Communication method, communication device, communication system, and storage medium

Abstract

The present disclosure provides a communication method, a communication device, a communication system, and a storage medium. The method comprises: sending first signaling to a second device, and receiving second signaling sent by the second device, wherein the second device is a device that performs communication on the basis of collected energy, a first duration is present between a time point at which a first device sends the first signaling and a time point at which the first device receives the second signaling, the first duration satisfies that the first duration is not less than a second duration, and the second duration is determined by a preparation duration before the first device receives the second signaling. The present disclosure ensures communication accuracy and stability.

Description

Communication methods, communication equipment, communication systems, storage media Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to communication methods, communication devices, communication systems, and storage media. Background Technology

[0002] In the communication system, Ambient Internet of Things (A-IoT) devices are introduced. Optionally, A-IoT devices have at least one of the following characteristics: a large number of A-IoT devices that can be accessed in the network; the ability to inventory and monitor large-scale items; the ability to adaptively match the needs of different application scenarios; wide application; strong practicality; simple structure; low hardware cost; low maintenance cost; low power consumption; and may or may not include power supply devices. Summary of the Invention

[0003] This disclosure provides communication methods, communication devices, communication systems, and storage media.

[0004] According to a first aspect of the present disclosure, a communication method is proposed, executed by a first device, comprising: sending a first signaling to a second device and receiving a second signaling sent by the second device, wherein the second device is a device for communication based on collected energy; wherein the time point at which the first device sends the first signaling and the time point at which the first device receives the second signaling are spaced apart by a first duration, the first duration satisfying that: the first duration is not less than a second duration; wherein the second duration is determined by a preparation time before the first device receives the second signaling.

[0005] According to a second aspect of the present disclosure, a communication method is proposed, executed by a second device, comprising: receiving a first signaling sent by a first device, and sending a second signaling to the first device; wherein the second device is a device for communication based on collected energy, and the time interval between the second device receiving the first signaling and the second device sending the second signaling is a third duration, wherein the third duration satisfies: the third duration is not less than a fourth duration; the fourth duration is determined by the processing time of the second device for the first signaling.

[0006] According to a third aspect of the present disclosure, a first device is provided, comprising: a transceiver module, configured to send a first signaling to a second device and receive a second signaling sent by the second device, wherein the second device is a device for communication based on collected energy; wherein the time interval between the first device sending the first signaling and the first device receiving the second signaling is a first duration, the first duration satisfying that: the first duration is not less than a second duration; wherein the second duration is determined by a preparation time before the first device receives the second signaling.

[0007] According to a fourth aspect of the present disclosure, a second device is provided, comprising: a transceiver module, configured to receive a first signaling sent by a first device and send a second signaling to the first device; wherein the second device is a device for communication based on collected energy, and the time interval between the second device receiving the first signaling and the second device sending the second signaling is a third duration, wherein the third duration satisfies: the third duration is not less than a fourth duration; the fourth duration is determined by the processing time of the second device for the first signaling.

[0008] According to a fifth aspect of the embodiments of this disclosure, a communication device is provided, comprising:

[0009] One or more processors;

[0010] The processor is configured to invoke instructions to cause the communication device to execute any of the communication methods described in the first aspect to the second aspect.

[0011] According to a sixth aspect of the present disclosure, a communication system is provided, including a first device and a second device, wherein the first device is configured to implement the communication method described in the first aspect, and the second device is configured to implement the communication method described in the second aspect.

[0012] According to a seventh 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 a communication method as described in any of the first to second aspects.

[0013] According to an eighth aspect of the present disclosure, the present disclosure provides a program product including a computer program that, when executed by a communication device, implements the communication method as described in any of the first to second aspects.

[0014] According to a ninth aspect of the present disclosure, the present disclosure provides a computer program that, when run on a computer, causes the computer to perform the communication method as described in any of the first to second aspects.

[0015] It is understood that the first device, the second device, the communication device, the communication system, the storage medium, the program product, and the computer program described above 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. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0017] Figure 1A is a schematic diagram of the architecture of the communication system provided in an embodiment of this disclosure;

[0018] Figures 1B-1C are schematic diagrams illustrating the architecture of A-IoT devices communicating according to embodiments of the present disclosure;

[0019] Figures 1D and 1E are schematic diagrams illustrating the time interval between R2D transmission and D2R transmission when a reader transmits and receives on the same attribute frequency band according to an embodiment of the present disclosure.

[0020] Figures 1F and 1G are schematic diagrams illustrating the time interval between R2D and D2R transmissions when the Reader transmits and receives at different attribute bandwidths according to embodiments of the present disclosure.

[0021] Figure 2 is an interactive schematic diagram of a communication method provided in an embodiment of this disclosure;

[0022] Figure 3 is a flowchart illustrating a communication method provided in another embodiment of this disclosure;

[0023] Figure 4 is a flowchart illustrating a communication method provided in another embodiment of this disclosure;

[0024] Figure 5A is a schematic diagram of the structure of a first device provided in an embodiment of this disclosure;

[0025] Figure 5B is a schematic diagram of the structure of a second device provided in an embodiment of this disclosure;

[0026] Figure 6A is a schematic diagram of the structure of a communication device provided in an embodiment of this disclosure;

[0027] Figure 6B is a schematic diagram of the structure of a chip provided in an embodiment of this disclosure. Detailed Implementation

[0028] This disclosure provides embodiments of a communication method, a communication device, a communication system, and a storage medium.

[0029] In a first aspect, embodiments of this disclosure propose a communication method executed by a first device. The method includes: sending a first signaling to a second device and receiving a second signaling sent by the second device, wherein the second device is a device that communicates based on collected energy; wherein the time interval between the first device sending the first signaling and the time the first device receiving the second signaling is a first duration, the first duration satisfying that: the first duration is not less than a second duration; wherein the second duration is determined by the preparation time of the first device before receiving the second signaling.

[0030] In the above embodiments, it is ensured that the first duration is not less than the second duration and / or the first duration is greater than the second duration. The first duration is the interval between the time the first device sends the first signaling and the time the first device receives the second signaling, and the second duration is determined by the preparation time before the first device receives the second signaling. Therefore, in this embodiment of the present disclosure, after the first device sends the first signaling, it does not immediately receive the second signaling, but rather receives it after a sufficient interval. This provides ample preparation time for receiving the second signaling, allowing the first device to fully perform the necessary preparation operations for receiving the second signaling, ensuring accurate reception of the second signaling, and guaranteeing communication accuracy and stability.

[0031] In conjunction with some embodiments of the first aspect, in some embodiments, the second duration includes at least one of the following: the preparation time required for the first device to receive the second signaling; the minimum preparation time required for the first device to receive the second signaling; the maximum preparation time required for the first device to receive the second signaling; the duration required for the antenna of the first device to switch from a transmitting state to a receiving state; the minimum duration required for the antenna of the first device to switch from a transmitting state to a receiving state; and the maximum duration required for the antenna of the first device to switch from a transmitting state to a receiving state.

[0032] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes at least one of the following: determining the second duration based on a protocol agreement; determining the second duration based on the capabilities of the first device.

[0033] In the above embodiments, the specific meaning of the second duration and the method for determining the second duration are clarified so that the first device can accurately determine the second duration and accurately determine the interval duration (i.e., the first duration) between the time point when the first device sends the first signaling and the time point when the first device receives the second signaling based on the second duration, such that the first duration is greater than the second duration, and / or such that the first duration is not less than the second duration. This provides sufficient preparation time for the first device to receive the second signaling, allowing the first device to fully perform the preparation operations required to receive the second signaling, ensuring the accurate reception of the second signaling, and guaranteeing the accuracy and stability of communication.

[0034] In conjunction with some embodiments of the first aspect, in some embodiments, the first device supports simultaneously performing the sending step of the first signaling and the receiving step of the second signaling.

[0035] In conjunction with some embodiments of the first aspect, in some embodiments, a first message is sent to a network device, the first message being used to indicate whether the first device supports simultaneously performing the sending step of the first signaling and the receiving step of the second signaling.

