Report recording method and apparatus, and report receiving method and apparatus

Abstract

The present application provides a report recording method and apparatus, and a report receiving method and apparatus. The report recording apparatus comprises: a processor configured to detect a master cell group (MCG) failure and a secondary cell group (SCG) failure, and record information related to the MCG failure and the SCG failure, wherein the related information includes indication information used for determining the sequence of the occurrence of the MCG failure and the SCG failure.

Description

Report recording method, report receiving method and device Technical Field

[0001] The embodiments of the present application relate to the field of communication technologies. Background Art

[0002] In dual-connectivity (DC) or multi-connectivity (MC) communication, the terminal device can simultaneously have communication connections with at least two access network devices, for example, with a master base station and one or more secondary base stations, wherein the master base station manages the master cell group (MCG) and the secondary base station manages the secondary cell group (SCG). The terminal device can obtain the communication service of the master base station through the cells in the MCG, and can obtain the communication service of the secondary base station through the cells in the SCG.

[0003] In the above-mentioned dual-connection or multi-connection communication scenario, the terminal device will detect whether a radio link failure (RLF) occurs in the link between the terminal device and the MCG and the link between the terminal device and the SCG. When the terminal device detects the MCG connection failure and the SCG connection failure, the terminal device records (stores) the information related to the MCG connection failure and the SCG connection failure, generates a relevant report and sends it to the receiving network device.

[0004] It should be noted that the above introduction to the technical background is merely intended to provide a clear and complete description of the technical solutions of this application and facilitate understanding by those skilled in the art. Simply because these solutions are described in the background technology section of this application, it should not be assumed that the above technical solutions are well known to those skilled in the art.

[0005] Summary of the Invention

[0006] The inventors found that it is impossible to distinguish the order in which MCG connection failure and SCG connection failure occur based solely on information indicating MCG connection failure and information indicating SCG connection failure, which may make it impossible for network equipment to optimally adjust MCG-related mobility parameters.

[0007] In response to at least one of the above problems or other similar problems, embodiments of the present application provide a report recording method, a report receiving method, and a device.

[0008] According to one aspect of an embodiment of the present application, a report recording device is provided, configured in a terminal device (UE), wherein the device includes:

[0009] a processor that detects a master cell group (MCG) failure and a secondary cell group (SCG) failure and records information related to the MCG failure and the SCG failure;

[0010] The related information includes indication information for determining the order in which the primary cell group failure and the secondary cell group failure occur.

[0011] According to another aspect of an embodiment of the present application, a report receiving apparatus is provided, applied to a first network device, wherein the apparatus includes:

[0012] a receiver, configured to receive a first report sent by a terminal device, where the first report is used to record information related to a primary cell group failure and a secondary cell group failure;

[0013] The related information includes indication information for determining the order in which the primary cell group failure and the secondary cell group failure occur.

[0014] According to another aspect of an embodiment of the present application, a report receiving apparatus is provided, which is applied to a core network device, wherein the apparatus includes:

[0015] a receiver configured to receive a first report sent by a first network device, where the first report is used to record information related to a primary cell group failure and a secondary cell group failure;

[0016] The related information includes indication information for determining the order in which the primary cell group failure and the secondary cell group failure occur.

[0017] One of the beneficial effects of the embodiments of the present application is that it enables the terminal device to provide new indication information for determining the order in which the primary cell group failure and the secondary cell group failure occur, so that the network device can determine the corresponding failure scenario, thereby optimizing the corresponding MCG / SCG mobility parameters and improving the robustness of the MCG and / or SCG mobility.

[0018] With reference to the following description and accompanying drawings, specific embodiments of the present application are disclosed in detail, indicating the manner in which the principles of the present application can be employed. It should be understood that the embodiments of the present application are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present application include many variations, modifications and equivalents.

[0019] Features described and / or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0020] It should be emphasized that the term "include / comprising" when used herein refers to the presence of features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps or components. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The elements and features described in one figure or one embodiment of the present application can be combined with the elements and features shown in one or more other figures or embodiments. In addition, in the accompanying drawings, similar reference numerals represent corresponding parts in several figures and can be used to indicate corresponding parts used in more than one embodiment.

[0022] FIG1 is a schematic diagram of a primary cell group and a secondary cell group;

[0023] Figures 2 and 3 are schematic diagrams of connection failure between MCG and SCG in an embodiment of the present application;

[0024] FIG4 is a schematic diagram of a report recording method according to an embodiment of the present application;

[0025] FIG5 is a schematic diagram of a report receiving method according to an embodiment of the present application;

[0026] FIG6 is a schematic diagram of a report receiving method according to an embodiment of the present application;

[0027] FIG7 is a schematic diagram of a report receiving method according to an embodiment of the present application;

[0028] FIG8 is a schematic diagram of a report recording device according to an embodiment of the present application;

[0029] FIG9 is a schematic diagram of a communication system according to an embodiment of the present application;

[0030] FIG10 is a schematic diagram of a terminal device according to an embodiment of the present application;

[0031] FIG11 is a schematic diagram of a network device according to an embodiment of the present application;

[0032] Figure 12 is a schematic diagram of a connection failure between MCG and SCG in an embodiment of the present application. DETAILED DESCRIPTION

[0033] The above and other features of the present application will become apparent through the following description with reference to the accompanying drawings. In the description and the accompanying drawings, specific embodiments of the present application are disclosed in detail, which illustrate some embodiments in which the principles of the present application can be adopted. It should be understood that the present application is not limited to the described embodiments. On the contrary, the present application includes all modifications, variations and equivalents that fall within the scope of the appended claims.

[0034] In the embodiments of the present application, the terms "first", "second", etc. are used to distinguish different elements from the name, but do not indicate the spatial arrangement or temporal order of these elements, and these elements should not be limited by these terms. The term "and / or" includes any one and all combinations of one or more of the associated listed terms. The terms "comprising", "including", "having", etc. refer to the presence of the stated features, elements, components or components, but do not exclude the presence or addition of one or more other features, elements, components or components.

