Information transmission method and apparatus, and device, storage medium and product

Abstract

Provided in the present disclosure are an information transmission method and apparatus, and a device, a storage medium and a product, which relate to the field of communications. The method comprises: receiving an inventory message sent by a core network, and sending to a second device a first paging message including the inventory message; receiving a first random access message sent by the second device, and sending a second random access message to the second device; sending to the core network a response message carrying a device identifier ID of at least one second device; receiving a command message sent by the core network, and sending to a corresponding second device a second paging message including the command message; and receiving a command response message sent by the second device.

Description

Information transmission method, apparatus, device, storage medium and product

[0001] Cross Reference to Related Applications

[0002] The present disclosure claims priority from Chinese Patent Application No. 202411267785.9 filed on September 11, 2024 in China, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present disclosure relates to the field of communication, and in particular, to an information transmission method, apparatus, device, storage medium and product. BACKGROUND

[0004] In recent years, the Internet of Things has attracted much attention in the field of wireless communication. With the large-scale application of Internet of Things technology in various consumer terminals and industry fields, passive Internet of Things based on cellular networks (such as Ambient Internet of Things (A-IoT)) has emerged. "Passive" means that terminal node devices connected to the network can not be connected to an external power supply and can not have a battery. They can obtain energy from the environment, implement backscattering or self-generated signals, and support a series of capabilities such as data sensing, wireless transmission, and distributed computing. In existing A-IoT technology, A-IOT devices and base stations connected to the core network are connected through A-IOT air interfaces, as shown in FIG. 1. The base station can be regarded as a reader, which performs inventory, command, and other processes on A-IOT devices through the base station. However, for A-IOT devices far away from the base station, due to the limited transmission distance of the base station, it may not be possible to find some A-IOT devices, resulting in the core network being unable to perform inventory and command operations on these A-IOT devices. SUMMARY

[0005] The purpose of the embodiments of the present disclosure is to provide an information transmission method, apparatus, device, storage medium and product. By adding an intermediate device between the base station and the A-IOT device, the intermediate device directly forwards the information of the core network and the A-IOT device, so that the core network can perform inventory and command operations on A-IOT devices far away.

[0006] To achieve the above-mentioned purpose, the embodiments of the present disclosure provide an information transmission method applied to a first device, the method comprising:

[0007] receiving an inventory message sent by a core network, and sending a first paging message containing the inventory message to a second device;

[0008] receiving a first random access message sent by the second device, and sending a second random access message to the second device;

[0009] sending a response message carrying a device ID of at least one second device to the core network;

[0010] receiving a command message sent by the core network, and sending a second paging message containing the command message to the corresponding second device;

[0011] receiving a command response message sent by the second device.

[0012] As an improvement of the above scheme, the inventory message and the command message are both carried by NAS messages.

[0013] As an improvement of the above scheme, the method further comprises:

[0014] receiving an RRC reconfiguration message sent by a third device; wherein the RRC reconfiguration message carries at least one of the following information:

[0015] a radio bearer;

[0016] an access resource and a transmission resource between the first device and the second device;

[0017] feedback delay information;

[0018] failure reporting information.

[0019] As an improvement of the above scheme, the access resource comprises at least one of the following information:

[0020] a shared time-frequency resource for access;

[0021] a number of second devices;

[0022] a dedicated time-frequency resource for access of each second device;

[0023] identification information of the second device.

[0024] As an improvement of the above scheme, the feedback delay information comprises at least one of the following information:

[0025] a maximum delay and / or a period required by the first device to send the inventory message and the command message;

[0026] an inventory start time of the first device.

[0027] As an improvement of the above scheme, the failure reporting information contains a failure type of the first device, which is an inventory failure, a command failure or a reporting failure.

[0028] As an improvement of the above scheme, the sending condition of the RRC reconfiguration message comprises one of the following:

[0029] The first device supports read-write function, and the first device is in RRC connected state.

[0030] After the first device receives the inventory message and / or the command message, the first device sends a configuration application message to the third device.

[0031] As an improvement of the above scheme, the method further comprises:

[0032] Receiving a broadcast message sent by the third device; wherein the broadcast message carries access resources between the first device and the second device.

[0033] To achieve the above object, the embodiments of the present disclosure further provide an information transmission method applied to a third device, comprising:

[0034] Receiving an inventory message sent by a core network, and sending a first paging message containing the inventory message to a second device through a first device;

[0035] Receiving a first random access message sent by the second device, and sending a second random access message to the second device;

[0036] Sending a response message carrying device IDs of at least one second device to the core network;

[0037] Receiving a command message sent by the core network, and sending a second paging message containing the command message to a corresponding second device through a first device;

[0038] Receiving a command response message of the second device forwarded by the first device.

[0039] As an improvement of the above scheme, the first device transmits the first paging message and the second paging message to the third device.

[0040] As an improvement of the above scheme, the method further comprises:

[0041] Sending an RRC reconfiguration message to the first device; wherein the RRC reconfiguration message carries at least one of the following information:

[0042] Radio bearer;

[0043] Access resources and transmission resources between the second device and the third device;

[0044] Feedback delay information;

[0045] Failure reporting information.

[0046] As an improvement of the above scheme, the method further comprises:

[0047] sending a broadcast message to the first device; wherein the broadcast message carries access resources for the second device and the third device.

[0048] To achieve the above object, the embodiments of the present disclosure further provide an information transmission method applied to a first device, the method comprising:

[0049] receiving an inventory message sent by a third device, and sending a first paging message containing the inventory message to a second device; wherein the inventory message is sent by a core network;

[0050] receiving a first random access message sent by the second device, and sending a second random access message to the second device;

[0051] sending a response message carrying a device ID of at least one second device to the third device, so that the third device forwards the response message to the core network;

[0052] receiving a command message sent by the third device, and sending a second paging message containing the command message to a corresponding second device; wherein the command message is sent by the core network;

[0053] receiving a command response message sent by the second device.

[0054] As an improvement of the above scheme, the method further comprises:

[0055] receiving an RRC reconfiguration message sent by a third device; wherein the RRC reconfiguration message carries at least one of the following information:

[0056] a radio bearer;

[0057] access resources and transmission resources for the first device and the second device;

[0058] feedback delay information;

[0059] failure reporting information.

[0060] As an improvement of the above scheme, the method further comprises:

[0061] receiving a broadcast message sent by a third device; wherein the broadcast message carries access resources for the first device and the second device.

