Method and device used in node of Internet of Things communication in wireless communication

Abstract

The invention discloses a method and a device used in a node of Internet of Things communication in wireless communication. A node sends a first PRDCH, and the first PRDCH adopts an OOK (On-Off Keying); wherein the first PRDCH comprises L1 control information, candidate formats of the L1 control information included in the first PRDCH at least comprise a first format and a second format, and the first format and the second format respectively aim at different device types of receivers of the first PRDCH. The number of control information bits included in the first format and the number of control information bits included in the second format are different, and only the L1 control information of the second format in both the first format and the second format includes device type information. According to the method, the scheduling flexibility is improved, and the implementation complexity is reduced.

Description

Technical Field

[0001] The present application relates to a transmission method and apparatus in a wireless communication system, and particularly to a scheme and apparatus for a control information format of a signal in wireless communication. Background Art

[0002] The application scenarios of future wireless communication systems are becoming more and more diversified, and different application scenarios put forward different performance requirements for the system. In order to meet the different performance requirements of various application scenarios, the research on the new radio access technology (NR, New Radio) (or 5G) was initiated at the 72nd plenary session of 3GPP (3rd Generation Partner Project). With the wide application of 5G, new business models and new application scenarios are emerging continuously, such as Ambient Internet of Things. The existing 5G standards cannot fully meet the new requirements, so 3GPP is preparing to start relevant preliminary research. Summary of the Invention

[0003] In the 5G NR system, the research work on Ambient Internet of Things (A-IoT) was initiated in Rel-19. In the ambient physical network, OOK is expected to be used for the transmission between the reader and the Internet of Things device and between the Internet of Things device and the reader. This research work has just started. The applicant anticipates through research that the ambient Internet of Things will also become an important part of the future 6G network. At the same time, the applicant discovers through research that in the ambient physical network, the control information format carried by signal transmission needs to be newly designed according to the type of Internet of Things device.

[0004] Regarding the problem of the control information format in the environmental Internet of Things, this application discloses a solution. It should be noted that in the description of this application, only the transmission from the reader to the Internet of Things device is taken as a typical application scenario or example; this application is also equally applicable to 6G networks or other scenarios facing similar problems in the future (such as scenarios where the control information format needs to be considered, or scenarios where the types of Internet of Things devices need to be considered, such as scenarios supporting energy savings, or scenarios supporting user equipment to user equipment transmission, or for different application scenarios, such as eMBB, URLLC, full-duplex networks, non-terrestrial networks, integrated sensing and communication networks, intelligent metasurfaces, terahertz networks, V2X can also achieve similar technical effects. In addition, adopting a unified solution for different scenarios (including but not limited to eMBB, URLLC, energy savings, Internet of Things, full-duplex networks, non-terrestrial networks, integrated sensing and communication networks, intelligent metasurfaces, terahertz networks, V2X scenarios) or different application parameters helps to reduce hardware complexity and cost. Without conflict, the embodiments used in the terminal and the features in the embodiments can be applied to the devices used in the Internet of Things devices or base stations in this application, and vice versa.

[0005] This application discloses a method for a terminal, characterized by including:

[0006] Sending a first PRDCH, where the first PRDCH uses OOK;

[0007] Wherein, the first PRDCH includes L1 control information, and the candidate formats of the L1 control information included in the first PRDCH at least include a first format and a second format. The first format and the second format are respectively for different device types of the receivers of the first PRDCH. The number of control information bits included in the first format and the number of control information bits included in the second format are different. Only the L1 control information of the second format among the first format and the second format includes device type information.

[0008] As an embodiment, considering that different types of Internet of Things devices have different hardware structures and device complexities, different formats of L1 (Layer 1) control information are set for different types of Internet of Things devices. A relatively simple L1 control information format is set for Internet of Things devices with lower complexity, and a relatively complex L1 control information format is set for Internet of Things devices with higher complexity. It is more flexible while reducing the implementation complexity, maximizing the utilization of the device performance, and enhancing the robustness of the system.

[0009] According to one aspect of the present application, the method is characterized in that the device type includes at least one of type 1, type 2a, and type 2b. The Internet of Things device of type 1 monitors the number of control information bits corresponding to the first format, and at least one of the Internet of Things devices of type 2a or type 2b monitors the number of control information bits corresponding to the first format and the number of control information bits corresponding to the second format.

[0010] According to one aspect of the present application, the method is characterized in that the L1 control information included in the first PRDCH adopts the second format. A field included in the L1 control information included in the first PRDCH indicates a transmission mode, and the transmission mode includes at least one of unicast, multicast, or broadcast. When the transmission mode is indicated as multicast, at least one field included in the L1 control information included in the first PRDCH indicates a multicast group identifier.

[0011] According to one aspect of the present application, the method is characterized in that the L1 control information included in the first PRDCH adopts the first format, and at least one field at the MAC layer carried by the first PRDCH indicates the device type of the receiver of the first PRDCH.

[0012] According to one aspect of the present application, the method is characterized by including:

[0013] Receiving a first PDRCH;

[0014] Wherein, when the L1 control information included in the first PRDCH adopts the first format, a field at the MAC layer included in the first PRDCH indicates the number of chips occupied by the first PDRCH. When the L1 control information included in the first PRDCH adopts the second format, a field included in the L1 control information included in the first PRDCH indicates the number of chips occupied by the first PDRCH, and the chips include at least one of an OOK time unit and a BPSK time unit.

[0015] According to one aspect of the present application, the method is characterized in that the first PRDCH includes a data sub-signal and a control sub-signal. The control sub-signal carries L1 control information, the data sub-signal carries data information bits, and the time domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than a first time interval, and the first time interval is equal to an absolute time or equal to a plurality of OOK time units.

[0016] According to one aspect of the present application, the above method is characterized in that the target power value is equal to the transmission power value of the first PRDCH, and the target power value is equal to the smaller value compared between the first upper limit value and the first power value; at least one of the first upper limit value and the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0017] The present application discloses a terminal, which is characterized in that the terminal includes:

[0018] One or more processors and a memory;

[0019] The memory is coupled to the one or more processors, and the memory is used to store computer program code. The computer program code includes computer instructions, and the one or more processors call the computer instructions to cause the terminal to execute the above method.

[0020] The present application discloses a method for an Internet of Things device, which is characterized in that it includes:

[0021] Receiving a first PRDCH, where the first PRDCH uses OOK;

[0022] Wherein, the first PRDCH includes L1 control information, and the candidate formats of the L1 control information included in the first PRDCH at least include a first format and a second format. The first format and the second format respectively correspond to different device types of the Internet of Things devices. The number of control information bits included in the first format and the number of control information bits included in the second format are different. Only the L1 control information of the second format among the first format and the second format includes device type information.

[0023] According to one aspect of the present application, the above method is characterized in that the device type includes at least one of type 1, type 2a, and type 2b. The Internet of Things device of type 1 monitors the number of control information bits corresponding to the first format, and at least one of the Internet of Things devices of type 2a or type 2b monitors the number of control information bits corresponding to the first format and the number of control information bits corresponding to the second format.

[0024] According to one aspect of the present application, the method is characterized in that the L1 control information included in the first PRDCH adopts the second format, and a field included in the L1 control information included in the first PRDCH indicates a transmission mode, where the transmission mode includes at least one of unicast, multicast, or broadcast; when the transmission mode is indicated as multicast, at least one field included in the L1 control information included in the first PRDCH indicates a multicast group identifier.

[0025] According to one aspect of the present application, the method is characterized in that the L1 control information included in the first PRDCH adopts the first format, and at least one field carried by the first PRDCH in the MAC layer indicates the device type of the Internet of Things device.

[0026] According to one aspect of the present application, the method is characterized in that it includes:

[0027] Transmit a first PDRCH;

[0028] Wherein, when the L1 control information included in the first PRDCH adopts the first format, a field in the MAC layer included in the first PRDCH indicates the number of chips occupied by the first PDRCH; when the L1 control information included in the first PRDCH adopts the second format, a field included in the L1 control information included in the first PRDCH indicates the number of chips occupied by the first PDRCH, and the chips include at least one of an OOK time unit and a BPSK time unit.

[0029] According to one aspect of the present application, the method is characterized in that the first PRDCH includes a data sub-signal and a control sub-signal, the control sub-signal carries L1 control information, the data sub-signal carries data information bits, and the time-domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than a first time interval, and the first time interval is equal to an absolute time or equal to a plurality of OOK time units.

[0030] According to one aspect of the present application, the method is characterized in that the target power value is equal to the transmission power value of the first PRDCH, and the target power value is equal to the smaller value compared between a first upper limit value and a first power value; at least one of the first upper limit value or the first power value depends on the number of OOK time units included in an OFDM symbol occupied by the first PRDCH in the time domain.

[0031] The present application discloses an Internet of Things device, which is characterized in that the Internet of Things device includes: one or more processors and a memory;

[0032] The memory is coupled to the one or more processors, and the memory is used to store computer program code, the computer program code includes computer instructions, and the one or more processors call the computer instructions to cause the terminal to execute the above method.

[0033] As an embodiment, compared with the traditional solution, the present application has the following advantages:

[0034] Reduces the device processing complexity;

[0035] Improves the transmission performance;

[0036] Improves the transmission reliability and enhances the robustness of the system; BRIEF DESCRIPTION OF THE DRAWINGS

[0037] By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, objects, and advantages of the present application will become more apparent:

[0038] Figure 1 Shows a flowchart of terminal transmission according to an embodiment of the present application;

[0039] Figure 2 Shows a schematic diagram of a network architecture according to an embodiment of the present application;

[0040] Figure 3 Shows a schematic diagram of the radio protocol architecture of the user plane and the control plane according to an embodiment of the present application;

[0041] Figure 4 Shows a schematic diagram of a terminal and an Internet of Things device according to an embodiment of the present application;

[0042] Figure 5 Shows a flowchart of the transmission between a terminal and an Internet of Things device according to an embodiment of the present application;

[0043] Figure 6 Shows a schematic diagram of the number of monitoring and control information bits of different device types according to an embodiment of the present application;

[0044] Figure 7 Shows a schematic diagram of the transmission mode indicated by the L1 control information included in the first PRDCH according to an embodiment of the present application;

[0045] Figure 8 Shows a schematic diagram of the device type indicating the receiver of the first PRDCH according to an embodiment of the present application;

[0046] Figure 9Shows a schematic diagram of the first PRDCH and the first PDRCH relationship according to an embodiment of the present application;

[0047] Figure 10 Shows a schematic diagram of the relationship between the control sub-signal and the data sub-signal according to an embodiment of the present application;

[0048] Figure 11 Shows a schematic diagram of the target power value according to an embodiment of the present application;

[0049] Figure 12 Shows a structural block diagram of a processing device in a terminal according to an embodiment of the present application;

[0050] Figure 13 Shows a structural block diagram of a processing device in an Internet of Things device according to an embodiment of the present application;

[0051] Figure 14 Shows a schematic diagram of the structure of an A-IoT device according to an embodiment of the present application. Detailed implementation manners

[0052] The technical solutions of the present application will be further described in detail below with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

[0053] Example 1

[0054] Embodiment 1 exemplifies a flowchart 100 of terminal transmission according to an embodiment of the present application, as shown in the accompanying Figure 1 figures. In the accompanying Figure 1 figures, each box represents a step. It should be emphasized in particular that the order of the boxes in the figure does not limit the temporal sequence between the represented steps.

[0055] In Embodiment 1, the terminal in the present application transmits a first PRDCH in step 101. The first PRDCH uses OOK. The first PRDCH includes L1 control information. The candidate formats of the L1 control information included in the first PRDCH include at least a first format and a second format. The first format and the second format are respectively for different device types of the receivers of the first PRDCH. The number of control information bits included in the first format and the number of control information bits included in the second format are different. Only the L1 control information of the second format among the first format and the second format includes device type information.

[0056] As an embodiment, the receiver of the first PRDCH is an Internet of Things device (IoT device) in the present application.

[0057] As an example, the receiver of the first PRDCH is an RFID (Radio Frequency Identification) device.

[0058] As an example, the receiver of the first PRDCH is an Ambient IoT device.

[0059] As an example, the first PRDCH is a baseband signal or a radio frequency signal of a PRDCH (Physical Reader to Device Channel).

[0060] As an example, the first PRDCH is transmitted on a physical channel from a reader to an IoT device.

[0061] As an example, the first PRDCH carries physical layer control information.

[0062] As an example, the first PRDCH carries physical layer control information and high layer control information.

[0063] As an example, the first PRDCH includes a preamble.

[0064] As an example, the first PRDCH does not include a preamble.

[0065] As an example, the first PRDCH carries all or part of the bits in a TB (transport block).

[0066] As an example, all or part of the bits in a TB are used to generate the first PRDCH.

[0067] As an example, "the first PRDCH uses OOK" includes: the first PRDCH is a signal including only high and low levels.

[0068] As an example, "the first PRDCH uses OOK" includes: the modulation method of the first PRDCH includes OOK.

[0069] As an example, "the first PRDCH uses OOK" includes: the generation process of the first PRDCH includes OOK.

[0070] As an example, "the first PRDCH uses OOK" includes: the coding method of the first PRDCH includes OOK.

[0071] As an example, "the first PRDCH uses OOK" includes: OOK is used for the waveform of the first PRDCH.

[0072] As an example, "the first PRDCH uses OOK" includes: the input sequence for the transform precoding of the first PRDCH is a bit sequence.

[0073] As an example, "the first PRDCH uses OOK" includes: the input sequence for the transform precoding of the first PRDCH is not a complex-valued sequence.

[0074] As an example, "the first PRDCH uses OOK" includes: the input sequence for the transform precoding of the first PRDCH is an On / Off sequence.

[0075] As an example, "the first PRDCH uses OOK" includes: the input sequence for the transform precoding of the first PRDCH is a high / low level sequence.

[0076] As an example, the input sequence for the transform precoding of the first PRDCH is a linearly encoded bit sequence.

[0077] As an example, the input sequence for the transform precoding of the first PRDCH is a Manchester-encoded bit sequence.

[0078] As an example, the transform precoding for the first PRDCH includes DFT (Discrete Fourier Transform).

[0079] As an example, the transform precoding for the first PRDCH includes FFT (Fast Fourier Transform).

[0080] As an example, the number of RBs (resource blocks) occupied by the first PRDCH in the frequency domain is equal to where α2, α3, and α5 are all non-negative integers.

[0081] As an example, the first PRDCH is a high / low level signal or an On / Off signal.

[0082] As an embodiment, the first PRDCH is generated by at least one of attaching Cyclic Redundancy Check (CRC) to information bits, linear coding, and generating OOK based on OFDM.

[0083] As an embodiment, the L1 control information included in the first PRDCH is control information of the physical layer.

[0084] As an embodiment, the L1 control information included in the first PRDCH is Reader to Device Control Information (RDCI).

[0085] As an embodiment, the number of L1 control information bits included in the first PRDCH is a positive integer.

[0086] As an embodiment, the number of L1 control information bits included in the first PRDCH is per L1 control information format.

[0087] As an embodiment, the time domain resources to which the L1 control information bits included in the first PRDCH are mapped are earlier than the time domain resources to which the data information bits included in the first PRDCH are mapped.

[0088] As an embodiment, the L1 control information included in the first PRDCH includes the scheduling information of the first PRDCH.

[0089] As an embodiment, the L1 control information included in the first PRDCH indicates the duration of the first PRDCH.

[0090] As an embodiment, the L1 control information included in the first PRDCH indicates the data information bits included in the first PRDCH.

