CN117561733A

CN117561733A - Information transmission method, related equipment and medium

Info

Publication number: CN117561733A
Application number: CN202180099839.3A
Authority: CN
Inventors: 胡奕; 李海涛; 于新磊
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-10-28
Filing date: 2021-10-28
Publication date: 2024-02-13
Also published as: WO2023070449A1

Abstract

The embodiment of the application discloses an information transmission method, related equipment and medium, comprising the following steps: the terminal determines that a target failure event exists, wherein the target failure event comprises an MCG Radio Link Failure (RLF) event and/or an SCG failure event; in the case that the target failure event is the MCG RLF event, the terminal sends first failure information, where the first failure information carries any one or more of the following reporting parameters: the location information, the first delay information, the first distance information of the terminal, and/or, in the case that the target failure event is the SCG failure event, the terminal sends second failure information, where the second failure information carries any one or more of the following information: second delay information and second distance information. By adopting the embodiment of the application, the reliability of recovery configuration is improved.

Description

Information transmission method, related equipment and medium

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to an information transmission method, related devices, and a medium.

Background

With the development of communication technology, a dual connectivity technology has been developed. Through the double-connection technology, the terminal can communicate with two base stations, so that the throughput of a user can be improved, the data transmission rate can be improved, and load balancing and the like can be realized. During communication in a dual connectivity system, situations may arise where the primary cell group (Master Cell group, MCG) fails or the secondary cell group (Secondary Cell group, SCG) fails. The inventor finds that after detecting MCG failure or SCG failure, the terminal reports the reference signal received power (Reference Signal Received Power, RSRP) or reference signal received quality (Reference Signal Receiving Quality, RSRQ) result of each cell, so that the Master Node (MN) can perform recovery configuration according to the information reported by the terminal. For example, after detecting an MCG failure, such as an MCG radio link failure (Radio Link failure, RLF), the terminal mainly reports the auxiliary information to the MN as the cause of the MCG failure and the RSRP and RSRQ results of the cells, and the MN determines the recovery configuration of the MCG failure according to the RSRP and RSRQ results; for another example, after detecting that the SCG fails, the terminal reports the auxiliary information to the MN mainly including the reason of the SCG failure and the RSRP and RSRQ results of the cells, and then the MN decides whether to reserve the current SCG, change the SCG, or release the SCG according to the reporting information of the terminal.

However, the inventors realized that in many scenarios, performing recovery configuration based on RSRP, RSRQ results easily results in unreliable recovery configuration to be adopted, so that the service experience of the terminal is affected. For example, in a non-terrestrial communication network (Non Terrestrial Network, NTN), the spatial path loss between the terminal and the satellite in NTN varies less significantly with distance than in a terrestrial network, resulting in RSRP, RSRQ results that will not accurately describe the actual coverage of the terminal in the network and thus not accurately reflect the channel quality. At this time, if the recovery configuration is performed based on RSRP and RSRQ results, the recovery configuration may be unreliable. For example, in the case of MCG failure, such as MCGRLF, if the MN still performs recovery configuration only by means of RSRP and RSRQ results reported by the terminal, a PCell with poor real channel quality may be configured, so that service experience of the terminal may be affected, and recovery configuration is unreliable; for another example, in the case of SCG failure, the MN performs recovery configuration by means of RSRP and RSRQ results reported by the terminal, which may result in configuring a PSCell with poor real channel quality, and may affect the service experience of the terminal, so that the recovery configuration is unreliable. It follows that how to improve the reliability of recovery configuration in MCG failure or SCG failure scenarios is a problem that needs to be solved.

Disclosure of Invention

The embodiment of the application provides an information transmission method, related equipment and medium, which are beneficial to improving reliability of recovery configuration in MCG failure and/or SCG failure scenes and improving terminal service experience.

In a first aspect, an embodiment of the present application provides an information transmission method, which is applied to a multi-connection system, where the multi-connection system includes a terminal, a Master Node (MN), and a Secondary Node (SN), a cell included in the MN is a cell in a primary cell group MCG, and a cell included in the SN is a cell in a Secondary cell group SCG, and the method includes:

the terminal determines that a target failure event exists, wherein the target failure event comprises an MCG failure event and/or an SCG failure event;

and under the condition that the target failure event is the MCG failure event, the terminal sends first failure information, wherein the first failure information carries any one or more of the following reporting parameters: the location information of the terminal, the first delay information, the first distance information, and/or,

and under the condition that the target failure event is the SCG failure event, the terminal sends second failure information, wherein the second failure information carries any one or more of the following reporting parameters: second delay information and second distance information.

In a second aspect, an embodiment of the present application provides an information transmission method, which is applied to a multi-connection system, where the multi-connection system includes a terminal, an MN, and an SN, where a cell included in the MN is a cell in an MCG, and a cell included in the SN is a cell in an SCG, and the method includes:

the network equipment receives first failure information and/or second failure information from a terminal, wherein the first failure information is sent by the terminal when a main MCG failure event exists, and the second failure information is sent by the terminal when an SCG failure event exists; wherein the network device is the MN or the SN, and the first failure information carries any one or more of the following reporting parameters: the location information, the first delay information and the first distance information of the terminal, and the second failure information carries any one or more of the following reporting parameters: second delay information, second distance information;

and the network equipment performs data recovery processing according to the first failure information and/or the second failure information.

In a third aspect, an embodiment of the present application provides a terminal, where the terminal has a function of implementing part or all of terminal behaviors in the above method. Alternatively, the terminal may implement the function by hardware, or may implement the function by executing corresponding software by hardware. The hardware or software may include one or more units or modules corresponding to the functions described above.

For example, in a possible design, the terminal comprises a processing unit and a communication unit. Wherein the processing unit may be configured to support the terminal to perform the corresponding functions of the above method. The communication unit may be used to support communication between the terminal and other devices. Optionally, the terminal may further comprise a storage unit, which may be coupled to the processing unit for storing program instructions and data etc. necessary for the terminal. In the alternative, the processing unit may be a processor, the communication unit may be a communication interface or transceiver, and the storage unit may be a memory.

In a fourth aspect, an embodiment of the present application provides a network device, where the network device has a function of implementing part or all of the behaviors of the network device in the above method. Alternatively, the functions may be implemented by hardware, or the functions may be implemented by hardware executing corresponding software. The hardware or software may include one or more units or modules corresponding to the functions described above.

For example, in a possible design, the network device comprises a communication unit and a processing unit. Wherein the processing unit may be configured to support the network device to perform the respective functions of the above-described method, and the communication unit may be configured to support communication between the network device and other devices. Optionally, the network device may further comprise a storage unit, which may be coupled to the processing unit, which holds the necessary program instructions and data etc. of the network device. In the alternative, the processing unit may be a processor, the communication unit may be a communication interface or transceiver, and the storage unit may be a memory.

In a fifth aspect, embodiments of the present application provide a terminal comprising a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor to implement part or all of the steps of the method of the first aspect of embodiments of the present application.

In a sixth aspect, embodiments of the present application provide a network device comprising a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor to implement some or all of the steps of the method of the second aspect of embodiments of the present application.

In a seventh aspect, embodiments of the present application provide a communication system, where the system includes the terminal and/or the network device of the above aspect. Optionally, the system may also include other devices that interact with the terminal or network device.

In an eighth aspect, embodiments of the present application provide a computer-readable storage medium storing a computer program that causes a computer to perform some or all of the steps as described in the method of the first aspect of the embodiments of the present application.

In a ninth aspect, embodiments of the present application provide a computer-readable storage medium storing a computer program that causes a computer to perform some or all of the steps as described in the method of the second aspect of embodiments of the present application.

In a tenth aspect, the present embodiments provide a computer program product, wherein the computer program product comprises a non-transitory computer readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps as described in the method of the first aspect of the present embodiments, or to cause a computer to perform some or all of the steps as described in the method of the second aspect of the present embodiments. For example, the computer program product may be a software installation package.

In the scheme provided by the embodiment of the application, the terminal can send the first failure information carrying the reporting parameters such as the position information, the time delay information, the distance information and the like of the terminal to the network side when detecting the MCG failure, and/or send the second failure information carrying the reporting parameters such as the time delay information, the distance information and the like to the network side when detecting the SCG failure, so that the network side can conveniently recover configuration, and the reliability of recovery configuration is improved.

Drawings

The drawings used in the description of the embodiments or the prior art will be described below.

FIG. 1a is a schematic diagram of a multi-connection system according to an embodiment of the present application;

FIG. 1b is a schematic diagram of an EN-DC system architecture according to an embodiment of the present application;

fig. 2a is a schematic diagram of a satellite network structure based on transparent forwarding according to an embodiment of the present application;

fig. 2b is a schematic diagram of a satellite network structure based on regenerative forwarding according to an embodiment of the present application;

fig. 3 is a schematic flow chart of an information transmission method according to an embodiment of the present application;

fig. 4 is a flow chart of another information transmission method according to an embodiment of the present application;

fig. 5 is an interaction schematic diagram of an information transmission method provided in an embodiment of the present application;

fig. 6 is an interaction schematic diagram of another information transmission method according to an embodiment of the present application;

fig. 7 is an interaction schematic diagram of another information transmission method according to an embodiment of the present application;

fig. 8 is an interaction schematic diagram of another information transmission method according to an embodiment of the present application;

fig. 9 is an interaction schematic diagram of another information transmission method according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a terminal according to an embodiment of the present application;

Fig. 11 is a schematic structural diagram of a network device according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of another terminal according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of another network device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

It is to be appreciated that the techniques of this application are particularly applicable to multi-connection systems, which may include a MN and at least one SN. The multi-connection system may relate to fifth generation mobile communication (the 5th Generation,5G) such as a New Radio/New air interface (NR) network, a long term evolution (Long Term Evolution, abbreviated as LTE) network, or a future communication network, for example, the MN may be an NR base station or an LTE base station; the SN may also be an NR base station, or may be an LTE base station, etc., without limitation.

