Information transmission method and apparatus, communication device, communication system and storage medium

Abstract

Embodiments of the present disclosure provide an information transmission method and apparatus, a communication device, a communication system, and a storage medium. An access network device sends first information, the first information being used for indicating a task configuration of an Internet of Things (IoT) task, wherein the IoT task is executed when a terminal is at least in an RRC non-connected state, the terminal is associated with a reader for backscatter transmission in the IoT task, and the RRC non-connected state comprises an RRC idle state and / or an RRC inactive state. According to the technical solution provided by the embodiments of the present disclosure, rapid and low-cost deployment of passive IoT is realized, and the objective of power saving of the terminal is achieved.

Description

Information transmission method and device, communication equipment, communication system and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to information transmission methods and devices, communication equipment, communication systems, and storage media. Background Art

[0002] In Internet of Things (IoT) networks, traditional IoT devices are typically battery-powered. The proliferation of IoT devices has pushed maintenance costs, including labor and battery costs, to a new level. A vast number of 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 challenging in extreme environmental conditions.

[0003] Summary of the Invention

[0004] As the functionality of terminals increases, their energy consumption increases, resulting in weak battery life.

[0005] Embodiments of the present disclosure provide an information transmission method and apparatus, a communication device, and a storage medium.

[0006] According to a first aspect of an embodiment of the present disclosure, an information transmission method is provided, wherein the method is performed by an access network device, and the method includes:

[0007] Sending first information, where the first information is used to indicate a task configuration of an Internet of Things (IoT) task, wherein the IoT task is for execution when the terminal is at least in an RRC non-connected state, wherein the terminal is associated with a reader of backscatter transmission in the IoT task, and the RRC non-connected state includes: an RRC idle state and / or an RRC inactive state.

[0008] According to a second aspect of an embodiment of the present disclosure, an embodiment of the present disclosure provides an information transmission method, wherein the method is performed by a terminal, and the method includes:

[0009] Receive first information, where the first information is used to indicate a task configuration of an Internet of Things (IoT) task, wherein the IoT task is for the terminal to be executed when at least in an RRC non-connected state, wherein the terminal is associated with a reader of backscatter transmission in the IoT task, and the RRC non-connected state includes: an RRC idle state and / or an RRC inactive state.

[0010] According to a third aspect of an embodiment of the present disclosure, an embodiment of the present disclosure provides an information transmission method, wherein the method is performed by a core network device, and the method includes:

[0011] Send a task request associated with an IoT task, wherein the task request is used to trigger an access network device to send first information, and the first information is used to indicate the task configuration of the Internet of Things IoT task, wherein the IoT task is for execution when the terminal is at least in an RRC non-connected state, wherein the terminal is associated with a reader of backscatter transmission in the IoT task, and the RRC non-connected state includes: RRC idle state and / or RRC inactive state.

[0012] According to a fourth aspect of an embodiment of the present disclosure, an embodiment of the present disclosure provides an information transmission method, wherein the method is performed by a communication system, and the method includes:

[0013] The access network device sends first information, where the first information is used to indicate a task configuration of an Internet of Things (IoT) task, wherein the IoT task is for execution when the terminal is at least in an RRC non-connected state, wherein the terminal is associated with a reader of backscatter transmission in the IoT task, and the RRC non-connected state includes: an RRC idle state and / or an RRC inactive state.

[0014] According to a fifth aspect of the embodiments of the present disclosure, the embodiments of the present disclosure provide a first information transmission device, wherein the first information transmission device includes:

[0015] The first transceiver module is configured to send first information, where the first information is used to indicate a task configuration of an Internet of Things (IoT) task, wherein the IoT task is executed when the terminal is at least in an RRC non-connected state, wherein the terminal is associated with a reader of backscatter transmission in the IoT task, and the RRC non-connected state includes: an RRC idle state and / or an RRC inactive state.

[0016] According to a sixth aspect of an embodiment of the present disclosure, an embodiment of the present disclosure provides a second information transmission device, wherein the second information transmission device includes:

[0017] The second transceiver module is configured to receive first information, where the first information is used to indicate a task configuration of an Internet of Things (IoT) task, wherein the IoT task is for execution when the terminal is at least in an RRC non-connected state, wherein the terminal is associated with a reader of backscatter transmission in the IoT task, and the RRC non-connected state includes: an RRC idle state and / or an RRC inactive state.

[0018] According to a seventh aspect of the embodiments of the present disclosure, the embodiments of the present disclosure provide a third information transmission device, wherein the third information transmission device includes:

[0019] The third transceiver module is configured to send a task request associated with the IoT task, wherein the task request is used to trigger the access network device to send first information, and the first information is used to indicate the task configuration of the Internet of Things IoT task, wherein the IoT task is for the terminal to be executed when at least in the RRC non-connected state, wherein the terminal is associated with the reader of the backscatter transmission in the IoT task, and the RRC non-connected state includes: RRC idle state and / or RRC inactive state.

[0020] According to the eighth aspect of the embodiment of the present disclosure, the embodiment of the present disclosure provides a communication system, wherein the information transmission system includes a terminal, an access network device and a core network device; the access network device is configured to implement the information transmission method described in the first aspect, the terminal is configured to implement the information transmission method of the second aspect, and the core network device is configured to implement the information transmission method described in the third aspect.

[0021] According to a ninth aspect of an embodiment of the present disclosure, an embodiment of the present disclosure provides a communication device, wherein the communication device includes:

[0022] one or more processors;

[0023] The processor is used to call instructions to enable the communication device to execute the information transmission method described in the first aspect, the second aspect, and the third aspect.

[0024] According to the tenth aspect of the embodiment of the present disclosure, the embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, and when the instructions are executed on a communication device, the communication device executes the information transmission method described in the first aspect, the second aspect, or the third aspect.

[0025] The technical solution provided by the embodiments of the present disclosure realizes the rapid and low-cost deployment of the passive Internet of Things, while achieving the purpose of terminal power saving.

[0026] 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

[0027] 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.

[0028] FIG1a is a schematic diagram showing an architecture of a communication system according to an exemplary embodiment;

[0029] FIG1b is a schematic diagram of backscattering according to an exemplary embodiment;

[0030] FIG1c is a schematic diagram of a network topology architecture according to an exemplary embodiment;

[0031] FIG1d is a schematic diagram of a network topology architecture according to an exemplary embodiment;

[0032] FIG1e is a schematic diagram of a network topology architecture according to an exemplary embodiment;

[0033] FIG1f is a schematic diagram of a network topology architecture according to an exemplary embodiment;

[0034] FIG1g is a schematic diagram showing an environmental Internet of Things type according to an exemplary embodiment;

[0035] FIG2a is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0036] FIG2 b is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0037] FIG3a is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0038] FIG3 b is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0039] FIG4a is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0040] FIG4 b is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0041] FIG4c is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0042] FIG4 d is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0043] FIG5a is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0044] FIG6a is a schematic structural diagram of a first information transmission device according to an exemplary embodiment;

[0045] FIG6b is a schematic structural diagram of a second information transmission device according to an exemplary embodiment;

[0046] FIG6c is a schematic structural diagram of a third information transmission device according to an exemplary embodiment;

[0047] FIG7a is a schematic structural diagram of a UE according to an exemplary embodiment;

[0048] Fig. 7b is a schematic structural diagram of a communication device according to an exemplary embodiment. DETAILED DESCRIPTION

[0049] Embodiments of the present disclosure provide an information transmission method and apparatus, a communication device, a communication system, and a storage medium.

[0050] In a first aspect, an embodiment of the present disclosure provides an information transmission method, wherein the method is performed by an access network device, and the method includes:

[0051] Sending first information, where the first information is used to indicate a task configuration of an Internet of Things (IoT) task, wherein the IoT task is for execution when the terminal is at least in an RRC non-connected state, wherein the terminal is associated with a reader of backscatter transmission in the IoT task, and the RRC non-connected state includes: an RRC idle state and / or an RRC inactive state.

[0052] In the above embodiment, the access network device indicates the task configuration of the IoT task for the terminal to be executed in the RRC non-connected state, so that the terminal can execute the IoT task in the RRC non-connected state, realizing fast and low-cost deployment of the passive Internet of Things, while achieving the purpose of terminal power saving.

[0053] In conjunction with some embodiments of the first aspect, in some embodiments, sending the first information includes at least one of the following:

[0054] Sending a system message carrying the first information, wherein the system message is at least received by the terminal in the RRC unconnected state;

[0055] Send dedicated signaling carrying the first information, wherein the dedicated signaling is received by the terminal in the RRC connected state.

[0056] In the above embodiment, the first information is carried in a system message or dedicated signaling, and the access network device can indicate the RRC connected state terminal and the RRC non-connected state terminal, thereby improving the indication flexibility.

[0057] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0058] Sending a paging message, wherein the paging message carries second information, and the second information is at least used to instruct the terminal in the RRC non-connected state to receive the first information carried by the system message.

[0059] In the above embodiment, for the RRC non-connected state terminal, the second information carried in the paging information instructs the terminal to receive the first information, so that the non-connected state terminal can receive the first information.

[0060] In combination with some embodiments of the first aspect, in some embodiments, the paging information carries indication information indicating a terminal identifier, and the second information is at least used to instruct the terminal corresponding to the terminal identifier to receive the first information carried by the system message;

[0061] The paging information does not carry indication information indicating the terminal identity, and the second information is at least used to instruct all the terminals that meet a predetermined condition to receive the first information carried in the system message.

[0062] In the above embodiment, the paging information may instruct all terminals to receive the first information, or may instruct a terminal with a specific terminal identifier to receive the first information, thereby improving the flexibility of the instruction.

[0063] In conjunction with some embodiments of the first aspect, in some embodiments,

[0064] Obtain the terminal identifier associated with the IoT task from a core network device.

[0065] In the above embodiment, the paging information can be used together with the first information received by the terminal identified by the IoT task terminal, thereby improving the accuracy of the indication.

[0066] In conjunction with some embodiments of the first aspect, in some embodiments, the second information is further used to indicate a status of the first information, where the status of the first information includes at least one of the following:

[0067] the first information is released;

[0068] The first information is updated;

[0069] The first message ends.

[0070] In the above embodiment, the second information can provide additional instructions, thereby improving the utilization efficiency of signaling.

[0071] In combination with some embodiments of the first aspect, in some embodiments, the paging information includes at least one of the following: paging downlink control information DCI; a paging message.

