Information indication method, terminal, access network device, communication system and storage medium

Abstract

Embodiments of the present disclosure provide an information indication method, a terminal, an access network device, a communication system, and a storage medium. The method is executed by a terminal. The method comprises: sending first information to an access network device, wherein the first information is used for requesting a terminal to operate as a reader for passive Internet of Things (IoT) communication. The communication mechanism of the technical solution provided by the embodiments of the present disclosure can be adapted to IoT devices that support environmental power.

Description

Information indication method, terminal, access network equipment, communication system and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to an information indication method, a terminal, an access network device, a communication system, and a storage medium. Background Art

[0002] In the field of communication technology, an ambient-powered Internet of Things (IoT) device is an IoT device powered by energy harvesting. Its main feature is that it has no battery or has limited energy storage capacity (for example, using capacitors) and provides energy by harvesting radio waves, light, motion, heat or any other suitable power source.

[0003] Summary of the Invention

[0004] After the introduction of IoT devices that support ambient power, the communication mechanism needs to be adjusted.

[0005] Embodiments of the present disclosure provide an information indication method, a terminal, an access network device, a communication system, and a storage medium.

[0006] According to a first aspect of an embodiment of the present disclosure, there is provided an information indication method, the method being executed by a terminal, the method including:

[0007] Sending first information to the access network device;

[0008] The first information is used to request that the terminal operate as a reader for passive Internet of Things (IoT) communication.

[0009] According to a second aspect of an embodiment of the present disclosure, there is provided an information indication method, the method being performed by an access network device, the method comprising:

[0010] receiving first information sent by a terminal;

[0011] The first information is used to request that the terminal operate as a reader for passive Internet of Things (IoT) communication.

[0012] According to a third aspect of an embodiment of the present disclosure, there is provided an information indication method, the method comprising:

[0013] The terminal sends first information to the access network device;

[0014] The first information is used to request that the terminal operate as a reader for passive Internet of Things (IoT) communication.

[0015] According to a fourth aspect of an embodiment of the present disclosure, a terminal is provided, comprising:

[0016] a transceiver module, configured to send first information to the access network device;

[0017] The first information is used to request that the terminal operate as a reader for passive Internet of Things (IoT) communication.

[0018] According to a fifth aspect of an embodiment of the present disclosure, an access network device is provided, the access network device including:

[0019] a transceiver module, configured to receive first information sent by a terminal;

[0020] The first information is used to request that the terminal operate as a reader for passive Internet of Things (IoT) communication.

[0021] According to the sixth aspect of an embodiment of the present disclosure, a communication system is provided, which includes a terminal and an access network device, the terminal is configured to implement the information indication method provided by the first aspect, and the access network device is configured to implement the information indication method provided by the second aspect.

[0022] According to a seventh aspect of an embodiment of the present disclosure, a storage medium is provided, wherein the storage medium stores instructions, and when the instructions are executed on a communication device, the communication device executes the information indication method provided by the first aspect or the second aspect.

[0023] The communication mechanism of the technical solution provided by the embodiment of the present disclosure can be adapted to IoT devices that support ambient power.

[0024] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not restrictive of the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the embodiments of the present invention.

[0026] FIG1a is a schematic diagram showing an architecture of a communication system according to an exemplary embodiment;

[0027] FIG1b is a schematic diagram showing backscattering according to an exemplary embodiment;

[0028] FIG1c is a schematic diagram showing a network architecture according to an exemplary embodiment;

[0029] FIG1d is a schematic diagram showing a device type according to an exemplary embodiment;

[0030] FIG2a is a schematic flow chart showing an information indication method according to an exemplary embodiment;

[0031] FIG3a is a schematic flow chart showing an information indication method according to an exemplary embodiment;

[0032] FIG3 b is a schematic flow chart showing an information indication method according to an exemplary embodiment;

[0033] FIG4a is a schematic flow chart showing an information indication method according to an exemplary embodiment;

[0034] FIG4 b is a schematic flow chart showing an information indication method according to an exemplary embodiment;

[0035] FIG5a is a schematic flow chart showing an information indication method according to an exemplary embodiment;

[0036] FIG6a is a schematic structural diagram of a terminal according to an exemplary embodiment;

[0037] FIG6b is a schematic structural diagram of an access network device according to an exemplary embodiment;

[0038] FIG7a is a schematic structural diagram of a UE according to an exemplary embodiment;

[0039] Fig. 7b is a schematic structural diagram of a communication device according to an exemplary embodiment. DETAILED DESCRIPTION

[0040] Embodiments of the present disclosure provide an information indication method, a terminal, an access network device, a communication system, and a storage medium.

[0041] In a first aspect, an embodiment of the present disclosure provides an information indication method, which is executed by a terminal and includes:

[0042] Sending first information to the access network device;

[0043] The first information is used to request that the terminal operate as a reader for passive Internet of Things (IoT) communication.

[0044] In the above embodiment, the terminal can send first information to the access network device to request the terminal to operate as a reader for passive Internet of Things IoT communication, and autonomously request to become the reader, thereby autonomously triggering a mechanism to operate as a reader for passive Internet of Things IoT communication.

[0045] In conjunction with some embodiments of the first aspect, in some embodiments, sending the first information to the access network device includes:

[0046] During a radio resource control (RRC) connection establishment process or after the RRC connection is established, the first information is sent to the access network device.

[0047] In the above embodiment, the first information may be sent to the access network device during the RRC connection establishment process or after the RRC connection is established, and the timing of sending the information may be more flexible.

[0048] In conjunction with some embodiments of the first aspect, in some embodiments, sending the first information to the access network device includes:

[0049] Based on the triggering of the application layer or the non-access NAS layer of the terminal, the access layer AS of the terminal sends the first information to the access network device.

[0050] In the above embodiment, the application layer or the non-access NAS layer of the terminal can trigger the access layer AS of the terminal to send the first information to the access network device, and the triggering method will be more flexible.

[0051] In conjunction with some embodiments of the first aspect, in some embodiments, sending the first information to the access network device includes:

[0052] Sending message 3 MSG3 or message 5 MSG5 to the access network device;

[0053] Wherein, the MSG3 includes the first information, and the MSG5 includes the first information. In the above embodiment, the first information can be sent via MSG3.

[0054] In conjunction with some embodiments of the first aspect, in some embodiments, the first information includes at least one of the following:

[0055] Become a readerBeReader information;

[0056] Information about AmbientIOT, an IoT device for ambient power;

[0057] Mobile originating signaling mo-Signalling information;

[0058] Information about the mobile origin data mo-data.

[0059] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0060] The first information is obtained from the AS layer or the NAS layer of the terminal.

[0061] In the above embodiment, the first information may be obtained from the AS layer or the NAS layer. In this way, the method for obtaining the first information is more flexible.

[0062] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0063] Determining the access type and / or access identity corresponding to the RRC connection establishment process;

[0064] The access type indicates that the terminal enters an RRC connection state as the reader; and the access identity indicates that the terminal operates as the reader.

[0065] In the above embodiment, the terminal may be instructed to enter the RRC connected state as the reader by using the determined access type; and the terminal may be instructed to operate as the reader by using the determined access identity.

[0066] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0067] Receive second information sent by an access network device, where the second information includes parameters configured for the access type, where the parameters are configuration parameters for the terminal to execute unified access control UAC.

[0068] In the above embodiment, since parameters including the configuration for the access type can be received, UAC can be performed based on the configured parameters, which has better adaptability.

[0069] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0070] Based on the access type and / or the access identity, UAC is performed.

[0071] In the above embodiment, the UAC may be executed based on the access type and / or the access identity, which may provide better adaptability.

[0072] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0073] receiving third information sent by the access network device;

[0074] The third information is used to indicate: accepting or rejecting the terminal from operating as a reader for passive IoT communication.

[0075] In the above embodiment, after receiving the third information, the device may operate as the reader or not according to the instruction of the third information, and the operation mechanism will be clearer.

[0076] In combination with some embodiments of the first aspect, in some embodiments, the third information is used to indicate that the terminal is accepted to operate as a reader for passive IoT communication, and the third information includes at least one of the following: task identification, task information, cell information, signal radio bearer SRB for data reporting, and data radio bearer DRB for data reporting.

[0077] In the above embodiment, it is possible to operate as a reader based on the configuration information included in the third information.