Fig. 1a is a schematic diagram of a multi-connection system according to an embodiment of the present application. As shown in fig. 1a, the multi-connection system comprises a terminal, an MN and at least one SN (only one SN is shown in the figure), the terminal may communicate with the MN, the SN, respectively, such as the terminal may communicate with the SN directly, or through the MN and the SN, etc.

By way of example, the multi-connection system may be an LTE-NR dual connectivity (LTE-NR Dual Connectivity, EN-DC) system, i.e. with LTE base station as MN and NR base station as SN. Since complete NR coverage is difficult to acquire at the early deployment of NR, typical network coverage is wide area LTE coverage and island coverage mode of NR; moreover, a large amount of LTE is deployed below 6GHz, and few spectrum below 6GHz is available for 5G, so NR studies on spectrum applications above 6 GHz. However, due to limited high-band coverage and fast signal fading, a working mode of tight interworking (tight interworking) between LTE and NR, i.e. EN-DC, is proposed to achieve 5G network deployment and commercial application as soon as possible in order to protect mobile operators from early LTE investment. Fig. 1b is a schematic diagram of an EN-DC system according to an embodiment of the present application. As shown in fig. 1b, a network deployment and networking architecture of EN-DC is shown, where EN-gNB may be MN or SN. The MN mainly provides RRC control function and control plane leading to the CN; the SN may configure secondary signaling, such as SRB3, primarily to provide data transfer functionality. The primary cell of the MN is PCell and the primary cell of the SN is PSCell (primary secondary cell).

In this application, MN may also be called a master station, MN node, or other name, SN may also be called a secondary station, SN node, or other name, and this application is not limited thereto.

It will be appreciated that the technical solution of the present application may also be applied to other multi-connection systems, such as supporting other DC modes. For example, NE-DC,5GC-EN-DC, NR DC, etc., are not listed here. For EN-DC, the Core Network of the access Network connection is an evolved packet Core Network (Evolved Packet Core, EPC), while the Core Network of the other DC mode connection is a 5GC (5G Core Network).

In a multi-connection system, MCG failure and/or SCG failure may occur. Therefore, under the condition of MCG failure and/or SCG failure, the method and the device can report the reporting parameters such as the position information, the time delay information, the distance information and the like of the terminal to the network side so as to facilitate the network side to recover and configure according to the reporting parameters. For example, in case of MCG failure such as MCG RLF, the terminal may report at least one of reporting parameters such as location information, delay information, distance information, etc.; and/or, under the condition that the SCG fails, the terminal can report at least one of reporting parameters such as delay information, distance information and the like. The network equipment can perform data recovery processing based on the information, which is helpful for improving reliability of recovery configuration in MCG failure and/or SCG failure scenes and improving terminal service experience.

In some embodiments, the technical solution of the present application may also be applied in NTN scenarios. Among them, NTN generally provides communication services to terrestrial users by adopting a satellite communication manner. Satellites can be classified into Low Earth Orbit (LEO) satellites, medium Earth Orbit (MEO) satellites, (geosynchronous Orbit Geostationary Earth Orbit, GEO) satellites, high elliptical Orbit (High Elliptical Orbit, HEO) satellites, and the like according to the Orbit heights, which are not listed herein.

Wherein for LEO: the LEO has a height ranging from 500km to 1500km, with a corresponding track period of about 1.5 hours to 2 hours. The signal propagation delay for single hop communications between users is typically less than 20ms. The maximum satellite visibility time is 20 minutes. The signal propagation distance is short, the link loss is less, and the requirement on the transmitting power of the user terminal is not high.

For GEO: the GEO orbit height is 35786km, the period of rotation around the earth is 24 hours, and the signal propagation delay for single hop communication between users is typically 250ms.

Satellites cover the ground with multiple beams, for example, one satellite may form tens or even hundreds of beams to cover the ground, and one satellite beam may cover a ground area of tens to hundreds of kilometers in diameter. Thereby ensuring satellite coverage and improving the system capacity of the whole satellite communication system.

Alternatively, the network architecture of the satellite may include two, one is a transparent forwarding (transparent payload) satellite network architecture and one is a regenerative forwarding (regenerative payload) satellite network architecture. Fig. 2a is a schematic diagram of a satellite network structure based on transparent forwarding according to an embodiment of the present application. As shown in fig. 2a, in a transparent forwarding-based system, a satellite may act as a ground station, and a UE may communicate with a base station (e.g., a gNB) through a satellite and an NTN Gateway (Gateway) to implement Data interaction with a Data Network (Data Network) through a core Network (e.g., a 5G CN). Fig. 2b is a schematic diagram of a satellite network structure based on regenerative forwarding according to an embodiment of the present application. In a transparent forwarding based system, as shown in fig. 2b, the satellite acts as a base station; the satellite may be either a MN or SN, as in a multi-connection system. The wireless link between the satellite and NTN gateway (typically located on the ground) is feeder link.

Satellite communications have many unique advantages over terrestrial cellular communications, including wide coverage, high stability, and the like. For example, satellite communication is not limited by the region of the user, such as a general land communication cannot cover a region where communication equipment cannot be set up or communication coverage is not performed due to a sparse population, such as ocean, mountain, desert, etc., while for satellite communication, a satellite can cover a larger ground surface, and can perform orbital motion around the earth, so that in theory, every corner on the earth can be covered with satellite communication. For another example, satellite communication has great social value. Satellite communication can be covered in remote mountain areas, poor and backward countries or regions with lower cost, so that people in the regions enjoy advanced voice communication and mobile internet technology, and the digital gap between developed regions is reduced, and the development of the regions is promoted. For another example, the satellite communication distance is far, and the cost of communication is not increased obviously when the communication distance is increased. For another example, the satellite communication has high stability and is not limited by natural disasters.

Aiming at NTN scenes, the application can provide a method for performing SCG/MCG failure processing by a terminal auxiliary network, and the network side can restore and configure by introducing terminal position information into MCG failure information and/or introducing delay information and/or distance information related to the terminal position into SCG/MCG failure information. For example, the information can be combined to evaluate the channel quality, and then a cell with better channel quality is selected for data recovery processing. Compared with the data recovery processing which only depends on the RSRP and the RSRQ, the method can effectively reduce the error on channel quality judgment caused by the RSRP and the RSRQ measurement error, thereby being beneficial to the reliability of recovery configuration in MCG failure and/or SCG failure scenes in NTN and further improving the communication efficiency.

Alternatively, the scenario of SCG failure may include any of the following: SCG RLF; SN addition/change failure; for dual connectivity modes such as EN-DC, NGEN-DC, and NR DC, SCG configuration using SRB3 transmission fails or condition-based PSCell change (Conditional PSCell Change, CPC) configuration fails; SCG RRC integrity verification for SRB3 fails for dual connectivity modes such as EN-DC, NGEN-DC, and NR DC; for dual connectivity modes such as EN-DC, NGEN-DC and nrdc, continuous Uplink (UL) on PSCell failed with listen-before-transmit (Listen Before Talk, LBT); for an access backhaul integrated mobile terminal (Integrated Access and Backhaul-Mobile Termination, IAB-MT), receiving a BH RLF indication from an SCG; CPC fails to execute.

In some embodiments, the terminal may initiate a radio resource control (Radio Resource Control, RRC) connection re-establishment procedure in case the MCG of the terminal experiences RLF. Considering that cell selection, random access, etc. are required in the RRC connection reestablishment process, the time is long, and data transmission is interrupted, so that fast MCG failure recovery is introduced in the MR-DC enhancement item of R16. For the terminal configured with MR-DC, when the terminal detects MCG RLF and the SCG link is available, the information reporting and recovery of MCG failure can be carried out through the SCG link, so that the triggering of the RRC connection reestablishment process is avoided. During fast MCG link recovery, the terminal will suspend MCG transmission for all radio bearers and send a first failure information, such as an MCGFailureInformation message, to the MN via the SN. Alternatively, the first failure information, such as an MCGFailureInformation message, may be transmitted over a split signaling radio bearer 1, such as split SRB1, with its secondary group corresponding leg, such as SCG leg, or signaling radio bearer 3, such as SRB 3. After receiving the MCGFailureInformation message, the MN may perform a data recovery process, such as sending an RRC reconfiguration message, such as an rrcrecon configuration message, to the terminal, a mobility command message from NR, such as a mobility from nrcommand message, from EUTRA, such as a mobility from fram command message, or an RRC release message, such as an RRCRelease message, optionally transmitted through SCG leg or SRB3 of split SRB 1. If the terminal receives the rrcrecon configuration message, the mobile from nrcommand message or the mobile from eutra command message, the terminal may resume MCG transmission of all radio bearers. If the terminal receives the RRCRelease message, the terminal may release all radio bearers and configurations.

Alternatively, if the terminal does not receive the rrcrecon configuration message, the mobile from nrcommand message and the mobile from eumtracommand message within a period of time after initiating the fast MCG recovery, the terminal may initiate the RRC connection reestablishment procedure.

Further alternatively, the terminal may carry the measurement result obtained based on the measurement configuration issued by the MN and the SN in the MCGFailureInformation message. In case of triggering an MCG failure, the terminal may still maintain the measurement configuration from the MN and SN, and if possible, the terminal may continue to perform measurements based on the measurement configuration.

