Method and apparatus used in internet-of-things communication node for wireless communication

Abstract

Disclosed in the present application are a method and apparatus used in an Internet-of-Things communication node for wireless communication. The method comprises: a node receiving a first information block, and sending a first PRDCH, wherein the first information block configures the first PRDCH; the first PRDCH uses OOK; and a transmission power value of the first PRDCH is equal to the smaller value between a maximum output power value and a first transmission power value, the maximum output power value depends on a power class of a sender of the first PRDCH, the first transmission power value is equal to the smaller value between a first power value and a second power value, the first power value depends on a downlink path loss, and the second power value depends on whether an Internet-of-Things access process triggered by the first PRDCH is an initial Internet-of-Things access process. The present application optimizes power control and improves transmission quality.

Description

A method and apparatus for use in nodes for Internet of Things (IoT) communication in wireless communication.

[0001] This application claims priority to Chinese Patent Application No. 202411627334.1, filed on November 13, 2024, entitled "A Method and Apparatus in a Node for Internet of Things Communication in Wireless Communication", the entire contents of which are incorporated herein by reference. Technical Field

[0002] 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

[0003] 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) 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

[0004] 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.

[0005] This application discloses a solution to the problem of power control using OOK signals. It should be noted that the description in this application only uses the 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 the transmit power of OOK needs to be considered, or scenarios where different powers are used for initial access and non-initial access using OOK signals, 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 can also help reduce hardware complexity and cost. Where there is no conflict, the embodiments and features described in this application used in terminals can be applied to the devices used in this application for IoT devices or base stations, and vice versa.

[0006] This application discloses a method for use in a terminal, characterized by comprising:

[0007] Receive the first information block;

[0008] Send the first PRDCH; configure the first PRDCH in the first information block; use OOK for the first PRDCH;

[0009] Wherein, 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 is equal to the smaller value between 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 whether the IoT access process triggered by the first PRDCH is the initial IoT access process.

[0010] As an example, considering the terminal as a reader device, different power is used for sending the initial paging signal and the paging signal resent after paging failure. A lower transmission power is used when sending the initial paging signal to save power and reduce interference to other links. A higher transmission power is used when resending the paging signal to increase the probability of successful access of IoT devices during repeated paging, reduce the implementation complexity, optimize the transmission power of PRDCH, and improve performance.

[0011] According to one aspect of this application, the above method is characterized in that, when the IoT access process triggered by the first PRDCH is a non-initial IoT access process, the second power value is equal to the maximum output power value; when the IoT access process triggered by the first PRDCH is an initial IoT access process, the second power value depends on the configuration of the first information block.

[0012] According to one aspect of this application, the method is characterized in that the second power value is linearly related to a third power value, the third power value depending on the device type of the receiver of the first PRDCH, the device type including at least one of type 1, type 2a and type 2b.

[0013] According to one aspect of this application, the method is characterized in that at least one of the maximum output power value and the second power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0014] According to one aspect of this application, the above method is characterized by comprising:

[0015] Receive the first PDRCH, which is a response to the first PDRCH;

[0016] The first PDRCH carries a first device identifier, which is the identifier of the receiver of the first PDRCH, and the first PDRCH carries at least the first device identifier.

[0017] According to one aspect of this application, the above method is characterized in that the second power value is linearly related to the fourth power value, the fourth power value depending on whether the first PRDCH carries L1 control information.

[0018] According to one aspect of this application, the above method is characterized in that the first PRDCH includes a control sub-signal and a data sub-signal, the control sub-signal carrying control information bits, the data sub-signal carrying data information bits, the time-domain interval length between the control sub-signal and the data sub-signal being equal to or not less than the minimum number of OFDM symbols of a first time interval, the first time interval being equal to an absolute time or equal to a plurality of OOK time units.

[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 method for use in Internet of Things (IoT) devices, characterized by comprising:

[0023] Receive the first PRDCH; configure the first PRDCH with the first information block, wherein the first PRDCH uses OOK;

[0024] Wherein, 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 is equal to the smaller value between 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 whether the IoT access process triggered by the first PRDCH is the initial IoT access process.

[0025] According to one aspect of this application, the above method is characterized in that, when the IoT access process triggered by the first PRDCH is a non-initial IoT access process, the second power value is equal to the maximum output power value; when the IoT access process triggered by the first PRDCH is an initial IoT access process, the second power value depends on the configuration of the first information block.

[0026] According to one aspect of this application, the above method is characterized in that the second power value is linearly related to the third power value, the third power value depending on the device type of the Internet of Things device, the device type including at least one of type 1, type 2a and type 2b.

[0027] According to one aspect of this application, the method is characterized in that at least one of the maximum output power value and the second power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0028] According to one aspect of this application, the above method is characterized by comprising:

[0029] Send the first PDRCH, which is a response to the first PDRCH;

[0030] The first PDRCH carries a first device identifier, which is the identifier of the IoT device, and the first PDRCH carries at least the first device identifier.

[0031] According to one aspect of this application, the above method is characterized in that the second power value is linearly related to the fourth power value, the fourth power value depending on whether the first PRDCH carries L1 control information.

[0032] According to one aspect of this application, the above method is characterized in that the first PRDCH includes a control sub-signal and a data sub-signal, the control sub-signal carrying control information bits, the data sub-signal carrying data information bits, the time-domain interval length between the control sub-signal and the data sub-signal being equal to or not less than the minimum number of OFDM symbols of a first time interval, the first time interval being equal to an absolute time or equal to a plurality of OOK time units.

[0033] This application discloses an Internet of Things (IoT) device, characterized in that the IoT device includes: one or more processors and a memory;

[0034] 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.

[0035] As an example, compared with conventional solutions, this application has the following advantages:

[0036] Power control has been optimized;

[0037] Improved transmission performance;

[0038] This improved the reliability of transmission and enhanced the robustness of the system. Attached Figure Description

[0039] 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:

[0040] Figure 1 illustrates a flowchart of terminal transmission according to an embodiment of this application;

[0041] Figure 2 shows a schematic diagram of a network architecture according to an embodiment of this application;

[0042] Figure 3 illustrates a schematic diagram of the wireless protocol architecture of the user plane and control plane according to an embodiment of this application;

[0043] Figure 4 shows a schematic diagram of a terminal and an Internet of Things device according to an embodiment of this application;

[0044] Figure 5 illustrates a flowchart of transmission between a terminal and an IoT device according to an embodiment of this application;

[0045] Figure 6 shows a schematic diagram of the relationship between the first PRDCH and the second power value according to an embodiment of this application;

[0046] Figure 7 illustrates a schematic diagram of the relationship between a third power value and the device type of the receiver of a first PRDCH according to an embodiment of this application;

[0047] Figure 8 shows a schematic diagram of an OOK time unit according to an embodiment of this application;

[0048] Figure 9 illustrates a schematic diagram of the relationship between the first PRDCH and the first PDRCH according to an embodiment of this application;

[0049] Figure 10 shows a schematic diagram of a first PRDCH carrying L1 control information according to an embodiment of this application;

[0050] Figure 11 shows a schematic diagram of the relationship between control sub-signals and data sub-signals according to an embodiment of this application;

[0051] Figure 12 shows a structural block diagram of a processing device for a terminal according to an embodiment of the present application;

[0052] Figure 13 shows a structural block diagram of a processing apparatus for an Internet of Things device according to an embodiment of the present application;

[0053] Figure 14 shows a schematic diagram of the structure of an A-IoT device according to an embodiment of this application. Detailed Implementation

[0054] 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.

[0055] Example 1

[0056] Example 1 illustrates a flowchart 100 of terminal transmission according to an embodiment of this application, as shown in Figure 1. In Figure 1, each block represents a step, and it is particularly important to emphasize that the order of the blocks in the figure does not restrict the temporal sequence of the represented steps.