[0035] In the embodiments of this application, the singular forms "a," "the," etc. include plural forms and should be broadly understood to mean "a" or "a type" rather than being limited to "one." Furthermore, the term "said" should be understood to include both singular and plural forms, unless the context clearly indicates otherwise. Furthermore, the term "according to" should be understood to mean "at least in part based on...", and the term "based on" should be understood to mean "at least in part based on...", unless the context clearly indicates otherwise.

[0036] In the embodiments of the present application, a scenario involving network devices and / or terminal devices is taken as an example.

[0037] In the above scenario, the network device may include at least one of a core network device, a third-party application device, an operation administration and maintenance (OAM), and an access network device.

[0038] The core network device may refer to a device in the core network (CN) that provides service support for the terminal device. As some examples, the core network device may be at least one of the following: a mobility and management entity (MME), an access and mobility management function (AMF) entity, a session management function (SMF) entity, a user plane function (UPF) entity, a location management function (LMF) entity, and the like, which are not listed here one by one. Among them, the AMF entity may be responsible for the access management and mobility management of the terminal, the SMF entity may be responsible for session management, such as the establishment of a user session, and the UPF entity may be a functional entity of the user plane, mainly responsible for connecting to the external network. The LMF entity may manage the overall coordination and scheduling of resources required for the location of the terminal device registered with the core network device or accessing the core network device. It should be noted that in the embodiment of the present application, the entity may also be referred to as a network element or a functional entity, such as the AMF entity may also be referred to as an AMF network element or an AMF functional entity, and so on.

[0039] The third-party application device can be an OTT service (over the top server) or other third-party device.

[0040] OAM is a network device that performs operations, management, and maintenance on the network according to the actual needs of the operator's network operations.

[0041] The access network device is an access device that the terminal device uses to access the communication system wirelessly. The access network device can be a base station (BS), a node, an evolved NodeB (eNodeB), a transmission reception point (TRP), a base station (next generation NodeB, gNB) in the fifth generation (5G) mobile communication system, a base station in the sixth generation (6G) mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system. The access network device can also be a module or unit that completes part of the functions of the base station. For example, it can be at least one of the following modules or units: a centralized unit (CU), a distributed unit (DU), a centralized unit control plane (CU control plane, CU-CP), a centralized unit user plane (CU user plane, CU-CP), an integrated access backhaul (IAB) or other modules or units. The embodiments of the present application do not limit the specific technology and / or specific device form adopted by the access network device. The access network equipment can be deployed on land, including indoors / outdoors, and can be handheld or vehicle-mounted; it can also be deployed on the water, on an airplane, on a balloon or on a satellite; the access network equipment can be deployed in a fixed location or on a mobile carrier, and the embodiments of the present application do not limit this.

[0042] In the above scenarios, a terminal device can be a device with wireless transceiver capabilities that can send signals to and / or receive signals from an access network device. A terminal device can also be referred to as a terminal, mobile station, or mobile terminal. A terminal device can be a mobile phone, tablet, or other device with wireless intelligent transceiver capabilities. Terminal devices can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), the Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, and various smart scenarios.

[0043] In the above scenarios, access network devices and terminal devices, and terminal devices and terminal devices can communicate via licensed spectrum, unlicensed spectrum, or both. The embodiments of this application do not limit the spectrum resources used for wireless communications.

[0044] For ease of description, the following description is made by taking a base station as an example of a network device. In the following description, "if ...", "under ...", "if ..." and "when ..." can be used interchangeably without causing confusion.

[0045] In an embodiment of the present application, a terminal device may be configured with a primary network device and a secondary network device. As shown in FIG1 , a group of service cells associated with the primary network device may be referred to as an MCG, and a group of service cells associated with the secondary network device may be referred to as a secondary cell group (SCG). The primary cell group may include a primary cell (PCell), or a primary cell and at least one secondary cell (SCell), and the secondary cell group may include a primary SCG cell (PSCell), or a primary and secondary cell and at least one secondary cell. The primary cell and the primary and secondary cells may also be referred to as special cells (spCells). The primary cell refers to a cell deployed at a primary frequency point, and the terminal device initiates an initial connection establishment process or a connection reestablishment process in the cell, or indicates that it is a primary cell during a handover process. The primary and secondary cells refer to the cell in which the terminal device initiates a random access process in a secondary access network device, or the cell in which the terminal device skips the random access process and initiates data transmission during a change of the secondary access network device, or the cell in which the secondary access network device initiates random access during a synchronous reconfiguration process.

[0046] In the embodiments of the present application, the primary base station may also be referred to as a master node (MN) or a primary network device (or a primary cell). The secondary base station may also be referred to as a secondary node (SN) or a secondary network device (or a primary and secondary cell). A control plane connection may be established between the primary base station and the core network, and the primary base station and the secondary base station may each establish a data plane connection with the core network.

[0047] The embodiments of the present application are mainly described for the scenario of multi-link MC. For ease of understanding, the following takes the multi-link MC including two connections as an example, that is, the DC scenario. It should be noted that the multi-link in the embodiments of the present application can also be called multi-connection, and the dual link can also be called dual connection.

[0048] In the embodiment of the present application, "the terminal device detects that the MCG connection fails" can also be referred to as "the MCG connection fails" or "the MCG (link) fails", or "the terminal device detects that the SCG connection fails" can also be referred to as "the SCG connection fails" or "the SCG (link) fails", but the embodiment of the present application is not limited thereto. As an example, the MCG connection failure in the embodiment of the present application may refer to the link connection failure between the terminal device and the primary cell in the MCG or the special cell in the MCG, or the MCG connection failure may refer to the link connection failure between the terminal device and all cells in the MCG.

