Information sending method and apparatus, information receiving method and apparatus, and communication system and storage medium

Abstract

The present disclosure relates to the technical field of communications, and specifically relates to an information sending method and apparatus, an information receiving method and apparatus, and a communication system and a storage medium. The information sending method comprises: handing over from a first node to a second node; and sending first information to the second node on the basis of first configuration information, wherein the first information is used by the second node to determine whether a terminal has undergone an unnecessary handover. On the basis of the present disclosure, the terminal sends the first information to the second node on the basis of the first configuration information, and on the basis of the first information, the second node can determine whether the terminal has undergone the unnecessary handover, such that the second node or other network devices can implement appropriate adjustments when the terminal has undergone the unnecessary handover, thereby helping to prevent subsequent recurrence of the unnecessary handover from causing resource waste.

Description

Information sending and receiving method and device, communication system and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to an information sending method, an information receiving method, an information sending device, an information receiving device, a terminal, a node, a communication device, and a storage medium. Background Art

[0002] When a terminal communicates within a cell of a wireless network, it can perform handover (HO) between cells if certain conditions are met, which helps ensure good communication quality of the terminal within the cell. However, there are still some technical issues that need to be solved during the cell handover process.

[0003] Summary of the Invention

[0004] The embodiments of the present disclosure provide information sending and receiving methods and devices, a communication system, and a storage medium to solve the problem of resource waste caused by unnecessary switching in related technologies.

[0005] According to a first aspect of an embodiment of the present disclosure, a method for sending information is proposed, which is executed by a terminal. The method includes: switching from a first node to a second node; sending first information to the second node according to first configuration information, wherein the first information is used by the second node to determine whether an unnecessary switching has occurred at the terminal.

[0006] According to a second aspect of an embodiment of the present disclosure, a method for receiving information is proposed, which is executed by a second node. The method includes: receiving first information sent according to first measurement configuration information after the terminal switches from the first node to the second node, wherein the first information is used by the second node to determine whether an unnecessary switching has occurred to the terminal.

[0007] According to the third aspect of an embodiment of the present disclosure, an information sending device is proposed, which includes: a processing module configured to switch from a first node to a second node; a sending module configured to send first information to the second node according to first configuration information, wherein the first information is used by the second node to determine whether an unnecessary switching has occurred to the terminal.

[0008] According to a fourth aspect of an embodiment of the present disclosure, an information receiving device is proposed, comprising: a receiving module configured to receive first information sent according to first measurement configuration information after the terminal switches from a first node to a second node, wherein the first information is used by the second node to determine whether an unnecessary switching has occurred to the terminal.

[0009] According to a fifth aspect of an embodiment of the present disclosure, a terminal is proposed, comprising: one or more processors; wherein the terminal is used to execute the information sending method described in the first aspect.

[0010] According to a sixth aspect of an embodiment of the present disclosure, a node is proposed, comprising: one or more processors; wherein the node is used to execute the information receiving method described in the second aspect.

[0011] According to the seventh aspect of an embodiment of the present disclosure, a communication system is proposed, comprising a terminal and a second node, wherein the terminal is configured to implement the information sending method described in the first aspect, and the second node is configured to implement the information receiving method described in the second aspect.

[0012] According to an eighth aspect of an embodiment of the present disclosure, a storage medium is proposed, which stores instructions. When the instructions are executed on a communication device, the communication device executes the information sending method described in the first aspect and / or the information receiving method described in the second aspect.

[0013] According to the ninth aspect of the embodiment of the present disclosure, a program product is proposed. When the program product is executed by a communication device, the communication device executes the information sending method described in the first aspect and / or the information receiving method described in the second aspect.

[0014] According to an embodiment of the present disclosure, the terminal sends the first information to the second node based on the first configuration information. The second node can determine whether the terminal has undergone unnecessary switching based on the first information, so that the second node or other network devices can make appropriate adjustments when the terminal has undergone unnecessary switching, which is conducive to avoiding unnecessary switching from occurring again in the future and causing waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0016] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0017] FIG2A is an interactive schematic diagram illustrating a method for sending information according to an embodiment of the present disclosure.

[0018] FIG2B is an interactive diagram illustrating another information sending method according to an embodiment of the present disclosure.

[0019] FIG3 is a schematic flowchart showing a method for sending information according to an embodiment of the present disclosure.

[0020] FIG4 is a schematic flow chart showing a method for receiving information according to an embodiment of the present disclosure.

[0021] FIG5 is a schematic block diagram of an information sending device according to an embodiment of the present disclosure.

[0022] FIG6 is a schematic block diagram of an information receiving device according to an embodiment of the present disclosure.

[0023] FIG7A is a schematic structural diagram of a communication device proposed in an embodiment of the present disclosure.

[0024] FIG7B is a schematic diagram of the structure of the chip proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0025] The embodiments of the present disclosure provide methods and devices for sending and receiving information, a communication system, and a storage medium.

[0026] In a first aspect, an embodiment of the present disclosure proposes an information sending method, which is executed by a terminal, and the method includes: switching from a first node to a second node; sending first information to the second node according to first configuration information, wherein the first information is used by the second node to determine whether an unnecessary switching has occurred to the terminal.

[0027] In the above embodiment, the terminal sends the first information to the second node according to the first configuration information. The second node can determine whether the terminal has undergone unnecessary switching based on the first information, so that the second node or other network devices can make appropriate adjustments when the terminal has undergone unnecessary switching, which is conducive to avoiding unnecessary switching from occurring again in the future and causing waste of resources.

[0028] In conjunction with some embodiments of the first aspect, in some embodiments, the first configuration information is pre-stored by the terminal; or the first configuration information is sent to the terminal by the first node; or the first configuration information is sent to the terminal by the second node.

[0029] In combination with some embodiments of the first aspect, in some embodiments, the first configuration information is sent by the first node to the second node, and then sent by the second node to the terminal.

[0030] In conjunction with some embodiments of the first aspect, in some embodiments, the first configuration information includes at least one of the following: first measurement configuration information; first range information; first time information; and first threshold information.

[0031] In combination with some embodiments of the first aspect, in some embodiments, the relationship between the first information and the second threshold information satisfies a predefined relationship, and the first information is used by the second node to determine that unnecessary handover has occurred to the terminal.

[0032] In combination with some embodiments of the first aspect, in some embodiments, the terminal switches to the first cell within a first duration threshold, and the first information is not used by the second node to determine that unnecessary switching of the terminal occurs.

[0033] In combination with some embodiments of the first aspect, in some embodiments, the terminal switches to a first cell, the first cell is an LTM candidate cell in an LTM configuration, and the first information is used by the second node to determine that an unnecessary handover occurs to the terminal.

[0034] In combination with some embodiments of the first aspect, in some embodiments, the method further includes: sending capability information to the second node, wherein the capability information is used to indicate whether the terminal supports sending the first information to the second node according to the first configuration information.

[0035] In a second aspect, an embodiment of the present disclosure proposes an information receiving method, which is executed by a second node. The method includes: receiving first information sent according to first measurement configuration information after the terminal switches from the first node to the second node, wherein the first information is used by the second node to determine whether an unnecessary switch has occurred to the terminal.

[0036] In conjunction with some embodiments of the second aspect, in some embodiments, the first configuration information is pre-stored by the terminal; or, the first configuration information is sent to the terminal by the first node; or, the first configuration information is sent to the terminal by the second node.

[0037] In conjunction with some embodiments of the second aspect, in some embodiments, the first configuration information is sent by the first node to the second node, and then sent by the second node to the terminal.

[0038] In conjunction with some embodiments of the second aspect, in some embodiments, the first configuration information includes at least one of the following: first measurement configuration information; first range information; first time information; and first threshold information.

[0039] In combination with some embodiments of the second aspect, in some embodiments, the relationship between the first information and the second threshold information satisfies a predefined relationship, and the first information is used by the second node to determine that unnecessary handover has occurred to the terminal.

[0040] In combination with some embodiments of the second aspect, in some embodiments, the terminal switches to the first cell within a first duration threshold, and the first information is not used by the second node to determine that unnecessary switching of the terminal occurs.

[0041] In combination with some embodiments of the second aspect, in some embodiments, the terminal switches to a first cell, the first cell is an LTM candidate cell in an LTM configuration, and the first information is used by the second node to determine that an unnecessary handover occurs to the terminal.

[0042] In combination with some embodiments of the second aspect, in some embodiments, the method further includes: in response to the first information being used by the second node to determine that an unnecessary handover has occurred to the terminal, sending a report to the first node, wherein the report is used to indicate that an unnecessary handover has occurred to the terminal.

[0043] In combination with some embodiments of the second aspect. In some embodiments, the report includes at least one of the following: a target cell identifier for non-essential handover; a source cell identifier for non-essential handover; handover indication information indicating that the terminal will handover to the first cell within a first time period; a handover type for non-essential handover; a non-essential handover problem indication: an identifier of at least one cell, wherein the relationship between the first information corresponding to the at least one cell and the second threshold information satisfies a predefined relationship.

[0044] In combination with some embodiments of the second aspect, in some embodiments, the method further includes: sending capability information to the second node, wherein the capability information is used to indicate whether the terminal supports sending the first information to the second node according to the first configuration information.

[0045] In the third aspect, an embodiment of the present disclosure proposes an information sending device, which includes: a processing module, configured to switch from a first node to a second node; a sending module, configured to send first information to the second node according to first configuration information, wherein the first information is used by the second node to determine whether an unnecessary switch has occurred to the terminal.

