Information sending method, information receiving method, reader, a-iot device and storage medium

Abstract

The present disclosure relates to the technical field of communications, and particularly relates to an information sending method, an information receiving method, a reader, an ambient IoT (A-IoT) device and a storage medium. The information sending method comprises: determining a mapping relationship between a first resource and a second resource, wherein the first resource is used for sending a first random access message Msg1, and the second resource is used for sending a third random access message Msg3 corresponding to the Msg1 on the first resource; and sending second indication information to an A-IoT device, wherein the second indication information is used for the A-IoT device to determine whether to adjust the mapping relationship. According to the present disclosure, when an A-IoT device sends an Msg1 and an Msg3 on the basis of a mapping relationship, a reader can send second indication information to the A-IoT device so as to adjust the mapping relationship, such that the adjusted mapping relationship is more suitable for the current communication status between the reader and the A-IoT device, thereby facilitating a reduction in the communication latency.

Description

Information sending and receiving methods, reading devices, A-IoT devices and storage media Technical Field

[0001] This disclosure relates to the field of communication technology, and more specifically, to information transmission methods, information reception methods, information transmission devices, information reception devices, passive Internet of Things (A-IoT) devices, reading devices, communication systems, and storage media. Background Technology

[0002] In scenarios where network devices communicate with terminals, the terminal can act as an Ambient IoT (A-IoT) device, and the network device can act as a reader. A-IoT devices themselves do not have radio frequency transmission capabilities and need to transmit energy through backscattering. The network device can perform inventory checks on the terminals and also conduct other communication services with them. However, in scenarios where the reader communicates with A-IoT devices, some technical issues still need to be resolved. Summary of the Invention

[0003] The embodiments of this disclosure provide information sending and receiving methods, reading devices, A-IoT devices, and storage media to address technical problems in the related art.

[0004] According to a first aspect of the present disclosure, an information transmission method is proposed, executed by a reading device. The method includes: determining a mapping relationship between a first resource and a second resource according to predefined rules, or sending first indication information to an environmental IoT device, wherein the first indication information is used to indicate the mapping relationship, the first resource is used to send a first random access message Msg1, and the second resource is used to send a third random access message Msg3 corresponding to Msg1 on the first resource; and sending second indication information to the environmental IoT device, wherein the second indication information is used by the environmental IoT device to determine whether to adjust the mapping relationship.

[0005] According to a second aspect of the present disclosure, an information receiving method is proposed, executed by an environmental IoT device. The method includes: determining a mapping relationship between a first resource and a second resource according to predefined rules, or receiving first indication information sent by a reading device, wherein the first indication information is used to indicate the mapping relationship, the first resource is used to send a first random access message Msg1, and the second resource is used to send a third random access message Msg3 corresponding to Msg1 on the first resource; and receiving second indication information sent by the reading device, wherein the second indication information is used by the environmental IoT device to determine whether to adjust the mapping relationship.

[0006] According to a third aspect of the present disclosure, an information sending apparatus is provided, the apparatus comprising: a processing module configured to determine a mapping relationship between a first resource and a second resource according to predefined rules, or a sending module configured to send first indication information to an environmental IoT device, wherein the first indication information is used to indicate the mapping relationship, the first resource is used to send a first random access message Msg1, and the second resource is used to send a third random access message Msg3 corresponding to Msg1 on the first resource; the sending module is further configured to send second indication information to the environmental IoT device, wherein the second indication information is used by the environmental IoT device to determine whether to adjust the mapping relationship.

[0007] According to a fourth aspect of the present disclosure, an information receiving apparatus is provided, the apparatus comprising: a processing module configured to determine a mapping relationship between a first resource and a second resource according to predefined rules, or a receiving module configured to receive first indication information sent by a reading device, wherein the first indication information is used to indicate the mapping relationship, the first resource is used to send a first random access message Msg1, and the second resource is used to send a third random access message Msg3 corresponding to Msg1 on the first resource; the receiving module is further configured to receive second indication information sent by the reading device, wherein the second indication information is used by the environmental IoT device to determine whether to adjust the mapping relationship.

[0008] According to a fifth aspect of the present disclosure, an environmental Internet of Things (IoT) device is provided, comprising: one or more processors; wherein the environmental IoT device is configured to perform the information transmission method described in the first aspect.

[0009] According to a sixth aspect of the present disclosure, a reading device is provided, comprising: one or more processors; wherein the reading device is configured to perform the information receiving method described in the second aspect.

[0010] According to a seventh aspect of the present disclosure, a communication system is proposed, including an environmental IoT device and a reading device, wherein the environmental IoT device is configured to implement the information sending method described in the first aspect, and the reading device is configured to implement the information receiving method described in the second aspect.

[0011] According to an eighth aspect of the present disclosure, a storage medium is provided that stores instructions, which, when executed on a communication device, cause the communication device to perform the information sending method described in the first aspect and / or the information receiving method described in the second aspect.

[0012] According to a ninth aspect of the present disclosure, a program product is provided that, when executed by a communication device, causes the communication device to perform the information sending method described in the first aspect and / or the information receiving method described in the second aspect.

[0013] According to embodiments of this disclosure, when the A-IoT device sends Msg1 and Msg3 based on a mapping relationship, the reading device can send a second indication information to the A-IoT device to adjust the mapping relationship so that the adjusted mapping relationship is more suitable for the communication situation between the reading device and the A-IoT device (e.g., the reading device's reception of Msg1), which helps to reduce communication latency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1A is a schematic diagram of the architecture of a communication system according to an embodiment of this disclosure. Figure 1B is an interactive schematic diagram of communication between a reading device and an A-IoT device according to an embodiment of this disclosure. Figure 1C is a timing schematic diagram of communication between a reading device and an A-IoT device according to an embodiment of this disclosure. Figures 1D to 1F are schematic diagrams of several methods to improve D2R transmission efficiency according to embodiments of this disclosure. Figure 1G is a schematic diagram of a random access scenario according to an embodiment of this disclosure. Figure 2 is an interactive schematic diagram of an information sending method according to an embodiment of this disclosure. Figure 3A is a schematic diagram of a first resource and a second resource according to an embodiment of this disclosure. Figure 3B is a schematic diagram of another first resource and a second resource according to an embodiment of this disclosure. Figure 3C is a schematic diagram of a receiving result according to an embodiment of this disclosure. Figure 3D is a schematic diagram illustrating another receiving result according to an embodiment of the present disclosure. Figure 3E is a schematic diagram illustrating a Msg2 according to an embodiment of the present disclosure. Figure 4 is a schematic block diagram illustrating an information transmitting device according to an embodiment of the present disclosure. Figure 5 is a schematic block diagram illustrating an information receiving device according to an embodiment of the present disclosure. Figure 6A is a schematic structural diagram of a communication device proposed in an embodiment of the present disclosure. Figure 6B is a schematic structural diagram of a chip proposed in an embodiment of the present disclosure. Detailed Implementation

[0015] Embodiments of this disclosure provide information sending and receiving methods, reading devices, A-IoT devices, and storage media.

[0016] In a first aspect, embodiments of this disclosure propose an information transmission method executed by a reading device. The method includes: determining a mapping relationship between a first resource and a second resource according to predefined rules, or sending first indication information to an environmental IoT device, wherein the first indication information is used to indicate the mapping relationship, the first resource is used to send a first random access message Msg1, and the second resource is used to send a third random access message Msg3 corresponding to Msg1 on the first resource; and sending second indication information to the environmental IoT device, wherein the second indication information is used by the environmental IoT device to determine whether to adjust the mapping relationship.

[0017] In the above embodiments, when the A-IoT device sends Msg1 and Msg3 based on the mapping relationship, the reading device can send a second indication information to the A-IoT device to adjust the mapping relationship so that the adjusted mapping relationship is more suitable for the communication situation between the reading device and the A-IoT device, which helps to reduce communication latency.

[0018] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes: determining a reception result of receiving Msg1 sent by the environmental IoT device on the first resource; and generating the second indication information based on the reception result.

[0019] In conjunction with some embodiments of the first aspect, in some embodiments, generating the second indication information based on the receiving result includes: if Msg1 sent by the environmental IoT device is not received on at least one of the first resources in the mapping relationship, generating second indication information for the environmental IoT device to determine to adjust the mapping relationship; or, if Msg1 sent by the environmental IoT device is received on all the first resources in the mapping relationship, generating second indication information for the environmental IoT device to determine not to adjust the mapping relationship.

