Information transmission method and apparatus, and device and reader

Abstract

The present application belongs to the technical field of communications. Disclosed are an information transmission method and apparatus, and a device and a reader. A transmission monitoring method in the embodiments of the present application comprises: a first device monitoring a reader-to-device (R2D) transmission within a first time period, wherein the R2D transmission carries responses to N device-to-reader (D2R) transmissions, with N being a positive integer; the position of the first time period is associated with the N D2R transmissions or the length of the first time period is associated with the N D2R transmissions; and / or the R2D transmission further carries count information of the R2D transmission.

Description

Information transmission methods, devices, equipment and readers

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202510146635.0, filed in China on February 10, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application belongs to the field of communication technology, specifically relating to an information transmission method, apparatus, device, and reader / writer. Background Technology

[0004] In some technical systems, readers can communicate with one or more devices. After receiving a Device-to-Reader (D2R) transmission from a device, the reader often sends a response (also called a reply) to the device. For example, taking an Ambient IoT (A-IoT) device as an example, after receiving message 1 (msg1) from the A-IoT device, the reader will send a D2R transmission, which includes a response to msg1, such as sending message 2 (msg2); or, after receiving message 3 (msg3) from the A-IoT device, the reader will send a D2R transmission, which includes a response to msg3, such as sending message 4 (msg4). How the device can detect the responses sent by the reader is a pressing issue that needs to be addressed. Summary of the Invention

[0005] This application provides an information transmission method, apparatus, device, and reader / writer, which can solve the problem of how the device can monitor the response sent by the reader / writer.

[0006] Firstly, an information transmission method is provided, including:

[0007] The first device monitors the reader-to-device R2D transmission within a first time period. The R2D transmission carries responses to N device-to-reader D2R transmissions, where N is a positive integer.

[0008] Wherein, the position of the first time is associated with the N D2R transmissions or the length of the first time is associated with the N D2R transmissions;

[0009] And / or, the R2D transmission also carries R2D transmission counting information.

[0010] Secondly, an information transmission method is provided, including:

[0011] The reader receives D2R transmissions;

[0012] The reader sends a reader-to-device R2D transmission in the first time, the R2D transmission carrying responses to N device-to-reader D2R transmissions, where N is a positive integer;

[0013] Wherein, the position of the first time is associated with the N D2R transmissions or the length of the first time is associated with the N D2R transmissions;

[0014] And / or, the R2D transmission also carries R2D transmission counting information.

[0015] Thirdly, an information transmission device is provided, comprising:

[0016] The receiving module is used to monitor the reader-to-device R2D transmission in the first time, wherein the R2D transmission carries responses to N device-to-reader D2R transmissions, where N is a positive integer;

[0017] Wherein, the position of the first time is associated with the N D2R transmissions or the length of the first time is associated with the N D2R transmissions;

[0018] And / or, the R2D transmission also carries R2D transmission counting information.

[0019] Fourthly, an information transmission device is provided, comprising:

[0020] The receiving module is used to receive D2R transmissions;

[0021] The sending module is used to send reader-to-device R2D transmissions in the first time, wherein the R2D transmissions carry responses to N device-to-reader D2R transmissions, where N is a positive integer;

[0022] Wherein, the position of the first time is associated with the N D2R transmissions or the length of the first time is associated with the N D2R transmissions;

[0023] And / or, the R2D transmission also carries R2D transmission counting information.

[0024] Fifthly, an information transmission apparatus is provided, the apparatus being configured to perform the steps of the method described in the first aspect.

[0025] In a sixth aspect, an information transmission apparatus is provided, the apparatus being configured to perform the steps of the method described in the second aspect.

[0026] In a seventh aspect, an apparatus is provided, the apparatus including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.

[0027] Eighthly, a device is provided, including a processor and a communication interface, wherein the communication interface is used to monitor reader-to-device R2D transmissions in a first time period, the R2D transmissions carrying responses to N device-to-reader D2R transmissions, where N is a positive integer; wherein the position of the first time period is associated with the N D2R transmissions or the length of the first time period is associated with the N D2R transmissions; and / or, the R2D transmissions also carry counting information of the R2D transmissions.

[0028] In a ninth aspect, a reader / writer is provided, comprising a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the second aspect.

[0029] In a tenth aspect, a reader / writer is provided, including a processor and a communication interface, wherein the communication interface is used to receive D2R transmissions; send reader / writer to device R2D transmissions within a first time period, the R2D transmissions carrying responses to N device-to-reader D2R transmissions, where N is a positive integer; wherein the position of the first time period is associated with the N D2R transmissions or the length of the first time period is associated with the N D2R transmissions; and / or, the R2D transmissions also carry counting information of the R2D transmissions.

[0030] Eleventhly, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect.

[0031] In a twelfth aspect, a wireless communication system is provided, comprising: a device and a reader / writer, wherein the device is configured to perform the steps of the method as described in the first aspect, and the reader / writer is configured to perform the steps of the method as described in the second aspect.

[0032] In a thirteenth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run a program or instructions to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0033] In a fourteenth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the method as described in the first aspect, or the computer program / program product is executed by at least one processor to implement the steps of the method as described in the second aspect.

[0034] In this embodiment, a first device monitors reader-to-device R2D transmissions within a first time period. The R2D transmissions carry responses to N device-to-reader D2R transmissions, where N is a positive integer. The position of the first time period is associated with the N D2R transmissions, or the length of the first time period is associated with the N D2R transmissions. And / or, the R2D transmissions also carry count information for the R2D transmissions. This allows the device to monitor R2D transmissions within the first time period to detect responses sent by the reader. Furthermore, monitoring R2D transmissions within the first time period saves device power consumption. Since the R2D transmissions carry responses to N device-to-reader D2R transmissions, one R2D transmission can carry responses to multiple device-to-reader D2R transmissions, thus preventing the reader from sending too many R2D transmissions and saving reader power consumption. Attached Figure Description

[0035] Figure 1 is a block diagram of a wireless communication system applicable to an embodiment of this application;

[0036] Figure 2 is a schematic diagram of the interaction between a reader and a tag provided in an embodiment of this application;

[0037] Figure 3 is a flowchart of an information transmission method provided in an embodiment of this application;

[0038] Figures 4 to 7 are schematic diagrams of the reader response provided in the embodiments of this application;

[0039] Figure 8 is a flowchart of another information transmission method provided in an embodiment of this application;

[0040] Figures 9 and 10 are schematic diagrams of the reader response provided in the embodiments of this application;

[0041] Figure 11 is a structural diagram of an information transmission device provided in an embodiment of this application;

[0042] Figure 12 is a structural diagram of another information transmission device provided in an embodiment of this application;

[0043] Figure 13 is a structural diagram of a communication device provided in an embodiment of this application;

[0044] Figure 14 is a structural diagram of a terminal provided in an embodiment of this application;

[0045] Figure 15 is a structural diagram of a network-side device provided in an embodiment of this application. Detailed Implementation

[0046] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0047] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, the scope of protection for "A or B" covers at least three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. In addition, the terms "A and / or B," "at least one of A and B," and "at least one of A or B" also cover at least the above three scenarios. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0048] The term "instruction" in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction). A direct instruction can be understood as the sender explicitly informing the receiver of specific information, the required operation, or the requested result in the instruction sent. An indirect instruction can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the required operation or requested result based on the judgment result.

[0049] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), or other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0050] Figure 1 shows a block diagram of a wireless communication system applicable to an embodiment of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can also be referred to as User Equipment (UE), and can be a mobile phone, tablet computer, laptop computer, notebook computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR), virtual reality (VR) device, robot, wearable device, flight vehicle, vehicle user equipment (VUE), shipboard equipment, pedestrian user equipment (PUE), smart home (home devices with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game console, personal computer (PC), ATM, or self-service machine, etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among these, in-vehicle devices can also be referred to as in-vehicle terminals, in-vehicle controllers, in-vehicle modules, in-vehicle components, in-vehicle chips, or in-vehicle units, etc. It should be noted that the specific type of terminal 11 is not limited in this application embodiment. Network-side equipment 12 may include access network equipment or core network equipment, wherein access network equipment may also be referred to as Radio Access Network (RAN) equipment, radio access network function, or radio access network unit. Access network equipment may include base stations, Wireless Local Area Network (WLAN) access points (APs), or Wireless Fidelity (WiFi) nodes, etc.Among them, base stations can be referred to as Node B (NB), Evolved Node B (eNB), Next Generation Node B (gNB), New Radio Node B (NR Node B), Access Point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B, Transmit / Receive Point (TRP), Non-Terrestrial Network (NTN) equipment (such as satellite or high altitude platform stations). The term "base station" can be any suitable term in the field, such as "station" or any other appropriate term in the relevant field, as long as the same technical effect is achieved. The term "base station" is not limited to specific technical terms. It should be noted that the embodiments of this application only use the base station in the NR system as an example for introduction, and do not limit the specific type of base station.

[0051] Core network equipment, also known as core network nodes, core network functions, or core network elements, includes, but is not limited to, at least one of the following: Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (L-NEF), and Binding Support. Functions include BSF, Application Function (AF), Location Management Function (LMF), Gateway Mobile Location Centre (GMLC), Network Data Analytics Function (NWDAF), and Non-Terrestrial Network (NTN) equipment (such as satellite or high altitude platform station).It should be noted that the embodiments of this application only use the core network equipment in the NR system as an example for introduction, and do not limit the specific type of core network equipment. If the name of the core network equipment mentioned in the embodiments of this application changes in subsequent protocol versions (e.g., 6G), it is also within the scope of protection of this application.

[0052] Optionally, the core network equipment can be implemented by one or more functional modules in a single device, or by multiple devices working together; this application does not specifically limit this. It is understood that the aforementioned functional modules can be network elements in hardware devices, software functional modules running on dedicated hardware, or virtualized functional modules instantiated on a platform (e.g., a cloud platform).

[0053] In some embodiments, the device can be an Internet of Things (IoT) device, such as an Ambient IoT (A-IoT) device, and the A-IoT device can be characterized by its energy storage capacity and its ability to generate and transmit radio frequency signals. A-IoT devices include the following types:

[0054] Device A: No energy storage, no independent signal generation / amplification, i.e., backscatter transmission.

[0055] Device B: It has energy storage but no independent signal generation, i.e., backscatter transmission. The use of stored energy can include amplification of the reflected signal.

[0056] Device C: It has energy storage and independent signal generation, i.e., an active radio frequency component for transmission.

[0057] Devices with different energy storage capacities also affect their transmission quality. Generally, devices with higher energy storage capacity also mean higher receiving sensitivity or higher transmitting power, and the reliability of the receiving or transmitting link can be better guaranteed.

[0058] The main data / service types of A-IoT include:

[0059] Device-originated (DO);

[0060] Device-terminated (DT)

[0061] DO and DT data indicate that the data stream originates from or is transmitted to an A-IoT device (similar to a Radio Frequency Identification (RFID) tag). For data streams originating from A-IoT devices, i.e., DO data, further classification is as follows:

[0062] Device-originated access (DOA) means that the device autonomously initiates data transmission. For example, it connects a large number of various sensors, which collect and proactively report information about the environment, the device, and the organism when necessary.

[0063] Device-originated–device-terminated triggered (DO-DTT) refers to a data transfer service initiated by a device after data termination. Examples include asset identification, status reporting, and tracking, all of which involve downlink-triggered reporting. The reader collects data from the tag by triggering an inventory process. Since the data is generated / initiated within the A-IoT device, this service should be considered as a DO service initiated by the tag, triggered by a command sent by the reader.

[0064] In some embodiments, the general A-IoT process is shown in Figure 2, including the following steps:

[0065] Step A, A-IoT paging, is when the reader sends an A-IoT paging message to the device;

[0066] Step B, Device-to-Reader (D2R) data transmission, includes D2R data transmission and may also include an A-IoT random access procedure;

[0067] Step C, data transmission, can include R2D data transmission and D2R data transmission.

[0068] The inventory-only process includes: Step A + Step B;

[0069] The inventory and command process includes: Step A + Step B + Step C.

[0070] The information transmission method, apparatus, device, and reader provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0071] Please refer to Figure 3, which is a flowchart of an information transmission method provided in an embodiment of this application. As shown in Figure 3, it includes the following steps:

[0072] Step 301: The first device monitors the R2D transmission within a first time period. The R2D transmission carries responses to the D2R transmissions from N devices to the reader / writer, where N is a positive integer.

[0073] The method satisfies at least one of the following:

[0074] Wherein, the position of the first time is associated with the N D2R transmissions or the length of the first time is associated with the N D2R transmissions;

[0075] And / or, the R2D transmission also carries R2D transmission counting information.

[0076] The first device can be one of the N D2R transmissions, meaning that the N D2R transmissions include the D2R transmission sent by the first device. In some cases, the device corresponding to the N D2R transmissions may not include the first device. For example, the N D2R transmissions corresponding to one of the R2D transmissions detected in the first time may not include the D2R transmission sent by the first device, while the N D2R transmissions corresponding to another R2D transmission detected in the first time may include the D2R transmission sent by the first device.

[0077] In some implementations, the first device described above may be an Internet of Things (IoT) device, such as an A-IoT device.

[0078] In this embodiment of the application, monitoring can also be referred to as listening, surveillance, detection, or receiving.

[0079] In some implementations, the R2D transmission described above may be a Physical Reader-to-Device Control Channel (PRDCH).

[0080] In some implementations, the R2D transmission described above may include or carry one or more messages 2 (msg2) or 4 (msg4), specifically msg2 or msg4 during a random access procedure. Alternatively, the R2D transmission described above may be a multicast or broadcast R2D transmission, or it may be a response to a D2R transmission to a multicast or broadcast R2D transmission.

[0081] In some implementations, the aforementioned D2R transmission can be message 1 (msg1) or message 3 (msg3), specifically msg1 or msg3 during a random access process. Alternatively, the aforementioned D2R transmission can also be a D2R transmission for a specific multicast or broadcast R2D transmission. In some implementations, the aforementioned D2R transmission can be an actual D2R transmission that occurs or is actually received by the reader, a possible D2R transmission, or, in other words, a D2R resource. For example, some D2R resources may not have corresponding D2R transmissions, but the R2D transmission still provides a corresponding response, such as indicating that there is no ID or scheduling information corresponding to that D2R resource.

[0082] In this embodiment of the application, the above response may also be referred to as a reply.

[0083] The value of N can be a paging message, the R2D transmission, or an R2D transmission indication prior to the R2D transmission, or it can be a protocol-defined or pre-configured value.

[0084] The aforementioned R2D transmission carrying responses to N D2R transmissions can mean that the R2D transmission carries a single response, which is the response to all N D2R transmissions; that is, the responses to all N D2R transmissions are the same. In some implementations, it is also possible that the responses to these N D2R transmissions are different; that is, when N is greater than 1, the aforementioned responses to the N D2R transmissions include multiple responses. For example, assuming the D2R transmission is msg1, the R2D transmission may carry one or more msg2. The R2D transmission carries one msg2, which carries one or more responses to the N msg1s. This response may be a single response corresponding to different msg1s, or it may be multiple different responses each corresponding to different msg1s. Alternatively, an R2D transmission can carry multiple msg2s, each corresponding to a different msg1. The same applies when a D2R transmission is msg3 and an R2D transmission is msg4, or when a D2R transmission is a multicast or broadcast R2D transmission and an R2D transmission is a response to the D2R transmission.

[0085] It should be noted that, for msg2, the above R2D transmission may contain only one msg2 or may contain multiple msg2s; if it contains only one msg2, the technical solution described in the embodiments of this application can be regarded as the association relationship, behavior and content of msg2, etc.; if it contains multiple msg2s, the technical solution described in the embodiments of this application can be regarded as the management relationship behavior and content of R2D transmission, etc.

[0086] The aforementioned N D2R transmissions can be all the D2R transmissions corresponding to the aforementioned R2D transmissions, that is, the responses carried by the aforementioned R2D transmissions only include responses to the aforementioned N D2R transmissions; or, the aforementioned N D2R transmissions can be some of the D2R transmissions corresponding to the aforementioned R2D transmissions, that is, the responses carried by the aforementioned R2D transmissions only include responses to the aforementioned N D2R transmissions and other D2R transmissions, and can be one or more responses.