[0062] To achieve the above object, the embodiments of the present disclosure further provide an information transmission method applied to a third device, the method comprising:

[0063] receiving the inventory message sent by the core network, sending the inventory message to the first device, so that the first device sends the inventory message to the second device, and establishing random access with the second device;

[0064] receiving the response message sent by the first device and carrying the device ID of at least one second device, and sending the response message to the core network;

[0065] receiving the command message sent by the core network, sending the command message to the first device, so that the first device sends the command message to the corresponding second device;

[0066] receiving the command response message sent by the first device.

[0067] As an improvement of the above scheme, the method further comprises:

[0068] sending an RRC reconfiguration message to the first device; wherein the RRC reconfiguration message carries at least one of the following information:

[0069] a radio bearer;

[0070] an access resource and a transmission resource used between the first device and the second device;

[0071] feedback delay information;

[0072] failure reporting information.

[0073] As an improvement of the above scheme, the method further comprises:

[0074] sending a broadcast message to the first device; wherein the broadcast message carries an access resource used between the first device and the second device.

[0075] To achieve the above object, the embodiment of the disclosure further provides an information transmission device applied to a first device, the device comprises:

[0076] an inventory information receiving and sending module, configured to receive an inventory message sent by a core network, and send a first paging message containing the inventory message to a second device;

[0077] a random access module, configured to receive a first random access message sent by the second device, and send a second random access message to the second device;

[0078] a response message sending module, configured to send a response message carrying a device ID of at least one second device to the core network;

[0079] a command message receiving and sending module, configured to receive a command message sent by the core network, and send a second paging message containing the command message to the corresponding second device;

[0080] a command response message receiving module, configured to receive a command response message sent by the second device.

[0081] To achieve the above object, the embodiment of the present disclosure further provides an information transmission device applied to a third device, the device comprising:

[0082] an inventory information receiving and sending module, configured to receive an inventory message sent by a core network and send a first paging message containing the inventory message to a second device through a first device;

[0083] a random access module, configured to receive a first random access message sent by the second device and send a second random access message to the second device;

[0084] a response message sending module, configured to send a response message carrying a device ID of at least one second device to the core network;

[0085] a command message receiving and sending module, configured to receive a command message sent by the core network and send a second paging message containing the command message to a corresponding second device through the first device;

[0086] a command response message receiving module, configured to receive a command response message of the second device forwarded by the first device.

[0087] To achieve the above object, the embodiment of the present disclosure further provides an information transmission device applied to a first device, the device comprising:

[0088] an inventory message receiving and sending module, configured to receive an inventory message sent by a third device and send a first paging message containing the inventory message to a second device; wherein the inventory message is sent by a core network;

[0089] a random access module, configured to receive a first random access message sent by the second device and send a second random access message to the second device;

[0090] a response message sending module, configured to send a response message carrying a device ID of at least one second device to the third device, so that the third device forwards the response message to the core network;

[0091] a command message receiving and sending module, configured to receive a command message sent by the third device and send a second paging message containing the command message to a corresponding second device; wherein the command message is sent by the core network;

[0092] a command response message receiving module, configured to receive a command response message sent by the second device.

[0093] To achieve the above object, the embodiment of the present disclosure further provides an information transmission device applied to a third device, the device comprising:

[0094] An inventory message receiving and sending module is configured to receive an inventory message sent by a core network, send the inventory message to a first device, so that the first device sends the inventory message to a second device and establishes a random access with the second device;

[0095] A response message receiving and sending module is configured to receive a response message sent by the first device and carrying a device ID of at least one second device, and send the response message to the core network;

[0096] A command message receiving and sending module is configured to receive a command message sent by the core network, send the command message to the first device, so that the first device sends the command message to a corresponding second device;

[0097] A command response message receiving module is configured to receive a command response message sent by the first device.

[0098] To achieve the above object, the embodiment of the present disclosure further provides an information transmission device comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor executes the computer program to implement the information transmission method according to any one of the above embodiments.

[0099] To achieve the above object, the embodiment of the present disclosure further provides a computer readable storage medium comprising a stored computer program, wherein the computer program controls a device where the computer readable storage medium is located to execute the information transmission method according to any one of the above embodiments when the computer program is running.

[0100] To achieve the above object, the embodiment of the present disclosure further provides a computer program product comprising computer instructions, wherein the computer instructions are executed by a processor to implement the information transmission method according to any one of the above embodiments.

[0101] Compared with the prior art, the information transmission method, device, equipment, storage medium and product provided by the present disclosure add an intermediate device between a base station and an A-IOT device, directly forward information between the core network and the A-IOT device through the intermediate device, so that the core network can perform inventory and command operations on A-IOT devices far away. In addition, by forwarding information between the base station and the A-IOT device through the intermediate device, the coverage of the base station can be enhanced, and the situation that the base station cannot find the A-IOT device can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0102] FIG. 1 is a schematic diagram of information transmission between a base station and an A-IOT device according to the related art;

[0103] FIG. 2 is a schematic diagram of information transmission between a base station and an A-IOT device according to an embodiment of the present disclosure;

[0104] FIG. 3 is a flowchart of a first information transmission method according to an embodiment of the present disclosure;

[0105] FIG. 4 is another flowchart of the first information transmission method according to an embodiment of the present disclosure;

[0106] FIG. 5 is a flowchart of a second information transmission method according to an embodiment of the present disclosure;

[0107] FIG. 6 is another flowchart of the second information transmission method according to an embodiment of the present disclosure;

[0108] FIG. 7 is a flowchart of a third information transmission method according to an embodiment of the present disclosure;

[0109] FIG. 8 is another flowchart of the third information transmission method according to an embodiment of the present disclosure;

[0110] FIG. 9 is a flowchart of a fourth information transmission method according to an embodiment of the present disclosure;

[0111] FIG. 10 is a structural block diagram of a first information transmission apparatus according to an embodiment of the present disclosure;

[0112] FIG. 11 is a structural block diagram of a second information transmission apparatus according to an embodiment of the present disclosure;

[0113] FIG. 12 is a structural block diagram of a third information transmission apparatus according to an embodiment of the present disclosure;

[0114] FIG. 13 is a structural block diagram of a fourth information transmission apparatus according to an embodiment of the present disclosure;

[0115] FIG. 14 is a structural block diagram of an information transmission device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0116] The technical solutions in the embodiments of the present disclosure will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present disclosure.

