Information indication method and apparatus, and device

Abstract

Provided in the present disclosure are an information indication method and apparatus, and a device. The method comprises: a first device indicating second information to a second device by means of first information and / or a first signal, wherein the second information is configured to indicate at least one of the following: the end of R2D transmission, the end of PRDCH transmission, the end of D2R transmission and the end of PDRCH transmission; the first information comprises TBS information or TTI information; the first signal comprises any one of the following signals: an R2D postamble, an R2D time acquisition signal, and an R2D timing acquisition signal; alternatively, the first signal comprises any one of the following signals: a D2R postamble, a D2R time acquisition signal, and a D2R timing acquisition signal.

Description

Information indication methods, devices and equipment

[0001] This disclosure claims priority to Chinese Patent Application No. 202411593835.2, filed with the Chinese Patent Office on November 8, 2024, entitled "Information Indication Method, Apparatus and Device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of communication technology, and in particular to an information indication method, apparatus and device. Background Technology

[0003] To support the interconnection of hundreds of billions of things and address the high network construction costs and operational costs associated with large-scale deployments, such as battery replacements, a new type of IoT device is being designed within the 5G system: Ambient Internet of Things (A-IoT). A-IoT devices possess little to no energy storage capacity, exhibiting low complexity, low cost, and low power consumption, which will facilitate the sensing and interconnection of everything.

[0004] In A-IoT communication, base stations or terminals (readers) send A-IoT downlink signals to A-IoT devices, instructing different types of A-IoT devices to either backscatter the incident signal or autonomously send uplink response signals. A-IoT devices then use the A-IoT uplink channel to backscatter the incident signal or autonomously send uplink response signals. However, because there is no broadcast channel in A-IoT communication, neither the base station / terminal (reader) nor the A-IoT device can know the transmission parameters of the A-IoT channel in advance, leading to reduced decoding efficiency for either the reader or the A-IoT device. Summary of the Invention

[0005] The purpose of this disclosure is to provide an information indication method, apparatus, and device to solve the problem of low decoding efficiency of readers or A-IoT devices for A-IoT channels in related technologies.

[0006] To address the aforementioned problems, this disclosure provides an information indication method, the method comprising:

[0007] The first device indicates second information to the second device through first information and / or first signal; wherein the second information is used to indicate at least one of the following: the end of the reader-to-device R2D transmission, the end of the physical reader-to-device channel PRDCH transmission, the end of the device-to-reader D2R transmission, and the end of the physical device-to-reader channel PDRCH transmission.

[0008] The first information includes: Transport Block Size (TBS) information or Transmission Time Interval (TTI) information;

[0009] The first signal includes any one of the following signals: R2D postscript, R2D time acquisition signal, R2D timing acquisition signal; or, the first signal includes any one of the following signals: D2R postscript, D2R time acquisition signal, D2R timing acquisition signal.

[0010] This disclosure also provides an information indication method, the method comprising:

[0011] The second device determines the second information based on the indication of the first information and / or the first signal; wherein the second information is used to indicate at least one of the following: the end of the reader-to-device R2D transmission, the end of the physical reader-to-device channel PRDCH transmission, the end of the device-to-reader D2R transmission, and the end of the physical device-to-reader channel PDRCH transmission.

[0012] The first information includes: Transport Block Size (TBS) information or Transmission Time Interval (TTI) information;

[0013] The first signal includes any one of the following signals: R2D postscript, R2D time acquisition signal, R2D timing acquisition signal; or, the first signal includes any one of the following signals: D2R postscript, D2R time acquisition signal, D2R timing acquisition signal.

[0014] This disclosure also provides a first device, including a memory, a transceiver, and a processor:

[0015] A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations:

[0016] The second information is indicated to the second device through the first information and / or the first signal; wherein the second information is used to indicate at least one of the following: the end of the reader-to-device R2D transmission, the end of the physical reader-to-device channel PRDCH transmission, the end of the device-to-reader D2R transmission, and the end of the physical device-to-reader channel PDRCH transmission.

[0017] The first information includes: Transport Block Size (TBS) information or Transmission Time Interval (TTI) information;

[0018] The first signal includes any one of the following signals: R2D postscript, R2D time acquisition signal, R2D timing acquisition signal; or, the first signal includes any one of the following signals: D2R postscript, D2R time acquisition signal, D2R timing acquisition signal.

[0019] This disclosure also provides a second device, including a memory, a transceiver, and a processor:

[0020] A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations:

[0021] Based on the indication of the first information and / or the first signal, the second information is determined; wherein the second information is used to indicate at least one of the following: the end of the reader-to-device R2D transmission, the end of the physical reader-to-device channel PRDCH transmission, the end of the device-to-reader D2R transmission, and the end of the physical device-to-reader channel PDRCH transmission.

[0022] The first information includes: Transport Block Size (TBS) information or Transmission Time Interval (TTI) information;

[0023] The first signal includes any one of the following signals: R2D postscript, R2D time acquisition signal, R2D timing acquisition signal; or, the first signal includes any one of the following signals: D2R postscript, D2R time acquisition signal, D2R timing acquisition signal.

[0024] This disclosure also provides an information indicating device, including:

[0025] An indication unit is configured to indicate second information to a second device via first information and / or a first signal; wherein the second information is configured to indicate at least one of the following: the end of reader-to-device R2D transmission, the end of physical reader-to-device channel PRDCH transmission, the end of device-to-reader D2R transmission, and the end of physical device-to-reader channel PDRCH transmission.

[0026] The first information includes: Transport Block Size (TBS) information or Transmission Time Interval (TTI) information;

[0027] The first signal includes any one of the following signals: R2D postscript, R2D time acquisition signal, R2D timing acquisition signal; or, the first signal includes any one of the following signals: D2R postscript, D2R time acquisition signal, D2R timing acquisition signal.

[0028] This disclosure also provides an information indicating device, including:

[0029] The determining unit is configured to determine second information based on the indication of first information and / or a first signal; wherein the second information is configured to indicate at least one of the following: the end of the reader-to-device R2D transmission, the end of the physical reader-to-device channel PRDCH transmission, the end of the device-to-reader D2R transmission, and the end of the physical device-to-reader channel PDRCH transmission.

[0030] The first information includes: Transport Block Size (TBS) information or Transmission Time Interval (TTI) information;

[0031] The first signal includes any one of the following signals: R2D postscript, R2D time acquisition signal, R2D timing acquisition signal; or, the first signal includes any one of the following signals: D2R postscript, D2R time acquisition signal, D2R timing acquisition signal.

[0032] This disclosure also provides a processor-readable storage medium storing a program for causing the processor to perform the method described above.

[0033] The above-disclosed technical solution has at least the following beneficial effects:

[0034] In the information indication method, apparatus, and device of this disclosure, a first device indicates second information to a second device through first information and / or a first signal. The second information is used to indicate at least one of the following: the end of R2D transmission, the end of PRDCH transmission, the end of D2R transmission, and the end of PDRCH transmission. The first information includes: Transport Block Size (TBS) information or Transmission Time Interval (TTI) information. The first signal includes any one of the following signals: R2D postscript, R2D time acquisition signal, and R2D timing acquisition signal; or, the first signal includes any one of the following signals: D2R postscript, D2R time acquisition signal, and D2R timing acquisition signal. This allows the second device to obtain the second information related to the end of transmission based on the detected first information and first signal, complete the reception and decoding of the A-IoT channel, solve the problem of indicating the end time of A-IoT channel transmission, enable A-IoT devices and readers to communicate in A-IoT, and avoid excessively long blind detections, reducing false alarm rates and power consumption. Attached Figure Description

[0035] Figure 1 shows a block diagram of a wireless communication system to which embodiments of the present disclosure may be applied;

[0036] Figure 2 illustrates one of the steps of the information indication method provided in this embodiment of the present disclosure;

[0037] Figure 3 is a schematic diagram of Example 1 provided in the embodiments of this disclosure;

[0038] Figure 4 is a schematic diagram of Example 2 provided in the embodiments of this disclosure;

[0039] Figure 5 is a schematic diagram of Example 3 provided in the embodiments of this disclosure;

[0040] Figure 6 is a schematic diagram of Example 4 provided in the embodiments of this disclosure;

[0041] Figure 7 is a schematic diagram of Example 5 provided in the embodiments of this disclosure;

[0042] Figure 8 shows one of the schematic diagrams of Example Six provided in the embodiments of this disclosure;

[0043] Figure 9 shows a second schematic diagram of Example Six provided in the embodiments of this disclosure;

[0044] Figure 10 shows one of the schematic diagrams of Example Seven provided in the embodiments of this disclosure;

[0045] Figure 11 shows a second schematic diagram of Example Seven provided in the embodiments of this disclosure;

[0046] Figure 12 illustrates a second step of the information indication method provided in this embodiment of the present disclosure.

[0047] Figure 13 shows a schematic diagram of the structure of the first device provided in an embodiment of this disclosure;

[0048] Figure 14 shows a schematic diagram of the structure of the second device provided in an embodiment of this disclosure;

[0049] Figure 15 shows a schematic diagram of one of the information indication devices provided in the embodiments of this disclosure;

[0050] Figure 16 shows a second schematic diagram of the structure of the information indication device provided in the embodiments of this disclosure. Detailed Implementation

[0051] To make the technical problems, technical solutions and advantages to be solved by this disclosure clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0052] Figure 1 shows a block diagram of a wireless communication system applicable to embodiments of this disclosure. In this scenario, the wireless communication system includes a core network device 11 (optional), a reader / writer 12, an intermediate device 13, and a terminal device (such as an AIoT device, i.e., an A-IoT device) 14. The reader / writer 12 can also be called an interrogator device, such as a terminal, a relay device, or an Integrated Access Backhaul (IAB) device. Terminal devices (such as AIoT devices) 3-4 refer to devices capable of responding to AIoT tasks. It should be noted that, as shown in Figure 1, there may be terminal devices (such as AIoT devices) located at a distance that cannot be covered by the access network device or the reader / writer device. In this case, the coverage area can be extended by using an intermediate device to communicate with the AIoT device; or the intermediate device can assist the terminal device (such as the AIoT device) in communication with other network devices (such as access network devices or readers / writers).

[0053] In this disclosure, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship. In this disclosure, the term "multiple" refers to two or more objects, and other quantifiers are similar.

[0054] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this disclosure.