[0087] The association between the aforementioned first time location and the N D2R transmissions can be that the first time location is determined by all or part of the N D2R transmissions. For example, the starting point, ending point, or reference point of the first time is determined by all or part of the N D2R transmissions. If the starting point, ending point, or reference point of the first time is associated with the time domain or frequency domain position of all or part of the N D2R transmissions, such as a specific offset, this offset can be a protocol agreement or a network-side device or reader configuration. That is, the aforementioned first time location can be determined based on the time domain or frequency domain position of all or part of the N D2R transmissions.

[0088] In some implementations, the aforementioned offset may represent the offset (also known as delay) of the D2R transmission relative to a reference time-domain resource, and a first time can be determined based on the offset.

[0089] In some implementations, the aforementioned offset can be the time delay T between the R2D transmission and the corresponding D2R resource or transmission. D2R Alternatively, it could be the maximum delay T between the R2D transmission and the corresponding D2R resource or transmission. D2R_max Or minimum delay T D2R_min .

[0090] In this embodiment, since the location at the first time is associated with the N D2R transmissions, the device can determine the first time based on the D2R transmission resources and then monitor at the corresponding first time instead of monitoring at other times, thereby saving device power consumption. For example, when the location at the first time is associated with the D2R transmission sent by the device, the device can determine the corresponding first time based on its own D2R transmissions, thus monitoring its corresponding R2D transmission at the first time and saving device power consumption.

[0091] The above counting information is a count of R2D transmissions. These R2D transmissions are R2D transmissions that carry responses to N D2R transmissions. The value of N can be the same or different for different R2D transmissions.

[0092] The aforementioned counting information may be a count of R2D transmissions transmitted within the first time period, meaning that one or more R2D transmissions can be detected within the first time period. Alternatively, the aforementioned counting information may not be limited to R2D transmissions transmitted within the first time period, such as counting information of multiple R2D transmissions transmitted within the first time period.

[0093] In this embodiment of the application, since the R2D transmission includes counting information of R2D transmission, the device can monitor the corresponding number of R2D transmissions based on the counting information, without the need for continuous monitoring, thereby saving the power consumption of the device.

[0094] The length of the first time interval mentioned above can be associated with all or part of the N D2R transmissions. For example, N=8 can be composed of 4 time-domain positions and 2 frequency-domain positions, but the length is only affected by the number of time-domain positions, that is, the length of the first time interval is related to the 4 time-domain positions.

[0095] In this embodiment, since the length of the first time is associated with the N D2R transmissions, the device can determine the length of the first time based on the D2R transmission resources, and then perform monitoring during the first time, instead of monitoring during other times, in order to save the device's power consumption.

[0096] In some embodiments, the length of the first time period is a preset length or a configured length, which can be understood as the length of the first time period being agreed upon by the protocol, configured by the network-side device or the reader, or a pre-configured length.

[0097] When the length of the first time period is associated with the D2R transmission sent by the device or is a preset or configured length, this can prevent the device from monitoring the D2R transmission for too long a period of time, thereby further saving the device's power consumption.

[0098] It should be noted that in some implementations, the location at the first moment can be agreed upon by the protocol or pre-configured. In some implementations, the R2D transmission may not carry counting information, such as the number of R2D transmissions monitored by the device as agreed upon by the protocol or pre-configured. In some implementations, the device can decide on its own whether to continue monitoring R2D transmissions.

[0099] In this embodiment, the reader can send one or more R2D transmissions, each carrying a response to a D2R transmission. The number of D2R transmissions corresponding to the responses carried by different R2D transmissions can be the same or different, meaning the value of N corresponding to different R2D transmissions can be the same or different. When sending multiple R2D transmissions, only one of these transmissions may correspond to the aforementioned device, such as only one R2D transmission carrying a response to a D2R transmission sent by the aforementioned device. Alternatively, multiple R2D transmissions may correspond to the same first time interval, meaning the reader sends multiple R2D transmissions within a first time interval, and the aforementioned device monitors multiple R2D transmissions within that first time interval. Or, multiple R2D transmissions may be sent, but each R2D transmission corresponds to a different first time interval, meaning the reader sends multiple R2D transmissions within multiple first times, and the aforementioned device monitors multiple R2D transmissions within multiple first times. Optionally, if the aforementioned preset conditions are met, the aforementioned device may terminate monitoring early, meaning the aforementioned device does not need to monitor all R2D transmissions.

[0100] In this embodiment, the above steps enable the device to monitor R2D transmissions in the first instance to detect the responses sent by the reader. Furthermore, monitoring R2D transmissions in the first instance saves device power consumption. Since the R2D transmission carries responses to N device-to-reader D2R transmissions, and supports one R2D transmission carrying responses to multiple device-to-reader D2R transmissions, the reader avoids sending too many R2D transmissions, thus saving the reader's power consumption.

[0101] As an optional approach, the N D2R transmissions satisfy at least one of the following:

[0102] The N D2R transmissions of D2R resources belong to the same time domain location, or the N D2R transmissions of D2R resources belong to X1 time domain locations, where X1 is a paging message or an indication of the R2D transmission or an R2D transmission prior to the R2D transmission, or X1 is a protocol agreement or pre-configuration, and X1 is an integer greater than 1.

[0103] The N D2R transmissions of D2R resources belong to the same frequency domain location, or the N D2R transmissions of D2R resources belong to Y1 frequency domain locations, where Y1 is a paging message or an indication of the R2D transmission or the R2D transmission prior to the R2D transmission, or Y1 is a protocol agreement or pre-configuration, and Y1 is an integer greater than 1.

[0104] N≤M1, where M1 represents the number or maximum number of D2R resources included in a D2R resource group;

[0105] The D2R resources of the N D2R transmissions include a D2R resource group, and a D2R resource group includes M1 D2R resources.

[0106] The D2R resources of the N D2R transmissions include multiple D2R resource groups, and each D2R resource group includes M1 D2R resources.

[0107] In this embodiment of the application, "belonging to" can mean being in the same time domain position, such as the above-mentioned N D2R transmissions belonging to the same time domain position, the above-mentioned N D2R transmissions belonging to X1 time domain positions, the above-mentioned N D2R transmissions belonging to the same frequency domain position, and the above-mentioned N D2R transmissions belonging to Y1 frequency domain positions.

[0108] The fact that the D2R resources of the above N D2R transmissions belong to the same time domain location can be understood as N D2R transmissions using Frequency Division Multiplexing (FDM).

[0109] The value of X1 mentioned above can be a paging message, an R2D transmission, or an R2D transmission indication preceding the R2D transmission, or it can be a value agreed upon by the protocol or pre-configured. In some embodiments, 1 ≤ X1 ≤ Xmax, where Xmax is the maximum value of Time Division Multiple Access (TDMA) D2R resources allowed for one R2D transmission indication as specified by the protocol.

[0110] Since the D2R resources of the above N D2R transmissions belong to the same time domain location, or the D2R resources of the N D2R transmissions belong to X1 time domain locations, a single R2D transmission can be used to respond to D2R transmissions at the same time domain location or X time domain locations, thereby saving the transmission overhead of the reader / writer.

[0111] The fact that the D2R resources of the above N D2R transmissions belong to the same frequency domain location can be understood as N D2R transmissions using Time Division Multiplexing (FDM).

[0112] The value of Y1 mentioned above can be a paging message, the R2D transmission, or an R2D transmission indication prior to the R2D transmission, or it can be a value agreed upon by the protocol or pre-configured. In some implementations, 1≤Y1≤Ymax, where Ymax is the maximum value of frequency division multiple access (FDMA) D2R resources allowed by the protocol for one R2D indication.

[0113] Since the D2R resources of the above N D2R transmissions belong to the same frequency domain location, or the D2R resources of the N D2R transmissions belong to Y1 frequency domain locations, a single R2D transmission can be used to respond to D2R transmissions at the same frequency domain location or Y1 frequency domain locations, thereby saving the transmission overhead of the reader / writer.

[0114] The above D2R resource group is represented as Ngroup msg1 or D2R resource. The value of Ngroup is the same as the value of M1 above. That is, a D2R resource group includes Ngroup of D2R resources, or is used to send Ngroup of msg1.

[0115] The value of M1 can be a paging message, the R2D transmission, or an R2D transmission indication prior to the R2D transmission, or it can be a protocol-defined or pre-configured value.

[0116] Since N≤M1, we can use an R2D transmission to respond to D2R transmissions within M1, thus saving the transmission overhead of the reader / writer.

[0117] The above N D2R transmissions of D2R resources include a D2R resource group, or the N D2R transmissions of D2R resources belong to a D2R resource group or do not exceed a D2R resource group.

[0118] The aforementioned N D2R transmissions, comprising a D2R resource group, can be understood as the aforementioned R2D transmission carrying a response to a D2R transmission for a D2R resource group. Conversely, the aforementioned N D2R transmissions, comprising multiple D2R resource groups, can be understood as the aforementioned R2D transmission carrying a response to a D2R transmission for multiple D2R resource groups.

[0119] Since the D2R resources of N D2R transmissions include one or more D2R resource groups, a single R2D transmission can be used to respond to a D2R transmission for one or more D2R resource groups, thus saving the transmission overhead of the reader / writer.

[0120] In some embodiments, the aforementioned D2R resource group includes M1 D2R resources at X2 time-domain locations, where X2 is an integer greater than or equal to 1; or, the D2R resource group includes M1 D2R resources at Y2 frequency-domain locations, where Y2 is an integer greater than or equal to 1; and / or,

[0121] The one or more D2R resource groups are those that are traversed first in the frequency domain and then in the time domain; or, the one or more D2R resource groups are those that are traversed first in the time domain and then in the frequency domain; and / or,

[0122] A D2R resource group consists of M1 D2R resources that are first traversed in the frequency domain and then in the time domain, or a D2R resource group consists of M1 D2R resources that are first traversed in the time domain and then in the frequency domain.

[0123] The values ​​of X2 and Y2 can be paging messages, R2D transmissions, or R2D transmission indications prior to the R2D transmissions, or they can be agreed upon by the protocol or pre-configured.

[0124] Taking Figure 4 as an example, a D2R resource group includes two D2R resources at two time-domain locations, that is, X2 and M1 above equal to 2. Taking Figure 5 as an example, there are two D2R resource groups, each of which includes two D2R resources at two frequency-domain locations, that is, Y2 and M1 above equal to 2.

[0125] The aforementioned one or more D2R resource groups that are first traversed in the frequency domain and then in the time domain refer to the following: First, starting from the first time domain position, M1 D2R resources are determined in the frequency domain to obtain a D2R resource group; or, starting from the first time domain position, a portion of the M1 D2R resources are determined in the frequency domain, and then the remaining portion is determined in the second time domain position to obtain a D2R resource group. As shown in Figure 6, two D2R resource groups are determined, one of which includes the following two D2R resources, namely msg1. The D2R resource group includes the two D2R resources above, namely the D2R resources corresponding to msg3# and msg#4; or, as shown in Figure 7, it includes three D2R resource groups: one D2R resource group includes the two D2R resources below, namely the D2R resources corresponding to msg1# and msg#2; another D2R resource group includes the D2R resources corresponding to msg3# and msg#4; and a third D2R resource group includes the D2R resources corresponding to msg5# and msg#6.

[0126] Since frequency domain traversal is performed before time domain traversal, D2R resources at the same time domain location can be prioritized and grouped into a D2R resource group. This allows multiple D2R transmissions at the same time domain location to be responded to using a single R2D, thus saving the power consumption of the reader / writer.

[0127] The aforementioned one or more D2R resource groups that are first traversed in the time domain and then in the frequency domain refer to either first determining M1 D2R resources in the frequency domain starting from the first frequency domain position to obtain a D2R resource group, or determining a portion of the M1 D2R resources in the frequency domain starting from the first frequency domain position and then determining the remaining portion in the second frequency domain position to obtain a D2R resource group.

[0128] Since the time domain is traversed first and then the frequency domain is traversed, D2R resources with the same frequency domain location can be preferentially grouped into a D2R resource group. This allows multiple D2R transmissions with the same frequency domain location to be responded to using a single R2D, thus saving the power consumption of the reader / writer.

[0129] The above implementation supports multiple forms of D2R resource groups, thereby enabling more flexible responses.

[0130] In some implementations, D2R transmissions at the same time domain location correspond to the same response, or the first time associated with D2R transmissions at the same time domain location is the same or partially overlaps; or,

[0131] D2R transmissions at the X1 time-domain locations correspond to the same response, or the first time associated with the D2R transmissions at the X1 time-domain locations is the same or partially overlaps; or...

[0132] D2R transmissions at the Y1 frequency domain positions correspond to the same response, or the first time associated with D2R transmissions at the Y1 frequency domain positions is the same or partially overlaps; or...

[0133] The responses of D2R transmissions within a D2R resource group are the same, or the first time of association of D2R transmissions corresponding to D2R resources within the same D2R resource group is the same or partially overlaps.

[0134] In the above implementation, N D2R transmissions can correspond to the same response, that is, the above R2D transmission only needs to carry one response for the above N D2R transmissions, so as to save the overhead of R2D transmission.

[0135] In addition, the above-mentioned first time being the same can mean that the reference point, start point or end point of the first time is the same, but the length can be the same or different, or the position of the first time is exactly the same; the above-mentioned first time partially overlapping can mean that the first part or the second part of the first time overlaps.

[0136] The first time that is the same or partially overlapped in the D2R transmissions associated with the above-mentioned D2R transmissions at the same time domain location can be the first time that is the same or partially overlapped in the response of the D2R transmissions at the same time domain location, that is, the first time that the reader sends the response of the D2R transmission at the same time domain location is the same or partially overlapped.

[0137] The first time that is the same or partially overlapped in the D2R transmissions associated with the above-mentioned X1 time domain locations can be the first time that is the same or partially overlapped in the response of the D2R transmissions at the X1 time domain locations, that is, the first time that the reader sends the response of the D2R transmission at the X1 time domain locations is the same or partially overlapped.

[0138] The first time that is the same or partially overlapped in the D2R transmission associated with the above-mentioned Y1 frequency domain positions can be the first time that is the same or partially overlapped in the response of the D2R transmission at the Y1 frequency domain positions, that is, the first time that the reader sends the response of the D2R transmission at the Y1 frequency domain positions is the same or partially overlapped.

[0139] The first time of association of D2R transmissions corresponding to D2R resources within the same D2R resource group being the same or partially overlapping can be the first time of the response corresponding to the D2R transmission within the same D2R resource group being the same or partially overlapping, that is, the first time of the reader sending the response to the D2R transmission corresponding to the D2R resource within the same D2R resource group being the same or partially overlapping.

[0140] By having the first time be the same or partially overlapped, the reader can send responses more efficiently. If the first time is the same, the responses of these D2R transmissions can be sent together, or only one response can be sent.

[0141] As an optional implementation, associating the location of the first time with the N D2R transmissions includes:

[0142] The start point, end point, or reference point of the first time is associated with the N D2R transmissions.

[0143] The association between the starting point, ending point, or reference point of the first time and the N D2R transmissions can be all or part of the association between the starting point, ending point, or reference point of the first time and the N D2R transmissions.

[0144] In some implementations, associating the starting point or reference point of the first time location with the N D2R transmissions may include one of the following:

[0145] The start point, end point, or reference point of the first time is associated with the time domain location of the N D2R transmissions, wherein the D2R resources of the N D2R transmissions are located at the same time domain location;

[0146] The start point, end point, or reference point of the first time is associated with the first time domain position among the N D2R resources transmitted by D2R, wherein the N D2R resources transmitted by D2R belong to X1 time domain positions, and X1 is an integer greater than 1.

[0147] The start point, end point, or reference point of the first time is associated with the time domain position of the D2R transmission located at the first frequency domain position among the N D2R transmissions, wherein the N D2R transmissions are located at Y1 frequency domain positions, where Y1 is an integer greater than 1.

[0148] The start point, end point, or reference point of the first time is associated with the temporal location of one or more D2R resource groups, wherein the D2R resources transmitted by the N D2Rs include one or more D2R resource groups, and each D2R resource group includes M1 D2R resources, where M1 is an integer greater than 1.

[0149] The association between the starting point, ending point, or reference point of the first time and the time-domain location of N D2R transmissions can be that there is a specific offset between the time-domain location of the N D2R transmissions and the starting point, ending point, or reference point of the first time. This offset can be agreed upon by the protocol, configured by the network-side device, or configured by the reader, etc., or the time-domain location of the N D2R transmissions can be the reference point of the first time.

