Response method, device, equipment, reader, medium and program product

Abstract

The application discloses a response method, device, equipment, reader, medium and program product, and belongs to the technical field of communication. The response method of the application comprises the following steps: a device receives Y reader-to-device R2D transmissions, wherein Y is a positive integer; and the device responds to X R2D transmissions in the Y R2D transmissions, wherein X is a positive integer less than or equal to Y.

Description

Technical Field

[0001] This application belongs to the field of communication technology, specifically relating to a response method, apparatus, device, reader, medium, and program product. Background Technology

[0002] In a communication system, the transmission sent by a reader to a device is called a Reader-to-Device (R2D) transmission. Upon receiving an R2D transmission, the device responds, for example, by sending a Device-to-Reader (D2R) transmission to the reader. In some related technologies, the device enters a locked state upon receiving an R2D transmission and directly responds to that transmission. This means that each received R2D transmission results in a direct response, leading to poor flexibility in device response and impacting communication performance. Summary of the Invention

[0003] This application provides a response method, apparatus, device, reader, medium, and program product that can solve the problem of poor communication performance of devices.

[0004] Firstly, a response method is provided, including:

[0005] The device receives R2D transmissions from Y readers, where Y is a positive integer.

[0006] The device responds to X R2D transmissions out of Y R2D transmissions, where X is a positive integer less than or equal to Y.

[0007] Secondly, a response method is provided, including:

[0008] The reader sends Y readers to the device for R2D transmission, where Y is a positive integer;

[0009] The reader receives responses to X R2D transmissions, where the X R2D transmissions are X of the Y R2D transmissions, and X is a positive integer less than or equal to Y.

[0010] Thirdly, a response device is provided, comprising:

[0011] The receiving module is used to receive R2D transmissions from Y readers to the device, where Y is a positive integer;

[0012] The processing module is used to respond to X R2D transmissions out of Y R2D transmissions, where X is a positive integer less than or equal to Y.

[0013] Fourthly, a response device is provided, comprising:

[0014] The sending module is used to send Y readers to the device for R2D transmission, where Y is a positive integer;

[0015] The receiving module is used to receive responses to X R2D transmissions, wherein the X R2D transmissions are X R2D transmissions out of the Y R2D transmissions, and X is a positive integer less than or equal to Y.

[0016] Fifthly, a response device is provided, the device being configured to perform the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0017] In a sixth aspect, an apparatus is provided, 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.

[0018] In a seventh aspect, a device is provided, including a processor and a communication interface, wherein the communication interface is used to receive Y reader-to-device R2D transmissions, where Y is a positive integer; the processor is used to respond to X R2D transmissions out of the Y R2D transmissions, where X is a positive integer less than or equal to Y.

[0019] In an eighth aspect, a reader / writer is provided, 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 second aspect.

[0020] In a ninth aspect, a reader / writer is provided, including a processor and a communication interface, wherein the communication interface is used to send Y reader / writer R2D transmissions to the device, where Y is a positive integer; and to receive responses to X R2D transmissions, wherein the X R2D transmissions are X of the Y R2D transmissions, where X is a positive integer less than or equal to Y.

[0021] In a tenth aspect, 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.

[0022] Eleventhly, 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 described in the first aspect, and the reader / writer is configured to perform the steps of the method described in the second aspect.

[0023] In a twelfth 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.

[0024] In a thirteenth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to perform 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 perform the steps of the method as described in the second aspect.

[0025] In this embodiment, the device receives Y read / write operations from the device, where Y is a positive integer; the device responds to X of the Y R2D operations, where X is a positive integer less than or equal to Y. Because the device responds to X of the Y R2D operations, it supports flexible responses to the received R2D operations, allowing it to determine X of the Y R2D operations to respond to, thereby improving the device's communication performance. Attached Figure Description

[0026] Figure 1 This is a block diagram of a wireless communication system applicable to embodiments of this application;

[0027] Figure 2 This is a schematic diagram of a scenario provided in an embodiment of this application;

[0028] Figure 3 This is a schematic diagram of another scenario provided by an embodiment of this application;

[0029] Figure 4 This is a schematic diagram illustrating the interaction between a reader and a tag, provided in an embodiment of this application.

[0030] Figure 5 This is a flowchart of a response method provided in an embodiment of this application;

[0031] Figure 6 This is a schematic diagram of a response provided in an embodiment of this application;

[0032] Figure 7 This is another response diagram provided in an embodiment of this application;

[0033] Figure 8 This is a flowchart of another response method provided in an embodiment of this application;

[0034] Figure 9 This is another response diagram provided in an embodiment of this application;

[0035] Figure 10 This is another response diagram provided in an embodiment of this application;

[0036] Figure 11 This is another response diagram provided in an embodiment of this application;

[0037] Figure 12 This is another response diagram provided in an embodiment of this application;

[0038] Figure 13 This is another response diagram provided in an embodiment of this application;

[0039] Figure 14 This is another response diagram provided in an embodiment of this application;

[0040] Figure 15 This is another response diagram provided in an embodiment of this application;

[0041] Figure 16 This is a structural diagram of a response device provided in an embodiment of this application;

[0042] Figure 17 This is a structural diagram of another response device provided in an embodiment of this application;

[0043] Figure 18 This is a structural diagram of a communication device provided in an embodiment of this application;

[0044] Figure 19 This is a structural diagram of a terminal provided in an embodiment of this application;

[0045] Figure 20 This 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 1This diagram illustrates a block diagram of a wireless communication system applicable to embodiments 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 devices (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game consoles, personal computers (PCs), ATMs, or self-service machines, 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 (such as 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 this application embodiment, the device can be an Internet of Things (IoT) device, such as an Ambient IoT (A-IoT) device. The A-IoT device can be characterized based on its energy storage capacity and its ability to generate and transmit radio frequency signals. A-IoT devices include the following types:

[0054] Device 1: No energy storage, no independent signal generation / amplification, i.e., backscatter transmission.

[0055] Device 2a: It has energy storage but no independent signal generation, i.e., backscatter transmission. The use of the stored energy may include amplification of the reflected signal.

[0056] Device 2b: 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] A-IoT can be deployed in various scenarios, and two of them are introduced below.

[0059] like Figure 2 In the topology shown, the A-IoT base station (BS) and A-IoT devices communicate directly to transmit A-IoT data and signaling. The base station sending A-IoT R2D transmissions (also called R2D signals) and the base station receiving A-IoT D2R transmission signals can be the same or different.

[0060] like Figure 3As shown in Topology 2, in this scenario, the A-IoT BS communicates with A-IoT devices through intermediate nodes. These intermediate nodes can be terminals, repeaters, relays, or Integrated Access and Backhaul (IAB) nodes. The BS can control the intermediate nodes via air interface signaling or other interfaces; for example, the BS can control the terminals through the NRUu's air interface.

[0061] In some embodiments, A-IoT command types include inventory and command;

[0062] Inventory is the most basic and important business of A-IoT, which enables A-IoT servers to learn about one or more known or unknown A-IoT devices within the coverage area of ​​the reader via the 3GPP network.

[0063] After learning that an A-IoT device has been identified by the network, the A-IoT server may be able to issue commands to the device via the network, such as those shown in Table 1 below:

[0064] Table 1:

[0065]

[0066] In some embodiments, the main data / service types of A-IoT include:

[0067] Device-originated (DO);

[0068] Device-terminated (DT)

[0069] 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:

[0070] 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.

[0071] Device-originated–device-terminated triggered (DO-DTT) refers to a data transfer initiated by the device itself 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.

[0072] In some embodiments, the general A-IoT process is as follows: Figure 4 As shown, it includes the following steps:

[0073] Step A, A-IoT paging, is when the reader sends an A-IoT paging message to the device;

[0074] Step B, Device-to-Reader D2R data transmission, includes D2R data transmission and may also include A-IoT random access procedure;

[0075] Step C, data transmission, can include R2D data transmission and D2R data transmission.

[0076] The inventory-only process includes: Step A + Step B;

[0077] The inventory and command process includes: Step A + Step B + Step C.

[0078] The response methods, apparatus, devices, readers, media, and program products provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0079] Please see Figure 5 , Figure 5 This is a flowchart of a response method provided in an embodiment of this application, such as... Figure 5 As shown, it includes the following steps:

[0080] Step 501: The device receives R2D transmissions from Y readers, where Y is a positive integer;

[0081] Step 502: The device responds to X R2D transmissions out of Y R2D transmissions, where X is a positive integer less than or equal to Y.

[0082] The aforementioned devices may be Internet of Things (IoT) devices, such as A-IoT devices, or they may be backscatter communication devices.

[0083] The aforementioned reader (also known as a reader) can be a terminal or network-side device, or a repeater, or an integrated access backhaul (IAB) node, etc.

[0084] The aforementioned R2D transmission can also be referred to as R2D signal or R2D message.

[0085] The aforementioned Y R2D transmissions can be R2D transmissions sent by the same reader or R2D transmissions sent by different readers, and the number of R2D transmissions sent by different readers can be the same or different.

[0086] The above response to X R2D transmissions out of Y R2D transmissions refers to sending a response to X R2D transmissions out of Y R2D transmissions, such as sending X D2R transmissions. D2R transmissions can also be called D2R signals or D2R messages.

[0087] In some implementations, the X R2D transmissions are selected and determined by the device, that is, the device selects or determines X R2D transmissions from Y R2D transmissions.

[0088] In some implementations, the device described above can respond to X R2D transmissions in a half-duplex manner.

[0089] It should be noted that the execution order of steps 501 and 502 is not limited in this embodiment. In some implementations, the execution order of steps 501 and 502 may overlap. For example, for the aforementioned Y R2D transmissions, the device determines whether to respond to each transmission after receiving it, and ultimately responds to X R2D transmissions. Or, as... Figure 5 As shown, after step 501 is executed, step 502 is executed, that is, after receiving Y R2D transmissions, X R2D transmissions are responded to.

[0090] In some implementations, the values ​​of Y and X are not limited. For example, they can be determined by the device itself, agreed upon by the protocol, or configured by the network-side device.

[0091] In this embodiment, the device receives Y read / write operations from the device, where Y is a positive integer; the device responds to X of the Y R2D operations, where X is a positive integer less than or equal to Y. Because the device responds to X of the Y R2D operations, it supports flexible responses to the received R2D operations, allowing it to select X R2D operations from the Y operations to respond to, thereby improving the device's communication performance.

[0092] Since Y can be an integer greater than 1, this allows the device to receive multiple R2D transmissions (such as multiple service requests), thereby improving communication efficiency. For example, it can improve inventory efficiency, such as significantly improving inventory efficiency in indoor scenarios, or improving inventory efficiency when different readers send R2D transmissions for different purposes or functions. It can also improve coverage, such as significantly improving coverage in outdoor scenarios by activating devices through R2D transmissions. Furthermore, it can improve positioning performance, such as supporting the simultaneous transmission of positioning reference signals from multiple base stations to jointly locate the target.

[0093] Furthermore, since it responds to X of Y R2D transmissions, it can avoid conflicts when the device receives multiple R2D transmissions and correctly respond to the R2D transmissions sent by the reader / writer.

[0094] As an optional implementation, the X R2D transmissions are determined based on the first information;

[0095] The aforementioned first information may include information obtained through at least one of the following methods: network-side device indication, protocol agreement, or predefined method.

[0096] In some implementations, the first information includes at least one of the following:

[0097] The types of R2D transmissions, reader information for R2D transmissions, instructions sent by network-side devices, reception time order of R2D transmissions, frequency domain resource order of R2D transmissions, signal quality of R2D transmissions, transmission information of R2D transmissions, and capability information of the devices.

[0098] The types of R2D transmissions mentioned above may include at least one of the following:

[0099] Inventory, write, read, and R2D transfers used to trigger random access.

[0100] The aforementioned R2D transmission types can have different response priorities for different R2D transmission types, or the device can respond to R2D transmissions of a specific transmission type. In this way, the device can determine the R2D transmission to respond to based on the type of R2D transmission, thereby improving the flexibility of terminal response.

