Node in wireless communication system and method performed by same

Abstract

The present disclosure provides a node in a wireless communication system and a method performed by the same. A method performed by a second node in a wireless communication system comprises: receiving first information from a first node, the first information comprising: a first identification associated with a session or service for an environmental Internet of Things and / or related information of a third node associated with a session or service for the environmental Internet of Things; and sending second information to a third node, the second information comprising at least one of the following: the first identifier, related information of the third node associated with a session or service for the environmental Internet of Things, and a first numerical value for random access.

Description

Technical Field

[0001] The present disclosure relates to the technical field of wireless communications, and more particularly, to a node in a wireless communication system and a method executed therein. Background Art

[0002] To meet the increased demand for wireless data communication services since the deployment of 4G communication systems, efforts have been made to develop improved 5G or quasi-5G communication systems. Therefore, 5G or quasi-5G communication systems are also referred to as "beyond 4G networks" or "post-LTE systems."

[0003] Wireless communication is one of the most successful innovations in modern history. The number of wireless communication service subscribers recently surpassed 5 billion and continues to grow rapidly. Demand for wireless data services is rapidly increasing due to the growing popularity of smartphones and other mobile data devices (e.g., tablets, laptops, netbooks, e-book readers, and machine-type devices) among consumers and businesses. Improving radio interface efficiency and coverage is crucial to meeting this rapid growth and supporting new applications and deployments.

[0004] With the gradual maturity of 5G commercial networks (NR: New Radio access networks), research and standardization of Ambient IoT (A-IoT) technologies have begun. Summary of the Invention

[0005] An embodiment of the present disclosure provides a method performed by a second node in a wireless communication system, comprising: receiving first information from a first node, wherein the first information includes: a first identifier associated with a session or service for an environmental Internet of Things and / or relevant information of a third node associated with the session or service for the environmental Internet of Things; and sending second information to a third node, wherein the second information includes at least one of the following: the first identifier, relevant information of the third node associated with the session or service for the environmental Internet of Things, and a first value for random access.

[0006] According to an embodiment of the present disclosure, the first information further includes at least one of the following: a reason for triggering the sending of the first information; and area information associated with a session or service for the environmental Internet of Things.

[0007] According to an embodiment of the present disclosure, the second information also includes at least one of the following: a reason for triggering the sending of the second information; information related to a third frequency domain resource used for communication between the third node and the second node; and information related to a preamble code used for random access.

[0008] According to an embodiment of the present disclosure, the method further includes: sending fifth information to the third node, wherein the fifth information includes at least one of the following: information related to adjustment of the first value and the first identifier.

[0009] According to an embodiment of the present disclosure, the method also includes: after sending the second information to the third node, performing at least one of the following operations: sending third information to the third node, wherein the third information includes the first identifier, and wherein the third information is used by the third node to determine the time to send the preamble code.

[0010] According to an embodiment of the present disclosure, the method also includes: receiving fourth information from the third node, wherein the fourth information includes at least one of the following: a device identifier of the third node, a subscription hidden identifier of the third node, a permanent device identifier of the third node, and information indicating that the third node has a measurement report related to an environmental Internet of Things device that can be reported.

[0011] According to an embodiment of the present disclosure, the method also includes: receiving sixth information from the first node, wherein the sixth information includes: information for non-access stratum NAS, and information for instructing the second node to configure resources for the third node; and sending seventh information to the third node, wherein the seventh information includes: the information for NAS, and first time domain resource-related information and / or first frequency domain resource-related information used for communication between the third node and the second node.

[0012] According to an embodiment of the present disclosure, the method also includes: sending eighth information to the third node, wherein the eighth information includes at least one of the following: the first identifier, information for requesting application layer-related data and / or measurements of the third node, information related to second time domain resources for communication between the third node and the second node, and information related to second frequency domain resources for communication between the third node and the second node.

[0013] An embodiment of the present disclosure provides a method performed by a third node in a wireless communication system, comprising: receiving second information from a second node, wherein the second information includes at least one of the following: a first identifier associated with a session or service for the environmental Internet of Things, relevant information of a third node associated with the session or service for the environmental Internet of Things, and a first value for random access; generating a second value based on the first value; and performing random access based on the second value.

[0014] According to an embodiment of the present disclosure, the second information also includes at least one of the following: a reason for triggering the sending of the second information; information related to a third frequency domain resource used for communication between the third node and the second node; and information related to a preamble code used for random access.

[0015] According to an embodiment of the present disclosure, generating a second value based on the first value includes: generating the second value based on the first value when the second information includes the first value and it is determined that the third node belongs to a third node associated with a session or service for the ambient Internet of Things.

[0016] According to an embodiment of the present disclosure, the method also includes: receiving fifth information from the second node, wherein the fifth information includes at least one of the following: information related to adjustment of the first value, the first identifier; adjusting the first value based on the fifth information; and generating a new second value based on the adjusted first value.

[0017] According to an embodiment of the present disclosure, the method also includes: after receiving the second information from the second node, performing at least one of the following operations: receiving third information from the second node, wherein the third information includes the first identifier; and determining the time to send the preamble code based on the third information.

[0018] According to an embodiment of the present disclosure, determining the time to send a preamble code based on the third information includes: subtracting a preset value from the second value each time the third information is received, wherein the method also includes: sending a preamble code to the second node when the second value is reduced to zero.

[0019] According to an embodiment of the present disclosure, sending the preamble code to the second node includes: sending the preamble code on the corresponding frequency domain resources according to the frequency domain resource related information included in the second information.

[0020] According to an embodiment of the present disclosure, the method further includes: sending fourth information to the second node, wherein the fourth information includes at least one of the following: a device identifier of the third node, a subscription hidden identifier of the third node, a permanent device identifier of the third node, and information indicating that the third node has a measurement report related to an environmental Internet of Things device that can be reported.

[0021] According to an embodiment of the present disclosure, the method also includes: receiving eighth information from the second node, wherein the eighth information includes at least one of the following: the first identifier, information for requesting application layer-related data and / or measurements of the third node, information related to second time domain resources for communication between the third node and the second node, and information related to second frequency domain resources for communication between the third node and the second node.

[0022] According to an embodiment of the present disclosure, the method also includes: receiving seventh information from the second node, wherein the seventh information includes: information for non-access layer NAS, and first time domain resource-related information and / or first frequency domain resource-related information for communication between the third node and the second node.

[0023] According to an embodiment of the present disclosure, the method also includes: when the third node determines that it needs to respond to the first node in the non-access layer based on the seventh information, performing uplink information transmission based on the first time domain resource-related information and / or the first or third frequency domain resource-related information included in the seventh information.

[0024] According to an embodiment of the present disclosure, the method also includes: when the third node has application layer related data and / or measurements to be transmitted, performing transmission of the application layer related data and / or measurements based on at least one of the first or second time domain resource related information and the first or second or third frequency domain resource related information.

[0025] An embodiment of the present disclosure provides a method performed by a first node in a wireless communication system, comprising: triggering a first process associated with a session or service for an environmental Internet of Things; and sending first information to a second node, wherein the first information includes: a first identifier associated with the session or service for the environmental Internet of Things and / or relevant information of a third node associated with the session or service for the environmental Internet of Things.

[0026] According to an embodiment of the present disclosure, the first information further includes at least one of the following: a reason for triggering the sending of the first information; and area information associated with a session or service for the environmental Internet of Things.

[0027] According to an embodiment of the present disclosure, the method further includes: sending sixth information to the second node, wherein the sixth information includes: information for non-access stratum (NAS) and information for instructing the second node to configure resources for the third node.

[0028] An embodiment of the present disclosure provides a method performed by a second node in a wireless communication system, comprising: sending ninth information to a first node, wherein the ninth information is used to request context establishment and / or modification of at least one third node group, each of the at least one third node group including at least one third node; and receiving tenth information from the first node in response to the ninth information, wherein the ninth information includes at least one of the following: a first identifier of each of the at least one third node group associated with a session or service for an ambient Internet of Things, a list of device identifiers of at least one third node included in each of the at least one third node group, a list of subscription hidden identifiers of at least one third node included in each of the at least one third node group, a list of permanent device identifiers of at least one third node included in each of the at least one third node group, and a list of interface identifiers of at least one third node included in each of the at least one third node group; and wherein the tenth information includes at least one of the following: the first identifier of each of the at least one third node group, and a list of interface identifiers of third nodes accepted by the first node and included in each of the at least one third node group.

[0029] According to an embodiment of the present disclosure, the method further includes: receiving eleventh information from the first node, wherein the eleventh information includes: the first identifier and non-access stratum NAS information for at least one of the received third nodes.

[0030] According to an embodiment of the present disclosure, the method further includes: sending twelfth information to the first node, wherein the twelfth information includes: the first identifier, a non-access layer message related information unit or a non-access layer packet data unit received from at least one of the receiving third nodes.

[0031] According to an embodiment of the present disclosure, the method also includes: receiving thirteenth information from the first node, wherein the thirteenth information includes information for releasing the context of at least one third node group; and sending fourteenth information to each third node in the at least one third node group, wherein the fourteenth information includes information for providing each third node in the at least one third node group with information for releasing access layer related information.

