Method and apparatus for transmission based on ambient internet of things in a wireless communication system

Abstract

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. The present disclosure provides a node in a wireless communication system and methods performed by the same. A method performed by a second node in a wireless communication system includes: receiving first information from a first node, wherein the first information includes a first identification 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 transmitting second information to a third node, wherein the second information includes at least one of: the first identification, related information of the third node associated with the session or service for the Ambient Internet of Things, and a first value for random access.

Description

METHOD AND APPARATUS FOR TRANSMISSION BASED ON AMBIENT INTERNET OF THINGS IN A WIRELESS COMMUNICATION SYSTEM

[0001] The present disclosure relates to a technical field of wireless communication, and more specifically, to method and apparatus for transmission based on ambient internet of things (IoT) in a wireless communication system.

[0002] 5G mobile communication technologies define broad frequency bands such that high transmission rates and new services are possible, and can be implemented not only in “Sub 6GHz” bands such as 3.5GHz, but also in “Above 6GHz” bands referred to as mmWave including 28GHz and 39GHz. In addition, it has been considered to implement 6G mobile communication technologies (referred to as Beyond 5G systems) in terahertz (THz) bands (for example, 95GHz to 3THz bands) in order to accomplish transmission rates fifty times faster than 5G mobile communication technologies and ultra-low latencies one-tenth of 5G mobile communication technologies.

[0003] At the beginning of the development of 5G mobile communication technologies, in order to support services and to satisfy performance requirements in connection with enhanced Mobile BroadBand (eMBB), Ultra Reliable Low Latency Communications (URLLC), and massive Machine-Type Communications (mMTC), there has been ongoing standardization regarding beamforming and massive MIMO for mitigating radio-wave path loss and increasing radio-wave transmission distances in mmWave, supporting numerologies (for example, operating multiple subcarrier spacings) for efficiently utilizing mmWave resources and dynamic operation of slot formats, initial access technologies for supporting multi-beam transmission and broadbands, definition and operation of BWP (BandWidth Part), new channel coding methods such as a LDPC (Low Density Parity Check) code for large amount of data transmission and a polar code for highly reliable transmission of control information, L2 pre-processing, and network slicing for providing a dedicated network specialized to a specific service.

[0004] Currently, there are ongoing discussions regarding improvement and performance enhancement of initial 5G mobile communication technologies in view of services to be supported by 5G mobile communication technologies, and there has been physical layer standardization regarding technologies such as V2X (Vehicle-to-everything) for aiding driving determination by autonomous vehicles based on information regarding positions and states of vehicles transmitted by the vehicles and for enhancing user convenience, NR-U (New Radio Unlicensed) aimed at system operations conforming to various regulation-related requirements in unlicensed bands, NR UE Power Saving, Non-Terrestrial Network (NTN) which is UE-satellite direct communication for providing coverage in an area in which communication with terrestrial networks is unavailable, and positioning.

[0005] Moreover, there has been ongoing standardization in air interface architecture / protocol regarding technologies such as Industrial Internet of Things (IIoT) for supporting new services through interworking and convergence with other industries, IAB (Integrated Access and Backhaul) for providing a node for network service area expansion by supporting a wireless backhaul link and an access link in an integrated manner, mobility enhancement including conditional handover and DAPS (Dual Active Protocol Stack) handover, and two-step random access for simplifying random access procedures (2-step RACH for NR). There also has been ongoing standardization in system architecture / service regarding a 5G baseline architecture (for example, service based architecture or service based interface) for combining Network Functions Virtualization (NFV) and Software-Defined Networking (SDN) technologies, and Mobile Edge Computing (MEC) for receiving services based on UE positions.

[0006] As 5G mobile communication systems are commercialized, connected devices that have been exponentially increasing will be connected to communication networks, and it is accordingly expected that enhanced functions and performances of 5G mobile communication systems and integrated operations of connected devices will be necessary. To this end, new research is scheduled in connection with eXtended Reality (XR) for efficiently supporting AR (Augmented Reality), VR (Virtual Reality), MR (Mixed Reality) and the like, 5G performance improvement and complexity reduction by utilizing Artificial Intelligence (AI) and Machine Learning (ML), AI service support, metaverse service support, and drone communication.

[0007] Furthermore, such development of 5G mobile communication systems will serve as a basis for developing not only new waveforms for providing coverage in terahertz bands of 6G mobile communication technologies, multi-antenna transmission technologies such as Full Dimensional MIMO (FD-MIMO), array antennas and large-scale antennas, metamaterial-based lenses and antennas for improving coverage of terahertz band signals, high-dimensional space multiplexing technology using OAM (Orbital Angular Momentum), and RIS (Reconfigurable Intelligent Surface), but also full-duplex technology for increasing frequency efficiency of 6G mobile communication technologies and improving system networks, AI-based communication technology for implementing system optimization by utilizing satellites and AI (Artificial Intelligence) from the design stage and internalizing end-to-end AI support functions, and next-generation distributed computing technology for implementing services at levels of complexity exceeding the limit of UE operation capability by utilizing ultra-high-performance communication and computing resources.

[0008] The present disclosure relates to method and apparatus for transmission based on ambient internet of things (IoT) in a wireless communication system.

[0009] According to an aspect of an exemplary embodiment, there is provided a communication method in a wireless communication system.

[0010] Aspects of the present disclosure provide efficient communication methods in a wireless communication system.

[0011] The above and other aspects, features and advantages of certain embodiments of the present disclosure will be more apparent from the following description taken in conjunction with the accompanying drawings, in which:

[0012] FIG. 1 illustrates an exemplary system architecture 100 of system architecture evolution (SAE);

[0013] FIG. 2A illustrates an example structure of a base station according to embodiments of the present disclosure;

[0014] FIG. 2B illustrates an example structure of a base station according to embodiments of the present disclosure;

[0015] FIG. 2C illustrates an example structure of a base station according to embodiments of the present disclosure;

[0016] FIG. 3A illustrates an example method for A-IoT signaling or data transmission according to embodiments of the present disclosure;

[0017] FIG. 3B illustrates an example method for A-IoT signaling or data transmission according to embodiments of the present disclosure;

[0018] FIG. 4 illustrates a flowchart of a method 450 performed by a second node in a wireless communication system according to embodiments of the present disclosure;

[0019] FIG. 5 illustrates a flowchart of a method 500 performed by a third node in a wireless communication system according to embodiments of the present disclosure;

[0020] FIG. 6 illustrates a flowchart of a method 600 performed by a first node in a wireless communication system according to embodiments of the present disclosure;

[0021] FIG. 7 illustrates a flowchart of a method 700 performed by a second node in a wireless communication system according to embodiments of the present disclosure;

[0022] FIG. 8 illustrates a schematic diagram of a node 800 in a wireless communication system according to embodiments of the present disclosure;

[0023] FIG. 9 illustrates the configuration of a UE in a wireless communication system according to various embodiments; and

[0024] FIG. 10 illustrates the configuration of a base station or a network entity in a wireless communication system according to various embodiments.

[0025] The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of various embodiments of the present disclosure as defined by the claims and their equivalents. It includes various specific details to assist in that understanding but these are to be regarded as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the various embodiments described herein can be made without departing from the scope and spirit of the present disclosure. In addition, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.

[0026] The terms and words used in the following description and claims are not limited to the bibliographical meanings, but, are merely used by the inventor to enable a clear and consistent understanding of the present disclosure. Accordingly, 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 purpose only and not for the purpose of limiting the present disclosure as defined by the appended claims and their equivalents.

[0027] It is to 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.

[0028] The term “include” or “may include” refers to the existence of a corresponding disclosed function, operation or component which can be used in various embodiments of the present disclosure and does not limit one or more additional functions, operations, or components. The terms such as “include” and / or “have” may be construed to denote a certain characteristic, number, step, operation, constituent element, component or a combination thereof, but may not be construed to exclude the existence of or a possibility of addition of one or more other characteristics, numbers, steps, operations, constituent elements, components or combinations thereof.

[0029] The term “or” used in various embodiments of the present disclosure includes any or all of combinations of listed words. For example, the expression “A or B” may include A, may include B, or may include both A and B.

[0030] Unless defined differently, all terms used herein, which include technical terminologies or scientific terminologies, have the same meaning as that understood by a person skilled in the art to which the present disclosure belongs. Such terms as those defined in a generally used dictionary are to be interpreted to have the meanings equal to the contextual meanings in the relevant field of art, and are not to be interpreted to have ideal or excessively formal meanings unless clearly defined in the present disclosure.

[0031] The drawings discussed below and various embodiments for describing the principles of the present disclosure in this patent document are only for illustration and should not be interpreted as limiting the scope of the present disclosure in any way. Those skilled in the art will understand that the principles of the present disclosure can be implemented in any suitably arranged system or device.

[0032] In order to meet an increasing demand for wireless data communication services since a deployment of 4G communication system, efforts have been made to develop an improved 5G or pre-5G communication system. Therefore, the 5G or pre-5G communication system is also called “beyond 4G network” or “post LTE system”.

[0033] Wireless communication is one of the most successful innovations in modern history. Recently, a number of subscribers of wireless communication services has exceeded 5 billion, and it continues growing rapidly. With the increasing popularity of smart phones and other mobile data devices (such as tablet computers, notebook computers, netbooks, e-book readers and machine-type devices) in consumers and enterprises, a demand for wireless data services is growing rapidly. In order to meet rapid growth of mobile data services and support new applications and deployments, it is very important to improve efficiency and coverage of wireless interfaces.

[0034] With the gradual maturity of the 5G commercial network (NR (New Radio) access network), the research and standardization of an Ambient Internet of Things (A-IoT) technology has been launched.

[0035] FIG. 1 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 for receiving data. A next generation radio access network (NG-RAN) 202 is a radio access network, which includes a base station (a gNB or an eNB connected to 5G core network 5GC, and the eNB connected to the 5GC is also called ng-gNB) that provides UE with interfaces to access the radio network. An access control and mobility management function entity (AMF) 203 is responsible for managing mobility context and security information of the UE. A user plane function entity (UPF) 204 mainly provides functions of user plane. A session management function entity SMF 205 is responsible for session management. A data network (DN) 206 includes, for example, services of operators, access of Internet and service of third parties.