[0101] The R2D used to trigger random access includes two types of R2D used to trigger contention-based or non-contention-based random access.

[0102] The reader / writer information mentioned above may include at least one of the following:

[0103] The identifier of the reader / writer and the type of the reader / writer.

[0104] The type of reader mentioned above can be the device type of the reader, such as a terminal or network-side device. Alternatively, the type of reader can include the role type of the reader. For example, when the terminal is a reader, there can be one master reader and the others are slave readers. When the device receives a master or slave reader, it responds to the master reader first. That is, different readers have a priority.

[0105] The aforementioned reader information may be the priority of responses to different reader information, or the R2D transmission of device responses to reader information. In this way, the device can determine the R2D transmission of the response based on the reader information, thereby improving the flexibility of terminal response.

[0106] The instructions sent by the network-side devices mentioned above can refer to the devices responding to specific R2D transmissions, such as R2D transmissions of a specific type, specific reader / writer, specific time, or specific signal quality.

[0107] In this way, the indication sent by the network-side device can dynamically indicate the device's response to R2D transmission.

[0108] The above-mentioned R2D transmission reception time order refers to the time order in which the device receives the R2D transmissions. In this way, the device can determine X R2D transmissions to respond to according to the time order of receipt, such as responding only to the first received R2D transmission, or responding only to the first X received R2D transmissions.

[0109] The aforementioned frequency domain resources may include at least one of carrier frequency and bandwidth.

[0110] The frequency domain resource order of the R2D transmission mentioned above refers to the order in which the frequency domain resources occupied by the R2D transmission are arranged. In this way, the device can determine X R2D transmissions to respond to according to the order of the received frequency domain resources, such as responding only to the R2D transmissions with the frequency domain resource index, or responding only to the first X R2D transmissions sorted by the frequency domain resource index.

[0111] The signal quality of the aforementioned R2D transmission may include at least one of the following:

[0112] Signal to Interference plus Noise Ratio (SINR), Signal-to-Noise Ratio (SNR), Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), and Received Signal Strength Indication (RSSI).

[0113] The device can select X R2D transmissions with better signal quality to respond to in order to improve the transmission performance between the device and the reader.

[0114] The transmission information in the aforementioned R2D transmission can refer to information such as parameters, resources, or content of the R2D transmission.

[0115] In some implementations, the transmitted information includes at least one of the following:

[0116] Carrier frequency, bandwidth, encoding method, presence of cyclic redundancy check (CRC), presence of forward error correction (FEC), whether repeated transmission is performed, number of repeated transmissions, number of chips in a single symbol, whether a preamble is used, and type of preamble.

[0117] The number of repeated transmissions mentioned above can be the R value defined in the protocol, that is, the codeword is repeated R times in the time length of one information bit; the number of chips in a single symbol can be expressed as the value M, that is, there are M chips in a symbol.

[0118] In this embodiment, it is possible to flexibly respond to R2D transmissions based on at least one of the above transmission information, that is, the specific X R2D transmissions to be responded to are determined by the device based on at least one of the above information.

[0119] The capability information of the above-mentioned equipment can also indicate the type of the above-mentioned equipment. For example, the capabilities of the three types of equipment described above, namely equipment 1, equipment 2a and equipment 2b, are different.

[0120] The capability information of the aforementioned devices enables the devices to respond within their capabilities, thereby avoiding device malfunctions. For example, some high-capacity devices can respond to multiple R2D transmissions, while low-capacity devices can only respond to one R2D transmission. For instance, device type 1 devices can only respond to one R2D transmission, while devices types 2a and 2b can respond to multiple R2D transmissions.

[0121] It should be noted that the embodiments of this application are not limited to determining the above X R2D transmissions based on the first information. For example, in some embodiments, the device may also randomly determine X R2D transmissions to respond.

[0122] In some implementations, the X R2D transmissions are determined based on the priority corresponding to the first information.

[0123] The priority corresponding to the first information mentioned above refers to the priority of R2D transmission determined based on the first information, which may include one or more priorities.

[0124] The aforementioned X R2D transmissions are determined based on the priority corresponding to the first information. This can mean that the device selects or determines X R2D transmissions from the received Y R2D transmissions to respond to, according to the priority corresponding to the first information.

[0125] In some implementations, the priority includes at least one of the following:

[0126] The first priority of the type of R2D transmission;

[0127] The second priority of the reader / writer for R2D transmission;

[0128] The third priority of the receiving time order in R2D transmission;

[0129] The fourth priority in the frequency domain resource ordering for R2D transmission;

[0130] The fifth priority for signal quality in R2D transmission;

[0131] The sixth priority for R2D transmission information.

[0132] The first priority of the above-mentioned R2D transmission type can indicate that the device only responds to a specific type of R2D transmission, or responds to a specific type of R2D transmission with priority. For example, the device only responds to the inventory command, that is, the inventory command has a higher priority than the write command, or conversely, it only responds to the write command, that is, the write command has a higher priority than the inventory command.

[0133] The second priority of the reader in the above R2D transmission can be a priority determined based on the reader's identifier or reader information. For example, the priority of the reader with the smaller identifier is higher than that of the reader with the larger identifier. The device responds to the inventory command of reader #1 first and then responds to the write command of reader #2; or vice versa, it responds to the write command of reader #2 first and then responds to the inventory command of reader #1.

[0134] The third priority of the above-mentioned R2D transmission reception time order can be to prioritize responding to R2D transmissions with earlier reception times, or to only respond to R2D transmissions with the earliest reception times; or conversely, to prioritize responding to R2D transmissions with later reception times.

[0135] The fourth priority of the frequency domain resource order of the above-mentioned R2D transmission can be to give priority to R2D transmissions with smaller frequency domain resource indices, or conversely, to give priority to R2D transmissions with larger frequency domain resource indices.

[0136] The fifth priority for signal quality in the aforementioned R2D transmission can be to prioritize responding to R2D transmissions with good signal quality or to respond only to R2D transmissions with the best signal quality.

[0137] The sixth priority of the R2D transmission information mentioned above can be a priority defined based on at least one of the following: carrier frequency, bandwidth, encoding method, presence of CRC, presence of FEC, whether repeated transmission, number of repeated transmissions, number of chips in a single symbol, whether a preamble is used, and preamble type.

[0138] It should be noted that the first to sixth priorities mentioned above can be the priorities set by the aforementioned devices, or the priorities agreed upon by the protocol or configured by the network-side devices.

[0139] Using at least one of the above-mentioned priorities from first to sixth can make the device more flexible in responding to R2D transmissions.

[0140] In some implementations, when the priority corresponding to the first information includes multiple priorities such as the first priority, the second priority, the third priority, the fourth priority, the fifth priority, and the sixth priority, there is a preset order of use among the multiple priorities.

[0141] The aforementioned multiple priorities have a preset usage order. This can be achieved by determining the X R2D transmissions sequentially based on these priorities when responding to R2D transmissions. This preset usage order can be determined by the device, agreed upon by the protocol, or configured by the network-side device. For example:

[0142] Second priority > First priority; or First priority > Second priority; or,

[0143] Second priority > First priority > Third priority; or Second priority > Third priority > First priority; or,

[0144] Second priority > First priority > Third priority > Fourth priority; or Second priority > Third priority > Fourth priority > First priority; or,

[0145] Fifth priority > Second priority > First priority > Fourth priority; or Fifth priority > Second priority > Fourth priority > First priority.

[0146] In this context, ">" indicates that the former is used before the latter. For example, second priority > first priority. The priority response order of the R2D transmission of reader #1 is determined first based on the second priority. The R2D transmission of reader #1 includes different types of R2D transmission. The priority response order of the R2D transmission of reader #1 is then determined based on the first priority.

[0147] By using the above-mentioned priority sequence, the device can better respond to R2D transmissions, thereby improving the device's communication performance.

[0148] In some implementations, the number of R2D transmissions is not limited to X based on the priority corresponding to the first information. For example, some first information may not have a priority, such as only responding to R2D transmissions indicated by a specific time, a specific reader / writer, or a network-side device.

[0149] As an optional implementation, the Y R2D transmissions include:

[0150] Y time-division multiplexed R2D transmissions within a first time period, wherein the first time period includes a first time window, a first R2D reception time, a first R2D duration, or a first period; or

[0151] Frequency division multiplexing of Y R2D transmissions.

[0152] The first time window, the first R2D reception time, the first R2D duration, or the first period can be agreed upon by the protocol, configured by the network-side device, or indicated by the reader / writer.

[0153] The first time window, the first R2D reception time, the first R2D duration, or the first period mentioned above can be periodic or aperiodic, and the duration or length of time can be the same or different.

[0154] Because the device receives Y R2D transmissions in a time-division multiplexed manner during the first time, it can save power consumption by receiving Y R2D transmissions more centrally, such as allowing it to go into sleep mode outside of the first time.

[0155] In the case of frequency division multiplexing, there is no restriction that Y R2D transmissions are on the same frequency point; that is, the frequency points of Y R2D transmissions can be the same or different.

[0156] Furthermore, in the case of frequency division multiplexing, the reception times of Y R2D transmissions are the same or partially overlap.

[0157] Because of frequency division multiplexing, the device can receive Y R2D transmissions more efficiently, thus saving power consumption.

[0158] In some implementations, one or more readers send R2D transmissions to the device during the first time period; or

[0159] The device does not expect any reader to send R2D transmissions to it outside the first time period, wherein the device either does not receive R2D transmissions outside the first time period or does not respond to R2D transmissions received outside the first time period; or

[0160] The device is required to receive R2D transmissions within the first time period.

[0161] The phrase "one or more readers send R2D transmissions to the device within the first time period" can mean that one or more readers are allowed to send R2D transmissions to the device within the first time period, or that the device is able to receive R2D transmissions sent to the device by one or more readers within the first time period.

[0162] Since one or more readers send R2D transmissions to the device within the first time period, the device can receive Y R2D transmissions more efficiently, thereby saving the device's power consumption.

[0163] The aforementioned device does not expect any reader to send R2D transmissions to the device outside of the first time period, which allows the device to avoid listening outside of the first time period, thereby saving the device's power consumption. Alternatively, it may not respond to R2D transmissions received outside of the first time period, which can also save the device's power consumption.

[0164] While the above requirement states that the device receives R2D transmissions within the first time period, it may be required or not required that the device receive R2D transmissions outside the first time period.

[0165] Since the device is required to receive R2D transmissions within the first time period, this allows the device to receive Y R2D transmissions more efficiently, thereby saving the device's power consumption.

[0166] As an optional implementation, when X is greater than 1, the responses of the X R2D transmissions employ at least one of time division multiplexing and frequency division multiplexing.

[0167] In this embodiment, due to time-division or frequency-division multiplexing, the first device can respond to X R2D transmissions more efficiently, thereby saving the device's power consumption.

[0168] As an optional implementation, when X is less than Y:

[0169] The device ignores or does not store YX R2D transmissions; or

[0170] The device stores YX R2D transmissions, and responds to all or part of the stored YX R2D transmissions in a subsequent response.

[0171] Wherein, the YX R2D transmissions are the R2D transmissions other than the X R2D transmissions among the Y R2D transmissions.

[0172] Among these, ignoring or not storing YX R2D transmissions can save device storage space and power consumption.

[0173] The aforementioned device stores YX R2D transmissions, so that all or part of the stored YX R2D transmissions can be responded to later, thereby improving the device's response performance.

[0174] In some embodiments, when the device stores YX R2D transmissions, the method further includes:

[0175] The device determines at least one R2D transmission from the stored YX R2D transmissions and responds accordingly;

[0176] Among them, the above-mentioned at least one R2D transmission can be one or more R2D transmissions randomly selected from the stored YX R2D transmissions or selected according to the first information.

[0177] The aforementioned at least one R2D transmission can be YX R2D transmissions. If the number of allowed responses is greater than the number of stored R2D transmissions, all responses are stored. Alternatively, at least one R2D transmission can be a portion of the YX R2D transmissions. If the number of allowed responses is less than the number of stored R2D transmissions, only the number of failed transmissions among X of the YX R2D transmissions is selected. For example, if Y=5, X=3, and the device stores the remaining 2, and one of the 3 R2D transmissions fails or demodulation fails, then an R2D transmission is randomly selected from the remaining 2 stored R2D transmissions or selected according to the aforementioned first information to continue responding. This ensures the device's response performance.

