CN114390640B

CN114390640B - Method and equipment for judging error type of secondary cell transformation

Info

Publication number: CN114390640B
Application number: CN202110397114.4A
Authority: CN
Inventors: 王睿炜; 刘爱娟
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2020-10-19
Filing date: 2021-04-13
Publication date: 2024-02-13
Anticipated expiration: 2041-04-13
Also published as: WO2022083411A1; CN114390640A

Abstract

The embodiment of the invention provides a method and equipment for judging the error type of secondary cell transformation. The method applied to the first auxiliary node comprises the following steps: receiving reference information sent by a main node, wherein the reference information comprises target information and/or auxiliary judgment information, the target information is information of an auxiliary cell group which is obtained by the main node and is used for reestablishing various wireless access technologies to be connected with MR-DC after the auxiliary cell group fails, and the auxiliary judgment information is used for judging the error type of auxiliary cell conversion under an MR-DC scene; judging the error type of the transformation of the auxiliary cell in the MR-DC scene according to the reference information; the first auxiliary node is one of auxiliary nodes involved in the auxiliary cell transformation process, and the auxiliary cell transformation comprises auxiliary cell transformation in the auxiliary nodes and auxiliary cell transformation among the auxiliary nodes. Therefore, in the embodiment of the invention, after the SCG failure occurs, the error type of the secondary cell transformation can be judged.

Description

Method and equipment for judging error type of secondary cell transformation

Technical Field

The present invention relates to the field of mobile communications technologies, and in particular, to a method and apparatus for determining an error type of secondary cell transformation.

Background

In a Multi-radio access technology connection (Multi-RAT Dual Connectivity, MR-DC) scenario, the relevant parameters of the secondary cell group (Secondary Cell group, SCG) may cause the SCG to fail if configured unreasonably. When the SCG failure occurs, the UE sends an SCG failure message to the network under a Master Node (MN), and the MN forwards the SCG failure message to a failed Secondary Node (SN), and the failed SN analyzes the SN conversion error type generated by the SCG failure, so that parameter configuration is optimized.

Wherein there is a premature transition, a too late transition and a transition to the wrong cell in the MR-DC scenario. However, SN has failed to trigger subsequent MR-DC establishment in some SCG failure scenarios, and can only be triggered by MN. Therefore, when the SN receives the SCG failure indication message, it cannot determine the secondary cell transition error type, i.e., whether to perform early transition, late transition, or transition to the wrong cell.

Disclosure of Invention

The embodiment of the invention provides a method and equipment for judging the error type of secondary cell transformation, which are used for judging the error type of secondary cell transformation after SCG failure occurs.

In a first aspect, an embodiment of the present invention provides a method for determining an error type of an auxiliary cell transformation, which is applied to a first auxiliary node, where the first auxiliary node is one of auxiliary nodes involved in the auxiliary cell transformation process, and the auxiliary cell transformation includes an auxiliary cell transformation in an auxiliary node and an auxiliary cell transformation between auxiliary nodes; the method comprises the following steps:

Receiving reference information sent by a main node, wherein the reference information comprises target information and/or auxiliary judgment information, the target information is information of an auxiliary cell group which is obtained by the main node and used for reestablishing various wireless access technologies to connect with MR-DC after the auxiliary cell group fails, and the auxiliary judgment information is used for judging the error type of the auxiliary cell transformation under an MR-DC scene;

and judging the error type of the transformation of the auxiliary cell in the MR-DC scene according to the reference information.

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

reestablishing the identification information of the auxiliary node to which the auxiliary 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 in which the secondary cell group failure occurs;

history information of the user equipment in which the secondary cell group failure occurs.

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

determining information for reestablishing the MR-DC auxiliary cell group according to the auxiliary judgment information;

And judging the error type of the transformation of the auxiliary cell in the MR-DC scene according to the information of the re-establishing MR-DC auxiliary cell group.

Optionally, the receiving the 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 alternatively

Receiving a first message sent by the master node, wherein the first message carries the reference information, and the first message is a message sent by the master node to the first auxiliary node in the process of reestablishing MR-DC by the user equipment with the failure of the auxiliary cell group;

or alternatively

Receiving a second message sent by the master node, wherein the second message carries the reference information, and the second message is added in the process of reestablishing MR-DC by the user equipment which fails to generate the secondary cell group;

or alternatively

Receiving a third message sent by the master node, wherein the third message carries the reference information, and the third message is added after the user equipment which fails to generate the secondary cell group completes the MR-DC establishment;

Or alternatively

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

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

receiving a first moment when the secondary cell group failure occurs, which is sent by the master node;

the determining the error type of the secondary cell transformation in the MR-DC scene according to the reference information comprises the following steps:

under the condition that the time interval from the first time to the second time is smaller than or equal to a time threshold value acquired in advance, determining the error type of the secondary cell transformation in an MR-DC scene according to the reference information;

the second time is the time when the first auxiliary node receives the reference information.

receiving a secondary cell group failure indication message sent by the master node, and determining the time of receiving the secondary cell group failure indication message as a third time;

under the condition that the time interval from the third time to the second time is smaller than or equal to a time threshold value acquired in advance, judging the error type of the secondary cell transformation in an MR-DC scene according to the reference information;

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

a premature secondary node transformation, a too late secondary node transformation, a secondary node transformation to an error cell, a premature primary-secondary cell transformation, a too late primary-secondary cell transformation, a primary-secondary cell transformation to an error cell.

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

In a second aspect, the embodiment of the present invention further provides a method for determining an error type of an auxiliary cell transformation, where the method is applied to a master node, and the auxiliary cell transformation includes an auxiliary cell transformation in an auxiliary node and an auxiliary cell transformation between auxiliary nodes; the method comprises the following steps:

after the auxiliary node fails in the auxiliary cell group, the main node acquires reference information, wherein the reference information comprises target information and/or auxiliary judgment information, the target information is information for reestablishing the auxiliary cell group connected with the MR-DC by a plurality of wireless access technologies, which is acquired by the main node, and the auxiliary judgment information is used for judging the error type of the auxiliary cell conversion in the MR-DC scene;

And sending the reference information to at least one auxiliary node involved in the auxiliary cell transformation process, so that the at least one auxiliary node involved in the auxiliary cell transformation process judges the error type of the auxiliary cell transformation in the MR-DC scene according to the reference information.

Optionally, the master node obtains reference information, including:

and when the master node receives the failure information of the secondary cell group sent by the user equipment through an air interface, acquiring the reference information.

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

and transmitting the reference information to at least one auxiliary node involved in the auxiliary cell transformation process through an XN interface or an X2 interface.

