Communication method and device

Abstract

A communication method and apparatus, relating to the technical field of communications, in the communication method, a first apparatus may indicate to a second apparatus at least one of related parameters of a transmission carrier, such as a transmission power, a transmission start time, a transmission end time, a transmission period, a duration, or a first region, etc. Therefore, the second device can send the carrier wave based on the parameters, so that the carrier wave sending mode of the second device can meet the communication requirement between the A-IOT equipment and the reader-writer, and the communication performance between the A-IOT equipment and the reader-writer can be improved.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a communication method and apparatus. Background Technology

[0002] In ambient IoT (A-IoT) technology, A-IoT devices can communicate with readers. For example, A-IoT devices can communicate with readers using backscattering technology. In this backscattering technology, the A-IoT device can send uplink signals to the reader by reflecting carrier waves from other devices. In other words, the carrier waves sent by other devices can affect the communication performance between the A-IoT device and the reader. However, how other devices send carrier waves is their own decision, which may reduce the communication performance between the A-IoT device and the reader. Summary of the Invention

[0003] This application provides a communication method and apparatus that can improve the communication performance between A-IoT devices and readers.

[0004] In a first aspect, a communication method is provided. This method can be executed by a first device, or by a module (e.g., a processor, chip, or chip system) applied to the first device, or by a logical node, logical module, or software capable of implementing all or part of the functions of the first device. For example, the first device can be an access network device or a chip within the access network device. Taking the application of this method to the first device as an example, in this method, the first device can transmit first information, the first information indicating the transmission of a carrier. The first information includes at least one of the following: transmission power, transmission start time, transmission end time, transmission period, duration, or a first region, the first region including the region where a second device transmits a carrier and / or a service region.

[0005] As can be seen, in the above embodiments, the first device can instruct the second device on relevant parameters for transmitting the carrier, such as at least one of the following: transmission power, transmission start time, transmission end time, transmission period, duration, or a first region. In this way, the second device can transmit the carrier based on these parameters, ensuring that the carrier transmission method of the second device meets the communication requirements between the A-IoT device and the reader, thereby improving the communication performance between the A-IoT device and the reader. For example, if the second device is transmitting a carrier when the A-IoT device and the reader need to communicate, or if the A-IoT device is located in the region and / or service area where the second device is transmitting the carrier, these conditions ensure that the A-IoT device can receive the carrier when communication is needed and transmit a reflected signal based on the carrier. This reduces the possibility of the A-IoT device being unable to communicate with the reader due to the inability to obtain a carrier, thus improving the communication performance between the A-IoT device and the reader.

[0006] Optionally, the above method may further include: the first device acquiring second information, the second information including at least one of the following: the capability of the second device to transmit a carrier, the capability of the second device to transmit a single subcarrier, or the capability of the second device to transmit multiple subcarriers.

[0007] As can be seen, in the above embodiments, the first device can also know which devices have which capabilities, thereby enabling the first device to accurately instruct the devices that support the corresponding capabilities to send carrier waves in a specific manner, thus improving efficiency.

[0008] Optionally, the first device acquires the second information, including: the first device receives the second information from the second device, the third device, or the fourth device.

[0009] Optionally, before the first device receives the second information from the second device, the method further includes: the first device sending third information to the second device, the third information being used to acquire the second information.

[0010] Optionally, the above method may further include: the first device receiving fourth information from the third device, the fourth information indicating the first area.

[0011] Optionally, the above method may further include: the first device receiving fifth information from the fifth device, the fifth information including at least one of the following: service start indication, service start time, or service cycle information.

[0012] Optionally, the above method may further include: the first device sending a sixth message, the sixth message indicating to stop transmitting the carrier wave.

[0013] As can be seen, in the above embodiments, the first device can also instruct the second device to stop transmitting the carrier, thereby reducing the problem of increased power consumption caused by the continuous transmission of the carrier by the second device.

[0014] Optionally, the second device is a terminal, a chip in the terminal, an access network device, or a chip in the access network device; the third device is a core network device or a chip in the core network device; the fourth device is an operation administration and management (OAM) device or a chip in the OAM device; and the fifth device is a terminal or a chip in the terminal, with the fifth device serving as a reader / writer.

[0015] Secondly, a communication method is provided. This method can be executed by a third device, or by a module (e.g., processor, chip, or chip system) applied to the third device, or by a logical node, logical module, or software capable of implementing all or part of the functions of the third device. For example, the third device is a core network device or a chip in a core network device. Taking the application of this method to a third device as an example, in this method, the third device sends first information, which indicates the transmission of a carrier. The first information includes at least one of the following: transmission power, transmission start time, transmission end time, transmission period, duration, or a first region, where the first region includes the region where the second device transmits the carrier and / or the service region.

[0016] As can be seen, in the above embodiments, the third device can instruct the second device on relevant parameters for transmitting the carrier, such as at least one of the following: transmission power, transmission start time, transmission end time, transmission period, duration, or a first region. In this way, the second device can transmit the carrier based on these parameters, ensuring that the carrier transmission method of the second device meets the communication requirements between the A-IoT device and the reader, thereby improving the communication performance between the A-IoT device and the reader. For example, if the second device is transmitting a carrier when the A-IoT device and the reader need to communicate, or if the A-IoT device is located in the region and / or service area where the second device is transmitting the carrier, these conditions ensure that the A-IoT device can receive the carrier when communication is needed and transmit a reflected signal based on the carrier. This reduces the possibility of the A-IoT device being unable to communicate with the reader due to the inability to obtain a carrier, thus improving the communication performance between the A-IoT device and the reader.

[0017] Optionally, the above method may further include: the third device receiving second information from the second device, the second information including at least one of the following: the capability of the second device to transmit a carrier, the capability of the second device to transmit a single subcarrier, or the capability of the second device to transmit multiple subcarriers.

[0018] As can be seen from the above embodiments, the third device can also know which devices have which capabilities, thereby enabling the first device to accurately instruct the devices that support the corresponding capabilities to send carrier waves in a specific manner, thus improving efficiency.

[0019] Optionally, the above method further includes: the third device sending a sixth message, the sixth message indicating to stop transmitting the carrier.

[0020] As can be seen, in the above embodiments, the third device can also instruct the second device to stop transmitting the carrier, thereby reducing the problem of increased power consumption caused by the second device continuously transmitting the carrier.

[0021] Optionally, the second device is a terminal, a chip in the terminal, an access network device, or a chip in the access network device.

[0022] Thirdly, a communication method is provided. This method can be executed by a fifth device, or by a module applied to the fifth device (e.g., a processor, chip, or chip system), or by a logic node, logic module, or software capable of implementing all or part of the functions of the fifth device. For example, the fifth device is a terminal or a chip within a terminal. Taking the application of this method to the fifth device as an example, in this method, the fifth device can send first information indicating the transmission of a carrier. The first information includes at least one of the following: transmission power, transmission start time, transmission end time, transmission period, duration, or a first region, where the first region includes the region where the second device transmits the carrier and / or the service region.

[0023] As can be seen, in the above embodiments, the fifth device can instruct the second device on relevant parameters for transmitting the carrier, such as at least one of the following: transmission power, transmission start time, transmission end time, transmission period, duration, or a first region. In this way, the second device can transmit the carrier based on these parameters, ensuring that the carrier transmission method of the second device meets the communication requirements between the A-IoT device and the reader, thereby improving the communication performance between the A-IoT device and the reader. For example, if the second device is transmitting a carrier when the A-IoT device and the reader need to communicate, or if the A-IoT device is located in the region and / or service area where the second device is transmitting the carrier, these conditions ensure that the A-IoT device can receive the carrier when communication is needed and transmit a reflected signal based on the carrier. This reduces the possibility of the A-IoT device being unable to communicate with the reader due to the inability to obtain a carrier, thus improving the communication performance between the A-IoT device and the reader.

[0024] Optionally, the above method further includes: the fifth device receiving fourth information from the third device, the fourth information indicating the first area.

[0025] Optionally, the second device is a terminal or a chip in a terminal, and the third device is a core network device or a chip in a core network device.

[0026] Fourthly, a communication method is provided. This method can be executed by a second device, or by a module (e.g., a processor, chip, or chip system) applied to the second device, or by a logical node, logical module, or software capable of implementing all or part of the functions of the second device. For example, the second device is a terminal, a chip in a terminal, an access network device, or a chip in an access network device. Taking the application of this method to the second device as an example, in this method, the second device can receive first information indicating the transmission of a carrier. The first information includes at least one of the following: transmission power, transmission start time, transmission end time, transmission period, duration, or a first region, where the first region includes the region where the second device transmits the carrier and / or a service region. Thus, the second device can transmit the carrier based on the first information.

[0027] Optionally, the above method further includes: the second device transmitting second information, the second information including at least one of the following: the capability of the second device to transmit a carrier, the capability of the second device to transmit a single subcarrier, or the capability of the second device to transmit multiple subcarriers.

[0028] Optionally, before the second device sends the second information, the method further includes: the second device receiving third information, the third information being used to acquire the second information.

[0029] Optionally, the above method further includes: the second device receiving sixth information, the sixth information indicating to stop transmitting the carrier.

[0030] Fifthly, a communication device is provided, comprising units or modules for implementing the method as described in any one of the first to fourth aspects. The communication device may be a terminal, a module of a terminal (e.g., a processor, chip, or chip system), or a logical node, logical module, or software capable of implementing all or part of the terminal's functions. Alternatively, the communication device may be an access network device, a module of an access network device (e.g., a processor, chip, or chip system), or a logical node, logical module, or software capable of implementing all or part of the access network device's functions.