[0036] In an NR system, in order to support network function virtualization and more efficient resource management and scheduling, a base station (gNB / ng-eNB) that provides wireless network interfaces for terminals (UEs) may 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)) (abbreviated as CU and DU in the present disclosure), as shown in FIG. 2A. gNB-CU has radio resource control (RRC), Service Data Adaptation Protocol (SDAP) and Packet Data Convergence Protocol (PDCP) protocol layers, while ng-eNB-CU has RRC and PDCP layers. gNB-DU / ng-eNB-DU has Radio Link Control (RLC) protocol, Media Access Control (MAC) and physical (PHY) layers. 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 a control plane F1-C and a user plane F1-U. The transport network layer of F1-C is based on IP transport. In order to transmit signaling more reliably, stream control transmission protocol (SCTP) protocol is added onto IP. The protocol of the application layer is F1 Application Protocol (F1AP). SCTP can provide reliable application layer message transmission. The transport layer of F1-U is UDP / IP, and the GPRS tunneling protocol-user plane (GTP-U) is used to carry the user plane protocol data unit (PDU) above UDP / IP. Further, for a gNB-CU, as shown in FIG. 2B, the gNB-CU may include a gNB-CU-CP (control plane part of a centralized unit of a base station) and a gNB-CU-UP (user plane part of a centralized unit of a base station), a gNB-CU-CP contains functions of a control plane of a base station and has RRC and SDAP protocol layers, and a gNB-CU-UP contains functions of a user plane of a base station and has SDAP and PDCP protocol layers. There is a standardized public interface E1 between gNB-CU-CP and gNB-CU-UP, and the protocol is E1 Application Protocol (E1AP). The interface between the control plane part of the centralized unit of the base station and the distributed unit of the base station is an F1-C interface, that is, the control plane interface of F1, and the interface between the user plane part of the centralized unit of the base station and the distributed unit of the base station is an F1-U interface, that is, the user plane interface of F1. In addition, in the NR system, a base station providing the E-UTRA user plane and control plane which accessed a 5G core network is called ng-eNB. In order to support virtualization, such a base station (ng-eNB) may 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 the present disclosure), as shown in FIG. 2C. ng-eNB-CU has RRC and PDCP layers. gNB-DU / ng-eNB-DU has radio link control (RLC) protocol, media access control (MAC) and physical layer. There is a standardized public interface W1 between ng-eNB-CU and ng-eNB-DU. The W1 interface is divided into a control plane W1-C and a user plane W1-U. The transport network layer of W1-C is based on IP transport. In order to transmit signaling more reliably, SCTP protocol is added onto IP. The protocol of the application layer is W1 Application Protocol (W1AP). The transport layer of W1-U is UDP / IP, and GTP-U is used to carry user plane protocol data unit (PDU) above UDP / IP.

[0037] At present, the technology of Ambient Internet of Things is just in the initial stage of research. The present disclosure mainly relates to A-IoT signaling or data transmission.

[0038] Exemplary embodiments of the present disclosure are further described below with reference to the accompanying drawings.

[0039] The text and drawings are provided as examples only to help understand 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, based on the disclosure herein, it is apparent to those skilled in the art that changes can be made to the illustrated embodiments and examples without departing from the scope of the present disclosure.

[0040] Before introducing the specific content, some assumptions and some definitions of the present disclosure are given below.

[0041] The message names in the present disclosure are just examples, and other message names may be used.

[0042] The "first" and "second" included in the message names in the present disclosure are only examples, and they do not represent an execution order.

[0043] A detailed description of steps irrelevant to the present disclosure is omitted in the present disclosure.

[0044] In the present disclosure, steps in various processes / procedures may be combined with each other or performed independently. Execution steps of each process / procedure are only examples, and other possible execution orders are not excluded.

[0045] In the present disclosure, the 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.

[0046] In the present disclosure, the transmission of data refers to the reception or transmission of data.

[0047] In some implementations, nodes involved in the present disclosure may be that:

[0048] a first node, which may be a core network or an Access and Mobility Management Function (AMF) function, etc.

[0049] a second node, which may be a base station, a centralized unit of the base station, a distributed unit of the base station, a control plane part of the centralized unit of the base station, a user plane part of the centralized unit of the base station, etc.

[0050] a third node, which may be an Ambient Internet of Things (A-IoT) device or other terminal or user equipment or device, etc.

[0051] In the present disclosure, “report” may be used interchangeably with “data”, “measurement”, “measurement data”, “measurement report”, “measurement result”, etc.

[0052] Herein, “group”, “class” or “set” may be used interchangeably, and will be described below as “set” as an example. Herein, depending on the context, a group or class of A-IoT devices may also be called a set of A-IoT devices, or an A-IoT device group or an A-IoT device class or an A-IoT device set. At least one A-IoT device may be included in each A-IoT device group or A-IoT device class or A-IoT device set. Herein, a group or a class or a set of A-IoT devices may also refer to at least one group or at least one class or at least one set of A-IoT devices. In addition, herein, the A-IoT device may also be called a third node.

[0053] The present disclosure provides a method for A-IoT signaling or data transmission, which ensures that A-IoT devices can transmit signaling or data on appropriate resources by means of interaction / coordination between nodes.

[0054] The schemes for A-IoT signaling or data transmission of the present disclosure may include the flows described below in connection with FIGs. 3A and 3B, etc.

[0055] FIG. 3A shows an example method for A-IoT signaling or data transmission according to embodiments of the present disclosure. As shown in FIG. 3A:

[0056] Step 301 (further, steps 301-1 and 301-2 may be included): the first node triggers an A-IoT related process / procedure (herein, it may also be called a first process / procedure associated with a session or service for A-IoT), which may be used to initiate a paging to A-IoT devices, and / or may be used to search or look up or inventory A-IoT devices, and / or may be used to request or indicate A-IoT devices to report sensor data. In some implementations, the first node transmits first information to the second node.

[0057] In some implementations, the first information may include at least one of the following information:

[0058] - Session identification and / or service identification (ID), which is used to identify a session and / or service for A-IoT. It may also be referred to herein as a first identification associated with the session and / or service for A-IoT.

[0059] - Request or indication or paging cause / reason, which is used to indicate the cause / reason for triggering the A-IoT related process / procedure or the cause / reason for triggering the transmitting of the first information. For example, it may indicate that the cause / reason for triggering the process / procedure is to inventory, or for another example, it may indicate that the cause / reason for triggering the process / procedure is to report sensor data and / or measurement.

[0060] - Service area or paging area, which is used to describe area-related information related to or corresponding to the A-IoT related process / procedure. It may also be referred to herein as area information associated with a session and / or service for A-IoT.

[0061] - Set-related information, which is used to describe a set of A-IoT devices. Herein, it may also be referred to as related information of A-IoT devices corresponding to the first process / procedure, or related information of A-IoT devices or third nodes associated with a session or service for A-IoT.

[0062] In some implementations, the first node may transmit different corresponding first information to the second node with respect to different session IDs and / or service IDs. That is, in some implementations, the first node may transmit one or more different first information corresponding to one or more different session IDs and / or service IDs respectively to the second node.

[0063] In some implementations, the Service area or paging area may include at least one of the following information:

[0064] - Tracking Area ID or Tracking Area ID list

[0065] - Tracking Area code or Tracking Area code list

[0066] - Physical Cell ID or Physical Cell ID list

[0067] - Global Cell ID or Global Cell ID list

[0068] In some implementations, the set-related information may include at least one of the following information:

[0069] - A mask, which is used for representing information related to a bit string or a data string that is used to match with a part or all of the A-IoT device ID or stored data.

[0070] - A mask pointer, which is used to indicate a starting position of the matching.

[0071] - A set ID, which is used to identify the set to which an A-IoT device belongs.

[0072] The first information may be included in an NG interface Application Protocol (NGAP) message, and the message name thereof may be such as set paging message, group paging message, class paging message, etc. It may also be included in an existing NGAP message.

[0073] The second node determines the A-IoT related session and / or service initiated by the first node according to the session ID and / or service ID.

[0074] The second node determines the cause / reason for triggering the A-IoT related process / procedure according to the request or indication or paging cause / reason.

[0075] The second node determines the area related to the corresponding A-IoT related service, and / or the area where the second node needs to page the A-IoT devices according to the Service area or paging area.

[0076] The second node determines a set of A-IoT devices that need to be served and / or paged according to the set-related information.

[0077] Optionally, a possible implementation is that if the first information does not include the set-related information, the second node would consider that all A-IoT devices within the Service area or paging area belong to the A-IoT devices to be served and / or looked up and / or searched and / or paged.

[0078] Step 302: after receiving the first information, the second node transmits second information to the third node according to the content of the first information. The second information may be used to initiate a paging to the A-IoT devices, and / or may be used to search or look up or inventory the A-IoT devices, and / or may be used to request or indicate the A-IoT devices to report sensor data.

[0079] In some implementations, the second information may include at least one of the following information:

[0080] - Session identification and / or service identification (ID), which is used to identify a session and / or service for A-IoT.

[0081] - Request or indication or paging cause / reason, which is used to indicate the cause / reason for triggering the A-IoT related process / procedure. For example, it may indicate that the cause / reason for triggering the process / procedure is to inventory, or for another example, it may indicate that the cause / reason for triggering the process / procedure is to report sensor data and / or measurement. Here, the cause / reason may also be called a cause / reason that triggers the second node to transmit the second information.

[0082] - Set (or group)-related information, which is used to describe a set of A-IoT devices. Here, it may also be referred to as related information of A-IoT devices associated with the second information.

[0083] - A first value, which may be a value used for random access. For example, the first value may be used for an A-IoT device to generate a second value related to the first value for the A-IoT device to perform random access.