[0091] As an embodiment, the L1 control information included in the first PRDCH indicates at least one of the number of OOK time units included in the OFDM symbol carrying the TB or the length of each OOK time unit included.

[0092] As an embodiment, the L1 control information included in the first PRDCH indicates the size of the TB carried by the first PRDCH.

[0093] As an embodiment, the time-domain resources to which the L1 control information included in the first PRDCH and the data information included in the first PRDCH are respectively mapped are orthogonal in the time domain.

[0094] As an embodiment, the L1 control information included in the first PRDCH and the data information included in the first PRDCH are continuous in the time domain. As a subsidiary embodiment of this embodiment, the advantage of doing so is to reduce the latency.

[0095] As an embodiment, the L1 control information included in the first PRDCH and the data information included in the first PRDCH are discontinuous in the time domain. As a subsidiary embodiment of this embodiment, the advantage of doing so is to allow the device to have sufficient processing time and reduce the implementation complexity.

[0096] As an embodiment, the L1 control information included in the first PRDCH is independently attached with CRC to the TB carried by the first PRDCH.

[0097] As an embodiment, the L1 control information included in the first PRDCH and the TB carried by the first PRDCH jointly generate a CRC.

[0098] As an embodiment, "the first PRDCH includes L1 control information" includes: the first PRDCH includes control information of the physical layer.

[0099] As an embodiment, "the first PRDCH includes L1 control information" includes: the first PRDCH carries L1 (layer 1) control information.

[0100] As an embodiment, "the first PRDCH includes L1 control information" includes: the first PRDCH includes L1 (layer 1) control information in at least one format.

[0101] As an embodiment, "the first PRDCH includes L1 control information" includes: the first PRDCH includes at least one L1 (layer 1) control information bit.

[0102] As an embodiment, "the first PRDCH includes L1 control information" includes: the first PRDCH includes a plurality of L1 (layer 1) control information bits.

[0103] As an embodiment, "the first PRDCH includes L1 control information" includes: at least one L1 control information bit is used to generate the first PRDCH.

[0104] As an example, "the first PRDCH includes L1 control information" includes: at least one L1 control information bit is mapped to the first PRDCH.

[0105] As an example, "the first PRDCH includes L1 control information" includes: at least one L1 control information bit is mapped to the first PRDCH.

[0106] As an example, "the first PRDCH includes L1 control information" includes: at least one L1 control information bit is mapped to the time domain resources occupied by the first PRDCH.

[0107] As an example, "the first PRDCH includes L1 control information" includes: the first PRDCH carries RDCI.

[0108] As an example, "the candidate formats of the L1 control information included in the first PRDCH at least include a first format and a second format" includes: the candidate formats of the L1 control information included in the first PRDCH only include the first format and the second format.

[0109] As an example, "the candidate formats of the L1 control information included in the first PRDCH at least include a first format and a second format" includes: the first format and the second format are candidate formats (formats) of the L1 control information included in the first PRDCH.

[0110] As an example, "the candidate formats of the L1 control information included in the first PRDCH at least include a first format and a second format" includes: the L1 control information included in the first PRDCH is of the first format or of the second format.

[0111] As an example, "the candidate formats of the L1 control information included in the first PRDCH at least include a first format and a second format" includes: the candidate formats of the L1 control information included in the first PRDCH include multiple formats, and the first format and the second format are two of them.

[0112] As an example, "the candidate formats of the L1 control information included in the first PRDCH at least include a first format and a second format" includes: the candidate formats of the L1 control information included in the first PRDCH further include other formats other than the first format and the second format.

[0113] As an example, the candidate formats of the L1 control information included in the first PRDCH are the formats that the L1 control information included in the first PRDCH may adopt.

[0114] As an example, the candidate formats of the L1 control information included in the first PRDCH are the possible definitions and orders of all fields in the L1 control information included in the first PRDCH.

[0115] As an example, the first format is an RDCI format.

[0116] As an example, the first format is a basic L1 control information format.

[0117] As an example, the first format is a Fallback L1 control information format.

[0118] As an example, the first format is the L1 control information format for the Internet of Things device 1 defined in 3GPP TR38.769.

[0119] As an example, the L1 control information of the first format only includes the scheduling information of the first PRDCH. As a sub - example of this example, the advantage of doing so is to save overhead.

[0120] As an example, the first format is applicable to all device types of the Internet of Things devices in this application.

[0121] As an example, the Internet of Things device 1 defined in 3GPP TR38.769 at least supports monitoring the size of the L1 control information of the first format.

[0122] As an example, the receiver of the first PRDCH at least supports monitoring the L1 control information of the first format.

[0123] As an example, the receiver of the first PRDCH at least supports monitoring the size of the L1 control information of the first format.

[0124] As an example, the second format is an RDCI format.

[0125] As an example, the second format is an enhanced L1 control information format.

[0126] As an example, the second format is the L1 control information format for the Internet of Things device 2a defined in 3GPP TR38.769.

[0127] As an example, the second format is the L1 control information format for the Internet of Things device 2b defined in 3GPP TR38.769.

[0128] As an example, the second format is for the Internet of Things device C defined in 3GPP TR38.848.

[0129] As an example, only some of the Internet of Things devices in this application support the L1 control information in the second format.

[0130] As an example, the Internet of Things device 1 defined in GPP TR38.769 cannot decode the L1 control information in the second format.

[0131] As an example, the Internet of Things device 1 defined in GPP TR38.769 cannot monitor the size of the L1 control information in the second format.

[0132] As an example, the L1 control information in the second format includes all the fields included in the L1 control information in the first format.

[0133] As an example, the fields included in the L1 control information in the first format are a subset of the fields included in the L1 control information in the second format.

[0134] As an example, if the number of bits of the L1 control information in the first format or the second format is less than X, padding bits are added until the payload size is equal to X, where X is a positive integer.

[0135] As an example, when the number of bits of the L1 control information in the first format is equal to the number of bits of the L1 control information in the second format, at least 1 padding bit is added to the bits of the L1 control information in the second format so that the number of bits of the L1 control information in the second format is greater than the number of bits of the L1 control information in the first format.

[0136] As a sub - example of this example, the padding bits can be data information bits.

[0137] As a sub - example of this example, the padding bits can be repetitions of the L1 control information bits.

[0138] As an example, the receiver of the first PRDCH can only decode the L1 control information in the format corresponding to the device type of the receiver of the first PRDCH.

[0139] As an example, the receiver of the PRDCH of the Internet of Things device 1 defined in 3GPP TR38.769 can only decode the L1 control information in the format corresponding to type 1.

[0140] As an example, the receiver of the PRDCH of the Internet of Things device 1 defined in 3GPP TR38.769 can only decode the L1 control information in the first format.

[0141] As an example, "the first format and the second format respectively target different device types of the receivers of the first PRDCH" includes: the first format targets the device type of the receiver of the first PRDCH with lower device complexity, and the second format targets the device type of the receiver of the first PRDCH with higher device complexity.

[0142] As an example, "the first format and the second format respectively target different device types of the receivers of the first PRDCH" includes: the first format targets the device type of the receiver of the first PRDCH with lower device capabilities, and the second format targets the device type of the receiver of the first PRDCH with higher device capabilities.

[0143] As an example, "the first format and the second format respectively target different device types of the receivers of the first PRDCH" includes: the first format targets the device type of the receiver of the first PRDCH whose uplink transmission is backscattering, and the second format targets the device type of the receiver of the first PRDCH whose uplink transmission is internally generated by the device.

[0144] As an example, "the first format and the second format respectively target different device types of the receivers of the first PRDCH" includes: the first format is for the Internet of Things device 1 defined in 3GPP TR38.769, and the second format is for at least one of the Internet of Things devices 2a or 2b defined in 3GPP TR38.769.

[0145] As an example, "the first format and the second format respectively target different device types of the receivers of the first PRDCH" includes: the first format is applicable to all device types, and the second format is for at least one of the Internet of Things devices 2a or 2b defined in 3GPP TR38.769.

[0146] As an example, "the first format and the second format respectively target different device types of the receivers of the first PRDCH" includes: the first format is for the Internet of Things device A or the Internet of Things device B defined in 3GPP TR38.848, and the second format is for the Internet of Things device C defined in 3GPP TR38.848.

[0147] As an example, the candidate formats of the L1 control information included in the first PRDCH further include a third format. The third format has the same control information size as the second format. The IoT device in the present application differentiates between the second format and the third format through the first X bits of the L1 control information included in the first PRDCH, where X is a positive integer. As a sub - example of this example, the two formats have the same size, reducing the number of blind detections and improving performance.

[0148] As an example, the candidate formats of the L1 control information included in the first PRDCH further include a third format. The third format is different from the control information sizes of both the second format and the first format. The IoT device 2a defined in 3GPP TR38.769 can monitor the control information sizes of the first format and the second format, and the IoT device 2b defined in 3GPP TR38.769 can monitor the control information sizes of the first format and the third format. As a sub - example of this example, using control information with different sizes is more flexible.

[0149] As an example, the device type of the receiver of the first PRDCH is the same as the device type of the IoT device in the present application.

[0150] As an example, the device type of the receiver of the first PRDCH in the present application is equivalent to or can be used interchangeably with the device type of the IoT device in the present application.

[0151] As an example, the device type of the receiver of the first PRDCH includes one of the devices 1, 2a, and 2b defined in 3GPP TR38.769.

[0152] As an example, the device type of the receiver of the first PRDCH includes one of the devices A, B, and C defined in 3GPP TR38.848.

[0153] As an example, the device type of the receiver of the first PRDCH is divided according to at least one of power consumption, the presence of an amplifier, and whether backscattering is used.

[0154] As an example, the device type of the receiver of the first PRDCH is divided according to the complexity of the device.

[0155] As an example, the device type of the receiver of the first PRDCH is divided according to the capabilities of the device.

[0156] As an example, the device type of the receiver of the first PRDCH is divided according to whether there is a power amplifier.

[0157] As an example, the device type of the receiver of the first PRDCH is divided according to whether there is a battery or the battery capacity.

[0158] As an example, the device type of the receiver of the first PRDCH is divided according to the device receiver sensitivity.

[0159] As an example, the device type of the receiver of the first PRDCH is divided according to whether the uplink transmission is generated inside the device or backscattering.

[0160] As an example, the device type of the receiver of the first PRDCH depends on the indication of the core network.

[0161] As an example, the device type of the receiver of the first PRDCH depends on the indication of the signaling of the core network device.

[0162] As an example, the device type of the receiver of the first PRDCH is indicated by the core network.

[0163] As an example, the core network indicates the device type of the receiver of the first PRDCH with which the terminal is to communicate.

[0164] As an example, the core network indicates the device type of the receiver of the first PRDCH according to the currently provided service.

[0165] As an example, after obtaining the device type of the Internet of Things device according to the identifier of the Internet of Things device related to the current service, the core network indicates the device type of the receiver of the first PRDCH to the terminal.

[0166] As an example, the device type of the receiver of the first PRDCH is indicated by NAS.

[0167] As an example, the device type of the receiver of the first PRDCH is indicated through NAS.

[0168] As an example, "the number of control information bits included in the first format and the number of control information bits included in the second format are different" includes: the number of control information bits included in the first format is not equal to the number of control information bits included in the second format.

[0169] As an example, "the number of control information bits included in the first format and the number of control information bits included in the second format are different" includes: the control information sizes of the first format and the second format are different.

[0170] As an example, "the number of control information bits included in the first format and the number of control information bits included in the second format are different" includes: the number of control information bits included in the second format is more than the number of control information bits included in the first format.

[0171] As an example, "the number of control information bits included in the first format and the number of control information bits included in the second format are different" includes: the size of the control information of the second format is larger than the size of the control information of the first format.

[0172] As an example, the network side ensures that the number of control information bits included in the first format and the number of control information bits included in the second format are not equal.

[0173] As an example, "only the L1 control information of the second format among the first format and the second format includes device type information" includes: the L1 control information of the first format does not include device type information, and the L1 control information of the second format includes device type information.

[0174] As an example, "only the L1 control information of the second format among the first format and the second format includes device type information" includes: the L1 control information of the first format does not include a field indicating the device type, and the L1 control information of the second format includes a field indicating the device type.

[0175] As an example, "only the L1 control information of the second format among the first format and the second format includes device type information" includes: the L1 control information of the first format does not include device type information, and the CRC of the L1 control information of the second format is scrambled by an RNTI (Radio Network Temporary Indentifier) related to the device type.

[0176] As an example, "only the L1 control information of the second format among the first format and the second format includes device type information" includes: the L1 control information of the first format only includes the scheduling information of the first PRDCH, and the L1 control information of the second format includes the scheduling information of the first PRDCH and device type information.

[0177] As an example, "only the L1 control information of the second format among the first format and the second format includes device type information" includes: the L1 control information of the second format indicates the device type of the receiver of the first PRDCH.

[0178] As an example, "only the L1 control information of the second format among the first format and the second format includes device type information" includes: at least one field included in the L1 control information of the second format explicitly or implicitly indicates the device type.

[0179] As an example, "only the L1 control information of the second format among the first format and the second format includes device type information" includes: at least one field included in the L1 control information of the second format explicitly or implicitly indicates the device type of the receiver of the first PRDCH.

[0180] As an example, "only the L1 control information of the second format among the first format and the second format includes device type information" includes: one field included in the L1 control information of the second format indicates the device type of the receiver of the first PRDCH.

[0181] As an example, "only the L1 control information of the second format among the first format and the second format includes device type information" includes: the L1 control information of the second format includes a field related to the device type.

[0182] As an example, "only the L1 control information of the second format among the first format and the second format includes device type information" includes: one field included in the L1 control information of the second format indicates that the receiver of the first PRDCH is Internet of Things Device 1 (device 1), Internet of Things Device 2a (device 2a), or Internet of Things Device 2b (device 2b) defined in 3GPP TR38.769.

[0183] As an example, "only the L1 control information of the second format among the first format and the second format includes device type information" includes: one field included in the L1 control information of the second format indicates that the receiver of the first PRDCH is Internet of Things Device A (deviceA), Internet of Things Device B (device B), or Internet of Things Device C (device C) defined in 3GPP TR38.848.

[0184] As an example, "only the L1 control information of the second format among the first format and the second format includes device type information" includes: a field included in the L1 control information of the second format indicates the identifier (ID) of the receiver of the first PRDCH.

[0185] As an example, "only the L1 control information of the second format among the first format and the second format includes device type information" includes: a field included in the L1 control information of the second format indicates the group identifier of the receiver of the first PRDCH.

[0186] As an example, "only the L1 control information of the second format among the first format and the second format includes device type information" includes: a field included in the L1 control information of the second format indicates the identifier (ID) of the receiver of the first PRDCH, and different device types respectively correspond to different identifier (ID) ranges.