[0031] A sixth aspect provides a communication device, comprising at least one processor; wherein the at least one processor is configured to perform the method described in any one of the first to fourth aspects. The communication device may be a terminal, a module of a terminal (e.g., a processor, chip, or chip system), or a logical node, logical module, or software capable of implementing all or part of the terminal's functions. Alternatively, the communication device may be an access network device, a module of an access network device (e.g., a processor, chip, or chip system), or a logical node, logical module, or software capable of implementing all or part of the access network device's functions. The at least one processor may execute a computer program or instructions stored in a memory to cause the aforementioned method to be performed. The memory may be included in the communication device or located outside the communication device. Furthermore, the communication device may also include an interface.

[0032] A seventh aspect provides a computer-readable storage medium storing computer instructions that, when executed, cause a computer to perform the method described in any one of the first to fourth aspects.

[0033] Eighthly, a computer program product is provided, comprising: computer program code, which, when executed by a computer, causes the computer to perform the method described in any one of the first to fourth aspects.

[0034] A ninth aspect provides a chip including at least one processor and an interface, the processor being configured to read and execute instructions stored in a memory, wherein when the instructions are executed, the chip causes the chip to perform the method described in any one of the first to fourth aspects.

[0035] A tenth aspect provides a communication system comprising a first means for performing the method as described in any one of the first aspects and a second means for performing the method as described in any one of the fourth aspects. Alternatively, it comprises a third means for performing the method as described in any one of the second aspects and a second means for performing the method as described in any one of the fourth aspects. Alternatively, it comprises a fifth means for performing the method as described in any one of the third aspects and a second means for performing the method as described in any one of the fifth aspects.

[0036] It should be understood that the fourth to tenth aspects of this application correspond to the technical solutions of any one of the first to third aspects of this application, and the beneficial effects obtained by each aspect and the corresponding feasible implementation are similar, and will not be repeated here. Attached Figure Description

[0037] Figure 1 As the basic architecture of a communication system;

[0038] Figure 2 This is the basic architecture of an A-IoT communication system;

[0039] Figure 3 A flowchart illustrating a communication method provided in an embodiment of this application;

[0040] Figure 4 A flowchart illustrating yet another communication method provided in an embodiment of this application;

[0041] Figure 5 A flowchart illustrating yet another communication method provided in an embodiment of this application;

[0042] Figure 6 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0043] Figure 7 This is a schematic diagram of another communication device provided in an embodiment of this application. Detailed Implementation

[0044] The technical solutions in the embodiments of this application will be described below with reference to the accompanying drawings. The terms "system" and "network" in the embodiments of this application can be used interchangeably. Unless otherwise stated, " / " indicates that the objects before and after are in an "or" relationship; for example, A / B can represent A or B. "And / or" in this application is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone, where A and B can be singular or plural. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be one or multiple. Furthermore, to facilitate a clear description of the technical solutions in the embodiments of this application, the terms "first" and "second" are used in the embodiments of this application to distinguish network elements and similar items with essentially the same function. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, and that "first" and "second" are not necessarily different. Additionally, the numbering of steps in the various embodiments described in this application is only for distinguishing different steps and is not used to limit the order of steps. For example, step 201 may occur before step 202, or may occur after step 202, or may occur simultaneously with step 202.

[0045] References to "one embodiment" or "some embodiments" in the embodiments described in this application mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0046] The following detailed embodiments further illustrate the objectives, technical solutions, and beneficial effects of this application. It should be understood that the following are merely specific embodiments of this application and are not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made based on the technical solutions of this application should be included within the scope of protection of this application.

[0047] In the various embodiments of this application, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of different embodiments are consistent and can be referenced by each other. The technical features of different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0048] The method provided in this application can be applied to various communication systems, such as Internet of Things (IoT) systems, narrowband Internet of Things (NB-IoT) systems, long-term evolution (LTE) systems, 5th-generation (5G) communication systems, new radio (NR) systems, or new communication systems emerging in future communication developments. IoT networks may include, but are not limited to, vehicle-to-everything (V2X) networks. Communication methods in V2X systems can be collectively referred to as vehicle-to-everything (V2X), where X can represent anything. For example, V2X may include: vehicle-to-vehicle (V2V) communication, vehicle-to-infrastructure (V2I) communication, vehicle-to-pedestrian (V2P) communication, or vehicle-to-network (V2N) communication, etc. The method provided in this application embodiment can also be applied to non-terrestrial network (NTN) communication (also known as non-land network communication), or scenarios where NTN and terrestrial network (TN) are integrated.

[0049] The method provided in this application can be applied to wireless local area network (WLAN) systems, such as Wi-Fi. The method provided in this application can also be applied to the Institute of Electrical and Electronics Engineers (IEEE) 802.11 series protocols, such as the 802.11be protocol, the 802.11bn protocol, or next-generation protocols of the 802.11bn protocol, etc., and will not be listed individually.

[0050] The basic architecture of the communication system provided in the embodiments of this application is described below, such as... Figure 1 As shown, the network architecture includes: a terminal section, an access network (AN) section, and a core network section. Optionally, this network architecture may also include a data network (DN) section and / or application network elements. The terminal can communicate with the AN section via the air interface, and the AN section can communicate with the core network via a backhaul link. The following sections will discuss these aspects separately. Figure 1This section introduces the various parts involved in the system architecture.

[0051] To facilitate understanding of the embodiments of this application, Figure 1 The 5G network architecture shown is used as an example to introduce the communication system. For example, you can refer to the 3rd Generation Partnership Project (3GPP) technical specifications (TS) 23.501. The functions of each network element can also be found in other 3GPP technical specifications. The following section combines... Figure 1 A brief description is provided of the devices that may be involved in the various embodiments of this application. For example... Figure 1 As shown,

[0052] A terminal device, also known as user equipment (UE), is a device with wireless transceiver capabilities. It can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; on water (such as on ships); and in the air (e.g., on airplanes, balloons, and satellites). Terminals can include mobile phones, tablets, computers with wireless transceiver capabilities, virtual reality (VR) terminals, augmented reality (AR) terminals, wireless terminals in industrial control, self-driving, remote medical care, smart grids, transportation safety, smart cities, smart homes, and the Internet of Things (IoT), among others.

[0053] The AN portion includes AN devices. These AN devices are used in mobile communication systems to connect terminals to the wireless network. As nodes in the radio access network, AN devices can also be referred to as access network elements, base stations, radio access network (RAN) nodes (or devices, or network elements), access points (APs), or network devices, etc. The RAN equipment in this application embodiment includes, but is not limited to: evolved universal terrestrial radio access network (E-UTRAN), next-generation base station (g nodeB, gNB), evolved node B (eNB), radio network controller (RNC), node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home evolved nodeB, or home node B, HNB), baseband unit (BBU), wireless fidelity (WiFi) access point, world interoperability for microwave access (WiMAX) base station, transmitting and receiving point (TRP), transmitting point (TP), or mobile switching center, etc. In systems employing different wireless access technologies, the names of devices with base station functions may vary. For example, in 5G communication systems, they are called RAN or gNB (5G NodeB); in LTE systems, they are called evolved NodeB (eNB or eNodeB); and in third-generation (3G) communication systems, they are called Node B, etc. In some deployments of AN (Anti-Network Array) devices, the AN device can include centralized units (CU) and distributed units (DU). CU and DU can be set up separately or included in the same network element, such as the baseband unit (BBU). In other deployments of AN devices, the CU can also be divided into CU-control plane (CP) and CU-user plane (UP), etc.In some deployments of the AN device, the AN device may also include an antenna unit (RU), which may be included in a radio frequency device or radio frequency unit, such as a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH). It is understood that the AN device can be a CU, a DU, or a device including CU and DU nodes. Furthermore, the CU may be classified as an access network device in the access network RAN, or it may be classified as an access network device in the core network CN; no limitation is made here. In some deployments of the AN device, the AN device may be an open radio access network (ORAN) architecture, a cloud radio access network (cloud RAN), etc. ORAN can also be called a virtualized RAN. For example, when the AN device is an ORAN architecture, the AN device in this embodiment of the application may be an access network element in the ORAN, or a module of an access network element, etc. In the ORAN system, CU can also be called open (O)-CU, DU can also be called O-DU, CU-CP can also be called O-CU-CP, CU-UP can also be called O-CU-UP, and RU can also be called O-RU. For ease of description, this application uses CU, CU-CP, CU-UP, DU, and RU as examples. Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software modules and hardware modules.

[0054] A Data Network (DN) is a network located outside the mobile communication system that provides services to users. For example, a DN can be a packet data network (PDN), such as the Internet, Internet Protocol Multimedia Service (IMS) networks, certain application-specific data networks, Ethernet, Internet Protocol (IP) local area networks, etc. This application embodiment does not limit this to any particular type. Multiple services can be deployed on a DN, providing data, voice, and SMS services to terminals. A DN can have multiple application servers (AS), each of which can provide at least one service.

[0055] Application network elements primarily support interaction with the 3GPP core network to provide services, such as influencing data routing decisions, policy control functions, or providing third-party services to the network side. In 5G communication systems, this application network element can be an application function (AF) network element. In future communication systems, the application network element can still be an AF network element, or it can have other names; this application embodiment does not limit this.

[0056] The network elements in the core network can be divided into two categories: user plane function network elements (also referred to as user plane network elements) and control plane function network elements (also referred to as control plane network elements). The control plane function network elements include access management network elements or data management network elements, etc.

[0057] The user plane network element is responsible for forwarding and receiving user data in the terminal. It can receive user data from the data network and transmit it to the terminal through the access network equipment; the user plane network element can also receive user data from the terminal through the access network equipment and forward it to the data network. In a 5G communication system, this user plane network element can be a user plane function (UPF) network element. In future communication systems, the user plane network element can still be a UPF network element, or it can have other names; this application embodiment does not limit this.

