Passive internet of things device access method, and apparatus

Abstract

Provided in the present disclosure are a passive Internet of Things device access method and an apparatus. The method comprises: receiving a first feedback message sent by a base station or an intermediate node, the intermediate node being a node having a capability of supporting communication forwarding between a passive Internet of Things and a base station, the first feedback message comprising first indication information or second indication information, the first indication information being used for indicating device identification information of a first passive Internet of Things device which has completed access or a response message of which has been successfully received, and the second indication information being used for indicating device identification information of a second passive Internet of Things device which needs to initiate access or needs to send a response message; and, on the basis of the first feedback message, determining whether the access is completed or the sent response message has been successfully received. The passive Internet of Things device access method and the apparatus provided by the present disclosure can conveniently and effectively determine whether access of a passive Internet of Things device is completed or a response message has been successfully received by a base station or an intermediate node.

Description

Access method and device for passive Internet of Things equipment

[0001] This disclosure claims priority to a Chinese patent application filed with the Patent Office of China on February 23, 2024, with application number 202410200025.X and application name “Access Method and Device for Passive Internet of Things Devices,” the entire contents of which are incorporated by reference into this disclosure. Technical Field

[0002] The present disclosure relates to the field of communication technology, and in particular to an access method and apparatus for a passive Internet of Things device. Background Art

[0003] Passive IoT devices do not require batteries and can draw energy from their surroundings. They can also connect to the internet rather than being managed through a local area network. Due to their simplicity, the protocol stacks they support are significantly reduced. This necessitates the design of simplified processes to match their capabilities, including the initial access process.

[0004] However, in the current competitive access mechanism, the access process is complicated, requiring passive IoT devices to continuously send or monitor information, or the requirements for passive IoT devices are high and difficult to implement, which results in the passive IoT devices being unable to confirm whether the access or response message is successfully received by the base station or intermediate node.

[0005] Therefore, the related art cannot simply and effectively determine whether the passive IoT device has completed access or whether the response message has been successfully received by the base station or intermediate node. Summary of the Invention

[0006] The present disclosure provides an access method and apparatus for a passive Internet of Things device, which solves the problem in related technologies of being unable to simply and effectively determine whether the passive Internet of Things device has completed access or whether the response message has been successfully received by a base station or an intermediate node.

[0007] In a first aspect, the present disclosure provides a method for accessing a passive IoT device, which is applied to the passive IoT device. The method includes:

[0008] Receive a first feedback message sent by a base station or an intermediate node; the intermediate node is a node capable of supporting communication forwarding between a passive Internet of Things and a base station, the first feedback message includes first indication information or second indication information, the first indication information is used to indicate the device identification information of the first passive Internet of Things device that has completed access or successfully received a response message, and the second indication information is used to indicate the device identification information of the second passive Internet of Things device that needs to initiate access or needs to send a response message;

[0009] According to the first feedback message, it is determined whether the access is completed or whether the sent response message is successfully received.

[0010] In the disclosed embodiment, a passive IoT device receives a first feedback message from a base station or an intermediate node, and based on the matching device identification information carried in the first indication information or the matching device identification information carried in the second indication information in the first feedback message, the passive IoT device determines whether access is complete or the response message is successfully received by the base station or the intermediate node. Therefore, the above process of determining whether access is complete or the response message is successfully received by the base station or the intermediate node does not place high demands on the passive IoT device and is relatively easy to implement. At the same time, the passive IoT device does not need to continuously send or monitor information to simply and effectively determine whether the access or response message is successfully received by the base station or the intermediate node.

[0011] In some embodiments, before receiving the first feedback message sent by the base station or the intermediate node, the method further includes:

[0012] Sending a second feedback message to the base station or the intermediate node;

[0013] Among them, the second feedback message is an access request message or a response message, the second feedback message includes at least the device identification information of the passive Internet of Things device, and the second feedback message is sent after receiving the third indication information sent by the base station or the intermediate node, and the third indication information is used to instruct the passive Internet of Things device to initiate access or respond according to the request command information.

[0014] In some embodiments, the device identification information includes any of the following:

[0015] Random numbers or truncated random numbers generated by passive IoT devices themselves;

[0016] After the passive IoT device registers with the core network device, the first temporary identifier or truncated information of the first temporary identifier allocated by the core network device;

[0017] The identifier written by the passive IoT device, where the written identifier is reported by the passive IoT device to the core network device and is used for verification by the core network device;

[0018] The second temporary identifier allocated by the air interface or the truncation information of the second temporary identifier.

[0019] In some embodiments, the second feedback message further includes device identification indication information; the device identification indication information includes at least one of the following:

[0020] The starting bit of the device identification information;

[0021] The length of the device identification information;

[0022] Whether the device identification information supports the execution of the compression algorithm;

[0023] An index based on the compression algorithm used by the device identification information;

[0024] Parameter configuration of the compression algorithm executed based on the device identification information;

[0025] Among them, the compression algorithm is predefined.

[0026] In some embodiments, the device identification information in the first feedback message is determined by the device identification information in the second feedback message, or is determined according to the device identification indication information in the second feedback message.

[0027] In the disclosed embodiment, the device identification information in the first feedback message sent by the base station or intermediate node to the passive IoT device can be determined by the base station or intermediate node based on the device identification information in the received second feedback message; or, it can be determined by the base station or intermediate node based on the device identification indication information in the second feedback message, for example, based on the start bit and length, and / or based on a predefined compression algorithm, the device identification information is compressed to determine the device identification information carried in the first feedback message. Based on the device identification information carried in the first feedback message, the passive IoT device can easily and effectively determine whether access is completed or whether the response message is successfully received by the base station or intermediate node.

[0028] In some embodiments, determining, based on the first feedback message, whether access is completed or whether the sent response message is successfully received includes any of the following:

[0029] If the first feedback message includes the first indication information, and if it is determined that the device identification information carried in the first indication information matches the device identification or truncated information or part of the device identification, it is determined that the access completion or response message is successfully received by the base station or the intermediate node;

[0030] If the first feedback message includes the second indication information, and if it is determined that the device identification information carried in the second indication information does not match the device identification or truncated information or partial information of the device identification, it is determined that the access completion or response message is successfully received by the base station or the intermediate node;

[0031] If the first feedback message includes the first indication information, after decompressing the device identification information carried in the first indication information, if it is determined that there is a device identification matching the own device identification or truncation information, it is determined that the access completion or response message is successfully received by the base station or the intermediate node;

[0032] If the first feedback message includes the second indication information, after decompressing the device identification information carried in the second indication information, if it is determined that there is no device identification or truncated information matching itself, it is determined that the access completion or response message is successfully received by the base station or intermediate node.

[0033] In the embodiment of the present disclosure, a passive Internet of Things device can receive a first feedback message including the first indication information or the second indication information, and discover whether the device identification information carried in the first feedback message matches its own device identification or truncated information or part of its information, thereby determining whether the passive Internet of Things device itself has completed access or the response message has been successfully received by the base station or the intermediate node. This method is simple and effective.

[0034] In a second aspect, the present disclosure provides a method for accessing a passive IoT device, which is applied to a base station or an intermediate node. The method includes:

[0035] receiving a second feedback message sent by the passive Internet of Things device, wherein the second feedback message is an access request message or a response message;

[0036] A first feedback message is sent to the passive Internet of Things device, where the first feedback message includes first indication information or second indication information, the first indication information is used to indicate the device identification information of the first passive Internet of Things device that access is completed or the response message is successfully received, and the second indication information is used to indicate the device identification information of the second passive Internet of Things device that needs to initiate access or needs to send a response message; wherein the first feedback message is used by the passive Internet of Things device to determine whether the access is completed or whether the sent response message is successfully received.

[0037] In the embodiment of the present disclosure, the base station or intermediate node determines which passive IoT device or devices have completed access or the response message has been successfully received by the base station or intermediate node by receiving a second feedback message sent by the passive IoT device, such as an access request message or a response message, and sends a first feedback message to the passive IoT device. The first feedback message carries the first indication information or the second indication information, and carries the matching device identification information based on the first indication information or the second indication information, so that the passive IoT device can determine whether the access is completed or the response message is successfully received by the base station or intermediate node. Therefore, the above process of determining whether the passive IoT device has completed access or the response message has been successfully received by the base station or intermediate node does not place high requirements on the passive IoT device and is relatively easy to implement. At the same time, the passive IoT device does not need to continuously send or monitor information to simply and effectively determine whether the access or response message has been successfully received by the base station or intermediate node.

[0038] In some embodiments, the second feedback message includes at least device identification information of the passive IoT device; the device identification information includes any of the following:

[0039] Random numbers or truncated random numbers generated by passive IoT devices themselves;

[0040] After the passive IoT device registers with the core network device, the first temporary identifier or truncated information of the first temporary identifier allocated by the core network device;

[0041] The identifier written by the passive IoT device, where the written identifier is reported by the passive IoT device to the core network device and is used for verification by the core network device;

[0042] The second temporary identifier allocated by the air interface or the truncation information of the second temporary identifier.

[0043] In some embodiments, the second feedback message further includes device identification indication information, where the device identification indication information includes at least one of the following:

[0044] The starting bit of the device identification information;

[0045] The length of the device identification information;

[0046] Whether the device identification information supports the execution of the compression algorithm;

[0047] An index based on the compression algorithm used by the device identification information;

[0048] Parameter configuration of the compression algorithm executed based on the device identification information;

[0049] Among them, the compression algorithm is predefined.

[0050] In some embodiments, the method further comprises:

[0051] If the second feedback message carries device identification indication information, perform at least one of the following operations according to the device identification indication information:

[0052] Determine, based on the start bit and the length, the device identification information carried in the first feedback message;

[0053] After compressing the device identification information based on a predefined compression algorithm, the device identification information carried in the first feedback message is determined.

[0054] In the disclosed embodiment, the device identification information in the first feedback message sent by the base station or intermediate node to the passive Internet of Things device can be determined by the base station or intermediate node based on the device identification information in the received second feedback message; or, it can be determined by the base station or intermediate node based on the device identification indication information in the second feedback message, for example, based on the start bit and length, and / or, based on a predefined compression algorithm, the device identification information is compressed to determine the device identification information carried in the first feedback message. Therefore, the device identification information carried in the first feedback message can be used by the passive Internet of Things device to easily and effectively determine whether access is completed or whether the response message is successfully received by the base station or intermediate node.

[0055] In a third aspect, the present disclosure provides an access device for a passive Internet of Things device, the device being applied to the passive Internet of Things device, and comprising:

[0056] A receiving unit is configured to receive a first feedback message sent by a base station or an intermediate node; the intermediate node is a node capable of supporting communication forwarding between a passive Internet of Things and a base station, the first feedback message includes first indication information or second indication information, the first indication information is used to indicate the device identification information of the first passive Internet of Things device that has completed access or successfully received a response message, and the second indication information is used to indicate the device identification information of a second passive Internet of Things device that needs to initiate access or needs to send a response message;

[0057] The confirmation unit is used to determine whether the access is completed or whether the sent response message is successfully received according to the first feedback message.

[0058] In the disclosed embodiment, a passive IoT device receives a first feedback message from a base station or an intermediate node, and based on the matching device identification information carried in the first indication information or the matching device identification information carried in the second indication information in the first feedback message, the passive IoT device determines whether access is complete or the response message is successfully received by the base station or the intermediate node. Therefore, the above process of determining whether access is complete or the response message is successfully received by the base station or the intermediate node does not place high demands on the passive IoT device and is relatively easy to implement. At the same time, the passive IoT device does not need to continuously send or monitor information to simply and effectively determine whether the access or response message is successfully received by the base station or the intermediate node.

[0059] In a fourth aspect, the present disclosure provides an access device for a passive IoT device, the device being applied to a base station or an intermediate node, and comprising:

[0060] A receiving unit, configured to receive a second feedback message sent by the passive Internet of Things device, wherein the second feedback message is an access request message or a response message;

[0061] A sending unit is used to send a first feedback message to a passive Internet of Things device, where the first feedback message includes first indication information or second indication information, the first indication information is used to indicate the device identification information of the first passive Internet of Things device that has completed access or successfully received a response message, and the second indication information is used to indicate the device identification information of the second passive Internet of Things device that needs to initiate access or needs to send a response message; wherein the first feedback message is used by the passive Internet of Things device to determine whether the access is completed or whether the sent response message is successfully received.

[0062] In the embodiment of the present disclosure, the base station or intermediate node determines which passive IoT device or devices have completed access or the response message has been successfully received by the base station or intermediate node by receiving a second feedback message sent by the passive IoT device, such as an access request message or a response message, and sends a first feedback message to the passive IoT device. The first feedback message carries the first indication information or the second indication information, and carries the matching device identification information based on the first indication information or the second indication information, so that the passive IoT device can determine whether the access is completed or the response message is successfully received by the base station or intermediate node. Therefore, the above process of determining whether the passive IoT device has completed access or the response message has been successfully received by the base station or intermediate node does not place high requirements on the passive IoT device and is relatively easy to implement. At the same time, the passive IoT device does not need to continuously send or monitor information to simply and effectively determine whether the access or response message has been successfully received by the base station or intermediate node.