[0032] An embodiment of the present disclosure provides a node device in a wireless communication system, comprising: a transceiver configured to send and receive signals; and a controller coupled to the transceiver and configured to execute a method performed by a node in the wireless communication system (e.g., a first node and / or a second node and / or a third node, etc.) according to an embodiment of the present disclosure.

[0033] An embodiment of the present disclosure provides a computer-readable medium having computer-readable instructions stored thereon. When the instructions are executed by a processor, they can be used to implement any method according to the embodiment of the present disclosure.

[0034] The present disclosure provides a method for environmental Internet of Things signaling or data transmission, which can ensure that environmental Internet of Things devices perform signaling or data transmission on appropriate resources through interaction between nodes. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The above and other aspects, features and advantages of certain embodiments of the present disclosure will become more apparent from the following description taken in conjunction with the accompanying drawings, in which:

[0036] Figure 1 is an exemplary system architecture 100 of System Architecture Evolution (SAE);

[0037] Figure 2A An example structure of a base station according to an embodiment of the present disclosure is shown;

[0038] Figure 2B An example structure of a base station according to an embodiment of the present disclosure is shown;

[0039] Figure 2C An example structure of a base station according to an embodiment of the present disclosure is shown;

[0040] Figure 3A An example method of ambient IoT signaling or data transmission according to an embodiment of the present disclosure is shown;

[0041] Figure 3B An example method of ambient IoT signaling or data transmission according to an embodiment of the present disclosure is shown;

[0042] Figure 4 4. A flow chart illustrating a method 450 performed by a second node in a wireless communication system according to an embodiment of the present disclosure is shown;

[0043] Figure 5 1. A flow chart of a method 500 performed by a third node in a wireless communication system according to an embodiment of the present disclosure is shown;

[0044] Figure 6 1 shows a flow chart of a method 600 performed by a first node in a wireless communication system according to an embodiment of the present disclosure;

[0045] Figure 7 A flowchart of a method 700 performed by a second node in a wireless communication system according to an embodiment of the present disclosure is shown; and

[0046] Figure 8 A schematic diagram of a node 800 in a wireless communication system according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0047] The following description, with reference to the accompanying drawings, is provided to facilitate a comprehensive understanding of the various embodiments of the present disclosure as defined by the claims and their equivalents. This description includes various specific details to facilitate understanding but should be considered as illustrative only. Therefore, one of ordinary skill in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the present disclosure. Furthermore, descriptions of well-known functions and structures may be omitted for the sake of clarity and conciseness.

[0048] The terms and expressions used in the following description and claims are not limited to their dictionary meanings, but are merely used by the inventor to enable a clear and consistent understanding of the present disclosure. Therefore, it should be apparent to those skilled in the art that the following description of various embodiments of the present disclosure is provided for illustration purposes only and not for the purpose of limiting the present disclosure as defined by the appended claims and their equivalents.

[0049] It will be understood that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component surface" includes reference to one or more of such surfaces.

[0050] The terms "include" or "may include" refer to the presence of the corresponding disclosed functions, operations, or components that can be used in various embodiments of the present disclosure, rather than limiting the presence of one or more additional functions, operations, or features. In addition, the terms "include" or "have" can be interpreted as indicating certain characteristics, numbers, steps, operations, constituent elements, components, or combinations thereof, but should not be interpreted as excluding the possibility of the presence of one or more other characteristics, numbers, steps, operations, constituent elements, components, or combinations thereof.

[0051] The term "or" used in various embodiments of the present disclosure includes any of the listed terms and all combinations thereof. For example, "A or B" may include A, may include B, or may include both A and B.

[0052] Unless otherwise defined, all terms (including technical or scientific terms) used in this disclosure have the same meaning as understood by those skilled in the art described in this disclosure. Common terms as defined in dictionaries are interpreted as having a meaning consistent with the context in the relevant technical field and should not be interpreted in an idealized or overly formal manner unless explicitly defined in this disclosure.

[0053] The accompanying drawings discussed below and the various embodiments used to describe the principles of the present disclosure in this patent document are intended to be illustrative only and should not be construed in any way to limit the scope of the present disclosure. Those skilled in the art will understand that the principles of the present disclosure can be implemented in any suitably arranged system or device.

[0054] Figure 1 It is an exemplary system architecture 200 according to various embodiments of the present disclosure. Other embodiments of the system architecture 200 can be used without departing from the scope of the present disclosure. User equipment (UE) 201 is a terminal device used to receive data. The next generation radio access network (NG-RAN) 202 is a radio access network, which includes a base station (gNB or eNB connected to the 5G core network 5GC, the eNB connected to the 5GC is also called ng-gNB) that provides the UE with an access wireless network interface. The access control and mobility management function entity (AMF) 203 is responsible for managing the UE's mobility context and security information. The user plane function entity (UPF) 204 mainly provides user plane functions. The session management function entity SMF 205 is responsible for session management. The data network (DN) 206 includes services such as operators, access to the Internet, and third-party services.

[0055] In the NR system, to support network function virtualization, more efficient resource management and scheduling, the base station (gNB / ng-eNB) that provides the wireless network interface for the terminal (UE) can be further divided into a centralized unit gNB-CU / ng-eNB-CU (gNB central unit / ng-eNB central unit) and a distributed unit gNB-DU / ng-eNB-DU (gNB distributed unit / ng-eNB distributed unit) (referred to as CU and DU in this disclosure). Figure 2AAs shown. gNB-CU has radio resource control (RRC), service data adaptation protocol (SDAP: Service Data Adaptation Protocol) and packet data convergence protocol (PDCP) protocol layers, etc., and ng-eNB-CU has RRC and PDCP layers. gNB-DU / ng-eNB-DU has radio link control protocol (RLC), medium access control (MAC) and physical layer, etc. There is a standardized public interface F1 between gNB-CU and gNB-DU, and a standardized public interface W1 between ng-eNB-CU and ng-eNB-DU. The F1 interface is divided into the control plane F1-C and the user plane F1-U. The transport network layer of F1-C is based on IP transmission. In order to transmit signaling more reliably, the SCTP protocol is added on top of IP. The application layer protocol is F1AP. SCTP can provide reliable application layer message transmission. The transport layer of F1-U is UDP / IP, and GTP-U is used to carry user plane protocol data units PDU on top of UDP / IP. Furthermore, for gNB-CU, as Figure 2B As shown, the gNB-CU may include the gNB-CU-CP (control plane portion of the centralized unit of the base station) and the gNB-CU-UP (user plane portion of the centralized unit of the base station). The gNB-CU-CP includes the base station's control plane functions, including the RRC and PDCP protocol layers, while the gNB-CU-UP includes the base station's user plane functions, including the SDAP and PDCP protocol layers. The standardized public interface E1, using the E1AP protocol, is used between the gNB-CU-CP and gNB-CU-UP. The interface between the control plane portion of the centralized unit of the base station and the distributed units of the base station is the F1-C interface, i.e., the F1 control plane interface. The interface between the user plane portion of the centralized unit of the base station and the distributed units of the base station is the F1-U interface, i.e., the F1 user plane interface. In addition, in the NR system, the base station that provides the E-UTRA user plane and control plane and accesses the 5G core network is called ng-eNB. In order to support virtualization, this base station (ng-eNB) can also be further divided into a centralized unit ng-eNB-CU (gNB central unit / ng-eNB central unit) and a distributed unit ng-eNB-DU (gNB distributed unit / ng-eNB distributed unit) (abbreviated as CU and DU in this disclosure), such as Figure 2CAs shown in the figure, the ng-eNB-CU has the RRC and PDCP layers. The gNB-DU / ng-eNB-DU has the Radio Link Control (RLC), Medium Access Control (MAC), and physical layers. A standardized public interface, W1, is used between the ng-eNB-CU and ng-eNB-DU. The W1 interface is divided into the control plane, W1-C, and the user plane, W1-U. The transport network layer of W1-C is based on IP. To ensure more reliable signaling, the SCTP protocol is added on top of IP. The application layer protocol is W1AP. The transport layer of W1-U is UDP / IP, and GTP-U is used on top of UDP / IP to carry user plane protocol data units (PDUs).

[0056] Currently, the environmental Internet of Things (IoT) technology is in its early stages of research. This disclosure primarily relates to the signaling or data transmission of the IoT.

[0057] Exemplary embodiments of the present disclosure are further described below with reference to the accompanying drawings.

[0058] The text and drawings are provided as examples only to aid understanding of the present disclosure. They should not be construed as limiting the scope of the present disclosure in any way. Although certain embodiments and examples have been provided, it will be apparent to those skilled in the art based on what is disclosed herein that the embodiments and examples shown may be modified without departing from the scope of the present disclosure.

[0059] Before introducing the specific content, some assumptions and definitions of this disclosure are given below.

[0060] The message names in this disclosure are only examples, and other message names may also be used.

[0061] The terms “first”, “second”, etc. included in the message names of the present disclosure are merely examples of the messages and do not represent the order of execution.

[0062] Detailed descriptions of steps not related to the present disclosure are omitted in this disclosure.

[0063] In this disclosure, the steps in each process can be performed in combination with each other or individually. The execution steps of each process are only examples and other possible execution orders are not excluded.

[0064] In the present disclosure, a base station may be a 5G base station (such as gNB, ng-eNB), a 4G base station (such as eNB), a 6G base station, or other types of access nodes.