[0058] The access management network element is a control plane network element provided by the operator's network, responsible for access control and mobility management of terminal access to the operator's network. This includes functions such as mobility state management, allocation of temporary user identities, authentication, and user management. In 5G communication systems, this access management network element can be an access and mobility management function (AMF) network element. In future communication systems, the access management network element may still be an AMF network element, or it may have other names; this application does not limit the specific name used.

[0059] The data management network element is used for generating authentication trust states, processing user identifiers (such as storing and managing permanent user identities), access control, and managing subscription data. In 5G communication systems, this data management network element can be a unified data management (UDM) network element. In future communication systems, unified data management can still be a UDM network element, or it can have other names; this application embodiment does not limit this.

[0060] The above mainly introduces the network elements that may be involved in various embodiments of this application. Additionally... Figure 1Other network elements are also involved, but will not be discussed in detail here. For example, the core network may also include session management function (SMF) network elements, policy control function (PCF) network elements, and unified data repository (UDR) network elements. Figure 1 (Not shown in the image) Network elements with network repository function (NRF), network exposure function (NEF), authentication server function (AUSF), network slice selection function (NSSF), etc.

[0061] Figure 1 The document also demonstrates the interfaces between multiple communication devices in the communication system. For example, N1, N2, N3, N4, N6, N9, Nnnsf, Nnef, Nnrf, Nausf, Namf, Npcf, Nudm, Naf, Nsmf, etc., are interface sequence numbers, which can be found in 3GPP technical specifications (TS) 23.501, and are not limited here. Among them, Nnnsf, Nnef, Nnrf, Nausf, Namf, Npcf, Nudm, Naf, Nsmf, etc., are service interfaces provided by NSSF, NEF, NRF, AUSF, AMF, PCF, UDM, AF, and SMF, respectively, used to invoke the corresponding service operations.

[0062] To facilitate understanding of the content of this solution, some terms used in the embodiments of this application will be explained below, so that those skilled in the art can understand them. This part is only for the purpose of understanding and should not be regarded as a specific limitation of this application.

[0063] Ambient Internet of Things (A-IoT), also known as passive IoT, focuses on harvesting energy from the environment for data communication. It aims to provide a battery-free, low-power, low-complexity, and low-cost IoT solution. A-IoT technology is an ultra-low-power, ultra-low-complexity IoT technology defined by the 3GPP plenary meeting. It can be understood as an extension of passive radio frequency identification (RFID) in 3GPP. Although it shares some principles with RFID, such as similar inventory management processes, 3GPP introduces more value scenarios. A-IoT technology can be used to implement one or more of the following services: inventory, location, sensing, or command. Command services can include one or more of the following: read, write, lock, or kill. In terms of application scope, A-IoT technology can be applied to scenarios such as logistics, warehousing, industrial manufacturing, identity recognition, or environmental monitoring; this application does not limit this application. The topology of an A-IoT-based communication system is described below as an example.

[0064] Topology 1: See Figure 2 2-1, in Figure 2 In section 2-1, the access network device acts as a reader / writer. The access network device and the A-IoT device communicate directly and bidirectionally. Communication between the access network device and the A-IoT device includes A-IoT data and / or signaling.

[0065] Topology 2: See Figure 2 2-2, in Figure 2 In topology 2-2, the intermediate node acts as a reader / writer. Access network devices communicate indirectly with A-IoT devices through the intermediate node. In topology 2, access network devices and A-IoT devices communicate bidirectionally through the intermediate node. The intermediate node can be a relay capable of implementing A-IoT, such as an IAB node, a terminal, or a repeater; this application does not limit the form of the intermediate node.

[0066] Topology 3: See Figure 2 2-3, in Figure 2 In topologies 2-3, the access network device acts as a reader / writer. The A-IoT device sends data and / or signaling to the access network device and can also receive data and / or signaling from the auxiliary node. Alternatively, the A-IoT device receives data and / or signaling from the access network device and can also send data and / or signaling to the auxiliary node. In topology 3, the auxiliary node can be a relay capable of implementing A-IoT, such as an IAB node, a terminal, or a repeater, etc. This application does not limit the form of the intermediate node.

[0067] Topology 4: See Figure 2 2-4, in Figure 2 In sections 2-4, the terminal acts as a reader / writer. The A-IoT device and the terminal communicate bidirectionally. Communication between the terminal and the A-IoT device includes A-IoT data and / or signaling.

[0068] It should be pointed out that, Figure 2 The number of each device is merely illustrative and should not be considered a specific limitation of this application. Optionally, Figure 2 It may also include the core network portion ( Figure 1 (Not shown), the terminal accesses the core network through the access network, and the core network communicates with the DN or application network elements. For details, please refer to [reference needed]. Figure 2 This will not be elaborated upon here.

[0069] Next, let's discuss... Figure 1 The system architecture involves a detailed description of each device.

[0070] I. Reader

[0071] A reader, also known as a data reader, is a device with read and write capabilities. A reader can communicate with A-IoT devices non-contactly, such as via broadcast. In this way, the reader can read information from the A-IoT device and / or write information that needs to be stored into the A-IoT device.

[0072] Among them, the reader / writer can be Figure 1 Regarding the terminal or access network equipment in the application, this application does not limit the form of the reader / writer. For example, the device used to implement the function of the reader / writer can be a reader / writer itself; it can also be a device that supports the reader / writer in implementing this function, such as a chip system. This device can be installed in the reader / writer or used in conjunction with the reader / writer.

[0073] Optionally, when the terminal acts as a reader, it may be referred to as a UE reader. When the access network device acts as a reader, it may be referred to as an A-IOT RAN node. This application does not limit the names used.

[0074] II. A-IoT Devices

[0075] Unlike communication devices in traditional cellular networks, A-IoT devices do not have a radio resource control (RRC) state and do not need to establish an RRC connection. Generally, A-IoT devices can communicate with readers through backscattering technology, or they can actively generate carriers (or have carrier recovery capabilities), without relying on an external carrier source for communication, thus possessing active communication capabilities.

[0076] For A-IoT devices that communicate with a reader via backscattering technology, the A-IoT device can be charged by an RF signal or obtain energy through energy harvesting (light energy, heat energy, kinetic energy, etc.). In this case, the A-IoT device can be called a passive A-IoT device or a semi-passive A-IoT device. A passive A-IoT device can also be called device 1 or device A, and a semi-passive A-IoT device can also be called device 2a or device A (device B). This application does not limit the name.

[0077] For A-IoT devices that actively generate carriers, the A-IoT device can be called an active A-IoT device. An active A-IoT device can also be called device 2b or device B.

[0078] Among them, A-IoT devices can be tags, Figure 1 The device can be a terminal or any other form, such as a sensor, license plate, or nameplate. The embodiments of this application do not limit the form of the A-IoT device. For example, the device used to implement the functions of the A-IoT device can be the A-IoT device itself; it can also be a device capable of supporting the A-IoT device to implement that function, such as a chip system. This device can be installed in the A-IoT device or used in conjunction with the A-IoT device.

[0079] III. Core Network Section

[0080] As an example, the network elements in the core network section include not only Figure 1 The network elements in the network can also include tag management function (TMF) network elements. TMF network elements can also be called ambient IoT function (AIoTF) network elements, ambient IoT management function (AIoTMF), IoT management function (IMF), or ambient IoT management function (AITMF), with no specific name limitation. In this case, the TMF supports / enables AIoT. For example, the TMF can also be used to perform functions such as managing A-IoT devices, processing A-IoT device data, and routing A-IoT device data. This can also be considered as the TMF being deployed independently from the access management network elements.

[0081] As another example, network elements in the core network section can be referenced. Figure 1 The description continues. In this scenario, the access management network element can also support / enable AIoT. For example, the access management network element can also be used to perform functions such as managing A-IoT devices, processing A-IoT device data, and routing A-IoT device data. This can also be seen as the access management network element being co-deployed with the TMF.

[0082] As another example, Figure 1 In the core network portion, the access management network element is replaced with the TMF (Transportation Management Module), while other aspects remain unchanged. In this configuration, the TMF can also handle access control and mobility management for terminal access to the operator's network, including functions such as mobility state management, allocation of temporary user identities, authentication, and user management. This can also be considered as the TMF being co-deployed with the access management network element.

[0083] Optionally, the TMF can have an interface with the reader, or the TMF can interact with the reader through the access management network element.

[0084] Optionally, when network elements in the core network, such as AMF or TMF, are applied to A-IoT technology, the network elements in the core network can be called A-IoT CN.

[0085] Understandable, Figure 2 or Figure 3 The network elements or functions shown can be network components in hardware devices, software functions running on dedicated hardware, virtualization functions instantiated on a platform (e.g., a cloud platform), or a combination of both. One possible implementation is that the aforementioned network element or function can be implemented by a single device, multiple devices working together, or a functional module within a single device; this application embodiment does not specifically limit this. Furthermore, for ease of description, the term "network element" can be omitted below. For example, in this application embodiment, the AMF network element and AMF have the same meaning; the word "network element" is omitted for convenience, and the rest are similar. It should also be noted that this application embodiment does not limit the names of each network element in the communication system. For example, in different communication systems, each network element can have other names; or, for example, when multiple network elements are integrated into the same physical device, that physical device can also have other names. For example, each network element can also be called a device, node, or apparatus. For example, a TMF network element can be called a TMF device, TMF node, or TMF apparatus, etc., without limitation here.

[0086] The following describes the communication methods between the different devices involved in this application.