[0078] In combination with some embodiments of the first aspect, in the above embodiment, the method further includes:

[0079] Determine to switch to the RRC connected state, and send fourth information to the access network device or the core network device;

[0080] The fourth information is used to indicate: whether the terminal supports the function of operating as the reader, and / or whether the terminal expects or does not expect to operate as the reader.

[0081] In the above embodiment, after the access network device receives the fifth information, it can clearly determine based on the indication of the fourth information whether the terminal supports the function of running as the reader, and / or whether the terminal expects or does not expect to run as the reader.

[0082] In conjunction with some embodiments of the first aspect, in some embodiments, sending the fourth information to the access network device or the core network device includes at least one of the following:

[0083] The fourth information is sent to the access network device through the AS layer.

[0084] The fourth information is sent to the core network device through the NAS layer.

[0085] In the above embodiment, the fourth information may be sent to both the access network device and the core network device.

[0086] In conjunction with some embodiments of the first aspect, in some embodiments, sending the fourth information to the access network device or the core network device includes:

[0087] Before AS layer security activation, sending the fourth information to the access network device or the core network device;

[0088] After AS layer security is activated, the fourth information is sent to the access network device or the core network device.

[0089] In the above embodiment, the fourth information may be sent to the access network device or the core network device before or after the AS layer security activation, and the sending timing is more flexible.

[0090] In combination with some embodiments of the first aspect, in some embodiments, the fourth information indicates: the RRC state of the terminal when operating as the reader and / or the operating spectrum of the terminal when operating as the reader.

[0091] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes at least one of the following:

[0092] Sending fifth information to the access network device, where the fifth information is used to indicate: requesting to exit the state where the terminal operates as the reader and / or releasing resource configuration information for the terminal to operate as the reader;

[0093] Determining that a timer has timed out, exiting a state where the terminal operates as a reader and / or releasing resource configuration information for the terminal to operate as a reader;

[0094] Receive sixth information sent by the access network device, where the sixth information is used to instruct: triggering the terminal to exit a state in which the terminal operates as the reader and / or releasing resource configuration information for the terminal to operate as the reader.

[0095] In the above embodiment, the terminal may be triggered to exit the state of operating as the reader and / or release resource configuration information for operating as the reader in different ways, and the triggering method may be more flexible.

[0096] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes one of the following:

[0097] transmitting service data via an independent data channel established for the terminal;

[0098] The service data is transmitted through the shared data channel established for the reader service.

[0099] In the above embodiment, the service data can be transmitted through an independent data channel or a shared data channel, and the transmission method will be more flexible.

[0100] In the above embodiment, in a second aspect, the embodiment of the present disclosure provides an information indication method, which is performed by an access network device, and includes:

[0101] receiving first information sent by a terminal;

[0102] The first information is used to request that the terminal operate as a reader for passive Internet of Things (IoT) communication.

[0103] In conjunction with some embodiments of the second aspect, in some embodiments, sending the first information to the access network device includes:

[0104] During a radio resource control (RRC) connection establishment process or after the RRC connection is established, the first information sent by the terminal is received.

[0105] In conjunction with some embodiments of the second aspect, in some embodiments, the receiving the first information sent by the terminal includes:

[0106] Receive the first information sent by the access layer AS of the terminal.

[0107] With reference to some embodiments of the second aspect, in some embodiments, the receiving the first information sent by the terminal includes:

[0108] Receive message 3 MSG3 sent by the terminal;

[0109] The MSG3 includes the first information, and the first information includes at least one of the following:

[0110] Become a readerBeReader information;

[0111] Information about AmbientIOT, an IoT device for ambient power;

[0112] Mobile originating signaling mo-Signalling information;

[0113] Mobile terminal data mo-Signalling information.

[0114] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0115] sending second information to the terminal;

[0116] The second information includes parameters configured for the access type, and the parameters are configuration parameters used by the terminal to perform unified access control UAC.

[0117] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0118] sending third information to the terminal;

[0119] The third information is used to indicate: accepting or rejecting the terminal from operating as a reader for passive IoT communication.

[0120] In combination with some embodiments of the second aspect, in some embodiments, the third information is used to indicate that the terminal is accepted to operate as a reader for passive IoT communication, and the third information includes at least one of the following: task identification, task information, cell information, signal radio bearer SRB for data reporting, and data radio bearer DRB for data reporting.

[0121] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0122] Receiving fourth information sent by the terminal or core network device;

[0123] The fourth information is used to indicate: whether the terminal supports the function of operating as the reader, and / or whether the terminal expects or does not expect to operate as the reader.

[0124] In conjunction with some embodiments of the second aspect, in some embodiments, the receiving the fourth information sent by the terminal or the core network device includes at least one of the following:

[0125] The fourth information sent by the terminal is received through the AS layer.

[0126] The fourth information sent by the core network device is received through the NAS layer.

[0127] In conjunction with some embodiments of the second aspect, in some embodiments, the receiving the fourth information sent by the terminal or the core network device includes:

[0128] Before AS layer security activation, receiving fourth information sent by the terminal or core network device;

[0129] After the AS layer security is activated, the fourth information sent by the terminal or the core network device is received.

[0130] In combination with some embodiments of the second aspect, in some embodiments, the fourth information indicates: the RRC state of the terminal when operating as the reader and / or the operating spectrum of the terminal when operating as the reader.

[0131] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes at least one of the following:

[0132] receiving fifth information sent by the terminal, where the fifth information is used to indicate: requesting to exit a state where the terminal operates as the reader and / or releasing resource configuration information for the terminal to operate as the reader;

[0133] Sending sixth information to the terminal, where the sixth information is used to instruct: triggering the terminal to exit a state where the terminal operates as the reader and / or releasing resource configuration information for the terminal to operate as the reader.

[0134] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes one of the following:

[0135] transmitting service data via an independent data channel established for the terminal;

[0136] The service data is transmitted through the shared data channel established for the reader service.

[0137] In a third aspect, an embodiment of the present disclosure provides an information indication method, the method comprising:

[0138] The terminal sends first information to the access network device;

[0139] The first information is used to request that the terminal operate as a reader for passive Internet of Things (IoT) communication.

[0140] In a fourth aspect, an embodiment of the present disclosure provides a terminal, comprising:

[0141] a transceiver module, configured to send first information to the access network device;

[0142] The first information is used to request that the terminal operate as a reader for passive Internet of Things (IoT) communication.

[0143] In a fifth aspect, an embodiment of the present disclosure provides an access network device, the access network device comprising:

[0144] a transceiver module, configured to receive first information sent by a terminal;

[0145] The first information is used to request that the terminal operate as a reader for passive Internet of Things (IoT) communication.

[0146] In the sixth aspect, an embodiment of the present disclosure provides an information indication system, wherein the communication system includes a terminal and an access network device, the terminal is configured to implement the information indication method described in the optional implementation method of the first aspect, and the access network device is configured to implement the information indication method described in the optional implementation method of the second aspect.

[0147] In a seventh aspect, an embodiment of the present disclosure provides a terminal, the terminal including:

[0148] one or more processors;

[0149] Among them, the terminal is used to execute the information indication method provided by the first aspect.

[0150] In an eighth aspect, an embodiment of the present disclosure provides an access network device, the access network device including:

[0151] one or more processors;

[0152] Among them, the access network device is used to execute the information indication method provided by the second aspect.

[0153] In a ninth aspect, an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, which, when executed on a communication device, enable the communication device to execute the information indication method described in the optional implementation of the first and second aspects.

[0154] In a tenth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the optional implementation of the first and second aspects.

[0155] In an eleventh aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first and second aspects.

[0156] In a twelfth aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first and second aspects above.

[0157] It is understandable that the above-mentioned terminals, access network devices, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to perform the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0158] The embodiments of the present disclosure provide an information indication method, a terminal, an access network device, a communication system, and a storage medium. In some embodiments, the terms information indication method, information processing method, information transmission method, etc. are interchangeable, and the terms communication system, information processing system, etc. are interchangeable.

[0159] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0160] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0161] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0162] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0163] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0164] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0165] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0166] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0167] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0168] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0169] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0170] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0171] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0172] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0173] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)", "base station (BS)", "radio base station", "fixed station", and in some embodiments may also be understood as "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission and / or reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)", etc.

[0174] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)", "user terminal" "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc.

[0175] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0176] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0177] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0178] FIG1a is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0179] As shown in FIG. 1 a , a communication system 100 includes a terminal 101 , an access network device 102 , and a core network device 103 .