[0055] The technical solutions provided in this disclosure can be applied to a variety of systems. For example, applicable systems may include Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD) systems, Long Term Evolution Advanced (LTE-A) systems, Universal Mobile Telecommunications System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) systems, 5G New Radio (NR) systems and their evolved communication systems, and the 6th Generation Mobile Communication Technology (6G) systems. These systems may include terminal equipment and network equipment. The systems may also include a core network component, such as an Evolved Packet Core (EPC) or a 5G Core (5GC).

[0056] The terminal devices involved in the embodiments of this disclosure can be devices that provide voice and / or data connectivity to users, handheld devices with wireless connectivity, or other processing devices connected to a wireless modem. The names of the terminal devices may differ in different systems; for example, in a 5G system, a terminal device can be called User Equipment (UE). Wireless terminal devices can communicate with one or more core networks (CNs) via a Radio Access Network (RAN). Wireless terminal devices can be mobile terminal devices, such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, for example, portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile devices that exchange voice and / or data with the RAN. Examples include Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). Wireless terminal equipment can also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point, remote terminal, access terminal, user terminal, user agent, or user device, but is not limited to these terms in the embodiments disclosed herein.

[0057] The network device disclosed in this embodiment may be a base station, which may include multiple cells providing services to terminals. Depending on the specific application, the base station may also be called an access point, or a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names. The network device may be used to exchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, where the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air interface. For example, the network equipment involved in this disclosure can be a base transceiver station (BTS) in a Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA) system, a NodeB in a wide-band Code Division Multiple Access (WCDMA) system, an evolved Node B (eNB or e-NodeB) in a long term evolution (LTE) system, a 5G base station (gNB) in a next generation system, a Home evolved Node B (HeNB), a relay node, a femto, a pico, etc., and is not limited in this disclosure. In some network structures, the network equipment may include centralized unit (CU) nodes and distributed unit (DU) nodes, and the centralized unit and distributed unit may be geographically separated.

[0058] Network devices and terminal devices can each use one or more antennas for Multiple Input Multiple Output (MIMO) transmission. MIMO transmission can be Single User MIMO (SU-MIMO) or Multiple User MIMO (MU-MIMO). Depending on the configuration and number of antenna combinations, MIMO transmission can be 2D MIMO, 3D MIMO, Full Dimension MIMO (FD-MIMO), or Massive MIMO, or it can be diversity transmission, pre-coded transmission, or beamforming transmission, etc.

[0059] As shown in Figure 2, this embodiment of the present disclosure provides an information indication method, the method comprising:

[0060] Step 201: The first device indicates second information to the second device through first information and / or first signal; wherein the second information is used to indicate at least one of the following: the end of reader to device (R2D) transmission, the end of physical reader to device channel (PRDCH) transmission, the end of device to reader (D2R) transmission, and the end of physical device to reader channel (PDRCH) transmission.

[0061] The first information includes: Transport Block Size (TBS) information or Transmission Time Interval (TTI) information;

[0062] The first signal includes any one of the following signals: R2D postamble, R2D time acquisition signal, R2D timing acquisition signal; or, the first signal includes any one of the following signals: D2R postamble, D2R time acquisition signal, D2R timing acquisition signal.

[0063] In some embodiments, the first device includes at least one of a reader, a base station, a terminal, and an intermediate node; and / or, the second device is an Aspect-Oriented Internet of Things (A-IoT) device or a reader.

[0064] For example, if the first device is a reader and the second device is an A-IoT device, then the second information is used to indicate at least one of the following: the end of R2D transmission and the end of PRDCH transmission.

[0065] For example, if the first device is at least one of a base station, a terminal, or an intermediate node, and the second device is a reader, then the second information is used to indicate at least one of the following: the end of D2R transmission, or the end of PDRCH transmission.

[0066] For example, the reader indicates the end of R2D and the end of D2R information to the second device by specifying the transport block size (e.g., downlink and uplink transport block sizes). For instance, the reader notifies the A-IoT device that the downlink data packet in this R2D transmission is 100 bits, and simultaneously instructs the A-IoT device that it expects the uplink data packet in the next D2R transmission to be 200 bits. Then, the A-IoT device can determine the end of R2D information using the 100 bits and the end of D2R information using the 200 bits.

[0067] In some embodiments, A-IoT devices can be categorized into the following three types:

[0068] Type 1 devices: Peak power consumption is approximately 1 μW, with energy storage capability, and initial sampling frequency offset (SFO) up to 10. X The device has neither DL amplification nor UL amplification capabilities. The device's UL transmission is achieved through backscattering on an externally provided carrier wave.

[0069] Type 2a devices: peak power consumption ≤ several hundred μW, with energy storage capability, and initial sampling frequency offset (SFO) up to 10. X ppm, the device has DL and / or UL amplification capabilities. The device's UL transmission is backscattered on an externally provided carrier.

[0070] Type 2b devices: Peak power consumption ≤ several hundred μW, with energy storage capability, and initial sampling frequency offset (SFO) up to 10. X ppm, the device has DL and / or UL amplification capabilities. The UL transmission of the device is generated internally.

[0071] In this embodiment, the first device indicates the first information to the second device via the first information and / or the first signal. The first information includes at least one of the following: R2D transmission end, PRDCH transmission end, D2R transmission end, PDRCH transmission end. Using this method, the reader can indicate the R2D transmission end information to the A-IoT device, or the A-IoT device can indicate the D2R transmission end information to the reader. This allows the A-IoT device or reader to receive and decode the PRDCH or PDRCH based on the obtained R2D or D2R transmission end information, solving the problem of indicating the PRDCH or PDRCH transmission end time and enabling A-IoT communication between the A-IoT device and the reader.

[0072] In at least one embodiment of this disclosure, the TTI is N first units, where N is a positive number, and the first unit is any one of the following: frame, half-frame, time slot, mini-time slot, orthogonal frequency division multiplexing (OFDM) symbol.

[0073] As an optional embodiment, in step 201, the first device instructing the second device to send the second information via a first signal includes:

[0074] The first device indicates the second information to the second device through at least one of the following: the pattern of the first signal, the combination of high voltage transmission and low voltage transmission in the first signal, and the duration of the first signal.

[0075] In at least one embodiment of this disclosure, the first device instructs the second device to provide second information via first information and / or a first signal, including at least three schemes, namely:

[0076] Option 1: The first device instructs the second device to send the second information via the first information and the first signal;

[0077] Option 2: The first device sends the second information to the second device via the first information;

[0078] Option 3: The first device sends a first signal to the second device to indicate the second information.

[0079] Regarding Option 1:

[0080] The TBS information is used to indicate the numerical range of TBS, or the TTI information is used to indicate the numerical range of TTI; in some embodiments, the numerical range of TBS or the numerical range of TTI is used to indicate coarse second information.

[0081] The rough second piece of information can be understood as an approximate transmission end time, not an accurate transmission end time.

[0082] In some embodiments, where the TBS information is used to indicate the numerical range of TBS, or the TTI information is used to indicate the numerical range of TTI, the first device also indicates precise second information via the first signal. The specific method for indicating precise second information via the first signal is consistent with Scheme 3 and will not be described in detail in Scheme 1.

[0083] Among these, the precise second information can be understood as the actual transmission end time, that is, the accurate transmission end time.

[0084] Compared to simply indicating the end of transmission with the first signal, Scheme 1 can limit the range of A-IoT devices' detection of the first signal, avoid A-IoT devices performing blind detection for too long, reduce device power consumption, and lower the false alarm rate.

[0085] Compared to simply indicating the end of transmission with the first information, Scheme 1 can indicate the actual TB size or end position of the transmission more flexibly, instead of being limited to a fixed number of TBS or TTI.

[0086] The first information refers to TBS (Plan 1-1) or TTI (Plan 1-2).

[0087] For scheme 1-1, there are four possible ranges for the value of TBS, as shown in Table 1:

[0088] Table 1

[0089] For schemes 1-2, there are four possible ranges for the TTI value, as shown in Table 2:

[0090] Table 2

[0091] Example 1

[0092] The first device instructs the second device to provide the second information via the first information and the first signal.

[0093] Wherein, the second information is used to indicate at least one of the following: the end of R2D transmission, the end of PRDCH transmission; or, the second information is used to indicate at least one of the following: the end of D2R transmission, the end of PDRCH transmission;

[0094] The first information includes: TBS information;

[0095] The first signal includes any one of the following signals: R2D postscript, R2D time acquisition signal, R2D timing acquisition signal; or, the first signal includes any one of the following signals: D2R postscript, D2R time acquisition signal, D2R timing acquisition signal.

[0096] For example, in an A-IoT system, a reader sends a PRDCH to an A-IoT device (hereinafter referred to as the device) to transmit control and data information. When receiving the PRDCH from the reader, the A-IoT device first learns transmission information such as the PRDCH or R2D transmission end time. Due to the limitations of low device complexity and low power consumption, and to reduce system control overhead, the A-IoT system may not send precise resource scheduling information, i.e., the precise transport block size or transmission duration. Therefore, a method needs to be designed to notify the device of the R2D transmission end time information so that the device can receive the PRDCH based on the PRDCH transmission end time information and then demodulate and decode it.

[0097] As shown in Figure 3, the end position of the PRDCH transmission is indicated by the first information in the R2D control information field and the R2D postamble. The A-IoT device first detects the first information in the R2D control information, i.e., TBS, to determine the range of values ​​for the transport block size, but not the precise value of the transport block size; the actual end position of the transmission is indicated by the R2D postamble (i.e., the first signal). If the A-IoT device detects the R2D postamble, it will take the start position of the R2D postamble as the end position of the PRDCH transmission.

[0098] In this example, the A-IoT transmission end indication scheme allows the reader to send first information and a first signal to the A-IoT device to indicate the end of R2D transmission. This enables the A-IoT device to obtain the R2D transmission end information based on the detected first information and first signal, completing the reception and decoding of the PRDCH. This solves the problem of indicating the PRDCH transmission end time, enabling A-IoT communication between the A-IoT device and the reader. Furthermore, this joint indication can limit the range of the device's detection of the first signal, avoiding excessively long blind detections, reducing false alarm rates, and decreasing device power consumption.

[0099] Example 2

[0100] The first device instructs the second device to provide the second information via the first information and the first signal.

