A method and apparatus in a node for internet of things communication in wireless communication

Abstract

The application discloses a method and device for Internet of Things communication in a node for wireless communication. The node receives a first information block; transmits a first PRDCH; the first information block configures the first PRDCH; the first PRDCH adopts OOK; the first PRDCH triggers an Internet of Things access process, a transmission power value of the first PRDCH is equal to a smaller value compared between a maximum output power value and a first transmission power value, the maximum output power value depends on a power level of a transmitter of the first PRDCH, and the first transmission power value depends on a value of a first counter; whether the first counter continues counting depends on whether a terminal successfully receives a PDRCH associated with the first PRDCH. The application optimizes power control and improves transmission quality.

Description

Technical Field

[0001] This application relates to transmission methods and apparatus in wireless communication systems, and more particularly to schemes and apparatus for power control of signals in wireless communication. Background Technology

[0002] The application scenarios of future wireless communication systems are becoming increasingly diversified, and different application scenarios place different performance requirements on the system. To meet the diverse performance needs of various application scenarios, research on New Radio (NR) (or 5G) technology was initiated at the 3GPP (3rd Generation Partner Project) RAN (Radio Access Network) #72 plenary meeting. With the widespread application of 5G, new business models and application scenarios are constantly emerging, such as the Ambient Internet of Things (IoT). Existing 5G standards cannot fully meet these new demands, therefore 3GPP is preparing to begin related preliminary research. Summary of the Invention

[0003] The 5G NR system initiated research on Ambient Internet of Things (A-IoT) in Rel-19. In this Ambient Physical Network (APN), OOK (Output of Kinematics) is expected to be used for transmission between readers and IoT devices, and between IoT devices and readers. This research is still in its early stages. The applicant anticipates that A-IoT will also become an important component of future 6G networks. Furthermore, the applicant's research has revealed that the transmit power of OOK-based signals emitted by terminals acting as readers in the A-IoT requires new support and definition.

[0004] This application discloses a solution to the problem of power control for signals using OOK (Out-of-Kinetic) signals. It should be noted that the description in this application only uses reader-to-IoT device transmission as a typical application scenario or example; this application is also applicable to 6G networks or other scenarios facing similar problems in the future (e.g., scenarios where OOK transmission power needs to be considered, or scenarios where the power of OOK signals needs to be increased, such as scenarios supporting energy saving, or scenarios supporting user equipment-to-user equipment transmission, or for different application scenarios, such as eMBB, URLLC, full-duplex networks, non-terrestrial networks, sensor-integrated networks, smart metasurfaces, terahertz networks, V2X can also achieve similar technical effects). Furthermore, using a unified solution for different scenarios (including but not limited to eMBB, URLLC, energy saving, IoT, full-duplex networks, non-terrestrial networks, sensor-integrated networks, smart metasurfaces, terahertz networks, V2X scenarios) or different application parameters also helps reduce hardware complexity and cost. Where there is no conflict, the embodiments and features in the embodiments used in the terminal of this application can be applied to the devices used in the IoT devices or base stations of this application, and vice versa.

[0005] This application discloses a method for use in a terminal, characterized by comprising:

[0006] Receive the first information block;

[0007] Send the first PRDCH; configure the first PRDCH in the first information block; use OOK for the first PRDCH;

[0008] Wherein, the first PRDCH triggers the IoT access process, the transmit power value of the first PRDCH is equal to the smaller value between the maximum output power value and the first transmit power value, the maximum output power value depends on the power level of the sender of the first PRDCH, the first transmit power value depends on the value of the first counter; whether the first counter continues to count depends on whether the terminal successfully receives the PDRCH associated with the first PRDCH.

[0009] It should be noted that "transmitting the first PRDCH" is a common expression in the art, meaning that it is transmitted on the first PRDCH, or that it means that the signal (e.g., modulation symbol) on the first PRDCH is transmitted; the above expression is beneficial to maintain consistency with the general expression in the art.

[0010] As an example, considering the terminal as a reader device, a counter is introduced for the IoT access process. When sending the initial paging signal, a lower transmission power is used to save power and reduce interference to other links. If no response (or Msg1) is received after sending the paging signal, the counter is used to count. When the paging signal is sent again, a power boost is performed, and the boosted power depends on the value of the counter. This increases the probability of successful access of IoT devices when paging is repeated, optimizes the transmission power of the PRDCH, and improves performance.

[0011] According to one aspect of this application, the above method is characterized in that the PDRCH associated with the first PRDCH carries Msg1, and when the terminal does not receive Msg1 within the time window of the PDRCH associated with the first PRDCH, the value of the first counter is incremented by 1.

[0012] According to one aspect of this application, the above method is characterized in that the first transmit power value depends on the product of the value of the first counter and the first step length, wherein the first step length is the power boosting step length of the PRDCH used in the Internet of Things access process.

[0013] According to one aspect of this application, the above method is characterized in that the first step length is the step length corresponding to the device type of the receiver of the first PRDCH among the plurality of candidate step lengths, the device type including at least one of type 1, type 2a and type 2b.

[0014] According to one aspect of this application, the method is characterized in that the first transmit power value is equal to the smaller of the first power value and the second power value, the first power value depending on the downlink path loss, and the second power value depending on the value of the first counter.

[0015] According to one aspect of this application, the above method is characterized by comprising:

[0016] Receive the first PDRCH; the first PDRCH is a response to the first PDRCH;

[0017] The first PDRCH carries a first identifier, which is either the identifier of the sender of the first PDRCH or an identifier randomly generated by the sender of the first PDRCH.

[0018] According to one aspect of this application, the method is characterized in that at least one of the maximum output power value and the first transmit power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0019] This application discloses a terminal, characterized in that the terminal includes:

[0020] One or more processors and memory;

[0021] The memory is coupled to the one or more processors and is used to store computer program code, which includes computer instructions. The one or more processors invoke the computer instructions to cause the terminal to execute the above-described method.

[0022] This application discloses a terminal, characterized in that the terminal includes:

[0023] One or more processors and memory;

[0024] The memory is coupled to the one or more processors and is used to store computer program code, which includes computer instructions. The one or more processors invoke the computer instructions to cause the terminal to execute the above-described method.

[0025] This application discloses a method for use in Internet of Things (IoT) devices, characterized by comprising:

[0026] Receive the first PRDCH; configure the first PRDCH with the first information block; the first PRDCH uses OOK;

[0027] Wherein, the first PRDCH triggers the IoT access process, the transmit power value of the first PRDCH is equal to the smaller value between the maximum output power value and the first transmit power value, the maximum output power value depends on the power level of the sender of the first PRDCH, the first transmit power value depends on the value of the first counter; whether the first counter continues to count depends on whether the terminal successfully receives the PDRCH associated with the first PRDCH.

[0028] According to one aspect of this application, the method is characterized in that the PDRCH associated with the first PRDCH carries Msg1, and when the sender of the first PRDCH does not receive Msg1 within the time window of the PDRCH associated with the first PRDCH, the value of the first counter is incremented by 1.

[0029] According to one aspect of this application, the above method is characterized in that the first transmit power value depends on the product of the value of the first counter and the first step length, wherein the first step length is the power boosting step length of the PRDCH used in the Internet of Things access process.

[0030] According to one aspect of this application, the above method is characterized in that multiple candidate step lengths correspond to multiple device types, and the first step length is the step length corresponding to the device type of the IoT device among the multiple candidate step lengths, wherein the device type includes at least one of type 1, type 2a and type 2b.

[0031] According to one aspect of this application, the method is characterized in that the first transmit power value is equal to the smaller of the first power value and the second power value, the first power value depending on the downlink path loss, and the second power value depending on the value of the first counter.

[0032] According to one aspect of this application, the above method is characterized by comprising:

[0033] Send the first PDRCH; the first PDRCH is a response to the first PDRCH;

[0034] The first PDRCH carries a first identifier, which is either the identifier of the IoT device or a randomly generated identifier by the IoT device.

[0035] According to one aspect of this application, the method is characterized in that at least one of the maximum output power value and the first transmit power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0036] This application discloses an Internet of Things (IoT) device, characterized in that the IoT device includes: one or more processors and a memory;

[0037] The memory is coupled to the one or more processors and is used to store computer program code, which includes computer instructions. The one or more processors invoke the computer instructions to cause the terminal to execute the above-described method.

[0038] As an example, compared with conventional solutions, this application has the following advantages:

[0039] Power control has been optimized;

[0040] Improved transmission performance;

[0041] This improved the reliability of transmission and enhanced the robustness of the system. Attached Figure Description

[0042] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0043] Figure 1 A flowchart of terminal transmission according to an embodiment of this application is shown;

[0044] Figure 2 A schematic diagram of a network architecture according to an embodiment of this application is shown;

[0045] Figure 3 A schematic diagram of a wireless protocol architecture for the user plane and control plane according to an embodiment of this application is shown;

[0046] Figure 4 A schematic diagram of a terminal and an Internet of Things (IoT) device according to an embodiment of this application is shown;

[0047] Figure 5 A flowchart illustrating the transmission between a terminal and an IoT device according to an embodiment of this application is shown;

[0048] Figure 6 A schematic diagram showing the relationship between the terminal receiving Msg1 and the value of a first counter according to an embodiment of this application is illustrated;

[0049] Figure 7 A schematic diagram showing the relationship between a first transmit power value, a first counter value, and a first step length according to an embodiment of this application is illustrated.

[0050] Figure 8 A schematic diagram showing multiple candidate step sizes corresponding to multiple device types according to one embodiment of this application is illustrated;

[0051] Figure 9 A schematic diagram showing the relationship between a first transmit power value, a first power value, and a second power value according to an embodiment of this application is illustrated.

[0052] Figure 10 A schematic diagram illustrating the relationship between a first PRDCH and a first PDRCH according to an embodiment of this application is shown;

[0053] Figure 11 A schematic diagram of an OOK time unit according to an embodiment of this application is shown;

[0054] Figure 12 A structural block diagram of a processing apparatus for a terminal according to an embodiment of this application is shown;

[0055] Figure 13 A structural block diagram of a processing apparatus for an Internet of Things device according to an embodiment of this application is shown;

[0056] Figure 14 A schematic diagram of the structure of an A-IoT device according to an embodiment of this application is shown. Detailed Implementation

[0057] The technical solution of this application will be further described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0058] Example 1

[0059] Example 1 illustrates a flowchart 100 of terminal transmission according to an embodiment of this application, as shown in the attached diagram. Figure 1 As shown. In the appendix Figure 1 In the diagram, each box represents a step. It is particularly important to emphasize that the order of the boxes in the diagram does not restrict the chronological order of the steps they represent.

[0060] In Embodiment 1, the terminal in this application receives a first information block in step 101; sends a first PRDCH in step 102; the first information block configures the first PRDCH; the first PRDCH uses OOK; wherein, the first PRDCH triggers the IoT access process, the transmit power value of the first PRDCH is equal to the smaller value between the maximum output power value and the first transmit power value, the maximum output power value depends on the power level of the sender of the first PRDCH, the first transmit power value depends on the value of the first counter; whether the first counter continues to count depends on whether the terminal successfully receives the PDRCH associated with the first PRDCH.

[0061] As an example, the terminal is a reader device of the Internet of Things (IoT) device in this application.

[0062] As an example, the IoT device in this application is an Ambient IoT (A-IoT) device.

[0063] As an example, the IoT device in this application is a low-power IoT device.

[0064] As one embodiment, the first information block is transmitted via an air interface or a wireless interface.

[0065] As one embodiment, the first information block includes all or part of a higher-layer signaling or physical-layer signaling.

[0066] As one embodiment, the first information block includes all or part of an RRC (Radio Resource Control) layer signaling or a MAC (Medium Access Control) layer signaling.

[0067] As an example, the first information block is carried via PDSCH (Physical Downlink Shared Channel).

[0068] As one embodiment, the first information block is either cell-specific or user equipment-specific.

[0069] As one embodiment, the first information block is configured for the bandwidth part (BWP) (Per BWP). As a supplementary embodiment to the above embodiment, existing designs can be reused for BWP configuration, reducing standardization efforts.

[0070] As an example, the first information block includes at least one field in a DCI (Downlink Control Information) format.

[0071] As one embodiment, the first information block includes more than one sub-information block, each of the sub-information blocks being an IE (Information Element) or a field in the RRC signaling to which the first information block belongs; the one or more sub-information blocks included in the first information block configure the first PRDCH.

[0072] As one example, the first information block includes at least one field in the IE "PRDCH-Config".

[0073] As an example, the first information block includes at least one field in the IE "BWP-R2DDedicated".

[0074] As one example, the first information block includes at least one field in the IE “R2D-Config”.

[0075] As an example, the first information block includes at least one field in the IE "R2D-BWP-Config".

[0076] As one example, the first information block includes at least one field in the IE "PRDCH-TxConfig".

[0077] As an example, the first information block includes at least one field in the IE "ServingCellConfig".

[0078] As an example, the first information block includes at least one field in the IE "BWP-UplinkCommon".

[0079] As an example, the first information block includes at least one field in the IE “BWP-Uplink”.

[0080] As one example, the first information block is transmitted within the terminal.

[0081] As one embodiment, the first information block is passed from the higher layer of the terminal to the physical layer of the terminal.

[0082] As one embodiment, the first information block is transmitted from the core network to the terminal.

[0083] As an example, the first information block is configured.

[0084] As an example, the first information block is pre-configured.

[0085] As an example, the first information block includes higher-level information, which helps reduce signaling overhead and standard impact while maintaining good compatibility.

[0086] As an example, the first information block is transmitted on the PDCCH (Physical Downlink Control Channel).

[0087] As an example, the first information block is transmitted on PDSCH (Physical Downlink Shared Channel).

[0088] As one embodiment, the first information block may include DCI or be transmitted on PDCCH, which can provide greater flexibility.

[0089] As an example, the first information block includes at least one field in the DCI format for scheduling R2D links.

[0090] As an example, the first information block includes at least one field in DCI format 5_X, where X is a non-negative integer.

[0091] As an example, the first information block includes at least one field in DCI format 6_X, where X is a non-negative integer.

[0092] As an example, the first information block adopts a new DCI format, which improves design flexibility.

[0093] As an example, the recipient of the first PRDCH is an IoT (Internet of Things) device.

[0094] As an example, the recipient of the first PRDCH is an Ambient IoT (A-IoT) device.

[0095] As an example, the recipient of the first PRDCH is an RFID (Radio Frequency Identification) device.

[0096] As an example, the recipient of the first PRDCH and the IoT device in this application are equivalent or can be used interchangeably.

[0097] As an example, the first PRDCH is a baseband signal or radio frequency signal of PRDCH (Physical Reader to Device Channel).

[0098] As one example, the first PRDCH is transmitted over a physical channel from the reader to the IoT device.

[0099] As an example, the first PRDCH carries physical layer control information.

[0100] As an example, the first PRDCH carries physical layer control information and higher layer control information.

[0101] As an example, the first PRDCH includes a preamble.

[0102] As an example, the first PRDCH does not include a preamble.

[0103] As an example, the first PRDCH carries all or part of the bits in a TB (transport block).