[0036] In the above embodiments, the support of the first device for "simultaneously executing the sending step of the first signaling and the receiving step of the second signaling" is clarified, so that the network device and the first device have a unified understanding of "whether the first device supports simultaneously executing the sending step of the first signaling and the receiving step of the second signaling". Thus, the network device can configure the corresponding communication resources for the first device based on "whether the first device supports simultaneously executing the sending step of the first signaling and the receiving step of the second signaling", ensuring the accuracy of resource configuration.

[0037] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes one of the following: the first device includes a first node for sending a first signal, and controls the first node to send the first signal at a first time point, the first signal being used to excite the second device to send the second signaling; the first device does not include the first node, and sends second information to a network device, the second information being used to instruct the first node to send the first signal at the first time point.

[0038] In the above embodiments, the first device controls the transmission time of the first signal, which is used to excite the second device to send the second signaling. Thus, by controlling the transmission time of the first signal, the starting transmission time of the second signaling by the second device can be flexibly controlled. For example, the first device can control the second device to send the second signaling after a sufficient duration from the first signaling reception time, so as to ensure that there is a long transmission interval between the first signaling and the second signaling, ensuring that the first device can fully perform the reception preparation operation of the second signaling, and ensuring that the second device can fully perform the processing operation of the first signaling, thereby ensuring the transmission accuracy of the first and second signaling.

[0039] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes: sending third information to the second device, the third information being used to indicate the time point at which the second device sends the second signaling.

[0040] In the above embodiments, the first device controls the timing of the second device sending the second signaling. The first device can control the second device to send the second signaling to the first device after a sufficient duration following the first signaling reception time. This results in a longer transmission interval between the first and second signaling, ensuring that the first device can fully perform the reception preparation operation for the second signaling and that the second device can fully perform the processing operation for the first signaling, thus guaranteeing the accuracy of the transmission of the first and second signaling.

[0041] Secondly, this disclosure provides a communication method executed by a second device. The method includes: receiving a first signaling sent by a first device, and sending a second signaling to the first device; wherein the second device is a device that communicates based on collected energy, and the time interval between the second device receiving the first signaling and the second device sending the second signaling is a third duration, wherein the third duration satisfies the following: the third duration is not less than a fourth duration; the fourth duration is determined by the processing time of the second device for the first signaling.

[0042] In the above embodiments, it is ensured that the third duration is not less than the fourth duration and / or the third duration is greater than the fourth duration. The third duration is the interval between the time the second device receives the first signaling and the time the second device sends the second signaling, and the fourth duration is determined by the processing time of the second device for the first signaling. Therefore, in this embodiment of the present disclosure, after the second device receives the first signaling, it does not immediately send the second signaling, but rather sends it after a sufficient interval. This provides ample preparation time for processing the first signaling, allowing the second device to fully process the first signaling before sending the second signaling based on it, ensuring the accurate transmission of the second signaling and guaranteeing communication accuracy and stability.

[0043] In conjunction with some embodiments of the second aspect, in some embodiments, the fourth duration includes at least one of the following: the duration required for the second device to process the first signaling; the duration required for the second device to process the information carried by the first signaling; the minimum duration required for the second device to process the first signaling; the minimum duration required for the second device to process the information carried by the first signaling; the maximum duration required for the second device to process the first signaling; and the maximum duration required for the second device to process the information carried by the first signaling.

[0044] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes at least one of the following: determining the fourth duration based on a protocol agreement; determining the fourth duration based on the capabilities of the second device.

[0045] In some embodiments, in conjunction with the second aspect, the method further includes: receiving third information sent by the first device; and determining the time point at which the second device sends the second signaling based on the third information.

[0046] Thirdly, this disclosure provides a first device, including: a transceiver module, configured to send a first signaling to a second device and receive a second signaling sent by the second device, wherein the second device is a device for communication based on collected energy; wherein the time interval between the first device sending the first signaling and the first device receiving the second signaling is a first duration, the first duration satisfying that: the first duration is not less than a second duration; wherein the second duration is determined by the preparation time of the first device before receiving the second signaling.

[0047] Fifthly, this disclosure provides a second device, comprising: a transceiver module, configured to receive a first signaling sent by a first device and send a second signaling to the first device; wherein the second device is a device for communication based on collected energy, and the time interval between the second device receiving the first signaling and the second device sending the second signaling is a third duration, wherein the third duration satisfies: the third duration is not less than a fourth duration; the fourth duration is determined by the processing time of the second device for the first signaling.

[0048] In a sixth aspect, embodiments of this disclosure provide a communication device comprising: one or more processors; one or more memories for storing instructions; wherein the processors are configured to invoke the instructions to cause the communication device to perform the methods described in the first aspect, the optional implementation of the first aspect, the second aspect, and the optional implementation of the second aspect.

[0049] In a seventh aspect, embodiments of this disclosure provide a communication system comprising: a first device and a second device; wherein the first device is configured to perform the method described in the first aspect and optional implementations thereof, and the second device is configured to perform the method described in the second aspect and optional implementations thereof.

[0050] 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 method described in the first aspect, an optional implementation of the first aspect, the second aspect, and an optional implementation of the second aspect.

[0051] In a ninth aspect, embodiments of this disclosure provide a program product including a computer program that, when executed by a processor, implements the methods described in the first aspect, the optional implementation of the first aspect, the second aspect, and the optional implementation of the second aspect.

[0052] In a tenth aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the methods described in the first aspect, an optional implementation of the first aspect, the second aspect, and an optional implementation of the second aspect.

[0053] It is understood that the aforementioned terminals, network devices, communication devices, 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 they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0054] This disclosure provides a rescue request method, communication equipment, communication system, and storage medium. In some embodiments, the terms resource selection method, information processing method, and communication method can be used interchangeably.

[0055] 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. In all embodiments of this disclosure, unless otherwise specified or logically conflicting, the terminology and / or descriptions between the embodiments are consistent and can be mutually referenced. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0056] 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.

[0057] In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the," "the," "the," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular expression or a plural expression.

[0058] In the embodiments disclosed herein, "multiple" refers to two or more.

[0059] In some embodiments, the terms “at least one of A or B, at least one of A and B”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0060] 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 whether there is a branch B); in some embodiments, B (execute B regardless of whether there is a branch A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, both A and B are executed. The same applies when there are more branches such as A, B, C, etc.

[0061] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execute A regardless of whether a branch B exists); in some embodiments, B (execute B regardless of whether a branch A exists); 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, and C.

[0062] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," 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 a "level," 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 and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described 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 object being described 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.

[0063] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0064] In some embodiments, terms such as "time / frequency" and "time-frequency domain" refer to the time domain and / or frequency domain.

[0065] In some embodiments, terms such as “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “when…”, “if…”, etc. can be used interchangeably. These descriptions all refer to the device making a corresponding action under certain objective circumstances. They do not necessarily limit the time, nor do they require the device to make a judgment action when implementing it, nor do they mean that there must be other limitations.

[0066] 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”.

[0067] In some embodiments, devices, etc., may be interpreted as physical or virtual, and their names are not limited to those described in the embodiments. Terms such as “device,” “equipment,” “circuit,” “network element,” “network function,” “network device,” “function,” “node,” “unit,” “section,” “system,” “network,” “chip,” “chip system,” “entity,” and “subject” are interchangeable.

[0068] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).

[0069] 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.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0074] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0075] 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.

[0076] Figure 1A is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure. As shown in Figure 1A, the communication system 100 may include at least one of a first device, a second device, and a network device; wherein, the second device may be an environmental Internet of Things (IoT) device, the first device is a device communicating with the second device, and the first device may be a network device or a terminal. Optionally, the network device may include at least one of an access network device and a core network device.

[0077] In some embodiments, the terminal 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 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.

[0078] 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 at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation evolved Node B (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, but is not limited thereto.

[0079] 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.

[0080] 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 protocol layer functions are centrally controlled by the CU, while the remaining part or all protocol layer functions are distributed in the DU and centrally controlled by the CU. However, this is not the only possibility.

[0081] 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 the following: Evolved Packet Core (EPC), 5G Core Network (5GCN), and Next Generation Core (NGC).

[0082] 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.

[0083] 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. 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.

[0084] 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 resource selection 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).