[0187] Example 2

[0188] Example 2 exemplifies a schematic diagram of a network architecture according to the present application, as shown in the appendix. Figure 2 shown. Appendix Figure 2A diagram showing the network architecture 200 of 5G NR, LTE (Long-Term Evolution), and LTE-A (Long-Term Evolution Advanced) systems. The 5G NR or LTE network architecture 200 may be referred to as 5GS (5G System) / EPS (Evolved Packet System) 200 or some other suitable term. The 5GS / EPS 200 may include one or more UEs (User Equipment) 201, NG-RAN (Next Generation Radio Access Network) 202, 5GC (5G Core Network) / EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet services 230. The 5GS / EPS may be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. As shown, the 5GS / EPS provides packet-switched services. However, those skilled in the art will readily understand that the various concepts presented throughout this application can be extended to networks providing circuit-switched services or other cellular networks. The NG-RAN includes NR / evolved Node B (gNB / eNB) 203 and other gNBs (eNBs) 204. The gNB (eNB) 203 provides user and control plane protocol termination towards the UE 201. The gNB (eNB) 203 may be connected to other gNBs (eNBs) 204 via the Xn / X2 interface (e.g., backhaul). The gNB (eNB) 203 may also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, basic service set (BSS), extended service set (ESS), TRP (Transmission and Reception Point), or some other suitable term. The gNB (eNB) 203 provides an access point for the UE 201 to the 5GC / EPC 210. Examples of the UE 201 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, non-terrestrial base station communications, satellite mobile communications, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband Internet of Things devices, machine type communication devices, land vehicles, automobiles, wearable devices, test equipment, test meters, test tools, or any other similar functional devices.A person skilled in the art may also refer to the UE 201 as a mobile station, subscriber station, mobile unit, subscriber unit, radio unit, remote unit, mobile device, radio device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable term. The gNB (eNB) 203 is connected to the 5GC / EPC 210 through the S1 / NG interface. The 5GC / EPC 210 includes an MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MME / AMF / SMF 214, an S-GW (Service Gateway) / UPF (User Plane Function) 212, and a P-GW (Packet Date Network Gateway) / UPF 213. The MME / AMF / SMF 211 is a control node that processes the signaling between the UE 201 and the 5GC / EPC 210. Generally, the MME / AMF / SMF 211 provides bearer and connection management. All user IP (Internet Protocal) packets are transmitted through the S-GW / UPF 212, which is itself connected to the P-GW / UPF 213. The P-GW provides UE IP address allocation and other functions. The P-GW / UPF 213 is connected to the Internet service 230. The Internet service 230 includes operator-corresponding Internet protocol services, specifically including the Internet, intranet, IMS (IP Multimedia Subsystem), and packet-switched streaming services.

[0189] As an embodiment, the UE 201 corresponds to the device of the terminal in this application.

[0190] As an embodiment, the UE 201 supports OOK.

[0191] As an embodiment, the Device 241 corresponds to the Internet of Things device in this application.

[0192] Example 3

[0193] Embodiment 3 shows a schematic diagram of the radio protocol architecture of the user plane and the control plane according to an embodiment of the present application, as shown in the appendix Figure 3 as shown. Figure 3It is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, Figure 3The radio protocol architecture of the control plane 300 for terminals, base stations, and Internet of Things (IoT) devices is presented using three layers: Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (Physical Layer) signal processing functions. Layer 1 will be referred to as PHY 301 in this text. Layer 2 (L2 layer) 305 is above PHY 301 and is responsible for the link between the terminal and the base station through PHY 301. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, and these sublayers terminate at the base station or IoT device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets, and provides handover support for terminals between base stations and mobility support for terminal devices between IoT devices. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in a cell among terminals. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3 layer) of the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the base station and the terminal. The radio protocol architecture of the user plane 350 includes Layer 1 (L1 layer) and Layer 2 (L2 layer). In the user plane 350, the radio protocol architecture for terminals, base stations, and IoT devices is generally the same as the corresponding layers and sublayers in the control plane 300 for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 also includes an SDAP (Service Data Adaptation Protocol) sublayer 356, and the SDAP sublayer 356 is responsible for mapping between QoS flows and data radio bearers (DRBs) to support service diversity.Although not shown, the terminal may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., a remote UE, a server, etc.).

[0194] As an example, the Figure 3 wireless protocol architecture in [attached figure] is applicable to the terminal in this application.

[0195] As an example, the Figure 3 wireless protocol architecture in [attached figure] is applicable to the Internet of Things device in this application.

[0196] As an example, the first PRDCH in this application is generated by the MAC302, or MAC352, or the PHY301, or PHY351.

[0197] As an example, the first PDRCH in this application is generated by the MAC302, or MAC352, or the PHY301, or PHY351.

[0198] Example 4

[0199] Example 4 shows a schematic diagram of a terminal and an Internet of Things device according to an embodiment of this application, as shown in [attached figure] Figure 4 shown.

[0200] The terminal (410) may include a controller / processor 440, a memory 430, a receiving processor 412, a transmitter / receiver 416, and a transmitting processor 415. The transmitter / receiver 416 includes an antenna 420.

[0201] The Internet of Things device (450) may include a controller / processor 490 (if supported), a memory 480, a receiving processor 452, a transmitter / receiver 456, and a transmitting processor 455. The transmitter / receiver 456 includes an antenna 460.

[0202] In the transmission from the terminal to the Internet of Things device, the upper layer packet is provided to the controller / processor 440. The controller / processor 440 implements the functions of the L2 layer and above. The controller / processor 440 provides packet header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation based on various priority metrics. The controller / processor 440 is also responsible for HARQ operations, retransmission of lost packets (if supported), and high layer signaling to the Internet of Things device 450. The high layer information carried by the first PRDCH in this application is generated by the controller / processor 440. The transmit processor 415 implements various signal processing functions for the L1 layer (i.e., the physical layer), including coding, interleaving, scrambling, modulation, power control / assignment, precoding, and generation of physical layer control signaling, etc. For example, the first PRDCH in this application is completed by the transmit processor 415. The generated modulation symbols are divided into parallel streams and each stream is mapped to the corresponding multi-carrier sub-carrier and / or multi-carrier symbol, and then mapped by the transmit processor 415 to the antenna 420 via the transmitter 416 and transmitted in the form of a radio frequency signal. At the receiving end, each receiver 456 receives the radio frequency signal through its corresponding antenna 460. Each receiver 456 recovers the baseband information modulated onto the radio frequency carrier (if baseband processing is supported), and provides the baseband information to the receive processor 452. The receive processor 452 implements various signal reception processing functions of the L1 layer. The signal reception processing functions include receiving the first PRDCH in this application, performing demodulation based on various modulation schemes (e.g., on-off keying (OOK), binary phase shift keying (BPSK)), subsequent descrambling, decoding, and deinterleaving (if supported) to recover the data or control transmitted by the terminal 410 on the physical channel, and then providing the data and control signals to the controller / processor 490 (if the Internet of Things device supports it). The controller / processor 490 is responsible for the L2 layer and above. The controller / processor 490 interprets the high layer information, including interpreting the high layer information carried by the first PRDCH in this application. The controller / processor may be associated with a memory 480 that stores program code and data. The memory 480 may be referred to as a computer-readable medium.

[0203] In the transmission from the Internet of Things device to the terminal, similar to the transmission from the terminal to the Internet of Things device, after the high-layer information carried by the first PDRCH is generated by the controller / processor 490 (if the Internet of Things device supports it), various signal transmission processing functions for the L1 layer (i.e., the physical layer) are implemented by the transmitting processor 455. The transmitting processor 455 includes mapping the physical layer signal of the first PDRCH to the antenna 460 via the transmitter 456 and transmitting it in the form of a radio frequency signal. The receiver 416 receives the radio frequency signal through its corresponding antenna 420. Each receiver 416 recovers the baseband information modulated onto the radio frequency carrier and provides the baseband information to the receiving processor 412. The receiving processor 412 implements various signal reception processing functions for the L1 layer (i.e., the physical layer), and then provides data and / or control signals to the controller / processor 440. Implementing the functions of the L2 layer in the controller / processor 440 includes interpreting the high-layer information. The controller / processor can be associated with a memory 430 that stores program code and data. The memory 430 can be a computer-readable medium.

[0204] As an embodiment, the terminal 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor, and the terminal at least: transmits a first PRDCH, the first PRDCH using OOK; wherein, the first PRDCH includes L1 control information, and the candidate formats of the L1 control information included in the first PRDCH at least include a first format and a second format, the first format and the second format respectively corresponding to different device types of the receivers of the first PRDCH, the number of control information bits included in the first format and the number of control information bits included in the second format are different, and only the L1 control information of the second format among the first format and the second format includes device type information.

[0205] As an embodiment, the terminal 410 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generating actions when executed by at least one processor, the actions including: transmitting a first PRDCH, the first PRDCH using OOK; wherein, the first PRDCH includes L1 control information, and the candidate formats of the L1 control information included in the first PRDCH at least include a first format and a second format, the first format and the second format respectively corresponding to different device types of the receivers of the first PRDCH, the number of control information bits included in the first format and the number of control information bits included in the second format are different, and only the L1 control information of the second format among the first format and the second format includes device type information.

[0206] As an embodiment, the Internet of Things device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The Internet of Things device 450 at least: receives a first PRDCH, the first PRDCH using OOK; wherein, the first PRDCH includes L1 control information, candidate formats of the L1 control information included in the first PRDCH at least include a first format and a second format, the first format and the second format are respectively for different device types of the Internet of Things devices, the number of control information bits included in the first format and the number of control information bits included in the second format are different, and only the L1 control information of the second format among the first format and the second format includes device type information.

[0207] As an embodiment, the Internet of Things device 450 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generating actions when executed by at least one processor, the actions including: receiving a first PRDCH, the first PRDCH using OOK; wherein, the first PRDCH includes L1 control information, candidate formats of the L1 control information included in the first PRDCH at least include a first format and a second format, the first format and the second format are respectively for different device types of the Internet of Things devices, the number of control information bits included in the first format and the number of control information bits included in the second format are different, and only the L1 control information of the second format among the first format and the second format includes device type information.

[0208] As an embodiment, the terminal 410 is a user equipment (UE).

[0209] As an embodiment, the Internet of Things device 450 is a device of the Internet of Environmental Things.

[0210] As an embodiment, the Internet of Things device 450 is an RFID device.

[0211] As an embodiment, the transmitter 416 (including the antenna 420), the transmit processor 415, and the controller / processor 440 are used to transmit the first PRDCH in the present application.

[0212] As an embodiment, the receiver 416 (including the antenna 420), the receive processor 412, and the controller / processor 440 are used to receive the first PDRCH in the present application.

[0213] As an example, the receiver 456 (including the antenna 460), the receiving processor 452, and the controller / processor 490 are used to receive the first PRDCH in the present application.

[0214] As an example, the transmitter 456 (including the antenna 460), the transmitting processor 452, and the controller / processor 490 are used to transmit the first PDRCH in the present application.

[0215] Example 5

[0216] Example 5 exemplifies the flowchart of transmission by a terminal and an Internet of Things device according to an embodiment of the present application, as shown in the appendix. Figure 5 shown. In the appendix Figure 5 In it, the terminal U550 is a reader device of the Internet of Things device D500. It should be specifically noted that the order in this example does not limit the signal transmission order and the implementation order in the present application.

[0217] For Terminal U550 , the first PRDCH is sent in step S551, and the first PDRCH is received in step S552;

[0218] For IoT Device D500 , the first PRDCH is received in step S501, and the first PDRCH is sent in step S502.

[0219] In Example 5, the terminal sends the first PRDCH, and the first PRDCH uses OOK; wherein, the first PRDCH includes L1 control information, and the candidate formats of the L1 control information included in the first PRDCH at least include a first format and a second format. The first format and the second format are respectively for different device types of the receivers of the first PRDCH. The number of control information bits included in the first format and the number of control information bits included in the second format are different. Only the L1 control information of the second format among the first format and the second format includes device type information. The terminal receives the first PDRCH; wherein, when the L1 control information included in the first PRDCH uses the first format, a field in a MAC layer included in the first PRDCH indicates the number of chips occupied by the first PDRCH; when the L1 control information included in the first PRDCH uses the first format, a field of the L1 control information included in the first PRDCH indicates the number of chips occupied by the first PDRCH, and the chips include at least one of an OOK time unit and a BPSK time unit.

[0220] Example 6

[0221] Example 6 illustrates a schematic diagram of monitoring the number of control information bits for different device types according to an embodiment of the present application, as shown in the appendix Figure 6 as shown. In the appendix Figure 6 , the dashed arrows indicate the monitoring relationship. Devices of type 1 monitor the number of control information bits corresponding to the first format, and devices of type 2a or type 2b monitor the number of control information bits corresponding to the first format and the number of control information bits corresponding to the second format.

[0222] In Example 6, the device types include at least one of type 1, type 2a, and type 2b. The Internet of Things (IoT) devices of type 1 monitor the number of control information bits corresponding to the first format, and at least one of the IoT devices of type 2a or the IoT devices of type 2b monitors the number of control information bits corresponding to the first format and the number of control information bits corresponding to the second format.

[0223] As an embodiment, considering that the IoT devices of type 2a or type 2b have higher complexity compared to the IoT devices of type 1, type 2a or type 2b monitor the number of control information bits in more formats, which improves flexibility and maximizes the utilization of the performance of type 2a or type 2b.

[0224] As an embodiment, the device types are the device types of the IoT devices in the present application.

[0225] As an embodiment, the device types also include other device types other than type 1, type 2a, and type 2b.

[0226] As an embodiment, type 1 is the A-IoT device 1 defined in 3GPP TR38.769.

[0227] As an embodiment, type 2a is the A-IoT device 2a defined in 3GPP TR38.769.

[0228] As an embodiment, type 2b is the A-IoT device 2b defined in 3GPP TR38.769.

[0229] As an embodiment, type 1 has a peak power consumption of approximately 1 μW, has energy storage, and an initial sampling frequency offset (SFO) of up to 10 XA-IoT device with ppm (Parts per million), without power amplification for uplink or downlink, and the uplink transmission of the device is backscattered through an externally provided carrier.

[0230] As an example, the type 2a has a peak power consumption less than or equal to 100 μW, has energy storage, and an initial sampling frequency offset (SFO) of at most 10 X A-IoT device with ppm (Parts per million), with power amplification for uplink and downlink, and the uplink transmission of the device is backscattered through an externally provided carrier.

[0231] As an example, the type 2b has a peak power consumption less than or equal to 100 μW, has energy storage, and an initial sampling frequency offset (SFO) of at most 10 X A-IoT device with ppm (Parts per million), with power amplification for uplink and downlink, and the uplink transmission of the device is generated internally by the device.

[0232] As an example, the monitoring decodes the control information for a format.

[0233] As an example, the monitoring performs blind detection on the control information for a format.

[0234] As an example, "the IoT device of type 1 monitors the number of control information bits corresponding to the first format" includes: the IoT device of type 1 decodes the L1 control information included in the first PRDCH according to the number of control information bits corresponding to the first format.

[0235] As an example, "the IoT device of type 1 monitors the number of control information bits corresponding to the first format" includes: the IoT device of type 1 can decode the L1 control information of the first format.

[0236] As an example, "the IoT device of type 1 monitors the number of bits of control information corresponding to the first format" includes: the IoT device of type 1 starts decoding the control information after receiving the first X bits of the PRDCH, where X is the number of bits of control information corresponding to the first format.

[0237] As an example, "the IoT device of type 1 monitors the number of bits of control information corresponding to the first format" includes: the IoT device of type 1 starts decoding the control information after receiving the first X bits of the PRDCH, where X is the total number of bits of control information corresponding to the first format after attaching CRC.

[0238] As an example, "the IoT device of type 1 monitors the number of bits of control information corresponding to the first format" includes: the IoT device of type 1 starts decoding the control information after receiving the first 2X OOK chips of the PRDCH, where X is the number of bits of control information corresponding to the first format.

[0239] As an example, "the IoT device of type 1 monitors the number of bits of control information corresponding to the first format" includes: the IoT device of type 1 starts decoding the control information after receiving the first 2X OOK chips of the PRDCH, where X is the total number of bits of control information corresponding to the first format after attaching CRC.