[0101] Wherein, the second information is used to indicate at least one of the following: the end of R2D transmission, the end of PRDCH transmission; or, the second information is used to indicate at least one of the following: the end of D2R transmission, the end of PDRCH transmission;

[0102] The first information includes: TTI information;

[0103] The first signal includes any one of the following signals: R2D postscript, R2D time acquisition signal, R2D timing acquisition signal; or, the first signal includes any one of the following signals: D2R postscript, D2R time acquisition signal, D2R timing acquisition signal.

[0104] For example, in an A-IoT system, a reader sends a PRDCH to an A-IoT device (hereinafter referred to as the device) to transmit control and data information. When receiving the PRDCH from the reader, the A-IoT device first learns transmission information such as the PRDCH or R2D transmission end time. Due to the limitations of low device complexity and low power consumption, and to reduce system control overhead, the A-IoT system may not send precise resource scheduling information, i.e., the precise transport block size or transmission duration. Therefore, a method needs to be designed to notify the A-IoT device of the R2D transmission end time information, so that the A-IoT device, knowing the PRDCH transmission end time information, can complete the reception of the PRDCH and then demodulate and decode it.

[0105] As shown in Figure 4, the end position of the PRDCH transmission is indicated by the first information in the R2D control information field and the R2D postamble (i.e., the first signal). The A-IoT device first detects the first information in the R2D control information, i.e., the TTI information, to determine the range of values ​​for the transmission duration, but not the precise value of the transmission duration; the actual end position of the transmission is indicated by the R2D postamble (i.e., the first signal). If the A-IoT device detects the R2D postamble (i.e., the first signal), it will take the start position of the R2D postamble (i.e., the first signal) as the end position of the PRDCH transmission.

[0106] In this example, the A-IoT transmission end indication scheme allows the reader to send first information and a first signal to the A-IoT device to indicate the end of R2D transmission. This enables the A-IoT device to obtain the R2D transmission end information based on the detected first information and first signal, completing the reception and decoding of the PRDCH. This solves the problem of indicating the PRDCH transmission end time, enabling A-IoT communication between the A-IoT device and the reader. Furthermore, this joint indication can limit the range of the device's detection of the first signal, avoiding excessively long blind detections, reducing false alarm rates, and decreasing device power consumption.

[0107] Regarding Option 2:

[0108] The TBS information is used to indicate the value of TBS, or the TTI information is used to indicate the value of TTI.

[0109] In some embodiments, the value of TBS or TTI is used to indicate precise second information.

[0110] Among these, the precise second information can be understood as the actual transmission end time, that is, the accurate transmission end time.

[0111] In one implementation, the first information is TBS information, that is, the second information is indicated by indicating the transport block size. For example, the transport block end position is the R2D transmission end position or the D2R transmission end position.

[0112] In another implementation, the first information is TTI information, which is indicated by specifying the transmission time interval. The transmission time interval is the duration of each R2D transmission.

[0113] In some embodiments, there is a one-to-one mapping relationship between the transmission time interval and the transmission block size, and the first device or the second device can calculate the transmission block size through the transmission time interval.

[0114] In an optional embodiment of this disclosure, the value or range of the TBS includes any of the following:

[0115] The TBS information occupies 2 bits, and / or the value or range of the TBS includes any of the following: 128 bits, 256 bits, 512 bits, 1000 bits;

[0116] The TBS information occupies 2 bits, and / or the value or range of the TBS includes any of the following: 20 bits, 96 bits, 400 bits, 1000 bits;

[0117] The TBS information occupies 3 bits, and / or the value or range of the TBS includes any of the following: 16 bits, 32 bits, 64 bits, 128 bits, 256 bits, 512 bits, 768 bits, 1000 bits;

[0118] The TBS information occupies 4 bits, and / or the TBS information indicates the value or range of the TBS with an indication granularity of 64 bits; and the minimum value or range of the TBS is 64 bits, and the maximum value or range of the TBS is 1000 bits; for example, the TBS values ​​that can be represented are: 64, 126, ..., 960, 1000 bits.

[0119] The TBS information occupies 5 bits, and / or the TBS information indicates the value or range of the TBS with an indication granularity of 32 bits; and the minimum value or range of the TBS is 32 bits, and the maximum value or range of the TBS is 1000 bits; for example, the TBS values ​​that can be represented are: 32, 64, 80, 112, ..., 992, 1000 bits;

[0120] The TBS information occupies 6 bits, and / or the TBS information indicates the value or range of the TBS with an indication granularity of 16 bits; and the minimum value or range of the TBS is 16 bits, and the maximum value or range of the TBS is 1000 bits; the representable TBS values ​​are: 16, 32, 48, 64, 80, 96, ..., 992, 1008, 1000 bits.

[0121] In another optional embodiment of this disclosure, the value or range of the TBS is less than 64 bits, and the TBS information indicates the value or range of the TBS with an indication granularity of 8 bits.

[0122] Alternatively, if the value or range of the TBS is greater than 64 bits and less than 256 bits, the TBS information indicates the value or range of the TBS with an indication granularity of 16 bits.

[0123] Alternatively, if the value or range of the TBS is greater than 256 bits, the TBS information indicates the value or range of the TBS with an indication granularity of 32 bits.

[0124] In yet another optional embodiment of this disclosure, the value or range of the TTI includes any of the following:

[0125] The TTI information occupies 2 bits, and / or the value or range of the TTI includes any of the following: 8 first units, 32 first units, 128 first units, or 256 first units;

[0126] The TTI information occupies 3 bits, and / or the value or range of the TTI includes any of the following: 4 first units, 8 first units, 16 first units, 32 first units, 64 first units, 128 first units, or 256 first units;

[0127] The TTI information occupies 4 bits, and / or the TTI information indicates the value or range of the TTI with an indication granularity of 16 first units; and the minimum value or range of the TTI is 2 first units, and the maximum value or range of the TTI is 256 first units; for example, the TTI values ​​that can be represented are: 2, 18, ..., 240, 256 first units;

[0128] The TTI information occupies 5 bits, and / or the TTI information indicates the value or range of the TTI with an indication granularity of 8 first units; and the minimum value or range of the TTI is 2 first units, and the maximum value or range of the TTI is 256 first units; for example, the TTI values ​​that can be represented are: 2, 10, ..., 248, 256 first units;

[0129] The TTI information occupies 6 bits, and / or the TTI information indicates the value or range of the TTI with an indication granularity of 4 first units; and the minimum value or range of the TTI is 2 first units, and the maximum value or range of the TTI is 256 first units; for example, the TTI values ​​that can be represented are: 2, 6, ..., 252, 256 first units;

[0130] The TTI information occupies 6 bits, and / or the TTI information indicates the value or range of the TTI with an indication granularity of 2 first units; and the minimum value or range of the TTI is 2 first units, and the maximum value or range of the TTI is 256 first units; for example, the TTI values ​​that can be represented are: 2, 4, 6, 8, ..., 252, 254, 256 first units.

[0131] In another optional embodiment of this disclosure, when the value or range of the TTI is less than 32 first units, the TTI information indicates the value or range of the TTI information with an indication granularity of 2 first units.

[0132] Alternatively, the value or range of the TTI is greater than 32 first units and less than 128 first units, and the TTI information indicates the value or range of the TTI information with an indication granularity of 4 first units.

[0133] Alternatively, if the value or range of the TTI is greater than 128 first units, the TTI information indicates the value or range of the TTI with an indication granularity of 8 first units.

[0134] Example 3

[0135] The first device sends the second information to the second device via the first information.

[0136] Wherein, the second information is used to indicate at least one of the following: the end of R2D transmission, the end of PRDCH transmission; or, the second information is used to indicate at least one of the following: the end of D2R transmission, the end of PDRCH transmission; wherein, the first information includes: TBS information.

[0137] The first piece of information is the TBS information, which indicates the second piece of information by indicating the transport block size. For example, the end position of the transport block is the end position of the R2D transport or the end position of the D2R transport.

[0138] As shown in Figure 5, the end position of the PDRCH transmission is indicated by the first information (TBS information) in the D2R control information field. The device first detects the first information in the D2R control information, i.e., the TBS information, to obtain the specific value of the transport block size, and then obtains the end position of the PDRCH transmission. The device then sends the PDRCH according to this end position.

[0139] In this example, the A-IoT transmission end indication scheme allows the reader to send a first message to the A-IoT device to indicate the end of D2R transmission. This enables the A-IoT device to obtain the D2R transmission end information based on the detected first message. The A-IoT device then sends a PDRCH at this end position, solving the problem of indicating the PDRCH transmission end time and enabling A-IoT devices and readers to communicate with each other.

[0140] Example 4

[0141] The first device sends the second information to the second device via the first information.

[0142] Wherein, the second information is used to indicate at least one of the following: the end of R2D transmission, the end of PRDCH transmission; or, the second information is used to indicate at least one of the following: the end of D2R transmission, the end of PDRCH transmission; wherein, the first information includes: TTI information.

[0143] The first piece of information is the Transmission Time Interval (TTI), which indicates the first information by specifying the transmission time interval. The transmission time interval is the duration of each R2D transmission. For example, the end position of a transport block is determined based on the TTI information, and the end position of the transport block is the end position of the D2R transmission.

[0144] As shown in Figure 6, the end position of the PDRCH transmission is indicated by the first information in the D2R control information field. By detecting the first information in the D2R control information, namely the TTI information, the reader obtains the specific value of the transmission duration, and thus the end position of the PDRCH transmission. In this way, the reader can receive the PDRCH according to this end position.

[0145] In this example, the A-IoT transmission end indication scheme allows the reader to send a first message to the A-IoT device to indicate the end of D2R transmission. This enables the A-IoT device to obtain the D2R transmission end information based on the detected first message. The A-IoT device then sends a PDRCH at this end position, solving the problem of indicating the PDRCH transmission end time and enabling A-IoT devices and readers to communicate with each other.