[0085] Optionally, the aforementioned A-IoT device may also be referred to as: low-power device, low-power environment IoT device, A-IoT Device, A-IoT UE, A-IoT terminal, A-IoT Tag, Tags, IoT device, IoT terminal, etc., and the A-IoT device can collect energy from the outside to supply normal uplink and downlink transmission. For example, the A-IoT device can collect environmental energy and / or artificial energy to supply normal uplink and downlink transmission. Optionally, the environmental energy may include natural energy such as solar energy, wind energy, and nuclear energy, and the artificial energy may include energy such as electromagnetic waves emitted by artificial devices.

[0086] Optionally, in some embodiments, the A-IoT device may transmit signaling and / or data based on backscatter. Specifically, for a backscatter-based A-IoT device, a continuous wave (CW) energy source (Continuous Wave Node, CWN) is typically required to provide the A-IoT device with CW that can be reflected. The A-IoT device can receive the CW transmitted by the energy source, which can be used to power the A-IoT device to activate its internal receiving and processing module. This allows the A-IoT device to encode and modulate the signaling and / or data to be transmitted, and load the signaling and / or data onto the reflected wave for transmission, thereby achieving backscatter communication.

[0087] Optionally, the aforementioned CWN can be a single node, a base station communicating with A-IoT devices, or an intermediate node (such as a terminal) communicating with A-IoT devices. Optionally, the frequency of the electromagnetic waves emitted by the CWN can be a constant amplitude, and the transmission frequency used by the A-IoT device to reflect the electromagnetic waves can be the same as the frequency of the electromagnetic waves emitted by the CWN, or the transmission frequency used by the A-IoT device to reflect the electromagnetic waves can have an offset from the frequency of the electromagnetic waves emitted by the CWN. The magnitude of this offset value is related to the hardware characteristics of the A-IoT device. Optionally, this offset value can be a fixed value, or it can be dynamically adjusted.

[0088] Optionally, the A-IoT device can also transmit signaling and / or data based on proactive transmission. Optionally, "proactive transmission" can be understood, for example, as the ability to proactively generate and transmit signals without CW signal excitation. In this case, the A-IoT device can proactively generate and transmit signals based on its stored energy, which can be energy pre-charged to the A-IoT device.

[0089] Optionally, the aforementioned A-IoT devices come in various types, and different types of A-IoT devices have different capabilities.

[0090] Optionally, the device types of A-IoT devices may include, for example, type 1, type 2a, type 2b, and type 2c. Type 1 and type 2a A-IoT devices are passive devices, while type 2b A-IoT devices are active devices. Optionally, type 1 A-IoT devices operate based on backscattering, exhibiting the lowest complexity and lowest power consumption. Type 2a A-IoT devices support energy storage and operate based on backscattering, with higher complexity and power consumption than type 1 A-IoT devices. Type 2a A-IoT devices also possess some signal amplification capabilities, but these remain at a relatively low level. Type 2b A-IoT devices operate based on active transmission, possessing both signal amplification capabilities and the ability to actively transmit information. Type 2c A-IoT devices possess both active information transmission and backscattering capabilities.

[0091] Optionally, the above-described A-IoT device can be applied to a variety of different communication architectures in the communication system. Figures 1B and 1C are schematic diagrams of the architecture of A-IoT device communication according to embodiments of this disclosure.

[0092] Optionally, as shown in Figure 1B, A-IoT devices (i.e., Ambient IoT devices in Figure 1B) and network devices (i.e., base stations (BS) in Figure 1B) can directly receive and send data.

[0093] Optionally, as shown in Figure 1C, A-IoT devices and network devices (i.e., base stations (BS) in Figure 1B) can indirectly receive and send data through intermediate nodes. The intermediate node can also be called an auxiliary node. The intermediate node can be any of the following: relay, integrated access backhaul (IAB) device, terminal, or repeater.

[0094] Optionally, in some embodiments, the network devices, intermediate nodes, and auxiliary nodes in Figures 1B and 1C can be collectively referred to as Reader.

[0095] Optionally, the transmission process in which the Reader sends at least one of the information, data, and signaling to the A-IoT device can be referred to as R2D transmission, and the transmission process in which the A-IoT device sends at least one of the information, data, and signaling to the Reader can be referred to as D2R transmission.

[0096] In some embodiments, the frequency band for the Reader to receive and / or transmit at least one of information, data, and signaling can be combined as follows:

[0097] Option 1: The Reader transmits R2D in the downlink band (DL band) and receives D2R in the uplink band (UL band);

[0098] Option 2: The Reader sends R2D on the DL Band and receives D2R on the DL Band;

[0099] Option 3: The Reader sends R2D on the UL Band and receives D2R on the UL Band.

[0100] Optionally, assuming the Reader transmits and receives on the same attribute frequency band, such as the DL or UL band, the Reader needs to transmit R2D within that attribute bandwidth and simultaneously receive D2R transmitted or backscattered by the A-IoT device within the same attribute bandwidth. Optionally, from the perspective of the A-IoT device, after receiving the R2D, the A-IoT device needs to process the control information in the R2D, thus requiring a certain processing time. The A-IoT device needs to ensure sufficient time is reserved before transmitting or backscattering the D2R. Optionally, Figure 1D is a schematic diagram of the time interval between R2D transmission and D2R transmission when the Reader transmits and receives on the same attribute frequency band according to an embodiment of this disclosure. As shown in Figure 1D, the processing time of the A-IoT device for R2D is T0, and the time interval between R2D and D2R is T1. To ensure normal communication, T1 is not less than T0.

[0101] Optionally, from the reader's perspective, switching from transmit mode to receive mode also requires a certain processing time for antenna switching, etc. The reader needs to ensure sufficient time is reserved before receiving D2R transmitted or backscattered from the A-IoT device. Optionally, Figure 1E is a schematic diagram of the time interval between R2D transmission and D2R transmission when the reader is transmitting and receiving on the same attribute frequency band according to an embodiment of this disclosure. As shown in Figure 1E, the preparation time for the reader to switch from transmit mode to receive mode is T2, and the time interval between R2D and D2R is T1. To ensure normal communication, T1 is not less than T2.

[0102] Optionally, a similar scenario is when the Reader transmits and receives data at different attribute bandwidths. For example, Figures 1F and 1G are schematic diagrams illustrating the time interval between R2D transmission and D2R transmission when the Reader transmits and receives data at different attribute bandwidths according to embodiments of this disclosure. As shown in Figure 1F, T1 is not less than T0, and as shown in Figure 1G, T1 is not less than T2.

[0103] Optionally, determining the relationship between T0, T2, and T1 to ensure that the time for A-IoT devices to send D2R is reasonable is a technical problem that urgently needs to be solved.

[0104] Furthermore, in some embodiments, the operations performed by the Reader on the same A-IoT device are time-division multiplexed, meaning that there will be no simultaneous sending and receiving. If multiple A-IoT devices are involved, the Reader may need to have corresponding full-duplex capabilities, that is, the Reader needs to send and receive simultaneously. Whether the Reader has corresponding full-duplex capabilities is the basis for the network device to configure A-IoT communication resources for it.

[0105] Figure 2 is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2, this embodiment of the disclosure relates to a communication method for a communication system 100; the method includes:

[0106] Step 2101: The first device sends the first information to the network device.

[0107] Optionally, the first device may be, for example, the Reader mentioned earlier in the embodiment of FIG2. In some embodiments, the first device may also be referred to as an IoT network device, an A-IoT network device, etc., and this disclosure does not specifically limit this. Optionally, the "IoT network device, A-IoT network device" here is a different network device from the network device that receives the first information in step 2101. In some embodiments, the first device may also be a network device, in which case the first device is a different network device from the network device that receives the first information in step 2101.

[0108] Optionally, the first information can be used to indicate whether the first device supports simultaneously executing the sending step of the first signaling and the receiving step of the second signaling. Optionally, the first signaling can be downlink signaling sent by the first device to the second device. In some embodiments, the second device can be a device that communicates based on collected energy. For example, the second device can be the A-IoT device mentioned earlier in the embodiment of FIG2. The second device can also be referred to as a low-power device, low-power environment IoT device, A-IoT Device, A-IoT UE, A-IoT terminal, A-IoT Tag, Tag, IoT device, IoT terminal, etc. This disclosure does not specifically limit this. Optionally, the first signaling may include downlink control information and / or downlink data information that the first device needs to send to the second device. Optionally, the second signaling can be uplink signaling sent by the second device to the first device. The second signaling may include uplink data information that the second device needs to send to the first device, etc.