[0240] As an example, "the IoT device of type 1 monitors the number of bits of control information corresponding to the first format" includes: the IoT device of type 1 only monitors one L1 control information size.

[0241] As an example, "the IoT device of type 1 monitors the number of bits of control information corresponding to the first format" includes: the IoT device of type 1 only monitors one RDCI size.

[0242] As an example, the IoT device of type 1 only monitors one L1 control information size, and at least one of the IoT devices of type 2a or type 2b can monitor at least two L1 control information sizes.

[0243] As an example, "at least one of the IoT devices of type 2a or the IoT devices of type 2b monitors the number of control information bits corresponding to the first format and the number of control information bits corresponding to the second format" includes: The IoT device of type 2a monitors the number of control information bits corresponding to the first format and the number of control information bits corresponding to the second format.

[0244] As an example, "at least one of the IoT devices of type 2a or the IoT devices of type 2b monitors the number of control information bits corresponding to the first format and the number of control information bits corresponding to the second format" includes: The IoT device of type 2b monitors the number of control information bits corresponding to the first format and the number of control information bits corresponding to the second format.

[0245] As an example, "at least one of the IoT devices of type 2a or the IoT devices of type 2b monitors the number of control information bits corresponding to the first format and the number of control information bits corresponding to the second format" includes: The IoT device of type 2a and the IoT device of type 2b monitor the number of control information bits corresponding to the first format and the number of control information bits corresponding to the second format.

[0246] As an example, "at least one of the IoT devices of type 2a or the IoT devices of type 2b monitors the number of control information bits corresponding to the first format and the number of control information bits corresponding to the second format" includes: At least one of the IoT devices of type 2a or the IoT devices of type 2b monitors the size of the control information bits corresponding to the first format and the size of the control information bits corresponding to the second format.

[0247] As an example, "at least one of the IoT devices of type 2a or the IoT devices of type 2b monitors the number of control information bits corresponding to the first format and the number of control information bits corresponding to the second format" includes: At least one of the IoT devices of type 2a or the IoT devices of type 2b monitors two control information sizes.

[0248] As an example, "at least one of the Internet of Things devices of type 2a or the Internet of Things devices of type 2b monitors the number of control information bits corresponding to the first format and the number of control information bits corresponding to the second format" includes: at least one of the Internet of Things devices of type 2a or the Internet of Things devices of type 2b first decodes the control information according to the number of control information bits corresponding to the first format, and when it cannot be correctly decoded, then decodes the control information according to the number of control information bits corresponding to the second format.

[0249] As an example, "at least one of the Internet of Things devices of type 2a or the Internet of Things devices of type 2b monitors the number of control information bits corresponding to the first format and the number of control information bits corresponding to the second format" includes: at least one of the Internet of Things devices of type 2a or the Internet of Things devices of type 2b first decodes the control information according to the number of control information bits corresponding to the second format, and when it cannot be correctly decoded, then decodes the control information according to the number of control information bits corresponding to the first format.

[0250] As an example, the size of the L1 control information monitored by the Internet of Things devices of type 2a and the Internet of Things devices of type 2b is not greater than 4.

[0251] As an example, at least one of the Internet of Things devices of type 2a or the Internet of Things devices of type 2b also monitors the size corresponding to the L1 control information in other formats.

[0252] As an example, the Internet of Things device in the present application of type 1 can only decode the L1 control information carried by the first PRDCH according to the number of control information bits corresponding to the first format.

[0253] As an example, the number of bits of the L1 control information for the Internet of Things device in the present application of type 1 is fixed.

[0254] As an example, the format of the L1 control information for the Internet of Things device in the present application of type 1 is unique.

[0255] Example 7

[0256] Embodiment 7 exemplifies a schematic diagram of the L1 control information included in the first PRDCH indicating the transmission mode according to an embodiment of the present application, as shown in the appendix Figure 7 as shown. In the appendix Figure 7Among them, the rectangle enclosed by the thick line frame represents the first PRDCH, the rectangle filled with crosses represents the L1 control information in the second format, the dotted arrow represents the indication relationship, and the L1 control information in the second format indicates the transmission mode.

[0257] In Embodiment 7, the L1 control information included in the first PRDCH adopts the second format, and a field included in the L1 control information included in the first PRDCH indicates the transmission mode, and the transmission mode includes at least one of unicast, multicast, or broadcast; when the transmission mode is indicated as multicast, at least one field included in the L1 control information included in the first PRDCH indicates the group identifier of the multicast.

[0258] As an embodiment, indicating the transmission mode in the L1 control information and indicating the group identifier when the transmission mode is multicast can prevent non-target devices from continuing to decode data information after receiving the PRDCH, enabling non-target devices to end reception in advance, saving the power of Internet of Things devices, and reducing the implementation complexity.

[0259] As an embodiment, "a field included in the L1 control information included in the first PRDCH indicates the transmission mode" includes: a field included in the L1 control information included in the first PRDCH explicitly or implicitly indicates the transmission mode (casttype).

[0260] As an embodiment, "a field included in the L1 control information included in the first PRDCH indicates the transmission mode" includes: the L1 control information included in the first PRDCH includes a transmission mode indicator (casttype indicator) field (field).

[0261] As an embodiment, "a field included in the L1 control information included in the first PRDCH indicates the transmission mode" includes: the transmission mode indicator (cast type indicator) field (field) is a field that constitutes the format of the L1 control information included in the first PRDCH.

[0262] As an embodiment, "a field included in the L1 control information included in the first PRDCH indicates the transmission mode" includes: at least one L1 control information bit included in the first PRDCH indicates the transmission mode.

[0263] As an embodiment, "a field included in the L1 control information included in the first PRDCH indicates the transmission mode" includes: a bit included in the L1 control information included in the first PRDCH indicates the transmission mode (casttype).

[0264] As an example, "a field included in the L1 control information included in the first PRDCH indicates the transmission mode" includes: two bits included in the L1 control information included in the first PRDCH indicate the transmission mode (casttype).

[0265] As an example, "a field included in the L1 control information included in the first PRDCH indicates the transmission mode" includes: two bits included in the L1 control information included in the first PRDCH indicate the transmission mode (casttype), the value "00" represents Broadcast, the value "01" represents Groupcast, and the value "10" represents Unicast.

[0266] As an example, the transmission mode indicated by the L1 control information included in the first PRDCH depends on the configuration or indication of the base station.

[0267] As an example, the transmission mode indicated by the L1 control information included in the first PRDCH is indicated by high layers parameters.

[0268] As an example, "the transmission mode includes at least one of unicast, groupcast, or broadcast" includes: the transmission mode only includes unicast, groupcast, and broadcast.

[0269] As an example, "the transmission mode includes at least one of unicast, groupcast, or broadcast" includes: the transmission mode only includes unicast and broadcast.

[0270] As an example, "the transmission mode includes at least one of unicast, groupcast, or broadcast" includes: the transmission mode only includes groupcast and broadcast.

[0271] As an example, the unicast is that the reader device sends a PRDCH to a specific Internet of Things device in this application.

[0272] As an example, the groupcast is that the reader device sends a PRDCH to a group of Internet of Things devices in this application.

[0273] As an example, the broadcast is that the reader device sends a PRDCH to all Internet of Things devices in the coverage area of this application.

[0274] As an example, the transmission mode being indicated as groupcast includes: the value of the field indicating the transmission mode is the value corresponding to groupcast.

[0275] As an example, the indication that the transmission mode is multicast includes: the L1 control information included in the first PRDCH indicates that the transmission mode is multicast.

[0276] As an example, the indication that the transmission mode is multicast includes: the first PRDCH is sent to a group of Internet of Things devices.

[0277] As an example, "at least one field included in the L1 control information included in the first PRDCH indicates the group identifier of the multicast" includes: at least one field included in the L1 control information included in the first PRDCH explicitly or implicitly indicates the group (group) identifier (IDentity, ID) of the multicast.

[0278] As an example, "at least one field included in the L1 control information included in the first PRDCH indicates the group identifier of the multicast" includes: one field included in the L1 control information included in the first PRDCH indicates the group (group) identifier of the multicast.

[0279] As an example, "at least one field included in the L1 control information included in the first PRDCH indicates the group identifier of the multicast" includes: at least one field included in the L1 control information included in the first PRDCH indicates the group (group) index of the multicast.

[0280] As an example, "at least one field included in the L1 control information included in the first PRDCH indicates the group identifier of the multicast" includes: at least one bit included in the L1 control information included in the first PRDCH indicates the group (group) identifier of the multicast.

[0281] As an example, "at least one field included in the L1 control information included in the first PRDCH indicates the group identifier of the multicast" includes: multiple bits included in the L1 control information included in the first PRDCH indicate the group identifier of the multicast.

[0282] As an example, at least one field included in the L1 control information included in the first PRDCH indicates a first group identifier. After the Internet of Things devices in the present application that do not belong to the first group identifier receive the first PRDCH and decode the first group identifier, they ignore the first PRDCH.

[0283] As an embodiment, at least one field included in the L1 control information included in the first PRDCH indicates a first group of identifiers. After an Internet of Things device in the present application that does not belong to the first group of identifiers receives the first PRDCH and decodes the first group of identifiers, it does not continue to decode the first PRDCH.

[0284] Example 8

[0285] Embodiment 8 exemplifies a schematic diagram of a device type indicating a receiver of a first PRDCH according to an embodiment of the present application, as shown in the appendix Figure 8 shown. In the appendix Figure 8 shown, the rectangle enclosed by the thick line frame represents the first PRDCH, the rectangle filled with crosses represents the L1 control information in the first format, the blank-filled rectangle enclosed by the thin line represents a field in the MAC layer, the dashed arrow represents the indication relationship, and a field in the MAC layer carried by the first PRDCH indicates the device type of the receiver.

[0286] In Embodiment 8, the L1 control information included in the first PRDCH adopts the first format, and at least one field in the MAC layer carried by the first PRDCH indicates the device type of the receiver of the first PRDCH.

[0287] As an embodiment, indicating the device type of the receiver of the first PRDCH in the field of the MAC layer can save the overhead of the L1 control information and reduce the implementation complexity of the device type corresponding to the L1 control information in the first format.

[0288] As an embodiment, "the L1 control information included in the first PRDCH adopts the first format" includes: the L1 control information included in the first PRDCH is the L1 control information in the first format.

[0289] As an embodiment, "the L1 control information included in the first PRDCH adopts the first format" includes: the first PRDCH carries the L1 control information in the first format.

[0290] As an embodiment, at least one field in the MAC layer carried by the first PRDCH is information in the MAC (Medium Access Control) layer mapped on the first PRDCH.

[0291] As an embodiment, at least one field in the MAC layer carried by the first PRDCH is information in the MAC layer included in a transport block (TB) mapped on the first PRDCH.

[0292] As an example, at least one domain of the MAC layer carried by the first PRDCH is a domain of the MAC layer included in the transport channel mapped on the first PRDCH.

[0293] As an example, at least one domain of the MAC layer carried by the first PRDCH is information included in the MAC PDU (Protocol Data Unit) mapped on the first PRDCH.

[0294] As an example, at least one domain of the MAC layer carried by the first PRDCH is information included in the MAC SDU (Service Data Unit) mapped on the first PRDCH.

[0295] As an example, at least one domain of the MAC layer carried by the first PRDCH is the MAC CE (control element) carried by the first PRDCH.

[0296] As an example, at least one domain of the MAC layer carried by the first PRDCH is the MAC header carried by the first PRDCH.

[0297] As an example, at least one domain of the MAC layer carried by the first PRDCH is the MAC payload carried by the first PRDCH.

[0298] As an example, at least one domain of the MAC layer carried by the first PRDCH includes at least one bit.

[0299] As an example, "at least one domain of the MAC layer carried by the first PRDCH indicates the device type of the receiver of the first PRDCH" includes: at least one domain of the MAC layer carried by the first PRDCH explicitly or implicitly indicates the device type of the receiver of the first PRDCH.

[0300] As an example, "at least one domain of the MAC layer carried by the first PRDCH indicates the device type of the receiver of the first PRDCH" includes: one domain of the MAC layer carried by the first PRDCH indicates the device type of the receiver of the first PRDCH.

[0301] As an example, "at least one MAC layer field carried by the first PRDCH indicates the device type of the receiver of the first PRDCH" includes: a plurality of MAC layer fields carried by the first PRDCH indicate the device type of the receiver of the first PRDCH.

[0302] As an example, "at least one MAC layer field carried by the first PRDCH indicates the device type of the receiver of the first PRDCH" includes: at least one MAC layer field carried by the first PRDCH indicates that the receiver of the first PRDCH is Internet of Things device 1 (device 1), Internet of Things device 2a (device 2a), or Internet of Things device 2b (device 2b) defined in 3GPP TR38.769.

[0303] As an example, "at least one MAC layer field carried by the first PRDCH indicates the device type of the receiver of the first PRDCH" includes: at least one MAC layer field carried by the first PRDCH indicates that the receiver of the first PRDCH is Internet of Things device A (device A), Internet of Things device B (device B), or Internet of Things device C (device C) defined in 3GPP TR38.848.

[0304] As an example, "at least one MAC layer field carried by the first PRDCH indicates the device type of the receiver of the first PRDCH" includes: at least one MAC layer field carried by the first PRDCH indicates the identifier (ID) of the receiver of the first PRDCH, and different device types respectively correspond to different ID ranges of the Internet of Things devices in this application.

[0305] As an example, a MAC layer field carried by the first PRDCH indicates the device identifier (ID) of the receiver of the first PRDCH.

[0306] As an example, a MAC layer field carried by the first PRDCH indicates the group identifier (ID) to which the receiver of the first PRDCH belongs.

[0307] As an example, when the receiver of the first PRDCH is different from the device type of the receiver of the first PRDCH indicated by at least one MAC layer field carried by the first PRDCH, the receiver of the first PRDCH ignores the first PRDCH.

[0308] Example 9

[0309] Example 9 illustrates a schematic diagram of the first PRDCH and the first PDRCH relationship according to an embodiment of the present application, as shown in the appendix Figure 9 as shown. In the appendix Figure 9 , the rectangle enclosed by the thick line frame represents the first PRDCH or the first PDRCH, the rectangle filled with a cross represents the L1 control information, the rectangle enclosed by the thin line frame represents the MAC layer domain, and the dashed arrow represents the indication relationship; in Case 1, the first PRDCH carries the L1 control information of the first format, and the MAC layer domain indicates the number of chips included in the first PDRCH. In Case 2, the first PRDCH carries the L1 control information of the second format, and the L1 control information of the second format indicates the number of chips included in the first PDRCH.

[0310] In Example 9, when the L1 control information included in the first PRDCH in the present application adopts the first format, a MAC layer domain included in the first PRDCH indicates the number of chips occupied by the first PDRCH; when the L1 control information included in the first PRDCH adopts the second format, a domain included in the L1 control information included in the first PRDCH indicates the number of chips occupied by the first PDRCH, and the chips include at least one of the OOK time unit and the BPSK time unit.

[0311] As an embodiment, considering the complexity of the receiving device, the information of the first PDRCH is not carried in the L1 control information of the first format, and the information of the first PDRCH is carried in the L1 control information of the second format, which is compatible with different types of Internet of Things devices, more flexible and reduces the implementation complexity.

[0312] As an embodiment, the first PDRCH is the baseband signal or radio frequency signal of the PDRCH (Physical Device to Reader Channel).