[0084] - Frequency domain related information (also referred to herein as third frequency domain resource related information for communication between the third node and the second node), which is used to provide the A-IoT device with frequency domain resources to be used in subsequent communication with the second node.

[0085] - A preamble related information list (which may also be referred to as information related to preamble for random access herein), which is used for the A-IoT device to determine the preamble related information to be used in subsequent communication with the second node.

[0086] In some implementations, the second node may transmit different corresponding second information to the third node with respect to different session IDs and / or service IDs. That is, in some implementations, the second node may transmit one or more different second information corresponding to one or more different session IDs and / or service IDs respectively to the third node.

[0087] In some implementations, the set-related information may include at least one of the following information:

[0088] - A mask, which is used for representing information related to a bit string or a data string that is used to match with a part or all of the A-IoT device ID or stored data.

[0089] - A mask pointer, which is used to indicate a starting position of the matching.

[0090] - A set ID, which is used to identify the set to which an A-IoT device belongs.

[0091] In some implementations, the frequency domain related information may include at least one of the following information:

[0092] - Bandwidth information

[0093] - Frequency domain starting point information

[0094] - Frequency information

[0095] In some implementations, the preamble related information list may include one or more preamble-related IDs or indexes.

[0096] The second information may be included in a radio resource control (RRC) message, and the message name thereof may be such as set paging message, group paging message, class paging message, etc. It may also be included in an existing RRC message. It may also be included in a media access control (MAC) control element (CE), and the message name thereof may be such as inventory request, search request, look up request, etc. It may also be included in a downlink control indication (DCI).

[0097] The third node determines the A-IoT related session and / or service according to the session ID and / or service ID.

[0098] The third node determines the cause / reason for triggering the A-IoT related process / procedure according to the request or indication or paging cause / reason.

[0099] The third node determines whether it belongs to the set of A-IoT devices to be served and / or looked up and / or searched and / or paged according to the set-related information.

[0100] Optionally, a possible implementation is that if the second information does not include the set-related information, the third node may determine that it belongs to the A-IoT device to be served and / or looked up and / or searched and / or paged.

[0101] As to how the third node determines whether it belongs to the set of A-IoT devices to be served and / or looked up and / or searched and / or paged, one possible implementation is that the third node performs determination according to the set ID included in the second information. That is, set ID information corresponding to the set to which the third node belongs will be pre-configured and / or stored in the third node, and after receiving the second information, the third node judges / confirms / determines / verifies whether the set ID included in the second information is also included in the pre-configured and / or stored set ID information according to the set ID included in the second information. If it is included, the third node can determine that it belongs to the set of A-IoT devices to be served and / or looked up and / or searched and / or paged; and if it is not included, the third node can determine that it does not belong to the set of A-IoT devices to be served and / or looked up and / or searched and / or paged.

[0102] Another possible implementation is that the third node performs determination according to the mask and / or the mask pointer included in the second information. The third node's A-IoT device ID or stored data will be pre-configured and / or stored in the third node. When the third node receives the second information, it compares the mask included in the second information with the pre-configured and / or stored A-IoT device ID or stored data. If the second information does not include a mask pointer, then the third node will perform comparation with the mask from the Most Significant Bit (MSB) or Least Significant Bit (LSB) of the A-IoT device ID or stored data; and if the second information includes a mask pointer, the third node will perform comparation with the mask from a corresponding address or location or bit in the A-IoT device ID or stored data pointed or indicated by the mask pointer. If the third node finds that the information matches after the comparison, it performs response or perform subsequent operations or initiates subsequent processes / procedures, that is, interacts / coordinates with the second node subsequently. If the information does not match, it does not perform response or perform subsequent operations or initiate subsequent processes / procedures, that is, it does not interact / coordinate with the second node for the second information subsequently.

[0103] The third node determines frequency domain resources to be used in subsequent communication with the second node according to the frequency domain related information.

[0104] The third node determines preamble related information to be used in subsequent communication with the second node according to the preamble related information list.

[0105] Step 303: after receiving the second information, the third node judges / confirms / determines / verifies whether it belongs to the set of A-IoT devices to be served and / or looked up and / or searched and / or paged according to the content of the second information. If it belongs thereto, the third node generates a second value according to the first value included in the second information, and stores the second value.

[0106] As to how the third node generates the second value according to the first value, one possible implementation is that the second value is a random value generated according to the first value. Specifically, the second value is a random integer with a value ranging from 0 to 2^(the first value) and inclusive. Herein, ^ is an exponent sign. For example, in this implementation, assuming that the first value is 10, the second value may be a random integer greater than or equal to 0 and less than or equal to 1024 (2^10).

[0107] Another possible implementation is that the second value is a random integer with a value ranging from 0 to {2^(the first value) - 1} and inclusive. It should be understood that the above-mentioned possible implementations are only examples, and depending on the actual application scenario, the second value may also be a random value generated according to the first value in any other specific rule or manner, which is not limited herein. Other values described herein are similar.

[0108] Step 304a: optionally, the second node may transmit fifth information to the third node. The fifth information may be used to adjust the first value.

[0109] In some implementations, the fifth information may include at least one of the following information:

[0110] - Session ID and / or service ID, which is used to identify a session and / or service for A-IoT.

[0111] - Information related to the adjustment of the first value.

[0112] In some implementations, the second node may transmit different corresponding fifth information to the third node with respect to different session IDs and / or service IDs. That is, in some implementations, the second node may transmit one or more different fifth information corresponding to one or more different session IDs and / or service IDs respectively to the third node. In addition, the second node may also transmit multiple pieces of fifth information to the third node for the same session ID and / or service ID, that is, to adjust the first value for multiple times.

[0113] Herein, as for the information related to the adjustment of the first value, one possible implementation is that the information related to the adjustment of the first value includes an adjusted first value; another possible implementation is that the information related to the adjustment of the first value includes information related to a difference between an adjusted first value and the original first value; another possible implementation is that 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 (for example, the x-th bit means that the adjusted first value is equal to the original first value minus a preset / default value (for example, one), the y-th bit means that the adjusted first value is equal to the original first value, and the z-th bit means that the adjusted first value is equal to the original first value plus a preset / default value (for example, one), etc.).

[0114] The fifth information may be included in a radio resource control (RRC) message, and the message name thereof may be such as set paging adjustment message, group paging adjustment message, class paging adjustment message, set adjustment message, group adjustment message, class adjustment message, etc. It may also be included in the existing RRC message. It may also be included in a media access control (MAC) control element (CE), and the message name thereof may be such as inventory adjustment, search adjustment, look up adjustment, etc. It may also be included in a downlink control indication (DCI).

[0115] The third node identifies the corresponding A-IoT related session and / or service according to the session ID and / or service ID. If the third node has determined that it belongs to the set of A-IoT devices to be served and / or looked up and / or searched and / or paged according to the second information, and the session ID and / or service ID included in the fifth information received by the third node (also referred to as a second session ID and / or second service ID herein) matches with the session ID and / or service ID included in the second information received before (also referred to as a first session ID and / or first service ID herein), then when the third node receives the fifth information in which the session ID and / or service ID matches with the second information, it determines an adjusted first value according to the information related to the adjustment of the first value included in the fifth information, generates a second value based on the adjusted first value, and stores the second value. One possible implementation is that the second value is a random value generated according to the adjusted first value. Specifically, the second value is a random integer with a value ranging from 0 to 2^(the adjusted first value) and inclusive.

[0116] Step 304 (for example, steps 304-1 and 304-2 may be further included): after transmitting the second information or the fifth information, the second node will transmit at least one piece of third information to the third node. The third information may be used for the third node to decide a time point / instance of subsequent communication with the second node. In the text, “time point / instance” may also be used interchangeably with “time”.

[0117] In some implementations, the third information may at least include a session ID and / or service ID, which is used to identify a session and / or service for A-IoT.

[0118] The third information may be included in a radio resource control (RRC) message, and the message name thereof may be such as set paging repetition message, group paging repetition message, class paging repetition message, set 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 a media access control (MAC) control element (CE), and the message name thereof may be such as inventory repetition, search repetition, look up repetition, etc. It may also be included in a downlink control indication (DCI).

[0119] The third node identifies the corresponding A-IoT related session and / or service according to the session ID and / or service ID. If the third node has determined that it belongs to the set of A-IoT devices to be served and / or looked up and / or searched and / or paged according to the second information, and the session ID and / or service ID included in the third information received by the third node (also referred to as a third session ID and / or third service ID herein) matches with the session ID and / or service ID included in the second information received before (also referred to as a first session ID and / or first service ID herein), then the third node subtracts the stored second value by a preset / default value (for example, one, which will be taken as an example for the exemplary descriptions below) every time it receives a piece of third information in which the session ID and / or service ID matches with the second information. If the subtracted value is not zero, the subtracted value is stored as a new second value. If the subtracted value is zero, the third node selects a preamble based on the preamble related information list included in the second information, and the third node transmits the selected preamble on the corresponding frequency domain resources based on the frequency domain related information included in the second information.

[0120] It should be noted that step 304a and step 304 are not in a strict sequential order. For example, unlike that shown in the drawings, step 304 (304-1 and / or 304-2) may be performed before step 304a.

[0121] Step 305: the third node transmits the selected preamble to the second node according to the frequency domain related information included in the second information.

[0122] Step 306: after receiving the preamble, the second node transmits a random access response to the third node. In some implementations, the random access response includes at least one of the following information:

[0123] - A third value, which is used for the A-IoT device when it determines to perform a back-off related operation.

[0124] - A preamble identification (ID).

[0125] - A temporary radio network temporary identifier, which is used to provide an access network identifier used when communicating with the second node during random access to the A-IoT device.

[0126] - Frequency domain related information, which is used to provide the A-IoT device with frequency domain resources to be used in subsequent communication with the second node.