[0020] In conjunction with some embodiments of the first aspect, in some embodiments, the second resource includes at least one frequency division multiplexing resource corresponding to a first time-domain resource.

[0021] In conjunction with some embodiments of the first aspect, in some embodiments, the second indication information is carried in at least one second random access message Msg2, wherein a third resource for sending the Msg2 is provided before each of the first time-domain resources.

[0022] In conjunction with some embodiments of the first aspect, in some embodiments, the second indication information includes at least one of the following: a first sub-information for indicating whether a Msg2 exists after the Msg2 where the second indication information is located; and a second sub-information for the environmental IoT device to determine the adjusted mapping relationship.

[0023] In conjunction with some embodiments of the first aspect, in some embodiments, when the second indication information includes the second sub-information, the second indication information is used by the environmental IoT device to determine whether to adjust the mapping relationship; or, when the second indication information does not include the second sub-information, the second indication information is used by the environmental IoT device to determine whether to adjust the mapping relationship.

[0024] In conjunction with some embodiments of the first aspect, in some embodiments, the second sub-information includes: first resource information, used by the environmental IoT device to determine a first resource in the adjusted mapping relationship; and third resource information, used by the environmental IoT device to determine a third resource in the adjusted mapping relationship.

[0025] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes: determining a third resource to stop transmitting Msg2; and determining that the environmental IoT device ignores the second resource after the third resource to stop transmitting Msg2.

[0026] In conjunction with some embodiments of the first aspect, in some embodiments, the mapping relationship includes at least one of the following: when the first quantity is less than or equal to the third quantity, the first resource is mapped to a frequency division multiplexing resource corresponding to the first time domain resource; when the first quantity is greater than the third quantity, the first resource is mapped to multiple frequency division multiplexing resources corresponding to the first time domain resources; wherein, the first quantity is the number of the first resources, and the third quantity is the number of frequency division multiplexing resources corresponding to one first time domain resource.

[0027] Secondly, embodiments of this disclosure propose an information receiving method executed by an environmental IoT device. The method includes: determining a mapping relationship between a first resource and a second resource according to predefined rules, or receiving first indication information sent by a reading device, wherein the first indication information is used to indicate the mapping relationship, the first resource is used to send a first random access message Msg1, and the second resource is used to send a third random access message Msg3 corresponding to Msg1 on the first resource; and receiving second indication information sent by the reading device, wherein the second indication information is used by the environmental IoT device to determine whether to adjust the mapping relationship.

[0028] In conjunction with some embodiments of the second aspect, in some embodiments, the second resource includes at least one frequency division multiplexing resource corresponding to a first time-domain resource.

[0029] In conjunction with some embodiments of the second aspect, in some embodiments, the second indication information is carried in at least one second random access message Msg2, wherein a third resource for sending the Msg2 is provided before each of the first time-domain resources.

[0030] In conjunction with some embodiments of the second aspect, in some embodiments, the second indication information includes at least one of the following: a first sub-information for indicating whether a Msg2 exists after the Msg2 where the second indication information is located; and a second sub-information for the environmental IoT device to determine the adjusted mapping relationship.

[0031] In conjunction with some embodiments of the second aspect, in some embodiments, when the second indication information includes the second sub-information, the second indication information is used by the environmental IoT device to determine whether to adjust the mapping relationship; or, when the second indication information does not include the second sub-information, the second indication information is used by the environmental IoT device to determine whether to adjust the mapping relationship.

[0032] In conjunction with some embodiments of the second aspect, in some embodiments, the second sub-information includes: first resource information, used by the environmental IoT device to determine a first resource in the adjusted mapping relationship; and third resource information, used by the environmental IoT device to determine a third resource in the adjusted mapping relationship.

[0033] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes: determining that the reading device stops sending a third resource of Msg2; ignoring the second resource after the third resource of Msg2 has been stopped.

[0034] In conjunction with some embodiments of the second aspect, in some embodiments, the mapping relationship includes at least one of the following: when the first quantity is less than or equal to the third quantity, the first resource is mapped to a frequency division multiplexing resource corresponding to the first time domain resource; when the first quantity is greater than the third quantity, the first resource is mapped to multiple frequency division multiplexing resources corresponding to the first time domain resources; wherein, the first quantity is the number of the first resources, and the third quantity is the number of frequency division multiplexing resources corresponding to one first time domain resource.

[0035] Thirdly, embodiments of this disclosure propose an information transmission device, the device comprising: a processing module configured to determine a mapping relationship between a first resource and a second resource according to predefined rules, or a transmission module configured to send first indication information to an environmental IoT device, wherein the first indication information is used to indicate the mapping relationship, the first resource is used to send a first random access message Msg1, and the second resource is used to send a third random access message Msg3 corresponding to Msg1 on the first resource; the transmission module is further configured to send second indication information to the environmental IoT device, wherein the second indication information is used by the environmental IoT device to determine whether to adjust the mapping relationship.

[0036] Fourthly, embodiments of this disclosure provide an information receiving device, the device comprising: a processing module configured to determine a mapping relationship between a first resource and a second resource according to predefined rules, or a receiving module configured to receive first indication information sent by a reading device, wherein the first indication information is used to indicate the mapping relationship, the first resource is used to send a first random access message Msg1, and the second resource is used to send a third random access message Msg3 corresponding to Msg1 on the first resource; the receiving module is further configured to receive second indication information sent by the reading device, wherein the second indication information is used by the environmental IoT device to determine whether to adjust the mapping relationship.

[0037] Fifthly, embodiments of this disclosure provide an environmental IoT device, comprising: one or more processors; wherein the environmental IoT device is configured to perform the information transmission method described in any one of the first aspects and optional embodiments thereof.

[0038] In a sixth aspect, embodiments of this disclosure provide a reading device, comprising: one or more processors; wherein the reading device is configured to perform the information receiving method according to any one of the second aspect and optional embodiments thereof.

[0039] In a seventh aspect, embodiments of this disclosure provide a communication system including an environmental IoT device and a reading device, wherein the environmental IoT device is configured to implement the information transmission method of any one of the optional embodiments of the first aspect, and the reading device is configured to implement the information reception method of any one of the optional embodiments of the second aspect.

[0040] Eighthly, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the information transmission method of any one of the first aspect and optional embodiments of the first aspect, and / or the information reception method of any one of the second aspect and optional embodiments of the second aspect.

[0041] Ninthly, embodiments of this disclosure provide a program product that, when executed by a communication device, causes the communication device to perform the information transmission method described in any one of the first aspect and optional embodiments of the first aspect, and / or the information reception method described in any one of the second aspect and optional embodiments of the second aspect.

[0042] In a tenth aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the information sending method described in any one of the first aspect and optional embodiments of the first aspect, and / or the information receiving method described in any one of the second aspect and optional embodiments of the second aspect.

[0043] It is understood that the aforementioned information sending and receiving devices, communication equipment, communication systems, storage media, program products, and computer programs are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects that can be achieved can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0044] This disclosure provides information transmission and reception methods, reading devices, A-IoT devices, and storage media. In some embodiments, the terms "information transmission and reception method" and "information processing method" and "communication method" can be used interchangeably; the terms "information transmission and reception device" and "information processing device" and "communication device" can be used interchangeably; and the terms "information processing system" and "communication system" can be used interchangeably.

[0045] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0046] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0047] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0048] In the embodiments of this disclosure, unless otherwise stated, elements expressed in the singular, such as “a,” “an,” “the,” “the,” “the,” “the,” “the,” “the,” “this,” etc., may mean “one and only one,” or “one or more,” “at least one,” etc.

[0049] For example, when using articles such as "a", "an", and "the" in translation, the noun following the article can be understood as either a singular or a plural form.

[0050] In the embodiments disclosed herein, "multiple" refers to two or more.

[0051] In some embodiments, the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0052] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of B); in some embodiments, B (execute B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, C, etc.

[0053] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execution of A regardless of B); in some embodiments, B (execution of B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, C, etc.

[0054] The prefixes such as "first" and "second" in the embodiments of this disclosure are only for distinguishing different descriptive objects and do not constitute restrictions on the position, order, priority, number or content of the descriptive objects. For the description of the descriptive objects, please refer to the description in the claims or the context of the embodiments. The use of prefixes should not constitute unnecessary restrictions.

[0055] For example, if the descriptive object is "field," then the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is "level," then the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers; there can be one or more. For example, in "first device," the number of "devices" can be one or more. In addition, objects modified by different prefixes can be the same or different. For example, if the descriptive object is "device," then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the descriptive object is "information," then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0056] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0057] In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably.