[0104] As an example, all or part of the bits in a TB are used to generate the first PRDCH.

[0105] As an example, the first PRDCH is a paging PRDCH.

[0106] As an example, the first PRDCH carries paging information.

[0107] As one example, the first PRDCH carries the paging message of the A-IoT device.

[0108] As an example, the first PRDCH carries a device ID of an A-IoT device.

[0109] As an example, the first PRDCH carries the device ID of the target receiver of the first PRDCH.

[0110] As an example, the first PRDCH carries a group identifier, which corresponds to multiple A-IoT devices.

[0111] As one example, the first PRDCH carries the identifiers of multiple A-IoT devices.

[0112] As one example, "the first PRDCH adopts OOK" includes: the first PRDCH is a signal that only includes high and low levels.

[0113] As an example, "the first PRDCH uses OOK" includes: the modulation scheme of the first PRDCH includes OOK.

[0114] As an example, "the first PRDCH uses OOK" includes: the generation process of the first PRDCH includes OOK.

[0115] As an example, "the first PRDCH uses OOK" includes: the encoding method of the first PRDCH includes OOK.

[0116] As an example, "the first PRDCH uses OOK" includes: OOK is used in the waveform of the first PRDCH.

[0117] As an example, "the first PRDCH adopts OOK" includes: the input sequence for the transform precoding of the first PRDCH is a bit sequence.

[0118] As an example, "the first PRDCH adopts OOK" includes: the input sequence of the transform precoding for the first PRDCH is not a complex numerical sequence.

[0119] As an example, "the first PRDCH adopts OOK" includes: the input sequence for transform precoding of the first PRDCH is an On / Off sequence.

[0120] As an example, "the first PRDCH adopts OOK" includes: the input sequence for the transform precoding of the first PRDCH is a high-low level sequence.

[0121] As an example, the input sequence for the transform precoding of the first PRDCH is a linearly encoded bit sequence.

[0122] As an example, the input sequence for the transform precoding of the first PRDCH is a Manchester-coded bit sequence.

[0123] As an example, the transform precoding for the first PRDCH includes DFT (Discrete Fourier Transform).

[0124] As an example, the transform precoding for the first PRDCH includes FFT (Fast Fourier Transform).

[0125] As an example, the number of RBs (resource blocks) occupied by the first PRDCH in the frequency domain is equal to... in 235 All are non-negative integers.

[0126] As an example, the first PRDCH is a high / low level signal or an On / Off signal.

[0127] As an example, the first PRDCH is generated by at least one of the following: CRC (Cyclic Redundancy Check) attachment, line coding, and OFDM-based OOK generation.

[0128] As one embodiment, “the first information block configures the first PRDCH” includes: the first information block indicates the time-frequency resources occupied by the first PRDCH.

[0129] As one embodiment, “the first information block configures the first PRDCH” includes: the first information block instructs the first PRDCH to use OOK.

[0130] As one embodiment, “the first information block configures the first PRDCH” includes: the first information block instructs or allocates a time-domain resource pool for the first PRDCH.

[0131] As one embodiment, “the first information block configures the first PRDCH” includes: the first information block instructs or assigns time-frequency resources for the first PRDCH.

[0132] As one embodiment, “the first information block configures the first PRDCH” includes: the first information block instructs or assigns a plurality of OFDM symbols for the first PRDCH.

[0133] As one embodiment, “the first information block configures the first PRDCH” includes: the first information block instructs or allocates an RB (resource block) or a subcarrier for the first PRDCH.

[0134] As one embodiment, “the first information block configures the first PRDCH” includes: the first information block indicates the subcarrier interval for the first PRDCH.

[0135] As one embodiment, “the first information block configures the first PRDCH” includes: the first information block indicates the subcarrier spacing used by the first PRDCH.

[0136] As one embodiment, “the first information block configures the first PRDCH” includes: the first information block indicates a resource pool that includes the resources of the first PRDCH in the frequency domain.

[0137] As one embodiment, “the first information block configures the first PRDCH” includes: the first information block indicates the BWP to which the first PRDCH belongs in the frequency domain.

[0138] As one embodiment, “the first information block configures the first PRDCH” includes: the first information block indicating the number of OOK chips included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0139] As one embodiment, “the first information block configures the first PRDCH” includes: the first information block indicating the length of at least one OOK chip included in an OFDM symbol occupied by the first PRDCH in the time domain.

[0140] As one embodiment, “the first information block configures the first PRDCH” includes: the first information block indicating the number of OOK chips included in at least one of the OFDM symbols mapped by the control information bits carried by the first PRDCH or the OFDM symbols mapped by the data information bits carried by the first PRDCH.

[0141] As one embodiment, “the first information block configures the first PRDCH” includes: the first information block indicating relevant parameters of the transmit power value of the first PRDCH.

[0142] As one embodiment, “the first information block configures the first PRDCH” includes: the first information block indicates the power control related parameters of the first PRDCH.

[0143] As one embodiment, “the first information block configures the first PRDCH” includes: the first information block indicates the P0 value in the power control of the first PRDCH.

[0144] As one embodiment, “the first information block configures the first PRDCH” includes: the first information block indicates the P0 value in the open loop power control of the first PRDCH.

[0145] As one embodiment, “the first information block configures the first PRDCH” includes: the first information block indicating the value of at least one parameter used in calculating or setting the maximum output power value.

[0146] As one embodiment, "the first information block configures the first PRDCH" includes: the first information block instructs the P of the first PRDCH. MAX,c value.

[0147] As one embodiment, “the first information block configures the first PRDCH” includes: the first information block indicating the value of at least one parameter used in calculating or setting the first transmit power value.

[0148] As one embodiment, “the first information block configures the first PRDCH” includes: the first information block indicating the value of at least one parameter used in calculating or setting the first power value in this application.

[0149] As one embodiment, “the first information block configures the first PRDCH” includes: the first information block indicating the value of at least one parameter used in calculating or setting the second power value in this application.

[0150] As one embodiment, "the first information block configures the first PRDCH" includes: the first information block instructs the P of the first PRDCH. O_PRDCH value.

[0151] As one embodiment, “the first information block configures the first PRDCH” includes: the first information block indicates the maximum transmission power value of the first PRDCH.

[0152] As an example, the IoT access process is the random access process for IoT devices in this application.

[0153] As an example, the IoT access process includes the contention-based random access process for IoT devices as described in this application.

[0154] As an example, the IoT access process includes the Contention-Free Random Access (CFRA) process for IoT devices as described in this application.

[0155] As one embodiment, the IoT access process includes a two-step Contention Based Random Access (CBRA) process for the IoT device in this application. As a supplementary embodiment, the two-step CBRA includes the IoT device sending Msg1 and the terminal responding with Msg2 in response to Msg1.

[0156] As one embodiment, the IoT access process includes a three-step Contention Based Random Access (CBRA) process for the IoT device described in this application. As a supplementary embodiment, the three-step CBRA includes the IoT device sending Msg1 (message 1), the terminal responding to Msg1 with Msg2 (message 2), and the IoT device sending Msg3 (message 3).

[0157] As an example, the IoT access process is an inventory process.

[0158] As an example, the IoT access process is an inventory and command process.

[0159] As one example, the IoT access process includes paging (or Msg0) and message 1 (Msg1).

[0160] As an example, the IoT access process includes paging (or Msg0), message 1 (Msg1), message 2 (Msg2), and message 3 (Msg3).

[0161] As an example, the IoT access process is triggered by the reader device of the IoT device in this application.

[0162] As an example, the IoT access process is triggered by the terminal.

[0163] As one embodiment, "the first PRDCH triggers the IoT access process" includes: the first PRDCH is used to trigger the IoT access process.

[0164] As one embodiment, "the first PRDCH triggers the IoT access process" includes: the first PRDCH carries paging information, and the terminal sends the first PRDCH and triggers the IoT access process.

[0165] As one embodiment, "the first PRDCH triggers the IoT access process" includes: the first PRDCH carries paging information, and the terminal initiates the IoT access process after sending the first PRDCH.

[0166] As one embodiment, "the first PRDCH triggers the IoT access process" includes: the first PRDCH carries paging information, and the terminal receives the PDRCH associated with the first PRDCH to trigger the IoT access process.

[0167] As one embodiment, "the first PRDCH triggers the IoT access process" includes: the first PRDCH carries paging information, and the IoT device in this application initiates the IoT access process after receiving the first PRDCH.

[0168] As one embodiment, "the first PRDCH triggers the IoT access process" includes: the first PRDCH carries paging information, and the IoT device in this application sends a PDRCH to initiate a random access process after receiving the first PRDCH.

[0169] As one example, "the first PRDCH triggers the IoT access process" includes: the first PRDCH triggers the initial IoT access process.

[0170] As one example, "the first PRDCH triggers an IoT access process" includes: the first PRDCH triggers a non-initial IoT access process.

[0171] As one example, "the first PRDCH triggers the IoT access process" includes: the first PRDCH triggers a re-transmitted IoT access process.

[0172] As an example, the first PRDCH triggers an IoT access process for a single device.

[0173] As an example, the first PRDCH triggers an IoT access process for a group of devices.

[0174] As an example, the first PRDCH triggers the IoT access process for all devices.

[0175] As an example, "the transmit power value of the first PRDCH is equal to the smaller value between the maximum output power value and the first transmit power value" includes: the transmit power value of the first PRDCH is the result of taking the smaller value between the maximum output power value and the first transmit power value.

[0176] As one embodiment, "the transmit power value of the first PRDCH is equal to the smaller value between the maximum output power value and the first transmit power value" includes: when the maximum output power value is greater than the first transmit power value, the transmit power value of the first PRDCH is equal to the first transmit power value; when the maximum output power value is less than the first transmit power value, the transmit power value of the first PRDCH is equal to the maximum output power value; when the maximum output power value is equal to the first transmit power value, the transmit power value of the first PRDCH is equal to the maximum output power value or the first transmit power value.

[0177] As an example, the unit of the transmit power value of the first PRDCH is watts or milliwatts.

[0178] As an example, the unit of the transmit power value of the first PRDCH is dBm.

[0179] As an example, the transmit power value of the first PRDCH is equal to the transmission occasion in the time domain and the transmission power in the uplink BWP in the frequency domain.

[0180] As an example, the transmit power value of the first PRDCH is the transmit power value of the first PRDCH at the antenna connector.

[0181] As an example, the transmit power value of the first PRDCH is the transmit power value of the baseband of the first PRDCH.

[0182] As an example, the transmit power value of the first PRDCH is the transmit power value of the first PRDCH at radio frequency.

[0183] As an example, the transmit power value of the first PRDCH does not include antenna gain.

[0184] As an example, the transmit power value of the first PRDCH includes the antenna gain.

[0185] As an example, the transmit power value of the first PRDCH corresponds to P PRDCH .

[0186] As an example, the transmit power value of the first PRDCH is the average power of the OOK used by the first PRDCH at all constellation points.

[0187] As an example, the transmit power value of the first PRDCH is the average of the high-level power and low-level power of the OOK used by the first PRDCH.

[0188] As an example, the transmit power value of the first PRDCH is half of the high-level power of the OOK used by the first PRDCH.

[0189] As an example, the transmit power value of the first PRDCH is the normalized transmit power value of the first PRDCH.

[0190] As an example, the transmit power value of the first PRDCH is the average of the energy levels of all levels in the OOK used by the first PRDCH.

[0191] As an example, the maximum output power value corresponds to P CMAX The value of .

[0192] As an example, the maximum output power value is the P value corresponding to the first PRDCH. CMAX，f，c The value of (i).

[0193] As an example, the maximum output power value is equal to the P corresponding to the first PRDCH. CMAX，f，c (i) is the difference between an offset value and an offset value.

[0194] As an example, the unit of the maximum output power value is dBm (millidecibels).

[0195] As an example, the unit of the maximum output power value is watts or milliwatts.

[0196] As an example, the maximum output power value is configured per carrier.

[0197] As an example, the maximum output power value is configured per cell.

[0198] As an example, the maximum output power value is the maximum output power allowed per carrier.

[0199] As an example, the maximum output power value is the configured maximum output power of the terminal.

[0200] As an example, the maximum output power value is the maximum output power (UE-configured maximum output power) configured by the terminal for the first PRDCH.

[0201] As an example, the maximum output power value is the value of the user-configured maximum output power.

[0202] As an example, the maximum output power value is the difference between the maximum output power configured in the terminal and an offset value.

[0203] As an example, the maximum output power value is the maximum output power (UE configured maximum output power) P of the terminal during the PRDCH transmission occasion i of the carrier f of the serving cell c. CMAX，f，c (i).

[0204] As an example, the maximum output power value is the maximum output power value configured for the R2D of the terminal.

[0205] As an example, the maximum output power value is within a certain range.

[0206] As an example, the range of the maximum output power value is a closed interval.

[0207] As an example, the maximum output power value is configured by the terminal itself within the range of the maximum output power value.

[0208] As an example, the maximum output power value may be greater than the first transmission power value, less than the first transmission power value, or equal to the first transmission power value.

[0209] As an example, the unit of the first transmit power value is dBm (millidecibels).

[0210] As an example, the unit of the first transmit power value is watts or milliwatts.

[0211] As an example, the first transmit power value is a variable or expression used to calculate the transmit power value of the first PRDCH.

[0212] As an example, the first transmit power value is the transmit power value of the first PRDCH of the terminal when there is no maximum output power limit.

[0213] As an example, the first transmit power value is the transmit power value calculated by open-loop power control when transmitting the first PRDCH.

[0214] As an example, the first transmit power value corresponds to P PRDCH .

[0215] As an example, the first transmit power value is the P value corresponding to the first PRDCH. PRDCH The value of (i).

[0216] As an example, the first transmit power value is the transmit power value of the first PRDCH that the terminal expects when there is no maximum output power and no reference uplink power limit.

[0217] As an example, the first transmit power value is the P corresponding to the first PRDCH when there is no reference uplink power limitation. PRDCH The value of (i).

[0218] As an example, the first transmit power value is determined by the number of RBs occupied by the first PRDCH, the target receive power value, and the path loss.

[0219] As an example, the first transmit power value is calculated using the number of RBs occupied by the first PRDCH, the target receive power value, the path compensation factor, and the path loss.

[0220] As an example, the first transmit power value is min(P) PRDCH，D (i), P PRDCH (i)), where min() represents the result of taking the minimum value, P PRDCH,D (i) is the transmit power value obtained from the power control of the virtual (or reference) uplink signal, P PRDCH (i) is the assumed transmit power value of the first PRDCH calculated by the terminal.

[0221] As an example, the sender of the first PRDCH is the terminal.

[0222] As an example, the power class of the transmitter of the first PRDCH is the maximum power set at the factory of the transmitter of the first PRDCH.

[0223] As an example, the power level of the sender of the first PRDCH includes a tolerance range.

[0224] As an example, the power level of the sender of the first PRDCH does not include tolerance range.

[0225] As an example, "the maximum output power value depends on the power class of the transmitter of the first PRDCH" includes: the range of the maximum output power value depends on the power class of the transmitter of the first PRDCH.

[0226] As one example, "the maximum output power value depends on the power level of the transmitter of the first PRDCH" includes: the power level of the transmitter of the first PRDCH is used to determine the range of values ​​for the maximum output power value.