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

carrying the reference information in a secondary cell group failure indication message and sending the information to a secondary node which fails in the secondary cell group;

or alternatively

The reference information is carried in a first message and is sent to at least one auxiliary node involved in the transformation process of the auxiliary cell, wherein the first message sent to the first auxiliary node is a message sent by the main node to the first auxiliary node in the process of reestablishing MR-DC (magnetic resonance-direct current) of user equipment with failure of the auxiliary cell group, and the first auxiliary node is any one of the at least one auxiliary node;

or alternatively

Adding a second message in the process of reestablishing the MR-DC by the user equipment with the failure of the secondary cell group, carrying the reference information in the second message, and sending the second message to at least one secondary node involved in the secondary cell transformation process;

or alternatively

After the user equipment with the failure of the secondary cell group completes MR-DC reestablishment, adding a third message, carrying the reference information in the third message, and sending the reference information to at least one secondary node involved in the secondary cell transformation process;

Or alternatively

And adding a fourth message before the MR-DC is re-established by the user equipment with the failed secondary cell group, carrying the reference information in the fourth message, and sending the reference information to at least one secondary node involved in the secondary cell transformation process.

Optionally, the method further comprises:

and transmitting a first moment to at least one auxiliary node involved in the auxiliary cell transformation process, wherein the first moment is the moment when the auxiliary cell group failure occurs.

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

In a third aspect, an embodiment of the present invention further provides a network device, where the network device is applied to a first auxiliary node, where the first auxiliary node is one of auxiliary nodes involved in an auxiliary cell transformation process, and the auxiliary cell transformation includes auxiliary cell transformation in the auxiliary node and auxiliary cell transformation between the auxiliary nodes;

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

the memory is used for storing a computer program; the transceiver is used for receiving and transmitting data under the control of the processor; the processor is configured to read the computer program in the memory and perform the following operations:

controlling the transceiver to receive reference information sent by a main node, wherein the reference information comprises target information and/or auxiliary judgment information, the target information is information of an auxiliary cell group which is acquired by the main node and is used for reestablishing multiple wireless access technologies to connect with MR-DC after the auxiliary cell group fails, and the auxiliary judgment information is used for judging the error type of the auxiliary cell conversion under an MR-DC scene;

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

or alternatively

Or alternatively

or alternatively

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

the processor determines the error type of the secondary cell transformation in the MR-DC scene according to the reference information, and comprises the following steps:

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

controlling the transceiver to receive a secondary cell group failure indication message sent by the master node, and determining the time of receiving the secondary cell group failure indication message as a third time;

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

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

After the auxiliary node fails in the auxiliary cell group, the main node is controlled to acquire reference information, wherein the reference information comprises target information and/or auxiliary judgment information, the target information is information of the auxiliary cell group which is acquired by the main node and is used for reestablishing various wireless access technologies to connect with MR-DC, and the auxiliary judgment information is used for judging the error type of the auxiliary cell transformation under an MR-DC scene;

and controlling the transceiver to send the reference information to at least one auxiliary node involved in the auxiliary cell transformation process, so that the at least one auxiliary node involved in the auxiliary cell transformation process determines the error type of the auxiliary cell transformation in the MR-DC scene according to the reference information.

Optionally, the master node obtains reference information, including:

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

or alternatively

Or alternatively

Optionally, the processor is further configured to:

and controlling the transceiver to send a first moment to at least one auxiliary node involved in the auxiliary cell transformation process, wherein the first moment is a moment when the auxiliary cell group failure occurs.

In a fifth aspect, the embodiment of the present invention further provides a device for determining an error type of an auxiliary cell transformation, where the device is applied to a first auxiliary node, where the first auxiliary node is one of auxiliary nodes involved in the auxiliary cell transformation process, and the auxiliary cell transformation includes an auxiliary cell transformation in an auxiliary node and an auxiliary cell transformation between auxiliary nodes; the device comprises:

the first receiving module is used for receiving reference information sent by a main node, wherein the reference information comprises target information and/or auxiliary judgment information, the target information is information of an auxiliary cell group which is obtained by the main node and used for reestablishing multiple wireless access technologies to connect with MR-DC after the auxiliary cell group fails, and the auxiliary judgment information is used for judging the error type of the auxiliary cell transformation in an MR-DC scene;

And the judging module is used for judging the error type of the transformation of the auxiliary cell in the MR-DC scene according to the reference information.

In a sixth aspect, the embodiment of the present invention further provides a device for determining an error type of an auxiliary cell transformation, which is applied to a master node, where the auxiliary cell transformation includes an auxiliary cell transformation in an auxiliary node and an auxiliary cell transformation between auxiliary nodes; the device comprises:

the information acquisition module is used for controlling the main node to acquire reference information after the auxiliary node fails in the auxiliary cell group, wherein the reference information comprises target information and/or auxiliary judgment information, the target information is information for reestablishing the auxiliary cell group connected with the MR-DC by a plurality of wireless access technologies, which is acquired by the main node, and the auxiliary judgment information is used for judging the error type of the auxiliary cell transformation in the MR-DC scene;

and the first sending module is used for sending the reference information to at least one auxiliary node involved in the auxiliary cell transformation process, so that the at least one auxiliary node involved in the auxiliary cell transformation process judges the error type of the auxiliary cell transformation in the MR-DC scene according to the reference information.

In a seventh aspect, an embodiment of the present invention provides a system for determining an error type of a secondary cell transformation, including the network device according to the third aspect and the network device according to the fourth aspect.

In an eighth aspect, embodiments of the present invention provide a processor-readable storage medium storing a computer program for causing the processor to perform the method of any one of the above.

In the embodiment of the invention, under the scene of secondary cell transformation in a secondary node or secondary cell transformation among secondary nodes, after SCG failure occurs, MN can acquire reference information and send the reference information to at least one SN involved in the secondary cell transformation process, so that the SN can judge the error type of secondary cell transformation in an MR-DC scene according to the reference information, wherein the reference information comprises target information and/or auxiliary judgment information, the target information is information of a secondary cell group which is acquired by a main node and is used for reestablishing various wireless access technologies to connect with MR-DC after secondary cell group failure occurs, and the auxiliary judgment information is used for judging the error type of secondary cell transformation in the MR-DC scene. It can be seen that, in the embodiment of the present invention, after the SCG failure occurs, the MN transmits the SCG information of the re-established MR-DC and/or the auxiliary decision information for determining the error type of the secondary cell transformation in the MR-DC scenario to at least one SN involved in the secondary cell transformation process, so that the SN can determine the error type of the secondary cell transformation in the MR-DC scenario, and therefore, in the embodiment of the present invention, the error type of the secondary cell transformation can be determined after the SCG failure occurs.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments of the present invention will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a diagram of an MR-DC control plane architecture with a UE connected to a 5 GC;

fig. 2 is a flow chart of SN change;

FIG. 3 is a flow chart of an oversided SN change;

FIG. 4 is one of the flow charts of a premature SN change;

FIG. 5 is a second flowchart of a premature SN change;

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

fig. 7 is a flowchart of steps of a method for determining an error type of a secondary cell transformation applied to a primary node according to an embodiment of the present invention;

fig. 8 is a block diagram of a decision device of error type applied to secondary cell transformation of a first secondary node according to an embodiment of the present invention;

fig. 9 is a block diagram of a determination device of error type applied to secondary cell transformation of a primary node according to an embodiment of the present invention;

Fig. 10 is a block diagram of a network device according to an embodiment of the present invention.

Detailed Description

In the embodiment of the invention, the term "and/or" describes the association relation of the association objects, which means that three relations can exist, for example, a and/or B can be expressed as follows: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The term "plurality" in the embodiments of the present application means two or more, and other adjectives are similar thereto.