[0063] In a fifth aspect, the present disclosure provides an access device for a passive Internet of Things device, which is applied to the passive Internet of Things device. The device includes a memory, a transceiver, and a processor:

[0064] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of a processor; and a processor for reading the computer program in the memory and performing the following operations:

[0065] Receive a first feedback message sent by a base station or an intermediate node; the intermediate node is a node capable of supporting communication forwarding between a passive Internet of Things and a base station, the first feedback message includes first indication information or second indication information, the first indication information is used to indicate the device identification information of the first passive Internet of Things device that has completed access or successfully received a response message, and the second indication information is used to indicate the device identification information of the second passive Internet of Things device that needs to initiate access or needs to send a response message;

[0066] According to the first feedback message, it is determined whether the access is completed or whether the sent response message is successfully received.

[0067] In the disclosed embodiment, a passive IoT device receives a first feedback message from a base station or an intermediate node, and based on the matching device identification information carried in the first indication information or the matching device identification information carried in the second indication information in the first feedback message, the passive IoT device determines whether access is complete or the response message is successfully received by the base station or the intermediate node. Therefore, the above process of determining whether access is complete or the response message is successfully received by the base station or the intermediate node does not place high demands on the passive IoT device and is relatively easy to implement. At the same time, the passive IoT device does not need to continuously send or monitor information to simply and effectively determine whether the access or response message is successfully received by the base station or the intermediate node.

[0068] In some embodiments, the processor is further configured to perform the following operations:

[0069] Before receiving the first feedback message sent by the base station or the intermediate node, sending a second feedback message to the base station or the intermediate node;

[0070] Among them, the second feedback message is an access request message or a response message, the second feedback message includes at least the device identification information of the passive Internet of Things device, and the second feedback message is sent after receiving the third indication information sent by the base station or the intermediate node, and the third indication information is used to instruct the passive Internet of Things device to initiate access or respond according to the request command information.

[0071] In some embodiments, the device identification information includes any of the following:

[0072] Random numbers or truncated random numbers generated by passive IoT devices themselves;

[0073] After the passive IoT device registers with the core network device, the first temporary identifier or truncated information of the first temporary identifier allocated by the core network device;

[0074] The identifier written by the passive IoT device, where the written identifier is reported by the passive IoT device to the core network device and is used for verification by the core network device;

[0075] The second temporary identifier allocated by the air interface or the truncation information of the second temporary identifier.

[0076] In some embodiments, the second feedback message further includes device identification indication information; the device identification indication information includes at least one of the following:

[0077] The starting bit of the device identification information;

[0078] The length of the device identification information;

[0079] Whether the device identification information supports the execution of the compression algorithm;

[0080] An index based on the compression algorithm used by the device identification information;

[0081] Parameter configuration of the compression algorithm executed based on the device identification information;

[0082] Among them, the compression algorithm is predefined.

[0083] In some embodiments, the device identification information in the first feedback message is determined by the device identification information in the second feedback message, or is determined according to the device identification indication information in the second feedback message.

[0084] In the disclosed embodiment, the device identification information in the first feedback message sent by the base station or intermediate node to the passive IoT device can be determined by the base station or intermediate node based on the device identification information in the received second feedback message; or, it can be determined by the base station or intermediate node based on the device identification indication information in the second feedback message, for example, based on the start bit and length, and / or based on a predefined compression algorithm, the device identification information is compressed to determine the device identification information carried in the first feedback message. Based on the device identification information carried in the first feedback message, the passive IoT device can easily and effectively determine whether access is completed or whether the response message is successfully received by the base station or intermediate node.

[0085] In some embodiments, the processor is configured to, when determining, based on the first feedback message, whether access is completed or whether the sent response message is successfully received, specifically include any of the following:

[0086] If the first feedback message includes the first indication information, and if it is determined that the device identification information carried in the first indication information matches the device identification or truncated information or part of the device identification, it is determined that the access completion or response message is successfully received by the base station or the intermediate node;

[0087] If the first feedback message includes the second indication information, and if it is determined that the device identification information carried in the second indication information does not match the device identification or truncated information or partial information of the device identification, it is determined that the access completion or response message is successfully received by the base station or the intermediate node;

[0088] If the first feedback message includes the first indication information, after decompressing the device identification information carried in the first indication information, if it is determined that there is a device identification matching the own device identification or truncation information, it is determined that the access completion or response message is successfully received by the base station or the intermediate node;

[0089] If the first feedback message includes the second indication information, after decompressing the device identification information carried in the second indication information, if it is determined that there is no device identification or truncated information matching itself, it is determined that the access completion or response message is successfully received by the base station or intermediate node.

[0090] In the embodiment of the present disclosure, a passive Internet of Things device can receive a first feedback message including the first indication information or the second indication information, and discover whether the device identification information carried in the first feedback message matches its own device identification or truncated information or part of its information, thereby determining whether the passive Internet of Things device itself has completed access or the response message has been successfully received by the base station or the intermediate node. This method is simple and effective.

[0091] In a sixth aspect, the present disclosure provides an access device for a passive Internet of Things device, which is applied to a base station or an intermediate node. The device includes: a memory, a transceiver, and a processor:

[0092] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of a processor; and a processor for reading the computer program in the memory and performing the following operations:

[0093] receiving a second feedback message sent by the passive Internet of Things device, wherein the second feedback message is an access request message or a response message;

[0094] A first feedback message is sent to the passive Internet of Things device, where the first feedback message includes first indication information or second indication information, the first indication information is used to indicate the device identification information of the first passive Internet of Things device that access is completed or the response message is successfully received, and the second indication information is used to indicate the device identification information of the second passive Internet of Things device that needs to initiate access or needs to send a response message; wherein the first feedback message is used by the passive Internet of Things device to determine whether the access is completed or whether the sent response message is successfully received.

[0095] In the embodiment of the present disclosure, the base station or intermediate node determines which passive IoT device or devices have completed access or the response message has been successfully received by the base station or intermediate node by receiving a second feedback message sent by the passive IoT device, such as an access request message or a response message, and sends a first feedback message to the passive IoT device. The first feedback message carries the first indication information or the second indication information, and carries the matching device identification information based on the first indication information or the second indication information, so that the passive IoT device can determine whether the access is completed or the response message is successfully received by the base station or intermediate node. Therefore, the above process of determining whether the passive IoT device has completed access or the response message has been successfully received by the base station or intermediate node does not place high requirements on the passive IoT device and is relatively easy to implement. At the same time, the passive IoT device does not need to continuously send or monitor information to simply and effectively determine whether the access or response message has been successfully received by the base station or intermediate node.

[0096] In some embodiments, the second feedback message includes at least device identification information of the passive IoT device; the device identification information includes any of the following:

[0097] Random numbers or truncated random numbers generated by passive IoT devices themselves;

[0098] After the passive IoT device registers with the core network device, the first temporary identifier or truncated information of the first temporary identifier allocated by the core network device;

[0099] The identifier written by the passive IoT device, where the written identifier is reported by the passive IoT device to the core network device and is used for verification by the core network device;

[0100] The second temporary identifier allocated by the air interface or the truncation information of the second temporary identifier.

[0101] In some embodiments, the second feedback message further includes device identification indication information, where the device identification indication information includes at least one of the following:

[0102] The starting bit of the device identification information;

[0103] The length of the device identification information;

[0104] Whether the device identification information supports the execution of the compression algorithm;

[0105] An index based on the compression algorithm used by the device identification information;

[0106] Parameter configuration of the compression algorithm executed based on the device identification information;

[0107] Among them, the compression algorithm is predefined.

[0108] In some embodiments, the processor is further configured to perform the following operations:

[0109] If the second feedback message carries device identification indication information, perform at least one of the following operations according to the device identification indication information:

[0110] Determine, based on the start bit and the length, the device identification information carried in the first feedback message;

[0111] After compressing the device identification information based on a predefined compression algorithm, the device identification information carried in the first feedback message is determined.

[0112] In the disclosed embodiment, the device identification information in the first feedback message sent by the base station or intermediate node to the passive Internet of Things device can be determined by the base station or intermediate node based on the device identification information in the received second feedback message; or, it can be determined by the base station or intermediate node based on the device identification indication information in the second feedback message, for example, based on the start bit and length, and / or, based on a predefined compression algorithm, the device identification information is compressed to determine the device identification information carried in the first feedback message. Therefore, the device identification information carried in the first feedback message can be used by the passive Internet of Things device to easily and effectively determine whether access is completed or whether the response message is successfully received by the base station or intermediate node.

[0113] In a seventh aspect, the present disclosure provides a non-transitory readable storage medium, which stores a computer program, and the computer program is used to enable a processor to execute any of the above methods.

[0114] The present disclosure provides an access method and apparatus for a passive Internet of Things device, which first receives a first feedback message sent by a base station or an intermediate node; the intermediate node is a node with the ability to support communication forwarding between the passive Internet of Things and the base station, and the first feedback message includes first indication information or second indication information, the first indication information is used to indicate the device identification information of the first passive Internet of Things device that the access is completed or the response message is successfully received, and the second indication information is used to indicate the device identification information of the second passive Internet of Things device that needs to initiate access or needs to send a response message; based on the first feedback message, it is determined whether the access is completed or whether the sent response message is successfully received. Therefore, the above process of determining whether the access is completed or the response message is successfully received by the base station or the intermediate node does not have high requirements for the passive Internet of Things device and is relatively easy to implement. At the same time, the passive Internet of Things device does not need to continuously send or monitor information to simply and effectively determine whether the access or response message is successfully received by the base station or the intermediate node.

[0115] It should be understood that the contents described in the above summary of the invention are not intended to limit the key or important features of the embodiments of the present disclosure, nor are they intended to limit the scope of the present disclosure. Other features of the present disclosure will become easier to understand through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0116] In order to more clearly illustrate the technical solutions in the present disclosure or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0117] FIG1 is a schematic diagram of a flow chart of a method for accessing a passive IoT device according to an embodiment of the present disclosure;

[0118] FIG2 is an interactive diagram 1 of a method for accessing a passive IoT device provided by an embodiment of the present disclosure;

[0119] FIG3 is a second interactive diagram of the access method for a passive IoT device provided by an embodiment of the present disclosure;

[0120] FIG4 is a schematic diagram of a flow chart of a method for accessing a passive IoT device according to another embodiment of the present disclosure;

[0121] FIG5 is a first structural diagram of an access device for a passive IoT device provided by an embodiment of the present disclosure;

[0122] FIG6 is a second structural diagram of an access device for a passive IoT device provided in an embodiment of the present disclosure;

[0123] FIG7 is a third structural diagram of an access device for a passive IoT device provided in an embodiment of the present disclosure;

[0124] FIG8 is a fourth structural diagram of the access device for a passive IoT device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0125] In the embodiments of the present disclosure, the term "and / or" describes the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0126] In the embodiments of the present disclosure, the term "plurality" refers to two or more than two, and other quantifiers are similar thereto.

[0127] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure and not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0128] In order to clearly understand the technical solution of the present disclosure, the solution of the prior art is first introduced in detail.

[0129] In the current competitive access mechanism, the 4-step access process is complex, requiring passive IoT devices to continuously transmit or monitor information. The 2-step access process requires the simultaneous transmission of preamble and PUSCH information, as well as the execution of fallback operations for different feedback messages. These requirements are high and difficult to implement for passive IoT devices, resulting in the inability of passive IoT devices to confirm whether they have accessed or whether their response messages have been successfully received by the base station or intermediate nodes. Therefore, the related art cannot simply and effectively determine whether a passive IoT device has completed access or whether its response message has been successfully received by the base station or intermediate nodes.

[0130] Therefore, based on the above research, the access method and apparatus for passive IoT devices proposed in the present disclosure are proposed. In the present disclosure, the passive IoT device receives a first feedback message from a base station or an intermediate node, and based on the first indication information in the first feedback message carrying matching device identification information or the second indication information carrying matching device identification information, the passive IoT device determines whether access is complete or the response message is successfully received by the base station or the intermediate node. Therefore, the above process of determining whether access is complete or the response message is successfully received by the base station or the intermediate node does not place high requirements on the passive IoT device and is relatively easy to implement. At the same time, the passive IoT device does not need to continuously send or monitor information to simply and effectively determine whether the access or response message is successfully received by the base station or the intermediate node.

[0131] Among them, the method and the device are based on the same application concept. Since the principles of solving problems by the method and the device are similar, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.

[0132] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings.

[0133] Referring to Figure 1, Figure 1 is a flow chart illustrating a method for accessing a passive IoT device provided in an embodiment of the present disclosure. The method for accessing a passive IoT device provided in this embodiment is performed by a passive IoT device (e.g., a device or product including a barcode tag, a wristband tag, a hangtag, etc., which are not specifically limited herein), and the method for accessing a passive IoT device is described in detail.

[0134] The access method of a passive IoT device provided by the embodiment of the present disclosure includes the following steps:

[0135] Step 101: Receive a first feedback message sent by a base station or an intermediate node.