[0046] In a fourth aspect, an embodiment of the present disclosure proposes an information receiving device, which includes: a receiving module, configured to receive first information sent according to first measurement configuration information after the terminal switches from a first node to a second node, wherein the first information is used by the second node to determine whether an unnecessary switch has occurred to the terminal.

[0047] In a fifth aspect, an embodiment of the present disclosure proposes a terminal, comprising: one or more processors; wherein the terminal is used to execute the information sending method described in any one of the first aspect and the optional embodiments of the first aspect.

[0048] In a sixth aspect, an embodiment of the present disclosure proposes a node, comprising: one or more processors; wherein the node is used to execute the information receiving method described in any one of the second aspect and the optional embodiments of the second aspect.

[0049] In the seventh aspect, an embodiment of the present disclosure proposes a communication system, including a terminal and a second node, wherein the terminal is configured to implement the information sending method described in any one of the first aspect and the optional embodiments of the first aspect, and the second node is configured to implement the information receiving method described in any one of the second aspect and the optional embodiments of the second aspect.

[0050] In the eighth aspect, an embodiment of the present disclosure proposes a storage medium, which stores instructions. When the instructions are executed on a communication device, the communication device executes the information sending method described in any one of the first aspect and the optional embodiments of the first aspect, and / or the information receiving method described in any one of the second aspect and the optional embodiments of the second aspect.

[0051] In the ninth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the information sending method described in any one of the first aspect and the optional embodiments of the first aspect, and / or the information receiving method described in any one of the second aspect and the optional embodiments of the second aspect.

[0052] In the tenth aspect, an embodiment of the present disclosure proposes a computer program, which, when running on a computer, enables the computer to execute the information sending method described in any one of the first aspect and the optional embodiments of the first aspect, and / or the information receiving method described in any one of the second aspect and the optional embodiments of the second aspect.

[0053] It is understandable that the above-mentioned information sending and receiving devices, communication equipment, communication systems, storage media, program products, and computer programs are all used to execute the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0054] The present disclosure provides information sending and receiving methods and devices, a communication system, and a storage medium. In some embodiments, the terms "information sending and receiving methods" and "information processing methods" and "communication methods" are interchangeable; the terms "information sending and receiving devices" and "information processing devices" and "communication devices" are interchangeable; and the terms "information processing systems" and "communication systems" are interchangeable.

[0055] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0056] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0057] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0058] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular form, such as "a", "an", "the", "above", "said", "aforementioned", "this", etc., may mean "one and only one", or "one or more", "at least one", etc.

[0059] For example, when using articles such as “a”, “an”, and “the” in English in translation, the noun following the article can be understood as a singular expression or a plural expression.

[0060] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0061] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0062] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0063] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0064] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restrictions on the position, order, priority, quantity or content of the description objects. For the statement of the description objects, please refer to the description in the context of the claims or embodiments, and no unnecessary restrictions should be constituted due to the use of prefixes.

[0065] For example, if the description object is "field," the ordinal number preceding "field" in "first field" and "second field" does not restrict the position or order of the "fields." "First" and "second" do not restrict whether the modified "fields" are in the same message, nor do they restrict the order of the "first field" and "second field." For another example, if the description object is "level," the ordinal number preceding "level" in "first level" and "second level" does not restrict the priority of the "levels." For another example, the number of description objects is not restricted by the ordinal number and can be one or more. For example, in the case of "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the description object is "device," "first device" and "second device" can be the same or different devices, and their types can be the same or different. For another example, if the description object is "information," "first information" and "second information" can be the same or different information, and their content can be the same or different.

[0066] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0067] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0068] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "no more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0069] In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.

[0070] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0071] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station" "fixed station", "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)", "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)" and the like may be used interchangeably.

[0072] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc. can be used interchangeably.

[0073] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

[0074] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

[0075] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0076] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0077] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0078] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0079] As shown in Figure 1, the communication system 100 includes a terminal 101, a second node 102 and a third node 103, wherein the first node and the second node may, for example, include network equipment, cells, relay equipment, satellites in non-terrestrial networks, etc., and the network equipment includes at least one of the following: access network equipment and core network equipment.

[0080] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0081] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0082] In some embodiments, a core network device may be a device including one or more network elements, or may be multiple devices or device groups, each including all or part of the one or more network elements. The network element may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0083] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0084] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0085] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0086] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or a portion thereof, but are not limited thereto. The entities shown in FIG1 are illustrative only. The communication system may include all or part of the entities shown in FIG1 , or may include other entities outside of FIG1 . The number and form of the entities are arbitrary, and the entities may be physical or virtual. The connection relationships between the entities are illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0087] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0088] In some embodiments, when a terminal communicates within a cell of a wireless network, it may perform a handover operation between cells, thereby switching from a source cell to a target cell. When the source cell and the target cell are cells of different nodes, handover of the terminal from the source cell to the target cell also constitutes an inter-node handover.

[0089] In some embodiments, the operation of the terminal switching cells can be instructed by a network device. For example, the network device can compare the measurement result obtained by the terminal measuring the cell with the switching threshold, and determine whether to instruct the terminal to switch cells based on the comparison result. For example, when it is determined that the terminal needs to be instructed to switch cells, the terminal can be instructed to switch to the target cell or the target node through signaling, where the signaling can include, for example, Radio Resource Control (RRC) signaling or other signaling. Then, according to the signaling sent by the network device, the terminal can perform a switching operation, such as switching to the target cell or target node indicated by the signaling.

[0090] In some cases, for some reasons, such as unreasonable setting of the handover threshold, the terminal may switch from the source cell to the target cell and then switch back to the source cell. In this case, the handover operation performed by the terminal is unnecessary, which will waste network resources.

[0091] FIG2A is an interactive schematic diagram illustrating a method for sending information according to an embodiment of the present disclosure.

[0092] As shown in FIG2A , the information sending method may include the following steps:

[0093] In step S201 , the terminal switches from a first node to a second node.

[0094] In some embodiments, the first node may refer to a network device (eg, a base station) or a cell.

[0095] In some embodiments, the second node may refer to a network device (eg, a base station) or a cell.

[0096] In some embodiments, the terminal may send the first information to the second node according to the first configuration information.

[0097] For example, the first configuration information may indicate resources for sending the first information. The terminal sending the first information to the second node according to the first configuration information may mean that the terminal sends the first information to the second node on the resources indicated by the first configuration information.

[0098] For example, the first configuration information may include measurement configuration information of a cell measured by the terminal, such as indicating the cell to be measured, resources where the measurement operation is performed, etc. The terminal sending the first information to the second node according to the first configuration information may mean that the terminal measures the cell according to the first configuration information and sends a measurement result obtained by the measurement, that is, the first information, to the second node.

[0099] In some embodiments, the first information is used by the second node to determine whether an unnecessary handover of the terminal has occurred. For example, based on the first information, the second node can determine whether a handover of the terminal from the first node to the second node was an unnecessary handover. How the first information is used by the second node to determine whether an unnecessary handover of the terminal has occurred is not discussed here and will be described in subsequent embodiments.

[0100] According to an embodiment of the present disclosure, the terminal sends the first information to the second node based on the first configuration information. The second node can determine whether the terminal has undergone unnecessary switching based on the first information, so that the second node or other network devices can make appropriate adjustments when the terminal has undergone unnecessary switching, which is conducive to avoiding unnecessary switching from occurring again in the future and causing waste of resources.

[0101] In some embodiments, the first configuration information includes at least one of the following:

[0102] first measurement configuration information;

[0103] First range information;

[0104] First-time information;

[0105] First threshold information.

[0106] For example, the first measurement configuration may indicate resources (eg, time domain resources, frequency domain resources) on which the terminal performs the measurement operation, and the terminal may perform the measurement operation on the resources indicated by the first measurement configuration.

[0107] For example, the first configuration information is related to the LTM.

[0108] For example, the first range information may indicate a range in which the terminal performs a measurement operation, such as indicating a cell that the terminal needs to measure, wherein the cell that the terminal needs to measure may include one or more LTM (Layer 1 or Layer 2 Triggered Mobility, L1 / L2-Triggered Mobility) candidate cells. For example, the first range information includes LTM-related coverage information, and the LTM-related coverage information includes one or more LTM candidate cells.

[0109] For example, the first time information may indicate a time range (e.g., represented by a period) within which the terminal performs a measurement operation. The terminal may evaluate the first information obtained within the time range and send the first information that meets the evaluation condition to the second node. For example, the first time information includes an LTM-related measurement period, which is used to evaluate the cell signal quality within a certain period of time.

[0110] For example, the first threshold information may include at least one of the following: a recording threshold and an evaluation threshold. After obtaining the first information, the terminal may compare the first information with the recording threshold. If the first information satisfies a predefined relationship with the recording threshold (for example, the first information is greater than the evaluation threshold, or the first information is less than the evaluation threshold, or the first information is equal to the evaluation threshold), the terminal may record the first information.

[0111] Furthermore, the terminal can compare the first information with the evaluation threshold. If the first information satisfies a predefined relationship with the evaluation threshold (for example, the first information is greater than the evaluation threshold, or the first information is less than the evaluation threshold, or the first information is equal to the evaluation threshold), the terminal determines that the first information satisfies the evaluation threshold, and then sends the first information to the second node.

[0112] The first threshold information may include at least one of the following: RSRP (Reference Signal Receiving Power) threshold, RSRQ (Reference Signal Receiving Quality) threshold, and SINR (Signal to Interference plus Noise Ratio) threshold.