[0313] As an embodiment, the first PDRCH includes a reference signal.

[0314] As an embodiment, the first PDRCH does not include a reference signal.

[0315] As an embodiment, the first PDRCH includes a preamble.

[0316] As an embodiment, the first PDRCH does not include a preamble.

[0317] As an embodiment, the first PDRCH is transmitted from the Internet of Things device to the reader.

[0318] As an embodiment, the first PDRCH carries physical layer control information.

[0319] As an embodiment, the first PDRCH does not carry physical layer control information.

[0320] As an embodiment, the first PDRCH carries only high layer control information.

[0321] As an embodiment, the first PDRCH carries all or part of the bits in a TB (transport block).

[0322] As an embodiment, all or part of the bits in a TB are used to generate the first PDRCH.

[0323] As an embodiment, the first PDRCH is a signal including only high and low levels.

[0324] As an embodiment, the first PDRCH adopts OOK.

[0325] As an embodiment, the first PDRCH adopts BPSK.

[0326] As an embodiment, the first PDRCH adopts MSK.

[0327] As an embodiment, when the L1 control information included in the first PRDCH adopts the first format, the L1 control information included in the first PRDCH does not indicate the number of chips occupied by the first PDRCH.

[0328] As an embodiment, when the L1 control information included in the first PRDCH adopts the first format, the L1 control information included in the first PRDCH does not include a field related to the scheduling information of the first PDRCH.

[0329] As an embodiment, a MAC layer field included in the first PRDCH is the information of the MAC (Medium Access Control) layer mapped on the first PRDCH.

[0330] As an embodiment, a MAC layer field included in the first PRDCH is the information of the MAC layer included in the transport block (TB) mapped on the first PRDCH.

[0331] As an embodiment, a MAC layer field included in the first PRDCH is the MAC layer field included in the transport channel mapped on the first PRDCH.

[0332] As an example, the field of a MAC layer included in the first PRDCH is the information included in the MAC PDU (Protocol Data Unit) mapped on the first PRDCH.

[0333] As an example, the field of a MAC layer included in the first PRDCH is the information included in the MAC SDU (Service Data Unit) mapped on the first PRDCH.

[0334] As an example, the field of a MAC layer included in the first PRDCH is the MAC CE (control element) carried by the first PRDCH.

[0335] As an example, the field of a MAC layer included in the first PRDCH is the MAC header carried by the first PRDCH.

[0336] As an example, the field of a MAC layer included in the first PRDCH is the MAC payload carried by the first PRDCH.

[0337] As an example, the field of a MAC layer included in the first PRDCH includes at least one bit.

[0338] As an example, "the field of a MAC layer included in the first PRDCH indicates the number of chips occupied by the first PDRCH" includes: the field of a MAC layer included in the first PRDCH explicitly or implicitly indicates the number of chips occupied by the first PDRCH.

[0339] As an example, "the field of a MAC layer included in the first PRDCH indicates the number of chips occupied by the first PDRCH" includes: the field of a MAC layer included in the first PRDCH indicates the number of chips occupied by the first PDRCH and the duration of each chip.

[0340] As an example, "the field of a MAC layer included in the first PRDCH indicates the number of chips occupied by the first PDRCH" includes: the field of a MAC layer included in the first PRDCH indicates the resource allocation for the first PDRCH.

[0341] As an example, "a field in the MAC layer included in the first PRDCH indicates the number of chips occupied by the first PDRCH" includes: a field in the MAC layer included in the first PRDCH indicates the duration of the first PDRCH.

[0342] As an example, "a field in the MAC layer included in the first PRDCH indicates the number of chips occupied by the first PDRCH" includes: a field in the MAC layer included in the first PRDCH indicates the size of the transport block (TB) carried by the first PDRCH.

[0343] As an example, "a field in the MAC layer included in the first PRDCH indicates the number of chips occupied by the first PDRCH" includes: a field in the MAC layer included in the first PRDCH indicates a resource allocation index, and the number of chips occupied by the first PDRCH has a mapping relationship or a corresponding relationship with the resource allocation index.

[0344] As an example, when the L1 control information included in the first PRDCH adopts the first format, a field in the MAC layer included in the first PRDCH further indicates the duration of each chip occupied by the first PDRCH.

[0345] As an example, "a field included in the L1 control information included in the first PRDCH indicates the number of chips occupied by the first PDRCH" includes: a field included in the L1 control information included in the first PRDCH explicitly or implicitly indicates the number of chips occupied by the first PDRCH.

[0346] As an example, "a field included in the L1 control information included in the first PRDCH indicates the number of chips occupied by the first PDRCH" includes: the L1 control information included in the first PRDCH includes a resource allocation indicator field for the first PDRCH.

[0347] As an example, "a field included in the L1 control information included in the first PRDCH indicates the number of chips occupied by the first PDRCH" includes: the resource allocation indicator field for the first PDRCH is a field that constitutes the format of the L1 control information included in the first PRDCH.

[0348] As an example, "a field included in the L1 control information included in the first PRDCH indicates the number of chips occupied by the first PDRCH" includes: the resource allocation indicator field for the first PDRCH included in the L1 control information included in the first PRDCH indicates the number of chips occupied by the first PDRCH.

[0349] As an example, "a field included in the L1 control information included in the first PRDCH indicates the number of chips occupied by the first PDRCH" includes: the time domain resource assignment field for the first PDRCH included in the L1 control information included in the first PRDCH indicates the number of chips occupied by the first PDRCH.

[0350] As an example, "a field included in the L1 control information included in the first PRDCH indicates the number of chips occupied by the first PDRCH" includes: at least one L1 control information bit included in the first PRDCH indicates the number of chips occupied by the first PDRCH.

[0351] As an example, "a field included in the L1 control information included in the first PRDCH indicates the number of chips occupied by the first PDRCH" includes: a field included in the L1 control information included in the first PRDCH indicates the duration of the first PDRCH.

[0352] As an example, "a field included in the L1 control information included in the first PRDCH indicates the number of chips occupied by the first PDRCH" includes: a field included in the L1 control information included in the first PRDCH indicates the size of the transport block (TB) carried by the first PDRCH.

[0353] As an example, "a field included in the L1 control information included in the first PRDCH indicates the number of chips occupied by the first PDRCH" includes: a field included in the L1 control information included in the first PRDCH indicates the resource allocation and MCS (Modulation and Coding Scheme) of the first PDRCH.

[0354] As an example, "a field included in the L1 control information included in the first PRDCH indicates the number of chips occupied by the first PDRCH" includes: a field included in the L1 control information included in the first PRDCH indicates the resource allocation index and MCS (Modulation and Coding Scheme) index of the first PDRCH.

[0355] As an example, when the L1 control information included in the first PRDCH adopts the second format, a field included in the L1 control information included in the first PRDCH indicates the frequency domain resource allocation of the first PDRCH.

[0356] As an example, when the L1 control information included in the first PRDCH adopts the second format, a field included in the L1 control information included in the first PRDCH indicates the MCS (Modulation and Coding Scheme) corresponding to the first PDRCH.

[0357] As an example, the transmission mode indicated by the L1 control information included in the first PRDCH depends on the configuration or indication of the base station.

[0358] As an example, the transmission mode indicated by the L1 control information included in the first PRDCH is indicated by high layers parameters.

[0359] As an example, the chip corresponds to chip.

[0360] As an example, the chip corresponds to one modulated symbol.

[0361] As an example, the chip corresponds to an OOK or BPSK modulated symbol.

[0362] As an example, the chip only includes OOK time units.

[0363] As an example, the chip only includes BPSK time units.

[0364] As an example, the chip only includes BPSK time units and OOK time units.

[0365] As an example, the chip further includes MSK (Minimum Frequency Shift Keying) chips.

[0366] As an example, when the first PDRCH uses BPSK, the chip is a BPSK time unit.

[0367] As an example, when the first PDRCH uses OOK, the chip is an OOK time unit.

[0368] As an example, the BPSK time unit is a BPSK chip after BPSK (Binary Phase Shift Keying) modulation.

[0369] As an example, the BPSK time unit is continuous time.

[0370] As an example, the BPSK time unit is a square wave or sine wave with a fixed phase once.

[0371] As an example, the BPSK time unit represents bits "0" and "1" encoded by phase.

[0372] As an example, the BPSK time unit is the duration of phase 0 or phase π with a local reference carrier being a square wave or sine wave.

[0373] As an example, the BPSK time unit includes the CP (Cyclic Prefix) of an OFDM symbol.

[0374] As an example, the BPSK time unit does not include the CP (Cyclic Prefix) of an OFDM symbol.

[0375] As an example, the OOK time unit is an OOK chip after OOK modulation.

[0376] As an example, the OOK time unit includes: an OOK chip.

[0377] As an example, the OOK time unit is continuous time.

[0378] As an example, the OOK time unit includes: the duration of a string of high-level sampling points or a string of low-level sampling points.

[0379] As an example, the OOK time unit includes: the duration of one high level or the duration of one low level.

[0380] As an example, the OOK time unit includes: the shortest duration of one high level or one low level.

[0381] As an example, the OOK time unit includes: the shortest duration of one high-level envelope or one low-level envelope.

[0382] As an example, the OOK time unit includes: twice the shortest duration of one high level or one low level.

[0383] As an example, the OOK time unit includes: a time unit occupied by one bit after linear encoding.

[0384] As an example, the OOK time unit includes: the duration of one high-level envelope or one low-level envelope.

[0385] As an example, the OOK time unit includes: the time unit mapped by one bit after linear encoding.

[0386] As an example, the OOK time unit includes: the time unit mapped by one bit without linear encoding or Manchester encoding.

[0387] As an example, the OOK time unit includes: the time length corresponding to or mapped by one OOK bit.

[0388] As an example, the OOK time unit includes: half of the time length corresponding to one OOK bit.

[0389] As an example, the OOK time unit includes: the duration of "01" or "10" in Manchester encoding.

[0390] As an example, the OOK time unit includes: the duration of "1" or "0" in Manchester encoding.

[0391] As an example, the OOK time unit includes: the total duration of high and low levels corresponding to one information bit in Manchester encoding.

[0392] As an example, the OOK time unit includes: the minimum duration of one high level or one low level in Manchester encoding.

[0393] As an example, the OOK time unit includes: the duration of one bit, one high level, or one low level after Manchester encoding.

[0394] As an example, the OOK time unit includes the CP (Cyclic Prefix) of the OFDM symbol.

[0395] As an embodiment, the OOK time unit does not include the CP (Cyclic Prefix) of the OFDM symbol.

[0396] Example 10

[0397] Embodiment 10 exemplifies a schematic diagram of the relationship between the control sub-signal and the data sub-signal according to an embodiment of the present application, as shown in the appendix Figure 10 shown. In the appendix Figure 10 , the horizontal axis represents time, the rectangle represents an OFDM symbol, the length of the cross-hatched filling represents the first time interval, the first PRDCH includes a control sub-signal and a data sub-signal, and the time-domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval.

[0398] In Embodiment 10, the first PRDCH includes a data sub-signal and a control sub-signal, the control sub-signal carries L1 control information, the data sub-signal carries data information bits, the time-domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval, and the first time interval is equal to the absolute time or equal to multiple OOK time units.

[0399] As an embodiment, considering the influence of the processing delay of the Internet of Things device or terminal device or the configuration change delay of the Internet of Things device, an absolute time or multiple OOK time units are used to separate the control sub-signal and the data sub-signal, reducing the implementation complexity. At the same time, it ensures that the terminal is aligned with the existing OFDM symbol boundary when sending the data sub-signal, is compatible with the existing communication architecture, and improves the transmission performance.

[0400] As an embodiment, "the first PRDCH includes a control sub-signal and a data sub-signal" includes: the first PRDCH is divided into the control sub-signal and the data sub-signal.

[0401] As an embodiment, "the first PRDCH includes a control sub-signal and a data sub-signal" includes: the two time-domain parts of the first PRDCH are respectively the control sub-signal and the data sub-signal.

[0402] As an embodiment, "the first PRDCH includes a control sub-signal and a data sub-signal" includes: the control information bits and the data information bits are respectively mapped to two parts of the first PRDCH.

[0403] As an embodiment, "the first PRDCH includes a control sub-signal and a data sub-signal" includes: both the control information bits and the data information bits are mapped to the first PRDCH.

[0404] As an example, "the first PRDCH includes a control sub-signal and a data sub-signal" includes: both the control sub-signal and the data sub-signal belong to the first PRDCH.

[0405] As an example, "the first PRDCH includes a control sub-signal and a data sub-signal" includes: the first PRDCH is composed of the control sub-signal and the data sub-signal.

[0406] As an example, "the first PRDCH includes a control sub-signal and a data sub-signal" includes: the control sub-signal and the data sub-signal are two parts of the first PRDCH.

[0407] As an example, "the first PRDCH includes a control sub-signal and a data sub-signal" includes: the control sub-signal and the data sub-signal constitute the first PRDCH.

[0408] As an example, "the first PRDCH includes a control sub-signal and a data sub-signal" includes: the control sub-signal and the data sub-signal belong to the same physical channel. As a sub-example of this example, the control sub-signal and the data sub-signal belong to the same physical channel, and the advantage of doing so is simple design.

[0409] As an example, "the first PRDCH includes a control sub-signal and a data sub-signal" includes: both the control sub-signal and the data sub-signal belong to the PRDCH (Physical Reader to Device Channel).

[0410] As an example, "the first PRDCH includes a control sub-signal and a data sub-signal" includes: both the control sub-signal and the data sub-signal are transmitted on the PRDCH (Physical Reader to Device Channel).

[0411] As an example, "the first PRDCH includes a control sub-signal and a data sub-signal" includes: the control sub-signal and the data sub-signal are a transmission on the same physical channel.

[0412] As an example, "the first PRDCH includes a control sub-signal and a data sub-signal" includes: the control sub-signal and the data sub-signal are a transmission on the same physical channel, and the control sub-signal and the data sub-signal carry different types of bit information.

[0413] As an example, "the first PRDCH includes a control sub-signal and a data sub-signal" includes: the OFDM symbols occupied by the first PRDCH in the time domain include the OFDM symbols occupied by the control sub-signal and the data sub-signal in the time domain.

[0414] As an example, "the first PRDCH includes a control sub-signal and a data sub-signal" includes: the time-frequency resources occupied by the control sub-signal and the data sub-signal belong to the time-frequency resources occupied by the first PRDCH.

[0415] As an example, "the first PRDCH includes a control sub-signal and a data sub-signal" includes: the control sub-signal and the data sub-signal respectively carry the control information bits included in the first PRDCH and the data information bits included in the first PRDCH.

[0416] As an example, the control sub-signal and the data sub-signal are discontinuous in the time domain.

[0417] As an example, the control sub-signal and the data sub-signal are mapped to orthogonal time-domain resources.

[0418] As an example, the control sub-signal carries physical layer control information.

[0419] As an example, the control sub-signal carries high-layer control information.

[0420] As an example, the control sub-signal uses OOK.

[0421] As an example, the data sub-signal is a physical signal for transmitting data information.

[0422] As an example, the data sub-signal carries high-layer control information.

[0423] As an example, the data sub-signal does not carry high-layer control information.

[0424] As an example, the data sub-signal carries MAC layer information.

[0425] As an example, the data sub-signal carries MAC CE.

[0426] As an example, the data sub-signal carries all or part of the bits in a TB (transport block).

[0427] As an example, all or part of the bits in a TB are used to generate the data sub-signal.