[0058] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.

[0059] In some embodiments, devices, etc., can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as “device”, “equipment”, “circuit”, “network element”, “node”, “function”, “unit”, “section”, “system”, “network”, “chip”, “chip system”, “entity”, and “subject” can be used interchangeably.

[0060] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).

[0061] In some embodiments, the terms "access network device (AN device)," "radio access network device (RAN device)," "base station (BS)," "radio base station," "fixed station," "node," "access point," "transmission point (TP)," "reception point (RP)," "transmission / reception point (TRP)," "panel," "antenna panel," "antenna array," "cell," "macro cell," "small cell," "femto cell," "pico cell," "sector," "cell group," "serving cell," "carrier," "component carrier," and "bandwidth part (BWP)" can be used interchangeably.

[0062] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", "subscriber station", "mobile unit", "subscriber unit", "wireless unit", "remote unit", "mobile device", "wireless device", "wireless communication device", "remote device", "mobile subscriber station", "access terminal", "mobile terminal", "wireless terminal", "remote terminal", "handset", "user agent", "mobile client", and "client" can be used interchangeably.

[0063] In some embodiments, access network devices, core network devices, or network devices can be replaced by terminals. For example, embodiments of this disclosure can also be applied to structures where communication between access network devices, core network devices, or network devices and terminals is replaced by communication between multiple terminals (e.g., device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, the structure can also be configured such that the terminal has all or part of the functions of the access network device. Furthermore, terms such as "uplink" and "downlink" can be replaced with terms corresponding to communication between terminals (e.g., "sidelink"). For example, uplink channel, downlink channel, etc., can be replaced with sidelink channel, and uplink link, downlink, etc., can be replaced with sidelink link.

[0064] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, core network device, or network device may also be configured to have all or some of the functions of the terminal.

[0065] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0066] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0067] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0068] Figure 1A is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0069] As shown in Figure 1A, the communication system 100 includes a passive IoT device 101 and a reading device 102. For example, the passive IoT device may include a terminal, and the reading device may include a network device 102, or the reading device may also include a terminal (e.g., an NR terminal or a 6G mobile communication terminal). The network device includes at least one of the following: an access network device or a core network device.

[0070] In some embodiments, terminal 101 includes, but is not limited to, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, tablet computer, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home.

[0071] In some embodiments, the access network device is, for example, a node or device that connects a terminal to a wireless network. The access network device may include, but is not limited to, at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation eNB (ng-eNB), next-generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), radio backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a Wi-Fi system.

[0072] In some embodiments, a core network device may be a single device comprising one or more network elements, or it may be multiple devices or a group of devices, each comprising all or part of the aforementioned one or more network elements. Network elements may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), or a Next Generation Core (NGC).

[0073] In some embodiments, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.

[0074] In some embodiments, the access network device may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. The CU-DU structure can separate the protocol layer of the access network device. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU and centrally controlled by the CU. However, this is not the only possibility.

[0075] It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions proposed in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions proposed in this disclosure are also applicable to similar technical problems.

[0076] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1A, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1A are illustrative. The communication system may include all or some of the main bodies in FIG1A, or it may include other main bodies outside of FIG1A. The number and form of each main body are arbitrary. Each main body may be physical or virtual. The connection relationship between the main bodies is illustrative. The main bodies may not be connected or may be connected. The connection can be in any way, it can be a direct connection or an indirect connection, it can be a wired connection or a wireless connection.

[0077] The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other communication methods, and next-generation systems built upon them, etc. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0078] Figure 1B is a schematic diagram illustrating the interaction between a reading device and an A-IoT device according to an embodiment of the present disclosure.

[0079] As shown in Figure 1B, before performing inventory operations with A-IoT devices, the reading device can send a Select command to the A-IoT devices to select one or more A-IoT devices.

[0080] To perform inventory checks on A-IoT devices, a query command can be sent to the A-IoT device.

[0081] After receiving a query command, the A-IoT device can send a first random number sequence, such as a 16-bit random number sequence (RN16), to the reading device.

[0082] After receiving the RN16 sequence sent by the A-IoT device, if the A-IoT device is allowed to access, the reading device can send an acknowledgment message to the A-IoT device, such as a response message for the RN sequence.

[0083] Once an A-IoT device receives confirmation, it can confirm successful connection and then send data to the reading device, such as sensing information or the device ID of the A-IoT device.

[0084] The reading device can also send repeatedly transmitted query commands (QueryRep) to A-IoT devices.

[0085] For example, selection commands, query commands, confirmation messages, and retransmitted query commands sent by the reading device to the A-IoT device can be carried through the PRDCH (Physical Reader to Device Channel, A-IoT Physical Downlink Channel).

[0086] For example, RN16 sequences and data sent by A-IoT devices to reading devices can be carried through PDRCH (Physical Device to Reader Channel, A-IoT Physical Uplink Channel).

[0087] For example, the communication process between the reading device and the A-IoT device described above can be viewed as the A-IoT device accessing the reading device through a random access procedure. In this procedure, the RN16 sequence can be used as Msg1, the acknowledgment information as Msg2, and the data as Msg3.

[0088] Figure 1C is a timing diagram illustrating communication between a reading device and an A-IoT device according to an embodiment of the present disclosure.

[0089] As shown in Figure 1C, the selection command sent by the reading device to the A-IoT device can be regarded as a paging message for paging the A-IoT device. Therefore, the selection command can also be called A-IoT paging, and the time range between two adjacent A-IoT paging messages can be called the paging round.

[0090] After sending a selection command, the reading device can send multiple rounds of query commands to the terminal. Each round of query commands can contain one query command and multiple repeatedly transmitted query commands. The time range corresponding to one round of query commands can be considered as one round of access for the A-IoT device to the access reading device, hence it can be called an Access Round. The query command can serve as the starting trigger command for the Access Round, hence it can be called an R2D Round Trigger command. In R2D, R represents the reading device, and D is an abbreviation for Device, representing the A-IoT device.

[0091] In a round of query commands, after each query command is sent, the A-IoT device may initiate random access to the reading device. Therefore, at least one access occasion can be defined between adjacent query commands in a round of query commands. The access occasion can be used for the A-IoT device to send information such as Msg1 and Msg3 to the reading device. Since each query command in the round of query commands can trigger the A-IoT device to initiate random access to the reading device, it can be called an R2D trigger command.

[0092] In some embodiments, the reading device can perform an inventory of A-IoT devices. Before performing the inventory, the reading device can first perform a selection operation, such as selecting one or more A-IoT devices from a group of A-IoT devices (e.g., A-IoT devices in the cell of the reading device) using a select command. Then, for the selected A-IoT devices, the encryption and authentication types of the A-IoT devices can be queried using a challenge command.

[0093] In some embodiments, the reading device can perform an inventory of A-IoT devices. The inventory process begins when the reading device sends a query command to an A-IoT device and ends when the reading device sends another query command, or a selection command or challenge command, to the A-IoT device. For example, the reading device can send query commands to multiple A-IoT devices to start the first round of inventory. When a second query command is sent to an A-IoT device, the first round of inventory begins, and the second round of inventory begins.

[0094] In some embodiments, during the first round of inventory counting, the A-IoT device may repeatedly send query commands (QueryRep), in which case the first round of inventory counting does not end.

[0095] For example, after receiving a query command, an A-IoT device can enter an arbitrate state, which can be considered a holding state. The query command carries an indication value, such as a Q value. Based on the Q value, the A-IoT device can determine a counter value and decrement the counter value by 1 each time it receives a QueryRep. When the counter value reaches 0, the A-IoT device transitions to a response state and sends a sequence, such as a 16-bit random number sequence (RN16), to the reading device via backscattering.

[0096] After receiving the RN16 sequence sent by the A-IoT device, if the reading device allows the A-IoT device to access, it can send an acknowledgment (ACK) to the A-IoT device. Upon receiving the acknowledgment, the A-IoT device can confirm successful access. Otherwise, if the A-IoT device receives an invalid acknowledgment, or an acknowledgment with an erroneous RN16, or if it does not receive an acknowledgment within a certain period (e.g., T2, which can be agreed upon by the protocol or indicated by the network), then it can be determined that the access has failed, and the A-IoT device returns to the adjudication state.