[0117] Referring to FIG. 2, which is a schematic diagram of information transmission between a base station and an A-IOT device according to an embodiment of the present disclosure, in order to solve the problem that the existing base station cannot detect a remote A-IOT device due to insufficient transmission distance, the embodiment of the present disclosure provides a new information transmission method, which is implemented by adding an intermediate device between the base station and the A-IOT device. The intermediate device can forward the coverage between the base station and the A-IOT device, implement the inventory and command operation of the core network on the A-IOT device, and enhance the coverage of the base station to avoid the situation that the base station cannot find the A-IOT device.

[0118] Further, since the intermediate device is added between the base station and the A-IOT device, the information interaction between the core network and the intermediate device includes the following two ways (which will be described in detail below) :

[0119] Way one, the core network directly sends a Non-Access Stratum (NAS) message to the intermediate device.

[0120] Way two, the core network sends a message to the base station, and the base station sends the message to the intermediate device.

[0121] The first device in the embodiment of the present disclosure is the intermediate device, which can be an access terminal, a User Equipment (UE), a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user equipment. Further, it can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a satellite handset, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device, or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5th Generation Mobile Communication Technology (5G) network, or a terminal device in a future evolved network, etc.

[0122] The second device is the A-IOT device, such as an Electronic Toll Collection (ETC) system, a smart home product, a logistics monitoring device, etc.

[0123] The third device can be an evolved node B (eNB or eNodeB) in a long term evolution (LTE) system, or a next generation radio access network (NG RAN) device, or a base station (gNB) in an NR system, or a radio controller in a cloud radio access network (CRAN), or a relay station, an access point, a bridge, a router, or a network device in a future evolved public land mobile network (PLMN), etc.

[0124] Referring to FIG. 3, FIG. 3 is a flowchart of a first information transmission method provided by an embodiment of the present disclosure, the first information transmission method is implemented by a first device, and the first information transmission method includes the following steps:

[0125] S11, receiving an inventory message sent by a core network, and sending a first paging message containing the inventory message to a second device;

[0126] S12, receiving a first random access message sent by the second device, and sending a second random access message to the second device;

[0127] S13, sending a response message carrying at least one device identifier (ID) of the second device to the core network;

[0128] S14, receiving a command message sent by the core network, and sending a second paging message containing the command message to a corresponding second device;

[0129] S15, receiving a command response message sent by the second device.

[0130] For example, the first information transmission method corresponds to the above-mentioned mode one, and at this time, the inventory message and the command message are both carried by NAS messages. Through the NAS messages, the first device can directly interact with the core network.

[0131] Referring to FIG. 4, FIG. 4 is another flowchart of the first information transmission method provided by an embodiment of the present disclosure, and the information interaction between the first device, the second device, the third device and the core network includes steps 1-9, which are used to describe the above-mentioned steps S11-S15 in detail:

[0132] Step 1, the core network sends a first paging message (NAS message) to the first device, and the first paging message carries at least an inventory message.

[0133] Step 2, the third device sends a Radio Resource Control (RRC) reconfiguration message to the first device to configure the transmission of the first device. Step 2 can be performed before step 1, and the configuration information carried in the RRC reconfiguration message is described in detail below.

[0134] Step 3, the first device sends the inventory message to the second device. For example, the first device can send the inventory message in the form of broadcast, or the first device sends the inventory message to the specified second device. In the specified sending process, the inventory message carries the device ID of the second device that needs to respond to the inventory message, or the first device is associated with the specified second device in advance.

[0135] Step 4, after receiving the inventory message, the second device initiates a random access process, at which time the first device receives the first random access message sent by the second device, and sends the second random access message to the second device, completing the random access of the second device to the first device. It should be noted that the random access process between devices can refer to the prior art, and the present disclosure does not make specific limitations thereto.

[0136] Step 5, after completing the random access with the second device, the first device records the device ID of the second device that has established the random access process, and then the first device sends a response message to the core network, and the response message contains at least the device ID of the second device that has completed the random access process.

[0137] Step 6, after receiving the response message, the core network can know which second devices respond to this inventory operation, that is, these second devices can receive command messages, at which time the core network carries the command message to the first device through a second paging message (NAS message). For example, the command message can be at least one of a read command (reading the information recorded by the second device), a write command (writing information to the second device), and a control command (such as turning off the second device).

[0138] Step 7, after receiving the second paging message, the first device parses the command message and sends the command message to the corresponding second device.

[0139] Step 8, the second device executes the instruction corresponding to the command message, and then sends a command response message to the first device. For example, the command response message is an acknowledgement message, such as when the command message is a write command or a control command, the command response message is an instruction indicating that the second device has responded to the command message; or the command response message is another feedback message, such as when the command message is a read command, the command response message is information read from the second device.

[0140] Step 9, after receiving the command response message, the first device sends a NAS message carrying the command response message to the core network, thereby completing the inventory and command operations of the core network on the second device.

[0141] In the embodiments of the present disclosure, the interaction information between the first device and the core network is carried by the NAS message, so that the first device can directly interact with the core network without the base station, and the information transmission efficiency can be improved while realizing the inventory and command operations of the core network on the A-IOT device.

[0142] Further, the third device needs to configure the first device with information, and the RRC configuration of the third device to the first device can occur before or after the first device receives the NAS message, or the resource information can be delivered through a broadcast message.

[0143] In the first implementation, the third device configures the first device through RRC, and the method further includes:

[0144] S101, receiving an RRC reconfiguration message sent by the third device; wherein the RRC reconfiguration message carries at least one of the following information: a radio bearer, an access resource and a transmission resource between the first device and the second device, feedback delay information, and failure reporting information.

[0145] ① Radio bearer, Radio Bearer (RB) for AIOT information transmission, which can be a signaling radio bearer (Signaling radio bearer, SRB); the radio bearer corresponds to a packet data convergence protocol (Packet Data Convergence Protocol, PDCP) entity and a radio link control (Radio Link Control, RLC) entity, which are used to transmit the inventory message and the command message received by the first device, and the feedback of the inventory message and the command message;

[0146] ② Access resources and transmission resources between the first device and the second device, the access resources including at least one of the following information: shared time-frequency resources for access, including time-frequency resources for contention and non-contention (shared (share) and dedicated (dedicated)); the number of second devices; dedicated time-frequency resources for access of each second device; identification information of the second device, such as device ID;

[0147] ③ Feedback delay information, including the maximum delay and / or period required by the first device to send uplink / downlink inventory messages and command message feedback, and / or including the inventory start time of the first device. The first device needs to transmit information from the second device within the configured time range;

[0148] ④ Failure reporting information, including the failure type of the first device, such as the failure type including receiving temporary identification failure, receiving second device fixed identification failure, command feedback failure, etc., while carrying the failure reason, such as the failure reason: inventory quantity is less than inventory message, resource is insufficient, delay is shorter, etc.