[0072] In the above embodiment, different paging messages can be used to carry the second information, which improves the flexibility of the second information indication.

[0073] In conjunction with some embodiments of the first aspect, in some embodiments, sending the first information includes:

[0074] Receive the task request associated with the IoT task sent by the core network device, and send the first information.

[0075] In the above embodiment, the access network device sends the first information based on the task request associated with the IoT task, thereby reducing the blindness of sending the first information and improving communication efficiency.

[0076] In conjunction with some embodiments of the first aspect, in some embodiments, the task configuration includes:

[0077] The task identifier of the IoT task;

[0078] Configuration of execution time of the IoT task;

[0079] The identifier of the IoT device associated with the IoT task;

[0080] An instruction to allow the terminal in the RRC non-connected state to execute the IoT task;

[0081] An indication of the data transmission delay sensitivity of the IoT task;

[0082] The IoT task is associated with the communication resource configuration of the communication cell.

[0083] In the above embodiment, the access network device instructs the terminal to perform the configuration required for the IoT task through task configuration, thereby improving the reliability of the terminal in performing the IoT task.

[0084] In conjunction with some embodiments of the first aspect, in some embodiments, the terminal is associated with a reader for backscatter transmission in an IoT task and / or the terminal satisfies a condition, including at least one of the following:

[0085] The terminal is authorized to be the reader;

[0086] The terminal desires or agrees to become the reader;

[0087] The terminal supports becoming the reader;

[0088] The terminal signs up to become the reader.

[0089] In the above embodiment, the access network device needs to determine whether the terminal has the capability to become a reader before allocating IoT tasks.

[0090] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0091] Receive an authorization request reported by the terminal, where the authorization request indicates at least one of the following:

[0092] The terminal desires or agrees to become the reader;

[0093] The terminal supports being the reader.

[0094] In the above embodiment, the access network device receives the authorization request, and can then perform subsequent authorization operations.

[0095] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0096] Authorization information is sent to the terminal, where the authorization information indicates that the terminal is authorized to be the reader.

[0097] In the above embodiment, the access network device sends authorization information for the terminal to confirm that the terminal becomes a reader.

[0098] In a second aspect, an embodiment of the present disclosure provides an information transmission method, wherein the method is performed by a terminal, and the method includes:

[0099] Receive first information, where the first information is used to indicate a task configuration of an Internet of Things (IoT) task, wherein the IoT task is for the terminal to be executed when at least in an RRC non-connected state, wherein the terminal is associated with a reader of backscatter transmission in the IoT task, and the RRC non-connected state includes: an RRC idle state and / or an RRC inactive state.

[0100] In the above embodiment, the terminal receives the task configuration of the IoT task to be executed in the RRC non-connected state, so that the terminal can execute the IoT task in the non-connected state, realizing fast and low-cost deployment of the passive Internet of Things, while achieving the purpose of terminal power saving.

[0101] In conjunction with some embodiments of the second aspect, in some embodiments, receiving the first information includes at least one of the following:

[0102] receiving a system message carrying the first information, wherein the system message is at least received by the terminal in the RRC unconnected state;

[0103] Receive dedicated signaling carrying the first information, wherein the dedicated signaling is received by the terminal in the RRC connected state.

[0104] In the above embodiment, the first information is carried in a system message or dedicated signaling, and both the RRC connected state terminal and the RRC non-connected state terminal can obtain the first information, thereby improving the reliability of receiving the first information.

[0105] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0106] Receive paging information, wherein the paging information carries second information, and the second information is at least used to instruct the terminal in the RRC non-connected state to receive the first information carried by the system message.

[0107] In the above embodiment, for the RRC non-connected state terminal, the terminal instructs the reception of the first information through the second information carried in the paging information, so that the non-connected state terminal can receive the first information.

[0108] In conjunction with some embodiments of the second aspect, in some embodiments, the paging information carries indication information indicating a terminal identifier, and the second information is at least used to instruct the terminal corresponding to the terminal identifier to receive the first information carried by the system message;

[0109] The paging information does not carry indication information indicating the terminal identity, and the second information is at least used to instruct all the terminals that meet a predetermined condition to receive the first information carried in the system message.

[0110] In the above embodiment, the paging information may instruct all terminals to receive the first information, or may instruct a terminal with a specific terminal identifier to receive the first information, thereby improving the flexibility of the instruction.

[0111] In combination with some embodiments of the second aspect, in some embodiments, the terminal identifier is obtained by the access network device from the core network device, and the terminal identifier is associated with the IoT task.

[0112] In the above embodiment, the paging information can be used together with the first information received by the terminal identified by the IoT task terminal, thereby improving the accuracy of the indication.

[0113] In conjunction with some embodiments of the second aspect, in some embodiments, the second information is further used to indicate a status of the first information, where the status of the first information includes at least one of the following:

[0114] the first information is released;

[0115] The first information is updated;

[0116] The first message ends.

[0117] In the above embodiment, the second information can provide additional instructions, thereby improving the utilization efficiency of signaling.

[0118] In combination with some embodiments of the second aspect, in some embodiments, the paging information includes at least one of the following: paging downlink control information DCI; a paging message.

[0119] In the above embodiment, different paging messages can be used to carry the second information, which improves the flexibility of the second information indication.

[0120] In conjunction with some embodiments of the second aspect, in some embodiments, the task configuration includes:

[0121] The task identifier of the IoT task;

[0122] Execution time configuration of the IoT task;

[0123] The identifier of the IoT device associated with the IoT task;

[0124] An instruction to allow the terminal in the RRC non-connected state to execute the IoT task;

[0125] An indication of the data transmission delay sensitivity of the IoT task;

[0126] The IoT task is associated with the communication resource configuration of the communication cell.

[0127] In the above embodiment, the access network device instructs the terminal to perform the configuration required for the IoT task through task configuration, thereby improving the reliability of the terminal in performing the IoT task.

[0128] In conjunction with some embodiments of the second aspect, in some embodiments, the terminal is associated with a reader for backscatter transmission in an IoT task and / or the terminal satisfies a condition, including at least one of the following:

[0129] The terminal is authorized to be the reader;

[0130] The terminal desires or agrees to become the reader;

[0131] The terminal supports becoming the reader;

[0132] The terminal signs up to become the reader.

[0133] In the above embodiment, the terminal needs to determine whether it has the capability to become a reader before receiving the IoT task.

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

[0135] Send an authorization request to an access network device or a core network device, where the authorization request indicates at least one of the following:

[0136] The terminal desires or agrees to become the reader;

[0137] The terminal supports being the reader.

[0138] In the above embodiment, the terminal sends an authorization request, so that the access network device or the core network device can perform subsequent authorization operations.

[0139] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0140] Receive authorization information sent by the access network device or the core network device, where the authorization information indicates that the terminal is authorized to become the reader.

[0141] In the above embodiment, the terminal may confirm that the terminal becomes a reader through authorization information.

[0142] In a third aspect, an embodiment of the present disclosure provides an information transmission method, wherein the method is performed by a core network device, and the method includes:

[0143] Send a task request associated with an IoT task, wherein the task request is used to trigger an access network device to send first information, and the first information is used to indicate the task configuration of the Internet of Things IoT task, wherein the IoT task is for execution when the terminal is at least in an RRC non-connected state, wherein the terminal is associated with a reader of backscatter transmission in the IoT task, and the RRC non-connected state includes: RRC idle state and / or RRC inactive state.

[0144] In the above embodiment, the core network device triggers the access network device to send the first information through a task request associated with the IoT task, thereby reducing the blindness of the first information transmission and improving communication efficiency. The first information indicates the task configuration of the IoT task for the terminal to execute in the RRC non-connected state, enabling the terminal to execute the IoT task in the non-connected state, achieving rapid and low-cost deployment of the passive Internet of Things, and simultaneously achieving the purpose of terminal power conservation.

[0145] In conjunction with some embodiments of the third aspect, in some embodiments, the first information is carried in at least one of the following:

[0146] System message, wherein the system message is at least received by the terminal in the RRC non-connected state;

[0147] Dedicated signaling, wherein the dedicated signaling is received by the terminal in the RRC connected state.

[0148] In the above embodiment, the first information is carried in a system message or dedicated signaling, and the first information can be indicated to both the RRC connected state terminal and the RRC non-connected state terminal, thereby improving the indication flexibility.

[0149] In combination with some embodiments of the third aspect, in some embodiments, the task request is used to trigger the access network device to send a paging message, wherein the paging message carries second information, and the second information is at least used to indicate that the terminal in the RRC non-connected state receives the first information carried by the system message.

[0150] In the above embodiment, for the RRC non-connected state terminal, the second information carried in the paging information instructs the terminal to receive the first information, so that the non-connected state terminal can receive the first information.

[0151] In conjunction with some embodiments of the third aspect, in some embodiments, the paging information carries indication information indicating a terminal identifier, and the second information is at least used to instruct the terminal corresponding to the terminal identifier to receive the first information carried by the system message;

[0152] The paging information does not carry indication information indicating the terminal identity, and the second information is at least used to instruct all the terminals that meet a predetermined condition to receive the first information carried in the system message.

[0153] In the above embodiment, the paging information may instruct all terminals to receive the first information, or may instruct a terminal with a specific terminal identifier to receive the first information, thereby improving the flexibility of the instruction.

[0154] In combination with some embodiments of the third aspect, in some embodiments, the terminal identifier is obtained by the access network device from the core network device, and the terminal identifier is associated with the IoT task.

[0155] In the above embodiment, the paging information can be used together with the first information received by the terminal identified by the IoT task terminal, thereby improving the accuracy of the indication.

[0156] In conjunction with some embodiments of the third aspect, in some embodiments, the second information is further used to indicate a status of the first information, where the status of the first information includes at least one of the following:

[0157] the first information is released;

[0158] The first information is updated;

[0159] The first message ends.

[0160] In the above embodiment, the second information can provide additional instructions, thereby improving the utilization efficiency of signaling.

[0161] In combination with some embodiments of the third aspect, in some embodiments, the paging information includes at least one of the following: paging downlink control information DCI; a paging message.

[0162] In the above embodiment, different paging messages can be used to carry the second information, which improves the flexibility of the second information indication.

[0163] In conjunction with some embodiments of the third aspect, in some embodiments, the task configuration includes:

[0164] The task identifier of the IoT task;

[0165] Configuration of execution time of the IoT task;

[0166] The identifier of the IoT device associated with the IoT task;

[0167] An instruction to allow the terminal in the RRC non-connected state to execute the IoT task;

[0168] An indication of the data transmission delay sensitivity of the IoT task;

[0169] The IoT task is associated with the communication resource configuration of the communication cell.