[0109] In some embodiments, the aforementioned "first device sending first signaling to second device" can be referred to as R2D transmission, for example. Optionally, R2D transmission can refer to transmission from the first device to the second device, such as the first device sending at least one of information, data, and signaling to the second device. Optionally, the aforementioned "second device sending second signaling to first device" can be referred to as D2R transmission, and D2R transmission can refer to transmission from the second device to the first device, such as the second device sending at least one of information, data, and signaling to the first device. In some embodiments, when the first device supports simultaneously performing the sending step of the first signaling and the receiving step of the second signaling, it indicates that the first device supports full-duplex capability, or that the first device supports simultaneous R2D and D2R transmissions.

[0110] Optionally, in some embodiments, the aforementioned "the first device simultaneously performs the step of sending the first signaling and the step of receiving the second signaling" may, for example, mean that the first device simultaneously performs the step of "sending the first signaling to the second device #1" and the step of "receiving the second signaling sent by the second device #2". Alternatively, in the above embodiments, the aforementioned "the first device simultaneously performs the step of sending the first signaling and the step of receiving the second signaling" may, for example, mean that the first device simultaneously performs the step of "sending the first signaling to the second device #1" and the step of "receiving the second signaling sent by the second device #1", or it may be in other forms, and this disclosure does not specifically limit it in this way.

[0111] In some embodiments, the first information may be sent to the network device by a device other than the first device, in which case step 2101 may be omitted.

[0112] In some embodiments, the protocol may directly stipulate that the first device supports the simultaneous execution of the first signaling transmission step and the second signaling reception step. For example, the protocol may stipulate that the first device must support the simultaneous execution of the first signaling transmission step and the second signaling reception step. In this case, step 2101 can be omitted.

[0113] Step 2102: The first device sends a first signaling message to the second device.

[0114] Optionally, the second device may receive the first signaling sent by the first device.

[0115] For detailed information on the first device, the second device, and the first signaling, please refer to step 2101 above.

[0116] Step 2103: The first device determines the second duration.

[0117] Optionally, in some embodiments, the second duration may be determined by the preparation time of the first device before receiving the second signaling. Optionally, the "preparation time" here may include, for example, the preparation time of the first device for "related hardware and / or related software for receiving the second signaling". In some embodiments, the second duration may include at least one of the following: the preparation time required for the first device to receive the second signaling, the minimum preparation time required for the first device to receive the second signaling, the maximum preparation time required for the first device to receive the second signaling, the time required for the first device's antenna to switch from a transmitting state to a receiving state, the minimum time required for the first device's antenna to switch from a transmitting state to a receiving state, and the maximum time required for the first device's antenna to switch from a transmitting state to a receiving state.

[0118] Optionally, in some embodiments, the first device may determine the second duration based on a protocol agreement. For example, the second duration may be a fixed value agreed upon in the protocol. In other embodiments, the second duration may be determined based on the capabilities of the first device.

[0119] Optionally, the second duration can be measured by an absolute time unit, or it can be measured by a relative time unit. Optionally, the absolute time unit may include at least one of the following: hour, minute, second, millisecond, microsecond; and the relative time unit may include at least one of the following: radio frame, half frame, radio subframe, time slot, mini-time slot, time domain symbol.

[0120] Step 2104: The first device sends the second information to the network device, or the first device controls the first node to send the first signal at a first time point.

[0121] Optionally, the first node described above can be used to transmit a first signal. In some embodiments, the first node may include, for example, a continuous wave energy source node (CWN), and the first signal may include, for example, a continuous wave (CW) signal. Optionally, the first signal can be used to excite the second device to transmit a second signaling. For example, the first signal can be used to power the second device to activate its internal receiving and processing module, enabling the second device to encode and modulate the signaling and / or data to be transmitted, and load the signaling and / or data to be transmitted onto the reflected wave for transmission, thereby achieving backscatter communication.

[0122] Optionally, the aforementioned first node may be included in (i.e., located in) the first device, or it may not be included in the first device (i.e., it is an independent node, not located in the first device). In some embodiments, when the first device includes the first node, the first device can control the first node to send a first signal at a first time point. In some embodiments, when the first device does not include the first node, the first device can send second information to the network device. The second information can be used to instruct the first node to send the first signal at a first time point, so that the network device can control or schedule the first node to send the first signal at the first time point. Optionally, the first time point may be agreed upon by a protocol, or it may be determined autonomously by the terminal based on its implementation. Optionally, the first time point may be an absolute time point or a relative time point. Optionally, an absolute time point may include at least one of hours, minutes, seconds, milliseconds, and microseconds, and a relative time point may include at least one of radio frames, half frames, radio subframes, time slots, mini time slots, and time domain symbols.

[0123] In some embodiments, there is generally a fixed interval between the transmission time of the first signal and the time when the second device backscatters the second signal based on the first signal. Thus, by controlling the first node to transmit the first signal at the first time point, the backscattering start time of the second device can be flexibly controlled, thereby flexibly controlling the time when the second device sends the second signal to the first device.

[0124] Step 2105: The first device sends third information to the second device.

[0125] Optionally, the third information can be used to indicate the time point at which the second device sends the second signaling. In some embodiments, the time point at which the second device sends the second signaling can be an absolute time point or a relative time point. For a detailed introduction to absolute time points and relative time points, please refer to the steps described above.

[0126] Optionally, in some embodiments, the third information may indicate a second time point, which may be the time point at which the second device sends the second signaling. In some embodiments, the third information may indicate a third duration, which may be the interval between the time point at which the second device receives the first signaling and the time point at which the second device sends the second signaling. Thus, the second device can determine the time point at which it sends the second signaling based on the time point at which it receives the first signaling and the third duration indicated by the third information.

[0127] Step 2106: The second device determines the fourth duration.

[0128] Optionally, in some embodiments, the fourth duration may be determined by the processing time of the second device on the first signaling. For example, the fourth duration may include at least one of the following: the duration required for the second device to process the first signaling, the duration required for the second device to process the information carried by the first signaling, the minimum duration required for the second device to process the first signaling, the minimum duration required for the second device to process the information carried by the first signaling, the maximum duration required for the second device to process the first signaling, and the maximum duration required for the second device to process the information carried by the first signaling.

[0129] Optionally, in some embodiments, the second device may determine the fourth duration based on a protocol agreement. For example, the fourth duration may be a fixed value agreed upon in the protocol. In other embodiments, the second device may determine the fourth duration based on the capabilities of the second device.

[0130] Optionally, the fourth duration can be measured by an absolute time unit, or it can be measured by a relative time unit. Optionally, the absolute time unit may include at least one of the following: hour, minute, second, millisecond, microsecond; and the relative time unit may include at least one of the following: radio frame, half frame, radio subframe, time slot, mini-time slot, time domain symbol.

[0131] Step 2107: The second device sends a second signaling message to the first device.

[0132] Optionally, the second signaling may be, for example, a response signaling to the aforementioned first signaling. Optionally, the content carried by the second signaling may be determined based on the information and / or data carried in the first signaling.

[0133] Optionally, in some embodiments, the second device may send the second signaling after a fixed interval value following the first signal reception time point. In some embodiments, the second device may determine the time point for sending the second signaling based on the third information and send the second signaling at that time point. For a detailed description of this part, please refer to the description of steps 2104 and 2105 above.

[0134] In some embodiments, a first duration may be spaced between the time when the first device sends the first signaling and the time when the first device receives the second signaling. Optionally, the first duration may satisfy at least one of the following: the first duration is not less than the second duration, or the first duration is greater than the second duration.

[0135] In some embodiments, a third duration may be spaced between the time when the second device receives the first signaling and the time when the second device sends the second signaling. The third duration may satisfy at least one of the following: the third duration is not less than the fourth duration, or the third duration is greater than the fourth duration.

[0136] In summary, in the above embodiments, it is ensured that the first duration is not less than the second duration and / or the first duration is greater than the second duration. The first duration is the interval between the time the first device sends the first signaling and the time the first device receives the second signaling, and the second duration is determined by the preparation time before the first device receives the second signaling. Therefore, in this embodiment, after the first device sends the first signaling, it does not immediately receive the second signaling, but rather receives it after a sufficient interval. This provides ample preparation time for receiving the second signaling, allowing the first device to fully perform the necessary preparation operations, ensuring accurate reception of the second signaling, and guaranteeing communication accuracy and stability.