[0065] In this disclosure, data transmission refers to the reception or sending of data.

[0066] In some embodiments, the node involved in the present disclosure may be:

[0067] nFirst node: can be the core network or Access and Mobility Management Function (AMF), etc.

[0068] nSecond node: can be a base station, a centralized unit of a base station, a distributed unit of a base station, a control plane part of a centralized unit of a base station, a user plane part of a centralized unit of a base station, etc.

[0069] nThird node: can be an environmental IoT device or other terminal or user device or equipment. nIn this disclosure, report can also be used interchangeably with data, measurement, measurement data, measurement report, measurement result, etc.

[0070] In this document, group, class, set, etc. can be used interchangeably, and "group" will be used as an example for description below. In this document, depending on the context, a group or a class of environmental IoT devices may also be referred to as a group of environmental IoT devices, or as an environmental IoT device group (group) or an environmental IoT device class (class) or an environmental IoT device group (set or group), etc. Each environmental IoT device group (group) or environmental IoT device class (class) or environmental IoT device group (set or group) may include at least one environmental IoT device. In this document, a group or a class or a group of environmental IoT devices may also refer to at least one group or at least one class or at least one group of environmental IoT devices. In addition, in this document, an environmental IoT device may also be referred to as a third node.

[0071] The present disclosure provides a method for environmental Internet of Things signaling or data transmission, which ensures that environmental Internet of Things devices perform signaling or data transmission on appropriate resources through interaction between nodes.

[0072] The ambient IoT signaling or data transmission solution disclosed herein may include the following combinations: Figure 3A and Figure 3B The process described in .

[0073] Figure 3A An example method of ambient IoT signaling or data transmission according to an embodiment of the present disclosure is shown. Figure 3A As shown:

[0074] In step 301 (which may further include steps 301-1 and 301-2), the first node triggers an AIoT-related process (also referred to herein as a first process associated with a session or service for the AIoT). This process may be used to initiate paging to an AIoT device, and / or to search for, locate, or inventory AIoT devices, and / or to request or instruct the AIoT device to report sensor data. In some embodiments, the first node sends first information to the second node.

[0075] In some embodiments, the first information may include at least one of the following information:

[0076] - A session identifier and / or a service identifier, used to identify a session and / or a service of the ambient Internet of Things. This identifier may also be referred to herein as a first identifier associated with a session and / or a service for the ambient Internet of Things.

[0077] -Request or indication or paging reason, used to indicate the reason for triggering the environmental Internet of Things related process or the reason for triggering the sending of the first information, for example, it can indicate that the reason for triggering the process is inventory, or for example, it can indicate that the reason for triggering the process is sensor data and / or measurement reporting.

[0078] - Service area or paging area, used to describe the area-related information involved or corresponding to the AIoT-related process. This may also be referred to as area information associated with the AIoT session and / or service.

[0079] - Set related information, used to describe a group of ambient IoT devices. This may also be referred to herein as ambient IoT device related information corresponding to the first process, or information related to an ambient IoT device or third node associated with a session or service for the ambient IoT.

[0080] In some embodiments, the first node may send different corresponding first information to the second node for different session identifiers and / or service identifiers. That is, in some embodiments, the first node may send one or more different first information corresponding to one or more different session identifiers and / or service identifiers to the second node.

[0081] In some implementations, the service area or paging area may include at least one of the following information:

[0082] - Tracking area identifier or tracking area identifier list

[0083] - Tracking area code or list of tracking area codes

[0084] - Physical cell identity or list of physical cell identities

[0085] -Cell global identity or cell global identity list

[0086] In some embodiments, the group-related information may include at least one of the following information:

[0087] - A mask is used to represent information related to a bit string or data string that needs to be compared with part or all of the ambient IoT device identification or stored data.

[0088] -Mask pointer, used to indicate the starting position of the comparison.

[0089] -Group ID, used to identify the group to which the ambient IoT device belongs.

[0090] The first information may be included in an NG interface application protocol NGAP message, with a message name such as group paging message, cluster paging message, class paging message, etc. It may also be included in an existing NGAP message.

[0091] The second node confirms the ambient Internet of Things related session and / or service initiated by the first node according to the session identifier and / or service identifier.

[0092] The second node confirms the reason for triggering the environmental Internet of Things related process based on the request, indication or paging reason.

[0093] The second node confirms the area involved in the corresponding environmental Internet of Things related service and / or the area where the second node needs to page the environmental Internet of Things device based on the service area or the paging area.

[0094] The second node confirms a group of environmental IoT devices that need to be served and / or paged according to the group-related information.

[0095] Optionally, a possible implementation is that if the first information does not contain group-related information, the second node considers that all environmental Internet devices in the service area or paging area are environmental Internet of Things devices that are served and / or found and / or searched and / or paged.

[0096] In step 302, after receiving the first message, the second node sends a second message to the third node based on the content of the first message. The second message can be used to initiate a paging call to the ambient IoT device, and / or can be used to search, locate, or inventory the ambient IoT device, and / or can be used to request or instruct the ambient IoT device to report sensor data.

[0097] In some embodiments, the second information may include at least one of the following information:

[0098] -Session ID and / or service ID, used to identify the session and / or service of the ambient IoT.

[0099] A request, indication, or paging reason, indicating the reason for triggering an AIoT-related process. For example, the reason for triggering the process may be inventory management, or sensor data and / or measurement reporting. This reason may also be referred to as the reason for triggering the second node to send the second information.

[0100] - Set or Group related information, used to describe a group of ambient IoT devices. Here, it can also be referred to as ambient IoT device related information associated with the second information.

[0101] The first value may be a value used for random access. For example, the first value may be used to enable the ambient IoT device to generate a second value related to the first value, so as to be used for random access by the ambient IoT device.

[0102] - Frequency domain related information (which may also be referred to in this article as information related to a third frequency domain resource used for communication between the third node and the second node), is used to provide the ambient IoT device with frequency domain resources for subsequent communication with the second node.

[0103] - A list of preamble-related information (also referred to herein as preamble-related information for random access), which is used by the ambient IoT device to confirm preamble-related information to be used in subsequent communication with the second node.

[0104] In some embodiments, the second node may send different corresponding second information to the third node for different session identifiers and / or service identifiers. That is, in some embodiments, the second node may send one or more different second information corresponding to one or more different session identifiers and / or service identifiers to the third node.

[0105] In some embodiments, the group-related information may include at least one of the following information:

[0106] - A mask is used to represent information related to a bit string or data string that needs to be compared with part or all of the ambient IoT device identification or stored data.

[0107] -Mask pointer, used to indicate the starting position of the comparison.

[0108] -Group ID, used to identify the group to which the ambient IoT device belongs.

[0109] In some embodiments, the frequency domain related information may include at least one of the following information:

[0110] -Bandwidth information

[0111] - Frequency domain starting point information

[0112] -Frequency information

[0113] In some implementations, the preamble-related information list may include one or more preamble-related identifiers or indexes.

[0114] The second information may be included in a radio resource control RRC message, with a message name such as a group paging message, a cluster paging message, or a class paging message; it may also be included in an existing RRC message; it may also be included in a media access control control unit MAC CE, with a message name such as an inventory request, a search request, or a lookup request; it may also be included in a downlink control indication DCI.

[0115] The third node confirms the ambient IoT related session and / or service according to the session identifier and / or service identifier.

[0116] The third node confirms the reason for triggering the environmental Internet of Things related process based on the request, indication or paging reason.

[0117] The third node confirms whether the device belongs to the group of environmental IoT devices being served and / or found and / or searched and / or paged according to the group-related information.

[0118] Optionally, a possible implementation is that if the second information does not include group-related information, the third node can confirm that it belongs to the environmental Internet of Things device that is being served and / or found and / or searched and / or paged.

[0119] As for how the third node confirms whether it belongs to the group of environmental Internet of Things devices that are being served and / or looked up and / or searched and / or paged, a possible implementation method is that the third node confirms based on the group identifier contained in the second information: the group identifier information corresponding to the group to which the third node belongs will be pre-configured and / or stored in the third node. When the third node receives the second information, it determines whether the group identifier is also included in the pre-configured and / or stored group identifier information based on the group identifier contained in the second information; if included, the third node can confirm that it belongs to the group of environmental Internet of Things devices that are being served and / or looked up and / or searched and / or paged; if not included, the third node can confirm that it does not belong to the group of environmental Internet of Things devices that are being served and / or looked up and / or searched and / or paged.

[0120] Another possible implementation is that the third node confirms based on the mask and / or mask pointer contained in the second information. The environmental IoT device identifier or stored data of the third node is pre-configured and / or stored in the third node. When the third node receives the second information, it compares the mask contained in the second information with the pre-configured and / or stored environmental IoT device identifier or stored data: If the second information does not contain a mask pointer, the third node will compare the mask starting from the most significant bit (MSB) or least significant bit (LSB) of the environmental IoT device identifier or stored data; If the second information also contains a mask pointer, the third node will compare the mask starting from the corresponding address, position, or bit in the environmental IoT device identifier or stored data pointed to or indicated by the mask pointer. If the third node finds that the information matches after the comparison, it responds or performs subsequent operations or initiates subsequent processes, that is, it subsequently interacts with the second node; If the information does not match, it does not respond or perform subsequent operations or initiate subsequent processes, that is, it does not subsequently interact with the second node regarding the second information.