[0170] In the above embodiment, the task configuration indicates the configuration required for the terminal to perform the IoT task, thereby improving the reliability of the terminal in performing the IoT task.

[0171] In conjunction with some embodiments of the third aspect, in some embodiments, the terminal is associated with a reader of backscatter transmission in an IoT task and / or the terminal satisfies a predetermined condition, including at least one of the following:

[0172] The terminal is authorized to be the reader;

[0173] The terminal desires or agrees to become the reader;

[0174] The terminal supports becoming the reader;

[0175] The terminal signs up to become the reader.

[0176] In the above embodiment, it is necessary to determine whether the terminal has the ability to become a reader before the IoT task can be assigned.

[0177] In conjunction with some embodiments of the third aspect, in some embodiments, the method further includes:

[0178] Receive an authorization request reported by the terminal, where the authorization request indicates at least one of the following:

[0179] The terminal desires or agrees to become the reader;

[0180] The terminal supports being the reader.

[0181] In the above embodiment, the core network device receives the authorization request, and can then perform subsequent authorization operations.

[0182] In conjunction with some embodiments of the third aspect, in some embodiments, the method further includes:

[0183] Authorization information is sent to the terminal, where the authorization information indicates that the terminal is authorized to be the reader.

[0184] In the above embodiment, the core network device sends authorization information for the terminal to confirm that the terminal becomes a reader.

[0185] In a fourth aspect, an embodiment of the present disclosure provides an information transmission method, which is performed by a communication system and includes:

[0186] The access network device sends first information, where the first information is used to indicate a task configuration of an Internet of Things (IoT) task, wherein the IoT task is for execution when the terminal is at least in an RRC non-connected state, wherein the terminal is associated with a reader of backscatter transmission in the IoT task, and the RRC non-connected state includes: an RRC idle state and / or an RRC inactive state.

[0187] In a fifth aspect, an embodiment of the present disclosure provides a first information transmission device, wherein the first information transmission device includes:

[0188] The first transceiver module is configured to send first information, where the first information is used to indicate a task configuration of an Internet of Things (IoT) task, wherein the IoT task is executed when the terminal is at least in an RRC non-connected state, wherein the terminal is associated with a reader of backscatter transmission in the IoT task, and the RRC non-connected state includes: an RRC idle state and / or an RRC inactive state.

[0189] In a sixth aspect, an embodiment of the present disclosure provides a second information transmission device, wherein the second information transmission device includes:

[0190] The second transceiver module is configured to receive first information, where the first information is used to indicate a task configuration of an Internet of Things (IoT) task, wherein the IoT task is for execution when the terminal is at least in an RRC non-connected state, wherein the terminal is associated with a reader of backscatter transmission in the IoT task, and the RRC non-connected state includes: an RRC idle state and / or an RRC inactive state.

[0191] In a seventh aspect, an embodiment of the present disclosure provides a third information transmission device, wherein the third information transmission device includes:

[0192] The third transceiver module is configured to send a task request associated with the IoT task, wherein the task request is used to trigger the access network device to send first information, and the first information is used to indicate the task configuration of the Internet of Things IoT task, wherein the IoT task is for the terminal to be executed when at least in the RRC non-connected state, wherein the terminal is associated with the reader of the backscatter transmission in the IoT task, and the RRC non-connected state includes: RRC idle state and / or RRC inactive state.

[0193] In the eighth aspect, an embodiment of the present disclosure provides a communication system, wherein the information transmission system includes a terminal, an access network device and a core network device; the access network device is configured to implement the information transmission method described in the first aspect, the terminal is configured to implement the information transmission method described in the second aspect, and the core network device is configured to implement the information transmission method described in the third aspect.

[0194] In a ninth aspect, an embodiment of the present disclosure provides a communication device, wherein the communication device includes:

[0195] one or more processors;

[0196] The processor is used to call instructions to enable the communication device to execute the information transmission method described in the first aspect, the second aspect, or the third aspect.

[0197] In the tenth aspect, an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, which, when the instructions are executed on a communication device, enable the communication device to execute the information transmission method described in the first aspect, the second aspect, or the third aspect.

[0198] It is understandable that the first information transmission device, the second information transmission device, the communication device, the communication system, the storage medium, the program product, and the computer program are all used to perform the methods provided in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can be referred to the beneficial effects of the corresponding methods and will not be repeated here.

[0199] The present disclosure provides an information transmission method and apparatus, a communication device, a communication system, and a storage medium. In some embodiments, the terms "information transmission method" and "information processing method" are interchangeable; the terms "information transmission apparatus" and "information processing apparatus" are interchangeable; and the terms "communication system" and "information processing system" are interchangeable.

[0200] 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.

[0201] 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.

[0202] 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.

[0203] 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.

[0204] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0205] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0206] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "in one case A, in another case B," or "in one case A, in 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 same applies when there are more branches such as A, B, and C.

[0207] 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.

[0208] 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.

[0209] 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.

[0210] In some embodiments, terms such as "...", "determine...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0211] 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.

[0212] In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.

[0213] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0214] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station" "fixed station", "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)", "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)" and the like may be used interchangeably.

[0215] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc. can be used interchangeably.

[0216] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

[0217] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

[0218] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0219] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0220] 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.

[0221] FIG1a is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0222] 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 .

[0223] 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.

[0224] In some embodiments, the access network device 102 can be, for example, a node or device that accesses the terminal to the 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.

[0225] 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.

[0226] 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.

[0227] In some embodiments, the core network device 103 may be a single device, or may be multiple devices or a group of devices. 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).

[0228] 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.

[0229] 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.

[0230] 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).

[0231] Ambient-powered IoT is a technology that can address these unmet needs. An ambient-powered IoT device can be an IoT device 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.

[0232] Energy obtained from the environment can drive data transmission and wireless communication of sensing nodes. The current mainstream low-power IoT communication chips (such as BLE, LoRa, and NB-IoT) have a transmit and receive power consumption of tens or even hundreds of milliwatts, while the energy obtained by environmental energy harvesting is only at the microwatt level, which is unable to drive these types of nodes. Therefore, a new wireless communication technology is needed to reduce communication energy consumption to tens of microwatts or even below ten microwatts.

[0233] The methods that can be used include backscatter communications technology.

[0234] As shown in Figure 1b, backscatter communication can utilize the principle of RF signal backscattering to design extremely low-power modulation and transmission technology. The reader sends an excitation signal to the ambient IoT device. Since the excitation signal is partially reflected when it reaches the ambient IoT device, the ambient IoT device can adjust the matching between the receiving antenna and the impedance according to the information to be transmitted, enhancing the reflection of the incident excitation signal and modulating the acquired sensory data onto the reflected signal to complete the data transmission. This process is similar to that of a reflector. Compared with other communication technologies, backscatter communication does not require complex RF structures, reducing the use of devices such as power amplifiers, high-precision crystal oscillators, duplexers, and high-precision filters. It also does not require complex baseband processing. Therefore, it can simplify terminal design and significantly reduce terminal node costs.

[0235] Here, the reader may be a network node of a wireless communication network, such as a base station.

[0236] The network topology for backscatter communication can include one of the following:

[0237] Topology 1: As shown in Figure 1c, ambient IoT devices (or IoT devices for short) directly transmit uplink (UL) and downlink (DL) data to a base station.

[0238] Topology 2: As shown in Figure 1d, ambient IoT devices and base stations indirectly transmit downlink and uplink data. Intermediary nodes (also called auxiliary nodes) are present in the middle to forward data. These nodes can be relays, integrated access backhaul (IAB), terminals, user equipment (UE), and repeaters (RP).

[0239] Topology 3: As shown in Figure 1e, ambient IoT devices 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, terminals, and repeaters.

[0240] Topology 4: As shown in Figure 1f, ambient IoT devices and terminals directly receive and transmit data on the downlink and uplink. The terminals collect and forward data to the network.

[0241] As shown in Figure 1g, Ambient IoT devices can be divided into three types:

[0242] Device A: has no energy storage, cannot generate or amplify signals independently, and can only perform backscatter transmission.

[0243] Device B: Has energy storage, cannot generate signals independently, and can only perform backscatter transmission. The use of stored energy can include amplification of the backscattered signal.

[0244] Device C: has energy storage and can independently generate signals, that is, it has active radio frequency (RF) components for transmission.

[0245] In some embodiments, to rapidly and cost-effectively deploy a passive IoT, a method for collecting data based on a terminal as an anchor point is proposed. As a reader, the terminal does not necessarily need to collect and report data in real time. Data can be cached on the terminal side and then, after the terminal enters the RRC connected state, data reporting and routing are performed uniformly. The terminal does not need to maintain an RRC connection state to collect a single packet of data, thus saving power. Therefore, how to support RRC idle and / or RRC inactive terminals as readers is a problem that needs to be solved. For example, how to obtain relevant configurations and how to perform reporting are issues that need to be clarified.

[0246] FIG2a is an interactive diagram illustrating an information transmission method according to an embodiment of the present disclosure. As shown in FIG2a, the present disclosure embodiment relates to an information transmission method for a communication system 100, the method comprising:

[0247] Step S2101: The core network device sends a task request to the access network device.

[0248] In some embodiments, the access network device receives a task request sent by the core network device.

[0249] In some embodiments, the access network device may include: a base station.

[0250] In some embodiments, the task request is associated with an IoT task.

[0251] In some embodiments, the IoT task includes, but is not limited to, requesting reporting of ambient IoT data.

[0252] In some embodiments, when the core network device has a related triggering IOT data reporting requirement, it sends a task request to the access network device.

[0253] In some embodiments, the task request is used to trigger the access network device to send the first information to the terminal.

[0254] In some embodiments, the external IoT task function sends an IoT task request to the core network device, and the core network device sends a task request to the access network device based on the IoT task request.

[0255] In some embodiments, the external IoT task function may be an external IoT task server.

[0256] In some embodiments, the core network device sends a task request indicating at least one of the following: an IoT task, a terminal identifier associated with the IoT task, and whether the IoT task allows the terminal to execute in an RRC non-connected state.

[0257] Step S2102: The access network device sends first information.

[0258] In some embodiments, the terminal receives first information sent by the access network device.

[0259] In some embodiments, the first information is used to indicate a task configuration of the IoT task.