[0178] In some implementations, if a response fails in any of the aforementioned X R2D transmissions, at least one R2D transmission from the stored YX R2D transmissions can be selected to respond, thus ensuring the device's response performance.

[0179] As an optional implementation, the timing relationship between the X device-to-reader D2R transmissions responding to the X R2D transmissions and the X R2D transmissions includes:

[0180] The X D2R transmissions are located after the X R2D transmissions; or

[0181] The first D2R transmission in the X D2R transmissions is located after the first R2D transmission in the X R2D transmissions. If there is a second R2D transmission in the X R2D transmissions, the first D2R transmission is located before the second R2D transmission, and the first D2R transmission is a response to the first R2D transmission.

[0182] The aforementioned X D2R transmissions following the X R2D transmissions mean that X D2R transmissions are sent only after all X R2D transmissions have been received. For example: Figure 6 In the first scenario, within one operating cycle, after the device receives Y R2D transmissions within the R2D duration, it then sends X D2R transmissions within the D2R duration.

[0183] Since the X D2R transmissions follow the X R2D transmissions, the device can determine the X R2D transmissions that need to be responded to from among the received M R2D transmissions after receiving M R2D transmissions. Because the M R2D transmissions have already been received when the X R2D transmissions are determined, the information of these M R2D transmissions can be determined, thus enabling the device to better determine the X R2D transmissions to respond to, thereby improving the device's response performance.

[0184] The first D2R transmission in the aforementioned X D2R transmissions follows the first R2D transmission in the aforementioned X R2D transmissions. The first D2R transmission following the second R2D transmission can be due to D2R transmissions existing between different R2D transmissions, for example... Figure 6 In the second scenario shown, within an operating cycle, after receiving an R2D transmission within one R2D duration, the device sends a D2R transmission within a corresponding D2R duration. Then, after receiving another R2D transmission within another R2D duration, the device sends a D2R transmission within the corresponding D2R duration. This allows for timely responses to R2D transmissions, improving the transmission efficiency between the device and the reader.

[0185] As an optional implementation, the frequency domain relationship between the X D2R transmissions responding to the X R2D transmissions and the X R2D transmissions includes:

[0186] The frequency domain resources of the X D2R transmissions are the same as the frequency domain resources of the X R2D transmissions; or,

[0187] The X transmission pairs include the first transmission pair and the second transmission pair; or

[0188] Each of the X transmission pairs is the first transmission pair; or

[0189] Each of the X transmission pairs is a second transmission pair;

[0190] The transmission pair includes R2D transmission and D2R transmission responding to the R2D transmission. The frequency domain resources of the R2D transmission and the D2R transmission included in the first transmission pair are the same, while the frequency domain resources of the R2D transmission and the D2R transmission included in the first transmission pair are different.

[0191] The aforementioned frequency domain resources may include at least one of carrier and bandwidth.

[0192] The statement that the frequency domain resources of the aforementioned X D2R transmissions are the same as those of the aforementioned X D2R transmissions can mean that the frequency domain resources of all D2R transmissions are the same as those of all R2D transmissions. In other words, the X D2R transmissions and the X D2R transmissions are transmitted on the same frequency domain resources, which can save frequency domain resources.

[0193] The aforementioned transmission pair, including R2D transmission and D2R transmission responding to the R2D transmission, can be understood as an R2D transmission and a D2R transmission responding to the R2D transmission forming a transmission pair.

[0194] The above-mentioned R2D transmission and D2R transmission having the same frequency domain resources can mean that the R2D transmission and D2R transmission have the same frequency points and / or the same bandwidth.

[0195] The aforementioned X transmission pairs, including the first and second transmission pairs, can be understood as some transmission pairs having the same frequency domain resources, while others having different transmission resources. For example: Figure 7 As shown, Cmd represents R2D transmission, and Reply represents D2R transmission. The same identifier, Cmd and Reply, constitutes a transmission pair. Therefore, in... Figure 7 There are transmission pairs with the same or different frequency domain resources.

[0196] The fact that each of the above X transmission pairs is the first transmission pair means that each transmission pair has the same frequency domain resources.

[0197] The fact that each of the above X transmission pairs is a second transmission pair means that the frequency domain resources of each transmission pair are different.

[0198] The frequency domain relationship between the aforementioned X D2R transmissions and the X R2D transmissions can support a more flexible response.

[0199] As an optional implementation, the method further includes:

[0200] The device receives the preamble and performs timed synchronization based on the preamble.

[0201] The aforementioned preamble can be sent by the reader to the aforementioned device.

[0202] The aforementioned preamble can be sent on demand or periodically.

[0203] In this implementation, timing synchronization based on preamble can improve the transmission performance between the device and the reader.

[0204] In this embodiment, the device receives Y read / write operations from the device, where Y is a positive integer; the device responds to X of the Y R2D operations, where X is a positive integer less than or equal to Y. Because the device responds to X of the Y R2D operations, it supports flexible responses to the received R2D operations, allowing it to select X R2D operations from the Y operations to respond to, thereby improving the device's communication performance.

[0205] Please see Figure 8 , Figure 8 This is a flowchart of another response method provided in the embodiments of this application, such as... Figure 8 As shown, it includes the following steps:

[0206] Step 801: The reader sends Y readers to the device R2D transmission, where Y is a positive integer.

[0207] Step 802: The reader receives responses to X R2D transmissions, where the X R2D transmissions are X R2D transmissions out of the Y R2D transmissions, and X is a positive integer less than or equal to Y.

[0208] It should be noted that this embodiment mainly describes the case where Y R2D transmissions are sent by one reader / writer, while in the embodiments of this application, Y R2D transmissions can be sent by one or more readers / writers to the same device.

[0209] Optionally, the X R2D transmissions are determined based on the first information;

[0210] The first information includes at least one of the following:

[0211] The types of R2D transmissions, reader information for R2D transmissions, instructions sent by network-side devices, reception time order of R2D transmissions, frequency domain resource order of R2D transmissions, signal quality of R2D transmissions, transmission information of R2D transmissions, and capability information of the devices.

[0212] Optionally, the type of R2D transmission includes at least one of the following:

[0213] Inventory, writing, reading, and R2D transfers used to trigger random access.

[0214] Optionally, the reader information includes at least one of the following:

[0215] The identifier of the reader / writer and the type of the reader / writer.

[0216] Optionally, the transmission information includes at least one of the following:

[0217] Carrier frequency, bandwidth, encoding method, presence of Cyclic Redundancy Check (CRC), presence of Forward Error Correction (FEC), whether repeated transmission is performed, number of repeated transmissions, number of chips in a single symbol, whether a preamble is used, and type of preamble.

[0218] Optionally, the X R2D transmissions are determined based on the priority corresponding to the first information.

[0219] Optionally, the priority includes at least one of the following:

[0220] The first priority of the type of R2D transmission;

[0221] The second priority of the reader / writer for R2D transmission;

[0222] The third priority of the receiving time order in R2D transmission;

[0223] The fourth priority in the frequency domain resource ordering for R2D transmission;

[0224] The fifth priority for signal quality in R2D transmission;

[0225] The sixth priority for R2D transmission information.

[0226] Optionally, when the priority corresponding to the first information includes multiple priorities such as the first priority, the second priority, the third priority, the fourth priority, the fifth priority, and the sixth priority, there is a preset order of use among the multiple priorities.

[0227] Optionally, the Y R2D transmissions include:

[0228] Y time-division multiplexed R2D transmissions within a first time period, wherein the first time period includes a first time window, a first R2D reception time, a first R2D duration, or a first period; or

[0229] Frequency division multiplexing of Y R2D transmissions.

[0230] Optionally, the reader sends an R2D transmission to the device during the first time period; or

[0231] The reader does not send R2D transmissions to the device outside of the first time period.

[0232] Optionally, when X is greater than 1, the responses of the X R2D transmissions employ at least one of time-division multiplexing and frequency-division multiplexing.

[0233] Optionally, the timing relationship between the X device-to-reader D2R transmissions responding to the X R2D transmissions and the X R2D transmissions includes:

[0234] The X D2R transmissions are located after the X R2D transmissions; or

[0235] The first D2R transmission in the X D2R transmissions is located after the first R2D transmission in the X R2D transmissions. If there is a second R2D transmission in the X R2D transmissions, the first D2R transmission is located before the second R2D transmission, and the first D2R transmission is a response to the first R2D transmission.

[0236] Optionally, the frequency domain relationship between the X D2R transmissions responding to the X R2D transmissions and the X R2D transmissions includes:

[0237] The frequency domain resources of the X D2R transmissions are the same as the frequency domain resources of the X R2D transmissions; or,

[0238] The X transmission pairs include the first transmission pair and the second transmission pair; or

[0239] Each of the X transmission pairs is the first transmission pair; or

[0240] Each of the X transmission pairs is a second transmission pair;

[0241] The transmission pair includes R2D transmission and D2R transmission responding to the R2D transmission. The frequency domain resources of the R2D transmission and the D2R transmission included in the first transmission pair are the same, while the frequency domain resources of the R2D transmission and the D2R transmission included in the first transmission pair are different.

[0242] Optionally, the method further includes:

[0243] The reader sends a preamble to the device, which is used for timed synchronization.

[0244] It should be noted that this embodiment is as a comparison with... Figure 5 The implementation method of the corresponding sending end in the illustrated embodiment can be found in the following examples. Figure 5 To avoid repetition, the relevant descriptions of the embodiments shown will not be repeated in this embodiment.

[0245] The following is an example illustrating the method provided in the embodiments of this application:

[0246] In one embodiment provided in the application, the device receives Y (Y>=1) R2D transmissions that schedule itself, and responds to X (1<=X<=Y) R2D transmissions. The Y R2D transmissions carry the same command or different commands and come from the same reader device or different readers. The Y R2D transmissions can be frequency-division multiplexed or time-division multiplexed.

[0247] In some implementations, if time division multiplexing is used, the Y R2D transmissions are received within a first time window, an R2D transmission reception time, an R2D time division multiplexing, or a first period.

[0248] The aforementioned first time window, R2D transmission and reception time, R2D duration, or first period can be periodic or aperiodic, and the duration or length of time can be the same or different.

[0249] In some implementations, multiple readers or multiple R2D transmissions from a single reader are allowed to be sent within a first time window, an R2D transmission reception time, an R2D duration, or a first period.

[0250] Or, in other words, the reader / writer is not allowed to send R2D transmissions outside the first time window, the R2D transmission reception time, the R2D duration, or the first cycle; or in other words

[0251] The device is not required to receive its own R2D transmission outside the first time window, R2D transmission reception time, R2D duration, or first cycle.

[0252] In some implementations, when using frequency division multiplexing, it is not limited that Y R2D transmissions are on the same frequency point; that is, the frequency points of the Y R2D transmissions can be the same or different. When the reception time of the Y R2D transmissions is the same or partially overlaps, and the frequency domain resources are different and there is no overlap, then these Y R2D transmissions are frequency division multiplexing.

[0253] In some implementations, the information carried by the R2D transmission and its source satisfy one of the following:

[0254] Y R2D transmissions carry different information and originate from the same reader / writer;

[0255] Y R2D transmissions carry the same information but come from different readers / writers;

[0256] The Y R2D transmissions carry different information and come from different readers / writers.

[0257] In some implementations, the device determines its response to an R2D transmission based on at least one of the following (including scenarios of responding to only one R2D transmission and responding to at least two R2D transmissions):

[0258] Method 1) Based on the command type, such as inventory, write, read, it can be done as follows:

[0259] The device receives an inventory command from reader #1 and a write command from reader #2. Based on command priority: the device responds only to the inventory command (inventory priority is higher than write command), or conversely, it responds only to the write command (write command priority is higher than inventory command); or...

[0260] Based on reader priority: the device responds to the inventory command from reader #1 first, then the write command from reader #2; commands from readers with smaller redear IDs have higher priority than those from readers with larger redear IDs; or vice versa, the device responds to the write command from reader #2 first, then the inventory command from reader #1; or...