[0113] It should be noted that, in addition to being used by the terminal to perform evaluation operations, the first configuration information can also be used by the second node to perform evaluation operations. For example, the second node can determine whether an unnecessary switching has occurred in the terminal based on the first range information, first time information, first threshold information and other information in the first configuration information. This will be explained in detail in subsequent embodiments.

[0114] In some embodiments, regarding the first configuration information, for example, the first configuration information is pre-stored by the terminal; for example, the first configuration information is sent by the first node to the terminal; for example, the first configuration information is sent by the second node to the terminal; for example, the first configuration information is sent by the first node to the second node and then sent by the second node to the terminal. Of course, it is not limited to being sent by the first node to the second node, and can also be sent by other devices to the second node. Please refer to the embodiments below for details.

[0115] In some embodiments, before switching from a first node to a second node, the terminal may, while in a cell of the first node (e.g., cell #0), perform a measurement operation according to the first configuration information, such as measuring the signal strengths of cells #1 to #n (n cells in total), and send the measurement results to the first node. The first node may instruct the terminal to perform a handover operation based on the measurement results. For example, the first node determines, based on a handover threshold, that the terminal needs to switch to cell #1 of the n cells, and cell #1 is a cell of the second node, thereby instructing the terminal to switch to the second node (e.g., switch to cell #1 of the second node).

[0116] However, since the terminal may switch from the first node to the second node unnecessarily, after switching to the second node, the terminal can still perform measurement operations on the above-mentioned n cells according to the first configuration information, and send the measured first information to the second node. The second node can determine whether the terminal has undergone unnecessary switching based on the first information (for example, including the measurement results of each of the n cells), for example, whether the terminal's switching from the first node to the second node is unnecessary.

[0117] The first configuration information based on which the terminal determines the first information at the second node may be pre-stored by the terminal, for example, determined by the terminal based on a protocol agreement;

[0118] Alternatively, the first configuration information may be sent by the first node to the terminal when the terminal is at the first node, and the terminal does not delete the first configuration after switching to the second node;

[0119] Alternatively, the first configuration information is sent to the terminal by the second node after the terminal switches to the second node. For example, the first configuration information can be sent to the second node by other network devices, such as the core network, OAM (Operation Administration and Maintenance), and the first node.

[0120] When the first configuration information is sent to the second node by other network devices, the other devices may also send indication information (eg, including the terminal identifier) ​​to the second node, where the indication information is used to indicate the terminal so that the second node can send the first configuration information to the terminal.

[0121] It should be noted that the measurement result may include at least one of the following: a radio resource management (RRM) measurement result, an L1 measurement result, and a measurement result obtained based on an LTM measurement configuration. The measurement result may be, for example, a cell-level or beam-level result, such as a result obtained by measuring one or more beams. The measured beam may be autonomously selected by the terminal, indicated by a network device, or determined based on a protocol.

[0122] In some embodiments, the second node determines, based on the first information, that an unnecessary handover has occurred to the terminal, and may send a report to the first node, where the report is used to indicate that an unnecessary handover has occurred to the terminal.

[0123] Accordingly, the first node can determine, based on the report from the second node, that an unnecessary switch has occurred in the terminal, for example, determining that the terminal's switching from the first node to the second node is an unnecessary operation, and thus appropriately adjust the relevant parameters that trigger the first node to instruct the terminal to perform the switching operation, so as to avoid subsequent triggering of the first node to instruct the terminal to perform unnecessary switching and cause waste of resources.

[0124] It should be noted that when the second node determines that an unnecessary switch has occurred in the terminal, it can send a report indicating that an unnecessary switch has occurred in the terminal to the first node as shown in the previous embodiment, or it can send the report to other network devices, such as to the core network, OAM or other nodes (nodes other than the first node and the second node).

[0125] In some embodiments, the relevant parameters that trigger the first node to instruct the terminal to perform a handover operation may include at least one of the following: a handover threshold, measurement resources (eg, time domain resources, frequency domain resources), and a measurement object (eg, a cell).

[0126] Taking the example of a first node instructing a terminal to switch from the first node to a second node based on a handover threshold, the terminal measures n cells according to the first configuration information and sends the obtained measurement results to the first node. The first node compares the measurement results with the handover threshold. If a measurement result is greater than the handover threshold, the first node may instruct the terminal to switch to the cell corresponding to the measurement result greater than the handover threshold (e.g., the cell of the second node).

[0127] When the first node determines, based on the report from the second node, that the terminal has undergone unnecessary handover, it may appropriately adjust the handover threshold, for example, to a larger value or a smaller value. The specific adjustment method depends on the implementation of the first node. This allows the terminal in the first node to be instructed to perform a handover operation based on the adjusted handover threshold in a subsequent manner, thereby minimizing the risk of instructing the terminal to perform an unnecessary handover operation.

[0128] In some embodiments, after receiving the first information, the second node may determine whether the relationship between the first information and the second threshold information satisfies a predefined relationship. For example, the second threshold information may indicate a second threshold. The predefined relationship includes at least one of the following: the first information is greater than the second threshold, the first information is less than the second threshold, or the first information is equal to the second threshold.

[0129] For example, the second threshold information may indicate a second threshold, for example, the second threshold includes an LTM-related signal quality threshold, for example, may specifically include at least one of an RSRP threshold, an RSRQ threshold, and an SINR threshold.

[0130] For example, the second node determines whether an unnecessary switching occurs in the terminal based on the first information, which may include determining whether the first information and the second threshold information (for example, the second threshold indicated by the second threshold information) satisfy a predefined relationship. When the first information and the second threshold information satisfy the predefined relationship, the second node can determine that an unnecessary switching occurs in the terminal, and thus send a report to the first node. The report can indicate to the first node that an unnecessary switching occurs in the terminal.

[0131] It should be noted that whether the relationship between the first information and the second threshold information satisfies the predefined relationship may include at least one of the following: the relationship between the first information and the second threshold information satisfies the predefined relationship once, or the relationship between the first information and the second threshold information satisfies the predefined relationship multiple times (the number of times can be determined based on the protocol agreement or indicated by the network device), or the relationship between the first information and the second threshold information always satisfies the predefined relationship.

[0132] For example, the terminal may measure n (n is a value equal to or greater than 1) cells according to the first configuration information, thereby obtaining n measurement results. For example, one measurement result may be referred to as one first information.

[0133] For example, after the second node receives n first information, it can compare each of the first information with the second threshold. If at least one first information satisfies a predefined relationship with the second threshold, for example, at least one first information is greater than the second threshold, it can be determined that the first information satisfies the predefined relationship with the second threshold.

[0134] For example, after receiving n pieces of first information, the second node may compare each piece of first information with the second threshold. If m pieces of first information among the n pieces of first information satisfy a predefined relationship with the second threshold, for example, if all m pieces of first information are greater than the second threshold, it can be determined that the first information and the second threshold satisfy the predefined relationship. Here, m is a value greater than or equal to the number of times in the above example.

[0135] For example, after the second node receives n first information, it can compare each of the first information with the second threshold. If there is a predefined relationship between each first information and the second threshold, for example, each first information is greater than the second threshold, it can be determined that the first information and the second threshold meet the predefined relationship.

[0136] For example, the first information sent by the terminal to the second node may include n first information, where the multiple information corresponds to measurement results obtained by the terminal measuring n cells according to the first configuration information, and each first information corresponds to the measurement result of the terminal measuring one cell.

[0137] After receiving n pieces of first information, the second node may compare each piece of first information with the second threshold information to determine whether the relationship between the first information and the second threshold information satisfies a predefined relationship. If the relationship between the first information and the second threshold information satisfies the predefined relationship, the second node may determine that an unnecessary handover has occurred in the terminal, and thus send a report to the first node.

[0138] Taking the predefined relationship including the first information being greater than the second threshold as an example, when there is first information greater than the second threshold, and the first information greater than the second threshold is the first information obtained by the terminal measuring the cell of the first node, then the second node can determine that there are still cells in the cell of the first node that can provide the terminal with services that meet the requirements, so the terminal does not need to switch to the second node, and therefore it can be determined that the terminal's switching from the first node to the second node is unnecessary switching.

[0139] In some embodiments, the first configuration information includes first range information. For example, the cell indicated by the first range information may include an LTM candidate cell. The terminal measures one or more cells indicated by the first range information and sends the measurement results (for example, included in the first information) to the second node. The second node can receive the first configuration information from the first node. Based on the first time information and / or the first threshold information in the first configuration information, the second node can determine the cell that satisfies the predefined relationship within the time range indicated by the first time information. When the cell with the predefined relationship is determined, the second node can determine that an unnecessary handover has occurred to the terminal.

[0140] In some embodiments, the first configuration information includes first time information, for example, the first time information is used to indicate a period for the terminal to perform a measurement operation. The terminal measures one or more neighboring cells within the period indicated by the first time information and sends the obtained measurement results (for example, contained in the first information) to the second node. The second node can receive the first configuration information from the first node, and the second node determines, based on the first range information and / or the first threshold information, a cell that satisfies a predefined relationship within the period indicated by the first time information. When a cell with a predefined relationship is determined, the second node can determine that an unnecessary handover has occurred to the terminal.

[0141] In some embodiments, the report includes at least one of the following:

[0142] Target cell identifier for unnecessary handover;

[0143] Source cell identifier for unnecessary handover;

[0144] Handover indication information, used to indicate that the terminal will be handed over to the first cell within a first duration;

[0145] The switching type of unnecessary switching;

[0146] Indication of unnecessary switching issues:

[0147] An identifier of at least one cell, wherein a relationship between the first information corresponding to the at least one cell and the second threshold information satisfies a predefined relationship.