[0049] Similarly, the connection failure of the SCG in the embodiment of the present application may refer to the connection failure of the link between the terminal device and the primary or secondary cell in the SCG or the special cell in the SCG, or the connection failure between the terminal device and the SCG may refer to the connection failure of the links between all cells in the SCG.

[0050] When the terminal device is in the DC or MC scenario, if it detects a connection failure in the SCG, the terminal device will still remain in the connected state. If the terminal device detects a connection failure in the MCG, the terminal device will trigger the re-establishment process. The specific process is shown in Figure 2. In this scenario, the SCG failure occurs first and the MCG device occurs later.

[0051] If the terminal device detects that the MCG connection has failed, and the SCG is available or the SCG connection has not been detected, the terminal device may not trigger the re-establishment process, but may perform MCG recovery. The MCG recovery process may also be referred to as the MCG recovery mechanism, and MCG recovery may also be referred to as fast MCG recovery (fast MCG recovery). As an example, the MCG recovery mechanism refers to a connection failure between the terminal device and the MCG, and the terminal device may report the MCG connection failure information through the SCG and attempt to restore the connection between the terminal device and the MCG. If the terminal device detects an SCG connection failure before the fast MCG recovery is successful, the terminal device executes the re-establishment process. The specific process is shown in Figure 3 or Figure 12. In this scenario, the MCG failure occurs first, and the SCG failure occurs later. Among them, timer T316 is used to indicate the time information of the fast MCG recovery. When the terminal device generates or sends a fast MCG recovery message, such as an MCGfailureinfo message, the terminal device starts T316. When the terminal device successfully receives the fast MCG recovery response message or the terminal device executes the re-establishment process, the terminal device stops T316. The fast MCG recovery response message can be a response message sent by the MCG or MN, such as a release message, a reconfiguration message, or any message of a handover message. In Figure 3, the terminal device detects an MCG failure, generates and sends a fast MCG recovery message, such as an MCGfailureinfo message, and starts T316, and then the terminal device detects that an SCG failure occurs. In Figure 12, the terminal device detects an MCG failure, generates a fast MCG recovery message, such as an MCGfailureinfo message, but the terminal device detects an SCG failure. Therefore, in Figure 12, the terminal device does not send an MCG recovery message, so the terminal device does not start T316, or in other words, the SCG failure is detected after the fast MCG recovery process is started but when timer T316 is not running.

[0052] However, based solely on the MCG connection failure-related information and SCG connection failure-related information recorded by the terminal device, it is impossible to distinguish the scenarios of Figure 2, Figure 3 or Figure 12, that is, it is impossible to distinguish the order in which the MCG connection failure and the SCG connection failure occur, which may make it impossible for the network device to optimally adjust the MCG-related mobility parameters.

[0053] In response to the above problems, the embodiments of the present application are described below with reference to the accompanying drawings and specific implementation methods.

[0054] Embodiments of the first aspect

[0055] An embodiment of the present application provides a report recording method, which is described from the perspective of a terminal device.

[0056] FIG4 is a schematic diagram of a report recording method according to an embodiment of the present application. As shown in FIG2 , the method includes:

[0057] 401. The terminal device detects a master cell group (MCG) failure and a secondary cell group (SCG) failure, and records information related to the master cell group failure and the secondary cell group failure; wherein the related information includes indication information for determining the order in which the master cell group failure and the secondary cell group failure occur.

[0058] It is worth noting that FIG4 above only schematically illustrates an embodiment of the present application, and the present application is not limited thereto. For example, other operations may be added or some operations may be reduced. Those skilled in the art may make appropriate modifications based on the above content, and are not limited to the description of FIG4 above.

[0059] In some embodiments, the causes of MCG failure may include at least one of the following: handover failure (HOF), radio link failure (RLF), reconfiguration synchronization failure, new radio (NR) to other system switching failure, integrity check failure, radio resource control (RRC) connection reconfiguration failure, timer expiration, etc., which are not limited in the embodiments of the present application. MCG failure scenarios include at least one of the following: MCG radio link failure (RLF), RRC reconfiguration failure caused by the UE's inability to apply the RRC reconfiguration message configured by the MCG, complete protection failure, the UE receiving the handover command and being unable to complete the configuration, or the UE failing to switch from NR to LTE, etc., which are not limited in the embodiments of the present application.

[0060] In some embodiments, the causes of SCG failure may include at least one of the following: SCG radio link failure (RLF), SN change failure, SCG configuration failure, SCG RRC integrity check failure on SRB3, the radio link control layer reaches the maximum number of retransmissions, listen-before-speak failure, beam recovery failure, beam failure or other failure reasons, etc., which are not limited in the embodiments of the present application. The SCG failure scenario includes at least one of the following: SCG radio link failure (RLF), detection of beam failure of the primary and secondary cells, RRC reconfiguration failure caused by the UE's inability to apply the RRC reconfiguration message configured by the SCG, protection failure on SRB3, SCG change failure or other failures, etc., which are not limited in the embodiments of the present application.

[0061] In some embodiments, for the scenario in Figure 2, if the SCG failure occurs first and the MCG failure occurs later, the terminal device will trigger the re-establishment process, will not start the fast MCG recovery process, and timer T316 will not run; for the scenario in Figure 3, if the MCG failure occurs first, the terminal device will start the fast MCG recovery process, for example, when the terminal device sends a fast MCG recovery message and starts T316, and then detects that the SCG failure has occurred; for the scenario in Figure 12, if the MCG failure occurs first, the terminal device will start the fast MCG recovery process, but before sending the fast MCG recovery message, it detects that the SCG failure has occurred, that is, T316 is not started. That is, SCG failure will occur in the following scenarios: timer T316 runs (the fast MCG recovery process has been started, that is, the MCG failure has occurred) or the SCG failure is detected before the fast MCG recovery process is started (timer T316 is not started, that is, the MCG failure has not occurred, or the MCG failure has occurred but before the fast MCG recovery message is sent).