[0428] As an example, all or part of the bits in a transport block are channel-coded to generate the data sub-signal.

[0429] As an example, all or part of the bits in a transport block are subjected to CRC addition, line coding, and OOK modulation to generate the data sub-signal.

[0430] As an example, the data sub-signal is a signal including only high and low levels.

[0431] As an example, the data sub-signal uses OOK.

[0432] As an example, "the control sub-signal carries L1 control information" includes: the L1 control information resources are mapped to the resources allocated for the control sub-signal.

[0433] As an example, "the control sub-signal carries L1 control information" includes: at least one L1 control information bit is used to generate the control sub-signal.

[0434] As an example, "the control sub-signal carries L1 control information" includes: at least one L1 control information bit undergoes at least one of CRC attachment, repetition, scrambling, line coding, and OOK generation based on OFDM to generate the control sub-signal.

[0435] As an example, "the control sub-signal carries L1 control information" includes: the control sub-signal is generated from the L1 control information.

[0436] As an example, "the control sub-signal carries L1 control information" includes: the control sub-signal carries only L1 control information.

[0437] As an

[0438] As an example, "the control sub-signal carries L1 control information" includes: the control sub-signal carries at least one L1 control information bit.

[0439] As an example, "the control sub-signal carries L1 control information" includes: the control sub-signal carries a fixed or predefined number of L1 control information bits.

[0440] As an example, "the control sub-signal carries L1 control information" includes: the control sub-signal carries a type of L1 control information format.

[0441] As an embodiment, the control sub-signal carries the CRC generated by the L1 control information bits.

[0442] As an embodiment, the control sub-signal does not carry the CRC generated by the L1 control information bits.

[0443] As an embodiment, each L1 control information bit carried by the control sub-signal is a bit in the control information payload.

[0444] As an embodiment, each L1 control information bit carried by the control sub-signal is a bit in the control information field.

[0445] As an embodiment, each L1 control information bit carried by the control sub-signal is a bit of scheduling information.

[0446] As an embodiment, the L1 control information bits carried by the control sub-signal are the L1 control information included in the first PRDCH in the present application.

[0447] As an embodiment, at least one L1 control information bit carried by the control sub-signal is used to schedule the data sub-signal.

[0448] As an embodiment, at least one L1 control information bit carried by the control sub-signal is used to indicate the duration of the data sub-signal.

[0449] As an embodiment, the L1 control information bits carried by the control sub-signal and the data information (or TB or CB) bits carried by the data sub-signal independently attach (or add) CRC.

[0450] As an embodiment, "the data sub-signal carries data information bits" includes: the data sub-signal is generated by the data information bits.

[0451] As an embodiment, "the data sub-signal carries data information bits" includes: the data information bit resources are mapped to the resources allocated for the data sub-signal.

[0452] As an embodiment, "the data sub-signal carries data information bits" includes: at least one data information bit generates the data sub-signal through at least one of CRC attachment, repetition, scrambling, linear coding, and generating OOK based on OFDM.

[0453] As an embodiment, "the data sub-signal carries data information bits" includes: the data sub-signal carries at least data information bits.

[0454] As an embodiment, "the data sub-signal carries data information bits" includes: the data sub-signal only carries data information bits.

[0455] As an embodiment, "the data sub-signal carries data information bits" includes: the data sub-signal carries at least one data information bit.

[0456] As an embodiment, "the data sub-signal carries data information bits" includes: the data sub-signal includes a plurality of data information bits.

[0457] As an embodiment, "the data sub-signal carries data information bits" includes: the data sub-signal carries a first transport block, and the first transport block includes at least one data information bit.

[0458] As an embodiment, "the data sub-signal carries data information bits" includes: the data sub-signal carries a first transport block, and the size of the first transport block depends on at least one of the time domain resources occupied by the data sub-signal and the number of OOK time units included in each OFDM symbol occupied by the data sub-signal.

[0459] As an embodiment, the data sub-signal carries the CRC generated by the data information bits.

[0460] As an embodiment, the data sub-signal does not carry control information bits of the Physical layer.

[0461] As an embodiment, each data information bit carried by the data sub-signal is a bit in the data information payload.

[0462] As an embodiment, the data sub-signal also carries the MAC SDU.

[0463] As an embodiment, the number of data information bits carried by the data sub-signal has an upper limit value.

[0464] As an embodiment, the number of data information bits carried by the data sub-signal is predefined.

[0465] As an embodiment, the number of data information bits carried by the data sub-signal is indicated by the control sub-signal.

[0466] As an embodiment, the number of data information bits carried by the data sub-signal is configured by the core network.

[0467] As an example, the number of data information bits carried by the data sub-signal is indicated by NAS (Non-Access Stratum).

[0468] As an example, the data sub-signal carries a plurality of data information bits.

[0469] As an example, the time-domain resources occupied by the control sub-signal and the time-domain resources occupied by the data sub-signal are orthogonal.

[0470] As an example, there is no overlap in the time domain between the control sub-signal and the data sub-signal.

[0471] As an example, the time-domain resources occupied by the control sub-signal and the time-domain resources occupied by the data sub-signal do not overlap.

[0472] As an example, the control sub-signal and the data sub-signal occupy different OFDM symbols.

[0473] As an example, the control sub-signal and the data sub-signal are respectively mapped to different OFDM symbol sets.

[0474] As an example, the control sub-signal is earlier than the data sub-signal in the time domain. As a sub-example of this example, the control sub-signal being earlier than the data sub-signal allows for receiving the indication of the L1 control information before receiving the data information, which is more flexible and improves robustness at the same time.

[0475] As an example, "the time-domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the control sub-signal and the data sub-signal are not continuous in the time domain.

[0476] As an example, "the time-domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the interval between the time-domain resources to which the L1 control information bits included in the first PRDCH and the data information bits included in the first PRDCH are mapped is the minimum number of OFDM symbols not less than the first time interval.

[0477] As an example, "the time domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the OFDM symbols occupied by the control sub-signal in the time domain form a first OFDM symbol set, the OFDM symbols occupied by the data sub-signal in the time domain form a second OFDM symbol set, and the time domain interval length between the first OFDM symbol set and the second OFDM symbol set is the minimum number of OFDM symbols not less than the first time interval.

[0478] As an example, "the time domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the L1 control information bits carried by the first PRDCH are mapped to the first OFDM symbol set, the data information bits carried by the first PRDCH are mapped to the second OFDM symbol set, and the time domain interval length between the first OFDM symbol set and the second OFDM symbol set is the minimum number of OFDM symbols not less than the first time interval.

[0479] As an example, "the time domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the time domain interval length between the latest OFDM symbol to which the L1 control information bits included in the first PRDCH are mapped and the earliest OFDM symbol to which the data information bits included in the first PRDCH are mapped is equal to the minimum number of OFDM symbols not less than the first time interval.

[0480] As an example, "the time domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the time domain interval length between the latest OFDM symbol occupied by the control sub-signal in the time domain and the earliest OFDM symbol occupied by the data sub-signal in the time domain is the minimum number of OFDM symbols not less than the first time interval.

[0481] As an example, "the time domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the time domain interval length between the start symbol of the control sub-signal and the start symbol of the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval.

[0482] As an example, "the time domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the time domain interval length between the start symbol of the control sub-signal and the end symbol of the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval.

[0483] As an example, "the time domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the time domain interval length between the end symbol of the control sub-signal and the start sub-symbol of the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval.

[0484] As an example, "the time domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the time domain interval length between the end symbol of the control sub-signal and the end symbol of the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval.

[0485] As an example, "the time domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the time domain interval length between the control sub-signal and the data sub-signal is the minimum number of OFDM symbols greater than or equal to the first time interval.

[0486] As an example, "the time domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the time domain interval length between the control sub-signal and the data sub-signal is the minimum number of OFDM symbols greater than the first time interval.

[0487] As an example, "the time domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the time domain interval length between the control sub-signal and the data sub-signal is at least one OFDM symbol.

[0488] As an example, "the time domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the time domain interval between the control sub-signal and the data sub-signal is multiple OFDM symbols.

[0489] As an example, "the length of the time domain interval between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the cut-off boundary of the control sub-signal and the start boundary of the data sub-signal are both aligned with the boundary of the OFDM symbol.

[0490] As an example, "the length of the time domain interval between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the number of OFDM symbols in the time domain interval between the control sub-signal and the data sub-signal is the minimum number of OFDM symbols not less than the first time interval.

[0491] As an example, "the length of the time domain interval between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the length of the time domain interval between the control sub-signal and the data sub-signal is X OFDM symbols, where X is the minimum number of OFDM symbols not less than the first time interval.

[0492] As an example, "the length of the time domain interval between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the length of the time domain interval between the control sub-signal and the data sub-signal is X OFDM symbols, where, where represents rounding up, T is the first time interval, and T2 represents the duration of one OFDM symbol.

[0493] As an example, "the length of the time domain interval between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the length of the time domain interval between the control sub-signal and the data sub-signal is X OFDM symbols, where, where represents rounding up, X1 is the number of OOK time units equal to the first time interval, and T2 represents the number of OOK time units included in one OFDM symbol.

[0494] As an example, "the length of the time domain interval between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the data information bits included in the first PRDCH are mapped to the first OFDM symbol not less than the first time interval after being mapped to the control sub-signal.

[0495] As an example, "the length of the time domain interval between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the first symbol occupied by the data sub-signal in the time domain is the first OFDM symbol not less than the first time interval after the latest symbol occupied by the control sub-signal in the time domain.

[0496] As an example, "the length of the time domain interval between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the terminal in the present application sends the data sub-signal on the first OFDM symbol after an interval not less than the first time interval after sending the control sub-signal.

[0497] As an example, "the first time interval is equal to an absolute time or equal to a plurality of OOK time units" includes: the first time interval is equal to an absolute time.

[0498] As an example, "the first time interval is equal to an absolute time or equal to a plurality of OOK time units" includes: the first time interval is equal to an absolute time.

[0499] As an example, "the first time interval is equal to an absolute time or equal to a plurality of OOK time units" includes: the first time interval is represented by an absolute time.

[0500] As an example, "the first time interval is equal to an absolute time or equal to a plurality of OOK time units" includes: the first time interval is represented by the length of an absolute time.

[0501] As an example, "the first time interval is equal to an absolute time or equal to a plurality of OOK time units" includes: the first time interval is equal to a plurality of OOK time units.

[0502] As an example, "the first time interval is equal to an absolute time or equal to a plurality of OOK time units" includes: the first time interval is an integer number of OOK time units.

[0503] As an example, the unit of the first time interval is seconds.

[0504] As an example, the unit of the first time interval is milliseconds.

[0505] As an example, the unit of the first time interval is microseconds.

[0506] As an example, the first time interval is represented by the number of OOK time units.

[0507] As an example, the value of the first time interval is a non - negative integer.

[0508] As an example, the first time interval includes the processing delay of the Internet of Things device in this application.

[0509] As an example, the first time interval includes the processing delay of the user.

[0510] As an example, the first time interval includes the processing delay of a device.

[0511] As an example, the first time interval includes the processing delay of an Ambient IoT device.

[0512] As an example, the first time interval includes the time for decoding the L1 control information.

[0513] As an example, the first time interval includes the time for applying the configuration included in the L1 control information.

[0514] As an example, the first time interval includes the time for converting the number of OOK time units included in one OFDM symbol.

[0515] As an example, the first time interval includes the time for changing the number of OOK time units included in one OFDM symbol.

[0516] As an example, the first time interval includes the guard interval between the control sub - signal and the data sub - signal.

[0517] As an example, the first time interval is an offset.

[0518] As an example, the first time interval is a predefined absolute time.

[0519] As an example, the first time interval is a predefined number of OOK time units.

[0520] As an example, the first time interval is a fixed value.

[0521] As an example, the first time interval is a fixed number of OOK time units.

[0522] As an example, the first time interval is hard coded in the standard.

[0523] As an example, the first time interval is dependent on the type of the Internet of Things device in this application.

[0524] As an embodiment, different types of Internet of Things devices have different said first time intervals.

[0525] As an embodiment, the first time interval is per device type.

[0526] As an embodiment, the first time interval is per number of OOK time units.

[0527] As an embodiment, the first time interval depends on the indication of dynamic signaling.

[0528] As an embodiment, the first time interval depends on the configuration.

[0529] As an embodiment, the first time interval is related to the device processing capability.

[0530] As an embodiment, the first time interval is related to the processing capability of A-IOT devices.

[0531] As an embodiment, the first time interval depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0532] As an embodiment, the first time interval depends on the number of OOK time units included in one OFDM symbol occupied by the data sub-signal in the time domain.

[0533] As an embodiment, the first time interval depends on the number of OOK time units included in one OFDM symbol occupied by the control sub-signal in the time domain.

[0534] As an embodiment, the first time interval is equal to a plurality of OOK time units, and the number of OOK time units that the first time interval is equal to depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0535] As an embodiment, the first time interval is equal to an absolute time, and the value of the first time interval depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0536] As an embodiment, the first time interval is equal to an absolute time, and the value of the first time interval has a corresponding relationship or mapping relationship with the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0537] As an example, the first time interval depends on the subcarrier spacing of the OFDM symbols occupied by the first PRDCH in the time domain.

[0538] As an example, the first time interval depends on the duration of the OFDM symbols occupied by the first PRDCH in the time domain.

[0539] As an example, the first time interval depends on the sampling rate for the first PRDCH.

[0540] As an example, the first time interval depends on the number of points of the FFT for the first PRDCH.

[0541] As an example, the first time interval depends on the number of subcarriers occupied by the first PRDCH in the frequency domain.

[0542] Example 11

[0543] Example 11 exemplifies a schematic diagram of a target power value according to an embodiment of the present application, as shown in the appendix Figure 11 as shown. In the appendix Figure 11 the vertical axis represents power, and the obliquely filled rectangle represents the target power value, which is equal to the smaller value compared between the first upper limit value and the first power value.

[0544] In Example 11, the target power value is equal to the transmission power value of the first PRDCH in the present application, and the target power value is equal to the smaller value compared between the first upper limit value and the first power value; at least one of the first upper limit value or the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0545] As an example, the maximum output power value or the actual output power value is obtained according to the number of OOK (On-Off Keying) time units or chips in the OFDM symbol or the number of OOK bits that can be transmitted, taking into account the influence of different OOK configurations on radio frequency devices or interference states, optimizing the transmission power when using OOK transmission, and reducing the implementation complexity while improving the performance.

[0546] As an example, the unit of the target power value is dBm.

[0547] As an example, the unit of the target power value is watt or milliwatt.

[0548] As an example, the target power value is equal to the transmission power of the first PRDCH in the transmission occasion to which it belongs in the time domain and in the uplink BWP to which it belongs in the frequency domain.

[0549] As an example, the target power value is the transmission power value of the first PRDCH at the antenna connector.

[0550] As an example, the target power value is the transmission power value of the baseband of the first PRDCH.

[0551] As an example, the target power value is the transmission power value of the radio frequency of the first PRDCH.

[0552] As an example, the target power value does not include the antenna gain.

[0553] As an example, the target power value includes the antenna gain.

[0554] As an example, the target power value is equal to P PRDCH,b,f,c (i, j, q d , l).

[0555] As an example, the target power value is equal to the average value of the power of the OOK adopted by the first PRDCH at all constellation points.

[0556] As an example, the target power value is equal to the average value of the high-level power and the low-level power of the OOK adopted by the first PRDCH.