[0121] The third node confirms frequency domain resources to be used in subsequent communications with the second node according to the frequency domain related information.

[0122] The third node confirms the preamble related information to be used in subsequent communications with the second node according to the preamble related information list.

[0123] In step 303, after receiving the second information, the third node determines, based on the content of the second information, whether it belongs to the group of environmental IoT devices that are being served and / or found and / or searched and / or paged; if so, a second value is generated based on the first value included in the second information, and the second value is stored.

[0124] Regarding how the third node generates the second value based on the first value, one possible implementation is that the second value is a random value generated based on the first value. Specifically, the second value is a random integer value ranging from 0 to 2^(first value), inclusive. In this document, ^ represents a power symbol. For example, in this implementation, assuming the first value is 10, the second value is a random integer value greater than or equal to 0 and less than or equal to 1024 (2^10).

[0125] In another possible implementation, the second value is a random integer value ranging from 0 to {2^(first value) minus 1}, inclusive. It should be understood that the above possible implementations are merely examples. Depending on the actual application scenario, the second value may also be a random value generated based on the first value using any other specific rule or method, which is not limited herein. The other values described herein are similar.

[0126] In step 304a, the second node may optionally send fifth information to the third node. The fifth information may be used to adjust the first value.

[0127] In some implementations, the fifth information may include at least one of the following information:

[0128] -Session ID and / or service ID, used to identify the session and / or service of the ambient IoT.

[0129] -Information related to adjusting the first value.

[0130] In some embodiments, the second node may send different corresponding fifth information to the third node for different session identifiers and / or service identifiers. That is, in some embodiments, the second node may send one or more different fifth information corresponding to one or more different session identifiers and / or service identifiers to the third node. In addition, the second node may also send multiple fifth information to the third node for the same session identifier and / or service identifier, i.e., adjust the first value multiple times.

[0131] Among them, one possible implementation of the information related to the adjustment of the first value is: the information related to the adjustment of the first value includes the adjusted first value; another possible implementation is: the information related to the adjustment of the first value includes information related to the difference between the adjusted first value and the original first value; another possible implementation is: the information related to the adjustment of the first value includes a bit map, and each bit in the bit map refers to a specific meaning (such as the xth bit refers to the adjusted first value being equal to the original first value minus a preset value (for example, one), the yth bit refers to the adjusted first value being equal to the original first value, the zth bit refers to the adjusted first value being equal to the original first value plus a preset value (for example, one), etc.).

[0132] The fifth information can be included in the radio resource control RRC message, with a message name such as group paging adjustment message, group paging adjustment message, class paging adjustment message, group adjustment message, group adjustment message, class adjustment message, etc.; it can also be included in the existing RRC message; it can also be included in the media access control control unit MAC CE, with a message name such as inventory adjustment, search adjustment, lookup adjustment, etc.; it can also be included in the downlink control indication DCI.

[0133] The third node identifies the corresponding ambient IoT-related session and / or service based on the session identifier and / or service identifier. If the third node has confirmed, based on the second information, that it belongs to the group of ambient IoT devices being served and / or searched and / or paged, and the session identifier and / or service identifier (also referred to herein as the second session identifier and / or second service identifier) contained in the fifth information received by the third node matches the session identifier and / or service identifier (also referred to herein as the first session identifier and / or first service identifier) contained in the previously received second information, then when the third node receives the fifth information in which the session identifier and / or service identifier matches the second information, the third node determines the adjusted first value based on the information related to the adjustment of the first value contained in the fifth information, generates a second value based on the adjusted first value, and stores the second value. In one possible implementation, the second value is a random value generated based on the adjusted first value. Specifically, the second value is a random integer value ranging from 0 to 2^(adjusted first value), inclusive.

[0134] In step 304 (e.g., which may further include steps 304-1 and 304-2), after sending the second or fifth message, the second node may subsequently send at least one third message to the third node. This third message may be used by the third node to determine a subsequent time point for communication with the second node. In this document, the term "time point" may be used interchangeably with "time."

[0135] In some embodiments, the third information may include at least a session identifier and / or a service identifier, which is used to identify the session and / or service of the ambient Internet of Things.

[0136] The third information may be included in a radio resource control RRC message, with a message name such as group paging repetition message, group paging repetition (repetition) message, class paging repetition message, group repetition message, group repetition message, class repetition message, etc.; it may also be included in an existing RRC message; it may also be included in the media access control control unit MAC CE, with a message name such as inventory repetition, search repetition, find repetition, etc.; it may also be included in a downlink control indication DCI.

[0137] The third node identifies the corresponding ambient IoT-related session and / or service based on the session identifier and / or service identifier. If the third node has confirmed, based on the second information, that it belongs to the group of ambient IoT devices being served and / or being searched and / or being paged, and the session identifier and / or service identifier (also referred to herein as the third session identifier and / or the third service identifier) contained in the third information received by the third node matches the session identifier and / or service identifier (also referred to herein as the first session identifier and / or the first service identifier) contained in the previously received second information, then for each piece of third information received in which the session identifier and / or the service identifier matches the second information, the third node decrements the stored second value by a preset value (e.g., one, hereinafter using one as an example for illustrative purposes): if the decremented value is not zero, the decremented value is stored as the new second value; if the decremented value is zero, the third node selects a preamble based on the preamble-related information list contained in the second information, and the third node switches to the corresponding frequency domain resource to transmit the selected preamble based on the frequency domain-related information contained in the second information.

[0138] It should be noted that there is no strict order between step 304a and step 304. For example, unlike what is shown in the figure, step 304 (304-1 and / or 304-2) can be performed before step 304a.

[0139] Step 305: The third node sends the selected preamble code to the second node according to the frequency domain related information included in the second information.

[0140] Step 306: After receiving the preamble, the second node sends a random access response to the third node. In some embodiments, the random access response includes at least one of the following information:

[0141] -The third value is used by the ambient IoT device to determine the execution of fallback-related operations.

[0142] - Preamble identifier.

[0143] -A temporary wireless network temporary identifier, used to provide the ambient IoT device with an access network identifier for use when communicating with the second node during random access.

[0144] -Frequency domain related information, used to provide the ambient IoT device with frequency domain resources to be used in subsequent communications with the second node.

[0145] In some embodiments, the frequency domain related information may include at least one of the following information:

[0146] -Bandwidth information

[0147] - Frequency domain starting point information

[0148] -Frequency information

[0149] The third node determines whether the received preamble code identifier matches the preamble code previously sent to the second node: if it matches, the third node uses the temporary wireless network temporary identifier included in the random access response as the access network identifier used when communicating with the second node during the random access, and determines the frequency domain resources used in subsequent communications with the second node based on the frequency domain related information; if there is no matching preamble code identifier, the third node determines to perform fallback-related operations, and determines the fallback value based on the third value.

[0150] It should be noted that the method in which the third node uses the backoff value is similar to the method in which the second value is used. For example, the third node can only send the preamble code to the second node again when the backoff value is reduced to zero or later.

[0151] Regarding how the third node generates a fallback value based on the third value, one possible implementation is that the fallback value is a random value generated based on the third value. Specifically, the fallback value is a random integer value ranging from 0 to 2^(third value), inclusive. Another possible implementation is that the fallback value is equal to the third value, or equal to the third value plus one, or equal to the third value minus one.

[0152] In step 307, after receiving the random access response, if the random access response includes a matching preamble identifier, the third node sends fourth information to the second node. The fourth information is used to provide the second node with information about the ambient IoT device and / or request establishment of a radio resource control connection.

[0153] In some embodiments, the fourth information may include at least one of the following information:

[0154] - A user equipment identity of the third node, such as a temporary mobile subscriber identity (TMSI).

[0155] -Subscription Concealed Identifier (SUCI) of the third node.

[0156] -Permanent Equipment Identifier (PEI) of the third node.

[0157] - Available report indication, used to indicate that the third node has a report available to report. The report may include a measurement report related to the environmental Internet of Things.

[0158] The fourth information may be included in a radio resource control RRC message, with a message name such as a device information message, a user equipment information message, etc.; it may also be included in an existing RRC message, such as an RRC establishment request message, etc.

[0159] If the third node has not been configured with a temporary mobile user identity, a possible implementation is: the third node generates a random value as the user equipment identity.

[0160] Optionally, the subscription hiding identifier and permanent device identifier of the third node may be included in the non-access stratum message. In this case, after receiving the non-access stratum message, the second node will subsequently forward the non-access stratum message to the first node.

[0161] If the third node has a measurement-related report (such as a sensor data report), the fourth information includes an available report indication.

[0162] The second node confirms that the third node has a measurement-related report according to the available report indication included in the fourth information. Optionally, the second node decides to trigger a subsequent process for obtaining the measurement-related report from the third node.

[0163] Step 308: After receiving the fourth information, the second node sends a conflict resolution message to the third node. The conflict resolution message can be used to resolve conflicts in random access and / or activate security for the third node.

[0164] The conflict resolution message includes part or all of the user equipment identifiers of the third node.