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The embodiment of the application provides a method and equipment for judging the error type of secondary cell transformation, which are used for judging the error type of secondary cell transformation after SCG failure occurs.

The method and the device are based on the same application, and because the principles of solving the problems by the method and the device are similar, the implementation of the device and the method can be referred to each other, and the repetition is not repeated.

In addition, the technical scheme provided by the embodiment of the application can be suitable for various systems, especially 5G systems. For example, suitable systems may be global system for mobile communications (global system of mobile communication, GSM), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (Wideband CodeDivision Multiple Access, WCDMA) universal packet Radio service (general packet Radio service, GPRS), long term evolution (long term evolution, LTE), LTE frequency division duplex (frequencydivision duplex, FDD), LTE time division duplex (time division duplex, TDD), long term evolution-advanced (long term evolution advanced, LTE-a), universal mobile system (universal mobiletelecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperabilityfor microwave access, wiMAX), 5G New air interface (New Radio, NR), and the like. Terminal devices and network devices are included in these various systems. Core network parts such as evolved packet system (EvlovedPacket System, EPS), 5G system (5 GS) etc. may also be included in the system.

The terminal device according to 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, etc. The names of the terminal devices may also be different in different systems, for example in a 5G system, the terminal devices may be referred to as User Equipment (UE). The wireless terminal device may communicate with one or more Core Networks (CNs) via a radio access Network (Radio Access Network, RAN), which may be mobile terminal devices such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, e.g., portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the radio access Network. Such as personal communication services (Personal Communication Service, PCS) phones, cordless phones, session initiation protocol (Session Initiated Protocol, SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital assistants (Personal Digital Assistant, PDAs), and the like. The wireless terminal device may also be referred to as a system, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile), remote station (remote station), access point (access point), remote terminal device (remote terminal), access terminal device (access terminal), user terminal device (user terminal), user agent (user agent), user equipment (user device), and embodiments of the present application are not limited.

The network device according to the embodiment of the present application may be a base station, where the base station may include a plurality of cells for providing services for a terminal. A base station may also be called an access point or may be a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or other names, depending on the particular application. The network device may be operable to exchange received air frames with internet protocol (Internet Protocol, IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in a global system for mobile communications (Global System for Mobile communications, GSM) or code division multiple access (Code Division Multiple Access, CDMA), a network device (NodeB) in a wideband code division multiple access (Wide-band Code Division Multiple Access, WCDMA), an evolved network device (evolutional Node B, eNB or e-NodeB) in a long term evolution (long term evolution, LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), a home evolved base station (Home evolved Node B, heNB), a relay node (relay node), a home base station (femto), a pico base station (pico), and the like. In some network structures, the network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, which may also be geographically separated.

Multiple-input Multiple-output (MultiInput Multi Output, MIMO) transmissions may each be made between a network device and a terminal device using one or more antennas, and the MIMO transmissions may be Single User MIMO (SU-MIMO) or Multiple User MIMO (MU-MIMO). The MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or may be diversity transmission, precoding transmission, beamforming transmission, or the like, depending on the form and number of the root antenna combinations.

In order to facilitate understanding of the method for determining the error type of the secondary cell transformation provided in the present application, the following description will be first provided.

In a first aspect, regarding Multi-connectivity (MC):

in a multi-connection architecture, a UE may be connected to one MN and to one or more SNs and interact with the network nodes in signaling and/or data. 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 (NR) nodes. When there is one MN node and one SN node, it may be referred to as Dual Connection (DC). Wherein, the connection schematic diagram of the double connection is shown in fig. 1. Where NG-C in fig. 1 is an NG interface control plane, xn-C is an Xn interface control plane, uu is an interface between UE and 5G access network.

When the UE is in a connected state, it may be connected to one or more network nodes, which may be in one or more of a plurality of 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 both MN and SN are NR nodes, they are NR-NR-DC.

In a second aspect, regarding air interface SCG failure information (SCG failure information) messages:

radio Link Failure (RLF) is divided into two types, a primary cell group (Master Cell group, MCG) and SCG, if the MCG fails, the UE triggers the RRC connection re-establishment procedure, and if the SCG fails, the UE sends SCG failure information a message to the MN node. Wherein SCG is a group of serving cells under MR-DC, under SN node, comprising one primary secondary cell (PSCell) and possibly one or more secondary cells (Scells). In case the MCG is MR-DC, the serving cell group under the MN node.

Wherein SCG failure information functions to inform the MN node about radio link failure, synchronization reconfiguration failure, SCG configuration failure on signaling bearer 3 (SRB 3) and SCG integrity check failure information of the UE occurring at the SN node.

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

In a third aspect, regarding a flow of SN conversion (SN change):

the SN change procedure may be triggered by the MN or SN to transfer the UE context from the source SN to the target SN while changing the SCG configuration from the source SN to the target SN at the UE side. As shown in fig. 2, the SN change procedure triggered by MN in EN-DC scenario is shown.

As can be seen from fig. 2, the process from step 201 to step 202 is to trigger an SN change procedure by the MN, and send an auxiliary node (SgNB) adding message to the target SN to request allocation of resources; the process of step 203 is that the MN triggers the SgNB to delete the message to the source SN, requesting the source SN to stop continuing to send data to the UE; the process of step 204 to step 205 is to configure the UE by the MN to perform new configuration; step 206, the MN notifies the target SN that configuration is completed; the process of step 207 is that the UE performs random access at the target SN; the process of step 208 is for the MN to release the source SN configuration.

In a fourth aspect, regarding an excessive delay SN change at MR-DC: after the UE has been connected to a cell of one SN for a long period of time, SCG failure occurs, and if the MN determines that the UE establishes a radio connection under a different SN, too late SNchange occurs. Specifically, as shown in fig. 3, after a long period of time after the MR-DC establishment is completed, if SCG failure occurs in the source SN (i.e., S-SN), the UE will send SCG failure information a message to the MN (i.e., step 301), then the MN sends an SCG failure indication message to the S-SN (i.e., step 302), and the MN triggers the subsequent SN change procedure (i.e., steps 303 to 310).

I.e. if the time interval between the starting time of the UE accessing the S-SN and the time when it occurs SCG in the S-SN is greater than a first preset duration, the UE experiences too late secondary node transformation.

In a fifth aspect, regarding premature SN change at MR-DC:

the method comprises the steps that SCG failure occurs in the process that the UE is changed from an access source SN to an access target SN, or in a short period of time after the UE is accessed to the target SN, the MN determines that the UE establishes wireless connection under the source SN again, and then the premature SN change occurs. It follows that there are two different cases of premature SN change:

case one: the UE successfully accesses the target SN but the SCG failure occurs in a short time, and the MN decides that the UE re-establishes the radio connection under the source SN. Specifically, as shown in fig. 4, the SN change is successful (i.e. steps 401 to 408), and after that, the SCG failure occurs in the target SN (i.e. T-SN), the UE sends SCG failure information a message to the MN (i.e. step 409), and 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 in the S-SN.