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

[0128] - Bandwidth information

[0129] - Frequency domain starting point information

[0130] - Frequency information

[0131] The third node judges / confirms / determines / verifies whether the received preamble ID matches with the preamble transmitted to the second node before. If it matches, the third node uses the temporary radio network temporary identifier included in the random access response as the access network identifier used when communicating with the second node during random access, and determines frequency domain resources to be used in subsequent communication with the second node according to the frequency domain related information. If there is no matching preamble ID, the third node determines to perform a back-off related operation, and determines a back-off value based on the third value.

[0132] It should be noted that the methods for using the back-off value by the third node are similar to the methods for using the second value. For example, when or after the back-off value is reduced / subtracted / decreased to zero, the third node can transmit a preamble to the second node again.

[0133] As to how the third node generates a back-off value according to the third value, one possible implementation is that the back-off value is a random value generated according to the third value. Specifically, the back-off value is a random integer with a value ranging from 0 to 2^(the third value) and inclusive. Another possible implementation is that the back-off value is equal to the third value or equal to the third value plus one or equal to the third value minus one.

[0134] Step 307: after receiving the random access response, if the random access response includes a matching preamble ID, the third node transmits fourth information to the second node. The fourth information is used to provide the second node with related information of the A-IoT device, and / or to request the setup of a radio resource control connection.

[0135] In some implementations, the fourth information may include at least one of the following information:

[0136] - User equipment (UE) ID of the third node, such as a Temporary Mobile Subscriber Identity (TMSI).

[0137] - Subscription Concealed Identifier (SUCI) of the third node.

[0138] - Permanent Equipment Identifier (PEI) of the third node.

[0139] - Indication of Available Report, which is used to indicate that the third node has a report that can be reported. The report may include a measurement report related to the Ambient Internet of Things.

[0140] The fourth information may be included in a radio resource control (RRC) message, and the message name thereof may be such as equipment information message, user equipment information message, etc. It may also be included in an existing RRC message, such as an RRC setup request message, etc.

[0141] If the third node has not been configured with a Temporary Mobile Subscriber Identity, one possible implementation is that the third node generates a random value as the UE ID.

[0142] Optionally, the Subscription Concealed Identifier and the Permanent Equipment Identifier of the third node may be included in a non-access stratum message. In this case, the second node will forward the non-access stratum message to the first node after receiving the non-access stratum message.

[0143] If the third node has a measurement-related report (such as a report of sensor data), the Indication of Available Report is included in the fourth information.

[0144] The second node determines that the third node has a measurement-related report according to the Indication of Available Report included in the fourth information. Optionally, the second node decides to trigger a subsequent process / procedure for obtaining a measurement-related report from the third node.

[0145] Step 308: after receiving the fourth information, the second node transmits a contention resolution message to the third node. The contention resolution message may be used for contention resolution for random access and / or security activation for the third node.

[0146] The contention resolution message includes part or whole UE IDs of part or all of the third nodes.

[0147] The third node judges / confirms / determines / verifies whether a UE ID included in the received contention resolution message match with the UE ID configured for itself or stored on itself according to the part or whole UE IDs of part or all of the third nodes included in the received contention resolution message. If it matches, the third node will change the temporary radio network temporary identifier included in the random access response into a radio network temporary identifier, and the radio network temporary identifier is used to identify the A-IoT device in the access network during subsequent communication with the second node. If it does not match, the third node considers that the random access failed, and generates a random access related value based on the first value or the third value for a next random access (i.e., a next transmission of a preamble).

[0148] It should be noted that the methods for using the random access related value by the third node are similar to the methods for using the second value.

[0149] Step 309: after receiving the fourth information, the second node transmits an initial UE message to the first node. The initial UE message is used to provide the first node with related information of the A-IoT device.

[0150] In some implementations, the initial UE message may include at least one of the following information:

[0151] - Session ID and / or service ID, which is used to identify a session and / or service for A-IoT.

[0152] - User equipment (UE) ID of the third node, such as a Temporary Mobile Subscriber Identity (TMSI).

[0153] - Subscription Concealed Identifier (SUCI) of the third node.

[0154] - Permanent Equipment Identifier (PEI) of the third node.

[0155] Optionally, the Subscription Concealed Identifier and the Permanent Equipment Identifier of the third node may be included in a non-access stratum message related information element or a non-access stratum packet data unit (and the non-access stratum message related information element or the non-access stratum packet data unit is included in the initial UE message). In this case, the second node transmits the non-access stratum message to the first node.

[0156] The first node identifies the session and / or service for A-IoT according to the session ID and / or service ID.

[0157] The first node identifies the user equipment (i.e., the A-IoT device) according to the initial UE message.

[0158] Step 310: after receiving the initial UE message, the first node initiates an initial context setup process / procedure to the second node, which is used to set up a user equipment context for the third node at the second node.

[0159] Step 311: after the first node and the second node complete the initial context setup process / procedure, the first node may transmit sixth information to the second node. The sixth information may be used to provide the second node with information related to non-access stratum (NAS) operations (such as an access operation, a read-write operation, a locking operation, a storage operation, etc.) on the third node. For example, the sixth information may include information for a non-access stratum (NAS) and / or information for indicating the second node to configure resources for the third node.

[0160] For example, in some implementations, the sixth information may include at least one of the following information:

[0161] - Identification information related to a third node, which is used to identify a third node corresponding to the non-access stratum related information.

[0162] - Session ID and / or service ID, which is used to identify a session and / or service for A-IoT.

[0163] - Non-access stratum message related information element or non-access stratum packet data unit, which includes a request or command for a non-access stratum related operation, etc.

[0164] - Response-related information of a third node, which is used to provide related information about whether the non-access stratum related information needs to be responded / replied by the third node.

[0165] - Information for indicating the second node to configure resources for the third node, such as time domain resources and / or frequency domain resources for the third node to access or communicate with the second node.

[0166] The sixth information may be included in the existing NGAP DOWNLINK NAS TRANSPORT message or other existing or new NGAP messages.

[0167] The second node determines the third node corresponding to the non-access stratum related information according to the identification information related to the third node.

[0168] The second node determines the corresponding A-IoT related session and / or service according to the session ID and / or service ID.

[0169] Optionally, the second node determines whether it is necessary to provide the third node with time domain resources and / or frequency domain resources required by a subsequent response / reply according to the response / reply-related information of the third node.

[0170] Step 312: after receiving the sixth information, the second node transmits seventh information to the third node according to the content of the sixth information. The seventh information is used to transmit non-access stratum related information to the third node, and / or to provide the third node with time domain resources and / or frequency domain resources for subsequent communication with the second node. For example, the seventh information may include information for NAS and first time domain resource related information and / or first frequency domain resource related information for the communication between the third node and the second node.

[0171] For example, in some implementations, the seventh information may include at least one of the following information:

[0172] - Session ID and / or service ID, which is used to identify a session and / or service for A-IoT.

[0173] - Non-access stratum message related information element or non-access stratum packet data unit, which includes a request or command for a non-access stratum related operation, etc.

[0174] - A radio network temporary identifier of the third node, which is used for the third node to identify the seventh information transmitted to the third node at the access stratum.

[0175] - Time domain related information, which is used to provide the A-IoT device with related information of time domain resources to be used in subsequent communication and / or response with the second node.

[0176] - Frequency domain related information, which is used to provide the A-IoT device with frequency domain resources to be used in subsequent communication and / or response with the second node.

[0177] In some implementations, the frequency domain related information may include at least one of the following information:

[0178] - Bandwidth information

[0179] - Frequency domain starting point information

[0180] - Frequency information

[0181] It should be noted that if the response-related information of the third node included in the sixth information received by the second node makes the second node confirm that the third node needs to provide a response subsequently, the second node may include time domain related information and / or frequency domain related information in the seventh information.

[0182] The seventh information may be included in the existing RRC DLInformationTransfer message or other existing or new RRC messages. It may also be included in a media access control (MAC) control element (CE), and the message name thereof may be such as operation command, operation request, etc. It may also be included in a downlink control indication (DCI).

[0183] The third node determines the A-IoT related session and / or service according to the session ID and / or service ID.

[0184] The third node determines related information of time domain resources to be used in subsequent communication and / or response with the second node according to the time domain related information.

[0185] The third node determines frequency domain resources to be used in subsequent communication and / or response with the second node according to the frequency domain related information.

[0186] Step 312a (for example, one or more of steps 312a-1, 312a-2 and 312a-3 may be further included): optionally, if the third node determines that it needs to respond / reply to the first node in the non-access stratum according to the content of the seventh information (for example, the seventh information may further include information indicating that the third node needs to respond / reply to the first node in the non-access stratum), then the third node performs transmission of data and / or signaling (for example, uplink information transport including a non-access stratum message) on corresponding time-frequency resources according to the time domain related information and / or frequency domain related information included in the seventh information, and transmits it to the second node through an RRC message, where the RRC message at least includes a non-access stratum message related information element or non-access stratum packet data unit for response.

[0187] Optionally, the RRC message may include an Indication of Available Report to indicate that the third node has a report that can be reported.

[0188] The second node determines that the third node has a measurement-related report according to the Indication of Available Report included in the RRC message. Optionally, the second node decides to trigger a subsequent process / procedure for obtaining a measurement-related report from the third node.

[0189] It should be noted that the RRC message transmitted by the third node to the second node may be an RRC UL (uplink) information transfer message or other existing or new RRC messages.

[0190] Optionally, after receiving the RRC message transmitted by the third node, the second node transmits the non-access stratum message related information element or non-access stratum packet data unit included in the RRC message to the first node through an NGAP message. The NGAP message may be an NGAP uplink non-access stratum transport message, or other existing or new NGAP messages.

[0191] Step 313 (for example, steps 313-1 and 313-2 may be further included): after the second node receives a request from the first node (for example, receives a request or indication or paging cause / reason included in the first information which is to request the third node to report sensor data and / or measurement), or receives an indication from the third node (for example, receives an Indication of Available Report included in the fourth information or the uplink information transfer message), the second node may trigger an information extraction / retrieval related process / procedure. The second node may transmit eighth information to the third node. The eighth information is used to extract / retrieve information from the third node (the extracted / retrieved information may be, for example, sensor data measured or collected by the third node).

