondary cell switching to the wrong cell, adjustments need to be made. The relevant decision threshold parameters enable the secondary cell change to occur at the right moment and to select the correct target SN.

Optionally, the target information includes at least one of the following;

Among them, in the process of judging various secondary cell conversion error types, when an SCG failure occurs, the SN involved in the secondary cell conversion process cannot yet judge the error type, that is, it cannot determine whether the conversion is too early, too late, or converted to wrong cell. Similar to the traditional handover MRO function, the type of handover failure needs to be judged according to the re-established cell ID, and the SN must also know the SN information selected by the subsequent re-established MR-DC. In some scenarios where the SCG fails, the SN cannot trigger the establishment of the subsequent MR-DC, and can only be triggered by the MN. Then the MN can send the subsequent selection information to the SN, for example, for the secondary cell change between SNs (ie, SN change), the MN can inform the SN, whether to establish an MR-DC in the S-SN, T-SN or other SN in the future. The auxiliary SN performs the judgment of the error type of the secondary cell change.

Among them, the UE history information is a list of information such as cells that the UE has stayed on recorded in chronological order. Each node in the list contains information such as the cell and time where the UE has stayed/accessed. The network device and the UE will maintain their own information. UE history information, the content is similar but there are some differences.

In the 3GPP R17 version, the content of the SN is added to the traditional UE history information, mainly including the PSCell and the corresponding access time. The primary serving cell (PCell) and PSCell information should be related, that is, it can reflect the PCell and PSCell cells and time information that the UE accesses at the same time, and the historical information content of the UE recorded in the past can be referred to in the process of PSCell selection.

Optionally, the first secondary node is a source secondary node or a target node secondary node, that is, after an SCG failure occurs, the MN may send the information of re-establishing the SCG of the MR-DC to the source secondary node involved in the secondary cell conversion process. and at least one of the target secondary node.

or

As can be seen from the above, before or during the process of re-establishing the MR-DC, the reference information can be carried in the existing messages in the interaction process between the MN and the SN. For example, in FIG. 3, the MN should send the reference information. When giving the S-SN, the reference information can be carried in one of the SCG failure indication information, the SgNB release request, and the UE context release; it can also be before the user equipment that fails the secondary cell group re-establishes the MR-DC or During the process of re-establishing the MR-DC or after the MR-DC is re-established, a new message is added to send the reference information separately. For example, in FIG. 3, when the MN wants to send the reference information to the S-SN, it can add a new message before step 303. message, or a new message is added between steps 303 and 310, or a new message is added after step 310, so that the reference information is carried in the added message and sent to the S-SN.

That is, when the MN sends the reference information to the SN, the re-established MR-DC may not be established yet, may be being established, or may have been established.

It should be noted here that when the above reference information includes the target message and the auxiliary decision information, the target message and the auxiliary decision information may be carried in one message and sent, or may be carried in different messages and sent separately.

It can be seen from the above that, in the embodiment of the present disclosure, the SN receiving the reference information can perform the assistance only when the time interval between the moment when the SCG failure occurs and the moment when the SN receiving the reference information receives the reference information is less than or equal to a certain threshold. The judgment of the error type of the cell change, otherwise it means that the SN receives the reference information late, that is, the received reference information is invalid, then the error type of the secondary cell change will not be judged this time, so it will not be based on the secondary cell change this time. Error type for parameter optimization.

Wherein, regardless of whether the SN receiving the reference information is the SN with SCG failure, the MN can explicitly notify the time of the SCG failure, that is, directly send the time of the SCG failure to the SN that needs to receive the reference information. In addition, the time when the SCG failure occurs may be sent together with the reference information, or may be sent separately.

It should be noted here that the above-mentioned time threshold is the maximum time interval between the time when the SCG failure occurs and the time when the SN receives the reference information. Among them, in the embodiment of the present disclosure, the method for obtaining the time threshold is not specifically limited: for example, the user can set the specific value of the time threshold on the MN side, and then the MN informs the SN, or the user directly sets the time threshold on the SN side. The specific value of the time threshold, or you can set the time threshold to take a default value.

Among them, it can be pre-agreed that when the UE detects the SCG failure, it immediately sends the SCG failure information message to the MN, thereby triggering the MN to immediately send the SCG failure indication information to the SN where the SCG failure occurs. The interval between the times when the SN with the SCG failure has received the SCG failure indication information is very short. Therefore, when the MN sends the reference information to the SN with the SCG failure, the SN with the SCG failure can receive the SCG failure indication information. The time is taken as the time of SCG failure, so that it can be directly judged whether the time interval between the time when it receives the SCG failure indication information and the time when it receives the reference information is less than the pre-acquired time threshold. Therefore, when the SN that receives the reference information is the SN where the SCG failure occurs, the time of the SCG failure can be implicitly notified.

FIG. 7 shows a schematic flowchart of another method for determining an error type of secondary cell change provided by an embodiment of the present disclosure. The method is applied to the master node, and the secondary cell switching includes secondary cell switching within the secondary node and secondary cell switching between secondary nodes.

As shown in Figure 7, the method may include the following steps:

Step 701: After a secondary cell group failure occurs on the secondary node, the primary node obtains reference information.

Wherein, the reference information includes target information and/or auxiliary decision information, the target information is information obtained by the master node for re-establishing a secondary cell group connected to the MR-DC with multiple radio access technologies, and the auxiliary decision information The information is used to determine the error type of the secondary cell transition in the MR-DC scenario.