[0148] In some embodiments, when the report is used to report the target cell identity of the unnecessary handover, the report may indicate whether the target cell of the unnecessary handover is an LTM candidate cell. For example, the target cell of the unnecessary handover may include the cell where the terminal is located after handing over to the second node.

[0149] In some embodiments, when reporting the source cell identity for reporting unnecessary handover, the report may indicate whether the source cell of the unnecessary handover is an LTM candidate cell. For example, the source cell of the unnecessary handover may include the cell where the terminal is located when it is under the first node.

[0150] In some embodiments, the second node may predict that the terminal will switch to the first cell within a first duration, and indicate to the first node through switching indication information that the terminal will switch to the first cell within the first duration.

[0151] In some embodiments, the report may indicate to the first node the handover type of unnecessary handover (Unnecessary HandOver), and the handover type may include at least one of the following: normal handover, conditional handover (CHO), dual active protocol stack (DAPS) handover, and LTM handover.

[0152] In some embodiments, the report may indicate to the first node an unnecessary handover problem. For example, the unnecessary handover problem may include information about the terminal that experienced the unnecessary handover, such as whether the terminal that experienced the unnecessary handover is configured with an LTM configuration. Of course, the unnecessary handover problem is not limited to information about the terminal that experienced the unnecessary handover, and may also include other information, such as the reason for the unnecessary handover, the time when the unnecessary handover occurred, etc.

[0153] In some embodiments, the first information sent by the terminal to the second node may include n first information, where the multiple information corresponds to measurement results obtained by the terminal measuring n cells according to the first configuration information, and each first information corresponds to the measurement result of the terminal measuring one cell.

[0154] The second node can compare each first information with the second threshold information respectively to determine whether the relationship between the first information and the second threshold information satisfies a predefined relationship, and then determine at least one cell corresponding to the first information whose relationship with the second threshold information satisfies the predefined relationship, and carry the identifier of the at least one cell in the report and send it to the first node.

[0155] In some embodiments, when a terminal switches from a first node to a second node and then switches to a first cell, for example, if the terminal switches to the first cell within a short time frame (for example, within a first duration threshold from the start of the handover to the second node), the second node may not send a report to the first node indicating that an unnecessary handover has occurred to the terminal. For example, if the terminal switches to the first cell within the first duration threshold, the first information is not used by the second node to determine that an unnecessary handover has occurred to the terminal.

[0156] For example, the second node may identify whether the first cell belongs to the first cell set. If the first cell belongs to the first cell set, the second node may not send a report indicating that an unnecessary handover of the terminal has occurred to the first node; if the first cell does not belong to the first cell set, the second node may send a report indicating that an unnecessary handover of the terminal has occurred to the first node.

[0157] It should be noted that the first cell set may be agreed upon by a protocol or indicated by other network devices such as the core network and OAM, and the present disclosure does not limit this. The following takes the first cell set as a cell set consisting of cells of the first node as an example to exemplify the technical solution of the present disclosure.

[0158] If the first cell is the cell of the first node, the second node can determine that the terminal switches back to the first node in a shorter time and the situation of unnecessary switching is not serious, then it can be determined based on the first information that the terminal has undergone unnecessary switching, and thus a report indicating that the terminal has undergone unnecessary switching is not sent to the first node. Alternatively, even if the second node has determined based on the first information that the terminal has undergone unnecessary switching, it can also not send a report indicating that the terminal has undergone unnecessary switching to the first node.

[0159] It should be noted that, in some embodiments, if the first cell is the cell of the first node, the second node can still determine that the terminal has undergone unnecessary switching based on the first information, and send a report indicating that the terminal has undergone unnecessary switching to the first node.

[0160] If the first cell is a cell other than the first node, the second node may determine, based on the first information, that unnecessary handover has occurred to the terminal, and send a report indicating that unnecessary handover has occurred to the terminal to the first node.

[0161] In some embodiments, after switching from a first node to a second node, the terminal may perform a handover operation again, for example, switching to the first cell. The second node may identify whether the first cell belongs to the second cell set. If the first cell belongs to the second cell set, the second node may send a report to the first node indicating that an unnecessary handover has occurred for the terminal. If the first cell does not belong to the second cell set, the second node may not send a report to the first node indicating that an unnecessary handover has occurred for the terminal.

[0162] It should be noted that the first cell set may be agreed upon by a protocol or indicated by other network devices such as the core network and OAM, and the present disclosure does not limit this. The following uses the second cell set as a cell set consisting of LTM candidate cells in an LTM configuration as an example to exemplify the technical solution of the present disclosure.

[0163] For example, the second node determines that the first cell to which the terminal switches is the LTM candidate cell in the LTM configuration. Then it can be determined that the terminal first switches from the first node to the second node through a switching method other than LTM switching, and then switches to the LTM candidate cell in the LTM configuration. However, in this case, the terminal can switch directly from the first node to the LTM candidate cell (for example, the terminal is configured with an LTM configuration), so the operation of switching the terminal from the first node to the second node can be determined as a non-essential switch.

[0164] For example, other switching may include at least one of the following: normal switching, conditional switching, and dual-active protocol stack switching.

[0165] In some embodiments, the first node may store multiple switching thresholds, such as an LTM switching threshold for triggering an LTM switching and other switching thresholds for triggering other switching.

[0166] For example, the LTM switching threshold is relatively high and the other switching thresholds are relatively low. After the terminal performs a measurement operation according to the first configuration information and reports the measurement result to the first node, the first node determines that there is a measurement result that is larger than other switching thresholds, but the measurement result is less than the LTM switching threshold, which causes the first node to instruct the terminal to perform other switching operations, such as switching to the second node.

[0167] After the terminal switches to the second node, it switches to the LTM candidate cell in the LTM configuration. In this case, the second node can determine that the terminal's switching from the first node to the second node is unnecessary based on the first information reported by the terminal, and sends a report to the first node to indicate that the terminal has undergone unnecessary switching.

[0168] When the first node receives the report from the second node, it can determine that an unnecessary handover has occurred to the terminal, and can choose to adjust the LTM handover threshold and / or other handover thresholds, such as lowering the LTM handover threshold and / or raising other handover thresholds, so as to prevent the terminal under the first node from switching to the second node through other handover methods when it is able to switch to the LTM candidate cell.

[0169] Regarding LTM switching, in the LTM scenario, the network device can configure LTM configuration information for the terminal. The LTM configuration information includes LTM candidate cells (which can be one cell or a cell group consisting of multiple cells) and can also include relevant information used for communication in the candidate cells.

[0170] The terminal can perform LTM cell switching. For example, the network device can instruct the terminal to change the cell through layer 1 (for example, through downlink control information (DCI)) or layer 2 (for example, through a media access control layer control element (MAC CE)), for example, instruct the terminal to change the cell from candidate cell #1 to candidate cell #2.

[0171] Since the relevant information used for communication in the candidate cell is pre-configured to the terminal by the network device through LTM configuration, after the terminal switches to candidate cell #2, the network device does not need to configure the relevant information used for communication in candidate cell #2 for the terminal, which is conducive to the terminal completing cell switching and communication as soon as possible.

[0172] In some embodiments, the terminal may send capability information to the second node. For example, the capability information is used to indicate whether the terminal supports sending the first information to the second node according to the first configuration information.

[0173] For example, if the second node determines that the terminal supports sending the first message to the second node according to the first configuration information, the second node may configure resources for the terminal for sending the first message, and may also reserve inter-node resources for sending reports to the first node. However, if the second node determines that the terminal does not support sending the first message to the second node according to the first configuration information, the second node may not configure resources for the terminal for sending the first message, nor does it need to reserve inter-node resources for sending reports to the first node, so as to avoid wasting resources.

[0174] FIG2B is an interactive diagram illustrating another information sending method according to an embodiment of the present disclosure.

[0175] As shown in FIG2B , the terminal is under the first node, for example, has a communication connection with the first node, and / or resides in the cell of the first node. The terminal can perform a measurement operation according to the first configuration information and send the measurement result to the first node. In step S201B, the first node can instruct the terminal to switch from the first node to the second node based on the measurement result. For example, the first node can compare the measurement result obtained by the terminal from the cell measurement with the switching threshold and determine whether to instruct the terminal to switch cells based on the comparison result. For example, the condition for triggering the terminal to switch cells can include at least one of the following: the signal strength of the target cell is greater than the switching threshold, and the signal strength of the cell of the target node is greater than the switching threshold. If the first node determines that the trigger condition is met, it instructs the terminal to switch cells. For example, it can instruct the terminal to switch to the target cell or to the target node (for example, the target node can include the second node) through signaling, where the signaling can include, for example, RRC signaling or other signaling. Then, based on the signaling sent by the network device, the terminal can perform a handover operation, for example, switching to the target cell (for example, the cell of the second node) or target node (for example, the second node) indicated by the signaling.

[0176] Before the terminal switches from the first node to the second node, or after switching from the first node to the second node, in step S202B, the first node can send the first configuration information to the second node. For example, the first node can also indicate the identifier of the terminal to the second node so that the second node can determine that the first configuration information needs to be sent to the terminal.

[0177] For example, in response to a terminal switching from a first node to a second node, the first node sends first configuration information to the second node, for the second node to configure the terminal to perform relevant measurement records. The first configuration information includes at least one of the following: first measurement configuration information; first range information; first time information; first threshold information. In some examples, the first configuration information may be related to LTM, including at least one of the following: LTM-related coverage information, the LTM-related coverage information includes one or more LTM candidate cells; LTM-related measurement period, the LTM-related measurement period is used to evaluate the cell signal quality within a certain period of time; LTM-related signal quality threshold, including at least one of RSRP, RSRQ, and SINR, the LTM-related signal quality threshold is used to evaluate whether the cell meets the service conditions.