[0192] In some implementations, the eighth information may include at least one of the following information:

[0193] - Session ID and / or service ID, which is used to identify a session and / or service for A-IoT.

[0194] - An application layer report request, which is used to request the third node to report application layer related data and / or measurement (for example, to report sensor data and / or measurement). Herein, it may also be referred to as information for requesting application-related data and / or measurement of the third node.

[0195] - Time domain related information, which is used to provide the A-IoT device with related information of time domain resources to be used in subsequent communication and / or response with the second node. Herein, it may also be called second time domain resource related information for communication between the third node and the second node.

[0196] - Frequency domain related information, which is used to provide the A-IoT device with frequency domain resources to be used in subsequent communication and / or response with the second node. Herein, it may also be called second frequency domain resource related information for communication between the third node and the second node.

[0197] In some implementations, the frequency domain related information may include at least one of the following information:

[0198] - Bandwidth information

[0199] - Frequency domain starting point information

[0200] - Frequency information

[0201] The eighth information may be included in the existing RRC UEInformationRequest message or other existing or new RRC messages.

[0202] The third node determines the A-IoT related session and / or service according to the session ID and / or service ID in the eighth information (also referred to as a fourth session ID and / or fourth service ID herein).

[0203] The third node determines that application layer related data and / or measurement is required to be reported accord to the application layer report request.

[0204] The third node determines related information of time domain resources to be used in subsequent communication and / or response with the second node according to the time domain related information.

[0205] The third node determines frequency domain resources to be used in subsequent communication and / or response with the second node according to the frequency domain related information.

[0206] Step 314 (for example, steps 314-1, 314-2 and 314-3 may be further included): if the third node has an application layer report to be transmitted, data and / or signaling are transmitted on corresponding time-frequency resources. If the eighth information includes time domain related information and / or frequency domain related information, the third node performs transmission of data and / or signaling on the corresponding time domain and / or frequency domain resources according to the related information included in the eighth information. The application layer report may be included in a non-access stratum message related information element or a non-access stratum packet data unit and transmitted to the second node through an RRC message.

[0207] The RRC message may be an RRC user equipment information response message or other existing or new RRC messages.

[0208] After receiving the RRC message transmitted by the third node, the second node transmits the non-access stratum message related information element or non-access stratum packet data unit included in the RRC message to the first node through an NGAP message. The NGAP message may be an NGAP uplink non-access stratum transport message, or other existing or new NGAP messages.

[0209] Through the above methods, it is ensured that the network side can obtain related information stored by the A-IoT devices by means of interaction / coordination. Furthermore, by setting up / establishing a context and further performing relevant commands or operations on the A-IoT devices at the network side, normal communication between the network side and the A-IoT devices is ensured.

[0210] FIG. 3B shows an example method for A-IoT signaling or data transmission according to embodiments of the present disclosure. As shown in FIG. 3B:

[0211] Step 400: the first node, the second node and the third node perform necessary interaction / coordination with each other, and the specific interacting / coordinating flow or steps are the same as those in steps 301-308 of FIG. 3A.

[0212] Step 401: after receiving at least one fourth message, the second node transmits ninth message to the first node. The ninth information is used to provide the first node with related information of A-IoT devices (related to a third node set or related to a set of third nodes), and / or to request context setup and / or context modification of a set of A-IoT devices.

[0213] In some implementations, the ninth information may include at least one of the following information:

[0214] - A session ID and / or service ID of each third node set of at least one third node set, which is used to identify a session and / or service for A-IoT. Herein, it may also be called a fifth session ID and / or fifth service ID related to the Ambient Internet of Things.

[0215] - A UE ID list of at least one third node included in each third node set of at least one third node set, where the UE ID of a third node is, for example, a Temporary Mobile Subscriber Identity.

[0216] - A Subscription Concealed Identifier list of at least one third node included in each third node set of at least one third node set.

[0217] - A Permanent Equipment Identifier list of at least one third node included in each third node set of at least one third node set.

[0218] - An interface identification list of at least one third node included in each third node set of at least one third node set, which is used to identify specific third nodes between the first node and the second node.

[0219] Optionally, the Subscription Concealed Identifier and Permanent Equipment Identifier of the third node may be included in the non-access stratum message related information element or the non-access stratum packet data unit. In this case, the second node transmits a non-access stratum message related information element list or a non-access stratum packet data unit list to the first node.

[0220] It should be noted that the interface identification list of the third node is associated with the UE ID list and / or Subscription Concealed Identifier list and / or Permanent Equipment Identifier list of the third node, that is, the association relationship between the interface identification related information of the third node and the UE ID and / or non-access stratum packet data unit of the third node may also be explicitly or implicitly indicated by the ninth information. One possible implementation is that there’s a one-to-one mapping among the interface identification related information of the third node and the UE ID and / or Subscription Concealed Identifier and / or Permanent Equipment Identifier and / or non-access stratum packet data unit of the third node. In this way, when the first node and the second node interact / coordinate with each other for at least one certain third node subsequently, they only need to identify a relevant third node by using the interface identification related information of the third node.

[0221] The ninth information may be included in an NGAP message, and the message name thereof may be such as initial set / group context setup request, set / group context setup request, set / group context modification request, set / group information transmission, etc.

[0222] The first node identifies the session and / or service for A-IoT according to the session ID and / or service ID.

[0223] The first node determines the corresponding interface identification related information between the first node and the second node of the third node participating in the corresponding A-IoT session and / or service according to the interface identification list of the third node.

[0224] Step 402: after receiving the ninth information, the first node transmits tenth information to the second node according to the content of the ninth information. The tenth information is used to respond / reply to the context setup of a set of A-IoT devices and / or to the context modification of a set of A-IoT devices.

[0225] In some implementations, the tenth information may include at least one of the following information:

[0226] - A session ID and / or service ID of each third node set of at least one third node set, which is used to identify a session and / or service for A-IoT. Herein, it may also be called a sixth session ID and / or sixth service ID related to the Ambient Internet of Things.

[0227] - An interface identification list of accepted third nodes in each third node set of at least one third node set, which is used for the second node to determine or identify at least one third node accepted by the first node.

[0228] The tenth information may be included in an NGAP message, and the message name thereof may be such as initial set context setup response, set context setup response, set context modification response, set information transport response, etc.

[0229] The second node identifies the session and / or service for A-IoT according to the session ID and / or service ID.

[0230] The second node determines or identifies the third nodes accepted by the first node according to the interface identification list of the accepted third nodes.

[0231] Optionally, the second node may also determine or identify third nodes that are not accepted by the first node according to the interface identification list of the accepted third nodes. Afterwards, optionally, the second node may transmit an RRC release message to the third nodes that are not accepted by the first node.

[0232] Step 403: after the first node and the second node complete the context setup of a set, the first node may transmit eleventh information to the second node. The eleventh information may be used to transmit a non-access stratum message related information element or a non-access stratum packet data unit to at least one third node in the third node set (for example, an accepted third node set or an accepted third node), and / or to provide the second node with related information about the non-access stratum related information of at least one third node in the third node set (the non-access stratum related information may include, for example, an access operation, a read-write operation, a locking operation, a storage operation, etc.)

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

[0234] - Session ID and / or service ID, which is used to identify a session and / or service for A-IoT.

[0235] - An interface identification list of at least one third node, which is used to identify specific third nodes between the first node and the second node.

[0236] - A non-access stratum message related information element list or a non-access stratum packet data unit list, which includes a request or command for a non-access stratum related operation, etc. It may also be called information for a non-access stratum (NAS).

[0237] - A list of response-related information of the third node, which is used to provide the related information of the non-access stratum whether the third node needs to respond / reply.

[0238] The eleventh information may be included in an NGAP message, and the message name thereof may be such as downlink set non-access stratum transport message, downlink group non-access stratum transport message, downlink class non-access stratum transport message, etc. It may also be included in other existing or new NGAP messages.

[0239] It should be noted that the interface identification list of the third node is associated with the non-access stratum message related information element list or non-access stratum packet data unit list and / or a response-related list of the third node, that is, the association relationship between the interface identification related information of the third node and its non-access stratum message related information element or non-access stratum packet data unit and / or response-related information may also be explicitly or implicitly indicated by the eleventh information. One possible implementation is that there’s one-to-one mapping among the interface identification related information of the third node and the non-access stratum message related information element or the non-access stratum packet data unit and / or the response-related information. In this way, after receiving the eleventh information, the second node can determine or identify at least one third node in the third node set targeted by the eleventh information, and the non-access stratum message related information element or non-access stratum packet data unit and / or response-related information corresponding to each of the third nodes involved.

[0240] The second node determines the corresponding A-IoT related session and / or service according to the session ID and / or service ID.

[0241] The second node determines or identifies at least one third node in the third node set corresponding to the related information of the non-access stratum according to the interface identification list of the third node.

[0242] Step 404: the second node performs necessary interaction / coordination with the third node, which is the same as steps 313 and 314 in FIG. 3A, and / or steps 312 or 312 and 312a in FIG. 3A (step 312a is optional: if the eleventh information provides related information on that a response of the third node is required for the third node, steps 312 and 312a are required; otherwise, only step 312 is needed).

[0243] Step 405: if the second node receives a non-access stratum message related information element or a non-access stratum packet data unit from at least one third node in the third node set, the second node may transmit twelfth information to the first node. The twelfth information is used to transmit the non-access stratum message related information element or non-access stratum packet data unit received from at least one third node in the third node set to the first node.

[0244] In some implementations, the twelfth information may include at least one of the following information:

[0245] - Session ID and / or service ID, which is used to identify a session and / or service for A-IoT.

[0246] - An interface identification list of a third node, which is used to identify specific third nodes between the first node and the second node.

[0247] - A non-access stratum message related information element list or a non-access stratum packet data unit list, which includes a request or command for a non-access stratum related operation, etc.

[0248] The twelfth information may be included in an NGAP message, and the message name thereof may be such as uplink set non-access stratum transport message, uplink group non-access stratum transport message, uplink class non-access stratum transport message, etc. It may also be included in other existing or new NGAP messages.