[0057] In Embodiment 1, the terminal in this application receives a first information block in step 101; the terminal in this application sends a first PRDCH in step 102; the first information block configures the first PRDCH; the first PRDCH uses OOK; wherein, 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 is equal to the smaller value between 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 whether the IoT access process triggered by the first PRDCH is the initial IoT access process.

[0058] As an example, the terminal is a reader device of the Internet of Things (IoT) device in this application.

[0059] As an example, the IoT device in this application is an Ambient IoT (A-IoT) device.

[0060] As an example, the IoT device in this application is a low-power IoT device.

[0061] As one embodiment, the first information block is transmitted via an air interface or a wireless interface.

[0062] As one embodiment, the first information block includes all or part of a higher-layer signaling or physical-layer signaling.

[0063] 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.

[0064] As an example, the first information block is carried via PDSCH (Physical Downlink Shared Channel).

[0065] As one embodiment, the first information block is either cell-specific or user equipment-specific.

[0066] 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.

[0067] As an example, the first information block includes at least one field in a DCI (Downlink Control Information) format.

[0068] 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.

[0069] As one example, the first information block includes at least one field in the IE "PRDCH-Config".

[0070] As an example, the first information block includes at least one field in the IE "BWP-R2DDedicated".

[0071] As one example, the first information block includes at least one field in the IE “R2D-Config”.

[0072] As an example, the first information block includes at least one field in the IE "R2D-BWP-Config".

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

[0074] As an example, the first information block includes at least one field in the IE "ServingCellConfig".

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

[0076] As an example, the first information block includes at least one field in the IE “BWP-Uplink”.

[0077] As one example, the first information block is transmitted within the terminal.

[0078] As one embodiment, the first information block is passed from the higher layer of the terminal to the physical layer of the terminal.

[0079] As one embodiment, the first information block is transmitted from the core network to the terminal.

[0080] As an example, the first information block is configured.

[0081] As an example, the first information block is pre-configured.

[0082] As an example, the inclusion of higher-level information in the first information block helps reduce signaling overhead and standard impact while maintaining good compatibility.

[0083] As an example, the first information block is transmitted on the PDCCH (Physical Downlink Control Channel).

[0084] As an example, the first information block is transmitted on the PRDCH (Physical Reader to Device Channel).

[0085] As an example, the first information block may include DCI or be transmitted on PDCCH, which can provide greater flexibility.

[0086] As an example, the first information block includes at least one field in the DCI format for scheduling R2D links.

[0087] As an example, the first information block includes at least one field in DCI format 5_X, where X is a non-negative integer.

[0088] As an example, the first information block includes at least one field in DCI format 6_X, where X is a non-negative integer.

[0089] As an example, the first information block adopts the new DCI format, which improves design flexibility.

[0090] As an example, the recipient of the first PRDCH is an IoT (Internet of Things) device.

[0091] As an example, the recipient of the first PRDCH is an Ambient IoT (A-IoT) device.

[0092] As an example, the recipient of the first PRDCH is an RFID (Radio Frequency Identification) device.

[0093] As an example, the recipient of the first PRDCH and the IoT device in this application are equivalent or can be used interchangeably.

[0094] As an example, the first PRDCH is a baseband signal or radio frequency signal of PRDCH (Physical Reader to Device Channel).

[0095] As one example, the first PRDCH is transmitted over a physical channel from the reader to the IoT device.

[0096] As an example, the first PRDCH carries physical layer control information.

[0097] As an example, the first PRDCH carries physical layer control information and higher layer control information.

[0098] As an example, the first PRDCH includes a preamble.

[0099] As an example, the first PRDCH does not include a preamble.

[0100] As an example, the first PRDCH carries all or part of the bits in a TB (transport block).

[0101] As an example, all or part of the bits in a TB are used to generate the first PRDCH.

[0102] As an example, the first PRDCH is a paging PRDCH.

[0103] As an example, the first PRDCH carries paging information.

[0104] As one example, the first PRDCH carries the paging message of the A-IoT device.

[0105] As an example, the first PRDCH carries a device ID of an A-IoT device.

[0106] As an example, the first PRDCH carries the device ID of the target receiver of the first PRDCH.

[0107] As an example, the first PRDCH carries a group identifier, which corresponds to multiple A-IoT devices.

[0108] As one example, the first PRDCH carries the identifiers of multiple A-IoT devices.

[0109] As an example, the first PRDCH is used to trigger the IoT access process.

[0110] As an example, the first PRDCH is used to trigger the random access procedure of the IoT device in this application.

[0111] As one example, "the first PRDCH adopts OOK" includes: the first PRDCH is a signal that only includes high and low levels.

[0112] As an example, "the first PRDCH uses OOK" includes: the modulation scheme of the first PRDCH includes OOK.

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

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

[0115] As an example, "the first PRDCH uses OOK" includes: OOK is used in the waveform of the first PRDCH.

[0116] As an example, "the first PRDCH adopts OOK" includes: the input sequence for the transform precoding of the first PRDCH is a bit sequence.

[0117] 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.

[0118] As an example, "the first PRDCH adopts OOK" includes: the input sequence for transform precoding of the first PRDCH is an On / Off sequence.

[0119] 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.

[0120] As an example, the input sequence for the transform precoding of the first PRDCH is a linearly encoded bit sequence.

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

[0122] As an example, the transform precoding for the first PRDCH includes DFT (Discrete Fourier Transform).

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

[0124] As an example, the number of RBs (resource blocks) occupied by the first PRDCH in the frequency domain is equal to... Where α2, α3, and α5 are all non-negative integers.

[0125] As an example, the first PRDCH is a high / low level signal or an On / Off signal.

[0126] 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.

[0127] 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.

[0128] As one embodiment, “the first information block configures the first PRDCH” includes: the first information block instructs the first PRDCH to use OOK.

[0129] 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.

[0130] 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.

[0131] 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.

[0132] 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.

[0133] As one embodiment, “the first information block configures the first PRDCH” includes: the first information block indicates the subcarrier interval for the first PRDCH.

[0134] 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.

[0135] 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.

[0136] 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.

[0137] As one embodiment, “the first information block configures the first PRDCH” includes: the first information block indicating the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

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

[0141] 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.

[0142] 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.

[0143] 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.

[0144] 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.

[0145] As one embodiment, “the first information block configures the first PRDCH” includes: the first information block indicating the P0 value in the open loop power control of the first PRDCH.

[0146] 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.

[0147] As one embodiment, "the first information block configures the first PRDCH" includes: the first information block instructs the P of the first PRDCH. EMAX,c 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 transmit power value.

[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 first power value.

[0150] 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.

[0151] 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.

[0152] 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.

[0153] 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.

[0154] 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.

[0155] As an example, the unit of the transmit power value of the first PRDCH is watts or milliwatts.

[0156] As an example, the unit of the transmit power value of the first PRDCH is dBm.

[0157] 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.

[0158] As an example, the transmit power value of the first PRDCH is the transmit power value of the first PRDCH at the antenna connector.

[0159] As an example, the transmit power value of the first PRDCH is the transmit power value of the baseband of the first PRDCH.

[0160] As an example, the transmit power value of the first PRDCH is the transmit power value of the first PRDCH at radio frequency.

[0161] As an example, the transmit power value of the first PRDCH does not include antenna gain.

[0162] As an example, the transmit power value of the first PRDCH includes the antenna gain.

[0163] As an example, the transmit power value of the first PRDCH corresponds to P PRDCH .

[0164] 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.

[0165] 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.

[0166] 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.

[0167] As an example, the transmit power value of the first PRDCH is the normalized transmit power value of the first PRDCH.

[0168] 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.