[0227] As one example, "the maximum output power value depends on the power level of the transmitter of the first PRDCH" includes: different power levels of the transmitter of the first PRDCH correspond to different ranges of the maximum output power value.

[0228] As one example, "the maximum output power value depends on the power level of the transmitter of the first PRDCH" includes: the transmitter of the first PRDCH determines the range of the maximum output power value according to different predefined tables corresponding to different power levels.

[0229] As an example, "the maximum output power value depends on the power level of the transmitter of the first PRDCH" includes: the range of the maximum output power value depends on multiple parameters, and different power levels of the transmitter of the first PRDCH correspond to different predefined tables used to determine at least one of the multiple parameters.

[0230] As one example, "the maximum output power value depends on the power level of the transmitter of the first PRDCH" includes: the maximum output power is P CMAX,f，c P CMAX_L，f，c ≤P CMAX,f，c ≤P CMAX_H，f，c ,in

[0231] P CMAX_L，f，c =MIN{P EMAX,c -ΔT C,c , (P PowerClass -ΔP PowerClass )-MAX(MAX(MPR c +ΔMPR c A-MPR c )+

[0232] ΔT IB，c +ΔT C，c +ΔT RxSRS P-MPR c )},

[0233] P CMAX_H，f，c =MIN{P EMAX,c P PowerClass -ΔP PowerClass},

[0234] P EMAX,c The value indicated by the high-level parameter, P PowerClass It is the maximum terminal power, obtained according to a predefined table per band per power level, ΔP PowerClass It is the offset of the maximum terminal power, which depends on user capabilities, network-side configuration, number of symbols transmitted uplink, power level of the sender of the first PRDCH, modulation scheme, waveform, etc., ΔT IB，c It is the additional tolerance of the serving cell, ΔT C，c It is the power lower limit offset, MPR c It is the maximum power reduction (A-MPR). c It is the additional maximum allowable power reduction, ΔMPR c It is the maximum power reduction offset, ΔTRxSRS It is the offset during SRS transmission, and it is the power management maximum power reduction. At least one of these parameters depends on the power level of the sender of the first PRDCH.

[0235] As an example, the maximum output power value also depends on the operating band number to which the frequency band occupied by the first PRDCH belongs.

[0236] As an example, the maximum output power value also depends on the position of the frequency domain resources occupied by the first PRDCH in the maximum transmission bandwidth.

[0237] As an example, the maximum output power value also depends on the capability of the transmitter of the first PRDCH.

[0238] As an example, the maximum output power value also depends on the configuration of higher-level parameters.

[0239] As one embodiment, "the first transmit power value depends on the value of the first counter" includes: the first transmit power value is related to the value of the first counter.

[0240] As one embodiment, "the first transmit power value depends on the value of the first counter" includes: the value of the first counter is used to determine the first transmit power value.

[0241] As one embodiment, "the first transmit power value depends on the value of the first counter" includes: the value of the first counter is used to calculate the first transmit power value.

[0242] As one embodiment, "the first transmit power value depends on the value of the first counter" includes: the value of the first counter is used by the terminal to calculate or determine the first transmit power value.

[0243] As one embodiment, "the first transmit power value depends on the value of the first counter" includes: the first transmit power value is linearly related to the value of the first counter.

[0244] As one embodiment, "the first transmit power value depends on the value of the first counter" includes: the first transmit power value is linearly correlated with the value of the first counter, and the correlation coefficient between the first transmit power value and the value of the first counter is predefined or configured.

[0245] As one embodiment, "the first transmit power value depends on the value of the first counter" includes: the first transmit power value is linearly related to the value of the first counter decremented by one.

[0246] As one embodiment, "the first transmit power value depends on the value of the first counter" includes: the first transmit power value depends on whether the value of the first counter is greater than 1.

[0247] As one embodiment, "the first transmit power value depends on the value of the first counter" includes: at least one parameter used to calculate the first transmit power value depends on the value of the first counter.

[0248] As one embodiment, "the first transmit power value depends on the value of the first counter" includes: at least one parameter included in the first transmit power value depends on the value of the first counter.

[0249] As one embodiment, "the first transmit power value depends on the value of the first counter" includes: calculating the target reception power value of the first transmit power value depends on the value of the first counter.

[0250] As one embodiment, "the first transmit power value depends on the value of the first counter" includes: calculating the target reception power value PRDCH_RECEIVED_TARGET_POWER of the first transmit power value depending on the value of the first counter.

[0251] As one embodiment, "the first transmit power value depends on the value of the first counter" includes: calculating the target reception power value P of the first transmit power value. PRDCH,target，f，c It depends on the value of the first counter.

[0252] As one embodiment, "the first transmit power value depends on the value of the first counter" includes: calculating the power offset P of the first transmit power value. offset It depends on the value of the first counter.

[0253] As one embodiment, "the first transmit power value depends on the value of the first counter" includes: the first transmit power value is P PRDCH (i), P PRDCH (i)=P PRDCH,target,f，c +PL dBm, where P PRACH,target,f，c For the target received power value of the first PRDCH, PL is the path loss compensation amount, P PRACH,target,f，cIt depends on the value of the first counter.

[0254] As one embodiment, "the first transmit power value depends on the value of the first counter" includes: the first transmit power value is P PRDCH (i), P PRDCH (i)=P PRDCH,target,f，c +PL dBm, where P PRACH,target,f，c For the target received power value of the first PRDCH, PL is the path loss compensation amount, P PRACH,target,f，c It depends on whether the value of the first counter is greater than 1.

[0255] As one embodiment, "the first transmit power value depends on the value of the first counter" includes: the first transmit power value is P PRDCH (i), P PRDCH (i)=P PRDCH,target,f，c +PL dBm, where P PRACH,target,f，c For the target received power value of the first PRDCH, PL is the path loss compensation amount. When the value of the first counter is greater than 1, P... PRACH,target,f，c For a value, when the value of the first counter is equal to 1, the P PRACH,target，f，c For another value.

[0256] As one embodiment, "the first transmit power value depends on the value of the first counter" includes: the first transmit power value is P PRDCH (i), P PRDCH (i)=P PRDCH,target,f，c +PL dBm, where P PRACH,target,f，c For the target received power value of the first PRDCH, PL is the path loss compensation amount, P PRACH,target,f，c It is linearly related to the value of the first counter.

[0257] As one embodiment, "the first transmit power value depends on the value of the first counter" includes: the target receive power value used to calculate the first transmit power value is PRDCH_RECEIVED_TARGET_POWER, and PRDCH_RECEIVED_TARGET_POWER is linearly related to the value of the first counter.

[0258] As one embodiment, "the first transmit power value depends on the value of the first counter" includes: the target receive power value used to calculate the first transmit power value is PRDCH_RECEIVED_TARGET_POWER, PRDCH_RECEIVED_TARGET_POWER = A + X * PRDCH_POWER_RAMPING_COUNTER, where A includes the initial target receive power of PRDCH, X is the step size for each power boost, and PRDCH_POWER_RAMPING_COUNTER is the value of the first counter.

[0259] As one embodiment, "the first transmit power value depends on the value of the first counter" includes: the target receive power value used to calculate the first transmit power value is PRDCH_RECEIVED_TARGET_POWER, PRDCH_RECEIVED_TARGET_POWER = A + X * (PRDCH_POWER_RAMPING_COUNTER - 1), where A includes the initial target receive power of PRDCH, X is the step size of each power boost, and PRDCH_POWER_RAMPING_COUNTER is the value of the first counter.

[0260] As one embodiment, "the first transmit power value depends on the value of the first counter" includes: the first transmit power value is min(P) PRDCH,D (i), P PRDCH (i)), where min() represents the result of taking the minimum value, P PRDCH,D (i) is the transmit power value obtained from the power control of the virtual (or reference) uplink signal, P PRDCH (i) depends on the value of the first counter.

[0261] As one embodiment, "the first transmit power value depends on the value of the first counter" includes: the first transmit power value is min(P) PRDCH，D (i), P PRDCH (i)), where min() represents the result of taking the minimum value, P PRDCH,D (i) is the transmit power value obtained from the power control of the virtual (or reference) uplink signal, P PRDCH (i) is linearly related to the value of the first counter.

[0262] As an example, the value of the first counter is an integer greater than or equal to 0.

[0263] As an example, the value of the first counter is a positive integer.

[0264] As an example, the value of the first counter increases by 1 each time.

[0265] As an example, the first counter starts counting from 0.

[0266] As an example, the first counter starts counting from 1.

[0267] As an example, the value of the first counter corresponds to the value of PRDCH_POWER_RAMPING_COUNTER.

[0268] As an example, the value of the first counter corresponds to the value of PRDCH_POWER_RAMPING_COUNTER-1.

[0269] As an example, the value of the first counter corresponds to the value of PRDCH_TRANSMISSION_COUNTER.

[0270] As an example, the value of the first counter corresponds to the value of PRDCH_TRANSMISSION_COUNTER-1.

[0271] As an example, the first counter is used for transmission counting in the IoT access process.

[0272] As one example, the first counter is used for power boost counting in the IoT access process.

[0273] As an example, the first counter is used to count the transmission of Msg0 during the IoT access process.

[0274] As one embodiment, the first counter is used to count the transmission of paging messages during the IoT access process.

[0275] As one embodiment, the first counter is used to count the transmissions of the PRDCH carrying the paging message.

[0276] As one embodiment, the first counter is used by the terminal to count paging messages for the IoT device in this application.

[0277] As an example, the first counter is used to count the powerramping when the terminal sends a PRDCH.

[0278] As an example, the first counter is used to count the power ramping when the terminal sends PRDCH during the IoT access process.

[0279] As one embodiment, the first counter is used to count the power boost when the terminal sends a paging message.

[0280] As one embodiment, the first counter is used to count the power boost when the terminal sends a PRDCH carrying a paging message.

[0281] As one embodiment, whether the first counter continues to count includes: the first counter continues to count and the first counter stops counting.

[0282] As one embodiment, the first counter continues counting by incrementing its value by 1.

[0283] As one embodiment, the first counter continues to count by incrementing its value by 1.

[0284] As one embodiment, pausing the counting of the first counter includes: keeping the value of the first counter unchanged.

[0285] As one embodiment, pausing the first counter includes: not reassigning the value of the first counter.

[0286] As one embodiment, "whether the first counter continues to count depends on whether the terminal successfully receives the PDRCH associated with the first PRDCH" includes: whether the first counter continues to count is related to whether the terminal successfully receives the PDRCH associated with the first PRDCH.

[0287] As one embodiment, "whether the first counter continues to count depends on whether the terminal successfully receives the PDRCH associated with the first PRDCH" includes: whether the terminal successfully receives the PDRCH associated with the first PRDCH is used to determine whether the first counter continues to count.

[0288] As one embodiment, "whether the first counter continues to count depends on whether the terminal successfully receives the PDRCH associated with the first PRDCH" includes: whether the terminal successfully receives the PDRCH associated with the first PRDCH is used by the terminal to determine whether the first counter continues to count.

[0289] As one embodiment, "whether the first counter continues to count depends on whether the terminal successfully receives the PDRCH associated with the first PRDCH" includes: whether the first counter continues to count or pauses counting depends on whether the terminal successfully receives the PDRCH associated with the first PRDCH.

[0290] As one embodiment, "whether the first counter continues to count depends on whether the terminal successfully receives the PDRCH associated with the first PRDCH" includes: when the terminal fails to successfully receive the PDRCH associated with the first PRDCH, the first counter continues to count; when the terminal successfully receives the PDRCH associated with the first PRDCH, the first counter pauses counting.

[0291] As one embodiment, "whether the first counter continues to count depends on whether the terminal successfully receives the PDRCH associated with the first PRDCH" includes: when the terminal fails to successfully receive the PDRCH associated with the first PRDCH, the value of the first counter is incremented by one; when the terminal successfully receives the PDRCH associated with the first PRDCH, the value of the first counter remains unchanged.

[0292] As one embodiment, "whether the first counter continues to count depends on whether the terminal successfully receives the PDRCH associated with the first PRDCH" includes: when the terminal fails to receive the PDRCH associated with the first PRDCH and retransmits the first PRDCH, the value of the first counter is incremented by 1.

[0293] As one embodiment, "whether the first counter continues to count depends on whether the terminal successfully receives the PDRCH associated with the first PRDCH" includes: when the terminal fails to receive the PDRCH associated with the first PRDCH, and the terminal sends the PRDCH again, the value of the first counter is the value of the first counter when the first PRDCH was sent plus one.

[0294] As one embodiment, "whether the first counter continues to count depends on whether the terminal successfully receives the PDRCH associated with the first PRDCH" includes: the first value is the value of the first counter when the terminal sends the first PRDCH; when the terminal fails to successfully receive the PDRCH associated with the first PRDCH, the value of the first counter is the result of the first value plus one; when the terminal successfully receives the PDRCH associated with the first PRDCH, the value of the first counter is the first value.

[0295] As one embodiment, "whether the first counter continues to count depends on whether the terminal successfully receives the PDRCH associated with the first PRDCH" includes: the first value is the value of the first counter when the terminal sends the first PRDCH, and when the terminal fails to successfully receive the PDRCH associated with the first PRDCH, and the terminal sends the PRDCH again to trigger the IoT access process, the value of the first counter is the result of the first value plus one.

[0296] As one embodiment, "whether the first counter continues to count depends on whether the terminal successfully receives the PDRCH associated with the first PRDCH" includes: when the terminal fails to successfully receive the PDRCH associated with the first PRDCH, the terminal retransmits the PRDCH to trigger the IoT access process, and the value of the first counter is increased by 1.

[0297] As one embodiment, "whether the first counter continues to count depends on whether the terminal successfully receives the PDRCH associated with the first PRDCH" includes: when the terminal does not receive the PDRCH within the time window of the PDRCH associated with the first PRDCH, the value of the first counter is incremented by 1.

[0298] As one embodiment, "whether the first counter continues to count depends on whether the terminal successfully receives the PDRCH associated with the first PRDCH" includes: when the terminal fails to successfully receive the PDRCH associated with the first PRDCH, the first counter continues to count; when the terminal successfully receives the PDRCH associated with the first PRDCH, whether the first counter continues to count depends on whether the IoT access process triggered by the first PRDCH is completed.

[0299] As one embodiment, "whether the first counter continues to count depends on whether the terminal successfully receives the PDRCH associated with the first PRDCH" includes: when the terminal fails to successfully receive the PDRCH associated with the first PRDCH, the first counter continues to count; when the terminal successfully receives the PDRCH associated with the first PRDCH, whether the first counter continues to count depends on whether the IoT access process triggered by the first PRDCH is successful.

[0300] As one embodiment, whether the terminal successfully receives the PDRCH associated with the first PRDCH includes: the terminal successfully receiving the PDRCH associated with the first PRDCH and the terminal failing to receive the PDRCH associated with the first PRDCH.

[0301] As an example, the terminal successfully receiving the PDRCH associated with the first PRDCH includes: the terminal successfully detecting the PDRCH within the time window of the PDRCH associated with the first PRDCH.