[0249] It should be noted that the interface identification list of the third node is associated with the non-access stratum message related information element list or the non-access stratum packet data unit list, that is, the association relationship between the interface identification related information of the third node and its non-access stratum message related information element or non-access stratum packet data unit may also be explicitly or implicitly indicated by the twelfth information. One possible implementation is that there’s one-to-one mapping among the interface identification related information of the third node and the non-access stratum message related information element or the non-access stratum packet data unit. In this way, after receiving the twelfth information, the first node can determine or identify at least one third node in the third node set targeted by the twelfth information and the non-access stratum message related information element or non-access stratum packet data unit corresponding to each of the third nodes involved.

[0250] The first node determines the corresponding A-IoT related session and / or service according to the session ID and / or service ID.

[0251] The first node determines or identifies the non-access stratum message related information element or non-access stratum packet data unit of at least one third node in the third node set transmitted by the second node according to the interface identification list of the third node.

[0252] Step 406: the first node may transmit thirteenth information to the second node. The thirteenth information is used to release the context of a set (for example, a set of third nodes).

[0253] Herein the thirteenth information may at least include a session ID and / or service ID of each third node set of at least one third node set, which is used to identify a session and / or service for A-IoT.

[0254] The thirteenth information may be included in an NGAP message, and the message name thereof may be such as set context release message, set context release command message, etc. It may also be included in other existing or new NGAP messages.

[0255] The second node determines the A-IoT related session and / or service that need to be released according to the session ID and / or service ID.

[0256] Step 407: the second node may transmit fourteenth information to the third node. The fourteenth information includes information for providing a set of third nodes with information for releasing the access stratum related information.

[0257] The fourteenth information may at least include a session ID and / or service ID, which is used to identify a session and / or service for A-IoT that needs to be released. It may also at least include explicit or implicit indication information about that the session and / or service for A-IoT need to be released. In this case, the third node determines or identifies the corresponding session and / or service for A-IoT through the time domain resources and / or frequency domain resources on which the fourteenth information is received. If the fourteenth information is received on corresponding time domain resources and / or frequency domain resources, the third node thinks that the related information of a corresponding session and / or service for A-IoT needs to be released (such as the access network temporary identifier assigned by the second node to the third node).

[0258] The fourteenth information may be included in an RRC message, and the message name thereof may be such as set release message, set RRC release message, etc. It may also be included in an existing RRC message. It may also be included in a media access control (MAC) control element (CE), and the message name thereof may be such as set release, session and / or service release, etc. It may also be included in a downlink control indication (DCI).

[0259] If the fourteenth information includes a session ID and / or service ID, the third node determines or identifies whether the session and / or service to be released matches with the session and / or service being performed by the third node itself according to the session ID and / or service ID. If it does not match, no action is needed; and if it matches, the third node releases the related information of the corresponding A-IoT session and / or service (such as the access network temporary identifier assigned by the second node to the third node).

[0260] Through the above methods, it is ensured that the core network and the access network can perform related commands or operations or processes / procedures on a set of A-IoT devices simultaneously. Meanwhile, it is ensured that the network side can perform related commands or operations or processes / procedures on a set of A-IoT devices simultaneously, thereby saving the signaling quantity and / or overhead of interfaces and / or air interfaces.

[0261] It should be understood that, depending on the application scenarios, the various example aspects, methods, steps, processes / procedures, etc. described above in connection with the attached drawings can be combined and implemented in any way, including implementing in an order different from that shown in the drawings or deleting one or more steps in the drawings, etc., and there is no limitation here.

[0262] Next, FIG. 4 shows a flowchart of a method 450 performed by a second node in a wireless communication system according to embodiments of the present disclosure.

[0263] As shown in FIG. 4, a method 450 performed by a second node in a wireless communication system according to embodiments of the present disclosure may include: in step S451, receiving first information from a first node, wherein the first information includes a first identification 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 in step S452, transmitting second information to a third node, wherein the second information includes at least one of: the first identification, related information of the third node associated with the session or service for the Ambient Internet of Things, and a first value for random access.

[0264] According to embodiments of the present disclosure, the first information further includes at least one of: a cause / reason for triggering the transmission of the first information; and area information associated with the session or service for the Ambient Internet of Things.

[0265] According to embodiments of the present disclosure, the second information further includes at least one of: a cause / reason for triggering the transmission of the second information; third frequency domain resource related information for communication between the third node and the second node; and information related to preamble for random access.

[0266] According to embodiments of the present disclosure, the method further includes: transmitting fifth information to the third node, wherein the fifth information includes at least one of information related to adjustment of the first value and the first identification.

[0267] According to embodiments of the present disclosure, the method further includes: after transmitting the second information to the third node, performing the following operations at least once: transmitting third information to the third node, wherein the third information includes the first identification, and wherein the third information is used by the third node to determine a time to transmit a preamble.

[0268] According to embodiments of the present disclosure, the method further includes receiving fourth information from the third node, wherein the fourth information includes at least one of: a device identity of the third node, a Subscription Concealed Identifier of the third node, a Permanent Equipment Identifier of the third node, and information for indicating that the third node has a measurement report related to an Ambient Internet of Things device that can be reported.

[0269] According to embodiments of the present disclosure, the method further includes: receiving sixth information from the first node, wherein the sixth information includes information for a non-access stratum (NAS) and information for indicating the second node to configure resources for the third node; and transmitting seventh information to the third node, wherein the seventh information includes information for a 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.

[0270] According to embodiments of the present disclosure, the method further includes transmitting eighth information to the third node, wherein the eighth information includes at least one of: the first identification, information for requesting application layer related data and / or measurement of the third node, second time domain resource related information for communication between the third node and the second node, and second frequency domain resource related information for communication between the third node and the second node.

[0271] FIG. 5 shows a flowchart of a method 500 performed by a third node in a wireless communication system according to embodiments of the present disclosure.

[0272] As shown in FIG. 5, a method 500 performed by a third node in a wireless communication system according to embodiments of the present disclosure may include: in step S501, receiving second information from a second node, wherein the second information includes at least one of: a first identification associated with a session or service for an Ambient Internet of Things, related information of a third node associated with the session or service for the Ambient 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.

[0273] According to embodiments of the present disclosure, the second information further includes at least one of: a cause / reason for triggering the transmission of the second information; third frequency domain resource related information for communication between the third node and the second node; and information related to preamble for random access.

[0274] According to embodiments of the present disclosure, the generating a second value based on the first value includes generating a second value based on the first value in case that 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.

[0275] According to embodiments of the present disclosure, the method further includes: receiving fifth information from the second node, wherein the fifth information includes at least one of information related to adjustment of the first value and the first identification; adjusting the first value based on the fifth information; and generating a new second value based on the adjusted first value.

[0276] According to embodiments of the present disclosure, the method further includes: after receiving the second information from the second node, performing the following operations at least once: receiving third information from the second node, wherein the third information includes the first identification; and determining a time to transmit a preamble based on the third information.

[0277] According to embodiments of the present disclosure, the determining a time to transmit a preamble based on the third information includes: subtracting a preset / default value from the second value every time the third information is received, wherein, the method further includes: transmitting a preamble to the second node when the second value is reduced / subtracted / decreased to zero.

[0278] According to embodiments of the present disclosure, the transmitting a preamble to the second node includes transmitting the preamble on a corresponding frequency domain resource according to frequency domain resource related information included in the second information.

[0279] According to embodiments of the present disclosure, the method further includes: transmitting fourth information to the second node, wherein the fourth information includes at least one of: a device identity of the third node, a Subscription Concealed Identifier of the third node, a Permanent Equipment Identifier of the third node, and information for indicating that the third node has a measurement report related to an Ambient Internet of Things device that can be reported.

[0280] According to embodiments of the present disclosure, the method further includes: receiving eighth information from the second node, wherein the eighth information includes at least one of: the first identification, information for requesting application layer related data and / or measurement of the third node, second time domain resource related information for communication between the third node and the second node, and second frequency domain resource related information for communication between the third node and the second node.

[0281] According to embodiments of the present disclosure, the method further includes receiving seventh information from the second node, wherein 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 for communication between the third node and the second node.

[0282] According to embodiments of the present disclosure, the method further includes: in case that the third node determines that it is necessary to respond / reply to a first node in a non-access stratum based on the seventh information, performing uplink information transmission based on the first time domain resource related information and / or the first frequency domain resource related information included in the seventh information or third frequency domain resource related information.

[0283] According to embodiments of the present disclosure, the method further includes: in case that 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: a first or second time domain resource related information, and a first or second or third frequency domain resource related information.

[0284] FIG. 6 shows a flowchart of a method 600 performed by a first node in a wireless communication system according to embodiments of the present disclosure.

[0285] As shown in FIG. 6, a method 600 performed by a first node in a wireless communication system according to embodiments of the present disclosure may include: in step S601, triggering a first process / procedure associated with a session or service for an Ambient Internet of Things; and in step S602, transmitting first information to a second node, wherein the first information includes a first identification associated with the session or service for the Ambient Internet of Things and / or related information of a third node associated with the session or service for the Ambient Internet of Things.

[0286] According to embodiments of the present disclosure, the first information further includes at least one of: a cause / reason for triggering the transmission of the first information; and area information associated with the session or service for the Ambient Internet of Things.

[0287] According to embodiments of the present disclosure, the method further includes transmitting sixth information to the second node, wherein the sixth information includes information for a non-access stratum (NAS) and information for indicating the second node to configure resources for the third node.

[0288] FIG. 7 shows a flowchart of a method 700 performed by a second node in a wireless communication system according to embodiments of the present disclosure.