[0260] In some embodiments, the IoT task is executed when the terminal is at least in an RRC non-connected state.

[0261] In some embodiments, the IoT task is executed when the terminal is in an RRC non-connected state.

[0262] In some embodiments, the IoT data obtained by executing IoT tasks when the terminal is in the RRC non-connected state can be reported to the network side (access network device and / or core network device) after the terminal switches to the RRC connected state.

[0263] IoT task execution allows the terminal to be in an RRC disconnected state, reducing the power consumption associated with executing IoT tasks in an RRC connected state. This enables fast and low-cost deployment of passive IoT through the terminal.

[0264] In some embodiments, the terminal is associated with a reader of backscatter transmissions in an IoT task.

[0265] In some embodiments, a terminal is associated with a reader of backscatter transmission in an IoT task, comprising at least one of the following: the terminal is authorized to be a reader; the terminal expects or agrees to be a reader; the terminal supports becoming a reader; the terminal signs up to become a reader of backscatter communication.

[0266] In some embodiments, the access network device and / or the core network device may authorize the terminal to become a reader.

[0267] In some embodiments, the terminal may indicate to the access network or the core network in the RRC connected state that the terminal agrees or desires to become a reader.

[0268] In some embodiments, the terminal indicates to the access network or the core network that the terminal has the capability of becoming a reader, that is, supports becoming a reader.

[0269] In some embodiments, the terminal may sign up as a scatter communication reader during the registration process with the network.

[0270] In some embodiments, the terminal may sign up to become a scatter communication reader after a registration process to the network.

[0271] In some embodiments, the reader is configured to at least one of: send an excitation signal of the backscatter transmission; receive a backscatter signal of the backscatter transmission and determine data information carried by the backscatter signal; and transmit data information carried by the backscatter signal.

[0272] In some embodiments, the RRC non-connected state includes: an RRC idle state and / or an RRC inactive state.

[0273] In some embodiments, the IoT task may include at least one of the following:

[0274] The terminal sends an incentive signal to an ambient IoT device (referred to as an IoT device).

[0275] The terminal receives data information sent by the IoT device;

[0276] The terminal sends the data information obtained from the IoT device to the network side (access network equipment and / or core network equipment).

[0277] In some embodiments, environmental IoT data may be acquired by IoT devices.

[0278] In some embodiments, the IoT device includes at least one of the following: a tag device, a sensor device, etc.

[0279] In some embodiments, the terminal is configured to send an excitation signal to the IoT device and receive a backscattered signal sent by the IoT device based on the excitation signal.

[0280] In some embodiments, the IoT device is configured to send a backscatter signal based on an excitation signal sent by the terminal.

[0281] In some embodiments, the frequency band of the excitation signal sent by the terminal belongs to the frequency band of cellular mobile communications.

[0282] In some embodiments, the excitation signal may provide energy to the IoT device for backscattering.

[0283] In some embodiments, the access network device sends a system message carrying the first information.

[0284] In some embodiments, the system message is at least received by a terminal in an RRC non-connected state;

[0285] In some embodiments, the task configuration includes at least one of the following: a task identifier of the IoT task; an execution time configuration of the IoT task; an identifier of the IoT device associated with the IoT task; an indication of allowing the RRC non-connected terminal to execute the IoT task; an indication of the data transmission delay sensitivity of the IoT task; and a communication resource configuration of the communication cell associated with the IoT task.

[0286] In some embodiments, the execution time configuration of the IoT task includes at least one of the following: the IoT task start time and the IoT task end time.

[0287] In some embodiments, the data transmission delay sensitivity indication of the IoT task is used to indicate at least one of the following: whether the delay of data reporting of the IoT task is sensitive, and the delay level of data reporting of the IoT task.

[0288] In some embodiments, the IoT task-associated communication cell may be an area that can be covered by the terminal as a reader.

[0289] In some embodiments, the communication resource configuration of the IoT task-associated communication cell includes at least one of the following:

[0290] identification information of the communication cell;

[0291] Frequency information of the communication cell;

[0292] Spectrum range information of the communication cell;

[0293] Channel information of the communication cell;

[0294] Sub-channel configuration information of the communication cell.

[0295] In some embodiments, after becoming a reader, the terminal may broadcast the communication resource configuration of the IoT task-associated communication cell to the IoT device for communication between the IoT device and the terminal.

[0296] In some embodiments, the indication of allowing a terminal in an RRC non-connected state to execute an IoT task may use different values ​​to indicate whether the IoT task is allowed to be executed by a UE in a non-connected state.

[0297] In some embodiments, step S2101 is omitted, and the access network device autonomously sends the function indicated by the first information.

[0298] Step S2103: The access network device sends a paging message.

[0299] In some embodiments, the terminal receives paging information sent by the access network device.

[0300] In some embodiments, the access network device sends paging information via paging DCI.

[0301] In some embodiments, the access network device sends the paging information via a paging message.

[0302] In some embodiments, the paging information sent by the access network device carries the second information.

[0303] In some embodiments, the second information is at least used to instruct a terminal in an RRC non-connected state to receive the first information carried in a system message.

[0304] In some embodiments, the paging message information sent by the access network device carries indication information indicating the terminal identifier.

[0305] In some embodiments, the terminal identifier carried in the paging message information is used to indicate a terminal that needs to receive the second information.

[0306] In some embodiments, the terminal identifier carried in the paging message information includes: a terminal identifier associated with the IoT task.

[0307] In some embodiments, the terminal identifier associated with the IoT task is sent by the core network device to the access network device.

[0308] In some embodiments, after the terminal corresponding to the terminal identifier receives the paging information, it receives the first information according to the instruction of the second information.

[0309] In some embodiments, the paging message information sent by the access network device does not carry indication information indicating the terminal identifier.

[0310] In some embodiments, the paging message information does not carry indication information indicating the terminal identity, and the second information is at least used to instruct a terminal that meets a predetermined condition to receive the first information carried in the system message.

[0311] In some embodiments, the terminal meeting the predetermined conditions includes at least one of the following: the terminal is authorized to be a reader; the terminal expects or agrees to be a reader; the terminal supports becoming a reader; the terminal signs up to become a reader for scatter communication.

[0312] In some embodiments, the access network device and / or the core network device may authorize the terminal to become a reader.

[0313] In some embodiments, the terminal may indicate to the access network or the core network in the RRC connected state that the terminal agrees or desires to become a reader.

[0314] In some embodiments, the terminal indicates to the access network or the core network that the terminal has the capability of becoming a reader, that is, supports becoming a reader.

[0315] In some embodiments, the terminal may sign up as a scatter communication reader during the registration process with the network.

[0316] In some embodiments, the terminal may sign up to become a scatter communication reader after a registration process to the network.

[0317] In some embodiments, the reader is configured to at least one of: send an excitation signal of the backscatter transmission; receive a backscatter signal of the backscatter transmission and determine data information carried by the backscatter signal; and transmit data information carried by the backscatter signal.

[0318] In some embodiments, the second information is further used to indicate the status of the first information, wherein the status of the first information includes at least one of the following: first information release; first information update; first information termination.

[0319] In some embodiments, the second information may indicate the status of the first information through different values.

[0320] In some embodiments, the execution order of step S2102 and step S2103 is not specific.

[0321] In some embodiments, the access network device may first execute step S2102 and then execute step S2103.

[0322] In some embodiments, the access network device may first execute step S2103 and then execute step S2102.

[0323] Step S2104: The terminal obtains the second information.

[0324] In some embodiments, the terminal in the RRC non-connected state receives the second information via a system message.

[0325] In some embodiments, the terminal obtains the second information carried in the paging information by monitoring the paging information.

[0326] In some embodiments, the paging information carries a terminal identifier. The terminal determines that the paging information contains its own terminal identifier and determines that it needs to receive the first information in the system message according to an instruction of the second information.

[0327] In some embodiments, the paging information carries a terminal identifier, and the terminal may ignore the second information when determining that the paging information does not contain its own terminal identifier.

[0328] In some embodiments, the paging information does not carry the terminal identifier, and the terminal meets a predetermined condition and needs to receive the first information in the system message according to an instruction of the second information.

[0329] In some embodiments, the paging information does not carry the terminal identifier, the terminal does not meet the predetermined condition, and the second information can be ignored.

[0330] Step S2105: The terminal determines the task configuration.

[0331] In some embodiments, the terminal determines the task configuration based on an indication of the first information.

[0332] In some embodiments, based on the task configuration, the terminal can execute the IoT task configured by the task configuration in the RRC non-connected state.

[0333] In some embodiments, based on the task configuration, the terminal may also execute the IoT task configured by the task configuration in the RRC non-connected state.

[0334] In some embodiments, the terminal executes the IoT task configured by the task configuration, obtains data sent by the IoT device, and sends the data to the network side (access network device or core network device).

[0335] Step S2106: The terminal sends an authorization request.

[0336] In some embodiments, the authorization request indicates at least one of: the terminal desires or agrees to become the reader; and the terminal supports becoming a reader.

[0337] In some embodiments, authorization may be performed by the access network device.

[0338] In some embodiments, the access network device performs authorization, and the terminal sends an authorization request to the access network device.

[0339] In some embodiments, authorization may be performed by a core network device.

[0340] In some embodiments, the core network device performs authorization, and the terminal sends an authorization request to the access network device.

[0341] Step S2107a: The access network device sends authorization information.

[0342] In some embodiments, the access network device performs authorization, authorizing the terminal as a reader, and the access network device sends authorization information to the terminal to indicate the reader authorized by the terminal.

[0343] In some embodiments, the access network device performs authorization, and the unauthorized terminal is a reader. The access network device sends unauthorized information to the terminal, indicating that the terminal is not an authorized reader.

[0344] In some embodiments, the access network device configures the IoT task authorized by the terminal. The authorized IoT task is indicated by authorization information.

[0345] Step S2107b: The core network device sends authorization information.

[0346] In some embodiments, the core network device performs authorization and authorizes the terminal as a reader. The core network device sends authorization information to the terminal to indicate the reader authorized by the terminal.

[0347] In some embodiments, the core network device performs authorization and authorizes the terminal as a reader. The core network device sends unauthorized information to the terminal, indicating that the terminal is not authorized as a reader.

[0348] In some embodiments, the core network device configures the IoT task authorized by the terminal. The authorized IoT task is indicated by authorization information.

[0349] In some embodiments, step S2107a or step 2107b may be performed before or after any one of steps 2101 to 2105.

[0350] In some embodiments, step S2107a and step S2107b can be performed alternatively.