Step 702: Send the reference information to at least one secondary node involved in the secondary cell conversion process, so that at least one secondary node involved in the secondary cell conversion process determines the MR-DC scenario according to the reference information. The error type of the secondary cell change.

When the reference information includes auxiliary decision information, the SN may select the SCG for re-establishing the MR-DC according to the auxiliary decision information included in the reference information, and then determine the current auxiliary decision according to the selected SCG for re-establishing the MR-DC. Error type for cell transformation, thereby optimizing configuration parameters according to the error type.

Optionally, the target information includes at least one of the following;

Among them, in the process of judging various secondary cell conversion error types, when an SCG failure occurs, the SN involved in the secondary cell conversion process cannot yet judge the error type, that is, it cannot determine whether the conversion is too early, too late, or converted to wrong cell. Similar to the traditional handover MRO function, the type of handover failure needs to be judged according to the re-established cell ID, and the SN must also know the SN information selected by the subsequently re-established MR-DC. In some scenarios where the SCG fails, the SN cannot trigger the establishment of the subsequent MR-DC, and can only be triggered by the MN. Then the MN can send the subsequent selection information to the SN, for example, for the secondary cell change between SNs (ie, SN change), the MN can inform the SN, whether to establish an MR-DC in the S-SN, T-SN or other SN in the future. The auxiliary SN performs the judgment of the error type of the secondary cell change.

Optionally, the at least one secondary node involved in the secondary cell conversion process includes at least one of a source secondary node and a target secondary node. That is, after the SCG failure occurs, the MN may send the information of re-establishing the SCG of the MR-DC to at least one of the source secondary node and the target secondary node involved in the secondary cell change process.

Optionally, the master node obtains reference information, including:

That is, when the MN receives the SCG failure information sent by the UE, the MN can be triggered to obtain the SCG information for re-establishing the MR-DC and/or the auxiliary decision information for determining the error type of the secondary cell change in the MR-DC scenario, so that the MN can The information is sent to at least one secondary node involved in the secondary cell change process.

That is, the reference information may be sent to at least one secondary node involved in the secondary cell conversion process through the XN interface or the X2 interface.

or

As can be seen from the above, before or during the process of re-establishing the MR-DC, the reference information can be carried in the existing messages in the interaction process between the MN and the SN. For example, in FIG. 3, the MN should send the reference information. When giving the S-SN, the reference information can be carried in one of the SCG failure indication information, the SgNB release request, and the UE context release; it can also be before or during the re-establishment of the MR-DC or during the re-establishment of the MR-DC. After the establishment of the MR-DC is completed, a new message is added to send the reference information separately. For example, in FIG. 3, when the MN wants to send the reference information to the S-SN, a new message can be added before step 303, or between steps 303 and 310. A new message is added, or a new message is added after step 310, so that the reference information is carried in the added message and sent to the S-SN.

Optionally, the method further includes:

The SN that receives the first moment is the same as the SN that receives the reference information, that is, in the embodiment of the present disclosure, to which SNs the MN needs to send the reference information, it can send the first moment to which SNs.

In addition, after the SN receives the first time and the reference information, the SN will determine that the time interval between the first time and the time when the reference information is received is less than or equal to the pre-acquired time threshold. If so, it will determine the MR-DC scenario based on the reference information. The error type of the lower secondary cell change.

To sum up, the specific implementation of the method for determining the error type of the secondary cell change according to the embodiment of the present disclosure may be as follows:

Embodiment 1

In the case of a late SN change, referring to FIG. 3 , the MN sends an SCG failure indication message to the S-SN in step 302. The MN also needs to send the target information (that is, the information of the subsequently selected SCG for re-establishing the MR-DC) to the S-SN, and the target information may be added to the SCG failure indication message, or may be added to the existing other MNs to send to the S-SN. S-SN messages (eg, SgNB release request, release UE context message), or a new message is added to convey the information.

The MN can also send the auxiliary decision information to the S-SN, and the S-SN chooses to re-establish the SCG information of the MR-DC according to the auxiliary decision information. The auxiliary decision information includes the UE context information of the S-SN and/or the history information of the UE in which the SCG failure occurred.

Among them, since the UE context information still exists in the S-SN, the MN may not send the UE context information to the S-SN, but the UE history information in the S-SN may not be the latest version, so the MN needs to send the UE history information. Give S-SN.

The auxiliary decision information may be added to the SCG failure indication message, or may be added to existing messages sent by other MNs to the S-SN (eg, SgNB release request, release UE context message), or a new message may be added to convey this information.

The timing for the MN to send the target information and/or the auxiliary decision information to the S-SN may be immediately after receiving the SCG failure information, or may be sent during the re-establishment process of the MR-DC, or after the completion of the MR-DC Sent after DC re-establishment.

In addition, the SCG information of the re-established MR-DC may include information of the SN node to which the SCG of the re-established MR-DC belongs and/or the ID of the PSCell in the SCG of the re-established MR-DC.

In addition, after receiving the target information and/or the auxiliary decision information sent by the MN, the S-SN may also consider the temporal correlation when determining the error type of the secondary cell change according to the target information and/or the auxiliary decision information. That is, when the time when the SCG occurs is relatively close to the time when the S-SN receives the target information and/or the auxiliary decision information (that is, the time interval between the two is less than or equal to the pre-acquired time threshold), the S-SN can only use the target information according to the target information. and/or auxiliary decision information to determine the error type of the secondary cell changeover.