[0150] The first time-domain position among the D2R resources of the aforementioned N D2R transmissions can be the time-domain position among the specific D2R resources of the N D2R transmissions. Specifically, the aforementioned first time-domain position can be determined based on protocol agreement or network-side device or reader configuration. For example, N D2R transmissions are in 4 frequency domain positions, but the time-domain position of the D2R transmissions at positions 2 and 3 determines the start point, end point, or reference point of the first time.

[0151] The aforementioned first frequency domain position can be the frequency domain position of a specific D2R transmission. Specifically, the aforementioned first frequency domain position can be determined based on protocol agreement or network-side device or reader configuration.

[0152] In the above embodiments, since the start point, end point, or reference point of the first time is associated with the N D2R transmissions, the first time can be accurately determined, so that the device can better monitor the R2D transmissions.

[0153] As an optional implementation, the counting information is used to indicate the number or maximum number of subsequent R2D transmissions sent by the reader, or the counting information is used to indicate the value obtained by adding K to the number or maximum number of subsequent R2D transmissions sent by the reader, where K is a positive integer.

[0154] The aforementioned counting information, used to indicate the number of subsequent R2D transmissions sent by the reader, can be understood as follows: the counting information carried by the R2D transmission does not indicate the R2D transmission itself, but only the number of subsequent R2D transmissions sent by the reader; that is, the counting information does not indicate the current R2D transmission.

[0155] The value obtained by adding K to the number of subsequent R2D transmissions or the maximum number of subsequent R2D transmissions refers to the value obtained by adding K to the number of subsequent R2D transmissions or the value obtained by adding K to the maximum number of subsequent R2D transmissions.

[0156] The above number or maximum number can be understood as the number or maximum number of R2D transmissions measured or decoded.

[0157] The value of K mentioned above can be a paging message, an R2D transmission, or an R2D transmission indication preceding the R2D transmission, or it can be a protocol-defined or pre-configured value. In some embodiments, the value of K is 1.

[0158] The aforementioned counting information is used to indicate the number of subsequent R2D transmissions sent by the reader. The value obtained by adding K can be understood as the counting information carried by the R2D transmission indicating the R2D transmission and indicating the number of subsequent R2D transmissions sent by the reader. In other words, the counting information indicates the current R2D transmission.

[0159] In the above embodiments, the number of R2D transmissions sent by the reader can be determined in two ways so that the device can stop monitoring in time when the last one is detected, thereby saving the device's power consumption.

[0160] As an optional implementation, the reader sends an R2D transmission carrying the counting information; or,

[0161] Each of the multiple R2D transmissions sent by the reader carries the counting information.

[0162] That is, the counting information is carried in one R2D transmission detected by the first device, or the counting information is carried in every R2D transmission detected by the first device.

[0163] In this embodiment, the counting information can be included in only one R2D transmission, which can reduce the overhead of other R2D transmissions. When the counting information is included in every R2D transmission, the device can avoid missing a certain R2D transmission and thus failing to obtain the counting information, thereby improving the reliability of the counting information transmission.

[0164] As an optional implementation, the method further includes:

[0165] The first device monitors R2D transmission based on the counting information.

[0166] The aforementioned device monitors R2D transmissions based on the counting information. This means that the device has determined, through the counting information carried in the detected R2D transmissions, that the reader / writer will send further R2D transmissions, and thus performs monitoring. For example, if the counting information indicates A, then it continues to detect A or AX transmissions, and then stops monitoring. Here, X can be 1, or X can be equal to X1, X2, Y1, Y2, M1, or N in the above embodiments, or X can be a protocol-defined or pre-indicated value. In some embodiments, X is the number of responses or msg2 messages carried in the R2D transmission.

[0167] Specifically, the device can monitor R2D transmissions based on the counting information if the response carried by the monitored R2D transmission is not the response of the D2R transmission sent by the device. If the response carried by the monitored R2D transmission is that of the device, then monitoring will stop.

[0168] Since the above-mentioned device monitors R2D transmission based on the counting information, this enables the device to better detect the corresponding R2D transmission.

[0169] As an optional implementation, the method further includes:

[0170] The first device updates the R2D transmission count based on the monitored R2D transmissions, wherein monitoring of R2D transmissions is stopped when the R2D transmission count is a first preset value.

[0171] The aforementioned update of the R2D transmission count based on the monitored R2D transmissions can be based on updating the R2D transmission count locally maintained by the device.

[0172] The aforementioned first preset value indicates that all R2D transmissions sent by the reader have been completed. The aforementioned first preset value is 0, -1, or <0, which may be determined by the protocol or configured by the network-side device or the reader.

[0173] In the above embodiments, monitoring of R2D transmission is stopped when the R2D transmission count reaches a first preset value, which allows the device to stop monitoring in a timely manner, thereby saving the device's power consumption.

[0174] As an optional implementation, the method further includes:

[0175] When the R2D transmission carries the counting information and the counting information indicates a second preset value, the first device stops monitoring the R2D transmission.

[0176] The first preset value mentioned above indicates that all R2D transmissions sent by the reader have been completed. The second preset value mentioned above is 0, -1, or <0, which may be agreed upon by the protocol or configured by the network-side device or the reader.

[0177] In this embodiment, the device can stop monitoring R2D transmission directly based on the detected R2D transmission count information without maintaining a local counter, thereby saving the device's power consumption.

[0178] As an optional implementation, the method further includes:

[0179] When preset conditions are met, the first device stops monitoring the R2D transmission.

[0180] The aforementioned preset conditions can be conditions agreed upon in the protocol, configured by the network-side device, or configured by the reader / writer. Examples include detecting an R2D transmission carrying a response to the D2R transmission sent by the aforementioned device, detecting other R2D transmissions without a D2R transmission response, or the count value updated based on the aforementioned counting information reaching a preset value. For details, please refer to the specific implementation methods below. It is worth noting that the embodiment where the first device stops monitoring R2D transmissions when the preset conditions are met can be implemented independently without relying on the above-described scheme based on monitoring R2D at the first moment. For the sake of brevity, it will not be shown separately.

[0181] When preset conditions are met, the first device stops monitoring the R2D transmission, which allows the device to end monitoring early and further save power consumption.

[0182] It should be noted that in some embodiments, in the above information transmission method, when the preset conditions are met, the first device stops monitoring the R2D transmission, which may not be related to the feature corresponding to step 301 above. For example, one embodiment includes the following:

[0183] The first device monitors the reader-to-device R2D transmission within a first time period. The R2D transmission carries responses to N device-to-reader D2R transmissions, where N is a positive integer.

[0184] When preset conditions are met, the first device stops monitoring the R2D transmission.

[0185] In this embodiment, the position of the first time may or may not be associated with the N D2R transmissions, or the length of the first time may or may not be associated with the N D2R transmissions; the R2D transmission may or may not carry R2D transmission counting information.

[0186] In some implementations, the preset conditions include at least one of the following:

[0187] The first device receives a signal or information from the reader indicating to stop monitoring;

[0188] The first device did not detect the R2D transmission corresponding to the first device;

[0189] Carrier wave (CW) detected;

[0190] R2D transmissions without a response to D2R transmissions were detected;

[0191] D2R transmissions were detected for other devices (such as a second device).

[0192] The aforementioned signal or information indicating the cessation of monitoring may be specifically used to indicate the cessation of monitoring, or the aforementioned information indicating the cessation of monitoring may include the counting information.

[0193] In this context, the R2D transmission corresponding to the aforementioned device may refer to the response carried being a response to the D2R transmission sent by the aforementioned device.

[0194] The R2D transmissions that do not carry a response to the D2R transmission can be R2D transmissions that are not msg2 or msg4, for example, at least one of the following:

[0195] Paging messages, Query, QueryX, QueryRep, R2D command, R2D preamble, and sync signal.

[0196] D2R transmissions corresponding to other devices can refer to transmissions that carry responses that are responses to D2R transmissions sent by other devices.

[0197] In the above embodiments, monitoring can be stopped based on at least one of the above-mentioned methods to save power consumption of the device.

[0198] As an optional implementation, the length of the first time interval associated with the N D2R transmissions includes:

[0199] The length of the first time period is associated with at least one of the following:

[0200] The number of D2R resources for the N D2R transmissions in TDM;

[0201] The number of D2R resources for the N D2R transmissions in FDM;

[0202] N;

[0203] X3, the N D2R resources transmitted are in the same time domain position, or the N D2R resources transmitted belong to X3 time domain positions, where X3 is a paging message or an indication of the R2D transmission or the R2D transmission before the R2D transmission, or X3 is a protocol agreement or pre-configuration, and X3 is an integer greater than or equal to 1.

[0204] Y3, the D2R resources of the N D2R transmissions belong to Y3 frequency domain positions, Y3 is a paging message or an indication of the R2D transmission or the R2D transmission before the R2D transmission, or Y3 is a protocol agreement or pre-configuration, and Y3 is an integer greater than or equal to 1;

[0205] M2, the D2R resources of the N D2R transmissions include one or more D2R resource groups, and each D2R resource group includes M2 D2R resources;

[0206] X4, the D2R resources of the N D2R transmissions include at least one D2R resource group, and each D2R resource group includes D2R resources at X4 time-domain locations, where X4 is an integer greater than 1;

[0207] Y4, the D2R resources of the N D2R transmissions include one or more D2R resource groups, and a D2R resource group has M2 D2R resources at Y4 frequency domain positions, where Y4 is an integer greater than 1;

[0208] Where M2 is an integer greater than 1.

[0209] Among them, X3, Y3, M2, X4, and Y4 correspond to X1, Y1, M1, X2, and Y2 respectively. For example, X3 can be the same as or different from X1, Y3 can be the same as or different from Y1, M2 can be the same as or different from M1, X4 can be the same as or different from X2, and Y4 can be the same as Y2.

[0210] In some embodiments, X1, X2, X3, and X4 can be the same parameter quantity or different parameter quantities, and their values can be different; Y1, Y2, Y3, and Y4 can be the same parameter quantity or different parameter quantities, and their values can be different. The above M1 and M2 can be the same parameter quantity or different parameter quantities, and their values can be different.

[0211] The relationship between at least one of the above and the length of the above first time can be agreed upon by the protocol or configured by the network-side device or the reader / writer. For example:

[0212] For example, different durations correspond to N = 1 and N > 1;

[0213] For example, different durations correspond to X3 = 1 and X3 > 1;

[0214] For example, different durations correspond to Y3 = 1 and Y3 > 1;

[0215] For example, different durations correspond to X4 = 1 and X4 > 1;

[0216] For example, different durations correspond to Y4 = 1 and Y4 > 1; ]>

[0217] For example, different durations correspond to M2 ≤ T and M2 > T;

[0218] For example, different durations correspond to M2 < T and M2 ≥ T;

[0219] Where T represents the length agreed upon by the protocol or pre-configured, or indicated by the reader / writer.

[0220] Or different combinations of X3 and Y3 correspond to different durations, or different combinations of X4 and Y4 correspond to different durations.

[0221] In the above embodiments, the length of the first time can be flexibly set according to the actual situation so that the device can better monitor the R2D transmission.

[0222] In the embodiments of the present application, the different durations of the above first time can be corresponding different duration values, or can be corresponding different duration information of the first time, but it is not limited whether the duration values of these first durations are equivalent.

[0223] As an optional embodiment, the length of the first time being a preset length or a configured length includes:

[0224] The length of the first time is the length agreed upon by the protocol; or,

[0225] The length of the first time is the pre-configured length; or,

[0226] The length of the first time period is the length configured by the network-side device or reader.

[0227] In some implementations, if the first device does not obtain the length of the first time configured by the reader / writer, the length of the first time is the length agreed upon in the protocol or the pre-configured length.

[0228] In the above embodiments, multiple methods are supported to configure the length of the first time, so that the device can better monitor R2D transmission.

[0229] In this embodiment, a first device monitors reader-to-device R2D transmissions within a first time period. The R2D transmissions carry responses to N device-to-reader D2R transmissions, where N is a positive integer. The position of the first time period is associated with the N D2R transmissions, or the length of the first time period is associated with the N D2R transmissions. And / or, the R2D transmissions also carry R2D transmission count information. This allows the device to monitor R2D transmissions within the first time period to detect responses sent by the reader. Furthermore, monitoring R2D transmissions within the first time period saves device power consumption. Since the R2D transmissions carry responses to N device-to-reader D2R transmissions, one R2D transmission can carry responses to multiple device-to-reader D2R transmissions, thus preventing the reader from sending too many R2D transmissions and saving reader power consumption.

[0230] Please refer to Figure 8, which is a flowchart of another information transmission method provided in an embodiment of this application. As shown in Figure 8, it includes the following steps:

[0231] Step 801: The reader receives D2R transmission.

[0232] The reader can receive N D2R transmissions, or at least N D2R transmissions, and can also receive D2R transmissions in addition to the N D2R transmissions.

[0233] Step 801: The reader sends an R2D transmission within the first time period. The R2D transmission carries responses to D2R transmissions from N devices to the reader, where N is a positive integer.

[0234] Wherein, the position of the first time is associated with the N D2R transmissions or the length of the first time is associated with the N D2R transmissions;

[0235] And / or, the R2D transmission also carries R2D transmission counting information.

[0236] Optionally, the N D2R transmissions satisfy at least one of the following:

[0237] The N D2R transmissions of D2R resources belong to the same time domain location, or the N D2R transmissions of D2R resources belong to X1 time domain locations, where X1 is a paging message or an indication of the R2D transmission or an R2D transmission prior to the R2D transmission, or X1 is a protocol agreement or pre-configuration, and X1 is an integer greater than 1.

[0238] The N D2R transmissions of D2R resources belong to the same frequency domain location, or the N D2R transmissions of D2R resources belong to Y1 frequency domain locations, where Y1 is a paging message or an indication of the R2D transmission or the R2D transmission prior to the R2D transmission, or Y1 is a protocol agreement or pre-configuration, and Y1 is an integer greater than 1.

[0239] N <= M1, where M1 represents the number or maximum number of D2R resources included in a D2R resource group;

[0240] The D2R resources of the N D2R transmissions comprise a D2R resource group, and each D2R resource group comprises M1 D2R resources.

[0241] The D2R resources of the N D2R transmissions include multiple D2R resource groups, and each D2R resource group includes M1 D2R resources.

[0242] Optionally, the D2R resource group includes M1 D2R resources at X2 time-domain locations, where X2 is an integer greater than 1; or, the D2R resource group includes M1 D2R resources at Y2 frequency-domain locations, where Y2 is an integer greater than 1; and / or,

[0243] The one or more D2R resource groups are those that are traversed in the frequency domain first and then in the time domain, or the one or more D2R resource groups are those that are traversed in the time domain first and then in the frequency domain.

[0244] Optionally, at least one of N, X1, Y1, M1, X2, and Y2 is a paging message, or the R2D transmission, or an R2D transmission indication prior to the R2D transmission; or,

[0245] At least one of N, X1, Y1, M1, X2, and Y2 is a protocol agreement or pre-configuration.

[0246] Optionally, D2R transmissions at the same time domain location correspond to the same response, or the first time associated with D2R transmissions at the same time domain location is the same; or,

[0247] D2R transmissions at the X1 time-domain locations correspond to the same response, or the first time associated with the D2R transmissions at the X1 time-domain locations is the same; or...

[0248] D2R transmissions at the Y1 frequency domain positions correspond to the same response, or the first time associated with the D2R transmissions at the Y1 frequency domain positions is the same; or...

[0249] The responses of D2R transmissions corresponding to D2R resources within the same D2R resource group are the same, or the first time associated with D2R transmissions corresponding to D2R resources within the same D2R resource group is the same.

[0250] Optionally, associating the location of the first time with the N D2R transmissions includes:

[0251] The start point, end point, or reference point of the first time is associated with the N D2R transmissions.

[0252] Optionally, the association of the start point or reference point of the first time with the N D2R transmissions includes one of the following:

[0253] The start point, end point, or reference point of the first time is associated with the time domain location of the N D2R transmissions, wherein the D2R resources of the N D2R transmissions are located at the same time domain location;

[0254] The start point, end point, or reference point of the first time is associated with the first time domain position among the N D2R resources transmitted by D2R, wherein the N D2R resources transmitted by D2R belong to X1 time domain positions, and X1 is an integer greater than 1.