[0351] 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".

[0352] In some embodiments, the term "send" can be interchanged with terms such as "transmit", "report", and "transmit".

[0353] The information transmission method involved in the embodiments of the present disclosure may include at least one of steps S2101 to S2107 (S2107a or S2107b). For example, step S2101 can be implemented as an independent embodiment, step S2103 can be implemented as an independent embodiment, step S2104 can be implemented as an independent embodiment, step S2105 can be implemented as an independent embodiment, and step S2106 can be implemented as an independent embodiment. Step S2107 can also be implemented as an independent embodiment.

[0354] For example, step S2102 combined with steps S2103 to S2107 can be implemented as an independent embodiment. Steps S2101 to S2105 can be implemented as independent embodiments, but are not limited thereto.

[0355] In some embodiments, step S2101, step S2106, and step S2107 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0356] FIG2b is an interactive diagram illustrating an information transmission method according to an embodiment of the present disclosure. As shown in FIG2b , the present disclosure embodiment relates to an information transmission method for use in a communication system 100, the method comprising:

[0357] Step S2201: The core network device sends a task request to the access network device.

[0358] In some embodiments, the access network device receives a task request sent by the core network device.

[0359] In some embodiments, the access network device may include: a base station.

[0360] In some embodiments, the task request is associated with an IoT task.

[0361] In some embodiments, the IoT task includes, but is not limited to, requesting reporting of ambient IoT data.

[0362] In some embodiments, when a core network device has a need to report relevant triggered ambient IoT data, it sends a task request to an access network device.

[0363] In some embodiments, the task request is used to trigger the access network device to send the first information to the terminal.

[0364] In some embodiments, the external IoT task function sends an IoT task request to the core network device, and the core network device sends a task request to the access network device based on the IoT task request.

[0365] In some embodiments, the external IoT task function may be an external IoT task server.

[0366] In some embodiments, the core network device sends a task request indicating at least one of the following: an IoT task, a terminal identifier associated with the IoT task, and whether the IoT task allows the terminal to execute in an RRC non-connected state.

[0367] Step S2202: The access network device sends first information.

[0368] In some embodiments, the terminal receives first information sent by the access network device.

[0369] In some embodiments, the first information is used to indicate a task configuration of the IoT task.

[0370] In some embodiments, the IoT task is executed when the terminal is at least in an RRC non-connected state.

[0371] In some embodiments, the IoT task is executed when the terminal is in an RRC non-connected state.

[0372] In some embodiments, the data obtained by executing IoT tasks when the terminal is in the RRC non-connected state can be reported to the network side (access network device and / or core network device) after the terminal switches to the RRC connected state.

[0373] IoT tasks can be performed in a terminal in an RRC disconnected state, reducing the power consumption associated with performing IoT tasks in an RRC connected state. This allows for rapid and low-cost deployment of passive IoT devices. In some embodiments, the terminal is associated with a reader for backscatter transmissions in IoT tasks.

[0374] In some embodiments, a terminal is associated with a reader of backscatter transmission in an IoT task, comprising at least one of the following: the terminal is authorized to be a reader; the terminal expects or agrees to be a reader; the terminal supports becoming a reader; the terminal signs up to become a reader of backscatter communication.

[0375] In some embodiments, the access network device and / or the core network device may authorize the terminal to become a reader.

[0376] In some embodiments, the terminal may indicate to the access network or the core network in the RRC connected state that the terminal agrees or desires to become a reader.

[0377] In some embodiments, the terminal indicates to the access network or the core network that the terminal has the capability of becoming a reader, that is, supports becoming a reader.

[0378] In some embodiments, the terminal may sign up as a scatter communication reader during the registration process with the network.

[0379] In some embodiments, the terminal may sign up to become a scatter communication reader after a registration process to the network.

[0380] In some embodiments, the reader is configured to at least one of: send an excitation signal of the backscatter transmission; receive a backscatter signal of the backscatter transmission and determine data information carried by the backscatter signal; and transmit data information carried by the backscatter signal.

[0381] In some embodiments, the RRC non-connected state includes: an RRC idle state and / or an RRC inactive state.

[0382] In some embodiments, the IoT task may include at least one of the following:

[0383] The terminal sends an incentive signal to an ambient IoT device (referred to as an IoT device).

[0384] The terminal receives data information sent by the IoT device;

[0385] The terminal sends the data information obtained from the IoT device to the network side (access network equipment and / or core network equipment).

[0386] In some embodiments, environmental IoT data may be acquired by IoT devices.

[0387] In some embodiments, the IoT device includes at least one of the following: a tag device, a sensor device, etc.

[0388] In some embodiments, the terminal is configured to send an excitation signal to the IoT device and receive a backscattered signal sent by the IoT device based on the excitation signal.

[0389] In some embodiments, the IoT device is configured to send a backscatter signal based on an excitation signal sent by the terminal.

[0390] In some embodiments, the frequency band of the excitation signal sent by the terminal belongs to the frequency band of cellular mobile communications.

[0391] In some embodiments, the excitation signal may provide energy to the IoT device for backscattering.

[0392] In some embodiments, the access network device sends a dedicated signaling carrying the first information.

[0393] In some embodiments, the dedicated signaling is received by a terminal in an RRC connected state.

[0394] In some embodiments, the dedicated signaling includes: RRC signaling.

[0395] In some embodiments, the RRC signaling includes: an RRC release message.

[0396] In some embodiments, the access network device determines that the terminal is associated with an IoT task and sends first information to the terminal via dedicated signaling.

[0397] In some embodiments, the task configuration includes at least one of the following: a task identifier of the IoT task; an execution time configuration of the IoT task; an identifier of the IoT device associated with the IoT task; an indication of allowing the RRC non-connected terminal to execute the IoT task; an indication of the data transmission delay sensitivity of the IoT task; and a communication resource configuration of the communication cell associated with the IoT task.

[0398] In some embodiments, the execution time configuration of the IoT task includes at least one of the following: the IoT task start time and the IoT task end time.

[0399] In some embodiments, the data transmission delay sensitivity indication of the IoT task is used to indicate at least one of the following: whether the delay of data reporting of the IoT task is sensitive, and the delay level of data reporting of the IoT task.

[0400] In some embodiments, the IoT task-associated communication cell may be an area that can be covered by the terminal as a reader.

[0401] In some embodiments, the communication resource configuration of the IoT task-associated communication cell includes at least one of the following:

[0402] identification information of the communication cell;

[0403] Frequency information of the communication cell;

[0404] Spectrum range information of the communication cell;

[0405] Channel information of the communication cell;

[0406] Sub-channel configuration information of the communication cell.

[0407] In some embodiments, after becoming a reader, the terminal may broadcast the communication resource configuration of the IoT task-associated communication cell to the IoT device for communication between the IoT device and the terminal.

[0408] In some embodiments, the indication of allowing the RRC non-connected terminal to execute the IoT task may use different values ​​to indicate whether the IoT task is allowed to be executed by the non-connected UE.

[0409] In some embodiments, step S2101 is omitted, and the access network device autonomously sends the function indicated by the first information.

[0410] Step S2203: The terminal determines the task configuration.

[0411] In some embodiments, the terminal determines the task configuration based on an indication of the first information.

[0412] In some embodiments, based on the task configuration, the terminal can execute the IoT task configured by the task configuration in the RRC non-connected state.

[0413] In some embodiments, based on the task configuration, the terminal may also execute the IoT task configured by the task configuration in the RRC non-connected state.

[0414] In some embodiments, the terminal executes the IoT task configured by the task configuration, obtains data sent by the IoT device, and sends the data to the network side (access network device or core network device).

[0415] Step S2204: The terminal sends an authorization request.

[0416] In some embodiments, the authorization request indicates at least one of: the terminal desires or agrees to become the reader; and the terminal supports becoming a reader.

[0417] In some embodiments, authorization may be performed by the access network device.

[0418] In some embodiments, the access network device performs authorization, and the terminal sends an authorization request to the access network device.

[0419] In some embodiments, authorization may be performed by a core network device.

[0420] In some embodiments, the core network device performs authorization, and the terminal sends an authorization request to the access network device.

[0421] Step S2205a: The access network device sends authorization information.

[0422] In some embodiments, the access network device performs authorization, authorizing the terminal as a reader, and the access network device sends authorization information to the terminal to indicate the reader authorized by the terminal.

[0423] In some embodiments, the access network device performs authorization, and the unauthorized terminal is a reader. The access network device sends unauthorized information to the terminal, indicating that the terminal is not an authorized reader.

[0424] In some embodiments, the access network device configures the IoT task authorized by the terminal. The authorized IoT task is indicated by authorization information.

[0425] Step S2205b: The core network device sends authorization information.

[0426] In some embodiments, the core network device performs authorization and authorizes the terminal as a reader. The core network device sends authorization information to the terminal to indicate the reader authorized by the terminal.

[0427] In some embodiments, the core network device performs authorization and authorizes the terminal as a reader. The core network device sends unauthorized information to the terminal, indicating that the terminal is not authorized as a reader.

[0428] In some embodiments, the core network device configures the IoT task authorized by the terminal. The authorized IoT task is indicated by authorization information.

[0429] In some embodiments, step S2105a or step 2105b may be performed before or after any one of steps 2201 to 2203.

[0430] In some embodiments, step S2105a and step S2105b can be performed alternatively.

[0431] 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".

[0432] In some embodiments, the term "send" can be interchanged with terms such as "transmit", "report", and "transmit".

[0433] The information transmission method involved in the embodiments of the present disclosure may include at least one of steps S2201 to S2205 (S2205a or S2205b). For example, step S2201 can be implemented as an independent embodiment, step S2203 can be implemented as an independent embodiment, step S2204 can be implemented as an independent embodiment, and step S2205 can be implemented as an independent embodiment.

[0434] For example, steps S2202 to S2205 can be implemented as an independent embodiment in combination. Steps S2201 to S2205 can be implemented as an independent embodiment, but are not limited thereto.

[0435] In some embodiments, step S2201, step S2204, and step S2205 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0436] FIG3a is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG3a, the present disclosure embodiment relates to an information transmission method, which is executed by terminal 101 and includes:

[0437] Step S3101: Obtain paging information.

[0438] In some embodiments, the optional implementation of step S3101 can refer to the optional implementation of step S2103 and step S2104 in Figure 2a, and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0439] In some embodiments, the terminal receives paging information sent by the access network device, but is not limited thereto, and may also receive first information sent by other entities.