[0087] Access network devices may have an Xn interface, through which they can transmit information. Optionally, information exchanged on the NG interface is included in the XnAP message. Access network devices may not have an Xn interface, but can transmit information through the NG interface (or N2 interface). Optionally, information exchanged on the NG interface (such as second or first information) is included in the Next Generation Application Protocol (NGAP) message. For example, if the core network device is an AMF, a chip within an AMF, a TMF, or a chip within a TMF, access network devices can transmit information through the NG interface. Alternatively, access network devices can transmit information through an interface defined for both the core network device and the access network device. Optionally, information exchanged on this interface (i.e., the interface defined for both the core network device and the access network device) (such as first information) is included in the XXAP message. Here, XXAP can be NGAP, a simplified version of NGAP, or an application protocol defined for this interface, used to provide signaling services between the access network device and the core network device. For example, core network equipment is a TMF or a chip within a TMF, and access network equipment can transmit information through an NG interface, or through an interface defined for the TMF and access network equipment.

[0088] Terminals can communicate via the PC5 interface. Alternatively, terminals can communicate via access network equipment.

[0089] Access network devices and terminals can communicate via the air interface. For example, downlink transmission information can be carried in downlink control information (DCI), media access control-control element (MAC CE), RRC signaling, or other signaling, without limitation. Similarly, uplink transmission information can be carried in uplink control information (UCI), RRC signaling, or other messages, without limitation. The air interface can be, for example, a UU interface.

[0090] The embodiments of this application will be described in detail below using 5G as an example.

[0091] See Figure 3 , Figure 3 This is a flowchart illustrating a communication method provided in an embodiment of this application. Wherein, in Figure 3In this application, the first device can be an access network device or a chip within an access network device, and can function as a reader / writer. The second device can be a terminal, a chip within a terminal, an access network device, or a chip within an access network device, and can function as an excitation source. Optionally, in this application, the terminal serving as the excitation source can be referred to as a UE helper or a UE_CW node. The third device can be a core network device or a chip within a core network device. For example, the third device can be an AMF, TMF, a chip within an AMF, or a chip within a TMF. The fourth device is an OAM device or a chip within an OAM device. For ease of description, the example of the first device being a reader / writer, the second device being a terminal or access network device, the third device being a core network device, and the fourth device being an OAM device is used, and should not be considered a limitation of this application. Figure 3 As shown, the method includes, but is not limited to, the following steps:

[0092] 301. The core network equipment sends a service request message, which includes fourth information and / or the identifier of the A-IOT device.

[0093] Accordingly, the reader receives service request messages.

[0094] Optionally, the fourth information is used to indicate the first area. The first area includes the area where the terminal or access network equipment transmits carriers and / or service areas. A carrier refers to a single subcarrier and / or multiple subcarriers. A service area may refer to one or more of the following: inventory service area, positioning service area, sensing service area, or command service area.

[0095] Optionally, a region mentioned in this application (such as the region where a terminal or access network device transmits a carrier or a service region) may include at least one of the following: latitude and longitude, a range of latitude and longitude, coordinate values, a range of coordinate values, a cell identifier, a reader identifier, a tracking area (TA) identifier, a closed access group ID (CAG ID), or a network identifier. The cell identifier may be a physical cell identifier (PCI), a logical cell identifier, or a cell global identity (CGI). The tracking area identifier may be a tracking area identity (TAI) or a tracking area code (TAC).

[0096] Optionally, the service request message includes the identifier of the A-IoT device. This can be understood as the service request message including an identifier range, which includes the identifiers of one or more A-IoT devices. This allows us to determine which one or more A-IoT devices are performing the operation, or a group of A-IoT devices are performing the operation, or all A-IoT devices are performing the operation. Optionally, the identifier range can be represented by a prefix of the A-IoT device identifier or by a group identifier. The prefix of the A-IoT device identifier can also be called mask information. Alternatively, including the identifier of the A-IoT device in the service request message can be understood as the service request message including the region where the A-IoT device is located.

[0097] Optionally, the service request message can originate from a core network device or a server. For example, the core network device or server can generate, determine, or obtain the service request message. As one example, the service request message originates from a server, which can send the service request message (including fourth information and / or the identifier of the A-IoT device) to the core network device. In this case, the core network device can also carry the identifier of the access network device in the service request message. As another example, the service request message originates from a core network device, which can carry fourth information and / or the identifier of the A-IoT device in the service request message. Optionally, the core network device can also add the identifier of the access network device to the service request message. Optionally, the identifier of the access network device can be a global NG-RAN node ID.

[0098] Optionally, the service request message originates from a server, and the core network device is an AMF or a chip within an AMF. The transmission path between the server and the core network device can be: server (-> UPF) -> TMF -> AMF, or server (-> UPF) -> AMF. If the core network device is a TMF or a chip within a TMF, the transmission path between the server and the core network device can be: server (-> UPF) -> TMF. In this application, "->" indicates the transmission direction.

[0099] It should be noted that the above describes the transmission path involved in downlink transmission between the server and the core network equipment. The transmission path involved in uplink transmission between the server and the core network equipment is similar, except that the transmission direction is reversed, and will not be elaborated here.

[0100] Optionally, the server can be an external server, such as an IoT server, a user / factory server, etc. Alternatively, the server can be a passive IoT (P-IoT), AF, AS, or environmental IoT application function (A-IoTAF or P-IoT AF).

[0101] Optionally, step 301 may be an optional step.

[0102] 302. The reader obtains second information, which includes at least one of the following: whether the terminal has the ability to transmit a carrier, whether the terminal has the ability to transmit a single subcarrier, or whether the terminal has the ability to transmit multiple subcarriers; or, the second information includes at least one of the following: whether the access network device has the ability to transmit a carrier, whether the access network device has the ability to transmit a single subcarrier, or whether the access network device has the ability to transmit multiple subcarriers.

[0103] The reader can acquire the second information in several ways, specifically:

[0104] ① The reader receives second information from the terminal or access network device.

[0105] Optionally, the second information may also include the identifier of the terminal or access network device. The terminal identifier may be, for example, a subscription permanent identifier (SUPI), a radionetwork temporary identifier (RNTI), a permanent equipment identifier (PEI), a subscription concealed identifier (SUCI), or a 5G-globally unique temporary identity (5G-GUTI), etc.

[0106] Optionally, before receiving the second information from the terminal, the reader may also send third information to the terminal. Optionally, the third information may also include the terminal's identifier. Alternatively, before receiving the second information from the access network device, the reader may also send third information to the access network device. Optionally, the third information may also include the access network device's identifier. The third information is used to obtain the second information. For example, the third information is used to request or query the second information.

[0107] For example, when the second information comes from an access network device, the reader can receive the identifier of the access network device from the core network device or the OAM device. For instance, the aforementioned service request message may also include the identifier of the access network device.

[0108] ② The reader receives the second information from the core network equipment.

[0109] Optionally, the second information can be carried in the service request message. In this case, one or more steps from steps 303 to 305 can be executed after step 301.

[0110] ③ The reader receives second information from the OAM device. Optionally, the second information may also include the identifier of the terminal or access network device.

[0111] Step 302 can be an optional step. For example, if the second information includes the terminal or access network device's ability to transmit a carrier, steps 303 and 304 can also be performed, and optionally, step 305 can also be performed. Alternatively, if the second information includes that the terminal or access network device does not have the ability to transmit a carrier, a device that supports transmitting a carrier can be selected again, and the subsequent process can refer to steps 303 to 305.

[0112] Optionally, there is no necessary order of execution between steps 301 and 302. For example, step 301 can be executed before or after step 302. Alternatively, steps 301 and 302 can be executed simultaneously.

[0113] Optionally, when the second information comes from the access network device, step 302 can be replaced by: the access network device sending the second information (e.g., the access network device sending the second information to the core network device), and the core network device sending the seventh information (e.g., the core network device sending the seventh information to the reader / writer). The seventh information indicates one or more devices that are permitted to transmit a carrier, and the one or more devices include the access network device. Optionally, 'the access network device sending the second information' can be performed before or after step 301, or simultaneously.

[0114] Optionally, the seventh information may include the identifiers of one or more devices. The one or more devices may be access network equipment or chips within access network equipment. Optionally, the identifier of the device may be a global NG-RAN node identifier.

[0115] Optionally, the seventh information can be carried in the business request message. In this case, one or more of the steps 303 to 305 can be executed after step 301.

[0116] Optionally, when the second information comes from the terminal, step 302 can be replaced by: the terminal sending the second information (e.g., the terminal sending the second information to the core network device), the core network device sending the eighth information (the core network device sending the eighth information to the reader / writer), the eighth information indicating one or more devices that are allowed to transmit the carrier, the one or more devices including the terminal. Optionally, 'the terminal sending the second information' can be performed before or after step 301, or simultaneously.

[0117] Optionally, the eighth information may include the identifiers of one or more devices, which may be a terminal or a chip within a terminal. The device identifier may be SUPI, RNTI, PEI, SUCI, or 5G-GUTI, etc.

[0118] Optionally, the eighth information can be carried in the business request message. In this case, one or more of the steps 303 to 305 can be executed after step 301.

[0119] Optionally, the eighth information may also indicate one or more other devices that are not allowed to transmit carriers. For example, the eighth information may also include the identifiers of one or more other devices, such as SUPI, RNTI, PEI, SUCI, or 5G-GUTI. These other one or more devices are devices excluding the one or more other devices, and may be a terminal or a chip within a terminal.

[0120] 303. The reader sends first information, which indicates the transmission of a carrier. The first information includes at least one of the following: transmission power, transmission start time, transmission end time, transmission period, duration, or a first area, where the first area includes the area where the terminal or access network device transmits the carrier and / or the service area.

[0121] Accordingly, the terminal or access network device receives the first information.

[0122] Optionally, the first information indicating the transmission of a carrier can be understood as: the first information instructs the terminal or access network device to transmit a carrier.

[0123] For example, the reader obtains second information (including at least one of the following: whether the terminal has the ability to transmit a carrier, whether the terminal has the ability to transmit a single subcarrier, or whether the terminal has the ability to transmit multiple subcarriers), or the reader obtains eighth information (indicating one or more devices that are allowed to transmit a carrier, the one or more devices including the terminal), and the first information instructs the terminal to transmit a carrier.