[0289] As shown in FIG. 7, a method 700 performed by a second node in a wireless communication system according to embodiments of the present disclosure may include: in step S701, transmitting ninth information to the first node, wherein the ninth information is used for requesting context setup and / or modification of at least one third node set, and each third node set of the at least one third node set includes at least one third node; and in step S702, receiving tenth information for responding / replying to the ninth information from the first node. In some implementations, the ninth information includes at least one of: a first identification associated with a session or service for an Ambient Internet of Things, a device identity list of at least one third node included in each third node set of the at least one third node set, a Subscription Concealed Identifier list of at least one third node included in each third node set of the at least one third node set, a Permanent Equipment Identifier list of at least one third node included in each third node set of the at least one third node set and an interface identification list of at least one third node included in each third node set of the at least one third node set. In some implementations, the tenth information includes at least one of: the first identification and an interface identification list of third nodes accepted by the first node.

[0290] According to embodiments of the present disclosure, the method further includes receiving eleventh information from the first node, wherein the eleventh information includes the first identification and information for a non-access stratum (NAS) for at least one of the accepted third nodes.

[0291] According to embodiments of the present disclosure, the method further includes transmitting twelfth information to the first node, wherein the twelfth information includes the first identification, a non-access stratum message related information element or a non-access stratum packet data unit received from at least one of the accepted third nodes.

[0292] According to embodiments of the present disclosure, the method further includes: receiving thirteenth information from the first node, wherein the thirteenth information includes information for releasing the context of at least one third node set; and transmitting fourteenth information to each third node in the at least one third node set, wherein the fourteenth information includes information for providing each third node in the at least one third node set with information for releasing access stratum related information.

[0293] It should be understood that the methods 450, 500, 600, 700, etc. according to the embodiments of the present disclosure may also include one or more of the methods or steps described above in connection with any examples or drawings, which are not repeated here.

[0294] Next, FIG. 8 shows a schematic diagram of a node 800 in a wireless communication system according to embodiments of the present disclosure.

[0295] As shown in FIG. 8, a node 800 according to embodiments of the present disclosure (which may be, for example, 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 transmit and receive signals. The processor 820 may be coupled to the transceiver 810 and may be configured to (e.g., control the transceiver 810 to) perform any method performed by a node in a wireless communication system according to embodiments of the present disclosure. Herein, a processor may also be called a controller. Herein, a node may also be called a node device.

[0296] FIG. 9 is a block diagram of an internal configuration of a UE, according to an embodiment. Furthermore, the UE of FIG. 9 corresponds to the UE of FIG. 1 and the third node of FIGs. 3A-3B.

[0297] As shown in FIG. 9, the UE according to an embodiment may include a transceiver 910, a memory 920, and a processor 930. The transceiver 910, the memory 920, and the processor 930 of the UE may operate according to a communication method of the UE described above. However, the components of the UE are not limited thereto. For example, the UE may include more or fewer components than those described above. In addition, the processor 930, the transceiver 910, and the memory 920 may be implemented as a single chip. Also, the processor 930 may include at least one processor.

[0298] The transceiver 910 collectively refers to a UE receiver and a UE transmitter, and may transmit / receive a signal to / from a base station or a network entity. The signal transmitted or received to or from the base station or a network entity may include control information and data. The transceiver 910 may include a RF transmitter for up-converting and amplifying a frequency of a transmitted signal, and a RF receiver for amplifying low-noise and down-converting a frequency of a received signal. However, this is only an example of the transceiver 910 and components of the transceiver 910 are not limited to the RF transmitter and the RF receiver.

[0299] Also, the transceiver 910 may receive and output, to the processor 930, a signal through a wireless channel, and transmit a signal output from the processor 930 through the wireless channel.

[0300] The memory 920 may store a program and data required for operations of the UE. Also, the memory 920 may store control information or data included in a signal obtained by the UE. The memory 920 may be a storage medium, such as read-only memory (ROM), random access memory (RAM), a hard disk, a CD-ROM, and a DVD, or a combination of storage media.

[0301] The processor 930 may control a series of processes such that the UE operates as described above. For example, the transceiver 910 may receive a data signal including a control signal transmitted by the base station or the network entity, and the processor 930 may determine a result of receiving the control signal and the data signal transmitted by the base station or the network entity.

[0302] FIG. 10 is a block diagram of an internal configuration of a base station or a network entity, according to an embodiment. Furthermore, the base station or the network entity of FIG. 10 corresponds to the BS or the network entity of FIG. 1, and the first node or the second node of FIGs 3A-3B.

[0303] As shown in FIG. 10, the base station(or the network entity receiver) according to an embodiment may include a transceiver 1010, a memory 1020, and a processor 1030. The transceiver 1010, the memory 1020, and the processor 1030 of the base station(or the network entity receiver) may operate according to a communication method of the base station(or the network entity receiver) described above. However, the components of the base station(or the network entity receiver) are not limited thereto. For example, the base station may include more or fewer components than those described above. In addition, the processor 1030, the transceiver 1010, and the memory 1020 may be implemented as a single chip. Also, the processor 1030 may include at least one processor.

[0304] The transceiver 1010 collectively refers to the base station(or the network entity receiver) and a base station(or the network entity) transmitter, and may transmit / receive a signal to / from a terminal or a network entity or a base station. The signal transmitted or received to or from the terminal or a network entity or the base station may include control information and data. The transceiver 1010 may include a RF transmitter for up-converting and amplifying a frequency of a transmitted signal, and a RF receiver for amplifying low-noise and down-converting a frequency of a received signal. However, this is only an example of the transceiver 1010 and components of the transceiver 1010 are not limited to the RF transmitter and the RF receiver.

[0305] Also, the transceiver 1010 may receive and output, to the processor 1030, a signal through a wireless channel, and transmit a signal output from the processor 1030 through the wireless channel.

[0306] The memory 1020 may store a program and data required for operations of the base station(or the network entity receiver). Also, the memory 1020 may store control information or data included in a signal obtained by the base station. The memory 1020 may be a storage medium, such as read-only memory (ROM), random access memory (RAM), a hard disk, a CD-ROM, and a DVD, or a combination of storage media.

[0307] The processor 1030 may control a series of processes such that the base station(or the network entity receiver) operates as described above. For example, the transceiver 1010 may receive a data signal including a control signal transmitted by the terminal or the network entity or the base station, and the processor 1030 may determine a result of receiving the control signal and the data signal transmitted by the terminal or the network entity or the base station.

[0308] Embodiments of the present disclosure provide a method performed by a second node in a wireless communication system, which includes: receiving first information from a first node, wherein the first information includes a first identification 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 transmitting second information to a third node, wherein the second information includes at least one of: the first identification, related information of the third node associated with the session or service for the Ambient Internet of Things, and a first value for random access.

[0309] According to embodiments of the present disclosure, the first information further includes at least one of: a cause / reason for triggering the transmission of the first information; and area information associated with the session or service for the Ambient Internet of Things.

[0310] According to embodiments of the present disclosure, the second information further includes at least one of: a cause / reason for triggering the transmission of the second information; third frequency domain resource related information for communication between the third node and the second node; and information related to preamble for random access.

[0311] According to embodiments of the present disclosure, the method further includes: transmitting fifth information to the third node, wherein the fifth information includes at least one of information related to adjustment of the first value and the first identification.

[0312] According to embodiments of the present disclosure, the method further includes: after transmitting the second information to the third node, performing the following operations at least once: transmitting third information to the third node, wherein the third information includes the first identification, and wherein the third information is used by the third node to determine a time to transmit a preamble.

[0313] According to embodiments of the present disclosure, the method further includes receiving fourth information from the third node, wherein the fourth information includes at least one of: a device identity of the third node, a Subscription Concealed Identifier of the third node, a Permanent Equipment Identifier of the third node, and information for indicating that the third node has a measurement report related to an Ambient Internet of Things device that can be reported.

[0314] According to embodiments of the present disclosure, the method further includes: receiving sixth information from the first node, wherein the sixth information includes information for a non-access stratum (NAS) and information for indicating the second node to configure resources for the third node; and transmitting seventh information to the third node, wherein the seventh information includes information for a 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.

[0315] According to embodiments of the present disclosure, the method further includes transmitting eighth information to the third node, wherein the eighth information includes at least one of: the first identification, information for requesting application layer related data and / or measurement of the third node, second time domain resource related information for communication between the third node and the second node, and second frequency domain resource related information for communication between the third node and the second node.

[0316] Embodiments of the present disclosure provide a method performed by a third node in a wireless communication system, which includes: receiving second information from a second node, wherein the second information includes at least one of: a first identification associated with a session or service for an Ambient Internet of Things, related 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 performing random access based on the second value.

[0317] According to embodiments of the present disclosure, the second information further includes at least one of: a cause / reason for triggering the transmission of the second information; third frequency domain resource related information for communication between the third node and the second node; and information related to preamble for random access.

[0318] According to embodiments of the present disclosure, the generating a second value based on the first value includes generating a second value based on the first value in case that 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.

[0319] According to embodiments of the present disclosure, the method further includes: receiving fifth information from the second node, wherein the fifth information includes at least one of information related to adjustment of the first value and the first identification; adjusting the first value based on the fifth information; and generating a new second value based on the adjusted first value.

[0320] According to embodiments of the present disclosure, the method further includes: after receiving the second information from the second node, performing the following operations at least once: receiving third information from the second node, wherein the third information includes the first identification; and determining a time to transmit a preamble based on the third information.

[0321] According to embodiments of the present disclosure, the determining a time to transmit a preamble based on the third information includes: subtracting a preset / default value from the second value every time the third information is received, wherein, the method further includes: transmitting a preamble to the second node when the second value is reduced / subtracted / decreased to zero.

[0322] According to embodiments of the present disclosure, the transmitting a preamble to the second node includes transmitting the preamble on a corresponding frequency domain resource according to frequency domain resource related information included in the second information.

[0323] According to embodiments of the present disclosure, the method further includes: transmitting fourth information to the second node, wherein the fourth information includes at least one of: a device identity of the third node, a Subscription Concealed Identifier of the third node, a Permanent Equipment Identifier of the third node, and information for indicating that the third node has a measurement report related to an Ambient Internet of Things device that can be reported.