In some embodiments, in the event of SCG failure, if MCG transmission of a radio bearer is not suspended, the terminal may suspend SCG transmission of all radio bearers while reporting SCG failure to the MN through a scgfailurenformation message, instead of directly triggering the RRC connection reestablishment procedure. If SCG failure is detected with MCG transmission of all radio bearers suspended, the terminal may initiate an RRC connection reestablishment procedure.

Alternatively, in some embodiments, in the event of an SCG failure, the terminal may still maintain measurement configurations from the MN and SN, based on which the terminal may continue to perform measurements. Further, the terminal may still continue to report the measurement result based on the SN measurement configuration forwarded by the MN after the SCG failure. For example, the terminal may carry the measurement result obtained based on the measurement configuration issued by the MN and the SN in a second failure information such as a SCGFailureInformation message. The MN can perform data recovery processing based on the SCGFailureInformation message, such as deciding whether to hold, change, or release the SCG. Further alternatively, the MN can choose to forward SN configuration based measurements and SCG failure types to the old SN and/or the new SN.

In this application, the network device may be an entity on the network side for sending or receiving information, for example, may be a base station, where the base station may be used to communicate with one or more terminals, and may also be used to communicate with one or more base stations with a part of terminal functions (for example, communications between macro base stations and micro base stations). The base station may be an evolved base station (Evolutional Node B, eNB) in a long term evolution (Long Term Evolution, LTE) system, or may be a base station gNB in a 5G system, NR system, etc., which are not listed here. Alternatively, the network device may be a transmission Point (transmission Point, TP), an Access Point (AP), a transceiver Point (transmission and receiver Point, TRP), a relay device, a Central Unit (CU), or other network devices with base station functions, etc., which is not limited in this application. For example, the network device of the present application may be a MN or SN.

In the present application, the terminal may be a device having a communication function, for example, may be an in-vehicle device, a wearable device, a handheld device (such as a smart phone), or the like. The terminal may also be referred to by other names, such as User Equipment (UE), subscriber unit, mobile station (mobile unit), terminal Equipment, etc., without limitation. Alternatively, the terminal may be a global navigation satellite system (global navigation satellite system, GNSS) enabled terminal.

It will be understood that the communication system shown in fig. 1a to 1b, the satellite network architecture shown in fig. 2a to 2b, etc. are only examples, and are not limiting, and those skilled in the art will appreciate that the technical solutions provided in this application are equally applicable to similar technical problems with evolution of the network architecture and appearance of new service scenarios.

Referring to fig. 3, fig. 3 is a flowchart of an information transmission method according to an embodiment of the present application. The method of the present embodiment may be applied to the above-described multi-connection system, and may be specifically applied to the above-described terminal. The multi-connection system comprises a terminal, an MN and an SN, wherein a cell corresponding to the MN is a cell in an MCG, and a cell corresponding to the SN is a cell in an SCG. As shown in fig. 3, the method may include:

301. the terminal determines that a target failure event exists, wherein the target failure event comprises an MCG failure event and/or an SCG failure event.

It is understood that the target failure event may also be called a remaining name, such as a failure event, a cell group failure, etc., and embodiments of the present application are not limited. The MCG failure event may also be called an MCG failure or the remaining name; wherein the MCG failure event may be an MCG RLF event, which may also be called MCG RLF or the remaining names; the SCG failure event may also be called an SCG failure or the remaining name, and embodiments of the present application are not limited.

In the multi-connection system, the terminal may detect a target failure event such as an MCG failure event and/or an SCG failure event, and in the case of detecting an MCG failure event such as an MCG RLF event, step 302 may be executed; and/or, in case an SCG failure event is detected, step 303 may be performed. That is, the present application may only improve the information reporting of the MCG failure, such as the MCG RLF scene, may only improve the information reporting of the SCG failure scene, or may improve both the information reporting of the MCG failure scene and the SCG failure scene, which is not limited in this application.

302. If the target failure event is an MCG failure event, the terminal sends first failure information, where the first failure information carries any one or more of the following reporting parameters: position information of the terminal, first delay information and first distance information.

Wherein the location information may be used to indicate the location of the terminal, the first delay information may be used to indicate the delay of the terminal to the base station and/or satellite, and the first range information may be used to indicate the range of the terminal to the satellite and/or base station and/or terrestrial reference point. The first failure information may also be called a first failure message, MCG failure information, MCG failure message, or the remaining names, which are not limited in this application.

That is, in the case that an MCG failure such as an MCG RLF occurs or is detected, the terminal may report reporting parameters such as location information, delay information, distance information, etc. of the terminal to the network side, so that the network side performs data recovery processing based on the reporting parameters. The terminal may be a terminal configured for fast MCG link recovery. For example, the terminal may send the first failure information to the MN through the SN.

Optionally, the first delay information may include any one or more of the following: a Timing Advance (TA) value from terminal to base station, a Round-Trip Time (RTT) value from terminal to base station, a TA value from terminal to satellite, and an RTT value from terminal to satellite. Wherein the base station may comprise any one or more of the following: the MN, SN, neighbor cell base station, etc.; the satellite may refer to a serving satellite, which may be a satellite in the multi-connection system, and/or a neighboring cell satellite.

Optionally, the first distance information may include any one or more of the following: the distance of the terminal to the base station, the distance of the terminal to the satellite, the distance of the terminal to the cell ground reference point. Wherein the base station may comprise any one or more of the following: MN, SN, neighbor cell base station; the satellite may be a service satellite and/or a neighboring cell satellite, and the service satellite may be a satellite in the multi-connection system; the cell ground reference point may be a cell ground reference point corresponding to the satellite.

Optionally, the first failure information may further include a reference signal reception parameter. For example, the reference signal reception parameters may include one or more of RSRP, RSRQ, etc., which are not limited in this application. Further optionally, the first failure information may further include failure cause information, and so on.

303. In the case that the target failure event is an SCG failure event, the terminal transmits second failure information, where the second failure information carries any one or more of the following information: second delay information and second distance information.

That is, in the case that SCG failure occurs or is detected, the terminal may report reporting parameters such as delay information, distance information, etc. to the network side, so that the network side performs data recovery processing based on the reporting parameters. For example, the terminal may send second failure information to the MN. The second failure information may also be called a second failure message, SCG failure information, SCG failure message, or other names, which are not limited in this application.

Optionally, the second delay information may be used to indicate a delay of the terminal to the base station and/or satellite, for example, the second delay information may include any one or more of: a terminal-to-base station TA value, a terminal-to-base station RTT value, a terminal-to-satellite TA value, a terminal-to-satellite RTT value. Wherein the base station may comprise any one or more of the following: the MN, SN, neighbor cell base station, etc.; the satellite may refer to a serving satellite, which may be a satellite in the multi-connection system, and/or a neighboring cell satellite.

Optionally, the second distance information may be used to indicate the distance of the terminal to the base station and/or satellite and/or ground reference point, for example, the second distance information may include any one or more of the following: the distance of the terminal to the base station, the distance of the terminal to the satellite, the distance of the terminal to the cell ground reference point. Wherein the base station may comprise any one or more of the following: MN, SN, neighbor cell base station; the satellite may be a service satellite and/or a neighboring cell satellite, the service satellite being a satellite in the multi-connection system; the cell ground reference point may be a cell ground reference point corresponding to the satellite.

Optionally, the second failure information may further include one or more of reference signal receiving parameters, such as RSRP, RSRQ, etc., which are not described herein. Further optionally, the first failure information may further include failure cause information, and so on.

In one possible implementation, the terminal may receive indication information from the network device, which may be used to indicate whether the terminal is allowed to report the target parameter. Alternatively, the target parameter may be one or more of location information, time delay information, and distance information. That is, the indication information may be used to indicate the type of parameters that are allowed to be reported. Further, the terminal may determine the first failure information and/or the second failure information according to the indication information. For example, for the MCG failure scenario, the target parameter may be one or more of location information, delay information, and distance information, and the terminal may determine first failure information according to the target parameter, for example, if the indication information indicates that the target parameter is allowed to be reported, and the terminal acquires the target parameter, the terminal carries the target parameter in the first failure information. For another example, for the SCG failure scenario, the target parameter may be one or more of delay information and distance information, and the terminal may determine second failure information according to the target parameter, for example, if the indication information indicates that the target parameter is allowed to be reported, and the terminal acquires the target parameter, the terminal carries the target parameter in the second failure information.

For example, the target failure event is an MCG failure such as an MCG RLF event, the target parameter is location information, and the terminal may receive indication information from the network device, where the indication information may be used to indicate whether the terminal is allowed to report the location information. Therefore, when the indication information indicates that the reporting of the position information is allowed and the terminal acquires the position information, the terminal can report the position information of the first failure information carrying terminal. For example, the terminal may send the first failure information carrying the location information to the MN through the SN.

For another example, the indication information may be further used to indicate whether to allow the terminal to report delay information; for another example, the indication information may also be used to indicate whether to allow the terminal to report the distance information, and so on, which are not listed herein.

Alternatively, the indication information referred to in the present application may be a system message, or may be dedicated RRC signaling, for example, the RRC signaling may be an RRC reconfiguration message. That is, whether the terminal can carry the target parameter in the first failure information and/or the second failure information, such as the location information of the terminal, that is, whether the terminal carries the target parameter when the MCG failure scene and/or the SCG failure scene performs information reporting, may be controlled by a system message or a terminal-specific RRC signaling.

In a possible implementation manner, the terminal may receive the reporting auxiliary information from the network device, and further the terminal may determine the first failure information and/or the second failure information according to the reporting auxiliary information, that is, may determine the MCG failure, such as failure information reported by an MCG RLF scene and/or an SCG failure scene, according to the reporting auxiliary information, for example, determine the value of the reporting parameter in the first failure information and/or the second failure information according to the reporting auxiliary information.