[0149] Further, the third device needs to send the RRC reconfiguration message to the first device only when the sending condition of the RRC reconfiguration message is met. The sending condition of the RRC reconfiguration message includes one of the following:

[0150] 1) The first device supports read-write function, and the first device is in RRC connected state; after the first device reports its own capability including supporting AIOT reader function, the third device sends the RRC reconfiguration message after the first device is in RRC connected state.

[0151] 2) The first device sends a configuration application message to the third device after receiving the inventory message and / or the command message; the UE assistance information report (auxiliary information report) is reported through the RRC message or the UE assistance information.

[0152] In the second embodiment, the third device sends the resource information to the first device through a broadcast message, and at this time, the method further includes:

[0153] S102, receiving a broadcast message sent by a third device; wherein the broadcast message carries access resources for the first device and the second device. The access resources include at least one of the following information: shared time-frequency resources for access, including time-frequency resources for contention and non-contention (shared (share) and dedicated (dedicated)); the number of second devices; dedicated time-frequency resources for access of each second device; identification information of the second device, such as device ID.

[0154] It is worth mentioning that steps 3 and 4 shown in FIG. 4 can be performed before or after steps 5 and 6, that is, steps 3 and 4 can be performed before steps 5 and 6, or steps 3 and 4 can be performed after steps 5 and 6 are performed. After the third device distributes the resource information to the first device through the broadcast message, the first device can perform steps 3 and 4. After the third device configures the first device through RRC, the first device can perform steps 5 and 6.

[0155] Compared with the prior art, the first information transmission method disclosed in the embodiment of the present disclosure adds an intermediate device between the base station and the A-IOT device, directly forwards the information of the core network and the A-IOT device through the intermediate device, so that the core network can perform inventory and command operation on the A-IOT device far away. In addition, the third device configures the resources of the first device, and the first device can use the corresponding resources to forward the information between the core network and the second device, and by configuring the feedback delay information, the information transmission efficiency of the first device can be improved.

[0156] Referring to FIG. 5, FIG. 5 is a flowchart of a second information transmission method provided by the embodiment of the present disclosure, the second information transmission method is implemented by a third device, and the second information transmission method comprises the following steps:

[0157] S21, receiving an inventory message sent by a core network, and sending a first paging message containing the inventory message to a second device through a first device;

[0158] S22, receiving a first random access message sent by the second device, and sending a second random access message to the second device;

[0159] S23, sending a response message carrying a device ID of at least one second device to the core network;

[0160] S24, receiving a command message sent by the core network, and sending a second paging message containing the command message to a corresponding second device through the first device;

[0161] S25, receiving a command response message of the second device forwarded by the first device.

[0162] For example, the second information transmission method corresponds to the above-mentioned mode two, at this time, the first device plays a role of transparent transmission, and the first device transparently transmits the first paging message and the second paging message to the second device. The first device only forwards and does not analyze the first paging message and the second paging message.

[0163] Referring to FIG. 6, which is another flowchart of a second information transmission method according to an embodiment of the present disclosure, information interaction between a first device, a second device, a third device and a core network includes steps 1-9, which are used to describe steps S21-S25 in detail.

[0164] Step 1, the core network sends an inventory message to the third device.

[0165] Step 2, the third device sends an RRC reconfiguration message to the first device to configure the first device for transmission. Step 2 can be performed before step 1, and the configuration information carried in the RRC reconfiguration message is described in detail below.

[0166] Step 3, the third device sends a first paging message containing the inventory message to the second device, and the first paging message needs to pass through the first device for transmission to reach the second device. The third device can send the first paging message to specified second devices, and the device ID of the second device that needs to respond to the inventory message is carried in the first paging message during the specified sending process, or the third device is associated with the specified second devices in advance.

[0167] Step 4, after receiving the first paging message, the second device sends a first random access message to the third device to initiate a random access process, and the third device sends a second random access message to the second device to complete the random access of the second device to the third device. It is worth noting that the random access process between devices can refer to the prior art, and the present disclosure does not make specific limitations.

[0168] Step 5, after the second device completes the random access with the third device, the third device records the device ID of the second device that has established the random access process, and then the third device sends a response message to the core network, which contains at least one device ID of the second device that has completed the random access process.

[0169] Step 6, after receiving the response message, the core network can know which second devices have responded to this inventory operation, which means that these second devices can receive command messages, and at this time the core network sends a command message to the third device. For example, the command message can be at least one of a read command (to read information recorded by the second device), a write command (to write information to the second device) and a control command (such as turning off the second device).

[0170] Step 7, the third device sends a second paging message containing the command message to the second device through the first device for transmission.

[0171] Step 8, the second device executes the instruction corresponding to the command message, and then sends a command response message to the third device, which also needs to be transparently transmitted through the first device. For example, the command response message is an acknowledgement message, such as when the command message is a write command or a control command, the command response message is an instruction indicating that the second device has responded to the command message; or the command response message is other feedback messages, such as when the command message is a read command, the command response message is the information of the second device read.

[0172] Step 9, the third device sends the command response message to the core network.

[0173] In the embodiments of the present disclosure, the first device can improve the efficiency of information transmission through the transparent transmission function, and the first device can enhance the coverage of the third device by forwarding the information of the second device and the third device, thereby avoiding the situation that the third device cannot find the second device.

[0174] Further, the third device needs to configure the first device with information, and the third device RRC configuration of the first device can occur before or after the first device receives the inventory message, or the resource information can be distributed through a broadcast message.

[0175] In the first implementation, the third device configures the first device through RRC, and the method further includes:

[0176] S201, send an RRC reconfiguration message to the first device; wherein the RRC reconfiguration message carries at least one of the following information: radio bearer; access resource and transmission resource between the second device and the third device; feedback delay information; failure reporting information.