[0261] The device receives an inventory command and a write command from reader #1. The device responds only to the inventory command, or conversely, only to the write command; or...

[0262] The device responds to the inventory command first, then the write command; or vice versa, responding to the write command first, then the inventory command; or...

[0263] The device receives write commands from reader #1 and reader #2. The device responds only to the write command from reader #1, or conversely, only to the write command from reader #2; or...

[0264] The device responds to the write command of reader #1 first, and then responds to the write command of reader #2; or vice versa, it responds to the write command of reader #2 first, and then responds to the write command of reader #1.

[0265] In some implementations, the priority order includes at least one of the following:

[0266] Reader ID > Command Type; or Command Type > Reader ID; or,

[0267] Reader ID > Command Type > Order of Command Received Time; or Reader ID > Order of Command Received Time > Command Type; or Command Type > Order of Command Received Time > Reader ID; or Command Type > Reader ID > Order of Command Received Time; or Order of Command Received Time > Reader ID > Command Type; or Order of Command Received Time > Command Type > Reader ID; or,

[0268] Reader ID > Command Type > Frequency Domain Resource Order of Received Command; or Reader ID > Frequency Domain Resource Order of Received Command > Command Type; or Command Type > Frequency Domain Resource Order of Received Command > Reader ID; or Command Type > Reader ID > Frequency Domain Resource Order of Received Command; or Frequency Domain Resource Order of Received Command > Reader ID > Command Type; or Frequency Domain Resource Order of Received Command > Command Type > Reader ID; or,

[0269] Reader ID > Command Type > Order of Received Command Time > Order of Received Command Frequency Domain Resources; or Reader ID > Command Type > Order of Received Command Frequency Domain Resources > Order of Received Command Time; or Reader ID > Order of Received Command Frequency Domain Resources > Command Type > Order of Received Command Time; or Reader ID > Order of Received Command Frequency Domain Resources > Order of Received Command Time > Command Type; or Reader ID > Order of Received Command Frequency Domain Resources > Order of Received Command Time > Command Type; or,

[0270] Command type > Reader ID > Order of command received > Order of frequency domain resources received > Order of frequency domain resources received > Order of command received; or Command type > Reader ID > Order of frequency domain resources received > Order of command received; or Command type > Order of time of command received > Reader ID > Order of frequency domain resources received > Order of frequency domain resources received > Reader ID; or Command type > Order of frequency domain resources received > Reader ID > Order of time of command received; or Command type > Order of frequency domain resources received > Order of time of command received > Reader ID; or,

[0271] The order of command received > reader ID > command type > frequency domain resource order of command received; or the order of command received > reader ID > frequency domain resource order of command received > command type; or the order of command received > command type > reader ID > frequency domain resource order of command received; or the order of command received > command type > frequency domain resource order of command received > reader ID; or the order of command received > frequency domain resource order of command received > reader ID > command type; or the order of command received > frequency domain resource order of command received > command type > reader ID; or,

[0272] The order of received commands is: frequency domain resource order > reader ID > command type > time order of command receipt; or frequency domain resource order > reader ID > time order of command receipt > command type; or frequency domain resource order > command type > reader ID > time order of command receipt; or frequency domain resource order > command type > time order of command receipt > reader ID; or frequency domain resource order > time order of command receipt > reader ID > command type; or frequency domain resource order > time order of command receipt > command type > reader ID.

[0273] In some implementations, the definition of priority includes at least one of the following:

[0274] The reader ID with a smaller ID has higher priority than the reader ID with a larger ID, or vice versa. The reader ID can also be interpreted as the reader type. For example, the reader that is a gNB has higher priority than the reader that is a UE. Alternatively, the reader ID assigned to the gNB reader is lower than the ID of the UE reader, ensuring that the gNB as reader has higher priority than the UE reader.

[0275] Device-specific commands > commands for a group of devices > broadcast commands, or vice versa;

[0276] Inventory commands > command commands, or vice versa; commands with high power consumption > commands with low power consumption, or vice versa.

[0277] Time order: earlier time > later time, or vice versa;

[0278] Frequency domain resource order: lower frequency > higher frequency, or vice versa; or, larger bandwidth > smaller bandwidth, or vice versa.

[0279] Method 2) Based on the instructions of the network-side device, the network-side device directly instructs the device to respond to R2D transmission.

[0280] Method 3) Based on the order of received R2D transmissions, such as the device only responding to the first received R2D transmission.

[0281] Or respond only to the first X received R2D transmissions.

[0282] Method 4) Based on the signal quality carried by the R2D transmission, if the device only responds to the strongest signal among Y R2D transmissions, the strongest signal includes at least one of the monitored SINR, SNR, RSRP, RSRQ, or RSSI being the highest; or

[0283] The device only responds to the strongest of the first N (N<=Y) signals out of Y R2D transmissions, that is, a certain margin is taken into account;

[0284] Alternatively, randomly select one of the N signals to transmit an R2D reply.

[0285] Method 5) Depending on the reader type, for example, if the device receives R2D transmissions from the BS and the terminal, the device only responds to the R2D transmissions from the BS.

[0286] Method 6) Based on the transmission information of R2D transmission, such as R2D transmission that only responds to specific signals, wherein the transmission information includes at least one of the following:

[0287] Carrier frequency / center frequency;

[0288] bandwidth;

[0289] Encoding method;

[0290] Does CRC exist? Does FEC exist?

[0291] Does it need to be transmitted repeatedly?

[0292] The number of repetitions;

[0293] The number of chips within a single symbol;

[0294] Should a preamble be used?

[0295] The type of preamble.

[0296] Method 7) Based on the capabilities or type of the equipment, for example:

[0297] Some devices have high capabilities and can respond to multiple requests, while others have low capabilities and can only respond to one request. For example, device type 1 devices can only respond to one request, while device type 2 (active device) devices can respond to multiple requests.

[0298] If the number of commands N that can be responded to based on the order of response priority is still greater than the device's capacity Y, then the device will randomly select Y commands from the remaining N candidate commands based on its capacity.

[0299] In some implementations, where the device responds to at least two R2D transmissions, the at least two R2D transmissions satisfy at least one of the following:

[0300] The time-domain sequence of responses includes time-domain interleaved responses, where the transmission of at least two R2D transmissions scheduled or triggered D2R transmissions is time-division multiplexed;

[0301] The center frequency of R2D transmission and the center frequency, carrier frequency (for device 2b), backscatter frequency (for device 1 or device 2a), or minimum frequency offset of D2R transmission may be the same or different.

[0302] In some implementations, when the device receives Y R2D transmissions and responds to X R2D transmissions, at least one of the following conditions is met:

[0303] The device either ignores or does not store the YX unresponsive R2D transmissions; or,

[0304] The device stores YX unresponsive R2D transmissions.

[0305] In some implementations, if the device fails to complete all or part of the X R2D transmission responses within the second time window, the D2R transmission period, or the second cycle, the device randomly selects all or part of the R2D transmissions from the stored R2D transmissions and responds to them.

[0306] In some implementations, the second time window, the D2R transmission period, or the second period can be periodic or aperiodic, and the duration or length of duration can be the same or different.

[0307] In some implementations, the behavior of the device prior to receiving the first R2D transmission includes:

[0308] The device can receive or not receive preambles carried in on-demand or periodic R2D transmissions. If the preamble is received, the device performs synchronization timing based on the preamble.

[0309] In another embodiment provided in this application, the device responds to X R2D transmissions, where X>=2.

[0310] In this embodiment, the command (cmd) is sent via R2D transmission, and the response (reply) is the response to the R2D transmission, sent via D2R transmission.

[0311] The device is limited by the fact that it does not support more than two D2R Tx / sends and the communication method is half-duplex communication.

[0312] The device receives multiple cmds, including:

[0313] Same time, different frequency domain; or

[0314] Different times, same frequency domain; or

[0315] Different times, different frequency domains.

[0316] The device sends multiple replies, including:

[0317] Same time, different frequency domain; or

[0318] Different times, same frequency domain; or

[0319] Different times, different frequency domains.

[0320] By combining cmd and reply, the following patterns are supported for responding to multiple parallel inventory counts or commands:

[0321] 1) When cmd#1 and cmd#2 (representing two R2D transmissions respectively) are at different frequencies,

[0322] Scenario 1: Reply#1 and Reply#2 (representing two D2R transmissions respectively) are on different frequencies and at different times.

[0323] There are replies between Cmd, such as Figure 7 As shown:

[0324] Receive cmd#1: The device receives cmd#1 at frequency F2 during time T1.

[0325] Response cmd#1: The device responds to reply#1 at time T2 and frequency F2 or F1.

[0326] Receive cmd#2: The device receives cmd#2 at frequency F1 at time T3.

[0327] Response cmd#2: The device responds to reply#2 at time T4 and frequency point F1 or F2.

[0328] There is no reply between Cmd commands, such as Figure 9 As shown:

[0329] Receive cmd#1: The device receives cmd#1 at frequency F2 during time T1.

[0330] Receive cmd#2: The device receives cmd#2 at frequency F1 at time T2.

[0331] Response cmd#1: The device responds to reply#1 at time T3 frequency point F2 or F1.

[0332] Response cmd#2: The device responds to reply#2 at time T4 and frequency point F1 or F2.

[0333] Scenario 2: reply#1 and reply#2 are on the same frequency but not at the same time (cmd is the same as in Scenario 1):

[0334] There are replies between Cmd, such as Figure 10 As shown:

[0335] Reply #1 is responded to in T2, and F2 responds in T4; or,

[0336] Reply #1 is responded to in T2, and reply #2 is responded to in T4, and reply #2 is responded to in T1.

[0337] There is no reply between Cmd commands, such as Figure 10 As shown:

[0338] Reply #1 is responded to in T3, and F1 responds in T4; or,

[0339] Reply #1 is executed in T3, and F2 responds; reply #2 is executed in T4, and F2 responds.

[0340] against Figure 10 In the third and fourth methods shown, with cmd#1 and cmd#2 remaining unchanged, reply#1 can follow reply#2, i.e.

[0341] reply#1 is responded to in T4, F1 responds; reply#2 is responded to in T3, F1 responds; or,

[0342] reply#1 is responded to in T4, and F2 responds; reply#2 is responded to in T3, and F2 responds.

[0343] 2) Cmd#1 and cmd#2 are at the same frequency but not at the same time

[0344] Scenario 3: Reply #1 and Reply #2 have different frequencies and times.

[0345] There are replies between Cmd. Figure 11 As shown:

[0346] Reply #1 is responded to in T2, and F2 responds in T4; or,

[0347] Reply #1 is responded to in T2, and F1 responds; reply #2 is responded to in T4, and F2 responds.

[0348] There is no reply between Cmd commands. Figure 11 As shown:

[0349] Reply #1 is responded to in T3, and F1 responds; reply #2 is responded to in T4, and F2 responds; or...

[0350] reply#1 is responded to in T3, and F2 responds; reply#2 is responded to in T4, and F1 responds.

[0351] against Figure 11 In the third and fourth methods shown, with cmd#1 and cmd#2 remaining unchanged, reply#1 can follow reply#2, that is:

[0352] reply#1 is responded to in T4, F1 responds; reply#2 is responded to in T3, F2 responds; or,

[0353] reply#1 is responded to in T4, and F2 responds; reply#2 is responded to in T3, and F1 responds.

[0354] Scenario 4: Reply #1 and Reply #2 are on the same frequency but not at the same time

[0355] There are replies between Cmd. Figure 12 As shown:

[0356] reply#1 is responded to in T2, F2 responds; reply#2 is responded to in T4, F2 responds; or,

[0357] Reply #1 is responded to in T2, and reply #2 is responded to in T4, and reply #2 is responded to in T1.

[0358] There is no reply between Cmd commands. Figure 12 As shown:

[0359] reply#1 in T3, F1 responds; reply#2 in T4, F1 responds; or,

[0360] reply#1 is responded to in T3, and F2 responds; reply#2 is responded to in T4, and F2 responds.