[0124] For example, the reader acquires second information (including at least one of the following: whether the access network device has the capability to transmit a carrier, whether the access network device has the capability to transmit a single subcarrier, or whether the access network device has the capability to transmit multiple subcarriers), or the reader acquires seventh information (indicating one or more devices that are permitted to transmit a carrier, the one or more devices including the access network device), and the first information instructs the access network device to transmit a carrier.

[0125] Optionally, when the carrier refers to a single subcarrier and / or multiple subcarriers, that is, the first information can indicate the transmission of a single subcarrier and / or multiple subcarriers, this can be regarded as the first information being carrier configuration information in single-subcarrier mode and / or multi-subcarrier mode. In other words, the first information indicating the transmission of a single subcarrier can be regarded as carrier configuration information in single-subcarrier mode. The first information indicating the transmission of multiple subcarriers can be regarded as carrier configuration information in multi-subcarrier mode.

[0126] Optionally, the first information indicates the transmission of multiple subcarriers. The first information may also include at least one of the following: frequency domain location, number of subcarriers, guard interval time, or frequency hopping mode. Frequency hopping mode refers to the terminal or access network equipment transmitting different subcarriers in different time domains (or time units), so that different subcarriers occupy different times (different subcarriers are in different time domains), thereby improving resistance to frequency selective fading of the channel, improving the ability to reflect signals, and improving anti-interference capabilities.

[0127] Optionally, the transmission power in the first information can be understood as: the power of the carrier transmitted by the terminal or access network device. The transmission start time in the first information can be understood as: the start time of the terminal or access network device transmitting the carrier. The transmission end time in the first information can be understood as: the end time of the terminal or access network device transmitting the carrier. The transmission period in the first information can be understood as: the period of the terminal or access network device transmitting the carrier. The duration in the first information can be understood as: the duration of the terminal or access network device transmitting the carrier.

[0128] Optionally, the first region includes the area where the terminal or access network device transmits a carrier. This can be understood as: the first region completely overlaps with the area where the terminal or access network device transmits a carrier, or the area where the terminal or access network device transmits a carrier is located within the first region. Similarly, the first region includes a service area. This can be understood as: the first region completely overlaps with the service area, or the service area is located within the first region. Optionally, the area where the terminal or access network device transmits a carrier may belong to the service area.

[0129] The configuration method for the first information is described below.

[0130] For example, the access network device configures first information for the terminal. For instance, the first device is the access network device or a chip within the access network device, and the first device configures the first information for the second device (the terminal or a chip within the terminal). In this case, the first information can be configured via DCI, MAC CE, RRC messages, or other messages. Optionally, multiple subcarriers can be configured with a frequency hopping mode, which can be configured via DCI, MAC CE, RRC messages, or other messages.

[0131] For example, an access network device configures first information for other access network devices. For instance, the first device configures the first information for an access network device or a chip within an access network device, and the first device configures the first information for a second device (an access network device or a chip within an access network device). In this case, the first information can be configured via an XnAP message or other messages. Optionally, multiple subcarriers can be configured with a frequency hopping mode, which can be configured via an XnAP message or other messages.

[0132] For example, the core network equipment configures first information for the terminal. For instance, a third device is the core network equipment or a chip within the core network equipment, and the first device configures the first information for a second device (the terminal or a chip within the terminal). In this case, the first information can be configured via non-access stratum (NAS) messages, protocol data unit (PDU) sessions, or other messages. Optionally, multiple subcarriers can be configured with a frequency hopping mode, which can be configured via NAS messages or PDU sessions.

[0133] For example, the core network device configures first information for the access network device. For instance, a third device is the core network device or a chip within the core network device, and a first device configures the first information for a second device (the access network device or a chip within the access network device). In this case, the first information can be configured via NGAP messages, XXAP messages, or other messages. Optionally, multiple subcarriers can be configured with a frequency hopping mode, which can be configured via NGAP messages, XXAP messages, or other messages.

[0134] 304. The terminal or access network device transmits a carrier based on the first information.

[0135] Accordingly, A-IoT devices can transmit reflected signals based on a carrier wave. For example, an A-IoT device receives a downlink signal from a reader and then transmits an uplink signal in response to the downlink signal based on the carrier wave.

[0136] Optionally, the first information instructs the terminal to transmit a carrier wave, and the terminal transmits the carrier wave based on the first information. Alternatively, the first information instructs the access network device to stop transmitting the carrier wave, and the access network device transmits the carrier wave based on the first information.

[0137] Optionally, step 305 may also be performed after step 304.

[0138] 305. The reader sends the sixth message, which indicates that the carrier wave should be stopped.

[0139] Accordingly, the terminal or access network device stops transmitting the carrier based on the sixth information.

[0140] Optionally, the sixth information indicating to stop transmitting the carrier can be understood as: the sixth information instructs the terminal or access network device to stop transmitting the carrier. The sixth information instructs the terminal to stop transmitting the carrier, and the terminal stops transmitting the carrier based on the sixth information. The sixth information instructs the access network device to stop transmitting the carrier, and the access network device stops transmitting the carrier based on the sixth information.

[0141] Optionally, any one or more of the above steps can be a single embodiment. For example, steps 303 and 304 can be a single embodiment. Alternatively, steps 302 to 304 can be a single embodiment. Alternatively, steps 302 to 305 can be a single embodiment. Alternatively, steps 301 to 304 can be a single embodiment. Alternatively, steps 301 to 305 can be a single embodiment.

[0142] Optionally, the above Figure 3 The processing performed by a single execution entity (such as a terminal or access network device) shown in the illustrated embodiments can also be divided into multiple execution entities, which can be logically and / or physically separated. For example, the processing performed by the access network device can be divided into execution by at least one of CU, DU, and RU.

[0143] For example, step 301 above can be understood as: the CU of the reader / writer receives operation information from the core network device.

[0144] For example, step 302 above can be understood as: the reader's DU receives second information from the access network device's DU. Alternatively, the reader's DU receives second information from the reader's CU, and the reader's CU receives second information from the core network device or OAM device.

[0145] For example, step 303 above can be understood as: the reader's DU sends the first information to the access network device's DU.

[0146] For example, step 304 above can be understood as: the DU of the access network device transmits a carrier based on the first information.

[0147] For example, step 305 above can be understood as: the DU of the access network device stops transmitting the carrier based on the sixth information.

[0148] Optionally, when step 302 above is replaced by 'the access network device sends second information (e.g., the access network device sends second information to the core network device), and the core network device sends seventh information (e.g., the core network device sends seventh information to the reader / writer)', it can be understood as: the CU of the access network device sends second information to the core network device, and the core network device sends seventh information to the CU of the reader / writer.

[0149] Optionally, when step 302 above is replaced by 'the terminal sends the second information (e.g., the terminal sends the second information to the core network device), and the core network device sends the eighth information (the core network device sends the eighth information to the reader / writer)', it can be understood as: the terminal sends the second information to the core network device, and the core network device sends the eighth information to the CU of the reader / writer.

[0150] Optionally, in this application, the CU and DU in an access network device transmit information through the F1 interface, and the information transmitted on the F1 interface can be included in the F1AP message. F1AP is the application protocol of the F1 interface.

[0151] Optionally, the above Figure 4 The terminal in the illustrated embodiment can be connected to a reader or other devices, such as the sixth device, which is an access network device or a chip in the access network device.

[0152] Optionally, when a terminal is connected to a reader / writer, the reader / writer and the terminal transmit information over the air interface.

[0153] Optionally, when the terminal is connected to the sixth device, the reader and the terminal transmit information through the sixth device.

[0154] For example, the reader and the sixth device can have an Xn interface. The reader can transmit information to the sixth device through the Xn interface, and the sixth device can transmit information to the terminal through the air interface.

[0155] For example, if the reader and the sixth device do not have an Xn interface, the reader can transmit information to the sixth device through the core network equipment, and the sixth device can transmit information to the terminal through the air interface. If the core network equipment is an AMF or a chip within an AMF, the reader can transmit information to the sixth device through the NG interface. If the core network equipment is a TMF or a chip within a TMF, the reader can transmit information to the sixth device through the NG interface. Alternatively, the reader can transmit information to the sixth device through an interface defined for both the TMF and the reader. Optionally, the information exchanged on this interface (i.e., the interface defined for both the TMF and the reader) (such as first information) is included in the XXAP message.

[0156] See Figure 4 , Figure 4 This is a flowchart illustrating another communication method provided in an embodiment of this application. Wherein, in Figure 4In this application, the first device can be an access network device or a chip within an access network device; the first device does not function as a reader / writer. The second device is an access network device or a chip within an access network device; the second device can function as an excitation source. The third device can be a core network device or a chip within a core network device. For example, the third device can be an AMF, TMF, a chip within an AMF, or a chip within a TMF. The fifth device is a terminal or a chip within a terminal; the fifth device is a reader / writer and is connected to the first device. For ease of description, this application uses access network device 1 as the first device, access network device 2 as the second device, core network device as the third device, and a terminal as the fifth device as an example; this should not be considered a limitation of the application. Figure 4 As shown, the method includes, but is not limited to, the following steps:

[0157] 401. Access network device 2 sends second information, the second information including at least one of the following: whether access network device 2 has the capability to transmit a carrier, whether access network device 2 has the capability to transmit a single subcarrier, or whether access network device 2 has the capability to transmit multiple subcarriers.

[0158] Accordingly, the core network equipment receives the second information.

[0159] 402. The terminal sends the ninth message, which indicates whether the terminal supports the ability to communicate with A-IoT devices.

[0160] Accordingly, the core network equipment receives the sixth piece of information.