[0165] The third node determines whether the user equipment identifier of the third node contained in part or all of the received conflict resolution message matches the user equipment identifier configured or stored by itself: if it matches, the third node will change from the temporary wireless network temporary identifier contained in the random access response to the wireless network temporary identifier, and the wireless network temporary identifier is used to identify the IoT device in the access network when subsequently communicating with the second node; if it does not match, the third node considers that the random access has failed, and generates a random access-related value based on the first value or the third value for the next random access (i.e., the next sending of the preamble code).

[0166] It should be noted that the method in which the third node uses the random access related value is similar to the method in which the second value is used.

[0167] In step 309, after receiving the fourth information, the second node sends an initial user equipment message to the first node. The initial user equipment message is used to provide the first node with relevant information about the environmental Internet of Things device.

[0168] In some implementations, the initial user equipment message may include at least one of the following information:

[0169] -Session ID and / or service ID, used to identify the session and / or service of the ambient IoT.

[0170] - A user equipment identity of the third node, such as a temporary mobile subscriber identity (TMSI).

[0171] -Subscription Concealed Identifier (SUCI) of the third node.

[0172] -Permanent Equipment Identifier (PEI) of the third node.

[0173] Optionally, the subscription hidden identifier and permanent device identifier of the third node can be included in a non-access layer message related information unit or a non-access layer packet data unit (and the non-access layer message related information unit or the non-access layer packet data unit is included in the initial user equipment message). In this case, the second node sends the non-access layer message to the first node.

[0174] The first node identifies a session and / or a service of the ambient Internet of Things according to the session identifier and / or the service identifier.

[0175] The first node identifies the user equipment (ie, the ambient IoT device) according to the initial user equipment message.

[0176] Step 310: After receiving the initial user equipment message, the first node initiates an initial context establishment process to the second node, so as to establish a user equipment context for the third node at the second node.

[0177] In step 311, after the first node and the second node complete the initial context establishment process, the first node may send sixth information to the second node. The sixth information may be used to provide the second node with information related to performing non-access stratum (NAS) operations (such as access operations, read / write operations, lock operations, storage operations, etc.) on the third node. For example, the sixth information may include information for the non-access stratum (NAS) and / or information for instructing the second node to configure resources for the third node.

[0178] For example, in some embodiments, the sixth information may include at least one of the following information:

[0179] -Third node related identification information, used to identify the third node corresponding to the non-access stratum related information.

[0180] -Session ID and / or service ID, used to identify the session and / or service of the ambient IoT.

[0181] - Non-access layer message related information unit or non-access layer packet data unit, which contains non-access layer related operation requests or commands, etc.

[0182] - Third-node response related information, used to provide related information on whether the non-access stratum related information requires a third node to respond.

[0183] -Information used to instruct the second node to configure resources for the third node (eg, time domain resources and / or frequency domain resources used for the third node to access or communicate with the second node).

[0184] The sixth information may be included in an existing NGAP DOWNLINK NAS TRANSPORT message, or in other existing or new NGAP messages.

[0185] The second node confirms the third node corresponding to the relevant information of the non-access stratum according to the relevant identification information of the third node.

[0186] The second node confirms the corresponding ambient IoT related session and / or service according to the session identifier and / or service identifier.

[0187] Optionally, the second node confirms whether it is necessary to provide the third node with time domain resources and / or frequency domain resources required for a subsequent response based on the response-related information of the third node.

[0188] In step 312, after receiving the sixth information, the second node sends seventh information to the third node based on the content of the sixth information. The seventh information is used to send non-access stratum related information to the third node and / or provide the third node with time domain resources and / or frequency domain resources for subsequent interaction with the second node. For example, the seventh information may include information for NAS and information related to first time domain resources and / or first frequency domain resources used for communication between the third node and the second node.

[0189] For example, in some embodiments, the seventh information may include at least one of the following information:

[0190] -Session ID and / or service ID, used to identify the session and / or service of the ambient IoT.

[0191] - Non-access layer message related information unit or non-access layer packet data unit, which contains non-access layer related operation requests or commands, etc.

[0192] -The wireless network temporary identifier of the third node, used by the third node to identify the seventh information sent to the third node at the access layer.

[0193] - Time domain related information, used to provide the ambient IoT device with time domain resource related information used in subsequent communication and / or response with the second node.

[0194] -Frequency domain related information, used to provide the ambient IoT device with frequency domain resources to be used in subsequent communication and / or response with the second node.

[0195] In some embodiments, the frequency domain related information may include at least one of the following information:

[0196] -Bandwidth information

[0197] - Frequency domain starting point information

[0198] -Frequency information

[0199] It should be noted that if the third node response related information included in the sixth information received by the second node allows the second node to confirm that the third node needs to provide a response later, the second node can include time domain related information and / or frequency domain related information in the seventh information.

[0200] The seventh information can be included in the existing RRC DLInformationTransfer message, or in other existing or new RRC messages; it can also be included in the media access control control unit MAC CE, with a message name such as operation command, operation request, etc.; it can also be included in the downlink control indication DCI.

[0201] The third node confirms the ambient IoT related session and / or service according to the session identifier and / or service identifier.

[0202] The third node confirms, based on the time domain related information, the time domain resource related information to be used in subsequent communication and / or response with the second node.

[0203] The third node confirms, based on the frequency domain related information, frequency domain resources to be used in subsequent communications and / or responses with the second node.

[0204] Step 312a (for example, may further include one or more of steps 312a-1, 312a-2, and 312a-3). Optionally, if the third node confirms that it needs to respond to the first node in the non-access layer based on the content of the seventh information (for example, the seventh information may also include information indicating that the third node needs to respond to the first node in the non-access layer), the third node transmits data and / or signaling on the corresponding time-frequency resources based on the time domain related information and / or frequency domain related information contained in the seventh information (for example, uplink information transmission including a non-access layer message), and sends it to the second node via an RRC message, where the RRC message includes at least a non-access layer message related information unit or a non-access layer packet data unit for the response.

[0205] Optionally, the RRC message may include an available reporting indication, used to indicate that the third node has a report that can be reported.

[0206] The second node confirms that the third node has a measurement-related report according to the available report indication included in the RRC message. Optionally, the second node decides to trigger a subsequent process for obtaining the measurement-related report from the third node.

[0207] It should be noted that the RRC message sent by the third node to the second node may be an RRC uplink information transmission message, or may be other existing or new RRC messages.

[0208] Optionally, after receiving the RRC message sent by the third node, the second node sends the non-access stratum message related information unit or the non-access stratum packet data unit contained in the RRC message to the first node via an NGAP message. The NGAP message may be an NGAP uplink non-access stratum transmission message or other existing or new NGAP message.

[0209] In step 313 (for example, it may further include steps 313-1 and 313-2), after the second node receives a request from the first node (for example, a request or indication included in the first information or a paging reason is received to request the third node to report sensing data and / or measurements), or after receiving an indication from the third node (for example, an available report indication included in the fourth information or uplink information transmission message), the second node may trigger an information extraction-related process. The second node may send the eighth information to the third node. The eighth information is used to extract information from the third node (the extracted information is, for example, sensing data measured or collected by the third node).

[0210] In some implementations, the eighth information may include at least one of the following information:

[0211] -Session ID and / or service ID, used to identify the session and / or service of the ambient IoT.

[0212] - Application layer report request, used to request the third node to report application layer related data and / or measurements (such as sensor data and / or measurements). In this document, it can also be referred to as information for requesting application layer related data and / or measurements from the third node.

[0213] - Time domain related information, used to provide the ambient IoT device with information for subsequent communication with the second node and / or

[0214] In this article, it can also be referred to as the second time domain resource related information used for communication between the third node and the second node.

[0215] - Frequency domain related information, used to provide the environmental IoT device with information for subsequent communication with the second node and / or

[0216] In this document, the information may also be referred to as the second frequency domain resource related information used for communication between the third node and the second node.

[0217] In some embodiments, the frequency domain related information may include at least one of the following information:

[0218] -Bandwidth information

[0219] - Frequency domain starting point information

[0220] -Frequency information

[0221] The eighth information may be included in an existing RRC UEInformationRequest message, or in other existing or new RRC messages.

[0222] The third node confirms the ambient IoT related session and / or service based on the session identifier and / or service identifier in the eighth information (also referred to as the fourth session identifier and / or the fourth service identifier in this article).

[0223] The third node confirms that application layer related data and / or measurements need to be reported according to the application layer report request.

[0224] The third node confirms, based on the time domain related information, the time domain resource related information to be used in subsequent communication and / or response with the second node.

[0225] The third node confirms, based on the frequency domain related information, frequency domain resources to be used in subsequent communications and / or responses with the second node.

[0226] In step 314 (e.g., which may further include steps 314-1, 314-2, and 314-3), if the third node has an application layer report to transmit, data and / or signaling is transmitted on the corresponding time-frequency resources. If the eighth information includes time domain related information and / or frequency domain related information, the third node transmits data and / or signaling on the corresponding time domain and / or frequency domain resources based on the relevant information included in the eighth information. The application layer report may be included in a non-access stratum message related information unit or a non-access stratum packet data unit and sent to the second node via an RRC message.

[0227] The RRC message may be an RRC user equipment information response message, or may be other existing or new RRC messages.

[0228] After receiving the RRC message sent by the third node, the second node sends the non-access stratum message related information unit or non-access stratum packet data unit contained in the RRC message to the first node via an NGAP message. The NGAP message can be an NGAP uplink non-access stratum transmission message or other existing or new NGAP message.