[0361] against Figure 12 In the third and fourth methods shown, with cmd#1 and cmd#2 remaining unchanged, reply#1 can follow reply#2, that is:

[0362] reply#1 is responded to in T4, F1 responds; reply#2 is responded to in T3, F1 responds; or,

[0363] reply#1 is responded to in T4, and F2 responds; reply#2 is responded to in T3, and F2 responds.

[0364] 3) When Cmd#1 and cmd#2 have different frequencies, such as Figure 13 As shown:

[0365] reply#1 and reply#2 are not at the same frequency or at the same time; or,

[0366] reply#1 and reply#2 are on the same frequency but not at the same time.

[0367] In another embodiment provided in this application, after receiving Y (Y>=1) R2D transmissions, the device determines to respond to only X (1<=X<=Y) of them according to the following method.

[0368] In this embodiment, "simultaneously" includes concepts such as a first time window, a first R2D transmission and reception time, or a first period, or partial overlap of multiple R2D transmission times.

[0369] The R2D transmission pattern is the same as in the previous embodiment, and the device determines the first R2D transmission response based on at least one of the following:

[0370] Method 1) Based on the command type, such as inventory, write, read, it can include:

[0371] The device receives an inventory command from reader #1 and a write command from reader #2. Based on command priority: the device responds only to the inventory command (which has higher priority than the write command), or vice versa, it only responds to the write command (i.e., the write command has higher priority than the inventory command); or...

[0372] Based on reader priority: the device responds first to the inventory command from reader #1, then to the write command from reader #2; commands from readers with smaller identifiers have higher priority than those from readers with larger identifiers; or vice versa, the device responds first to the write command from reader #2, then to the inventory command from reader #1; or...

[0373] The device receives an inventory command and a write command from reader #1. The device responds only to the inventory command, or conversely, only to the write command; or...

[0374] The device responds to the inventory command first, then the write command; or vice versa, responding to the write command first, then the inventory command; or...

[0375] The device receives write commands from reader #1 and reader #2. The device responds only to the write command from reader #1, or conversely, only to the write command from reader #2; or...

[0376] The device responds to the write command of reader #1 first, and then responds to the write command of reader #2; or vice versa, it responds to the write command of reader #2 first, and then responds to the write command of reader #1.

[0377] In some implementations, the order of priority includes at least one of the following:

[0378] Reader ID > Command Type; or Command Type > Reader ID;

[0379] Alternatively, the order of read / write ID > command type > order of command received time; or read / write ID > order of command received time > command type; or command type > order of command received time > read / write ID; or command type > read / write ID > order of command received time; or order of command received time > read / write ID > command type; or order of command received time > command type > read / write ID;

[0380] Reader ID > Command Type > Frequency Domain Resource Order of Received Command; or Reader ID > Frequency Domain Resource Order of Received Command > Command Type; or Command Type > Frequency Domain Resource Order of Received Command > Reader ID; or Command Type > Reader ID > Frequency Domain Resource Order of Received Command; or Frequency Domain Resource Order of Received Command > Reader ID > Command Type; or Frequency Domain Resource Order of Received Command > Command Type > Reader ID;

[0381] Reader ID > Command Type > Order of Received Command Time > Order of Received Command Frequency Domain Resources; or Reader ID > Command Type > Order of Received Command Frequency Domain Resources > Order of Received Command Time; or Reader ID > Order of Received Command Frequency Domain Resources > Command Type > Order of Received Command Time; or Reader ID > Order of Received Command Frequency Domain Resources > Order of Received Command Time > Command Type; or Reader ID > Order of Received Command Frequency Domain Resources > Order of Received Command Time > Command Type;

[0382] Command type > Reader ID > Order of time of command receipt > Order of frequency domain resources of command receipt; or Command type > Reader ID > Order of frequency domain resources of command receipt > Order of time of command receipt; or Command type > Order of time of command receipt > Reader ID > Order of frequency domain resources of command receipt; or Command type > Order of time of command receipt > Order of frequency domain resources of command receipt > Reader ID; or Command type > Order of frequency domain resources of command receipt > Reader ID > Order of time of command receipt; or Command type > Order of frequency domain resources of command receipt > Order of time of command receipt > Reader ID;

[0383] The order of command received is: time sequence > reader ID > command type > frequency domain resource order of command received; or the order of command received is: time sequence > reader ID > frequency domain resource order of command received > command type; or the order of command received is: time sequence > command type > reader ID > frequency domain resource order of command received; or the order of command received is: time sequence > command type > frequency domain resource order of command received > reader ID; or the order of command received is: time sequence > frequency domain resource order of command received > reader ID > command type; or the order of command received is: time sequence > frequency domain resource order of command received > command type > reader ID.

[0384] The order of received commands is: frequency domain resource order > reader ID > command type > time order of command receipt; or frequency domain resource order > reader ID > time order of command receipt > command type; or frequency domain resource order > command type > reader ID > time order of command receipt; or frequency domain resource order > command type > time order of command receipt > reader ID; or frequency domain resource order > time order of command receipt > reader ID > command type; or frequency domain resource order > time order of command receipt > command type > reader ID.

[0385] In some implementations, the definition of priority includes at least one of the following:

[0386] The reader ID with a smaller value has higher priority than the reader ID with a larger value, or vice versa. The reader ID can also be interpreted as the reader type. For example, a reader that is a gNB has higher priority than a reader that is a UE. Alternatively, the reader ID assigned to a gNB reader may be lower than the ID of a UE reader, ensuring that the gNB reader has higher priority than the UE reader.

[0387] Device-specific commands > commands for a group of devices > broadcast commands, or vice versa;

[0388] Inventory commands > Write commands, or vice versa; Power-consuming commands > Power-consuming commands, or vice versa.

[0389] Time order: earlier time > later time, or vice versa;

[0390] Frequency domain resource order: lower frequency > higher frequency, or vice versa; or, larger bandwidth > smaller bandwidth, or vice versa.

[0391] Method 2) Based on the network-side device's instruction, the network-side device directly instructs the device to respond to the first R2D transmission. For example, in one embodiment, the UE acts as a reader / writer, and UE#1, UE#2, and UE#3 send R2D transmissions. The device only responds to the R2D transmission of UE#1 according to the network instruction; or, UE#1 has the highest priority, and when the device receives R2D transmissions from UE#1 and other UEs, it only responds to the R2D transmission of UE#1.

[0392] Method 3) Based on the order of received R2D transmissions, for example, if the device receives R2D transmissions sent by UE#1, UE#2, and UE#3 in sequence during the R2D transmission reception period, the device will only respond to the first received R2D transmission (i.e., only respond to UE#1), or only respond to the first X=2 received R2D transmissions (i.e., only respond to UE#1 and UE#2).

[0393] Method 4) Based on the signal quality carried by the R2D transmission, the device may respond only to the strongest signal among Y R2D transmissions, where the strongest signal includes at least one of the monitored SINR, SNR, RSRP, RSRQ, or RSSI being the highest; or the device may respond only to the first N (N<=Y) strongest signals among Y R2D transmissions (i.e., considering a certain margin); or, randomly select one R2D transmission from the N signals to reply.

[0394] For example, the device receives R2D transmissions from UE#1, UE#2, and UE#3, where the SINR of the R2D transmission for UE#1 is 10dB, the SINR of the R2D transmission for UE#2 is 0dB, and the SINR of the R2D transmission for UE#3 is 8dB.

[0395] In some implementations, the device only responds to the R2D transmission with the highest SINR, i.e., only responds to UE#1;

[0396] In some implementations, the device only responds to the first N=2 R2D transmissions with the highest SINR, i.e., UE#1 and UE#3. Alternatively, it may randomly select one R2D transmission from UE#1 and UE#3 to respond to.

[0397] Method 5) Depending on the reader type, for example, if the device receives R2D transmissions from both the BS (base station) and the UE, the device only responds to the BS's R2D transmissions.

[0398] Method 6) Based on the transmission information of R2D transmission, such as R2D transmission that only responds to specific signals, the transmission information includes at least one of the following:

[0399] Carrier frequency or center frequency;

[0400] bandwidth;

[0401] Encoding methods, such as Manchester encoding and PIE encoding;

[0402] Does a CRC exist?

[0403] Does FEC exist?

[0404] Does it need to be transmitted repeatedly?

[0405] The number of repetitions;

[0406] The number of chips within a single symbol;

[0407] Should we use Preamble?

[0408] Types of Preamble.

[0409] For example, if the device receives R2D transmissions from UE#1, UE#2, and UE#3, where the center frequency of the R2D transmissions of UE#1 and UE#3 is 900MHz and the center frequency of the R2D transmissions of UE#2 is 860MHz, then the device will only respond to the R2D transmissions with a center frequency of 900MHz, i.e., respond to UE#1 and UE#3, or conversely, it will only respond to the R2D transmissions with a center frequency of 860MHz, i.e., respond to UE#2.

[0410] Other transmitted information is analogous to the center frequency point, and will not be elaborated here.

[0411] Method 7) Based on the capabilities / type of the equipment, for example:

[0412] Some devices have high capabilities and can respond to multiple requests, while others have low capabilities and can only respond to one; for example, device type 1 devices can only respond to one request, while device type 2 devices can respond to multiple requests; or

[0413] If the number of commands N that can be responded to based on response priority is still greater than the device's capacity Y, then the device will randomly select Y commands from the remaining N candidates based on its capacity.

[0414] In one embodiment provided in this application, such as Figure 6 As shown, R2D duration#1 and R2D duration#2 refer to the first time in the above embodiment, during which the device receives at least Y (Y>=1) R2D transmissions. D2R duration#1 and D2R duration#2 refer to the second time window, D2R reception time, D2R duration, or second period involved in the above embodiment, during which the device responds to at least X (1<=X<=Y) R2D transmissions, or sends X D2Rs.

[0415] Before R2D transmission, the device can receive or not receive the on-demand or periodic R2D transmission preamble. The device synchronizes timing based on the on-demand or periodic R2D transmission preamble. That is, before R2D transmission, the device can send the preamble on demand for synchronization timing, or send the preamble periodically for synchronization timing, or not send it.

[0416] The first time window, R2D transmission and reception time, R2D transmission duration, or first period can be periodic or aperiodic, and the duration or length of duration can be the same or different; and / or, the second time window, D2R reception time, D2R duration, or / the second period can be periodic or aperiodic, and the duration or length of duration can be the same or different.

[0417] In conjunction with the previous embodiment, Figure 6 The first method applies to the previous embodiment one. Figure 9 That is, within one operation cycle, the device receives Y R2D transmissions and then sends D2R, thus completing one operation cycle and starting the next operation cycle.

[0418] Figure 6 The second approach applies to the first embodiment. Figure 7 or Figure 9 That is, within one operation cycle, there is a D2R response between different R2D transmissions.

[0419] Figure 6 The operation period can be periodic or aperiodic, and the duration or length of time can be the same or different.

[0420] In another embodiment provided in this application, when the device receives Y R2D transmissions and responds to X R2D transmissions, the device satisfies at least one of the following:

[0421] The device directly ignores or does not store the YX unresponsive R2D transmissions;

[0422] Alternatively, the device stores YX unresponsive R2D transmissions.

[0423] In some implementations, if the device fails to complete all or part of X R2D transmission responses within the second time window, the D2R reception time, the D2R transmission time period, or the second cycle, the device randomly selects all or part of the stored R2D transmissions and responds accordingly.

[0424] Furthermore, the aforementioned second time window, D2R reception time, D2R duration, or second period can be periodic or aperiodic, and the duration or length of time can be the same or different.

[0425] The following examples use Y=2 and X=1 as an example:

[0426] like Figure 14 As shown, the device receives R2D transmissions during the R2D duration. Upon receiving reader #1, it immediately stops receiving other R2D transmissions. Therefore, the device directly discards, ignores, or refuses to receive the R2D transmission from reader #2, and responds to reader #1 during the subsequent D2R duration. Only after communication with reader #1 is completed will it begin to respond to or receive new R2D transmissions. The new R2D transmission can be from reader #1 or reader #2.