[0161] Optionally, the ninth information indicating whether the terminal supports the ability to communicate with A-IoT devices can be understood as: the ninth information indicating whether the terminal has A-IoT reading (reader) capability.

[0162] Step 402 can be an optional step.

[0163] Optionally, if the ninth information indicates that the terminal supports the ability to communicate with A-IoT devices, steps 403 to 405 can also be executed; alternatively, step 406 can also be executed. If the ninth information indicates that the terminal does not support the ability to communicate with A-IoT devices, a device capable of communicating with A-IoT devices can be selected again, and subsequent processes can refer to steps 403 to 406.

[0164] Optionally, there is no necessary order of execution between steps 401 and 402. For example, step 401 may be executed before or after step 402. Alternatively, steps 401 and 402 may be executed simultaneously.

[0165] Optionally, after step 402, the core network device sends a service request message. The service request message includes fourth information and / or the identifier of the A-IOT device. Optionally, the service request message also includes seventh information. The fourth information is used to indicate a first area. The first area includes the area where the access network device 2 transmits carriers and / or the service area. The seventh information indicates one or more devices that are allowed to transmit carriers, and the one or more devices include the access network device 2. The service request message is similar to the description in step 301 above, and the seventh information is similar to the description in step 302 above, so it will not be repeated here. Here, based on the access network device 1's perception of the content in the service request message, two situations can be divided: Situation 1: The access network device 1 cannot perceive the content in the service request message, for example, the service request message is carried in the data packet or NAS message of the PDU session. In this case, after step 402, one or more steps from steps 403 and 404 may be included. Situation 2: The access network device 2 can perceive the content in the service request message, for example, the service request message is not carried in the data packet or NAS message of the PDU session. At this point, after step 402, one or more steps from steps 404 to 405 may be included. Optionally, in case 2, the service request message also includes tenth information, which indicates that one or more devices are allowed to act as readers. Optionally, the one or more devices here include terminals. For example, the tenth information may include identifiers of one or more devices allowed to act as readers. Or it can be described as: the tenth information includes a list (such as called UEreaderlist) that includes identifiers of one or more devices allowed to act as readers.

[0166] 403. Core network equipment sends data packets or NAS messages for PDU sessions. The data packets or NAS messages for PDU sessions include service request messages.

[0167] Accordingly, the terminal receives data packets or NAS messages from the PDU session.

[0168] 404. The terminal sends a fifth message, which includes at least one of the following: service start indication, service start time, or service cycle information.

[0169] Accordingly, access network device 1 receives the fifth information.

[0170] Optionally, the service start instruction may be understood as one or more of the following: inventory service start instruction, positioning service start instruction, sensing service start instruction, or command service start instruction.

[0171] Optionally, the service start time can be understood as one or more of the following: inventory service start time, positioning service start time, sensing service start time, or command service start time.

[0172] Optionally, business cycle information can be understood as one or more of the following: inventory business cycle information, positioning business cycle information, sensing business cycle information, or command business cycle information.

[0173] Optionally, the business cycle information may include one or more of the following: business end time, business cycle, or business duration. Optionally, the business end time may be understood as one or more of the following: inventory business end time, location business end time, sensing business end time, or command business end time. Optionally, the business cycle may be understood as one or more of the following: inventory business cycle, location business cycle, sensing business cycle, or command business cycle. Optionally, the business duration may be understood as one or more of the following: inventory business duration, location business duration, sensing business duration, or command business duration.

[0174] Step 404 is an optional step.

[0175] 405. Core network equipment sends service request messages.

[0176] Accordingly, access network device 1 receives service request messages.

[0177] 406. Access network device 1 is selected as a reader / writer.

[0178] For example, access network device 1 selects a terminal as a reader / writer based on the tenth information.

[0179] Step 406 is optional. For example, if the tenth information indicates that one device (i.e., a terminal) is allowed to act as a reader / writer, step 406 may not be executed. If the tenth information indicates that multiple devices (including terminals) are allowed to act as readers / writers, step 406 may be executed.

[0180] 407. Access network device 1 sends a service request message.

[0181] Accordingly, the terminal receives service request messages.

[0182] Step 407 is an optional step.

[0183] 408. Access network device 1 sends first information, the first information indicating the transmission of a carrier, the first information including at least one of the following: transmission power, transmission start time, transmission end time, transmission period, duration, or a first area, the first area including the area where access network device 2 transmits the carrier and / or the service area.

[0184] Accordingly, access network device 2 receives the first information.

[0185] The first piece of information is similar to the description in step 303 above, and will not be repeated here.

[0186] 409. Access network device 2 transmits a carrier based on the first information.

[0187] Accordingly, A-IoT devices can transmit reflected signals based on a carrier wave. For example, an A-IoT device receives a downlink signal from a reader and then transmits an uplink signal in response to the downlink signal based on the carrier wave.

[0188] Optionally, step 410 may also be performed after step 409.

[0189] 410. Access network device 1 sends the sixth message, which indicates to stop transmitting the carrier.

[0190] Accordingly, access network device 2 stops transmitting carriers based on the sixth information.

[0191] The sixth piece of information is similar to the description in step 305 above, and will not be repeated here.

[0192] Optionally, any one or more of the above steps can be a single embodiment. For example, steps 408 and 409 can be a single embodiment. Alternatively, steps 408 to 410 can be a single embodiment. Alternatively, steps 404, 408, and 409 can be a single embodiment. Alternatively, steps 405, 408 to 410 can be a single embodiment, and so on, without further listing.

[0193] Optionally, the above Figure 4 The processing performed by a single execution entity (such as a terminal or access network device) in the illustrated embodiments can also be divided into multiple execution entities, which can be logically and / or physically separated. For example, the processing performed by the access network device can be divided into execution by at least one of CU, DU, and RU.

[0194] For example, step 401 above can be understood as: the CU of access network device 2 sends second information to the core network device.

[0195] For example, step 404 above can be understood as: the terminal sends the fifth information to the DU of access network device 1, and the DU of access network device 1 sends the fifth information to the CU of access network device 1.

[0196] For example, step 405 above can be understood as: the core network device sends a service request message to the CU of access network device 1.

[0197] For example, step 406 above can be understood as: the CU or DU of access network device 1 selects to act as a reader / writer device. When the DU of access network device 1 selects to act as a reader / writer device, the CU of access network device 1 can also send a service request message to the DU of access network device 1.

[0198] For example, step 407 above can be understood as: the DU of access network device 1 sends a service request message to the terminal.

[0199] For example, step 408 above can be understood as: the DU of access network device 1 sends first information to the terminal. Optionally, the CU of access network device 1 can also send the first information to the DU of access network device 1.

[0200] For example, step 409 above can be understood as: the DU of access network device 2 transmits a carrier based on the first information.

[0201] For example, step 410 above can be understood as: the DU of access network device 2 stops transmitting carriers based on the sixth information.

[0202] Optionally, step 401 above can be replaced by: access network device 1 obtaining the second information, wherein the method by which access network device 1 obtains the information can refer to step 302 above, and will not be repeated here. In this case, it can be used in conjunction with the above-mentioned case two, where the service request message in case two includes the fourth information and / or the identifier of the A-IoT device.

[0203] Optionally, the above Figure 4 In the illustrated embodiment, the second device can be a terminal or a chip within a terminal. Alternatively, the access network device 2 can be used to replace the terminal or the chip within it. In this case, the actions performed by the access network device 2 can be replaced by actions performed by the terminal or the chip within it. The difference lies in replacing the seventh information with the eighth information (indicating one or more devices that are permitted to transmit a carrier, including the terminal). The rest is similar and will not be elaborated upon here. Optionally, in this case, the execution entity of steps 408 to 409 can be replaced by the fifth device (a terminal or a chip within a terminal; the fifth device is a reader / writer). In this case, step 405 is not executed.

[0204] Optionally, when the above Figure 5 The second device in the illustrated embodiment is a terminal or a chip in a terminal, and when the access network device 2 is used to replace the terminal or the chip in the terminal, the above-mentioned... Figure 5The NGAP messages involved in the illustrated embodiments (such as the service request message in step 403 above, which are included in the NGAP messages) may also include identifiers for identifying the terminal between the core network device and access network device 1. For example, RAN UE NGAP ID and / or AMF UE NGAP ID. Alternatively, RAN UE XXAP ID and / or TMF UE XXAP ID. If the core network device is an AMF, the RAN UE NGAP ID is used by access network device 1 to uniquely identify the terminal on the NG interface, and the AMF UE NGAP ID is used by the core network device to uniquely identify the terminal on the NG interface. If the core network device is a TMF, the RAN UE NGAP ID is used by access network device 1 to uniquely identify the terminal on the NG interface or on an interface defined for both the TMF and access network device, and the TMF UE XXAP ID is used by the core network device to uniquely identify the terminal on the NG interface or on an interface defined for both the TMF and access network device.

[0205] Optionally, the packets of the PDU session are included in the NGAP message, and the RAN UE NGAP ID can be an Internet Protocol (IP) address.

[0206] See Figure 5 , Figure 5 This is a flowchart illustrating another communication method provided in an embodiment of this application. Wherein, in Figure 5 In this context, the second device can be a terminal, a chip within the terminal, an access network device, or a chip within an access network device, and can serve as an excitation source. The third device can be core network equipment or a chip within core network equipment. For example, the third device can be an AMF, a TMF, a chip within an AMF, or a chip within a TMF. For ease of description, this example uses a terminal or access network device as the second device and a core network device as the third device, and should not be construed as limiting this application. Figure 6 As shown, the method includes, but is not limited to, the following steps:

[0207] 501. The terminal or access network device sends a second piece of information, the second piece of information including at least one of the following: whether the terminal has the ability to transmit a carrier, whether the terminal has the ability to transmit a single subcarrier, or whether the terminal has the ability to transmit multiple subcarriers; or, the second piece of information includes at least one of the following: whether the access network device has the ability to transmit a carrier, whether the access network device has the ability to transmit a single subcarrier, or whether the access network device has the ability to transmit multiple subcarriers.