[0177] ① Radio bearer, the radio bearer for AIOT information transmission can be a signaling radio bearer (SRB) or a data radio bearer (DRB); the PDCP entity and RLC entity corresponding to the radio bearer are used to transmit the inventory message and the command message sent by the third device to the first device, and the feedback of the inventory message and the command message sent by the first device to the third device;

[0178] ② Access resource and transmission resource between the second device and the third device, the access resource includes at least one of the following information: shared time-frequency resource for access, including time-frequency resource for contention and non-contention (shared share and dedicated); the number of second devices; dedicated time-frequency resource for access of each second device; identification information of the second device, such as device ID;

[0179] ③Feedback delay information, including the maximum delay and / or period that the first device needs to send uplink / downlink inventory messages and command message feedback, and / or, including the inventory start time of the first device. The first device needs to transmit information from the second device within the configured time range;

[0180] ④Failure reporting information, including the failure type of the first device, such as inventory failure, command failure, or reporting failure, and the failure reason, such as the failure reason being: inventory quantity is less than the inventory message, resource shortage, short delay, etc.

[0181] Further, the third device needs to send the RRC reconfiguration message to the first device only when the sending condition of the RRC reconfiguration message is met. The sending condition of the RRC reconfiguration message includes one of the following:

[0182] 1) The first device supports read-write function, and the first device is in RRC connected state; after the first device reports its own capability including supporting AIOT reader function, the third device sends the RRC reconfiguration message after the first device is in RRC connected state.

[0183] 2) The first device sends a configuration application message to the third device after receiving the inventory message and / or the command message; and reports the UE assistance information report (auxiliary information report) through the RRC message or the UE assistance information.

[0184] In the second embodiment, the third device sends resource information to the first device through a broadcast message, and at this time, the method further includes:

[0185] S202, sending a broadcast message to the first device; wherein the broadcast message carries access resources for the second device and the third device.

[0186] Compared with the prior art, the second information transmission method disclosed in the embodiments of the present disclosure adds an intermediate device between the base station and the A-IOT device, and directly forwards the information of the core network and the A-IOT device through the intermediate device, which can enhance the coverage of the base station and avoid the situation that the base station cannot find the A-IOT device. In addition, the third device configures resources for the first device, and the first device can use the corresponding resources to forward the information between the core network and the second device, and by configuring the feedback delay information, the information transmission efficiency of the first device can be improved.

[0187] Referring to FIG. 7, FIG. 7 is a flowchart of a third information transmission method provided by the embodiments of the present disclosure, the third information transmission method is implemented by a first device, and the third information transmission method comprises the following steps:

[0188] S31, receiving an inventory message sent by a third device, and sending a first paging message containing the inventory message to a second device; wherein the inventory message is sent by a core network;

[0189] S32, receiving a first random access message sent by the second device, and sending a second random access message to the second device;

[0190] S33, sending a response message carrying at least one device ID of the second device to the third device, so that the third device forwards the response message to the core network;

[0191] S34, receiving a command message sent by the third device, and sending a second paging message containing the command message to a corresponding second device; wherein the command message is sent by the core network;

[0192] S35, receiving a command response message sent by the second device.

[0193] For example, the third information transmission method corresponds to the above-mentioned mode two, at this time, the first device does not transparently transmit the first paging message and the second paging message, but also needs to analyze the two messages.

[0194] Referring to FIG. 8, FIG. 8 is another flowchart of the third information transmission method provided by the embodiments of the present disclosure, the information interaction between the first device, the second device, the third device and the core network comprises steps 1-13, and the above-mentioned steps S31-S35 are described in detail through the steps 1-13:

[0195] Step 1, the core network sends an inventory message to the third device.

[0196] Step 2, the third device sends an RRC reconfiguration message to the first device to configure the transmission of the first device. Step 2 can be performed before step 1, and the configuration information carried by the RRC reconfiguration message is described in detail below.

[0197] Step 3, the third device sends an inventory message to the first device.

[0198] Step 4, the first device sends a first paging message to the second device, and the first paging message carries the inventory message. For example, the first device can send the inventory message in the form of broadcast, or the first device sends the first paging message to the specified second device. In the specified sending process, the first paging message carries the device ID of the second device that needs to respond to the inventory message, or the first device is associated with the specified second device in advance.

[0199] Step 5, the second device initiates a random access process to complete the random access of the second device to the first device. It is worth noting that the random access process between devices can refer to the prior art, and the present disclosure does not make specific limitations thereto.

[0200] Step 6, after the first device completes the random access with the second device, the device ID of the second device that establishes the random access process is recorded, and then the first device sends a response message to the third device, and the response message contains at least one device ID of the second device that completes the random access process.

[0201] Step 7, the third device sends the response message to the core network.

[0202] Step 8, after the core network receives the response message, it can know which second devices respond to this inventory operation, that is, these second devices can receive command messages, and at this time the core network sends a command message to the third device. For example, the command message can be at least one of a read command (reading information recorded by the second device), a write command (writing information to the second device), and a control command (such as turning off the second device).

[0203] Step 9, the third device sends the command message to the first device.

[0204] Step 10, the first device sends a second paging message carrying the command message to the corresponding second device.

[0205] Step 11, the second device executes the instruction corresponding to the command message, and then sends a command response message to the first device. For example, the command response message is an acknowledgement message, such as when the command message is a write command or a control command, the command response message is an instruction that the second device responds to the command message; or the command response message is other feedback messages, such as when the command message is a read command, the command response message is the information of the second device read.

[0206] Step 12, the first device sends the command response message to the third device.

[0207] Step 13, the third device sends the command response message to the core network.

[0208] In the embodiments of the present disclosure, by forwarding the information of the second device and the third device by the first device, the coverage of the third device can be enhanced, and the situation that the third device cannot find the second device can be avoided.

[0209] Further, the third device needs to configure the first device with information, and the third device RRC configures the first device can occur before or after the first device receives the inventory message, or the resource information can be issued through a broadcast message.

[0210] In the first implementation, the third device configures the first device through RRC, and at this time, the method further includes:

[0211] S301, receiving an RRC reconfiguration message sent by a third device; wherein the RRC reconfiguration message carries at least one of the following information: a radio bearer; an access resource for a first device and a second device; feedback delay information; failure reporting information.