[0136] Among them, the intermediate node is a node with the ability to support communication forwarding between the passive Internet of Things and the base station. The first feedback message includes first indication information or second indication information. The first indication information is used to indicate the device identification information of the first passive Internet of Things device that has completed access or the response message has been successfully received. The second indication information is used to indicate the device identification information of the second passive Internet of Things device that needs to initiate access or needs to send a response message.

[0137] The intermediate node here can be a UE or a relay node, etc., and is not specifically limited here. In order to distinguish the feedback message sent by the passive IoT device to the base station or the intermediate node, the feedback message sent by the base station or the intermediate node to the passive IoT device here can refer to the first feedback message, and the feedback message sent by the passive IoT device to the base station or the intermediate node can refer to the second feedback message (it should be noted that the first and the second are not limited as a specific order, and the order needs to be determined according to the actual scenario, or there is no need to determine the order).

[0138] The feedback message received by the passive IoT device (here referred to as the first feedback message) includes: first indication information, such as an access confirmation message or a response confirmation message, carrying one or more device identification information; or, includes second indication information, such as an access command message or a send response command message, carrying one or more device identification information that needs to initiate access or needs to (re) send a response message.

[0139] Specifically, the first feedback message may carry first indication information, used to indicate which passive Internet of Things device or devices (here referring to the first passive Internet of Things device) has completed access or the response message has been successfully received, and carries the device identification information of the first passive Internet of Things device; or, the first feedback message may carry second indication information, used to indicate which passive Internet of Things device or devices (here referring to the second passive Internet of Things device) needs to initiate access or needs to send a response message again, and carries the device identification information of the second passive Internet of Things device.

[0140] Step 102: Determine, based on the first feedback message, whether the access is completed or whether the sent response message is successfully received.

[0141] If any passive Internet of Things device receives a first feedback message sent by a base station or an intermediate node, it determines whether there is a device identification that matches its own based on the device identification information carried by the first indication information or the device identification information carried by the second indication information in the first feedback message, and then determines whether its access is completed or whether the response message sent is successfully received. Therefore, in the access process of the passive Internet of Things device, it can simply and effectively determine whether the access or response message is successfully received by the base station or the intermediate node.

[0142] In the disclosed embodiment, a passive IoT device receives a first feedback message from a base station or an intermediate node, and based on the matching device identification information carried in the first indication information or the matching device identification information carried in the second indication information in the first feedback message, the passive IoT device determines whether access is complete or the response message is successfully received by the base station or the intermediate node. Therefore, the above process of determining whether access is complete or the response message is successfully received by the base station or the intermediate node does not place high demands on the passive IoT device and is relatively easy to implement. At the same time, the passive IoT device does not need to continuously send or monitor information to simply and effectively determine whether the access or response message is successfully received by the base station or the intermediate node.

[0143] In some embodiments, before receiving the first feedback message sent by the base station or the intermediate node, the method further includes:

[0144] Sending a second feedback message to the base station or the intermediate node;

[0145] Among them, the second feedback message is an access request message or a response message, the second feedback message includes at least the device identification information of the passive Internet of Things device, and the second feedback message is sent after receiving the third indication information sent by the base station or the intermediate node, and the third indication information is used to instruct the passive Internet of Things device to initiate access or respond according to the request command information.

[0146] If the passive IoT device sends an access request message to the base station or intermediate node, the base station or intermediate node will feedback an access confirmation message or send an access command message to the passive IoT device accordingly; if the passive IoT device sends a response message to the base station or intermediate node, the base station or intermediate node will feedback a response confirmation message or send a response command message to the passive IoT device accordingly.

[0147] In some embodiments, if the base station or intermediate node sends to the passive Internet of Things device an indication message for instructing the passive Internet of Things device to initiate access, correspondingly, the passive Internet of Things device sends to the base station or intermediate node an access request message, and correspondingly, the base station or intermediate node feeds back to the passive Internet of Things device an access confirmation message or sends an access command message; if the base station or intermediate node sends to the passive Internet of Things device an indication message for instructing the passive Internet of Things device to respond according to the request command information, correspondingly, if the passive Internet of Things device sends to the base station or intermediate node a response message, correspondingly, the base station or intermediate node feeds back to the passive Internet of Things device a response confirmation message or sends a response command message.

[0148] Specifically, the passive Internet of Things device confirms that the access is completed or the response message is successfully received by the base station or the intermediate node by receiving the feedback message sent by the base station or the intermediate node; in some embodiments, before the passive Internet of Things device receives the feedback message from the base station or the intermediate node, the passive Internet of Things device sends an access request message or a response message to the base station or the intermediate node; in some embodiments, the access request message or response message sent by the passive Internet of Things device to the base station or the intermediate node carries device identification information.

[0149] FIG2 is a first interactive diagram of a method for accessing a passive IoT device according to an embodiment of the present disclosure. The specific process is as follows:

[0150] Step 1. The passive IoT device sends an access request message or a response message to the base station or the intermediate node (here, the passive IoT device sends a second feedback message to the base station or the intermediate node), where the access request message or the response message carries device identification information.

[0151] Step 2. The base station or intermediate node sends a feedback message (herein referred to as the first feedback message) to the passive IoT device. The feedback message carries matching device identification information, which is used by the passive IoT device to determine whether the access is completed or the response message is successfully received by the base station or intermediate node.

[0152] FIG3 is a second interactive diagram of the access method for a passive IoT device provided by an embodiment of the present disclosure. The specific process is as follows:

[0153] Step 0. The base station or intermediate node sends instruction information (herein, third instruction information) to the passive IoT device, which is used to instruct the passive IoT device to initiate an access (request) or respond according to the request command information;

[0154] Step 1. The passive IoT device sends an access request message or a response message to the base station or intermediate node (here, the passive IoT device sends a second feedback message to the base station or intermediate node, and the response message is determined by the passive IoT device in response to the request command information). The access request message or response message carries device identification information.

[0155] Step 2. The base station or intermediate node sends a feedback message (herein referred to as the first feedback message) to the passive IoT device. The feedback message carries matching device identification information, which is used by the passive IoT device to determine whether the access is completed or the response message is successfully received by the base station or intermediate node.

[0156] In some embodiments, the device identification information includes any of the following:

[0157] Random numbers or truncated random numbers generated by passive IoT devices themselves;

[0158] After the passive IoT device registers with the core network device, the first temporary identifier or truncated information of the first temporary identifier allocated by the core network device;

[0159] The identifier written by the passive IoT device, where the written identifier is reported by the passive IoT device to the core network device and is used for verification by the core network device;

[0160] The second temporary identifier allocated by the air interface or the truncation information of the second temporary identifier.

[0161] In the disclosed embodiment, the device identification information of the passive Internet of Things device can be a random number generated by the device itself or a truncation thereof, or a temporary identifier assigned by the core network after the device is registered (here referring to the first temporary identifier) ​​or a truncation thereof (here referring to the truncation information of the first temporary identifier), or a temporary identifier assigned by the air interface (here referring to the second temporary identifier) ​​or a truncation thereof (here referring to the truncation information of the second temporary identifier), or an identifier written by the passive Internet of Things device, wherein the written identifier is reported by the passive Internet of Things device to the core network device for verification by the core network device.

[0162] In some embodiments, the second feedback message further includes device identification indication information; the device identification indication information includes at least one of the following:

[0163] The starting bit of the device identification information;

[0164] The length of the device identification information;

[0165] Whether the device identification information supports the execution of the compression algorithm;

[0166] An index based on the compression algorithm used by the device identification information;

[0167] Parameter configuration of the compression algorithm executed based on the device identification information;

[0168] Among them, the compression algorithm is predefined.

[0169] In the embodiment of the present disclosure, the second feedback message may further include device identification indication information, where the device identification indication information includes at least one of the following:

[0170] Based on the device identification information, the starting bit of the device identification information in the second feedback message;

[0171] Based on the device identification information, the length of the device identification information in the second feedback message;

[0172] Based on the device identification information, whether the device identification in the second feedback message supports compression, and the compression algorithm is predefined;

[0173] Based on the device identification information, an index of a compression algorithm used in the second feedback message, where the compression algorithm is predefined;

[0174] Based on the device identification information, the parameters of the compression algorithm executed by the device identification information in the second feedback message are configured, and the compression algorithm is predefined.

[0175] In some embodiments, the device identification information in the first feedback message is determined by the device identification information in the second feedback message, or is determined according to the device identification indication information in the second feedback message.

[0176] In the disclosed embodiment, the device identification information in the first feedback message sent by the base station or intermediate node to the passive IoT device can be determined by the base station or intermediate node based on the device identification information in the received second feedback message; or, it can be determined by the base station or intermediate node based on the device identification indication information in the second feedback message, for example, based on the start bit and length, and / or based on a predefined compression algorithm, the device identification information is compressed to determine the device identification information carried in the first feedback message. Based on the device identification information carried in the first feedback message, the passive IoT device can easily and effectively determine whether access is completed or whether the response message is successfully received by the base station or intermediate node.

[0177] In some embodiments, determining, based on the first feedback message, whether access is completed or whether the sent response message is successfully received includes any of the following:

[0178] If the first feedback message includes the first indication information, and if it is determined that the device identification information carried in the first indication information matches the device identification or truncated information or part of the device identification, it is determined that the access completion or response message is successfully received by the base station or the intermediate node;

[0179] If the first feedback message includes the second indication information, and if it is determined that the device identification information carried in the second indication information does not match the device identification or truncated information or partial information of the device identification, it is determined that the access completion or response message is successfully received by the base station or the intermediate node;

[0180] If the first feedback message includes the first indication information, after decompressing the device identification information carried in the first indication information, if it is determined that there is a device identification matching the own device identification or truncation information, it is determined that the access completion or response message is successfully received by the base station or the intermediate node;

[0181] If the first feedback message includes the second indication information, after decompressing the device identification information carried in the second indication information, if it is determined that there is no device identification or truncated information matching itself, it is determined that the access completion or response message is successfully received by the base station or intermediate node.

[0182] In the embodiment of the present disclosure, a method for confirming that the access or response message is successfully received by the base station or the intermediate node includes:

[0183] Method 1: When a passive IoT device receives an access confirmation message or a response confirmation message and finds that the device identification information carried in the message (here refers to the access confirmation message or the response confirmation message) matches its own device identification or truncates or part of its information, it considers that the access is completed or the response message is successfully received by the base station or intermediate node.

[0184] Method 2: When a passive IoT device receives an access command message or sends a response command message, and finds that the device identification information carried in the message (here refers to the access command message or the response command message) does not match its own device identification or truncates or partially truncates its information, it considers that the access is complete or the response message is successfully received by the base station or intermediate node;

[0185] In some embodiments, the access command message or the send response command message carries the device identification information of the access completion or the response message being successfully received by the base station or the intermediate node, and indicates that the passive Internet of Things device that does not match its own device identification or truncation or part of its information needs to initiate access or needs to send the response message again; the passive Internet of Things device receives the access command message or sends the response command message. If it is found that the device identification information carried in the message (here referring to the access command message or the send response command message) does not match its own device identification or truncation or part of its information, it is considered that the passive Internet of Things device needs to initiate access or needs to send the response message again. If it is found that the device identification information carried in the message (here referring to the access command message or the send response command message) matches its own device identification or truncation or part of its information, it is considered that the access completion or response message is successfully received by the base station or the intermediate node.

[0186] Method 3: When a passive IoT device receives a reception confirmation message or a response confirmation message, it decompresses the device identification information and finds a device identification that matches its own or is truncated. It then considers that the access is complete or the response message has been successfully received by the base station or intermediate node.

[0187] Method 4: When a passive IoT device receives an access command message or sends a response command message, it decompresses the device identification information and finds that it does not match its own device identification or truncates it. In this case, it considers that the access is complete or the response message is successfully received by the base station or intermediate node.

[0188] Therefore, the passive Internet of Things device can determine whether the passive Internet of Things device itself has completed access or the response message has been successfully received by the base station or intermediate node by discovering whether the device identification information carried in the first feedback message includes the first indication information or the second indication information, and whether it matches its own device identification or truncated information or part of its information. This method is simple and effective.

[0189] The following describes in detail the access method for passive IoT devices through specific embodiments.

[0190] Scenario 1: The device identification information is a random number, and feedback is sent only through the access confirmation message / response confirmation message. See Examples 1 to 4.

[0191] Exemplary embodiment 1 (the access request message or response message does not include matching identification indication information (i.e., does not include device identification indication information))

[0192] 1. The passive IoT device sends an access request message or a response message to the base station or intermediate node. The access request message or the response message carries a random number generated by the device or a truncated random number.

[0193] 2. Because multiple passive IoT devices may initiate access or send response messages simultaneously, the base station or intermediate node needs to identify different passive IoT devices before sending feedback messages. After receiving access request messages or response messages from one or more passive IoT devices, the base station or intermediate node identifies the passive IoT device that has completed access or confirmed successful receipt of the response message and sends feedback via an access confirmation message or response confirmation message. The access confirmation message or response confirmation message may also carry a random number or a truncated random number that identifies one or more passive IoT devices.

