Information sending method, information receiving method, terminal, network node and storage medium

Abstract

The present disclosure relates to the technical field of communications, and in particular to an information sending method, an information receiving method, a terminal, a network device and a storage medium. The information sending method comprises: sending a first indication to a network node in a non-connected state, wherein the first indication is used for the network node to determine whether to acquire first information. According to the present disclosure, a terminal can send the first indication to the network node in the non-connected state, wherein the first indication can be used for assisting the network node to determine whether to acquire the first information. The first indication can be sent to the network node when the terminal is in the non-connected state, and it is not necessary to send the first indication to the network node in a connected state, thereby ensuring that the network node can in a timely manner determine, on the basis of the first indication, whether to acquire the first information.

Description

Information sending and receiving method, terminal, network node 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, a terminal, a network node, a communication device, and a computer-readable storage medium. Background Art

[0002] In related technologies, a terminal may send instructions to a base station to assist the base station in performing certain operations. However, currently, the operation of sending instructions to a base station by a terminal is completed when the terminal is in a connected state. In this case, the timeliness of the instructions in assisting the base station in performing the operation is difficult to guarantee.

[0003] Summary of the Invention

[0004] The embodiments of the present disclosure propose an information sending method, an information receiving method, a terminal, a network node, a communication device, and a computer-readable storage medium to solve technical problems 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: sending a first indication to a network node in a non-connected state, wherein the first indication is used by the network node to determine whether to obtain first information.

[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 first node. The method includes: receiving a first indication sent by a terminal in a non-connected state, wherein the first indication is used by the first node and / or the second node to determine whether to perform report retrieval.

[0007] According to a third 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 a second indication sent by a first node, wherein the second indication is used by the second node to determine whether to perform terminal context relocation.

[0008] According to a fourth aspect of an embodiment of the present disclosure, a terminal is proposed, comprising: a sending module configured to send a first indication to a network node in a non-connected state, wherein the first indication is used by the network node to determine whether to obtain first information.

[0009] According to a fifth aspect of an embodiment of the present disclosure, a network node is proposed, comprising: a receiving module configured to receive a first indication sent by a terminal in a non-connected state, wherein the first indication is used by the first node and / or the second node to determine whether to perform report retrieval.

[0010] According to a sixth aspect of an embodiment of the present disclosure, a network node is proposed, comprising: a receiving module configured to receive a second indication sent by a first node, wherein the second indication is used by the second node to determine whether to perform terminal context relocation.

[0011] According to a seventh aspect of an embodiment of the present disclosure, a method for sending information is proposed, including: a terminal sending a first indication to a network node; and the network node determining whether to obtain first information based on the first indication.

[0012] According to an eighth aspect of an embodiment of the present disclosure, a terminal is proposed, comprising: one or more processors; the terminal is configured to execute the above-mentioned information sending method.

[0013] According to a ninth aspect of an embodiment of the present disclosure, a network node is proposed, comprising: one or more processors; the network node is configured to execute any one of the above-mentioned information receiving methods.

[0014] According to a tenth aspect of an embodiment of the present disclosure, a communication system is proposed, including a terminal and a network node, wherein the terminal is configured to implement the above-mentioned information sending method, and the network node is configured to implement any one of the above-mentioned information receiving methods.

[0015] According to the eleventh aspect of the 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 above-mentioned information sending method and / or any one of the above-mentioned information receiving methods.

[0016] According to an embodiment of the present disclosure, a terminal may send a first indication to a network node in a non-connected state. The first indication may be used to assist the network node in determining whether to obtain first information. Since the first indication can be sent to the network node when the terminal is in a non-connected state, rather than when the terminal is in a connected state, this helps ensure that the network node can promptly determine whether to obtain the first information based on the first indication. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0019] FIG2 is an interactive schematic diagram showing a method for sending information according to an embodiment of the present disclosure.

[0020] FIG3 is a schematic flowchart showing a method for sending information according to an embodiment of the present disclosure.

[0021] FIG4 is a schematic flow chart showing a method for receiving information according to an embodiment of the present disclosure.

[0022] FIG5 is a schematic flowchart showing a method for receiving information according to an embodiment of the present disclosure.

[0023] FIG6 is an interactive diagram illustrating a method for sending information according to an embodiment of the present disclosure.

[0024] FIG7 is an interactive diagram illustrating a method for sending information according to an embodiment of the present disclosure.

[0025] FIG8 is a schematic block diagram of a terminal according to an embodiment of the present disclosure.

[0026] FIG9 is a schematic block diagram of a network node according to an embodiment of the present disclosure.

[0027] FIG10 is a schematic block diagram of a network node according to an embodiment of the present disclosure.

[0028] FIG11A is a schematic structural diagram of a communication device proposed in an embodiment of the present disclosure.

[0029] FIG11B is a schematic diagram of the structure of a chip proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0030] The embodiments of the present disclosure provide information sending and receiving methods, terminals, network nodes, and storage media.

[0031] 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: sending a first indication to a network node in a non-connected state, wherein the first indication is used by the network node to determine whether to obtain first information.

[0032] In the above embodiment, the terminal may send a first indication to the network node in a non-connected state. The first indication may be used to assist the network node in determining whether to obtain the first information. Since the first indication can be sent to the network node when the terminal is in a non-connected state, rather than when the terminal is in a connected state, this helps ensure that the network node can promptly determine whether to obtain the first information based on the first indication.

[0033] In combination with some embodiments of the first aspect, in some embodiments, the method further includes: sending the first information to the network node.

[0034] In combination with some embodiments of the first aspect, in some embodiments, the first indication and / or the first information is sent via at least one of the following: a radio resource control message; or a small data transmission (SDT) message.

[0035] In combination with some embodiments of the first aspect, in some embodiments, the SDT message includes at least one of the following: an initial SDT message; or a non-initial SDT message.

[0036] In combination with some embodiments of the first aspect, in some embodiments, the SDT message is sent via at least one of the following: signaling radio bearer SRB1; SRB2; or a newly defined SRB.

[0037] In conjunction with some embodiments of the first aspect, in some embodiments, the first indication includes at least one of the following: a type of the first information; a type of a configuration for obtaining the first information; an indication of the availability of the first information; an indication of the availability of the configuration; validity indication information of the first information; validity indication information of the configuration; or storage space information of the terminal.

[0038] In combination with some embodiments of the first aspect, in some embodiments, sending the first indication to the network node in the non-connected state includes: the network node belongs to a predetermined network, and sending the first indication to the network node in the non-connected state.

[0039] In combination with some embodiments of the first aspect, in some embodiments, sending the first indication to the network node in the non-connected state includes: sending the first indication to the network node in an SDT process, wherein the terminal supports sending at least one of the following to the network node in the SDT process: the first indication; the first information.

[0040] In combination with some embodiments of the first aspect, in some embodiments, the method further includes: sending capability information to the network node, wherein the capability information is used to indicate that the terminal supports sending at least one of the following to the network node in the SDT process: a first indication; and first information.

[0041] In the second aspect, an embodiment of the present disclosure proposes an information receiving method, which is executed by a first node, and the method includes: receiving a first indication sent by a terminal in a non-connected state, wherein the first indication is used by the first node and / or the second node to determine whether to obtain the first information.

[0042] In the above embodiment, the network node may receive a first indication sent by the terminal in a non-connected state, and the first indication may be used to assist the network node in determining whether to obtain the first information. Since the first indication can be sent to the network node when the terminal is in a non-connected state, rather than when the terminal is in a connected state, this helps ensure that the network node can promptly determine whether to obtain the first information based on the first indication.

[0043] In combination with some embodiments of the second aspect, in some embodiments, the method further includes: determining to obtain first information, sending a request to the terminal to obtain the first information; and receiving the first information sent by the terminal.

[0044] In combination with some embodiments of the second aspect, in some embodiments, the first indication and / or the report is sent via at least one of the following: an RRC (Radio Resource Control) message; or an SDT message.

[0045] In combination with some embodiments of the second aspect, in some embodiments, the SDT message includes at least one of the following: an initial SDT message; or a non-initial SDT message.

[0046] In combination with some embodiments of the second aspect, in some embodiments, the SDT message is sent via at least one of the following: signaling radio bearer SRB1; SRB2; or a newly defined SRB.

[0047] In conjunction with some embodiments of the second aspect, in some embodiments, the first indication includes at least one of the following: a type of the first information; a type of a configuration for obtaining the first information; an indication of the availability of the first information; an indication of the availability of the configuration; validity indication information of the first information; validity indication information of the configuration; or storage space information of the terminal.

[0048] In combination with some embodiments of the second aspect, in some embodiments, the method further includes: sending a second indication to the second node, wherein the second indication is used by the second node to determine whether to perform terminal context relocation.

[0049] In combination with some embodiments of the second aspect, in some embodiments, the method further includes: in response to the second node performing terminal context relocation, sending the first information sent by the terminal to a third node.

[0050] In combination with some embodiments of the second aspect, in some embodiments, the method further includes: in response to the second node not performing terminal context relocation, sending the first information sent by the terminal to the second node, and the first information is sent by the second node to a third node.

[0051] In combination with some embodiments of the second aspect. In some embodiments, receiving a first indication sent by a terminal in a non-connected state includes: receiving at least one of the following sent by the terminal in an SDT process: a first indication; a first message, wherein the terminal supports sending at least one of the following to a first node in the SDT process: a first indication; a first message.

[0052] In combination with some embodiments of the second aspect, in some embodiments, the method further includes: receiving capability information sent by the terminal, wherein the capability information is used to indicate that the terminal supports sending at least one of the following to the first node in the SDT process: a first indication; and first information.

[0053] In combination with some embodiments of the second aspect, in some embodiments, the method further includes: the second node belongs to a predetermined network, and sending the first indication to the second node.

[0054] In a third aspect, an embodiment of the present disclosure proposes an information receiving method, which is executed by a second node, and the method includes: receiving a second indication sent by a first node, wherein the second indication is used by the second node to determine whether to perform terminal context relocation.