[0302] As an example, the terminal successfully receiving the PDRCH associated with the first PRDCH includes: the terminal successfully decoding the PDRCH associated with the first PRDCH.

[0303] As an example, the terminal successfully receiving the PDRCH associated with the first PRDCH includes: the terminal successfully decoding the information carried by the PDRCH associated with the first PRDCH.

[0304] As an example, the terminal successfully receiving the PDRCH associated with the first PRDCH includes: the terminal successfully decoding the identifier of the target receiver of the first PRDCH carried in the PDRCH associated with the first PRDCH.

[0305] As an example, the terminal failing to receive the PDRCH associated with the first PRDCH includes: the IoT device in this application failing to receive the first PRDCH.

[0306] As one embodiment, the terminal failing to receive the PDRCH associated with the first PRDCH includes: the IoT device in this application receives the first PRDCH but fails to send the PDRCH within the time window of the PDRCH associated with the first PRDCH.

[0307] As one embodiment, the terminal failing to receive the PDRCH associated with the first PRDCH includes: the terminal not receiving the PDRCH associated with the first PRDCH.

[0308] As an example, the terminal failing to receive the PDRCH associated with the first PRDCH includes: the terminal not monitoring or detecting the PDRCH associated with the first PRDCH.

[0309] As an example, the terminal failing to receive the PDRCH associated with the first PRDCH includes: the terminal not monitoring or detecting the PDRCH associated with the first PRDCH within the time window of the PDRCH associated with the first PRDCH.

[0310] As one embodiment, the terminal failing to receive the PDRCH associated with the first PRDCH includes: the terminal failing to decode the PDRCH associated with the first PRDCH.

[0311] As an example, the terminal failing to receive the PDRCH associated with the first PRDCH includes: the identifier carried by the PDRCH associated with the first PRDCH received by the terminal is not the identifier of the target receiver of the first PRDCH.

[0312] As an example, the terminal's failure to successfully receive the PDRCH associated with the first PRDCH includes: when the time window of the PDRCH associated with the first PRDCH has expired, and the terminal failed to monitor or detect the PDRCH within the time window of the PDRCH associated with the first PRDCH.

[0313] As an example, the terminal failing to receive the PDRCH associated with the first PRDCH includes: when the time window of the PDRCH associated with the first PRDCH has expired, and the terminal has not received the PDRCH carrying the identifier of the target receiver of the first PRDCH.

[0314] As an example, when the terminal successfully receives the PDRCH associated with the first PRDCH, the terminal echoes a PRDCH.

[0315] As an example, when the terminal successfully receives the PDRCH associated with the first PRDCH, the terminal echoes Msg2 information.

[0316] As an example, when the terminal successfully receives the PDRCH associated with the first PRDCH, the terminal feeds back the identifier received in Msg1.

[0317] As an example, when the terminal successfully receives the PDRCH associated with the first PRDCH, the terminal returns the identifier in Msg1 carried by the PDRCH associated with the first PRDCH.

[0318] As an example, when the terminal fails to receive the PDRCH associated with the first PRDCH, the terminal resends the PRDCH to trigger the re-access of the IoT device in this application.

[0319] As an example, when the terminal fails to receive the PDRCH associated with the first PRDCH, the terminal sends a paging message to re-trigger the IoT access process during the transmission of the next PRDCH.

[0320] As an example, when the terminal fails to receive the PDRCH associated with the first PRDCH, the IoT access process is not completed.

[0321] As an example, the PDRCH associated with the first PRDCH is the feedback of the first PRDCH.

[0322] As an example, the first PRDCH is associated with a PDRCH, which is either a baseband signal or a radio frequency signal of the PDRCH (Physical Device to Reader Channel).

[0323] As an example, the first PRDCH is the associated PDRCH that is scheduled or configured by the first PRDCH.

[0324] As an example, the first PRDCH is associated with a PDRCH that responds to the first PRDCH.

[0325] As an example, the PDRCH associated with the first PRDCH includes information about the IoT access process.

[0326] As an example, the PDRCH associated with the first PRDCH carries Msg1 (Message 1).

[0327] As an example, the PDRCH associated with the first PRDCH carries an ID.

[0328] As a sub-example of this embodiment, the ID carried by the PDRCH associated with the first PRDCH is randomly generated.

[0329] As a sub-example of this embodiment, the ID carried by the PDRCH associated with the first PRDCH is randomly generated by the IoT device in this application.

[0330] As a sub-example of this embodiment, the ID carried by the PDRCH associated with the first PRDCH is generated based on the device ID.

[0331] As a sub-example of this embodiment, for a three-step CBRA, the ID carried by the PDRCH associated with the first PRDCH is a randomly generated ID of size 16 bits.

[0332] As an example, the PDRCH associated with the first PRDCH carries the device identification (ID) of the receiver of the first PRDCH.

[0333] As a sub-example of this embodiment, the ID carried by the PDRCH associated with the first PRDCH is a temporary identifier.

[0334] As a sub-example of this embodiment, the ID carried by the PDRCH associated with the first PRDCH is a permanent device ID.

[0335] As an example, the scheduling information of the PDRCH associated with the first PRDCH is provided or indicated by the first PRDCH.

[0336] As an example, when the terminal successfully receives the PDRCH associated with the first PRDCH, the terminal sends a second PRDCH carrying Msg2. When the terminal fails to receive the PDRCH associated with the second PRDCH, the first counter pauses counting.

[0337] As an example, when the terminal successfully receives the PDRCH associated with the first PRDCH, the terminal sends a second PRDCH carrying Msg2. When the terminal fails to receive the Msg3 carried by the PDRCH associated with the second PRDCH, the first counter stops counting.

[0338] As an example, when the terminal does not receive Msg3, since the IoT device in this application has successfully received the previously sent paging information (or Msg0), the terminal will maintain the same power transmission as before when it sends the paging information or Msg0 again, thus saving power and reducing interference to other links.

[0339] Example 2

[0340] Example 2 illustrates a schematic diagram of a network architecture according to this application, as shown in the attached diagram. Figure 2 As shown. (Attached) Figure 2This diagram illustrates 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. 5GS / EPS 200 may include one or more UE (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. 5GS / EPS can interconnect with other access networks, but these entities / interfaces are not shown for simplicity. As shown in the figure, 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. NG-RAN includes NR / Evolved Node B (gNB / eNB) 203 and other gNBs (eNBs) 204. gNBs (eNBs) 203 provide user and control plane protocol termination to UE 201. gNBs (eNBs) 203 can connect to other gNBs (eNBs) 204 via Xn / X2 interfaces (e.g., backhaul). gNBs (eNBs) 203 may also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, Basic Services Set (BSS), Extended Services Set (ESS), TRP (Transmitter Receiver Node), or some other suitable terminology. gNBs (eNBs) 203 provide UE 201 with an access point to the 5GC / EPC 210. Examples of UE201 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptops, 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 IoT devices, machine-type communication devices, land vehicles, automobiles, wearable devices, test equipment, test instruments, test tools, or any other similar functional devices.Those skilled in the art may also refer to UE201 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, radio terminal, remote terminal, handheld device, user agent, mobile client, client, or any other suitable term. gNB (eNB)203 connects to 5GC / EPC210 via the S1 / NG interface. 5GC / EPC210 includes MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function)211, other MME / AMF / SMF214, S-GW (Service Gateway) / UPF (User Plane Function)212, and P-GW (Packet Data Network Gateway) / UPF213. The MME / AMF / SMF211 is the control node that handles signaling between UE201 and 5GC / EPC210. ​​Essentially, the MME / AMF / SMF211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through the S-GW / UPF212, which is itself connected to the P-GW / UPF213. The P-GW provides UE IP address allocation and other functions. The P-GW / UPF213 is connected to Internet service 230. Internet service 230 includes operator-compliant Internet Protocol services, specifically including the Internet, intranet, IMS (IP Multimedia Subsystem), and packet-switched streaming services.

[0341] As an example, the UE201 corresponds to the device of the terminal described in this application.

[0342] As an example, the UE201 supports OOK.

[0343] As an example, Device241 corresponds to the IoT device described in this application.

[0344] Example 3

[0345] Example 3 illustrates a schematic diagram of a wireless protocol architecture for the user plane and control plane according to an embodiment of this application, as shown in the attached diagram. Figure 3 As shown. Figure 3This is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane 350 and the control plane 300. Figure 3The radio protocol architecture for the control plane 300 used by terminals, base stations, and IoT devices is illustrated in 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. L1 layer will be referred to as PHY301 in this document. Layer 2 (L2 layer) 305 sits above PHY301 and is responsible for the link between the terminal and the base station via PHY301. L2 layer 305 includes the MAC (Medium Access Control) sublayer 302, the RLC (Radio Link Control) sublayer 303, and the PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the base station or IoT device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. PDCP sublayer 304 also provides security through encrypted data packets, and provides cross-regional mobility support between base stations and between IoT devices. RLC sublayer 303 provides upper-layer packet segmentation and reassembly, retransmission of lost packets, and packet reordering to compensate for out-of-order reception due to HARQ. MAC sublayer 302 provides multiplexing between the logical and transport channels. MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) within a cell among terminals. MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3) of the control plane 300 is responsible for acquiring radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the base station and the terminals. The radio protocol architecture of user plane 350 includes Layer 1 (L1 layer) and Layer 2 (L2 layer). The radio protocol architecture for terminals, base stations, and IoT devices in user plane 350 is largely the same as the corresponding layers and sublayers in control plane 300 for Physical Layer 351, PDCP sublayer 354 in L2 layer 355, RLC sublayer 353 in L2 layer 355, and MAC sublayer 352 in L2 layer 355. However, PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. L2 layer 355 in user plane 350 also includes SDAP (Service Data Adaptation Protocol) sublayer 356. SDAP sublayer 356 is responsible for mapping between QoS streams and Data Radio Bearers (DRBs) to support service diversity.Although not illustrated, the terminal may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) terminating at the P-GW on the network side and an application layer terminating at the other end of the connection (e.g., remote UE, server, etc.).

[0346] As an example, Appendix Figure 3 The wireless protocol architecture described herein is applicable to the terminal described in this application.

[0347] As an example, Appendix Figure 3 The wireless protocol architecture described herein is applicable to the IoT devices described in this application.

[0348] As an example, the first information block in this application is generated in RRC306, or MAC302, or MAC352, or PHY301, or PHY351.

[0349] As an example, the first PRDCH in this application is generated in MAC302, or MAC352, or PHY301, or PHY351.

[0350] As an example, the first PDRCH in this application is generated in MAC302, or MAC352, or PHY301, or PHY351.

[0351] Example 4

[0352] Example 4 illustrates a schematic diagram of a terminal and an Internet of Things (IoT) device according to an embodiment of this application, as shown in the attached diagram. Figure 4 As shown.

[0353] The terminal (410) may include a controller / processor 440, a memory 430, a receiver processor 412, a transmitter / receiver 416 and a transmitter processor 415, the transmitter / receiver 416 including an antenna 420.

[0354] The Internet of Things device (450) may include a controller / processor 490 (if supported), a memory 480, a receiver processor 452, a transmitter / receiver 456 and a transmitter processor 455, the transmitter / receiver 456 including an antenna 460.

[0355] In the transmission from the terminal to the IoT device, upper-layer packets are provided to the controller / processor 440. The controller / processor 440 implements functions of Layer 2 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 operation, retransmission of lost packets (if supported), and higher-layer signaling to the IoT device 450. The higher-layer information carried by the first PRDCH in this application is generated in the controller / processor 440. The transmit processor 415 implements various signal processing functions for Layer 1 (i.e., physical layer), including encoding, interleaving, scrambling, modulation, power control / allocation, precoding, and physical layer control signaling generation, such as the first PRDCH in this application, which is performed in the transmit processor 415. The generated modulation symbols are divided into parallel streams, and each stream is mapped to a corresponding multicarrier subcarrier and / or multicarrier symbol. These are then transmitted by the transmit processor 415 via the transmitter 416 to the antenna 420 as radio frequency (RF) signals. At the receiver, each receiver 456 receives the RF signal through its corresponding antenna 460. Each receiver 456 recovers the baseband information modulated onto the RF carrier (if baseband processing is supported) and provides this baseband information to the receive processor 452. The receive processor 452 implements various signal reception and processing functions of the L1 layer. The signal reception and processing function includes receiving the first PRDCH in this application, performing various modulation schemes (e.g., On-Off Keying (OOK), Binary Phase Shift Keying (BPSK), followed by descrambling, decoding, and deinterleaving (if supported) to recover the data or control signals transmitted by terminal 410 on the physical channel, and then providing the data and control signals to controller / processor 490 (if supported by the IoT device). Controller / processor 490 is responsible for Layer 2 and above, and interprets higher-layer information, including the higher-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. Memory 480 may be referred to as computer-readable media.

[0356] In the transmission from IoT devices to terminals, similar to the transmission from terminals to IoT devices, the higher-layer information carried by the first PDRCH, after being generated by the controller / processor 490 (if supported by the IoT device), is processed by the transmitter processor 455 to perform various signal transmission processing functions for the L1 layer (i.e., physical layer). The transmitter processor 455, including the physical layer signal of the first PDRCH, is mapped to the antenna 460 via the transmitter 456 and transmitted as 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 receiver processor 412. The receiver processor 412 performs various signal reception processing functions for the L1 layer (i.e., physical layer) and then provides data and / or control signals to the controller / processor 440. The controller / processor 440 performs L2 layer functions, including interpreting the higher-layer information. The controller / processor may be associated with a memory 430 that stores program code and data. The memory 430 may be a computer-readable medium.

[0357] As one 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 with the at least one processor, and the terminal at least: receives a first information block; transmits a first PRDCH; the first information block configures the first PRDCH; the first PRDCH uses OOK; the first PRDCH triggers an IoT access process, the transmit power value of the first PRDCH is equal to the smaller value between a maximum output power value and a first transmit power value, the maximum output power value depends on the power level of the sender of the first PRDCH, the first transmit power value depends on the value of a first counter; whether the first counter continues to count depends on whether the terminal successfully receives the PDRCH associated with the first PRDCH.

[0358] As one embodiment, the terminal 410 includes: a memory storing a computer-readable instruction program that generates actions when executed by at least one processor, the actions including: sending a first PRDCH; configuring the first PRDCH with a first information block; using OOK on the first PRDCH; triggering an IoT access process with the first PRDCH, wherein the transmit power value of the first PRDCH is equal to the smaller of a maximum output power value and a first transmit power value, the maximum output power value depending on the power level of the sender of the first PRDCH, the first transmit power value depending on the value of a first counter; and whether the first counter continues to count depends on whether the terminal successfully receives the PDRCH associated with the first PRDCH.

[0359] As one embodiment, the IoT 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 IoT device 450 at least: receives a first PRDCH; configures the first PRDCH with a first information block; the first PRDCH uses OOK; the first PRDCH triggers an IoT access procedure, wherein the transmit power value of the first PRDCH is equal to the smaller value between a maximum output power value and a first transmit power value, the maximum output power value depending on the power level of the sender of the first PRDCH, and the first transmit power value depending on the value of a first counter; whether the first counter continues counting depends on whether the terminal successfully receives the PDRCH associated with the first PRDCH.