[0194] 3. When the passive IoT device receives an access confirmation message or a response confirmation message and finds that the access confirmation message or the response confirmation message contains a random number generated by itself or a truncation thereof, the passive IoT device considers that the access is completed (or the access is completed, which will not be repeated below) or the response message is successfully received by the base station or the intermediate node.

[0195] Exemplary embodiment 2 (the access request message or response message includes matching identification indication information, start bit and / or length)

[0196] 1. The passive IoT device sends an access request message or a response message to the base station or intermediate node. The access request message or the response message carries a random number generated by the device or a truncated random number.

[0197] In addition, it also carries matching identification indication information (here, device identification indication information, which will not be repeated below). The matching identification indication information includes the starting bit and / or length of the device identification information. The matching identification indication information is used to instruct the base station or intermediate node to send a feedback message to the passive IoT device (the feedback message here refers to the first feedback message). The device identification information fed back to the passive IoT device is determined based on the starting bit and / or length of the device identification information. The converted device identification (information) is carried in the first feedback message.

[0198] 2. Because multiple passive IoT devices may initiate access or send response messages simultaneously, the base station or intermediate node needs to identify different devices before sending feedback messages. After receiving access request messages or response messages from one or more passive IoT devices, the base station or intermediate node identifies the passive IoT device that has completed access or confirmed successful receipt of the response message and sends feedback via an access confirmation message or response confirmation message. The access confirmation message or response confirmation message may also carry a converted random number or a truncated version thereof that identifies one or more passive IoT devices. The converted random number or truncation is further determined based on the start bit and / or length of the matching identification indication information.

[0199] For example, if the base station identifies that the device that has completed access or confirmed successful receipt of a response message includes device 1, and its reported device identification information is a random number 1, and the start bit indicated in the matching identification indication information is 2, then the number from the second high-order bit of random number 1 to its last bit is used as the converted random number 1. Or if the base station also includes a length indication of 5, then the number from the second high-order bit of random number 1 to its sixth high-order bit is used as the converted random number 1. The case where the reported device identification information is a truncated random number is similar and will not be further described.

[0200] 3. The passive IoT device receives an access confirmation message or a response confirmation message, and judges the device identification information contained in the access confirmation message or the response message. If there is device identification information that is identical to the content corresponding to the information bit indicated in the matching identification indication information, the passive IoT device considers that the access is completed or the response message is successfully received by the base station or intermediate node.

[0201] Exemplary embodiment 3 (the access request message or response message includes or does not include matching identification indication information, indicating whether compression is supported, and in some embodiments, carries compression algorithm parameters)

[0202] 1. The passive IoT device sends an access request message or a response message to the base station or intermediate node. The access request message or the response message carries a random number generated by the device or a truncated random number.

[0203] In addition, it also carries matching identification indication information, which includes whether the device identification information supports compression. In some embodiments, it can also carry compression algorithm-related parameters, and the compression algorithm is a predefined algorithm. The matching identification indication information is used to instruct the base station or intermediate node to send a feedback message to the passive Internet of Things device (the feedback message here refers to the first feedback message). Based on whether the device identification information supports compression, in some embodiments, the compression algorithm-related parameters carried are used to determine the device identification information fed back to the passive Internet of Things device. The converted device identification (information) is carried in the first feedback message.

[0204] 2. Because multiple passive IoT devices may initiate access or send response messages simultaneously, the base station or intermediate node needs to identify different passive IoT devices before sending feedback messages. After receiving access request messages or response messages from one or more passive IoT devices, the base station or intermediate node identifies the device that has completed access or confirmed successful receipt of the response message and sends feedback via an access confirmation message or response confirmation message. The access confirmation message or response confirmation message may also carry device identification information that identifies one or more devices. The device identification information is determined based on the matching identifier indication information. For example, the matching identifier information indicates support for compression. In some embodiments, the compression algorithm parameters are also indicated (if no parameters are indicated, the predefined algorithm includes default parameters). The base station then compresses the random number corresponding to a certain passive IoT device identifier or its truncation and includes it in the access confirmation message or response confirmation message. Otherwise, compression is not performed (including when the access request message or response message does not carry the matching identifier indication information or when the matching identifier indication information is carried but indicates that it is not supported), and the random number corresponding to the certain device identifier or its truncation is directly included in the access confirmation message or response confirmation message.

[0205] 3. The passive IoT device receives an access confirmation message or a response confirmation message:

[0206] The passive Internet of Things device does not carry matching identification indication information in the access request message or response message, or carries matching identification indication information indicating that compression is not supported. The passive Internet of Things device determines that the access confirmation message or response confirmation message contains a random number generated by itself or its truncation, then the passive Internet of Things device considers that the access is completed or the response message is successfully received by the base station or intermediate node.

[0207] The passive IoT device carries matching identification indication information in the access request message or response message, and optionally also indicates the compression algorithm parameters (if no parameters are indicated, the predefined algorithm contains default parameters). The passive IoT device decompresses the device identification information in the access confirmation message or response confirmation message (the decompression algorithm predefined on the device side is associated). After decompression, if it is determined that it contains the random number generated by itself or its truncation, the passive IoT device considers that the access is completed or the response message is successfully received by the base station or intermediate node.

[0208] Exemplary embodiment 4 (the access request message or response message includes or does not include matching identification indication information, indicates the compression algorithm index, and optionally carries compression algorithm parameters)

[0209] 1. The passive IoT device sends an access request message or a response message to the base station or intermediate node. The access request message or the response message carries a random number generated by the device or a truncated random number.

[0210] In addition, it also carries matching identification indication information, which includes the algorithm index used to perform compression on the device identification information. In some embodiments, it can also carry compression algorithm-related parameters, and multiple compression algorithms are predefined algorithms. The matching identification indication information is used to instruct the base station or intermediate node to send a feedback message to the passive Internet of Things device (the feedback message here refers to the first feedback message), and the algorithm index used to perform compression based on the device identification information. In some embodiments, the compression algorithm-related parameters carried are used to determine the device identification information fed back to the passive Internet of Things device. The converted device identification (information) is carried in the first feedback message.

[0211] 2. Since multiple passive IoT devices may initiate access or send response messages at the same time, it is necessary to identify different passive IoT devices on the base station or intermediate node side and then send feedback messages. After receiving the access request message or response message from one or more passive IoT devices, the base station or intermediate node identifies the device that has completed access or confirmed the successful receipt of the response message, and sends feedback through an access confirmation message or a response confirmation message. The access confirmation message or the response confirmation message can carry device identification information that identifies one or more devices at the same time. The device identification information is the random number corresponding to the device identification information or the identification information after truncation and compression. The corresponding compression algorithm is the compression algorithm associated with the index indicated by the passive IoT device in the matching identification indication information (multiple compression algorithms are predefined on the base station side). Optionally, if the matching identification indication information contains compression algorithm parameter information, the parameter information is applied to the associated compression algorithm and then the random number or its truncation corresponding to the device is compressed and then included in the access confirmation message or the response confirmation message.

[0212] 3. The passive IoT device receives an access confirmation message or a response confirmation message:

[0213] The passive IoT device does not carry matching identification indication information in the access request message or response message. The passive IoT device determines that the access confirmation message or response confirmation message contains a random number generated by itself or its truncation, then the passive IoT device considers that the access is completed or the response message is successfully received by the base station or intermediate node.

[0214] The passive Internet of Things device carries matching identification indication information in the access request message or response message, including a compression algorithm index indication. In some embodiments, it includes compression algorithm parameter information (if no parameters are indicated, the predefined algorithm includes default parameters). The passive Internet of Things device decompresses the device identification information in the access confirmation message or response confirmation message (according to the decompression algorithm associated with the compression algorithm indicated by the matching identification indication information, the decompression algorithm predefined on the passive Internet of Things device side). After decompression, if it is determined that it contains a random number generated by itself or its truncation, the passive Internet of Things device considers that the access is completed or the response message is successfully received by the base station or intermediate node.

[0215] Scenario 2: The device identification information is a temporary identification assigned by the core network (herein referred to as the first temporary identification, which will not be described in detail below), and feedback is sent via access confirmation / response confirmation message / access command message / send response command message. See Examples 5 to 8.

[0216] Exemplary embodiment 5 (the access request message or response message does not include matching identification indication information; feedback is sent via an access confirmation message / response confirmation message or an access command message / send response command message)

[0217] 1. The passive IoT device sends an access request message or a response message to the base station or the intermediate node. The access request message or the response message carries a temporary identifier assigned by the core network (such as a temporary identifier similar to TMSI, but not limited thereto) or a truncated version thereof.

[0218] 2. Because multiple passive IoT devices may initiate access or send response messages simultaneously, the base station or intermediate node needs to identify different passive IoT devices before sending feedback messages. After receiving access request messages or response messages from one or more passive IoT devices, the base station or intermediate node identifies the device that has completed access or confirmed successful receipt of the response message and sends feedback via an access confirmation message / response confirmation message or an access command message / send response command message. The access confirmation message / response confirmation message or access command message / send response command message may also carry temporary identifiers that identify one or more passive IoT devices, or a truncated version thereof.

[0219] 3.1 When a passive IoT device receives an access confirmation message / response confirmation message and finds that the access confirmation message / response confirmation message contains its own temporary identifier or its truncation, the passive IoT device considers that the access is completed or the response message is successfully received by the base station or intermediate node. Or,

[0220] 3.2 When a passive IoT device receives an access command message / send response command message and finds that the access command message / send response command message does not contain its own temporary identifier or is truncated, the passive IoT device considers that the access is completed or the response message is successfully received by the base station or intermediate node.

[0221] Exemplary embodiment 6 (the access request message or response message includes matching identification indication information, start bit and / or length; feedback is sent via the access confirmation message / response confirmation message)

[0222] 1. The passive IoT device sends an access request message or a response message to the base station or the intermediate node. The access request message or the response message carries a temporary identifier assigned by the core network (such as a temporary identifier similar to TMSI, but not limited thereto) or a truncated version thereof.

[0223] Additionally, the message also carries matching identifier indication information, which includes the starting bit and / or length of the device identification information. The matching identifier indication information is used to instruct the base station or intermediate node to send a feedback message (the feedback message here refers to the first feedback message) to the passive IoT device, and to determine the device identification information fed back to the passive IoT device based on the starting bit and / or length of the device identification information. The first feedback message carries the converted device identification (information).

[0224] 2. Since multiple passive IoT devices may initiate access or send response messages at the same time, it is necessary to identify different passive IoT devices on the base station or intermediate node side and then send feedback messages. After receiving the access request message or response message from one or more passive IoT devices, the base station or intermediate node identifies the device that has completed access or confirmed the successful receipt of the response message, and sends feedback through an access confirmation message or a response confirmation message. The access confirmation message or the response confirmation message may also carry the converted core network allocated temporary identifier or its truncation that identifies one or more devices. The converted core network allocated temporary identifier or its truncation is further determined based on the start bit and / or length in the matching identifier indication information.

[0225] For example, if the base station identifies that the passive IoT device that has completed access or confirmed successful receipt of a response message includes device 1, and its reported device identification information is the core network allocated temporary identification 1, and the starting bit indicated in the matching identification indication information is 2, then the number from the second high-order bit of the core network allocated temporary identification 1 to its last bit is used as the converted core network allocated temporary identification 1. Or if the additional length indication is 5, then the number from the second high-order bit of the core network allocated temporary identification 1 to its sixth high-order bit is used as the converted core network allocated temporary identification 1. The case where the reported device identification information is a truncated core network allocated temporary identification is similar and will not be repeated here.

[0226] 3. The passive IoT device receives an access confirmation message or a response confirmation message, and judges the device identification information contained in the access confirmation message or the response message. If there is device identification information that is identical to the content corresponding to the information bit indicated in the matching identification indication information, the passive IoT device considers that the access is completed or the response message is successfully received by the base station or intermediate node.

[0227] Exemplary embodiment 7 (the access request message or response message includes or does not include matching identification indication information, indicating whether compression is supported, and optionally carries compression algorithm parameters; feedback is sent through the access confirmation message / response confirmation message)

[0228] 1. The passive IoT device sends an access request message or a response message to the base station or the intermediate node. The access request message or the response message carries a temporary identifier assigned by the core network (such as a temporary identifier similar to TMSI, but not limited thereto) or a truncated version thereof.

[0229] In addition, it also carries matching identification indication information, which includes whether the device identification information supports compression. In some embodiments, it can also carry compression algorithm-related parameters, and the compression algorithm is a predefined algorithm. The matching identification indication information is used to instruct the base station or intermediate node to send a feedback message to the passive Internet of Things device (the feedback message here refers to the first feedback message). Based on whether the device identification information supports compression, in some embodiments, the compression algorithm-related parameters carried are used to determine the device identification information fed back to the passive Internet of Things device. The converted device identification (information) is carried in the first feedback message.