[0146] For Scheme 3 and the case in Scheme 1 where the first signal indicates precise second information, the first signal satisfies at least one of the following conditions:

[0147] The pattern of the first signal is different from the pattern of the preamble; the preamble includes: an R2D preamble, and / or a D2R preamble;

[0148] The pattern of the first signal is different from the pattern of the midamble; the midamble includes: R2D midamble, and / or, D2R midamble;

[0149] The pattern of the first signal is different from the pattern of the Start Indicator Part (SIP);

[0150] The pattern of the first signal is different from the pattern of the Clock Acquisition Part (CAP);

[0151] The pattern of the first signal is different from the pattern of the PRDCH;

[0152] The pattern of the first signal is different from the pattern of the PDRCH;

[0153] The PRDCH does not contain a combination pattern of high-voltage transmission and / or low-voltage transmission that is the same as the first signal;

[0154] The PDRCH does not contain the same combination pattern of high voltage transmission and / or low voltage transmission as the first signal;

[0155] The pattern of the first signal and the pattern of the preceding signal are mutually orthogonal or complementary patterns;

[0156] The pattern of the first signal and the pattern of the intermediate conductor are mutually orthogonal or complementary patterns;

[0157] The pattern of the first signal includes at least one low-voltage transmission and / or at least one high-voltage transmission.

[0158] Understandably, because the pattern of the first signal is different from the pattern of the preamble, or the pattern of the midamble, or the pattern of the SIP, or the pattern of the CAP, or the pattern of the PRDCH, or the pattern of the PDRCH, the second device identifies the first signal based on the pattern.

[0159] Example 5

[0160] The first device sends a first signal to the second device to indicate the second information.

[0161] Wherein, the second information is used to indicate at least one of the following: the end of R2D transmission, the end of PRDCH transmission; or, the second information is used to indicate at least one of the following: the end of D2R transmission, the end of PDRCH transmission; the first signal includes any one of the following signals: R2D postscript, R2D time acquisition signal, R2D timing acquisition signal; or, the first signal includes any one of the following signals: D2R postscript, D2R time acquisition signal, D2R timing acquisition signal.

[0162] For example, in an A-IoT system, a reader sends a PRDCH to an A-IoT device (hereinafter referred to as the device) to transmit control and data information. When the device receives the PRDCH from the reader, it first learns about the transmission information, such as the PRDCH or R2D transmission end time. Due to the low complexity and low power consumption of the device, and to reduce system control overhead, the A-IoT system may not send precise resource scheduling information, i.e., the precise transport block size or transmission duration. Instead, it indicates the end of the PRDCH transmission by sending a first signal (e.g., postamble), so that the A-IoT device, knowing the PRDCH transmission end time information, can complete the reception of the PRDCH and then demodulate and decode it.

[0163] As shown in Figure 7, the end position of the PRDCH transmission is indicated by the R2D postamble (first signal). During the R2D transmission detection process, if the A-IoT device detects the R2D postamble, it will take the start position of the R2D postamble as the end position of the PRDCH transmission.

[0164] In this example, by adopting the above-mentioned A-IoT transmission end information indication scheme, the reader can send a first signal to the A-IoT device to indicate the R2D transmission end information. This allows the A-IoT device to obtain the R2D transmission end information based on the detection of the first signal, complete the reception and decoding of PRDCH, solve the problem of indicating the PRDCH transmission end time, and enable the A-IoT device and the reader to communicate in A-IoT. Furthermore, it does not require indicating the end of R2D transmission through control information, resulting in lower signaling overhead.

[0165] This disclosure provides two types of pattern designs for the first signal: an ON / OFF pattern, or an ON-only pattern or an OFF-only pattern.

[0166] In one implementation of the ON / OFF pattern, the pattern of the first signal includes at least five high-voltage transmissions and / or low-voltage transmissions; and the first low-voltage transmission or the first high-voltage transmission in the pattern of the first signal is a guard interval.

[0167] It should be noted that if both the pattern for the first signal indicating the end of transmission and the pattern for the first signal indicating the start of transmission contain guard intervals, the guard interval in the pattern for the first signal indicating the end of transmission serves to isolate it from the PRDCH; the guard interval in the pattern for the first signal indicating the start of transmission serves to distinguish it from the different carrier waves (CWs) being transmitted.

[0168] In addition to the guard interval, the pattern of the first signal includes at least one of the following:

[0169] At least one voltage transmission and at least three high-voltage transmissions;

[0170] At least one high-voltage transmission and at least three low-voltage transmissions;

[0171] At least two low-voltage transmissions and at least three high-voltage transmissions;

[0172] At least two low-voltage transmissions and at least four high-voltage transmissions;

[0173] At least two low-voltage transmissions and at least five high-voltage transmissions

[0174] At least two high-voltage transmissions and at least three low-voltage transmissions;

[0175] At least two high-voltage transmissions and at least four low-voltage transmissions;

[0176] At least two high-voltage transmissions and at least five low-voltage transmissions.

[0177] In some embodiments, the combination of high-voltage transmission and low-voltage transmission in the pattern of the first signal includes at least one of the following:

[0178] High voltage transmission, low voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission;

[0179] Low voltage transmission, high voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission;

[0180] Low voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, low voltage transmission;

[0181] High voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, high voltage transmission;

[0182] High voltage transmission, low voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission;

[0183] Low voltage transmission, high voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission;

[0184] Low voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, low voltage transmission;

[0185] High voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, high voltage transmission;

[0186] High voltage transmission, low voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission;

[0187] Low voltage transmission, high voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission;

[0188] Low voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, low voltage transmission;

[0189] High voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, high voltage transmission.

[0190] In another implementation of the ON / OFF pattern, the pattern of the first signal includes at least four high-voltage transmissions and / or low-voltage transmissions.

[0191] The pattern of the first signal includes at least one of the following:

[0192] At least one voltage transmission and at least three high-voltage transmissions;

[0193] At least one high-voltage transmission and at least three low-voltage transmissions;

[0194] At least two low-voltage transmissions and at least three high-voltage transmissions;

[0195] At least two low-voltage transmissions and at least four high-voltage transmissions;

[0196] At least two low-voltage transmissions and at least five high-voltage transmissions

[0197] At least two high-voltage transmissions and at least three low-voltage transmissions;

[0198] At least two high-voltage transmissions and at least four low-voltage transmissions;

[0199] At least two high-voltage transmissions and at least five low-voltage transmissions.

[0200] In some embodiments, the combination of high-voltage transmission and low-voltage transmission in the pattern of the first signal includes at least one of the following:

[0201] Low voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission;

[0202] High voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission;

[0203] High voltage transmission, high voltage transmission, high voltage transmission, low voltage transmission;

[0204] Low voltage transmission, low voltage transmission, low voltage transmission, high voltage transmission;

[0205] Low voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission;

[0206] High voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission;

[0207] High voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, low voltage transmission;

[0208] Low voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, high voltage transmission;

[0209] Low voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission;

[0210] High voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission;

[0211] High voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, low voltage transmission;

[0212] Low voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, high voltage transmission.

[0213] Example 6

[0214] The first device sends a first signal to the second device to indicate the second information.

[0215] Wherein, the second information is used to indicate at least one of the following: the end of R2D transmission, the end of PRDCH transmission; or, the second information is used to indicate at least one of the following: the end of D2R transmission, the end of PDRCH transmission; the first signal includes any one of the following signals: R2D postscript, R2D time acquisition signal, R2D timing acquisition signal; or, the first signal includes any one of the following signals: D2R postscript, D2R time acquisition signal, D2R timing acquisition signal.

[0216] For example, in an A-IoT system, a reader sends a PRDCH to an A-IoT device (hereinafter referred to as the device) to transmit control and data information. When receiving the PRDCH from the reader, the A-IoT device first learns about the transmission information, such as the PRDCH or R2D transmission end time. Due to the limitations of low device complexity and low power consumption, and to reduce system control overhead, the A-IoT system may not send precise resource scheduling information, i.e., the precise transport block size or transmission duration. Instead, it indicates the end of the PRDCH transmission by sending a first signal (e.g., postamble), so that the A-IoT device, knowing the PRDCH transmission end time information, can complete the reception of the PRDCH and then demodulate and decode it.

[0217] As shown in Figure 8, the pattern of the first signal (i.e., postamble) is: high voltage transmission, low voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission; as shown in Figure 9, the pattern of the first signal (i.e., postamble) is: high voltage transmission, low voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission; the second device determines the start position of the postamble as the end position of the PRDCH transmission.

[0218] In this example, by adopting the above-mentioned A-IoT transmission end information indication scheme, the reader can send a first signal to indicate the R2D transmission end information to the A-IoT device. This allows the A-IoT device to obtain the R2D transmission end information based on the detection of the first signal, complete the reception and decoding of PRDCH, solve the problem of PRDCH transmission end time indication, and enable A-IoT devices and readers to communicate with each other in A-IoT. Furthermore, the advantage of the ON / OFF pattern is that it has better fault tolerance compared to the ON-only or OFF-only patterns.

[0219] For both ON-only and OFF-only patterns, the pattern of the first signal includes at least three low-voltage transmissions; or, the pattern of the first signal includes at least three high-voltage transmissions, thereby making the pattern of the first signal different from the pattern of the PRDCH or PDRCH.

[0220] The pattern of the first signal includes at least one of the following:

[0221] High voltage transmission, high voltage transmission, high voltage transmission;

[0222] Low voltage transmission, low voltage transmission, low voltage transmission;

[0223] High voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission;

[0224] Low voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission;

[0225] High voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission;

[0226] Low voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission.

[0227] Example 7

[0228] The first device sends a first signal to the second device to indicate the second information.

[0229] Wherein, the second information is used to indicate at least one of the following: the end of R2D transmission, the end of PRDCH transmission; or, the second information is used to indicate at least one of the following: the end of D2R transmission, the end of PDRCH transmission; the first signal includes any one of the following signals: R2D postscript, R2D time acquisition signal, R2D timing acquisition signal; or, the first signal includes any one of the following signals: D2R postscript, D2R time acquisition signal, D2R timing acquisition signal.

[0230] For example, in an A-IoT system, a reader sends a PRDCH to an A-IoT device (hereinafter referred to as the device) to transmit control and data information. When receiving the PRDCH from the reader, the A-IoT device first learns about the transmission information, such as the PRDCH or R2D transmission end time. Due to the limitations of low device complexity and low power consumption, and to reduce system control overhead, the A-IoT system may not send precise resource scheduling information, i.e., the precise transport block size or transmission duration. Instead, it indicates the end of the PRDCH transmission by sending a first signal (e.g., postamble), so that the A-IoT device, knowing the PRDCH transmission end time information, can complete the reception of the PRDCH and then demodulate and decode it.