For example, in FIG. 3 , when the target information and/or the auxiliary decision information are carried in the SCG failure indication information in step 302 and sent to the S-SN, the time when the SCG information is sent in step 301 and the SCG failure indication information is sent in step 302 When the time between the two is relatively close (that is, less than or equal to the pre-acquired time threshold), it indicates that there is a correlation in time, and the S-SN can determine the error type of the secondary cell change according to the target information.

Embodiment 2

In a scenario of premature SN change, referring to Fig. 4, the MN sends an SCG failure indication message to the T-SN in step 410. The MN also needs to send the target information (that is, the information of the subsequently selected SCG for re-establishing the MR-DC) to the T-SN, which may be added in the SCG failure indication message, or may be added to the T-SN by other existing MNs. - SN message, or add a new message to convey the information.

The MN can also send the auxiliary decision information to the T-SN, and the T-SN chooses to re-establish the SCG information of the MR-DC according to the auxiliary decision information. The auxiliary decision information includes the UE context information of the S-SN and/or the history information of the UE in which the SCG failure occurred.

Among them, since the UE context information still exists in the T-SN, the MN may not send the UE context information to the T-SN, but the UE history information in the T-SN may not be the latest version, so the MN needs to send the UE history information. To T-SN.

The auxiliary decision information may be added in the SCG failure indication message, or may be added in a message sent by other existing MNs to the T-SN, or a new message may be added to convey the information.

The timing for the MN to send the target information and/or auxiliary decision information to the T-SN may be immediately after receiving the SCG failure information, or may be sent during the re-establishment process of the MR-DC, or after the completion of the MR-DC Sent after DC re-establishment.

In addition, after receiving the target information and/or auxiliary decision information sent by the MN, the T-SN may also consider the temporal correlation when determining the error type of the secondary cell change based on the target information and/or the auxiliary decision information. That is, when the time when the SCG occurs is relatively close to the time when the T-SN receives the target information and/or the auxiliary decision information (that is, the time interval between the two is less than the pre-acquired time threshold), the T-SN can only use the target information and/or Or the auxiliary decision information is used to determine the error type of the secondary cell changeover.

For example, in FIG. 4 , when the target information and/or auxiliary decision information is carried in the SCG failure indication information in step 410 and sent to the T-SN, the time when the SCG information is sent in step 409 is the same as the time when the SCG failure indication information is sent in step 410 When the time between the two is relatively close (that is, less than or equal to the pre-acquired time threshold), it means that there is a correlation in time, and the T-SN can determine the error of the secondary cell conversion according to the target information and/or the auxiliary decision information. type.

Embodiment 3

In another scenario of premature SN change, referring to FIG. 5 , in step 509, the MN receives the SCG failure information sent by the UE. Wherein, since the SCG failure information received by the MN may include the measurement result of the S-SN, the MN needs to send an SCG failure indication message to the S-SN.

In addition, the MN also needs to send the target information (that is, the information of the subsequently selected SCG for re-establishing the MR-DC) to the S-SN. This information may be added in the SCG failure indication message, or may be added in the existing other MNs. Message to the S-SN, or add a new message to convey the information.

Wherein, since the S-SN may have deleted the UE context information, the MN needs to send the UE context information to the S-SN. In addition, the UE history information in the S-SN may not be the latest version, so the MN also needs to send the UE history information to the S-SN.

The auxiliary decision information may be added in the SCG failure indication message, or may be added in a message sent by other existing MNs to the S-SN, or a new message may be added to convey the information. The auxiliary decision information is used to instruct the S-SN to select the SCG information for re-establishing the MR-DC.

The timing for the MN to send the target information and/or the auxiliary decision information to the S-SN may be immediately after receiving the SCG failure information, or may be sent during the re-establishment process of the MR-DC, or after the occurrence of the It is sent after the user equipment of the failed secondary cell group completes the MR-DC re-establishment.

In addition, after receiving the target information and/or the auxiliary decision information sent by the MN, the S-SN may also consider the temporal correlation when determining the error type of the secondary cell conversion according to the target information and/or the auxiliary decision information. That is, when the moment when the UE fails to randomly access the T-SN is relatively close to the moment when the S-SN receives the target information and/or the auxiliary decision information (that is, the time interval between the two is less than the pre-acquired time threshold), the S-SN The determination of the secondary cell change error type is performed according to the target information and/or the auxiliary decision information.

For example, in FIG. 5 , it may be pre-agreed that the failure time of the UE randomly accessing the T-SN is the time when the UE sends the SCG failure information, and the target information and/or auxiliary decision information are carried in the SCG failure indication information in step 510 and sent in the SCG failure indication information. When sending the S-SN, if the time when the SCG information is sent in step 509 and the time when the SCG failure indication information is sent in step 410 are relatively close (that is, less than or equal to the pre-acquired time threshold), it means that there is a correlation in time. If the S-SN is correct, the S-SN can determine the error type of the secondary cell change according to the target information and/or the auxiliary decision information.

Alternatively, the MN may notify the S-SN of the failure time of the UE's random access to the T-SN to the S-SN, for example, the MN transmits the failure time of the UE's random access to the T-SN to the S-SN on the XN or X2 interface. Then, when the failure time of the UE's random access to the T-SN received by the S-SN and the time when the target information and/or the auxiliary decision information are received are relatively close (that is, less than or equal to the pre-acquired time threshold), it is indicated that If there is a correlation in time, the S-SN can determine the error type of the secondary cell change according to the target information and/or the auxiliary decision information.