[0208] Accordingly, the core network equipment receives the second information.

[0209] The method by which the terminal or access network device sends the second information can be referred to in step 301, and will not be elaborated here.

[0210] Optionally, step 501 may be an optional step.

[0211] 502. The core network equipment sends a service request message, which includes fourth information and / or the identifier of the A-IOT device.

[0212] Accordingly, the reader receives service request messages. The reader can be a terminal, a chip in a terminal, an access network device, or a chip in an access network device.

[0213] The business request message is similar to the description in step 301 above, and will not be repeated here.

[0214] Optionally, step 502 may be an optional step.

[0215] Optionally, there is no necessary order of execution between steps 501 and 502. For example, step 501 may be executed before or after step 502. Alternatively, steps 501 and 502 may be executed simultaneously.

[0216] 503. The core network equipment sends first information, the first information indicating the transmission of a carrier, the first information including at least one of the following: transmission power, transmission start time, transmission end time, transmission period, duration, or a first area, the first area including the area where the terminal or access network equipment transmits the carrier.

[0217] Accordingly, the terminal or access network device receives the first information.

[0218] For step 503, please refer to step 303 above, and it will not be repeated here.

[0219] 504. The terminal or access network device transmits a carrier based on the first information.

[0220] Accordingly, A-IoT devices can transmit reflected signals based on a carrier wave. For example, an A-IoT device receives a downlink signal from a first device and then transmits an uplink signal for the downlink signal based on the carrier wave.

[0221] Optionally, step 505 may also be performed after step 504.

[0222] 505. The core network equipment sends the sixth message, which indicates that carrier transmission should be stopped.

[0223] Accordingly, the terminal or access network device stops transmitting the carrier based on the sixth information.

[0224] Optionally, the sixth information indicates to stop transmitting the carrier, which can be understood as: the sixth information instructs the terminal or access network equipment to stop transmitting the carrier. For details, please refer to step 305, which will not be elaborated here.

[0225] Optionally, any one or more of the above steps can be a single embodiment. For example, steps 503 and 504 can be a single embodiment. Alternatively, steps 503 to 505 can be a single embodiment. Alternatively, steps 502 to 504 can be a single embodiment. Alternatively, steps 502 to 505 can be a single embodiment. Alternatively, steps 501 to 504 can be a single embodiment. Alternatively, steps 501 to 505 can be a single embodiment.

[0226] Optionally, the above Figure 6 The processing performed by a single execution entity (such as a terminal or access network device) in the illustrated embodiments can also be divided into multiple execution entities, which can be logically and / or physically separated. For example, the processing performed by the access network device can be divided into execution by at least one of CU, DU, and RU.

[0227] For example, step 501 above can be understood as: the CU of the access network device sends the second information to the DU of the access network device, and the DU of the access network device sends the second information to the core network device.

[0228] For example, step 503 above can be understood as: the core network device sends first information to the CU of the access network device. Step 504 above can be understood as: the CU of the access network device sends first information to the DU of the access network device, and the DU of the access network device transmits a carrier based on the first information. Alternatively, step 503 above can be understood as: the core network device sends first information to the CU of the access network device, and the CU of the access network device sends first information to the DU of the access network device. Step 504 above can be understood as: the DU of the access network device transmits a carrier based on the first information.

[0229] For example, step 505 above can be understood as: the core network device sends the sixth information to the CU of the access network device, the CU of the access network device sends the sixth information to the DU of the access network device, and the DU of the access network device stops transmitting carriers based on the sixth information.

[0230] It is understood that, in order to achieve the aforementioned functions, the device includes corresponding hardware structures and / or software modules for performing each function. Those skilled in the art should readily recognize that, based on the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0231] This application embodiment can divide the terminal, access network equipment, or core network equipment into functional modules according to the above method examples. For example, each function can be divided into its own functional modules, or two or more functions can be integrated into one processing module. The integrated module can be implemented in hardware or as a software functional module. It should be noted that the module division in this application embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods.

[0232] See Figure 3 to Figure 5 , Figure 6 This is a schematic diagram of a communication device provided in an embodiment of this application. The communication device 600 can be applied to the above-described... Figure 7 In any of the methods shown in the embodiments, such as Figure 7 As shown, the communication device 600 includes a processing module 601 and a transceiver module 602. The processing module 601 may be one or more processors, and the transceiver module 602 may be a transceiver or a communication interface. This communication device can be used to implement the terminal, access network device, or core network device involved in any of the above method embodiments, or to implement the functions of network elements involved in any of the above method embodiments. The network element or network function can be a network component in a hardware device, a software function running on dedicated hardware, or a virtualized function instantiated on a platform (e.g., a cloud platform). Optionally, the communication device 600 may further include a storage module 603 for storing the program code and data of the communication device 600.

[0233] In one example, when the communication device acts as a first device (the first device is an access network device or a chip in the access network device), it executes the steps performed by the first device in the above method embodiments. The transceiver module 602 is used to specifically execute the sending and / or receiving actions performed by the first device in any of the above method embodiments, for example, supporting the first device in performing other processes of the technology described herein. The processing module 601 can be used to support the communication device 600 in performing the processing actions in the above method embodiments, for example, supporting the first device in performing other processes of the technology described herein.

[0234] For example, the transceiver module 602 is used to transmit first information, the first information indicating the transmission of a carrier, the first information including at least one of the following: transmission power, transmission start time, transmission end time, transmission period, duration, or a first region, the first region including the region where the second device transmits the carrier and / or the service region.

[0235] Optionally, the transceiver module 602 is also used to acquire second information, which includes at least one of the following: the capability of the second device to transmit a carrier, the capability of the second device to transmit a single subcarrier, or the capability of the second device to transmit multiple subcarriers.

[0236] Optionally, when acquiring the second information, the transceiver module 602 is used to receive the second information from the second device, the third device, or the fourth device.

[0237] Optionally, before receiving the second information from the second device, the transceiver module 602 is also configured to send third information to the second device, the third information being used to obtain the second information.

[0238] Optionally, the transceiver module 602 is also configured to receive fourth information from a third device, the fourth information indicating the first area.

[0239] Optionally, the transceiver module 602 is also configured to receive fifth information from the fifth device, the fifth information including at least one of the following: service start indication, service start time, or service cycle information.

[0240] Optionally, the transceiver module 602 is also used to send a sixth message, which indicates that the carrier wave should be stopped.

[0241] In one example, the communication device acts as a third device (the third device is a core network device or a chip within a core network device) and executes the steps performed by the third device in the above method embodiments. The transceiver module 602 is used to specifically execute the sending and / or receiving actions performed by the third device in any of the above method embodiments, for example, supporting the third device in performing other processes of the technology described herein. The processing module 601 can be used to support the communication device 600 in performing the processing actions in the above method embodiments, for example, supporting the third device in performing other processes of the technology described herein.

[0242] For example, the transceiver module 602 is used to transmit first information, the first information indicating the transmission of a carrier, the first information including at least one of the following: transmission power, transmission start time, transmission end time, transmission period, duration, or a first region, the first region including the region where the second device transmits the carrier and / or the service region.

[0243] Optionally, the transceiver module 602 is further configured to receive second information from the second device, the second information including at least one of the following: the capability of the second device to transmit a carrier, the capability of the second device to transmit a single subcarrier, or the capability of the second device to transmit multiple subcarriers.

[0244] Optionally, the transceiver module 602 is also used to send a sixth message, which indicates that the carrier wave should be stopped.

[0245] In one example, the communication device acts as a fifth device (the fifth device being a terminal or a chip within a terminal) and executes the steps performed by the fifth device in the above method embodiments. The transceiver module 602 is used to specifically execute the sending and / or receiving actions performed by the fifth device in any of the above method embodiments, for example, supporting the fifth device in performing other processes of the technology described herein. The processing module 601 can be used to support the communication device 600 in performing the processing actions in the above method embodiments, for example, supporting the fifth device in performing other processes of the technology described herein.

[0246] For example, the transceiver module 602 is used to transmit first information, the first information indicating the transmission of a carrier, the first information including at least one of the following: transmission power, transmission start time, transmission end time, transmission period, duration, or a first region, the first region including the region where the second device transmits the carrier and / or the service region.

[0247] Optionally, the transceiver module 602 is also configured to receive fourth information from a third device, the fourth information indicating the first area.

[0248] In one example, when the communication device acts as a second device (the second device is a terminal, access network equipment, a chip in the terminal, or a chip in the access network equipment) and performs the steps performed by the second device in the above method embodiments, the transceiver module 602 is used to specifically perform the sending and / or receiving actions performed by the second device in any of the above method embodiments, for example, supporting the second device to perform other processes of the technology described herein. The processing module 601 can be used to support the communication device 600 in performing the processing actions in the above method embodiments, for example, supporting the second device to perform other processes of the technology described herein.

[0249] For example, the transceiver module 602 is used to receive first information, the first information indicating the transmission of a carrier, the first information including at least one of the following: transmission power, transmission start time, transmission end time, transmission period, duration, or a first region, the first region including the region where the second device transmits the carrier and / or the service region; the processing module 601 is used to transmit the carrier through the transceiver module 602 based on the first information.

[0250] Optionally, the transceiver module 602 is also used to transmit second information, the second information including at least one of the following: the capability of the second device to transmit a carrier, the capability of the second device to transmit a single subcarrier, or the capability of the second device to transmit multiple subcarriers.

[0251] Optionally, before sending the second information, the transceiver module 602 is also used to receive a third information, which is used to obtain the second information.

[0252] Optionally, the transceiver module 602 is also used to receive a sixth message, which indicates that the carrier wave should be stopped.