[0180] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0181] In some embodiments, the access network device may be, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0182] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0183] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0184] In some embodiments, a core network device may be a device including one or more network elements, or may be multiple devices or device groups, each including all or part of the one or more network elements. The network element may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0185] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.

[0186] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1a, or a portion thereof, but are not limited thereto. The entities shown in FIG1a are illustrative only. The communication system may include all or a portion of the entities shown in FIG1a, or may include other entities other than those shown in FIG1a. The number and form of the entities may be arbitrary. The connection relationship between the entities is illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0187] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0188] In some cases, IoT devices in IoT networks are often powered by traditional batteries with limited lifespans, negatively impacting user experience. The astronomical growth of IoT networks, coupled with the proliferation of IoT devices, has pushed maintenance expenses, including labor and battery costs, to a whole new level. Billions of traditional batteries are discarded each year, with only a small fraction effectively recycled, negatively impacting the Earth's ecosystem. Maintaining IoT network operations and replacing batteries can be extremely challenging in extreme environmental conditions. Battery-free IoT communications have been proposed to improve network performance and sustainability, expanding their application scenarios. Furthermore, battery-free communications are more environmentally friendly and safer for children and the elderly. Eliminating traditional batteries significantly reduces device size and cost, paving the way for a variety of new applications.

[0189] In some embodiments, in the era of the fifth generation mobile communication technology 5G, various low power wide area (LPWA) technologies have been developed, such as machine type communication (MTC), narrowband Internet of Things (NB-IoT), reduced capability (RedCap), etc., to meet the growing needs of vertical fields. These LPWA technologies achieve low cost, low power consumption and large-scale connectivity, which can meet the requirements of many applications. However, there are still many use cases and applications that cannot be solved in the following situations. First, devices driven by traditional batteries are not applicable, such as in extreme environmental conditions (such as high voltage, extremely high / low temperature, humid environment). Second, maintenance-free equipment is required (for example, there is no need to replace traditional batteries of the device). Finally, ultra-low complexity, very small device size / form factor (such as mm thickness), longer life cycle, etc. are required.

[0190] In some embodiments, ambient powered IoT is a promising technology that can address the unmet needs described above. An ambient powered IoT device is an IoT device that is powered by energy harvesting, either without a battery or with limited energy storage capabilities (e.g., using capacitors), by harvesting radio waves, light, motion, heat, or any other suitable power source.

[0191] In some embodiments, energy harvested from the environment can drive data transmission and wireless communications among sensor nodes. Current mainstream low-power IoT communication chips consume tens or even hundreds of milliwatts of power for both transmission and reception, while ambient energy harvesting only captures microwatts, making them inadequate for powering these nodes. Therefore, new wireless communication technologies are needed to reduce communication energy consumption to tens or even below ten microwatts. Backscatter communications, currently a mainstream approach, is a key technology for building a green, energy-efficient, and flexibly deployable future IoT, and a crucial means of achieving the "Intelligent Connection of Everything."

[0192] In some embodiments, please refer to Figure 1b. Backscatter communication is a modulation and transmission technology designed with extremely low power consumption, which utilizes the principle of backscattering of radio frequency signals. Backscatter communication was first proposed by Stockman. When the radio frequency signal reaches the surface of an object, a part of it will be reflected. The sending node adjusts the matching between the receiving antenna and the impedance according to the information to be sent, thereby enhancing the reflection of the incident radio frequency signal and modulating the perception data acquired by itself onto the reflected signal to complete the transmission of the data. This process is similar to that of a reflector. Compared with other communication technologies, backscatter communication does not require a complex radio frequency structure, reduces the use of devices such as power amplifiers, high-precision crystal oscillators, duplexers, and high-precision filters, and does not require complex baseband processing. Therefore, it can simplify terminal design and significantly reduce the cost of terminal nodes.

[0193] In some embodiments, backscatter communication has been widely used in Radio Frequency Identification (RFID) systems, resulting in numerous large-scale commercial applications. Its operating principle is that a receiver (typically an RFID reader) transmits a radio frequency excitation signal, activating a passive node (typically an RFID tag). The tag then uses backscatter communication to modulate its information onto the radio frequency signal. The reader then receives the reflected signal from the passive tag and demodulates it, achieving information transmission.

[0194] In some embodiments, RFID technology also has numerous drawbacks, such as limited coverage (the wireless signal experiences double-path fading during the round-trip communication process, resulting in high path loss and a short effective communication range), single-channel transmission, the need for strict tag alignment, and a lack of power control. RFID technology still has significant room for improvement in communication. Integration with 3GPP communication technologies is needed to improve the wireless communication performance of RFID technology in the passive IoT.

[0195] The expected new type of IoT devices have the characteristics of low memory, low processing power, low power consumption, small data transmission, and massive deployment. Environmental IoT devices can be maintenance-free and have a long service life (for example, more than 10 years).

[0196] These new IoT devices require energy from radio waves transmitted by network nodes to power themselves. Therefore, until they receive energy, they are typically powered off, meaning they are disconnected from the network. To address this, the communication system must support data communication methods with shorter transmission times, lower memory consumption, and more convenient terminal management to expedite data communication.

[0197] In some embodiments, see FIG1c, which shows a network architecture for wireless communication based on backscatter technology to achieve communication between ambient energy devices.

[0198] Architecture 1: Direct downlink (DL) and uplink (UL) data reception and transmission between ambient power IoT devices and base stations.

[0199] Architecture 2: DL and UL data reception and transmission are performed indirectly between the ambient IoT and the base station; intermediate nodes exist in the middle to forward data. For example, the intermediate nodes can be relays, integrated access backhaul (IAB), UEs, and repeaters.

[0200] Architecture 3: Ambient IoT and the base station directly transmit or receive data in the DL or UL. Auxiliary nodes are located on the UL or DL, responsible for receiving or sending UL or DL ​​data. Examples of auxiliary nodes include relays, IABs, UEs, and repeaters.

[0201] Architecture 4: Direct DL and UL data reception and transmission between ambient IoT and UE; UE is responsible for collecting data and forwarding it to the network.

[0202] In some embodiments, referring to FIG1d , Ambient IoT devices can be divided into three types:

[0203] Device A: No energy storage, no independent signal generation / amplification, i.e. backscatter transmission;

[0204] Device B: has energy storage but no independent signal generation, i.e., backscatter transmission. The use of stored energy may include amplification of the reflected signal.

[0205] Device C: has energy storage and independent signal generation, i.e., active RF components for transmission.

[0206] FIG2a is an interactive diagram of an information indication method according to an embodiment of the present disclosure. As shown in FIG2a, the embodiment of the present disclosure relates to an information indication method, which is used in a communication system 100 and includes:

[0207] Step S2101: The terminal sends first information to the access network device.

[0208] In some embodiments, the access network device receives first information sent by the terminal.

[0209] In some embodiments, the first information is used to request that the terminal operate as a reader for passive Internet of Things (IoT) communication.

[0210] In some embodiments, the reader may be a radio frequency identification (RFID) reader. It should be noted that a reader may also be referred to as a receiver. In the embodiments of the present disclosure, "reader" and "receiver" are interchangeable and are not limited herein.

[0211] In some embodiments, the terminal sends the first information to the access network device during a radio resource control (RRC) connection establishment process.

[0212] In some embodiments, after a radio resource control (RRC) connection is established, the terminal sends the first information to the access network device.

[0213] In some embodiments, based on the application layer triggering of the terminal, the access stratum (AS) layer of the terminal sends the first information to the access network device.

[0214] In some embodiments, trigger information sent by the application layer of the terminal is received, and the access AS layer of the terminal sends the first information to the access network device.

[0215] In some embodiments, based on the triggering of the non-access stratum (NAS) layer of the terminal, the access AS layer of the terminal sends the first information to the access network device.

[0216] Exemplarily, the NAS layer of the terminal may send trigger information to the AS layer, and the trigger information may include service information associated with the first information or timing information for executing the first information sending, but is not limited thereto.

[0217] In some embodiments, the trigger information sent by the NAS layer of the terminal is received, and the access AS layer of the terminal sends the first information to the access network device.

[0218] In some embodiments, the terminal sends message 3 MSG3 to the access network device.

[0219] In some embodiments, the MSG3 includes the first information.

[0220] In some embodiments, the terminal sends message 5 MSG5 to the access network device.