[0169] As an example, the maximum output power value corresponds to P CMAX The value of .

[0170] As an example, the maximum output power value is the P value corresponding to the first PRDCH. CMAX,f,c The value of (i).

[0171] 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.

[0172] As an example, the unit of the maximum output power value is dBm (millidecibels).

[0173] As an example, the unit of the maximum output power value is watts or milliwatts.

[0174] As an example, the maximum output power value is configured per carrier.

[0175] As an example, the maximum output power value is configured per cell.

[0176] As an example, the maximum output power value is the maximum output power allowed per carrier.

[0177] As an example, the maximum output power value is the configured maximum output power of the terminal.

[0178] 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.

[0179] As an example, the maximum output power value is the value of the user-configured maximum output power (UE configured maximum output power).

[0180] As an example, the maximum output power value is the difference between the maximum output power configured in the terminal and an offset value.

[0181] 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).

[0182] As an example, the maximum output power value is the maximum output power value configured for the R2D of the terminal.

[0183] As an example, the maximum output power value is within a certain range.

[0184] As an example, the range of the maximum output power value is a closed interval.

[0185] As an example, the maximum output power value is configured by the terminal itself within the range of the maximum output power value.

[0186] 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.

[0187] As an example, the unit of the first transmit power value is dBm (millidecibels).

[0188] As an example, the unit of the first transmit power value is watts or milliwatts.

[0189] As an example, the first transmit power value is a variable or expression used to calculate the transmit power value of the first PRDCH.

[0190] 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.

[0191] 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 PRDPH,D (i) represents the first power value, P PRDCH (i) represents the second power value.

[0192] As an example, the sender of the first PRDCH is the terminal.

[0193] 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.

[0194] As an example, the power level of the sender of the first PRDCH includes a tolerance range.

[0195] As an example, the power level of the sender of the first PRDCH does not include tolerance range.

[0196] 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.

[0197] 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.

[0198] 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.

[0199] As one embodiment, "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.

[0200] 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.

[0201] 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 , where P CMAC_L,f,c =MIN{P EMAX,c -ΔT C,c ,(P PowerClass -ΔP PowerClass )-MAX(MAX(MPR c + ΔMPR c A-MPR c )+ΔT IB,c +ΔT C,c +ΔT RxSRS P-MPR c )},

[0202] P CMAX_H,f,c =MIN{P EMAX,c ,P PowerClass -ΔP PowerClass},

[0203] 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 cIt 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, ΔT RxSRS 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.

[0204] 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.

[0205] 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.

[0206] As an example, the maximum output power value also depends on the capability of the transmitter of the first PRDCH.

[0207] As an example, the maximum output power value also depends on the configuration of higher-level parameters.

[0208] 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.

[0209] 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.

[0210] As an example, the unit of the first power value is dBm (millidecibels).

[0211] As an example, the unit of the first power value is watts or milliwatts.

[0212] As an example, the first power value is P PRDCH,D The value of (i).

[0213] As an example, the first power value is P PRDCH,DThe value of .

[0214] 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.

[0215] 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.

[0216] 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.

[0217] As an example, the first power value is a transmit power value obtained by power control of a virtual (or referenced) uplink signal.

[0218] As an example, the unit of the second power value is dBm (millidecibels).

[0219] As an example, the unit of the second power value is watts or milliwatts.

[0220] As an example, the second power value is P PRDCH The value of (i).

[0221] As an example, the second power value is P PRDCH The value of .

[0222] 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.

[0223] 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.

[0224] 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.

[0225] 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.

[0226] As an example, the downlink path loss is a downlink path loss (PL) estimate.

[0227] As an example, the downlink path loss is measured in dB.

[0228] As an example, the downlink path loss corresponds to PL D .

[0229] As an example, the downlink path loss corresponds to PL b,f,c (q d ).

[0230] As an example, the downlink path loss is calculated by the terminal using a reference signal (RS).

[0231] As an example, the downlink path loss is calculated by the terminal using a reference signal in the active downlink BWP.

[0232] 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.

[0233] 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.

[0234] 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.

[0235] 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,f,cIt is a downlink path loss estimate calculated based on the reference signal used by the terminal in an active downlink BWP.

[0236] 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.

[0237] 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.

[0238] 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.

[0239] 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.

[0240] 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.

[0241] 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.

[0242] 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.

[0243] 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.

[0244] 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.

[0245] As one embodiment, "the first power value depends on the downlink path loss" includes: the first power value is P PRDCH,D (i),

[0246] 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 path loss for the downlink.

[0247] As an example, the IoT access process is the random access process for IoT devices in this application.

[0248] As an example, the IoT access process includes the contention-based random access process for IoT devices as described in this application.

[0249] As an example, the IoT access process includes the Contention-Free Random Access (CFRA) process for IoT devices as described in this application.

[0250] 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.

[0251] 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, the terminal responding to Msg1 with Msg2, and the IoT device sending Msg3.

[0252] As an example, the IoT access process is an inventory process.

[0253] As an example, the IoT access process is an inventory and command process.

[0254] As one example, the IoT access process includes paging (or Msg0) and message 1 (Msg1).

[0255] As an example, the IoT access process includes paging (or Msg0), message 1 (Msg1), message 2 (Msg2), and message 3 (Msg3).

[0256] As one embodiment, the first PRDCH carries paging information, and the terminal sends the first PRDCH and triggers the IoT access process.

[0257] As an example, the first PRDCH carries paging information, and the terminal initiates the IoT access process after sending the first PRDCH.

[0258] As one embodiment, the first PRDCH carries paging information, and the terminal triggers the IoT access process upon receiving the PDRCH associated with the first PRDCH.

[0259] As an example, the first PRDCH carries paging information, and the recipient of the first PRDCH initiates the IoT access process after receiving the first PRDCH.

[0260] As an example, the first PRDCH carries paging information, and the receiver of the first PRDCH sends a PDRCH to initiate a random access procedure after receiving the first PRDCH.

[0261] As an example, the initial IoT access process is the IoT access process triggered when the terminal first sends paging information to the IoT device in this application.

[0262] As an example, the initial IoT access process is the first IoT access process triggered by the higher layer of the terminal.

[0263] As an example, the initial IoT access process is the earliest IoT access process after the IoT access process counter is reset.

[0264] As an example, the initial IoT access process is the earliest IoT access process where the IoT access process counter equals 0.

[0265] As an example, the initial IoT access process is a random access process of the IoT device triggered by the terminal sending paging information to the IoT device in this application for the first time.

[0266] As an example, the initial IoT access process is a random access process triggered by the terminal sending the PRDCH for the first time.

[0267] As an example, the initial IoT access process is a random access process performed when the IoT device and the terminal in this application have not established a connection.

[0268] As an example, the initial IoT access process is a random access process triggered by the first PRDCH transmission sent by the IoT device in this application when no connection has been established with the terminal.

[0269] As an example, the IoT access process triggered by the first PRDCH is an initial IoT access process, which includes: the first PRDCH is the PRDCH that the terminal sends to the IoT device in this application for the first time.

[0270] As an example, the IoT access process triggered by the first PRDCH is an initial IoT access process, which includes: the first PRDCH is a PRDCH carrying paging information sent by the IoT device in this application when the terminal has not established a connection.

[0271] As an example, the IoT access process triggered by the first PRDCH is the initial IoT access process, which includes: the first PRDCH is the first PRDCH transmission sent by the IoT device in this application when no connection has been established with the terminal.

[0272] As an example, the non-initial IoT access process is a retry of the IoT access process.

[0273] As an example, the non-initial IoT access process is the terminal retry IoT access process in this application.

[0274] As an example, the non-initial IoT access process is an IoT access process triggered by a retransmission of a PRDCH carrying paging information.