[0255] The start point, end point, or reference point of the first time is associated with the time domain position of the D2R transmission located at the first frequency domain position among the N D2R transmissions, wherein the N D2R transmissions are located at Y1 frequency domain positions, where Y1 is an integer greater than 1.

[0256] The starting point, ending point, or reference point of the first time location is associated with the temporal location of one or more D2R resource groups, wherein the D2R resources of the N D2R transmissions include one or more D2R resource groups, and each D2R resource group includes M1 D2R resources, where M1 is an integer greater than 1.

[0257] Optionally, the counting information is used to indicate the number or maximum number of subsequent R2D transmissions sent by the reader, or the counting information is used to indicate the value obtained by adding K to the number or maximum number of subsequent R2D transmissions sent by the reader, where K is a positive integer.

[0258] Optionally, the reader sends an R2D transmission carrying the counting information; or,

[0259] Each of the multiple R2D transmissions sent by the reader carries the counting information.

[0260] Optionally, the method further includes at least one of the following:

[0261] The reader updates the count of R2D transmissions based on the transmitted R2D transmissions;

[0262] The reader sends a signal or message to the device instructing it to stop monitoring.

[0263] Optionally, the length of the first time interval associated with the N D2R transmissions includes:

[0264] The length of the first time period is associated with at least one of the following:

[0265] The number of D2R resources for the N D2R transmissions in Time Division Multiplexing (TDM);

[0266] The number of D2R resources for the N D2R transmissions in Frequency Division Multiplexing (FDM);

[0267] N;

[0268] X3, the N D2R resources transmitted are in the same time domain position, or the N D2R resources transmitted belong to X3 time domain positions, where X3 is a paging message or an indication of the R2D transmission or the R2D transmission before the R2D transmission, or X3 is a protocol agreement or pre-configuration, and X3 is an integer greater than or equal to 1.

[0269] Y3, the D2R resources of the N D2R transmissions belong to Y3 frequency domain positions, Y3 is a paging message or an indication of the R2D transmission or the R2D transmission before the R2D transmission, or Y3 is a protocol agreement or pre-configuration, and Y3 is an integer greater than or equal to 1;

[0270] M2, the D2R resources of the N D2R transmissions include one or more D2R resource groups, and each D2R resource group includes M2 D2R resources;

[0271] X4, the D2R resources of the N D2R transmissions include at least one D2R resource group, and each D2R resource group includes D2R resources at X4 time-domain locations, where X4 is an integer greater than 1;

[0272] Y4, the D2R resources of the N D2R transmissions include one or more D2R resource groups, each D2R resource group has M2 D2R resources at Y4 frequency domain positions, where Y4 is an integer greater than 1;

[0273] Where M2 is an integer greater than 1.

[0274] Optionally, the length of the first time period is a preset length or a configured length, including:

[0275] The length of the first time period is the length agreed upon in the protocol; or,

[0276] The length of the first time period is a pre-configured length; or,

[0277] The length of the first time period is the length configured by the network-side device or reader.

[0278] Optionally, if the reader does not configure the length of the first time to the device, the length of the first time is the length agreed upon in the protocol or the pre-configured length.

[0279] It should be noted that this embodiment is an implementation of the reader / writer corresponding to the embodiment shown in Figure 3. For the specific implementation, please refer to the relevant description of the embodiment shown in Figure 3. To avoid repetition, this embodiment will not be described again.

[0280] The methods provided in the embodiments of this application are illustrated below through multiple examples:

[0281] Example 1:

[0282] In this embodiment, the reader sends an R2D transmission (R2D or PRDCH carrying msg2), which carries a response (also called a reply) to N msg1 or D2R transmissions;

[0283] Among them, the first moment of the above N msg1 or D2R transmission and monitoring (also known as monitoring, listening, detection or receiving) of the R2D transmission is related;

[0284] The Reader sends the R2D transmission in the first instance;

[0285] The device monitors R2D transmission within the first time (i.e., the monitoring time of R2D transmission or response). For example, the device monitors R2D or PRDCH carrying msg2 within the monitoring time of R2D, PRDCH carrying msg2, or response (i.e., the first time).

[0286] It should be noted that in this embodiment, msg2 and msg1 can be used for R2D and D2R transmission, and the scheme for msg2 and msg1 can be extended to msg3 and msg4, that is, msg2 and msg1 can be replaced with msg3 and msg4.

[0287] This embodiment may include the following four solutions:

[0288] Option 1: Relationship

[0289] In this solution, the Reader side is as follows:

[0290] The Reader sends an R2D transmission (which can be R2D or PRDCH carrying msg2), and the R2D transmission carries a response to N msg1 or D2R transmissions;

[0291] In some implementations, the N msg1 or D2R transmissions satisfy at least one of the following:

[0292] msg1 or D2R transmissions at the same time domain location, or msg1 or D2R transmissions described as FDM, can also be referred to as FDM msg1 or D2R resources; optionally, N is indicated in the paging message or R2D transmission, and can be protocol-defined or pre-configured.

[0293] The msg1 or D2R transmission (also called D2R resource) within X1 time-domain locations, 1≤X1≤Xmax, where Xmax is the maximum value of TDMA D2R resources allowed by the protocol for one R2D indication; optionally, X1 is indicated in the paging message or R2D transmission, which can be protocol-defined or pre-configured.

[0294] The msg1 or D2R transmission (also called D2R resource) within the Y1 frequency domain positions, 1≤Y1≤Ymax, where Ymax is the maximum value of FDMA D2R resources allowed by the protocol for one R2D indication; optionally, Y1 is indicated in the paging message or R2D transmission, which can be protocol-defined or pre-configured.

[0295] No more than M1 or M2 msg1 or D2R resources or belonging to Ngroup msg1 or D2R resources, wherein the above M1 or M2 msg1 or D2R resources can be understood as D2R resource groups in the above embodiments, and each D2R resource group includes M1 or M2 D2R resources.

[0296] Optionally, the M1 or M2 Ngroup msg1 or D2R resources are M1 or M2 msg1 or D2R resources at X2 time-domain locations;

[0297] Optionally, the M1 or M2 msg1 or D2R resources are M1 or M2 msg1 or D2R resources at Y2 frequency domain locations;

[0298] Optionally, the M1 or M2 msg1 or D2R resources are M1 or M2 msg1 or D2R resources that are first traversed in the frequency domain and then in the time domain.

[0299] Optionally, the M1 or M2 msg1 or D2R resources are M1 or M2 msg1 or D2R resources that are first traversed in the time domain and then in the frequency domain.

[0300] Optionally, M1 or M2 can be replaced by Ngroup, and Ngroup can be replaced by Nmax, where Nmax is the maximum number of responses that an R2D transmission can carry.

[0301] In some implementations, the Reader sends a response to the N msg1 or D2R transmissions within a first time period, i.e., sends the aforementioned R2D transmission. The reference point, start point, or end point of the first time period (wherein, the reference point, start point, or end point of the first time period can satisfy at least one of the N msg1 or D2R transmissions in the above implementations) is related to the N msg1 or D2R transmissions. For example, the starting point is determined by a time offset from a certain msg1 or D2R transmission among the N msg1 or D2R transmissions, and the offset at least includes the minimum delay T between the R2D transmission and the corresponding D2R resource or transmission. D2Rmin ).

[0302] In some implementations, the aforementioned offset may represent the offset (also known as delay) of the D2R transmission relative to a reference time-domain resource, and a first time can be determined based on the offset.

[0303] In some implementations, the aforementioned offset can be the time delay T between the R2D transmission and the corresponding D2R resource or transmission. D2R Alternatively, it could be the maximum delay T between the R2D transmission and the corresponding D2R resource or transmission. D2R_max Or minimum delay T D2R_min .

[0304] Optionally, the reference point, start point, or end point at the first moment is related to the time domain location of the N msg1 or D2R transmissions;

[0305] Optionally, the reference point, start point, or end point at the first moment is related to the time domain location of the N msg1 or D2R transmissions; for example, the N msg1 or D2R resources are located in 4 frequency domain locations, but the time domain location of the msg1 or D2R transmissions at positions 2 and 3 determines the start point.

[0306] Optionally, the reference point, start point, or end point of the first time is related to the time domain position of the msg1 or D2R transmission located in the Y1 frequency domain positions among the N msg1 or D2R resources, or the reference point, start point, or end point of the first time is related to the combination of X1 and Y1.

[0307] Optionally, the reference point, start point, or end point of the first time is related to the time domain location of the Ngroup msg1 or D2R transmissions, or the reference point, start point, or end point of the first time is related to X2 time domain locations and Y2 frequency domain locations, or the reference point, start point, or end point of the first time is related to a combination of X2 and Y2.

[0308] In the above scheme, the Device side is as follows:

[0309] The device monitors R2D transmissions (R2D or PRDCH carrying msg2) in real time.

[0310] Among them, the R2D transmission carries a reply to N msg1 or D2R transmissions, the content of which is the same as that on the Reader side, and will not be repeated here;

[0311] The starting point, ending point, or reference point of the first time is related to the N msg1 or D2R transmissions, and the content is the same as that on the Reader side, so it will not be repeated here.

[0312] In the above scheme, the Reader sends R2D transmissions based on an association relationship, and the device monitors R2D transmissions based on the association relationship. This association relationship can include at least one of the following:

[0313] FDMed msg1 or D2R transmissions at the same time domain location correspond to an R2D transmission or response, and / or, the reference point or starting point of the monitoring time (i.e., the reference point or starting point of the first time) of FDMed msg1 or D2R transmissions at the same time domain location corresponding to an R2D transmission or response, specifically, the first time associated with D2R transmissions at the same time domain location in the above embodiments is the same or partially overlaps; optionally, N is indicated in the paging message or an R2D transmission, and can be protocol-defined or pre-configured;

[0314] A msg1 or D2R transmission within X1 time-domain locations corresponds to an R2D transmission or response, and / or, a monitoring time start point (i.e., a first time start point) for a msg1 or D2R transmission within X1 time-domain locations corresponds to an R2D transmission or response. Specifically, the first time associated with D2R transmissions within X1 time-domain locations in the above embodiments is the same or partially overlaps. Optionally, X1 is indicated in the paging message or R2D transmission, and can be protocol-defined or pre-configured.

[0315] Each msg1 or D2R transmission within Y1 frequency domain locations corresponds to an R2D transmission or response, and / or, the monitoring time start point (i.e., the first time start point) for each msg1 or D2R transmission within Y1 frequency domain locations corresponding to an R2D transmission or response is the same or partially overlapping first time associated with the D2R transmissions within Y1 frequency domain locations in the above embodiments; optionally, Y1 is indicated in the paging message or msg2 or R2D, and may be protocol-defined or pre-configured;

[0316] The monitoring time start point (i.e., the first time start point) is the first time point when the D2R transmissions associated with the D2R resources within the same D2R resource group in the above embodiments are the same or partially overlap. Specifically, the first time point is the first time point when the D2R transmissions associated with the D2R resources within the same D2R resource group are the same or partially overlap.

[0317] Optionally, the M1 or M2 msg1 or D2R resources are M1 or M2 msg1 or D2R resources at X2 time-domain locations, and / or

[0318] Optionally, the M1 or M2 msg1 or D2R resources are M1 or M2 msg1 or D2R resources at Y2 frequency domain locations, and / or

[0319] Optionally, the M1 or M2 msg1 or D2R resources are M1 or M2 msg1 or D2R resources that are first traversed in the frequency domain and then in the time domain, and / or

[0320] Optionally, the M1 or M2 msg1 or D2R resources are M1 or M2 msg1 or D2R resources that are first traversed in the time domain and then in the frequency domain, and / or

[0321] Optionally, M1 or M2 in the above text can be replaced with Ngroup, and Ngroup can be replaced with Nmax, where Nmax is the maximum number of responses that msg2 can carry.

[0322] Option 2: Indication of the number of R2D transmissions (R2D or PRDCH carrying msg2)

[0323] In this solution, the Reader side is as follows:

[0324] The Reader sends an R2D transmission, which carries a count of the R2D transmission in response to Msg1 in the first time (e.g., a value of A).

[0325] In some implementations, the meaning of the above-mentioned counting information can be as follows:

[0326] (Excluding the current R2D transmission), the number or maximum number of subsequent R2D transmissions (value A), or the number or maximum number of subsequent R2D transmissions including the current R2D transmission (value A).

[0327] The above number or maximum number can be understood as the number or maximum number of R2D transmissions measured or decoded.

[0328] In some implementations, the count information for the R2D transmissions is carried within an R2D transmission received by the device. For example, the reader sends A R2D transmissions after the first one, where A is the number of subsequent R2D transmissions (excluding the first one) indicated by the R2D transmission count information; or,

[0329] The Reader sends A R2D transmissions, including the R2D transmission, where A is the number of R2D transmission counts indicating the number of transmissions including the R2D transmission and subsequent R2D / PRDCH carrying msg2;

[0330] Optionally, the reader sets a counter to A or A-1.

[0331] In some implementations, after sending an R2D transmission,

[0332] The reader can reset A or the counter to the value of the R2D transmission count information carried in the R2D transmission or that value -X; or set the count information or A to AX; or set the counter to counter-X; or set the count information or A or the counter to 0, -1, or <0.

[0333] Optionally, if the R2D transmission does not carry counting information, then the counting information or A is set to A-1, or the counter is set to counter-X;

[0334] Optionally, if the R2D transmission does not carry counting information, then the counting information, either A or counter, is set to 0, -1, or <0. This indicates that it is the last R2D transmission.

[0335] Optionally, when A or counter = 0 or -1 or less than 0, the reader stops sending R2D transmissions, indicating that there are no subsequent R2D transmissions or that R2D transmissions do not need to be detected.

[0336] In the above scheme, the Device side is as follows:

[0337] In the first time period, if no device detects any R2D transmission containing a response to its own transmission's Msg1, upon receiving the counting information carried by the R2D transmission, the device confirms, based on this R2D transmission counting information (with a value of A), that the behavior of monitoring R2D transmissions in the first time period includes at least one of the following:

[0338] The R2D transmission count information is carried in an R2D transmission received by the device. After the R2D transmission, the device will detect (also known as receive, decode, monitor, etc.) or at most A R2D transmissions until it detects an R2D transmission containing a response to its own transmission's Msg1, where A is the number of subsequent R2D transmissions indicated by the R2D transmission count information (excluding the R2D transmission itself); or, the device will detect or at most A R2D transmissions, including the R2D transmission itself, until it detects an R2D transmission containing a response to its own transmission's Msg1, where A is the number of R2D transmissions indicated by the R2D transmission count information, including the R2D transmission itself and subsequent R2D transmissions.

[0339] Optionally, the device can set a counter to A or AX.

[0340] In some implementations, after receiving another R2D transmission following the R2D transmission count information, the device's behavior includes:

[0341] The device may reset A or counter to the value of the R2D transmission count information carried in the R2D transmission or that value -X; or set A to AX, or set counter to counter-X; or set A or counter to 0, -1, or <0.

[0342] Alternatively, if the R2D transmission does not carry counting information, then A is set to AX, or counter is set to counter-X;

[0343] Optionally, if the R2D transmission does not carry counting information, then A or counter is set to 0, -1, or <0. This implies that it is the last R2D transmission.

[0344] Optionally, when A or counter = 0 or -1 or less than 0, the device stops listening for R2D transmissions.

[0345] Option 3: The device stops monitoring R2D transmission (R2D or PRDCH carrying msg2) in advance as soon as possible.

[0346] In some implementations, the Reader sends a signal or information that instructs the device to stop monitoring R2D transmissions; optionally, the information or signal may be the counting information in Scheme 2 above, where A or counter = 0 or -X or is less than 0;

[0347] In some implementations, if the Device does not detect an R2D transmission carrying a reply corresponding to its own sent msg1 within the monitoring time (i.e., the first time) of the corresponding R2D transmission or response, and at least one of the following conditions is met, the Device will stop monitoring the R2D transmission:

[0348] At least part of D2R transmissions from other devices (such as D2R preamble, postamble, midamble) were detected;

[0349] CW detected;

[0350] At least part of other non-msg2 R2D transmissions (such as paging messages, queries, queryX, queryRep, R2D commands, R2D preambles, and sync signals) were detected.