[0221] In some embodiments, the MSG5 includes the first information.

[0222] In some embodiments, the first information includes at least one of the following:

[0223] Become a readerBeReader information;

[0224] Information about AmbientIOT, an IoT device for ambient power;

[0225] Mobile originating signaling mo-Signalling information;

[0226] Information about the mobile origin data mo-data.

[0227] In some embodiments, MSG3 may be a radio resource control setup request RRCSetupRequest message.

[0228] In some embodiments, MSG3 may be a radio resource control resumption request RRCResumeRequest message.

[0229] In some embodiments, the first information includes cause value information, and the cause value information indicates at least one of BeReader, AmbientIOT, mo-Signalling, and mo-data.

[0230] In some embodiments, the terminal may obtain the first information or the cause value information from the AS layer of the terminal.

[0231] In some embodiments, the terminal may obtain the first information or the cause value information from a NAS layer of the terminal.

[0232] In some embodiments, the terminal determines the access type and / or access identity corresponding to the RRC connection establishment process.

[0233] In some embodiments, the access type indicates that the terminal enters an RRC connected state as the reader.

[0234] In some embodiments, the access identity indicates that the terminal operates as the reader.

[0235] It should be noted that if MSG3 includes the first information, and the first information includes a cause value, a new access type (access category) and / or access identity (Access identity) may be set for the RRC access (or RRC connection establishment process) corresponding to the cause value.

[0236] In some embodiments, the terminal sends a message 3 MSG3 to the access network device; wherein the MSG3 includes the mo-Signalling information and / or the mo-data information. The terminal sends a message 5 MSG5 to the access network device; wherein the MSG5 includes the first information.

[0237] Step S2102: The access network device sends second information to the terminal.

[0238] In some embodiments, the terminal receives second information sent by the access network device.

[0239] In some embodiments, the access network device sends the second information to the terminal via a broadcast message.

[0240] In some embodiments, the terminal receives second information configured by the access network device for the access type.

[0241] In some embodiments, the second information is used to indicate configuration parameters for performing Unified Access Control (UAC).

[0242] In some embodiments, the second information includes parameters configured for the access type, wherein the parameters are configuration parameters for the terminal to perform unified access control (UAC). In some embodiments, the configuration parameters include at least one of the following:

[0243] UAC blocking factor (uac-BarringFactor);

[0244] UAC blocking time (uac-BarringTime);

[0245] UAC blocking access identification (uac-BarringForAccessIdentity).

[0246] In some implementations, the terminal performs UAC based on the access type and / or the access identity.

[0247] Step S2103: The terminal or core network device sends fourth information to the access network device.

[0248] In some embodiments, the access network device receives fourth information sent by the terminal or the core network device.

[0249] In some embodiments, it is determined to switch to the RRC connection state, and the terminal sends fourth information to the access network device or the core network device.

[0250] In some embodiments, the fourth information is used to indicate that the terminal supports the function of operating as the reader.

[0251] In some embodiments, the fourth information (which may be user consent information) is used to indicate whether the terminal desires or does not desire to operate as the reader.

[0252] In some embodiments, the fourth information is used to indicate: the terminal supports the function of operating as the reader and the terminal desires or does not desire to operate as the reader.

[0253] In some embodiments, the terminal sends the fourth information to the access network device through the AS layer.

[0254] In some embodiments, the terminal sends the fourth information to the core network device through the NAS layer.

[0255] In some embodiments, after the terminal sends the fourth information to the core network device through the NAS layer, the access network device may obtain the fourth information from the core network device. For example, the access network device obtains the fourth information from the core network device during the initial context establishment process.

[0256] In some embodiments, the user subscription data includes the fourth information, and the access network device may obtain the fourth information from the core network device. For example, the access network device obtains the fourth information from the core network device during the initial context establishment process.

[0257] In some embodiments, before AS layer security is activated, the terminal sends the fourth information to the access network device or the core network device, for example, via MSG5.

[0258] In some embodiments, after the AS layer is securely activated, the terminal sends the fourth information to the access network device or the core network device, for example, via a UEAssistanceinformation message.

[0259] In some embodiments, the fourth information indicates: an RRC state of the terminal when operating as the reader and / or an operating spectrum of the terminal when operating as the reader.

[0260] Exemplarily, the terminal may also report auxiliary parameters, for example, indicating that the terminal expects to perform the function of a reader in a predetermined RRC state, or indicating the spectrum expected to be used as a reader, for example, indicating that the spectrum resources correspond to downlink, uplink, Gaurdband (deployed in the guard band) or standalone (deployed outside the bandwidth), and may further indicate a determined bandwidth or frequency range.

[0261] Step S2104: The access network device sends third information to the terminal.

[0262] In some embodiments, the terminal receives third information sent by the access network device.

[0263] In some embodiments, the third information is used to indicate that the terminal is accepted to operate as a reader for passive IoT communication.

[0264] In some embodiments, the third information is used to indicate that the terminal is denied from operating as a reader for passive IoT communication.

[0265] It should be noted that if the access network device accepts the terminal to operate as a reader for passive IoT communication, the terminal can operate as a reader.

[0266] In some embodiments, after the terminal operates as a reader, business data can be transmitted through an independent data channel established for the terminal.

[0267] In some embodiments, after the terminal operates as a reader, service data may be transmitted through a shared data channel established for the reader service.

[0268] Exemplarily, the access network device may establish a terminal-based Packet Data Unit (PDU) session for the terminal, and the terminal forwards routing data through a GPRS Tunnelling Protocol (GTP) tunnel or an Internet Protocol channel.

[0269] For example, the network side may also establish a shared PDU session or task for the task. After the terminal reports the data to the base station, the base station forwards the routing data through a shared GTP tunnel or a shared signaling connection based on the information associated with the reported data, for example, based on the Next Generation Access Protocol (NGAP).

[0270] In some embodiments, the third information is used to indicate that the terminal is accepted to operate as a reader for passive IoT communication, and the third information includes configuration information for configuring the reader.

[0271] In some embodiments, the configuration information includes at least one of the following: a task identifier, task information, cell information, a signaling radio bearer (SRB) for data reporting, and a data radio bearer (DRB) for data reporting.

[0272] In some embodiments, the task information may include an Internet Protocol address of a data forwarding route and / or data information of a task request.

[0273] In some embodiments, the cell information may include cell identification, name, area name, and frequency.

[0274] Step S2105: The terminal sends the fifth information to the access network device.

[0275] In some embodiments, the access network device receives fifth information sent by the terminal.

[0276] In some embodiments, the terminal sends fifth information to the access network device, where the fifth information is used to indicate a request to exit the state where the terminal operates as the reader and / or to release resource configuration information for the terminal to operate as the reader.

[0277] In some embodiments, the terminal determines that the timer has timed out, exits the state where the terminal operates as a reader, and / or releases resource configuration information for the terminal to operate as a reader.

[0278] In some embodiments, the timer may be configured by the access network device through configuration information. For example, the access network device sends configuration information to the terminal, and the configuration information may indicate the timer.

[0279] Step S2106: The access network device sends sixth information to the terminal.

[0280] In some embodiments, the terminal receives sixth information sent by the access network device.

[0281] In some embodiments, the terminal receives sixth information sent by the access network device, and the sixth information is used to indicate: triggering the terminal to exit the state of the terminal running as the reader and / or releasing resource configuration information of the terminal running as the reader.

[0282] In some embodiments, the access network device may send downlink control information (DCI), media access control (MAC) control element (CE), or RRC signaling, wherein the DCI, MAC CE, or RRC signaling includes the sixth information.

[0283] Exemplarily, the terminal acts as a reader to provide an excitation signal to the device. When the data transmission of the device is completed, the terminal providing the excitation signal can be deactivated for energy saving or the terminal can be deactivated for the purpose of recovering the resources allocated to the terminal. At this time, the sixth information is sent.

[0284] In some embodiments, the term "information" can be interchangeable with terms such as "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "field", and "data".

[0285] In some embodiments, the term "send" can be interchanged with terms such as "transmit", "report", and "transmit".