[0275] As an example, the non-initial IoT access process is the access process triggered by the retransmission of PRDCH after the terminal's previous IoT access process failed.

[0276] As an example, the non-initial IoT access process is the access process triggered when the terminal in this application sends a PRDCH again after failing to detect the PDRCH in the corresponding time window during its previous PRDCH transmission.

[0277] As an example, the IoT access process triggered by the first PRDCH is a non-initial IoT access process, including: the terminal in this application sent paging information before the first PRDCH.

[0278] As an example, the IoT access process triggered by the first PRDCH is a non-initial IoT access process, including: the terminal in this application sent a PRDCH to the IoT device in this application before the first PRDCH.

[0279] As an example, the first counter is a counter for the number of IoT access processes. When the value of the first counter is 1, the IoT access process triggered by the first PRDCH is the initial IoT access process; when the value of the first counter is greater than 1, the IoT access process triggered by the first PRDCH is a non-initial IoT access process.

[0280] As an example, the first counter is a counter for the number of IoT access processes. When the value of the first counter is 1, the IoT access process triggered by the first PRDCH is the initial IoT access process; otherwise, the IoT access process triggered by the first PRDCH is a non-initial IoT access process.

[0281] As one embodiment, "the second power value depends on whether the IoT access process triggered by the first PRDCH is an initial IoT access process" includes: the second power value is related to whether the IoT access process triggered by the first PRDCH is an initial IoT access process.

[0282] As one embodiment, "the second power value depends on whether the IoT access procedure triggered by the first PRDCH is an initial IoT access procedure" includes: whether the IoT access procedure triggered by the first PRDCH is an initial IoT access procedure is used to determine the second power value.

[0283] As one embodiment, "the second power value depends on whether the IoT access process triggered by the first PRDCH is an initial IoT access process" includes: whether the IoT access process triggered by the first PRDCH is an initial IoT access process is used by the terminal to calculate or determine the second power value.

[0284] As one embodiment, "the second power value depends on whether the IoT access process triggered by the first PRDCH is an initial IoT access process" includes: at least one parameter for calculating the second power value depends on whether the IoT access process triggered by the first PRDCH is an initial IoT access process.

[0285] As one embodiment, "the second power value depends on whether the IoT access process triggered by the first PRDCH is an initial IoT access process" includes: at least one parameter included in the second power value depends on whether the IoT access process triggered by the first PRDCH is an initial IoT access process.

[0286] As one embodiment, "the second power value depends on whether the IoT access process triggered by the first PRDCH is an initial IoT access process" includes: calculating the power offset P of the second power value. offset It depends on whether the IoT access process triggered by the first PRDCH is the initial IoT access process.

[0287] As one embodiment, "the second power value depends on whether the IoT access process triggered by the first PRDCH is an initial IoT access process" includes: whether the power offset for calculating the second power value depends on whether the IoT access process triggered by the first PRDCH is an initial IoT access process.

[0288] As one example, "the second power value depends on whether the IoT access process triggered by the first PRDCH is an initial IoT access process" includes: the second power value corresponds to whether the IoT access process triggered by the first PRDCH is an initial IoT access process and whether the IoT access process triggered by the first PRDCH is a non-initial IoT access process.

[0289] As one embodiment, "the second power value depends on whether the IoT access process triggered by the first PRDCH is an initial IoT access process" includes: when the IoT access process triggered by the first PRDCH is an initial IoT access process, the second power value is one value; when the IoT access process triggered by the first PRDCH is not an initial IoT access process, the second power value is another value.

[0290] As one embodiment, "the second power value depends on whether the IoT access procedure triggered by the first PRDCH is an initial IoT access procedure" includes: when the IoT access procedure triggered by the first PRDCH is an initial IoT access procedure, calculating the power offset P of the second power value. offset The value is 0 when the IoT access procedure triggered by the first PRDCH is a non-initial IoT access procedure. offset Not zero.

[0291] As an example, "the second power value depends on whether the IoT access process triggered by the first PRDCH is an initial IoT access process" includes: the IoT access process triggered by the first PRDCH being an initial IoT access process and the IoT access process triggered by the first PRDCH being a non-initial IoT access process correspond to different first parameter values, and the first parameter values ​​are used to calculate the second power value.

[0292] As one example, "the second power value depends on whether the IoT access process triggered by the first PRDCH is an initial IoT access process" includes: the first information block configures different second power values ​​for initial IoT access processes and non-initial IoT access processes.

[0293] As one embodiment, "the second power value depends on whether the IoT access process triggered by the first PRDCH is an initial IoT access process" includes: the first information block configures at least one power parameter for calculating the second power value differently for initial IoT access processes and non-initial IoT access processes.

[0294] As one example, "the second power value depends on whether the IoT access process triggered by the first PRDCH is an initial IoT access process" includes: the first information block configures different target power value parameters P0 for calculating the second power value for initial IoT access processes and non-initial IoT access processes.

[0295] As one embodiment, "the second power value depends on whether the IoT access process triggered by the first PRDCH is the initial IoT access process" includes: a first counter is a counter for the number of IoT access processes, when the value of the first counter is 1, the second power value is one value; when the value of the first counter is greater than 1, the second power value is another value.

[0296] As one embodiment, "the second power value depends on whether the IoT access procedure triggered by the first PRDCH is an initial IoT access procedure" includes: the second power value is P PRDCH (i), Where P O The P0 value indicated by the first information block. 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, α is the path loss compensation factor, and PL is the path loss; at least one of the above parameters depends on whether the IoT access process triggered by the first PRDCH is the initial IoT access process.

[0297] As one embodiment, "the second power value depends on whether the IoT access procedure triggered by the first PRDCH is an initial IoT access procedure" includes: the second power value is P PRDCH (i) When the IoT access procedure triggered by the first PRDCH is the initial IoT access procedure, P PRDCH (i)=P O +PL dBm; When the IoT access procedure triggered by the first PRDCH is a non-initial IoT access procedure, P PRDCH (i)=P O +P offset +PL dBm; where P O For the target power, PL is the compensation amount for path loss, P offset This represents the power offset.

[0298] As one embodiment, "the second power value depends on whether the IoT access procedure triggered by the first PRDCH is an initial IoT access procedure" includes: the second power value is P PRDCH (i), P PRDCH (i)=P O +PL dBm, where P O The P0 value is indicated by the first information block, and PL is the compensation amount for path loss. O It depends on whether the IoT access process triggered by the first PRDCH is the initial IoT access process.

[0299] As one embodiment, "the second power value depends on whether the IoT access procedure triggered by the first PRDCH is an initial IoT access procedure" includes: when the IoT access procedure triggered by the first PRDCH is not an initial IoT access procedure, the second power value P PRDCH (i)=P CMAX,f,c (i) When the IoT access process triggered by the first PRDCH is the initial IoT access process, the second power value P PRDCH (i)=P O +X dBm, where P OX is the target power value, which includes at least one of the following: a compensation amount for path loss and an amount related to the bandwidth of the first PRDCH.

[0300] Example 2

[0301] Example 2 illustrates a schematic diagram of a network architecture according to this application, as shown in Figure 2. Figure 2 illustrates a network architecture 200 for 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 may 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 / SMF 214, S-GW (Service Gateway) / UPF (User Plane Function) 212, and P-GW (Packet Data Network Gateway) / UPF 213. 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.

[0302] As an example, the UE201 corresponds to the device of the terminal described in this application.

[0303] As an example, the UE201 supports OOK.

[0304] As an example, Device241 corresponds to the IoT device described in this application.