[0097] In some embodiments, the A-IoT device can determine the access occasion based on the QueryRep, such as the time interval between two adjacent QueryRep, which can be used for the A-IoT device to access the reading device, such as sending the aforementioned RN16 sequence to the reading device. For example, the access process can be implemented based on random access.

[0098] In some embodiments, after confirming successful access, the A-IoT device can send the sensing information obtained by the A-IoT device, the device ID of the A-IoT device, etc. to the reading device.

[0099] Figures 1D to 1F are schematic diagrams illustrating several methods for improving D2R transmission efficiency according to embodiments of the present disclosure.

[0100] In some embodiments, to improve inventory efficiency, technologies such as FDM (Frequency-division multiplexing) and TDM (Time-division multiplexing) can be used for D2R transmission (e.g., A-IoT devices to reading equipment rooms Msg1 and Msg3).

[0101] As shown in Figure 1D, FDM of multiple A-IoT devices can be supported in the same access time. Each A-IoT device can transmit PDRCH (Physical D2R Channel) at different frequency points based on the coding efficiency of linear coding (e.g., Manchester coding) and different backscatter link frequencies (BLF).

[0102] For example, in Figure 1D, four frequency domain resources can be determined based on different coding efficiencies M and different BLFs. For example, frequency domain resources can be traditional resources, such as resource blocks (RBs) and resource elements (REs). Alternatively, frequency domain resources can be operating frequencies (such as the BLF used for communication between A-IoT devices and reading devices, also known as the working BLF or the backscatter link operating frequency), or they can be operating frequency bands, which can be identified in the form of n+ numbers.

[0103] Specifically, for BLF#0, when M=1, the corresponding frequency domain resource is the frequency domain resource with index 1; for BLF#1, when M=2, the corresponding frequency domain resource is the frequency domain resource with index 2; for BLF#3, when M=4, the corresponding frequency domain resource is the frequency domain resource with index 3; and for BLF#4, when M=8, the corresponding frequency domain resource is the frequency domain resource with index 4.

[0104] As shown in Figure 1E, D2R transmission based on TDM can be performed in sub-occasions within the same access time.

[0105] For example, in Figure 1E, the time-domain resources (e.g., a slot) between adjacent QueryRep are considered as an access opportunity. Multiple sub-opportunities can be set within an access opportunity, and the A-IoT device can send RN16 to the reading device in each sub-opportunity. This approach can also increase transmission efficiency because the number of QueryRep corresponding to each message sent by the A-IoT device to the reading device is reduced.

[0106] As shown in Figure 1F, FDM and TDM can be implemented together. For example, in Figure 1F, the horizontal axis is the time domain and the vertical axis is the frequency domain. Four sub-times can be set in the time domain resources between adjacent QueryRep, and four frequency domain resources can be set in the frequency domain resources between adjacent QueryRep, so there are a total of 16 sub-times, namely RO#0 to RO#15.

[0107] Figure 1G is a schematic diagram illustrating a random access scenario according to an embodiment of the present disclosure.

[0108] As shown in Figure 1G, taking the D2R process based on TDM as an example, there can be 3 sub-times in one access time, namely RO#A, RO#B, and RO#C.

[0109] It should be noted that sub-times can be relative resources. For example, the reference position is the end position of the most recently received information from the reading device. In an access time, the end position of the most recently received QueryRep before the access time can be used as reference position #1. After reference position #1, there are 3 sub-times for A-IoT devices to send Msg1.

[0110] Within the access timing, confirmation information sent by the reading device can also be received. The end position of the confirmation information can be used as reference position #2. After reference position #2, there are also 3 sub-timings for A-IoT devices to send Msg3. The 3 sub-timings after the reference position can be equal. For example, the time domain lengths of RO#A, RO#B, and RO#C after reference position #1 and reference position #2 are all equal.

[0111] A-IoT devices are passive devices, and different A-IoT devices generally do not coordinate the sub-time slots they occupy. It's possible for multiple A-IoT devices to occupy the same sub-time slot to send random access messages to the reading device. For example, if three A-IoT devices all use RO#C in Figure 1G to send random access messages, RO#A and RO#B will be wasted. Especially for the sub-time slot used to send Msg3, since Msg3 can carry data, its duration is relatively long. Wasting the sub-time slot corresponding to Msg3 will cause even more severe latency.

[0112] As shown in Figure 1G, a single access opportunity can have multiple sub-opportunities (e.g., a sub-opportunity can be called a first resource) for sending Msg1, and multiple sub-opportunities (e.g., a sub-opportunity can be called a second resource) for sending Msg3. Therefore, a mapping relationship can be constructed for multiple first resources and multiple second resources. The A-IoT device can determine the first resource used to send Msg1 and the second resource used to send Msg3 based on the mapping relationship. For example, the first resource and the second resource can include one or more resource units, such as RB, RE, etc., which are not limited in this disclosure.

[0113] In some cases, the reading device may not receive Msg1 on some primary resources (e.g., the A-IoT device does not send Msg1, or the A-IoT device sends Msg1 but the reading device fails to receive it). If the A-IoT device still sends Msg3 according to the mapping relationship, it may cause unnecessary delays.

[0114] Figure 2 is an interactive schematic diagram of an information sending method according to an embodiment of the present disclosure.

[0115] For example, the information transmission method can be executed by a reading device. For example, the reading device may include a network device, wherein the network device includes at least one of the following: an access network device and a core network device.

[0116] The reading device can communicate with A-IoT devices (e.g., environmental IoT devices, environment-based IoT devices, passive IoT devices) so that the reading device and the A-IoT device can have a consistent understanding of the resources used for the transmission of information (e.g., Msg3). For example, an A-IoT device can include a terminal, such as an A-IoT device that can also be called a tag.

[0117] As shown in Figure 2, the resource determination method may include the following steps:

[0118] In step S201, the reading device sends first indication information to the A-IoT device.

[0119] In some embodiments, the first indication information is used to indicate the mapping relationship between the first resource and the second resource.

[0120] In some embodiments, the first resource is used for the A-IoT device to send Msg1, and the second resource is used for the A-IoT device to send the third random access message Msg3 corresponding to Msg1 on the first resource.

[0121] In some embodiments, the reading device can determine the mapping relationship according to predefined rules, and the A-IoT device can also determine the mapping relationship according to predefined rules. In this case, step S201 can be omitted.

[0122] In step S201, a second instruction message is sent to the A-IoT device.

[0123] In some embodiments, the second indication information is used by the environmental IoT device to determine whether to adjust or update the mapping relationship.

[0124] In some embodiments, the reading device can determine the first resource where the receiving Msg1 is located and the second resource where the receiving Msg3 is located based on the mapping relationship. The A-IoT device can determine the first resource where the sending Msg1 is located and the second resource where the sending Msg3 is located based on the mapping relationship.

[0125] In some embodiments, the second resource includes at least one frequency division multiplexing (FDM) resource corresponding to the first time-domain resource.

[0126] Based on the preceding analysis of Figure 1G, we know that, on the one hand, the length of each sub-time point needs to be set based on Msg3, resulting in a relatively large length of sub-time points in the time domain; on the other hand, there is some waste of sub-time points. For these two reasons, the overall latency of communication between the reading device and the A-IoT device (e.g., inventory counting) is relatively large.

[0127] Therefore, the above problems can be alleviated by configuring the first and second resources as FDM resources. However, the number of A-IoT devices that can support FDM based on linear coding is limited, for example, up to 4. This is because FDM in more devices would lead to a smaller chip duration, resulting in reduced demodulation performance, and there may not be enough frequency domain resources to support FDM in more devices.

[0128] Since Msg3 has a longer time domain than Msg1, the second resource can be configured as an FDM resource to more effectively reduce latency. Of course, within the performance limits, the first resource can also be configured as an FDM resource, and this disclosure does not restrict this.

[0129] It should be noted that in the mapping relationship between the first resource and the second resource described in the embodiments of this disclosure, the second resource is not limited to FDM resources, but can also be other types of resources, and this disclosure does not limit this. For the sake of convenience, the following embodiments are mainly described using FDM resources as the second resource.

[0130] In some embodiments, the mapping relationship includes at least one of the following:

[0131] When the first quantity is less than or equal to the third quantity, the first resource is mapped to a frequency division multiplexing resource corresponding to a first time domain resource;

[0132] When the first quantity is greater than the third quantity, the first resource is mapped to frequency division multiplexing resources corresponding to multiple first time domain resources;

[0133] Wherein, the first quantity is the number of first resources, and the third quantity is the number of frequency division multiplexing resources corresponding to one first time domain resource.