[0557] As an example, the target power value is equal to half of the high-level power of the OOK adopted by the first PRDCH.

[0558] As an example, the target power value is equal to the normalized transmission power value of the first PRDCH.

[0559] As an example, the target power value is equal to the average value of all level energies in the OOK adopted by the first PRDCH.

[0560] As an example, the first upper limit value is the value of P CMAX,f,c (i) corresponding to the first PRDCH.

[0561] As an example, the first upper limit value is equal to P CMAX,f,c(i) The sum or difference between the value and an offset value.

[0562] As an example, the first upper limit value is the configured maximum output power of the sender of the first PRDCH.

[0563] As an example, the first upper limit value is equal to the sum or difference between the configured maximum output power of the sender of the first PRDCH and an offset value.

[0564] As an example, the first upper limit value is equal to the configured maximum output power value for the first PRDCH.

[0565] As an example, the first upper limit value is equal to the sum or difference between the configured maximum output power value for the first PRDCH and an offset value.

[0566] As an example, the first upper limit value is the configured maximum output power of the sender of the first PRDCH in R2D.

[0567] As an example, the first upper limit value is the configured maximum output power of the sender of the first PRDCH in the carrier occupied by the serving cell to which the first PRDCH belongs and in the transmission opportunity to which the first PRDCH belongs in the time domain.

[0568] As an example, the first upper limit value is a power value related to the radio frequency characteristics of the sender of the first PRDCH when transmitting the first PRDCH.

[0569] As an example, the first power value is equal to the transmission power value of the first PRDCH when the transmission power does not exceed the first upper limit value.

[0570] As an example, the first power value is equal to the transmission power value obtained by power control of the first PRDCH.

[0571] As an example, the first power value is equal to the transmission power value obtained by power control of a virtual (or reference) uplink signal.

[0572] As an example, the first power value is equal to the transmission power value obtained by power control of the virtual uplink signal corresponding to the first PRDCH.

[0573] As an example, the first power value is equal to the transmission power value of the first PRDCH obtained based on the path loss adopted for uplink power control.

[0574] As an example, the first power value is the transmit power value obtained through open loop power control when transmitting the first PRDCH.

[0575] As an example, the first power value is the transmit power value related to the downlink path loss (PL) of the sender of the first PRDCH.

[0576] As an example, the first power value is equal to the P O_PRDCH value corresponding to the first PRDCH, the value corresponding to the first PRDCH, and the α PRDCH ·PL PRDCH value corresponding to the first PRDCH. Here, PRDCH represents the first PRDCH, represents the number of RBs included by the first P RDCH in the frequency domain, μ represents the subcarrier spacing of the subcarriers included by the first PRDCH in the frequency domain, P O_PRDCH and α PRDCH represent the respectively configured values, and PL PRDCH represents the path loss.

[0577] As an example, the first power value is equal to the P O_PRDCH,b,f,c (j) value corresponding to the first PRDCH, the value corresponding to the first PRDCH, and the α b,f,c (j)·PL b,f,c (q d ) value corresponding to the first PRDCH. Here, PRDCH represents the first PRDCH, represents the number of RBs included by the first PRDCH in the frequency domain, μ represents the subcarrier spacing of the subcarriers included by the first PRDCH in the frequency domain, P O_PRDCH,b,f,c (j) and α b,f,c (j) represent the respectively configured values, and PL b,f,c (q d ) represents the path loss.

[0578] As an example, the unit of the first upper limit value is dBm, and the unit of the first power value is dBm.

[0579] As an example, the unit of the first upper limit value is watt or milliwatt, and the unit of the first power value is watt or milliwatt.

[0580] As an example, the units of the first upper limit value, the first power value, and the transmit power of the first PRDCH are all the same.

[0581] As an example, in the present application, the first information block configures at least one parameter for calculating at least one of the first upper limit value or the first power value.

[0582] As an example, the technical feature that "the target power value is equal to the smaller value compared between the first upper limit value and the first power value" includes the following meanings: when the first upper limit value is greater than the first power value, the target power value is equal to the first power value; when the first upper limit value is less than the first power value, the target power value is equal to the first upper limit value; when the first upper limit value is equal to the first power value, the target power value is equal to the first upper limit value or the first power value.

[0583] As an example, the technical feature that "the target power value is equal to the smaller value compared between the first upper limit value and the first power value" includes the following meaning: the target power value is equal to the result of taking the smaller value (min) between the first upper limit value and the first power value.

[0584] As an example, "at least one of the first upper limit value or the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: both the first upper limit value and the first power value depend on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0585] As an example, "at least one of the first upper limit value or the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: at least one of the first upper limit value or the first power value depends on the number of bits carried in one OFDM symbol occupied by the first PRDCH in the time domain.

[0586] As an example, "at least one of the first upper limit value or the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: at least one of the first upper limit value or the first power value depends on the number of information bits carried in one OFDM symbol occupied by the first PRDCH in the time domain.

[0587] As an example, "at least one of the first upper limit value and the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: at least one of the first upper limit value and the first power value depends on the number of bits after Manchester coding carried by the first PRDCH in one OFDM symbol occupied by the first PRDCH in the time domain.

[0588] As an example, "at least one of the first upper limit value and the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: at least one of the first upper limit value and the first power value depends on the time length of at least one OOK time unit included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0589] As an example, "at least one of the first upper limit value and the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: the first upper limit value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0590] As an example, "at least one of the first upper limit value and the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0591] As an example, "at least one of the first upper limit value and the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: the value of at least one parameter for calculating (or setting or configuring) the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0592] As an example, "at least one of the first upper limit value and the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: the value of at least one parameter for calculating (or setting or configuring) the first upper limit value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0593] As an example, "at least one of the first upper limit value and the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: the value of at least one parameter included in the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0594] As an example, "at least one of the first upper limit value and the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: the value of at least one parameter included in the first upper limit value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0595] As an example, "at least one of the first upper limit value and the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: at least one of the first upper limit value and the first power value is related to the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0596] As an example, "at least one of the first upper limit value and the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain is used to determine (or calculate) at least one of the first upper limit value and the first power value.

[0597] As an example, "at least one of the first upper limit value and the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: the first power value depends on the frequency domain bandwidth of the first PRDCH; the frequency bandwidth of the first PRDCH is related to the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0598] As an embodiment, "at least one of the first upper limit value and the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: the MPR (maximum power reduction) value for the first upper limit value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain. As a subsidiary embodiment of the above embodiment, associating the MPR value with the number of OOK time units takes into account the peak-to-average ratio characteristic of OOK and ensures the transmission efficiency.

[0599] As an embodiment, "at least one of the first upper limit value and the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: the A-MPR (additional maximum power reduction) value for the first upper limit value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain. As a subsidiary embodiment of the above embodiment, associating the A-MPR value with the number of OOK time units takes into account the special impact of OOK on power and does not change the existing MPR setting, ensuring the transmission efficiency while optimizing the overall performance.

[0600] As an embodiment, "at least one of the first upper limit value and the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: the P-MPR (power management maximum power reduction) value for the first upper limit value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain. As a subsidiary embodiment of the above embodiment, associating the P-MPR value with the number of OOK time units takes into account the impact of OOK on power in the overall power management, simplifies the design while ensuring the flexibility of implementation.

[0601] As an example, "at least one of the first upper limit value or the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: the value of a parameter other than MPR or A-MPR or P-MPR for the first upper limit value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain. As a subsidiary example of the above example, correlating the value of a parameter other than MPR or A-MPR or P-MPR with the number of OOK time units provides maximum flexibility while taking into account the special impact of OOK on power.

[0602] As an example, "at least one of the first upper limit value or the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: ΔT for the first upper limit value C,c whose value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain. As a subsidiary example of the above example, correlating the value of ΔT C,c with the number of OOK time units takes the impact of OOK on power into the tolerance limit, reducing the impact on the standard.

[0603] As an example, "at least one of the first upper limit value or the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: ΔP for the first upper limit value PowerClass whose value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain. As a subsidiary example of the above example, correlating the value of ΔP PowerClass with the number of OOK time units takes the characteristics of OOK in the time domain into account in power level setting (or power boosting), improving transmission performance.

[0604] As an example, "at least one of the first upper limit value or the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: the first upper limit value or the value of a parameter for the first upper limit value is linearly related to the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0605] As an example, "at least one of the first upper limit value and the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: the first upper limit value or the value of a parameter for the first upper limit value is linearly correlated with the logarithm of the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0606] As an example, "at least one of the first upper limit value and the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: the first upper limit value or the value of a parameter for the first upper limit value has a tabular correspondence with the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0607] As an example, "at least one of the first upper limit value and the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: the first upper limit value or the value of a parameter for the first upper limit value is in a proportional relationship with the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0608] As an example, "at least one of the first upper limit value and the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: the first power value or the value of a parameter for the first power value is linearly correlated with the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0609] As an example, "at least one of the first upper limit value and the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: the first power value or the value of a parameter for the first power value has a tabular correspondence with the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0610] As an embodiment, "at least one of the first upper limit value and the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: the first power value or the value of a parameter for the first power value is linearly correlated with the logarithm of the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0611] As an embodiment, "at least one of the first upper limit value and the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: the first power value or the value of a parameter for the first power value is in a proportional relationship with the logarithm of the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0612] As an embodiment, "at least one of the first upper limit value and the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: for the first power value the value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain, where represents the number of RBs occupied or mapped by the first PRDCH.

[0613] As an embodiment, the first upper limit value depends on a first parameter value, the first parameter value is a parameter value obtained by assuming that the first PRDCH uses DFT-s-OFDM, and the first parameter value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain. As a sub-embodiment of the above embodiment, the first parameter value is the value of MPR. As a sub-embodiment of the above embodiment, the first parameter value is the value of A-MPR. As a sub-embodiment of the above embodiment, the first parameter value is the value of P-MPR.

[0614] Example 12

[0615] Embodiment 12 exemplifies a structural block diagram of a processing device in a terminal, as shown in the appendix Figure 12 shown. In the appendix Figure 12 the processing device 1200 in the terminal includes a first transmitter 1201. The first transmitter 1201 includes the appendix of this application Figure 4The transmitter / receiver 416 (including antenna 420), transmit processor 415, and controller / processor 440 therein; the first receiver 1202 includes the appendix of this application Figure 4 The transmitter / receiver 416 (including antenna 420), receive processor 412, and controller / processor 440 therein.

[0616] In Embodiment 12, the first transmitter 1201 transmits a first PRDCH, and the first PRDCH uses OOK; wherein, the first PRDCH includes L1 control information, and the candidate formats of the L1 control information included in the first PRDCH at least include a first format and a second format. The first format and the second format are respectively for different device types of the receivers of the first PRDCH. The number of control information bits included in the first format and the number of control information bits included in the second format are different. Only the L1 control information of the second format among the first format and the second format includes device type information.

[0617] As an embodiment, the device type includes at least one of Type 1, Type 2a, and Type 2b. The Internet of Things device of Type 1 monitors the number of control information bits corresponding to the first format. At least one of the Internet of Things devices of Type 2a or the Internet of Things devices of Type 2b monitors the number of control information bits corresponding to the first format and the number of control information bits corresponding to the second format.

[0618] As an embodiment, the L1 control information included in the first PRDCH uses the second format, and a field included in the L1 control information included in the first PRDCH indicates a transmission mode. The transmission mode includes at least one of unicast, multicast, or broadcast; when the transmission mode is indicated as multicast, at least one field included in the L1 control information included in the first PRDCH indicates a multicast group identifier.

[0619] As an embodiment, the L1 control information included in the first PRDCH uses the first format, and at least one field at the MAC layer carried by the first PRDCH indicates the device type of the receiver of the first PRDCH.

[0620] As an embodiment, the first receiver 1202 receives the first PDRCH; when the L1 control information included in the first PRDCH adopts the first format, a field of a MAC layer included in the first PRDCH indicates the number of chips occupied by the first PDRCH; when the L1 control information included in the first PRDCH adopts the second format, a field included in the L1 control information included in the first PRDCH indicates the number of chips occupied by the first PDRCH, and the chips include at least one of an OOK time unit and a BPSK time unit.

[0621] As an embodiment, the first PRDCH includes a data sub-signal and a control sub-signal, the control sub-signal carries L1 control information, the data sub-signal carries data information bits, and the length of the time domain interval between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than a first time interval, and the first time interval is equal to an absolute time or equal to a plurality of OOK time units.

[0622] As an embodiment, the target power value is equal to the transmission power value of the first PRDCH, and the target power value is equal to the smaller value compared between a first upper limit value and a first power value; at least one of the first upper limit value and the first power value depends on the number of OOK time units included in an OFDM symbol occupied by the first PRDCH in the time domain.

[0623] Example 13

[0624] Embodiment 13 exemplifies a structural block diagram of a processing device for an Internet of Things device in an embodiment, as shown in the appendix Figure 13 shown. In the appendix Figure 13 , the processing device 1300 in the Internet of Things device includes a second receiver 1301. The second receiver 1301 includes a reception-related module 1409, BB (BaseBand) logic 1413, a memory 1418, and a clock generator 1419 in the appendix of this application Figure 14 ; the second transmitter 1302 includes a transmission-related module 1417 in the appendix of this application Figure 14 .

[0625] In Embodiment 13, the second receiver 1301 receives the first PRDCH, and the first PRDCH uses OOK; wherein, the first PRDCH includes L1 control information, and the candidate formats of the L1 control information included in the first PRDCH at least include a first format and a second format, the first format and the second format respectively correspond to different device types of the Internet of Things devices, the number of control information bits included in the first format and the number of control information bits included in the second format are different, and only the L1 control information of the second format among the first format and the second format includes device type information.

[0626] As an embodiment, the device type includes at least one of Type 1, Type 2a, and Type 2b. The Internet of Things device of Type 1 monitors the number of control information bits corresponding to the first format, and at least one of the Internet of Things devices of Type 2a or the Internet of Things devices of Type 2b monitors the number of control information bits corresponding to the first format and the number of control information bits corresponding to the second format.

[0627] As an embodiment, the L1 control information included in the first PRDCH uses the second format, and a field included in the L1 control information included in the first PRDCH indicates a transmission mode, and the transmission mode includes at least one of unicast, multicast, or broadcast; when the transmission mode is indicated as multicast, at least one field included in the L1 control information included in the first PRDCH indicates a group identifier of the multicast.

[0628] As an embodiment, the L1 control information included in the first PRDCH uses the first format, and at least one field carried by the first PRDCH in the MAC layer indicates the device type of the Internet of Things device.

[0629] As an embodiment, the second transmitter 1302 sends the first PDRCH; wherein, when the L1 control information included in the first PRDCH uses the first format, a field in the MAC layer included in the first PRDCH indicates the number of chips occupied by the first PDRCH; when the L1 control information included in the first PRDCH uses the second format, a field included in the L1 control information included in the first PRDCH indicates the number of chips occupied by the first PDRCH, and the chips include at least one of an OOK time unit and a BPSK time unit.

[0630] As an embodiment, the first PRDCH includes a data sub-signal and a control sub-signal. The control sub-signal carries L1 control information, and the data sub-signal carries data information bits. The length of the time-domain interval between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than a first time interval. The first time interval is equal to an absolute time or equal to a plurality of OOK time units.

[0631] As an embodiment, the target power value is equal to the transmission power value of the first PRDCH, and the target power value is equal to the smaller value compared between a first upper limit value and a first power value; at least one of the first upper limit value and the first power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0632] Example 14

[0633] Embodiment 14 exemplifies a schematic diagram of the structure of an A-IoT device according to an embodiment of the present application, as shown in the appendix Figure 14 shown.