Optionally, the reporting auxiliary information includes any one or more of the following: ephemeris information for satellites associated with one or more cells, terrestrial reference point information for one or more cells. Wherein the one or more cells may include one or more of a cell in an MCG, a cell in an SCG, a neighbor cell. Alternatively, the ground reference point may refer to a cell center point, and may refer to the remaining reference points.

In a possible implementation manner, the terminal may further receive reporting condition information from the network device, so that the terminal may determine the first failure information and/or the second failure information according to the reporting condition information, that is, may determine MCG failure such as failure information reported by an MCG RLF scene and/or an SCG failure scene according to the reporting condition information, for example, determine a value of a reporting parameter in the first failure information and/or the second failure information according to the reporting condition information, and determine a reported cell according to the reporting condition information, and so on.

Optionally, the reporting condition indicated by the reporting condition information includes any one or more of the following: the distance from the terminal to the satellite is smaller than or equal to a first distance threshold, the distance from the terminal to a cell ground reference point is smaller than or equal to a second distance threshold, the TA value from the terminal to the base station is smaller than or equal to a first TA threshold, the RTT value from the terminal to the base station is smaller than or equal to a first RTT threshold, the TA value from the terminal to the satellite is smaller than or equal to a second TA threshold, and the RTT value from the terminal to the satellite is smaller than or equal to a second RTT threshold. Wherein the base station may comprise any one or more of the following: MN, SN, neighbor cell base station; the satellite may be the serving satellite and/or a neighboring cell satellite, and the serving satellite may be a satellite in a multi-connection system.

Or, optionally, the reporting condition indicated by the reporting condition information includes any one or more of the following: the distance from the terminal to the satellite is larger than or equal to a first distance threshold, the distance from the terminal to a cell ground reference point is larger than or equal to a second distance threshold, the TA value from the terminal to the base station is larger than or equal to a first TA threshold, the RTT value from the terminal to the base station is larger than or equal to a first RTT threshold, the TA value from the terminal to the satellite is larger than or equal to a second TA threshold, and the RTT value from the terminal to the satellite is larger than or equal to a second RTT threshold. Wherein the base station may comprise any one or more of the following: the MN, the SN and the neighbor cell base station; the satellite may be the serving satellite and/or a neighboring cell satellite, and the serving satellite may be a satellite in a multi-connection system.

In one possible implementation manner, the terminal may determine, according to the reporting condition information, a cell that meets the reporting condition indicated by the reporting condition information, where the first failure information and/or the second failure information carries a reporting parameter of the cell that meets the reporting condition, and does not carry a reporting parameter of the cell that does not meet the reporting condition. The reporting parameters include time delay information and/or distance information. Thereby being beneficial to reducing the size of the information transmission data quantity and saving the cost.

In one possible implementation, one or more of the indication information, the reporting assistance information, and the reporting condition information may also be preconfigured and may be stored in the terminal.

In the embodiment of the application, the terminal may send the first failure information carrying the reporting parameters such as the terminal position information, the time delay information, the distance information and the like to the network side when detecting the MCG failure, and/or send the second failure information carrying the reporting parameters such as the time delay information, the distance information and the like to the network side when detecting the SCG failure, so as to facilitate the recovery configuration of the network side, thereby being beneficial to improving the reliability of the recovery configuration.

Referring to fig. 4, fig. 4 is a flowchart of another information transmission method according to an embodiment of the present application. The method of the present embodiment may be applied to the above-mentioned multi-connection system, and may be specifically applied to the above-mentioned network device. The multi-connection system comprises a terminal, an MN and an SN, wherein a cell corresponding to the MN is a cell in an MCG, a cell corresponding to the SN is a cell in an SCG, and the network equipment can be the MN or the SN. As shown in fig. 4, the method may include:

401. The network equipment receives first failure information and/or second failure information from a terminal, wherein the first failure information is sent by the terminal when an MCG failure event exists, and the second failure information is sent by the terminal when the SCG failure event exists; wherein the first failure information carries any one or more of the following: the location information, the first delay information and the first distance information of the terminal, and the second failure information carries any one or more of the following information: second delay information and second distance information.

The description of the first failure information and/or the second failure information may refer to the related description of the above embodiment, which is not repeated herein.

402. And the network equipment performs data recovery processing according to the first failure information and/or the second failure information.

The data recovery process may also be called recovery configuration, recovery process, etc., which are not limited in this application.

Optionally, the network device may be an MN, for example, for MCG failure such as MCG RLF scenario, the MN may receive, through the SN, first failure information sent by the terminal; as another example, for an SCG failure scenario, the MN may receive second failure information sent by the terminal. The network device may also be an SN, and for MCG failure, for example, an MCG RLF scenario, the SN may receive first failure information sent by the terminal, and send the first failure information to the MN, where the MN performs recovery configuration.

In one possible implementation, the network device may also send indication information to the terminal.

In one possible implementation, the network device may also send reporting assistance information to the terminal.

In one possible implementation, the network device may also send reporting condition information to the terminal.

The description of the indication information, the reporting auxiliary information, and the reporting condition information may refer to the related description of the above embodiments, which is not repeated herein.

Optionally, the reporting auxiliary information and the reporting condition information related to the application may be sent by one message, or may be sent by different messages. For example, the message may be a system message or dedicated RRC signaling, etc., i.e., may be sent via the system message or dedicated RRC signaling. Alternatively, the network device may also send only one of the reporting auxiliary information or the reporting condition information, or neither the reporting auxiliary information nor the reporting condition information may be sent. The application is not limited as to whether the reporting auxiliary information and the reporting condition information are issued or not and the issuing mode.

In the embodiment of the application, the network device may receive the first failure information carrying the reporting parameters such as the terminal position information, the time delay information, the distance information and the like sent by the terminal in response to the failure of the MCG, and/or the network device may receive the second failure information carrying the reporting parameters such as the time delay information, the distance information and the like sent by the terminal in response to the failure of the SCG, so as to perform recovery configuration based on the reporting parameters carried in the information, which is helpful for improving the reliability of the recovery configuration.

Referring to fig. 5, fig. 5 is an interaction schematic diagram of an information transmission method according to an embodiment of the present application. The method of the embodiment can be applied to the multi-connection system, and the multi-connection system comprises a terminal, an MN and an SN, wherein a cell corresponding to the MN is a cell in an MCG, and a cell corresponding to the SN is a cell in the SCG. Taking a terminal as an example of UE, the present embodiment describes an MCG failure such as recovery configuration in an MCG RLF scenario. As shown in fig. 5, the method may include:

501. the UE determines that an MCG RLF event exists.

Wherein, the UE may be a UE configured with fast MCG link recovery.

502. The UE sends first failure information to the SN, wherein the first failure information carries any one or more of the following reporting parameters: position information, time delay information and distance information.

503. The SN sends first failure information to the MN.

The UE may detect whether MCG RLF occurs, and if MCG RLF is detected, the UE configured with fast MCG link recovery may send first failure information to the MN through the SN (or SCG), that is, the UE may send first failure information carrying one or more reporting parameters of location information, delay information, and distance information to the SN, the SN receives the first failure information, and the SN may send the first failure information to the MN. Alternatively, the first failure information may be an mcgfailurenformation message.

The description of the location information, the time delay information, and the distance information may refer to the related description of the above embodiment, for example, refer to the related description of the location information, the first time delay information, and the first distance information, which are not described herein.

504. The MN performs data recovery processing according to the first failure information.

The MN may receive the first failure information sent by the SN, and may perform data recovery processing based on the first failure information.

Optionally, the policy corresponding to the data recovery process may be any one or more of the following: the RRC reconfiguration message is sent such as rrcrecon configuration message, mobilityfrommrcommand message, mobilityfrometracommand message, RRCRelease message.

After determining the policy corresponding to the data recovery process, the MN may send the policy to the SN, the SN may receive the policy, and the SN may send the policy to the UE. And the UE may process according to the policy after receiving the policy.

In one possible implementation, the MN or SN may send indication information to the UE, and the UE may receive indication information from the MN or SN, where the indication information may be used to indicate whether to allow the UE to report the target parameter, and further the UE may determine the parameter carried by the first failure information according to the indication information. Alternatively, the target parameter may be one or more of location information, time delay information, and distance information. Reference may be made specifically to the relevant descriptions of the above embodiments, which are not repeated here.

In one possible implementation, the MN or SN may send reporting assistance information and/or reporting condition information to the UE, and the UE may receive the reporting assistance information and/or reporting condition information from the MN or SN, and further the UE may determine the first failure information according to the reporting assistance information and/or the reporting condition information, for example, determine a value of a reporting parameter in the first failure information, and for example, determine a cell of the reporting parameter, and so on. Reference may be made specifically to the relevant descriptions of the above embodiments, which are not repeated here.

In the embodiment of the application, when the UE detects the MCG RLF, the SN may send first failure information carrying reporting parameters such as location information, delay information, distance information, etc. of the UE to the MN, and the MN may perform recovery configuration based on the reporting parameters carried by the first failure information, which helps to improve reliability of recovery configuration in the MCG RLF scenario.

Referring to fig. 5 in combination with fig. 6, fig. 6 is an interaction schematic diagram of another information transmission method according to an embodiment of the present application. In this embodiment, for the UE configured with the fast MCG link recovery, after the UE triggers the fast MCG link recovery, the UE may report UE location information simultaneously when the UE fails to report the MCG to the MN through the SCG. As shown in fig. 6, the method may include:

601. The MN sends an RRC reconfiguration message to the UE, which may be used to indicate whether reporting of location information is allowed. In this embodiment, the RRC reconfiguration message may indicate that reporting of location information is allowed.