[0229] The above method ensures that the network side can obtain relevant information stored in the environmental IoT devices in an interactive manner; and by establishing a context on the network side, further relevant commands or operations are performed on the environmental IoT devices, ensuring normal communication between the network side and the environmental IoT devices.

[0230] Figure 3B An example method of ambient IoT signaling or data transmission according to an embodiment of the present disclosure is shown. Figure 3B As shown:

[0231] Step 400: The first node, the second node, and the third node perform necessary interactions. The specific interaction process or steps are the same as Figure 3A Steps 301-308.

[0232] In step 401, after receiving at least one fourth message, the second node sends ninth message to the first node. The ninth message is used to provide the first node with information related to ambient IoT devices (related to a third node group, or related to a group of third nodes), and / or request context establishment for a group of ambient IoT devices, and / or request context modification for a group of ambient IoT devices.

[0233] In some implementations, the ninth information may include at least one of the following information:

[0234] - A session identifier and / or service identifier for each third node group in at least one third node group, used to identify a session and / or service of the ambient Internet of Things. This identifier may also be referred to herein as a fifth session identifier and / or fifth service identifier related to the ambient Internet of Things.

[0235] - A list of user equipment identities of at least one third node included in each of the at least one third node group, where the user equipment identity of the third node is, for example, a temporary mobile user identity.

[0236] - a subscription hidden identification list of at least one third node included in each of the at least one third node group.

[0237] - a permanent device identification list of at least one third node included in each of the at least one third node group.

[0238] - an interface identification list of at least one third node included in each of the at least one third node group, used to identify a specific third node between the first node and the second node.

[0239] Optionally, the subscription hidden identifier and permanent device identifier of the third node can be included in a non-access layer message related information unit or a non-access layer packet data unit. In this case, the second node sends a list of non-access layer message related information units or a list of non-access layer packet data units to the first node.

[0240] It should be noted that the interface identification list of the third node is associated with the user equipment identification list and / or subscription hidden identification list and / or permanent equipment identification list of the third node, that is, the association relationship between the interface identification related information of the third node and its user equipment identification and / or non-access layer packet data unit is also explicitly or implicitly indicated by the ninth information. A possible implementation method is that the interface identification related information of the third node has a one-to-one correspondence with the user equipment identification and / or subscription hidden identification and / or permanent equipment identification and / or non-access layer packet data unit. In this way, when the first node and the second node subsequently interact with at least one third node, they only need to use the interface identification related information of the third node to identify the relevant third node.

[0241] The ninth information may be included in an NGAP message, with a message name such as initial group context establishment request, group context establishment request, group context modification request, group information transmission, etc.

[0242] The first node identifies a session and / or a service of the ambient Internet of Things according to the session identifier and / or the service identifier.

[0243] The first node confirms the interface identifier related information corresponding to the third node between the first node and the second node and participating in the corresponding environment IoT session and / or service according to the interface identifier list of the third node.

[0244] In step 402, after receiving the ninth message, the first node sends a tenth message to the second node based on the content of the ninth message. The tenth message is used to respond to the establishment of a group of ambient IoT device contexts and / or respond to the modification of a group of ambient IoT device contexts.

[0245] In some implementations, the tenth information may include at least one of the following information:

[0246] - A session identifier and / or service identifier for each third node group in at least one third node group, used to identify a session and / or service of the ambient Internet of Things. This identifier may also be referred to herein as a sixth session identifier and / or sixth service identifier related to the ambient Internet of Things.

[0247] - a list of interface identifiers of third nodes accepted by each third node group in at least one third node group, used for the second node to confirm or identify at least one third node accepted by the first node.

[0248] The tenth information may be included in an NGAP message, with a message name such as initial group context establishment response, group context establishment response, group context modification response, group information transmission response, etc.

[0249] The second node identifies the session and / or service of the ambient Internet of Things according to the session identifier and / or the service identifier.

[0250] The second node confirms or identifies the third node accepted by the first node according to the interface identification list of the accepted third node.

[0251] Optionally, the second node may also confirm or identify third nodes not accepted by the first node based on the interface identifier list of the accepted third nodes; then, optionally, the second node may send an RRC release message to those third nodes not accepted by the first node.

[0252] In step 403, after the first node and the second node complete the context establishment of the group, the first node may send eleventh information to the second node. The eleventh information may be used to send a non-access stratum message-related information unit or a non-access stratum packet data unit to at least one third node in the third node group (e.g., the accepted third node group or the accepted third node), and / or provide the second node with non-access stratum-related information (non-access stratum-related information may include, for example, access operations, read / write operations, lock operations, storage operations, etc.) for at least one third node in the third node group.

[0253] In some implementations, the eleventh information may include at least one of the following information:

[0254] -Session ID and / or service ID, used to identify the session and / or service of the ambient IoT.

[0255] - an interface identification list of at least one third node, used to identify a specific third node between the first node and the second node.

[0256] - a list of non-access stratum message related information units or a list of non-access stratum packet data units, wherein

[0257] Contains non-access stratum related operation requests or commands, etc. It can also be called information for non-access stratum (NAS).

[0258] - A third node response related information list, used to provide relevant information on whether the non-access stratum related information requires a third node to respond.

[0259] The eleventh information may be included in an NGAP message, with a message name such as downlink group non-access layer transmission message, downlink group non-access layer transmission message, downlink class non-access layer transmission message, etc.; it may also be included in other existing or new NGAP messages.

[0260] It should be noted that the interface identification list of the third node is associated with the non-access layer message related information unit list or the non-access layer packet data unit list and / or the third node response related list, that is, the association relationship between the interface identification related information of the third node and its non-access layer message related information unit or the non-access layer packet data unit and / or the response related information is also explicitly or implicitly indicated by the eleventh information. A possible implementation method is that the interface identification related information of the third node corresponds one-to-one with the non-access layer message related information unit or the non-access layer packet data unit and / or the response related information. In this way, after receiving the eleventh information, the second node can confirm or identify at least one third node in the third node group targeted by the eleventh information, as well as the non-access layer message related information unit or the non-access layer packet data unit and / or the response related information corresponding to each third node involved.

[0261] The second node confirms the corresponding ambient IoT related session and / or service according to the session identifier and / or service identifier.

[0262] The second node confirms or identifies at least one third node in the third node group corresponding to the relevant information of the non-access stratum according to the interface identifier list of the third node.

[0263] Step 404: The second node and the third node perform necessary interactions. Figure 3A Steps 313 and 314, and / or Figure 3A Step 312 or steps 312 and 312a (step 312a is optional: if the eleventh message provides relevant information requiring a response from the third node for the third node, steps 312 and 312a are required; otherwise, only step 312 is required).

[0264] In step 405, after the second node receives the non-access stratum message-related information unit or the non-access stratum packet data unit from at least one third node in the third node group, the second node may send twelfth information to the first node. The twelfth information is used to send the non-access stratum message-related information unit or the non-access stratum packet data unit received from at least one third node in the third node group to the first node.

[0265] In some implementations, the twelfth information may include at least one of the following information:

[0266] -Session ID and / or service ID, used to identify the session and / or service of the ambient IoT.

[0267] - a list of interface identifiers of third nodes, used to identify a specific third node between the first node and the second node.

[0268] - a list of non-access stratum message related information units or a list of non-access stratum packet data units, wherein

[0269] Contains non-access layer related operation requests or commands, etc.

[0270] The twelfth information may be included in an NGAP message, with a message name such as uplink group non-access layer transmission message, uplink group non-access layer transmission message, uplink class non-access layer transmission message, etc.; it may also be included in other existing or new NGAP messages.

[0271] It should be noted that the interface identifier list of the third node is associated with the list of non-access stratum message related information units or the list of non-access stratum packet data units, that is, the association between the interface identifier related information of the third node and its non-access stratum message related information units or non-access stratum packet data units is also explicitly or implicitly indicated by the twelfth information. A possible implementation method is that the interface identifier related information of the third node corresponds one-to-one with the non-access stratum message related information units or non-access stratum packet data units. In this way, after receiving the twelfth information, the first node can confirm or identify at least one third node in the third node group targeted by the twelfth information, as well as the non-access stratum message related information units or non-access stratum packet data units corresponding to each third node involved.

[0272] The first node confirms the corresponding ambient IoT related session and / or service according to the session identifier and / or service identifier.

[0273] The first node confirms or identifies the non-access stratum message related information unit or the non-access stratum packet data unit of at least one third node in the third node group sent by the second node according to the interface identification list of the third node.

[0274] In step 406, the first node may send thirteenth information to the second node. The thirteenth information is used to release the context of the group (eg, a group of third nodes).

[0275] The thirteenth information may include at least a session identifier and / or a service identifier of each third node group in at least one third node group, which is used to identify the session and / or service of the environmental Internet of Things.

[0276] The thirteenth information may be included in an NGAP message, with a message name such as group context release message, group context release command message, etc.; it may also be included in other existing or new NGAP messages.

[0277] The second node confirms the ambient Internet of Things related session and / or service that needs to be released according to the session identifier and / or service identifier.

[0278] In step 407, the second node may send fourteenth information to the third node. The fourteenth information includes information for providing a group of third nodes with information for releasing access stratum related information.