[0230] 2. Since multiple passive IoT devices may initiate access or send response messages simultaneously, the base station or intermediate node needs to identify different devices and then send feedback messages. After receiving access request messages or response messages from one or more passive IoT devices, the base station or intermediate node identifies the passive IoT device that has completed access or confirmed successful receipt of the response message, and sends feedback via an access confirmation message or a response confirmation message. The access confirmation message or the response confirmation message may also carry device identification information identifying one or more passive IoT devices. The device identification information is determined based on the matching identifier indication information. For example, the matching identifier information indicates support for compression. In some embodiments, the compression algorithm parameters are also indicated (if no parameters are indicated, the predefined algorithm includes default parameters). The base station then compresses the core network allocated temporary identifier corresponding to a certain device identifier or its truncation and includes it in the access confirmation message or the response confirmation message. Otherwise, compression is not performed (including not carrying the matching identifier indication information in the access request message or the response message, or carrying the matching identifier indication information but indicating non-support), and the core network allocated temporary identifier corresponding to the certain device identifier or its truncation is directly included in the access confirmation message or the response confirmation message.

[0231] 3. The passive IoT device receives an access confirmation message or a response confirmation message:

[0232] The passive Internet of Things device does not carry matching identification indication information in the access request message or response message, or carries matching identification indication information indicating that compression is not supported. The passive Internet of Things device determines that the access confirmation message or response confirmation message contains a temporary identifier allocated by the core network or its truncation, then the passive Internet of Things device considers that the access is completed or the response message is successfully received by the base station or intermediate node.

[0233] The passive Internet of Things device carries matching identification indication information in the access request message or response message. In some embodiments, the compression algorithm parameters are also indicated (if no parameters are indicated, the predefined algorithm contains default parameters). The passive Internet of Things device decompresses the device identification information in the access confirmation message or response confirmation message (the decompression algorithm predefined and associated on the device side). After decompression, it is determined that it contains a temporary identification assigned by the core network or its truncation. The passive Internet of Things device then considers that the access is completed or the response message is successfully received by the base station or intermediate node.

[0234] Exemplary Embodiment 8 (Access Request Message or Response Message Contains or Does Not Contain Matching Identification Indication Information, Indicates Compression Algorithm Index, and Optionally Carries Compression Algorithm Parameters; Feedback is Sent Through Access Confirmation Message / Response Confirmation Message)

[0235] 1. The passive IoT device sends an access request message or a response message to the base station or the intermediate node. The access request message or the response message carries a temporary identifier assigned by the core network (such as a temporary identifier similar to TMSI, but not limited thereto) or a truncated version thereof.

[0236] In addition, it also carries matching identification indication information, which includes the algorithm index used to perform compression on the device identification information in the feedback message. Optionally, it can also carry compression algorithm-related parameters, and multiple compression algorithms are predefined algorithms. The matching identification indication information is used to instruct the base station or intermediate node to send a feedback message to the passive Internet of Things device (the feedback message here refers to the first feedback message), and the algorithm index used to perform compression based on the device identification information. In some embodiments, the compression algorithm-related parameters carried are used to determine the device identification information fed back to the passive Internet of Things device. The converted device identification (information) is carried in the first feedback message.

[0237] 2. Since multiple passive IoT devices may initiate access or send response messages at the same time, it is necessary to identify different passive IoT devices on the base station or intermediate node side and then send feedback messages. After receiving the access request message or response message from one or more passive IoT devices, the base station or intermediate node identifies the device that has completed access or confirmed the successful receipt of the response message, and sends feedback through an access confirmation message or a response confirmation message. The access confirmation message or the response confirmation message can carry device identification information that identifies one or more devices at the same time. The device identification information is the temporary identifier assigned by the core network of the corresponding device or the identification information after truncation and compression. The corresponding compression algorithm is the compression algorithm associated with the index indicated by the device in the matching identifier indication information (the base station side predefines multiple compression algorithms). Optionally, if the matching identifier indication information contains compression algorithm parameter information, the parameter information is applied to the associated compression algorithm and the compression of the temporary identifier assigned by the core network corresponding to the device or its truncation is performed, and then included in the access confirmation message or the response confirmation message.

[0238] 3. The passive IoT device receives an access confirmation message or a response confirmation message:

[0239] If the passive IoT device does not carry matching identifier indication information in the access request message or response message, and the passive IoT device determines that the access confirmation message or response confirmation message contains a temporary identifier assigned by the core network or its truncation, then the passive IoT device considers that the access is completed or the response message is successfully received by the base station or intermediate node;

[0240] The passive Internet of Things device carries matching identification indication information in the access request message or response message, including a compression algorithm index indication, and in some embodiments, includes compression algorithm parameter information (if no parameters are indicated, the predefined algorithm includes default parameters). The passive Internet of Things device decompresses the device identification information in the access confirmation message or response confirmation message (according to the decompression algorithm associated with the compression algorithm indicated by the matching identification indication information, the decompression algorithm predefined and associated on the passive Internet of Things device side). After decompression, it is determined that it contains a temporary identification assigned by the core network or its truncation, then the passive Internet of Things device considers that the access is completed or the response message is successfully received by the base station or intermediate node.

[0241] Scenario 3: The device identification information is a temporary identification assigned by the air interface (herein referred to as the second temporary identification, which will not be described in detail below), and feedback is sent via access confirmation / response confirmation message / access command message / send response command message. See Examples 9 to 12.

[0242] Exemplary Embodiment 9 (Access Request Message or Response Message Does Not Contain Matching Identification Indication Information)

[0243] 1. The passive IoT device sends an access request message or a response message to the base station or the intermediate node. The access request message or the response message carries a temporary identifier assigned by the air interface (such as a temporary identifier similar to C-RNTI, but not limited thereto) or a truncated version thereof.

[0244] 2. Because multiple passive IoT devices may initiate access or send response messages simultaneously, the base station or intermediate node needs to identify different passive IoT devices before sending feedback messages. After receiving access request messages or response messages from one or more devices, the base station or intermediate node identifies the device that has completed access or confirmed successful receipt of the response message and sends feedback via an access confirmation message / response confirmation message or an access command message / send response command message. The access confirmation message / response confirmation message or access command message / send response command message can also carry temporary identifiers for one or more devices or their truncated form.

[0245] 3.1 When a passive IoT device receives an access confirmation message / response confirmation message and finds that the access confirmation message / response confirmation message contains its own temporary identifier or its truncation, the passive IoT device considers that the access is completed or the response message is successfully received by the base station or intermediate node. Or,

[0246] 3.2 When a passive IoT device receives an access command message / send response command message and finds that the access command message / send response command message does not contain its own temporary identifier or is truncated, the passive IoT device considers that the access is completed or the response message is successfully received by the base station or intermediate node.

[0247] Exemplary embodiment 10 (the access request message or response message includes matching identification indication information, start bit and / or length; feedback is provided via the access confirmation message / response confirmation message)

[0248] 1. The passive IoT device sends an access request message or a response message to the base station or the intermediate node. The access request message or the response message carries a temporary identifier assigned by the air interface (such as a temporary identifier similar to C-RNTI, but not limited thereto) or a truncated version thereof.

[0249] Additionally, the message also carries matching identifier indication information, which includes the starting bit and / or length of the device identification information in the feedback message. The matching identifier indication information is used to instruct the base station or intermediate node to determine the device identification information to be fed back to the passive IoT device based on the starting bit and / or length of the device identification information when sending a feedback message (here, the feedback message refers to the first feedback message) to the passive IoT device. The first feedback message carries the converted device identification (information).

[0250] 2. Since multiple passive IoT devices may initiate access or send response messages simultaneously, the base station or intermediate node needs to identify different passive IoT devices and then send feedback messages. After receiving access request messages or response messages from one or more passive IoT devices, the base station or intermediate node identifies the device that has completed access or confirmed successful receipt of the response message, and sends feedback via an access confirmation message or a response confirmation message. The access confirmation message or response confirmation message may also carry a converted temporary identifier allocated on the air interface, or a truncation thereof, that identifies one or more devices. The converted temporary identifier allocated on the air interface, or a truncation thereof, is further determined based on the start bit and / or length in the matching identifier indication information.

[0251] For example, the passive IoT device that the base station identifies as having completed access or confirmed successful receipt of a response message includes device 1, whose reported device identification information is the temporary identification 1 allocated by the air interface, and the matching identification indication information indicates a start bit of 2. The number from the second high bit of the temporary identification 1 allocated by the air interface to the last bit is used as the converted temporary identification 1 allocated by the air interface. Or if the additional length indication is 5, the number from the second high bit of the temporary identification 1 allocated by the air interface to the sixth high bit is used as the converted temporary identification 1 allocated by the air interface. The case where the reported device identification information is a truncated temporary identification allocated by the air interface is similar and will not be described in detail.

[0252] 3. The passive IoT device receives an access confirmation message or a response confirmation message, and judges the device identification information contained in the access confirmation message or the response message. If there is device identification information that is identical to the content corresponding to the information bit indicated in the matching identification indication information, the passive IoT device considers that the access is completed or the response message is successfully received by the base station or intermediate node.

[0253] Exemplary embodiment 11 (the access request message or response message includes or does not include matching identification indication information, indicating whether compression is supported, and in some embodiments carries compression algorithm parameters; feedback is provided through the access confirmation message / response confirmation message)

[0254] 1. The passive IoT device sends an access request message or a response message to the base station or the intermediate node. The access request message or the response message carries an air interface allocated temporary identifier (such as a temporary identifier similar to C-RNTI, but not limited thereto) or a truncated version thereof.

[0255] In addition, it also carries matching identification indication information, which includes whether the device identification information in the feedback message supports compression. In some embodiments, it can also carry compression algorithm-related parameters, and the compression algorithm is a predefined algorithm. The matching identification indication information is used to instruct the base station or intermediate node to send a feedback message to the passive Internet of Things device (the feedback message here refers to the first feedback message), and the algorithm index used for compression is performed according to the device identification information. In some embodiments, the compression algorithm-related parameters carried determine the device identification information fed back to the passive Internet of Things device. The converted device identification (information) is carried in the first feedback message.

[0256] 2. Because multiple passive IoT devices may initiate access or send response messages simultaneously, the base station or intermediate node needs to identify different passive IoT devices before sending feedback messages. After receiving access request messages or response messages from one or more passive IoT devices, the base station or intermediate node identifies the device that has completed access or confirmed successful receipt of the response message and sends feedback via an access confirmation message or response confirmation message. The access confirmation message or response confirmation message may also carry device identification information identifying one or more devices. The device identification information is determined based on matching identifier indication information. For example, if the matching identifier information indicates support for compression and optionally also indicates compression algorithm parameters (if no parameters are indicated, it means a predefined algorithm including default parameters), the base station compresses the temporary identifier assigned to the air interface corresponding to a device identifier, or a truncation thereof, and includes it in the access confirmation message or response confirmation message. Otherwise, compression is not performed (including when the access request message or response message does not carry matching identifier indication information or when the matching identifier indication information is carried but indicates non-support), and the temporary identifier assigned to the air interface corresponding to the device identifier, or a truncation thereof, is directly included in the access confirmation message or response confirmation message.

[0257] 3. The passive IoT device receives an access confirmation message or a response confirmation message:

[0258] The passive Internet of Things device does not carry matching identification indication information in the access request message or response message, or carries matching identification indication information indicating that compression is not supported. The passive Internet of Things device determines that the access confirmation message or response confirmation message contains a temporary identifier allocated by the air interface or its truncation, then the passive Internet of Things device considers that the access is completed or the response message is successfully received by the base station or intermediate node.

[0259] The passive Internet of Things device carries matching identification indication information in the access request message or response message, and in some embodiments also indicates the compression algorithm parameters (if no parameters are indicated, the predefined algorithm contains default parameters). The passive Internet of Things device decompresses the device identification information in the access confirmation message or response confirmation message (the decompression algorithm predefined and associated on the device side). After decompression, it is determined that it contains a temporary identifier allocated by the air interface or its truncation. The passive Internet of Things device then considers that the access is completed or the response message is successfully received by the base station or intermediate node.

[0260] Exemplary embodiment 12 (the access request message or response message includes or does not include matching identification indication information, indicating a compression algorithm index, and in some embodiments, carries compression algorithm parameters; feedback is provided via an access confirmation message / response confirmation message)

[0261] 1. The passive IoT device sends an access request message or a response message to the base station or the intermediate node. The access request message or the response message carries an air interface allocated temporary identifier (such as a temporary identifier similar to C-RNTI, but not limited thereto) or a truncated version thereof.

[0262] In addition, it also carries matching identification indication information, which includes the algorithm index used to perform compression on the device identification information in the feedback message. Optionally, it can also carry compression algorithm-related parameters, and multiple compression algorithms are predefined algorithms. The matching identification indication information is used to instruct the base station or intermediate node to send a feedback message to the passive Internet of Things device (the feedback message here refers to the first feedback message), and the algorithm index used to perform compression based on the device identification information. In some embodiments, the compression algorithm-related parameters carried are used to determine the device identification information fed back to the passive Internet of Things device. The converted device identification (information) is carried in the first feedback message.