[0055] In combination with some embodiments of the third aspect, in some embodiments, the second node determines whether to perform terminal context relocation based on a protocol agreement or a policy of the second node.

[0056] In conjunction with some embodiments of the third aspect, in some embodiments, the method further includes: determining not to perform terminal context relocation, and receiving first information obtained by the first node from the terminal;

[0057] The first information is sent to a third node.

[0058] In a fourth aspect, an embodiment of the present disclosure proposes a terminal, comprising: a sending module, configured to send a first indication to a network node in a non-connected state, wherein the first indication is used by the network node to determine whether to obtain first information.

[0059] In a fifth aspect, an embodiment of the present disclosure proposes a network node, comprising: a receiving module, configured to receive a first indication sent by a terminal in a non-connected state, wherein the first indication is used by the first node and / or the second node to determine whether to obtain first information.

[0060] In a sixth aspect, an embodiment of the present disclosure proposes a network node, comprising: a receiving module configured to receive a second indication sent by a first node, wherein the second indication is used by the second node to determine whether to perform terminal context relocation.

[0061] In a seventh aspect, an embodiment of the present disclosure proposes an information sending method, comprising: a terminal sends a first indication to a network node; and the network node determines whether to obtain first information based on the first indication.

[0062] In an eighth aspect, an embodiment of the present disclosure proposes a terminal, comprising: one or more processors; 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.

[0063] In the ninth aspect, an embodiment of the present disclosure proposes a network node, comprising: one or more processors; the network node is used to execute the information receiving method described in any one of the second aspect, the third aspect, the optional embodiment of the second aspect, and the optional embodiment of the third aspect.

[0064] In the tenth aspect, an embodiment of the present disclosure proposes a communication system, comprising a terminal, a first node, 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, the first 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, and the second node is configured to implement the information receiving method described in any one of the third aspect and the optional embodiments of the third aspect.

[0065] In the eleventh 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 embodiment of the first aspect, and / or the information receiving method described in any one of the second aspect, the third aspect, the optional embodiment of the second aspect, and the optional embodiment of the third aspect.

[0066] In the twelfth 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 a method as described in any one of the first aspect, the second aspect, the third aspect, the optional embodiment of the first aspect, the optional embodiment of the second aspect, and the optional embodiment of the third aspect.

[0067] In the thirteenth aspect, an embodiment of the present disclosure proposes a computer program, which, when run on a computer, enables the computer to execute the method described in any one of the first aspect, the second aspect, the third aspect, the optional embodiment of the first aspect, the optional embodiment of the second aspect, and the optional embodiment of the third aspect.

[0068] It is understandable that the above-mentioned information sending device, information receiving device, communication device, communication system, storage medium, program product, and computer program are all used to perform the method proposed in the embodiment of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding method and will not be repeated here.

[0069] The embodiments of the present disclosure provide information sending and receiving methods, terminals, network nodes, and storage media. In some embodiments, the terms information sending method, information receiving method, information processing method, and communication method are interchangeable; the terms information sending device, information receiving device, information processing device, and communication device are interchangeable; and the terms information processing system and communication system are interchangeable.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] 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.

[0074] 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.

[0075] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0076] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0077] 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.

[0078] 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.

[0079] 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.

[0080] 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.

[0081] 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.

[0082] 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.

[0083] 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", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0084] 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.

[0085] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0086] 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.

[0087] 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.

[0088] 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.

[0089] 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.

[0090] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0091] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0092] 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.

[0093] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0094] As shown in FIG1 , a communication system 100 includes a terminal 101 and a network node 102 , wherein the network node includes at least one of the following: an access network device and a core network device.

[0095] 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.

[0096] 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.

[0097] 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).

[0098] 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.

[0099] 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.

[0100] 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.

[0101] 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.

[0102] 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).

[0103] In some embodiments, the terminal may perform small data transmission (SDT), wherein the SDT may be performed when the terminal is in a non-connected state, for example, the non-connected state may include an RRC inactive state or an RRC idle state.

[0104] For example, when a terminal in the RRC_INACTIVE state needs to transmit small uplink data and meets certain conditions, the terminal initiates a 4-step random access (4-step RACH) or a 2-step random access (2-step RACH) process according to the base station's configuration, or uses the type 1 physical uplink shared channel (PUSCH Type 1) configuration authorization to send an SDT message. After a small amount of signaling interaction between the terminal and the base station, small data transmission can be carried out in the RRC_INACTIVE state. During this process, the terminal remains in the RRC_INACTIVE state without transitioning to the connected (RRC_CONNECTED) state, achieving the goals of reducing transmission latency and signaling overhead.

[0105] For small data transmission initiated by a terminal in the RRC_INACTIVE state, the following two solutions can be used, depending on the channel resources used for the terminal's first uplink data transmission:

[0106] Solution 1: Uplink small data transmission based on RACH mechanism (hereinafter referred to as RA-SDT, RACH-Small Data Transmission). Solution 1 reuses and enhances the random access process. The terminal in RRC_INACTIVE state uses resources such as MsgA of 2-step RACH or Msg3 of 4-step RACH to initiate small data transmission.

[0107] Solution 2: Uplink small data transmission based on PUSCH configuration grant resources (hereinafter referred to as CG-SDT, Configured Grant-Small Data Transmission). Solution 2 reuses and enhances the PUSCH Type 1 configuration grant mechanism. Terminals in the RRC_INACTIVE state use the PUSCH channel Type 1 configuration grant resources to initiate small data transmission.

[0108] Before a terminal initiates an SDT small data transmission, the base station must configure resources for the terminal. For RA-SDT, resources are allocated to the terminal by the base station through system information. For CG-SDT, PUSCH Type 1 configuration grant resources are allocated to the terminal by the base station through RRC dedicated signaling.

[0109] When the conditions for initiating the SDT process are met, the terminal in the RRC_INACTIVE state initiates the SDT process and uses the resources configured by the base station to send the first SDT message, which includes RRC signaling (such as RRCResumeRequest message) and small uplink data sent by the terminal.

[0110] For example, the SDT process is triggered in response to all of the following conditions being met:

[0111] The higher layer requests RRC connection recovery;

[0112] SIB1 contains SDT common configuration;

[0113] Configured with SDT configuration;

[0114] All pending uplink data is mapped to the radio bearer configured for SDT;

[0115] For Reduced Capability (Redcap) terminals, when the Redcap-specific initial downlink bandwidth part (Bandwidth Part, BWP) contains a non-cell defining synchronization broadcast signal block (Cell Defining (SSB, Synchronization Signal / Physical Broadcast Channel Bloc, CD-SSB), it is configured with ncd-SSB-RedCapInitialBWP-SDT.

[0116] The lower layers indicate that the conditions for the initial SDT as described in TS 38.321 [3] are met.

[0117] Regarding the SDT process, after the terminal sends the first SDT message, it remains in the RRC_INACTIVE state. Under the control of the base station, the terminal and the base station can continue to transmit small downlink and uplink data.

[0118] Under normal circumstances, the base station sends RRC signaling (such as RRCRelease message) to the terminal to terminate the SDT process, and the terminal remains in the RRC_INACTIVE state; some abnormal situations will also terminate the SDT process.

[0119] For the RA-SDT and CG-SDT schemes, since the resources used for the initial data transmission are different, there are differences in the specific schemes, such as the configuration of SDT resources, the resource selection for transmitting the first SDT message (also called the initial SDT message), and the subsequent uplink and downlink data transmission methods between the terminal and the base station. The following is a detailed analysis.

[0120] RACH resources or PUSCH channel Type 1 configuration grant resources used for SDT can be configured on a regular UL or SUL (supplementary uplink) carrier.

[0121] For CG-SDT, when the terminal enters the RRC_INACTIVE state from the RRC_CONNECTED state, the base station configures PUSCH channel Type 1 configuration grant resources to the terminal through RRC signaling. Based on the reuse of the Type 1 configuration grant mechanism of 5G Release 15 / R16, for CG-SDT, the terminal needs to be configured with parameters such as the RSRP change threshold for time alignment verification, the SSB-RSRP (Reference Signal Receiving Power) threshold for beam selection, and a timer for maintaining time alignment.

[0122] For RA-SDT, the base station configures SDT transmission resources on the RACH through system information SIB1. The base station can configure the terminal to use 2-step RACH or 4-step RACH, or configure both 2-step RACH and 4-step RACH simultaneously. For 2-step RACH or 4-step RACH, the parameters that need to be configured in the system information include SSB selection-related parameters, power control-related parameters, and parameters related to the RACH preamble code group. In terms of PRACH resource configuration, the random access procedure used for RA-SDT and the random access procedure used for other purposes (such as handover) can use different ROs (RACH Occasions), or they can share the same RO. RA-SDT resources can only be configured on the initial BWP. In addition, RA-SDT only supports contention-based random access and does not support non-contention-based random access.

[0123] When a terminal in the RRC_INACTIVE state initiates an SDT process, it needs to select SDT resources according to the determination rules. The specific selection method is as follows:

[0124] Step 1: Select an uplink carrier. The SUL carrier is selected first, followed by a regular uplink carrier. If a SUL carrier is configured for the terminal and the RSRP measured by the terminal is below a threshold configured by the base station, the terminal selects the SUL carrier; otherwise, a regular uplink carrier is selected.

[0125] Step 2: Select CG-SDT or RA-SDT resources. If CG-SDT resources are configured on the selected uplink carrier, Type 1 configuration authorization resources are valid, and the RSRP of at least one of the SSBs associated with the CG-SDT resources is higher than the SSB-RSRP threshold for beam selection, the terminal initiates a CG-SDT process on the selected uplink carrier. Otherwise, if RA-SDT resources are configured on the selected uplink carrier, the terminal initiates a RA-SDT process on the selected uplink carrier.