[0231] As shown in Figure 10, the pattern of the first signal (i.e., postamble) is: high voltage transmission, high voltage transmission, high voltage transmission; as shown in Figure 11, the pattern of the first signal (i.e., postamble) is: high voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission; the second device determines the start position of the postamble as the end position of the PRDCH transmission.

[0232] In this example, by adopting the above-mentioned A-IoT transmission end information indication scheme, the reader can send a first signal to indicate the R2D transmission end information to the A-IoT device. This allows the A-IoT device to obtain the R2D transmission end information based on the detection of the first signal, complete the reception and decoding of PRDCH, solve the problem of indicating the PRDCH transmission end time, and enable the A-IoT device and the reader to communicate in A-IoT. Moreover, the advantage of this pattern is that it is simpler and has less overhead compared to the ON / OFF pattern.

[0233] In at least one embodiment of this disclosure, the pattern differences include:

[0234] The high-voltage transmission and / or low-voltage transmission in the pattern are different; the duration of the signals corresponding to the pattern can be the same or different;

[0235] Alternatively, the patterns may use different sequences; the durations of the signals corresponding to the patterns may be the same or different.

[0236] As an alternative embodiment, the first signal pattern is the same for different first parameters.

[0237] The first parameter includes at least one of the following: R2D chip length, OOK chip length, D2R chip length, PRDCH chip length, PDRCH chip length, R2D chip rate, OOK chip rate, D2R chip rate, PRDCH chip rate, and PDRCH chip rate; the chip rate is used to indicate the number of chips contained in an OFDM symbol.

[0238] The different first parameters include at least one of the following cases:

[0239] Different R2D chip lengths;

[0240] Different OOK chip lengths;

[0241] Different D2R chip lengths;

[0242] Different chip rate values.

[0243] In some embodiments, the first signal pattern includes:

[0244] The high-voltage transmission and / or low-voltage transmission in the pattern are the same; the duration of the signals corresponding to the pattern can be the same or different.

[0245] or,

[0246] The patterns use the same sequence; the duration of the signals corresponding to the patterns can be the same or different.

[0247] In one implementation, the same first parameter includes at least one of the following cases:

[0248] Same R2D chip length;

[0249] Same OOK chip length;

[0250] Same D2R chip length;

[0251] The same chip rate value.

[0252] In summary, in this embodiment of the present disclosure, the first device indicates second information to the second device through first information and / or a first signal. The second information is used to indicate at least one of the following: the end of R2D transmission, the end of PRDCH transmission; or, the second information is used to indicate at least one of the following: the end of D2R transmission, the end of PDRCH transmission; wherein, the first information includes: Transport Block Size (TBS) information or Transmission Time Interval (TTI) information; the first signal includes any one of the following signals: R2D postscript, R2D time acquisition signal, R2D timing acquisition signal; or, the first signal includes any one of the following signals: D2R postscript, D2R time acquisition signal, D2R timing acquisition signal; thereby enabling the second device to obtain the second information related to the end of transmission based on the detected first information and the first signal, complete the reception and decoding of the A-IoT channel, solve the problem of indicating the end time of A-IoT channel transmission, enable A-IoT devices and readers to perform A-IoT communication, and avoid the device from performing blind detection for too long, reduce the false alarm rate, and reduce device power consumption.

[0253] As shown in Figure 12, this embodiment of the present disclosure also provides an information indication method, the method comprising:

[0254] Step 1201: The second device determines the second information based on the indication of the first information and / or the first signal; wherein the second information is used to indicate at least one of the following: the end of the reader-to-device R2D transmission, the end of the physical reader-to-device channel PRDCH transmission, the end of the device-to-reader D2R transmission, and the end of the physical device-to-reader channel PDRCH transmission.

[0255] The first information includes: Transport Block Size (TBS) information or Transmission Time Interval (TTI) information;

[0256] The first signal includes any one of the following signals: R2D postscript, R2D time acquisition signal, R2D timing acquisition signal; or, the first signal includes any one of the following signals: D2R postscript, D2R time acquisition signal, D2R timing acquisition signal.

[0257] In some embodiments, the first device includes at least one of a reader, a base station, a terminal, and an intermediate node; and / or, the second device is an Aspect-Oriented Internet of Things (A-IoT) device or a reader.

[0258] For example, if the first device is a reader and the second device is an A-IoT device, then the second information is used to indicate at least one of the following: the end of R2D transmission and the end of PRDCH transmission.

[0259] For example, if the first device is at least one of a base station, a terminal, or an intermediate node, and the second device is a reader, then the second information is used to indicate at least one of the following: the end of D2R transmission, or the end of PDRCH transmission.

[0260] As an optional embodiment, in step 1201, the second device determines the second information according to the indication of the first signal, including:

[0261] The second device determines the second information based on at least one of the following: the pattern of the first signal, the combination of high-voltage transmission and low-voltage transmission in the first signal, and the length of the first signal.

[0262] The indication method of the first information and / or the indication method of the first signal involved in this embodiment can be referred to the content described in the embodiment of Figure 1, and the repeated content will not be repeated.

[0263] In this embodiment, the first device indicates the first information to the second device via the first information and / or the first signal. The first information includes at least one of the following: R2D transmission end, PRDCH transmission end, D2R transmission end, PDRCH transmission end. Using this method, the reader can indicate the R2D transmission end information to the A-IoT device, or the A-IoT device can indicate the D2R transmission end information to the reader. This allows the A-IoT device or reader to receive and decode the PRDCH or PDRCH based on the obtained R2D or D2R transmission end information, solving the problem of indicating the PRDCH or PDRCH transmission end time and enabling A-IoT communication between the A-IoT device and the reader.

[0264] As shown in Figure 13, this embodiment of the present disclosure also provides a first device, including a memory 1320, a transceiver 1310, and a processor 1300:

[0265] The memory 1320 is used to store computer programs; the transceiver 1310 is used to send and receive data under the control of the processor 1300; the processor 1300 is used to read the computer program in the memory 1320 and perform the following operations:

[0266] The second information is indicated to the second device through the first information and / or the first signal; wherein the second information is used to indicate at least one of the following: the end of the reader-to-device R2D transmission, the end of the physical reader-to-device channel PRDCH transmission, the end of the device-to-reader D2R transmission, and the end of the physical device-to-reader channel PDRCH transmission.

[0267] The first information includes: Transport Block Size (TBS) information or Transmission Time Interval (TTI) information;

[0268] The first signal includes any one of the following signals: R2D postscript, R2D time acquisition signal, R2D timing acquisition signal; or, the first signal includes any one of the following signals: D2R postscript, D2R time acquisition signal, D2R timing acquisition signal.

[0269] As an optional embodiment, the TTI is N first units, where N is a positive number, and the first unit is any one of the following:

[0270] Frame, half-frame, time slot, mini time slot, orthogonal frequency division multiplexing (OFDM) symbol.

[0271] As an optional embodiment, the processor is also configured to read the computer program in the memory 1320 and perform the following operations:

[0272] The first device indicates the second information to the second device through at least one of the following: the pattern of the first signal, the combination of high voltage transmission and low voltage transmission in the first signal, and the duration of the first signal.

[0273] As an optional embodiment, the TBS information is used to indicate the value or range of the TBS, or the TTI information is used to indicate the value or range of the TTI.

[0274] As an optional embodiment, the value of TBS or the value of TTI is used to indicate precise second information; the value range of TBS or the value range of TTI is used to indicate coarse second information.

[0275] And / or,

[0276] When the TBS information is used to indicate the numerical range of TBS, or the TTI information is used to indicate the numerical range of TTI, the first device also indicates precise second information via the first signal.

[0277] As an optional embodiment, the value or range of the TBS includes any of the following:

[0278] The TBS information occupies 2 bits, and / or the value or range of the TBS includes any of the following: 128 bits, 256 bits, 512 bits, 1000 bits;

[0279] The TBS information occupies 2 bits, and / or the value or range of the TBS includes any of the following: 20 bits, 96 bits, 400 bits, 1000 bits;

[0280] The TBS information occupies 3 bits, and / or the value or range of the TBS includes any of the following: 16 bits, 32 bits, 64 bits, 128 bits, 256 bits, 512 bits, 768 bits, 1000 bits;

[0281] The TBS information occupies 4 bits, and / or the TBS information indicates the value or range of the TBS with an indication granularity of 64 bits; and the minimum value or range of the TBS is 64 bits, and the maximum value or range of the TBS is 1000 bits.

[0282] The TBS information occupies 5 bits, and / or the TBS information indicates the value or range of the TBS with an indication granularity of 32 bits; and the minimum value or range of the TBS is 32 bits, and the maximum value or range of the TBS is 1000 bits.

[0283] The TBS information occupies 6 bits, and / or the TBS information indicates the value or range of the TBS with an indication granularity of 16 bits; and the minimum value or range of the TBS is 16 bits, and the maximum value or range of the TBS is 1000 bits.

[0284] As an optional embodiment, the value or range of the TBS is less than 64 bits, and the TBS information indicates the value or range of the TBS with an indication granularity of 8 bits.

[0285] or,

[0286] The value or range of the TBS is greater than 64 bits and less than 256 bits, and the TBS information indicates the value or range of the TBS with an indication granularity of 16 bits.

[0287] or,

[0288] The value or range of the TBS is greater than 256 bits, and the TBS information indicates the value or range of the TBS with an indication granularity of 32 bits.

[0289] As an optional embodiment, the value or range of the TTI includes any of the following:

[0290] The TTI information occupies 2 bits, and / or the value or range of the TTI includes any of the following: 8 first units, 32 first units, 128 first units, or 256 first units;

[0291] The TTI information occupies 3 bits, and / or the value or range of the TTI includes any of the following: 4 first units, 8 first units, 16 first units, 32 first units, 64 first units, 128 first units, or 256 first units;

[0292] The TTI information occupies 4 bits, and / or the TTI information indicates the value or range of the TTI with an indication granularity of 16 first units; and the minimum value or range of the TTI is 2 first units, and the maximum value or range of the TTI is 256 first units.

[0293] The TTI information occupies 5 bits, and / or the TTI information indicates the value or range of the TTI with an indication granularity of 8 first units; and the minimum value or range of the TTI is 2 first units, and the maximum value or range of the TTI is 256 first units.

[0294] The TTI information occupies 6 bits, and / or the TTI information indicates the value or range of the TTI with an indication granularity of 4 first units; and the minimum value or range of the TTI is 2 first units, and the maximum value or range of the TTI is 256 first units.