[0279] The fourteenth information may include at least a session identifier and / or a service identifier for identifying a session and / or service of an environmental Internet of Things that needs to be released; it may also include at least explicit or implicit indication information that the session and / or service of the environmental Internet of Things needs to be released. In this case, the third node confirms or identifies the corresponding environmental Internet of Things session and / or service by receiving the time domain resources and / or frequency domain resources of the fourteenth information. If the fourteenth information is received in the corresponding time domain resources and / or frequency domain resources, the third node believes that the relevant information of the corresponding environmental Internet of Things session and / or service needs to be released (such as the access network temporary identifier assigned by the second node to the third node).

[0280] The fourteenth information may be included in an RRC message, with a message name such as group release message, group RRC release message, etc.; it may also be included in an existing RRC message; it may also be included in the media access control control unit MAC CE, with a message name such as group release, session and / or service release, etc.; it may also be included in a downlink control indication DCI.

[0281] If the fourteenth information includes a session identifier and / or a service identifier, the third node confirms or identifies whether the session and / or service to be released matches the session and / or service being executed by the third node itself based on the session identifier and / or service identifier. If they do not match, no action is required; if they match, the third node releases the relevant information of the corresponding environmental Internet of Things session and / or service (such as the access network temporary identifier assigned to the third node by the second node).

[0282] Through the above method, it is ensured that relevant commands, operations or processing can be performed on a group of environmental Internet of Things devices at the same time between the core network and the access network, and it is also ensured that relevant commands, operations or processing can be performed on a group of environmental Internet of Things devices at the same time on the network side, thereby saving the number of signaling and / or overhead of the interface and / or air interface.

[0283] It should be understood that, depending on the application scenario, the various exemplary aspects, methods, steps, processes, etc. shown in the above-mentioned drawings can be implemented in combination in any manner, including implementing them in a different order as shown in the drawings or deleting one or more steps, etc., and this document does not impose any restrictions.

[0284] Next, Figure 4 A flow chart of a method 450 performed by a second node in a wireless communication system according to an embodiment of the present disclosure is shown.

[0285] like Figure 4 As shown, the method 450 performed by the second node in the wireless communication system according to the embodiment of the present disclosure may include: in step S451, receiving first information from the first node, wherein the first information includes: a first identifier associated with a session or service for an environmental Internet of Things and / or relevant information of a third node associated with the session or service for the environmental Internet of Things; and in step S452, sending second information to the third node, wherein the second information includes at least one of the following: the first identifier, relevant information of the third node associated with the session or service for the environmental Internet of Things, and a first value for random access.

[0286] According to an embodiment of the present disclosure, the first information further includes at least one of the following: a reason for triggering the sending of the first information; and area information associated with a session or service for the environmental Internet of Things.

[0287] According to an embodiment of the present disclosure, the second information also includes at least one of the following: a reason for triggering the sending of the second information; information related to a third frequency domain resource used for communication between the third node and the second node; and information related to a preamble code used for random access.

[0288] According to an embodiment of the present disclosure, the method further includes: sending fifth information to the third node, wherein the fifth information includes at least one of the following: information related to adjustment of the first value and the first identifier.

[0289] According to an embodiment of the present disclosure, the method also includes: after sending the second information to the third node, performing at least one of the following operations: sending third information to the third node, wherein the third information includes the first identifier, and wherein the third information is used by the third node to determine the time to send the preamble code.

[0290] According to an embodiment of the present disclosure, the method also includes: receiving fourth information from the third node, wherein the fourth information includes at least one of the following: a device identifier of the third node, a subscription hidden identifier of the third node, a permanent device identifier of the third node, and information indicating that the third node has a measurement report related to an environmental Internet of Things device that can be reported.

[0291] According to an embodiment of the present disclosure, the method also includes: receiving sixth information from the first node, wherein the sixth information includes: information for non-access stratum NAS, and information for instructing the second node to configure resources for the third node; and sending seventh information to the third node, wherein the seventh information includes: the information for NAS, and first time domain resource-related information and / or first frequency domain resource-related information used for communication between the third node and the second node.

[0292] According to an embodiment of the present disclosure, the method also includes: sending eighth information to the third node, wherein the eighth information includes at least one of the following: the first identifier, information for requesting application layer-related data and / or measurements of the third node, information related to second time domain resources for communication between the third node and the second node, and information related to second frequency domain resources for communication between the third node and the second node.

[0293] Figure 5 A flowchart of a method 500 performed by a third node in a wireless communication system according to an embodiment of the present disclosure is shown.

[0294] like Figure 5As shown, the method 500 performed by the third node in the wireless communication system according to the embodiment of the present disclosure may include: in step S501, receiving second information from the second node, wherein the second information includes at least one of the following: a first identifier associated with a session or service for the environmental Internet of Things, relevant information of the third node associated with the session or service for the environmental Internet of Things, and a first value for random access; in step S502, generating a second value based on the first value; and in step S503, performing random access based on the second value.

[0295] According to an embodiment of the present disclosure, the second information also includes at least one of the following: a reason for triggering the sending of the second information; information related to a third frequency domain resource used for communication between the third node and the second node; and information related to a preamble code used for random access.

[0296] According to an embodiment of the present disclosure, generating a second value based on the first value includes: generating the second value based on the first value when the second information includes the first value and it is determined that the third node belongs to a third node associated with a session or service for the ambient Internet of Things.

[0297] According to an embodiment of the present disclosure, the method also includes: receiving fifth information from the second node, wherein the fifth information includes at least one of the following: information related to adjustment of the first value, the first identifier; adjusting the first value based on the fifth information; and generating a new second value based on the adjusted first value.

[0298] According to an embodiment of the present disclosure, the method also includes: after receiving the second information from the second node, performing at least one of the following operations: receiving third information from the second node, wherein the third information includes the first identifier; and determining the time to send the preamble code based on the third information.

[0299] According to an embodiment of the present disclosure, determining the time to send a preamble code based on the third information includes: subtracting a preset value from the second value each time the third information is received, wherein the method also includes: sending a preamble code to the second node when the second value is reduced to zero.

[0300] According to an embodiment of the present disclosure, sending the preamble code to the second node includes: sending the preamble code on the corresponding frequency domain resources according to the frequency domain resource related information included in the second information.

[0301] According to an embodiment of the present disclosure, the method further includes: sending fourth information to the second node, wherein the fourth information includes at least one of the following: a device identifier of the third node, a subscription hidden identifier of the third node, a permanent device identifier of the third node, and information indicating that the third node has a measurement report related to an environmental Internet of Things device that can be reported.

[0302] According to an embodiment of the present disclosure, the method also includes: receiving eighth information from the second node, wherein the eighth information includes at least one of the following: the first identifier, information for requesting application layer-related data and / or measurements of the third node, information related to second time domain resources for communication between the third node and the second node, and information related to second frequency domain resources for communication between the third node and the second node.

[0303] According to an embodiment of the present disclosure, the method also includes: receiving seventh information from the second node, wherein the seventh information includes: information for non-access layer NAS, and first time domain resource-related information and / or first frequency domain resource-related information for communication between the third node and the second node.

[0304] According to an embodiment of the present disclosure, the method also includes: when the third node determines that it needs to respond to the first node in the non-access layer based on the seventh information, performing uplink information transmission based on the first time domain resource-related information and / or the first or third frequency domain resource-related information included in the seventh information.

[0305] According to an embodiment of the present disclosure, the method also includes: when the third node has application layer related data and / or measurements to be transmitted, performing transmission of the application layer related data and / or measurements based on at least one of the first or second time domain resource related information and the first or second or third frequency domain resource related information.

[0306] Figure 6 A flowchart of a method 600 performed by a first node in a wireless communication system according to an embodiment of the present disclosure is shown.

[0307] like Figure 6 As shown, the method 600 performed by the first node in the wireless communication system according to the embodiment of the present disclosure may include: in step S601, triggering a first process associated with a session or service for the environmental Internet of Things; and in step S602, sending first information to the second node, wherein the first information includes: a first identifier associated with the session or service for the environmental Internet of Things and / or relevant information of a third node associated with the session or service for the environmental Internet of Things.

[0308] According to an embodiment of the present disclosure, the first information further includes at least one of the following: a reason for triggering the sending of the first information; and area information associated with a session or service for the environmental Internet of Things.

[0309] According to an embodiment of the present disclosure, the method further includes: sending sixth information to the second node, wherein the sixth information includes: information for non-access stratum (NAS) and information for instructing the second node to configure resources for the third node.

[0310] Figure 7 A flowchart of a method 700 performed by a second node in a wireless communication system according to an embodiment of the present disclosure is shown.

[0311] like Figure 7 As shown, a method 700 performed by a second node in a wireless communication system according to an embodiment of the present disclosure may include: in step S701, sending ninth information to a first node, wherein the ninth information is used to request context establishment and / or modification for at least one third node group, each of the at least one third node group including at least one third node; and in step S702, receiving tenth information from the first node in response to the ninth information. In some embodiments, the ninth information includes at least one of the following: a first identifier associated with a session or service for an ambient IoT, a list of device identifiers of at least one third node included in each of the at least one third node group, a list of subscription-hidden identifiers of at least one third node included in each of the at least one third node group, a list of permanent device identifiers of at least one third node included in each of the at least one third node group, and a list of interface identifiers of at least one third node included in each of the at least one third node group. In some embodiments, the tenth information includes at least one of the following: the first identifier, and a list of interface identifiers of third nodes accepted by the first node.