[0126] During RA-SDT selection, the rules established when introducing 2-step RACH are reused to further select 2-step RA-SDT or 4-step RA-SDT. Specifically, when both 2-step RA-SDT and 4-step RA-SDT resources are configured on an uplink carrier, the terminal makes a selection based on an RSRP threshold configured by the base station. If the RSRP measured by the terminal exceeds the threshold, 2-step RA-SDT is selected; otherwise, 4-step RA-SDT is selected.

[0127] Initiating the SDT process using CG-SDT resources: Taking into account the design of 5G supporting multiple SSB beams within a cell, in order for the terminal to select an SSB beam with a better signal when initiating the CG-SDT process, an association is established between the CG-SDT resource and the SSB, and the CG-SDT resource is associated with a group of SSBs through RRC signaling configuration. The base station also configures an SSB-RSRP threshold for beam selection for the terminal. When initiating the CG-SDT process and subsequently using CG-SDT resources for uplink transmission, the terminal selects an SSB beam with a measured RSRP higher than the threshold, selects the CG-SDT resource associated with the SSB beam, and sends the first uplink message of the SDT on the PUSCH channel.

[0128] Initiating the SDT process using 2-step RA-SDT resources: The terminal uses the 2-step RACH process and sends the first uplink message of the SDT in MsgA. After initiating 2-step RA-SDT, the terminal can fall back from 2-step RA-SDT to 4-step RA-SDT when it receives a random access fallback indication in MsgB or when MsgA is repeated more than a certain number of times.

[0129] Initiate the SDT process using 4-step RA-SDT resources: The terminal uses the 4-step RACH process to send the first uplink message of SDT in Msg3.

[0130] The first uplink message of SDT contains not only RRC signaling (such as the RRCResumeRequest message), but also terminal application data and other content, depending on the data size that can be transmitted by the message. The role of RRC signaling is to provide the base station with necessary information such as the terminal's identity, so that the base station can configure the terminal's SDT process.

[0131] A terminal in the RRC_INACTIVE state must interact with the base station through signaling (including sending an RRCResumeRequest message to the base station, which then sends an RRCResume message to the terminal). Data transmission can only begin after the terminal and base station complete the necessary resource configuration and transition to the RRC_CONNECTED state. In contrast, with 5G SDT enhancements, the terminal can send uplink data to the base station in the first uplink message of SDT, reducing data transmission latency and air interface signaling overhead.

[0132] After the terminal initiates the SDT process, it is still in the RRC_INACTIVE state. The terminal and the base station can continue to transmit uplink and downlink data without switching to the RRC_CONNECTED state.

[0133] For CG-SDT, after the initial PUSCH transmission, the base station can schedule subsequent uplink transmissions using dynamic grants. The terminal can also perform uplink transmissions during subsequent PUSCH Type 1 grant resource opportunities. Downlink small data transmissions are dynamically allocated resources by the base station. When performing subsequent uplink transmissions using PUSCH Type 1 grant resource opportunities, the terminal selects the SSB beam and the CG-SDT resources associated with the SSB beam in the same manner as when initiating the SDT process for uplink data transmission.

[0134] For RA-SDT, after the initial PUSCH transmission (ie, Msg3 or MsgA) and the random access procedure are completed, the base station can use dynamic uplink grant and downlink allocation to schedule subsequent uplink and downlink data transmission.

[0135] For CG-SDT, when using Type 1 to configure authorized resources for the initial PUSCH transmission and subsequent uplink transmission, the terminal needs to determine whether the configured authorized resources are valid to ensure successful data transmission. For example, a mechanism based on a combination of a timer and an RSRP change threshold can be used for verification. A timer for maintaining time alignment is introduced in the MAC (Media Access Control) layer. When the terminal receives the configuration of the timer through RRC signaling from the base station, the timer is started. Before the timer expires, the terminal regards the uplink transmission of CG-SDT as being time-aligned with the base station and the CG resources are valid. When the terminal receives a timing advance (TA) adjustment instruction sent by the base station through the MAC layer, the timer is restarted. When the timer times out, the terminal considers that the CG resources are no longer valid and will release the resources. In addition, the terminal also performs time alignment verification based on RSRP, that is, compared with the last uplink transmission, if the change in the RSRP value measured by the terminal exceeds the RSRP change threshold set by the base station, the CG resources are no longer valid.

[0136] Once the SDT process is started, it will continue. The SDT transmission will stop when at least one of the following conditions is met:

[0137] SDT is successful. For example, the base station notifies the terminal to stop the SDT process through RRC signaling (such as an RRCRelease message), or the base station controls the terminal to switch to the RRC_IDLE or RRC_CONNECTED state through RRC signaling. During the SDT process, the base station can switch the terminal from the SDT process to a non-SDT process. For example, if the amount of data to be transmitted increases, the base station can switch the terminal to the RRC_CONNECTED state through RRC signaling, allowing the terminal to transmit data in the RRC_CONNECTED state.

[0138] SDT failure. For example, if a cell reselection occurs, the SDT failure detection timer expires, the MAC entity reaches the configured maximum PRACH preamble transmission threshold, the RLC entity reaches the configured maximum retransmission threshold, and the UE does not receive a response from the network after the initial PUSCH transmission while the SDT process is in progress on the CG, if the SDT specific time alignment timer expires, the SDT is considered to have failed.

[0139] It can be seen that the RRC_INACTIVE state terminal can remain in the RRC_INACTIVE state from the initiation of the SDT process to the termination of the SDT transmission, avoiding the repeated conversion of the terminal between the RRC_INACTIVE state and the RRC_CONNECTED state, and also reducing the air interface signaling overhead of intermittent small data transmission.

[0140] FIG2 is an interactive schematic diagram showing a method for sending information according to an embodiment of the present disclosure.

[0141] As shown in FIG2 , the information sending method may include the following steps:

[0142] Step S201: The terminal sends a first instruction to the first node.

[0143] In some embodiments, the first indication is used by the first node and / or the second node to determine whether to obtain the first information.

[0144] In some embodiments, the first node may include a receiving gNB, and the second node may include a last serving gNB.

[0145] In some embodiments, the terminal sends the first information to the first node in a non-connected state.

[0146] In some embodiments, the non-connected state includes at least one of the following: an idle state and an inactive state.

[0147] In some embodiments, the first information may include information determined based on the first operation. In some embodiments, the first operation includes at least one of the following: Self-Organizing Network (SON); Minimization Drive Test (MDT).

[0148] In some embodiments, minimization of drive tests includes at least one of the following: logged MDT and immediate MDT.

[0149] In some embodiments, the log MDT includes at least one of the following: signaling-based log MDT and management-based log MDT.

[0150] In some embodiments, the first indication and / or the first information is sent via at least one of the following: an RRC message; a small data transmission SDT message.

[0151] In some embodiments, the SDT message includes at least one of the following: an initial SDT message; a non-initial SDT message.

[0152] In some embodiments, the SDT message is sent via at least one of: SRB1; SRB2; or a newly defined SRB.

[0153] In some embodiments, the first indication includes at least one of the following: the type of the first information; the type of the configuration used to obtain the first information; an indication of the availability of the first information; an indication of the availability of the configuration; valid indication information of the first information; valid indication information of the configuration; and storage space information of the terminal.

[0154] In some embodiments, the type of the first information includes at least one of the following: access type, service type, and report type.

[0155] In some embodiments, the access type includes at least one of the following: New Radio, Long Term Evolution.

[0156] In some embodiments, the service type may be the service type associated with the first information recorded by the terminal, for example, including at least one of the following: audio service, video service, voice service, broadcast service, multicast service, and slice service.

[0157] In some embodiments, the report type includes at least one of the following: a SON report, an MDT report, a logged MDT report, an Immediate MDT report, a signaling-based logged MDT report, and a management-based logged MDT report.

[0158] In some embodiments, the type of configuration includes at least one of the following: SON configuration, MDT configuration, logged MDT configuration, Immediate MDT configuration, signaling-based logged MDT configuration, and management-based logged MDT configuration.

[0159] In some embodiments, the availability indication may include at least one of the following: available, unavailable.

[0160] In some embodiments, the validity indication information may include at least one of the following: validity time, validity area, duration of maintenance for the report, and duration of remaining maintenance for the report.

[0161] In some embodiments, the storage space information includes at least one of the following: the size of the space occupied by the stored reports, and the size of the space remaining for storing the reports.

[0162] In some embodiments, the terminal determines whether the network node belongs to a predetermined network.

[0163] In some embodiments, the terminal determines that the network node belongs to a predetermined network, and sends a first indication to the network node in a non-connected state.

[0164] In some embodiments, the predetermined network may be characterized by the following network identification.

[0165] In some embodiments, the predetermined network may include a public network, such as a public land mobile network (PLMN), and may also include a non-public network (NPN). The non-public network may further include at least one of the following: a stand-alone non-public network (SNPN) and a public network integrated non-public network (PNI-NPN).

[0166] For example, when the network nodes include the first node, the terminal only needs to determine whether the first node belongs to a predetermined network.

[0167] In some embodiments, the terminal does not need to perform PLMN check and directly reports the first indication. The first node determines whether the second node belongs to the PLMN stored in the terminal. If so, the first indication is sent to the second node; otherwise, it is not sent.

[0168] In some embodiments, the terminal supports sending at least one of the following to the network node in the SDT process: a first indication; first information, wherein the terminal can send the first indication to the network node in the SDT process.

[0169] In some embodiments, capability information is sent to the network node.

[0170] In some embodiments, the capability information is used to indicate that the terminal supports sending at least one of the following to the network node in the SDT process: a first indication; a first information.

[0171] Step S202: The first node sends a second instruction to the second node.

[0172] In some embodiments, the second indication is used by the second node to determine whether to perform terminal context relocation.

[0173] In some embodiments, the second node performs terminal context relocation, and the first node sends the first information sent by the terminal to the third node.