[0440] In some embodiments, the terminal obtains paging information specified by the protocol.

[0441] In some embodiments, the terminal obtains paging information from upper layer(s).

[0442] In some embodiments, the terminal performs processing to obtain the first information.

[0443] In some embodiments, step S3101 is omitted, and the terminal autonomously implements the function indicated by the paging information, or the above function is default or by default.

[0444] Step S3102: Obtain first information.

[0445] In some embodiments, the optional implementation of step S3102 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.

[0446] In some embodiments, the terminal receives the first information sent by the access network device, but is not limited thereto, and may also receive the first information sent by other entities.

[0447] In some embodiments, the terminal obtains first information specified by the protocol.

[0448] In some embodiments, the terminal obtains the first information from an upper layer(s).

[0449] In some embodiments, the terminal performs processing to obtain the first information.

[0450] In some embodiments, step S3102 is omitted, the terminal autonomously implements the function indicated by the first information, or the above function is default or by default.

[0451] In some embodiments, the execution order of step S3101 and step S3102 is not specific.

[0452] Step S3103: Determine task configuration.

[0453] In some embodiments, the optional implementation of step S3103 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.

[0454] Step S3104: Send an authorization request.

[0455] In some embodiments, the optional implementation of step S3104 can refer to the optional implementation of step S2106 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0456] Step S3105: Obtain authorization information.

[0457] In some embodiments, the optional implementation of step S3105 can refer to the optional implementation of step S2107a or S2107b of Figure 2a, and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0458] In some embodiments, the terminal receives authorization information sent by an access network device or a core network device, but is not limited thereto, and may also receive fourth information sent by other entities.

[0459] In some embodiments, the terminal obtains fourth information specified by the protocol.

[0460] In some embodiments, the terminal obtains authorization information from upper layer(s).

[0461] In some embodiments, the terminal performs processing to obtain the fourth information.

[0462] In some embodiments, step S3104 is omitted, and the terminal autonomously implements the function indicated by the authorization information, or the above function is default or by default.

[0463] The information transmission method involved in the embodiments of the present disclosure may include at least one of steps S3101 to S3104. For example, step S3101 can be implemented as an independent embodiment, step S3102 can be implemented as an independent embodiment, step S3103 can be implemented as an independent embodiment, and step S3104 can be implemented as an independent embodiment. For example, step S3101 combined with steps S3102 and S3103 can be implemented as an independent embodiment, and steps S3103 to S3104 can be implemented as independent embodiments, but are not limited thereto.

[0464] In some embodiments, step S3104 and step S3105 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0465] FIG3b is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG3b, the present disclosure embodiment relates to an information transmission method, which is executed by terminal 101 and includes:

[0466] Step S3201: Obtain first information.

[0467] In some embodiments, the optional implementation of step S3201 can refer to the optional implementation of step S2202 in Figure 2b and other related parts of the embodiment involved in Figure 2b, which will not be repeated here.

[0468] In some embodiments, the terminal receives the first information sent by the access network device, but is not limited thereto, and may also receive the first information sent by other entities.

[0469] In some embodiments, the terminal obtains first information specified by the protocol.

[0470] In some embodiments, the terminal obtains the first information from an upper layer(s).

[0471] In some embodiments, the terminal performs processing to obtain the first information.

[0472] In some embodiments, step S3201 is omitted, the terminal autonomously implements the function indicated by the first information, or the above function is default or by default.

[0473] Step S3202: Determine task configuration.

[0474] In some embodiments, the optional implementation of step S3202 can refer to the optional implementation of step S2203 in Figure 2b and other related parts of the embodiment involved in Figure 2b, which will not be repeated here.

[0475] Step S3203: Send an authorization request.

[0476] In some embodiments, the optional implementation of step S3203 can refer to the optional implementation of step S2204 in Figure 2b and other related parts of the embodiment involved in Figure 2b, which will not be repeated here.

[0477] Step S3204: Obtain authorization information.

[0478] In some embodiments, the optional implementation of step S3204 can refer to the optional implementation of step S2205a or S2205b in Figure 2b, and other related parts of the embodiment involved in Figure 2b, which will not be repeated here.

[0479] In some embodiments, the terminal obtains authorization information specified by the protocol.

[0480] In some embodiments, the terminal obtains authorization information from upper layer(s).

[0481] In some embodiments, the terminal performs processing to obtain authorization information.

[0482] In some embodiments, step S3204 is omitted, and the terminal autonomously implements the function indicated by the authorization information, or the above function is default or by default.

[0483] The information transmission method involved in the embodiments of the present disclosure may include at least one of steps S3201 to S3204. For example, step S3201 can be implemented as an independent embodiment, step S3203 can be implemented as an independent embodiment, and step S3204 can be implemented as an independent embodiment. For example, step S3201 combined with step S3202 can be implemented as an independent embodiment, and steps S3203 to S3204 can be implemented as independent embodiments, but the present invention is not limited thereto.

[0484] In some embodiments, step S3203 and step S3204 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0485] FIG4a is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG4a, the present disclosure embodiment relates to an information transmission method, which is executed by the access network device 102. The method includes:

[0486] Step S4101: Get the task request.

[0487] 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.

[0488] In some embodiments, the access network device receives the first information sent by the core network device, but is not limited thereto and may also receive the first information sent by other entities.

[0489] In some embodiments, the access network device performs processing to obtain the first information.

[0490] In some embodiments, step 4101 is omitted, and the access network device autonomously implements the function indicated by the first information, or the above function is default or by default.

[0491] Step S4102: Send the first message.

[0492] 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.

[0493] Step S4103: Send paging information.

[0494] In some embodiments, the optional implementation of step S4103 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.

[0495] In some embodiments, the execution order of step S4102 and step S4103 is not specific.

[0496] Step S4104: Obtain authorization request.

[0497] In some embodiments, the optional implementation of step S4104 can refer to the optional implementation of step S2106 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0498] In some embodiments, the access network device receives an authorization request sent by a terminal, but is not limited thereto and may also receive first information sent by other entities.

[0499] Step S4105: Send authorization information.

[0500] In some embodiments, the optional implementation of step S4105 can refer to the optional implementation of step S2107a in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0501] The information transmission method involved in the embodiments of the present disclosure may include at least one of steps S4101 to S4105. For example, step S4101 can be implemented as an independent embodiment, step S4102 can be implemented as an independent embodiment, step S4103 can be implemented as an independent embodiment, step S4104 can be implemented as an independent embodiment, and step S4105 can be implemented as an independent embodiment. For example, step S4101 combined with steps S4102 and S4103 can be implemented as an independent embodiment, and steps S4104 to S4105 can be implemented as independent embodiments, but the present invention is not limited thereto.

[0502] In some embodiments, step S4101, step S4104, and step S4105 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0503] FIG4b is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG4b, the present disclosure embodiment relates to an information transmission method, which is executed by the access network device 102. The method includes:

[0504] Step S4201: Get the task request.

[0505] In some embodiments, the optional implementation of step S4201 can refer to the optional implementation of step S2201 in Figure 2b and other related parts of the embodiment involved in Figure 2b, which will not be repeated here.

[0506] In some embodiments, the access network device receives the first information sent by the core network device, but is not limited thereto and may also receive the first information sent by other entities.

[0507] In some embodiments, the access network device performs processing to obtain the first information.

[0508] In some embodiments, step S4201 is omitted, and the access network device autonomously implements the function indicated by the first information, or the above function is default or by default.

[0509] Step S4202: Send the first message.

[0510] In some embodiments, the optional implementation of step S4202 can refer to the optional implementation of step S2202 in Figure 2b and other related parts of the embodiment involved in Figure 2b, which will not be repeated here.

[0511] Step S4203: Obtain authorization request.

[0512] In some embodiments, the optional implementation of step S4204 can refer to the optional implementation of step S2204 in Figure 2b and other related parts of the embodiment involved in Figure 2b, which will not be repeated here.

[0513] In some embodiments, the access network device receives an authorization request sent by a terminal, but is not limited thereto and may also receive first information sent by other entities.

[0514] Step S4204: Send authorization information.

[0515] In some embodiments, the optional implementation of step S4205 can refer to the optional implementation of step S2205a in Figure 2b and other related parts of the embodiment involved in Figure 2b, which will not be repeated here.

[0516] The information transmission method involved in the embodiments of the present disclosure may include at least one of steps S4201 to S4204. For example, step S4201 can be implemented as an independent embodiment, step S4202 can be implemented as an independent embodiment, step S4203 can be implemented as an independent embodiment, and step S4204 can be implemented as an independent embodiment. For example, step S4201 combined with step S4202 can be implemented as an independent embodiment, and steps S420103 to S420104 can be implemented as independent embodiments, but the present invention is not limited thereto.

[0517] In some embodiments, step S4201, step S4203, and step S4205 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0518] FIG4c is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG4c, the present disclosure embodiment relates to an information transmission method, which is executed by the core network device 103. The method includes:

[0519] Step S4301: Send a task request.

[0520] In some embodiments, the optional implementation of step S4301 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.

[0521] Step S4302: Obtain authorization request.

[0522] In some embodiments, the optional implementation of step S4302 can refer to the optional implementation of step S2106 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0523] In some embodiments, the core network device receives the authorization request sent by the terminal, but is not limited thereto and may also receive the first information sent by other entities.

[0524] In some embodiments, the core network device receives the authorization request of the terminal sent by the access network device, but is not limited thereto and may also receive the first information sent by other entities.

[0525] Step S4303: Send authorization information.

[0526] In some embodiments, the optional implementation of step S4303 can refer to the optional implementation of step S2107b in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0527] The information transmission method involved in the embodiments of the present disclosure may include at least one of steps S4301 to S4303. For example, step S4301 can be implemented as an independent embodiment, step S4302 can be implemented as an independent embodiment, and step S4303 can be implemented as an independent embodiment. For example, steps S4302 to S4303 can be implemented as independent embodiments, but are not limited thereto.

[0528] FIG4 d is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG4 d , the embodiment of the present disclosure relates to an information transmission method, which is executed by the core network 103 and includes:

[0529] Step S4401: Send a task request.

[0530] In some embodiments, the optional implementation of step S4401 can refer to the optional implementation of step S2201 in Figure 2b and other related parts of the embodiment involved in Figure 2b, which will not be repeated here.

[0531] Step S4402: Obtain authorization request.

[0532] In some embodiments, the optional implementation of step S4402 can refer to the optional implementation of step S2204 in Figure 2b and other related parts of the embodiment involved in Figure 2b, which will not be repeated here.