[0295] The TTI information occupies 6 bits, and / or the TTI information indicates the value or range of the TTI with an indication granularity of 2 first units; and the minimum value or range of the TTI is 2 first units, and the maximum value or range of the TTI is 256 first units.

[0296] As an optional embodiment, if the value or range of the TTI is less than 32 first units, the TTI information indicates the value or range of the TTI information with an indication granularity of 2 first units.

[0297] or,

[0298] The value or range of the TTI is greater than 32 first units and less than 128 first units, and the TTI information indicates the value or range of the TTI information with an indication granularity of 4 first units.

[0299] or,

[0300] The TTI value or range is greater than 128 first units, and the TTI information indicates the TTI value or range with an indication granularity of 8 first units.

[0301] As an optional embodiment, the first signal satisfies at least one of the following conditions:

[0302] The pattern of the first signal is different from the pattern of the preamble; the preamble includes: an R2D preamble, and / or a D2R preamble;

[0303] The pattern of the first signal is different from the pattern of the intermediate conductor; the intermediate conductor includes: R2D intermediate conductor, and / or, D2R intermediate conductor;

[0304] The pattern of the first signal is different from the pattern of the start indicator component;

[0305] The pattern of the first signal is different from the pattern of the clock acquisition component;

[0306] The pattern of the first signal is different from the pattern of the PRDCH;

[0307] The pattern of the first signal is different from the pattern of the PDRCH;

[0308] The PRDCH does not contain a combination pattern of high-voltage transmission and / or low-voltage transmission that is the same as the first signal;

[0309] The PDRCH does not contain the same combination pattern of high voltage transmission and / or low voltage transmission as the first signal;

[0310] The pattern of the first signal and the pattern of the preceding signal are mutually orthogonal or complementary patterns;

[0311] The pattern of the first signal and the pattern of the intermediate conductor are mutually orthogonal or complementary patterns;

[0312] The pattern of the first signal includes at least one low-voltage transmission and / or at least one high-voltage transmission.

[0313] As an optional embodiment, the pattern of the first signal includes at least five high-voltage transmissions and / or low-voltage transmissions; and the first low-voltage transmission or the first high-voltage transmission in the pattern of the first signal is a guard interval.

[0314] As an optional embodiment, in addition to the guard interval, the pattern of the first signal includes at least one of the following:

[0315] At least one voltage transmission and at least three high-voltage transmissions;

[0316] At least one high-voltage transmission and at least three low-voltage transmissions;

[0317] At least two low-voltage transmissions and at least three high-voltage transmissions;

[0318] At least two low-voltage transmissions and at least four high-voltage transmissions;

[0319] At least two low-voltage transmissions and at least five high-voltage transmissions

[0320] At least two high-voltage transmissions and at least three low-voltage transmissions;

[0321] At least two high-voltage transmissions and at least four low-voltage transmissions;

[0322] At least two high-voltage transmissions and at least five low-voltage transmissions.

[0323] As an optional embodiment, the combination of high-voltage transmission and low-voltage transmission in the pattern of the first signal includes at least one of the following:

[0324] High voltage transmission, low voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission;

[0325] Low voltage transmission, high voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission;

[0326] Low voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, low voltage transmission;

[0327] High voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, high voltage transmission;

[0328] High voltage transmission, low voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission;

[0329] Low voltage transmission, high voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission;

[0330] Low voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, low voltage transmission;

[0331] High voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, high voltage transmission;

[0332] High voltage transmission, low voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission;

[0333] Low voltage transmission, high voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission;

[0334] Low voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, low voltage transmission;

[0335] High voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, high voltage transmission.

[0336] As an optional embodiment, the pattern of the first signal includes at least four high-voltage transmissions and / or low-voltage transmissions.

[0337] As an optional embodiment, the pattern of the first signal includes at least one of the following:

[0338] At least one voltage transmission and at least three high-voltage transmissions;

[0339] At least one high-voltage transmission and at least three low-voltage transmissions;

[0340] At least two low-voltage transmissions and at least three high-voltage transmissions;

[0341] At least two low-voltage transmissions and at least four high-voltage transmissions;

[0342] At least two low-voltage transmissions and at least five high-voltage transmissions

[0343] At least two high-voltage transmissions and at least three low-voltage transmissions;

[0344] At least two high-voltage transmissions and at least four low-voltage transmissions;

[0345] At least two high-voltage transmissions and at least five low-voltage transmissions.

[0346] As an optional embodiment, the combination of high-voltage transmission and low-voltage transmission in the pattern of the first signal includes at least one of the following:

[0347] Low voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission;

[0348] High voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission;

[0349] High voltage transmission, high voltage transmission, high voltage transmission, low voltage transmission;

[0350] Low voltage transmission, low voltage transmission, low voltage transmission, high voltage transmission;

[0351] Low voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission;

[0352] High voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission;

[0353] High voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, low voltage transmission;

[0354] Low voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, high voltage transmission;

[0355] Low voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission;

[0356] High voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission;

[0357] High voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, low voltage transmission;

[0358] Low voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, high voltage transmission.

[0359] As an optional embodiment, the pattern of the first signal includes at least three low-voltage transmissions; or, the pattern of the first signal includes at least three high-voltage transmissions.

[0360] As an optional embodiment, the pattern of the first signal includes at least one of the following:

[0361] High voltage transmission, high voltage transmission, high voltage transmission;

[0362] Low voltage transmission, low voltage transmission, low voltage transmission;

[0363] High voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission;

[0364] Low voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission;

[0365] High voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission, high voltage transmission;

[0366] Low voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission, low voltage transmission.

[0367] As an optional embodiment, the different patterns include:

[0368] The high-voltage transmission and / or low-voltage transmission in the pattern are different;

[0369] or,

[0370] The pattern uses different sequences;

[0371] The durations of the signals corresponding to the patterns may be the same or different.

[0372] As an optional embodiment, the first signal pattern is the same for different first parameters;

[0373] The first parameter includes at least one of the following: R2D chip length, OOK chip length, D2R chip length, PRDCH chip length, PDRCH chip length, R2D chip rate, OOK chip rate, D2R chip rate, PRDCH chip rate, and PDRCH chip rate; the chip rate is used to indicate the number of chips contained in an OFDM symbol.

[0374] As an alternative embodiment, different first parameters include at least one of the following cases:

[0375] Different R2D chip lengths;

[0376] Different OOK chip lengths;

[0377] Different D2R chip lengths;

[0378] Different chip rate values.

[0379] As an optional embodiment, the first signal pattern includes:

[0380] The high-voltage transmission and / or low-voltage transmission in the pattern are the same;

[0381] or,

[0382] The patterns used the same sequence;

[0383] The durations of the signals corresponding to the patterns may be the same or different.

[0384] As an optional embodiment, the first device includes at least one of a reader, a base station, a terminal, and an intermediate node; and / or,

[0385] The second device is an environmental Internet of Things (A-IoT) device or a reader.

[0386] In Figure 13, the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 1300 and memory represented by memory 1320. The bus architecture may also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. Transceiver 1310 may be multiple elements, including transmitters and receivers, providing units for communicating with various other devices over transmission media, including wireless channels, wired channels, optical fibers, etc. Processor 1300 is responsible for managing the bus architecture and general processing, and memory 1320 may store data used by processor 1300 during operation.

[0387] The processor 1300 can be a central processing unit (CPU), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor can also adopt a multi-core architecture.

[0388] In this embodiment, the first device indicates the first information to the second device via the first information and / or the first signal. The first information includes at least one of the following: R2D transmission end, PRDCH transmission end, D2R transmission end, PDRCH transmission end. Using this method, the reader can indicate the R2D transmission end information to the device, or the device can indicate the D2R transmission end information to the reader. This allows the device or reader to receive and decode the PRDCH or PDRCH based on the obtained R2D or D2R transmission end information, solving the problem of indicating the PRDCH or PDRCH transmission end time and enabling A-IoT devices and readers to communicate with each other in A-IoT.

[0389] It should be noted that the first device provided in this disclosure is a device capable of executing the above-described information indication method. Therefore, all embodiments of the above-described information indication method are applicable to this device and can achieve the same or similar beneficial effects, which will not be repeated here.

[0390] As shown in Figure 14, this embodiment of the present disclosure also provides a second device, including a memory 1420, a transceiver 1410, and a processor 1400:

[0391] The memory 1420 is used to store computer programs; the transceiver 1410 is used to send and receive data under the control of the processor 1400; the processor 1400 is used to read the computer program in the memory 1420 and perform the following operations:

[0392] Based on the indication of the first information and / or the first signal, the second information is determined; wherein the second information is used to indicate at least one of the following: the end of the reader-to-device R2D transmission, the end of the physical reader-to-device channel PRDCH transmission, the end of the device-to-reader D2R transmission, and the end of the physical device-to-reader channel PDRCH transmission.

[0393] The first information includes: Transport Block Size (TBS) information or Transmission Time Interval (TTI) information;

[0394] The first signal includes any one of the following signals: R2D postscript, R2D time acquisition signal, R2D timing acquisition signal; or, the first signal includes any one of the following signals: D2R postscript, D2R time acquisition signal, D2R timing acquisition signal.

[0395] As an optional embodiment, the TTI is N first units, where N is a positive number, and the first unit is any one of the following:

[0396] Frame, half-frame, time slot, mini time slot, orthogonal frequency division multiplexing (OFDM) symbol.

[0397] As an optional embodiment, the processor is also configured to read a computer program from the memory and perform the following operations:

[0398] The second device determines the second information based on at least one of the following: the pattern of the first signal, the combination of high-voltage transmission and low-voltage transmission in the first signal, and the length of the first signal.

[0399] As an optional embodiment, the TBS information is used to indicate the value or range of the TBS, or the TTI information is used to indicate the value or range of the TTI.

[0400] As an optional embodiment, the value of TBS or the value of TTI is used to indicate precise second information; the value range of TBS or the value range of TTI is used to indicate coarse second information.

[0401] And / or,

[0402] When the TBS information is used to indicate the numerical range of TBS, or the TTI information is used to indicate the numerical range of TTI, the first device also indicates precise second information via the first signal.