[0137] Furthermore, in the above embodiments, it is ensured that the third duration is not less than the fourth duration and / or the third duration is greater than the fourth duration. The third duration is the interval between the time the second device receives the first signaling and the time the second device sends the second signaling, and the fourth duration is determined by the processing time of the second device for the first signaling. Therefore, in this embodiment of the present disclosure, after the second device receives the first signaling, it does not immediately send the second signaling, but rather sends it after a sufficient interval. This provides ample preparation time for processing the first signaling, allowing the second device to fully process the first signaling before sending the second signaling based on it, ensuring the accurate transmission of the second signaling and guaranteeing communication accuracy and stability.

[0138] The communication method involved in the embodiments of this disclosure may include at least one of steps 2101 to 2107. For example, step 2101 may be implemented as a standalone embodiment, step 2104 may be implemented as a standalone embodiment, step 2105 may be implemented as a standalone embodiment, and steps 2102+2107 may be implemented as standalone embodiments, but are not limited thereto.

[0139] In some embodiments, the order of steps 2101 and 2103 can be interchanged or they can be performed simultaneously; the order of steps 2102 and 2103 can be interchanged or they can be performed simultaneously; the order of steps 2104 and 2105 can be interchanged or they can be performed simultaneously; the order of steps 2104 and 2106 can be interchanged or they can be performed simultaneously; and the order of steps 2105 and 2106 can be interchanged or they can be performed simultaneously.

[0140] In some embodiments, steps 2101, 2104, 2105, and 2106 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0141] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0142] Figure 3 is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 3, the present disclosure relates to a communication method for a first device, the method comprising:

[0143] Step 3101: Send the first signaling to the second device.

[0144] Step 3102: Receive the second signaling sent by the second device.

[0145] Optionally, the second device is a device that communicates based on collected energy; wherein, the time interval between the time when the first device sends the first signaling and the time when the first device receives the second signaling is a first duration, the first duration satisfying that: the first duration is not less than a second duration; wherein, the second duration is determined by the preparation time of the first device before receiving the second signaling.

[0146] Optionally, the second duration includes at least one of the following:

[0147] The preparation time required for the first device to receive the second signaling;

[0148] The minimum preparation time required for the first device to receive the second signaling;

[0149] The maximum preparation time required for the first device to receive the second signaling;

[0150] The time required for the antenna of the first device to switch from transmitting to receiving state;

[0151] The minimum time required for the antenna of the first device to switch from transmitting to receiving state;

[0152] The maximum duration required for the antenna of the first device to switch from the transmitting state to the receiving state.

[0153] Optionally, the method further includes at least one of the following:

[0154] The second duration is determined based on the agreement.

[0155] The second duration is determined based on the capabilities of the first device.

[0156] Optionally, the first device supports simultaneously executing the sending step of the first signaling and the receiving step of the second signaling.

[0157] Optionally, the method further includes:

[0158] Send a first message to the network device, the first message being used to indicate whether the first device supports simultaneously executing the sending step of the first signaling and the receiving step of the second signaling.

[0159] Optionally, the method further includes one of the following:

[0160] The first device includes a first node for sending a first signal, and controls the first node to send the first signal at a first time point. The first signal is used to excite the second device to send the second signaling.

[0161] The first device does not include the first node, and sends second information to the network device, the second information being used to instruct the first node to send the first signal at the first time point.

[0162] Optionally, the method further includes:

[0163] Send a third message to the second device, the third message being used to indicate the time point at which the second device sends the second signaling.

[0164] For a detailed description of steps 3101-3102, please refer to the above embodiment description.

[0165] The communication method involved in the embodiments of this disclosure may include at least one of steps 3101 to 3102. For example, step 3101 may be implemented as an independent embodiment, step 3102 may be implemented as an independent embodiment, and steps 3101+3102 may be implemented as an independent embodiment, but are not limited thereto.

[0166] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0167] Figure 4 is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 4, the present disclosure relates to a communication method for a second device, the method comprising:

[0168] Step 4101: Receive the first signaling sent by the first device.

[0169] Step 4102: Send the second signaling to the first device.

[0170] Optionally, the second device is a device that communicates based on collected energy, wherein the time interval between the time when the second device receives the first signaling and the time when the second device sends the second signaling is a third duration, wherein the third duration is not less than a fourth duration; and the fourth duration is determined by the processing time of the second device for the first signaling.

[0171] Optionally, the fourth duration includes at least one of the following:

[0172] The time required for the second device to process the first signaling;

[0173] The time required for the second device to process the information carried by the first signaling;

[0174] The minimum time required for the second device to process the first signaling;

[0175] The minimum time required for the second device to process the information carried by the first signaling;

[0176] The maximum time required for the second device to process the first signaling;

[0177] The maximum time required for the second device to process the information carried by the first signaling.

[0178] Optionally, the method further includes at least one of the following:

[0179] The fourth duration is determined based on the agreement.

[0180] The fourth duration is determined based on the capabilities of the second device.

[0181] Optionally, the method further includes:

[0182] Receive the third information sent by the first device; determine the time point at which the second device sends the second signaling based on the third information.

[0183] For a detailed description of steps 4101-4102, please refer to the above embodiment description.

[0184] The communication method involved in the embodiments of this disclosure may include at least one of steps 4101 to 4102. For example, step 4101 may be implemented as a standalone embodiment, step 4102 may be implemented as a standalone embodiment, and steps 4101+4102 may be implemented as standalone embodiments, but are not limited thereto.

[0185] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0186] The following is an exemplary description of the above method.

[0187] Current Status of Internet of Things Development

[0188] Since 2010, technologies and standards related to the Internet of Things (IoT) have gradually developed. Among these, 3GPP standardized a series of IoT technologies, including MTC (Machine-Type Communications), NB-IoT (Narrow Band IoT), and RedCap (Reduced Capability UE). MTC and NB-IoT significantly reduced the cost of IoT terminals by employing technologies such as low bandwidth, single antenna, reduced peak data rate, half-duplex operation, and reduced transmit power. Furthermore, the introduction of eDRX (enhanced Discontinuous Reception) and PSM (Power Saving Mode) greatly reduced the power consumption of IoT terminals. Simultaneously, MTC and NB-IoT can support a large number of IoT terminals accessing the network, thus meeting the demand for massive connectivity.

[0189] NB-IoT is a low-power wide-area network (LPWAN) technology with key features such as low cost, low power consumption, strong coverage, and massive connectivity. It is largely based on the non-backward-compatible E-UTRA, with a coverage target of 164dB MCL, significantly enhancing indoor coverage and supporting a large number of low-throughput, low-latency-sensitive devices. NB-IoT supports three operating modes: in-band, standalone, and guardband. Its uplink and downlink RF bandwidths are both 180kHz. Downlink uses OFDMA technology based on a 15kHz subcarrier spacing, while uplink uses SC-FDMA technology, supporting both single-tone and multi-tone transmission. Enhanced versions of NB-IoT support a wealth of features including multi-carrier support, positioning, multicast, wake-up signals, and fast small data transmission, and can coexist with LTE and NR systems.

[0190] eMTC is an enhanced version of LTE-M (LTE-Machine-to-Machine), an IoT technology evolved from LTE. It is also a low-cost, low-power wide-area network technology. Compared to NB-IoT, eMTC has slightly weaker coverage, targeting an MCL of 156dB, but it can support higher transmission rates, some mobility, and voice services. eMTC has 1.4MHz uplink and downlink RF bandwidth and can support a maximum peak rate of 1Mbps.

[0191] RedCap, short for Reduced Capability, is a new technology standard based on 5G NR. Simply put, RedCap is a lightweight version of 5G. The large-scale industrial wireless sensor network (IWSN) use cases described by 5G requirements include not only the very demanding URLLC services, but also relatively low-end applications requiring small device size, support for fully wireless transmission, and battery life of several years. These applications have higher requirements than LPWA (i.e., LTE-M / NB-IoT), but lower than URLCC and eMBB. Furthermore, smart city surveillance cameras in 5G-required scenarios, as well as wearable device use cases such as smartwatches, electronic health-related devices, and medical monitoring equipment, all exhibit characteristics of small device size, simplified functionality, and the need to connect to the 5G radio access network and core network, urgently requiring the introduction of lower-cost, simplified 5G NR terminals. Therefore, 5G NR introduced the NR Redcap issue in Release 17 to complete all standardization content.