[0174] In some embodiments, the second node does not perform terminal context relocation, and the first node sends the first information sent by the terminal to the second node. The second node may further send the first information to a third node.

[0175] In some embodiments, whether the second node performs terminal context relocation may be determined by a protocol agreement or based on its own policy.

[0176] In some embodiments, the first node may determine whether the second node belongs to a predetermined network.

[0177] In some embodiments, the first node determines that the second node belongs to a predetermined network, and the first node sends the second indication to the second node.

[0178] In some embodiments, the first node receives a first indication sent by the terminal, and sends a second indication to the second node.

[0179] In some embodiments, the second indication may be the same as the first indication. For example, if the first indication includes the type of the first information and the availability indication of the first information, then the second indication may also include the type of the first information and the availability indication of the first information. The second indication may assist the second node in determining whether to perform terminal context relocation.

[0180] In some other embodiments, the second indication may be different from the first indication. For example, the first indication includes the type of the first information and an indication of the availability of the first information, while the second indication may include indication information for instructing the second node to perform terminal context relocation.

[0181] The communication method involved in the embodiment of the present disclosure may include at least one of steps S201 to S202. For example, step S201 may be implemented as an independent embodiment, and step S202 may be implemented as an independent embodiment, S201+S202, but is not limited thereto.

[0182] In some embodiments, steps S201 and S202 may be performed in an interchangeable order or simultaneously.

[0183] In some embodiments, step S201 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0184] In some embodiments, step S202 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0185] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 .

[0186] 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.

[0187] As shown in FIG3 , the information sending method may include the following steps:

[0188] In step S301, a first indication is sent to a network node (also referred to as a network device) in a non-connected state, wherein the first indication is used by the network node to determine whether to obtain first information.

[0189] 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.

[0190] In some embodiments, the non-connected state includes at least one of the following: an idle state and an inactive state.

[0191] According to an embodiment of the present disclosure, a terminal may send a first indication to a network node in a non-connected state. The first indication may be used to assist the network node in determining whether to obtain first information. Since the first indication can be sent to the network node when the terminal is in a non-connected state, rather than when the terminal is in a connected state, this helps ensure that the network node can promptly determine whether to obtain the first information based on the first indication.

[0192] It should be noted that the first indication is used to assist the network node in determining whether to obtain the first information, rather than to decide whether the network node obtains the first information. Correspondingly, the network node may consider the first indication or not when determining whether to obtain the first information.

[0193] In some embodiments, the first information may include information determined based on the first operation. Of course, this is not limited to this, and the first information may also include information stored in the terminal in other situations, or information configured in the terminal. The following embodiments mainly illustrate the technical solutions of the present disclosure by exemplifying the case where the first information includes information determined based on the first operation.

[0194] In some embodiments, the first operation includes at least one of the following:

[0195] Self-Organizing Network (SON);

[0196] Minimization Drive Test (MDT).

[0197] In some embodiments, the network node may include a first node that receives the first indication, and may also include a second node that has a communication interface with the first node. For example, the network node may include a base station, such as a gNB, the first node may include a receiving gNB, and the second node may include a last serving gNB.

[0198] In some embodiments, the MDT includes at least one of the following: logged MDT and immediate MDT.

[0199] In some embodiments, the logged MDT includes at least one of the following: signaling-based logged MDT and management-based logged MDT.

[0200] In some embodiments, the information sending method further includes: sending first information to a network node.

[0201] For example, when the network node determines that it needs to obtain the first information, the network node may send a request to the terminal, requesting the terminal to send the first information to the network node. After receiving the request message, the terminal may send the first information to the network node. Of course, in other embodiments, the terminal may also autonomously send the first information to the network node without receiving the request message.

[0202] In some embodiments, for example, the first information includes information determined by the terminal based on SON and / or MDT, the process of the base station sending a request message to the terminal and obtaining the first message can be called report retrieval, and the first information sent by the terminal to the network node can be called a report.

[0203] In some embodiments, the first indication and / or the first information is sent via at least one of the following:

[0204] Radio Resource Control (RRC) message;

[0205] Small data transmission SDT (Small data transmission) message.

[0206] For example, the terminal may send the first indication and / or the first information to the network node via an RRC message. In some embodiments, the RRC message includes an RRC resume request (RRCResumeRequest) message. Of course, the RRC message is not limited thereto and may also be other RRC messages that can be sent to the network node in a non-connected state.

[0207] For example, the terminal may send an SDT message carrying the first indication and / or the first information to the network node. The SDT message may be sent in a non-connected state. In some embodiments, the SDT message includes at least one of the following: an initial SDT message; or a non-initial SDT message. The SDT message may also be referred to as SDT signaling. In addition to carrying the first indication and / or the first information, the SDT message may also carry small uplink data that needs to be sent to the network node during the SDT process.

[0208] In some embodiments, the terminal can perform logged MDT in a non-connected state and store the first information obtained from the measurement record in a reserved memory. When the reserved memory is full, the terminal will stop recording and delete the stored first information after a period of time (which can be determined based on the configuration or protocol agreement, for example, 48 hours).

[0209] It can be seen that, for the first information obtained based on the logged MDT measurement record, if the terminal fails to report it to the network node in time within a period of time, the first information will be deleted, which leads to a waste of resources during the measurement process.

[0210] According to an embodiment of the present disclosure, after the terminal stores the first information obtained based on the logged MDT measurement record in the reserved memory, it is not necessary to wait until entering the connected state to send the first indication and / or the first information to the network node, but can send the first indication and / or the first information to the network node in the non-connected state.

[0211] For example, when the terminal sends the first indication to the network node in a non-connected state, it helps ensure that the network node promptly determines whether to obtain the first information based on the first indication, thereby helping ensure that the terminal promptly sends the first information to the network node. For example, when the terminal sends the first information to the network node in a non-connected state, it helps ensure that the network node promptly obtains the first information. It can be seen that both situations help ensure that the terminal promptly sends the first information to the network node, thereby avoiding the resource waste problem caused by deleting the first information.

[0212] In some embodiments, the SDT message is sent via at least one of the following: Signaling Radio Bearer (SRB) 1; SRB2; or a newly defined SRB.

[0213] In some embodiments, the terminal sends the first indication and / or first information to the network node via an SDT message, but the current SDT only supports the configuration of SRB2, that is, the SDT message can only be carried through SRB2, while the first indication and / or first information supports being carried through SRB1.

[0214] For example, when carrying the SDT message through SRB1, the SRB supported by the SDT configuration can be expanded. SDT not only supports the configuration of SRB2, but also supports the configuration of SRB1, so that SDT can be carried through SRB1, and SRB1 can also carry the first indication and / or first information in the SDT message.

[0215] For example, when the SDT message is carried by SRB2, since the SDT message can carry the first indication and / or the first information, the first indication and / or the first information can be extended to support the configuration of the SRB. The first indication and / or the first information not only supports the configuration of SRB1, but also supports the configuration of SRB2, so that the first indication and / or the first information can be carried in the SDT message carried by SRB2 and sent.

[0216] For example, a new SRB may be defined, for example, called SRBx, where x is a value other than 1 and 2. SRBx may be designed to carry both the SDT message and the first indication and / or the first information.

[0217] In some embodiments, the first indication and / or the first information is sent via SRB1 / SRBx, or the first indication and / or the first information is sent via SRB2 that is currently configured for the SDT process.

[0218] Specifically, the terminal carries the first indication and / or the first information in the uplink SDT signaling, and the SDT is configured to be sent via SRB1, or the first indication supports being sent via SRB2. The network node carries the report request message in the downlink SDT signaling, and the SDT is configured to be sent via SRB1, or the first indication and / or the first information request message supports being sent via SRB2.

[0219] In some embodiments, the first indication includes at least one of the following:

[0220] Type of first information;

[0221] a type of configuration for obtaining the first information;

[0222] an indication of availability of the first information;

[0223] Availability indication of the configuration;

[0224] Validity indication information of the first information;

[0225] Valid instructions for configuration;

[0226] The storage space information of the terminal. In some embodiments, the storage space information of the terminal can be used by the second node to determine whether to perform terminal context relocation; in some embodiments, the storage space information of the terminal can be used by the first node to configure an uplink authorization (UL granted) for the terminal for the terminal to transmit the first information.

[0227] For example, the type of the first information includes at least one of the following: access type, service type, and report type.

[0228] The access type includes at least one of the following: New Radio (NR) and Long Term Evolution (LTE).

[0229] The service type may be the service type associated with the first information recorded by the terminal, for example, including at least one of the following: audio service, video service, voice service, broadcast service, multicast service, and slice service.

[0230] The report type includes at least one of the following: SON report, MDT report, logged MDT report, Immediate MDT report, signaling-based logged MDT report, and management-based logged MDT report.

[0231] For example, the configuration type includes at least one of the following: SON configuration, MDT configuration, logged MDT configuration, Immediate MDT configuration, signaling-based logged MDT configuration, and management-based logged MDT configuration.

[0232] For example, the availability indication may include at least one of the following: available, unavailable.

[0233] For example, the validity indication information may include at least one of the following: validity time, validity area, duration of maintenance for the report, and duration of remaining maintenance for the report.

[0234] For example, the storage space information includes at least one of the following: the size of the space occupied by the stored reports, and the size of the remaining space for storing reports.

[0235] In some embodiments, based on the first indication, the network node may determine the urgency of obtaining the first information. When it is determined that obtaining the first information is relatively urgent, the network node may determine that the first information needs to be obtained. When it is determined that obtaining the first information is relatively unurgent, the network node may determine not to obtain the first information.

[0236] For example, the first indication includes storage space information. The network node determines based on the storage space information that the remaining space for storing the report is relatively small, and the terminal can delete the first information in a short time. Therefore, it can be determined that obtaining the first information is relatively urgent, and further it can be determined that the first information needs to be obtained.