[0062] In some embodiments, when a primary cell group (MCG) failure and a secondary cell group (SCG) failure are detected, the terminal device records information related to the primary cell group failure and the secondary cell group failure, and generates a first report based on the related information. The first report may be a radio link failure report (RLF report), but the embodiments of the present application are not limited to this name. The related information may include at least one of the information of the primary and secondary cells and the cause of the SCG failure. If there is a global cell identifier (GCI) of the primary and secondary cells, the information of the primary and secondary cells is set to the global cell identifier of the primary and secondary cells. Otherwise, the information of the primary and secondary cells is set to the physical cell identifier (PCI) and carrier frequency information of the primary and secondary cells.

[0063] In some embodiments, in order to distinguish the order of occurrence of the detected MCG failure and SCG failure, the related information may also include indication information for determining the order of occurrence of the primary cell group failure and the secondary cell group failure, which is described in detail below. The indication information includes at least one of the following implementations.

[0064] As a possible implementation manner, the indication information includes the first failure time information or the second failure time information, that is, the indication information is one of the first failure time information and the second failure time information.

[0065] In this implementation, the first failure time information is used to indicate the time information from the occurrence of the secondary cell group failure to the occurrence of the primary cell group failure. For example, the first failure time information can be represented by the information element "elapsedTimeSCGFailure", but the embodiments of the present application are not limited to this. As an example, when the SCG failure is detected before the rapid MCG recovery process is started, the indication information includes the first failure time information. That is, when the SCG failure is detected before the MCG occurs, the indication information includes the first failure time information, thereby, the network device can determine that the SCG failure occurs first and the MCG failure occurs later. In other words, if the SCG failure is detected before the rapid MCG recovery process is started, the relevant information includes the information element "elapsedTimeSCGFailure" and its value is set to the time from the occurrence of the secondary cell group failure to the occurrence of the primary cell group failure.

[0066] In this implementation, the second failure time information is used to indicate the time information from the occurrence of the primary cell group failure to the occurrence of the secondary cell group failure, or to indicate the time information from the primary cell group failure message (such as the MCGfailureinfo message) to the occurrence of the secondary cell group failure. For example, the second failure time information can be represented by the information element "elapsedTimeMCGFailure", but the embodiments of the present application are not limited to this. As an example, when the SCG failure is detected when the timer T316 is running or after the fast MCG recovery process is started but the timer T316 is not running, the indication information includes the second failure time information. That is, after the MCG failure occurs (and in the fast MCG recovery process, including two scenarios in which T316 is running or not running), when the SCG failure is detected, the indication information includes the second failure time information, thereby, the network device can determine that the MCG failure occurs first and the SCG failure occurs later. In other words, if SCG failure is detected while timer T316 is running or after the fast MCG recovery process is started but timer T316 is not running, the relevant information includes the information element "elapsedTimeMCGFailure", whose value is set to the time elapsed from the occurrence of the primary cell group failure to the occurrence of the secondary cell group failure, or, whose value is set to the time elapsed from the sending of the primary cell group failure message (such as the MCGfailureinfo message) to the occurrence of the secondary cell group failure.

[0067] That is to say, in this implementation method, if the relevant information includes first failure time information, the time information from the occurrence of the secondary cell group failure to the occurrence of the main cell group failure can be determined based on the first failure time information, and then indirectly determine that the SCG failure occurs first and the MCG failure occurs later. If the relevant information includes second failure time information, the time information from the occurrence of the secondary cell group failure to the occurrence of the main cell group failure can be determined based on the second failure time information, or the time information from the sending of the main cell group failure message to the occurrence of the secondary cell group failure can be determined, and then indirectly (implicitly) determine that the MCG failure occurs first and the SCG failure occurs later.

[0068] As another possible implementation, the indication information includes type information for indicating the first failure. The type information can be set to primary cell group failure or secondary cell group failure. When the type information is set to primary cell group failure, it indicates that the first failure is the primary cell group, that is, the primary cell group failure occurs first, and the secondary cell group failure occurs later. When the type information is set to secondary cell group failure, it indicates that the first failure is the secondary cell group, that is, the secondary cell group failure occurs first, and the primary cell group failure occurs later. That is, the order of occurrence of MCG failure and SCG failure can be explicitly indicated according to the value of the type information of the first failure.

[0069] In this implementation, the type information may be represented by the information element "firstFailuretype," but the embodiments of the present application are not limited thereto. As an example, when an SCG failure is detected before the fast MCG recovery process is started, the type information is set to secondary cell group failure. That is, when an SCG failure is detected before an MCG failure occurs, the type information is set to secondary cell group failure. Thus, the network device can determine that the SCG failure occurs first and the MCG failure occurs later. In other words, if an SCG failure is detected before the fast MCG recovery process is started, the relevant information includes the information element "firstFailuretype" and its value is set to secondary cell group failure. As an example, when an SCG failure is detected while timer T316 is running or after the fast MCG recovery process is started but timer T316 is not running, the type information is set to primary cell group failure. That is, when an SCG failure is detected after an MCG failure occurs (including both scenarios of T316 running and not running in the fast MCG recovery process), the type information is set to primary cell group failure. Thus, the network device can determine that the MCG failure occurs first and the SCG failure occurs later. In other words, if SCG failure is detected when timer T316 is running, the relevant information includes the information element "firstFailuretype" and its value is set to primary cell group failure.

[0070] As another possible implementation, the indication information includes information for indicating that the type of the first failure is a secondary cell group failure. In this implementation, when the SCG failure is detected before the fast MCG recovery process is started, the relevant information includes the indication information. That is, when the MCG has not yet occurred, when the SCG failure is detected, the relevant information includes the indication information, thereby determining that the SCG failure occurs first and the MCG failure occurs later. When the SCG failure is detected when the timer T316 is running, the relevant information does not include the indication information. That is, after the MCG failure occurs (and in the fast MCG recovery process), when the SCG failure is detected, the relevant information does not include the indication information, thereby determining that the MCG failure occurs first and the SCG failure occurs later. That is, the order of occurrence of the MCG failure and the SCG failure can be explicitly indicated based on whether the information indicating that the type of the first failure is a secondary cell group failure is included.