[0178] The second node may adjust the first configuration information (for example, adjust at least one of the first range information, the first time information, and the first threshold information), or may not adjust the first configuration information.

[0179] Further, in step S203B, the terminal switches from the first node to the second node.

[0180] After the terminal switches to the second node, in step S204B, the second node may send second configuration information to the terminal (for example, when the terminal switches to the first node, the first configuration information for performing the measurement operation in the first node has been deleted), wherein the second configuration information sent by the second node to the terminal, in some embodiments, the content of the second configuration information may be the same as or different from the content of the first configuration information, for example, the second configuration information may include information about the specific configuration, such as first range information, first time information, first threshold information, etc. In addition to including these information about the specific configuration, the first configuration information may also include a terminal identifier, which may be used to indicate the terminal to which the second node needs to send the second configuration information.

[0181] The second configuration information is used to instruct the terminal to perform corresponding measurements and report the measurement results to the second node. The second configuration information includes one or more of the first configuration information. For example: LTM-related coverage information, the LTM-related coverage information includes one or more LTM candidate cells; LTM-related measurement period; LTM-related signal quality threshold, including at least one of RSRP, RSRQ, SINR, etc. In response to receiving the LTM-related coverage information, the terminal measures one or more cells in the LTM-related coverage information and reports the measurement results. In response to receiving the LTM-related measurement period, the terminal performs measurements on one or more cells within the LTM-related measurement period and reports the measurement results to the network. The LTM-related signal quality threshold is used to evaluate whether a cell meets the service conditions. In response to receiving the LTM-related signal quality threshold, the terminal reports the cell measurement results that are higher / lower than the LTM-related signal quality threshold to the network.

[0182] The terminal may perform measurement according to the second configuration information, and in step S205B, send first information obtained by the measurement (eg, measurement result) to the second node.

[0183] In step S206B, the second node may determine whether an unnecessary handover has occurred to the terminal based on the first information, for example, determining whether the handover of the terminal from the first node to the second node is an unnecessary handover. If it is determined that an unnecessary handover has occurred to the terminal, a report may be sent to the first node in step S207B, the report being used to indicate that an unnecessary handover has occurred to the terminal.

[0184] In some examples, when a terminal switches from a first node to a second node, the terminal may send first information to the second node based on first configuration information, and the second node may determine whether an unnecessary handover has occurred to the terminal based on the first information. For example, if the second node determines that an unnecessary handover has occurred to the terminal based on the first information, it may send a first report to the first node. For example, if the second node determines that an unnecessary handover has not occurred to the terminal based on the first information, it is not necessary to send the first report to the first node. That is, the second node may determine whether to send the first report to the first node based on the first information.

[0185] For example, taking the case where the first information includes a measurement result obtained by the terminal according to the first configuration information (for example, the signal strength of the cell), the second node determines whether to send a first report to the first node based on the measurement result reported by the terminal, including: in response to the first cell being above / below a certain threshold within a certain period, sending first report information to the first node, the first report information indicating that an LTM-related non-essential handover has occurred. The cell may belong to the LTM measurement range, and the threshold / period may be configured by the first node or agreed upon by a protocol.

[0186] In some embodiments, the first node may send the first configuration information to the second node, and the second node may determine the second configuration information based on the first configuration information and send the second configuration information to the terminal.

[0187] For example, the second configuration information may be the same as the first configuration information. For example, the first configuration information includes information about specific configurations, such as at least one of the following: first measurement configuration information; first range information; first time information; and first threshold information. The second configuration information may also include information about these specific configurations.

[0188] For example, the second configuration information may be different from the first configuration information. For example, the first configuration information includes information related to specific configurations, such as at least one of the following: first measurement configuration information; first range information; first time information; and first threshold information. Furthermore, the first configuration information may further include terminal information, indicating to which terminals the second node should send the second configuration information. The second configuration information only includes information related to the specific configurations in the first configuration information.

[0189] For example, the second configuration information includes at least one of first range information, first time information, and first threshold information, wherein the first range information includes LTM-related coverage information, and the first time information includes an LTM-related measurement period. For example, the second configuration information includes LTM-related coverage information, the terminal measures one or more cells in the LTM-related configuration information, and sends the measurement report to the second node, and the second node determines the cells whose signal quality is higher / lower than the LTM-related signal quality threshold within the LTM measurement period based on the LTM-related measurement period and / or LTM-related signal quality threshold sent by the first node. In the embodiments of the present disclosure, the LTM-related signal quality threshold may also be referred to as a second threshold.

[0190] For example, the second configuration information includes at least one of first range information, first time information, and first threshold information, wherein the first range information includes LTM-related coverage information, and the first time information includes an LTM-related measurement period. The second configuration information includes an LTM-related measurement period, and the terminal measures one or more neighboring cells within the LTM-related measurement period and sends the measurement report to the second node. The second node determines, based on the LTM-related coverage information and / or the LTM-related signal quality threshold sent by the first node, the cell information belonging to the LTM-related coverage information that is higher / lower than the LTM-related signal quality threshold within the measurement period. In the embodiments of the present disclosure, the LTM-related signal quality threshold may also be referred to as a second threshold.

[0191] In some embodiments, the second node determines that the relationship between the first information and the second threshold information satisfies a predefined relationship, and the second node determines that a non-essential handover has occurred to the terminal. The content in the first configuration information (e.g., the first time information) can be used by the terminal / second node to perform measurement evaluation based on the configuration information to determine, based on the configuration information of the first node, whether there is a cell in the first node that can provide sufficient service conditions (e.g., the relationship between the first information obtained by measuring the cell and the second threshold information satisfies the predefined relationship). In the case of the existence of such a cell, the terminal is still switched from the first node to the second node, which is regarded as a non-essential handover.

[0192] The first report information may include at least one of the following: a non-essential handover target cell identifier, further indicating whether the target cell is an LTM candidate cell; a non-essential handover source cell identifier, further indicating whether the target cell is an LTM candidate cell; one or more first cell identifiers above / below the threshold; an indication that the terminal is switched back to the first cell within the certain period, for example, the first report may include a non-essential handover type indication (such as normal HO, CHO, DAPS, LTM), and for example, the first report may include an LTM-related handover problem indication (such as non-essential handover of a terminal configured with LTM).

[0193] In some embodiments, the terminal switches to the first cell within a first duration threshold, and the first information is not used by the second node to determine that an unnecessary handover of the terminal occurs.

[0194] For example, the first duration includes a certain period. If the terminal is re-switched to the first cell within the certain period, the second node does not need to send the first report information to the first node. The first cell may be a protocol agreement or a network configuration. For example, the first cell belongs to the LTM measurement range, for example, the first cell belongs to the cell of the first node.

[0195] The communication method involved in the embodiments of the present disclosure may include at least one of steps S201 and S202. For example, step S201 may be implemented as an independent embodiment, step S202 may be implemented as an independent embodiment, and steps S201+S202 may be implemented as independent embodiments, but are not limited thereto.

[0196] In some embodiments, steps S201 and S202 may be performed in an interchangeable order or simultaneously.

[0197] In some embodiments, step S201 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0198] In some embodiments, step S202 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0199] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2A and FIG. 2B .

[0200] In a first aspect, embodiments of the present disclosure provide a method for sending information. Figure 3 is a schematic flow chart illustrating a method for sending information according to an embodiment of the present disclosure. The method for sending information illustrated in this embodiment can be executed by a terminal.

[0201] As shown in FIG3 , the information sending method may include the following steps:

[0202] In step S301, switching from the first node to the second node;

[0203] In step S302, first information is sent to the second node according to the first configuration information, wherein the first information is used by the second node to determine whether unnecessary handover occurs to the terminal.

[0204] It should be noted that the embodiment shown in FIG. 3 can be implemented independently or in combination with at least one other embodiment in the present disclosure. The specific selection can be made as needed and the present disclosure does not limit it.

[0205] In some embodiments, the first configuration information is pre-stored by the terminal; or, the first configuration information is sent to the terminal by the first node; or, the first configuration information is sent to the terminal by the second node.

[0206] In some embodiments, the first configuration information is sent by the first node to the second node, and then sent by the second node to the terminal.

[0207] In some embodiments, the first configuration information includes at least one of the following: first measurement configuration information; first range information; first time information; and first threshold information.

[0208] In some embodiments, the relationship between the first information and the second threshold information satisfies a predefined relationship, and the first information is used by the second node to determine that unnecessary handover has occurred to the terminal.

[0209] In some embodiments, the terminal switches to the first cell within a first duration threshold, and the first information is not used by the second node to determine that an unnecessary handover of the terminal occurs.

[0210] In some embodiments, the terminal switches to a first cell, the first cell is an LTM candidate cell in an LTM configuration, and the first information is used by the second node to determine that an unnecessary handover occurs to the terminal.

[0211] In some embodiments, the method further includes: sending capability information to the second node, wherein the capability information is used to indicate whether the terminal supports sending the first information to the second node according to the first configuration information.

[0212] The optional implementation methods of the first aspect and the optional embodiments of the first aspect can be found in the optional implementation methods in the embodiments shown in Figures 2A and 2B, and other related parts in the embodiments involved in Figures 2A and 2B, which will not be repeated here.