[0403] As an optional embodiment, the pattern of the first signal includes at least five high-voltage transmissions and / or low-voltage transmissions; and the first low-voltage transmission or the first high-voltage transmission in the pattern of the first signal is a guard interval.

[0404] As an optional embodiment, the pattern of the first signal includes at least three low-voltage transmissions; or, the pattern of the first signal includes at least three high-voltage transmissions.

[0405] As an optional embodiment, the different patterns include:

[0406] The high-voltage transmission and / or low-voltage transmission in the pattern are different;

[0407] or,

[0408] The pattern uses different sequences;

[0409] The durations of the signals corresponding to the patterns may be the same or different.

[0410] As an optional embodiment, the first signal pattern is the same for different first parameters;

[0411] The first parameter includes at least one of the following: R2D chip length, OOK chip length, D2R chip length, PRDCH chip length, PDRCH chip length, R2D chip rate, OOK chip rate, D2R chip rate, PRDCH chip rate, and PDRCH chip rate; the chip rate is used to indicate the number of chips contained in an OFDM symbol.

[0412] As an alternative embodiment, different first parameters include at least one of the following cases:

[0413] Different R2D chip lengths;

[0414] Different OOK chip lengths;

[0415] Different D2R chip lengths;

[0416] Different chip rate values.

[0417] As an optional embodiment, the first signal pattern includes:

[0418] The high-voltage transmission and / or low-voltage transmission in the pattern are the same;

[0419] or,

[0420] The patterns used the same sequence;

[0421] The durations of the signals corresponding to the patterns may be the same or different.

[0422] As an optional embodiment, the first device includes at least one of a reader, a base station, a terminal, and an intermediate node; and / or,

[0423] The second device is an environmental Internet of Things (A-IoT) device or a reader.

[0424] In Figure 14, the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 1400 and memory represented by memory 1420. The bus architecture may also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. Transceiver 1410 may be multiple elements, including transmitters and receivers, providing units for communicating with various other devices over transmission media, including wireless channels, wired channels, optical fibers, etc. Processor 1400 is responsible for managing the bus architecture and general processing, and memory 1420 may store data used by processor 1400 during operation.

[0425] The processor 1400 can be a central processing unit (CPU), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor can also adopt a multi-core architecture.

[0426] In this embodiment, the first device indicates the first information to the second device via the first information and / or the first signal. The first information includes at least one of the following: R2D transmission end, PRDCH transmission end, D2R transmission end, PDRCH transmission end. Using this method, the reader can indicate the R2D transmission end information to the device, or the device can indicate the D2R transmission end information to the reader. This allows the device or reader to receive and decode the PRDCH or PDRCH based on the obtained R2D or D2R transmission end information, solving the problem of indicating the PRDCH or PDRCH transmission end time and enabling A-IoT devices and readers to communicate with each other in A-IoT.

[0427] It should be noted that the second device provided in this disclosure is a device capable of executing the above-described information indication method. Therefore, all embodiments of the above-described information indication method are applicable to this device and can achieve the same or similar beneficial effects, which will not be repeated here.

[0428] As shown in Figure 15, this embodiment of the present disclosure also provides an information indicating device, including:

[0429] Indication unit 1501 is used to indicate second information to a second device through first information and / or a first signal; wherein the second information is used to indicate at least one of the following: the end of the reader-to-device R2D transmission, the end of the physical reader-to-device channel PRDCH transmission, the end of the device-to-reader D2R transmission, and the end of the physical device-to-reader channel PDRCH transmission.

[0430] The first information includes: Transport Block Size (TBS) information or Transmission Time Interval (TTI) information;

[0431] The first signal includes any one of the following signals: R2D postscript, R2D time acquisition signal, R2D timing acquisition signal; or, the first signal includes any one of the following signals: D2R postscript, D2R time acquisition signal, D2R timing acquisition signal.

[0432] As an optional embodiment, the first device includes at least one of a reader, a base station, a terminal, and an intermediate node; and / or,

[0433] The second device is an environmental Internet of Things (A-IoT) device or a reader.

[0434] It should be noted that the apparatus provided in this embodiment can implement all the method steps implemented in the above method embodiment and can achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0435] As shown in Figure 16, this embodiment of the present disclosure also provides an information indicating device, including:

[0436] The determining unit 1601 is configured to determine second information based on the indication of the first information and / or the first signal; wherein the second information is configured to indicate at least one of the following: the end of the reader-to-device R2D transmission, the end of the physical reader-to-device channel PRDCH transmission, the end of the device-to-reader D2R transmission, and the end of the physical device-to-reader channel PDRCH transmission.

[0437] The first information includes: Transport Block Size (TBS) information or Transmission Time Interval (TTI) information;

[0438] The first signal includes any one of the following signals: R2D postscript, R2D time acquisition signal, R2D timing acquisition signal; or, the first signal includes any one of the following signals: D2R postscript, D2R time acquisition signal, D2R timing acquisition signal.

[0439] As an optional embodiment, the first device includes at least one of a reader, a base station, a terminal, and an intermediate node; and / or,

[0440] The second device is an environmental Internet of Things (A-IoT) device or a reader.

[0441] It should be noted that the apparatus provided in this embodiment can implement all the method steps implemented in the above method embodiment and can achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0442] It should be noted that the division of units in the embodiments of this disclosure is illustrative and only represents one logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of this disclosure can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated units described above can be implemented in hardware or as software functional units.

[0443] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of this disclosure, in essence, or the part that contributes to related technologies, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods described in the various embodiments of this disclosure. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0444] This disclosure also provides a processor-readable storage medium storing a computer program that causes the processor to execute the various processes described in the method embodiments above, achieving the same technical effects. To avoid repetition, these processes will not be repeated here. The processor-readable storage medium can be any available medium or data storage device accessible to the processor, including but not limited to magnetic storage (e.g., floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (e.g., compact discs (CDs), digital video discs (DVDs), Blu-ray discs (BD), high-definition versatile discs (HVD), etc.), and semiconductor storage (e.g., ROMs, erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), non-volatile memory (NAND flash), solid-state drives (SSDs), etc.).

[0445] This disclosure also provides a computer program product, including computer instructions. When the computer instructions are executed by a processor, they implement the various processes in the method embodiments described above and achieve the same technical effects. To avoid repetition, further details are omitted here.

[0446] Those skilled in the art will understand that embodiments of this disclosure can be provided as methods, systems, or computer program products. Therefore, this disclosure can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this disclosure can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage and optical storage) containing computer-usable program code.

[0447] This disclosure is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this disclosure. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in one or more flowchart illustrations and / or one or more block diagrams.

[0448] These processor-executable instructions may also be stored in a processor-readable memory that can instruct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means that implement the functions specified in one or more flowcharts and / or one or more block diagrams.

[0449] These processor-executable instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, such that the instructions, which execute on the computer or other programmable apparatus, provide steps for implementing the functions specified in one or more flowcharts and / or one or more block diagrams.

[0450] Furthermore, it should be noted that in the apparatus and method of this disclosure, it is obvious that the components or steps can be decomposed and / or recombined. These decompositions and / or recombinations should be considered equivalent solutions of this disclosure. Moreover, the steps performing the above series of processes can naturally be executed in the order described, but are not necessarily required to be executed in chronological order; some steps can be executed in parallel or independently of each other. Those skilled in the art will understand that all or any step or component of the method and apparatus of this disclosure can be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or a combination thereof, which can be achieved by those skilled in the art using their basic programming skills after reading the description of this disclosure.

[0451] It should be noted that the above division of modules is merely a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, these modules can be implemented entirely in software via processing element calls; they can be fully implemented in hardware; or some modules can be implemented by processing element calls to software, while others are implemented in hardware. For example, a module can be a separate processing element, or it can be integrated into a chip in the aforementioned device. Alternatively, it can be stored as program code in the memory of the aforementioned device, and its function can be called and executed by a processing element of the device. The implementation of other modules is similar. Moreover, these modules can be fully or partially integrated together, or they can be implemented independently. The processing element mentioned here can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each of the above modules can be completed through integrated logic circuits in the hardware of the processor element or through software instructions.

[0452] For example, each module, unit, subunit, or submodule can be one or more integrated circuits configured to implement the above methods, such as one or more application-specific integrated circuits (ASICs), one or more digital signal processors (DSPs), or one or more field-programmable gate arrays (FPGAs). As another example, when a module is implemented using processing element scheduler code, the processing element can be a general-purpose processor, such as a central processing unit (CPU) or other processor capable of calling program code. Furthermore, these modules can be integrated together to implement a system-on-a-chip (SOC).

[0453] The terms “first,” “second,” etc., used in this disclosure and in the claims are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this disclosure described herein may be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus. Additionally, the use of “and / or” in the specification and claims indicates at least one of the connected objects, such as A and / or B and / or C, indicating seven possibilities: A alone, B alone, C alone, and both A and B, both B and C, both A and C, and A, B, and C. Similarly, the use of “at least one of A and B” in this specification and claims should be understood as “A alone, B alone, or both A and B.”

[0454] Obviously, those skilled in the art can make various modifications and variations to this disclosure without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims of this disclosure and their equivalents, this disclosure is also intended to include such modifications and variations.

Claims

1. An information indication method, the method comprising: The first device indicates second information to the second device through first information and / or first signal; wherein the second information is used to indicate at least one of the following: the end of the reader-to-device R2D transmission, the end of the physical reader-to-device channel PRDCH transmission, the end of the device-to-reader D2R transmission, and the end of the physical device-to-reader channel PDRCH transmission. The first information includes: Transport Block Size (TBS) information or Transmission Time Interval (TTI) information; The first signal includes any one of the following signals: R2D postscript, R2D time acquisition signal, R2D timing acquisition signal; or, the first signal includes any one of the following signals: D2R postscript, D2R time acquisition signal, D2R timing acquisition signal.

2. The method according to claim 1, wherein, The first device instructs the second device to send second information via a first signal, including: The first device indicates the second information to the second device through at least one of the following: the pattern of the first signal, the combination of high voltage transmission and low voltage transmission in the first signal, and the duration of the first signal.

3. The method according to claim 1, wherein, The TBS information is used to indicate the value or range of the TBS, or the TTI information is used to indicate the value or range of the TTI.