[0071] As another possible implementation, the indication information includes information for indicating that the type of the first failure is a primary cell group failure. In this implementation, when an SCG failure is detected before the fast MCG recovery process is started, the related information does not include the indication information. That is, when an SCG failure is detected before MCG occurs, the related information does not include the indication information, thereby determining that the SCG failure occurs first and the MCG failure occurs later. When an SCG failure is detected while timer T316 is running, the related information includes the indication information. That is, after an MCG failure occurs (and during a fast MCG recovery process), when an SCG failure is detected, the related information includes the indication information, thereby determining that the MCG failure occurs first and the SCG failure occurs later. That is, the order in which the MCG failure and the SCG failure occur can be explicitly indicated based on whether the information indicating that the type of the first failure is a primary cell group failure is included.

[0072] As another possible implementation, the indication information includes timer T316 running indication information, or information for indicating the running duration of timer T316. The timer T316 running indication information is used to indicate whether T316 is running during the MCG failure process, for example, it can be represented by the information element "T316running". The running duration information indicating timer T316 can be represented by the information element "elapsedTimeT316", but the embodiment of the present application is not limited to this. If the relevant information includes the T316 running indication information, or includes the running duration information, it means that timer T316 is running, that is, the terminal device executes the fast MCG recovery process, that is, after the MCG failure occurs (and during the fast MCG recovery process), the SCG failure is detected, thereby, the network device can determine that the MCG failure occurs first and the SCG failure occurs later. If the relevant information does not include the T316 running indication information, or does not include the running duration information, it means that timer T316 is not running, that is, the MCG failure has not occurred when the SCG failure is detected. Therefore, the network device can determine that the SCG failure occurs first and the MCG failure occurs later. In other words, if timer T316 is running, the relevant information includes the information element T316running and its value is set to true, or includes the information element "elapsedTimeT316" and its value is set to the running duration of T316. If timer T316 is not running, the relevant information does not include the information element T316running, or does not include the information element "elapsedTimeT316". That is, the order of occurrence of MCG failure and SCG failure can be implicitly indicated based on whether the indication information indicating the timer T316 running is included, or whether the information indicating the running duration of timer T316 is included. In addition, the running duration information of T316 can also be used to optimize mobility parameters to further improve the robustness of MCG and / or SCG mobility.

[0073] As another possible implementation, the indication information includes timer T316 running indication information, and the timer T316 running indication information is used to indicate whether the timer T316 is running when the terminal device detects an SCG failure. For example, it can be represented by the information element "T316running". If the relevant information includes the T316 running indication information, it means that the timer T316 is running when the terminal device detects an SCG failure, that is, the terminal device executes the fast MCG recovery process, that is, after the MCG failure occurs (and during the fast MCG recovery process and after sending the fast MCG recovery message), the SCG failure is detected. Thus, the network device can determine that the MCG failure occurs first, the SCG failure occurs after the SCG failure, and the SCG failure occurs after sending the fast MCG recovery message. If the relevant information does not include the T316 running indication information, it means that the timer T316 is not running when the terminal device detects the SCG failure. That is to say, if the terminal device executes the fast MCG recovery process, that is, after the MCG failure occurs (and during the fast MCG recovery process and before sending the fast MCG recovery message), the SCG failure is detected. Therefore, the network device can determine that the MCG failure occurs first, then the SCG failure, and the SCG failure occurs before sending the fast MCG recovery message.

[0074] In this implementation, for the situation where the MCG failure occurs first and the SCG failure occurs later, the scenarios of Figures 3 and 12 can be further distinguished based on the indication information.

[0075] As another possible implementation, the indication information is used to indicate whether the terminal device detects an SCG failure when the timer T316 is running, or to indicate whether the terminal device detects an SCG failure before the timer T316 is started. For example, the indication information is used to indicate that the terminal device detects an SCG failure when the timer T316 is running, and the relevant information includes the indication information. That is, in a scenario where an MCG failure occurs, an SCG failure is detected, thereby determining that the MCG failure occurs first and the SCG failure occurs later, and at this time a fast MCG recovery message has been generated and sent. For example, the indication information is used to indicate that the terminal device detects an SCG failure before the timer T316 is started, and the relevant information includes the indication information. That is, if an SCG failure is detected in a scenario where an MCG failure occurs, thereby determining that the MCG failure occurs first and the SCG failure occurs later. However, the fast MCG recovery message has not been sent at this time.

[0076] In this implementation, for the situation where the MCG failure occurs first and the SCG failure occurs later, the scenarios of Figures 3 and 12 can be further distinguished based on the indication information.

[0077] Among the various implementations of the above indication information, one implementation may be implemented alone, or at least two implementations may be combined, and the embodiments of the present application are not limited thereto. Based on the indication information, the order of occurrence of MCG failure and SCG failure in at least two scenarios in Figures 2, 3, and 12 can be distinguished.

[0078] In some embodiments, the method may further include:

[0079] 402. The terminal device sends a first report to the first network device, where the first report is determined based on the relevant information.

[0080] It can be understood that the terminal device generates a first report based on the relevant information in step 401, and the first report includes all or part of the relevant information.

[0081] In some embodiments, when the terminal device accesses the first network device, the terminal device sends the first report to the first network device.

[0082] The above embodiments are merely exemplary descriptions of the methods of the present application, but the present application is not limited thereto, and appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used individually, or one or more of the above embodiments may be combined.

[0083] According to the embodiment of the present application, the terminal device can provide new indication information for determining the order in which the primary cell group failure and the secondary cell group failure occur, so that the network device can determine the corresponding failure scenario, thereby optimizing the corresponding MCG / SCG mobility parameters and improving the robustness of the MCG and / or SCG mobility.