[0305] Example 3

[0306] Example 3 illustrates a schematic diagram of the wireless protocol architecture for the user plane and control plane according to an embodiment of this application, as shown in Figure 3. Figure 3 is a schematic diagram illustrating an embodiment of the radio protocol architecture for the user plane 350 and control plane 300. Figure 3 shows the radio protocol architecture for the control plane 300 for terminals, base stations, and IoT devices using three layers: Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (Physical Layer) signal processing functions. The L1 layer will be referred to herein as PHY 301. Layer 2 (L2 layer) 305 is above PHY 301 and is responsible for the link between the terminal and the base station via PHY 301. L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the base station or IoT device. 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-cell mobility support between base stations and between IoT devices. RLC sublayer 303 provides upper-layer data packet segmentation and reassembly, retransmission of lost data packets, and data packet reordering to compensate for out-of-order reception due to HARQ. MAC sublayer 302 provides multiplexing between 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 base stations and 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 data packets to reduce radio transmission overhead.The L2 layer 355 in the user plane 350 also includes an SDAP (Service Data Adaptation Protocol) sublayer 356. The 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., a remote UE, server, etc.).

[0307] As an example, the wireless protocol architecture in Figure 3 is applicable to the terminal described in this application.

[0308] As an example, the wireless protocol architecture in Figure 3 is applicable to the IoT device described in this application.

[0309] As an example, the first information block in this application is generated in RRC306, or MAC302, or MAC352, or PHY301, or PHY351.

[0310] As an example, the first PRDCH in this application is generated in MAC302, or MAC352, or PHY301, or PHY351.

[0311] As an example, the first PDRCH in this application is generated in MAC302, or MAC352, or PHY301, or PHY351.

[0312] Example 4

[0313] 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 Figure 4.

[0314] 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.

[0315] 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.

[0316] 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.

[0317] 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.

[0318] 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, 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; 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 depends on the power level of the sender of the first PRDCH, the first transmit power value is equal to the smaller value between a first power value and a second power value, the first power value depends on downlink path loss, and the second power value depends on whether the IoT access process triggered by the first PRDCH is an initial IoT access process.

[0319] 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: receiving a first information block; transmitting a first PRDCH; configuring the first PRDCH with the first information block; and using OOK on 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 being equal to the smaller of a first power value and a second power value, the first power value depending on downlink path loss, and the second power value depending on whether the IoT access process triggered by the first PRDCH is an initial IoT access process.

[0320] 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 using OOK; 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 is equal to the smaller of a first power value and a second power value, the first power value depending on downlink path loss, and the second power value depending on whether the IoT access procedure triggered by the first PRDCH is an initial IoT access procedure.

[0321] 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; 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 being equal to the smaller of a first power value and a second power value, the first power value depending on downlink path loss, and the second power value depending on whether the IoT access procedure triggered by the first PRDCH is an initial IoT access procedure.

[0322] As an example, the terminal 410 is a user equipment (UE).

[0323] As an example, the IoT device 450 is an environmental IoT device.

[0324] As an example, the Internet of Things device 450 is an RFID device.

[0325] 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.

[0326] 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.

[0327] 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.

[0328] 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.

[0329] 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.

[0330] Example 5

[0331] Example 5 illustrates a flowchart of a terminal and an IoT device transmission according to an embodiment of this application, as shown in Figure 5. In Figure 5, terminal U550 is a 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 order of implementation in this application.

[0332] For IoT device D500, the first PRDCH is received in step S501 and the first PDRCH is sent in step S502;

[0333] For terminal U550, the first information block is received in step S551, the first PRDCH is sent in step S552, and the first PDRCH is received in step S553.

[0334] In Embodiment 5, the first information block configures the first PRDCH; the first PRDCH uses OOK; wherein, 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 is equal to the smaller value between 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 whether the IoT access procedure triggered by the first PRDCH is an initial IoT access procedure. The first PDRCH is a response to the first PRDCH; wherein, the first PDRCH carries a first device identifier, and the first PRDCH carries at least the first device identifier.

[0335] Example 6

[0336] Example 6 illustrates a schematic diagram of the relationship between the first PRDCH and the second power value according to an embodiment of this application, as shown in Figure 6. In Figure 6, when the first PRDCH triggers a non-initial IoT access process, the second power value is equal to the maximum output power value; when the first PRDCH triggers an initial IoT access process, the second power value depends on the configuration of the first information block.

[0337] In Example 6, when the IoT access process triggered by the first PRDCH is a non-initial IoT access process, the second power value is equal to the maximum output power value; when the IoT access process triggered by the first PRDCH is an initial IoT access process, the second power value depends on the configuration of the first information block.

[0338] As an example, when the first PRDCH triggers a non-initial random access procedure, the maximum output power of the terminal is used, which improves the efficiency of paging for IoT devices, increases the coverage area of ​​the reader device, and is compatible with existing standards.

[0339] As one embodiment, "the second power value is equal to the maximum output power value" includes: the second power value and the maximum output power value are equal.

[0340] As one embodiment, "the second power value is equal to the maximum output power value" includes: the second power value is P PRDCH (i), P PRDCH (i)=P CMAX .

[0341] As one embodiment, "the second power value is equal to the maximum output power value" includes: the second power value is PPRDCH (i), P PRDCH (i)=P CMAX,f,c (i).

[0342] As one embodiment, "the second power value depends on the configuration of the first information block" includes: the second power value is related to the configuration of the first information block.

[0343] As one embodiment, "the second power value depends on the configuration of the first information block" includes: the configuration of the first information block is used to determine the second power value.

[0344] As one embodiment, "the second power value depends on the configuration of the first information block" includes: the configuration of the first information block is used by the terminal in this application to determine the second power value.

[0345] As one embodiment, "the second power value depends on the configuration of the first information block" includes: at least one parameter for calculating the second power value depends on the configuration of the first information block.

[0346] As one embodiment, "the second power value depends on the configuration of the first information block" includes: the first information block directly configures the second power value.

[0347] As one embodiment, "the second power value depends on the configuration of the first information block" includes: calculating that the P0 value of the second power value is configured by the first information block.

[0348] As one embodiment, "the second power value depends on the configuration of the first information block" includes: the path loss compensation factor for calculating the second power value is configured in the first information block.

[0349] As one embodiment, "the second power value depends on the configuration of the first information block" includes: the path loss compensation for calculating the second power value is configured in the first information block.

[0350] As one embodiment, "the second power value depends on the configuration of the first information block" includes: calculating the power offset value of the second power value as configured by the first information block.

[0351] As one embodiment, "the second power value depends on the configuration of the first information block" includes: the second power value is P PRDCH (i), Where P O The P0 value indicated by the first information block. denoted as the number of resource blocks (RBs) occupied by the first PRDCH during transmission time i, μ represents the subcarrier spacing of the subcarriers included in the first PRDCH in the frequency domain, α is the path loss compensation factor, and PL is the path loss.

[0352] As one embodiment, "the second power value depends on the configuration of the first information block" includes: the second power value is P PRDCH (i), P PRDCH (i)=P O +α·PL dBm, where P O P0 is the value indicated by the first information block, α is the path loss compensation factor, and PL is the path loss.

[0353] As one embodiment, "the second power value depends on the configuration of the first information block" includes: the second power value is P PRDCH (i), P PRDCH (i)=P O +X dBm, where P O P0 is the value indicated by the high-level parameter, X is the path loss compensation value, and P O At least one of these two, X, is configured in the first information block.

[0354] Example 7

[0355] Example 7 illustrates a schematic diagram of the relationship between a third power value and the device type of the receiver of the first PRDCH according to one embodiment of this application, as shown in Figure 7. In Figure 7, arrows indicate dependencies, and the third power value depends on the device type of the receiver of the first PRDCH.

[0356] In Example 7, the second power value is linearly related to the third power value, which depends on the device type of the receiver of the first PRDCH, including at least one of type 1, type 2a, and type 2b.