[0263] 2. Since multiple passive IoT devices may initiate access or send response messages at the same time, it is necessary to identify different passive IoT devices on the base station or intermediate node side and then send feedback messages. After receiving the access request message or response message from one or more passive IoT devices, the base station or intermediate node identifies the passive IoT device that has completed access or confirmed the successful receipt of the response message, and sends feedback through an access confirmation message or a response confirmation message. The access confirmation message or the response confirmation message can carry device identification information that identifies one or more devices at the same time. The device identification information is the temporary identifier assigned to the air interface of the corresponding device or its truncated and compressed identification information. The corresponding compression algorithm is the compression algorithm associated with the index indicated by the passive IoT device in the matching identifier indication information (the base station side predefines multiple compression algorithms). Optionally, if the matching identifier indication information contains compression algorithm parameter information, the parameter information is applied to the associated compression algorithm and the temporary identifier assigned to the air interface corresponding to the passive IoT device or its truncated compression is performed, and then included in the access confirmation message or the response confirmation message.

[0264] 3. The passive IoT device receives an access confirmation message or a response confirmation message:

[0265] If the passive IoT device does not carry matching identifier indication information in the access request message or response message, and the passive IoT device determines that the access confirmation message or response confirmation message contains the temporary identifier allocated by the air interface or its truncation, then the passive IoT device considers that the access is completed or the response message is successfully received by the base station or intermediate node;

[0266] The passive Internet of Things device carries matching identification indication information in the access request message or response message, including a compression algorithm index indication. In some embodiments, it includes compression algorithm parameter information (if no parameters are indicated, the predefined algorithm includes default parameters). The passive Internet of Things device decompresses the device identification information in the access confirmation message or response confirmation message (according to the decompression algorithm associated with the compression algorithm indicated by the matching identification indication information, the decompression algorithm predefined and associated on the passive Internet of Things device side). After decompression, it is determined that the temporary identification allocated by the air interface is included or it is truncate. The passive Internet of Things device then considers that the access is completed or the response message is successfully received by the base station or intermediate node.

[0267] Therefore, the access method for passive IoT devices proposed in this disclosure involves the passive IoT device sending an access request message or response message carrying device identification information to a base station or intermediate node. The base station or intermediate node then sends a feedback message to the passive IoT device carrying matching device identification information, allowing the passive IoT device to determine whether access is complete or the response message is successfully received by the base station or intermediate node. This simplified process design supports the access process for passive IoT devices, resolving the issue of current access methods being complex and unsuitable for passive IoT devices. It enables a simple and effective determination of whether a passive IoT device has completed access or whether its response message has been successfully received by the base station or intermediate node.

[0268] It should be noted that the access method for passive IoT devices provided by the present disclosure with passive IoT devices as the execution subject can be specifically implemented with reference to the embodiments shown in Figures 1 to 3, and the specific implementation process will not be repeated here.

[0269] Referring to FIG. 4 , FIG. 4 is a flow chart of a method for accessing a passive IoT device according to another embodiment of the present disclosure, which is applied to a base station or an intermediate node, where the intermediate node is a node capable of supporting communication forwarding between the passive IoT device and the base station. The method includes:

[0270] Step 401: Receive a second feedback message sent by a passive IoT device, where the second feedback message is an access request message or a response message;

[0271] Step 402: Send a first feedback message to the passive Internet of Things device, where the first feedback message includes first indication information or second indication information. The first indication information is used to indicate the device identification information of the first passive Internet of Things device that access is completed or the response message is successfully received, and the second indication information is used to indicate the device identification information of the second passive Internet of Things device that needs to initiate access or needs to send a response message. The first feedback message is used by the passive Internet of Things device to determine whether the access is completed or whether the sent response message is successfully received.

[0272] After receiving an access request message or response message from a passive IoT device, the base station or intermediate node sends a first feedback message to the device. The first feedback message can be an access confirmation message or a response confirmation message carrying one or more device identification information, or an access command message or a send response command message carrying one or more device identification information.

[0273] In the embodiment of the present disclosure, the base station or intermediate node determines which passive IoT device or devices have completed access or the response message has been successfully received by the base station or intermediate node by receiving a second feedback message sent by the passive IoT device, such as an access request message or a response message, and sends a first feedback message to the passive IoT device. The first feedback message carries the first indication information or the second indication information, and carries the matching device identification information based on the first indication information or the second indication information, so that the passive IoT device can determine whether the access is completed or the response message is successfully received by the base station or intermediate node. Therefore, the above process of determining whether the passive IoT device has completed access or the response message has been successfully received by the base station or intermediate node does not place high requirements on the passive IoT device and is relatively easy to implement. At the same time, the passive IoT device does not need to continuously send or monitor information to simply and effectively determine whether the access or response message has been successfully received by the base station or intermediate node.

[0274] In some embodiments, the second feedback message includes at least device identification information of the passive IoT device; the device identification information includes any of the following:

[0275] Random numbers or truncated random numbers generated by passive IoT devices themselves;

[0276] After the passive IoT device registers with the core network device, the first temporary identifier or truncated information of the first temporary identifier allocated by the core network device;

[0277] The identifier written by the passive IoT device, where the written identifier is reported by the passive IoT device to the core network device and is used for verification by the core network device;

[0278] The second temporary identifier allocated by the air interface or the truncation information of the second temporary identifier.

[0279] In some embodiments, the second feedback message further includes device identification indication information, where the device identification indication information includes at least one of the following:

[0280] The starting bit of the device identification information;

[0281] The length of the device identification information;

[0282] Whether the device identification information supports the execution of the compression algorithm;

[0283] An index based on the compression algorithm used by the device identification information;

[0284] Parameter configuration of the compression algorithm executed based on the device identification information;

[0285] Among them, the compression algorithm is predefined.

[0286] In some embodiments, the method further comprises:

[0287] If the second feedback message carries device identification indication information, perform at least one of the following operations according to the device identification indication information:

[0288] Determine, based on the start bit and the length, the device identification information carried in the first feedback message;

[0289] After compressing the device identification information based on a predefined compression algorithm, the device identification information carried in the first feedback message is determined.

[0290] Specifically, the base station or the intermediate node confirms, based on the matching identifier indication information in the access request message or the response message, that the device identifier information content in the first feedback message includes at least one of the following:

[0291] Confirm the device identification content (e.g., device identification information) in the feedback message based on the start bit and length;

[0292] The device identification information is compressed based on a predefined compression algorithm and the device identification content in the confirmation feedback message is confirmed.

[0293] In the disclosed embodiment, the device identification information in the first feedback message sent by the base station or intermediate node to the passive Internet of Things device can be determined by the base station or intermediate node based on the device identification information in the received second feedback message; or, it can be determined by the base station or intermediate node based on the device identification indication information in the second feedback message, for example, based on the start bit and length, and / or, based on a predefined compression algorithm, the device identification information is compressed to determine the device identification information carried in the first feedback message. Therefore, the device identification information carried in the first feedback message can be used by the passive Internet of Things device to easily and effectively determine whether access is completed or whether the response message is successfully received by the base station or intermediate node.

[0294] It should be noted that the access method for passive IoT devices provided by the present disclosure with a base station or an intermediate node as the execution body can be specifically implemented with reference to the embodiments shown in Figures 2 to 4, and the specific implementation process will not be repeated here.

[0295] Figure 5 is a structural schematic diagram 1 of the access device of the passive Internet of Things device provided in an embodiment of the present disclosure. As shown in Figure 5, the access device of the passive Internet of Things device provided in this embodiment is applied to the passive Internet of Things device, and the access device of the passive Internet of Things device provided in this embodiment includes: a transceiver 500, which is used to receive and send data under the control of a processor 510.

[0296] In FIG5 , the bus architecture may include any number of interconnected buses and bridges, specifically various circuits connected together by one or more processors represented by processor 510 and memory represented by memory 520. The bus architecture may also connect various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 500 may be a plurality of components, including a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, such as a wireless channel, a wired channel, an optical cable, and the like. For different user devices, the user interface 530 may also be an interface capable of connecting external or internal devices as required, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0297] The processor 510 is responsible for managing the bus architecture and general processing, and the memory 520 can store data used by the processor 510 when performing operations.

[0298] In some embodiments, the processor 510 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0299] The processor 510 is configured to execute any method provided by the embodiments of the present disclosure according to the obtained executable instructions by calling the program stored in the memory 520. The processor 510 and the memory 520 may also be physically separated.

[0300] In this embodiment, the memory 520 is used to store a computer program; the transceiver 500 is used to send and receive data under the control of the processor; and the processor 510 is used to read the computer program in the memory and perform the following operations:

[0301] Receive a first feedback message sent by a base station or an intermediate node; the intermediate node is a node capable of supporting communication forwarding between a passive Internet of Things and a base station, the first feedback message includes first indication information or second indication information, the first indication information is used to indicate the device identification information of the first passive Internet of Things device that has completed access or successfully received a response message, and the second indication information is used to indicate the device identification information of the second passive Internet of Things device that needs to initiate access or needs to send a response message;

[0302] According to the first feedback message, it is determined whether the access is completed or whether the sent response message is successfully received.

[0303] In the disclosed embodiment, a passive IoT device receives a first feedback message from a base station or an intermediate node, and based on the matching device identification information carried in the first indication information or the matching device identification information carried in the second indication information in the first feedback message, the passive IoT device determines whether access is complete or the response message is successfully received by the base station or the intermediate node. Therefore, the above process of determining whether access is complete or the response message is successfully received by the base station or the intermediate node does not place high demands on the passive IoT device and is relatively easy to implement. At the same time, the passive IoT device does not need to continuously send or monitor information to simply and effectively determine whether the access or response message is successfully received by the base station or the intermediate node.

[0304] In some embodiments, the processor 510 is further configured to perform the following operations:

[0305] Before receiving the first feedback message sent by the base station or the intermediate node, sending a second feedback message to the base station or the intermediate node;

[0306] Among them, the second feedback message is an access request message or a response message, the second feedback message includes at least the device identification information of the passive Internet of Things device, and the second feedback message is sent after receiving the third indication information sent by the base station or the intermediate node, and the third indication information is used to instruct the passive Internet of Things device to initiate access or respond according to the request command information.

[0307] In some embodiments, the device identification information includes any of the following:

[0308] Random numbers or truncated random numbers generated by passive IoT devices themselves;

[0309] After the passive IoT device registers with the core network device, the first temporary identifier or truncated information of the first temporary identifier allocated by the core network device;

[0310] The identifier written by the passive IoT device, where the written identifier is reported by the passive IoT device to the core network device and is used for verification by the core network device;

[0311] The second temporary identifier allocated by the air interface or the truncation information of the second temporary identifier.

[0312] In some embodiments, the second feedback message further includes device identification indication information; the device identification indication information includes at least one of the following:

[0313] The starting bit of the device identification information;

[0314] The length of the device identification information;

[0315] Whether the device identification information supports the execution of the compression algorithm;

[0316] An index based on the compression algorithm used by the device identification information;

[0317] Parameter configuration of the compression algorithm executed based on the device identification information;

[0318] Among them, the compression algorithm is predefined.

[0319] In some embodiments, the device identification information in the first feedback message is determined by the device identification information in the second feedback message, or is determined according to the device identification indication information in the second feedback message.

[0320] In the disclosed embodiment, the device identification information in the first feedback message sent by the base station or intermediate node to the passive IoT device can be determined by the base station or intermediate node based on the device identification information in the received second feedback message; or, it can be determined by the base station or intermediate node based on the device identification indication information in the second feedback message, for example, based on the start bit and length, and / or based on a predefined compression algorithm, the device identification information is compressed to determine the device identification information carried in the first feedback message. Based on the device identification information carried in the first feedback message, the passive IoT device can easily and effectively determine whether access is completed or whether the response message is successfully received by the base station or intermediate node.

[0321] In some embodiments, the processor 510 is configured to, when determining, based on the first feedback message, whether access is completed or whether the sent response message is successfully received, specifically include any of the following:

[0322] If the first feedback message includes the first indication information, and if it is determined that the device identification information carried in the first indication information matches the device identification or truncated information or part of the device identification, it is determined that the access completion or response message is successfully received by the base station or the intermediate node;

[0323] If the first feedback message includes the second indication information, and if it is determined that the device identification information carried in the second indication information does not match the device identification or truncated information or partial information of the device identification, it is determined that the access completion or response message is successfully received by the base station or the intermediate node;

[0324] If the first feedback message includes the first indication information, after decompressing the device identification information carried in the first indication information, if it is determined that there is a device identification matching the own device identification or truncation information, it is determined that the access completion or response message is successfully received by the base station or the intermediate node;

[0325] If the first feedback message includes the second indication information, after decompressing the device identification information carried in the second indication information, if it is determined that there is no device identification or truncated information matching itself, it is determined that the access completion or response message is successfully received by the base station or intermediate node.

[0326] In the embodiment of the present disclosure, a passive Internet of Things device can receive a first feedback message including the first indication information or the second indication information, and discover whether the device identification information carried in the first feedback message matches its own device identification or truncated information or part of its information, thereby determining whether the passive Internet of Things device itself has completed access or the response message has been successfully received by the base station or the intermediate node. This method is simple and effective.