In some embodiments, the MN may send indication information, such as an RRC reconfiguration message, to the UE to indicate whether the UE is allowed to report location information. For example, the parameter obtainCommonlocation may be included in the other Config IE, and whether to allow reporting of location information may be indicated by the obtainCommonlocation parameter in the other Config IE. The UE may receive the RRC reconfiguration message.

602. The UE detects MCG RLF.

In case that the UE detects the MCG RLF, the UE may determine first failure information such as an mcgfailurenformation message according to an indication of the RRC reconfiguration message. For example, the RRC reconfiguration message indicates that the UE is allowed to report location information, and the UE may carry the location information of the UE in the MCGFailureInformation message. In another example, if the RRC reconfiguration message indicates that reporting of location information is not allowed, the UE does not carry the location information of the UE in the MCGFailureInformation message. That is, whether the UE can carry UE location information in the MCGFailureInformation message may depend on the network configuration, i.e., the UE can carry UE location information in the MCGFailureInformation message only if the network allows the UE to report location information.

In other alternative embodiments, the UE may carry the UE location information in the MCGFailureInformation message as long as the UE has available location information, i.e. the UE may not be controlled by the network carrying the UE location information in the MCGFailureInformation message.

Optionally, the MCGFailureInformation message may also carry other information, such as RSRQ, RSRP, etc.

603. The UE transmits an MCGFailureInformation message to the SN, the MCGFailureInformation message including UE location information.

Alternatively, the UE may send MCG failure information, such as an mcgfailurenformation message, to the SN through SCG leg of split SRB1 or SRB 3. UE location information (e.g., locationInfo) may be included in the MCGFailureInformation message. For example, UE location information may be contained in failurereport mcg.

It is understood that the UE of the present embodiment may be a GNSS-capable UE.

604. The SN sends an mcgfailurenformation message to the MN.

The SN, after receiving the mcgfairesunformation message from the UE, may forward the received mcgfairesunformation message to the MN, including the UE location information in the mcgfairesunformation message.

605. The MN sends an MCG failure recovery message to the SN.

After receiving the MCGFailureInformation message, the MN may decide, according to location information, for example, RSRP, etc. reported by the UE in combination with the UE location information, whether to send an rrcreconditionable message, a mobilityfrommrcommand message, a MobilityFromEUTRACommand message to the UE, so that the UE quickly recovers the MCG link, or send an RRCRelease message to the UE, so as to instruct the UE to release all radio bearers and configurations. That is, the MN may determine an MCG failure recovery message, which may be an rrcrecon configuration message, a mobilityfrommrcommand message, a MobilityFromEUTRACommand message, or an RRCRelease message, etc. Further, the MN can send an MCG failure recovery message to the SN.

606. The SN sends an MCG failure recovery message to the UE.

The SN may receive the MCG failure recovery message from the MN and may send the MCG failure recovery message to the UE.

607. And the UE performs recovery processing according to the MCG failure recovery message.

After the UE receives the MCG failure recovery message from the SN, an MCG recovery process may be performed, such as recovering the MCG link or releasing all radio bearers and configurations, and so on.

In this embodiment of the present application, a network device, such as an MN, may send indication information, such as an RRC reconfiguration message, to a UE, so that when the UE detects an MCG RLF, where the RCC reconfiguration message indicates that the UE is allowed to report location information, and the UE acquires the location information, an mcgfairreinformation message carrying the location information of the UE may be sent to the MN through an SN, and further, the MN may perform recovery configuration based on the UE location information carried by the mcgfairreinformation message, thereby improving reliability of recovery configuration in an MCG RLF scenario based on the UE location information.

Referring to fig. 5 together with fig. 7, fig. 7 is an interaction schematic diagram of another information transmission method according to an embodiment of the present application. In this embodiment, for the UE configured with the fast MCG link recovery, after the UE triggers the fast MCG link recovery, the UE may report the location-related delay information and/or distance information when reporting the MCG failure to the MN through the SCG. As shown in fig. 7, the method may include:

701. The MN or SN sends measurement configuration information to the UE, including reporting assistance information and/or reporting condition information.

Alternatively, the measurement configuration information may be a system message such as SIB message or dedicated RRC signaling. That is, reporting assistance information and/or reporting condition information may be configured through a system message such as SIB message or may be configured through dedicated RRC signaling.

The description of reporting the auxiliary information and reporting the condition information may refer to the related description of the above embodiment, which is not repeated here.

702. The UE detects MCG RLF. The UE may determine, according to the measurement configuration information, a value of a reporting parameter carried by the MCGFailureInformation message, where the reporting parameter includes delay information and/or distance information.

The UE may receive measurement configuration information from the MN or SN, and may further determine reporting parameters carried by the MCGFailureInformation message, such as determining specific delay information and/or distance information.

For example, the mcgfailurenformation message may carry any one or more of the following: distance from UE to satellite, distance from UE to cell ground reference point, TA value from UE to base station or cell, RTT value from UE to base station or cell, TA value from UE to satellite, RTT value from UE to satellite.

Optionally, if the network configures the reporting condition information of the location related delay information and/or the distance, the UE may also report only the information of those cells that meet the reporting condition, such as only the delay information and/or the distance information of those cells that meet the reporting condition, and so on.

703. The UE sends an MCGFailureInformation message to the SN, the MCGFailureInformation message carrying delay information and/or distance information.

Alternatively, the UE may send MCG failure information, such as an mcgfailurenformation message, to the SN through SCG leg of split SRB1 or SRB 3. The MCGFailureInformation message may include delay information and/or distance information related to the UE location. The MCGFailureInformation message may also include one or more cell-related RSRP, RSRQ measurements, and so forth.

704. The SN sends an mcgfailurenformation message to the MN.

The SN may receive the MCGFailureInformation message from the UE and may forward the received MCGFailureInformation message to the MN. The MCGFailureInformation message includes delay information and/or distance information related to the UE position.

705. The MN sends an MCG failure recovery message to the SN.

After receiving the MCGFailureInformation message, the MN may further combine with RSRP, etc. reported by the UE according to the delay information and/or the distance information, and decide whether to send an rrcreconditionable message, a mobile fromnrcommand message, a mobile fromeumtracommand message to the UE, so that the UE quickly recovers the MCG link, or send an RRCRelease message to the UE, so as to instruct the UE to release all radio bearers and configurations. That is, the MN may determine an MCG failure recovery message, which may be an rrcrecon configuration message, a mobilityfrommrcommand message, a MobilityFromEUTRACommand message, or an RRCRelease message, etc. Further, the MN can send an MCG failure recovery message to the SN.

706. The SN sends an MCG failure recovery message to the UE.

707. And the UE performs recovery processing according to the MCG failure recovery message.

The descriptions of steps 706-707 may refer to the descriptions related to steps 606-607 in the above embodiments, which are not repeated herein.

In the embodiment of the application, the MN or the SN may send the reporting auxiliary information and/or the reporting condition information to the UE, so that the UE may determine, based on the reporting auxiliary information and/or the reporting condition information, delay information and/or distance information carried by the mcgfairwortheinformation message, and may send, to the MN, the mcgfairwortheinformation message carrying the delay information and/or the distance information through the SN, and further the MN may perform recovery configuration based on the delay information and/or the distance information carried by the mcgfairairairwortheinformation message, thereby improving reliability of recovery configuration in an MCG RLF scene based on the delay information and/or the distance information.

Referring to fig. 8, fig. 8 is an interaction schematic diagram of another information transmission method according to an embodiment of the present application. The method of the embodiment can be applied to the multi-connection system, and the multi-connection system comprises a terminal, an MN and an SN, wherein a cell corresponding to the MN is a cell in an MCG, and a cell corresponding to the SN is a cell in the SCG. Taking a terminal as an example of UE, the present embodiment describes recovery configuration in an SCG failure scenario. As shown in fig. 8, the method may include:

801. The UE determines that there is an SCG failure event.

802. The UE sends second failure information to the MN, wherein the second failure information carries any one or more of the following reporting parameters: delay information and distance information.

The UE may detect whether SCG failure occurs, and if SCG failure is detected, the UE may send second failure information to the MN, that is, the UE may send second failure information carrying one or more reporting parameters of delay information and distance information to the MN. Alternatively, the second failure information may be a SCGFailureInformation message.

The description of the delay information and the distance information may refer to the related description of the above embodiment, for example, refer to the related description of the above location information, the second delay information and the second distance information, which are not described herein.

803. And the MN performs data recovery processing according to the second failure information.

Optionally, the policy corresponding to the data recovery process may be any one of the following: maintaining the SCG of the UE, changing the SCG of the UE, and releasing the SCG of the UE.

After determining the policy corresponding to the data recovery process, the MN may send the policy to the UE. And the UE can perform corresponding processing according to the strategy after receiving the strategy.

In one possible implementation, the MN or SN may send indication information to the UE, and the UE may receive indication information from the MN or SN, where the indication information may be used to indicate whether to allow the UE to report the target parameter, and further the UE may determine the parameter carried by the second failure information according to the indication information. Alternatively, the target parameter may be one or more of delay information and distance information. Reference may be made specifically to the relevant descriptions of the above embodiments, which are not repeated here.

In one possible implementation, the MN or SN may send reporting auxiliary information and/or reporting condition information to the UE, and the UE may receive the reporting auxiliary information and/or reporting condition information from the MN or SN, and further the UE may determine the second failure information according to the reporting auxiliary information and/or the reporting condition information, for example, determine a value of a reporting parameter in the second failure information, and for example, determine a cell in which reporting of the parameter is performed, and so on. Reference may be made specifically to the relevant descriptions of the above embodiments, which are not repeated here.