In addition, it should be noted that, for the scenario where the SN changes to the wrong cell, the MN sends the target information and/or the auxiliary decision information in the sending method and timing, after receiving the target information and/or the auxiliary decision information, according to the target information and/or the auxiliary decision information. The conditions for determining the error type of the secondary cell by the auxiliary decision information are similar to the two scenarios of premature SN change in the second and third embodiments. It is not repeated here.

It can be seen from the above that in the MR-DC scenario, if an SCG failure occurs, the SN involved in the secondary cell change process lacks some information when judging the SN change failure type. However, the embodiments of the present disclosure add reference information (including the above target information and/or auxiliary decision information) provided by the MN to the SN on the interface, so as to facilitate the SN to determine which error type it belongs to, thereby facilitating the optimization of configuration parameters.

The method for determining the error type of the secondary cell conversion provided by the embodiments of the present disclosure has been described above. The following describes the device for determining the error type of the secondary cell conversion provided by the embodiments of the present disclosure with reference to the accompanying drawings.

Referring to FIG. 8 , an embodiment of the present disclosure further provides an apparatus for determining an error type of secondary cell conversion, which is applied to a first secondary node, where the first secondary node is one of the secondary nodes involved in the secondary cell conversion process , the secondary cell conversion includes secondary cell conversion within secondary nodes and secondary cell conversion between secondary nodes; the apparatus includes:

The first receiving module 801 is configured to receive reference information sent by the master node, wherein the reference information includes target information and/or auxiliary decision information, and the target information is the re-establishment obtained by the master node after a failure of the secondary cell group occurs. Information about the secondary cell group connected to the MR-DC by multiple radio access technologies, and the auxiliary decision information is used to determine the error type of the secondary cell conversion in the MR-DC scenario;

The determining module 802 is configured to determine, according to the reference information, an error type of the secondary cell conversion in the MR-DC scenario.

Optionally, the target information includes at least one of the following;

Optionally, when the reference information includes the auxiliary decision information, the decision module 802 is specifically configured to:

Optionally, the first receiving module 801 is specifically configured to:

or

Optionally, the device further includes:

a first time information acquisition module, configured to receive the first moment when the secondary cell group failure occurs and is sent by the master node;

The determining module 802 is specifically used for:

Optionally, the device further includes:

a second time information acquisition module, configured to receive the secondary cell group failure indication message sent by the master node, and determine the moment when the secondary cell group failure indication message is received as the third moment;

The determining module 802 is specifically used for:

Referring to FIG. 9 , an embodiment of the present disclosure further provides an apparatus for determining an error type of secondary cell change, which is applied to a master node, where the secondary cell change includes a secondary cell change within a secondary node and a secondary cell change between secondary nodes; The device includes:

The information acquisition module 901 is used for the primary node to acquire reference information after a secondary cell group failure occurs in the secondary node, wherein the reference information includes target information and/or auxiliary decision information, and the target information is acquired by the primary node The information of the secondary cell group for re-establishing multiple radio access technologies connected to the MR-DC, the auxiliary decision information is used to determine the error type of the secondary cell conversion in the MR-DC scenario;

A first sending module 902, configured to send the reference information to at least one secondary node involved in the secondary cell conversion process, so that at least one secondary node involved in the secondary cell conversion process determines according to the reference information The error type of the secondary cell change in the MR-DC scenario.

Optionally, the information acquisition module 901 is specifically used for:

Optionally, the first sending module 902 is specifically configured to:

Optionally, the target information includes at least one of the following;

Optionally, the first sending module 902 is specifically configured to:

or

Carry the reference information in a first message, and send it to at least one secondary node involved in the secondary cell change process, where the first message sent to the first secondary node is the user who fails in the secondary cell group During the process of re-establishing the MR-DC by the device, the message sent by the master node to the first secondary node, where the first secondary node is any one of the at least one secondary node;

or

Optionally, the device further includes:

The second sending module is configured to send the first moment to at least one secondary node involved in the secondary cell conversion process, where the first moment is the moment when the secondary cell group failure occurs.

It should be noted that the division of units in the embodiments of the present application is illustrative, and is only a logical function division, and other division methods may be used in actual implementation. In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a processor-readable storage medium. Based on this understanding, the technical solutions of the present application can be embodied in the form of software products in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, and the computer software products are stored in a storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

It should be noted here that the above-mentioned device provided by the embodiment of the present disclosure can realize all the method steps realized by the above-mentioned method embodiment, and can achieve the same technical effect, and the same as the method embodiment in this embodiment is not repeated here. The parts and beneficial effects will be described in detail.

The embodiments of the present disclosure further provide a system for determining an error type of secondary cell change, including the above-mentioned network device applied to the first secondary node and the network device applied to the master node.

An embodiment of the present disclosure of the present invention further provides a network device, as shown in FIG. 10 , the network device includes a memory 1001, a transceiver 1002, and a processor 1003;

memory 1001 for storing computer programs;

A transceiver 1002 for receiving and transmitting data under the control of the processor 1003;

In the first aspect, when the above network device is applied to the first secondary node, the processor 1003 is configured to read the computer program in the memory 1001 and perform the following operations:

Control the transceiver 1002 to receive reference information sent by the master node, wherein the reference information includes target information and/or auxiliary decision information, and the target information is the re-establishment information obtained by the master node after the failure of the secondary cell group occurs. Information about the secondary cell group connected to the MR-DC by the radio access technology, and the auxiliary decision information is used to determine the error type of the secondary cell conversion in the MR-DC scenario;

According to the reference information, determine the error type of the secondary cell conversion in the MR-DC scenario;

The first secondary node is one of the secondary nodes involved in the secondary cell conversion process, and the secondary cell conversion includes secondary cell conversion within secondary nodes and secondary cell conversion between secondary nodes.