[0084] Embodiments of the second aspect

[0085] An embodiment of the present application provides a report receiving method, which is described from the perspective of a first network device.

[0086] FIG5 is a schematic diagram of a report receiving method according to an embodiment of the present application. As shown in FIG3 , the method includes:

[0087] 501. A first network device receives a first report sent by a terminal device, where the first report is used to record information related to a primary cell group failure and a secondary cell group failure; wherein the related information includes indication information for determining an occurrence order of the primary cell group failure and the secondary cell group failure.

[0088] The content of the first report is described in step 401 in the above embodiment and will not be repeated here.

[0089] In some embodiments, after receiving the first report, the first network device may determine whether it is the network device described by the source MCG (hereinafter referred to as the second network device) based on the first report. If the first network device is the second network device, the first network device determines the order in which the MCG failure and the SCG failure occur based on the content of the first report, and performs corresponding MCG mobility-related parameter optimization.

[0090] In some embodiments, if the first network device is not the second network device, the first network device needs to forward the first report to the corresponding second network device.

[0091] In some embodiments, if a direct interface exists between the first network device and the second network device, the method may further include:

[0092] 502. The first network device sends the first report to the second network device.

[0093] In some embodiments, the first network device sends part or all of the information in the first report to the second network device via an interface between network devices (also referred to as a direct transmission mechanism). The interface between the first network device and the second network device may be an X2 interface or an Xn interface. Specifically, the first network device may send part or all of the information in the first report to the second network device via a failure indication message, a handover report message, an access and mobility message, or other message.

[0094] In some embodiments, if there is no direct interface between the first network device and the second network device, the first network device needs to first forward the first report to the core network device, and the core network device forwards the corresponding first report to the second network device. The method may also include:

[0095] 502', the first network device sends the first report to the core network device, where the first report includes relevant information.

[0096] As an example, the first network device sends part or all of the information of the first report to the core network device via the S1 or NG interface, and the core network device sends the first report received from the first network device to the second network device. Specifically, the first network device may send part or all of the information of the first report to the second network device via at least one of the following messages on the S1 or NG interface: an uplink RAN ​​configuration transfer message, a downlink uplink RAN ​​configuration transfer message, an eNB configuration transfer message, a mobility management entity configuration transfer message, or other messages.

[0097] At present, when 5G is independently deployed, the logical system of gNB can adopt a central unit (CU) and distributed unit (DU) separation mode. The embodiment of the present application provides a report receiving method, which is explained from the side of the first network device.

[0098] FIG6 is a schematic diagram of a report receiving method according to an embodiment of the present application. As shown in FIG6 , the method includes:

[0099] 601. A first network device receives a first report sent by a terminal device, where the first report is used to record information related to a primary cell group failure and a secondary cell group failure; wherein the related information includes indication information for determining an occurrence order of the primary cell group failure and the secondary cell group failure.

[0100] The content of the first report is described in step 201 in the above embodiment and will not be repeated here.

[0101] In some embodiments, the first network device may be a CU, and the method may further include:

[0102] 602. The first network device CU sends all or part of the first report information to the DU.

[0103] For example, if the CU can send part or all of the information in the first report to the DU corresponding to / belonging to the CU through the F1 interface. Specifically, part or all of the information in the first report is sent through at least one of the F1 setup response (F1 SETUP RESPONSE) message, the F1 setup failure (F1 SETUP FAILURE) message, the user equipment context setup request (UE CONTEXT SETUP REQUEST) message, the GNB-DU configuration update confirmation (GNB-DU CONFIGURATION UPDATE ACKNOWLEDGE) message, the GNB-DU configuration update failure (GNB-DU CONFIGURATION UPDATE FAILURE) message, and the GNB-CU configuration update (GNB-CU CONFIGURATION UPDATE) message.

[0104] In some embodiments, the first network device may be a DU, and the method may further include:

[0105] 602′, the first network device DU sends all or part of the information of the first report to the CU;

[0106] The above embodiments are merely exemplary descriptions of the methods of the present application, but the present application is not limited thereto, and appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used individually, or one or more of the above embodiments may be combined.

[0107] According to the embodiment of the present application, the terminal device can provide new indication information for determining the order in which the primary cell group failure and the secondary cell group failure occur, so that the network device can determine the corresponding failure scenario, thereby optimizing the corresponding MCG / SCG mobility parameters and improving the robustness of the MCG and / or SCG mobility.

[0108] Embodiments of the third aspect

[0109] An embodiment of the present application provides a report receiving method, which is described from the side of a core network device.

[0110] FIG7 is a schematic diagram of a report receiving method according to an embodiment of the present application. As shown in FIG7 , the method includes:

[0111] 701. The core network device receives a first report sent by the first network device, where the first report is used to record information related to the failure of the primary cell group and the failure of the secondary cell group; wherein the related information includes indication information for determining the order in which the failure of the primary cell group and the failure of the secondary cell group occur.

[0112] Regarding the implementation of 701, please refer to the second embodiment, which will not be repeated here.

[0113] In some embodiments, the method may further include:

[0114] 702. The core network device forwards the first report to the second network device.

[0115] As an example, the core network device sends part or all of the information of the first report to the second network device through the S1 or NG interface.

[0116] According to the embodiment of the present application, the terminal device can provide new indication information for determining the order in which the primary cell group failure and the secondary cell group failure occur, so that the network device can determine the corresponding failure scenario, thereby optimizing the corresponding MCG / SCG mobility parameters and improving the robustness of the MCG and / or SCG mobility.

[0117] Embodiments of the fourth aspect

[0118] An embodiment of the present application provides a report receiving method, which is described from the perspective of a second network device.

[0119] In some embodiments, the second network device receives a first report sent by the first network device.

[0120] In some embodiments, the second network device receives a first report sent by a core network device.

[0121] Regarding the content of the first report, please refer to the embodiment of the first aspect. The second network device can determine the order in which the MCG failure and the SCG failure occur based on the content of the first report.