[0286] The information indication method involved in the embodiments of the present disclosure may include at least one of steps S2101 to S2106. For example, step S2101 may be implemented as an independent embodiment, step S2102 may be implemented as an independent embodiment, step S2103 may be implemented as an independent embodiment, step S2104 may be implemented as an independent embodiment, step S2105 may be implemented as an independent embodiment, and step S2106 may be implemented as an independent embodiment. For example, step S2101 combined with step S2104 can be implemented as an independent embodiment, step S2101 combined with step S2104 and step S2105 can be implemented as an independent embodiment, step S2101 combined with step S2104 and step S2106 can be implemented as an independent embodiment, step S2101 combined with step S2104, step S2105 and step S2106 can be implemented as an independent embodiment, step S2101 combined with step S2102 and step S2104 can be implemented as an independent embodiment, and step S2101 combined with step S2103 and step S2104 can be implemented as an independent embodiment, but the present invention is not limited thereto. It should be noted that each step can be implemented independently, or, if there is no contradiction, the order can be arbitrarily changed and they can be freely combined for implementation.

[0287] FIG3a is a flow chart of an information indication method according to an embodiment of the present disclosure. As shown in FIG3a, the present disclosure embodiment relates to an information indication method, which is executed by terminal 101 and includes:

[0288] Step S3101: Send the first information.

[0289] In some embodiments, the optional implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0290] Step S3102: Obtain second information;

[0291] The optional implementation of step S3102 can refer to the optional implementation of step S2102 in Figure 2a and other related parts in the embodiment involved in Figure 2a, which will not be repeated here.

[0292] In some embodiments, the terminal receives the second information sent by the access network device, but is not limited thereto, and may also receive the second information sent by other entities.

[0293] In some embodiments, the terminal obtains second information specified by the protocol.

[0294] In some embodiments, the terminal obtains the second information from an upper layer(s).

[0295] In some embodiments, the terminal performs processing to obtain the second information.

[0296] In some embodiments, step S3102 is omitted, and the terminal autonomously implements the function indicated by the second information, or the above function is default or by default.

[0297] Step S3103: Send the fourth information.

[0298] In some embodiments, the optional implementation of step S3103 can refer to the optional implementation of step S2103 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0299] Step S3104: Obtain third information;

[0300] The optional implementation of step S3104 can refer to the optional implementation of step S2104 in Figure 2a and other related parts in the embodiment involved in Figure 2a, which will not be repeated here.

[0301] In some embodiments, the terminal receives the third information sent by the access network device, but is not limited thereto, and may also receive the third information sent by other entities.

[0302] In some embodiments, the terminal obtains third information specified by the protocol.

[0303] In some embodiments, the terminal obtains the third information from upper layer(s).

[0304] In some embodiments, the terminal performs processing to obtain the third information.

[0305] In some embodiments, step S3105 is omitted, and the terminal autonomously implements the function indicated by the third information, or the above function is default or acquiescent.

[0306] Step S3105: Send the fifth message.

[0307] In some embodiments, the optional implementation of step S3105 can refer to the optional implementation of step S2105 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0308] Step S3106: Send the sixth information.

[0309] The optional implementation of step S3106 can refer to the optional implementation of step S2106 in Figure 2a and other related parts in the embodiment involved in Figure 2a, which will not be repeated here.

[0310] In some embodiments, the terminal receives the sixth information sent by the access network device, but is not limited thereto, and may also receive the sixth information sent by other entities.

[0311] In some embodiments, the terminal obtains sixth information specified by the protocol.

[0312] In some embodiments, the terminal obtains the sixth information from an upper layer(s).

[0313] In some embodiments, the terminal performs processing to obtain the third information.

[0314] In some embodiments, step S3106 is omitted, and the terminal autonomously implements the function indicated by the sixth information, or the above function is default or by default.

[0315] The information indication method involved in the embodiments of the present disclosure may include at least one of steps S3101 to S3106. For example, step S3101 may be implemented as an independent embodiment, step S3102 may be implemented as an independent embodiment, step S3103 may be implemented as an independent embodiment, step S3104 may be implemented as an independent embodiment, step S3105 may be implemented as an independent embodiment, and step S3106 may be implemented as an independent embodiment. For example, step S3101 combined with step S3104 can be implemented as an independent embodiment, step S3101 combined with step S3104 and step S3105 can be implemented as an independent embodiment, step S3101 combined with step S3104 and step S3106 can be implemented as an independent embodiment, step S3101 combined with step S3104, step S3105 and step S3106 can be implemented as an independent embodiment, step S3101 combined with step S3102 and step S3104 can be implemented as an independent embodiment, and step S3101 combined with step S3103 and step S3104 can be implemented as an independent embodiment, but the present invention is not limited thereto. It should be noted that each step can be implemented independently, or, if there is no contradiction, the order can be arbitrarily changed and they can be freely combined for implementation.

[0316] FIG3b is a flow chart of an information indication method according to an embodiment of the present disclosure. As shown in FIG3b , the present disclosure embodiment relates to an information indication method, which is executed by terminal 101 and includes:

[0317] Step S3201: Send the first information.

[0318] In some embodiments, the first information is used to request that the terminal operate as a reader for passive Internet of Things (IoT) communication.

[0319] In some embodiments, the optional implementation of step S3201 can refer to the optional implementation of step S2101 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0320] In some embodiments, sending the first information to the access network device includes:

[0321] During a radio resource control (RRC) connection establishment process or after the RRC connection is established, the first information is sent to the access network device.

[0322] In some embodiments, sending the first information to the access network device includes:

[0323] Based on the triggering of the application layer or the non-access NAS layer of the terminal, the access AS layer of the terminal sends the first information to the access network device.

[0324] In some embodiments, the sending the first information to the access network device includes:

[0325] Sending message 3 MSG3 or message 5 MSG5 to the access network device;

[0326] Wherein, the MSG3 includes the first information, and the MSG5 includes the first information. In some embodiments, the first information includes at least one of the following:

[0327] Become a readerBeReader information;

[0328] Information about AmbientIOT, an IoT device for ambient power;

[0329] Mobile originating signaling mo-Signalling information;

[0330] Information about the mobile origin data mo-data.

[0331] In some embodiments, the method further comprises:

[0332] The first information is obtained from the AS layer or the NAS layer of the terminal.

[0333] In some embodiments, the method further comprises:

[0334] Determining the access type and / or access identity corresponding to the RRC connection establishment process;

[0335] The access type indicates that the terminal enters an RRC connection state as the reader; and the access identity indicates that the terminal operates as the reader.

[0336] In some embodiments, the method further comprises:

[0337] Receive second information sent by an access network device, wherein the second information includes parameters configured for the access type, and the parameters are configuration parameters used by the terminal to perform unified access control UAC.

[0338] In some embodiments, the method further comprises:

[0339] Based on the access type and / or the access identity, UAC is performed.

[0340] In some embodiments, the method further comprises:

[0341] receiving third information sent by the access network device;

[0342] The third information is used to indicate: accepting or rejecting the terminal from operating as a reader for passive IoT communication.

[0343] In some embodiments, the third information is used to indicate that the terminal is accepted to operate as a reader for passive IoT communication, and the third information includes at least one of the following: task identification, task information, cell information, signal radio bearer SRB for data reporting, and data radio bearer DRB for data reporting.

[0344] In some embodiments, the method further comprises:

[0345] Determine to switch to the RRC connected state, and send fourth information to the access network device or the core network device;

[0346] The fourth information is used to indicate: whether the terminal supports the function of operating as the reader, and / or whether the terminal expects or does not expect to operate as the reader.

[0347] In some embodiments, the sending of the fourth information to the access network device or the core network device includes at least one of the following:

[0348] Sending the fourth information to the access network device through the AS layer;

[0349] The fourth information is sent to the core network device through the NAS layer.

[0350] In some embodiments, the sending the fourth information to the access network device or the core network device includes:

[0351] Before AS layer security activation, sending the fourth information to the access network device or the core network device;

[0352] After AS layer security is activated, the fourth information is sent to the access network device or the core network device.

[0353] In some embodiments, the fourth information indicates: an RRC state of the terminal when operating as the reader and / or an operating spectrum of the terminal when operating as the reader.

[0354] In some embodiments, the method further comprises at least one of the following:

[0355] Sending fifth information to the access network device, where the fifth information is used to indicate: requesting to exit the state where the terminal operates as the reader and / or releasing resource configuration information for the terminal to operate as the reader;

[0356] Determining that a timer has timed out, exiting a state where the terminal operates as a reader and / or releasing resource configuration information for the terminal to operate as a reader;

[0357] Receive sixth information sent by the access network device, where the sixth information is used to instruct: triggering the terminal to exit a state in which the terminal operates as the reader and / or releasing resource configuration information for the terminal to operate as the reader.