And a second case: another scenario for early handover is failure to access the T-SN, where the MN decides to re-establish the radio connection with the S-SN by the UE. Specifically, as shown in fig. 5, steps 501 to 508 are SN change flows, in which in step 507, the UE fails to access the T-SN randomly. The UE sends SCG failure information a message to the MN in step 509, so that the MN sends an SCG failure indication message to the S-SN in step 510, because SCG failure information may contain the measurement result of the S-SN, and the MN triggers SN change to re-establish the MR-DC at the S-SN.

If the time interval between the starting time of the UE accessing the T-SN and the time of the UE accessing the SCG in the T-SN is smaller than or equal to the first preset time length, and the UE is accessed to the S-SN again, the UE generates the premature auxiliary node conversion; or if the UE fails to access the T-SN and re-accesses the S-SN, the UE performs the early auxiliary node transformation.

In a sixth aspect, regarding SN change to error cell under MR-DC:

the method comprises the steps that SCG failure occurs in the process that the UE is changed from an access source SN to an access target SN, or in a short period of time after the UE is accessed to the target SN, the MN determines that the UE establishes wireless connection again under other SN cells which do not belong to the source SN and the target SN, and then SN change occurs to an error cell.

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

If the time interval between the starting time of the UE accessing the T-SN and the time when the UE generating SCG in the T-SN is smaller than or equal to the first preset time length, and the UE re-accesses in other SNs except the S-SN and the T-SN, the UE generates auxiliary node transformation to an error cell; or if the UE fails to access the T-SN and the UE re-accesses in other SNs except the S-SN and the T-SN, the UE generates a transformation of the auxiliary node to the wrong cell.

Similarly, if the time interval between the starting time of the UE accessing the source primary and secondary cells and the time of the UE accessing the source primary and secondary cells generating SCG is greater than the second preset time length, the UE generates too late primary and secondary cell conversion.

If the time interval between the starting time of the UE accessing the target primary and secondary cells and the time of the UE accessing the target primary and secondary cells generating SCG is smaller than or equal to the second preset time length and the UE re-accesses the source primary and secondary cells, the UE generates premature primary and secondary cell conversion; or if the UE fails to access the target primary and secondary cells and re-accesses the source primary and secondary cells, the UE performs premature primary and secondary cell conversion.

If the time interval between the starting time of the UE accessing the target primary and secondary cells and the time of the UE accessing the target primary and secondary cells when the target primary and secondary cells generate SCG is smaller than or equal to a second preset time length, and the UE is accessed again in other primary and secondary cells except the source primary and secondary cells and the target primary and secondary cells, the UE generates primary and secondary cell conversion to an error cell; or if the UE fails to access the target primary and secondary cells and the UE re-accesses in other SNs except the source primary and secondary cells and the target primary and secondary cells, the UE generates the transformation of the primary and secondary cells to the wrong cell.

Fig. 6 is a flow chart illustrating a method for determining an error type of secondary cell transformation according to an embodiment of the present invention. The method is applied to a first auxiliary node, wherein the first auxiliary node is one of auxiliary nodes involved in the auxiliary cell transformation process, and the auxiliary cell transformation comprises auxiliary cell transformation in the auxiliary nodes and auxiliary cell transformation among the auxiliary nodes.

As shown in fig. 6, the method may include the steps of:

step 601: and receiving the reference information sent by the master node.

The reference information comprises target information and/or auxiliary judgment information, the target information is information of an auxiliary cell group which is obtained by a main node and is used for reestablishing various wireless access technologies to connect with MR-DC after the auxiliary cell group fails, and the auxiliary judgment information is used for judging the error type of the auxiliary cell transformation under an MR-DC scene.

Here, the auxiliary decision information is reference information for determining the SCG of the re-established MR-DC, and after determining the information for re-establishing the SCG of the MR-DC, the error type of the secondary cell transformation in the MR-DC scene can be determined according to the information for re-establishing the SCG of the MR-DC. Therefore, in the embodiment of the invention, the auxiliary decision information is used for deciding the error type of the auxiliary cell transformation in the MR-DC scene.

In addition, if the SCG failure is detected by the UE, the UE notifies the MN and informs the MN of which SN has failed SCG when detecting the SCG failure. After learning that the SCG fails, the MN may acquire information for reestablishing the SCG of the MR-DC and/or auxiliary decision information for determining an error type of the secondary cell transformation in the MR-DC scenario. That is, the MN may select itself to reestablish the SCG of the MR-DC after the SCG failure occurs; the auxiliary decision information may also be sent to the first auxiliary node, so that the first auxiliary node may choose to re-establish the SCG of the MR-DC itself according to the auxiliary decision information.

Step 602: and judging the error type of the transformation of the auxiliary cell in the MR-DC scene according to the reference information.

When the reference information includes the target information, the SN may determine the error type of the current secondary cell transformation according to the target information included in the reference information, thereby optimizing the configuration parameters according to the error type.

That is, in case that the reference information includes the auxiliary decision information, the SN may select an SCG for re-establishing the MR-DC according to the auxiliary decision information included in the reference information, and further determine an error type of the current auxiliary cell transformation according to the selected SCG for re-establishing the MR-DC, thereby optimizing the configuration parameters according to the error type.

As can be seen from the foregoing, in the embodiment of the present invention, after SCG failure occurs in a scenario of secondary cell transformation in a secondary node or secondary cell transformation between secondary nodes, the MN may acquire reference information, and send the reference information to at least one SN involved in the secondary cell transformation process, so that the SN can determine an error type of secondary cell transformation in an MR-DC scenario according to the reference information, where the reference information includes target information and/or auxiliary decision information, the target information is information of a secondary cell group that is acquired by a primary node and is used to determine an error type of secondary cell transformation in an MR-DC scenario after secondary cell group failure occurs, where the secondary cell group is reestablished by multiple radio access technologies and connected to the MR-DC. It can be seen that, in the embodiment of the present invention, after the SCG failure occurs, the MN transmits the SCG information of the re-established MR-DC and/or the auxiliary decision information for determining the error type of the secondary cell transformation in the MR-DC scenario to at least one SN involved in the secondary cell transformation process, so that the SN can determine the error type of the secondary cell transformation in the MR-DC scenario, and therefore, in the embodiment of the present invention, the error type of the secondary cell transformation can be determined after the SCG failure occurs.

Wherein, for the cases of the premature secondary node transformation, the too late secondary node transformation, the secondary node transformation to the wrong cell, the too early primary secondary cell transformation, the too late primary secondary cell transformation, the primary secondary cell transformation to the wrong cell, the relevant decision threshold parameters need to be adjusted so that the secondary cell transformation can occur at the right moment and the correct target SN is selected.

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

In the flow of determining the error type of the transformation of each secondary cell, when the SCG fails, SN involved in the transformation process of the secondary cell cannot determine the error type, that is, whether to perform early transformation, late transformation or to perform transformation to the error cell. Similar to the conventional handover MRO function, the SN also has to know the SN information of the subsequent re-establishment MR-DC selection, as well as the handover failure type based on the re-established cell ID. SN has failed to trigger subsequent MR-DC establishment in some SCG failure scenarios, and can only be triggered by MN. The MN may send subsequent selection information to the SNs, for example for secondary cell transformations between SNs (i.e. SN changes), the MN may inform the SNs whether MR-DC is subsequently established at the S-SN, T-SN or other SNs to assist the SNs in determining the error type of the secondary cell transformations.