[0427] like Figure 15 As shown, during the R2D duration, the device receives R2D transmissions from both reader #1 and reader #2, but only responds to the R2D transmission from reader #1, temporarily storing the R2D transmission from reader #2 in memory. During the D2Rduration, it prioritizes responding to reader #1.

[0428] If the device successfully responds to reader #1, it continues reading memory to respond to reader #2 (as shown in Figure 15.1), or responds to reader #2 during the next D2R duration (as shown in Figure 15.2), or does not respond to reader #2 (as shown in Figure 15.3); or

[0429] If the device fails to respond to reader #1, or if communication with reader #1 fails, the device reads the R2D transmission from reader #2 in memory and begins responding to the R2D transmission from reader #2 (as shown in Figure 15.4).

[0430] This application provides a method for a device to respond after receiving multiple R2D transmissions, which balances low complexity of device response and priority response to high-priority R2D transmissions, while ensuring the flexibility of the reader in sending commands.

[0431] It supports parallel operations of multiple inventory points or commands, improving equipment operation efficiency and reducing latency.

[0432] The response method provided in this application can be executed by a response device. This application uses the execution of the response method by a response device as an example to illustrate the response device provided in this application.

[0433] This application provides a response device. As an example, the response 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.

[0434] The response 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.

[0435] For details, see Figure 16 When the response device is a device or a component of a device, the response device 1600 includes:

[0436] Receiver module 1601 is used to receive R2D transmissions from Y readers to the device, where Y is a positive integer;

[0437] Processing module 1602 is used to respond to X R2D transmissions out of Y R2D transmissions, where X is a positive integer less than or equal to Y.

[0438] Optionally, the X R2D transmissions are determined based on the first information;

[0439] The first information includes at least one of the following:

[0440] The types of R2D transmissions, reader information for R2D transmissions, instructions sent by network-side devices, reception time order of R2D transmissions, frequency domain resource order of R2D transmissions, signal quality of R2D transmissions, transmission information of R2D transmissions, and capability information of the devices.

[0441] Optionally, the type of R2D transmission includes at least one of the following:

[0442] Inventory, writing, reading, and R2D transfers used to trigger random access.

[0443] Optionally, the reader information includes at least one of the following:

[0444] The identifier of the reader / writer and the type of the reader / writer.

[0445] Optionally, the transmission information includes at least one of the following:

[0446] Carrier frequency, bandwidth, encoding method, presence of Cyclic Redundancy Check (CRC), presence of Forward Error Correction (FEC), whether repeated transmission is performed, number of repeated transmissions, number of chips in a single symbol, whether a preamble is used, and type of preamble.

[0447] Optionally, the X R2D transmissions are determined based on the priority corresponding to the first information.

[0448] Optionally, the priority includes at least one of the following:

[0449] The first priority of the type of R2D transmission;

[0450] The second priority of the reader / writer for R2D transmission;

[0451] The third priority of the receiving time order in R2D transmission;

[0452] The fourth priority in the frequency domain resource ordering for R2D transmission;

[0453] The fifth priority for signal quality in R2D transmission;

[0454] The sixth priority for R2D transmission information.

[0455] Optionally, when the priority corresponding to the first information includes multiple priorities such as the first priority, the second priority, the third priority, the fourth priority, the fifth priority, and the sixth priority, there is a preset order of use among the multiple priorities.

[0456] Optionally, the Y R2D transmissions include:

[0457] Y time-division multiplexed R2D transmissions within a first time period, wherein the first time period includes a first time window, a first R2D reception time, a first R2D duration, or a first period; or

[0458] Frequency division multiplexing of Y R2D transmissions.

[0459] Optionally, during the first time period, one or more readers send R2D transmissions to the device; or

[0460] The device does not expect any reader to send R2D transmissions to it outside the first time period, wherein the device either does not receive R2D transmissions outside the first time period or does not respond to R2D transmissions received outside the first time period; or

[0461] The device is required to receive R2D transmissions within the first time period.

[0462] Optionally, when X is greater than 1, the responses of the X R2D transmissions employ at least one of time-division multiplexing and frequency-division multiplexing.

[0463] Alternatively, if X is less than Y:

[0464] The device ignores or does not store YX R2D transmissions; or

[0465] The device stores YX R2D transmissions, and responds to all or part of the stored YX R2D transmissions in a subsequent response.

[0466] Wherein, the YX R2D transmissions are the R2D transmissions other than the X R2D transmissions among the Y R2D transmissions.

[0467] Optionally, if the device stores YX R2D transmissions, the processing module 1602 is further configured to determine at least one R2D transmission among the stored YX R2D transmissions for response;

[0468] Optionally, the timing relationship between the X device-to-reader D2R transmissions responding to the X R2D transmissions and the X R2D transmissions includes:

[0469] The X D2R transmissions are located after the X R2D transmissions; or

[0470] The first D2R transmission in the X D2R transmissions is located after the first R2D transmission in the X R2D transmissions. If there is a second R2D transmission in the X R2D transmissions, the first D2R transmission is located before the second R2D transmission, and the first D2R transmission is a response to the first R2D transmission.

[0471] Optionally, the frequency domain relationship between the X D2R transmissions responding to the X R2D transmissions and the X R2D transmissions includes:

[0472] The frequency domain resources of the X D2R transmissions are the same as the frequency domain resources of the X R2D transmissions; or,

[0473] The X transmission pairs include the first transmission pair and the second transmission pair; or

[0474] Each of the X transmission pairs is the first transmission pair; or

[0475] Each of the X transmission pairs is a second transmission pair;

[0476] The transmission pair includes R2D transmission and D2R transmission responding to the R2D transmission. The frequency domain resources of the R2D transmission and the D2R transmission included in the first transmission pair are the same, while the frequency domain resources of the R2D transmission and the D2R transmission included in the first transmission pair are different.

[0477] Optionally, the receiving module 1601 is also used for the device to receive a preamble;

[0478] Processing module 1602 is also used for timed synchronization based on the preamble.

[0479] The aforementioned response device can improve the communication performance of the device.

[0480] The response device provided in this application embodiment can achieve... Figure 5 The various processes implemented in the method embodiments shown achieve the same technical effects, and will not be described again here to avoid repetition.

[0481] For details, see Figure 17 When the response device is a reader or a component within a reader, the response device 1700 includes:

[0482] The sending module 1701 is used to send Y readers to the device for R2D transmission, where Y is a positive integer.

[0483] The receiving module 1702 is used to receive responses to X R2D transmissions, wherein the X R2D transmissions are X R2D transmissions out of the Y R2D transmissions, and X is a positive integer less than or equal to Y.

[0484] It should be noted that this embodiment mainly describes the case where Y R2D transmissions are sent by one reader / writer, while in the embodiments of this application, Y R2D transmissions can be sent by one or more readers / writers to the same device.

[0485] Optionally, the X R2D transmissions are determined based on the first information;

[0486] The first information includes at least one of the following:

[0487] The types of R2D transmissions, reader information for R2D transmissions, instructions sent by network-side devices, reception time order of R2D transmissions, frequency domain resource order of R2D transmissions, signal quality of R2D transmissions, transmission information of R2D transmissions, and capability information of the devices.

[0488] Optionally, the type of R2D transmission includes at least one of the following:

[0489] Inventory, writing, reading, and R2D transfers used to trigger random access.

[0490] Optionally, the reader information includes at least one of the following:

[0491] The identifier of the reader / writer and the type of the reader / writer.

[0492] Optionally, the transmission information includes at least one of the following:

[0493] Carrier frequency, bandwidth, encoding method, presence of Cyclic Redundancy Check (CRC), presence of Forward Error Correction (FEC), whether repeated transmission is performed, number of repeated transmissions, number of chips in a single symbol, whether a preamble is used, and type of preamble.

[0494] Optionally, the X R2D transmissions are determined based on the priority corresponding to the first information.

[0495] Optionally, the priority includes at least one of the following:

[0496] The first priority of the type of R2D transmission;

[0497] The second priority of the reader / writer for R2D transmission;

[0498] The third priority of the receiving time order in R2D transmission;

[0499] The fourth priority in the frequency domain resource ordering for R2D transmission;

[0500] The fifth priority for signal quality in R2D transmission;

[0501] The sixth priority for R2D transmission information.

[0502] Optionally, when the priority corresponding to the first information includes multiple priorities such as the first priority, the second priority, the third priority, the fourth priority, the fifth priority, and the sixth priority, there is a preset order of use among the multiple priorities.

[0503] Optionally, the Y R2D transmissions include:

[0504] Y time-division multiplexed R2D transmissions within a first time period, wherein the first time period includes a first time window, a first R2D reception time, a first R2D duration, or a first period; or

[0505] Frequency division multiplexing of Y R2D transmissions.

[0506] Optionally, the reader sends an R2D transmission to the device during the first time period; or

[0507] The reader does not send R2D transmissions to the device outside of the first time period.

[0508] Optionally, when X is greater than 1, the responses of the X R2D transmissions employ at least one of time-division multiplexing and frequency-division multiplexing.

[0509] Optionally, the timing relationship between the X device-to-reader D2R transmissions responding to the X R2D transmissions and the X R2D transmissions includes:

[0510] The X D2R transmissions are located after the X R2D transmissions; or

[0511] The first D2R transmission in the X D2R transmissions is located after the first R2D transmission in the X R2D transmissions. If there is a second R2D transmission in the X R2D transmissions, the first D2R transmission is located before the second R2D transmission, and the first D2R transmission is a response to the first R2D transmission.

[0512] Optionally, the frequency domain relationship between the X D2R transmissions responding to the X R2D transmissions and the X R2D transmissions includes:

[0513] The frequency domain resources of the X D2R transmissions are the same as the frequency domain resources of the X R2D transmissions; or,

[0514] The X transmission pairs include the first transmission pair and the second transmission pair; or

[0515] Each of the X transmission pairs is the first transmission pair; or

[0516] Each of the X transmission pairs is a second transmission pair;

[0517] The transmission pair includes R2D transmission and D2R transmission responding to the R2D transmission. The frequency domain resources of the R2D transmission and the D2R transmission included in the first transmission pair are the same, while the frequency domain resources of the R2D transmission and the D2R transmission included in the first transmission pair are different.

[0518] Optionally, the sending module 1701 is further configured to send a preamble to the device, the preamble being used for timed synchronization.

[0519] The aforementioned response device can improve the communication performance of the device.

[0520] The response device provided in this application embodiment can achieve... Figure 8 The various processes implemented in the method embodiments shown achieve the same technical effects, and will not be described again here to avoid repetition.

[0521] like Figure 18 As shown, this application embodiment also provides a communication device 1800, including a processor 1801 and a memory 1802. The memory 1802 stores a program or instructions that can run on the processor 1801. For example, when the communication device 1800 is a device, when the program or instructions are executed by the processor 1801, they implement the various steps of the response method embodiment on the device side described above, and achieve the same technical effect. When the communication device 1800 is a reader / writer, when the program or instructions are executed by the processor 1801, they implement the various steps of the response method embodiment on the reader / writer side described above, and achieve the same technical effect. To avoid repetition, this will not be described again here.

[0522] This application embodiment 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, for example... Figure 5 or Figure 8 The steps in the method embodiment shown are illustrated. This terminal embodiment corresponds to the method embodiments on the device side or reader side described above. All implementation processes and methods of the above method embodiments can be applied to this terminal embodiment and achieve the same technical effect. The terminal can be... Figure 16 or Figure 17 The response device shown. Specifically, Figure 19 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0523] The terminal 1900 includes, but is not limited to, at least some of the following components: radio frequency unit 1901, network module 1902, audio output unit 1903, input unit 1904, sensor 1905, display unit 1906, user input unit 1907, interface unit 1908, memory 1909, and processor 1910.

[0524] Those skilled in the art will understand that the terminal 1900 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 1910 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 19 The terminal structure shown 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.

[0525] It should be understood that, in this embodiment, the input unit 1904 may include a graphics processor 19041 and a microphone 19042. The graphics processor 19041 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 1906 may include a display panel 19061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 1907 includes at least one of a touch panel 19071 and other input devices 19072. The touch panel 19071 is also called a touch screen. The touch panel 19071 may include a touch detection device and a touch controller. Other input devices 19072 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.