[0533] In some embodiments, the core network device receives the authorization request sent by the terminal, but is not limited thereto and may also receive the first information sent by other entities.

[0534] In some embodiments, the core network device receives the authorization request of the terminal sent by the access network device, but is not limited thereto and may also receive the first information sent by other entities.

[0535] Step S4403: Send authorization information.

[0536] In some embodiments, the optional implementation of step S4403 can refer to the optional implementation of step S2205b in Figure 2b and other related parts of the embodiment involved in Figure 2b, which will not be repeated here.

[0537] The information transmission method involved in the embodiments of the present disclosure may include at least one of steps S4401 to S4403. For example, step S4401 can be implemented as an independent embodiment, step S4402 can be implemented as an independent embodiment, and step S4403 can be implemented as an independent embodiment. For example, steps S4402 to S4403 can be implemented as independent embodiments, but are not limited thereto.

[0538] Figure 5a is an interactive diagram of an information transmission method according to an embodiment of the present disclosure. As shown in Figure 5a, the present disclosure embodiment relates to an information transmission method, which is used in a communication system 100. The method includes one of the following steps:

[0539] Step S5101: The access network device sends first information, where the first information is used to indicate the task configuration of the Internet of Things (IoT) task, wherein the IoT task is for execution when the terminal is at least in an RRC non-connected state, wherein the terminal is associated with a reader of backscatter transmission in the IoT task, and the RRC non-connected state includes: an RRC idle state and / or an RRC inactive state.

[0540] For the optional implementation of step S5101, please refer to step S2102 of Figure 2a, step S2202 of Figure 2b, step S3102 of Figure 3a, step S3202 of Figure 3b, step S4102 of Figure 4a, step S4202 of Figure 4b, and other related parts in the embodiments involved in Figures 2b, 2b, 3a, 3b, 4a, and 4b, which will not be repeated here.

[0541] In some embodiments, the above method may include the methods of the above-mentioned communication system side, terminal side, access network equipment side, core network equipment side, etc., which will not be repeated here.

[0542] The following provides a specific example in combination with any of the above embodiments:

[0543] Relevant configuration information (task configuration) of an RRC idle terminal / RRC inactive terminal as a reader is obtained:

[0544] Option 1.1: Obtain relevant configurations through system broadcast information.

[0545] When the network side triggers the reporting of ambient IoT data, the base station broadcasts the task information of the ambient IoT through a system broadcast message, and notifies the terminal to obtain the system broadcast information through a paging message. The above two actions are not prioritized. The system broadcast change indication can be reused in the paging message, or new indication information can be added to specifically indicate the release, update, and / or termination of the ambient IoT task information. The newly added indication information is stored in the paging DCI.

[0546] For UEs that support being a reader, and / or terminals that have signed a contract to agree to be a reader, after receiving the instruction information in the paging message, they obtain the task information broadcast by the system and start executing the task. Or,

[0547] For UEs that support acting as readers, and / or UEs that have agreed to act as readers through RRC signaling or NAS signaling in the previous RRC connection state, after receiving the indication information in the paging message, they obtain the task information in the system broadcast and start executing the task.

[0548] Option 1.2: Obtain relevant configurations through system broadcast information.

[0549] When the network triggers a need to report ambient IoT data, the gNB broadcasts the ambient IoT task information via a system broadcast message and simultaneously notifies selected terminals via a paging message to obtain the system broadcast information. These two actions are executed in no particular order. Before sending the paging message, the gNB obtains the target terminal ID information from the CN in the paging message. Subsequent paging triggers select the target terminal as the reader. The paging message carries the target terminal ID information. The terminal ID information is also associated with an indication, indicating the purpose of the paging message to trigger the terminal to obtain ambient IoT task information.

[0550] For UEs that support being readers, and / or terminals that have signed a contract to be readers, after receiving their own ID in the paging message and associating it with the indication information, they obtain the task information broadcast by the system and start executing the task. Or,

[0551] For UEs that support acting as readers, and / or UEs that have agreed to act as readers through RRC signaling or NAS signaling in the previous RRC connection state, after receiving their own ID in the paging message and associating one of the indication information, they obtain the task information in the system broadcast and start executing the task.

[0552] Option 2: Obtain relevant configurations through dedicated signaling.

[0553] In the RRC connected state, the UE reports its ability to act as a reader and / or its subscription agreement to act as a reader to the base station, or the base station receives information from the CN that the terminal has signed a subscription agreement to act as a reader. The base station configures the configuration information about the ambient IoT task in RRC dedicated signaling, such as an RRC Release message.

[0554] For all solutions, the configuration information of the ambient IoT task may include, but is not limited to:

[0555] The task id number of the ambient IOT task

[0556] Ambient IoT task start time and / or end time;

[0557] The target ambient IOT task's ambient IOT identification information;

[0558] Indicates that ambient IoT tasks can be executed in RRC idle state or RRC inactive state.

[0559] Data reporting corresponding to ambient IOT tasks, delay-insensitive indication information, etc.

[0560] The ambient IoT task sends corresponding cell information, such as cell ID information, frequency information or spectrum range information, channel information, sub-channel configuration information, etc.

[0561] The present invention proposes a configuration method of using an RRC idle terminal / RRC inactive terminal as a UE reader, thereby realizing rapid and low-cost deployment of a passive Internet of Things and achieving the purpose of UE power saving.

[0562] The embodiments of the present disclosure also 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 or a core network device) in any of the above methods.

[0563] It should be understood that the division of the various units or modules in the above devices 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 devices, 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.

[0564] In the embodiments of the present disclosure, a 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 a 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 to implement 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.

[0565] Figure 6a is a structural diagram of the first information transmission device provided by an embodiment of the present disclosure. As shown in Figure 6a, the first information transmission device 6100 includes: a first transceiver module 6101; the first receiving module 6101 is configured to send first information, and the first information is used to indicate the task configuration of the Internet of Things IoT task, wherein the IoT task is for the terminal to be executed when at least it is in the RRC non-connected state, wherein the terminal is associated with the reader of the backscatter transmission in the IoT task, and the RRC non-connected state includes: RRC idle state and / or RRC inactive state. Optionally, the first receiving module 7101 is used to execute the steps related to information transmission and reception performed by the access network device in any of the above information transmission methods, which will not be repeated here. .

[0566] Figure 6b is a structural diagram of the second information transmission device provided by an embodiment of the present disclosure. As shown in Figure 6b, the second information transmission device 6200 includes: a second receiving module 6201, configured to receive first information, wherein the first information is used to indicate the task configuration of the Internet of Things IoT task, wherein the IoT task is for the terminal to execute when it is at least in an RRC non-connected state, wherein the terminal is associated with a reader of backscatter transmission in the IoT task, and the RRC non-connected state includes: an RRC idle state and / or an RRC inactive state. Optionally, the second receiving module 6201 is used to execute the steps related to information sending and receiving executed by the terminal in any of the above information transmission methods, which will not be repeated here. Optionally, the second information transmission device 6200 also includes a determination module, and the above-mentioned second determination module is used to execute the steps related to determination executed by the terminal in any of the above methods, which will not be repeated here.

[0567] Figure 6c is a structural diagram of the third information transmission device provided by an embodiment of the present disclosure. As shown in Figure 6c, the third information transmission device 6300 includes: a third transceiver module 6301, configured to send a task request associated with an IoT task, wherein the task request is used to trigger the access network device to send a first message, and the first information is used to indicate the task configuration of the Internet of Things IoT task, wherein the IoT task is for the terminal to execute when at least it is in an RRC non-connected state, wherein the terminal is associated with a reader of backscatter transmission in the IoT task, and the RRC non-connected state includes: an RRC idle state and / or an RRC inactive state. The third transceiver module 6301 is used to execute the steps related to information transmission and reception performed by the core network device in any of the above information transmission methods, which will not be repeated here.

[0568] Figure 7a is a schematic diagram of the structure of a communication device 8100 provided in an embodiment of the present disclosure. Communication device 8100 can be a network device (e.g., an access network device or a core network device), a terminal (e.g., a user device), a chip, a chip system, or a processor that supports a network device in implementing any of the above methods, or a chip, a chip system, or a processor that supports a terminal in implementing any of the above information transmission methods. Communication device 8100 can be used to implement the information transmission method described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0569] 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, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. The processor 8101 is used to call instructions to enable the communication device 8100 to execute any of the above information transmission methods.

[0570] 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.

[0571] 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 communication steps such as sending and receiving in the above method are performed by the transceiver 8103, and the other steps are performed by the processor 8101.

[0572] In some embodiments, a transceiver may include a receiver and a transmitter, which 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.

[0573] Optionally, the communication device 8100 further includes one or more interface circuits 8104, which are connected to the memory 8102. The interface circuits 8104 can be used to receive signals from the memory 8102 or other devices, and can be used to send signals to the memory 8102 or other devices. For example, the interface circuits 8104 can read instructions stored in the memory 8102 and send the instructions to the processor 8101.

[0574] 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. 8a. 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.

[0575] FIG7 b is a schematic diagram of the structure of a chip 8200 provided 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.

[0576] The chip 8200 includes one or more processors 8201 , and the processor 8201 is used to call instructions so that the chip 8200 executes any of the above information transmission methods.

[0577] In some embodiments, chip 8200 further includes one or more interface circuits 8202, which are connected to memory 8203. Interface circuit 8202 can be used to receive signals from memory 8203 or other devices, and can be used to send signals to memory 8203 or other devices. For example, interface circuit 8202 can read instructions stored in memory 8203 and send the instructions to processor 8201. Optionally, the terms interface circuit, interface, transceiver pin, and transceiver are interchangeable.

[0578] 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.

[0579] The present disclosure also provides 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 may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but may also be a transient storage medium.

[0580] The present disclosure further provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above information transmission methods. Optionally, the program product is a computer program product.

[0581] The present disclosure also provides a computer program, which, when executed on a computer, enables the computer to execute any one of the above information transmission methods.

[0582] Other embodiments of the present invention will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention that follow from the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the invention being indicated by the following claims.

[0583] It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A method for transmitting information, wherein: The method is performed by an access network device, and the method includes: Sending first information, wherein the first information is used to indicate a task configuration of an Internet of Things (IoT) task, wherein the IoT task is for execution when the terminal is at least in an RRC non-connected state, wherein the terminal is associated with a reader of backscatter transmission in the IoT task, and the RRC non-connected state includes: an RRC idle state and / or an RRC inactive state.