[0134] Figure 3A is a schematic diagram illustrating one first resource and a second resource according to an embodiment of the present disclosure. Figure 3B is a schematic diagram illustrating another first resource and a second resource according to an embodiment of the present disclosure.

[0135] In some embodiments, the mapping relationship between the first resource and the second resource can be based on the index representation of the first resource and the second resource.

[0136] For example, the second resource includes multiple FDM resources corresponding to the first time-domain resources. As shown in Figures 3A and 3B, the second resource includes two FDM resources corresponding to the first time-domain resources, and each FDM resource corresponding to a first time-domain resource may include two resources. The length of the first time-domain resources is not limited in this disclosure; for example, it can be configured by the reading device based on Msg3 or determined based on predefined rules.

[0137] For example, the first resource can be denoted as R. msg,1 (i), where i is the index of the first resource, 0≤i≤N-1, and N is the quantity of the first resource, for example, called the first quantity. For example, the first resources can be sorted according to time domain order to determine the index of the first resource; or, the first resources can be sorted according to time domain first, then frequency domain (e.g., small frequency shift factor value) to determine the index of the first resource; or, the first resources can be sorted according to frequency domain first, then time domain. For example, as shown in Figures 3A and 3B, the first resources can be sorted according to frequency domain first, then time domain to determine the index of the first resource.

[0138] For example, the second resource can be denoted as R. msg,3 (x,y), where x is the index of the first time-domain resource and y is the index of the FDM resource corresponding to the first time-domain resource.

[0139] For example, if the first quantity is less than or equal to the number of second resources corresponding to one first time domain resource (e.g., referred to as the third quantity), as shown in Figure 3A, the first quantity is 2 and the third quantity is also 2. Then, the second resource corresponding to one first time domain resource is sufficient to send Msg1 corresponding to Msg3 in all first resources.

[0140] In this case, the mapping relationship between the first resource and the second resource can be: R msg,1 (i)=R msg,3 (0,i), where R msg,3 (0,i) represents the i-th FDM resource corresponding to the first time-domain resource.

[0141] For example, the first quantity is greater than the third quantity.

[0142] In this scenario, a second resource corresponding to one first time-domain resource is insufficient to transmit Msg1 corresponding to Msg3 in all first resources. Therefore, it is necessary to map the first resource to multiple FDM resources corresponding to the first time-domain resources. For example, the mapping relationship between the first resource and the second resource can be: in, This indicates rounding down the value of i / M, mod indicates modulo operation, and M indicates the third quantity.

[0143] For example, in Figure 3B, M = 2, the first quantity is 4, and the first quantity is greater than the third quantity M. This can be determined according to... Once the mapping relationship between the first resource and the second resource is determined, the mapping relationship between the first resource and the second resource can be as follows:

[0144] That is, the first resource is mapped to the first FDM resource corresponding to the first time domain resource;

[0145] That is, the second first resource is mapped to the second FDM resource corresponding to the first time domain resource;

[0146] That is, the third first resource is mapped to the first FDM resource corresponding to the second time domain resource;

[0147] That is, the fourth first resource is mapped to the second FDM resource corresponding to the second time domain resource.

[0148] It should be noted that this disclosure does not restrict the configuration method of the first resource. For example, it can be configured based on TDM or FDM.

[0149] In some embodiments, the first resource may be determined based on predefined rules or configured by the reading device. For example, if the reading device is a network device, the reading device may indicate the first resource through a paging message, such as indicating the start time of the first resource. For example, the start time may be a relative time, such as the end time of the most recent R2D trigger signal.

[0150] Given that the first resource is known, the reading device can determine the corresponding third resource based on the first resource and the mapping relationship. Then, after receiving Msg1 on the first resource, it can receive Msg3 corresponding to Msg1 on the corresponding third resource.

[0151] Given that the first resource is known, the A-IoT device can determine the corresponding third resource based on the first resource and the mapping relationship. Then, after sending Msg1 on the first resource, it can send Msg3 corresponding to Msg1 on the corresponding third resource.

[0152] However, the problem is that in some situations, the reading device may not receive Msg1 on some primary resources (for example, the A-IoT device does not send Msg1, or the A-IoT device sends Msg1, but the reading device does not receive it successfully). If the A-IoT device still sends Msg3 according to the mapping relationship, it may cause unnecessary delays.

[0153] Therefore, according to the embodiments of this disclosure, when the A-IoT device sends Msg1 and Msg3 based on the mapping relationship, the reading device can send a second indication information to the A-IoT device to adjust or update the mapping relationship so that the adjusted or updated mapping relationship is more suitable for the communication situation between the reading device and the A-IoT device (e.g., the reading device's reception of Msg1), which helps to reduce communication latency.

[0154] It should be noted that the reading device may adjust or update the mapping relationship for various reasons, including but not limited to adjusting or updating the mapping relationship based on implementation, based on the reception status of Msg1, and based on requests from A-IoT devices. This disclosure does not limit this. The following embodiments mainly focus on the reading device adjusting or updating the mapping relationship based on the reception status of Msg1, and exemplarily illustrate the technical solution of this disclosure.

[0155] In some embodiments, the reading device may determine the reception result of Msg1 sent by the environmental IoT device on the first resource; and then generate second indication information based on the reception result.

[0156] In some embodiments, if the reading device receives Msg1 from the A-IoT device on all first resources in the mapping relationship, then the reading device generates a second indication message for the environmental IoT device to determine whether to adjust or update the mapping relationship (or if the second indication message is not generated, then the A-IoT device has not received the second indication message, and may default to not adjusting or updating the mapping relationship).

[0157] For example, taking Figure 3B as an example, if the reading device receives Msg1 on all four first resources, then it needs to receive Msg3 on the second resource corresponding to each first resource. Therefore, there is no need to adjust or update the mapping relationship.

[0158] In some embodiments, if the reading device does not receive Msg1 from the A-IoT device on at least one first resource in the mapping relationship, the reading device may generate second indication information for the environmental IoT device to determine whether to adjust or update the mapping relationship.

[0159] Figure 3C is a schematic diagram illustrating a receiving result according to an embodiment of the present disclosure.

[0160] As shown in Figure 3C, based on the mapping relationship shown in Figure 3B, the reading device in R msg,1 (0) and R msg,1 (1) Msg1 was received (e.g., from different or the same A-IoT device), but in R msg,1 (2) and R msg,1 (3) Msg1 was not received.

[0161] In this case, R msg,1 (2) and R msg,1 (3) The Msg3 on the corresponding second resource should not be received. For example, the A-IoT device will not send Msg3 on the corresponding second resource, or even if the A-IoT device sends Msg3 on the corresponding second resource, the random access process cannot be successfully completed because the reading device has not received Msg1. Therefore, there is no need to perform the receiving operation.

[0162] If the reading device continues to communicate with the A-IoT device according to the original mapping, then in R msg,3 (1,0) and R msg,3 No communication will occur on the time domain resource corresponding to (1,1) (that is, the second first time domain resource), which will be wasted and cause unnecessary delay.

[0163] Therefore, in this case, the reading device can adjust or update the mapping relationship through the second indication information, for example, adjusting or updating the mapping relationship to R. msg,1 (0) corresponds to R msg,3(0,0), R msg,1 (1) Corresponding to R msg,3 (0,1), but R msg,1 (2) and R msg,1 (3) Does not correspond to the second resource. Therefore, reading the communication between the device and the A-IoT device based on the adjusted or updated mapping relationship will ignore (skip) R. msg,3 (1,0) and R msg,3 (1,1), the reading device and the A-IoT device can be in R msg,3 (1,0) and R msg,3 Other communication operations can be performed on the time-domain resource corresponding to (1,1) (e.g., the second first time-domain resource), or the subsequent R2D trigger signal can be brought forward. This is beneficial for reducing communication delay.

[0164] Figure 3D is a schematic diagram illustrating another receiving result according to an embodiment of the present disclosure.

[0165] It should be noted that the received result is not limited to the embodiment shown in Figure 3C, but may also include other air inlet light, such as that shown in Figure 3D, where the reading device is in R msg,1 (0) and R msg,1 (3) Msg1 was received on the device (e.g., from different or the same A-IoT device), but in R msg,1 (1) and R msg,1 (2) Msg1 was not received.