4. The method according to claim 3, wherein, The value of TBS or the value of TTI are used to indicate precise second information; the range of values ​​of TBS or the range of values ​​of TTI are used to indicate coarse second information. And / or, When the TBS information is used to indicate the numerical range of TBS, or the TTI information is used to indicate the numerical range of TTI, the first device also indicates precise second information via the first signal.

5. The method according to claim 3, wherein, The value or range of the TBS includes any of the following: The TBS information occupies 2 bits, and / or the value or range of the TBS includes any of the following: 128 bits, 256 bits, 512 bits, 1000 bits; The TBS information occupies 2 bits, and / or the value or range of the TBS includes any of the following: 20 bits, 96 bits, 400 bits, 1000 bits; The TBS information occupies 3 bits, and / or the value or range of the TBS includes any of the following: 16 bits, 32 bits, 64 bits, 128 bits, 256 bits, 512 bits, 768 bits, 1000 bits; The TBS information occupies 4 bits, and / or the TBS information indicates the value or range of the TBS with an indication granularity of 64 bits; and the minimum value or range of the TBS is 64 bits, and the maximum value or range of the TBS is 1000 bits. The TBS information occupies 5 bits, and / or the TBS information indicates the value or range of the TBS with an indication granularity of 32 bits; and the minimum value or range of the TBS is 32 bits, and the maximum value or range of the TBS is 1000 bits. The TBS information occupies 6 bits, and / or the TBS information indicates the value or range of the TBS with an indication granularity of 16 bits; and the minimum value or range of the TBS is 16 bits, and the maximum value or range of the TBS is 1000 bits.

6. The method according to claim 3, wherein, The value or range of the TBS is less than 64 bits, and the TBS information indicates the value or range of the TBS with an indication granularity of 8 bits. or, The value or range of the TBS is greater than 64 bits and less than 256 bits, and the TBS information indicates the value or range of the TBS with an indication granularity of 16 bits. or, The value or range of the TBS is greater than 256 bits, and the TBS information indicates the value or range of the TBS with an indication granularity of 32 bits.

7. The method according to claim 3, wherein, The value or range of the TTI includes any of the following: The TTI information occupies 2 bits, and / or the value or range of the TTI includes any of the following: 8 first units, 32 first units, 128 first units, or 256 first units; The TTI information occupies 3 bits, and / or the value or range of the TTI includes any of the following: 4 first units, 8 first units, 16 first units, 32 first units, 64 first units, 128 first units, or 256 first units; The TTI information occupies 4 bits, and / or the TTI information indicates the value or range of the TTI with an indication granularity of 16 first units; and the minimum value or range of the TTI is 2 first units, and the maximum value or range of the TTI is 256 first units. The TTI information occupies 5 bits, and / or the TTI information indicates the value or range of the TTI with an indication granularity of 8 first units; and the minimum value or range of the TTI is 2 first units, and the maximum value or range of the TTI is 256 first units. The TTI information occupies 6 bits, and / or the TTI information indicates the value or range of the TTI with an indication granularity of 4 first units; and the minimum value or range of the TTI is 2 first units, and the maximum value or range of the TTI is 256 first units. The TTI information occupies 6 bits, and / or the TTI information indicates the value or range of the TTI with an indication granularity of 2 first units; and the minimum value or range of the TTI is 2 first units, and the maximum value or range of the TTI is 256 first units.

8. The method according to claim 3, wherein, When the value or range of the TTI is less than 32 first units, the TTI information indicates the value or range of the TTI information with an indication granularity of 2 first units. or, The value or range of the TTI is greater than 32 first units and less than 128 first units, and the TTI information indicates the value or range of the TTI information with an indication granularity of 4 first units. or, The TTI value or range is greater than 128 first units, and the TTI information indicates the TTI value or range with an indication granularity of 8 first units.

9. The method according to claim 1, wherein, The first signal satisfies at least one of the following conditions: The pattern of the first signal is different from the pattern of the preamble; the preamble includes: an R2D preamble, and / or a D2R preamble; The pattern of the first signal is different from the pattern of the intermediate conductor; the intermediate conductor includes: R2D intermediate conductor, and / or, D2R intermediate conductor; The pattern of the first signal is different from the pattern of the start indicator component; The pattern of the first signal is different from the pattern of the clock acquisition component; The pattern of the first signal is different from the pattern of the PRDCH; The pattern of the first signal is different from the pattern of the PDRCH; The PRDCH does not contain a combination pattern of high-voltage transmission and / or low-voltage transmission that is the same as the first signal; The PDRCH does not contain the same combination pattern of high voltage transmission and / or low voltage transmission as the first signal; The pattern of the first signal and the pattern of the preceding signal are mutually orthogonal or complementary patterns; The pattern of the first signal and the pattern of the intermediate conductor are mutually orthogonal or complementary patterns; The pattern of the first signal includes at least one low-voltage transmission and / or at least one high-voltage transmission.

10. The method according to claim 1, wherein, The pattern of the first signal includes at least five high-voltage transmissions and / or low-voltage transmissions; and the first low-voltage transmission or the first high-voltage transmission in the pattern of the first signal is a guard interval.

11. The method according to claim 10, wherein, In addition to the guard interval, the pattern of the first signal includes at least one of the following: At least one voltage transmission and at least three high-voltage transmissions; At least one high-voltage transmission and at least three low-voltage transmissions; At least two low-voltage transmissions and at least three high-voltage transmissions; At least two low-voltage transmissions and at least four high-voltage transmissions; At least two low-voltage transmissions and at least five high-voltage transmissions At least two high-voltage transmissions and at least three low-voltage transmissions; At least two high-voltage transmissions and at least four low-voltage transmissions; At least two high-voltage transmissions and at least five low-voltage transmissions.

12. The method according to claim 1, wherein, The pattern of the first signal includes at least four high-voltage transmissions and / or low-voltage transmissions.

13. The method according to claim 12, wherein, The pattern of the first signal includes at least one of the following: At least one voltage transmission and at least three high-voltage transmissions; At least one high-voltage transmission and at least three low-voltage transmissions; At least two low-voltage transmissions and at least three high-voltage transmissions; At least two low-voltage transmissions and at least four high-voltage transmissions; At least two low-voltage transmissions and at least five high-voltage transmissions At least two high-voltage transmissions and at least three low-voltage transmissions; At least two high-voltage transmissions and at least four low-voltage transmissions; At least two high-voltage transmissions and at least five low-voltage transmissions.

14. The method according to claim 1, wherein, The pattern of the first signal includes at least three low-voltage transmissions; or, the pattern of the first signal includes at least three high-voltage transmissions.

15. The method according to claim 9, wherein, The differences in the patterns include: The high-voltage transmission and / or low-voltage transmission in the pattern are different; or, The pattern uses different sequences; The durations of the signals corresponding to the patterns may be the same or different.

16. The method according to claim 1, wherein, The first device includes at least one of a reader, a base station, a terminal, and an intermediate node; and / or, The second device is an environmental Internet of Things (A-IoT) device or a reader.

17. An information indication method, the method comprising: The second device determines the second information based on the indication of the first information and / or the first signal; wherein the second information is used to indicate at least one of the following: the end of the reader-to-device R2D transmission, the end of the physical reader-to-device channel PRDCH transmission, the end of the device-to-reader D2R transmission, and the end of the physical device-to-reader channel PDRCH transmission. The first information includes: Transport Block Size (TBS) information or Transmission Time Interval (TTI) information; The first signal includes any one of the following signals: R2D postscript, R2D time acquisition signal, R2D timing acquisition signal; or, the first signal includes any one of the following signals: D2R postscript, D2R time acquisition signal, D2R timing acquisition signal.

18. A first device, comprising a memory, a transceiver, and a processor: A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations: The second information is indicated to the second device through the first information and / or the first signal; wherein... The second information is used to indicate at least one of the following: the end of the reader-to-device R2D transmission, the end of the physical reader-to-device channel PRDCH transmission, the end of the device-to-reader D2R transmission, and the end of the physical device-to-reader channel PDRCH transmission. The first information includes: Transport Block Size (TBS) information or Transmission Time Interval (TTI) information; The first signal includes any one of the following signals: R2D postscript, R2D time acquisition signal, R2D timing acquisition signal; or, the first signal includes any one of the following signals: D2R postscript, D2R time acquisition signal, D2R timing acquisition signal.

19. A second device, comprising a memory, a transceiver, and a processor: A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations: Based on the indication of the first information and / or the first signal, the second information is determined; wherein, The second information is used to indicate at least one of the following: the end of the reader-to-device R2D transmission, the end of the physical reader-to-device channel PRDCH transmission, the end of the device-to-reader D2R transmission, and the end of the physical device-to-reader channel PDRCH transmission. The first information includes: Transport Block Size (TBS) information or Transmission Time Interval (TTI) information; The first signal includes any one of the following signals: R2D postscript, R2D time acquisition signal, R2D timing acquisition signal; or, the first signal includes any one of the following signals: D2R postscript, D2R time acquisition signal, D2R timing acquisition signal.

20. An information indication device, comprising: An indication unit is configured to indicate second information to a second device via first information and / or a first signal; wherein the second information is configured to indicate at least one of the following: the end of reader-to-device R2D transmission, the end of physical reader-to-device channel PRDCH transmission, the end of device-to-reader D2R transmission, and the end of physical device-to-reader channel PDRCH transmission. The first information includes: Transport Block Size (TBS) information or Transmission Time Interval (TTI) information; The first signal includes any one of the following signals: R2D postscript, R2D time acquisition signal, R2D timing acquisition signal; or, the first signal includes any one of the following signals: D2R postscript, D2R time acquisition signal, D2R timing acquisition signal.

21. An information indication device, comprising: The determining unit is configured to determine second information based on the indication of first information and / or a first signal; wherein the second information is configured to indicate at least one of the following: the end of the reader-to-device R2D transmission, the end of the physical reader-to-device channel PRDCH transmission, the end of the device-to-reader D2R transmission, and the end of the physical device-to-reader channel PDRCH transmission. The first information includes: Transport Block Size (TBS) information or Transmission Time Interval (TTI) information; The first signal includes any one of the following signals: R2D postscript, R2D time acquisition signal, R2D timing acquisition signal; or, the first signal includes any one of the following signals: D2R postscript, D2R time acquisition signal, D2R timing acquisition signal.

22. A processor-readable storage medium storing a program for causing the processor to perform the method of any one of claims 1 to 16, or for causing the processor to perform the method of claim 17.

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