The network equipment and the UE maintain the respective UE history information, and the content is similar but has some differences.

In the 3gpp r17 version, SN content is added to the conventional UE history information, mainly including PSCell and corresponding access time. The primary serving cell (PCell) and PSCell information should have correlation, that is, PCell, PSCell cell and time information that can be accessed by UE at the same time can be represented, and in the PSCell selection process, the historical information content of the UE recorded in the past can be referred to.

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

or alternatively

As can be seen from the foregoing, before or during the process of re-establishing the MR-DC, the reference information may be carried in an existing message during the interaction between the MN and the SN, for example, in fig. 3, when the MN wants to send the reference information to the S-SN, the reference information may be carried in one message of SCG failure indication information, sgNB release request, and release UE context; the new message may also be added to send the reference information separately before the MR-DC is re-established by the ue that fails the secondary cell group, during the re-establishment of the MR-DC, or after the re-establishment of the MR-DC is completed, for example, in fig. 3, when the MN wants to send the reference information to the S-SN, the new message may be added before step 303, or the new message may be added between step 303 and step 310, or the new message may be added after step 310, so that the reference information is carried in the new message and sent to the S-SN.

I.e. the MN sends reference information to the SN, the re-established MR-DC may not have yet started to be established, may be being established, or may have already been established.

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

As can be seen from the foregoing, in the embodiment of the present invention, when the time interval between the time when the SCG failure occurs and the time when the SN receiving the reference information receives the reference information is less than or equal to a certain threshold, the SN receiving the reference information may determine the error type of the secondary cell transformation, otherwise, the SN receiving the reference information is later, that is, the received reference information is invalid, the error type of the secondary cell transformation is not determined this time, so that parameter optimization is not performed according to the error type of the secondary cell transformation this time.

Whether the SN receiving the reference information is the SN that fails SCG or not, the MN can notify the time of SCG failure, that is, directly send the time of SCG failure to the SN that needs to receive the reference information. The time when the SCG failure occurs may be transmitted together with the reference information or may be transmitted separately.

Here, the 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. In the embodiment of the present invention, the method for acquiring the time threshold is not specifically limited: for example, the user may set a specific value of the time threshold on the MN side and then inform the SN by the MN, or the user may directly set a specific value of the time threshold on the SN side, or may set the time threshold to take a default value.

When the MN sends the reference information to the SN with SCG failure, the SN with SCG failure can take the time when the MN receives the SCG failure indication information as the time of SCG failure, so that it can directly determine whether the time when the MN receives the SCG failure indication information and the time when the MN receives the reference information are smaller than the time threshold obtained in advance. Therefore, when the SN receiving the reference information is the SN in which the SCG failure occurs, the timing of the SCG failure can be implicitly notified.

Fig. 7 is a flow chart illustrating another method for determining an error type of secondary cell transformation according to an embodiment of the present invention. The method is applied to a master node, and the auxiliary cell transformation comprises auxiliary cell transformation in auxiliary nodes and auxiliary cell transformation among the auxiliary nodes.

As shown in fig. 7, the method may include the steps of:

step 701: and after the secondary node fails in the secondary cell group, the primary node acquires the reference information.

The reference information comprises target information and/or auxiliary judgment information, the target information is information of reestablishing auxiliary cell groups connected with the MR-DC by various wireless access technologies, which is acquired by the main node, and the auxiliary judgment information is used for judging the error type of the auxiliary cell transformation in the MR-DC scene.

Step 702: and sending the reference information to at least one auxiliary node involved in the auxiliary cell transformation process, so that the at least one auxiliary node involved in the auxiliary cell transformation process judges the error type of the auxiliary cell transformation in the MR-DC scene according to the reference information.

In the case that the reference information includes the auxiliary decision information, the SN may select an SCG for re-establishing the MR-DC according to the auxiliary decision information included in the reference information, and further determine an error type of the current auxiliary cell transformation according to the selected SCG for re-establishing the MR-DC, thereby optimizing the configuration parameters according to the error type.

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

Optionally, the at least one secondary node involved in the secondary cell transformation procedure includes at least one of a source secondary node and a target secondary node. I.e. after the SCG failure, the MN may send information to re-establish the SCG of the MR-DC to at least one of the source and target secondary nodes involved in the secondary cell transformation procedure.

Optionally, the master node obtains reference information, including:

The method comprises the steps that when the MN receives SCG failure information sent by UE, the MN is triggered to acquire SCG information for reestablishing MR-DC and/or auxiliary judgment information for judging the error type of auxiliary cell transformation in an MR-DC scene, so that the MN sends the information to at least one auxiliary node involved in the auxiliary cell transformation process.

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

Or alternatively

or alternatively

As can be seen from the foregoing, before or during the process of re-establishing the MR-DC, the reference information may be carried in an existing message during the interaction between the MN and the SN, for example, in fig. 3, when the MN wants to send the reference information to the S-SN, the reference information may be carried in one message of SCG failure indication information, sgNB release request, and release UE context; the new message may be added to send the reference information separately before or during the process of re-establishing the MR-DC or after the process of re-establishing the MR-DC is completed, for example, in fig. 3, when the MN wants to send the reference information to the S-SN, the message may be added before step 303, or the message may be added between step 303 and step 310, or the message may be 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 comprises:

The SN receiving the first time is the same as the SN receiving the reference information, that is, in the embodiment of the present invention, the MN needs to send the reference information to which SNs, and then the first time may be sent to which SNs.

In addition, after the SN receives the first time and the reference information, the SN may determine that a time interval between the first time and the time when the SN receives the reference information is less than or equal to a time threshold value obtained in advance, and if so, determine an error type of the secondary cell transformation in the MR-DC scene according to the reference information.

In summary, a specific implementation manner of the method for determining an error type of secondary cell transformation according to the embodiment of the present invention may be as follows:

embodiment one

In the case of an too late SN change scenario, see fig. 3, the mn sends an SCG failure indication message to the S-SN in step 302. The MN also needs to send the S-SN target information (i.e. the information of the subsequently selected SCG for re-establishing the MR-DC) which may be added in the SCG failure indication message, or may be added in a message sent to the S-SN by the existing other MN (e.g. SgNB release request, release UE context message), or a new message to deliver the information.

The MN may also send the auxiliary decision information to the S-SN, which selects the SCG information to re-establish the MR-DC according to the auxiliary decision information itself. The assistance decision information includes UE context information of the S-SN and/or history information of UEs that have failed SCG.

Wherein, since the UE context information is also present in the S-SN, the MN may not transmit the UE context information to the S-SN, but the UE history information in the S-SN may not have been the latest version, so the MN is required to transmit the UE history information to the S-SN.

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

The timing of the MN sending 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 MR-DC re-establishment process, or after completing the MR-DC re-establishment.

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

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 auxiliary cell transformation according to the target information and/or the auxiliary decision information. That is, when the time of the SCG is close to the time of the S-SN receiving the target information and/or the auxiliary decision information (i.e., the time interval between the two is less than or equal to the time threshold acquired in advance), the S-SN may determine the auxiliary cell transformation error type according to the target information and/or the auxiliary decision information.