[0312] According to an embodiment of the present disclosure, the method further includes: receiving eleventh information from the first node, wherein the eleventh information includes: the first identifier and non-access stratum NAS information for at least one of the received third nodes.

[0313] According to an embodiment of the present disclosure, the method further includes: sending twelfth information to the first node, wherein the twelfth information includes: the first identifier, a non-access layer message related information unit or a non-access layer packet data unit received from at least one of the receiving third nodes.

[0314] According to an embodiment of the present disclosure, the method also includes: receiving thirteenth information from the first node, wherein the thirteenth information includes information for releasing the context of at least one third node group; and sending fourteenth information to each third node in the at least one third node group, wherein the fourteenth information includes information for providing each third node in the at least one third node group with information for releasing access layer related information.

[0315] It should be understood that methods 450, 500, 600, and 700, etc. according to the embodiments of the present disclosure may also include one or more of the methods or steps described above in conjunction with any examples or figures, which will not be repeated here.

[0316] Next, Figure 8 A schematic diagram of a node 800 in a wireless communication system according to an embodiment of the present disclosure is shown.

[0317] like Figure 8 As shown, a node 800 according to an embodiment of the present disclosure (e.g., the first node, the second node, the third node, or any other network node as described above) may include a transceiver 810 and a processor 820. The transceiver 810 may be configured to send and receive signals. The processor 820 may be coupled to the transceiver 810 and may be configured to (e.g., control the transceiver 810) execute any method performed by a node in a wireless communication system according to an embodiment of the present disclosure. In this document, a processor may also be referred to as a controller. In this document, a node may also be referred to as a node device.

[0318] Various embodiments of the present disclosure can be implemented as computer-readable codes embodied on a computer-readable recording medium from a specific perspective. A computer-readable recording medium is any data storage device that can store data readable by a computer system. Examples of computer-readable recording media may include read-only memory (ROM), random access memory (RAM), compact disc read-only memory (CD-ROM), magnetic tape, floppy disk, optical data storage device, carrier wave (e.g., data transmission via the Internet), and the like. Computer-readable recording media can be distributed by computer systems connected via a network, and therefore computer-readable codes can be stored and executed in a distributed manner. Moreover, the functional programs, codes, and code segments for implementing the various embodiments of the present disclosure can be easily interpreted by those skilled in the art in the field of applying the embodiments of the present disclosure.

[0319] It will be understood that the embodiments of the present disclosure can be implemented in the form of hardware, software, or a combination of hardware and software. Software can be stored as program instructions or computer-readable code executable on a processor on a non-transient computer-readable medium. Examples of non-transient computer-readable recording media include magnetic storage media (e.g., ROM, floppy disk, hard disk, etc.) and optical recording media (e.g., CD-ROM, digital video disk (DVD), etc.). Non-transient computer-readable recording media can also be distributed on network-coupled computer systems so that computer-readable code is stored and executed in a distributed manner. The medium can be read by a computer, stored in a memory, and executed by a processor. Various embodiments can be implemented by a computer or a portable terminal including a controller and a memory, and the memory can be an example of a non-transient computer-readable recording medium suitable for storing (multiple) programs with instructions for implementing the embodiments of the present disclosure. The present disclosure can be implemented by a program having a code for specifically implementing the apparatus and method described in the claims, the program being stored in a machine (or computer) readable storage medium. The program can be electronically carried on any medium, such as a communication signal transmitted via a wired or wireless connection, and the present disclosure suitably includes its equivalents.

[0320] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any person skilled in the art may make various changes or substitutions within the technical scope disclosed in the present disclosure, and such changes or substitutions shall be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure shall be subject to the scope of protection of the claims.

Claims

1. A method performed by a second node in a wireless communication system, comprising: Receiving first information from a first node, wherein the first information includes: a first identifier associated with a session or service for an ambient Internet of Things and / or related information of a third node associated with the session or service for the ambient Internet of Things; and Second information is sent to the third node, where the second information includes at least one of the following: the first identifier, relevant information of the third node associated with the session or service for the ambient Internet of Things, and a first value for random access.

2. The method according to claim 1, wherein The first information further includes at least one of the following: a reason for triggering the sending of the first information; The region information associated with the session or service for the ambient IoT.

3. A method performed by a third node in a wireless communication system, comprising: Receiving second information from the second node, wherein the second information includes at least one of the following: a first identifier associated with a session or service for the ambient Internet of Things, relevant information of a third node associated with the session or service for the ambient Internet of Things, and a first value for random access; generating a second value based on the first value; and Random access is performed based on the second value.

4. The method according to claim 3, wherein: The second information further includes at least one of the following: a reason for triggering the sending of the second information; information related to a third frequency domain resource used for communication between the third node and the second node; Information related to the preamble used for random access.

5. The method according to claim 3, further comprising: receiving fifth information from the second node, wherein the fifth information includes at least one of the following: information related to adjustment of the first value and the first identifier; adjusting the first value based on the fifth information; and A new second value is generated based on the adjusted first value.

6. The method according to claim 3, further comprising: After receiving the second information from the second node, perform at least one of the following operations: receiving third information from the second node, wherein the third information includes the first identifier; and A time for sending the preamble is determined based on the third information.

7. The method according to claim 6, wherein: Determining the time to send the preamble based on the third information includes: Each time the third information is received, a preset value is subtracted from the second value. The method further comprises: When the second value decreases to zero, a preamble is sent to the second node.

8. The method according to claim 7, wherein: Sending the preamble to the second node includes: The preamble code is sent on the corresponding frequency domain resources according to the frequency domain resource related information included in the second information.

9. The method according to claim 3, further comprising: Sending fourth information to the second node, where the fourth information includes at least one of the following: The device identifier of the third node, the subscription hidden identifier of the third node, the permanent device identifier of the third node, and information indicating that the third node has a measurement report related to the environmental Internet of Things device that can be reported.

10. The method according to claim 3, further comprising: receiving eighth information from the second node, wherein the eighth information includes at least one of the following: The first identifier, information for requesting application layer related data and / or measurement of the third node, information related to second time domain resources used for communication between the third node and the second node, and information related to second frequency domain resources used for communication between the third node and the second node.

11. The method according to claim 3, further comprising: Seventh information is received from the second node, where the seventh information includes: information for a non-access stratum (NAS), and first time domain resource-related information and / or first frequency domain resource-related information used for communication between the third node and the second node.

12. The method according to claim 11, further comprising: When the third node determines that it needs to respond to the first node in the non-access layer based on the seventh information, uplink information transmission is performed based on the first time domain resource related information and / or the first or third frequency domain resource related information included in the seventh information.

13. The method according to claim 10, further comprising: In a case where the third node has application layer related data and / or measurements to be transmitted, the transmission of the application layer related data and / or measurements is performed based on at least one of the first or second time domain resource related information and the first or second or third frequency domain resource related information.

14. A method performed by a first node in a wireless communication system, comprising: triggering a first process associated with a session or service for an ambient Internet of Things; as well as First information is sent to the second node, wherein the first information includes: a first identifier associated with the session or service for the ambient Internet of Things and / or relevant information of a third node associated with the session or service for the ambient Internet of Things.

15. The method according to claim 14, further comprising: Sending sixth information to the second node, where the sixth information includes: information for a non-access stratum (NAS) and information for instructing the second node to configure resources for the third node.

16. A method performed by a second node in a wireless communication system, comprising: Sending ninth information to the first node, wherein the ninth information is used to request context establishment and / or modification of at least one third node group, each of the at least one third node group including at least one third node; and receiving, from the first node, tenth information in response to the ninth information, The ninth information includes at least one of the following: a first identifier of each of the at least one third node group in the at least one third node group associated with a session or service for the ambient Internet of Things, a list of device identifiers of at least one third node included in each of the at least one third node group, a list of subscription hidden identifiers of at least one third node included in each of the at least one third node group, a list of permanent device identifiers of at least one third node included in each of the at least one third node group, and a list of interface identifiers of at least one third node included in each of the at least one third node group; and The tenth information includes at least one of the following: The first identifier of each third node group in the at least one third node group, and a list of interface identifiers of third nodes accepted by the first node included in each third node group in the at least one third node group.

17. The method according to claim 16, further comprising: Receive eleventh information from the first node, wherein the eleventh information includes: the first identifier and non-access stratum (NAS) information for at least one of the received third nodes.

18. The method according to claim 16, further comprising: Twelfth information is sent to the first node, where the twelfth information includes: the first identifier, a non-access layer message related information unit or a non-access layer packet data unit received from at least one of the receiving third nodes.

19. The method according to claim 16, further comprising: receiving thirteenth information from the first node, wherein the thirteenth information includes information for releasing a context of at least one third node group; and Fourteenth information is sent to each third node in the at least one third node group, wherein the fourteenth information includes information for providing each third node in the at least one third node group with information for releasing access layer related information.

20. A node device in a wireless communication system, comprising: a transceiver configured to transmit and receive signals; as well as A controller is coupled to the transceiver and configured to perform the method according to any one of claims 1 to 19.

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