[0351] Option 4: Length of the first time

[0352] In some implementations, the length of the first time corresponds to one of the following or a combination of at least two of the following:

[0353] The number of resources X0 for TDM's msg1 / D2R, such as the number of time-domain locations of msg1 / D2R configured or indicated by paging messages; for example, X0=1 and X0>1 correspond to different durations;

[0354] The number of resources Y0 of msg1 / D2R in FDM, such as the number of frequency-domain positions of the paging message configuration or indication of msg1 / D2R or the number of small frequency shifts, for example, different durations correspond to Y0 = 1 and Y0 > 1, and for another example, when X0 = 1 and Y0 = 1, different durations correspond to at least one of X0 and Y0 being greater than 1, or different combinations of different X0 and Y0 correspond to different durations;

[0355] Among them, the different durations above can be that the corresponding duration values are different, or can be the duration information corresponding to different first times, but it is not limited whether the duration values of these first durations are equivalent.

[0356] At least one of N, X3, Y3, X4, Y4, M2 in the above Solution 1

[0357] For example, different durations correspond to N = 1 and N > 1;

[0358] For example, different durations correspond to X3 = 1 and X3 > 1;

[0359] For example, different durations correspond to Y3 = 1 and Y3 > 1;

[0360] For example, different durations correspond to X4 = 1 and X4 > 1;

[0361] For example, different durations correspond to Y4 = 1 and Y4 > 1;

[0362] For example, different durations correspond to M2 ≤ T and M2 > T;

[0363] For example, different durations correspond to M2 < T and M2 ≥ T.

[0364] In some embodiments, the length of the first time is pre-defined by the protocol, pre-configured, configured by the network-side device (in some topologies (such as those including a base station and intermediate nodes), the base station configuration may be considered), configured or indicated by the reader; optionally, if the reader does not configure or indicate the length of the first time, or if the length of the first time is not configured or indicated in paging / msg2 / other R2D transmissions, then the device determines the length of the first time to be the first time length pre-defined or pre-configured by the protocol.

[0365] Embodiment 2:

[0366] This embodiment mainly describes the association relationship.

[0367] A msg1 or D2R transmission (or D2R resource) located in the same time domain, or a msg1 / D2R resource described as FDM, corresponds to a msg2 or response.

[0368] As shown in Figure 9, there are four msg1 resources. msg1#1 / 2 and msg1#3 / 4, located at different time domain positions 1, correspond to different msg2 / responses, and their corresponding msg2 monitoring times (as mentioned in the first time) are different. The advantage is that the device can deduce the corresponding msg2 monitoring time based on the msg1 time domain position, which helps avoid unnecessary monitoring. However, in another embodiment, their corresponding msg2 monitoring starting points can also be the same.

[0369] As shown in Figure 10, msg1#1 / 2 / 3 / 4 located at time domain position X1=2 correspond to the same msg2 / response, but msg1#5 / 6 located at the third time domain position correspond to another msg2 / response. They correspond to different msg2 monitoring times (as mentioned in the first time mentioned above). The advantage is that it avoids unnecessary delays caused by including responses to msg1 that are too far apart in a single msg2 / response.

[0370] As shown in Figure 4, there are four msg1 resources, M1 or M2 = 2. Assuming the frequency domain is traversed first, then the time domain, msg1#1 / 2 in the FDM corresponds to the same msg2 / response, and msg1#3 / 4 in the FDM corresponds to another msg2 / response. Their corresponding msg2 monitoring times are different. The advantage is the same as in the first implementation example. In another implementation, the time domain can be traversed first, then the frequency domain. msg1#1 / 3 in the FDM corresponds to the same msg2 / response, and msg1#2 / 4 in the FDM corresponds to another msg2 / response. Furthermore, their corresponding msg2 monitoring times are different.

[0371] As shown in Figure 5, there are 4 msg1 resources, M1 or M2 = 2, and msg1#1 / 3 at different time-domain locations correspond to the same msg2 / response. The benefits are the same as in the first implementation sub-example.

[0372] As shown in Figure 6, there are four msg1 resources, M1 or M2 = 2. Assuming priority traversal of the frequency domain, msg1#1 / 2 in FDM corresponds to the same msg2 / response, and msg1#3 / 4 in FDM corresponds to another msg2 / response. They correspond to the same msg2 monitoring time. The advantage is to avoid msg2 carrying too many replies, which would affect performance.

[0373] As shown in Figure 7, there are four msg1 resources, M1 or M2 = 2. Assuming that the frequency domain is traversed first and then the time domain, msg1#1 / 2 of FDM corresponds to the same msg2 / response, msg1#3 / 4 of FDM corresponds to another msg2 / response, and msg1#5 / 6 of FDM corresponds to a third msg2 / response. They correspond to the same msg2 monitoring time (as mentioned above in the first time). The advantage is to avoid msg2 carrying too many replies, which would affect performance.

[0374] Example 3:

[0375] This embodiment mainly describes the content transmitted by Msg2 and the behavior of the device.

[0376] Msg2 can indicate how many more Msg2s will be transmitted, such as a Downlink Assignment Index (DAI) counter or an R2D assignment index (RAI).

[0377] During the Msg2 monitoring window (as mentioned above at the first moment), the reader plans to send four Msg2 messages: Msg2#1, #2, #3, and #4.

[0378] If counter = 3 in Msg2#1, there are 3 more Msg2s after it; or if counter = 4 in Msg2#1, it means there are a total of 4 Msg2s including Msg2#1.

[0379] If counter = 2 in Msg2#2, there are two more Msg2s after it; or if counter = 3 in Msg2#2, it means there are a total of 3 Msg2s including Msg2#2.

[0380] If Msg2#3 has counter=1, there is another Msg2 after it, or if Msg2#3 has counter=2, it means there are a total of 2 Msg2#3.

[0381] If counter = 0 in Msg2#4, there will be 0 more Msg2s after it; or if counter = 1 in Msg2#4, it means there will be a total of 1 more Msg2s including Msg2#4.

[0382] Correspondingly, the device can know how many more msg2 messages need to be listened to through the counter information, thus avoiding unnecessary monitoring;

[0383] The advantage of this embodiment is that it avoids the device constantly listening to R2D transmissions (R2D or PRDCH carrying msg2).

[0384] It should be noted that in the above embodiments, msg2 can be replaced with msg4, and msg1 can be replaced with msg3.

[0385] In this embodiment, the device can stop monitoring R2D transmission early to avoid unnecessary monitoring and save device power consumption.

[0386] The information transmission method provided in this application can be executed by an information transmission device. This application uses an information transmission device to perform information transmission as an example to illustrate the information transmission device provided in this application.

[0387] This application provides an information transmission device. As an example, the transmission device may be a communication device or a component within a communication device, such as a chip. The communication device may be a terminal, a network-side device, or a server, etc. Exemplarily, the terminal may include, but is not limited to, the type of terminal 11 listed above, and the network-side device may include, but is not limited to, the type of network-side device 12 listed above. This application does not impose specific limitations.

[0388] The information transmission device includes a receiving module, a transmitting module, and a processing module. These modules can be implemented in software or hardware. When implemented in hardware, the processing module can be implemented by a processor. For example, the processor can include general-purpose processors, special-purpose processors, etc., such as central processing units (CPUs), microprocessors, digital signal processors (DSPs), artificial intelligence (AI) processors, graphics processing units (GPUs), application-specific integrated circuits (ASICs), network processors (NPs), field-programmable gate arrays (FPGAs), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc. The receiving and transmitting modules can be implemented by a communication interface, which can include one or more of the following: transceivers, pins, circuits, buses, radio frequency units, etc.

[0389] Specifically, referring to Figure 11, when the information transmission device is a device or a component of a device, the information transmission device 1100 includes:

[0390] The receiving module 1101 is used to monitor the reader-to-device R2D transmission in the first time, wherein the R2D transmission carries a response to N device-to-reader D2R transmissions, where N is a positive integer;

[0391] Wherein, the position of the first time is associated with the N D2R transmissions or the length of the first time is associated with the N D2R transmissions;

[0392] And / or, the R2D transmission also carries R2D transmission counting information.

[0393] Optionally, the N D2R transmissions satisfy at least one of the following:

[0394] The N D2R transmissions of D2R resources belong to the same time domain location, or the N D2R transmissions of D2R resources belong to X1 time domain locations, where X1 is a paging message or an indication of the R2D transmission or an R2D transmission prior to the R2D transmission, or X1 is a protocol agreement or pre-configuration, and X1 is an integer greater than 1.

[0395] The N D2R transmissions of D2R resources belong to the same frequency domain location, or the N D2R transmissions of D2R resources belong to Y1 frequency domain locations, where Y1 is a paging message or an indication of the R2D transmission or the R2D transmission prior to the R2D transmission, or Y1 is a protocol agreement or pre-configuration, and Y1 is an integer greater than 1.

[0396] N≤M1, where M1 represents the number or maximum number of D2R resources included in a D2R resource group;

[0397] The D2R resources of the N D2R transmissions include a D2R resource group, and a D2R resource group includes M1 D2R resources.

[0398] The D2R resources of the N D2R transmissions include multiple D2R resource groups, and each D2R resource group includes M1 D2R resources.

[0399] Optionally, the D2R resource group includes M1 D2R resources at X2 time-domain locations, where X2 is an integer greater than or equal to 1; or, the D2R resource group includes M1 D2R resources at Y2 frequency-domain locations, where Y2 is an integer greater than or equal to 1; and / or,

[0400] The one or more D2R resource groups are those that are traversed first in the frequency domain and then in the time domain; or, the one or more D2R resource groups are those that are traversed first in the time domain and then in the frequency domain; and / or,

[0401] A D2R resource group consists of M1 D2R resources that are first traversed in the frequency domain and then in the time domain, or a D2R resource group consists of M1 D2R resources that are first traversed in the time domain and then in the frequency domain.

[0402] Optionally, at least one of N, X1, Y1, M1, X2, and Y2 is a paging message, or the R2D transmission, or an R2D transmission indication prior to the R2D transmission; or,

[0403] At least one of N, X1, Y1, M1, X2, and Y2 is a protocol agreement or pre-configuration.

[0404] Optionally, D2R transmissions at the same time domain location correspond to the same response, or the first time associated with D2R transmissions at the same time domain location is the same or partially overlaps; or,

[0405] D2R transmissions at the X1 time-domain locations correspond to the same response, or the first time associated with the D2R transmissions at the X1 time-domain locations is the same or partially overlaps; (it should be mentioned in the specification that it may only be that the corresponding starting points are the same, such as the lengths may be different) or,

[0406] D2R transmissions at the Y1 frequency domain positions correspond to the same response, or the first time associated with D2R transmissions at the Y1 frequency domain positions is the same or partially overlaps; or...

[0407] The responses of D2R transmissions within a D2R resource group are the same, or the first time of association of D2R transmissions corresponding to D2R resources within the same D2R resource group is the same or partially overlaps.

[0408] Optionally, associating the location of the first time with the N D2R transmissions includes:

[0409] The start point, end point, or reference point of the first time is associated with the N D2R transmissions.

[0410] Optionally, the association of the starting point or reference point of the first time location with the N D2R transmissions includes one of the following:

[0411] The start point, end point, or reference point of the first time is associated with the time domain location of the N D2R transmissions, wherein the D2R resources of the N D2R transmissions are located at the same time domain location;

[0412] The start point, end point, or reference point of the first time is associated with the first time domain position among the N D2R resources transmitted by D2R, wherein the N D2R resources transmitted by D2R belong to X1 time domain positions, and X1 is an integer greater than 1.

[0413] The start point, end point, or reference point of the first time is associated with the time domain position of the D2R transmission located at the first frequency domain position among the N D2R transmissions, wherein the N D2R transmissions are located at Y1 frequency domain positions, where Y1 is an integer greater than 1.

[0414] The start point, end point, or reference point of the first time is associated with the temporal location of one or more D2R resource groups, wherein the D2R resources transmitted by the N D2Rs include one or more D2R resource groups, and each D2R resource group includes M1 D2R resources, where M1 is an integer greater than 1.

[0415] Optionally, the counting information is used to indicate the number or maximum number of subsequent R2D transmissions sent by the reader, or the counting information is used to indicate the value obtained by adding K to the number or maximum number of subsequent R2D transmissions sent by the reader, where K is a positive integer.

[0416] Optionally, the reader sends an R2D transmission carrying the counting information; or,

[0417] Each of the multiple R2D transmissions sent by the reader carries the counting information.

[0418] Optionally, the receiving module 1101 is also used to monitor R2D transmission based on the counting information.

[0419] Optionally, the receiving module 1101 is further configured to update the count of R2D transmissions based on the monitored R2D transmissions, wherein monitoring of R2D transmissions is stopped when the count of R2D transmissions is a first preset value.

[0420] Optionally, the receiving module 1101 is further configured to stop monitoring the R2D transmission when the R2D transmission carries the counting information and the counting information indicates a second preset value.

[0421] Optionally, the receiving module 1101 is also used to stop monitoring the R2D transmission when preset conditions are met.

[0422] Optionally, the preset conditions include at least one of the following:

[0423] The first device receives a signal or information from the reader indicating to stop monitoring;

[0424] The first device did not detect the R2D transmission corresponding to the first device;

[0425] Carrier CW detected;

[0426] R2D transmissions without a response to D2R transmissions were detected;

[0427] D2R transmissions were detected for other devices.

[0428] Optionally, the information indicating to stop monitoring includes the counting information.

[0429] Optionally, the length of the first time interval associated with the N D2R transmissions includes:

[0430] The length of the first time period is associated with at least one of the following:

[0431] The number of D2R resources for the N D2R transmissions in Time Division Multiplexing (TDM);

[0432] The number of D2R resources for the N D2R transmissions in Frequency Division Multiplexing (FDM);

[0433] N;

[0434] X3, the N D2R resources transmitted are in the same time domain position, or the N D2R resources transmitted belong to X3 time domain positions, where X3 is a paging message or an indication of the R2D transmission or the R2D transmission before the R2D transmission, or X3 is a protocol agreement or pre-configuration, and X3 is an integer greater than or equal to 1.

[0435] Y3, the D2R resources of the N D2R transmissions belong to Y3 frequency domain positions, Y3 is a paging message or an indication of the R2D transmission or the R2D transmission before the R2D transmission, or Y3 is a protocol agreement or pre-configuration, and Y3 is an integer greater than or equal to 1;

[0436] M2, the D2R resources of the N D2R transmissions include one or more D2R resource groups, and each D2R resource group includes M2 D2R resources;

[0437] X4, the D2R resources of the N D2R transmissions include at least one D2R resource group, and each D2R resource group includes D2R resources at X4 time-domain locations, where X4 is an integer greater than 1;

[0438] Y4, the D2R resources of the N D2R transmissions include one or more D2R resource groups, and a D2R resource group has M2 D2R resources at Y4 frequency domain positions, where Y4 is an integer greater than 1;

[0439] Where M2 is an integer greater than 1.

[0440] Optionally, the length of the first time period is a preset length or a configured length, including:

[0441] The length of the first time period is the length agreed upon in the protocol; or,

[0442] The length of the first time period is a pre-configured length; or,

[0443] The length of the first time period is the length configured by the network-side device or reader.

[0444] Optionally, if the first device does not obtain the length of the first time configured by the reader / writer, the length of the first time is the length agreed upon in the protocol or the pre-configured length.

[0445] The aforementioned information transmission device can save on equipment power consumption.

[0446] The information transmission device provided in this application embodiment can implement the various processes implemented in the method embodiment shown in FIG3 and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0447] Specifically, referring to Figure 12, when the information transmission device is a reader or a component within a reader, the information transmission device 1200 includes:

[0448] Receiver module 1201 is used to receive D2R transmissions;

[0449] The sending module 1202 is used to send reader-to-device R2D transmissions in the first time, wherein the R2D transmissions carry responses to N device-to-reader D2R transmissions, where N is a positive integer;

[0450] Wherein, the position of the first time is associated with the N D2R transmissions or the length of the first time is associated with the N D2R transmissions;

[0451] And / or, the R2D transmission also carries R2D transmission counting information.