[0327] It should be noted here that the access device for passive Internet of Things devices provided by the present disclosure can implement all the method steps implemented by the method embodiment of the first aspect above, and can achieve the same technical effects. The parts and beneficial effects of this embodiment that are the same as those of the method embodiment will not be described in detail here.

[0328] FIG6 is a second structural diagram of an access device for a passive IoT device according to an embodiment of the present disclosure. The access device for a passive IoT device according to this embodiment is applied to a passive IoT device. The access device 600 for a passive IoT device according to this embodiment includes:

[0329] A receiving unit 601 is configured to receive a first feedback message sent by a base station or an intermediate node; the intermediate node is a node capable of supporting communication forwarding between a passive Internet of Things and a base station. The first feedback message includes first indication information or second indication information, the first indication information being used to indicate the device identification information of a first passive Internet of Things device that has completed access or successfully received a response message, and the second indication information being used to indicate the device identification information of a second passive Internet of Things device that needs to initiate access or send a response message.

[0330] The confirmation unit 602 is configured to determine, based on the first feedback message, whether the access is completed or whether the sent response message is successfully received.

[0331] In the disclosed embodiment, a passive IoT device receives a first feedback message from a base station or an intermediate node, and based on the matching device identification information carried in the first indication information or the matching device identification information carried in the second indication information in the first feedback message, the passive IoT device determines whether access is complete or the response message is successfully received by the base station or the intermediate node. Therefore, the above process of determining whether access is complete or the response message is successfully received by the base station or the intermediate node does not place high demands on the passive IoT device and is relatively easy to implement. At the same time, the passive IoT device does not need to continuously send or monitor information to simply and effectively determine whether the access or response message is successfully received by the base station or the intermediate node.

[0332] In some embodiments, the apparatus further comprises: a sending unit; the sending unit is configured to:

[0333] Before receiving the first feedback message sent by the base station or the intermediate node, sending a second feedback message to the base station or the intermediate node;

[0334] Among them, the second feedback message is an access request message or a response message, the second feedback message includes at least the device identification information of the passive Internet of Things device, and the second feedback message is sent after receiving the third indication information sent by the base station or the intermediate node, and the third indication information is used to instruct the passive Internet of Things device to initiate access or respond according to the request command information.

[0335] In some embodiments, the device identification information includes any of the following:

[0336] Random numbers or truncated random numbers generated by passive IoT devices themselves;

[0337] After the passive IoT device registers with the core network device, the first temporary identifier or truncated information of the first temporary identifier allocated by the core network device;

[0338] The identifier written by the passive IoT device, where the written identifier is reported by the passive IoT device to the core network device and is used for verification by the core network device;

[0339] The second temporary identifier allocated by the air interface or the truncation information of the second temporary identifier.

[0340] In some embodiments, the second feedback message further includes device identification indication information; the device identification indication information includes at least one of the following:

[0341] The starting bit of the device identification information;

[0342] The length of the device identification information;

[0343] Whether the device identification information supports the execution of the compression algorithm;

[0344] An index based on the compression algorithm used by the device identification information;

[0345] Parameter configuration of the compression algorithm executed based on the device identification information;

[0346] Among them, the compression algorithm is predefined.

[0347] In some embodiments, the device identification information in the first feedback message is determined by the device identification information in the second feedback message, or is determined according to the device identification indication information in the second feedback message.

[0348] In the disclosed embodiment, the device identification information in the first feedback message sent by the base station or intermediate node to the passive IoT device can be determined by the base station or intermediate node based on the device identification information in the received second feedback message; or, it can be determined by the base station or intermediate node based on the device identification indication information in the second feedback message, for example, based on the start bit and length, and / or based on a predefined compression algorithm, the device identification information is compressed to determine the device identification information carried in the first feedback message. Based on the device identification information carried in the first feedback message, the passive IoT device can easily and effectively determine whether access is completed or whether the response message is successfully received by the base station or intermediate node.

[0349] In some embodiments, the determining unit 602 is specifically configured to perform any of the following:

[0350] When the first feedback message includes the first indication information and it is determined that the device identification information carried in the first indication information matches the device identification or truncated information or part of the device identification, it is determined that the access completion or response message is successfully received by the base station or the intermediate node;

[0351] When the first feedback message includes the second indication information, and it is determined that the device identification information carried in the second indication information does not match the device identification or truncated information or partial information of the device identification, determining that the access completion or response message is successfully received by the base station or the intermediate node;

[0352] When the first feedback message includes the first indication information, after decompressing the device identification information carried in the first indication information, if it is determined that there is a device identification or truncation information that matches itself, it is determined that the access completion or response message is successfully received by the base station or the intermediate node;

[0353] When the first feedback message includes the second indication information, after decompressing the device identification information carried in the second indication information, if it is determined that there is no device identification or truncation information matching itself, it is determined that the access completion or response message is successfully received by the base station or intermediate node.

[0354] In the embodiment of the present disclosure, a passive Internet of Things device can receive a first feedback message including the first indication information or the second indication information, and discover whether the device identification information carried in the first feedback message matches its own device identification or truncated information or part of its information, thereby determining whether the passive Internet of Things device itself has completed access or the response message has been successfully received by the base station or the intermediate node. This method is simple and effective.

[0355] It should be noted here that the access device for passive Internet of Things devices provided by the present disclosure can implement all the method steps implemented by the method embodiment of the first aspect above, and can achieve the same technical effects. The parts and beneficial effects of this embodiment that are the same as those of the method embodiment will not be described in detail here.

[0356] Figure 7 is a third structural schematic diagram of the access device of the passive Internet of Things device provided in an embodiment of the present disclosure. As shown in Figure 7, the access device of the passive Internet of Things device provided in this embodiment is applied to a base station or an intermediate node. The intermediate node is a node with the ability to support communication forwarding between the passive Internet of Things and the base station. The access device of the passive Internet of Things device provided in this embodiment includes: a transceiver 700, which is used to receive and send data under the control of a processor 710.

[0357] In FIG7 , the bus architecture may include any number of interconnected buses and bridges, specifically various circuits linked together by one or more processors represented by processor 710 and memory represented by memory 720. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 700 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, such as a wireless channel, a wired channel, an optical cable, or the like. The processor 710 is responsible for managing the bus architecture and general processing, and the memory 720 may store data used by the processor 710 when performing operations.

[0358] The processor 710 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0359] In this embodiment, the memory 720 is used to store computer programs; the transceiver 700 is used to send and receive data under the control of the processor; and the processor 710 is used to read the computer program in the memory and perform the following operations:

[0360] receiving a second feedback message sent by the passive Internet of Things device, wherein the second feedback message is an access request message or a response message;

[0361] A first feedback message is sent to the passive Internet of Things device, where the first feedback message includes first indication information or second indication information, the first indication information is used to indicate the device identification information of the first passive Internet of Things device that access is completed or the response message is successfully received, and the second indication information is used to indicate the device identification information of the second passive Internet of Things device that needs to initiate access or needs to send a response message; wherein the first feedback message is used by the passive Internet of Things device to determine whether the access is completed or whether the sent response message is successfully received.

[0362] In the embodiment of the present disclosure, the base station or intermediate node determines which passive IoT device or devices have completed access or the response message has been successfully received by the base station or intermediate node by receiving a second feedback message sent by the passive IoT device, such as an access request message or a response message, and sends a first feedback message to the passive IoT device. The first feedback message carries the first indication information or the second indication information, and carries the matching device identification information based on the first indication information or the second indication information, so that the passive IoT device can determine whether the access is completed or the response message is successfully received by the base station or intermediate node. Therefore, the above process of determining whether the passive IoT device has completed access or the response message has been successfully received by the base station or intermediate node does not place high requirements on the passive IoT device and is relatively easy to implement. At the same time, the passive IoT device does not need to continuously send or monitor information to simply and effectively determine whether the access or response message has been successfully received by the base station or intermediate node.

[0363] In some embodiments, the second feedback message includes at least device identification information of the passive IoT device; the device identification information includes any of the following:

[0364] Random numbers or truncated random numbers generated by passive IoT devices themselves;

[0365] After the passive IoT device registers with the core network device, the first temporary identifier or truncated information of the first temporary identifier allocated by the core network device;

[0366] The identifier written by the passive IoT device, where the written identifier is reported by the passive IoT device to the core network device and is used for verification by the core network device;

[0367] The second temporary identifier allocated by the air interface or the truncation information of the second temporary identifier.

[0368] In some embodiments, the second feedback message further includes device identification indication information, where the device identification indication information includes at least one of the following:

[0369] The starting bit of the device identification information;

[0370] The length of the device identification information;

[0371] Whether the device identification information supports the execution of the compression algorithm;

[0372] An index based on the compression algorithm used by the device identification information;

[0373] Parameter configuration of the compression algorithm executed based on the device identification information;

[0374] Among them, the compression algorithm is predefined.

[0375] In some embodiments, the processor is further configured to perform the following operations:

[0376] If the second feedback message carries device identification indication information, perform at least one of the following operations according to the device identification indication information:

[0377] Determine, based on the start bit and the length, the device identification information carried in the first feedback message;

[0378] After compressing the device identification information based on a predefined compression algorithm, the device identification information carried in the first feedback message is determined.

[0379] In the disclosed embodiment, the device identification information in the first feedback message sent by the base station or intermediate node to the passive Internet of Things device can be determined by the base station or intermediate node based on the device identification information in the received second feedback message; or, it can be determined by the base station or intermediate node based on the device identification indication information in the second feedback message, for example, based on the start bit and length, and / or, based on a predefined compression algorithm, the device identification information is compressed to determine the device identification information carried in the first feedback message. Therefore, the device identification information carried in the first feedback message can be used by the passive Internet of Things device to easily and effectively determine whether access is completed or whether the response message is successfully received by the base station or intermediate node.

[0380] It should be noted here that the access device for passive Internet of Things devices provided by the present disclosure can implement all the method steps implemented by the method embodiment of the second aspect above, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those of the method embodiment will not be described in detail here.

[0381] FIG8 is a fourth structural diagram of an access device for a passive Internet of Things device provided in an embodiment of the present disclosure. As shown in FIG8 , the access device for a passive Internet of Things device provided in this embodiment is applied to a base station or an intermediate node. The intermediate node is a node capable of supporting communication forwarding between the passive Internet of Things device and the base station. The access device 800 for a passive Internet of Things device provided in this embodiment includes:

[0382] The receiving unit 801 is configured to receive a second feedback message sent by a passive IoT device, where the second feedback message is an access request message or a response message;

[0383] The sending unit 802 is used to send a first feedback message to the passive Internet of Things device, where the first feedback message includes first indication information or second indication information. The first indication information is used to indicate the device identification information of the first passive Internet of Things device that has completed access or successfully received a response message, and the second indication information is used to indicate the device identification information of the second passive Internet of Things device that needs to initiate access or needs to send a response message. The first feedback message is used by the passive Internet of Things device to determine whether the access is completed or whether the sent response message is successfully received.

[0384] In the embodiment of the present disclosure, the base station or intermediate node determines which passive IoT device or devices have completed access or the response message has been successfully received by the base station or intermediate node by receiving a second feedback message sent by the passive IoT device, such as an access request message or a response message, and sends a first feedback message to the passive IoT device. The first feedback message carries the first indication information or the second indication information, and carries the matching device identification information based on the first indication information or the second indication information, so that the passive IoT device can determine whether the access is completed or the response message is successfully received by the base station or intermediate node. Therefore, the above process of determining whether the passive IoT device has completed access or the response message has been successfully received by the base station or intermediate node does not place high requirements on the passive IoT device and is relatively easy to implement. At the same time, the passive IoT device does not need to continuously send or monitor information to simply and effectively determine whether the access or response message has been successfully received by the base station or intermediate node.

[0385] In some embodiments, the second feedback message includes at least device identification information of the passive IoT device; the device identification information includes any of the following:

[0386] Random numbers or truncated random numbers generated by passive IoT devices themselves;

[0387] After the passive IoT device registers with the core network device, the first temporary identifier or truncated information of the first temporary identifier allocated by the core network device;

[0388] The identifier written by the passive IoT device, where the written identifier is reported by the passive IoT device to the core network device and is used for verification by the core network device;

[0389] The second temporary identifier allocated by the air interface or the truncation information of the second temporary identifier.

[0390] In some embodiments, the second feedback message further includes device identification indication information, where the device identification indication information includes at least one of the following:

[0391] The starting bit of the device identification information;

[0392] The length of the device identification information;

[0393] Whether the device identification information supports the execution of the compression algorithm;

[0394] An index based on the compression algorithm used by the device identification information;

[0395] Parameter configuration of the compression algorithm executed based on the device identification information;

[0396] Among them, the compression algorithm is predefined.

[0397] In some embodiments, the apparatus further comprises: a determining unit; the determining unit is configured to:

[0398] When the second feedback message carries the device identification indication information, perform at least one of the following operations according to the device identification indication information:

[0399] Determine, based on the start bit and the length, the device identification information carried in the first feedback message;

[0400] After compressing the device identification information based on a predefined compression algorithm, the device identification information carried in the first feedback message is determined.