[0166] In this case, the reading device can adjust or update the mapping relationship using the second indication information, for example, adjusting or updating the mapping relationship to R. msg,1 (0) corresponds to R msg,3 (0,0), R msg,1 (3) Corresponding to R msg,3 (0,1), R msg,1 (1) and R msg,1 (2) Does not correspond to the second resource. Therefore, reading the communication between the device and the A-IoT device based on the adjusted or updated mapping relationship will ignore (skip) R. msg,3 (1,0) and R msg,3 (1,1), the reading device and the A-IoT device can be in R msg,3 (1,0) and R msg,3 Other communication operations can be performed on the time-domain resource corresponding to (1,1) (e.g., the second first time-domain resource), or the subsequent R2D trigger signal can be brought forward. This is beneficial for reducing communication delay.

[0167] In some embodiments, the second indication information is carried in at least one second random access message Msg2. For example, a third resource for sending Msg2 is provided before each first time domain resource.

[0168] For example, multiple first resources can be configured for multiple A-IoT devices (one of which can be configured with one or more first resources), and multiple second resources corresponding to multiple first resources can also be configured for multiple A-IoT devices (one of which can be configured with one or more second resources).

[0169] The reading device sends a second indication message to an A-IoT device to adjust or update the mapping relationship configured for that A-IoT device. When the reading device needs to adjust or update the mapping relationship of other A-IoT devices, it can send the second indication message to those other A-IoT devices.

[0170] For example, when the second indication information is carried in Msg2, the reading device can send Msg2 to different A-IoT devices respectively to indicate whether the different A-IoT devices need to adjust or update their respective mapping relationships. Since the second resource configured for different A-IoT devices can correspond to different first time-domain resources, a third resource for sending Msg2 can be set between each first time-domain resource. This ensures that A-IoT devices configured with the second resource on different first time-domain resources can determine whether to adjust or update the mapping relationship by receiving Msg2 before the second resource corresponds to the first time-domain resource.

[0171] For example, when the second indication information is carried in Msg2, the reading device can send multiple Msg2s to the same A-IoT device (e.g., the A-IoT is configured with multiple second resources) to indicate whether the mapping relationship of the second resources corresponding to each first time domain resource needs to be adjusted or updated.

[0172] It should be noted that the third resource used to send Msg2 can be determined based on predefined rules and can be indicated by the reading device. For example, it can be based on at least one characteristic such as the starting position, the ending position, or the time window (which can also be called the length). For example, the starting position can be the ending position of Msg1 or the ending position of the R2D trigger signal; for example, the time window can be indicated by the R2D trigger message, and the R2D trigger message can indicate the same or different time windows for multiple A-IoT devices.

[0173] In some embodiments, the second indication information includes at least one of the following:

[0174] The first sub-information is used to indicate whether there is a Msg2 after the Msg2 where the second indication information is located;

[0175] The second piece of information is used by environmental IoT devices to determine the adjusted or updated mapping relationship.

[0176] For example, when the reading device sends multiple Msg2s to the same A-IoT device, the second indication information may include the first sub-information to indicate whether there is a Msg2 after the Msg2 where the second indication information is located. For example, the first sub-information may occupy 1 bit. For example, a value of 1 can indicate that there is a Msg2 after the Msg2 where the second indication information is located, and a value of 0 can indicate that there is no Msg2 after the Msg2 where the second indication information is located.

[0177] For example, the reading device can use the second sub-information in the second indication information to instruct the A-IoT device on the adjusted or updated mapping relationship.

[0178] In some embodiments, the second indication information can implicitly indicate the adjusted or updated mapping relationship of the A-IoT device through the second sub-information. For example, if the second indication information does not include the second sub-information, the second indication information is used by the A-IoT device to determine whether to adjust or update the mapping relationship.

[0179] In some embodiments, the second indication information can explicitly indicate the adjusted or updated mapping relationship of the A-IoT device through the second sub-information.

[0180] For example, the second sub-information includes:

[0181] First resource information is used by environmental IoT devices to determine the first resource in the adjusted or updated mapping relationship;

[0182] Third resource information is used by environmental IoT devices to determine the third resource in the adjusted or updated mapping relationship.

[0183] Figure 3E is a schematic diagram of a Msg2 according to an embodiment of the present disclosure.

[0184] As shown in Figure 3E, for example, based on the embodiment shown in Figure 3D, the first resource information may include, for example, the index of the first resource, such as Resource index for #0 (i.e., R). msg,1 (0)) and Resource index for #3 (i.e., R) msg,1 (3)); The first resource information can be called the response to the index of the first resource, such as Response for #0 (that is, R). msg,3 (0,0)) and Response for#3 (i.e., R) msg,3(0,1)).

[0185] Based on this, A-IoT devices can determine the adjusted or updated mapping relationship as R. msg,1 (0) Mapped to R msg,3 (0,0), R msg,1 (3) Mapping to R msg,3 (0,1). Then in R... msg,1 After sending Msg1 on (0), you can use R msg,3 Send the corresponding Msg3 on (0,0); in R msg,1 (3) After sending Msg1, you can use R msg,3 Send the corresponding Msg3 on (0,1).

[0186] In some embodiments, the reading device may stop sending Msg2 on some resources. For example, if it is determined based on the adjusted or updated mapping that the FDM resources on certain first resources are no longer needed to transmit Msg3, then there is no need to respond via Msg2 (e.g., there is no need to indicate the resources for Msg3 after the adjusted or updated mapping). Therefore, the third resources set before these first resources may stop sending Msg2.

[0187] In this situation, the reading device can determine to stop sending the third resource of Msg2; thus, it can determine that the environmental IoT device ignores the second resource after stopping the transmission of the third resource of Msg2. The A-IoT device stops sending Msg3 after reading the first time-domain resource following the cessation of transmission of the third resource of Msg2.

[0188] For example, as shown in Figure 3E, third resources are configured before the first first time-domain resource and before the second first time-domain resource, respectively. Due to the adjusted or updated mapping relationship, the two second resources R corresponding to the second first time-domain resource... msg,3 (1,0) and R msg,3 (1,1) is not used to send Msg3. Therefore, the reading device stops sending Msg2 on the third resource before the second first time domain resource. For example, it can be indicated by Msg2 before the first first time domain resource that there is no Msg2 after that Msg2, so that the A-IoT device can determine that it stops sending Msg2 on the third resource before the second first time domain resource. Then the A-IoT device can ignore the two second resources R corresponding to the second first time domain resource. msg,3 (1,0) and R msg,3 (1,1).

[0189] It should be noted that when the second indication information indicates that there is no Msg2 after Msg2 where the second indication information is located, and the second indication information does not respond to Msg1, for example, it does not configure the corresponding Msg3 resource for Msg1, or it does not indicate the first resource information and the third resource information through the second sub-information, then the A-IoT device can determine that the random access has failed, thereby triggering the re-access process.

[0190] The communication method involved in the embodiments of this disclosure may include at least one of steps S201 to S202. For example, step S201 may be implemented as a standalone embodiment, step S202 may be implemented as a standalone embodiment, and step S201+S202 may be implemented as a standalone embodiment, but is not limited thereto.

[0191] In some embodiments, steps S201 and S202 may be performed in an alternate order or simultaneously.

[0192] In some embodiments, step S201 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0193] In some embodiments, step S202 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0194] In some embodiments, other optional implementations may be described before or after the specification corresponding to FIG2.

[0195] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0196] In some embodiments, terms such as “moment,” “point in time,” “time,” and “time location” can be used interchangeably, as can terms such as “duration,” “segment,” “time window,” “window,” and “time.”

[0197] In some embodiments, the terms "component carrier (CC)," "cell," "frequency carrier," and "carrier frequency" can be used interchangeably.

[0198] In some embodiments, the terms “resource block (RB)”, “physical resource block (PRB)”, “sub-carrier group (SCG)”, “resource element group (REG)”, “PRB pair”, “RB pair”, “resource element (RE)”, and “sub-carrier” can be used interchangeably.

[0199] In some embodiments, the terms “frame”, “radio frame”, “subframe”, “slot”, “sub-slot”, “mini-slot”, “symbol”, “symbol”, and “transmission time interval (TTI)” can be used interchangeably.

[0200] In some embodiments, “get,” “obtain,” “receive,” “transmit,” “bidirectional transmission,” and “send and / or receive” can be used interchangeably and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining through self-processing, or autonomous implementation, among other meanings.