[0360] As one embodiment, the IoT device 450 includes: a memory storing a computer-readable instruction program that, when executed by at least one processor, generates actions including: receiving a first PRDCH; configuring the first PRDCH with a first information block; the first PRDCH using OOK; the first PRDCH triggering an IoT access procedure, wherein the transmit power value of the first PRDCH is equal to the smaller of a maximum output power value and a first transmit power value, the maximum output power value depending on the power level of the sender of the first PRDCH, and the first transmit power value depending on the value of a first counter; whether the first counter continues counting depends on whether the terminal successfully receives the PDRCH associated with the first PRDCH.

[0361] As an example, the terminal 410 is a user equipment (UE).

[0362] As an example, the IoT device 450 is an environmental IoT device.

[0363] As an example, the Internet of Things device 450 is an RFID device.

[0364] As one embodiment, transmitter 416 (including antenna 420), transmitter processor 415 and controller / processor 440 are used to transmit the first PRDCH in this application.

[0365] As one embodiment, receiver 416 (including antenna 420), receiver processor 412 and controller / processor 440 are used to receive the first PDRCH in this application.

[0366] As one embodiment, receiver 416 (including antenna 420), receiver processor 412 and controller / processor 440 are used to receive the first information block in this application.

[0367] As one embodiment, receiver 456 (including antenna 460), receiver processor 452 and controller / processor 490 are used to receive the first PRDCH in this application.

[0368] As one embodiment, transmitter 456 (including antenna 460), transmitter processor 452 and controller / processor 490 are used to transmit the first PDRCH in this application.

[0369] Example 5

[0370] Example 5 illustrates a flowchart of transmission between a terminal and an IoT device according to an embodiment of this application, as shown in the attached diagram. Figure 5 As shown. In the appendix Figure 5 In this example, terminal U550 is the reader device of IoT device D500. It should be noted that the order in this example does not limit the signal transmission order or the implementation order in this application.

[0371] for IoT device D500 In step S501, the first PRDCH is received, and in step S502, the first PDRCH is sent.

[0372] for Terminal U550 In step S551, the first information block is received; in step S552, the first PRDCH is sent; and in step S553, the first PDRCH is received.

[0373] In Embodiment 5, the first information block configures the first PRDCH; the first PRDCH uses OOK; the first PRDCH triggers the IoT access process, the transmit power value of the first PRDCH is equal to the smaller value between the maximum output power value and the first transmit power value, the maximum output power value depends on the power level of the sender of the first PRDCH, and the first transmit power value depends on the value of the first counter; whether the first counter continues to count depends on whether the terminal successfully receives the PDRCH associated with the first PRDCH. The first PDRCH is a response to the first PRDCH; the first PDRCH carries a first identifier, which is either the identifier of the sender of the first PDRCH or an identifier randomly generated by the sender of the first PDRCH.

[0374] Example 6

[0375] Example 6 illustrates a schematic diagram showing the relationship between the terminal receiving Msg1 and the value of the first counter according to an embodiment of this application, as shown in the attached diagram. Figure 6 As shown. In the appendix Figure 6 If the terminal does not receive Msg1 within the time window of the PDRCH associated with the first PRDCH, the value of the first counter is incremented by 1.

[0376] In Example 6, the PDRCH associated with the first PRDCH carries Msg1. When the terminal does not receive Msg1 within the time window of the PDRCH associated with the first PRDCH, the value of the first counter is incremented by 1.

[0377] As an example, when Msg1 is not received, the value of the counter is increased, thereby increasing the transmission power of the next paging signal, increasing the probability of successful paging the next time, and improving transmission performance.

[0378] As one embodiment, "the PDRCH associated with the first PRDCH carries Msg1" includes: the PDRCH associated with the first PRDCH is a PDRCH transmission of Msg1.

[0379] As one example, "the PDRCH associated with the first PRDCH carries Msg1" includes: Msg1 is transmitted on the PDRCH associated with the first PRDCH.

[0380] As one example, "the PDRCH associated with the first PRDCH carries Msg1" includes: the PDRCH associated with the first PRDCH includes Msg1.

[0381] As one example, "the PDRCH associated with the first PRDCH carries Msg1" includes: Msg1 is used to generate the PDRCH associated with the first PRDCH.

[0382] As an example, the Msg1 carried by the PDRCH associated with the first PRDCH includes an ID (Identification).

[0383] As an example, the Msg1 carried by the PDRCH associated with the first PRDCH includes a randomly generated ID.

[0384] As an example, the Msg1 carried by the PDRCH associated with the first PRDCH includes a fixed-bit ID.

[0385] As an example, the Msg1 carried by the PDRCH associated with the first PRDCH includes a fixed-size 16-bit ID.

[0386] As an example, the Msg1 carried by the PDRCH associated with the first PRDCH includes a device identifier of the receiver of the first PRDCH.

[0387] As an example, the Msg1 carried by the PDRCH associated with the first PRDCH is the MAC layer information carried by the PDRCH associated with the first PRDCH.

[0388] As an example, the Msg1 carried by the PDRCH associated with the first PRDCH is the MAC layer PDU carried by the PDRCH associated with the first PRDCH.

[0389] As an example, the Msg1 carried by the PDRCH associated with the first PRDCH is the MAC CE (control element) carried by the PDRCH associated with the first PRDCH.

[0390] As an example, the time window of the PDRCH associated with the first PDRCH is the time window in this application when the terminal expects to receive the PDRCH.

[0391] As an example, the PDRCH associated with the first PRDCH is sent within the time window of the PDRCH associated with the first PRDCH.

[0392] As an example, the time window of the PDRCH associated with the first PRDCH is indicated by the first PRDCH.

[0393] As an example, the time window of the PDRCH associated with the first PRDCH is predefined.

[0394] As an example, the time window of the PDRCH associated with the first PRDCH is configured or predefined for the device type in each application.

[0395] As an example, "the terminal did not receive Msg1 within the time window of the PDRCH associated with the first PRDCH" includes: the terminal did not receive the PDRCH within the time window of the PDRCH associated with the first PRDCH.

[0396] As an example, "the terminal did not receive Msg1 within the time window of the PDRCH associated with the first PRDCH" includes: the terminal did not receive the PDRCH associated with the first PRDCH.

[0397] As an example, "the terminal did not receive Msg1 within the time window of the PDRCH associated with the first PRDCH" includes: the terminal did not monitor or detect the PDRCH associated with the first PRDCH within the time window of the PDRCH associated with the first PRDCH.

[0398] As an example, "the terminal did not receive Msg1 within the time window of the PDRCH associated with the first PRDCH" includes: the terminal failed to successfully decode Msg1 received within the time window of the PDRCH associated with the first PRDCH.

[0399] As an example, "the terminal did not receive Msg1 within the time window of the PDRCH associated with the first PRDCH" includes: the Msg1 received by the terminal within the time window of the PDRCH associated with the first PRDCH does not carry the identifier of the target receiver of the first PRDCH.

[0400] As an example, "the terminal did not receive Msg1 within the time window of the PDRCH associated with the first PRDCH" includes: the identifier carried by Msg1 received by the terminal within the time window of the PDRCH associated with the first PRDCH is different from the identifier of the target receiver of the first PRDCH.

[0401] As an example, "the terminal did not receive Msg1 within the time window of the PDRCH associated with the first PRDCH" includes: when the time window of the PDRCH associated with the first PRDCH has expired, and the terminal failed to monitor or detect Msg1 within the time window of the PDRCH associated with the first PRDCH.

[0402] As an example, the terminal failing to receive the PDRCH associated with the first PRDCH includes: when the time window of the PDRCH associated with the first PRDCH has expired, and the terminal has not received Msg1 carrying the identifier of the target receiver of the first PRDCH.

[0403] As an example, the first counter in this application continuing to count is equivalent to or can be used interchangeably with the value of the first counter plus one.

[0404] Example 7

[0405] Example 7 illustrates a schematic diagram showing the relationship between a first transmit power value, a first counter value, and a first step length according to an embodiment of this application, as shown in the attached diagram. Figure 7 As shown. In the appendix Figure 7In the diagram, the vertical axis represents power, and the rectangle filled with diagonal lines represents the first transmit power value. When the value of the first counter is X and X+1, the difference between the first transmit power values ​​is the first step length.

[0406] In Example 7, the first transmit power value depends on the product of the value of the first counter and the first step length, which is the power boost step size of the PRDCH used in the IoT access process.

[0407] As an example, when no feedback is received after sending a paging signal, the transmission power is gradually increased according to the first step length, which increases the success rate of the IoT access process and reduces interference to other links.

[0408] As an example, the unit of length for the first step is dB.

[0409] As an example, the unit of length for the first step is watt or milliwatt.

[0410] As an example, the value of the first step length is an integer.

[0411] As an example, the value of the first step length is an integer not less than 0.

[0412] As an example, the first step corresponds to the parameter PRDCH_POWER_RAMPING_STEP in the MAC layer.

[0413] As an example, the first step length is configured by the RRC layer parameters.

[0414] As an example, the first step length is configured in the first information block of this application.

[0415] As an example, the first step length is a predefined fixed value.

[0416] As an example, the first step length is the power boost step length.

[0417] As an example, the first step length is the power boost step length of the PRDCH transmission.

[0418] As an example, the first step length is the power boost step length when transmitting Msg0 during the IoT access process in this application.

[0419] As an example, the first step length is the power boost step length when sending a paging message in the IoT access process of this application.

[0420] As an example, the first step length is the power boosting step length of the PRDCH transmission during the IoT access process in this application.

[0421] As an example, the first step length is the power boost step length when the terminal sends a paging message in this application.

[0422] As an example, the first step length is the power boost step length when the terminal in this application sends a PRDCH carrying a paging message.

[0423] As an example, the first step has multiple candidate values.

[0424] As one embodiment, "the first transmit power value depends on the product of the value of the first counter and the first step length" includes: the first transmit power value is related to the product of the value of the first counter and the first step length.

[0425] As one embodiment, "the first transmit power value depends on the product of the value of the first counter and the first step length" includes: the product of the value of the first counter and the first step length is used to determine the first transmit power value.

[0426] As one embodiment, "the first transmit power value depends on the product of the value of the first counter and the first step length" includes: the product of the value of the first counter and the first step length is used by the terminal in this application to calculate the first transmit power value.

[0427] As one embodiment, "the first transmit power value depends on the product of the value of the first counter and the first step length" includes: the first transmit power value is linearly related to the product of the value of the first counter and the first step length.

[0428] As one embodiment, "the first transmit power value depends on the product of the value of the first counter and the first step length" includes: the first transmit power value is linearly related to the logarithm of the product of the value of the first counter and the first step length.

[0429] As one embodiment, "the first transmit power value depends on the product of the value of the first counter and the first step length" includes: calculating at least one parameter of the first transmit power value depends on the product of the value of the first counter and the first step length.

[0430] As one embodiment, "the first transmit power value depends on the product of the value of the first counter and the first step length" includes: at least one parameter included in the first transmit power value depends on the product of the value of the first counter and the first step length.

[0431] As one embodiment, "the first transmit power value depends on the product of the value of the first counter and the first step length" includes: calculating the target reception power value PRDCH_RECEIVED_TARGET_POWER of the first transmit power value as the product of the value of the first counter and the first step length.

[0432] As one embodiment, "the first transmit power value depends on the product of the value of the first counter and the first step length" includes: calculating the target reception power value P of the first transmit power value. PRDCH,target，f，c It depends on the product of the value of the first counter and the first step length.

[0433] As one embodiment, "the first transmit power value depends on the product of the value of the first counter and the first step length" includes: the first transmit power value is P PRDCH (i), P PRDCH (i)=P PRDCH,target,f，c +PL dBm, where P PRACH,target,f，c For the target received power value of the first PRDCH, PL is the path loss compensation amount, P PRACH，target，f，c It depends on the product of the value of the first counter and the first step length.

[0434] As one embodiment, "the first transmit power value depends on the value of the first counter" includes: the target receive power value used to calculate the first transmit power value is PRDCH_RECEIVED_TARGET_POWER, PRDCH_RECEIVED_TARGET_POWER = A + PRDCH_POWER_RAMPING_STEP * PRDCH_POWER_RAMPING_COUNTER, where A includes the initial target receive power of PRDCH, PRDCH_POWER_RAMPING_STEP is the first step length, and PRDCH_POWER_RAMPING_COUNTER is the value of the first counter.

[0435] As one embodiment, "the first transmit power value depends on the value of the first counter" includes: the target receive power value used to calculate the first transmit power value is PRDCH_RECEIVED_TARGET_POWER, PRDCH_RECEIVED_TARGET_POWER = A + PRDCH_POWER_RAMPING_STEP * (PRDCH_POWER_RAMPING_COUNTER - I), where A includes the initial target receive power of PRDCH, PRDCH_POWER_RAMPING_STEP is the first step length, and PRDCH_POWER_RAMPING_COUNTER is the value of the first counter.

[0436] As an example, for every increment of the value of the first counter by 1, the value of the first transmission power increases by the first step length.

[0437] As an example, without considering the limitation of uplink transmission power, for every increment of the value of the first counter by 1, the first transmit power increases by the first step length.

[0438] Example 8

[0439] Example 8 illustrates a schematic diagram of multiple candidate step sizes corresponding to multiple device types according to an embodiment of this application, as shown in the attached diagram. Figure 8 As shown. In the appendix Figure 8 In the diagram, the rectangle enclosed by the thick solid line on the left represents multiple candidate step sizes, and the rectangle inside the rectangle enclosed by the thick solid line on the left represents the step sizes included in the multiple candidate step sizes. The rectangle enclosed by the thick solid line on the right represents multiple device types, and the rectangle inside the rectangle enclosed by the thick solid line on the right represents the device types included in the multiple device types. The multiple candidate step sizes correspond to the multiple device types.

[0440] In embodiment 8, multiple candidate step lengths correspond to multiple device types. The first step length is the step length corresponding to the device type of the receiver of the first PRDCH among the multiple candidate step lengths. The device type includes at least one of type 1, type 2a and type 2b.

[0441] As an example, considering the different sensitivities of different types of devices, different power boost step sizes are set according to different device types, which simplifies the design and reduces the complexity of implementation.

[0442] As an example, the unit of each candidate step size included in the plurality of candidate step sizes is dB.

[0443] As an example, the unit of each candidate step included in the plurality of candidate step lengths is a watt or a milliwatt.

[0444] As an example, the value of each candidate step size included in the plurality of candidate step sizes is an integer.

[0445] As an example, the value of each candidate step size included in the plurality of candidate step sizes is an integer not less than 0.

[0446] As an example, the value of each candidate step size included in the plurality of candidate step sizes is configured by the RRC layer parameters.

[0447] As an example, each of the plurality of candidate step sizes is configured in the first information block of this application.

[0448] As an example, each of the plurality of candidate step sizes is a fixed value.

[0449] As an example, the plurality of candidate step sizes are candidate step sizes for power boosting.

[0450] As an example, the plurality of candidate step sizes are candidate power boost step sizes for PRDCH transmission.