[0634] appendix Figure 14In the figure, the A-IoT device 1400 includes an antenna 1401, an energy-related module 1404, and a processing-related module 1408. The A-IoT device 1400 may also include a matching network 1402, which is used to match the impedance between the antenna 1401 and other components (including the radio frequency (RF) energy harvester 1403 and the reception-related module 1409). The A-IoT device 1400 may also include an energy harvester, which may be the RF energy harvester 1403 or a non-RF energy harvester 1407. The RF energy harvester 1403 may include a rectifier that performs the conversion of RF signals (AC) to DC. The RF energy harvester 1403 and the receiver / transmitter may share the antenna 1401, or the RF energy harvester 1403 and the receiver / transmitter may also use independent antennas. The energy-related module 1404 may include a Power management unit (PMU) 1405; the PMU 1405 is responsible for storing the energy from the energy harvester into the energy storage 1406 and supplying power to the active component blocks that require power supply. The energy-related module 1404 may also include an Energy storage 1406; the energy storage 1406 stores the energy collected from the energy harvester, and the energy storage 1406 may be a capacitor. The processing-related module 1408 may include BB (BaseBand) logic 1413, Memory 1418, and a clock generator 1419; the BB logic 1413 may include a decoder 1414, a controller 1415, and an encoder 1416; the Memory 1418 may include two types. One is a Non-Volatile Memory (NVM), such as EEPROM, which is used to permanently store the device ID. The other is a register, which is used to temporarily save the information that is only temporarily required for operation when the energy in the energy storage 1406 is available; the clock generator 1419 provides the required clock signals. The processing-related module 1408 may also include Reception related blocks 1409 and Transmission related blocks 1417. For different A-IoT devices, the Reception related blocks 1409 and the Transmission related blocks 1417 may include different modules.

[0635] As an example, for an A-IoT device 1400 with a peak power consumption of about 1 μW, the receiving related module 1409 may include an RF BPF 1410, a radio frequency envelope detector (RF-ED), a BB LPF 1411, and a comparator 1412. The transmitting related module 1417 may include a backscatter modulator.

[0636] As a non-limiting example, the output of the matching network 1402 is sequentially processed by the RF BPF 1410, the radio frequency envelope detector, the BB LPF 1411, and the comparator 1412 and then input to the BB logic 1413. The output of the BB logic 1413 is processed by the backscatter modulator and then transmitted by the antenna 1401.

[0637] As an example, for an A-IoT device 1400 with a peak power consumption less than or equal to a few hundred μW, if an external carrier wave is used, the receiving related module 1409 may include an RF BPF 1410, an LNA (Low-noise amplifier), a radio frequency envelope detector, a BB amplifier, a BB LPF 1411, and a comparator / N-bit ADC 1412. The transmitting related module 1417 may include a large frequency shifter (e.g., dozens of megahertz), a backscatter modulator, and a reflection amplifier. At least one of R2D (Reader to device) / CW2D (Carrier-wave, or carrier-wave node, to device) and D2R (Device to reader) may be amplified by the reflection amplifier or the LNA. The large frequency shifter transfers the backscattered signal from one frequency (e.g., the FDD-DL frequency) to another frequency (e.g., the FDD-UL frequency).

[0638] As a non-limiting example, the output of the matching network 1402 is sequentially processed by the RF BPF 1410, the LNA, the radio frequency envelope detector, the BB amplifier, the BB LPF 1411, and the comparator / N-bit ADC 1412 and then input to the BB logic 1413. The output of the BB logic 1413 is processed by the large frequency shifter, the backscatter modulator, and the reflection amplifier and then transmitted by the antenna 1401.

[0639] As an example, for an A-IoT device 1400 with a peak power consumption less than or equal to a few hundred μW, if an internally-generated carrier wave is adopted and an RF envelope detector receiver is used, the receiving-related module 1409 may include an RF BPF 1410, an LNA, an RF envelope detector, a BB amplifier, a BB LPF 1411, and a comparator / N-bit ADC 1412. The transmitting-related module 1417 may include a Tx Modulator, a Digital to Analog Converter (DAC), a Lowpass filter, a mixer, a LO (Local oscillator) / FLL ( / PLL), and a Power amplifier (PA).

[0640] As a non-limiting example, the output of the matching network 1402 is sequentially processed by an RF BPF 1410, an LNA, an RF envelope detector, a BB amplifier, a BB LPF 1411, and a comparator / N-bit ADC 1412 and then input to the BB logic 1413. The output of the BB logic 1413 is transmitted by the antenna 1401 after being processed by a Tx Modulator, a Digital to Analog Converter, a Lowpass filter, a mixer, a LO / FLL ( / PLL), and a Power amplifier.

[0641] As an example, for an A-IoT device 1400 with a peak power consumption less than or equal to a few hundred μW, if an internally-generated carrier wave is adopted and an IF envelope detector receiver is used, the receiving-related module 1409 may include an RF BPF 1410, an LNA, a mixer, an IF amplifier, an IF filter, an IF envelope detector (IF-ED), a BB amplifier, a BB LPF 1411, and a comparator / N-bit ADC 1412. The transmitting-related module 1417 may include a transmit modulator, a digital-to-analog converter, a low-pass filter, a mixer, an LO / FLL( / PLL), and a power amplifier. The IF amplifier amplifies the IF signal. The IF filter filters out unwanted RF and LO signals. The IF envelope detector detects the envelope from the IF signal. The mixer in the receiving-related module 1409 down-converts the RF signal to the IF stage. Depending on the implementation, there may be one or two mixers for the transmitter and the receiver.

[0642] As a non-limiting example, the output of the matching network 1402 is sequentially processed by an RF BPF 1410, an LNA, a mixer, an IF amplifier, an IF filter, an IF envelope detector, a BB amplifier, a BB LPF 1411, and a comparator / N-bit ADC 1412 and then input to the BB logic 1413. The output of the BB logic 1413 is processed by a transmit modulator, a digital-to-analog converter, a low-pass filter, a mixer, an LO / FLL( / PLL), and a power amplifier and then transmitted by the antenna 1401.

[0643] As an example, for an A-IoT device 1400 with a peak power consumption less than or equal to a few hundred μW, if an internally-generated carrier wave is adopted and a Zero IF (ZIF) receiver is used, the receiving-related module 1409 may include an RF BPF 1410, an LNA, a mixer, a BB amplifier, a BB LPF 1411, and a comparator / N-bit ADC 1412. The transmitting-related module 1417 may include a transmit modulator, a digital-to-analog converter, a low-pass filter, a mixer, an LO / FLL( / PLL), and a power amplifier. The mixer in the receiving-related module 1409 down-converts the RF signal to the BB stage. Depending on the implementation, there may be one or two mixers for the transmitter and the receiver.

[0644] As a non-limiting example, the output of the matching network 1402 is successively processed by the RF BPF 1410, LNA, mixer, BB amplifier, BB LPF 1411, comparator / N-bit ADC 1412 and then input to the BB logic 1413. The output of the BB logic 1413 is processed by a transmit modulator, digital-to-analog converter, low-pass filter, mixer, LO / FLL( / PLL), and power amplifier and then transmitted by the antenna 1401.

[0645] In the above-mentioned several embodiments, the RF BPF 1410 is used to enhance selectivity. Based on implementation, the RF BPF 1410 may not exist. The BB LPF 1411 is used to filter out harmonics and high-frequency components to improve the input signal quality of the comparator / ADC 1412. Based on implementation, the BB LPF 1411 may not exist. The comparator 1412 is used to detect the high / low of the input signal. The backscatter modulator is used to convert the impedance into a modulated backscatter signal carrying the transmit signal from the BB logic 1413. The LNA is used to increase the signal strength and receive sensitivity. The RF envelope detector is used to detect the envelope from the RF signal. The BB amplifier is used to amplify the signal to increase the signal strength. The transmit modulator is used to modulate the baseband bits according to the modulation method; the transmit modulator may be a part of the BB logic 1413. The digital-to-analog converter is used to convert the digital signal into an analog signal. The low-pass filter is used to filter out unwanted signals. The mixer in the transmit-related module 1417 is used to up-convert the baseband signal to the RF range. The LO is used to generate the carrier frequency; the FLL( / PLL) can be used for frequency synthesis. Based on implementation, the FLL( / PLL) may not exist. The power amplifier is used to amplify the transmit signal.

[0646] As an example, the A-IoT device is the IoT device in this application.

[0647] It should be specifically noted that the structure of the A-IoT device in this example does not limit the specific implementation form of the A-IoT in this application. Specifically, according to the different functions and actual application scenarios of the A-IoT device, the A-IoT device may adopt the structure of the A-IoT device in this example, may also include only some modules in the structure of the A-IoT device in this example, or may also include Figure 14 other modules not shown.

[0648] Those of ordinary skill in the art can understand that all or part of the steps in the above methods can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk, or an optical disc, etc. Optionally, all or part of the steps of the above embodiments can also be implemented using one or more integrated circuits. Correspondingly, each module unit in the above embodiments can be implemented in a hardware form or in the form of a software function module. This application is not limited to any specific form of the combination of software and hardware. The terminal or base station or UE or terminal in this application includes, but is not limited to, mobile phones, tablet computers, laptops, wireless network cards, low-power devices, Internet of Things devices, eMTC devices, NB-IoT devices, vehicle-mounted communication devices, aircraft, airplanes, drones, remote-controlled airplanes, test devices, test equipment, test instruments, and other devices. The base station device or base station or network-side device in this application includes, but is not limited to, macrocell base stations, microcell base stations, home base stations, relay base stations, eNBs, gNBs, transmission and reception nodes TRP, relay satellites, satellite base stations, aerial base stations, test devices, test equipment, test instruments, and other devices.

[0649] Those skilled in the art should understand that the present invention can be implemented in other specified forms without departing from its core or basic characteristics. Therefore, the presently disclosed embodiments should in any event be regarded as descriptive rather than restrictive. The scope of the invention is determined by the appended claims rather than the foregoing description, and all changes within the meaning and range of equivalents thereof are considered to be included therein.

Claims

1. A method used in a terminal, characterized in that: include: Sending a first PRDCH, where the first PRDCH adopts OOK; The first PRDCH includes L1 control information, and candidate formats of the L1 control information included in the first PRDCH include at least a first format and a second format. The first format and the second format are respectively for different device types of receivers of the first PRDCH. The number of control information bits included in the first format and the number of control information bits included in the second format are different. Among the first format and the second format, only the L1 control information in the second format includes device type information.

2. The method according to claim 1, characterized in that The device type includes at least one of type 1, type 2a and type 2b, the type 1 IoT device monitors the number of control information bits corresponding to the first format, and at least one of the type 2a IoT device or the type 2b IoT device monitors the number of control information bits corresponding to the first format and the number of control information bits corresponding to the second format.

3. The method according to claim 1 or 2, characterized in that The L1 control information included in the first PRDCH adopts the second format, and a field included in the L1 control information included in the first PRDCH indicates a transmission mode, and the transmission mode includes at least one of unicast, multicast or broadcast; when the transmission mode is indicated as multicast, at least one field included in the L1 control information included in the first PRDCH indicates a multicast group identifier.

4. The method according to any one of claims 1 to 3, characterized in that: The L1 control information included in the first PRDCH adopts the first format, and at least one MAC layer field carried by the first PRDCH indicates a device type of a receiver of the first PRDCH.

5. The method according to any one of claims 1 to 4, characterized in that: include: Receiving a first PDRCH; Among them, when the L1 control information included in the first PRDCH adopts the first format, a MAC layer field included in the first PRDCH indicates the number of code chips occupied by the first PDRCH; when the L1 control information included in the first PRDCH adopts the second format, a field included in the L1 control information included in the first PRDCH indicates the number of code chips occupied by the first PDRCH, and the code chips include at least one of OOK time units and BPSK time units.

6. The method according to any one of claims 1 to 5, characterized in that: The first PRDCH includes a data sub-signal and a control sub-signal, the control sub-signal carries L1 control information, the data sub-signal carries data information bits, the time domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols that is not less than a first time interval, and the first time interval is equal to absolute time or equal to multiple OOK time units.

7. The method according to any one of claims 1 to 6, characterized in that: The target power value is equal to the transmission power value of the first PRDCH, and the target power value is equal to the smaller value between the first upper limit value and the first power value; at least one of the first upper limit value or the first power value depends on the number of OOK time units included in an OFDM symbol occupied by the first PRDCH in the time domain.

8. A terminal, characterized in that: The terminal includes: one or more processors and a memory; the memory is coupled to the one or more processors, the memory is used to store computer program code, the computer program code includes computer instructions, and the one or more processors call the computer instructions to enable the terminal to execute the method described in any one of claims 1-7.

9. A method for an Internet of Things device, characterized in that: include: receiving a first PRDCH, where the first PRDCH adopts OOK; The first PRDCH includes L1 control information, and candidate formats of the L1 control information included in the first PRDCH include at least a first format and a second format. The first format and the second format are respectively for different device types of the Internet of Things devices. The number of control information bits included in the first format and the number of control information bits included in the second format are different. Among the first format and the second format, only the L1 control information in the second format includes device type information.

10. The method according to claim 9, characterized in that The device type includes at least one of type 1, type 2a and type 2b, the IoT device of type 1 monitors the number of control information bits corresponding to the first format, and at least one of the IoT device of type 2a or the IoT device of type 2b monitors the number of control information bits corresponding to the first format and the number of control information bits corresponding to the second format.

11. The method according to claim 9 or 10, characterized in that The L1 control information included in the first PRDCH adopts the second format, and a field included in the L1 control information included in the first PRDCH indicates a transmission mode, and the transmission mode includes at least one of unicast, multicast or broadcast; when the transmission mode is indicated as multicast, at least one field included in the L1 control information included in the first PRDCH indicates a multicast group identifier.

12. The method according to any one of claims 9 to 11, characterized in that: The L1 control information included in the first PRDCH adopts the first format, and at least one MAC layer field carried by the first PRDCH indicates the device type of the Internet of Things device.

13. The method according to any one of claims 9 to 12, characterized in that: include: Sending a first PDRCH; Among them, when the L1 control information included in the first PRDCH adopts the first format, a MAC layer field included in the first PRDCH indicates the number of code chips occupied by the first PDRCH; when the L1 control information included in the first PRDCH adopts the second format, a field included in the L1 control information included in the first PRDCH indicates the number of code chips occupied by the first PDRCH, and the code chips include at least one of OOK time units and BPSK time units.

14. The method according to any one of claims 9 to 13, characterized in that: The first PRDCH includes a data sub-signal and a control sub-signal, the control sub-signal carries L1 control information, the data sub-signal carries data information bits, the time domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols that is not less than a first time interval, and the first time interval is equal to absolute time or equal to multiple OOK time units.

15. The method according to any one of claims 9 to 14, characterized in that: The target power value is equal to the transmission power value of the first PRDCH, and the target power value is equal to the smaller value between the first upper limit value and the first power value; at least one of the first upper limit value or the first power value depends on the number of OOK time units included in an OFDM symbol occupied by the first PRDCH in the time domain.

16. An Internet of Things device, characterized in that: The Internet of Things device includes: one or more processors and a memory; the memory is coupled to the one or more processors, the memory is used to store computer program code, the computer program code includes computer instructions, and the one or more processors call the computer instructions to enable the Internet of Things device to execute the method described in any one of claims 9-15.

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