[0212] ① Radio bearer, radio bearer for AIOT information transmission, which can be signaling radio bearer SRB or data radio bearer DRB; the radio bearer corresponds to a PDCP entity and an RLC entity, which are used to transmit inventory messages and command messages sent by the third device to the first device, and feedback of inventory messages and command messages sent by the first device to the third device;

[0213] ② Access resource and transmission resource for the first device and the second device, the access resource includes at least one of the following information: shared time-frequency resource for access, including time-frequency resource for contention and non-contention (shared share and dedicated); the number of second devices; dedicated time-frequency resource for access of each second device; identification information of the second device, such as device ID;

[0214] ③ Feedback delay information, including the maximum delay and / or period that the first device needs to send uplink / downlink inventory message and command message feedback, and / or including the inventory start time of the first device. The first device needs to transmit information from the second device within the configured time range;

[0215] ④ Failure reporting information, including the failure type of the first device, such as receiving temporary identifier failure, receiving second device fixed identifier failure, command feedback failure, etc., while carrying the failure reason, such as: inventory quantity is less than inventory message, resource is insufficient, delay is shorter, etc.

[0216] Further, the third device needs to send the RRC reconfiguration message to the first device only when a sending condition of the RRC reconfiguration message is met. The sending condition of the RRC reconfiguration message includes one of the following:

[0217] 1) The first device supports read-write function, and the first device is in an RRC connected state; after the first device reports its own capability including supporting the AIOT reader function, the third device sends the RRC reconfiguration message after the first device is in the RRC connected state.

[0218] 2) The first device sends a configuration application message to the third device after receiving the inventory message and / or the command message; the UE assistance information report is reported through the RRC message or the UE assistance information.

[0219] In the second implementation, the third device sends the resource information to the first device through the broadcast message, and the method further includes:

[0220] S302, receiving a broadcast message sent by a third device; wherein the broadcast message carries access resources for the first device and the second device.

[0221] Compared with the prior art, the third information transmission method disclosed in the embodiments of the present disclosure adds an intermediate device between the base station and the A-IOT device, directly forwards the information of the core network and the A-IOT device through the intermediate device, can enhance the coverage of the base station, and avoid the case that the base station cannot find the A-IOT device. In addition, the first device can be configured with resources by the third device, the first device can use the corresponding resources to forward the information between the core network and the second device, and the information transmission efficiency of the first device can be improved by configuring the feedback delay information.

[0222] Referring to FIG. 9, FIG. 9 is a flowchart of a fourth information transmission method provided by the embodiments of the present disclosure, the fourth information transmission method is implemented by a third device, and the fourth information transmission method includes:

[0223] S41, receiving an inventory message sent by a core network, and sending the inventory message to a first device, so that the first device sends the inventory message to a second device and establishes random access with the second device;

[0224] S42, receiving a response message sent by the first device and carrying a device ID of at least one second device, and sending the response message to the core network;

[0225] S43, receiving the command message sent by the core network, and sending the command message to the first device to make the first device send the command message to the corresponding second device;

[0226] S44, receiving the command response message sent by the first device.

[0227] Specifically, the method further comprises: sending an RRC reconfiguration message to the first device; and wherein the RRC reconfiguration message carries at least one of the following information: a radio bearer; access resources and transmission resources used between the first device and the second device; feedback delay information; and failure reporting information.

[0228] Specifically, the method further comprises: sending a broadcast message to the first device; and wherein the broadcast message carries access resources used between the first device and the second device.

[0229] It is worth noting that the working process of the fourth information transmission method can refer to the working process of the third device in the third information transmission method described in the above embodiments, which will not be repeated here.

[0230] Referring to FIG. 10, FIG. 10 is a structural block diagram of a first information transmission apparatus 100 provided by the embodiments of the present disclosure, which is applied to a first device, and the information transmission apparatus 100 comprises:

[0231] An inventory information receiving and sending module 11 is configured to receive an inventory message sent by a core network, and send a first paging message containing the inventory message to a second device.

[0232] A random access module 12 is configured to receive a first random access message sent by the second device, and send a second random access message to the second device.

[0233] A response message sending module 13 is configured to send a response message carrying a device ID of at least one second device to the core network.

[0234] A command message receiving and sending module 14 is configured to receive a command message sent by the core network, and send a second paging message containing the command message to the corresponding second device.

[0235] A command response message receiving module 15 is configured to receive a command response message sent by the second device.

[0236] Specifically, the inventory message and the command message are both carried by a NAS message.

[0237] Specifically, the information transmission apparatus 100 further comprises a configuration information receiving module, configured to receive an RRC reconfiguration message sent by a third device; wherein the RRC reconfiguration message carries at least one of the following information: a radio bearer; access resources and transmission resources between the first device and the second device; feedback delay information; failure reporting information.

[0238] Specifically, the access resources comprise at least one of the following information: shared time-frequency resources for access; the number of second devices; dedicated time-frequency resources for access of each second device; identification information of the second devices.

[0239] Specifically, the sending condition of the RRC reconfiguration message comprises one of the following: the first device supports read-write function and is in RRC connected state; the first device sends a configuration application message to the third device after receiving an inventory message and / or a command message.

[0240] Specifically, the configuration information receiving module is further configured to receive a broadcast message sent by the third device; wherein the broadcast message carries access resources between the first device and the second device.

[0241] It is worth noting that the working process of the information transmission apparatus 100 described in the embodiments of the present disclosure can refer to the working process of the first device in the first information transmission method described in the above embodiments, which will not be repeated here.

[0242] Referring to FIG. 11, FIG. 11 is a structural block diagram of a second information transmission apparatus 200 provided by the embodiments of the present disclosure, applied to a third device, the information transmission apparatus 200 comprises:

[0243] An inventory information receiving and sending module 21, configured to receive an inventory message sent by a core network, and send a first paging message containing the inventory message to a second device through a first device;

[0244] A random access module 22, configured to receive a first random access message sent by the second device, and send a second random access message to the second device;

[0245] A response message sending module 23, configured to send a response message carrying a device ID of at least one second device to the core network;

[0246] A command message receiving and sending module 24, configured to receive a command message sent by the core network, and send a second paging message containing the command message to a corresponding second device through the first device;

[0247] A command response message receiving module 25, configured to receive a command response message of the second device forwarded by the first device.

[0248] Specifically, the first device transmits the first paging message and the second paging message to a third device in a transparent manner.

[0249] Specifically, the information transmission apparatus 200 further comprises a configuration information sending module, configured to: send an RRC reconfiguration message to the first device; wherein the RRC reconfiguration message carries at least one of the following information: a radio bearer; access resources and transmission resources between the second device and the third device; feedback delay information; failure reporting information.

[0250] Specifically, the configuration information sending module is further configured to: send a broadcast message to the first device; wherein the broadcast message carries access resources between the second device and the third device.