[0451] As an example, the plurality of candidate step sizes are candidate power boost step sizes when transmitting Msg0 during the IoT access process in this application.

[0452] As an example, the plurality of candidate step sizes are candidate power boosting step sizes for PRDCH transmission during the IoT access process.

[0453] As an example, the plurality of candidate step sizes are candidate power boost step sizes when the terminal sends a PRDCH carrying a paging message.

[0454] As an example, each of the plurality of candidate step sizes includes a plurality of candidate values.

[0455] As one embodiment, "multiple candidate step lengths correspond to multiple device types" includes: the first information block in this application indicates X candidate step lengths, and the X candidate step lengths correspond to X device types.

[0456] As an example, "multiple candidate step lengths correspond to multiple device types" includes: the multiple candidate step lengths and the multiple device types have a corresponding relationship or mapping relationship.

[0457] As an example, "multiple candidate step sizes correspond to multiple device types" includes: each candidate step size included in the multiple candidate step sizes corresponds to one of the device types.

[0458] As one example, "multiple candidate step sizes correspond to multiple device types" includes: one device type corresponds to one candidate step size included in the multiple candidate step sizes.

[0459] As an example, "multiple candidate step lengths corresponding to multiple device types" includes: the multiple candidate step lengths include the first step length and the second step length, and the first step length and the second step length respectively correspond to two device types.

[0460] As an example, "multiple candidate step lengths correspond to multiple device types" includes: the multiple candidate step lengths include the first step length, the second step length, and the third step length, the first step length, the second step length, and the third step length respectively correspond to IoT device 1, IoT device 2a, and IoT device 2b as defined in 3GPP TR38.769.

[0461] As an example, "multiple candidate step lengths correspond to multiple device types" includes: the multiple candidate step lengths include the first step length, the second step length, and the third step length, the first step length, the second step length, and the third step length respectively correspond to type 1, type 2a, and type 2b.

[0462] As an example, "multiple candidate step sizes correspond to multiple device types" includes: when the device type is one type, the corresponding candidate step size is one candidate step size; when the device type is another type of device, the corresponding candidate step size is another candidate step size.

[0463] As an example, "the first step length is the step length corresponding to the device type of the receiver of the first PRDCH among the plurality of candidate step lengths" includes: the device type corresponding to the first step length is the device type of the receiver of the first PRDCH.

[0464] As an example, "the first step length is the step length corresponding to the device type of the receiver of the first PRDCH among the plurality of candidate step lengths" includes: the device type of the receiver of the first PRDCH is the same as the device type corresponding to the first step length.

[0465] As an example, "the first step length is the step length corresponding to the device type of the receiver of the first PRDCH among the plurality of candidate step lengths" includes: the step length corresponding to the device type of the receiver of the first PRDCH among the plurality of candidate step lengths is the first step length.

[0466] As an example, the device type of the receiver of the first PRDCH includes one of device 1, device 2a, and device 2b as defined in 3GPP TR38.769.

[0467] As an example, the device type of the receiver of the first PRDCH includes one of device A, device B, and device C as defined in 3GPP TR38.848.

[0468] As an example, the device type of the receiver of the first PRDCH is determined based on at least one of the following: power consumption, presence of an amplifier, and use of backscattering.

[0469] As an example, the device type of the receiver of the first PRDCH is classified according to the complexity of the device.

[0470] As an example, the device type of the receiver of the first PRDCH is determined based on the device's capabilities.

[0471] As an example, the device type of the receiver of the first PRDCH is determined based on whether it has a power amplifier.

[0472] As an example, the device type of the receiver of the first PRDCH is determined based on whether it has a battery or its capacity.

[0473] As an example, the device type of the receiver of the first PRDCH is determined based on the device receiver sensitivity.

[0474] As an example, the device type of the receiver of the first PRDCH is determined based on whether the uplink transmission is generated internally by the device or by backscattering.

[0475] As an example, the device type of the receiver of the first PRDCH depends on the indication of the core network.

[0476] As an example, the device type of the receiver of the first PRDCH depends on the signaling indication of the core network device.

[0477] As an example, the device type of the receiver of the first PRDCH is indicated by the core network.

[0478] As an example, the core network indicates the device type of the receiver of the first PRDCH that the terminal wants to communicate with.

[0479] As an example, the core network indicates the device type of the receiver of the first PRDCH based on the currently provided services.

[0480] As an example, after obtaining the device type of the IoT device based on the identifier of the IoT device related to the current service, the core network instructs the terminal on the device type of the receiver of the first PRDCH.

[0481] As an example, the device type of the receiver of the first PRDCH is indicated by NAS.

[0482] As an example, the device type of the receiver of the first PRDCH is indicated by NAS.

[0483] As an example, the device type of the receiver of the first PRDCH also includes other device types besides type 1, type 2a and type 2b.

[0484] As an example, type 1 is A-IoT device 1 as defined in 3GPP TR 38.769.

[0485] As an example, type 2a is A-IoT device 2a as defined in 3GPP TR38.769.

[0486] As an example, type 2b is A-IoT device 2b as defined in 3GPP TR38.769.

[0487] As an example, Type 1 has a peak power consumption of approximately 1 μW, energy storage, and a maximum initial sampling frequency offset (SFO) of 10. X A-IoT devices with ppm (parts per million) power output, no uplink or downlink power amplification, and whose uplink transmission is achieved through backscattering of an externally provided carrier.

[0488] As an example, type 2a has a peak power consumption of less than or equal to 100 μW, has energy storage, and a maximum initial sampling frequency offset (SFO) of 10. XA-IoT devices with ppm (parts per million) power amplification for both uplink and downlink, and whose uplink transmission is achieved through backscattering of an externally provided carrier.

[0489] As an example, type 2b has a peak power consumption of less than or equal to 100 μW, has energy storage, and a maximum initial sampling frequency offset (SFO) of 10. X ppm (Parts per million) has uplink and downlink power amplification, and the device's uplink transmission is generated internally by the A-IoT device.

[0490] Example 9

[0491] Example 9 illustrates a schematic diagram illustrating the relationship between a first transmit power value, a first power value, and a second power value according to an embodiment of this application, as shown in the attached diagram. Figure 9 As shown. In the appendix Figure 9 In the diagram, the rectangle filled with diagonal lines on the left represents the first power value, and the rectangle filled with diagonal lines on the right represents the second power value. The first transmit power value is the smaller value compared to the first power value and the second power value.

[0492] In Example 9, the first transmit power value is equal to the smaller of the first power value and the second power value, the first power value depends on the downlink path loss, and the second power value depends on the value of the first counter.

[0493] As an example, when determining the PRDCH transmit power, the limitations of uplink transmission are taken into account, so that the transmit power for IoT devices does not exceed the uplink transmit power, which is compatible with existing standards while reducing interference to other links.

[0494] As one embodiment, "the first transmit power value is equal to the smaller value between the first power value and the second power value" includes: the first transmit power value is the result of taking the smaller value between the first power value and the second power value.

[0495] As one embodiment, "the first transmit power value is equal to the smaller value between the first power value and the second power value" includes: when the first power value is less than the second power value, the first transmit power value is equal to the first power value; when the first power value is greater than the second power value, the first transmit power value is equal to the second power value; when the first power value is equal to the second power value, the first transmit power value is equal to the first power value or the second power value.

[0496] As an example, the unit of the first power value is dBm (millidecibels).

[0497] As an example, the unit of the first power value is watts or milliwatts.

[0498] As an example, the first power value is P PRDCH,D The value of (i).

[0499] As an example, the first power value is P PRDCH，D The value of .

[0500] As an example, the first power value is a transmit power value calculated using the number of RBs occupied by the first PRDCH, the target receive power and path loss compensation factor configured by higher-layer parameters, and the downlink path loss.

[0501] As an example, the first power value is the transmit power value calculated by the terminal based on the number of RBs occupied by the first PRDCH, the target received power P0 value and path loss compensation factor α configured by the higher layer parameters, and the downlink path loss.

[0502] As an example, the first power value is the transmit power value calculated by the terminal assuming that the first PRDCH is an uplink signal.

[0503] As an example, the first power value is a transmit power value obtained by power control of a virtual (or referenced) uplink signal.

[0504] As an example, the unit of the second power value is dBm (millidecibels).

[0505] As an example, the unit of the second power value is watts or milliwatts.

[0506] As an example, the second power value is P PRDCH The value of (i).

[0507] As an example, the second power value is P PRDCH The value of .

[0508] As an example, the second power value is determined by the number of RBs occupied by the first PRDCH and the transmit power value configured by the higher-layer parameters.

[0509] As an example, the second power value is the transmit power value calculated by the number of RBs occupied by the first PRDCH, the transmit power value configured by higher layers, the path compensation factor, and the path loss.

[0510] As an example, the second power value is the transmit power value of the first PRDCH that the terminal expects when there is no maximum output power and no reference uplink power limit.

[0511] As an example, the units of the maximum output power value, the transmit power value of the first PRDCH, the first transmit power value, the first power value, and the second power value are all the same.

[0512] As one embodiment, "the first power value depends on the downlink path loss" includes: the first power value is related to the downlink path loss.

[0513] As one embodiment, "the first power value depends on the downlink path loss" includes: the first power value depends on an estimate of the downlink path loss.

[0514] As one embodiment, "the first power value depends on downlink path loss" includes: the downlink path loss is used to determine the first power value.

[0515] As one embodiment, "the first power value depends on the downlink path loss" includes: the downlink path loss is used to calculate the first power value.

[0516] As one example, "the first power value depends on the downlink path loss" includes: the first power value is positively correlated with the downlink path loss.

[0517] As one embodiment, "the first power value depends on the downlink path loss" includes: the first power value is directly proportional to the downlink path loss.

[0518] As one example, "the first power value depends on the downlink path loss" includes: the first power value is linearly related to the downlink path loss.

[0519] As one embodiment, "the first power value depends on the downlink path loss" includes: the smaller the downlink path loss, the smaller the first power value; the greater the downlink path loss, the greater the first power value.

[0520] As one embodiment, "the first power value depends on the downlink path loss" includes: given a path loss compensation factor α, the first power value and the downlink path loss are linearly related.

[0521] As one embodiment, "the first power value depends on the downlink path loss" includes: the first power value is P PRDCH,D (i),

[0522] Among them, P O,D The P0 value for power control of PRDCH based on downlink path loss, as indicated by higher-level parameters. The first PRDCH occupies the number of resource blocks (RBs) during transmission time i, μ represents the subcarrier spacing of the subcarriers included in the first PRDCH in the frequency domain, and α represents the number of resource blocks (RBs) occupied by the first PRDCH during transmission time i. D For the α value of PRDCH power control based on downlink path loss, PL D This refers to the downlink path loss.

[0523] As an example, the downlink path loss is a downlink path loss (PL) estimate.

[0524] As an example, the downlink path loss is measured in dB.

[0525] As an example, the downlink path loss corresponds to PL n .

[0526] As an example, the downlink path loss corresponds to PL b，f，c (q d ).

[0527] As an example, the downlink path loss is calculated by the terminal using a reference signal (RS).

[0528] As an example, the downlink path loss is calculated by the terminal using a reference signal in the active downlink BWP.

[0529] As an example, the downlink path loss is equal to the difference between the RSRP (Reference Signal Received Power) value measured by the terminal for a reference signal resource and the transmit power value of the reference signal.

[0530] As an example, the downlink path loss is equal to the ratio between the RSRP (Reference Signal Received Power) value measured by the terminal for a reference signal resource and the transmit power value of the reference signal.

[0531] As an example, the downlink path loss is PL. b，f，c (q d ), where b represents the active BWP to which the first PRDCH belongs, f represents the carrier to which the first PRDCH belongs in the frequency domain, c represents the serving cell to which the first PRDCH belongs, and PL b，f，c (q d ) is based on the reference signal index q used by the terminal. d Downlink path loss estimate calculated under active downlink BWP.

[0532] As an example, the downlink path loss is PL. b，f，c Where b represents the active BWP to which the first PRDCH belongs, f represents the carrier to which the first PRDCH belongs in the frequency domain, c represents the serving cell to which the first PRDCH belongs, and PL b fc is the downlink path loss estimate calculated by the terminal using the reference signal in the active downlink BWP.

[0533] As one embodiment, "the second power value depends on the value of the first counter" includes: the value of the first counter is used to determine the second power value.

[0534] As one embodiment, "the second power value depends on the value of the first counter" includes: the value of the first counter is used to calculate the second power value.

[0535] As one embodiment, "the second power value depends on the value of the first counter" includes: the value of the first counter is used by the terminal to calculate or determine the second power value.

[0536] As one embodiment, "the second power value depends on the value of the first counter" includes: the second power value is linearly related to the value of the first counter.

[0537] As one embodiment, "the second power value depends on the value of the first counter" includes: the second power value is linearly related to the value of the first counter decremented by one.

[0538] As one embodiment, "the second power value depends on the value of the first counter" includes: the second power value depends on whether the value of the first counter is greater than 1.

[0539] As one embodiment, "the second power value depends on the value of the first counter" includes: at least one parameter used to calculate the second power value depends on the value of the first counter.

[0540] As one embodiment, "the second power value depends on the value of the first counter" includes: at least one parameter included in the second power value depends on the value of the first counter.

[0541] As one embodiment, "the second power value depends on the value of the first counter" includes: calculating the target reception power value of the second power value depends on the value of the first counter.

[0542] As one embodiment, "the second power value depends on the value of the first counter" includes: calculating the target reception power value PRDCH_RECEIVED_TARGET_POWER of the second power value depending on the value of the first counter.

[0543] As one embodiment, "the second power value depends on the value of the first counter" includes: calculating the target reception power value P of the second power value. PRDCH,target，f，c It depends on the value of the first counter.

[0544] As one embodiment, "the second power value depends on the value of the first counter" includes: calculating the power offset P of the second power value. offset It depends on the value of the first counter.

[0545] As one embodiment, "the second power value depends on the value of the first counter" includes: the second power value is P PRDCH (i), P PRDCH (i)=P PRDCH,target,f，c +PL dBm, where P PRACH,target,f，c For the target received power value of the first PRDCH, PL is the path loss compensation amount, P PRACH,target,f，c It depends on the value of the first counter.

[0546] As one embodiment, "the second power value depends on the value of the first counter" includes: the second power value is P PRDCH (i), P PRDCH (i)=P PRDCH,target,f，c +PL dBm, where P PRACH,target,f，cFor the target received power value of the first PRDCH, PL is the path loss compensation amount, P PRACH,target,f，c It depends on whether the value of the first counter is greater than 1.

[0547] As one embodiment, "the second power value depends on the value of the first counter" includes: the second power value is P PRDCH (i), P PRDCH (i)=P PRDCH,target,f，c +PL dBm, where P PRACH,target,f，c For the target received power value of the first PRDCH, PL is the path loss compensation amount. When the value of the first counter is greater than 1, P... PRACH,target,f，c For a value, when the value of the first counter is equal to 1, the P PRACH,target,f，c For another value.

[0548] As one embodiment, "the second power value depends on the value of the first counter" includes: the second power value is P PRDCH (i), P PRDCH (i)=P PRDCH,target,f，c +PL dBm, where P PRACH,target,f，c For the target received power value of the first PRDCH, PL is the path loss compensation amount, P PRACH,target,f，c It is linearly related to the value of the first counter.