[0237] For example, the first indication includes the type of the first information. The network node determines that the type of the first information is a logged MDT report based on signaling. For the logged MDT report based on signaling, the first information will be deleted within a period of time after the terminal storage space is full. Therefore, the network node can determine that obtaining the first information is relatively urgent, and further determine that the first information needs to be obtained.

[0238] In some embodiments, based on the first indication, the network node may determine the validity of obtaining the first information. When it is determined that the first information is valid, the network node may determine that the first information needs to be obtained. When it is determined that obtaining the first information is invalid, the network node may determine not to obtain the first information.

[0239] For example, the first indication includes an indication of the availability of the first information. If the network node determines that the first information is unavailable based on the first indication, then it can be determined that there is no need to obtain the first information. If the network node determines that the first information is available based on the first indication, then it can be determined to obtain the first information.

[0240] For example, the first indication includes valid area information of the first information. If the network node determines that the terminal is outside the valid area based on the first indication, it can be determined that the first information is unavailable, and then it can be determined that there is no need to obtain the first information. If the network node determines that the terminal is within the valid area based on the first indication, it can be determined that the first information is available, and then it can be determined that the first information is obtained.

[0241] In some embodiments, sending the first indication to the network node in the non-connected state includes: the network node belongs to a predetermined network, and sending the first indication to the network node in the non-connected state.

[0242] For example, before the terminal sends the first indication to the network node in a non-connected state, it can first determine whether the network node belongs to a predetermined network. If the network node belongs to the predetermined network, the terminal sends the first indication to the network node in a non-connected state. If the network node does not belong to the predetermined network, the terminal does not send the first indication to the network node in a non-connected state.

[0243] In some embodiments, the predetermined network can be represented by the following network identifier; in some embodiments, the predetermined network can include a public network, such as a public land mobile network (PLMN), and can also include a non-public network (NPN), and the non-public network can further include at least one of the following: a stand-alone non-public network (SNPN) and a public network integrated non-public network (Public Network Integrated NPN, PNI-NPN).

[0244] For example, when the network nodes include the first node, the terminal only needs to determine whether the first node belongs to a predetermined network.

[0245] For example, when the network node includes a first node and a second node, the terminal can only determine whether the first node belongs to a predetermined network. When the first node belongs to the predetermined network, the terminal sends a first indication to the network node in a non-connected state; or, the terminal can only determine whether the second node belongs to a predetermined network. When the second node belongs to the predetermined network, the terminal sends a first indication to the network node in a non-connected state; or, the terminal can determine whether the first node and the second node belong to a predetermined network. When both the first node and the second node belong to the predetermined network, the terminal sends a first indication to the network node in a non-connected state.

[0246] In some embodiments, the terminal may also send the first indication to the network node in a non-connected state without determining whether the network node belongs to a predetermined network.

[0247] In some embodiments, the terminal does not need to perform PLMN check and directly reports the first indication. The first node determines whether the second node belongs to the PLMN stored in the terminal. If so, the first indication is sent to the second node; otherwise, it is not sent.

[0248] In some embodiments, the terminal performs a PLMN check to determine whether the first node and / or the second node belongs to a PLMN stored in the terminal.

[0249] If both nodes belong to the stored PLMN, the terminal sends the first indication. Otherwise, the terminal does not send the first indication. Alternatively, if the first node belongs to the stored PLMN, the terminal sends the first indication to the first node. Further, the first node determines whether the second node belongs to the stored PLMN. If so, the terminal forwards the first indication. Otherwise, the terminal does not send the first indication.

[0250] In some embodiments, sending a first indication to a network node in a non-connected state includes: sending a first indication to the network node in an SDT process, wherein the terminal supports sending at least one of the following to the network node in the SDT process: a first indication; first information.

[0251] When the terminal has the ability to send a first indication and / or first information to the network node in the SDT process, the terminal can send the first indication and / or first information to the network node in the SDT process. Since the SDT process is performed in a non-connected state, the first indication and / or first information can be sent to the network node in the non-connected state.

[0252] In some embodiments, the method further includes: sending capability information to the network node, wherein the capability information is used to indicate that the terminal supports sending at least one of the following to the network node in the SDT process: a first indication; and first information.

[0253] The terminal can send capability information to the network node, and indicate to the network node through the capability information whether the terminal supports sending the first indication and / or first information to the network node in the SDT process. If the network node determines that the terminal supports sending the first indication and / or first information to the network node in the SDT process, it can receive the first indication and / or first information sent by the terminal in the SDT process.

[0254] In some embodiments, the first node may determine whether the terminal supports sending the first indication and / or first information to the network node in the SDT process in combination with the terminal's ability to support sending the first indication and / or first information and the terminal's ability to support SDT.

[0255] For example, a new capability may be defined to indicate whether the terminal supports sending the first indication and / or first information to the network node in the SDT process.

[0256] Alternatively, the first node may determine whether the terminal supports sending the first indication and / or first information to the network node in the SDT process based on the existing terminal's capability of supporting sending the first indication and / or first information and the terminal's capability of supporting SDT. For example, if the terminal supports sending the first indication and / or first information and supports SDT, it may be determined that the terminal supports sending the first indication and / or first information to the network node in the SDT process. If the terminal does not support sending the first indication and / or first information or does not support SDT, it may be determined that the terminal does not support sending the first indication and / or first information to the network node in the SDT process.

[0257] Second, embodiments of the present disclosure provide a method for receiving information. Figure 4 is a schematic flow chart illustrating a method for receiving information according to an embodiment of the present disclosure. The information receiving method illustrated in this embodiment can be executed by a first node, which can be capable of implementing the operations described in the following embodiments.

[0258] As shown in FIG4 , the information receiving method may include the following steps:

[0259] In step S401, a first indication sent by a terminal in a non-connected state is received, wherein the first indication is used by a first node and / or a second node to determine whether to obtain first information.

[0260] In some embodiments, the non-connected state includes at least one of the following: an idle state and an inactive state.

[0261] According to an embodiment of the present disclosure, a network node may receive a first indication sent by a terminal in a non-connected state. The first indication may be used to assist the network node in determining whether to obtain first information. Since the first indication may be sent to the network node when the terminal is in a non-connected state, rather than when the terminal is in a connected state, this helps ensure that the network node can promptly determine whether to obtain the first information based on the first indication.

[0262] It should be noted that the first indication is used to assist the network node in determining whether to obtain the first information, rather than to decide whether the network node obtains the first information. Correspondingly, the network node may consider the first indication or not when determining whether to obtain the first information.

[0263] In some embodiments, the first information may include information determined based on the first operation. Of course, this is not limited to this, and the first information may also include information stored in the terminal in other situations, or information configured in the terminal. The following embodiments mainly illustrate the technical solutions of the present disclosure by exemplifying the case where the first information includes information determined based on the first operation.

[0264] In some embodiments, the first operation includes at least one of the following:

[0265] Self-Organizing Network (SON);

[0266] Minimization Drive Test (MDT).

[0267] In some embodiments, the network node may include a first node that receives the first indication, and may also include a second node that has a communication interface with the first node. For example, the network node may include a base station, such as a gNB, the first node may include a receiving gNB, and the second node may include a last serving gNB.

[0268] In some embodiments, MDT includes at least one of the following: logged MDT, immediate MDT.

[0269] In some embodiments, the logged MDT includes at least one of the following: signaling-based logged MDT and management-based logged MDT.

[0270] In some embodiments, information receiving further includes: determining to obtain first information, sending a request to the terminal to obtain the first information; and receiving the first information sent by the terminal.

[0271] For example, when the network node determines that it needs to obtain the first information, the network node may send a request to the terminal, requesting the terminal to send the first information to the network node. After receiving the request message, the terminal may send the first information to the network node. Of course, in other embodiments, the terminal may also autonomously send the first information to the network node without receiving the request message.

[0272] In some embodiments, for example, the first information includes information determined by the terminal based on SON and / or MDT, the process of the base station sending a request message to the terminal and obtaining the first message can be called report retrieval, and the first information sent by the terminal to the network node can be called a report.

[0273] In some embodiments, the first indication and / or report is sent via at least one of: an RRC message; an SDT message.

[0274] For example, the terminal may send the first indication and / or the first information to the network node via an RRC message. In some embodiments, the RRC message includes an RRC resume request (RRCResumeRequest) message. Of course, the RRC message is not limited thereto and may also be other RRC messages that can be sent to the network node in a non-connected state.

[0275] For example, the terminal may send an SDT message carrying the first indication and / or the first information to the network node. The SDT message may be sent in a non-connected state. In some embodiments, the SDT message includes at least one of the following: an initial SDT message; or a non-initial SDT message. The SDT message may also be referred to as SDT signaling. In addition to carrying the first indication and / or the first information, the SDT message may also carry small uplink data that needs to be sent to the network node during the SDT process.

[0276] In some embodiments, the SDT message is sent via at least one of: SRB1; SRB2; a newly defined SRB.

[0277] In some embodiments, the terminal sends the first indication and / or first information to the network node via an SDT message, but the current SDT only supports the configuration of SRB2, that is, the SDT message can only be carried through SRB2, while the first indication and / or first information supports being carried through SRB1.

[0278] For example, when carrying the SDT message through SRB1, the SRB supported by the SDT configuration can be expanded. SDT not only supports the configuration of SRB2, but also supports the configuration of SRB1, so that SDT can be carried through SRB1, and SRB1 can also carry the first indication and / or first information in the SDT message.

[0279] For example, when the SDT message is carried by SRB2, since the SDT message can carry the first indication and / or the first information, the first indication and / or the first information can be extended to support the configuration of the SRB. The first indication and / or the first information not only supports the configuration of SRB1, but also supports the configuration of SRB2, so that the first indication and / or the first information can be carried in the SDT message carried by SRB2 and sent.

[0280] For example, a new SRB may be defined, for example, called SRBx, where x is a value other than 1 and 2. SRBx may be designed to carry both the SDT message and the first indication and / or the first information.