[0251] It is worth noting that the working process of the information transmission apparatus 200 described in the embodiments of the present disclosure can refer to the working process of the third device in the second information transmission method described in the above embodiments, which will not be repeated here.

[0252] Referring to FIG. 12, FIG. 12 is a structural block diagram of a third information transmission apparatus 300 provided by the embodiments of the present disclosure, which is applied to a first device, and the information transmission apparatus 300 comprises:

[0253] An inventory message receiving and sending module 31, configured to: receive an inventory message sent by a third device, and send a first paging message containing the inventory message to a second device; wherein the inventory message is sent by a core network;

[0254] A random access module 32, configured to: receive a first random access message sent by the second device, and send a second random access message to the second device;

[0255] A response message sending module 33, configured to: send a response message carrying a device ID of at least one second device to the third device, so that the third device forwards the response message to the core network;

[0256] A command message receiving and sending module 34, configured to: receive a command message sent by the third device, and send a second paging message containing the command message to a corresponding second device; wherein the command message is sent by the core network.

[0257] A command response message receiving module 35, configured to: receive a command response message sent by the second device.

[0258] Specifically, the information transmission apparatus 300 further includes a configuration information receiving module, configured to receive an RRC reconfiguration message sent by the third device; wherein the RRC reconfiguration message carries at least one of the following information: a radio bearer; access resources and transmission resources between the first device and the second device; feedback delay information; failure reporting information.

[0259] Specifically, the configuration information receiving module is further configured to receive a broadcast message sent by the third device; wherein the broadcast message carries access resources between the first device and the second device.

[0260] It should be noted that the working process of the information transmission apparatus 300 described in the embodiments of the present disclosure can refer to the working process of the first device in the third information transmission method described in the above embodiments, which will not be repeated here.

[0261] Referring to FIG. 13, FIG. 13 is a structural block diagram of a fourth information transmission apparatus 400 provided by the embodiments of the present disclosure, which is applied to the third device, and the information transmission apparatus 400 includes:

[0262] an inventory message receiving and sending module 41, configured to receive an inventory message sent by a core network, and send the inventory message to the first device, so that the first device sends the inventory message to the second device and establishes a random access with the second device;

[0263] a response message receiving and sending module 42, configured to receive a response message sent by the first device, the response message carrying device IDs of at least one second device, and send the response message to the core network;

[0264] a command message receiving and sending module 43, configured to receive a command message sent by the core network, and send the command message to the first device, so that the first device sends the command message to the corresponding second device;

[0265] a command response message receiving module 44, configured to receive a command response message sent by the first device.

[0266] It should be noted that the working process of the information transmission apparatus 400 described in the embodiments of the present disclosure can refer to the working process of the third device in the third information transmission method described in the above embodiments, which will not be repeated here.

[0267] Referring to FIG. 14, FIG. 14 is a structural block diagram of an information transmission device 500 provided by the embodiments of the present disclosure, which includes a processor 51, a memory 52, and a computer program stored in the memory 52 and capable of running on the processor 51. The processor 51 implements the steps in each of the above information transmission method embodiments when executing the computer program.

[0268] By way of example, the computer program can be segmented into one or more modules / units, which are stored in the memory 52 and executed by the processor 51 to accomplish the present disclosure. The one or more modules / units can be a series of computer program instruction segments capable of accomplishing a specific function, which are used to describe the execution process of the computer program in the information transmission device 500.

[0269] The information transmission device 500 can include, but is not limited to, the processor 51, the memory 52. Those skilled in the art can understand that the schematic diagram is only an example of the information transmission device 500, and does not constitute a limitation on the information transmission device 500, and can include more or fewer components than the diagram, or combine certain components, or different components, for example, the information transmission device 500 can also include an input / output device, a network access device, a bus, etc.

[0270] The processor 51 can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc. The processor 51 is the control center of the information transmission device 500, and connects various parts of the entire information transmission device 500 through various interfaces and lines.

[0271] The memory 52 can be used to store the computer programs and / or modules, and the processor 51 realizes various functions of the information transmission device 500 by running or executing the computer programs and / or modules stored in the memory 52, and calling the data stored in the memory 52. The memory 52 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application program required by a function (such as a sound playing function, an image playing function, etc.), and the like; and the data storage area can store data created according to the use of the mobile phone (such as audio data, a phone book, etc.), and the like. In addition, the memory 52 can include a high-speed random access memory, and can also include a non-volatile memory, for example, a hard disk, a memory, a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, at least one disk storage device, a flash memory device, or other volatile solid-state memory devices.

[0272] When the modules / units of the information transmission device 500 are realized in the form of software function units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, all or part of the processes in the above-mentioned embodiment methods can also be completed by a computer program instructing related hardware, and the computer program can be stored in a computer readable storage medium. When the processor 51 executes the computer program, the steps of the above-mentioned various method embodiments can be realized. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or some intermediate forms, etc. The computer readable medium can include any entity or device capable of carrying the computer program code, recording medium, U disk, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal, and software distribution medium, etc.

[0273] Further, the embodiment of the present disclosure also provides a computer program product, which includes computer instructions, and the computer instructions are executed by a processor to realize the information transmission method according to any one of the above-mentioned embodiments.

[0274] The above-mentioned is the preferred embodiment of the present disclosure, and it should be pointed out that, for those skilled in the art, without departing from the principle of the present disclosure, a number of improvements and refinements can be made, and these improvements and refinements are also regarded as the protection range of the present disclosure.