[0192] A-IoT technology

[0193] A-IoT is a novel Internet of Things (IoT) technology. Compared to traditional IoT technologies, a significant characteristic is the massive number of A-IoT terminals (A-IoT UEs, A-IoT devices, A-IoT Tags) in the network, enabling the inventory and monitoring of large-scale objects. A-IoT terminal devices can also be customized to meet different application needs, making A-IoT technology widely applicable and highly practical. Compared to NB-IoT terminals, A-IoT terminals have a simpler structure, lower hardware and maintenance costs, and the entire device may or may not include a power supply.

[0194] A-IoT devices can be categorized into Type 1, Type 2a, Type 2b, and Type 2c. Type 1 and 2a devices are passive, while Type 2b is an active device. Type 1 devices operate based on backscattering, exhibiting the lowest complexity and lowest power consumption. Type 2a devices support energy storage and operate based on backscattering; their complexity and power consumption are higher than Type 1 devices, offering some signal amplification while maintaining relatively low power consumption. Type 2b devices operate based on active transmission, possessing both signal amplification and active information transmission capabilities. Furthermore, Type 2c devices possess both active information transmission and backscattering capabilities. These devices can harvest energy from the environment to power normal uplink and downlink transmissions. Environmental energy includes natural energy sources such as solar, wind, and nuclear power, as well as artificial energy sources such as electromagnetic waves emitted by artificial devices.

[0195] Currently, two basic topology scenarios are supported. Referring to Figure 1B above, the A-IoT base station (or reader) and the A-IoT device are directly connected. Referring to Figure 1C above, the A-IoT device and the UE communicate with each other, with the UE acting as an intermediate node, sending data to the network side.

[0196] For devices that use backscattering for uplink transmission, a continuous wave (CW) energy source (CW node) is required to provide the electromagnetic waves for reflection during backscattering. The CW is typically of constant amplitude. A CW node can be a standalone node or a base station / intermediate node (e.g., a UE) that communicates with the device.

[0197] The frequency of the electromagnetic waves reflected by the device can be exactly the same as the frequency of the CW, or there can be some offset. The size of the offset is related to the hardware characteristics of the device. The offset may be a fixed value, or if the device hardware supports it, it may support multiple fixed values, or it may be a value that can be dynamically adjusted.

[0198] Currently, when the reader is a terminal device, the potential combinations of frequency bands for the reader's received / transmitted signals are as follows:

[0199] Option 1: The Reader sends R2D in the DL band and receives D2R in the UL band;

[0200] Option 2: The Reader sends R2D on the DL band and receives D2R on the DL band;

[0201] Option 3: The Reader sends R2D on the UL band and receives D2R on the UL band.

[0202] However, the following problems currently exist:

[0203] Question 1: How can we ensure that the device sends D2R data at a reasonable time?

[0204] Assuming the reader transmits and receives within the same attribute bandwidth, such as the DL or UL bandwidth, the reader needs to send R2D within that attribute bandwidth and simultaneously receive D2R transmitted / backscattered by the device within the same attribute bandwidth.

[0205] Referring to Figure 1D above, from the device's perspective, after receiving the R2D, the device needs to process the control information in the R2D, thus requiring a certain processing time. Sufficient time needs to be reserved before sending / backscattering the D2R. In the figure above, T0 is the time for the device to process the R2D, and T1 is the time interval between R2D and D2R. To ensure normal communication, T1 should not be less than T0.

[0206] Referring to Figure 1E above, from the reader's perspective, switching from transmit to receive mode also requires a certain processing time for antenna switching, etc. Sufficient time needs to be reserved before receiving the device's transmit / backscattered D2R. In the figure above, T2 is the preparation time required for the reader to switch antennas, etc., and T1 is the time interval between R2D and D2R. To ensure normal communication, T1 should not be less than T2.

[0207] Determining the relationship between T0, T2, and T1 is the key issue that needs to be addressed.

[0208] In addition, similar scenarios exist, assuming the reader sends and receives data at different attribute bandwidths, as shown in Figures 1F and 1G above.

[0209] Question 2: What is the reader's half-duplex / full-duplex capability?

[0210] For the same device, the operations performed by the reader are time-division multiplexed, meaning there will be no simultaneous sending and receiving. If multiple devices are involved, the reader may need to have full-duplex capabilities, and whether the reader possesses these capabilities is the basis for network devices to configure A-IoT communication resources for it.

[0211] This disclosure provides the following methods to solve the above problems.

[0212] Optional Example 1

[0213] In a network, IoT network devices communicate with IoT terminal devices. IoT network devices include base stations, intermediate nodes, and auxiliary nodes, while terminal devices are typically intermediate / auxiliary node devices. The types of IoT terminal devices include at least one of type 1, type 2a, type 2b, and type 2c. The IoT terminal device harvests energy from the environment to power its communication transmission. Environmental energy includes both natural and artificial energy. For example, the IoT terminal device can be a device, and the IoT network device can act as a reader.

[0214] An IoT terminal device receives a first downlink signaling message sent by an IoT network device. This first downlink signaling message carries downlink control information and / or data information. The IoT terminal device requires a first processing time to process the information carried by the first downlink signaling message. The first processing time is determined by at least one of the following methods:

[0215] Optional Example 1:

[0216] The time it takes for an IoT terminal device to process the first downlink signaling bearer information is called the first processing time. This first processing time can be measured using either an absolute time unit or a relative time unit. Absolute time units include hours, minutes, seconds, milliseconds, and microseconds. Relative time units include radio frames, half-frames, radio subframes, time slots, mini-time slots, and time-domain symbols.

[0217] Optional Example 2:

[0218] The minimum time required for an IoT terminal device to process the first downlink signaling bearer information is defined as the first processing time. This first processing time can be measured using either an absolute time unit or a relative time unit. Absolute time units include hours, minutes, seconds, milliseconds, and microseconds. Relative time units include radio frames, half-frames, radio subframes, time slots, mini-time slots, and time-domain symbols.

[0219] Optional Example 3:

[0220] The maximum time for an IoT terminal device to process the first downlink signaling bearer information is defined as the first processing time. This first processing time can be measured using either an absolute time unit or a relative time unit. Absolute time units include hours, minutes, seconds, milliseconds, and microseconds. Relative time units include radio frames, half-frames, radio subframes, time slots, mini-time slots, and time-domain symbols.

[0221] The first processing time can be a fixed value predefined by the protocol, or it can be determined based on the capabilities of the IoT terminal device.

[0222] The IoT terminal device receives a first downlink signaling message sent by the IoT network device, and then transmits / backscatters a first uplink signaling message based on the information in the first downlink signaling message. Further, the IoT terminal device receiving the first downlink signaling message sent by the IoT network device needs to satisfy a first delay before it can transmit / backscatter the first uplink signaling message. The relationship between the first delay and the first processing time includes at least one of the following:

[0223] The first delay is not less than the first processing time;

[0224] The first delay is greater than the first processing time.

[0225] Optional Example 2

[0226] In a network, IoT network devices communicate with IoT terminal devices. IoT network devices include base stations, intermediate nodes, and auxiliary nodes, while terminal devices are typically intermediate / auxiliary node devices. The types of IoT terminal devices include at least one of type 1, type 2a, type 2b, and type 2c. The IoT terminal device harvests energy from the environment to power its communication transmission. Environmental energy includes both natural and artificial energy. For example, the IoT terminal device can be a device, and the IoT network device can act as a reader.

[0227] An IoT network device receives a first uplink signaling from an IoT terminal device, the first uplink signaling carrying data sent by the IoT terminal device. The IoT network device requires a second processing time to switch from sending the first downlink signaling to receiving the first uplink signaling. The second processing time is determined by at least one of the following methods:

[0228] Optional Example 1:

[0229] The time it takes for an IoT network device to prepare to receive the first uplink signaling is called the second processing time. This second processing time can be measured in absolute or relative time units. Absolute time units include hours, minutes, seconds, milliseconds, and microseconds. Relative time units include radio frames, half-frames, radio subframes, time slots, mini-time slots, and time-domain symbols.