[0526] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 1901 can transmit it to the processor 1910 for processing; in addition, the radio frequency unit 1901 can send uplink data to the network-side device. Typically, the radio frequency unit 1901 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0527] The memory 1909 can be used to store software programs or instructions, as well as various data. The memory 1909 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 1909 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 1909 in the embodiments of this application includes, but is not limited to, these and any other suitable types of memory.

[0528] Processor 1910 may include one or more processing units; optionally, processor 1910 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 1910.

[0529] In the above embodiment where the terminal is a device:

[0530] Among them, the radio frequency unit 1901 is used to receive Y reader-to-device R2D transmissions, where Y is a positive integer;

[0531] Processor 1910 is used to respond to X R2D transmissions out of Y R2D transmissions, where X is a positive integer less than or equal to Y.

[0532] Optionally, the X R2D transmissions are determined based on the first information;

[0533] The first information includes at least one of the following:

[0534] The types of R2D transmissions, reader information for R2D transmissions, instructions sent by network-side devices, reception time order of R2D transmissions, frequency domain resource order of R2D transmissions, signal quality of R2D transmissions, transmission information of R2D transmissions, and capability information of the devices.

[0535] Optionally, the type of R2D transmission includes at least one of the following:

[0536] Inventory, writing, reading, and R2D transfers used to trigger random access.

[0537] Optionally, the reader information includes at least one of the following:

[0538] The identifier of the reader / writer and the type of the reader / writer.

[0539] Optionally, the transmission information includes at least one of the following:

[0540] Carrier frequency, bandwidth, encoding method, presence of Cyclic Redundancy Check (CRC), presence of Forward Error Correction (FEC), whether repeated transmission is performed, number of repeated transmissions, number of chips in a single symbol, whether a preamble is used, and type of preamble.

[0541] Optionally, the X R2D transmissions are determined based on the priority corresponding to the first information.

[0542] Optionally, the priority includes at least one of the following:

[0543] The first priority of the type of R2D transmission;

[0544] The second priority of the reader / writer for R2D transmission;

[0545] The third priority of the receiving time order in R2D transmission;

[0546] The fourth priority in the frequency domain resource ordering for R2D transmission;

[0547] The fifth priority for signal quality in R2D transmission;

[0548] The sixth priority for R2D transmission information.

[0549] Optionally, when the priority corresponding to the first information includes multiple priorities such as the first priority, the second priority, the third priority, the fourth priority, the fifth priority, and the sixth priority, there is a preset order of use among the multiple priorities.

[0550] Optionally, the Y R2D transmissions include:

[0551] Y time-division multiplexed R2D transmissions within a first time period, wherein the first time period includes a first time window, a first R2D reception time, a first R2D duration, or a first period; or

[0552] Frequency division multiplexing of Y R2D transmissions.

[0553] Optionally, during the first time period, one or more readers send R2D transmissions to the device; or

[0554] The device does not expect any reader to send R2D transmissions to it outside the first time period, wherein the device either does not receive R2D transmissions outside the first time period or does not respond to R2D transmissions received outside the first time period; or

[0555] The device is required to receive R2D transmissions within the first time period.

[0556] Optionally, when X is greater than 1, the responses of the X R2D transmissions employ at least one of time-division multiplexing and frequency-division multiplexing.

[0557] Optionally, when X is less than Y, the processor 1910 is further configured to:

[0558] Ignore or do not store YX R2D transfers; or

[0559] Store YX R2D transmissions, and respond to all or part of the stored YX R2D transmissions in a subsequent response;

[0560] Wherein, the YX R2D transmissions are the R2D transmissions other than the X R2D transmissions among the Y R2D transmissions.

[0561] Optionally, if the device stores YX R2D transmissions, the processor 1910 is further configured to determine at least one R2D transmission among the stored YX R2D transmissions to respond to;

[0562] Optionally, the timing relationship between the X device-to-reader D2R transmissions responding to the X R2D transmissions and the X R2D transmissions includes:

[0563] The X D2R transmissions are located after the X R2D transmissions; or

[0564] The first D2R transmission in the X D2R transmissions is located after the first R2D transmission in the X R2D transmissions. If there is a second R2D transmission in the X R2D transmissions, the first D2R transmission is located before the second R2D transmission, and the first D2R transmission is a response to the first R2D transmission.

[0565] Optionally, the frequency domain relationship between the X D2R transmissions responding to the X R2D transmissions and the X R2D transmissions includes:

[0566] The frequency domain resources of the X D2R transmissions are the same as the frequency domain resources of the X R2D transmissions; or,

[0567] The X transmission pairs include the first transmission pair and the second transmission pair; or

[0568] Each of the X transmission pairs is the first transmission pair; or

[0569] Each of the X transmission pairs is a second transmission pair;

[0570] The transmission pair includes R2D transmission and D2R transmission responding to the R2D transmission. The frequency domain resources of the R2D transmission and the D2R transmission included in the first transmission pair are the same, while the frequency domain resources of the R2D transmission and the D2R transmission included in the first transmission pair are different.

[0571] Optionally, the radio frequency unit 1901 is also used to receive a preamble;

[0572] Processor 1910 is also used for timing synchronization based on the preamble.

[0573] In the above embodiment where the terminal is a reader / writer:

[0574] The radio frequency unit 1901 is used to send Y reader / writer R2D transmissions to the device, where Y is a positive integer; and to receive responses to X R2D transmissions, where the X R2D transmissions are X R2D transmissions out of the Y R2D transmissions, where X is a positive integer less than or equal to Y.

[0575] Optionally, the X R2D transmissions are determined based on the first information;

[0576] The first information includes at least one of the following:

[0577] The types of R2D transmissions, reader information for R2D transmissions, instructions sent by network-side devices, reception time order of R2D transmissions, frequency domain resource order of R2D transmissions, signal quality of R2D transmissions, transmission information of R2D transmissions, and capability information of the devices.

[0578] Optionally, the type of R2D transmission includes at least one of the following:

[0579] Inventory, writing, reading, and R2D transfers used to trigger random access.

[0580] Optionally, the reader information includes at least one of the following:

[0581] The identifier of the reader / writer and the type of the reader / writer.

[0582] Optionally, the transmission information includes at least one of the following:

[0583] Carrier frequency, bandwidth, encoding method, presence of Cyclic Redundancy Check (CRC), presence of Forward Error Correction (FEC), whether repeated transmission is performed, number of repeated transmissions, number of chips in a single symbol, whether a preamble is used, and type of preamble.

[0584] Optionally, the X R2D transmissions are determined based on the priority corresponding to the first information.

[0585] Optionally, the priority includes at least one of the following:

[0586] The first priority of the type of R2D transmission;

[0587] The second priority of the reader / writer for R2D transmission;

[0588] The third priority of the receiving time order in R2D transmission;

[0589] The fourth priority in the frequency domain resource ordering for R2D transmission;

[0590] The fifth priority for signal quality in R2D transmission;

[0591] The sixth priority for R2D transmission information.

[0592] Optionally, when the priority corresponding to the first information includes multiple priorities such as the first priority, the second priority, the third priority, the fourth priority, the fifth priority, and the sixth priority, there is a preset order of use among the multiple priorities.

[0593] Optionally, the Y R2D transmissions include:

[0594] Y time-division multiplexed R2D transmissions within a first time period, wherein the first time period includes a first time window, a first R2D reception time, a first R2D duration, or a first period; or

[0595] Frequency division multiplexing of Y R2D transmissions.

[0596] Optionally, the reader sends an R2D transmission to the device during the first time period; or

[0597] The reader does not send R2D transmissions to the device outside of the first time period.

[0598] Optionally, when X is greater than 1, the responses of the X R2D transmissions employ at least one of time-division multiplexing and frequency-division multiplexing.

[0599] Optionally, the timing relationship between the X device-to-reader D2R transmissions responding to the X R2D transmissions and the X R2D transmissions includes:

[0600] The X D2R transmissions are located after the X R2D transmissions; or

[0601] The first D2R transmission in the X D2R transmissions is located after the first R2D transmission in the X R2D transmissions. If there is a second R2D transmission in the X R2D transmissions, the first D2R transmission is located before the second R2D transmission, and the first D2R transmission is a response to the first R2D transmission.

[0602] Optionally, the frequency domain relationship between the X D2R transmissions responding to the X R2D transmissions and the X R2D transmissions includes:

[0603] The frequency domain resources of the X D2R transmissions are the same as the frequency domain resources of the X R2D transmissions; or,

[0604] The X transmission pairs include the first transmission pair and the second transmission pair; or

[0605] Each of the X transmission pairs is the first transmission pair; or

[0606] Each of the X transmission pairs is a second transmission pair;

[0607] The transmission pair includes R2D transmission and D2R transmission responding to the R2D transmission. The frequency domain resources of the R2D transmission and the D2R transmission included in the first transmission pair are the same, while the frequency domain resources of the R2D transmission and the D2R transmission included in the first transmission pair are different.

[0608] Optionally, the radio frequency unit 1901 is also used to send a preamble to the device, the preamble being used for timing synchronization.

[0609] The aforementioned terminals can improve the communication performance of the device.

[0610] 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.

[0611] This application embodiment also provides a network-side device, 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, for example... Figure 8 The steps of the method embodiment shown are illustrated. This network-side device embodiment corresponds to the reader-side method embodiment described above. All implementation processes and methods of the above method embodiments can be applied to this network-side device embodiment and achieve the same technical effects.

[0612] Specifically, embodiments of this application also provide a network-side device, which can be... Figure 17 The response device is shown. For example... Figure 20 As shown, the network-side device 2000 includes: an antenna 2001, a radio frequency (RF) device 2002, a baseband device 2003, a processor 2004, and a memory 2005. The antenna 2001 is connected to the RF device 2002. In the uplink direction, the RF device 2002 receives information through the antenna 2001 and transmits the received information to the baseband device 2003 for processing. In the downlink direction, the baseband device 2003 processes the information to be transmitted and sends it to the RF device 2002. The RF device 2002 processes the received information and transmits it through the antenna 2001.

[0613] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 2003, which includes a baseband processor.

[0614] The baseband device 2003 may, for example, include at least one baseband board on which multiple chips are disposed, such as... Figure 20 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 2005 via a bus interface to call the program or instructions in the memory 2005 to execute the network-side device operation shown in the above method embodiment.

[0615] The network-side device may also include a network interface 2006, such as a Common Public Radio Interface (CPRI).

[0616] The radio frequency device 2002 is used to send Y reader-writer R2D transmissions to the device, where Y is a positive integer; and to receive responses to X R2D transmissions, where the X R2D transmissions are X R2D transmissions out of the Y R2D transmissions, where X is a positive integer less than or equal to Y.

[0617] Optionally, the X R2D transmissions are determined based on the first information;

[0618] The first information includes at least one of the following:

[0619] The types of R2D transmissions, reader information for R2D transmissions, instructions sent by network-side devices, reception time order of R2D transmissions, frequency domain resource order of R2D transmissions, signal quality of R2D transmissions, transmission information of R2D transmissions, and capability information of the devices.

[0620] Optionally, the type of R2D transmission includes at least one of the following:

[0621] Inventory, writing, reading, and R2D transfers used to trigger random access.

[0622] Optionally, the reader information includes at least one of the following:

[0623] The identifier of the reader / writer and the type of the reader / writer.

[0624] Optionally, the transmission information includes at least one of the following:

[0625] Carrier frequency, bandwidth, encoding method, presence of Cyclic Redundancy Check (CRC), presence of Forward Error Correction (FEC), whether repeated transmission is performed, number of repeated transmissions, number of chips in a single symbol, whether a preamble is used, and type of preamble.

[0626] Optionally, the X R2D transmissions are determined based on the priority corresponding to the first information.

[0627] Optionally, the priority includes at least one of the following:

[0628] The first priority of the type of R2D transmission;

[0629] The second priority of the reader / writer for R2D transmission;

[0630] The third priority of the receiving time order in R2D transmission;

[0631] The fourth priority in the frequency domain resource ordering for R2D transmission;

[0632] The fifth priority for signal quality in R2D transmission;

[0633] The sixth priority for R2D transmission information.