[0213] In a second aspect, embodiments of the present disclosure provide an information receiving method. Figure 4 is a schematic flow chart illustrating an information receiving method according to an embodiment of the present disclosure. The information receiving method illustrated in this embodiment may be executed by a second node.

[0214] As shown in FIG4 , the information receiving method may include the following steps:

[0215] In step S401, first information sent according to first measurement configuration information after the terminal switches from the first node to the second node is received, wherein the first information is used by the second node to determine whether unnecessary switching occurs to the terminal.

[0216] It should be noted that the embodiment shown in FIG. 4 can be implemented independently or in combination with at least one other embodiment in the present disclosure. The specific selection can be made as needed and the present disclosure does not limit it.

[0217] In some embodiments, the first configuration information is pre-stored by the terminal; or, the first configuration information is sent to the terminal by the first node; or, the first configuration information is sent to the terminal by the second node.

[0218] In some embodiments, the first configuration information is sent by the first node to the second node, and then sent by the second node to the terminal.

[0219] In some embodiments, the first configuration information includes at least one of the following: first measurement configuration information; first range information; first time information; and first threshold information.

[0220] In some embodiments, the relationship between the first information and the second threshold information satisfies a predefined relationship, and the first information is used by the second node to determine that unnecessary handover has occurred to the terminal.

[0221] In some embodiments, the terminal switches to the first cell within a first duration threshold, and the first information is not used by the second node to determine that an unnecessary handover of the terminal occurs.

[0222] In some embodiments, the terminal switches to a first cell, the first cell is an LTM candidate cell in an LTM configuration, and the first information is used by the second node to determine that an unnecessary handover occurs to the terminal.

[0223] In some embodiments, the method further includes: in response to the first information being used by the second node to determine that an unnecessary handover has occurred to the terminal, sending a report to the first node, wherein the report is used to indicate that an unnecessary handover has occurred to the terminal.

[0224] In some embodiments, the report includes at least one of the following: a target cell identifier for non-essential switching; a source cell identifier for non-essential switching; switching indication information for indicating that the terminal will switch to the first cell within a first time period; a switching type for non-essential switching; an indication of a non-essential switching problem: an identifier of at least one cell, wherein the relationship between the first information corresponding to the at least one cell and the second threshold information satisfies a predefined relationship.

[0225] In some embodiments, the method further includes: sending capability information to the second node, wherein the capability information is used to indicate whether the terminal supports sending the first information to the second node according to the first configuration information.

[0226] The second aspect and the optional implementation methods of the optional embodiments of the second aspect can be found in the optional implementation methods in the embodiments shown in Figures 2A and 2B, and other related parts in the embodiments involved in Figures 2A and 2B, which will not be repeated here.

[0227] In some embodiments, in response to a terminal switching from a first node to a second node, the first node sends a first configuration related to LTM to the second node, so that the second node configures the terminal to perform related measurement logging.

[0228] The first configuration includes but is not limited to: an LTM measurement range, where the LTM measurement range includes one or more LTM candidate cells; an LTM measurement period; and an LTM measurement threshold.

[0229] In some embodiments, in response to switching to the second node, the terminal receives second configuration information sent by the second node and performs measurement logging based on the second configuration, where the second configuration information includes at least one of the following:

[0230] An LTM measurement range, where the LTM measurement range includes one or more LTM candidate cells, and the terminal performs measurements on the cells within the LTM measurement range and reports the measurement results to the second node;

[0231] An LTM measurement period, in which the terminal performs measurement on the LTM measurement range and sends a measurement report to the second node;

[0232] LTM measurement threshold, in response to a cell being above or below the LTM measurement threshold, reporting the cell related information to the second node.

[0233] In some embodiments, the second node sends a first report information to the first node based on the measurement results reported by the terminal in response to the first cell being above or below a certain threshold within a certain period, where the first report information indicates that an LTM-related unnecessary handover has occurred.

[0234] The first report information includes at least one of the following: a non-essential switching target cell identifier, further indicating whether the target cell is an LTM candidate cell; a non-essential switching source cell identifier, further indicating whether the target cell is an LTM candidate cell; an indication that the terminal is switched back to the first cell within the certain period; one or more first cell identifiers that are higher or lower than the threshold.

[0235] The cell may belong to the LTM measurement range, and the threshold / period may be configured by the first node or agreed upon by a protocol.

[0236] In addition, if the terminal is switched back to the first cell within the certain period, the second node does not need to send the first report information to the first node. The first cell may be a protocol agreement or a network configuration, for example, the cell belongs to the LTM measurement range.

[0237] It should be noted that:

[0238] The one or more LTM candidate cells mentioned above may include an LTM handover source cell or a cell for which the terminal receives LTM configuration for triggering LTM handover.

[0239] The above cell measurement results can be RRM measurement L1 measurement results, or L1 measurement results obtained based on LTM measurement configuration. They can be cell-level measurement results or measurement results for one or more beams. The one or more beams can be determined based on network configuration or UE autonomous selection, and the implementation method is not limited.

[0240] The above “one or more first cell identifiers that are higher or lower than the threshold” may be satisfied once, or N times, or always, and the implementation method is not limited.

[0241] Some possible implementations are described below:

[0242] 1. In some embodiments of the present disclosure, in response to a terminal handover from a first node to a second node, the second node receives first LTM-related configuration information sent by the first node, configures the terminal to perform measurement reporting based on the first LTM-related configuration information, and determines whether to send a first report to the first node based on the measurement results reported by the terminal. The first report indicates that an LTM-related unnecessary handover has occurred. The first report may also be sent to an OAM or other node.

[0243] 2. In combination with the above embodiment, in some embodiments, the first LTM-related configuration information includes at least one of the following:

[0244] a) LTM-related coverage information, wherein the LTM-related coverage information includes one or more LTM candidate cells;

[0245] b) LTM-related measurement period, which is used to evaluate cell signal quality within a certain period of time;

[0246] c) LTM-related signal quality threshold, including at least one of RSRP, RSRQ, and SINR. The LTM-related signal quality threshold is used to evaluate whether the cell meets the service conditions.

[0247] 3. In combination with the above embodiments, in some embodiments, configuring the terminal to perform measurement reporting includes the second node sending second configuration information to the terminal, for the terminal to perform corresponding measurements and report the measurement results to the second node, where the second configuration information includes, for example, one or more of the following in the first configuration information:

[0248] a) LTM-related coverage information, where the LTM-related coverage information includes one or more LTM candidate cells. In response to receiving the LTM-related coverage information, the terminal measures the one or more cells in the LTM-related coverage information and reports the measurement results.

[0249] b) an LTM-related measurement period, in response to receiving the LTM-related measurement period, the terminal performs measurements on one or more cells within the LTM-related measurement period and reports the measurement results to the network;

[0250] c) an LTM-related signal quality threshold, comprising at least one of RSRP, RSRQ, and SINR, the LTM-related signal quality threshold being used to assess whether a cell meets service conditions. In response to receiving the LTM-related signal quality threshold, the terminal reports cell measurement results above or below the LTM-related signal quality threshold to the network.

[0251] 4. In combination with the above embodiments, in some embodiments, the second node determining whether to send a first report to the first node based on the measurement results reported by the terminal includes sending a first report to the first node in response to a first cell having a value above / below a certain threshold within a certain period, the first report indicating that an LTM-related unnecessary handover has occurred. The cell may belong to the LTM measurement range, and the threshold / period may be configured by the first node or agreed upon by a protocol.

[0252] For example, in Example 1, the second configuration information includes LTM-related coverage information, the terminal measures one or more cells in the LTM-related configuration information, and sends the measurement report to the second node, and the second node determines the cells that are higher / lower than the LTM-related signal quality threshold within the LTM measurement period based on the LTM-related measurement period and / or LTM-related signal quality threshold sent by the first node.

[0253] For example, in Example 2: the second configuration information includes an LTM-related measurement period, the terminal measures one or more neighboring cells within the LTM-related measurement period, and sends the measurement report to the second node, and the second node determines the cell information belonging to the LTM-related coverage information that is higher / lower than the LTM-related signal quality threshold within the measurement period based on the LTM-related coverage information and / or the LTM-related signal quality threshold sent by the first node.

[0254] There are other possible implementation methods, which will not be repeated here. The content in the first configuration information is used by the terminal / second node to perform measurement and evaluation based on the configuration information to determine whether there is a cell in the first node that can provide sufficient service conditions based on the configuration information of the first node. In the case of the existence of such a cell, the terminal is still switched from the first node to the second node, which is regarded as a non-essential switch.

[0255] 5. In combination with the above embodiment, in some embodiments, the first report information includes at least one of the following:

[0256] a) non-essential handover target cell identifier, further indicating whether the target cell is an LTM candidate cell;

[0257] b) a non-essential handover source cell identifier, further indicating whether the target cell is an LTM candidate cell;

[0258] c) Indicates that the terminal is switched back to the first cell within the certain period.

[0259] For example, in embodiment 1, the first report includes a non-essential handover type indication (eg, normal HO, CHO, DAPS, LTM).

[0260] For example, in embodiment 2, the first report includes an indication of an LTM-related handover problem (eg, unnecessary handover of a terminal configured with LTM).

[0261] d) one or more first cell identities that are above or below the threshold.

[0262] 6. In conjunction with the above embodiment, in some embodiments, if the terminal is handed over to the first cell again within the certain period, the second node does not need to send the first report information to the first node. The first cell may be a protocol agreement or a network configuration, for example, the cell belongs to the LTM measurement range.

[0263] 7. In combination with the above embodiments, in some embodiments, the first node, the second node, and the terminal are nodes or terminals that support the LTM-related non-essential switching, and optionally send a capability indication to indicate whether they have the capability.