[0281]

[0282] In some embodiments, the first indication includes at least one of the following:

[0283] Type of first information;

[0284] a type of configuration for obtaining the first information;

[0285] an indication of availability of the first information;

[0286] Availability indication of the configuration;

[0287] Validity indication information of the first information;

[0288] Valid instructions for configuration;

[0289] Storage space information of the terminal.

[0290] For example, the type of the first information includes at least one of the following: a SON report, an MDT report, a logged MDT report, an Immediate MDT report, a signaling-based logged MDT report, and a management-based logged MDT report.

[0291] For example, the configuration type includes at least one of the following: SON configuration, MDT configuration, logged MDT configuration, Immediate MDT configuration, signaling-based logged MDT configuration, and management-based logged MDT configuration.

[0292] For example, the availability indication may include at least one of the following: available, unavailable.

[0293] For example, the validity indication information may include at least one of the following: validity time, validity area, duration of maintenance for the report, and duration of remaining maintenance for the report.

[0294] For example, the storage space information includes at least one of the following: the size of the space occupied by the stored reports, and the size of the remaining space for storing reports.

[0295] In some embodiments, based on the first indication, the network node may determine the urgency of obtaining the first information. When it is determined that obtaining the first information is relatively urgent, the network node may determine that the first information needs to be obtained. When it is determined that obtaining the first information is relatively unurgent, the network node may determine not to obtain the first information.

[0296] For example, the first indication includes storage space information. The network node determines based on the storage space information that the remaining space for storing the report is relatively small, and the terminal can delete the first information in a short time. Therefore, it can be determined that obtaining the first information is relatively urgent, and further it can be determined that the first information needs to be obtained.

[0297] For example, the first indication includes the type of the first information. The network node determines that the type of the first information is a logged MDT report based on signaling. For the logged MDT report based on signaling, the first information will be deleted within a period of time after the terminal storage space is full. Therefore, the network node can determine that obtaining the first information is relatively urgent, and further determine that the first information needs to be obtained.

[0298] In some embodiments, based on the first indication, the network node may determine the validity of obtaining the first information. When it is determined that the first information is valid, the network node may determine that the first information needs to be obtained. When it is determined that obtaining the first information is invalid, the network node may determine not to obtain the first information.

[0299] For example, the first indication includes an indication of the availability of the first information. If the network node determines that the first information is unavailable based on the first indication, then it can be determined that there is no need to obtain the first information. If the network node determines that the first information is available based on the first indication, then it can be determined to obtain the first information.

[0300] For example, the first indication includes a valid area of ​​the first information. If the network node determines that the terminal is outside the valid area based on the first indication, it can be determined that the first information is unavailable, and then it can be determined that there is no need to obtain the first information. If the network node determines that the terminal is within the valid area based on the first indication, it can be determined that the first information is available, and then it can be determined that the first information is obtained.

[0301] In some embodiments, the information receiving method further includes: sending a second indication to the second node, wherein the second indication is used by the second node to determine whether to perform terminal context relocation (UE context relocation).

[0302] When the terminal is in a disconnected state, although the first node can receive the first indication sent by the terminal, the terminal context can be stored in the second node. However, when the first node is not the same node as the second node, there is no terminal context in the first node, and the information from the terminal cannot be correctly parsed.

[0303] Therefore, in this embodiment, the first node sends a second indication to the second node, and the second indication can be used by the second node to determine whether to perform terminal context relocation. The second node performing terminal context relocation can include sending the terminal context to the first node.

[0304] In some embodiments, the first node receives a first indication sent by the terminal, and sends a second indication to the second node.

[0305] In some embodiments, the second indication may be the same as the first indication. For example, if the first indication includes the type of the first information and the indication of the availability of the first information, then the second indication may also include the type of the first information and the indication of the availability of the first information. The second indication may assist the second node in determining whether to perform terminal context relocation. In other embodiments, the second indication may be different from the first indication. For example, if the first indication includes the type of the first information and the indication of the availability of the first information, then the second indication may include indication information for instructing the second node to perform terminal context relocation.

[0306] In some embodiments, the second indication is the same as the first indication. The terminal sends the first indication to the first node (receiving gNB). The first indication is used to indicate that the terminal has available SON / MDT report or configuration. In response to receiving the first indication, the first node sends the first indication to the second node (last serving gNB), and the second node determines whether to perform terminal context relocation.

[0307] In some embodiments, the second indication is different from the first indication. The terminal sends the first indication to the first node (receiving gNB). The first indication is used to indicate that the terminal has an available SON / MDT report or configuration. In response to receiving the first indication, the first node determines whether to perform terminal context relocation and sends a second indication (for example, directly instructing the second node whether to perform terminal context relocation) to the second node. The second node determines whether to perform terminal context relocation based on the second indication.

[0308] In some embodiments, whether the second node performs terminal context relocation may be determined by a protocol agreement or based on its own policy.

[0309] For example, the protocol stipulates that the second node needs to perform terminal context relocation when receiving the second indication. Then, when the second node receives the second indication, it may perform terminal context relocation based on the protocol.

[0310] For example, after receiving the second indication, the second node may determine whether to perform terminal context relocation based on its own policy. For example, the self-policy may be: if the first information is larger than the data volume threshold, perform terminal context relocation; otherwise, do not perform terminal context relocation. For example, the self-policy may be: if the type of the first information has relatively high latency requirements, perform terminal context relocation; otherwise, do not perform terminal context relocation. For example, the self-policy may be: if the service priority of the first information is relatively high, perform terminal context relocation; otherwise, do not perform terminal context relocation. Of course, the self-policies of the second node are not limited to the above-mentioned ones.

[0311] In some embodiments, in response to receiving the second indication, the second node determines to perform terminal context relocation based on the second indication and in accordance with a protocol agreement.

[0312] In some embodiments, in response to receiving the second indication, the second node determines whether to perform terminal context relocation according to its own policy based on the second indication.

[0313] For example, whether to perform context relocation is determined according to the report size. If the report size is greater than a certain threshold, context relocation is performed; otherwise, context relocation is not performed.

[0314] For example, whether to perform context relocation is determined according to the service type or report type. For reports associated with high-priority or urgent services or services with high reporting delay requirements, context relocation is performed; otherwise, it is not performed.

[0315] The following uses several embodiments to exemplify whether to execute terminal context relocation or not.

[0316] In some embodiments, the information receiving method further includes: in response to the second node performing terminal context relocation, sending the first information sent by the terminal to the third node.

[0317] When the second node performs terminal context relocation, if it determines to perform report retrieval, the first information can be obtained from the terminal and successfully parsed. In some cases, if the target node to which the first information needs to be sent is a third node other than the first node and the second node, the first node can further forward the first information to the third node.

[0318] In some embodiments, the information receiving method further includes: in response to the second node not performing terminal context relocation, sending the first information sent by the terminal to the second node, and the first information is sent by the second node to the third node.

[0319] If the second node does not perform terminal context relocation, if it determines to perform report retrieval, it can obtain the first information from the terminal. Since it cannot parse the first information, it can send the first information to the second node, which will parse the first information. In some cases, if the target node to which the first information needs to be sent is a third node other than the first node and the second node, the second node can further forward the first information to the third node.

[0320] In some embodiments, if the terminal context relocation is performed, the first node determines whether to perform report retrieval and sends the report reported by the terminal to the target node (third node).

[0321] In some embodiments, if the terminal context relocation is not performed, the first node / second node determines whether to perform report retrieval. Further, the first node forwards the report reported by the terminal to the second node, which sends it to the target node (third node).

[0322] In some embodiments, receiving a first indication sent by a terminal in a non-connected state includes: receiving at least one of the following sent by the terminal in an SDT process: a first indication; first information, wherein the terminal supports sending at least one of the following to the first node in the SDT process: a first indication; first information.

[0323] When the terminal has the ability to send a first indication to the network node in the SDT process, the terminal can send the first indication and / or first information to the network node in the SDT process. Since the SDT process is performed in a non-connected state, the first indication and / or first information can be sent to the network node in the non-connected state.

[0324] In some embodiments, the information receiving method further includes: receiving capability information sent by the terminal, wherein the capability information is used to indicate that the terminal supports sending at least one of the following to the first node in the SDT process: a first indication; and first information.

[0325] The terminal can send capability information to the network node, and indicate to the network node through the capability information whether the terminal supports sending the first indication and / or first information to the network node in the SDT process. If the network node determines that the terminal supports sending the first indication and / or first information to the network node in the SDT process, it can receive the first indication and / or first information sent by the terminal in the SDT process.

[0326] In some embodiments, the information receiving method further includes: the second node belongs to a predetermined network, and sending a first indication to the second node.

[0327] In some embodiments, the first node may send a first instruction to the second node, and the second node may determine whether to obtain the first information. For example, when the second node determines to obtain the first information, it may provide feedback to the first node, instructing the first node to obtain the first information. For example, when the second node determines not to obtain the first information, it may provide feedback to the first node, instructing the first node not to obtain the first information. The manner in which the first node determines whether to obtain the first information is similar to the manner in which the first node determines whether to obtain the first information, and reference may be made to the previous embodiment, which will not be repeated here.

[0328] Before the first node sends the first indication to the second node, the first node may first determine whether the second node belongs to a predetermined network. Only when the second node belongs to the predetermined network will the first node send the first indication to the second node. When the second node does not belong to the predetermined network, the first node does not need to send the first indication to the second node.

[0329] Thirdly, embodiments of the present disclosure provide a method for receiving information. Figure 5 is a schematic flow chart illustrating a method for receiving information according to an embodiment of the present disclosure. The information receiving method illustrated in this embodiment can be executed by a second node, which can be capable of implementing the operations described in the following embodiments.

[0330] As shown in FIG5 , the information receiving method may include the following steps:

[0331] In step S501, a second indication sent by a first node is received, wherein the second indication is used by the second node to determine whether to perform terminal context relocation.