[0549] As one embodiment, "the second power value depends on the value of the first counter" includes: the target received power value used to calculate the second power value is PRDCH_RECEIVED_TARGET_POWER, where PRDCH_RECEIVED_TARGET_POWER is linearly related to the value of the first counter.

[0550] As one embodiment, "the second power value depends on the value of the first counter" includes: the target received power value used to calculate the second power value is PRDCH_RECEIVED_TARGET_POWER, PRDCH_RECEIVED_TARGET_POWER = A + X * PRDCH_POWER_RAMPING_COUNTER, where A includes the initial target received power of PRDCH, X is the step size for each power boost, and PRDCH_POWER_RAMPING_COUNTER is the value of the first counter.

[0551] As one embodiment, "the second power value depends on the value of the first counter" includes: the target received power value used to calculate the second power value is PRDCH_RECEIVED_TARGET_POWER, PRDCH_RECEIVED_TARGET_POWER = A + X * (PRDCH_POWER_RAMPING_COUNTER - 1), where A includes the initial target received power of PRDCH, X is the step size for each power boost, and PRDCH_POWER_RAMPING_COUNTER is the value of the first counter.

[0552] Example 10

[0553] Example 10 illustrates a schematic diagram of the relationship between a first PRDCH and a first PDRCH according to an embodiment of this application, as shown in the attached diagram. Figure 10 As shown. In the appendix Figure 10 In the diagram, the rectangle enclosed by the thick solid line on the left represents the first PRDCH, and the rectangle enclosed by the thick solid line on the right represents the first PDRCH. The first PDRCH is the response to the first PRDCH, and the first PDRCH carries the first identifier.

[0554] In embodiment 10, a first PDRCH is received; the first PDRCH is a response to the first PDRCH; wherein the first PDRCH carries a first identifier, which is either the identifier of the sender of the first PDRCH or an identifier randomly generated by the sender of the first PDRCH.

[0555] As an example, the Msg1 message carried by the first PDRCH includes the first identifier, so as to distinguish the sender of the first PDRCH from the PDRCH sent by other competing devices, thereby enhancing the robustness of the system.

[0556] As an example, the first PDRCH is a baseband signal or radio frequency signal of the PDRCH (Physical Device to Reader Channel).

[0557] As an example, the first PDRCH includes a reference signal.

[0558] As an example, the first PDRCH does not include a reference signal.

[0559] As an example, the first PDRCH includes a preamble.

[0560] As an example, the first PDRCH does not include a preamble.

[0561] As one example, the first PDRCH is transmitted from the IoT device to the reader.

[0562] As an example, the first PDRCH carries physical layer control information.

[0563] As an example, the first PDRCH does not carry physical layer control information.

[0564] As an example, the first PDRCH carries control information only from higher layers.

[0565] As an example, the first PDRCH carries all or part of the bits in a TB (transport block).

[0566] As an example, all or part of the bits in a TB are used to generate the first PDRCH.

[0567] As an example, the first PDRCH carries Msg1.

[0568] As an example, the first PDRCH carries information for the IoT access process in this application.

[0569] As an example, the first PDRCH is a signal that includes only high and low levels.

[0570] As an example, the first PDRCH uses OOK.

[0571] As an example, the first PDRCH uses BPSK.

[0572] As an example, the first PDRCH uses MSK.

[0573] As an example, the sender of the first PDRCH is the IoT device described in this application.

[0574] As an example, the sender of the first PDRCH is also the receiver of the first PDRCH.

[0575] As one embodiment, "the first PDRCH is a response to the first PRDCH" includes: the first PDRCH is the feedback from the receiver of the first PRDCH after receiving the first PRDCH.

[0576] As an example, "the first PDRCH is a response to the first PRDCH" includes: the first PRDCH triggers the transmission of the first PDRCH.

[0577] As an example, "the first PDRCH is a response to the first PRDCH" includes: the first PRDCH and the first PDRCH are associated.

[0578] As an example, "the first PDRCH is a response to the first PRDCH" includes: the first PRDCH and the first PDRCH belong to the same random access procedure between the reader and the IoT device.

[0579] As an example, "the first PDRCH is a response to the first PRDCH" includes: the first PDRCH belongs to the random access procedure triggered by the first PRDCH.

[0580] As an example, "the first PDRCH is a response to the first PRDCH" includes: the first PDRCH belongs to the time window associated with the first PRDCH in the time domain.

[0581] As one embodiment, "the first PDRCH carries a first identifier" includes: the first PDRCH carries at least the first identifier.

[0582] As one embodiment, "the first PDRCH carries the first identifier" includes: the first PDRCH carries only the first identifier.

[0583] As one embodiment, "the first PDRCH carries a first identifier" includes: the TB carried by the first PDRCH includes the first identifier.

[0584] As one embodiment, "the first PDRCH carries a first identifier" includes: the first identifier is used to generate the first PDRCH.

[0585] As one embodiment, "the first PDRCH carries a first identifier" includes: the first identifier is mapped to the first PDRCH.

[0586] As one embodiment, "the first PDRCH carries a first identifier" includes: the first identifier is mapped to the time domain resources occupied by the first PDRCH.

[0587] As one embodiment, the first identifier is the identifier of the sender of the first PDRCH.

[0588] As an example, the sender's identifier for the first PDRCH is an identifier configured by a higher layer.

[0589] As an example, the sender of the first PDRCH is identified by a permanent device ID.

[0590] As an example, the identifier of the sender of the first PDRCH is

[0591] As an example, the sender's identifier for the first PDRCH is the unique identifier of the receiver of the first PDRCH.

[0592] As an example, the sender's identifier for the first PDRCH is a unique physical identifier for the receiver of the first PDRCH.

[0593] As an example, the sender's identifier for the first PDRCH is the identifier that comes with the receiver of the first PDRCH from the factory.

[0594] As an example, the sender of the first PDRCH is identified by the device ID (Identification) of the receiver of the first PDRCH.

[0595] As an example, the first identifier is an identifier randomly generated by the sender of the first PDRCH.

[0596] As an example, the first identifier is a temporary identifier generated by the IoT device in this application.

[0597] As an example, the first identifier is a temporary identifier generated by the IoT device in this application for the IoT access process.

[0598] As an example, the size of the first identifier is fixed.

[0599] As an example, for a 3-step CBRA, the first identifier is randomly generated.

[0600] As an example, for a 3-step CBRA, the size of the first identifier is 16 bits.

[0601] Example 11

[0602] Example 11 illustrates a schematic diagram of an OOK time unit according to an embodiment of this application, as shown in the attached diagram. Figure 11 As shown. In the appendix Figure 11In the diagram, the horizontal axis represents time, and the numbers above represent the bits after linear encoding. Each linearly encoded bit corresponds to an OOK time unit.

[0603] In Example 11, at least one of the maximum output power value and the first transmit power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0604] As an example, the maximum output power value or actual output power value is calculated based on 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. The impact of different OOK configurations on RF devices or interference states is taken into account, and the transmit power when using OOK transmission is optimized, thereby improving performance while reducing implementation complexity.

[0605] As one embodiment, the OOK time unit includes an OOK chip.

[0606] As one example, the OOK time unit includes half of the OOK chip.

[0607] As an example, the OOK time unit is a continuous time.

[0608] As one embodiment, the OOK time unit includes the duration of a series of high-level sampling points or a series of low-level sampling points.

[0609] As one embodiment, the OOK time unit includes: the duration of a high level or the duration of a low level.

[0610] As an example, the OOK time unit includes: the shortest duration of a high level or a low level.

[0611] As one embodiment, the OOK time unit includes: the shortest duration of a high-level envelope or a low-level envelope.

[0612] As one embodiment, the OOK time unit includes twice the shortest duration of either a high level or a low level.

[0613] As an example, the OOK time unit includes: one time unit occupied by one bit after linear encoding.

[0614] As one embodiment, the OOK time unit includes the duration of a high-level envelope or a low-level envelope.

[0615] As an example, the OOK time unit includes: the time unit mapped to one bit after linear encoding.

[0616] As an example, the OOK time unit includes: the time unit mapped to a bit that has not undergone linear encoding or Manchester encoding.

[0617] As an example, the OOK time unit includes: the time length corresponding to or mapped to one OOK bit.

[0618] As an example, the OOK time unit includes half the time length corresponding to one OOK bit.

[0619] As an example, the OOK time unit includes the duration of "01" or "10" in Manchester encoding.

[0620] As an example, the OOK time unit includes the duration of a "1" or "0" in Manchester encoding.

[0621] As an example, the OOK time unit includes the total duration of the high and low levels corresponding to one information bit in Manchester encoding.

[0622] As an example, the OOK time unit includes the minimum duration of a high level or a low level in Manchester encoding.

[0623] As an example, the OOK time unit includes: the duration of a bit after Manchester encoding, or a high level, or a low level.

[0624] As an example, the OOK time unit includes the CP (Cyclic Prefix) of the OFDM symbol.

[0625] As an example, the OOK time unit does not include the CP (Cyclic Prefix) of the OFDM symbol.

[0626] As an example, "at least one of the maximum output power value and the first transmit 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 maximum output power value and the first transmit 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.

[0627] As an example, "at least one of the maximum output power value and the first transmit 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 maximum output power value and the first transmit power value.

[0628] As an example, "at least one of the maximum output power value and the first transmit 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 maximum output power value and the first transmit power value depend on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0629] As an example, "at least one of the maximum output power value and the first transmit 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 maximum output power value and the first transmit power value depends on the number of bits carried in one OFDM symbol occupied by the first PRDCH in the time domain.

[0630] As an example, "at least one of the maximum output power value and the first transmit 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 maximum output power value and the first transmit power value depends on the number of information bits carried in one OFDM symbol occupied by the first PRDCH in the time domain.

[0631] As an example, "at least one of the maximum output power value and the first transmit 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 maximum output power value and the first transmit power value depends on the number of Manchester-coded bits carried in one OFDM symbol occupied by the first PRDCH in the time domain.

[0632] As an example, "at least one of the maximum output power value and the first transmit 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 maximum output power value and the first transmit 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.

[0633] As one embodiment, "at least one of the maximum output power value and the first transmit 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 maximum output power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0634] As one embodiment, "at least one of the maximum output power value and the first transmit 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 transmit power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0635] As one embodiment, "at least one of the maximum output power value and the first transmit 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: calculating (or setting or configuring) the value of at least one parameter of the maximum output power value to depend on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0636] As an example, "at least one of the maximum output power value and the first transmit 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: calculating (or setting or configuring) the value of at least one parameter of the first transmit power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0637] As an example, "at least one of the maximum output power value and the first transmit 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 maximum output power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0638] As an example, "at least one of the maximum output power value and the first transmit 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 transmit power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0639] As an example, "at least one of the maximum output power value and the first transmit 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 transmit power value depends on the frequency domain bandwidth of the first PRDCH, and 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.

[0640] As one embodiment, "at least one of the maximum output power value and the first transmit 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 of the maximum output power 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 supplementary embodiment of the above embodiment, associating the MPR value with the number of OOK time units takes into account the peak-to-average power ratio (PAPR) characteristics of OOK and ensures transmission efficiency.

[0641] As one embodiment, "at least one of the maximum output power value and the first transmit 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 maximum output power 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 supplementary embodiment to 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 without changing the existing MPR settings, it ensures transmission efficiency while optimizing overall performance.

[0642] As one embodiment, "at least one of the maximum output power value and the first transmit 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 maximum output power 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 supplementary embodiment to the above embodiment, associating the P-MPR value with the number of OOK time units incorporates the impact of OOK on power into the overall power management, simplifying the design while ensuring implementation flexibility.

[0643] As one embodiment, "at least one of the maximum output power value and the first transmit 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, A-MPR, or P-MPR for the maximum output power 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 supplementary embodiment of the above embodiment, associating the value of a parameter other than MPR, A-MPR, or P-MPR with the number of OOK time units takes into account the specific impact of OOK on power while providing maximum flexibility.

[0644] As one embodiment, "at least one of the maximum output power value and the first transmit 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 for the maximum output power value C，cThe 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 supplementary embodiment to the above example, ΔT... C，c The value is related to the number of OOK time units, taking the impact of OOK on power into the tolerance limit, thus reducing the impact on the standard.

[0645] As an example, "at least one of the maximum output power value and the first transmit 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: AP for the maximum output power value PowerClass The 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 supplementary embodiment to the above embodiment, AP... PowerClass The value is associated with the number of OOK time units, thereby taking into account the characteristics of OOK in the time domain in the power level setting (or power enhancement) to improve transmission performance.

[0646] As an example, "at least one of the maximum output power value and the first transmit 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 maximum output power value or the value of a parameter relating to the maximum output power 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.

[0647] As an example, "at least one of the maximum output power value and the first transmit 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 maximum output power value or the value of a parameter for the maximum output power value is linearly related to the logarithm of the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0648] As an example, "at least one of the maximum output power value and the first transmit 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 maximum output power value or the value of a parameter for the maximum output power value and the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain have a corresponding or mapping relationship according to a predefined table.

[0649] As an example, "at least one of the maximum output power value and the first transmit 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 transmit power value or the value of a parameter for the first transmit power 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.

[0650] As an example, "at least one of the maximum output power value and the first transmit 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 the first transmit power value or a parameter of the first transmit power value is linearly related to the logarithm of the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0651] As an example, "at least one of the maximum output power value and the first transmit 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 transmit power value or the value of a parameter for the first transmit power value and the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain have a corresponding or mapping relationship according to a predefined table.

[0652] As one embodiment, "at least one of the maximum output power value and the first transmit 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 transmit 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 This represents the number of RBs occupied or mapped by the first PRDCH.

[0653] As one embodiment, "at least one of the maximum output power value and the first transmit 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:

[0654] As one embodiment, the maximum output power value depends on a first parameter value, which is a parameter value obtained assuming the first PRDCH uses DFT-s-OFDM. The maximum output power 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 supplementary embodiment of the above embodiment, the first parameter value is the MPR value. As a supplementary embodiment of the above embodiment, the first parameter value is the A-MPR value. As a supplementary embodiment of the above embodiment, the first parameter value is the P-MPR value.

[0655] Example 12

[0656] Example 12 illustrates a structural block diagram of a processing device in a terminal according to an embodiment, as shown in the attached diagram. Figure 12 As shown. In the appendix Figure 12 In the terminal, the processing device 1200 includes a first transmitter 1201. The first transmitter 1201 includes the components specified in the appendix to this application. Figure 4 The transmitter / receiver 416 (including antenna 420), the transmitter processor 415, and the controller / processor 440 are included; the first receiver 1202 includes the appendix to this application. Figure 4 The transmitter / receiver 416 (including antenna 420), receiver processor 412, and controller / processor 440 are included.

[0657] In embodiment 12, the first transmitter 1201 receives a first information block; the first transmitter 1201 sends a first PRDCH; the first information block configures the first PRDCH; the first PRDCH uses OOK; wherein, the first PRDCH triggers an IoT access process, the transmit power value of the first PRDCH is equal to the smaller value between the maximum output power value and the first transmit power value, the maximum output power value depends on the power level of the sender of the first PRDCH, the first transmit power value depends on the value of a first counter; whether the first counter continues to count depends on whether the terminal successfully receives the PDRCH associated with the first PRDCH.