[0253] In one possible implementation, when the aforementioned device is a chip, the transceiver module 602 can be a communication interface, pins, or circuits. The communication interface can be used to input data to be processed to the processor and can output the processor's processing results. Specifically, the communication interface can be a general purpose input / output (GPIO) interface, which can connect to multiple peripheral devices (such as displays (LCDs), cameras, radio frequency (RF) modules, antennas, etc.). The communication interface is connected to the processor via a bus.

[0254] The processing module 601 can be a processing circuit, which can be one or more processors, or all or part of the circuitry in one or more processors used for control and / or processing. The processing circuit or processor can execute computer execution instructions stored in the storage module to cause the chip to execute the methods involved in any of the above method embodiments. Further, the processor can include a controller, an arithmetic logic unit (ALU), and registers. For example, the controller is mainly responsible for instruction decoding and issuing control signals for the operations corresponding to the instructions. The ALU is mainly responsible for performing fixed-point or floating-point arithmetic operations, shift operations, and logical operations, and can also perform address operations and conversions. The registers are mainly responsible for storing register operands and intermediate operation results temporarily stored during instruction execution. In specific implementations, the processor's hardware architecture can be an application-specific integrated circuit (ASIC) architecture, a microprocessor without interlocked piped stages architecture (MIPS) architecture, an advanced reduced instruction set machine (RISC) machine (ARM) architecture, or a network processor (NP) architecture, etc. The processor can be single-core or multi-core. The storage module can be an internal storage module of the chip, such as a register or cache. Alternatively, the storage module can be an external storage module, such as read-only memory (ROM) or other types of static storage devices that can store static information and instructions, or random access memory (RAM).

[0255] It should be noted that the functions of the processor and interface can be implemented through hardware design, software design, or a combination of both; no restrictions are imposed here.

[0256] ​This is a schematic diagram of another communication device provided in an embodiment of this application. It is understood that the communication device 710 includes necessary means such as modules, units, elements, circuits, or interfaces, appropriately configured together to execute this solution. The communication device 710 can be the aforementioned terminal, access network device, or core network device, or it can be a component (e.g., a chip) within these devices, used to implement the methods described in the above method embodiments. The communication device 710 includes one or more processors 711. The processor 711 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (e.g., a terminal, access network device, core network device, or chip), execute software programs, and process data from the software programs.

[0257] Optionally, in one design, the processor 711 may include a program 713 (sometimes also referred to as code or instructions), which can be executed on the processor 711 to cause the communication device 710 to perform the methods described in the above embodiments. In yet another possible design, the communication device 710 includes circuitry (…). ​ (Not shown), the circuit is used to implement the functions of the terminal, access network device, core network device, etc. in the above embodiments. Optionally, the communication device 710 may include one or more memories 712, on which a program 714 (sometimes also referred to as code or instructions) is stored. The program 714 can be run on the memory 712, causing the communication device 710 to perform the methods described in the above method embodiments.

[0258] Optionally, data may also be stored in the processor 711 and / or the memory 712. The processor and memory may be configured separately or integrated together.

[0259] Optionally, if the communication device 710 is a terminal or access network equipment, it may also include a transceiver 715 and / or an antenna 716. The processor 711, sometimes referred to as a processing unit, controls the communication device (e.g., a terminal, access network equipment, or core network equipment). The transceiver 715, sometimes referred to as a transceiver unit, transceiver, transceiver circuit, or simply a transceiver, is used to implement the transmission and reception functions of the communication device via the antenna 716.

[0260] Optionally, if the communication device 710 is a chip for a terminal or access network device, it may also include transceiver circuitry, such as an input / output interface, or a transceiver interface.

[0261] This application also provides a communication device, which includes at least one processor; wherein the at least one processor is configured to perform the method described in any of the above method embodiments.

[0262] This application also provides a computer-readable storage medium storing computer instructions that, when executed, cause the computer to perform any of the methods described in any of the above method embodiments.

[0263] This application also provides a computer program product, which includes computer program code. When the computer program code is run, it causes the computer to perform the method described in any of the above method embodiments.

[0264] This application also provides a chip, which includes at least one processor and an interface. The processor is used to read and execute instructions stored in a memory. When the instructions are executed, the chip causes the chip to perform the method described in any of the above method embodiments.

[0265] The various embodiments in this application are merely illustrative examples of executing all the steps included, and should not be considered as specific limitations on this application. For example, the order of steps in each embodiment can be simply changed according to their function and internal logic; or, for example, all steps in each embodiment can be executed, or only a portion of them can be executed, as long as the same function as in the embodiments of this application can be achieved.

[0266] In this application, "send" and "receive" indicate the direction of signal transmission. For example, "send information to the access network device" can be understood as the destination of the information being the access network device, which may include direct transmission via the air interface or indirect transmission via the air interface from other units or modules. "Receive information from the access network device" can be understood as the source of the information being the access network device, which may include direct reception from the access network device via the air interface or indirect reception from the access network device via the air interface from other units or modules. "Send" can also be understood as the "output" of the chip interface, and "receive" can also be understood as the "input" of the chip interface.

[0267] In other words, sending and receiving can occur between devices, such as between access network devices and terminals; or they can occur within a device, such as between components, modules, chips, software modules, or hardware modules within a device via a bus, wiring, or interface.

[0268] In the embodiments of this application, "when," "if," "if," and "in the case of" all refer to the device making corresponding processing under certain objective circumstances, and are not limited to a time, nor do they require the device to make a judgment action when it is implemented, nor do they mean that there are other limitations.

[0269] In this application, the words “example,” “exemplarily,” “for example,” or “such as” are used to indicate that something is an example, illustration, or description. Any embodiment or design described as “example,” “exemplarily,” “for example,” or “such as” in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the words “example,” “exemplarily,” “for example,” or “such as” is intended to present the relevant concepts in a specific manner.

[0270] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A communication method, the method being applied to a first apparatus, characterized in that, The method comprises: sending first information, the first information indicating a transmission carrier, the first information comprising at least one of: a transmission power, a transmission start time, a transmission end time, a transmission period, a duration, or a first region, the first region comprising a region of a transmission carrier of the second device and / or a service region; wherein the first device is an access network device or a chip in the access network device.

2. The method of claim 1, wherein, The method further comprises: obtaining second information, the second information comprising at least one of: a capability of the second device to transmit a carrier, a capability of the second device to transmit a single subcarrier, or a capability of the second device to transmit multiple subcarriers.

3. The method of claim 2, wherein, obtaining second information, comprising: receiving the second information from the second device, a third device, or a fourth device.

4. The method of claim 3, wherein, Before the receiving the second information from the second device, the method further comprises: sending third information to the second device, the third information being used to obtain the second information.

5. The method according to any one of claims 1 to 4, characterized in that, The method further comprises: receiving fourth information from a third device, the fourth information indicating the first region.

6. The method according to any one of claims 1 to 5, characterized in that, The method further comprises: receiving fifth information from a fifth device, the fifth information comprising at least one of: a service start indication, a service start time, or service period information.

7. The method according to any one of claims 1 to 6, characterized in that, The method further comprises: sending sixth information, the sixth information indicating to stop transmitting a carrier.

8. The method according to any one of claims 1 to 6, characterized in that, The second device is a terminal, a chip in a terminal, an access network device, or a chip in an access network device, the third device is a core network device or a chip in a core network device, the fourth device is an operation and maintenance management (OAM) device or a chip in an OAM device, the fifth device is a terminal or a chip in a terminal, and the fifth device is a reader / writer.

9. A communication method, the method being applied to a third device, characterized in that, The method further comprises: sending first information, the first information indicating a transmission carrier, the first information comprising at least one of: a transmission power, a transmission start time, a transmission end time, a transmission period, a duration, or a first region, the first region comprising a region of a transmission carrier of the second device and / or a service region; wherein the fifth device is a core network device or a chip in a core network device.

10. The method of claim 9, wherein, The method further comprises: receiving second information from the second device, the second information comprising at least one of: a capability of the second device to transmit a carrier, a capability of the second device to transmit a single subcarrier, or a capability of the second device to transmit multiple subcarriers.

11. The method according to claim 9 or 10, characterized in that, The method further comprises: sending sixth information, the sixth information indicating to stop transmitting a carrier.

12. The method according to any one of claims 9-11, characterized in that, The second device is a terminal, a chip in a terminal, an access network device, or a chip in an access network device.

13. A communication method, the method being applied to a second device, characterized in that, The method further comprises: receiving first information, the first information comprising at least one of: a transmission power, a transmission start time, a transmission end time, a transmission period, a duration, or a first region, the first region comprising a region of a transmission carrier of the second device and / or a service region; transmitting a carrier based on the first information; wherein the second device is a terminal, a chip in a terminal, an access network device, or a chip in an access network device.

14. The method of claim 13, wherein, The method further comprises: transmitting second information, the second information comprising at least one of: a capability of the second device to transmit a carrier, a capability of the second device to transmit a single subcarrier, or a capability of the second device to transmit multiple subcarriers.

15. The method of claim 14, wherein, The method further comprises, before the transmitting second information: receiving third information, the third information being used to obtain the second information.

16. The method according to any one of claims 13-15, characterized in that, The method further comprises: receiving sixth information, the sixth information indicating to stop transmitting a carrier.

17. A communications device, characterized by A computer program product including a computer readable medium bearing computer program code embodied therein for use with a computer processor, the computer program code comprising instructions for performing the method of any of claims 1-16.

18. A communications device, characterized by The communication device comprises at least one processor; wherein the at least one processor is configured to perform the method of any of claims 1-16.

19. A chip, characterized by The chip comprises at least one processor and an interface, the processor being configured to read and execute instructions stored in a memory, when the instructions are executed, causing the chip to perform the method of any of claims 1-16.

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