[0201] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transmit,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0202] In some embodiments, terms such as "certain," "preset," "default," "set," "indicated," "a certain," "any," and "first" can be used interchangeably. "Certain A," "preset A," "default A," "set A," "indicated A," "a certain A," "any A," and "first A" can be interpreted as A pre-defined in a protocol or the like, or as A obtained through setting, configuration, or instruction, or as specific A, a certain A, any A, or first A, but are not limited thereto.

[0203] Corresponding to the aforementioned embodiments of the information sending method and information receiving method, this disclosure also provides embodiments of the information sending device and the information receiving device.

[0204] Figure 4 is a schematic block diagram illustrating an information transmitting device according to an embodiment of the present disclosure. For example, the information transmitting device can be disposed in and / or applied to a reading device. As shown in Figure 4, the information transmitting device includes: a processing module 401 and a transmitting module 402.

[0205] In some embodiments, the processing module is configured to determine the mapping relationship between the first resource and the second resource according to predefined rules; or, the sending module is configured to send first indication information to the environmental IoT device, wherein the first indication information is used to indicate the mapping relationship, the first resource is used to send a first random access message Msg1, and the second resource is used to send a third random access message Msg3 corresponding to Msg1 on the first resource; the sending module is further configured to send second indication information to the environmental IoT device, wherein the second indication information is used by the environmental IoT device to determine whether to adjust the mapping relationship.

[0206] In some embodiments, the processing module is further configured to determine the reception result of Msg1 sent by the environmental IoT device on the first resource; and generate the second indication information based on the reception result.

[0207] In some embodiments, the processing module is configured to generate second indication information for the environmental IoT device to determine to adjust the mapping relationship if it does not receive Msg1 from the environmental IoT device on at least one of the first resources in the mapping relationship; or, if it receives Msg1 from the environmental IoT device on all the first resources in the mapping relationship, it generates second indication information for the environmental IoT device to determine not to adjust the mapping relationship.

[0208] In some embodiments, the second resource includes at least one frequency division multiplexing resource corresponding to a first time-domain resource.

[0209] In some embodiments, the second indication information is carried in at least one second random access message Msg2, wherein a third resource for sending the Msg2 is provided before each of the first time domain resources.

[0210] In some embodiments, the second indication information includes at least one of the following: a first sub-information for indicating whether there is a Msg2 after the Msg2 where the second indication information is located; and a second sub-information for the environmental IoT device to determine the adjusted mapping relationship.

[0211] In some embodiments, when the second indication information includes the second sub-information, the second indication information is used by the environmental IoT device to determine whether to adjust the mapping relationship; or, when the second indication information does not include the second sub-information, the second indication information is used by the environmental IoT device to determine whether to adjust the mapping relationship.

[0212] In some embodiments, the second sub-information includes: first resource information, used by the environmental IoT device to determine a first resource in the adjusted mapping relationship; and third resource information, used by the environmental IoT device to determine a third resource in the adjusted mapping relationship.

[0213] In some embodiments, the processing module is further configured to determine a third resource to stop sending Msg2; and to determine that the environmental IoT device ignores the second resource after the third resource to stop sending Msg2.

[0214] In some embodiments, the mapping relationship includes at least one of the following: when the first quantity is less than or equal to the third quantity, the first resource is mapped to a frequency division multiplexing resource corresponding to the first time domain resource; when the first quantity is greater than the third quantity, the first resource is mapped to multiple frequency division multiplexing resources corresponding to the first time domain resources; wherein, the first quantity is the number of the first resources, and the third quantity is the number of frequency division multiplexing resources corresponding to one first time domain resource.

[0215] Figure 5 is a schematic block diagram illustrating an information receiving device according to an embodiment of the present disclosure. For example, the information receiving device can be configured in and / or applied to an A-IoT device. As shown in Figure 5, the information receiving device includes: a processing module 501 and a receiving module 502.

[0216] In some embodiments, the processing module is configured to determine the mapping relationship between the first resource and the second resource according to predefined rules; or, the receiving module is configured to receive first indication information sent by the reading device, wherein the first indication information is used to indicate the mapping relationship, the first resource is used to send a first random access message Msg1, and the second resource is used to send a third random access message Msg3 corresponding to Msg1 on the first resource; the receiving module is further configured to receive second indication information sent by the reading device, wherein the second indication information is used by the environmental IoT device to determine whether to adjust the mapping relationship.

[0217] In some embodiments, the second resource includes at least one frequency division multiplexing resource corresponding to a first time-domain resource.

[0218] In some embodiments, the second indication information is carried in at least one second random access message Msg2, wherein a third resource for sending the Msg2 is provided before each of the first time domain resources.

[0219] In some embodiments, the second indication information includes at least one of the following: a first sub-information for indicating whether there is a Msg2 after the Msg2 where the second indication information is located; and a second sub-information for the environmental IoT device to determine the adjusted mapping relationship.

[0220] In some embodiments, when the second indication information includes the second sub-information, the second indication information is used by the environmental IoT device to determine whether to adjust the mapping relationship; or, when the second indication information does not include the second sub-information, the second indication information is used by the environmental IoT device to determine whether to adjust the mapping relationship.

[0221] In some embodiments, the second sub-information includes: first resource information, used by the environmental IoT device to determine a first resource in the adjusted mapping relationship; and third resource information, used by the environmental IoT device to determine a third resource in the adjusted mapping relationship.

[0222] In some embodiments, the processing module is further configured to determine that the reading device stops sending the third resource of Msg2; and ignore the second resource after the third resource of Msg2 is stopped.

[0223] In some embodiments, the mapping relationship includes at least one of the following: when the first quantity is less than or equal to the third quantity, the first resource is mapped to a frequency division multiplexing resource corresponding to the first time domain resource; when the first quantity is greater than the third quantity, the first resource is mapped to multiple frequency division multiplexing resources corresponding to the first time domain resources; wherein, the first quantity is the number of the first resources, and the third quantity is the number of frequency division multiplexing resources corresponding to one first time domain resource.

[0224] For the device embodiments, since they basically correspond to the method embodiments, the relevant parts can be referred to in the description of the method embodiments. The device embodiments described above are merely illustrative. The modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical modules; that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0225] This disclosure also provides an apparatus for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Alternatively, another apparatus is provided that includes units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods.

[0226] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0227] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. Furthermore, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a Neural Network Processing Unit (NPU), a Tensor Processing Unit (TPU), or a Deep Learning Processing Unit (DPU).

[0228] Figure 6A is a schematic diagram of the structure of the communication device 6100 proposed in an embodiment of this disclosure. The communication device 6100 can be a network device (e.g., access network device, core network device, etc.), a terminal (e.g., user equipment, etc.), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The communication device 6100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0229] As shown in Figure 6A, the communication device 6100 includes one or more processors 6101. The processor 6101 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Optionally, the communication device 6100 can be used to execute any of the above methods. Optionally, one or more processors 6101 can be used to invoke instructions to cause the communication device 6100 to execute any of the above methods.

[0230] In some embodiments, the communication device 6100 further includes one or more transceivers 6102. When the communication device 6100 includes one or more transceivers 6102, the transceiver 6102 performs at least one of the communication steps (e.g., steps S201, S202, but not limited thereto) in the above method, such as sending and / or receiving, while the processor 6101 performs at least one of other steps (e.g., steps S201, S202, but not limited thereto). In optional embodiments, the transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc., can be used interchangeably; the terms transmitter, sending unit, transmitter, sending circuit, etc., can be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.

[0231] In some embodiments, the communication device 6100 further includes one or more memories 6103 for storing data. Optionally, all or part of the memories 6103 may be located outside the communication device 6100. In optional embodiments, the communication device 6100 may include one or more interface circuits 6104. Optionally, the interface circuits 6104 are connected to the memories 6103 and can be used to receive data from the memories 6103 or other devices, and to send data to the memories 6103 or other devices. For example, the interface circuits 6104 can read data stored in the memories 6103 and send that data to the processor 6101.

[0232] The communication device 6100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 6100 described in this disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited by FIG. 6A. The communication device may be a standalone device or a part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0233] Figure 6B is a schematic diagram of the structure of chip 6200 according to an embodiment of this disclosure. For cases where the communication device 6100 can be a chip or a chip system, please refer to the schematic diagram of chip 6200 shown in Figure 6B, but it is not limited thereto.

[0234] Chip 6200 includes one or more processors 6201. Chip 6200 is used to perform any of the methods described above.