[0452] Optionally, the N D2R transmissions satisfy at least one of the following:

[0453] The N D2R transmissions of D2R resources belong to the same time domain location, or the N D2R transmissions of D2R resources belong to X1 time domain locations, where X1 is a paging message or an indication of the R2D transmission or an R2D transmission prior to the R2D transmission, or X1 is a protocol agreement or pre-configuration, and X1 is an integer greater than 1.

[0454] The N D2R transmissions of D2R resources belong to the same frequency domain location, or the N D2R transmissions of D2R resources belong to Y1 frequency domain locations, where Y1 is a paging message or an indication of the R2D transmission or the R2D transmission prior to the R2D transmission, or Y1 is a protocol agreement or pre-configuration, and Y1 is an integer greater than 1.

[0455] N≤M1, where M1 represents the number or maximum number of D2R resources included in a D2R resource group;

[0456] The D2R resources of the N D2R transmissions comprise a D2R resource group, and each D2R resource group comprises M1 D2R resources.

[0457] The D2R resources of the N D2R transmissions include multiple D2R resource groups, and each D2R resource group includes M1 D2R resources.

[0458] Optionally, the D2R resource group includes M1 D2R resources at X2 time-domain locations, where X2 is an integer greater than 1; or, the D2R resource group includes M1 D2R resources at Y2 frequency-domain locations, where Y2 is an integer greater than 1; and / or,

[0459] The one or more D2R resource groups are those that are traversed in the frequency domain first and then in the time domain, or the one or more D2R resource groups are those that are traversed in the time domain first and then in the frequency domain.

[0460] Optionally, at least one of N, X1, Y1, M1, X2, and Y2 is a paging message, or the R2D transmission, or an R2D transmission indication prior to the R2D transmission; or,

[0461] At least one of N, X1, Y1, M1, X2, and Y2 is a protocol agreement or pre-configuration.

[0462] Optionally, D2R transmissions at the same time domain location correspond to the same response, or the first time associated with D2R transmissions at the same time domain location is the same; or,

[0463] D2R transmissions at the X1 time-domain locations correspond to the same response, or the first time associated with the D2R transmissions at the X1 time-domain locations is the same; or...

[0464] D2R transmissions at the Y1 frequency domain positions correspond to the same response, or the first time associated with the D2R transmissions at the Y1 frequency domain positions is the same; or...

[0465] The responses of D2R transmissions corresponding to D2R resources within the same D2R resource group are the same, or the first time associated with D2R transmissions corresponding to D2R resources within the same D2R resource group is the same.

[0466] Optionally, associating the location of the first time with the N D2R transmissions includes:

[0467] The start point, end point, or reference point of the first time is associated with the N D2R transmissions.

[0468] Optionally, the association of the start point or reference point of the first time with the N D2R transmissions includes one of the following:

[0469] The start point, end point, or reference point of the first time is associated with the time domain location of the N D2R transmissions, wherein the D2R resources of the N D2R transmissions are located at the same time domain location;

[0470] The start point, end point, or reference point of the first time is associated with the first time domain position among the N D2R resources transmitted by D2R, wherein the N D2R resources transmitted by D2R belong to X1 time domain positions, and X1 is an integer greater than 1.

[0471] The start point, end point, or reference point of the first time is associated with the time domain position of the D2R transmission located at the first frequency domain position among the N D2R transmissions, wherein the N D2R transmissions are located at Y1 frequency domain positions, where Y1 is an integer greater than 1.

[0472] The starting point, ending point, or reference point of the first time location is associated with the temporal location of one or more D2R resource groups, wherein the D2R resources of the N D2R transmissions include one or more D2R resource groups, and each D2R resource group includes M1 D2R resources, where M1 is an integer greater than 1.

[0473] Optionally, the counting information is used to indicate the number or maximum number of subsequent R2D transmissions sent by the reader, or the counting information is used to indicate the value obtained by adding K to the number or maximum number of subsequent R2D transmissions sent by the reader, where K is a positive integer.

[0474] Optionally, the reader sends an R2D transmission carrying the counting information; or,

[0475] Each of the multiple R2D transmissions sent by the reader carries the counting information.

[0476] Optionally, the sending module 1202 is further configured to perform at least one of the following:

[0477] The count of R2D transmissions is updated based on the transmitted R2D transmissions;

[0478] Send a signal or message to the device instructing it to stop monitoring.

[0479] Optionally, the length of the first time interval associated with the N D2R transmissions includes:

[0480] The length of the first time period is associated with at least one of the following:

[0481] The number of D2R resources for the N D2R transmissions in Time Division Multiplexing (TDM);

[0482] The number of D2R resources for the N D2R transmissions in Frequency Division Multiplexing (FDM);

[0483] N;

[0484] X3, the N D2R resources transmitted are in the same time domain position, or the N D2R resources transmitted belong to X3 time domain positions, where X3 is a paging message or an indication of the R2D transmission or the R2D transmission before the R2D transmission, or X3 is a protocol agreement or pre-configuration, and X3 is an integer greater than or equal to 1.

[0485] Y3, the D2R resources of the N D2R transmissions belong to Y3 frequency domain positions, Y3 is a paging message or an indication of the R2D transmission or the R2D transmission before the R2D transmission, or Y3 is a protocol agreement or pre-configuration, and Y3 is an integer greater than or equal to 1;

[0486] M2, the D2R resources of the N D2R transmissions include one or more D2R resource groups, and each D2R resource group includes M2 D2R resources;

[0487] X4, the D2R resources of the N D2R transmissions include at least one D2R resource group, and each D2R resource group includes D2R resources at X4 time-domain locations, where X4 is an integer greater than 1;

[0488] Y4, the D2R resources of the N D2R transmissions include one or more D2R resource groups, each D2R resource group has M2 D2R resources at Y4 frequency domain positions, where Y4 is an integer greater than 1;

[0489] Where M2 is an integer greater than 1.

[0490] Optionally, the length of the first time period is a preset length or a configured length, including:

[0491] The length of the first time period is the length agreed upon in the protocol; or,

[0492] The length of the first time period is a pre-configured length; or,

[0493] The length of the first time period is the length configured by the network-side device or reader.

[0494] Optionally, if the reader does not configure the length of the first time to the device, the length of the first time is the length agreed upon in the protocol or the pre-configured length.

[0495] The aforementioned information transmission device can save power consumption of the equipment.

[0496] The information transmission device provided in this application embodiment can implement the various processes implemented in the method embodiment shown in FIG8 and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0497] As shown in Figure 13, this application embodiment also provides a communication device 1300, including a processor 1301 and a memory 1302. The memory 1302 stores a program or instructions that can run on the processor 1301. For example, when the communication device 1300 is a terminal, the program or instructions executed by the processor 1301 implement the various steps of the above-described transmission method embodiment and achieve the same technical effect. When the communication device 1300 is a network-side device, the program or instructions executed by the processor 1301 implement the various steps of the above-described transmission method embodiment and achieve the same technical effect. To avoid repetition, this will not be described again here.

[0498] This application also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps in the method embodiments shown in FIG3 or FIG8. This terminal embodiment corresponds to the above-described terminal-side method embodiments, and all implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and can achieve the same technical effect. The terminal can be the transmission monitoring device shown in FIG11 or the transmission device shown in FIG12. Specifically, FIG14 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of this application.

[0499] The terminal 1400 includes, but is not limited to, at least some of the following components: radio frequency unit 1401, network module 1402, audio output unit 1403, input unit 1404, sensor 1405, display unit 1406, user input unit 1407, interface unit 1408, memory 1409, and processor 1410.

[0500] Those skilled in the art will understand that the terminal 1400 may also include a power supply (such as a battery) for powering various components. The power supply can be logically connected to the processor 1410 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The terminal structure shown in Figure 14 does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0501] It should be understood that, in this embodiment, the input unit 1404 may include a graphics processor 14041 and a microphone 14042. The graphics processor 14041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 1406 may include a display panel 14061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 1407 includes at least one of a touch panel 14071 and other input devices 14072. The touch panel 14071 is also called a touch screen. The touch panel 14071 may include a touch detection device and a touch controller. Other input devices 14072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0502] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 1401 can transmit it to the processor 1410 for processing; in addition, the radio frequency unit 1401 can send uplink data to the network-side device. Typically, the radio frequency unit 1401 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0503] The memory 1409 can be used to store software programs or instructions, as well as various data. The memory 1409 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 1409 may include volatile memory or non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 1409 in this embodiment includes, but is not limited to, these and any other suitable types of memory.

[0504] Processor 1410 may include one or more processing units; optionally, processor 1410 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 1410.

[0505] In the embodiment where the device is a terminal,

[0506] The radio frequency unit 1401 is used to monitor the reader-to-device R2D transmission in the first time, wherein the R2D transmission carries a response to N device-to-reader D2R transmissions, where N is a positive integer.

[0507] Wherein, the position of the first time is associated with the N D2R transmissions or the length of the first time is associated with the N D2R transmissions;

[0508] And / or, the R2D transmission also carries R2D transmission counting information.

[0509] Optionally, the N D2R transmissions satisfy at least one of the following:

[0510] The N D2R transmissions of D2R resources belong to the same time domain location, or the N D2R transmissions of D2R resources belong to X1 time domain locations, where X1 is a paging message or an indication of the R2D transmission or an R2D transmission prior to the R2D transmission, or X1 is a protocol agreement or pre-configuration, and X1 is an integer greater than 1.

[0511] The N D2R transmissions of D2R resources belong to the same frequency domain location, or the N D2R transmissions of D2R resources belong to Y1 frequency domain locations, where Y1 is a paging message or an indication of the R2D transmission or the R2D transmission prior to the R2D transmission, or Y1 is a protocol agreement or pre-configuration, and Y1 is an integer greater than 1.

[0512] N≤M1, where M1 represents the number or maximum number of D2R resources included in a D2R resource group;

[0513] The D2R resources of the N D2R transmissions include a D2R resource group, and a D2R resource group includes M1 D2R resources.

[0514] The D2R resources of the N D2R transmissions include multiple D2R resource groups, and each D2R resource group includes M1 D2R resources.

[0515] Optionally, the D2R resource group includes M1 D2R resources at X2 time-domain locations, where X2 is an integer greater than or equal to 1; or, the D2R resource group includes M1 D2R resources at Y2 frequency-domain locations, where Y2 is an integer greater than or equal to 1; and / or,

[0516] The one or more D2R resource groups are those that are traversed first in the frequency domain and then in the time domain; or, the one or more D2R resource groups are those that are traversed first in the time domain and then in the frequency domain; and / or,

[0517] A D2R resource group consists of M1 D2R resources that are first traversed in the frequency domain and then in the time domain, or a D2R resource group consists of M1 D2R resources that are first traversed in the time domain and then in the frequency domain.

[0518] Optionally, at least one of N, X1, Y1, M1, X2, and Y2 is a paging message, or the R2D transmission, or an R2D transmission indication prior to the R2D transmission; or,

[0519] At least one of N, X1, Y1, M1, X2, and Y2 is a protocol agreement or pre-configuration.

[0520] Optionally, D2R transmissions at the same time domain location correspond to the same response, or the first time associated with D2R transmissions at the same time domain location is the same or partially overlaps; or,

[0521] D2R transmissions at the X1 time-domain locations correspond to the same response, or the first time associated with the D2R transmissions at the X1 time-domain locations is the same or partially overlaps; (it should be mentioned in the specification that it may only be that the corresponding starting points are the same, such as the lengths may be different) or,

[0522] D2R transmissions at the Y1 frequency domain positions correspond to the same response, or the first time associated with D2R transmissions at the Y1 frequency domain positions is the same or partially overlaps; or...

[0523] The responses of D2R transmissions within a D2R resource group are the same, or the first time of association of D2R transmissions corresponding to D2R resources within the same D2R resource group is the same or partially overlaps.

[0524] Optionally, associating the location of the first time with the N D2R transmissions includes:

[0525] The start point, end point, or reference point of the first time is associated with the N D2R transmissions.

[0526] Optionally, the association of the starting point or reference point of the first time location with the N D2R transmissions includes one of the following:

[0527] The start point, end point, or reference point of the first time is associated with the time domain location of the N D2R transmissions, wherein the D2R resources of the N D2R transmissions are located at the same time domain location;

[0528] The start point, end point, or reference point of the first time is associated with the first time domain position among the N D2R resources transmitted by D2R, wherein the N D2R resources transmitted by D2R belong to X1 time domain positions, and X1 is an integer greater than 1.

[0529] The start point, end point, or reference point of the first time is associated with the time domain position of the D2R transmission located at the first frequency domain position among the N D2R transmissions, wherein the N D2R transmissions are located at Y1 frequency domain positions, where Y1 is an integer greater than 1.

[0530] The start point, end point, or reference point of the first time is associated with the temporal location of one or more D2R resource groups, wherein the D2R resources transmitted by the N D2Rs include one or more D2R resource groups, and each D2R resource group includes M1 D2R resources, where M1 is an integer greater than 1.

[0531] Optionally, the counting information is used to indicate the number or maximum number of subsequent R2D transmissions sent by the reader, or the counting information is used to indicate the value obtained by adding K to the number or maximum number of subsequent R2D transmissions sent by the reader, where K is a positive integer.

[0532] Optionally, the reader sends an R2D transmission carrying the counting information; or,

[0533] Each of the multiple R2D transmissions sent by the reader carries the counting information.

[0534] Optionally, the radio frequency unit 1401 is also used to monitor R2D transmission based on the counting information.

[0535] Optionally, the radio frequency unit 1401 is further configured to update the count of R2D transmissions based on the monitored R2D transmissions, wherein monitoring of R2D transmissions is stopped when the count of R2D transmissions is a first preset value.

[0536] Optionally, the radio frequency unit 1401 is further configured to stop monitoring the R2D transmission when the R2D transmission carries the counting information and the counting information indicates a second preset value.

[0537] Optionally, the radio frequency unit 1401 is also used to stop monitoring the R2D transmission when a preset condition is met.

[0538] Optionally, the preset conditions include at least one of the following:

[0539] The first device receives a signal or information from the reader indicating to stop monitoring;

[0540] The first device did not detect the R2D transmission corresponding to the first device;

[0541] Carrier CW detected;

[0542] R2D transmissions without a response to D2R transmissions were detected;

[0543] D2R transmissions were detected for other devices.

[0544] Optionally, the information indicating to stop monitoring includes the counting information.

[0545] Optionally, the length of the first time interval associated with the N D2R transmissions includes:

[0546] The length of the first time period is associated with at least one of the following:

[0547] The number of D2R resources for the N D2R transmissions in Time Division Multiplexing (TDM);

[0548] The number of D2R resources for the N D2R transmissions in Frequency Division Multiplexing (FDM);

[0549] N;

[0550] X3, the N D2R resources transmitted are in the same time domain position, or the N D2R resources transmitted belong to X3 time domain positions, where X3 is a paging message or an indication of the R2D transmission or the R2D transmission before the R2D transmission, or X3 is a protocol agreement or pre-configuration, and X3 is an integer greater than or equal to 1.

[0551] Y3, the D2R resources of the N D2R transmissions belong to Y3 frequency domain positions, Y3 is a paging message or an indication of the R2D transmission or the R2D transmission before the R2D transmission, or Y3 is a protocol agreement or pre-configuration, and Y3 is an integer greater than or equal to 1;

[0552] M2, the D2R resources of the N D2R transmissions include one or more D2R resource groups, and each D2R resource group includes M2 D2R resources;

[0553] X4, the D2R resources of the N D2R transmissions include at least one D2R resource group, and each D2R resource group includes D2R resources at X4 time-domain locations, where X4 is an integer greater than 1;

[0554] Y4, the D2R resources of the N D2R transmissions include one or more D2R resource groups, and a D2R resource group has M2 D2R resources at Y4 frequency domain positions, where Y4 is an integer greater than 1;

[0555] Where M2 is an integer greater than 1.

[0556] Optionally, the length of the first time period is a preset length or a configured length, including:

[0557] The length of the first time period is the length agreed upon in the protocol; or,

[0558] The length of the first time period is a pre-configured length; or,

[0559] The length of the first time period is the length configured by the network-side device or reader.

[0560] Optionally, if the first device does not obtain the length of the first time configured by the reader / writer, the length of the first time is the length agreed upon in the protocol or the pre-configured length.