[0358] In some embodiments, the method further comprises one of the following:

[0359] transmitting service data via an independent data channel established for the terminal;

[0360] The service data is transmitted through the shared data channel established for the reader service.

[0361] FIG4a is a flow chart of an information indication method according to an embodiment of the present disclosure. As shown in FIG4a, the present disclosure embodiment relates to an information indication method, which is executed by the access network device 102. The method includes:

[0362] Step S4101: Obtain first information.

[0363] In some embodiments, the optional implementation of step S4101 can refer to the optional implementation of step S2101 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0364] In some embodiments, the access network device receives the first information sent by the terminal, but is not limited thereto and may also receive the first information sent by other entities.

[0365] In some embodiments, the access network device obtains first information specified by a protocol.

[0366] In some embodiments, the access network device obtains the first information from an upper layer(s).

[0367] In some embodiments, the access network device performs processing to obtain the first information.

[0368] In some embodiments, step S4101 is omitted, and the core network device autonomously implements the function indicated by the first information, or the above function is default or by default.

[0369] Step S4102: Send the second information.

[0370] In some embodiments, the optional implementation of step S4102 can refer to the optional implementation of step S2102 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0371] Step S4103: Obtain the fourth information.

[0372] The optional implementation of step S4103 can refer to the optional implementation of step S2103 in Figure 2a and other related parts in the embodiment involved in Figure 2a, which will not be repeated here.

[0373] In some embodiments, the access network device receives the fourth information sent by the terminal or the core network device, but is not limited thereto and may also receive the fourth information sent by other entities.

[0374] In some embodiments, the access network device obtains fourth information specified by the protocol.

[0375] In some embodiments, the access network device obtains the fourth information from an upper layer(s).

[0376] In some embodiments, the access network device performs processing to obtain the fourth information.

[0377] In some embodiments, step S4104 is omitted, and the access network device autonomously implements the function indicated by the fourth information, or the above function is default or by default.

[0378] Step S4104: Send the third information.

[0379] The optional implementation of step S4104 can refer to the optional implementation of step S2104 in Figure 2a and other related parts in the embodiment involved in Figure 2a, which will not be repeated here.

[0380] Step S4105: Send the fifth message.

[0381] The optional implementation of step S4105 can refer to the optional implementation of step S2105 in Figure 2a and other related parts in the embodiment involved in Figure 2a, which will not be repeated here.

[0382] Step S4106: Send the sixth message.

[0383] The optional implementation of step S4106 can refer to the optional implementation of step S2106 in Figure 2a and other related parts in the embodiment involved in Figure 2a, which will not be repeated here.

[0384] The information indication method involved in the embodiments of the present disclosure may include at least one of steps S4101 to S4106. For example, step S4101 may be implemented as an independent embodiment, step S4102 may be implemented as an independent embodiment, step S4103 may be implemented as an independent embodiment, step S4104 may be implemented as an independent embodiment, step S4105 may be implemented as an independent embodiment, and step S4106 may be implemented as an independent embodiment. For example, step S4101 combined with step S4104 can be implemented as an independent embodiment, step S4101 combined with step S4104 and step S4105 can be implemented as an independent embodiment, step S4101 combined with step S4104 and step S4106 can be implemented as an independent embodiment, step S4101 combined with step S4104, step S4105 and step S4106 can be implemented as an independent embodiment, step S4101 combined with step S4102 and step S4104 can be implemented as an independent embodiment, and step S4101 combined with step S4103 and step S4104 can be implemented as an independent embodiment, but the present invention is not limited thereto. It should be noted that each step can be implemented independently, or, if there is no contradiction, the order can be arbitrarily changed and they can be freely combined for implementation.

[0385] FIG4 b is a flow chart of an information indication method according to an embodiment of the present disclosure. As shown in FIG4 b , the present disclosure embodiment relates to an information indication method, which is executed by the access network device 102 and includes:

[0386] Step S4201: Receive first information.

[0387] In some embodiments, the first information is used to request that the terminal operate as a reader for passive Internet of Things (IoT) communication.

[0388] In some embodiments, the optional implementation of step S4201 can refer to the optional implementation of step S2101 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0389] In some embodiments, sending the first information to the access network device includes:

[0390] During a radio resource control (RRC) connection establishment process or after the RRC connection is established, the first information sent by the terminal is received.

[0391] In some embodiments, the receiving the first information sent by the terminal includes:

[0392] Receive the first information sent by the access layer AS of the terminal.

[0393] In some embodiments, the receiving the first information sent by the terminal includes:

[0394] Receive message 3 MSG3 sent by the terminal;

[0395] The MSG3 includes the first information.

[0396] In some embodiments, the first information includes at least one of the following:

[0397] Become a readerBeReader information;

[0398] Information about AmbientIOT, an IoT device for ambient power;

[0399] Mobile originating signaling mo-Signalling information;

[0400] Information about mobile terminal data mo-data.

[0401] In some embodiments, the method further comprises:

[0402] sending second information to the terminal;

[0403] The second information includes parameters configured for the access type, and the parameters are configuration parameters used by the terminal to perform unified access control UAC.

[0404] In some embodiments, the method further comprises:

[0405] sending third information to the terminal;

[0406] The third information is used to indicate: accepting or rejecting the terminal from operating as a reader for passive IoT communication.

[0407] In some embodiments, the third information is used to indicate that the terminal is accepted to operate as a reader for passive IoT communication, and the third information includes at least one of the following: task identification, task information, cell information, signal radio bearer SRB for data reporting, and data radio bearer DRB for data reporting.

[0408] In some embodiments, the method further comprises:

[0409] Receiving fourth information sent by the terminal or core network device;

[0410] The fourth information is used to indicate: whether the terminal supports the function of operating as the reader, and / or whether the terminal expects or does not expect to operate as the reader.

[0411] In some embodiments, the receiving of the fourth information sent by the terminal or the core network device includes at least one of the following:

[0412] The fourth information sent by the terminal is received through the AS layer.

[0413] The fourth information sent by the core network device is received through the NAS layer.

[0414] In some embodiments, the receiving the fourth information sent by the terminal or the core network device includes:

[0415] Before AS layer security activation, receiving fourth information sent by the terminal or core network device;

[0416] After the AS layer security is activated, the fourth information sent by the terminal or the core network device is received.

[0417] In some embodiments, the fourth information indicates: an RRC state of the terminal when operating as the reader and / or an operating spectrum of the terminal when operating as the reader.

[0418] In some embodiments, the method further comprises at least one of the following:

[0419] receiving fifth information sent by the terminal, where the fifth information is used to indicate: requesting to exit a state where the terminal operates as the reader and / or releasing resource configuration information for the terminal to operate as the reader;

[0420] Sending sixth information to the terminal, where the sixth information is used to instruct: triggering the terminal to exit a state where the terminal operates as the reader and / or releasing resource configuration information for the terminal to operate as the reader.

[0421] In some embodiments, the method further comprises one of the following:

[0422] transmitting service data via an independent data channel established for the terminal;

[0423] The service data is transmitted through the shared data channel established for the reader service.

[0424] Figure 5a is an interactive diagram of an information indication method according to an embodiment of the present disclosure. As shown in Figure 5a, the present disclosure embodiment relates to an information indication method, which is used in a communication system 100 and includes one of the following steps:

[0425] Step S5101: The terminal sends first information to the access network device;

[0426] The first information is used to request that the terminal operate as a reader for passive Internet of Things (IoT) communication.

[0427] The optional implementation of step S5101 can refer to the optional implementation of step S2101 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0428] In some embodiments, the above method may include the methods of the above-mentioned communication system side, terminal side, network device side, etc. embodiments, which will not be repeated here.

[0429] In order to better understand the embodiments of the present disclosure, the present disclosure is further described below through some exemplary embodiments:

[0430] Example 1

[0431] The UE actively initiates RRC connection establishment and applies to the base station to become a reader:

[0432] In some embodiments, the UE initiates the RRC connection establishment process based on a trigger of the AS at the application layer or the NAS layer.

[0433] In some embodiments, the AS layer of the UE initiates the RRC connection establishment process.

[0434] In some embodiments, the MSG3 (e.g., RRCSetupRequest or RRCResumeRequest) message (corresponding to the first information) includes a cause value, which may be newly defined or original (or existing), such as BeReader, AmbientIOT, legacy mo-Signalling and / or legacy mo-data.