[0401] In the disclosed embodiment, the device identification information in the first feedback message sent by the base station or intermediate node to the passive Internet of Things device can be determined by the base station or intermediate node based on the device identification information in the received second feedback message; or, it can be determined by the base station or intermediate node based on the device identification indication information in the second feedback message, for example, based on the start bit and length, and / or, based on a predefined compression algorithm, the device identification information is compressed to determine the device identification information carried in the first feedback message. Therefore, the device identification information carried in the first feedback message can be used by the passive Internet of Things device to easily and effectively determine whether access is completed or whether the response message is successfully received by the base station or intermediate node.

[0402] It should be noted here that the access device for passive Internet of Things devices provided by the present disclosure can implement all the method steps implemented by the method embodiment of the second aspect above, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those of the method embodiment will not be described in detail here.

[0403] It should be noted that the division of units in the embodiments of the present disclosure is schematic and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of the present disclosure may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0404] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present disclosure, or the part that contributes to the existing technology, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a number of instructions for causing a computer device (which can be a personal computer, server, or network device, etc.) or a processor to execute all or part of the steps of the various embodiments of the present disclosure.

[0405] The embodiments of the present disclosure further provide a non-transitory readable storage medium storing a computer program configured to cause a processor to execute any of the above method embodiments.

[0406] Among them, the non-transitory readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO)), optical storage (such as CDs, DVDs, BDs, HVDs, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drives (SSDs)), etc.

[0407] Those skilled in the art will appreciate that the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present disclosure may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage and optical storage, etc.) containing computer-usable program code.

[0408] The present disclosure is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present disclosure. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0409] These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0410] Obviously, those skilled in the art may make various changes and modifications to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is intended to include these modifications and variations.

Claims

1. A method for accessing a passive Internet of Things device, wherein: Applied to a passive IoT device, the method includes: Receive a first feedback message sent by a base station or an intermediate node; the intermediate node is a node capable of supporting communication forwarding between a passive Internet of Things and a base station, the first feedback message includes first indication information or second indication information, the first indication information is used to indicate the device identification information of the first passive Internet of Things device that has completed access or successfully received a response message, and the second indication information is used to indicate the device identification information of the second passive Internet of Things device that needs to initiate access or needs to send a response message; According to the first feedback message, it is determined whether the access is completed or whether the sent response message is successfully received.

2. The method according to claim 1, wherein Before receiving the first feedback message sent by the base station or the intermediate node, the method further includes: Sending a second feedback message to the base station or the intermediate node; The second feedback message is an access request message or a response message, the second feedback message includes at least the device identification information of the passive Internet of Things device, and the second feedback message is sent after receiving the third indication information sent by the base station or the intermediate node, and the third indication information is used to instruct the passive Internet of Things device to initiate access or respond according to the request command information.

3. The method according to claim 1, wherein The device identification information includes any of the following: The random number generated by the passive IoT device itself or truncated information of the random number; After the passive Internet of Things device registers with the core network device, the first temporary identifier assigned by the core network device or truncated information of the first temporary identifier; An identifier written by the passive IoT device, wherein the written identifier is reported by the passive IoT device to a core network device, and the written identifier is used by the core network device for verification; The second temporary identifier allocated by the air interface or truncation information of the second temporary identifier.

4. The method according to claim 2, wherein: The second feedback message further includes device identification indication information; the device identification indication information includes at least one of the following: The starting bit of the device identification information; The length of the device identification information; Whether the device identification information supports the execution of the compression algorithm; An index based on the compression algorithm used by the device identification information; Parameter configuration of the compression algorithm executed based on the device identification information; Among them, the compression algorithm is predefined; the device identification indication information is used to instruct the base station or intermediate node to determine the device identification information of the passive Internet of Things device carried in the first feedback message based on the device identification indication information.

5. The method according to claim 2 or 4, wherein: The device identification information in the first feedback message is determined by the device identification information in the second feedback message, or is determined according to the device identification indication information in the second feedback message.

6. The method according to any one of claims 1 to 4, wherein: The determining, according to the first feedback message, whether the access is completed or whether the sent response message is successfully received includes any one of the following: If the first feedback message includes first indication information, and if it is determined that the device identification information carried in the first indication information matches the device identification or truncated information or part of the device identification, it is determined that the access completion or response message is successfully received by the base station or the intermediate node; If the first feedback message includes second indication information, and if it is determined that the device identification information carried in the second indication information does not match the device identification or truncated information or partial information of the device identification, it is determined that the access completion or response message is successfully received by the base station or the intermediate node; If the first feedback message includes first indication information, after decompressing the device identification information carried in the first indication information, if it is determined that there is a device identification matching the own device identification or truncation information, it is determined that the access completion or response message is successfully received by the base station or the intermediate node; If the first feedback message includes second indication information, after decompressing the device identification information carried in the second indication information, if it is determined that there is no device identification or truncated information matching itself, it is determined that the access completion or response message is successfully received by the base station or intermediate node.

7. A method for accessing a passive Internet of Things device, wherein: Applied to a base station or an intermediate node, the method includes: Receiving a second feedback message sent by the passive Internet of Things device, wherein the second feedback message is an access request message or a response message; A first feedback message is sent to the passive Internet of Things device, where the first feedback message includes first indication information or second indication information, the first indication information is used to indicate the device identification information of the first passive Internet of Things device that has completed access or successfully received a response message, and the second indication information is used to indicate the device identification information of the second passive Internet of Things device that needs to initiate access or needs to send a response message; wherein the first feedback message is used by the passive Internet of Things device to determine whether the access is completed or whether the sent response message is successfully received.

8. The method according to claim 7, wherein: The second feedback message includes at least device identification information of the passive IoT device; the device identification information includes any one of the following: The random number generated by the passive IoT device itself or truncated information of the random number; After the passive Internet of Things device registers with the core network device, the first temporary identifier assigned by the core network device or truncated information of the first temporary identifier; An identifier written by the passive IoT device, wherein the written identifier is reported by the passive IoT device to a core network device, and the written identifier is used by the core network device for verification; The second temporary identifier allocated by the air interface or truncation information of the second temporary identifier.

9. The method according to claim 7 or 8, wherein The second feedback message further includes device identification indication information, wherein the device identification indication information includes at least one of the following: The starting bit of the device identification information; The length of the device identification information; Whether the device identification information supports the execution of the compression algorithm; An index based on the compression algorithm used by the device identification information; Parameter configuration of the compression algorithm executed based on the device identification information; Wherein, the compression algorithm is predefined.

10. The method according to claim 9, wherein: The method further comprises: If the second feedback message carries device identification indication information, perform at least one of the following operations according to the device identification indication information: Determining device identification information carried in the first feedback message based on the start bit and the length; After compressing the device identification information based on a predefined compression algorithm, the device identification information carried in the first feedback message is determined.

11. An access device for a passive Internet of Things device, wherein: The device is applied to a passive Internet of Things device, and the device includes: A receiving unit, configured to receive a first feedback message sent by a base station or an intermediate node; the intermediate node is a node capable of supporting communication forwarding between a passive Internet of Things and a base station, the first feedback message including first indication information or second indication information, the first indication information being used to indicate device identification information of a first passive Internet of Things device that has completed access or successfully received a response message, and the second indication information being used to indicate device identification information of a second passive Internet of Things device that needs to initiate access or needs to send a response message; A confirmation unit is used to determine whether the access is completed or whether the sent response message is successfully received based on the first feedback message.

12. An access device for a passive Internet of Things device, wherein: Applied to a base station or an intermediate node, the device includes: A receiving unit, configured to receive a second feedback message sent by a passive Internet of Things device, wherein the second feedback message is an access request message or a response message; A sending unit is used to send a first feedback message to the passive Internet of Things device, where the first feedback message includes first indication information or second indication information, the first indication information is used to indicate the device identification information of the first passive Internet of Things device whose access is completed or whose response message is successfully received, and the second indication information is used to indicate the device identification information of the second passive Internet of Things device that needs to initiate access or needs to send a response message; wherein the first feedback message is used by the passive Internet of Things device to determine whether the access is completed or whether the sent response message is successfully received.

13. An access device for a passive Internet of Things device, wherein: Applied to passive IoT devices, the device includes a memory, a transceiver, and a processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Receive a first feedback message sent by a base station or an intermediate node; the intermediate node is a node capable of supporting communication forwarding between a passive Internet of Things and a base station, the first feedback message includes first indication information or second indication information, the first indication information is used to indicate the device identification information of the first passive Internet of Things device that has completed access or successfully received a response message, and the second indication information is used to indicate the device identification information of the second passive Internet of Things device that needs to initiate access or needs to send a response message; According to the first feedback message, it is determined whether the access is completed or whether the sent response message is successfully received.

14. The device according to claim 13, wherein The processor is further configured to perform the following operations: Before receiving the first feedback message sent by the base station or the intermediate node, sending a second feedback message to the base station or the intermediate node; The second feedback message is an access request message or a response message, the second feedback message includes at least the device identification information of the passive Internet of Things device, and the second feedback message is sent after receiving the third indication information sent by the base station or the intermediate node, and the third indication information is used to instruct the passive Internet of Things device to initiate access or respond according to the request command information.

15. The device according to claim 13, wherein The device identification information includes any of the following: The random number generated by the passive IoT device itself or truncated information of the random number; After the passive Internet of Things device registers with the core network device, the first temporary identifier assigned by the core network device or truncated information of the first temporary identifier; An identifier written by the passive IoT device, wherein the written identifier is reported by the passive IoT device to a core network device, and the written identifier is used by the core network device for verification; The second temporary identifier allocated by the air interface or truncation information of the second temporary identifier.

16. The device according to claim 14, wherein The second feedback message further includes device identification indication information; the device identification indication information includes at least one of the following: The starting bit of the device identification information; The length of the device identification information; Whether the device identification information supports the execution of the compression algorithm; An index based on the compression algorithm used by the device identification information; Parameter configuration of the compression algorithm executed based on the device identification information; The compression algorithm is predefined.

17. The device according to claim 14 or 16, wherein The device identification information in the first feedback message is determined by the device identification information in the second feedback message, or is determined according to the device identification indication information in the second feedback message.

18. The device according to any one of claims 13 to 16, wherein: The processor is configured to, when determining, based on the first feedback message, whether access is completed or whether a sent response message is successfully received, include any of the following: If the first feedback message includes first indication information, and if it is determined that the device identification information carried in the first indication information matches the device identification or truncated information or part of the device identification, it is determined that the access completion or response message is successfully received by the base station or the intermediate node; If the first feedback message includes second indication information, and if it is determined that the device identification information carried in the second indication information does not match the device identification or truncated information or partial information of the device identification, it is determined that the access completion or response message is successfully received by the base station or the intermediate node; If the first feedback message includes first indication information, after decompressing the device identification information carried in the first indication information, if it is determined that there is a device identification matching the own device identification or truncation information, it is determined that the access completion or response message is successfully received by the base station or the intermediate node; If the first feedback message includes second indication information, after decompressing the device identification information carried in the second indication information, if it is determined that there is no device identification or truncated information matching itself, it is determined that the access completion or response message is successfully received by the base station or intermediate node.

19. An access device for a passive Internet of Things device, wherein: Applied to a base station or an intermediate node, the device includes: a memory, a transceiver, and a processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Receiving a second feedback message sent by the passive Internet of Things device, wherein the second feedback message is an access request message or a response message; A first feedback message is sent to the passive Internet of Things device, where the first feedback message includes first indication information or second indication information, the first indication information is used to indicate the device identification information of the first passive Internet of Things device that has completed access or successfully received a response message, and the second indication information is used to indicate the device identification information of the second passive Internet of Things device that needs to initiate access or needs to send a response message; wherein the first feedback message is used by the passive Internet of Things device to determine whether the access is completed or whether the sent response message is successfully received.

20. The device according to claim 19, wherein The second feedback message includes at least device identification information of the passive IoT device; the device identification information includes any one of the following: The random number generated by the passive IoT device itself or truncated information of the random number; After the passive Internet of Things device registers with the core network device, the first temporary identifier assigned by the core network device or truncated information of the first temporary identifier; An identifier written by the passive IoT device, wherein the written identifier is reported by the passive IoT device to a core network device, and the written identifier is used by the core network device for verification; The second temporary identifier allocated by the air interface or truncation information of the second temporary identifier.

21. The device according to claim 19 or 20, wherein The second feedback message further includes device identification indication information, wherein the device identification indication information includes at least one of the following: The starting bit of the device identification information; The length of the device identification information; Whether the device identification information supports the execution of the compression algorithm; An index based on the compression algorithm used by the device identification information; Parameter configuration of the compression algorithm executed based on the device identification information; Wherein, the compression algorithm is predefined.

22. The device according to claim 21, wherein The processor is further configured to perform the following operations: If the second feedback message carries device identification indication information, perform at least one of the following operations according to the device identification indication information: Determining device identification information carried in the first feedback message based on the start bit and the length; After compressing the device identification information based on a predefined compression algorithm, the device identification information carried in the first feedback message is determined.

23. A non-transitory readable storage medium, wherein: The non-transitory readable storage medium stores a computer program, and the computer program is used to enable a processor to execute the method according to any one of claims 1 to 10.

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