In the embodiment of the application, when the UE detects the SCG failure, the UE may send second failure information carrying the reporting parameters such as the delay information and/or the distance information to the MN, and the MN may perform recovery configuration based on the reporting parameters carried by the second failure information, which is helpful for improving reliability of recovery configuration in the SCG failure scenario.

Referring to fig. 8 in combination with fig. 9, fig. 9 is an interaction schematic diagram of another information transmission method according to an embodiment of the present application. In this embodiment, after the UE triggers the SCG failure, the UE may report the location-related delay information and/or distance information when reporting the SCG failure to the MN. As shown in fig. 9, the method may include:

901. the UE detects SCG failure.

Alternatively, the MN or SN may send reporting assistance information and/or reporting condition information to the UE, such as by indicating reporting assistance information and/or reporting condition information to the UE via measurement configuration information, which the UE may receive from the MN or SN.

The measurement configuration information, the reporting auxiliary information and/or the reporting condition information may refer to the related descriptions of the above embodiments, which are not repeated herein.

902. The UE sends a SCGFailureInformation message to the MN, the SCGFailureInformation message carrying delay information and/or distance information.

And the UE can send an SCGFailureinformation message carrying time delay information and/or distance information to the MN under the condition that the SCG failure is detected. If the UE receives the reporting auxiliary information and/or the reporting condition information from the MN or SN, the UE may further determine a reporting parameter carried by the SCGFailureInformation message based on the reporting auxiliary information and/or the reporting condition information, for example, determine a value of the delay information and/or the distance information.

For example, any one or more of the following may be carried in the scgfailurenformation message: distance from UE to satellite, distance from UE to cell ground reference point, TA value from UE to base station or cell, RTT value from UE to base station or cell, TA value from UE to satellite, RTT value from UE to satellite.

Optionally, the SCGFailureInformation message may further include one or more RSRP and RSRQ measurement results related to the cell. That is, when the UE fails to report SCG to the MN, in addition to reporting RSRP and RSRQ measurement results, the UE may report location-related delay information and/or distance information.

The delay information and/or the distance information may refer to the related descriptions of the above embodiments, which are not repeated herein.

903. The MN sends a SCGFailureinformation message to the SN.

904. The SN sends an SN response to the MN.

Optionally, the MN can forward to the SN a received SCGFailureInformation message from the UE, the SCGFailureInformation message including UE location-related latency information and/or distance information. Further alternatively, the SN may respond to the MN after receiving the scgfailueinformation message, such as replying to the MN with a response message.

905. The MN sends an RRC reconfiguration message to the UE, the RRC reconfiguration message indicating to hold, change or release SCG.

After receiving the SCGFailureInformation message, the MN may further determine whether to hold, change or release the SCG of the UE according to the delay information and/or the distance information, for example, in combination with RSRP, etc. reported by the UE.

906. And the UE performs recovery processing according to the MN instruction.

The UE may receive the RRC reconfiguration message from the MN and maintain, change or release the SCG according to an indication of the RRC reconfiguration message.

In the embodiment of the application, the UE may send the SCGFailureInformation message carrying the time delay information and/or the distance information to the MN when the SCG failure is detected, for example, the time delay information and/or the distance information carried by the SCGFailureInformation message may be determined based on the reporting auxiliary information and/or the reporting condition information, and further the MN may perform recovery configuration based on the time delay information and/or the distance information carried by the SCGFailureInformation message, so that the reliability of recovery configuration in the SCG failure scene may be improved based on the time delay information and/or the distance information.

It should be understood that the foregoing method embodiments are all exemplary of the information transmission method of the present application, and the descriptions of the embodiments are focused on, where a portion of one embodiment is not described in detail, and reference may be made to related descriptions of other embodiments.

Fig. 10 is a schematic structural diagram of a terminal according to an embodiment of the present application. As shown in fig. 10, the terminal 1000 may include: a processor 1010, a memory 1020, a communication interface 1030, and one or more programs 1021, wherein the one or more programs 1021 are stored in the memory 1020 and are configured to be executed by the processor 1010. The terminal can be applied to a multi-connection system, the multi-connection system comprises the terminal, an MN and an SN, wherein a cell included in the MN is a cell in an MCG, and a cell included in the SN is a cell in the SCG. Wherein the program includes instructions for performing some or all of the steps of the information transmission method described above, such as instructions for a terminal to perform some or all of the steps of the information transmission method described above, the processor 1010 may invoke the one or more programs to perform some or all of the steps of the information transmission method described above. For example, the processor 1010 may call the one or more programs to perform the following steps:

determining that a target failure event exists, wherein the target failure event comprises an MCG failure event and/or an SCG failure event;

in the case that the target failure event is the MCG failure event, sending, through the communication interface 1030, first failure information, where the first failure information carries any one or more of the following reporting parameters: the location information of the terminal, the first delay information, the first distance information, and/or,

And if the target failure event is the SCG failure event, sending second failure information through the communication interface 1030, where the second failure information carries any one or more of the following reporting parameters: second delay information and second distance information.

In a possible design, the target failure event is an MCG failure event; the processor 1010 performs the sending of the first failure information, specifically for:

and sending the first failure information to the MN through the SN.

In a possible design, the processor 1010 is further configured to perform:

receiving, through the communication interface 1030, indication information from a network device, where the indication information is used to indicate whether to allow the terminal to report location information;

and carrying the position information of the terminal in the first failure information under the condition that the indication information indicates that the position information is allowed to be reported and the position information is acquired.

Optionally, the indication information is a system message or dedicated RRC signaling.

Optionally, the MCG failure event is a MCGRLF event.

In a possible design, the target failure event is an SCG failure event; the processor 1010 executes the sending of the second failure information, specifically for:

And sending second failure information to the MN.

Optionally, the multi-connection system further comprises a service satellite, and the first delay information and/or the second delay information comprise any one or more of the following: the time advance TA value from the terminal to the base station, the round trip time RTT value from the terminal to the base station, the TA value from the terminal to the satellite and the RTT value from the terminal to the satellite; wherein the base station comprises any one or more of the following: the MN, the SN and the neighbor cell base station, and the satellite is the service satellite and/or the neighbor cell satellite.

Optionally, the multi-connection system further comprises a service satellite, and the first distance information and/or the second distance information comprise any one or more of the following: the distance from the terminal to a base station, the distance from the terminal to a satellite, the distance from the terminal to a cell ground reference point of the satellite, the base station comprising any one or more of the following base stations: the MN, the SN and the neighbor cell base station, and the satellite is the service satellite and/or the neighbor cell satellite.

In a possible design, the processor 1010 is further configured to perform:

receiving the reporting assistance information from the network device via the communication interface 1030;

And determining the value of the reporting parameter in the first failure information and/or the second failure information according to the reporting auxiliary information.

Optionally, the reporting auxiliary information includes any one or more of the following: ephemeris information for satellites associated with one or more cells, terrestrial reference point information for one or more cells.

In a possible design, the processor 1010 is further configured to perform:

receiving reporting condition information from a network device via the communication interface 1030;

and determining the value of the reporting parameter in the first failure information and/or the second failure information according to the reporting condition information.

Optionally, the multi-connection system further comprises a service satellite, and the reporting condition indicated by the reporting condition information includes any one or more of the following: the distance from the terminal to the satellite is smaller than or equal to a first distance threshold, the distance from the terminal to a cell ground reference point is smaller than or equal to a second distance threshold, the TA value of the time advance from the terminal to the base station is smaller than or equal to a first TA threshold, the RTT value of the round trip time from the terminal to the base station is smaller than or equal to a first RTT threshold, the TA value of the terminal to the satellite is smaller than or equal to a second TA threshold, and the RTT value of the terminal to the satellite is smaller than or equal to a second RTT threshold; wherein the base station comprises any one or more of the following: the MN, the SN and the neighbor cell base station, and the satellite is the service satellite and/or the neighbor cell satellite.

Optionally, the multi-connection system further comprises a service satellite, and the reporting condition indicated by the reporting condition information includes any one or more of the following: the distance from the terminal to the satellite is larger than or equal to a first distance threshold, the distance from the terminal to a cell ground reference point is larger than or equal to a second distance threshold, the TA value of the time advance from the terminal to the base station is larger than or equal to a first TA threshold, the RTT value of the round trip time from the terminal to the base station is larger than or equal to a first RTT threshold, the TA value of the terminal to the satellite is larger than or equal to a second TA threshold, and the RTT value of the terminal to the satellite is larger than or equal to a second RTT threshold; wherein the base station comprises any one or more of the following: the MN, the SN and the neighbor cell base station, and the satellite is the service satellite and/or the neighbor cell satellite.

In a possible design, the processor 1010 is further configured to perform:

and determining a cell meeting the reporting condition indicated by the reporting condition information according to the reporting condition information, wherein the first failure information and/or the second failure information carry reporting parameters of the cell meeting the reporting condition, and the reporting parameters comprise time delay information and/or distance information.

Optionally, the terminal is a global navigation satellite system GNSS capable terminal.

Optionally, the first failure information and/or the second failure information further includes a reference signal reception parameter.