[0357] As an example, considering the different sensitivities of different types of devices, different transmission powers are set according to different device types, which simplifies the design and reduces the complexity of implementation.

[0358] As an example, the unit of the third power value is dBm (millidecibels).

[0359] As an example, the unit of the third power value is watts or milliwatts.

[0360] As an example, the third power value is a power parameter used to calculate the second power value.

[0361] As an example, the third power value is the value of P0.

[0362] As an example, the third power value is the target received power value of the IoT device in this application.

[0363] As an example, the third power value is the assumed transmit power value of the terminal in this application.

[0364] As an example, the third power value is the target transmit power value of the terminal in this application.

[0365] As an example, the third power value is a power offset value calculated from the second power value.

[0366] As an example, the third power value is the power value for path loss compensation.

[0367] As one embodiment, the third power value is the same as the second power value. As a supplementary embodiment, this approach offers the advantage of simple design.

[0368] As one embodiment, "the second power value is linearly correlated with the third power value" includes: the second power value is linearly correlated with the logarithm of the third power value.

[0369] As one embodiment, "the second power value is linearly related to the third power value" includes: the second power value is equal to the third power value.

[0370] As one embodiment, "the second power value is linearly correlated with the third power value" includes: the third power value is used to calculate the second power value P. PRDCH One of the parameters of (i).

[0371] As one embodiment, "the second power value is linearly correlated with the third power value" includes: the third power value is P used to calculate the second power value. O The value of .

[0372] As one embodiment, "the second power value is linearly correlated with the third power value" includes: the third power value is P used to calculate the second power value. O The value of .

[0373] As one embodiment, "the second power value is linearly correlated with the third power value" includes: the third power value is the product α·PL of the path loss compensation factor for calculating the second power value and the path loss.

[0374] As one embodiment, "the second power value is linearly correlated with the third power value" includes: the third power value is the power offset value P used to calculate the second power value. offset .

[0375] As one embodiment, "the second power value is linearly correlated with the third power value" includes: the second power value is P PRDCH (i), P O The P0 value is the power control parameter indicated by the higher-level parameters. The first PRDCH is the number of resource blocks (RBs) occupied by the first PRDCH during transmission time i, μ represents the subcarrier spacing of the subcarriers included in the first PRDCH in the frequency domain, α is the path loss compensation factor, PL is the path loss, and the third power value is the calculated P above. PRDCH One of the parameters of (i).

[0376] As one embodiment, "the second power value is linearly correlated with the third power value" includes: the second power value is P PRDCH (i),P PRDCH (i)=P O +α·PL dBm,P O The third power value is P0, which is the power control value indicated by the high-level parameter, α is the road loss compensation factor, PL is the path loss, and P is the third power value. O Or α·PL.

[0377] As one embodiment, "the second power value is linearly correlated with the third power value" includes: the second power value is P PRDCH (i),P PRDCH (i)=P O +P offset P O The P0 value for power control is indicated by the high-level parameter. offset This is the third power value.

[0378] As an example, the recipient of the first PRDCH is the IoT device described in this application.

[0379] As one embodiment, "the third power value depends on the device type of the receiver of the first PRDCH" includes: the third power value is related to the device type of the receiver of the first PRDCH.

[0380] As one embodiment, "the third power value depends on the device type of the receiver of the first PRDCH" includes: the device type of the receiver of the first PRDCH is used to determine the third power value.

[0381] As one embodiment, "the third power value depends on the device type of the receiver of the first PRDCH" includes: the device type of the receiver of the first PRDCH is used by the terminal in this application to determine the third power value.

[0382] As one embodiment, "the third power value depends on the device type of the receiver of the first PRDCH" includes: the third power value is per device type.

[0383] As one embodiment, "the third power value depends on the device type of the receiver of the first PRDCH" includes: the third power value is configured separately for each device type of the receiver of the first PRDCH.

[0384] As an example, "the third power value depends on the device type of the receiver of the first PRDCH" includes: the third power value has a one-to-one correspondence or one-to-one mapping relationship with the device type of the receiver of the first PRDCH.

[0385] As an example, "the third power value depends on the device type of the receiver of the first PRDCH" includes: the third power value has a correspondence with the device type of the receiver of the first PRDCH according to a predefined table.

[0386] As one embodiment, "the third power value depends on the device type of the receiver of the first PRDCH" includes: the first information block in this application configures the third power value for different device types of the receivers of the first PRDCH.

[0387] As an example, "the third power value depends on the device type of the receiver of the first PRDCH" includes: when the device type of the receiver of the first PRDCH is type 1, type 2a and type 2b respectively, the third power value corresponds to different values.

[0388] As an example, "the third power value depends on the device type of the receiver of the first PRDCH" includes: when the device type of the receiver of the first PRDCH is type 1, the third power value is one value; when the device type of the receiver of the first PRDCH is type 2a or type 2b, the third power value is another value.

[0389] As an example, "the third power value depends on the device type of the receiver of the first PRDCH" includes: when the device type of the receiver of the first PRDCH is type 1 or type 2a, the third power value is one value; when the device type of the receiver of the first PRDCH is type 2b, the third power value is another value.

[0390] 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.

[0391] 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.

[0392] 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.

[0393] As an example, the device type of the receiver of the first PRDCH is classified according to the complexity of the device.

[0394] As an example, the device type of the receiver of the first PRDCH is determined based on the device's capabilities.

[0395] As an example, the device type of the receiver of the first PRDCH is determined based on whether it has a power amplifier.

[0396] 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.

[0397] As an example, the device type of the receiver of the first PRDCH is determined based on the device receiver sensitivity.

[0398] 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.

[0399] As an example, the device type of the receiver of the first PRDCH depends on the indication of the core network.

[0400] As an example, the device type of the receiver of the first PRDCH depends on the signaling indication of the core network device.

[0401] As an example, the device type of the receiver of the first PRDCH is indicated by the core network.

[0402] As an example, the core network indicates the device type of the receiver of the first PRDCH that the terminal wants to communicate with.

[0403] As an example, the core network indicates the device type of the receiver of the first PRDCH based on the currently provided services.

[0404] 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.

[0405] As an example, the device type of the receiver of the first PRDCH is indicated by NAS.

[0406] As an example, the device type of the receiver of the first PRDCH is indicated by NAS.

[0407] 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.

[0408] As an example, type 1 is A-IoT device 1 as defined in 3GPP TR38.769.

[0409] As an example, type 2a is A-IoT device 2a as defined in 3GPP TR38.769.

[0410] As an example, type 2b is A-IoT device 2b as defined in 3GPP TR38.769.

[0411] 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.

[0412] 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. X A-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.

[0413] 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.

[0414] Example 8

[0415] Example 8 illustrates a schematic diagram of an OOK time unit according to an embodiment of this application, as shown in Figure 8. In Figure 8, the horizontal axis represents time, and the numbers above represent linearly encoded bits, with each linearly encoded bit corresponding to one OOK time unit.

[0416] In Example 8, at least one of the maximum output power value and the second power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0417] 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.

[0418] As one embodiment, the OOK time unit includes an OOK chip.

[0419] As one example, the OOK time unit includes half of the OOK chip.

[0420] As an example, the OOK time unit is a continuous time.

[0421] 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.

[0422] As one embodiment, the OOK time unit includes: the duration of a high level or the duration of a low level.

[0423] As an example, the OOK time unit includes: the shortest duration of a high level or a low level.

[0424] As one embodiment, the OOK time unit includes: the shortest duration of a high-level envelope or a low-level envelope.

[0425] As one embodiment, the OOK time unit includes twice the shortest duration of either a high level or a low level.

[0426] As an example, the OOK time unit includes: one time unit occupied by one bit after linear encoding.

[0427] As one embodiment, the OOK time unit includes the duration of a high-level envelope or a low-level envelope.