[0634] Optionally, when the priority corresponding to the first information includes multiple priorities such as the first priority, the second priority, the third priority, the fourth priority, the fifth priority, and the sixth priority, there is a preset order of use among the multiple priorities.

[0635] Optionally, the Y R2D transmissions include:

[0636] Y time-division multiplexed R2D transmissions within a first time period, wherein the first time period includes a first time window, a first R2D reception time, a first R2D duration, or a first period; or

[0637] Frequency division multiplexing of Y R2D transmissions.

[0638] Optionally, the reader sends an R2D transmission to the device during the first time period; or

[0639] The reader does not send R2D transmissions to the device outside of the first time period.

[0640] Optionally, when X is greater than 1, the responses of the X R2D transmissions employ at least one of time-division multiplexing and frequency-division multiplexing.

[0641] Optionally, the timing relationship between the X device-to-reader D2R transmissions responding to the X R2D transmissions and the X R2D transmissions includes:

[0642] The X D2R transmissions are located after the X R2D transmissions; or

[0643] The first D2R transmission in the X D2R transmissions is located after the first R2D transmission in the X R2D transmissions. If there is a second R2D transmission in the X R2D transmissions, the first D2R transmission is located before the second R2D transmission, and the first D2R transmission is a response to the first R2D transmission.

[0644] Optionally, the frequency domain relationship between the X D2R transmissions responding to the X R2D transmissions and the X R2D transmissions includes:

[0645] The frequency domain resources of the X D2R transmissions are the same as the frequency domain resources of the X R2D transmissions; or,

[0646] The X transmission pairs include the first transmission pair and the second transmission pair; or

[0647] Each of the X transmission pairs is the first transmission pair; or

[0648] Each of the X transmission pairs is a second transmission pair;

[0649] The transmission pair includes R2D transmission and D2R transmission responding to the R2D transmission. The frequency domain resources of the R2D transmission and the D2R transmission included in the first transmission pair are the same, while the frequency domain resources of the R2D transmission and the D2R transmission included in the first transmission pair are different.

[0650] Optionally, the radio frequency device 2002 is also used to send a preamble to the device for timing synchronization.

[0651] The aforementioned network-side equipment can improve the communication performance of the device.

[0652] Furthermore, the network-side device 2000 in this application embodiment also includes: a program or instructions stored in a memory 2005 and executable on a processor 2004, wherein the processor 2004 calls the program or instructions in the memory 2005 to execute. Figure 17 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0653] 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 response method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0654] 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.

[0655] 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 response method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0656] 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.

[0657] 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 response method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0658] 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 device-side method as described above, and the reader / writer can be used to perform the steps of the reader-side method as described above.

[0659] 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.

[0660] 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.

[0661] 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. A response method, characterized in that, include: The device receives R2D transmissions from Y readers, where Y is a positive integer. The device responds to X R2D transmissions out of Y R2D transmissions, where X is a positive integer less than or equal to Y.

2. The method according to claim 1, characterized in that, The X R2D transmissions are determined based on the first information; The first information includes at least one of the following: The types of R2D transmissions, reader information for R2D transmissions, instructions sent by network-side devices, reception time order of R2D transmissions, frequency domain resource order of R2D transmissions, signal quality of R2D transmissions, transmission information of R2D transmissions, and capability information of the devices.

3. The method according to claim 2, characterized in that the type of R2D transmission includes at least one of the following: Inventory, writing, reading, and R2D transfers used to trigger random access.

4. The method according to claim 2 or 3, characterized in that, The reader information includes at least one of the following: The identifier of the reader / writer and the type of the reader / writer.

5. The method according to any one of claims 2 to 4, characterized in that, The transmitted information includes at least one of the following: Carrier frequency, bandwidth, encoding method, presence of Cyclic Redundancy Check (CRC), presence of Forward Error Correction (FEC), whether repeated transmission is performed, number of repeated transmissions, number of chips in a single symbol, whether a preamble is used, and type of preamble.

6. The method according to any one of claims 2 to 5, characterized in that, The X R2D transmissions are determined based on the priority corresponding to the first information.

7. The method according to claim 6, characterized in that, The priority includes at least one of the following: The first priority of the type of R2D transmission; The second priority of the reader / writer for R2D transmission; The third priority of the receiving time order in R2D transmission; The fourth priority in the frequency domain resource ordering for R2D transmission; The fifth priority for signal quality in R2D transmission; The sixth priority for R2D transmission information.

8. The method according to claim 7, characterized in that, When the priority corresponding to the first information includes multiple priorities such as the first priority, the second priority, the third priority, the fourth priority, the fifth priority, and the sixth priority, there is a preset order of use among the multiple priorities.

9. The method according to any one of claims 1 to 8, characterized in that, The Y R2D transmissions include: Y time-division multiplexed R2D transmissions within a first time period, wherein the first time period includes a first time window, a first R2D reception time, a first R2D duration, or a first period; or Frequency division multiplexing of Y R2D transmissions.

10. The method according to claim 9, characterized in that, During the first time period, one or more readers send R2D transmissions to the device; or The device does not expect any reader to send R2D transmissions to it outside the first time period, wherein the device either does not receive R2D transmissions outside the first time period or does not respond to R2D transmissions received outside the first time period; or The device is required to receive R2D transmissions within the first time period.

11. The method according to any one of claims 1 to 10, characterized in that, When X is greater than 1, the responses of the X R2D transmissions employ at least one of time-division multiplexing and frequency-division multiplexing.

12. The method according to any one of claims 1 to 11, characterized in that, When X is less than Y: The device ignores or does not store YX R2D transmissions; or The device stores YX R2D transmissions, and responds to all or part of the stored YX R2D transmissions in a subsequent response. Wherein, the YX R2D transmissions are the R2D transmissions other than the X R2D transmissions among the Y R2D transmissions.

13. The method according to claim 12, characterized in that, When the device stores YX R2D transmissions, the method further includes: The device determines at least one R2D transmission from the stored YX R2D transmissions and responds accordingly.

14. The method according to any one of claims 1 to 13, characterized in that, The timing relationship between the X device-to-reader D2R transmissions that respond to the X R2D transmissions and the X R2D transmissions includes: The X D2R transmissions are located after the X R2D transmissions; or The first D2R transmission in the X D2R transmissions is located after the first R2D transmission in the X R2D transmissions. If there is a second R2D transmission in the X R2D transmissions, the first D2R transmission is located before the second R2D transmission, and the first D2R transmission is a response to the first R2D transmission.

15. The method according to any one of claims 1 to 14, characterized in that, The frequency domain relationship between the X D2R transmissions responding to the X R2D transmissions and the X R2D transmissions includes: The frequency domain resources of the X D2R transmissions are the same as the frequency domain resources of the X R2D transmissions; or, The X transmission pairs include the first transmission pair and the second transmission pair; or Each of the X transmission pairs is the first transmission pair; or Each of the X transmission pairs is a second transmission pair; The transmission pair includes R2D transmission and D2R transmission responding to the R2D transmission. The frequency domain resources of the R2D transmission and the D2R transmission included in the first transmission pair are the same, while the frequency domain resources of the R2D transmission and the D2R transmission included in the first transmission pair are different.

16. The method according to any one of claims 1 to 15, characterized in that, The method further includes: The device receives the preamble and performs timed synchronization based on the preamble.

17. A response method, characterized in that, include: The reader sends Y readers to the device for R2D transmission, where Y is a positive integer; The reader receives responses to X R2D transmissions, where the X R2D transmissions are X of the Y R2D transmissions, and X is a positive integer less than or equal to Y.

18. The method according to claim 17, characterized in that, The X R2D transmissions are determined based on the first information; The first information includes at least one of the following: The types of R2D transmissions, reader information for R2D transmissions, instructions sent by network-side devices, reception time order of R2D transmissions, frequency domain resource order of R2D transmissions, signal quality of R2D transmissions, transmission information of R2D transmissions, and capability information of the devices.

19. The method according to claim 17 or 18, characterized in that, The Y R2D transmissions include: Y time-division multiplexed R2D transmissions within a first time period, wherein the first time period includes a first time window, a first R2D reception time, a first R2D duration, or a first period; or Frequency division multiplexing of Y R2D transmissions.

20. The method according to claim 19, characterized in that, The reader sends an R2D transmission to the device within the first time period; or The reader does not send R2D transmissions to the device outside of the first time period.

21. The method according to any one of claims 17 to 20, characterized in that, When X is greater than 1, the responses of the X R2D transmissions employ at least one of time-division multiplexing and frequency-division multiplexing.

22. The method according to any one of claims 17 to 21, characterized in that, The timing relationship between the X device-to-reader D2R transmissions that respond to the X R2D transmissions and the X R2D transmissions includes: The X D2R transmissions are located after the X R2D transmissions; or The first D2R transmission in the X D2R transmissions is located after the first R2D transmission in the X R2D transmissions. If there is a second R2D transmission in the X R2D transmissions, the first D2R transmission is located before the second R2D transmission, and the first D2R transmission is a response to the first R2D transmission.

23. The method according to any one of claims 17 to 22, characterized in that, The frequency domain relationship between the X D2R transmissions responding to the X R2D transmissions and the X R2D transmissions includes: The frequency domain resources of the X D2R transmissions are the same as the frequency domain resources of the X R2D transmissions; or, The X transmission pairs include the first transmission pair and the second transmission pair; or Each of the X transmission pairs is the first transmission pair; or Each of the X transmission pairs is a second transmission pair; The transmission pair includes R2D transmission and D2R transmission responding to the R2D transmission. The frequency domain resources of the R2D transmission and the D2R transmission included in the first transmission pair are the same, while the frequency domain resources of the R2D transmission and the D2R transmission included in the first transmission pair are different.

24. The method according to any one of claims 17 to 23, characterized in that, The method further includes: The reader sends a preamble to the device, which is used for timed synchronization.

25. A response device, characterized in that, include: The receiving module is used to receive R2D transmissions from Y readers to the device, where Y is a positive integer; The processing module is used to respond to X R2D transmissions out of Y R2D transmissions, where X is a positive integer less than or equal to Y.

26. The apparatus according to claim 25, characterized in that, The X R2D transmissions are determined based on the first information; The first information includes at least one of the following: The types of R2D transmissions, reader information for R2D transmissions, instructions sent by network-side devices, reception time order of R2D transmissions, frequency domain resource order of R2D transmissions, signal quality of R2D transmissions, transmission information of R2D transmissions, and capability information of the devices.

27. The apparatus according to claim 25 or 26, characterized in that, When X is less than Y, the processing module is further configured to: Ignore or do not store YX R2D transfers; or Store YX R2D transmissions, and respond to all or part of the stored YX R2D transmissions in a subsequent response; Wherein, the YX R2D transmissions are the R2D transmissions other than the X R2D transmissions among the Y R2D transmissions.

28. A response device, characterized in that, include: The sending module is used to send Y readers to the device for R2D transmission, where Y is a positive integer; The receiving module is used to receive responses to X R2D transmissions, wherein the X R2D transmissions are X R2D transmissions out of the Y R2D transmissions, and X is a positive integer less than or equal to Y.

29. The apparatus according to claim 28, characterized in that, The X R2D transmissions are determined based on the first information; The first information includes at least one of the following: The types of R2D transmissions, reader information for R2D transmissions, instructions sent by network-side devices, reception time order of R2D transmissions, frequency domain resource order of R2D transmissions, signal quality of R2D transmissions, transmission information of R2D transmissions, and capability information of the devices.

30. A device, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the response method as described in any one of claims 1 to 16.

31. A reader / writer, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the response method as described in any one of claims 17 to 24.

32. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the response method as described in any one of claims 1 to 16, or implement the steps of the response method as described in any one of claims 17 to 24.

33. A computer program product, characterized in that, The computer program product is stored in a storage medium and is executed by at least one processor to implement the steps of the response method as described in any one of claims 1 to 16, or to implement the steps of the response method as described in any one of claims 17 to 24.

Images