2. The method according to claim 1, wherein: The sending of the first information includes at least one of the following: Sending a system message carrying the first information, wherein the system message is at least received by the terminal in the RRC unconnected state; Send dedicated signaling carrying the first information, wherein the dedicated signaling is received by the terminal in the RRC connected state.

3. The method according to claim 2, wherein: The method further comprises: Sending a paging message, wherein the paging message carries second information, and the second information is at least used to instruct the terminal in the RRC non-connected state to receive the first information carried by the system message.

4. The method according to claim 3, wherein: The paging information carries indication information indicating a terminal identifier, and the second information is at least used to instruct the terminal corresponding to the terminal identifier to receive the first information carried by the system message; The paging information does not carry indication information indicating the terminal identity, and the second information is at least used to instruct all the terminals that meet a predetermined condition to receive the first information carried in the system message.

5. The method according to claim 3, wherein: The terminal identifier associated with the IoT task is obtained from a core network device.

6. The method according to any one of claims 3 to 5, wherein: The second information is further used to indicate a state of the first information, wherein the state of the first information includes at least one of the following: the first information is released; The first information is updated; The first message terminates.

7. The method according to any one of claims 3 to 6, wherein: The paging information includes at least one of the following: paging downlink control information DCI; a paging message.

8. The method according to any one of claims 1 to 7, wherein: The sending of the first information includes: Receive a task request associated with the IoT task sent by a core network device, and send the first information.

9. The method according to any one of claims 1 to 8, wherein the task configuration comprises: The task identifier of the IoT task; Execution time configuration of the IoT task; The identifier of the IoT device associated with the IoT task; An indication of allowing the terminal in the RRC non-connected state to execute the IoT task; An indication of the data transmission delay sensitivity of the IoT task; The IoT task is associated with the communication resource configuration of the communication cell.

10. The method according to any one of claims 1 to 9, wherein: The terminal is associated with a reader of backscatter transmission in an IoT task and / or the terminal satisfies a condition, including at least one of the following: The terminal is authorized to be the reader; The terminal desires or agrees to become the reader; The terminal supports being the reader; The terminal signs up to be the reader.

11. The method according to any one of claims 1 to 10, further comprising: Receive an authorization request reported by the terminal, where the authorization request indicates at least one of the following: The terminal desires or agrees to become the reader; The terminal supports being the reader.

12. The method according to claim 11, further comprising: Authorization information is sent to the terminal, where the authorization information indicates that the terminal is authorized to be the reader.

13. A method for transmitting information, wherein: The method is executed by a terminal, and includes: Receive first information, wherein the first information is used to indicate a task configuration of an Internet of Things (IoT) task, wherein the IoT task is for the terminal to be executed when at least it is in an RRC non-connected state, wherein the terminal is associated with a reader of backscatter transmission in the IoT task, and the RRC non-connected state includes: an RRC idle state and / or an RRC inactive state.

14. The method according to claim 13, wherein: The receiving of the first information includes at least one of the following: receiving a system message carrying the first information, wherein the system message is at least received by the terminal in an RRC unconnected state; Receive dedicated signaling carrying the first information, wherein the dedicated signaling is received by the terminal in an RRC connected state.

15. The method according to claim 14, wherein: The method further comprises: Receive paging information, wherein the paging information carries second information, and the second information is at least used to instruct the terminal in the RRC non-connected state to receive the first information carried by the system message.

16. The method according to claim 15, wherein: The paging information carries indication information indicating a terminal identifier, and the second information is at least used to instruct the terminal corresponding to the terminal identifier to receive the first information carried by the system message; The paging information does not carry indication information indicating the terminal identity, and the second information is at least used to instruct all the terminals that meet a predetermined condition to receive the first information carried in the system message.

17. The method according to claim 15, wherein: The terminal identifier is obtained by the access network device from the core network device, and the terminal identifier is associated with the IoT task.

18. The method according to any one of claims 15 to 17, wherein: The second information is further used to indicate a state of the first information, wherein the state of the first information includes at least one of the following: the first information is released; The first information is updated; The first message terminates.

19. The method according to any one of claims 15 to 18, wherein: The paging information includes at least one of the following: paging downlink control information DCI; a paging message.

20. The method according to any one of claims 13 to 19, wherein the task configuration comprises: The task identifier of the IoT task; Execution time configuration of the IoT task; The identifier of the IoT device associated with the IoT task; An indication of allowing the terminal in the RRC non-connected state to execute the IoT task; An indication of the data transmission delay sensitivity of the IoT task; The IoT task is associated with the communication resource configuration of the communication cell.

21. The method according to any one of claims 13 to 20, wherein: The terminal is associated with a reader of backscatter transmission in an IoT task and / or the terminal satisfies a condition, including at least one of the following: The terminal is authorized to be the reader; The terminal desires or agrees to become the reader; The terminal supports being the reader; The terminal signs up to be the reader.

22. The method according to any one of claims 13 to 21, further comprising: Send an authorization request to an access network device or a core network device, where the authorization request indicates at least one of the following: The terminal desires or agrees to become the reader; The terminal supports being the reader.

23. The method according to claim 22, further comprising: Receive authorization information sent by the access network device or the core network device, where the authorization information indicates that the terminal is authorized to become the reader.

24. A method for transmitting information, wherein: The method is performed by a core network device, and the method includes: Send a task request associated with an IoT task, wherein the task request is used to trigger an access network device to send first information, and the first information is used to indicate a task configuration of an Internet of Things IoT task, wherein the IoT task is for execution when the terminal is at least in an RRC non-connected state, wherein the terminal is associated with a reader of backscatter transmission in the IoT task, and the RRC non-connected state includes: an RRC idle state and / or an RRC inactive state.

25. The method according to claim 24, wherein: The first information is carried in at least one of the following: System message, wherein the system message is at least received by the terminal in the RRC non-connected state; Dedicated signaling, wherein the dedicated signaling is received by the terminal in the RRC connected state.

26. The method according to claim 25, wherein: The task request is used to trigger the access network device to send a paging message, wherein the paging message carries the second information, The second information is at least used to instruct the terminal in the RRC non-connected state to receive the first information carried by the system message.

27. The method according to claim 26, wherein: The paging information carries indication information indicating a terminal identifier, and the second information is at least used to instruct the terminal corresponding to the terminal identifier to receive the first information carried by the system message; The paging information does not carry indication information indicating the terminal identity, and the second information is at least used to instruct all the terminals that meet a predetermined condition to receive the first information carried in the system message.

28. The method according to claim 26, wherein: The terminal identifier is obtained by the access network device from the core network device, and the terminal identifier is associated with the IoT task.

29. The method according to any one of claims 26 to 28, wherein: The second information is further used to indicate a state of the first information, wherein the state of the first information includes at least one of the following: the first information is released; The first information is updated; The first message terminates.

30. The method according to any one of claims 26 to 29, wherein: The paging information includes at least one of the following: paging downlink control information DCI; a paging message.

31. The method according to any one of claims 24 to 30, wherein the task configuration comprises: The task identifier of the IoT task; Execution time configuration of the IoT task; The identifier of the IoT device associated with the IoT task; An indication of allowing the terminal in the RRC non-connected state to execute the IoT task; An indication of the data transmission delay sensitivity of the IoT task; The IoT task is associated with the communication resource configuration of the communication cell.

32. The method according to any one of claims 24 to 31, wherein: The terminal is associated with a reader of backscatter transmission in an IoT task and / or the terminal satisfies a predetermined condition, including at least one of the following: The terminal is authorized to be the reader; The terminal desires or agrees to become the reader; The terminal supports being the reader; The terminal signs up to be the reader.

33. The method according to any one of claims 24 to 32, further comprising: Receive an authorization request reported by the terminal, where the authorization request indicates at least one of the following: The terminal desires or agrees to become the reader; The terminal supports being the reader.

34. The method according to any one of claims 24 to 33, further comprising: Authorization information is sent to the terminal, where the authorization information indicates that the terminal is authorized to be the reader.

35. A method for transmitting information, wherein: Executed by a communication system, the method comprises: The access network device sends first information, wherein the first information is used to indicate the task configuration of an Internet of Things (IoT) task, wherein the IoT task is for execution when the terminal is at least in an RRC non-connected state, wherein the terminal is associated with a reader of backscatter transmission in the IoT task, and the RRC non-connected state includes: an RRC idle state and / or an RRC inactive state.

36. A first information transmission device, wherein: The first information transmission device comprises: The first transceiver module is configured to send first information, wherein the first information is used to indicate the task configuration of an Internet of Things (IoT) task, wherein the IoT task is executed when the terminal is at least in an RRC non-connected state, wherein the terminal is associated with a reader of backscatter transmission in the IoT task, and the RRC non-connected state includes: an RRC idle state and / or an RRC inactive state.

37. A second information transmission device, wherein: The second information transmission device comprises: The second transceiver module is configured to receive first information, wherein the first information is used to indicate the task configuration of an Internet of Things (IoT) task, wherein the IoT task is executed when the terminal is at least in an RRC non-connected state, wherein the terminal is associated with a reader of backscatter transmission in the IoT task, and the RRC non-connected state includes: an RRC idle state and / or an RRC inactive state.

38. A third information transmission device, wherein: The third information transmission device comprises: The third transceiver module is configured to send a task request associated with the IoT task, wherein the task request is used to trigger the access network device to send a first message, and the first message is used to indicate the task configuration of the Internet of Things IoT task, wherein the IoT task is for the terminal to execute when at least it is in an RRC non-connected state, wherein the terminal is associated with a reader of backscatter transmission in the IoT task, and the The RRC non-connected state includes: an RRC idle state and / or an RRC inactive state.

39. A communication system, wherein: The information transmission system includes a terminal, an access network device and a core network device; the access network device is configured to implement the information transmission method described in any one of claims 1 to 12, the terminal is configured to implement the information transmission method described in any one of claims 13 to 23, and the core network device is configured to implement the information transmission method described in any one of claims 24 to 34.

40. A communication device, wherein: The communication device comprises: one or more processors; The processor is used to call instructions so that the communication device executes the information transmission method described in any one of claims 1 to 12, claims 13 to 23, and claims 24 to 34.

41. A storage medium, wherein: The storage medium stores instructions, and when the instructions are executed on the communication device, the communication device executes the information transmission method according to any one of claims 1 to 12, claims 13 to 23, and claims 24 to 34.

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