[0324] According to embodiments of the present disclosure, the method further includes: receiving eighth information from the second node, wherein the eighth information includes at least one of: the first identification, information for requesting application layer related data and / or measurement of the third node, second time domain resource related information for communication between the third node and the second node, and second frequency domain resource related information for communication between the third node and the second node.

[0325] According to embodiments of the present disclosure, the method further includes receiving seventh information from the second node, wherein 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 for communication between the third node and the second node.

[0326] According to embodiments of the present disclosure, the method further includes: in case that the third node determines that it is necessary to respond / reply to a first node in a non-access stratum based on the seventh information, performing uplink information transmission based on the first time domain resource related information and / or the first frequency domain resource related information included in the seventh information or third frequency domain resource related information.

[0327] According to embodiments of the present disclosure, the method further includes: in case that 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: a first or second time domain resource related information, and a first or second or third frequency domain resource related information.

[0328] Embodiments of the present disclosure provide a method performed by a first node in a wireless communication system, including: triggering a first process / procedure associated with a session or service for an Ambient Internet of Things; and transmitting first information to a second node, wherein the first information includes a first identification associated with the session or service for the Ambient Internet of Things and / or related information of a third node associated with the session or service for the Ambient Internet of Things.

[0329] According to embodiments of the present disclosure, the first information further includes at least one of: a cause / reason for triggering the transmission of the first information; and area information associated with the session or service for the Ambient Internet of Things.

[0330] According to embodiments of the present disclosure, the method further includes transmitting sixth information to the second node, wherein the sixth information includes information for a non-access stratum (NAS) and information for indicating the second node to configure resources for the third node.

[0331] Embodiments of the present disclosure provide a method performed by a second node in a wireless communication system, which includes: transmitting ninth information to the first node, wherein the ninth information is used for requesting context setup and / or modification of at least one third node set, and each third node set of the at least one third node set includes at least one third node; and receiving tenth information for responding / replying to the ninth information from the first node, wherein the ninth information includes at least one of: a first identification of each third node set of the at least one third node set associated with a session or service for an Ambient Internet of Things, a device identity list of at least one third node included in each third node set of the at least one third node set, a Subscription Concealed Identifier list of at least one third node included in each third node set of the at least one third node set, a Permanent Equipment Identifier list of at least one third node included in each third node set of the at least one third node set and an interface identification list of at least one third node included in each third node set of the at least one third node set; and wherein the tenth information includes at least one of: the first identification of each third node set of the at least one third node set and an interface identification list of third nodes accepted by the first node included in each third node set of the at least one third node set.

[0332] According to embodiments of the present disclosure, the method further includes receiving eleventh information from the first node, wherein the eleventh information includes the first identification and information for a non-access stratum (NAS) for at least one of the accepted third nodes.

[0333] According to embodiments of the present disclosure, the method further includes transmitting twelfth information to the first node, wherein the twelfth information includes the first identification, a non-access stratum message related information element or a non-access stratum packet data unit received from at least one of the accepted third nodes.

[0334] According to embodiments of the present disclosure, the method further includes: receiving thirteenth information from the first node, wherein the thirteenth information includes information for releasing the context of at least one third node set; and transmitting fourteenth information to each third node in the at least one third node set, wherein the fourteenth information includes information for providing each third node in the at least one third node set with information for releasing access stratum related information.

[0335] Embodiments of the present disclosure provide a node device in a wireless communication system, including: a transceiver configured to transmit and receive signals; and a controller coupled to the transceiver and configured to perform the method performed by a node in a wireless communication system (e.g., a first node and / or a second node and / or a third node, etc.) according to embodiments of the present disclosure.

[0336] Embodiments of the present disclosure provide a computer-readable medium having stored thereon computer-readable instructions that, when executed by a process / procedure or, may be used to implement any method according to embodiments of the present disclosure.

[0337] The present disclosure provides a method for A-IoT signaling or data transmission, which can ensure that A-IoT devices can transmit signaling or data on appropriate resources by means of interaction / coordination between nodes.

[0338] Various embodiments of the present disclosure may 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 disk read-only memory (CD-ROM), magnetic tape, floppy disk, optical data storage device, carrier wave (e.g., data transmission via the Internet), etc. Computer-readable recording media can be distributed by computer systems connected via a network, and thus computer-readable codes can be stored and executed in a distributed manner. Furthermore, functional programs, codes and code segments for implementing various embodiments of the present disclosure can be easily explained by those skilled in the art to which the embodiments of the present disclosure are applied.

[0339] It will be understood that the embodiments of the present disclosure may be implemented in the form of hardware, software, or a combination of hardware and software. The software may be stored as program instructions or computer-readable codes executable on a processor on a non-transitory computer-readable medium. Examples of non-transitory computer-readable recording media include magnetic storage media (such as ROM, floppy disk, hard disk, etc.) and optical recording media (such as CD-ROM, digital video disk (DVD), etc.). Non-transitory computer-readable recording media may also be distributed on computer systems coupled to a network, so that computer-readable codes are 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 may be implemented by a computer or a portable terminal including a controller and a memory, and the memory may be an example of a non-transitory computer-readable recording medium suitable for storing program (s) with instructions for implementing embodiments of the present disclosure. The present disclosure may be realized by a program with code for concretely implementing the apparatus and method described in the claims, which is stored in a machine (or computer)-readable storage medium. The program may 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.

[0340] What has been described above is only the specific implementation of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Anyone who is familiar with this technical field may make various changes or substitutions within the technical scope disclosed in the present disclosure, and these changes or substitutions should be covered within the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1.A method performed by a second node in a wireless communication system, the method comprising:receiving first information from a first node, wherein the first information includes a first identification 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; andtransmitting second information to the third node, wherein the second information includes at least one of: the first identification, related 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 of claim 1, wherein the first information further includes at least one of:a cause for triggering the transmission of the first information; andarea information associated with the session or service for the Ambient Internet of Things.3.A method performed by a third node in a wireless communication system, the method comprising:receiving second information from a second node, wherein the second information includes at least one of: a first identification associated with a session or service for an Ambient Internet of Things, related 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; andperforming random access based on the second value.4.The method of claim 3, wherein the second information further includes at least one of:a cause for triggering the transmission of the second information;third frequency domain resource related information for communication between the third node and the second node; andinformation related to preamble for random access.5.The method of claim 3, further comprising:receiving fifth information from the second node, wherein the fifth information includes at least one of information related to adjustment of the first value and the first identification;adjusting the first value based on the fifth information; andgenerating a new second value based on the adjusted first value.6.The method of claim 3, further comprising:after receiving the second information from the second node, performing the following operations at least once:receiving third information from the second node, wherein the third information includes the first identification;determining a time to transmit a preamble based on the third information; andtransmitting a preamble to the second node when the second value is decreased to zero, andwherein the determining a time to transmit a preamble based on the third information comprises subtracting a default value from the second value every time the third information is received, andwherein the transmitting a preamble to the second node comprises:transmitting the preamble on a corresponding frequency domain resource according to frequency domain resource related information included in the second information.7.The method of claim 3, further comprising:transmitting fourth information to the second node, wherein the fourth information includes at least one of:a device identity of the third node, a Subscription Concealed Identifier of the third node, a Permanent Equipment Identifier of the third node, and information for indicating that the third node has a measurement report related to an Ambient Internet of Things device that can be reported.8.The method of claim 3, further comprising:receiving eighth information from the second node, wherein the eighth information includes at least one of:the first identification, information for requesting application layer related data and / or measurement of the third node, second time domain resource related information for communication between the third node and the second node, and second frequency domain resource related information for communication between the third node and the second node, andin case that 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: a first or second time domain resource related information, and a first or second or third frequency domain resource related information.9.The method of claim 3, further comprising:receiving seventh information from the second node, wherein 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 for communication between the third node and the second node; andin case that the third node determines that it is necessary to reply to a first node in a non-access stratum based on the seventh information, performing uplink information transmission based on the first time domain resource related information and / or the first frequency domain resource related information included in the seventh information or third frequency domain resource related information.10.A method performed by a first node in a wireless communication system, the method comprising:triggering a first procedure associated with a session or service for an Ambient Internet of Things; andtransmitting first information to a second node, wherein the first information includes a first identification associated with the session or service for the Ambient Internet of Things and / or related information of a third node associated with the session or service for the Ambient Internet of Things.11.The method of claim 10, further comprising:transmitting sixth information to the second node, wherein the sixth information includes information for a non-access stratum (NAS) and information for indicating the second node to configure resources for the third node.12.A method performed by a second node in a wireless communication system, comprising:transmitting ninth information to the first node, wherein the ninth information is used for requesting context setup and / or modification of at least one third node set, and each third node set of the at least one third node set includes at least one third node; andreceiving tenth information for responding to the ninth information from the first node,wherein the ninth information includes at least one of:a first identification of each third node set of the at least one third node set associated with a session or service for an Ambient Internet of Things, a device identity list of at least one third node included in each third node set of the at least one third node set, a Subscription Concealed Identifier list of at least one third node included in each third node set of the at least one third node set, a Permanent Equipment Identifier list of at least one third node included in each third node set of the at least one third node set and an interface identification list of at least one third node included in each third node set of the at least one third node set; andwherein the tenth information includes at least one of:the first identification of each third node set of the at least one third node set and an interface identification list of third nodes accepted by the first node included in each third node set of the at least one third node set.13.The method of claim 12, further comprising:receiving eleventh information from the first node, wherein the eleventh information includes the first identification and information for a non-access stratum (NAS) for at least one of the accepted third nodes.14.The method of claim 12, further comprising:transmitting twelfth information to the first node, wherein the twelfth information includes the first identification, a non-access stratum message related information element or a non-access stratum packet data unit received from at least one of the accepted third nodes.15.The method of claim 12, further comprising:receiving thirteenth information from the first node, wherein the thirteenth information includes information for releasing the context of at least one third node set; andtransmitting fourteenth information to each third node in the at least one third node set, wherein the fourteenth information includes information for providing each third node in the at least one third node set with information for releasing access stratum related information.

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