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, if the time between the time when the SCG information is sent in step 301 and the time when the SCG failure indication information is sent in step 302 is relatively close (i.e. less than or equal to the time threshold value acquired in advance), which indicates that there is a correlation in time, the S-SN may determine the error type of the secondary cell change according to the target information.

Second embodiment

In one scenario of a premature SN change, see fig. 4, the mn sends an SCG failure indication message to the T-SN in step 410. The MN also needs to send destination information (i.e. information of subsequently selected SCGs for re-establishing the MR-DC) to the T-SN, which may be added to the SCG failure indication message, or may be added to messages sent to the T-SN by other existing MNs, or a new message may be added to deliver the information.

The MN can also send auxiliary judgment information to the T-SN, and the T-SN selects to reestablish SCG information of the MR-DC according to the auxiliary judgment information. The assistance decision information includes UE context information of the S-SN and/or history information of UEs that have failed SCG.

Wherein, since the UE context information is also present in the T-SN, the MN may not transmit 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 is required to transmit the UE history information to the T-SN.

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

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

In addition, after the T-SN receives the target information and/or the auxiliary judgment information sent by the MN, the time correlation can be considered when the error type of the auxiliary cell transformation is judged according to the target information and/or the auxiliary judgment information. That is, when the time of the SCG is close to the time of the T-SN receiving the target information and/or the auxiliary decision information (i.e., the time interval between the two is smaller than the time threshold value acquired in advance), the T-SN may determine the auxiliary cell transformation error type according to the target information and/or the auxiliary decision information.

For example, in fig. 4, when the target information and/or the auxiliary decision information is carried in the SCG failure indication information in step 410 and sent to the T-SN, if the time between the time when the SCG information is sent in step 409 and the time when the SCG failure indication information is sent in step 410 is relatively close (i.e. less than or equal to the time threshold acquired in advance), which indicates that there is a correlation in time, the T-SN may determine the error type of the secondary cell transformation according to the target information and/or the auxiliary decision information.

Example III

In another scenario of premature SN change, see fig. 5, the MN receives SCG failure information sent by the UE in step 509. Wherein, since the SCG failure information received by the MN may contain 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 needs to send destination information (i.e., the information of the subsequently selected SCG for re-establishing the MR-DC) to the S-SN, which may be added to the SCG failure indication message, or may be added to the messages sent to the S-SN by other existing MNs, or may be added to a new message to deliver the information.

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

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

The timing of the MN sending 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 MR-DC re-establishment process, or after the user equipment that fails the auxiliary 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 auxiliary cell transformation according to the target information and/or the auxiliary decision information. That is, when the failure time of the random access of the UE to the T-SN is relatively close to the time when the S-SN receives the target information and/or the auxiliary decision information (i.e., the time interval between the two is smaller than the time threshold acquired in advance), the S-SN may perform the decision of the auxiliary cell transformation error type according to the target information and/or the auxiliary decision information.

For example, in fig. 5, the time of failure of the UE to randomly access the T-SN may be pre-agreed to be the time of sending the SCG failure information by the UE, and when the target information and/or the auxiliary decision information are carried in the SCG failure indication information in step 510 and sent to the S-SN, if the time of sending the SCG information in step 509 is relatively close to the time of sending the SCG failure indication information in step 410 (i.e. less than or equal to the pre-acquired time threshold), which indicates that there is a correlation in time, the S-SN may determine the error type of the secondary cell transformation according to the target information and/or the auxiliary decision information.

Alternatively, the S-SN may be notified by the MN of the failure moment of the UE random access to the T-SN, e.g., the MN communicates the failure moment of the UE random access to the T-SN to the S-SN over the XN or X2 interface. And when the time of failure of the random access T-SN of the UE received by the S-SN is close to the time of receiving the target information and/or the auxiliary judgment information (namely, the time of the failure is smaller than or equal to a time threshold value acquired in advance), the time correlation is indicated, and the S-SN can judge the error type of the auxiliary cell transformation according to the target information and/or the auxiliary judgment information.

In addition, it should be noted that, for the case of SN change to the wrong cell, the manner and timing of transmitting the target information and/or the auxiliary decision information by the MN, after receiving the target information and/or the auxiliary decision information, and determining the error type condition of the auxiliary cell according to the target information and/or the auxiliary decision information, similar to the two cases of premature SN change in the foregoing second and third embodiments, the relevant descriptions in the foregoing second and third embodiments may be omitted herein.

From the above, it can be seen that, in the MR-DC scenario, if SCG failure occurs, when SN involved in the secondary cell conversion process performs SN change failure type determination, part of information is absent. The embodiment of the invention adds the reference information (including the target information and/or the auxiliary decision information) provided by the MN to the SN on the interface, so that the SN can make a decision on which error type the SN belongs to, thereby being beneficial to optimizing the configuration parameters.

The method for determining the error type of the secondary cell transformation provided by the embodiment of the invention is described above, and the device for determining the error type of the secondary cell transformation provided by the embodiment of the invention is described below with reference to the accompanying drawings.

Referring to fig. 8, the embodiment of the invention further provides a device for determining an error type of an auxiliary cell transformation, which is applied to a first auxiliary node, wherein the first auxiliary node is one of auxiliary nodes involved in the auxiliary cell transformation process, and the auxiliary cell transformation comprises auxiliary cell transformation in the auxiliary nodes and auxiliary cell transformation among the auxiliary nodes; the device comprises:

a first receiving module 801, configured to receive reference information sent by a master node, where the reference information includes target information and/or auxiliary decision information, where the target information is information of an auxiliary cell group obtained by the master node to reestablish multiple radio access technologies to connect to MR-DC after an auxiliary cell group failure occurs, and the auxiliary decision information is used to determine an error type of the auxiliary cell transformation in an MR-DC scenario;

and a determining module 802, configured to determine an error type of the secondary cell transformation in the MR-DC scenario according to the reference information.

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 alternatively

Or alternatively

or alternatively

Optionally, the apparatus further includes:

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

the determining module 802 is specifically configured to:

Optionally, the apparatus further includes:

the second time information acquisition module is used for receiving the auxiliary cell group failure indication message sent by the master node and determining the time for receiving the auxiliary cell group failure indication message as a third time;

the determining module 802 is specifically configured to:

Referring to fig. 9, the embodiment of the invention also provides a device for determining the error type of the secondary cell transformation, which is applied to the main node, wherein the secondary cell transformation comprises secondary cell transformation in the secondary node and secondary cell transformation among the secondary nodes; the device comprises:

The information acquisition module 901 is configured to, after an auxiliary node fails in an auxiliary cell group, acquire reference information by the main node, where the reference information includes target information and/or auxiliary decision information, where the target information is information of the auxiliary cell group acquired by the main node for reestablishing multiple wireless access technologies to connect to the MR-DC, and the auxiliary decision information is used to determine an error type of the auxiliary cell transformation 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 transformation process, so that the at least one secondary node involved in the secondary cell transformation process determines, according to the reference information, an error type of the secondary cell transformation in the MR-DC scenario.