[0428] As an example, the OOK time unit includes: the time unit mapped to one bit after linear encoding.

[0429] As an example, the OOK time unit includes: the time unit mapped to a bit that has not undergone linear encoding or Manchester encoding.

[0430] As an example, the OOK time unit includes: the time length corresponding to or mapped to one OOK bit.

[0431] As an example, the OOK time unit includes half the time length corresponding to one OOK bit.

[0432] As an example, the OOK time unit includes the duration of "01" or "10" in Manchester encoding.

[0433] As an example, the OOK time unit includes the duration of a "1" or "0" in Manchester encoding.

[0434] 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.

[0435] As one embodiment, the OOK time unit includes the minimum duration of a high level or a low level in Manchester encoding.

[0436] As an example, the OOK time unit includes: the duration of a bit after Manchester encoding, or a high level, or a low level.

[0437] As an example, the OOK time unit includes the CP (Cyclic Prefix) of the OFDM symbol.

[0438] As an example, the OOK time unit does not include the CP (Cyclic Prefix) of the OFDM symbol.

[0439] As an example, "at least one of the maximum output power value and the second 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 second 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.

[0440] As one embodiment, "at least one of the maximum output power value and the second 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 second power value.

[0441] As an example, "at least one of the maximum output power value and the second 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 second power value depend on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0442] As an example, "at least one of the maximum output power value and the second 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 second power value depends on the number of bits carried in one OFDM symbol occupied by the first PRDCH in the time domain.

[0443] As an example, "at least one of the maximum output power value and the second 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 second power value depends on the number of information bits carried in one OFDM symbol occupied by the first PRDCH in the time domain.

[0444] As an example, "at least one of the maximum output power value and the second 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 second power value depends on the number of Manchester-coded bits carried in one OFDM symbol occupied by the first PRDCH in the time domain.

[0445] As an example, "at least one of the maximum output power value and the second 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 second 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.

[0446] As one embodiment, "at least one of the maximum output power value and the second 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.

[0447] As one embodiment, "at least one of the maximum output power value and the second 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 second power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0448] As one embodiment, "at least one of the maximum output power value and the second 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.

[0449] As one embodiment, "at least one of the maximum output power value and the second 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 second power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0450] As an example, "at least one of the maximum output power value and the second 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.

[0451] As an example, "at least one of the maximum output power value and the second 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 second power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0452] As one embodiment, "at least one of the maximum output power value and the second 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 second power value depends on the frequency domain bandwidth of the first PRDCH, the frequency bandwidth of the first PRDCH being related to the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0453] As one embodiment, "at least one of the maximum output power value and the second power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: the MPR (maximum power reduction) value for the 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, thus ensuring transmission efficiency.

[0454] As one embodiment, "at least one of the maximum output power value and the second 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.

[0455] As one embodiment, "at least one of the maximum output power value and the second 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.

[0456] As one embodiment, "at least one of the maximum output power value and the second 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 to 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.

[0457] As one embodiment, "at least one of the maximum output power value and the second power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: ΔT for the maximum output power value C,c 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 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.

[0458] As an example, "at least one of the maximum output power value and the second power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain" includes: ΔP for the 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, ΔP... 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.

[0459] As an example, "at least one of the maximum output power value and the second 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.

[0460] As an example, "at least one of the maximum output power value and the second 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.

[0461] As an example, "at least one of the maximum output power value and the second 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.

[0462] As an example, "at least one of the maximum output power value and the second 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 second power value or a parameter of the second 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.

[0463] As an example, "at least one of the maximum output power value and the second 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 second power value or a parameter of the second 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.

[0464] As an example, "at least one of the maximum output power value and the second 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 second power value or the value of a parameter for the second 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.

[0465] As one embodiment, "at least one of the maximum output power value and the second 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 second 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.

[0466] As one embodiment, "at least one of the maximum output power value and the second 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:

[0467] 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.

[0468] Example 9

[0469] Example 9 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 Figure 9. In Figure 9, the horizontal axis represents time, 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 a response to the first PRDCH, and the first PDRCH carries a first device identifier.

[0470] In Embodiment 9, the first PDRCH in this application is a response to the first PRDCH; wherein, the first PDRCH carries a first device identifier, the first device identifier is the identifier of the receiver of the first PRDCH, and the first PRDCH carries at least the first device identifier.

[0471] As an example, the first PRDCH carries the first device identifier as a paging message. In response to the first PRDCH, the first PDRCH also carries the first device identifier to prevent non-target IoT devices from receiving the first PRDCH and responding, thereby enhancing the robustness of the system.

[0472] As an example, the first PDRCH is a baseband signal or radio frequency signal of the PDRCH (Physical Device to Reader Channel).

[0473] As an example, the first PDRCH includes a reference signal.

[0474] As an example, the first PDRCH does not include a reference signal.

[0475] As an example, the first PDRCH includes a preamble.

[0476] As an example, the first PDRCH does not include a preamble.

[0477] As one example, the first PDRCH is transmitted from the IoT device to the reader.

[0478] As an example, the first PDRCH carries physical layer control information.

[0479] As an example, the first PDRCH does not carry physical layer control information.

[0480] As an example, the first PDRCH carries control information only from higher layers.

[0481] As an example, the first PDRCH carries all or part of the bits in a TB (transport block).

[0482] As an example, all or part of the bits in a TB are used to generate the first PDRCH.

[0483] As an example, the first PDRCH carries Msg1.

[0484] As an example, the first PDRCH carries information for the IoT access process in this application.

[0485] As an example, the first PDRCH is a signal that includes only high and low levels.

[0486] As an example, the first PDRCH uses OOK.

[0487] As an example, the first PDRCH uses BPSK.

[0488] As an example, the first PDRCH uses MSK.

[0489] As an example, the sender of the first PDRCH is the IoT device described in this application.

[0490] As an example, the sender of the first PDRCH is also the receiver of the first PDRCH.

[0491] 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.

[0492] As an example, "the first PDRCH is a response to the first PRDCH" includes: the first PRDCH triggers the transmission of the first PDRCH.

[0493] As an example, "the first PDRCH is a response to the first PRDCH" includes: the first PRDCH and the first PDRCH are associated.

[0494] 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.

[0495] 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.

[0496] 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.

[0497] As one embodiment, "the first PDRCH carries a first device identifier" includes: the first PDRCH carries at least the first device identifier.

[0498] As one embodiment, "the first PDRCH carries the first device identifier" includes: the first PDRCH carries only the first device identifier.

[0499] As one embodiment, "the first PDRCH carries a first device identifier" includes: the TB carried by the first PDRCH includes the first device identifier.

[0500] As one embodiment, "the first PDRCH carries a first device identifier" includes: the first device identifier is used to generate the first PDRCH.

[0501] As one embodiment, "the first PDRCH carrying the first device identifier" includes: the first device identifier is mapped to the first PDRCH.

[0502] As one embodiment, "the first PDRCH carrying the first device identifier" includes: the first device identifier is mapped to the time domain resources occupied by the first PDRCH.

[0503] As an example, the first device identifier is an identifier configured by a higher layer.

[0504] As an example, the first device identifier is a unique identifier of the recipient of the first PRDCH.

[0505] As an example, the first device identifier is a unique physical identifier of the recipient of the first PRDCH.

[0506] As an example, the first device identifier is an identifier that comes with the recipient of the first PRDCH at the factory.

[0507] As an example, the first device identifier is the device ID (Identification) of the receiver of the first PRDCH.

[0508] As one embodiment, "the first PRDCH carries at least the first device identifier" includes: the first PRDCH carries only the first device identifier.

[0509] As one embodiment, "the first PRDCH carries at least the first device identifier" includes: the first PRDCH carries multiple device identifiers, and the first device identifier is one of the multiple device identifiers.