[0332] In some embodiments, when the terminal is in a non-connected state, although the first node can receive the first indication sent by the terminal, the terminal context can be stored in the second node. When the first node is not the same node as the second node, the first node does not have the terminal context, and the information from the terminal cannot be correctly parsed.

[0333] Therefore, in this embodiment, after receiving the first instruction, the first node may send a second instruction to the second node based on the first instruction, and the second instruction may be used by the second node to determine whether to perform terminal context relocation. The second node performing terminal context relocation may include sending the terminal context to the first node.

[0334] In some embodiments, the second indication may be the same as the first indication. For example, if the first indication includes the type of the first information and the indication of the availability of the first information, then the second indication may also include the type of the first information and the indication of the availability of the first information. The second indication may assist the second node in determining whether to perform terminal context relocation. In other embodiments, the second indication may be different from the first indication. For example, if the first indication includes the type of the first information and the indication of the availability of the first information, then the second indication may include indication information for instructing the second node to perform terminal context relocation.

[0335] In some embodiments, the second node determines whether to perform terminal context relocation based on a protocol agreement or a policy of the second node.

[0336] For example, the protocol stipulates that the second node needs to perform terminal context relocation when receiving the second indication. Then, when the second node receives the second indication, it can perform terminal context relocation based on the protocol.

[0337] For example, after receiving the second indication, the second node may determine whether to perform terminal context relocation based on its own policy. For example, the self-policy may be: if the first information is larger than the data volume threshold, perform terminal context relocation; otherwise, do not perform terminal context relocation. For example, the self-policy may be: if the type of the first information has relatively high latency requirements, perform terminal context relocation; otherwise, do not perform terminal context relocation. For example, the self-policy may be: if the service priority of the first information is relatively high, perform terminal context relocation; otherwise, do not perform terminal context relocation. Of course, the self-policies of the second node are not limited to the above-mentioned ones.

[0338] In some embodiments, the information receiving method further includes: determining not to perform terminal context relocation, receiving first information obtained by the first node from the terminal; and sending the first information to a third node.

[0339] If the second node does not perform terminal context relocation, and the first node determines to perform report retrieval, it can obtain the first information from the terminal. Since it cannot parse the first information, it can send the first information to the second node, which will parse the first information. In some cases, if the target node to which the first information needs to be sent is a third node other than the first node and the second node, the second node can further forward the first information to the third node.

[0340] FIG6 is an interactive diagram illustrating a method for sending information according to an embodiment of the present disclosure.

[0341] Taking the example where the first node includes a receiving gNB and the second node includes a last serving gNB, the terminal may send a first indication to the first node in the SDT process.

[0342] As shown in Figure 6, the terminal in the non-connected state can perform an SDT process and send a first indication to the first node in the SDT process, wherein the SDT process may include the terminal sending an RRCResume message and an SDT message to the first node. For example, the first indication may be carried in the RRCResume message.

[0343] After the first node receives the first indication, if the first node and the second node are not the same node, the first node may determine that terminal context relocation is required and send a second indication, such as a terminal context retrieval request, to the second node, for the second node to perform terminal context relocation. For example, the terminal context retrieval request may carry the first indication and may also carry information other than the first indication, such as an SDT indication, auxiliary information, etc.

[0344] After receiving the second instruction, if the second node determines to perform terminal context relocation, it may send a terminal context retrieval response to the first node, where the response may include the terminal context.

[0345] After receiving the terminal context, the first node may determine to continue the SDT process. In some embodiments, the first node may also send an Xn-U address indication to the second node.

[0346] The first node may send a path switching request to an access mobility management function (AMF), and the AMF may feedback a path switching request confirmation to the first node.

[0347] In some embodiments, the first node may perform uplink non-access stratum transmissions, such as non-access stratum protocol data units (PDUs).

[0348] In some embodiments, the first node may send a report retrieval request to the terminal in a subsequent SDT process. The terminal may carry the report, and may also carry information such as the size of the remaining reports, to the first node in the SDT process, for example, through a subsequent SDT message (i.e., a non-initial SDT message). The first node may further send the information from the terminal to a Trace Collection Entity (TCE).

[0349] The first node may determine to terminate the SDT process and send a radio resource control release (RRCRelease) message to the terminal, where the RRCRelease message may carry a suspend configuration (Suspend Config). In addition, the first node may send a terminal context release message to the second node.

[0350] FIG7 is an interactive diagram illustrating a method for sending information according to an embodiment of the present disclosure.

[0351] Taking the example where the first node includes a receiving gNB and the second node includes a last serving gNB, the terminal may send a first indication to the first node in the SDT process.

[0352] As shown in Figure 7, the terminal in the non-connected state can perform an SDT process and send a first indication to the first node in the SDT process, wherein the SDT process may include the terminal sending an RRCResume message and an SDT message to the first node. For example, the first indication may be carried in the SDT message.

[0353] After the first node receives the first indication, if the first node and the second node are not the same node, the first node may determine that terminal context relocation is required and send a second indication, such as a terminal context retrieval request, to the second node, for the second node to perform terminal context relocation. For example, the terminal context retrieval request may carry the first indication and may also carry information other than the first indication, such as an SDT indication, auxiliary information, etc.

[0354] After receiving the second instruction, if the second node determines not to perform UE context relocation, it may retain the UE context and perform a partial UE context transfer to the first node.

[0355] After receiving the partial terminal context, the first node may send a partial terminal up / down transfer confirmation message to the second node.

[0356] Next, the first node may establish a small data transmission Radio Link Control (RLC) entity, and the second node may retain a Packet Data Convergence Protocol (PDCP) entity.

[0357] In some embodiments, the first node may indicate an RRC transfer to the second node. During this process, the first indication, such as the SDT message carrying the first indication, may be sent to the second node and may be further sent to the TCE.

[0358] In some embodiments, the first node may send a report retrieval request to the terminal in a subsequent SDT process. The terminal may, in the SDT process, carry the report, and may also carry information such as the size of the remaining reports, to the first node, for example, via a subsequent SDT message (i.e., a non-initial SDT message). The first node may further send the information from the terminal to the second node and to the TCE.

[0359] The first node may detect that the SDT process is finished, and then retrieve the terminal context confirmation (RETRIEVE UE CONTEXT CONFIRM) from the second node, thereby finishing the SDT process.

[0360] The second node may send a terminal context retrieval failure message to the first node, which may carry an RRCRelease message. The second node may send an RRCRelease message to the terminal, and the RRCRelease may carry a suspend configuration (Suspend Config).

[0361] 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.

[0362] In some embodiments, terms such as "uplink", "uplink", "physical uplink" can be interchangeable with each other, and terms such as "downlink", "downlink", "physical downlink" can be interchangeable with each other, and terms such as "side", "sidelink", "side communication", "sidelink communication", "direct connection", "direct link", "direct communication", "direct link communication" can be interchangeable with each other.

[0363] 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.

[0364] 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.

[0365] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0366] In some embodiments, the terms "certain", "preset", "preset", "set", "indicate", "a certain", "arbitrary", "first" and the like can be used interchangeably, and "certain A", "preset A", "set A", "indicate A", ...

[0367] It should be noted that for other contents involved in this embodiment, please refer to the description of the relevant contents in the previous embodiments, which will not be repeated here.

[0368] 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.

[0369] FIG8 is a schematic block diagram of a terminal according to an embodiment of the present disclosure. As shown in FIG8 , the terminal includes:

[0370] The sending module 801 is configured to send a first indication to a network node in a non-connected state, wherein the first indication is used by the network node to determine whether to obtain first information.

[0371] In some embodiments, the apparatus further includes: a sending module configured to send the first information to the network node.

[0372] In some embodiments, the first indication and / or the first information is sent via at least one of: an RRC message; an SDT message.

[0373] In some embodiments, the SDT message includes at least one of the following: an initial SDT message; a non-initial SDT message.

[0374] In some embodiments, the SDT message is sent via at least one of: SRB1; SRB2; or a newly defined SRB.

[0375] In some embodiments, the first indication includes at least one of the following: the type of the first information; the type of configuration used to obtain the first information; an indication of the availability of the first information; an indication of the availability of the configuration; valid indication information of the first information; valid indication information of the configuration; and storage space information of the terminal.

[0376] In some embodiments, the sending module is configured to send a first indication to the network node in a non-connected state when the network node belongs to a predetermined network.

[0377] In some embodiments, the sending module is configured to send a first indication to the network node in the SDT process, wherein the terminal supports sending at least one of the following to the network node in the SDT process: a first indication; and first information.

[0378] In some embodiments, the sending module is further configured to send capability information to the network node, wherein the capability information is used to indicate that the terminal supports sending at least one of the following to the network node in the SDT process: a first indication; a first information.

[0379] FIG9 is a schematic block diagram of a network node according to an embodiment of the present disclosure. As shown in FIG9 , the network node includes:

[0380] The receiving module 901 is configured to receive a first indication sent by a terminal in a non-connected state, wherein the first indication is used by the first node and / or the second node to determine whether to obtain first information.

[0381] In some embodiments, the apparatus further includes: a sending module configured to determine to obtain first information and send a request to obtain the first information to the terminal; and the receiving module is further configured to receive the first information sent by the terminal.

[0382] In some embodiments, the first indication and / or the report is sent via at least one of: an RRC message; an SDT message.

[0383] In some embodiments, the SDT message includes at least one of the following: an initial SDT message; a non-initial SDT message.

[0384] In some embodiments, the SDT message is sent via at least one of: SRB1; SRB2; or a newly defined SRB.

[0385] In some embodiments, the first indication includes at least one of the following: the type of the first information; the type of the configuration used to obtain the first information; an indication of the availability of the first information; an indication of the availability of the configuration; valid indication information of the first information; valid indication information of the configuration; and storage space information of the terminal.