Optionally, the target information includes at least one of the following;

or

In the second aspect, when the above network device is applied to the master node involved in the secondary cell change process, the processor 1003 is configured to read the computer program in the memory 1001 and perform the following operations:

Controlling the transceiver 1002 to send the reference information to at least one secondary node involved in the secondary cell switching process, so that at least one secondary node involved in the secondary cell switching process determines MR- The error type of the secondary cell change in the DC scenario;

Wherein, the secondary cell conversion includes secondary cell conversion within secondary nodes and secondary cell conversion between secondary nodes.

Optionally, the master node obtains reference information, including:

Optionally, the target information includes at least one of the following;

or

Optionally, the processor 1003 is further configured to:

10, the bus architecture may include any number of interconnected buses and bridges, specifically, one or more processors represented by the processor 1003 and various circuits of the memory represented by the memory 1001 are linked together. The bus architecture can also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides the interface. Transceiver 1002 may be a number of elements, including transmitters and receivers, that provide means for communicating with various other devices over transmission media including wireless channels, wired channels, fiber optic cables, and the like. The processor 1003 is responsible for managing the bus architecture and general processing, and the memory 1001 may store data used by the processor 1001 in performing operations.

The processor 1003 can be a central processor (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (Complex Programmable Logic Device). , CPLD), the processor can also use a multi-core architecture.

Embodiments of the present disclosure further provide a processor-readable storage medium, where a computer program is stored in the processor-readable storage medium, and the computer program is used to cause the processor to perform an error type of secondary cell change method of determination.

The processor-readable storage medium can be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic storage (eg, floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (eg, CD, DVD, BD, HVD, etc.), and semiconductor memory (eg, ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state disk (SSD)), etc.

As will be appreciated by those skilled in the art, the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media having computer-usable program code embodied therein, including but not limited to disk storage, optical storage, and the like.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block in the flowcharts and/or block diagrams, and combinations of flows and/or blocks in the flowcharts and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to the processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing device to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing device produce Means for implementing the functions specified in a flow or flow of a flowchart and/or a block or blocks of a block diagram.

These processor-executable instructions may also be stored in a processor-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored in the processor-readable memory result in the manufacture of means including the instructions product, the instruction means implements the functions specified in the flow or flow of the flowchart and/or the block or blocks of the block diagram.

These processor-executable instructions can also be loaded onto a computer or other programmable data processing device to cause a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process that Execution of the instructions provides steps for implementing the functions specified in the flowchart or blocks and/or the block or blocks of the block diagrams.

The device embodiments described above are only illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in One place, or it can be distributed over multiple network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution in this embodiment. Those of ordinary skill in the art can understand and implement it without creative effort.

Various component embodiments of the present disclosure may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will understand that a microprocessor or a digital signal processor (DSP) may be used in practice to implement some or all of the functions of some or all of the components in a computing processing device according to embodiments of the present disclosure. The present disclosure can also be implemented as apparatus or apparatus programs (eg, computer programs and computer program products) for performing some or all of the methods described herein. Such a program implementing the present disclosure may be stored on a computer-readable medium, or may be in the form of one or more signals. Such signals may be downloaded from Internet sites, or provided on carrier signals, or in any other form.

For example, Figure 11 illustrates a computing processing device that can implement methods in accordance with the present disclosure. The computing processing device traditionally includes a processor 1110 and a computer program product or computer readable medium in the form of a memory 1120 . The memory 1120 may be electronic memory such as flash memory, EEPROM (Electrically Erasable Programmable Read Only Memory), EPROM, hard disk, or ROM. The memory 1120 has storage space 1130 for program code 1131 for performing any of the method steps in the above-described methods. For example, the storage space 1130 for program codes may include various program codes 1131 for implementing various steps in the above methods, respectively. These program codes can be read from or written to one or more computer program products. These computer program products include program code carriers such as hard disks, compact disks (CDs), memory cards or floppy disks. Such computer program products are typically portable or fixed storage units as described with reference to FIG. 12 . The storage unit may have storage segments, storage spaces, etc. arranged similarly to the memory 1120 in the computing processing device of FIG. 11 . The program code may, for example, be compressed in a suitable form. Typically, the storage unit includes computer readable code 1131', ie code readable by a processor such as 1110, for example, which, when executed by a computing processing device, causes the computing processing device to perform any of the methods described above. of the various steps.

Reference herein to "one embodiment," "an embodiment," or "one or more embodiments" means that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of the present disclosure. Also, please note that instances of the phrase "in one embodiment" herein are not necessarily all referring to the same embodiment.

In the description provided herein, numerous specific details are set forth. It is to be understood, however, that embodiments of the present disclosure may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present disclosure may be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, and third, etc. do not denote any order. These words can be interpreted as names.

Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

A method for judging an error type of secondary cell conversion, characterized in that it is applied to a first secondary node, where the first secondary node is one of the secondary nodes involved in the secondary cell conversion process, and the secondary cell conversion includes: Secondary cell switching within secondary nodes and secondary cell switching between secondary nodes; the method includes:

Receive reference information sent by the master node, where the reference information includes target information and/or auxiliary decision information, and the target information is the re-establishment of multiple radio access technology connections MR obtained by the master node after a secondary cell group failure occurs - information of the secondary cell group of the DC, the auxiliary decision information is used to determine the error type of the secondary cell conversion in the MR-DC scenario;

According to the reference information, the error type of the secondary cell conversion in the MR-DC scenario is determined.
The method for determining an error type of secondary cell conversion according to claim 1, wherein the target information includes at least one of the following;

Re-establish the identity information of the secondary node to which the secondary cell group of the MR-DC belongs;

The identification information of the primary and secondary cells in the secondary cell group of the MR-DC is re-established.
The method for judging the error type of secondary cell conversion according to claim 1, wherein the auxiliary judgment information includes at least one of the following:

context information of the user equipment where the failure of the secondary cell group occurs;

History information of the user equipment where the failure of the secondary cell group occurs.
The method for judging the error type of secondary cell conversion according to claim 1 or 3, wherein when the reference information includes the auxiliary decision information, the judgment is based on the reference information in the MR-DC scenario. The error type of the secondary cell change, including:

According to the auxiliary decision information, determine the information of re-establishing the MR-DC auxiliary cell group;

According to the information of re-establishing the MR-DC secondary cell group, the error type of the secondary cell conversion in the MR-DC scenario is determined.
The method for determining an error type of secondary cell conversion according to claim 1, wherein the receiving the reference information sent by the master node comprises:

receiving a secondary cell group failure indication message sent by the master node, wherein the secondary cell group failure indication message carries the reference information;

or

Receive a first message sent by the master node, where the first message carries the reference information, and the first message is a process of re-establishing an MR-DC in a user equipment where the secondary cell group failure occurs , the message sent by the primary node to the first secondary node;

or

Receive a second message sent by the master node, where the second message carries the reference information, and the second message is added during the process of re-establishing the MR-DC by the user equipment that fails the secondary cell group news;

or

Receive a third message sent by the master node, where the third message carries the reference information, and the third message is added after the user equipment in which the secondary cell group failure has completed the MR-DC establishment information;

or

Receive a fourth message sent by the master node, where the fourth message carries the reference information, and the fourth message is a message added before the user equipment in which the secondary cell group fails to re-establish the MR-DC information.
The method for determining the error type of the secondary cell transition according to claim 1, wherein before determining the error type of the secondary cell transition in the MR-DC scenario according to the reference information, the method further comprises: :

receiving the first moment when the secondary cell group failure occurs and sent by the master node;

The determining, according to the reference information, the error type of the secondary cell conversion in the MR-DC scenario, including:

In the case that the time interval from the first time to the second time is less than or equal to a pre-acquired time threshold, determine the error type of the secondary cell conversion in the MR-DC scenario according to the reference information;

Wherein, the second time is the time when the first secondary node receives the reference information.
The method for determining the error type of the secondary cell transition according to claim 1, wherein before determining the error type of the secondary cell transition in the MR-DC scenario according to the reference information, the method further comprises: :

Receive the secondary cell group failure indication message sent by the master node, and determine the moment when the secondary cell group failure indication message is received as the third moment;

The determining, according to the reference information, the error type of the secondary cell conversion in the MR-DC scenario, including:

When the time interval from the third time to the second time is less than or equal to a pre-acquired time threshold, determine the error type of the secondary cell conversion in the MR-DC scenario according to the reference information;

Wherein, the second time is the time when the first secondary node receives the reference information.
The method for determining an error type of secondary cell conversion according to claim 1, wherein the error type of secondary cell conversion includes at least one of the following:

Premature secondary node switching, too late secondary node switching, secondary node switching to wrong cell, premature primary and secondary cell switching, too late primary and secondary cell switching, primary and secondary cell switching to wrong cell.
The method for determining an error type of secondary cell conversion according to claim 1, wherein the first secondary node is a source secondary node or a target secondary node.
A method for judging error types of secondary cell switching, characterized in that it is applied to a master node, and the secondary cell switching includes secondary cell switching within secondary nodes and secondary cell switching between secondary nodes; the method includes:

After the secondary cell group fails, the primary node acquires reference information, where the reference information includes target information and/or auxiliary decision information, and the target information is the re-establishment of multiple wireless connections acquired by the primary node. The information of the secondary cell group connected to the MR-DC by the incoming technology, the auxiliary decision information is used to determine the error type of the secondary cell conversion in the MR-DC scenario;

sending the reference information to at least one secondary node involved in the secondary cell conversion process, so that at least one secondary node involved in the secondary cell conversion process determines the secondary node in the MR-DC scenario according to the reference information Error type of cell change.
The method for judging the error type of secondary cell conversion according to claim 10, wherein the acquisition of the reference information by the master node comprises:

The master node acquires the reference information when receiving the failure information of the secondary cell group sent by the user equipment through the air interface.
The method for determining an error type of secondary cell conversion according to claim 10, wherein the sending the reference information to at least one secondary node involved in the secondary cell conversion process comprises:

The reference information is sent to at least one secondary node involved in the secondary cell conversion process through the XN interface or the X2 interface.
The method for determining an error type of secondary cell conversion according to claim 10, wherein the target information includes at least one of the following:

Re-establish the identity information of the secondary node to which the secondary cell group of the MR-DC belongs;

The identification information of the primary and secondary cells in the secondary cell group of the MR-DC is re-established.
The method for judging an error type of secondary cell conversion according to claim 10, wherein the auxiliary judgment information includes at least one of the following:

context information of the user equipment where the failure of the secondary cell group occurs;

History information of the user equipment where the failure of the secondary cell group occurs.
The method for determining an error type of secondary cell conversion according to claim 10, wherein the sending the reference information to at least one secondary node involved in the secondary cell conversion process comprises:

carrying the reference information in the secondary cell group failure indication message, and sending it to the secondary node where the secondary cell group failure occurs;

or

Carry the reference information in a first message, and send it to at least one secondary node involved in the secondary cell change process, where the first message sent to the first secondary node is the user who fails in the secondary cell group In the process of re-establishing the MR-DC by the device, the message sent by the master node to the first secondary node, where the first secondary node is any one of the at least one secondary node;

or

In the process of re-establishing the MR-DC by the user equipment in which the secondary cell group failure occurs, a second message is added, the reference information is carried in the second message, and sent to the secondary cell involved in the conversion process. at least one secondary node of ;

or

After the user equipment in which the secondary cell group fails completes the MR-DC re-establishment, a third message is added, the reference information is carried in the third message, and sent to those involved in the secondary cell conversion process. at least one secondary node;

or

Before the user equipment in which the secondary cell group fails to re-establish the MR-DC, a fourth message is added, the reference information is carried in the fourth message, and sent to at least one involved in the secondary cell change process. a secondary node.
The method for determining the error type of secondary cell change according to claim 10, wherein the method further comprises:

Send the first time to at least one secondary node involved in the secondary cell conversion process, where the first time is the time when the secondary cell group failure occurs.
The method for determining an error type of secondary cell conversion according to claim 10, wherein the error type of secondary cell conversion includes at least one of the following:

Premature secondary node switching, too late secondary node switching, secondary node switching to wrong cell, premature primary and secondary cell switching, too late primary and secondary cell switching, primary and secondary cell switching to wrong cell.
The method for determining an error type of secondary cell conversion according to claim 10, wherein at least one secondary node involved in the secondary cell conversion process includes at least one of a source secondary node and a target secondary node.
A network device, characterized in that it is applied to a first secondary node, where the first secondary node is one of the secondary nodes involved in a secondary cell conversion process, and the secondary cell conversion includes secondary cell conversion and secondary cell conversion within the secondary node. Secondary cell change between nodes;

The network device includes a memory, a transceiver, and a processor:

The memory is used to store a computer program; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations:

Controlling the transceiver to receive reference information sent by the master node, wherein the reference information includes target information and/or auxiliary decision information, and the target information is obtained by the master node to re-establish multiple wireless networks after a failure of the secondary cell group occurs. The information of the secondary cell group connected to the MR-DC by the access technology, and the auxiliary decision information is used to determine the error type of the secondary cell conversion in the MR-DC scenario;

According to the reference information, the error type of the secondary cell conversion in the MR-DC scenario is determined.
The network device according to claim 19, wherein the target information includes at least one of the following;

Re-establish the identity information of the secondary node to which the secondary cell group of the MR-DC belongs;

The identification information of the primary and secondary cells in the secondary cell group of the MR-DC is re-established.
The network device according to claim 19, wherein the auxiliary decision information includes at least one of the following:

context information of the user equipment where the failure of the secondary cell group occurs;

History information of the user equipment where the failure of the secondary cell group occurs.
The network device according to claim 19 or 21, wherein when the reference information includes the auxiliary decision information, the error of the auxiliary cell conversion in the MR-DC scenario is determined according to the reference information. types, including:

According to the auxiliary decision information, determine the information of re-establishing the MR-DC auxiliary cell group;

According to the information of re-establishing the MR-DC secondary cell group, the error type of the secondary cell conversion in the MR-DC scenario is determined.
The network device according to claim 19, wherein the receiving the reference information sent by the master node comprises:

receiving a secondary cell group failure indication message sent by the master node, wherein the secondary cell group failure indication message carries the reference information;

or

Receive a first message sent by the master node, where the first message carries the reference information, and the first message is a process of re-establishing an MR-DC in a user equipment where the secondary cell group failure occurs , the message sent by the primary node to the first secondary node;

or

Receive a second message sent by the master node, where the second message carries the reference information, and the second message is added during the process of re-establishing the MR-DC by the user equipment that fails the secondary cell group news;

or

Receive a third message sent by the master node, where the third message carries the reference information, and the third message is added after the user equipment in which the secondary cell group failure has completed the MR-DC establishment information;

or

Receive a fourth message sent by the master node, where the fourth message carries the reference information, and the fourth message is a message added before the user equipment in which the secondary cell group fails to re-establish the MR-DC information.
The network device according to claim 19, wherein before the processor determines the error type of the secondary cell conversion in the MR-DC scenario according to the reference information, the transceiver is further configured to:

receiving the first moment when the secondary cell group failure occurs and sent by the master node;

The processor determines, according to the reference information, the error type of the secondary cell conversion in the MR-DC scenario, including:

In the case that the time interval from the first time to the second time is less than or equal to a pre-acquired time threshold, determine the error type of the secondary cell conversion in the MR-DC scenario according to the reference information;