[0435] In some embodiments, the cause value may come from the AS layer or from the NAS layer.

[0436] In some embodiments, if MSG3 indicates the original cause value, for example, mo-Signalling, the UE may further indicate in MSG5 (corresponding to the first information) that the purpose of establishing this RRC connection is to apply to become a reader.

[0437] In some embodiments, a new access identity is defined for the RRC connection, corresponding to the service in which the UE accesses and becomes a reader.

[0438] In some embodiments, if a new cause value is indicated in MSG3, a new access type (access category) and / or Access identity also needs to be defined for the corresponding access.

[0439] In some embodiments, the access network device configures UAC (Unified Access Control) configuration parameters corresponding to the new access category through a system broadcast message (second information).

[0440] For example, UAC configuration parameters may include uac-BarringFactor, uac-BarringTime, and / or uac-BarringForAccessIdentity. That is, a newly defined access category will be associated with a set of configurations for the above parameters.

[0441] For example:

[0442] In some embodiments, when the RRC connection establishment or RRC recovery request is initiated, a UAC process is performed according to the access category and access identify of the access.

[0443] In some embodiments, after entering the RRC connected state, the UE reports its capability information (corresponding to the fourth information). The capability information includes the UE's ability to serve as an anchor point for collecting passive IoT data, i.e., as a reader. Optionally, the UE may also indicate to the base station or the core network (CN) whether the UE is willing to serve as a reader (corresponding to the fourth information).

[0444] In some embodiments, the UE reports UE capabilities and / or user consent to the gNB through the AS layer UE capability reporting process.

[0445] In some embodiments, the UE may report UE capabilities and / or user consent to the core network CN via NAS layer signaling, for example, based on the UE registration process; the gNB may obtain UE capabilities and / or user consent by sending them to the gNB via the core network, for example, during the initial context establishment process.

[0446] In some embodiments, user consent may not be reported by the UE. Instead, user consent may be user subscription data and may be sent to the gNB via the core network. For example, the gNB obtains user consent during the initial context establishment process.

[0447] In some embodiments, the UE may report the UE capabilities and / or user consent before AS security activation, for example, in a MSG5 message, or after AS security activation, for example, in a UEAssistanceInformation message. This may also be a newly defined message.

[0448] In some embodiments, the UE may also report auxiliary parameters, for example, in which RRC state the UE expects to perform reader work, the spectrum expected to be the reader work, such as DL, UL, Gaurdband or standalone, and may further report a determined band or frequency range.

[0449] Example 2

[0450] The process of UE exiting from becoming a reader:

[0451] In some embodiments, the UE sends RRC signaling (corresponding to the fifth information) to the base station, where the RRC signaling is used to indicate that the UE wants to exit the reader role, and the network side deconfigures the reader-related configuration of the UE.

[0452] In some embodiments, when configuring the UE as a reader, the network side configures a timer. When the UE receives the configuration information as a reader or the configuration information of the timer, the timer is started. If the timer times out, the UE locally releases the configuration information as a reader.

[0453] In some embodiments, the configuration information of the reader includes but is not limited to: task ID, task information (for example, the IP address of the data forwarding route and / or the data information of the task request), cell information (for example, the cell ID, name, area name and / or frequency, etc.) and / or new SRB or DRB (for IOT data reporting).

[0454] In some embodiments, the base station actively instructs the UE to "deactivate" the ambient power Internet of Things (AIOT, AmbientIOT) reader (corresponding to the sixth information).

[0455] For example, the UE acts as an AIOT reader to provide an excitation signal to the device. When the device transmission is completed, the UE that provides the excitation signal is "deactivated" to save energy; or, in order to reclaim the AIOT resources allocated to the UE, the base station notifies the deactivation through an instruction, and the instruction can be DCI, MAC CE or RRC signaling.

[0456] Example 3

[0457] Establishment of an ambient IoT session in the access network:

[0458] In some embodiments, a per-UE PDU session may be established for the UE, and the UE forwards routing data through a dedicated GTP tunnel or IP channel.

[0459] In some embodiments, the network side may also establish a shared PDU session or task for the task. After the UE reports the data to the base station, the base station forwards the routing data through a shared GTP tunnel or shared signaling connection, for example, based on NGAP, according to information associated with the reported data.

[0460] In the embodiments of the present disclosure, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations of other embodiments.

[0461] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0462] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0463] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0464] Figure 6a is a schematic diagram of the structure of a terminal 6100 proposed in an embodiment of the present disclosure. As shown in Figure 6a, the terminal 6100 may include: at least one of a transceiver module 6101 and a processing module 6102. In some embodiments, the transceiver module 6101 is used to receive the first information. Optionally, the transceiver module 6101 is used to perform at least one of the communication steps such as sending and / or receiving performed by the terminal 6100 in any of the above methods, which are not further described here. Optionally, the processing module 6102 is used to perform at least one of the other steps performed by the terminal 6100 in any of the above methods, which are not further described here.

[0465] Figure 6b is a schematic diagram of the structure of the access network device 6200 proposed in an embodiment of the present disclosure. As shown in Figure 6b, the access network device 6200 may include: at least one of a transceiver module 6201, a processing module 6202, etc. In some embodiments, the transceiver module 6201 is used to send the first information. Optionally, the transceiver module 6201 is used to perform at least one of the communication steps such as sending and / or receiving performed by the terminal 6200 in any of the above methods, which will not be repeated here. In some embodiments, the transceiver module 6201 may include a sending module and / or a receiving module, and the sending module and the receiving module may be separate or integrated together. Optionally, the transceiver module 6201 may be interchangeable with the transceiver. Optionally, the processing module 6202 is used to perform at least one of the other steps performed by the access network device 6200 in any of the above methods, which will not be repeated here.

[0466] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0467] Figure 7a is a schematic diagram of the structure of a communication device 8100 proposed in an embodiment of the present disclosure. Communication device 8100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 8100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0468] As shown in Figure 7a, the communication device 8100 includes one or more processors 8101. The processor 8101 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 (such as a base station, baseband chip, terminal device, terminal device chip, DU or CU, etc.), execute programs, and process program data. The communication device 8100 is used to perform any of the above methods.

[0469] In some embodiments, the communication device 8100 further includes one or more memories 8102 for storing instructions. Optionally, all or part of the memories 8102 may be located outside the communication device 8100.

[0470] In some embodiments, the communication device 8100 further includes one or more transceivers 8103. When the communication device 8100 includes one or more transceivers 8103, the transceiver 8103 performs at least one of the communication steps such as sending and / or receiving in the above method, and the processor 8101 performs at least one of the other steps.

[0471] In some embodiments, a transceiver may include a receiver and / or a transmitter. The receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0472] In some embodiments, the communication device 8100 may include one or more interface circuits 8104. Optionally, the interface circuit 8104 is connected to the memory 8102. The interface circuit 8104 may be configured to receive signals from the memory 8102 or other devices, and may be configured to send signals to the memory 8102 or other devices. For example, the interface circuit 8104 may read instructions stored in the memory 8102 and send the instructions to the processor 8101.

[0473] The communication device 8100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG. 7a. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0474] FIG7 b is a schematic diagram of the structure of the chip 8200 proposed in an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 8200 shown in FIG7 b , but the present disclosure is not limited thereto.

[0475] The chip 8200 includes one or more processors 8201 , and the chip 8200 is configured to execute any of the above methods.

[0476] In some embodiments, the chip 8200 further includes one or more interface circuits 8202. Optionally, the interface circuit 8202 is connected to the memory 8203. The interface circuit 8202 can be used to receive signals from the memory 8203 or other devices, and can be used to send signals to the memory 8203 or other devices. For example, the interface circuit 8202 can read instructions stored in the memory 8203 and send the instructions to the processor 8201.

[0477] In some embodiments, the interface circuit 8202 performs at least one of the communication steps such as sending and / or receiving in the above method, and the processor 8201 performs at least one of the other steps.

[0478] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0479] In some embodiments, the chip 8200 further includes one or more memories 8203 for storing instructions. Alternatively, all or part of the memories 8203 may be outside the chip 8200.

[0480] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto, and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto, and may also be a temporary storage medium.

[0481] The present disclosure also provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0482] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. An information indication method, characterized in that, The method is executed by a terminal, and the method includes: Sending first information to an access network device; Wherein, the first information is used to request that the terminal operates as a reader for passive Internet of Things (IoT) communication.