[0386] In some embodiments, the apparatus further includes: a sending module configured to send a second indication to the second node, wherein the second indication is used by the second node to determine whether to perform terminal context relocation.

[0387] In some embodiments, the apparatus further includes: a sending module configured to send the first information sent by the terminal to a third node in response to the second node performing terminal context relocation.

[0388] In some embodiments, the apparatus further comprises: a sending module configured to send the first information sent by the terminal to the second node in response to the second node not performing terminal context relocation, and the first information is sent by the second node to a third node.

[0389] In some embodiments, the receiving module is configured to receive at least one of the following sent by the terminal in the SDT process: a first indication; a first message, wherein the terminal supports sending at least one of the following to the first node in the SDT process: a first indication; a first message.

[0390] In some embodiments, the receiving module is configured to receive capability information sent by the terminal, wherein the capability information is used to indicate that the terminal supports sending at least one of the following to the first node in the SDT process: a first indication; a first information.

[0391] In some embodiments, the apparatus further includes: a sending module configured to send the first indication to the second node if the second node belongs to a predetermined network.

[0392] FIG10 is a schematic block diagram of a network node according to an embodiment of the present disclosure. As shown in FIG10 , the network node includes:

[0393] The receiving module 1001 is configured to receive a second indication sent by a first node, wherein the second indication is used by the second node to determine whether to perform terminal context relocation.

[0394] In some embodiments, the second node determines whether to perform terminal context relocation based on a protocol agreement or a policy of the second node.

[0395] In some embodiments, the sending module is further configured to determine not to perform terminal context relocation and receive first information obtained by the first node from the terminal; the device also includes: a sending module configured to send the first information to a third node.

[0396] Figure 11A is a schematic diagram of the structure of a communication device 11100 proposed in an embodiment of the present disclosure. Communication device 11100 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 11100 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.

[0397] As shown in Figure 11A, the communication device 11100 includes one or more processors 11101. The processor 11101 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 11100 is used to perform any of the above methods. Optionally, one or more processors 11101 are used to call instructions to enable the communication device 11100 to perform any of the above methods.

[0398] In some embodiments, the communication device 11100 further includes one or more transceivers 11102. When the communication device 11100 includes one or more transceivers 11102, the transceiver 11102 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 11101 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.

[0399] In some embodiments, the communication device 11100 further includes one or more memories 11103 for storing data. Alternatively, all or part of the memories 11103 may be located outside the communication device 11100. In alternative embodiments, the communication device 11100 may include one or more interface circuits 11104. Optionally, the interface circuits 11104 are connected to the memory 11102 and may be configured to receive data from the memory 11102 or other devices, or to send data to the memory 11102 or other devices. For example, the interface circuits 11104 may read data stored in the memory 11102 and send the data to the processor 11101.

[0400] The communication device 11100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 11100 described in the present disclosure is not limited thereto, and the structure of the communication device 11100 may not be limited to FIG. 11A. 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.

[0401] FIG11B is a schematic diagram of the structure of a chip 11200 according to an embodiment of the present disclosure. If the communication device 11100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 11200 shown in FIG11B , but the present disclosure is not limited thereto.

[0402] The chip 11200 includes one or more processors 11201. The chip 11200 is configured to execute any of the above methods.

[0403] In some embodiments, chip 11200 further includes one or more interface circuits 11202. Alternatively, the terms interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 11200 further includes one or more memories 11203 for storing data. Alternatively, all or part of memory 11203 may be located external to chip 11200. Optionally, interface circuit 11202 is connected to memory 11203. Interface circuit 11202 may be configured to receive data from memory 11203 or other devices, or to send data to memory 11203 or other devices. For example, interface circuit 11202 may read data stored in memory 11203 and send the data to processor 11201.

[0404] In some embodiments, interface circuit 11202 performs at least one of the communication steps (e.g., steps S201 and S202, but not limited thereto) of the aforementioned method. Interface circuit 11202 performing the communication steps (e.g., steps S201 and S202, but not limited thereto) of the aforementioned method, for example, means that interface circuit 11202 performs data exchange between processor 11201, chip 11200, memory 11203, or a transceiver device. In some embodiments, processor 11201 performs at least one of the other steps (e.g., steps S201 and S202, but not limited thereto).

[0405] 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.

[0406] The present disclosure also provides a storage medium having instructions stored thereon. When the instructions are executed on the communication device 11100, the communication device 11100 is caused to execute 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 transient storage medium.

[0407] The present disclosure also provides a program product, which, when executed by the communication device 11100, enables the communication device 11100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0408] 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: A first indication is sent to a network node in a non-connected state, wherein the first indication is used by the network node to determine whether to obtain first information.

2. The method according to claim 1, characterized in that The method further comprises: The first information is sent to the network node.

3. The method according to claim 2, characterized in that The first indication and / or the first information is sent by at least one of the following: Radio Resource Control RRC message; Small data transmission SDT message.

4. The method according to claim 3, characterized in that: The SDT message includes at least one of the following: Initial SDT message; Non-initial SDT message.

5. The method according to claim 3 or 4, characterized in that: The SDT message is sent via at least one of the following: Signaling radio bearer SRB1; SRB2; Newly defined SRB.

6. The method according to any one of claims 1 to 5, characterized in that The first indication includes at least one of the following: the type of the first information; a type of configuration for obtaining the first information; an indication of availability of the first information; an indication of the availability of said configuration; Validity indication information of the first information; Valid indication information of the configuration; Storage space information of the terminal.

7. The method according to any one of claims 1 to 6, characterized in that The sending a first indication to the network node in a non-connected state includes: The network node belongs to a predetermined network and sends a first indication to the network node in a non-connected state.

8. The method according to any one of claims 1 to 7, characterized in that The sending a first indication to the network node in a non-connected state includes: Sending a first indication to a network node in an SDT process, wherein the terminal supports sending at least one of the following to the network node in the SDT process: a first indication; and the first information.

9. The method according to any one of claims 1 to 8, characterized in that The method further comprises: Send capability information to the network node, wherein the capability information is used to indicate that the terminal supports sending at least one of the following to the network node in the SDT process: a first indication; and the first information.

10. A method for receiving information, characterized in that: Executed by the first node, the method includes: A first indication is sent by a receiving terminal in a non-connected state, wherein the first indication is used by the first node and / or the second node to determine whether to obtain first information.

11. The method according to claim 10, characterized in that The method further comprises: Determine to obtain first information, and send a request for obtaining the first information to the terminal; The first information sent by the terminal is received.

12. The method according to claim 11, characterized in that The first indication and / or the report is sent by at least one of the following: RRC message; SDT message.

13. The method according to claim 12, characterized in that The SDT message includes at least one of the following: Initial SDT message; Non-initial SDT message.

14. The method according to claim 12 or 13, characterized in that The SDT message is sent via at least one of the following: Signaling radio bearer SRB1; SRB2; Newly defined SRB.

15. The method according to any one of claims 10 to 14, characterized in that The first indication includes at least one of the following: the type of the first information; a type of configuration for obtaining the first information; an indication of availability of the first information; an indication of the availability of said configuration; Validity indication information of the first information; Valid indication information of the configuration; Storage space information of the terminal.

16. The method according to any one of claims 10 to 15, characterized in that The method further comprises: A second indication is sent to the second node, wherein the second indication is used by the second node to determine whether to perform terminal context relocation.

17. The method according to claim 16, characterized in that The method further comprises: In response to the second node performing terminal context relocation, the first information sent by the terminal is sent to a third node.

18. The method according to claim 16, characterized in that The method further comprises: In response to the second node not performing terminal context relocation, the first information sent by the terminal is sent to the second node, and the first information is sent by the second node to a third node.

19. The method according to any one of claims 10 to 18, characterized in that The receiving terminal sends a first indication in a non-connected state, including: Receive at least one of the following sent by the terminal in the SDT process: a first indication and / or a first information, wherein the terminal supports sending at least one of the following to the first node in the SDT process: a first indication; a first information.

20. The method according to any one of claims 10 to 19, characterized in that The method further comprises: Receive capability information sent by the terminal, wherein the capability information is used to indicate that the terminal supports sending at least one of the following to the first node in the SDT process: a first indication; a first information.

21. The method according to any one of claims 10 to 20, characterized in that The method further comprises: The second node belongs to a predetermined network, and the first indication is sent to the second node.

22. A method for receiving information, characterized in that: Executed by the second node, the method includes: A second indication sent by the first node is received, wherein the second indication is used by the second node to determine whether to perform terminal context relocation.

23. The method according to claim 22, characterized in that The second node determines whether to perform terminal context relocation based on a protocol agreement or a policy of the second node.

24. The method according to claim 22 or 23, characterized in that The method further comprises: Determine not to perform terminal context relocation, and receive first information obtained by the first node from the terminal; The first information is sent to a third node.

25. A terminal, characterized in that: include: The sending module is configured to send a first indication to a network node in a non-connected state, wherein the first indication is used by the network node to determine whether to obtain first information.

26. A network node, characterized in that: include: The receiving module is configured to receive a first indication sent by the terminal in a non-connected state, wherein the first indication is used by the first node and / or the second node to determine whether to perform report retrieval.

27. A network node, characterized in that: include: The receiving module is configured to receive a second indication sent by the first node, wherein the second indication is used by the second node to determine whether to perform terminal context relocation.

28. A method for sending information, characterized in that: include: The terminal sends a first indication to the network node; The network node determines whether to obtain the first information according to the first indication.

29. 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 9.

30. A network node, characterized in that: include: one or more processors; The network node is used to execute the information receiving method according to any one of claims 10 to 24.

31. A communication system, characterized in that: It includes a terminal, a first node and a second node, wherein the terminal is configured to implement the information sending method described in any one of claims 1 to 9, the first node is configured to implement the information receiving method described in any one of claims 10 to 21, and the second node is configured to implement the information receiving method described in any one of claims 22 to 24.

32. 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 9, and / or the information receiving method according to any one of claims 10 to 24.

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