[0561] In the above embodiment where the terminal is a reader / writer:

[0562] Radio frequency unit 1401 is used to receive D2R transmissions; and to send reader-to-device R2D transmissions in the first time period, wherein the R2D transmissions carry responses to N device-to-reader D2R transmissions, where N is a positive integer;

[0563] Wherein, the position of the first time is associated with the N D2R transmissions or the length of the first time is associated with the N D2R transmissions;

[0564] And / or, the R2D transmission also carries R2D transmission counting information.

[0565] Optionally, the N D2R transmissions satisfy at least one of the following:

[0566] The N D2R transmissions of D2R resources belong to the same time domain location, or the N D2R transmissions of D2R resources belong to X1 time domain locations, where X1 is a paging message or an indication of the R2D transmission or an R2D transmission prior to the R2D transmission, or X1 is a protocol agreement or pre-configuration, and X1 is an integer greater than 1.

[0567] The N D2R transmissions of D2R resources belong to the same frequency domain location, or the N D2R transmissions of D2R resources belong to Y1 frequency domain locations, where Y1 is a paging message or an indication of the R2D transmission or the R2D transmission prior to the R2D transmission, or Y1 is a protocol agreement or pre-configuration, and Y1 is an integer greater than 1.

[0568] N≤M1, where M1 represents the number or maximum number of D2R resources included in a D2R resource group;

[0569] The D2R resources of the N D2R transmissions comprise a D2R resource group, and each D2R resource group comprises M1 D2R resources.

[0570] The D2R resources of the N D2R transmissions include multiple D2R resource groups, and each D2R resource group includes M1 D2R resources.

[0571] Optionally, the D2R resource group includes M1 D2R resources at X2 time-domain locations, where X2 is an integer greater than 1; or, the D2R resource group includes M1 D2R resources at Y2 frequency-domain locations, where Y2 is an integer greater than 1; and / or,

[0572] The one or more D2R resource groups are those that are traversed in the frequency domain first and then in the time domain, or the one or more D2R resource groups are those that are traversed in the time domain first and then in the frequency domain.

[0573] Optionally, at least one of N, X1, Y1, M1, X2, and Y2 is a paging message, or the R2D transmission, or an R2D transmission indication prior to the R2D transmission; or,

[0574] At least one of N, X1, Y1, M1, X2, and Y2 is a protocol agreement or pre-configuration.

[0575] Optionally, D2R transmissions at the same time domain location correspond to the same response, or the first time associated with D2R transmissions at the same time domain location is the same; or,

[0576] D2R transmissions at the X1 time-domain locations correspond to the same response, or the first time associated with the D2R transmissions at the X1 time-domain locations is the same; or...

[0577] D2R transmissions at the Y1 frequency domain positions correspond to the same response, or the first time associated with the D2R transmissions at the Y1 frequency domain positions is the same; or...

[0578] The responses of D2R transmissions corresponding to D2R resources within the same D2R resource group are the same, or the first time associated with D2R transmissions corresponding to D2R resources within the same D2R resource group is the same.

[0579] Optionally, associating the location of the first time with the N D2R transmissions includes:

[0580] The start point, end point, or reference point of the first time is associated with the N D2R transmissions.

[0581] Optionally, the association of the start point or reference point of the first time with the N D2R transmissions includes one of the following:

[0582] The start point, end point, or reference point of the first time is associated with the time domain location of the N D2R transmissions, wherein the D2R resources of the N D2R transmissions are located at the same time domain location;

[0583] The start point, end point, or reference point of the first time is associated with the first time domain position among the N D2R resources transmitted by D2R, wherein the N D2R resources transmitted by D2R belong to X1 time domain positions, and X1 is an integer greater than 1.

[0584] The start point, end point, or reference point of the first time is associated with the time domain position of the D2R transmission located at the first frequency domain position among the N D2R transmissions, wherein the N D2R transmissions are located at Y1 frequency domain positions, where Y1 is an integer greater than 1.

[0585] The starting point, ending point, or reference point of the first time location is associated with the temporal location of one or more D2R resource groups, wherein the D2R resources of the N D2R transmissions include one or more D2R resource groups, and each D2R resource group includes M1 D2R resources, where M1 is an integer greater than 1.

[0586] Optionally, the counting information is used to indicate the number or maximum number of subsequent R2D transmissions sent by the reader, or the counting information is used to indicate the value obtained by adding K to the number or maximum number of subsequent R2D transmissions sent by the reader, where K is a positive integer.

[0587] Optionally, the reader sends an R2D transmission carrying the counting information; or,

[0588] Each of the multiple R2D transmissions sent by the reader carries the counting information.

[0589] Optionally, the radio frequency unit 1401 is further used for at least one of the following:

[0590] The count of R2D transmissions is updated based on the transmitted R2D transmissions;

[0591] Send a signal or message to the device instructing it to stop monitoring.

[0592] Optionally, the length of the first time interval associated with the N D2R transmissions includes:

[0593] The length of the first time period is associated with at least one of the following:

[0594] The number of D2R resources for the N D2R transmissions in Time Division Multiplexing (TDM);

[0595] The number of D2R resources for the N D2R transmissions in Frequency Division Multiplexing (FDM);

[0596] N;

[0597] X3, the N D2R resources transmitted are in the same time domain position, or the N D2R resources transmitted belong to X3 time domain positions, where X3 is a paging message or an indication of the R2D transmission or the R2D transmission before the R2D transmission, or X3 is a protocol agreement or pre-configuration, and X3 is an integer greater than or equal to 1.

[0598] Y3, the D2R resources of the N D2R transmissions belong to Y3 frequency domain positions, Y3 is a paging message or an indication of the R2D transmission or the R2D transmission before the R2D transmission, or Y3 is a protocol agreement or pre-configuration, and Y3 is an integer greater than or equal to 1;

[0599] M2, the D2R resources of the N D2R transmissions include one or more D2R resource groups, and each D2R resource group includes M2 D2R resources;

[0600] X4, the D2R resources of the N D2R transmissions include at least one D2R resource group, and each D2R resource group includes D2R resources at X4 time-domain locations, where X4 is an integer greater than 1;

[0601] Y4, the D2R resources of the N D2R transmissions include one or more D2R resource groups, each D2R resource group has M2 D2R resources at Y4 frequency domain positions, where Y4 is an integer greater than 1;

[0602] Where M2 is an integer greater than 1.

[0603] Optionally, the length of the first time period is a preset length or a configured length, including:

[0604] The length of the first time period is the length agreed upon in the protocol; or,

[0605] The length of the first time period is a pre-configured length; or,

[0606] The length of the first time period is the length configured by the network-side device or reader.

[0607] Optionally, if the reader does not configure the length of the first time to the device, the length of the first time is the length agreed upon in the protocol or the pre-configured length.

[0608] The aforementioned terminals can save on device power consumption.

[0609] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method embodiment and achieve the same or corresponding technical effect. To avoid repetition, it will not be described again here.

[0610] This application also provides a network-side device, including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method embodiment shown in FIG8. This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this network-side device embodiment and can achieve the same technical effect.

[0611] Specifically, this application embodiment also provides a network-side device, which can be the transmission device shown in FIG15. As shown in FIG15, the network-side device 1500 includes: an antenna 1501, a radio frequency device 1502, a baseband device 1503, a processor 1504, and a memory 1505. The antenna 1501 is connected to the radio frequency device 1502. In the uplink direction, the radio frequency device 1502 receives information through the antenna 1501 and sends the received information to the baseband device 1503 for processing. In the downlink direction, the baseband device 1503 processes the information to be transmitted and sends it to the radio frequency device 1502, which processes the received information and then transmits it through the antenna 1501.

[0612] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 1503, which includes a baseband processor.

[0613] The baseband device 1503 may include at least one baseband board, on which multiple chips are disposed, as shown in FIG15. One of the chips is, for example, a baseband processor, which is connected to the memory 1505 via a bus interface to call the program or instructions in the memory 1505 to execute the network-side device operation shown in the above method embodiment.

[0614] The network-side device may also include a network interface 1506, such as a Common Public Radio Interface (CPRI).

[0615] The radio frequency device 1502 is used to receive D2R transmissions; and to send reader-to-device R2D transmissions within a first time period, wherein the R2D transmissions carry responses to N device-to-reader D2R transmissions, where N is a positive integer.

[0616] Wherein, the position of the first time is associated with the N D2R transmissions or the length of the first time is associated with the N D2R transmissions;

[0617] And / or, the R2D transmission also carries R2D transmission counting information.

[0618] Optionally, the N D2R transmissions satisfy at least one of the following:

[0619] The N D2R transmissions of D2R resources belong to the same time domain location, or the N D2R transmissions of D2R resources belong to X1 time domain locations, where Y1 is a paging message or an indication of the R2D transmission or the R2D transmission prior to the R2D transmission, or Y1 is a protocol agreement or pre-configuration, and X1 is an integer greater than 1.

[0620] The N D2R transmissions of D2R resources belong to the same frequency domain location, or the N D2R transmissions of D2R resources belong to Y1 frequency domain locations, where Y1 is a paging message or an indication of the R2D transmission or the R2D transmission prior to the R2D transmission, or Y1 is a protocol agreement or pre-configuration, and Y1 is an integer greater than 1.

[0621] N≤M1, where M1 represents the number or maximum number of D2R resources included in a D2R resource group;

[0622] The D2R resources of the N D2R transmissions comprise a D2R resource group, and each D2R resource group comprises M1 D2R resources.

[0623] The D2R resources of the N D2R transmissions include multiple D2R resource groups, and each D2R resource group includes M1 D2R resources.

[0624] Optionally, the D2R resource group includes M1 D2R resources at X2 time-domain locations, where X2 is an integer greater than 1; or, the D2R resource group includes M1 D2R resources at Y2 frequency-domain locations, where Y2 is an integer greater than 1; and / or,

[0625] The one or more D2R resource groups are those that are traversed in the frequency domain first and then in the time domain, or the one or more D2R resource groups are those that are traversed in the time domain first and then in the frequency domain.

[0626] Optionally, at least one of N, X1, Y1, M1, X2, and Y2 is a paging message, or the R2D transmission, or an R2D transmission indication prior to the R2D transmission; or,

[0627] At least one of N, X1, Y1, M1, X2, and Y2 is a protocol agreement or pre-configuration.

[0628] Optionally, D2R transmissions at the same time domain location correspond to the same response, or the first time associated with D2R transmissions at the same time domain location is the same; or,

[0629] D2R transmissions at the X1 time-domain locations correspond to the same response, or the first time associated with the D2R transmissions at the X1 time-domain locations is the same; or...

[0630] D2R transmissions at the Y1 frequency domain positions correspond to the same response, or the first time associated with the D2R transmissions at the Y1 frequency domain positions is the same; or...

[0631] The responses of D2R transmissions corresponding to D2R resources within the same D2R resource group are the same, or the first time associated with D2R transmissions corresponding to D2R resources within the same D2R resource group is the same.

[0632] Optionally, associating the location of the first time with the N D2R transmissions includes:

[0633] The start point, end point, or reference point of the first time is associated with the N D2R transmissions.

[0634] Optionally, the association of the start point or reference point of the first time with the N D2R transmissions includes one of the following:

[0635] The start point, end point, or reference point of the first time is associated with the time domain location of the N D2R transmissions, wherein the D2R resources of the N D2R transmissions are located at the same time domain location;

[0636] The start point, end point, or reference point of the first time is associated with the first time domain position among the N D2R resources transmitted by D2R, wherein the N D2R resources transmitted by D2R belong to X1 time domain positions, and X1 is an integer greater than 1.

[0637] The start point, end point, or reference point of the first time is associated with the time domain position of the D2R transmission located at the first frequency domain position among the N D2R transmissions, wherein the N D2R transmissions are located at Y1 frequency domain positions, where Y1 is an integer greater than 1.

[0638] The starting point, ending point, or reference point of the first time location is associated with the temporal location of one or more D2R resource groups, wherein the D2R resources of the N D2R transmissions include one or more D2R resource groups, and each D2R resource group includes M1 D2R resources, where M1 is an integer greater than 1.

[0639] Optionally, the counting information is used to indicate the number or maximum number of subsequent R2D transmissions sent by the reader, or the counting information is used to indicate the value obtained by adding K to the number or maximum number of subsequent R2D transmissions sent by the reader, where K is a positive integer.

[0640] Optionally, the reader sends an R2D transmission carrying the counting information; or,

[0641] Each of the multiple R2D transmissions sent by the reader carries the counting information.

[0642] Optionally, the radio frequency device 1502 is further used for at least one of the following:

[0643] The count of R2D transmissions is updated based on the transmitted R2D transmissions;

[0644] Send a signal or message to the device instructing it to stop monitoring.

[0645] Optionally, the length of the first time interval associated with the N D2R transmissions includes:

[0646] The length of the first time period is associated with at least one of the following:

[0647] The number of D2R resources for the N D2R transmissions in Time Division Multiplexing (TDM);

[0648] The number of D2R resources for the N D2R transmissions in Frequency Division Multiplexing (FDM);

[0649] N;

[0650] X3, the N D2R resources transmitted are in the same time domain position, or the N D2R resources transmitted belong to X3 time domain positions, where X3 is a paging message or an indication of the R2D transmission or the R2D transmission before the R2D transmission, or X3 is a protocol agreement or pre-configuration, and X3 is an integer greater than or equal to 1.

[0651] Y3, the D2R resources of the N D2R transmissions belong to Y3 frequency domain positions, Y3 is a paging message or an indication of the R2D transmission or the R2D transmission before the R2D transmission, or Y3 is a protocol agreement or pre-configuration, and Y3 is an integer greater than or equal to 1;

[0652] M2, the D2R resources of the N D2R transmissions include one or more D2R resource groups, and each D2R resource group includes M2 D2R resources;

[0653] X4, the D2R resources of the N D2R transmissions include at least one D2R resource group, and each D2R resource group includes D2R resources at X4 time-domain locations, where X4 is an integer greater than 1;

[0654] Y4, the D2R resources of the N D2R transmissions include one or more D2R resource groups, each D2R resource group has M2 D2R resources at Y4 frequency domain positions, where Y4 is an integer greater than 1;

[0655] Where M2 is an integer greater than 1.

[0656] Optionally, the length of the first time period is a preset length or a configured length, including:

[0657] The length of the first time period is the length agreed upon in the protocol; or,

[0658] The length of the first time period is a pre-configured length; or,

[0659] The length of the first time period is the length configured by the network-side device or reader.

[0660] Optionally, if the reader does not configure the length of the first time to the device, the length of the first time is the length agreed upon in the protocol or the pre-configured length.

[0661] The aforementioned network-side devices can save on device power consumption.

[0662] In addition, the network-side device 1500 of this application embodiment also includes: a program or instructions stored in the memory 1505 and executable on the processor 1504. The processor 1504 calls the program or instructions in the memory 1505 to execute the methods executed by each module shown in FIG12 and achieve the same technical effect. To avoid repetition, it will not be described in detail here.

[0663] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described information transmission method embodiments and achieve the same technical effects. To avoid repetition, they will not be described again here.

[0664] The processor mentioned above is either the processor in the terminal described in the above embodiments or the processor in the network-side device. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0665] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described information transmission method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0666] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0667] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described information transmission method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0668] This application embodiment also provides a wireless communication system, including: a device and a reader / writer, wherein the device can be used to perform the steps of the transmission monitoring method described above, and the reader / writer can be used to perform the steps of the transmission method described above.

[0669] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0670] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of computer software products plus necessary general-purpose hardware platforms, and of course, they can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.), and the computer software product includes several instructions to cause the terminal or network-side device to execute the methods described in the various embodiments of this application.

[0671] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other implementations under the guidance of this application without departing from the spirit and scope of the claims. All of these implementations are within the protection scope of this application.

Claims

1. An information transmission method, comprising: The first device monitors the reader-to-device R2D transmission within a first time period. The R2D transmission carries responses to N device-to-reader D2R transmissions, where N is a positive integer. Wherein, the position of the first time is associated with the N D2R transmissions or the length of the first time is associated with the N D2R transmissions; And / or, the R2D transmission also carries R2D transmission counting information.