[0235] In some embodiments, chip 6200 further includes one or more interface circuits 6202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 6200 further includes one or more memories 6203 for storing data. Optionally, all or part of the memories 6203 may be located outside chip 6200. Optionally, interface circuit 6202 is connected to memory 6203, and interface circuit 6202 can be used to receive data from memory 6203 or other devices, and interface circuit 6202 can be used to send data to memory 6203 or other devices. For example, interface circuit 6202 can read data stored in memory 6203 and send the data to processor 6201.

[0236] In some embodiments, the interface circuit 6202 performs at least one of the communication steps (e.g., steps S201, S202, but not limited thereto) in the above-described method, such as sending and / or receiving. For example, the interface circuit 6202 performing the communication steps (e.g., sending and / or receiving) in the above-described method means that the interface circuit 6202 performs data interaction between the processor 6201, the chip 6200, the memory 6203, or the transceiver device. In some embodiments, the processor 6201 performs at least one of other steps (e.g., steps S201, S202, but not limited thereto).

[0237] The modules and / or devices described in the various embodiments, such as virtual devices, physical devices, and chips, can be combined or separated arbitrarily as needed. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0238] This disclosure also proposes a storage medium storing instructions that, when executed on the communication device 6100, cause the communication device 6100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0239] This disclosure also provides a program product that, when executed by the communication device 6100, causes the communication device 6100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0240] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

Claims

1. A method for sending information, characterized in that, The method, executed by the reading device, includes: The mapping relationship between the first resource and the second resource is determined according to predefined rules, or the first indication information is sent to the environmental IoT device, wherein the first indication information is used to indicate the mapping relationship, the first resource is used to send the first random access message Msg1, and the second resource is used to send the third random access message Msg3 corresponding to Msg1 on the first resource. Send a second indication message to the environmental IoT device, wherein the second indication message is used by the environmental IoT device to determine whether to adjust the mapping relationship.

2. The method according to claim 1, characterized in that, The method further includes: Determine the reception result of Msg1 sent by the environmental IoT device on the first resource; The second indication information is generated based on the received result.

3. The method according to claim 2, characterized in that, The step of generating the second indication information based on the received result includes: If Msg1 is not received from the environmental IoT device on at least one of the first resources in the mapping relationship, a second indication message is generated for the environmental IoT device to determine whether to adjust the mapping relationship; or... Upon receiving Msg1 from the environmental IoT device on all the first resources in the mapping relationship, a second indication is generated for the environmental IoT device to determine that the mapping relationship should not be adjusted.

4. The method according to any one of claims 1 to 3, characterized in that, The second resource includes at least one frequency division multiplexing resource corresponding to the first time-domain resource.

5. The method according to claim 4, characterized in that, The second indication information is carried in at least one second random access message Msg2, wherein a third resource for sending the Msg2 is set before each of the first time domain resources.

6. The method according to claim 5, characterized in that, The second indication information includes at least one of the following: The first sub-information is used to indicate whether there is a Msg2 after the Msg2 where the second indication information is located; The second sub-information is used by the environmental IoT devices to determine the adjusted mapping relationship.

7. The method according to claim 6, characterized in that, When the second indication information includes the second sub-information, the second indication information is used by the environmental IoT device to determine and adjust the mapping relationship; or... If the second indication information does not include the second sub-information, the second indication information is used by the environmental IoT device to determine that the mapping relationship should not be adjusted.

8. The method according to claim 6 or 7, characterized in that, The second sub-information includes: First resource information is used by the environmental IoT device to determine the first resource in the adjusted mapping relationship; The third resource information is used by the environmental IoT device to determine the third resource in the adjusted mapping relationship.

9. The method according to any one of claims 5 to 8, characterized in that, The method further includes: Determine to stop sending Msg2's third resource; The second resource is determined after the environmental IoT device ignores and stops sending Msg2 from the third resource.

10. The method according to any one of claims 4 to 9, characterized in that, The mapping relationship includes at least one of the following: When the first quantity is less than or equal to the third quantity, the first resource is mapped to a frequency division multiplexing resource corresponding to the first time domain resource; When the first quantity is greater than the third quantity, the first resource is mapped to multiple frequency division multiplexing resources corresponding to the first time domain resources; Wherein, the first quantity is the number of the first resources, and the third quantity is the number of frequency division multiplexing resources corresponding to one of the first time-domain resources.

11. An information receiving method, characterized in that, Performed by an environmental IoT device, the method includes: The mapping relationship between the first resource and the second resource is determined according to predefined rules, or the first indication information sent by the reading device is received, wherein the first indication information is used to indicate the mapping relationship, the first resource is used to send the first random access message Msg1, and the second resource is used to send the third random access message Msg3 corresponding to Msg1 on the first resource. The device receives a second indication message sent by the reading device, wherein the second indication message is used by the environmental IoT device to determine whether to adjust the mapping relationship.

12. The method according to claim 11, characterized in that, The second resource includes at least one frequency division multiplexing resource corresponding to the first time-domain resource.

13. The method according to claim 12, characterized in that, The second indication information is carried in at least one second random access message Msg2, wherein a third resource for sending the Msg2 is set before each of the first time domain resources.

14. The method according to claim 13, characterized in that, The second indication information includes at least one of the following: The first sub-information is used to indicate whether there is a Msg2 after the Msg2 where the second indication information is located; The second sub-information is used by the environmental IoT devices to determine the adjusted mapping relationship.

15. The method according to claim 14, characterized in that, When the second indication information includes the second sub-information, the second indication information is used by the environmental IoT device to determine and adjust the mapping relationship; or... If the second indication information does not include the second sub-information, the second indication information is used by the environmental IoT device to determine that the mapping relationship should not be adjusted.

16. The method according to claim 14 or 15, characterized in that, The second sub-information includes: First resource information is used by the environmental IoT device to determine the first resource in the adjusted mapping relationship; The third resource information is used by the environmental IoT device to determine the third resource in the adjusted mapping relationship.

17. The method according to any one of claims 13 to 16, characterized in that, The method further includes: Determine that the reading device stops sending the third resource of Msg2; Ignore the second resource after the third resource of stopping sending Msg2.

18. The method according to any one of claims 12 to 17, characterized in that, The mapping relationship includes at least one of the following: When the first quantity is less than or equal to the third quantity, the first resource is mapped to a frequency division multiplexing resource corresponding to the first time domain resource; When the first quantity is greater than the third quantity, the first resource is mapped to multiple frequency division multiplexing resources corresponding to the first time domain resources; Wherein, the first quantity is the number of the first resources, and the third quantity is the number of frequency division multiplexing resources corresponding to one of the first time-domain resources.

19. An information transmitting device, characterized in that, The device includes: The processing module is configured to determine the mapping relationship between the first resource and the second resource according to predefined rules, or the sending module is configured to send the first indication information to the environmental IoT device, wherein the first indication information is used to indicate the mapping relationship, the first resource is used to send the first random access message Msg1, and the second resource is used to send the third random access message Msg3 corresponding to Msg1 on the first resource. The sending module is further configured to send a second indication message to the environmental IoT device, wherein the second indication message is used by the environmental IoT device to determine whether to adjust the mapping relationship.

20. An information receiving device, characterized in that, The device includes: The processing module is configured to determine the mapping relationship between the first resource and the second resource according to predefined rules, or the receiving module is configured to receive the first indication information sent by the reading device, wherein the first indication information is used to indicate the mapping relationship, the first resource is used to send the first random access message Msg1, and the second resource is used to send the third random access message Msg3 corresponding to Msg1 on the first resource. The receiving module is further configured to receive second indication information sent by the reading device, wherein the second indication information is used by the environmental IoT device to determine whether to adjust the mapping relationship.

21. An environmental Internet of Things (IoT) device, characterized in that, include: One or more processors; The environmental IoT device is used to perform the information transmission method according to any one of claims 1 to 10.

22. A reading device, characterized in that, include: One or more processors; The reading device is used to perform the information receiving method according to any one of claims 11 to 18.

23. A communication system, characterized in that, The invention includes an environmental IoT device and a reading device, wherein the environmental IoT device is configured to implement the information transmission method of any one of claims 1 to 10, and the reading device is configured to implement the information reception method of any one of claims 11 to 18.

24. A storage medium storing instructions, characterized in that, When the instruction is executed on the communication device, the communication device performs the information transmission method of any one of claims 1 to 10, and / or the information reception method of any one of claims 11 to 18.

25. A program product, characterized in that, When the above-described program product is executed by a communication device, the communication device performs the information transmission method according to any one of claims 1 to 10, and / or the information reception method according to any one of claims 11 to 18.

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