Wherein, the second time is the time when the first secondary node receives the reference information.
The network device according to claim 19, wherein before the processor determines, according to the reference information, an error type of the secondary cell transition in the MR-DC scenario, the processor is further configured to:

Controlling the transceiver to receive the secondary cell group failure indication message sent by the master node, and determining the moment when the secondary cell group failure indication message is received as the third moment;

The determining, according to the reference information, the error type of the secondary cell conversion in the MR-DC scenario, including:

When the time interval from the third time to the second time is less than or equal to a pre-acquired time threshold, determine the error type of the secondary cell conversion in the MR-DC scenario according to the reference information;

Wherein, the second time is the time when the first secondary node receives the reference information.
A network device, characterized in that it is applied to a master node, and the secondary cell conversion includes secondary cell conversion within secondary nodes and secondary cell conversion between secondary nodes;

The network device includes a memory, a transceiver, and a processor:

The memory is used to store a computer program; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations:

After the secondary cell group fails, the secondary node controls the primary node to obtain reference information, wherein the reference information includes target information and/or auxiliary decision information, and the target information is the re-establishment of multiple wireless radios obtained by the primary node. The information of the secondary cell group connected to the MR-DC by the access technology, and the auxiliary decision information is used to determine the error type of the secondary cell conversion in the MR-DC scenario;

controlling the transceiver to send the reference information to at least one secondary node involved in the secondary cell switching process, so that at least one secondary node involved in the secondary cell switching process determines MR-DC according to the reference information The error type of the secondary cell change in the scenario.
The network device according to claim 25, wherein the master node obtains the reference information, comprising:

The master node acquires the reference information when receiving the failure information of the secondary cell group sent by the user equipment through the air interface.
The network device according to claim 25, wherein the target information includes at least one of the following;

Re-establish the identity information of the secondary node to which the secondary cell group of the MR-DC belongs;

The identification information of the primary and secondary cells in the secondary cell group of the MR-DC is re-established.
The network device according to claim 25, wherein the auxiliary decision information includes at least one of the following:

context information of the user equipment where the failure of the secondary cell group occurs;

History information of the user equipment where the failure of the secondary cell group occurs.
The network device according to claim 25, wherein the sending the reference information to at least one secondary node involved in the secondary cell conversion process comprises:

carrying the reference information in the secondary cell group failure indication message, and sending it to the secondary node where the secondary cell group failure occurs;

or

Carry the reference information in a first message, and send it to at least one secondary node involved in the secondary cell change process, where the first message sent to the first secondary node is the user who fails in the secondary cell group In the process of re-establishing the MR-DC by the device, the message sent by the master node to the first secondary node, where the first secondary node is any one of the at least one secondary node;

or

In the process of re-establishing the MR-DC by the user equipment in which the secondary cell group failure occurs, a second message is added, the reference information is carried in the second message, and sent to the secondary cell involved in the conversion process. at least one secondary node of ;

or

After the user equipment in which the secondary cell group fails completes the MR-DC re-establishment, a third message is added, the reference information is carried in the third message, and sent to those involved in the secondary cell conversion process. at least one secondary node;

or

Before the user equipment in which the secondary cell group fails to re-establish the MR-DC, a fourth message is added, the reference information is carried in the fourth message, and sent to at least one involved in the secondary cell change process. a secondary node.
The network device according to claim 25, wherein the processor is further configured to:

The transceiver is controlled to send a first time to at least one secondary node involved in the secondary cell conversion process, where the first time is a time when a secondary cell group failure occurs.
An apparatus for judging an error type of secondary cell conversion, characterized in that it is applied to a first secondary node, where the first secondary node is one of the secondary nodes involved in the secondary cell conversion process, and the secondary cell conversion includes: Secondary cell conversion within a secondary node and secondary cell conversion between secondary nodes; the apparatus includes:

The first receiving module is configured to receive reference information sent by the master node, wherein the reference information includes target information and/or auxiliary decision information, and the target information is the re-establishment multi-location information obtained by the master node after the failure of the secondary cell group occurs. information of the secondary cell group connected to the MR-DC by a radio access technology, and the auxiliary decision information is used to determine the error type of the secondary cell conversion in the MR-DC scenario;

A determination module, configured to determine, according to the reference information, an error type of the secondary cell conversion in the MR-DC scenario.
An apparatus for judging error types of secondary cell switching, characterized in that it is applied to a master node, and the secondary cell switching includes secondary cell switching within secondary nodes and secondary cell switching between secondary nodes; the apparatus includes:

an information acquisition module, configured to control the primary node to acquire reference information after a secondary cell group failure occurs at the secondary node, wherein the reference information includes target information and/or auxiliary decision information, and the target information is the primary node The acquired information of the secondary cell group for re-establishing multiple radio access technologies connected to the MR-DC, and the auxiliary decision information is used to determine the error type of the secondary cell conversion in the MR-DC scenario;

a first sending module, configured to send the reference information to at least one secondary node involved in the secondary cell conversion process, so that at least one secondary node involved in the secondary cell conversion process determines the MR according to the reference information - Error type of the secondary cell change in DC scenario.
A processor-readable storage medium, characterized in that the processor-readable storage medium stores a computer program, and the computer program is used to cause the processor to execute the method according to any one of claims 1 to 9, Or perform the method of any one of claims 10 to 18.
A computer program comprising computer readable code which, when executed on a computing processing device, causes the computing processing device to perform the method according to any one of claims 1 to 9, or to perform the method according to claim 1. The method of any one of claims 10 to 18.