[0264] In some embodiments, unnecessary handover may refer to: a terminal switches from a first radio access technology (Radio Access Technology, RAT) to a second RAT, and within a period of time thereafter, the UE detects that the signal quality of the first RAT can still meet the requirements of the service received by the current user, then the UE's handover from the first RAT to the second RAT is considered to be an unnecessary handover (premature inter-system HO without connection failure).

[0265] In some embodiments, this may be caused by setting the serving cell threshold for triggering handover in the source system too high. If the serving cell threshold (e.g., NR cell) is set too high, and there are cells with good signal strength available in another system (e.g., EPS (Evolved Packet System)), handover to the other system may be triggered unnecessarily, resulting in inefficient network utilization. Using a lower threshold allows the UE to continue operating in the source system (e.g., 5GS (5G system)).

[0266] In some embodiments, to detect unnecessary HOs to another system, the gNB node may optionally include additional coverage and quality condition information during the handover preparation process when an inter-system HO occurs from a gNB to another system. Upon receiving this additional coverage and quality information, the RAN node in the other system may instruct the UE to continue measuring cells in the source system for a period of time while connected to the other system and send measurement reports to the node in the other system. Upon expiration of the time specified by the source system node, the RAN node in the other system may evaluate the received measurement reports based on the coverage / quality conditions received during the inter-system HO process and decide whether to send unnecessary inter-system HO reports to the gNB in ​​the source system.

[0267] In some embodiments, the target RAT sends a HO report to the source RAT only if any cell in the source system exceeds a radio coverage and / or quality threshold (radio thresholds RSRP, RSRQ, and / or SINR, and the measurement period are specified in the additional coverage and quality information in the handover preparation procedure) in all UE measurement reports collected during the measurement period. If an inter-system handover from EPS to 5GS is performed within the specified measurement period, the measurement period expires. In this case, the eNB in ​​the EPS may send a HO report. If no NR cell can be included, or if the specified time period is interrupted by an inter-system handover to a system other than 5GS, the HO report shall not be sent.

[0268] In some embodiments, after receiving the report, the RAN node in the source system (5GS) can decide whether / how to adjust its parameters (e.g., adjust the threshold for triggering inter-system HO).

[0269] In some embodiments, non-essential handovers can also occur between two intra-RAT base stations. However, the inter-RAT scenario is more interesting for at least one of the following reasons:

[0270] 1. Inter-RAT handover costs are higher: Inter-RAT handover (e.g., from LTE to NR or vice versa) is generally more complex than handover within the same RAT (e.g., LTE to LTE), requiring more signaling and potentially resulting in longer service interruptions.

[0271] 2. Inter-RAT coordination issues: Networks between different RATs may be managed by different network operators, or even by the same operator, their deployment and optimization strategies may differ. This may lead to inconsistent network performance at the edge and increase the risk of ping-pong effects.

[0272] 3. User experience impact: Inter-RAT handover may have a greater negative impact on user experience because it may involve different network performance characteristics (e.g., speed, latency, etc.) and changes in quality of service (QoS).

[0273] 4. Resource utilization efficiency: Frequent inter-RAT handovers may lead to inefficient utilization of radio resources, because each handover requires allocation of new radio resources and may waste already allocated resources during the handover process.

[0274] Therefore, to optimize network performance and user experience, operators and equipment manufacturers will pay special attention to the effects of unnecessary handovers in inter-RAT scenarios and take measures to monitor and reduce their occurrence. This may include improving handover algorithms, adjusting network coverage and capacity planning, and using more intelligent user equipment handover decision logic.

[0275] In some embodiments, a handover operation requires explicit RRC signaling triggering. For inter-gNB handover, the signaling procedure consists of at least the following basic components, which may include the following steps:

[0276] The source gNB initiates the handover and sends a handover request via the Xn interface;

[0277] The target gNB performs admission control and provides the new RRC configuration as part of the handover request confirmation;

[0278] The source gNB provides the RRC configuration to the UE by forwarding the RRCReconfiguration message received in the Handover Request Answer. The RRCReconfiguration message includes at least the cell ID and all information required to access the target cell so that the UE can access the target cell without reading system information. In some cases, information required for contention-based and non-contention-based random access may be included in the RRCReconfiguration message. The access information of the target cell may include beam-specific information.

[0279] The UE moves the RRC connection to the target gNB and responds with RRCReconfigurationComplete.

[0280] In some embodiments, regarding conditional handover (CHO), conditional handover (CHO) refers to a handover performed by the UE when one or more handover execution conditions are met. The UE starts evaluating the execution conditions after receiving the CHO configuration and stops evaluating the execution conditions after performing the handover (including legacy handover and CHO). CHO can be applied to the following criteria:

[0281] CHO configuration includes CHO candidate cell configuration and execution conditions;

[0282] An execution condition may contain one or two trigger conditions (CHO events A3 / A5):

[0283] a) CondEvent A3: Conditional reconfiguration candidate becomes amount of offset better than PCell / PSCell (conditional reconfiguration candidate becomes offset better than PCell / PCell);

[0284] b) CondEvent A5: PCell / PSCell becomes worse than absolute threshold1 AND Conditional reconfiguration candidate becomes better than another absolute threshold2 (PCell / PCell becomes worse than absolute threshold 1 and conditional reconfiguration candidate becomes better than another absolute threshold 2);

[0285] If the UE receives a HO (without CHO configuration) command before any CHO execution conditions are met, the UE performs the legacy HO procedure regardless of any previously received CHO configuration.

[0286] When performing CHO, that is, from the time the UE starts synchronizing with the target cell, the UE does not monitor the source cell.

[0287] In some embodiments, regarding LTM switching, in a 5G system, the network side may provide the terminal with multiple "candidate cells (or cell groups)". The network side may subsequently control the terminal to change among multiple "candidate cells (or cell groups)" (e.g., changing the working cell (or cell group) from "candidate cell (or cell group) -1" to "candidate cell (or cell group) -2") through L1 (e.g., DCI (Downlink Control Information)) or L2 (MAC CE (Control Element)) signaling. Among them, one serving cell (or cell group) may correspond to one or more "candidate cells (or cell groups)".

[0288] For example, the DU is supported to activate a candidate cell (or cell group) through MAC CE.

[0289] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codeword", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0290] In some embodiments, terms such as "moment", "time point", "time", and "time position" can be replaced with each other, and terms such as "duration", "period", "time window", "window", and "time" can be replaced with each other.

[0291] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0292] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0293] Corresponding to the aforementioned embodiments of the information sending method and the information receiving method, the present disclosure also provides embodiments of an information sending device and an information receiving device.

[0294] FIG5 is a schematic block diagram of an information sending device according to an embodiment of the present disclosure. For example, the information sending module may be provided in a terminal. As shown in FIG5 , the information sending device includes: a processing module 501 and a sending module 502.

[0295] In some embodiments, the processing module is configured to switch from a first node to a second node; the sending module is configured to send first information to the second node according to first configuration information, wherein the first information is used by the second node to determine whether unnecessary switching has occurred at the terminal.

[0296] In some embodiments, the first configuration information is pre-stored by the terminal; or, the first configuration information is sent to the terminal by the first node; or, the first configuration information is sent to the terminal by the second node.

[0297] In some embodiments, the first configuration information is sent by the first node to the second node, and then sent by the second node to the terminal.

[0298] In some embodiments, the first configuration information includes at least one of the following: first measurement configuration information; first range information; first time information; and first threshold information.

[0299] In some embodiments, the relationship between the first information and the second threshold information satisfies a predefined relationship, and the first information is used by the second node to determine that unnecessary handover has occurred to the terminal.

[0300] In some embodiments, the terminal switches to the first cell within a first duration threshold, and the first information is not used by the second node to determine that an unnecessary handover of the terminal occurs.

[0301] In some embodiments, the terminal switches to a first cell, the first cell is an LTM candidate cell in an LTM configuration, and the first information is used by the second node to determine that an unnecessary handover occurs to the terminal.

[0302] In some embodiments, the sending module is further configured to send capability information to the second node, wherein the capability information is used to indicate whether the terminal supports sending the first information to the second node according to the first configuration information.

[0303] FIG6 is a schematic block diagram of an information receiving device according to an embodiment of the present disclosure. For example, the information receiving device may be provided at the second node. As shown in FIG6 , the information receiving device includes: a receiving module 601.

[0304] In some embodiments, the receiving module is configured to receive first information sent by the terminal according to first measurement configuration information after the terminal switches from the first node to the second node, wherein the first information is used by the second node to determine whether unnecessary switching occurs to the terminal.

[0305] In some embodiments, the first configuration information is pre-stored by the terminal; or, the first configuration information is sent to the terminal by the first node; or, the first configuration information is sent to the terminal by the second node.

[0306] In some embodiments, the first configuration information is sent by the first node to the second node, and then sent by the second node to the terminal.

[0307] In some embodiments, the first configuration information includes at least one of the following: first measurement configuration information; first range information; first time information; and first threshold information.

[0308] In some embodiments, the relationship between the first information and the second threshold information satisfies a predefined relationship, and the first information is used by the second node to determine that unnecessary handover has occurred to the terminal.

[0309] In some embodiments, the terminal switches to the first cell within a first duration threshold, and the first information is not used by the second node to determine that an unnecessary handover of the terminal occurs.

[0310] In some embodiments, the terminal switches to a first cell, the first cell is an LTM candidate cell in an LTM configuration, and the first information is used by the second node to determine that an unnecessary handover occurs to the terminal.