Claims

1. A method for information transmission, applied to a first device, the method comprising: receiving an inventory message sent by a core network, sending a first paging message containing the inventory message to a second device; receiving a first random access message sent by the second device, sending a second random access message to the second device; sending a response message carrying device identification (ID) of at least one second device to the core network; receiving a command message sent by the core network, sending a second paging message containing the command message to a corresponding second device; and receiving a command response message sent by the second device. The inventory message and the command message are both carried by non-access stratum (NAS) messages. 3.The method of claim 1, further comprising: receiving a radio resource control (RRC) reconfiguration message sent by a third device, wherein the RRC reconfiguration message carries at least one of the following information: radio bearers; access resources and transmission resources for the first device and the second device; feedback delay information; and failure reporting information. The access resources comprise at least one of the following information: shared time-frequency resources for access; a number of the second devices; dedicated time-frequency resources for access of each second device; and identification information of the second devices. The feedback delay information comprises at least one of the following information: a maximum delay and / or a period required by the first device to send the inventory message and the command message; and an inventory start time of the first device. The failure reporting information comprises a failure type of the first device, wherein the failure type is at least one of the following: inventory failure, command failure, and reporting failure. The sending condition of the RRC reconfiguration message comprises at least one of the following: the first device supports read-write function, and the first device is in an RRC connected state; and the first device sends a configuration application message to the third device after receiving the inventory message and / or the command message. 8.The method of claim 1, further comprising: receiving a broadcast message sent by a third device, wherein the broadcast message carries access resources for the first device and the second device. 9.A method for information transmission, applied to a third device, the method comprising: receiving an inventory message sent by a core network, sending a first paging message containing the inventory message to a second device through a first device; receiving a first random access message sent by the second device, sending a second random access message to the second device; sending a response message carrying device ID of at least one second device to the core network; receiving a command message sent by the core network, sending a second paging message containing the command message to a corresponding second device through the first device; and receiving a command response message of the second device forwarded by the first device. The first device transmits the first paging message and the second paging message to the second device transparently. 11.The method of claim 9, further comprising: sending an RRC reconfiguration message to the first device, wherein the RRC reconfiguration message carries at least one of the following information: radio bearers; access resources and transmission resources for the second device and the third device; feedback delay information; and failure reporting information. ​ 2. The information transmission method of claim 1, wherein, ​ ​ ​ ​ ​ ​ ​ 4. The information transmission method of claim 3, wherein, ​ ​ ​ ​ ​ 5. The information transmission method of claim 3, wherein, ​ ​ ​ 6. The information transmission method of claim 3, wherein, ​ 7. The information transmission method of claim 3, wherein, ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 10. The information transmission method of claim 9, wherein, ​ ​ ​ ​ ​ ​ ​ 12.The information transmission method of claim 9, further comprising: sending a broadcast message to the first device, wherein the broadcast message carries access resources between the second device and the third device. 13.An information transmission method applied to a first device, the method comprising: receiving an inventory message sent by a third device, sending a first paging message containing the inventory message to a second device, wherein the inventory message is sent by a core network; receiving a first random access message sent by the second device, sending a second random access message to the second device; sending a response message carrying device IDs of at least one second device to the third device, so that the third device forwards the response message to the core network; receiving a command message sent by the third device, sending a second paging message containing the command message to the second device, wherein the command message is sent by the core network; receiving a command response message sent by the second device. 14.The information transmission method of claim 13, further comprising: receiving an RRC reconfiguration message sent by the third device, wherein the RRC reconfiguration message carries at least one of the following information: a radio bearer; access resources and transmission resources between the first device and the second device; feedback delay information; failure reporting information. 15.The information transmission method of claim 13, further comprising: receiving a broadcast message sent by the third device, wherein the broadcast message carries access resources between the first device and the second device. 16.An information transmission method applied to a third device, the method comprising: receiving an inventory message sent by a core network, sending the inventory message to a first device, so that the first device sends the inventory message to a second device and establishes random access with the second device; receiving a response message carrying device IDs of at least one second device sent by the first device, sending the response message to the core network; receiving a command message sent by the core network, sending the command message to the first device, so that the first device sends the command message to a corresponding second device; receiving a command response message sent by the first device. 17.The information transmission method of claim 16, further comprising: sending an RRC reconfiguration message to the first device, wherein the RRC reconfiguration message carries at least one of the following information: a radio bearer; access resources and transmission resources between the first device and the second device; feedback delay information; failure reporting information. 18.The information transmission method of claim 16, further comprising: sending a broadcast message to the first device, wherein the broadcast message carries access resources between the first device and the second device. 19.An information transmission apparatus applied to a first device, the apparatus comprising: an inventory information receiving and sending module, configured to receive an inventory message sent by a core network, and send a first paging message containing the inventory message to a second device; a random access module, configured to receive a first random access message sent by the second device, and send a second random access message to the second device; a response message sending module, configured to send a response message carrying a device ID of at least one second device to the core network; a command message receiving and sending module, configured to receive a command message sent by the core network, and send a second paging message containing the command message to a corresponding second device; a command response message receiving module, configured to receive a command response message sent by the second device.

20. An information transmission apparatus applied to a third device, the apparatus comprising: an inventory message receiving and sending module, configured to receive an inventory message sent by a core network, and send a first paging message containing the inventory message to a second device through a first device; a random access module, configured to receive a first random access message sent by the second device, and send a second random access message to the second device; a response message sending module, configured to send a response message carrying a device ID of at least one second device to the core network; a command message receiving and sending module, configured to receive a command message sent by the core network, and send a second paging message containing the command message to a corresponding second device through the first device; a command response message receiving module, configured to receive a command response message of the second device forwarded by the first device.

21. An information transmission apparatus applied to a first device, the apparatus comprising: an inventory message receiving and sending module, configured to receive an inventory message sent by a third device, and send a first paging message containing the inventory message to a second device; wherein the inventory message is sent by a core network; a random access module, configured to receive a first random access message sent by the second device, and send a second random access message to the second device; a response message sending module, configured to send a response message carrying a device ID of at least one second device to the third device, so that the third device forwards the response message to the core network; a command message receiving and sending module, configured to receive a command message sent by the third device, and send a second paging message containing the command message to a corresponding second device; wherein the command message is sent by the core network; a command response message receiving module, configured to receive a command response message sent by the second device.

22. An information transmission apparatus applied to a third device, the apparatus comprising: an inventory message receiving and sending module, configured to receive an inventory message sent by a core network, and send the inventory message to a first device, so that the first device sends the inventory message to a second device and establishes a random access with the second device; a response message receiving and sending module, configured to receive a response message carrying a device ID of at least one second device sent by the first device, and send the response message to the core network; a command message receiving and sending module, configured to receive a command message sent by the core network, and send the command message to the first device, so that the first device sends the command message to a corresponding second device. A command response message receiving module, configured to receive a command response message sent by the first device.

23. An information transmission device, comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, and the processor implements the information transmission method according to any one of claims 1-18 when executing the computer program.

24. A computer readable storage medium comprising a stored computer program, wherein, The computer readable storage medium is controlled to perform the information transmission method according to any one of claims 1-18 when the computer program is running.

25. A computer program product, comprising computer instructions, and the computer instructions implement the information transmission method according to any one of claims 1-18 when executed by a processor.

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