Fig. 11 is a schematic structural diagram of a network device according to an embodiment of the present application. As shown in fig. 11, the network device 1100 may include: a processor 1110, a memory 1120, a communication interface 1130, and one or more programs 1121, wherein the one or more programs 1121 are stored in the memory 1120 and configured for execution by the processor 1110. The network device can be applied to a multi-connection system, the multi-connection system comprises a terminal, an MN and an SN, the network device can be the MN or the SN, a cell included in the MN is a cell in an MCG, and a cell included in the SN is a cell in the SCG. Wherein the program includes instructions for performing some or all of the steps of the information transmission method described above, such as those performed by a network device, such as a MN or SN, the processor 1110 may invoke the one or more programs to perform some or all of the steps of the information transmission method described above. For example, processor 1110 may call the one or more programs to perform the steps of:

Receiving, by the communication interface 1130, first failure information and/or second failure information from a terminal, where the first failure information is sent by the terminal when a primary MCG failure event exists, and the second failure information is sent by the terminal when an SCG failure event exists; wherein the first failure information carries any one or more of the following reporting parameters: the location information, the first delay information and the first distance information of the terminal, and the second failure information carries any one or more of the following reporting parameters: second delay information, second distance information;

and carrying out data recovery processing according to the first failure information and/or the second failure information.

In a possible design, the network device is a MN; the receiving the first failure information from the terminal is specifically configured to:

and receiving first failure information sent by the SN, wherein the first failure information is sent to the SN by the terminal.

In a possible design, processor 1110 may also be configured to perform:

and sending indication information to the terminal through the communication interface 1130, where the indication information is used to indicate whether the terminal is allowed to report the location information.

Optionally, the MCG failure event is a MCGRLF event.

Optionally, the multi-connection system further comprises a service satellite, and the first distance information and/or the second distance information comprise any one or more of the following: the distance from the terminal to a base station, the distance from the terminal to a satellite, the distance from the terminal to a cell ground reference point, the base station comprising any one or more of the following base stations: the MN, the SN and the neighbor cell base station, and the satellite is the service satellite and/or the neighbor cell satellite.

In a possible design, processor 1110 may also be configured to perform:

reporting assistance information and/or reporting condition information is sent to the terminal via the communication interface 1130.

Optionally, the multi-connection system further comprises a satellite, and the reporting condition indicated by the reporting condition information comprises any one or more of the following: the distance from the terminal to the satellite is smaller than or equal to a first distance threshold, the distance from the terminal to a cell ground reference point is smaller than or equal to a second distance threshold, the TA value of the time advance from the terminal to the base station is smaller than or equal to a first TA threshold, the RTT value of the terminal to the base station is smaller than or equal to a first RTT threshold, the TA value of the terminal to the satellite is smaller than or equal to a second TA threshold, and the RTT value of the terminal to the satellite is smaller than or equal to a second RTT threshold; wherein the base station comprises any one or more of the following: the MN, the SN and the neighbor cell base station, and the satellite is the service satellite and/or the neighbor cell satellite.

Optionally, the first failure information and/or the second failure information carry reporting parameters of a cell meeting reporting conditions indicated by the reporting condition information, where the reporting parameters include delay information and/or distance information.

The foregoing description of the solution of the embodiment of the present application has been mainly presented from the perspective of interaction between network elements. It will be appreciated that the terminals and network devices, in order to implement the above-described functions, include corresponding hardware structures and/or software modules that perform the respective functions. The embodiment of the application may divide the functional units of the terminal and the network device according to the above method example, for example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated in one processing unit. The integrated units described above may be implemented either in hardware or in software program modules. 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.

Referring to fig. 12, fig. 12 shows another possible structural schematic diagram of the terminal involved in the above embodiment. Referring to fig. 12, the terminal 1200 may include: a processing unit 1201 and a communication unit 1202. Wherein these units may perform the respective functions of the terminal in the method examples described above. For example, the processing unit 1201 is configured to control and manage actions of the terminal. The communication unit 1202 may be used to support communication between a terminal and other devices, such as communication with a network device. Optionally, the terminal may further comprise a storage unit 1203 for storing program code and data of the network device.

The processing unit 1201 may be a processor or a controller or a software module, for example, a central processing unit (Central Processing Unit, CPU), a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an Application-specific integrated circuit (ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various exemplary logic blocks, modules, and circuits described in connection with this disclosure. The processor may also be a combination that performs the function of a computation, e.g., a combination comprising one or more microprocessors, a combination of a DSP and a microprocessor, and the like. The communication unit 1202 may be a transceiver, a communication interface, a transceiver circuit, a radio frequency chip, etc., and the storage unit 1203 may be a memory.

When the processing unit 1201 is a processor, the communication unit 1202 is a communication interface, and the storage unit 1203 is a memory, the terminal according to the embodiment of the present application may be the terminal shown in fig. 10.

Alternatively, the terminal may implement some or all of the steps performed by the terminal in the methods in the embodiments shown in fig. 3 to 9. It should be understood that the embodiments of the present application are apparatus embodiments corresponding to the embodiments of the method, and descriptions of the embodiments of the method are also applicable to the embodiments of the present application, which are not repeated herein.

Referring to fig. 13, fig. 13 shows another possible structural schematic diagram of the network device involved in the above embodiment. Referring to fig. 13, the network device 1300 may include: a communication unit 1301 and a processing unit 1302. Wherein these units may perform the respective functions of the network device in the method examples described above. For example, the processing unit 1302 is configured to control and manage actions of the network device. Communication unit 1301 may be used to support communication of a network device with other devices, such as communication with a terminal. Optionally, the network device may further comprise a storage unit 1303 for storing program codes and data of the network device.

The processing unit 1302 may be a processor or a controller or a software module, the communication unit 1301 may be a transceiver, a communication interface, a transceiver circuit, a radio frequency chip, etc., and the storage unit 1303 may be a memory, which is not described herein.

When the processing unit 1302 is a processor, the communication unit 1301 is a communication interface, and the storage unit 1303 is a memory, the network device according to the embodiment of the present application may be a network device shown in fig. 11.

Alternatively, the network device may implement, through the unit, some or all of the steps performed by the network device, such as MN or SN, in the method in the embodiments shown in fig. 3 to 9. It should be understood that the embodiments of the present application are apparatus embodiments corresponding to the embodiments of the method, and descriptions of the embodiments of the method are also applicable to the embodiments of the present application, which are not repeated herein.

The application also provides a communication system which comprises the terminal and/or the network equipment. Optionally, the system may further include other devices that interact with the network element in the solution provided in the embodiments of the present application. The network device and/or the terminal may perform some or all of the steps in the methods in the embodiments shown in fig. 3 to 9, and specific reference may be made to the related descriptions of the foregoing embodiments, which are not repeated herein.

Embodiments of the present application also provide a computer readable storage medium, where the computer readable storage medium stores a computer program for electronic data exchange, where the computer program when executed by a processor implements some or all of the steps described in the terminal or network device in the above method embodiments.

Embodiments of the present application also provide a computer program product, wherein the computer program product comprises a non-transitory computer readable storage medium storing a computer program, the computer program being operable to cause a computer to perform some or all of the steps described by a terminal or network device in the above-described method embodiments. For example, the computer program product may be a software installation package.

The steps of a method or algorithm described in connection with the disclosure herein may be embodied in hardware, or may be embodied in software instructions executed by a processor. The software instructions may be comprised of corresponding software modules that may be stored in random access Memory (Random Access Memory, RAM), flash Memory, read Only Memory (ROM), erasable programmable Read Only Memory (Erasable Programmable ROM), electrically Erasable Programmable Read Only Memory (EEPROM), registers, hard disk, a removable disk, a compact disc Read Only Memory (CD-ROM), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may reside in a communication device such as a terminal, network device. The processor and the storage medium may reside as discrete components in a communication device.

It will be appreciated that the first, second, and various numerical numbers referred to herein are merely descriptive convenience and are not intended to limit the scope or order of embodiments of the present application. The term "and/or" is used herein to describe an association of associated objects, meaning that there may be three relationships, e.g., a and/or B, which may represent three cases: a alone, B alone, and both A and B together. The character "/" herein may indicate that the context associated object is an "or" relationship.

Those of skill in the art will appreciate that in one or more of the above examples, the functions described in the embodiments of the present application may be implemented, in whole or in part, in software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (Digital Subscriber Line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy Disk, a hard Disk, a magnetic tape), an optical medium (e.g., a digital video disc (Digital Video Disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

Claims

The information transmission method is characterized by being applied to a multi-connection system, wherein the multi-connection system comprises a terminal, a main node MN and an auxiliary node SN, a cell included in the MN is a cell in a main cell group MCG, and a cell included in the SN is a cell in an auxiliary cell group SCG, and the method comprises the following steps:

the terminal determines that a target failure event exists, wherein the target failure event comprises an MCG failure event and/or an SCG failure event;

and under the condition that the target failure event is the MCG failure event, the terminal sends first failure information, wherein the first failure information carries any one or more of the following reporting parameters: the location information of the terminal, the first delay information, the first distance information, and/or,

and under the condition that the target failure event is the SCG failure event, the terminal sends second failure information, wherein the second failure information carries any one or more of the following reporting parameters: second delay information and second distance information.
The method of claim 1, wherein the target failure event is an MCG failure event; the terminal sends first failure information, including:

and the terminal sends the first failure information to the MN through the SN.
The method according to claim 2, wherein the method further comprises:

the terminal receives indication information from network equipment, wherein the indication information is used for indicating whether the terminal is allowed to report position information;

and under the condition that the indication information indicates that the terminal is allowed to report the position information and the terminal acquires the position information, the terminal carries the position information of the terminal in the first failure information.
A method according to claim 3, characterized in that the indication information is a system message or dedicated radio resource control, RRC, signaling.
The method of claim 1, wherein the MCG failure event is an MCG radio link failure, RLF, event.
The method of claim 1, wherein the target failure event is an SCG failure event; the terminal sending second failure information, including:

the terminal sends second failure information to the MN.
The method of any of claims 1-6, wherein the multi-connection system further comprises a service satellite, and wherein the first latency information and/or the second latency information comprises any one or more of: the time advance TA value from the terminal to the base station, the round trip time RTT value from the terminal to the base station, the TA value from the terminal to the satellite and the RTT value from the terminal to the satellite; wherein the base station comprises any one or more of the following: the MN, the SN and the neighbor cell base station, and the satellite is the service satellite and/or the neighbor cell satellite.
The method of any of claims 1-6, wherein the multi-connection system further comprises a service satellite, and wherein the first distance information and/or the second distance information comprises any one or more of: the distance from the terminal to a base station, the distance from the terminal to a satellite, the distance from the terminal to a cell ground reference point of the satellite, the base station comprising any one or more of the following base stations: the MN, the SN and the neighbor cell base station, and the satellite is the service satellite and/or the neighbor cell satellite.
The method according to any one of claims 1-6, further comprising:

the terminal receives the reporting auxiliary information from the network equipment;

and the terminal determines the value of the reporting parameter in the first failure information and/or the second failure information according to the reporting auxiliary information.
The method of claim 9, wherein reporting the auxiliary information comprises any one or more of: ephemeris information for satellites associated with one or more cells, terrestrial reference point information for one or more cells.
The method according to any one of claims 1-6, further comprising:

The terminal receives reporting condition information from network equipment;

and the terminal determines the value of the reporting parameter in the first failure information and/or the second failure information according to the reporting condition information.
The method of claim 11, wherein the multi-connection system further comprises a service satellite, and wherein the reporting condition indicated by the reporting condition information comprises any one or more of: the distance from the terminal to the satellite is smaller than or equal to a first distance threshold, the distance from the terminal to a cell ground reference point is smaller than or equal to a second distance threshold, the TA value of the time advance from the terminal to the base station is smaller than or equal to a first TA threshold, the RTT value of the terminal to the base station is smaller than or equal to a first RTT threshold, the TA value of the terminal to the satellite is smaller than or equal to a second TA threshold, and the RTT value of the terminal to the satellite is smaller than or equal to a second RTT threshold; wherein the base station comprises any one or more of the following: the MN, the SN and the neighbor cell base station, and the satellite is the service satellite and/or the neighbor cell satellite.
The method of claim 11, wherein the multi-connection system further comprises a service satellite, and wherein the reporting condition indicated by the reporting condition information comprises any one or more of: the distance from the terminal to the satellite is larger than or equal to a first distance threshold, the distance from the terminal to a cell ground reference point is larger than or equal to a second distance threshold, the TA value of the time advance from the terminal to the base station is larger than or equal to a first TA threshold, the RTT value of the round trip time from the terminal to the base station is larger than or equal to a first RTT threshold, the TA value of the terminal to the satellite is larger than or equal to a second TA threshold, and the RTT value of the terminal to the satellite is larger than or equal to a second RTT threshold; wherein the base station comprises any one or more of the following: the MN, the SN and the neighbor cell base station, and the satellite is the service satellite and/or the neighbor cell satellite.
The method of claim 11, wherein the method further comprises:

and the terminal determines the cells meeting the reporting conditions indicated by the reporting condition information according to the reporting condition information, wherein the first failure information and/or the second failure information carry reporting parameters of the cells meeting the reporting conditions, and the reporting parameters comprise time delay information and/or distance information.
The method of claim 1, wherein the terminal is a global navigation satellite system, GNSS, enabled terminal.
The method according to claim 1, wherein the first failure information and/or the second failure information further comprises a reference signal reception parameter.
The information transmission method is characterized by being applied to a multi-connection system, wherein the multi-connection system comprises a terminal, a main node MN and an auxiliary node SN, a cell included in the MN is a cell in a main cell group MCG, and a cell included in the SN is a cell in an auxiliary cell group SCG, and the method comprises the following steps:

the network equipment receives first failure information and/or second failure information from a terminal, wherein the first failure information is sent by the terminal when a main MCG failure event exists, and the second failure information is sent by the terminal when an SCG failure event exists; wherein the network device is the MN or the SN, and the first failure information carries any one or more of the following reporting parameters: the location information, the first delay information and the first distance information of the terminal, and the second failure information carries any one or more of the following reporting parameters: second delay information, second distance information;

And the network equipment performs data recovery processing according to the first failure information and/or the second failure information.
The method of claim 17, wherein the network device is the MN; the network device receiving first failure information from a terminal, comprising:

the MN receives first failure information sent by the SN, wherein the first failure information is sent to the SN by the terminal.
The method of claim 18, wherein the method further comprises:

the network equipment sends indication information to the terminal, wherein the indication information is used for indicating whether the terminal is allowed to report the position information.
The method of claim 19, wherein the indication information is a system message or dedicated radio resource control, RRC, signaling.
The method of claim 17, wherein the MCG failure event is an MCG radio link failure, RLF, event.
The method of any of claims 17-21, wherein the multi-connection system further comprises a service satellite, and wherein the first delay information and/or the second delay information comprises any one or more of: the time advance TA value from the terminal to the base station, the round trip time RTT value from the terminal to the base station, the TA value from the terminal to the satellite and the RTT value from the terminal to the satellite; wherein the base station comprises any one or more of the following: the MN, the SN and the neighbor cell base station, and the satellite is the service satellite and/or the neighbor cell satellite.
The method of any of claims 17-21, wherein the multi-connection system further comprises a service satellite, and wherein the first distance information and/or the second distance information comprises any one or more of: the distance from the terminal to a base station, the distance from the terminal to a satellite, the distance from the terminal to a cell ground reference point, the base station comprising any one or more of the following base stations: the MN, the SN and the neighbor cell base station, and the satellite is the service satellite and/or the neighbor cell satellite.
The method according to any one of claims 17-21, further comprising:

and the network equipment sends the reporting auxiliary information and/or reporting condition information to the terminal.
The method of claim 24, wherein reporting the auxiliary information comprises any one or more of: ephemeris information for satellites associated with one or more cells, terrestrial reference point information for one or more cells.
The method of claim 24, wherein the multi-connection system further comprises a satellite, and wherein the reporting condition indicated by the reporting condition information comprises any one or more of: the distance from the terminal to the satellite is smaller than or equal to a first distance threshold, the distance from the terminal to a cell ground reference point is smaller than or equal to a second distance threshold, the TA value of the time advance from the terminal to the base station is smaller than or equal to a first TA threshold, the RTT value of the terminal to the base station is smaller than or equal to a first RTT threshold, the TA value of the terminal to the satellite is smaller than or equal to a second TA threshold, and the RTT value of the terminal to the satellite is smaller than or equal to a second RTT threshold; wherein the base station comprises any one or more of the following: the MN, the SN and the neighbor cell base station, and the satellite is the service satellite and/or the neighbor cell satellite.
The method of claim 24, wherein the multi-connection system further comprises a service satellite, and wherein the reporting condition indicated by the reporting condition information comprises any one or more of: the distance from the terminal to the satellite is larger than or equal to a first distance threshold, the distance from the terminal to a cell ground reference point is larger than or equal to a second distance threshold, the TA value of the time advance from the terminal to the base station is larger than or equal to a first TA threshold, the RTT value of the round trip time from the terminal to the base station is larger than or equal to a first RTT threshold, the TA value of the terminal to the satellite is larger than or equal to a second TA threshold, and the RTT value of the terminal to the satellite is larger than or equal to a second RTT threshold; wherein the base station comprises any one or more of the following: the MN, the SN and the neighbor cell base station, and the satellite is the service satellite and/or the neighbor cell satellite.
The method according to claim 24, wherein the first failure information and/or the second failure information carries reporting parameters of cells satisfying reporting conditions indicated by the reporting condition information, the reporting parameters including delay information and/or distance information.
The method of claim 17, wherein the first failure information and/or the second failure information further comprises a reference signal reception parameter.
The terminal is characterized by being applied to a multi-connection system, wherein the multi-connection system comprises the terminal, a main node MN and an auxiliary node SN, a cell included in the MN is a cell in a main cell group MCG, and a cell included in the SN is a cell in an auxiliary cell group SCG; the terminal comprises: a processing unit and a communication unit;

the processing unit is used for determining that a target failure event exists, wherein the target failure event comprises an MCG failure event and/or an SCG failure event;

the communication unit is configured to send first failure information when the target failure event is the MCG failure event, where the first failure information carries any one or more of the following reporting parameters: the location information of the terminal, the first delay information, the first distance information, and/or,

the communication unit is configured to send second failure information when the target failure event is the SCG failure event, where the second failure information carries any one or more of the following reporting parameters: second delay information and second distance information.
The network equipment is characterized by being applied to a multi-connection system, wherein the multi-connection system comprises a terminal, a main node MN and an auxiliary node SN, the network equipment is the MN or the SN, a cell included by the MN is a cell in a main cell group MCG, and a cell included by the SN is a cell in an auxiliary cell group SCG; the network equipment comprises a communication unit and a processing unit;

the communication unit is configured to receive first failure information and/or second failure information from a terminal, where the first failure information is sent by the terminal when a primary MCG failure event exists, and the second failure information is sent by the terminal when an SCG failure event exists; wherein the first failure information carries any one or more of the following reporting parameters: the location information, the first delay information and the first distance information of the terminal, and the second failure information carries any one or more of the following reporting parameters: second delay information, second distance information;

and the processing unit is used for carrying out data recovery processing according to the first failure information and/or the second failure information.
A terminal comprising a processor, a memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor to implement the method of any of claims 1-16.
A network device comprising a processor, a memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor to implement the method of any of claims 17-29.
A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program which, when executed by a processor, implements the method according to any of claims 1-16.
A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program which, when executed by a processor, implements the method according to any of claims 17-29.