[0122] The above embodiments are merely exemplary descriptions of the methods of the present application, but the present application is not limited thereto, and appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used individually, or one or more of the above embodiments may be combined.

[0123] According to the embodiment of the present application, the terminal device can provide new indication information for determining the order in which the primary cell group failure and the secondary cell group failure occur, so that the network device can determine the corresponding failure scenario, thereby optimizing the corresponding MCG / SCG mobility parameters and improving the robustness of the MCG and / or SCG mobility.

[0124] Embodiments of the fifth aspect

[0125] An embodiment of the present application provides a report recording device.

[0126] FIG8 is a schematic diagram of a report recording device according to an embodiment of the present application. This device may be, for example, a terminal device or one or more components or assemblies configured on the terminal device. Because the principle of solving the problem of this device is the same as that of the embodiment of the first aspect, its specific implementation can refer to the implementation of the method of the embodiment of the first aspect, and the same content will not be repeated here.

[0127] As shown in FIG8 , the device 800 includes:

[0128] Processor 801 detects a primary cell group (MCG) failure and a secondary cell group (SCG) failure, and records information related to the primary cell group failure and the secondary cell group failure; wherein the related information includes indication information for determining an occurrence order of the primary cell group failure and the secondary cell group failure. For implementation of the first report, please refer to the embodiment of the first aspect.

[0129] In some embodiments, the apparatus 800 may further include:

[0130] The transmitter 802 sends the first report to the first network device, where the first report is determined according to the related information.

[0131] The above embodiments of the present application are illustrative, but the present application is not limited thereto, and appropriate modifications can be made based on the above embodiments. For example, the above embodiments can be used alone, or one or more of the above embodiments can be combined.

[0132] It is worth noting that the above description only describes the components or modules related to this application, but this application is not limited thereto. The above-mentioned device may also include other components or modules. For the specific content of these components or modules, please refer to the relevant art. In addition, the above-mentioned components or modules can be implemented by hardware facilities such as processors, memories, transmitters, and receivers; the implementation of this application is not limited to this.

[0133] According to the embodiment of the present application, the terminal device can provide new indication information for determining the order in which the primary cell group failure and the secondary cell group failure occur, so that the network device can determine the corresponding failure scenario, thereby optimizing the corresponding MCG / SCG mobility parameters and improving the robustness of the MCG and / or SCG mobility.

[0134] Embodiments of the sixth aspect

[0135] An embodiment of the present application also provides a communication system, including a network device and / or a terminal device, wherein the network device includes a first network device, a second network device and / or a core network device.

[0136] Figure 9 is a schematic diagram of a communication system in an embodiment of the present application. As shown in Figure 9, the communication system 900 may include a first network device 901, a second network device 902, a terminal device 903, and a core network device 904.

[0137] In some embodiments, the first network device 901, the second network device 902, the terminal device 903, and the core network device 904 are configured to perform the method described in the embodiments of the first, second, third, or fourth aspects. Since the method has been described in detail in the embodiments of the first, second, third, or fourth aspects, the content is incorporated herein and is not repeated.

[0138] An embodiment of the present application also provides a terminal device.

[0139] Figure 10 is a schematic diagram of a terminal device according to an embodiment. As shown in Figure 10 , terminal device 1000 may include a processor 1010 and a memory 1020. Memory 1020 stores data and programs and is coupled to processor 1010. It should be noted that this diagram is exemplary; other types of structures may be used to supplement or replace this structure to implement telecommunication or other functions.

[0140] For example, the processor 1010 may be configured to execute a program to implement the method in the embodiment of the first aspect.

[0141] As shown in Figure 10 , the terminal device 1000 may further include: a communication module 1030, an input unit 1040, a display 1050, and a power supply 1060. The functions of these components are similar to those in the prior art and are not described in detail here. It is worth noting that the terminal device 1000 does not necessarily include all of the components shown in Figure 10 , and these components are not essential. Furthermore, the terminal device 1000 may also include components not shown in Figure 10 , for which reference may be made to the prior art.

[0142] An embodiment of the present application also provides a network device, which may be, for example, a base station, a CU, a DU, or a core network device, but the present application is not limited thereto and may also be other network devices.

[0143] Figure 11 is a schematic diagram of a network device according to an embodiment of the present application. As shown in Figure 11 , network device 1100 may include a processor 1101 and a memory 1102 ; the memory 1102 is coupled to the processor 1101 . The memory 1102 may store various data and may also store an information processing program 1103 , which is executed under the control of the processor 1101 .

[0144] In some embodiments, the processor 1101 can be configured to execute a program to implement a method as an embodiment of the second, third or fourth aspect, for example, controlling the receiver (transceiver 1104) to receive the first report, and / or controlling the transmitter (transceiver 1104) to forward the first report, the contents of which are incorporated herein and will not be repeated here.

[0145] Furthermore, as shown in FIG11 , network device 1100 may further include a transceiver 1104 and an antenna 1105. The functions of these components are similar to those in the prior art and are not described in detail here. It is worth noting that network device 1100 does not necessarily include all of the components shown in FIG11 ; furthermore, network device 1100 may also include components not shown in FIG11 , for which reference may be made to the prior art.

[0146] An embodiment of the present application further provides a computer program, wherein when the program is executed in a network device, the program causes the network device to execute the method described in the embodiment of the second, third or fourth aspect.

[0147] An embodiment of the present application further provides a storage medium storing a computer program, wherein the computer program enables a network device to execute the method described in the embodiment of the second, third, or fourth aspect.

[0148] The above network device may be a first network device, a second network device, or a core network device.

[0149] An embodiment of the present application further provides a computer program, wherein when the program is executed in a terminal device, the program causes the terminal device to execute the method described in the embodiment of the first aspect.

[0150] An embodiment of the present application further provides a storage medium storing a computer program, wherein the computer program enables a terminal device to execute the method described in the embodiment of the first aspect.