Optionally, the information obtaining module 901 is specifically configured to:

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 alternatively

Or alternatively

or alternatively

Optionally, the apparatus further includes:

and the second sending module is used for sending the first moment to at least one auxiliary node involved in the auxiliary cell transformation process, wherein the first moment is the moment when the auxiliary cell group failure occurs.

It should be noted that, in the embodiment of the present application, the division of the units is schematic, which is merely a logic function division, and other division manners may be implemented in actual practice. In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a processor-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution, in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

It should be noted that, the above device provided in the embodiment of the present invention can implement all the method steps implemented in the method embodiment and achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiment in this embodiment are omitted.

The embodiment of the invention also provides a system for judging the error type of the secondary cell transformation, which comprises the network equipment applied to the first secondary node and the network equipment applied to the main node.

The embodiment of the invention also provides a network device, as shown in fig. 10, which includes a memory 1001, a transceiver 1002, and a processor 1003;

a memory 1001 for storing a computer program;

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

in a 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:

the transceiver 1002 is controlled to receive reference information sent by a master node, where the reference information includes target information and/or auxiliary decision information, where the target information is information of an auxiliary cell group obtained by the master node to reestablish multiple wireless access technologies to connect to MR-DC after an auxiliary cell group failure occurs, and the auxiliary decision information is used to determine an error type of the auxiliary cell transformation in an MR-DC scene;

According to the reference information, determining the error type of the transformation of the auxiliary cell in the MR-DC scene;

the first auxiliary node is one of auxiliary nodes involved in the auxiliary cell transformation process, and the auxiliary cell transformation comprises auxiliary cell transformation in the auxiliary nodes and auxiliary cell transformation among the auxiliary nodes.

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

or alternatively

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

Controlling the transceiver 1002 to transmit the reference information to at least one secondary node involved in the secondary cell transformation process, so that the at least one secondary node involved in the secondary cell transformation process determines an error type of the secondary cell transformation in an MR-DC scene according to the reference information;

the auxiliary cell transformation comprises auxiliary cell transformation in auxiliary nodes and auxiliary cell transformation among the auxiliary nodes.

Optionally, the master node obtains reference information, including:

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

or alternatively

Or alternatively

Optionally, the processor 1003 is further configured to:

Where in FIG. 10, a bus architecture may be comprised of any number of interconnected buses and bridges, one or more processors, represented in particular by processor 1003, and various circuits of the memory, represented by memory 1001. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 1002 may be a number of elements, i.e., including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium, including wireless channels, wired channels, optical cables, etc. 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 may be a Central Processing Unit (CPU), application specific integrated circuit (Application SpecificIntegrated Circuit, ASIC), field programmable gate array (Field-Programmable Gate Array, FPGA) or complex programmable logic device (Complex Programmable Logic Device, CPLD), and the processor may also employ a multi-core architecture.

Embodiments of the present invention also provide a processor-readable storage medium storing a computer program for causing the processor to perform a method of determining an error type of a secondary cell change.

The processor-readable storage medium may be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic storage (e.g., floppy disks, hard disks, tapes, magneto-optical disks (MOs), etc.), optical storage (e.g., CD, DVD, BD, HVD, etc.), and semiconductor storage (e.g., ROM, EPROM, EEPROM, nonvolatile storage (NANDFLASH), solid State Disk (SSD)), etc.

It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or 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 (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.

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 application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

Claims

1. The method is characterized by being applied to a first auxiliary node, wherein the first auxiliary node is one of auxiliary nodes involved in the auxiliary cell transformation process, and the auxiliary cell transformation comprises auxiliary cell transformation in the auxiliary nodes and auxiliary cell transformation among the auxiliary nodes; the method comprises the following steps:

receiving reference information sent by a main node, wherein the reference information comprises target information and/or auxiliary judgment information, the target information is information of an auxiliary cell group which is obtained by the main node and is used for reestablishing various wireless access technologies to be connected with MR-DC after the auxiliary cell group fails, and the auxiliary judgment information is used for judging the error type of the auxiliary cell transformation under an MR-DC scene;

2. The method for determining the error type of the secondary cell change according to claim 1, wherein the target information includes at least one of the following;

3. The method for determining the error type of the secondary cell transition according to claim 1, wherein the secondary decision information includes at least one of:

4. A method for determining an error type of a secondary cell transformation according to claim 1 or 3, wherein when the reference information includes the auxiliary decision information, the determining the error type of the secondary cell transformation in an MR-DC scene according to the reference information comprises:

determining the auxiliary cell in the MR-DC scene according to the information of reestablishing the MR-DC auxiliary cell group

Error type of zone change.

5. The method for determining the error type of the secondary cell transformation according to claim 1, wherein the receiving the reference information sent by the primary node includes:

Or receiving a first message sent by the master node, wherein the first message carries the reference information, and the first message is a message sent by the master node to the first auxiliary node in the process of reestablishing the MR-DC by the user equipment with the failure of the auxiliary cell group;

or receiving a second message sent by the master node, wherein the second message carries the reference information, and the second message is added in the process of reestablishing MR-DC by the user equipment which fails to generate the secondary cell group;

or receiving a third message sent by the master node, wherein the third message carries the reference information, and the third message is added after the user equipment which fails to generate the secondary cell group completes the MR-DC establishment;

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

6. The method for determining the error type of the secondary cell transformation according to claim 1, wherein before determining the error type of the secondary cell transformation in the MR-DC scenario according to the reference information, the method further comprises:

7. The method for determining the error type of the secondary cell transformation according to claim 1, wherein before determining the error type of the secondary cell transformation in the MR-DC scenario according to the reference information, the method further comprises:

determining an error of the secondary cell change in the MR-DC scene according to the reference information when the time interval from the third time to the second time is less than or equal to a pre-acquired time threshold

Error type;

8. The method for determining the error type of the secondary cell transition according to claim 1, wherein the error type of the secondary cell transition comprises at least one of:

9. The method for determining the error type of the secondary cell change according to claim 1, wherein

The first auxiliary node is a source auxiliary node or a target auxiliary node.