[0230] Optional Example 2:

[0231] The minimum time required for an IoT network device to prepare to receive the first uplink signaling is defined as the second processing time. This second processing time can be measured in absolute or relative time units. Absolute time units include hours, minutes, seconds, milliseconds, and microseconds. Relative time units include radio frames, half-frames, radio subframes, time slots, mini-time slots, and time-domain symbols.

[0232] Optional Example 3:

[0233] The maximum time for an IoT network device to prepare to receive the first uplink signaling is defined as the second processing time. This second processing time can be measured in absolute or relative time units. Absolute time units include hours, minutes, seconds, milliseconds, and microseconds. Relative time units include radio frames, half-frames, radio subframes, time slots, mini-time slots, and time-domain symbols.

[0234] Optional Example 4:

[0235] The time it takes for the first antenna of an IoT network device to switch from transmitting the first downlink signal to receiving the first uplink signal is defined as the second processing time. This second processing time can be measured using either an absolute time unit or a relative time unit. Absolute time units include hours, minutes, seconds, milliseconds, and microseconds. Relative time units include radio frames, half-frames, radio subframes, time slots, mini-time slots, and time-domain symbols.

[0236] Optional Example 5:

[0237] The minimum time it takes for the first antenna of an IoT network device to switch from transmitting the first downlink signal to receiving the first uplink signal is defined as the second processing time. This second processing time can be measured in absolute or relative time units. Absolute time units include hours, minutes, seconds, milliseconds, and microseconds. Relative time units include radio frames, half-frames, radio subframes, time slots, mini-time slots, and time-domain symbols.

[0238] Optional Example 6:

[0239] The maximum time it takes for the first antenna of an IoT network device to switch from transmitting the first downlink signal to receiving the first uplink signal is defined as the second processing time. This second processing time can be measured in absolute or relative time units. Absolute time units include hours, minutes, seconds, milliseconds, and microseconds. Relative time units include radio frames, half-frames, radio subframes, time slots, mini-time slots, and time-domain symbols.

[0240] The second processing time can be a fixed value predefined by the protocol, or it can be determined based on the capabilities of the IoT network device.

[0241] The IoT network device sends a first downlink signaling, and then receives a first uplink signaling transmitted / backscattered by the IoT terminal device. Further, the IoT network device needs to satisfy a second delay before it can receive the first uplink signaling transmitted / backscattered by the IoT terminal device. The relationship between the second delay and the second processing time includes at least one of the following:

[0242] The second delay is not less than the second processing time;

[0243] The second delay is greater than the second processing time.

[0244] Optional Example 3

[0245] In a network, IoT network devices communicate with IoT terminal devices. IoT network devices include base stations, intermediate nodes, and auxiliary nodes, while terminal devices are typically intermediate / auxiliary node devices. The types of IoT terminal devices include at least one of type 1, type 2a, type 2b, and type 2c. The IoT terminal device harvests energy from the environment to power its communication transmission. Environmental energy includes both natural and artificial energy. For example, the IoT terminal device can be a device, and the IoT network device can act as a reader.

[0246] The ability of an IoT network device to send R2D and receive D2R can be determined by at least one of the following methods:

[0247] Optional Example 1:

[0248] The protocol defines a first terminal capability, which is a capability that the terminal must support, and is used to indicate that the terminal can simultaneously send R2D and receive D2R.

[0249] Optional Example 2:

[0250] The protocol defines a first terminal capability, which indicates whether the terminal can simultaneously transmit R2D and receive D2R. This first terminal capability is reported by the terminal to the network device.

[0251] Optional Example 4

[0252] In a network, IoT network devices communicate with IoT terminal devices. IoT network devices include base stations, intermediate nodes, and auxiliary nodes, while terminal devices are typically intermediate / auxiliary node devices. The types of IoT terminal devices include at least one of type 1, type 2a, type 2b, and type 2c. The IoT terminal device harvests energy from the environment to power its communication transmission. Environmental energy includes both natural and artificial energy. For example, the IoT terminal device can be a device, and the IoT network device can act as a reader.

[0253] IoT network devices control D2R transmission time in at least one of the following ways:

[0254] Optional Example 1:

[0255] The IoT network device notifies the network device to request the network device to control the exact time when CWN is sent, thereby controlling the D2R backscatter start time.

[0256] Optional Example 2:

[0257] The IoT network device notifies the IoT terminal device, requesting the exact time when the IoT terminal device sends / backscatters D2R.

[0258] Therefore, the method provided in this disclosure can achieve at least one of the following:

[0259] Tx transmits and receives in different frequency bands (DL & UL), and the handover delay caused by terminal switching.

[0260] This delay needs to be less than the time interval between the DL control information and the D2R backscatter.

[0261] The network is notified to control the D2R backscattering initiation time via CWN.

[0262] The device is notified that it will delay backscattering.

[0263] This disclosure also proposes an apparatus (also referred to as a communication device, etc.) for implementing any of the above methods. For example, an apparatus is proposed that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Furthermore, another apparatus is proposed 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.

[0264] 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.

[0265] 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).

[0266] Figure 5A is a schematic diagram of the structure of the first device proposed in an embodiment of this disclosure. The first device is used to perform any of the above methods. In some embodiments, as shown in Figure 5A, the first device may include at least one of a transceiver module, a processing module, etc. The transceiver module is used to send a first signaling to a second device and receive a second signaling sent by the second device, wherein the second device is a device that communicates based on collected energy; wherein, the time interval between the time point when the first device sends the first signaling and the time point when the first device receives the second signaling is a first duration, the first duration satisfying that: the first duration is not less than a second duration; wherein, the second duration is determined by the preparation time of the first device before receiving the second signaling.

[0267] Optionally, the transceiver module is used to perform at least one of the communication steps such as sending and / or receiving performed by the first device in any of the above methods, which will not be elaborated here. Optionally, the processing module is used to perform at least one of the other steps performed by the first device in any of the above methods, which will not be elaborated here.

[0268] Optionally, the second duration includes at least one of the following:

[0269] The preparation time required for the first device to receive the second signaling;

[0270] The minimum preparation time required for the first device to receive the second signaling;

[0271] The maximum preparation time required for the first device to receive the second signaling;

[0272] The time required for the antenna of the first device to switch from transmitting to receiving state;

[0273] The minimum time required for the antenna of the first device to switch from transmitting to receiving state;

[0274] The maximum duration required for the antenna of the first device to switch from the transmitting state to the receiving state.

[0275] Optionally, the processing module is further configured to perform at least one of the following:

[0276] The second duration is determined based on the agreement.

[0277] The second duration is determined based on the capabilities of the first device.

[0278] Optionally, the first device supports simultaneously executing the sending step of the first signaling and the receiving step of the second signaling.

[0279] Optionally, the transceiver module is further configured to: send first information to the network device, the first information being used to indicate whether the first device supports simultaneously executing the sending step of the first signaling and the receiving step of the second signaling.

[0280] Optionally, the processing module is further configured to: include a first node for sending a first signal in the first device, control the first node to send the first signal at a first time point, and use the first signal to excite the second device to send the second signaling;

[0281] Optionally, the transceiver module is further configured to: send second information to the network device, wherein the first device does not include the first node, and the second information is used to instruct the first node to send the first signal at the first time point.

[0282] Optionally, the transceiver module is further configured to: send third information to the second device, the third information being used to indicate the time point at which the second device sends the second signaling.

[0283] Figure 5B is a schematic diagram of the structure of the second device proposed in an embodiment of this disclosure. The second device is used to perform any of the above methods. In some embodiments, as shown in Figure 5B, the second device may include at least one of a transceiver module, a processing module, etc. The transceiver module is used to receive a first signaling sent by the first device and send a second signaling to the first device; wherein, the second device is a device that communicates based on collected energy, and the time interval between the time point when the second device receives the first signaling and the time point when the second device sends the second signaling is a third time interval, the third time interval satisfying that: the third time interval is not less than a fourth time interval; the fourth time interval is determined by the processing time of the second device for the first signaling.