[0658] As an example, the PDRCH associated with the first PRDCH carries Msgl. When the terminal does not receive Msgl within the time window of the PDRCH associated with the first PRDCH, the value of the first counter is incremented by 1.

[0659] As an example, the first transmit power value depends on the product of the value of the first counter and the first step length, which is the power boost step length of the PRDCH used in the IoT access process.

[0660] As an example, multiple candidate step lengths correspond to multiple device types, and the first step length is the step length corresponding to the device type of the receiver of the first PRDCH among the multiple candidate step lengths. The device type includes at least one of type 1, type 2a and type 2b.

[0661] As an example, the first transmit power value is equal to the smaller of the first power value and the second power value, the first power value depending on the downlink path loss, and the second power value depending on the value of the first counter.

[0662] As an example, the first receiver 1202 receives a first PDRCH; the first PDRCH is a response to the first PDRCH; wherein the first PDRCH carries a first identifier, which is either the identifier of the sender of the first PDRCH or an identifier randomly generated by the sender of the first PDRCH.

[0663] As an example, at least one of the maximum output power value and the first transmit power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0664] Example 13

[0665] Example 13 illustrates a structural block diagram of a processing device for an Internet of Things (IoT) device according to an embodiment, as shown in the attached diagram. Figure 13 As shown. In the appendix Figure 13 In the IoT device, the processing unit 1300 includes a second receiver 1301. The second receiver 1301 includes the components specified in the appendix of this application. Figure 14 The receiver-related module 1409, BB (Baseband) logic 1413, memory 1418, and clock generator 1419 are included; the second transmitter 1302 includes the appendix to this application. Figure 14 The launch-related module 1417 in the middle.

[0666] In embodiment 13, the second receiver 1301 receives the first PRDCH; the first information block configures the first PRDCH; the first PRDCH uses OOK; wherein, the first PRDCH triggers the Internet of Things access process, the transmit power value of the first PRDCH is equal to the smaller value between the maximum output power value and the first transmit power value, the maximum output power value depends on the power level of the sender of the first PRDCH, the first transmit power value depends on the value of the first counter; whether the first counter continues to count depends on whether the terminal successfully receives the PDRCH associated with the first PRDCH.

[0667] As an example, the PDRCH associated with the first PRDCH carries Msg1. When the sender of the first PRDCH does not receive Msg1 within the time window of the PDRCH associated with the first PRDCH, the value of the first counter is incremented by 1.

[0668] As an example, the first transmit power value depends on the product of the value of the first counter and the first step length, which is the power boost step length of the PRDCH used in the IoT access process.

[0669] As an example, multiple candidate step lengths correspond to multiple device types, and the first step length is the step length corresponding to the device type of the IoT device among the multiple candidate step lengths. The device type includes at least one of type 1, type 2a and type 2b.

[0670] As an example, the first transmit power value is equal to the smaller of the first power value and the second power value, the first power value depending on the downlink path loss, and the second power value depending on the value of the first counter.

[0671] As an example, the second transmitter 1302 sends a first PDRCH; the first PDRCH is a response to the first PDRCH; wherein the first PDRCH carries a first identifier, the first identifier being the identifier of the IoT device or an identifier randomly generated by the IoT device.

[0672] As an example, at least one of the maximum output power value and the first transmit power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0673] Example 14

[0674] Example 14 illustrates a schematic diagram of the structure of an A-IoT device according to an embodiment of this application, as shown in the attached diagram. Figure 14 As shown.

[0675] Appendix Figure 14In this embodiment, 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 for matching the impedance between the antenna 1401 and other components, including a radio frequency (RF) energy harvester 1403 and a receiver-related module 1409. The A-IoT device 1400 may also include an energy harvester, which can be either an RF energy harvester 1403 or a non-RF energy harvester 1407. The RF energy harvester 1403 may include a rectifier that performs RF signal (AC) to DC conversion. The RF energy harvester 1403 and the receiver / transmitter may share the antenna 1401, or they may use independent antennas. The energy-related module 1404 may include a power management unit (PMU) 1405; the PMU 1405 is responsible for storing energy from the energy harvester in energy storage 1406 and supplying power to active component blocks that require power. The energy-related module 1404 may also include energy storage 1406; the energy storage 1406 stores energy collected from the energy harvester, and the energy storage 1406 may be a capacitor. The processing module 1408 may include a BB (Baseband) logic 1413, a 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: non-volatile memory (NVM), such as EEPROM, for permanent storage of the device ID; and a register for temporarily storing information needed for operation only when energy in the energy storage 1406 is available. The clock generator 1419 provides the required clock signal. The processing module 1408 may also include reception-related blocks 1409 and transmission-related blocks 1417. For different A-IoT devices, the reception-related block 1409 and the transmission-related block 1417 may include different modules.

[0676] As an example, for an A-IoT device 1400 with a peak power consumption of approximately 1 μW, the receive correlation module 1409 may include an RF BPF 1410, an RF envelope detector (RF-ED), a BB LPF 1411, and a comparator 1412. The transmit correlation module 1417 may include a backscatter modulator.

[0677] As a non-limiting embodiment, the output of the matching network 1402 is processed sequentially by the RFBPF 1410, the radio frequency envelope detector, the BBLPF 1411, and the comparator 1412 before being 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.

[0678] As an example, for an A-IoT device 1400 with peak power consumption less than or equal to several hundred μW, if an external carrier wave is used, the receive correlation module 1409 may include an RFBPF 1410, an LNA (Low-noise amplifier), an RF envelope detector, a BB amplifier, a BBLPF 1411, and a comparator / N-bit ADC 1412. The transmit correlation module 1417 may include a large frequency shifter (e.g., tens 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) can be amplified by the reflection amplifier or the LNA. The large frequency shifter shifts the backscattered signal from one frequency (e.g., an FDD-DL frequency) to another frequency (e.g., an FDD-UL frequency).

[0679] As a non-limiting embodiment, the output of the matching network 1402 is processed sequentially through RFBPF 1410, LNA, RF envelope detector, BB amplifier, BBLPF 1411, and comparator / N-bit ADC 1412 before being input to BB logic 1413. The output of BB logic 1413 is then processed by a large frequency shifter, backscatter modulator, and reflection amplifier before being transmitted by antenna 1401.

[0680] As an example, for an A-IoT device 1400 with peak power consumption less than or equal to several hundred μW, if an internally generated carrier wave is used and an RF envelope detector receiver is employed, the receive-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 transmit-related module 1417 may include a transmit modulator (Tx modulator), a digital-to-analog converter (DAC), a low-pass filter, a mixer, a local oscillator (LO) / FLL ( / PLL), and a power amplifier (PA).

[0681] As a non-limiting embodiment, the output of the matching network 1402 is processed sequentially through an RF BPF 1410, an LNA, an RF envelope detector, a BB amplifier, a BB LPF 1411, and a comparator / N-bit ADC 1412 before being input to the BB logic 1413. The output of the BB logic 1413 is then processed by a transmit modulator, a digital-to-analog converter, a low-pass filter, a mixer, a LO / FLL ( / PLL), and a power amplifier before being transmitted by the antenna 1401.

[0682] As an example, for an A-IoT device 1400 with peak power consumption less than or equal to several hundred μW, if an internally generated carrier wave is used and an IF envelope detector receiver is employed, the receive-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 transmit-related module 1417 may include a transmit modulator, a digital-to-analog converter, a low-pass filter, a mixer, a 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 receive-related module 1409 down-converts the RF signal to the IF stage. Depending on the implementation, there can be one or two mixers for both the transmitter and receiver.

[0683] As a non-limiting embodiment, the output of the matching network 1402 is processed sequentially through 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 before being 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, a LO / FLL ( / PLL), and a power amplifier before being transmitted by the antenna 1401.

[0684] As an example, for an A-IoT device 1400 with peak power consumption less than or equal to several hundred μW, if an internally generated carrierwave is used and a zero-IF (ZIF) receiver is employed, the receive-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 transmit-related module 1417 may include a transmit modulator, a digital-to-analog converter, a low-pass filter, a mixer, a LO / FLL ( / PLL), and a power amplifier. The mixer in the receive-related module 1409 down-converts the RF signal to the BB stage. Depending on the implementation, there may be one or two mixers for both the transmitter and receiver.

[0685] As a non-limiting embodiment, the output of the matching network 1402 is processed sequentially through an RF BPF 1410, an LNA, a mixer, a BB amplifier, a BB LPF 1411, and a comparator / N-bit ADC 1412 before being 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, a LO / FLL ( / PLL), and a power amplifier before being transmitted by the antenna 1401.

[0686] In the above embodiments, the RF BPF 1410 is used to enhance selectivity; depending on the implementation, the RF BPF 1410 may not be present. The BB LPF 1411 is used to filter out harmonics and high-frequency components, improving the input signal quality of the comparator / ADC 1412; depending on the implementation, the BB LPF 1411 may not be present. 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 improve signal strength and receiver 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 improve signal strength. The transmit modulator is used to modulate the baseband bits according to the modulation scheme; the transmit modulator may be part of the BB logic 1413. The digital-to-analog converter is used to convert the digital signal to an analog signal. The low-pass filter is used to filter out unwanted signals. The mixer in the transmit correlation module 1417 is used to upconvert the baseband signal to the RF range. The LO (Local Optical Array) is used to generate the carrier frequency; the FLL ( / PLL) can be used for frequency synthesis, and depending on the implementation, the FLL ( / PLL) may not be present. The power amplifier is used to amplify the transmitted signal.

[0687] As an example, the A-IoT device is the Internet of Things device described in this application.

[0688] It should be noted that the structure of the A-IoT device in this example does not limit the specific implementation of A-IoT in this application. Specifically, depending on 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, or it may include only some modules of the structure of the A-IoT device in this example, and it may also include the aforementioned appendix. Figure 14 Other modules not shown.

[0689] Those skilled in the art will understand that all or part of the steps in the above methods can be implemented by a program instructing related hardware, and the program can be stored in a computer-readable storage medium, such as a read-only memory, hard disk, or optical disk. Optionally, all or part of the steps in 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 hardware or in the form of software functional modules. This application is not limited to any specific combination of software and hardware. The terminal or base station or UE in this application includes, but is not limited to, mobile phones, tablets, laptops, network cards, low-power devices, IoT devices, eMTC devices, NB-IoT devices, vehicle communication devices, aircraft, airplanes, drones, remote-controlled airplanes, testing devices, testing equipment, testing instruments, etc. The base station equipment or base station or network-side equipment in this application includes, but is not limited to, macrocell base stations, microcell base stations, home base stations, relay base stations, eNBs, gNBs, Transmitter Receiver Nodes (TRPs), relay satellites, satellite base stations, airborne base stations, testing devices, testing equipment, testing instruments, etc.

[0690] Those skilled in the art will understand that the present invention can be practiced in other specified forms without departing from its core or essential characteristics. Therefore, the embodiments disclosed herein should in any way be considered descriptive rather than restrictive. The scope of the invention is defined by the appended claims rather than the foregoing description, and all modifications within their equivalent meaning and scope are considered to be included therein.

Claims

1. A method for use in a terminal, characterized in that, include: Receive the first information block; Send the first PRDCH; The first information block configures the first PRDCH; The first PRDCH uses OOK; Wherein, the first PRDCH triggers the IoT access process, the transmit power value of the first PRDCH is equal to the smaller value between the maximum output power value and the first transmit power value, the maximum output power value depends on the power level of the sender of the first PRDCH, the first transmit power value depends on the value of the first counter; whether the first counter continues to count depends on whether the terminal successfully receives the PDRCH associated with the first PRDCH.

2. The method according to claim 1, characterized in that, The PDRCH associated with the first PRDCH carries Msg1. When the terminal does not receive Msg1 within the time window of the PDRCH associated with the first PRDCH, the value of the first counter is incremented by 1.

3. The method according to claim 1 or 2, characterized in that, The first transmit power value depends on the product of the value of the first counter and the first step length, which is the power boost step size of the PRDCH used in the IoT access process.

4. The method according to claim 3, characterized in that, Multiple candidate step sizes correspond to multiple device types, and the first step size is the step size corresponding to the device type of the receiver of the first PRDCH among the multiple candidate step sizes. The device type includes at least one of type 1, type 2a and type 2b.

5. The method according to any one of claims 1-4, characterized in that, The first transmit power value is equal to the smaller of the first power value and the second power value, the first power value depends on the downlink path loss, and the second power value depends on the value of the first counter.

6. The method according to any one of claims 1-5, characterized in that, include: Receive the first PDRCH; the first PDRCH is a response to the first PDRCH; The first PDRCH carries a first identifier, which is either the identifier of the sender of the first PDRCH or an identifier randomly generated by the sender of the first PDRCH.

7. The method according to any one of claims 1-6, characterized in that, At least one of the maximum output power value and the first transmit power value depends on the number of OOK time units included in one 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 including computer instructions, and the one or more processors call the computer instructions to cause the terminal to perform the method as described in any one of claims 1-7.

9. A method for use in Internet of Things (IoT) devices, characterized in that, include: Receive the first PRDCH; configure the first PRDCH with the first information block; The first PRDCH uses OOK; Wherein, the first PRDCH triggers the IoT access process, the transmit power value of the first PRDCH is equal to the smaller value between the maximum output power value and the first transmit power value, the maximum output power value depends on the power level of the sender of the first PRDCH, the first transmit power value depends on the value of the first counter; whether the first counter continues to count depends on whether the terminal successfully receives the PDRCH associated with the first PRDCH.

10. The method according to claim 9, characterized in that, The PDRCH associated with the first PRDCH carries Msg1. When the sender of the first PRDCH does not receive Msg1 within the time window of the PDRCH associated with the first PRDCH, the value of the first counter is incremented by 1.

11. The method according to claim 9 or 10, characterized in that, The first transmit power value depends on the product of the value of the first counter and the first step length, which is the power boost step size of the PRDCH used in the IoT access process.

12. The method according to any one of claims 11, characterized in that, Multiple candidate step lengths correspond to multiple device types, and the first step length is the step length corresponding to the device type of the IoT device among the multiple candidate step lengths. The device type includes at least one of type 1, type 2a and type 2b.

13. The method according to any one of claims 9-12, characterized in that, include: The first transmit power value is equal to the smaller of the first power value and the second power value, the first power value depends on the downlink path loss, and the second power value depends on the value of the first counter.

14. The method according to any one of claims 9-13, characterized in that, include: Send the first PDRCH; the first PDRCH is a response to the first PDRCH; The first PDRCH carries a first identifier, which is either the identifier of the IoT device or a randomly generated identifier by the IoT device.

15. The method according to any one of claims 9-14, characterized in that, At least one of the maximum output power value and the first transmit power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

16. An Internet of Things (IoT) device, characterized in that, The Internet of Things (IoT) 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 including computer instructions, and the one or more processors call the computer instructions to cause the IoT device to perform the method as described in any one of claims 9-15.

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