10. The method for judging the error type of the auxiliary cell transformation is characterized by being applied to a main node, wherein the auxiliary cell transformation comprises auxiliary cell transformation in auxiliary nodes and auxiliary cell transformation among the auxiliary nodes; the method comprises the following steps:

after the secondary node fails to establish the secondary cell group, the primary node acquires reference information, wherein the reference information comprises target information and/or auxiliary judgment information, the target information is information of the secondary cell group which is acquired by the primary node and is used for reestablishing the connection of multiple wireless access technologies to MR-DC, and the auxiliary judgment information is acquired by the primary node

The block information is used for judging the error type of the auxiliary cell transformation in the MR-DC scene, and the auxiliary judgment information is used for judging the error type of the auxiliary cell transformation in the MR-DC scene;

11. The method for determining the error type of the secondary cell transition according to claim 10, wherein the primary node acquires reference information, comprising:

12. The method for determining the error type of the secondary cell transition according to claim 10, wherein said transmitting said reference information to at least one of the secondary cell transitions involved in said secondary cell transition

A secondary node, comprising:

13. The method for determining the error type of the secondary cell change according to claim 10, wherein the target information includes at least one of the following;

14. The method for determining the error type of the secondary cell transition according to claim 10, wherein the secondary decision information includes at least one of:

15. The method for determining the error type of the secondary cell transformation according to claim 10, wherein the transmitting the reference information to at least one secondary node involved in the secondary cell transformation process comprises:

or the reference information is carried in a first message and is sent to at least one auxiliary node involved in the auxiliary cell transformation process, wherein the first message sent to a first auxiliary node is a message sent to the first auxiliary node by the main node in the process of reestablishing MR-DC (magnetic resonance-direct current) by user equipment with the failure of the auxiliary cell group, and the first auxiliary node is any one of the at least one auxiliary node;

Or adding a second message in the process of reestablishing MR-DC by the user equipment with the failure of the secondary cell group, carrying the reference information in the second message, and sending the reference information to at least one secondary node involved in the secondary cell transformation process;

or after the user equipment with the failure of the secondary cell group completes the MR-DC reestablishment, adding a third message, carrying the reference information in the third message, and sending the reference information to at least one secondary node involved in the secondary cell transformation process;

or adding a fourth message before the user equipment with the failure of the secondary cell group reestablishes the MR-DC, carrying the reference information in the fourth message, and sending the reference information to at least one secondary node involved in the secondary cell transformation process.

16. The method for determining the error type of the secondary cell transition according to claim 10, further comprising:

17. The method for determining the error type of the secondary cell transition according to claim 10, wherein the error type of the secondary cell transition comprises at least one of:

18. The method of claim 10, wherein the at least one secondary node involved in the secondary cell transformation process comprises at least one of a source secondary node and a target secondary node.

19. The network equipment is characterized by being applied to a first auxiliary node, wherein the first auxiliary node is one of auxiliary nodes involved in an auxiliary cell transformation process, and the auxiliary cell transformation comprises auxiliary cell transformation in the auxiliary nodes and auxiliary cell transformation among the auxiliary nodes;

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

the transceiver is controlled to receive reference information sent by a main node, wherein the reference information comprises target information and/or auxiliary judgment information, the target information is information of an auxiliary cell group which is acquired by the main node and is used for reestablishing multiple wireless access technologies to be connected with MR-DC after the auxiliary cell group fails, the auxiliary judgment information is used for judging the error type of the auxiliary cell conversion in an MR-DC scene, and the auxiliary judgment information is used for judging the error type of the auxiliary cell conversion in the MR-DC scene;

20. The network device of claim 19, wherein the target information comprises at least one of;

21. The network device of claim 19, wherein the auxiliary decision information comprises at least one of:

22. The network device according to claim 19 or 21, wherein when the reference information comprises the assistance decision information, the MR-DC scene is decided based on the reference information

The following error types of the secondary cell transformation include:

Error type of zone change.

23. The network device of claim 19, wherein the receiving the reference information sent by the master node comprises:

24. The network device of claim 19, wherein the transceiver is further configured to, prior to determining the error type of the secondary cell change in the MR-DC scenario based on the reference information:

25. The network device of claim 19, wherein the processor is further configured to, prior to determining the error type of the secondary cell transformation in the MR-DC scenario based on the reference information:

26. A network device, characterized in that it is applied to a primary node, and the secondary cell transformation comprises

Auxiliary cell transformation in auxiliary nodes and auxiliary cell transformation between auxiliary nodes;

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

after the auxiliary node fails in the auxiliary cell group, the main node is controlled to acquire reference information, wherein the reference information comprises target information and/or auxiliary judgment information, the target information is information of the auxiliary cell group which is acquired by the main node and is used for reestablishing multiple wireless access technologies to be connected with MR-DC, the auxiliary judgment information is used for judging the error type of the auxiliary cell transformation in the MR-DC scene, and the auxiliary judgment information is used for judging the error type of the auxiliary cell transformation in the MR-DC scene;

27. The network device of claim 26, wherein the master node obtains

Reference information, comprising:

28. The network device of claim 26, wherein the target information comprises at least one of;

29. The network device of claim 26, wherein the auxiliary decision information comprises at least one of: context information of the user equipment in which the secondary cell group failure occurs; history information of the user equipment in which the secondary cell group failure occurs.

30. The network device of claim 26, wherein said transmitting the reference information to at least one secondary node involved in the secondary cell transformation procedure comprises:

or the reference information is carried in a first message and is sent to at least one auxiliary node involved in the auxiliary cell transformation process, wherein the first message sent to a first auxiliary node is a message sent to the first auxiliary node by the main node in the process of reestablishing MR-DC (magnetic resonance-direct current) by user equipment with failure of the auxiliary cell group, and the first auxiliary node is any one of the at least one auxiliary node;

or after the user equipment with the failure of the secondary cell group completes MR-DC reestablishment, adding a third message, carrying the reference information in the third message, and sending the reference information to at least one secondary node involved in the secondary cell transformation process;

31. The network device of claim 26, wherein the processor is further configured to: and controlling the transceiver to send a first moment to at least one auxiliary node involved in the auxiliary cell transformation process, wherein the first moment is a moment when the auxiliary cell group failure occurs.

32. The device is characterized by being applied to a first auxiliary node, wherein the first auxiliary node is one of auxiliary nodes involved in the auxiliary cell transformation process, and the auxiliary cell transformation comprises auxiliary cell transformation in the auxiliary nodes and auxiliary cell transformation among the auxiliary nodes; the device comprises:

the first receiving module is used for receiving reference information sent by a main node, wherein the reference information comprises target information and/or auxiliary judgment information, the target information is information of an auxiliary cell group which is acquired by the main node and is used for reestablishing multiple wireless access technologies to be connected with MR-DC after the auxiliary cell group fails, the auxiliary judgment information is used for judging the error type of the auxiliary cell transformation in an MR-DC scene, and the auxiliary judgment information is used for judging the error type of the auxiliary cell transformation in the MR-DC scene;

33. The device is characterized by being applied to a main node, wherein the auxiliary cell transformation comprises auxiliary cell transformation in auxiliary nodes and auxiliary cell transformation among the auxiliary nodes; the device comprises:

the information acquisition module is used for controlling the main node to acquire reference information after the auxiliary node fails in the auxiliary cell group, wherein the reference information comprises target information and/or auxiliary judgment information, the target information is information of the auxiliary cell group which is acquired by the main node and is used for reestablishing the connection of multiple wireless access technologies to the MR-DC, and the auxiliary judgment information is used for judging the transformation of the auxiliary cell under the MR-DC scene

Error type;

the first sending module is configured to send the reference information to at least one auxiliary node involved in the auxiliary cell transformation process, so that the at least one auxiliary node involved in the auxiliary cell transformation process determines an error type of the auxiliary cell transformation in the MR-DC scene according to the reference information, and the auxiliary decision information is used for determining the error type of the auxiliary cell transformation in the MR-DC scene.

34. A processor-readable storage medium, characterized in that the processor-readable storage medium stores a computer program for causing the processor to perform the method of any one of claims 1 to 9 or to perform the method of any one of claims 10 to 18.