2. The method according to claim 1, wherein, The N D2R transmissions satisfy at least one of the following: The N D2R transmissions of D2R resources belong to the same time domain location, or the N D2R transmissions of D2R resources belong to X1 time domain locations, where X1 is a paging message or an indication of the R2D transmission or an R2D transmission prior to the R2D transmission, or X1 is a protocol agreement or pre-configuration, and X1 is an integer greater than 1. The N D2R transmissions of D2R resources belong to the same frequency domain location, or the N D2R transmissions of D2R resources belong to Y1 frequency domain locations, where Y1 is a paging message or an indication of the R2D transmission or the R2D transmission prior to the R2D transmission, or Y1 is a protocol agreement or pre-configuration, and Y1 is an integer greater than 1. N≤M1, where M1 represents the number or maximum number of D2R resources included in a D2R resource group; The D2R resources of the N D2R transmissions include a D2R resource group, and a D2R resource group includes M1 D2R resources. The D2R resources of the N D2R transmissions include multiple D2R resource groups, and each D2R resource group includes M1 D2R resources.

3. The method according to claim 2, wherein, The D2R resource group comprises M1 D2R resources at X2 time-domain locations, where X2 is an integer greater than or equal to 1; or, the D2R resource group comprises M1 D2R resources at Y2 frequency-domain locations, where Y2 is an integer greater than or equal to 1; and / or, The one or more D2R resource groups are those that are traversed first in the frequency domain and then in the time domain; or, the one or more D2R resource groups are those that are traversed first in the time domain and then in the frequency domain; and / or, A D2R resource group consists of M1 D2R resources that are first traversed in the frequency domain and then in the time domain, or a D2R resource group consists of M1 D2R resources that are first traversed in the time domain and then in the frequency domain.

4. The method according to claim 3, wherein, At least one of N, M1, X2, and Y2 is a paging message, an R2D transmission, or an R2D transmission indication prior to the R2D transmission.

5. The method according to any one of claims 2 to 4, wherein, D2R transmissions at the same time domain location correspond to the same response, or the first time associated with D2R transmissions at the same time domain location is the same or partially overlaps; or... D2R transmissions at the X1 time-domain locations correspond to the same response, or the first time associated with the D2R transmissions at the X1 time-domain locations is the same or partially overlaps; or... D2R transmissions at the Y1 frequency domain positions correspond to the same response, or the first time associated with D2R transmissions at the Y1 frequency domain positions is the same or partially overlaps; or... The responses of D2R transmissions within a D2R resource group are the same, or the first time of association of D2R transmissions corresponding to D2R resources within the same D2R resource group is the same or partially overlaps.

6. The method according to any one of claims 1 to 5, wherein, The association between the location at the first time and the N D2R transmissions includes the following: The start point, end point, or reference point of the first time is associated with the time domain location of the N D2R transmissions, wherein the D2R resources of the N D2R transmissions are located at the same time domain location; The start point, end point, or reference point of the first time is associated with the first time domain position among the N D2R resources transmitted by D2R, wherein the N D2R resources transmitted by D2R belong to X1 time domain positions, and X1 is an integer greater than 1. The start point, end point, or reference point of the first time is associated with the time domain position of the D2R transmission located at the first frequency domain position among the N D2R transmissions, wherein the N D2R transmissions are located at Y1 frequency domain positions, where Y1 is an integer greater than 1. The start point, end point, or reference point of the first time is associated with the temporal location of one or more D2R resource groups, wherein the D2R resources transmitted by the N D2Rs include one or more D2R resource groups, and each D2R resource group includes M1 D2R resources, where M1 is an integer greater than 1.

7. The method according to any one of claims 1 to 6, wherein, The counting information is used to indicate the number or maximum number of subsequent R2D transmissions sent by the reader, or the counting information is used to indicate the value obtained by adding K to the number or maximum number of subsequent R2D transmissions sent by the reader, where K is a positive integer.

8. The method according to any one of claims 1 to 7, wherein, The reader sends an R2D transmission carrying the counting information; or... Each of the multiple R2D transmissions sent by the reader carries the counting information.

9. The method according to any one of claims 1 to 8, further comprising: The first device monitors R2D transmission based on the counting information.

10. The method according to any one of claims 1 to 9, further comprising: The first device updates the R2D transmission count based on the monitored R2D transmissions, wherein monitoring of R2D transmissions is stopped when the R2D transmission count is a first preset value.

11. The method according to any one of claims 1 to 10, further comprising: When the R2D transmission carries the counting information and the counting information indicates a second preset value, the first device stops monitoring the R2D transmission.

12. The method according to any one of claims 1 to 11, further comprising: When preset conditions are met, the first device stops monitoring the R2D transmission.

13. The method according to claim 12, wherein, The preset conditions include at least one of the following: The first device receives a signal or information from the reader indicating to stop monitoring; The first device did not detect the R2D transmission corresponding to the first device; Carrier CW detected; R2D transmissions without a response to D2R transmissions were detected; D2R transmissions were detected for other devices.

14. The method according to claim 13, wherein, The information indicating the cessation of monitoring includes the count information.

15. The method according to any one of claims 1 to 14, wherein, The length of the first time period associated with the N D2R transmissions includes: The length of the first time period is associated with at least one of the following: The number of D2R resources for the N D2R transmissions in Time Division Multiplexing (TDM); The number of D2R resources for the N D2R transmissions in Frequency Division Multiplexing (FDM); N； X3, the N D2R resources transmitted are in the same time domain position, or the N D2R resources transmitted belong to X3 time domain positions, where X3 is a paging message or an indication of the R2D transmission or the R2D transmission before the R2D transmission, or X3 is a protocol agreement or pre-configuration, and X3 is an integer greater than or equal to 1. Y3, the D2R resources of the N D2R transmissions belong to Y3 frequency domain positions, Y3 is a paging message or an indication of the R2D transmission or the R2D transmission before the R2D transmission, or Y3 is a protocol agreement or pre-configuration, and Y3 is an integer greater than or equal to 1; M2, the D2R resources of the N D2R transmissions include one or more D2R resource groups, and each D2R resource group includes M2 D2R resources; X4, the D2R resources of the N D2R transmissions include at least one D2R resource group, and each D2R resource group includes D2R resources at X4 time-domain locations, where X4 is an integer greater than 1; Y4, the D2R resources of the N D2R transmissions include one or more D2R resource groups, and a D2R resource group has M2 D2R resources at Y4 frequency domain positions, where Y4 is an integer greater than 1; Where M2 is an integer greater than 1.

16. The method according to any one of claims 1 to 15, wherein, The length of the first time period is a preset length or a configured length, including: The length of the first time period is the length agreed upon in the protocol; or, The length of the first time period is a pre-configured length; or, The length of the first time period is the length configured by the network-side device or reader.

17. The method according to claim 16, wherein, If the first device does not obtain the length of the first time configured by the reader / writer, the length of the first time is the length agreed upon in the protocol or the pre-configured length.

18. An information transmission method, comprising: The reader receives D2R transmissions; The reader sends a reader-to-device R2D transmission in the first time, the R2D transmission carrying responses to N device-to-reader D2R transmissions, where N is a positive integer; Wherein, the position of the first time is associated with the N D2R transmissions or the length of the first time is associated with the N D2R transmissions; And / or, the R2D transmission also carries R2D transmission counting information.

19. The method according to claim 18, wherein, The N D2R transmissions satisfy at least one of the following: The N D2R transmissions of D2R resources belong to the same time domain location, or the N D2R transmissions of D2R resources belong to X1 time domain locations, where X1 is a paging message or an indication of the R2D transmission or an R2D transmission prior to the R2D transmission, or X1 is a protocol agreement or pre-configuration, and X1 is an integer greater than 1. The N D2R transmissions of D2R resources belong to the same frequency domain location, or the N D2R transmissions of D2R resources belong to Y1 frequency domain locations, where Y1 is a paging message or an indication of the R2D transmission or the R2D transmission prior to the R2D transmission, or Y1 is a protocol agreement or pre-configuration, and Y1 is an integer greater than 1. N≤M1, where M1 represents the number or maximum number of D2R resources included in a D2R resource group; The D2R resources of the N D2R transmissions comprise a D2R resource group, and each D2R resource group comprises M1 D2R resources. The D2R resources of the N D2R transmissions include multiple D2R resource groups, and each D2R resource group includes M1 D2R resources.

20. The method according to claim 19, wherein, The D2R resource group comprises M1 D2R resources at X2 time-domain locations, where X2 is an integer greater than 1; or, the D2R resource group comprises M1 D2R resources at Y2 frequency-domain locations, where Y2 is an integer greater than 1; and / or, The one or more D2R resource groups are those that are traversed in the frequency domain first and then in the time domain, or the one or more D2R resource groups are those that are traversed in the time domain first and then in the frequency domain.

21. The method according to claim 20, wherein, At least one of N, M1, X2, and Y2 is a paging message, an R2D transmission, or an R2D transmission indication prior to the R2D transmission.

22. The method according to any one of claims 19 to 21, wherein, D2R transmissions at the same time domain location correspond to the same response, or, D2R transmissions at the same time domain location are associated with the same first time; or, D2R transmissions at the X1 time-domain locations correspond to the same response, or the first time associated with the D2R transmissions at the X1 time-domain locations is the same; or... D2R transmissions at the Y1 frequency domain positions correspond to the same response, or the first time associated with the D2R transmissions at the Y1 frequency domain positions is the same; or... The responses of D2R transmissions corresponding to D2R resources within the same D2R resource group are the same, or the first time associated with D2R transmissions corresponding to D2R resources within the same D2R resource group is the same.

23. The method according to any one of claims 18 to 22, wherein, The association between the location at the first time and the N D2R transmissions includes the following: The start point, end point, or reference point of the first time is associated with the time domain location of the N D2R transmissions, wherein the D2R resources of the N D2R transmissions are located at the same time domain location; The start point, end point, or reference point of the first time is associated with the first time domain position among the N D2R resources transmitted by D2R, wherein the N D2R resources transmitted by D2R belong to X1 time domain positions, and X1 is an integer greater than 1. The start point, end point, or reference point of the first time is associated with the time domain position of the D2R transmission located at the first frequency domain position among the N D2R transmissions, wherein the N D2R transmissions are located at Y1 frequency domain positions, where Y1 is an integer greater than 1. The starting point, ending point, or reference point of the first time location is associated with the temporal location of one or more D2R resource groups, wherein the D2R resources of the N D2R transmissions include one or more D2R resource groups, and each D2R resource group includes M1 D2R resources, where M1 is an integer greater than 1.

24. The method according to any one of claims 18 to 23, wherein, The counting information is used to indicate the number or maximum number of subsequent R2D transmissions sent by the reader, or the counting information is used to indicate the value obtained by adding K to the number or maximum number of subsequent R2D transmissions sent by the reader, where K is a positive integer.

25. The method according to any one of claims 18 to 24, wherein, The reader sends an R2D transmission carrying the counting information; or... Each of the multiple R2D transmissions sent by the reader carries the counting information.

26. The method according to any one of claims 18 to 25, wherein, The method further includes at least one of the following: The reader updates the count of R2D transmissions based on the transmitted R2D transmissions; The reader sends a signal or message to the device instructing it to stop monitoring.

27. The method according to any one of claims 18 to 26, wherein, The length of the first time period associated with the N D2R transmissions includes: The length of the first time period is associated with at least one of the following: The number of D2R resources for the N D2R transmissions in Time Division Multiplexing (TDM); The number of D2R resources for the N D2R transmissions in Frequency Division Multiplexing (FDM); N； X3, the N D2R resources transmitted are in the same time domain position, or the N D2R resources transmitted belong to X3 time domain positions, where X3 is a paging message or an indication of the R2D transmission or the R2D transmission before the R2D transmission, or X3 is a protocol agreement or pre-configuration, and X3 is an integer greater than or equal to 1. Y3, the D2R resources of the N D2R transmissions belong to Y3 frequency domain positions, Y3 is a paging message or an indication of the R2D transmission or the R2D transmission before the R2D transmission, or Y3 is a protocol agreement or pre-configuration, and Y3 is an integer greater than or equal to 1; M2, the D2R resources of the N D2R transmissions include one or more D2R resource groups, and each D2R resource group includes M2 D2R resources; X4, the D2R resources of the N D2R transmissions include at least one D2R resource group, and each D2R resource group includes D2R resources at X4 time-domain locations, where X4 is an integer greater than 1; Y4, the D2R resources of the N D2R transmissions include one or more D2R resource groups, each D2R resource group has M2 D2R resources at Y4 frequency domain positions, where Y4 is an integer greater than 1; Where M2 is an integer greater than 1.

28. The method according to any one of claims 18 to 27, wherein, The length of the first time period is a preset length or a configured length, including: The length of the first time period is the length agreed upon in the protocol; or, The length of the first time period is a pre-configured length; or, The length of the first time period is the length configured by the network-side device or reader.

29. The method according to claim 28, wherein, If the reader does not configure the length of the first time to the device, the length of the first time is the length agreed upon in the protocol or the pre-configured length.

30. An information transmission device, comprising: The receiving module is used to monitor the reader-to-device R2D transmission in the first time, wherein the R2D transmission carries responses to N device-to-reader D2R transmissions, where N is a positive integer; Wherein, the position of the first time is associated with the N D2R transmissions or the length of the first time is associated with the N D2R transmissions; And / or, the R2D transmission also carries R2D transmission counting information.

31. The apparatus according to claim 30, wherein, The N D2R transmissions satisfy at least one of the following: The N D2R transmissions of D2R resources belong to the same time domain location, or the N D2R transmissions of D2R resources belong to X1 time domain locations, where X1 is a paging message or an indication of the R2D transmission or an R2D transmission prior to the R2D transmission, or X1 is a protocol agreement or pre-configuration, and X1 is an integer greater than 1. The N D2R transmissions of D2R resources belong to the same frequency domain location, or the N D2R transmissions of D2R resources belong to Y1 frequency domain locations, where Y1 is a paging message or an indication of the R2D transmission or the R2D transmission prior to the R2D transmission, or Y1 is a protocol agreement or pre-configuration, and Y1 is an integer greater than 1. N≤M1, where M1 represents the number or maximum number of D2R resources included in a D2R resource group; The D2R resources of the N D2R transmissions include a D2R resource group, and a D2R resource group includes M1 D2R resources. The D2R resources of the N D2R transmissions include multiple D2R resource groups, and each D2R resource group includes M1 D2R resources. Where M1 represents the number or maximum number of D2R resources included in a D2R resource group.

32. A transmission device, comprising: The receiving module is used to receive D2R transmissions; The sending module is used to send reader-to-device R2D transmissions in the first time, wherein the R2D transmissions carry responses to N device-to-reader D2R transmissions, where N is a positive integer; Wherein, the position of the first time is associated with the N D2R transmissions or the length of the first time is associated with the N D2R transmissions; And / or, the R2D transmission also carries R2D transmission counting information.

33. The apparatus according to claim 32, wherein, The N D2R transmissions satisfy at least one of the following: The N D2R transmissions of D2R resources belong to the same time domain location, or the N D2R transmissions of D2R resources belong to X1 time domain locations, where X1 is a paging message or an indication of the R2D transmission or an R2D transmission prior to the R2D transmission, or X1 is a protocol agreement or pre-configuration, and X1 is an integer greater than 1. The N D2R transmissions of D2R resources belong to the same frequency domain location, or the N D2R transmissions of D2R resources belong to Y1 frequency domain locations, where Y1 is a paging message or an indication of the R2D transmission or the R2D transmission prior to the R2D transmission, or Y1 is a protocol agreement or pre-configuration, and Y1 is an integer greater than 1. The N≤M1, where M1 represents the number of D2R resources included in a D2R resource group; The D2R resources of the N D2R transmissions comprise a D2R resource group, and each D2R resource group comprises M1 D2R resources. The D2R resources of the N D2R transmissions include multiple D2R resource groups, and each D2R resource group includes M1 D2R resources. Where M1 represents the number of D2R resources included in a D2R resource group.

34. An apparatus comprising a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the information transmission method as claimed in any one of claims 1 to 17.

35. A reader / writer, comprising a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the information transmission method as claimed in any one of claims 18 to 29.

36. A readable storage medium storing a program or instructions that, when executed by a processor, implement the steps of the information transmission method as claimed in any one of claims 1 to 17, or implement the steps of the information transmission method as claimed in any one of claims 18 to 29.

37. A computer program product stored in a storage medium, the computer program product being executed by at least one processor to implement the steps of the information transmission method as claimed in any one of claims 1 to 17, or to implement the steps of the information transmission method as claimed in any one of claims 18 to 29.

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