[0151] The above devices and methods of the present application can be implemented by hardware or by a combination of hardware and software. The present application relates to such a computer-readable program that, when executed by a logic component, enables the logic component to implement the devices or components described above, or enables the logic component to implement the various methods or steps described above. The present application also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.

[0152] The method / device described in conjunction with the embodiments of the present application can be directly embodied as hardware, a software module executed by a processor, or a combination of the two. For example, one or more of the functional block diagrams shown in the figure and / or one or more combinations of functional block diagrams can correspond to various software modules of the computer program flow or to various hardware modules. These software modules can respectively correspond to the various steps shown in the figure. These hardware modules can be implemented by solidifying these software modules, for example, using a field programmable gate array (FPGA).

[0153] The software module may be located in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. A storage medium may be coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium; or the storage medium may be an integral part of the processor. The processor and the storage medium may be located in an ASIC. The software module may be stored in the memory of the mobile terminal or in a memory card that can be inserted into the mobile terminal. For example, if the device (such as a mobile terminal) uses a large-capacity MEGA-SIM card or a large-capacity flash memory device, the software module may be stored in the MEGA-SIM card or the large-capacity flash memory device.

[0154] One or more of the functional blocks and / or one or more combinations of functional blocks described in the accompanying drawings may be implemented as a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or any appropriate combination thereof for performing the functions described in this application. One or more of the functional blocks and / or one or more combinations of functional blocks described in the accompanying drawings may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in communication with a DSP, or any other such configuration.

[0155] The present application has been described above in conjunction with specific embodiments. However, those skilled in the art should understand that these descriptions are merely illustrative and are not intended to limit the scope of protection of the present application. Those skilled in the art may make various modifications and variations to the present application based on the spirit and principles of the present application, and such modifications and variations are also within the scope of the present application.

Claims

1. A reporting and recording device, applied to a terminal device, comprising: a processor that detects a primary cell group (MCG) failure and a secondary cell group (SCG) failure, and records information related to the primary cell group failure and the secondary cell group failure; wherein the related information includes indication information for determining the occurrence order of the primary cell group failure and the secondary cell group failure.

2. The device according to claim 1, wherein, The processor detecting the primary cell group failure and the secondary cell group failure includes: The processor detects an SCG failure while the timer T316 is running or before starting the fast MCG recovery process or before sending the fast MCG recovery message.

3. The device according to claim 1, wherein, The indication information includes first failure time information, and the first failure time information is used to indicate the time information elapsed from the occurrence of the secondary cell group failure to the occurrence of the primary cell group failure.

4. The device according to claim 3, wherein, The processor detects an SCG failure before starting the fast MCG recovery process, and the indication information includes the first failure time information.

5. The device according to any one of claims 1 to 4, wherein, The indication information includes second failure time information, and the second failure time information is used to indicate the time information elapsed from the occurrence of the primary cell group failure to the occurrence of the secondary cell group failure, or is used to indicate the time information elapsed from the sending of the primary cell group failure message to the occurrence of the secondary cell group failure.

6. The apparatus according to claim 5, wherein, The processor detects an SCG failure while the timer T316 is running or after starting the fast MCG recovery process but before the timer T316 stops running, and the indication information includes the second failure time information.

7. The apparatus according to claim 1, wherein The indication information includes type information for indicating the type of the first failure.

8. The device according to claim 7, wherein the processor detects an SCG failure before starting the fast MCG recovery process, and the type information is set to the secondary cell group failure, and / or the processor detects an SCG failure while the timer T316 is running or after starting the fast MCG recovery process but before the timer T316 stops running, and the type information is set to the primary cell group failure.

9. The apparatus according to claim 1, wherein The indication information includes information for indicating that the type of the first failure is the secondary cell group failure.

10. The device according to claim 9, wherein, The processor detects an SCG failure before starting the fast MCG recovery process, and the related information includes the indication information.

11. The apparatus according to claim 9, wherein, The processor detects an SCG failure while the timer T316 is running or after starting the fast MCG recovery process but before the timer T316 stops running, and the related information does not include the indication information.

12. The device according to claim 1, wherein, The indication information includes information for indicating that the type of the first failure is the primary cell group failure.

13. The apparatus according to claim 12, wherein, The processor detects an SCG failure before starting the fast MCG recovery process, and the related information does not include the indication information.

14. The apparatus according to claim 12, wherein, The processor detects an SCG failure while the timer T316 is running or after starting the fast MCG recovery process but before the timer T316 stops running, and the related information includes the indication information.

15. The device according to claim 1 or 2, wherein The indication information includes information for indicating the running duration of timer T316, or includes timer T316 running indication information, where the timer T316 running indication information is used to indicate whether timer T316 runs during the MCG failure process, or is used to indicate whether timer T316 runs when the terminal device detects an SCG failure.

16. The device according to claim 1 or 2, wherein The indication information includes information for indicating whether the terminal device detects the SCG failure when timer T316 is running, or is used to indicate whether the terminal device detects the SCG failure before timer T316 is started.

17. The device according to claim 15, wherein, The primary cell group failure occurs first, and the secondary cell group failure occurs later.

18. The apparatus according to claim 1, further comprising: A transmitter that sends a first report to a network device, where the first report is determined according to the relevant information.

19. A report receiving device, applied to a first network device, wherein, The apparatus comprises: A receiver that receives a first report sent by a terminal device, where the first report is used to record information related to the primary cell group failure and the secondary cell group failure; Wherein, the relevant information includes indication information for determining the occurrence order of the primary cell group failure and the secondary cell group failure.

20. A report receiving device, applied to a core network device, wherein, The apparatus comprises: A receiver that receives a first report sent by a first network device, where the first report is used to record information related to the primary cell group failure and the secondary cell group failure; Wherein, the relevant information includes indication information for determining the occurrence order of the primary cell group failure and the secondary cell group failure.

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