2. The method according to claim 1, wherein The sending of the first information to the access network device includes: During the establishment process of a Radio Resource Control (RRC) connection or after the establishment of the RRC connection, sending the first information to the access network device.

3. The method according to claim 1 or 2, characterized in that, The sending of the first information to the access network device includes: Based on a trigger from the application layer or the Non-Access Stratum (NAS) layer of the terminal, the Access Stratum (AS) layer of the terminal sends the first information to the access network device.

4. The method according to claim 2, wherein The sending of the first information to the access network device includes: Sending Message 3 (MSG3) or Message 5 (MSG5) to the access network device; Wherein, MSG3 contains the first information, and MSG5 contains the first information.

5. The method according to claim 4, characterized in that, The first information includes at least one of the following: Information to become a reader (BeReader); Information of an Ambient Internet of Things (AmbientIOT) device of ambient power; Information of mobile originator signalling (mo-Signalling); Information of mobile originator data (mo-data).

6. The method according to claim 4, characterized in that The method further includes: Obtaining the first information from the AS layer or the NAS layer of the terminal.

7. The method according to any one of claims 1 to 6, characterized in that The method further includes: Determining the access type and / or the access identity identifier corresponding to the RRC connection establishment process; Wherein, the access type indicates that the terminal enters the RRC connection state as the reader; the access identity identifier indicates that the terminal operates as the reader.

8. The method according to claim 7, wherein The method further includes: Receiving second information sent by the access network device, wherein the second information includes parameters configured for the access type, and the parameters are configuration parameters for the terminal to perform Unified Access Control (UAC).

9. The method according to claim 7, wherein The method further includes: Performing UAC based on the access type and / or the access identity identifier.

10. The method according to any one of claims 1-9, characterized in that, The method further includes: Receiving third information sent by the access network device; Wherein, the third information is used to indicate: accepting or rejecting the terminal to operate as a reader for passive IoT communication.

11. The method according to claim 10, wherein When the third information is used to indicate accepting the terminal to operate as a reader for passive IoT communication, the third information includes at least one of the following: a task identifier, task information, cell information, a Signalling Radio Bearer (SRB) for data reporting, and a Data Radio Bearer (DRB) for data reporting.

12. The method according to any one of claims 2-11, characterized in that, The method further includes: Determining to switch to the RRC connection state, and sending fourth information to the access network device or the core network device; Wherein, the fourth information is used to indicate: the terminal supports the function of operating as the reader, and / or, the terminal expects or does not expect to operate as the reader.

13. The method according to claim 12, wherein The sending of the fourth information to the access network device or the core network device includes at least one of the following: Sending the fourth information to the access network device through the AS layer; Sending the fourth information to the core network device through the NAS layer.

14. The method according to claim 12, wherein The sending of the fourth information to the access network device or the core network device includes: Before the AS layer security activation, send the fourth information to the access network device or the core network device; After the AS layer security activation, send the fourth information to the access network device or the core network device.

15. The method according to claim 12, wherein The fourth information indicates: the RRC state when the terminal operates as the reader and / or the working spectrum when the terminal operates as the reader.

16. The method according to any one of claims 1 to 15, characterized in that The method further includes at least one of the following: Send fifth information to the access network device, where the fifth information is used to indicate: request to exit the state where the terminal operates as the reader And / or release the resource configuration information for the terminal to operate as the reader; Determine that the timer times out, exit the state where the terminal operates as the reader and / or release the resource configuration information for the terminal to operate as the reader; Receive sixth information sent by the access network device, where the sixth information is used to indicate: trigger the terminal to exit the state where the terminal operates as the reader and / or release the resource configuration information for the terminal to operate as the reader.

17. The method according to any one of claims 1 to 16, characterized in that, The method further includes one of the following: Transmit service data through an independent data channel established for the terminal; Transmit service data through a shared data channel established for reader services.

18. An information indication method, characterized in that, The method is executed by an access network device, and the method includes: Receive first information sent by a terminal; Wherein, the first information is used to request: the terminal operates as a reader for passive Internet of Things (IoT) communication.

19. The method according to claim 18, wherein The sending the first information to the access network device includes: During the establishment of a Radio Resource Control (RRC) connection or after the RRC connection is established, receive the first information sent by the terminal.

20. The method according to claim 18 or 19, characterized in that The receiving the first information sent by the terminal includes: Receive the first information sent by the Access Stratum (AS) of the terminal.

21. The method according to claim 19, wherein The receiving the first information sent by the terminal includes: Receive Message 3 (MSG3) or Message 5 (MSG5) sent by the terminal; Wherein, the MSG3 contains the first information, and the MSG5 contains the first information.

22. The method according to claim 21, wherein The first information includes at least one of the following: Information to become a reader (BeReader); Information of an Ambient Internet of Things (AmbientIOT) device of ambient power; Information of mobile originator signalling (mo-Signalling); Information of mobile terminal data (mo-data).

23. The method according to claim 18, characterized in that, The method further includes: Send second information to the terminal; Wherein, the second information includes parameters configured for the access type, and the parameters are configuration parameters for the terminal to perform Unified Access Control (UAC).

24. The method according to any one of claims 18-23, characterized in that, The method further includes: Send third information to the terminal; Wherein, the third information is used to indicate: accept or reject the terminal to operate as a reader for passive IoT communication.

25. The method according to claim 24, wherein When the third information is used to indicate accepting the terminal to operate as a reader for passive IoT communication, the third information includes at least one of the following: task identifier, task information, cell information, Signalling Radio Bearer (SRB) for data reporting, and Data Radio Bearer (DRB) for data reporting.

26. The method according to any one of claims 19-25, characterized in that, The method further includes: Receive the fourth information sent by the terminal or the core network device; Wherein, the fourth information is used to indicate that the terminal supports the function of operating as the reader, and / or the terminal expects or does not expect to operate as the reader.

27. The method according to claim 26, wherein The receiving the fourth information sent by the terminal or the core network device includes at least one of the following: Receive the fourth information sent by the terminal through the AS layer; Receive the fourth information sent by the core network device through the NAS layer.

28. The method according to claim 26, wherein The receiving the fourth information sent by the terminal or the core network device includes: Receive the fourth information sent by the terminal or the core network device before the AS layer security activation; Receive the fourth information sent by the terminal or the core network device after the AS layer security activation.

29. The method according to claim 26, wherein The fourth information indicates the RRC state when the terminal operates as the reader and / or the operating spectrum when the terminal operates as the reader.

30. The method according to any one of claims 18-29, characterized in that, The method further includes at least one of the following: Receive the fifth information sent by the terminal, where the fifth information is used to indicate a request to exit the state where the terminal operates as the reader and / or release the resource configuration information for the terminal to operate as the reader; Send the sixth information to the terminal, where the sixth information is used to indicate triggering the terminal to exit the state where the terminal operates as the reader and / or release the resource configuration information for the terminal to operate as the reader. The method further includes one of the following:

31. The method according to claim 18, characterized in that, Transmit service data through an independent data channel established for the terminal; Transmit service data through a shared data channel established for the reader service. The method includes:

32. An information indication method, characterized in that, The terminal sends the first information to the access network device; Wherein, the first information is used to request that the terminal operates as a reader for passive Internet of Things (IoT) communication. The terminal includes:

33. A terminal, characterized in that, A transceiver module configured to send the first information to the access network device; Wherein, the first information is used to request that the terminal operates as a reader for passive Internet of Things (IoT) communication. The access network device includes:

34. An access network device, characterized in that, A transceiver module configured to receive the first information sent by the terminal; Wherein, the first information is used to request that the terminal operates as a reader for passive Internet of Things (IoT) communication. The information indication system includes a terminal and a first communication node; the terminal is configured to implement the communication method according to any one of claims 1 to 17, and the access network device is configured to implement the information indication method according to any one of claims 18 to 31.

35. A communication system, characterized in that, The terminal includes:

36. A terminal, characterized in that, One or more processors; Wherein, the terminal is used for the terminal to execute the information indication method according to any one of claims 1 to 17. The access network device includes:

37. An access network device, wherein, One or more processors; Wherein, the first communication node is used to execute the information indication method according to any one of claims 18 to 31. The storage medium stores instructions, which, when running on a communication device, cause the communication device to execute the information indication method according to any one of claims 1 to 17 and claims 18 to 31.

38. A storage medium, wherein, ​

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