[0311] In some embodiments, the apparatus further comprises: a sending module configured to send a report to the first node in response to the first information being used by the second node to determine that an unnecessary handover has occurred to the terminal, wherein the report is used to indicate that an unnecessary handover has occurred to the terminal.

[0312] In some embodiments, the report includes at least one of the following:

[0313] Target cell identifier for unnecessary handover;

[0314] Source cell identifier for unnecessary handover;

[0315] Handover indication information, used to indicate that the terminal will be handed over to the first cell within a first duration;

[0316] The switching type of unnecessary switching;

[0317] Indication of unnecessary switching issues:

[0318] The identifier of at least one cell, wherein the relationship between the first information and the second threshold information corresponding to the at least one cell satisfies a predefined relationship.

[0319] In some embodiments, the receiving module is further configured to send capability information to the second node, wherein the capability information is used to indicate whether the terminal supports sending the first information to the second node according to the first configuration information.

[0320] For the device embodiment, since it basically corresponds to the method embodiment, the relevant parts can be referred to the partial description of the method embodiment. The device embodiment described above is merely illustrative, wherein the modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical modules, that is, they may be located in one place, or they may be distributed on multiple network modules. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art can understand and implement it without paying any creative work.

[0321] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0322] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0323] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0324] Figure 7A is a schematic diagram of the structure of a communication device 7100 proposed in an embodiment of the present disclosure. Communication device 7100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 7100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0325] As shown in Figure 7A, the communication device 7100 includes one or more processors 7101. The processor 7101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process the communication protocol and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. Optionally, the communication device 7100 is used to perform any of the above methods. Optionally, one or more processors 7101 are used to call instructions to enable the communication device 7100 to perform any of the above methods.

[0326] In some embodiments, the communication device 7100 further includes one or more transceivers 7102. When the communication device 7100 includes one or more transceivers 7102, the transceiver 7102 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, steps S201 and S202, but not limited thereto), and the processor 7101 performs at least one of the other steps (for example, steps S201 and S202, but not limited thereto). In an optional embodiment, the transceiver may include a receiver and / or a transmitter, and the receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface may be interchangeable, the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be interchangeable, and the terms receiver, receiving unit, receiver, and receiving circuit may be interchangeable.

[0327] In some embodiments, the communication device 7100 further includes one or more memories 7103 for storing data. Alternatively, all or part of the memories 7103 may be located outside the communication device 7100. In alternative embodiments, the communication device 7100 may include one or more interface circuits 7104. Optionally, the interface circuits 7104 are connected to the memory 7102 and may be configured to receive data from the memory 7102 or other devices, or to send data to the memory 7102 or other devices. For example, the interface circuits 7104 may read data stored in the memory 7102 and send the data to the processor 7101.

[0328] The communication device 7100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 7100 described in the present disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by FIG. 7A. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0329] 7B is a schematic diagram of the structure of a chip 7200 proposed in an embodiment of the present disclosure. If the communication device 7100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 7200 shown in FIG7B , but the present disclosure is not limited thereto.

[0330] The chip 7200 includes one or more processors 7201. The chip 7200 is configured to execute any of the above methods.

[0331] In some embodiments, chip 7200 further includes one or more interface circuits 7202. Alternatively, terms such as interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 7200 further includes one or more memories 7203 for storing data. Alternatively, all or part of memory 7203 may be located external to chip 7200. Optionally, interface circuit 7202 is connected to memory 7203 and may be used to receive data from memory 7203 or other devices, or may be used to send data to memory 7203 or other devices. For example, interface circuit 7202 may read data stored in memory 7203 and send the data to processor 7201.

[0332] In some embodiments, the interface circuit 7202 performs at least one of the communication steps (e.g., steps S201 and S202, but not limited thereto) of the aforementioned method. For example, the interface circuit 7202 performing the communication steps (e.g., steps S201 and S202) of the aforementioned method means that the interface circuit 7202 performs data exchange between the processor 7201, chip 7200, memory 7203, or a transceiver device. In some embodiments, the processor 7201 performs at least one of the other steps (e.g., steps S201 and S202, but not limited thereto).

[0333] The modules and / or devices described in various embodiments, such as virtual devices, physical devices, and chips, can be arbitrarily combined or separated according to circumstances. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0334] The present disclosure also proposes a storage medium having instructions stored thereon. When the instructions are executed on the communication device 7100, the communication device 7100 executes any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a temporary storage medium.

[0335] The present disclosure also provides a program product, which, when executed by the communication device 7100, enables the communication device 7100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0336] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. A method for sending information, characterized in that: Executed by a terminal, the method includes: Switching from a first node to a second node; First information is sent to the second node according to the first configuration information, wherein the first information is used by the second node to determine whether unnecessary switching occurs to the terminal.

2. The method according to claim 1, characterized in that The first configuration information is pre-stored by the terminal; or, The first configuration information is sent by the first node to the terminal; or, The first configuration information is sent by the second node to the terminal.

3. The method according to claim 2, characterized in that The first configuration information is sent by the first node to the second node, and then sent by the second node to the terminal.

4. The method according to any one of claims 1 to 3, characterized in that The first configuration information includes at least one of the following: first measurement configuration information; First range information; First-time information; First threshold information.

5. The method according to any one of claims 1 to 4, characterized in that The relationship between the first information and the second threshold information satisfies a predefined relationship, and the first information is used by the second node to determine that unnecessary handover occurs to the terminal.

6. The method according to any one of claims 1 to 5, characterized in that The terminal switches to the first cell within the first duration threshold, and the first information is not used by the second node to determine that unnecessary switching of the terminal occurs.

7. The method according to any one of claims 1 to 5, characterized in that The terminal switches to a first cell, which is an LTM candidate cell in the LTM configuration. The first information is used by the second node to determine that an unnecessary handover occurs to the terminal.

8. The method according to any one of claims 1 to 7, characterized in that The method further comprises: Send capability information to the second node, where the capability information is used to indicate whether the terminal supports sending the first information to the second node according to the first configuration information.

9. A method for receiving information, characterized in that: Executed by the second node, the method includes: After receiving a terminal that switches from a first node to a second node, first information sent according to first measurement configuration information is sent, wherein the first information is used by the second node to determine whether an unnecessary switching occurs to the terminal.

10. The method according to claim 9, characterized in that The first configuration information is pre-stored by the terminal; or, The first configuration information is sent by the first node to the terminal; or, The first configuration information is sent by the second node to the terminal.

11. The method according to claim 10, characterized in that The first configuration information is sent by the first node to the second node, and then sent by the second node to the terminal.

12. The method according to any one of claims 9 to 11, characterized in that The first configuration information includes at least one of the following: first measurement configuration information; First range information; First-time information; First threshold information.

13. The method according to any one of claims 9 to 12, characterized in that The relationship between the first information and the second threshold information satisfies a predefined relationship, and the first information is used by the second node to determine that unnecessary handover occurs to the terminal.

14. The method according to any one of claims 9 to 13, characterized in that The terminal switches to the first cell within the first duration threshold, and the first information is not used by the second node to determine that unnecessary switching of the terminal occurs.

15. The method according to any one of claims 9 to 13, characterized in that The terminal switches to a first cell, which is an LTM candidate cell in the LTM configuration. The first information is used by the second node to determine that an unnecessary handover occurs to the terminal.

16. The method according to any one of claims 9 to 15, characterized in that The method further comprises: In response to the first information being used by the second node to determine that an unnecessary handover has occurred to the terminal, a report is sent to the first node, wherein the report is used to indicate that an unnecessary handover has occurred to the terminal.

17. The method according to claim 16, characterized in that The report includes at least one of the following: Target cell identifier for unnecessary handover; Source cell identifier for unnecessary handover; Handover indication information, used to indicate that the terminal will be handed over to the first cell within a first duration; The switching type of unnecessary switching; Indication of unnecessary switching issues: An identifier of at least one cell, wherein a relationship between the first information corresponding to the at least one cell and the second threshold information satisfies a predefined relationship.

18. The method according to any one of claims 9 to 17, characterized in that The method further comprises: Send capability information to the second node, where the capability information is used to indicate whether the terminal supports sending the first information to the second node according to the first configuration information.

19. An information sending device, characterized in that: The device comprises: a processing module configured to switch from the first node to the second node; The sending module is configured to send first information to the second node according to the first configuration information, wherein the first information is used by the second node to determine whether unnecessary switching occurs in the terminal.

20. An information receiving device, characterized in that: The device comprises: The receiving module is configured to receive first information sent by the terminal according to the first measurement configuration information after the terminal switches from the first node to the second node, wherein the first information is used by the second node to determine whether unnecessary switching occurs to the terminal.

21. A terminal, characterized in that: include: one or more processors; The terminal is used to execute the information sending method according to any one of claims 1 to 8.

22. A node, characterized in that: include: one or more processors; The node is used to execute the information receiving method according to any one of claims 9 to 18.

23. A communication system, characterized in that: The method comprises a terminal and a second node, wherein the terminal is configured to implement the information sending method according to any one of claims 1 to 8, and the second node is configured to implement the information receiving method according to any one of claims 9 to 18.

24. A storage medium storing instructions, characterized in that: When the instruction is executed on the communication device, the communication device executes the information sending method according to any one of claims 1 to 8, and / or the information receiving method according to any one of claims 9 to 18.

25. A program product, characterized in that When the program product is executed by a communication device, the communication device executes the information sending method according to any one of claims 1 to 8 and / or the information receiving method according to any one of claims 9 to 18.

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