[0284] Optionally, the transceiver module is used to perform at least one of the communication steps such as sending and / or receiving performed by the second device in any of the above methods, which will not be elaborated here. Optionally, the processing module is used to perform at least one of the other steps performed by the second device in any of the above methods, which will not be elaborated here.

[0285] Optionally, the fourth duration includes at least one of the following:

[0286] The time required for the second device to process the first signaling;

[0287] The time required for the second device to process the information carried by the first signaling;

[0288] The minimum time required for the second device to process the first signaling;

[0289] The minimum time required for the second device to process the information carried by the first signaling;

[0290] The maximum time required for the second device to process the first signaling;

[0291] The maximum time required for the second device to process the information carried by the first signaling.

[0292] Optionally, the processing module is further configured to perform at least one of the following:

[0293] The fourth duration is determined based on the agreement.

[0294] The fourth duration is determined based on the capabilities of the second device.

[0295] Optionally, the transceiver module is further configured to: receive third information sent by the first device; and determine the time point at which the second device sends the second signaling based on the third information.

[0296] 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.

[0297] As shown in Figure 6A, the communication device 6100 is used to execute any of the above methods. In some embodiments, the communication device 6100 includes one or more processors 6101. The processor 6101 may be a general-purpose processor or a special-purpose processor, such as a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may 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 is used to execute any of the above methods. Optionally, one or more processors 6101 are used to invoke instructions to cause the communication device 6100 to execute any of the above methods.

[0298] 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 such as sending and / or receiving in the above-described method, and the processor 6101 performs at least one of the other steps. 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, transmitting unit, transmitter, transmitting circuit, etc., can be used interchangeably; the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.

[0299] In some embodiments, the communication device 6100 further includes one or more memories 6103 for storing data and / or instructions. Optionally, one or more processors 6101 are used to invoke instructions stored in the memory 6103 to cause the communication device 6100 to perform any of the above methods. Optionally, all or part of the memory 6103 may also be located outside the communication device 6100. In an optional embodiment, the communication device 6100 may include one or more interface circuits 6104. Optionally, the interface circuit 6104 is connected to the memory 6102 and can be used to receive data and / or instructions from the memory 6102 or other devices, and can be used to send data and / or instructions to the memory 6102 or other devices. For example, the interface circuit 6104 can read data and / or instructions stored in the memory 6102 and send the data and / or instructions to the processor 6101.

[0300] 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, programs and / or instructions; (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.

[0301] 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.

[0302] Chip 6200 includes one or more processors 6201. Chip 6200 is used to perform any of the methods described above.

[0303] 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 and / or instructions. Optionally, all or part of the memories 6203 may be located outside of chip 6200. Optionally, interface circuit 6202 is connected to memory 6203, and interface circuit 6202 can be used to receive data and / or instructions from memory 6203 or other devices, and interface circuit 6202 can be used to send data and / or instructions to memory 6203 or other devices. For example, interface circuit 6202 can read data and / or instructions stored in memory 6203 and send the data and / or instructions to processor 6201.

[0304] In some embodiments, the interface circuit 6202 performs at least one of the communication steps, such as sending and / or receiving, in the above-described method. For example, the interface circuit 6202 performing the communication steps, such as sending and / or receiving, in the above-described method means that the interface circuit 6202 performs data and / or instruction 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 the other steps.

[0305] 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.

[0306] This disclosure also proposes a storage medium storing instructions that, when executed on a communication device, cause the communication device 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.

[0307] This disclosure also proposes a program product, including a program and / or instructions, which, when executed by a communication device, cause the communication device to perform any of the above methods. Optionally, the program product is a computer program product. Optionally, the program product is stored on the storage medium.

[0308] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

[0309] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this disclosure are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program can be transferred from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVDs)), or semiconductor media (e.g., solid-state drives (SSDs)).

[0310] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0311] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0312] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A communication method, characterized in that, Performed by a first device, the method includes: Send a first signaling message to a second device and receive a second signaling message sent by the second device, wherein the second device is a device that communicates based on collected energy; Wherein, the time interval between the time when the first device sends the first signaling and the time when the first device receives the second signaling is a first duration, the first duration satisfies: the first duration is not less than a second duration; wherein, the second duration is determined by the preparation time of the first device before receiving the second signaling.

2. The method as described in claim 1, characterized in that, The second duration includes at least one of the following: The preparation time required for the first device to receive the second signaling; The minimum preparation time required for the first device to receive the second signaling; The maximum preparation time required for the first device to receive the second signaling; The time required for the antenna of the first device to switch from transmitting to receiving state; The minimum time required for the antenna of the first device to switch from transmitting to receiving state; The maximum duration required for the antenna of the first device to switch from the transmitting state to the receiving state.

3. The method as described in claim 1 or 2, characterized in that, The method further includes at least one of the following: The second duration is determined based on the agreement. The second duration is determined based on the capabilities of the first device.

4. The method according to any one of claims 1-3, characterized in that, The first device supports simultaneously executing the sending step of the first signaling and the receiving step of the second signaling.

5. The method as described in any one of claims 1-3, characterized in that, The method further includes: Send a first message to the network device, the first message being used to indicate whether the first device supports simultaneously executing the sending step of the first signaling and the receiving step of the second signaling.

6. The method according to any one of claims 1-5, characterized in that, The method also includes one of the following: The first device includes a first node for sending a first signal, and controls the first node to send the first signal at a first time point. The first signal is used to excite the second device to send the second signaling. The first device does not include the first node, and sends second information to the network device, the second information being used to instruct the first node to send the first signal at the first time point.

7. The method according to any one of claims 1-6, characterized in that, The method further includes: Send a third message to the second device, the third message being used to indicate the time point at which the second device sends the second signaling.

8. A communication method, characterized in that, Performed by a second device, the method includes: Receive the first signaling sent by the first device, and send the second signaling to the first device; The second device is a device that communicates based on collected energy. The time interval between the time when the second device receives the first signaling and the time when the second device sends the second signaling is a third time interval, wherein the third time interval is not less than a fourth time interval; the fourth time interval is determined by the processing time of the second device for the first signaling.

9. The method as described in claim 8, characterized in that, The fourth duration includes at least one of the following: The time required for the second device to process the first signaling; The time required for the second device to process the information carried by the first signaling; The minimum time required for the second device to process the first signaling; The minimum time required for the second device to process the information carried by the first signaling; The maximum time required for the second device to process the first signaling; The maximum time required for the second device to process the information carried by the first signaling.

10. The method as described in claim 8 or 9, characterized in that, The method further includes at least one of the following: The fourth duration is determined based on the agreement. The fourth duration is determined based on the capabilities of the second device.

11. The method according to any one of claims 8-10, characterized in that, The method further includes: Receive the third information sent by the first device; The timing of the second device sending the second signaling is determined based on the third information.

12. A first device, characterized in that, include: The transceiver module is used to send a first signaling to a second device and receive a second signaling sent by the second device, wherein the second device is a device that communicates based on collected energy. Wherein, the time interval between the time when the first device sends the first signaling and the time when the first device receives the second signaling is a first duration, the first duration satisfies: the first duration is not less than a second duration; wherein, the second duration is determined by the preparation time of the first device before receiving the second signaling.

13. A second device, characterized in that, include: The transceiver module is used to receive the first signaling sent by the first device and send the second signaling to the first device; The second device is a device that communicates based on collected energy. The time interval between the time when the second device receives the first signaling and the time when the second device sends the second signaling is a third time interval, wherein the third time interval is not less than a fourth time interval; the fourth time interval is determined by the processing time of the second device for the first signaling.

14. A first device, characterized in that, include: One or more processors; The first device is used to perform the method according to any one of claims 1 to 7.

15. A second device, characterized in that, include: One or more processors; The second device is used to perform the method according to any one of claims 8 to 11.

16. A communication system, characterized in that, The device includes a first device and a second device, wherein the first device is configured to implement the method according to any one of claims 1 to 7, and the second device is configured to implement the method according to any one of claims 8 to 11.

17. A storage medium storing instructions, characterized in that, When the instructions are executed on a communication device, the communication device performs the method as claimed in any one of claims 1 to 7 or 8 to 11.

18. A program product, characterized in that, It includes a computer program that, when executed by a communication device, implements the method as claimed in any one of claims 1 to 7 or 8 to 11.

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