[0510] As one embodiment, "the first PRDCH carries at least the first device identifier" includes: the first PRDCH carries a group identifier, and the first device identifier corresponds to the group identifier.

[0511] As one embodiment, "the first PRDCH carries at least the first device identifier" includes: the first PRDCH carries a group identifier, to which the first device identifier belongs.

[0512] As one embodiment, "the first PRDCH carries at least the first device identifier" includes: the first device identifier is used to generate the first PRDCH.

[0513] As one embodiment, "the first PRDCH carries at least the first device identifier" includes: the TB carried by the first PRDCH includes the first device identifier.

[0514] As one embodiment, "the first PRDCH carries at least the first device identifier" includes: the first device identifier is used to generate control information for L1 (layer 1) included in the first PRDCH.

[0515] As one embodiment, "the first PRDCH carries at least the first device identifier" includes: the first device identifier is used to generate the TB carried by the first PRDCH.

[0516] As one embodiment, "the first PRDCH carries at least the first device identifier" includes: the first device identifier is mapped to the time domain resources occupied by the first PRDCH.

[0517] Example 10

[0518] Example 10 illustrates a schematic diagram of a first PRDCH carrying L1 control information according to an embodiment of this application, as shown in Figure 10. In Figure 10, the horizontal axis represents time, the rectangle enclosed by the thick solid line represents the first PRDCH, and the cross-filled rectangle represents the time-domain resource mapped by the L1 control information.

[0519] In Example 10, the second power value is linearly related to the fourth power value, which depends on whether the first PRDCH carries L1 control information.

[0520] As an example, considering that the target BLER (block error rate) of data information and control information may be different, the transmit power of the first PRDCH is determined according to whether the first PRDCH carries L1 control information, thus ensuring the reliability of the transmission of control information.

[0521] As one embodiment, the fourth power value and the third power value in this application are two different parameters used to calculate the second power value. As a supplementary embodiment, this approach offers the advantage of greater flexibility.

[0522] As one embodiment, the fourth power value is the same parameter as the third power value in this application. As a supplementary embodiment, this approach offers the advantage of design simplicity.

[0523] As an example, the unit of the fourth power value is dBm (millidecibels).

[0524] As an example, the unit of the fourth power value is watts or milliwatts.

[0525] As an example, the fourth power value is a power parameter used to calculate the second power value.

[0526] As an example, the fourth power value is the value of P0.

[0527] As an example, the fourth power value is the target received power value of the IoT device in this application.

[0528] As an example, the fourth power value is the assumed transmit power value of the terminal in this application.

[0529] As an example, the fourth power value is the target transmit power value of the terminal in this application.

[0530] As an example, the fourth power value is a power offset value calculated from the second power value.

[0531] As an example, the fourth power value is the power value for path loss compensation.

[0532] As one embodiment, the fourth power value is the same as the second power value. As a supplementary embodiment, this approach offers the advantage of simple design.

[0533] As one example, "the second power value is linearly correlated with the fourth power value" includes: the second power value is linearly correlated with the logarithm of the fourth power value.

[0534] As one example, "the second power value is linearly related to the fourth power value" includes: the second power value is equal to the fourth power value.

[0535] As one embodiment, "the second power value is linearly correlated with the fourth power value" includes: the fourth power value is used to calculate the second power value P. PRDCH One of the parameters of (i).

[0536] As one embodiment, "the second power value is linearly correlated with the fourth power value" includes: the fourth power value is P used to calculate the second power value. O The value of .

[0537] As one embodiment, "the second power value is linearly correlated with the fourth power value" includes: the fourth power value is P used to calculate the second power value. O The value of .

[0538] As one embodiment, "the second power value is linearly correlated with the fourth power value" includes: the fourth power value is the product α·PL of the path loss compensation factor for calculating the second power value and the path loss.

[0539] As one embodiment, "the second power value is linearly correlated with the fourth power value" includes: the fourth power value is the power offset value P used to calculate the second power value. offset .

[0540] As one embodiment, "the second power value is linearly correlated with the fourth power value" includes: the second power value is P PRDCH (i), P O The P0 value is the power control parameter indicated by the higher-level parameters. The first PRDCH is the number of resource blocks (RBs) occupied by the first PRDCH during transmission time i, μ represents the subcarrier spacing of the subcarriers included in the first PRDCH in the frequency domain, α is the path loss compensation factor, PL is the path loss, and the fourth power value is the calculated P above. PRDCH One of the parameters of (i).

[0541] As one embodiment, "the second power value is linearly correlated with the fourth power value" includes: the second power value is P PRDCH (i),P PRDCH (i)=P O +α·PL dBm,P O The fourth power value is P0, which is the power control value indicated by the high-level parameter, α is the road loss compensation factor, PL is the path loss, and P is the fourth power value. O Or α·PL.

[0542] As one embodiment, "the second power value is linearly correlated with the fourth power value" includes: the second power value is P PRDCH (i),P PRDCH (i)=P O +P offset P O The P0 value for power control is indicated by the high-level parameter.offset This is the fourth power value.

[0543] As an example, the L1 control information is the control information of layer 1 (L1).

[0544] As an example, the L1 control information is physical layer control information.

[0545] As an example, the L1 control information includes at least one L1 control information bit.

[0546] As one embodiment, the first PRDCH carrying L1 control information includes: the first PRDCH carrying at least one L1 control information bit.

[0547] As one embodiment, the first PRDCH carrying L1 control information includes: the first PRDCH carrying physical layer control information.

[0548] As an example, the first PRDCH carrying L1 control information includes: at least one L1 control information bit is used to generate the first PRDCH.

[0549] As one embodiment, the first PRDCH carrying L1 control information includes: at least one L1 control information bit being mapped to the first PRDCH.

[0550] As an example, the first PRDCH carrying L1 control information includes: at least one L1 control information bit being mapped to the time domain resources occupied by the first PRDCH.

[0551] As an example, when the first PRDCH carries L1 control information, the time-domain resources mapped by the L1 control information bits carried by the first PRDCH are earlier than the time-domain resources mapped by the data information bits carried by the first PRDCH.

[0552] As an example, the first PRDCH not carrying L1 control information includes: the first PRDCH carrying only one TB (transport block).

[0553] As one embodiment, the first PRDCH not carrying L1 control information includes: the first PRDCH only carrying higher-level control information.

[0554] As an example, the first PRDCH not carrying L1 control information includes: the first PRDCH only carrying data information bits.

[0555] As one embodiment, "the fourth power value depends on whether the first PRDCH carries L1 control information" includes: the fourth power value is related to whether the first PRDCH carries L1 control information.

[0556] As one embodiment, "the fourth power value depends on whether the first PRDCH carries L1 control information" includes: whether the first PRDCH carries L1 control information is used to determine the fourth power value.

[0557] As one embodiment, "the fourth power value depends on whether the first PRDCH carries L1 control information" includes: whether the first PRDCH carries L1 control information is used by the terminal in this application to determine the fourth power value.

[0558] As an example, "the fourth power value depends on whether the first PRDCH carries L1 control information" includes: whether the first PRDCH carries L1 control information and the fourth power value have a corresponding relationship or mapping relationship.

[0559] As one embodiment, "the fourth power value depends on whether the first PRDCH carries L1 control information" includes: the first information block in this application configures the fourth power value for the first PRDCH carrying L1 control information and the first PRDCH not carrying L1 control information respectively.

[0560] As one embodiment, "the fourth power value depends on whether the first PRDCH carries L1 control information" includes: when the first PRDCH carries L1 control information, the fourth power value is one value; when the first PRDCH does not carry L1 control information, the fourth power value is another value.

[0561] As one embodiment, "the fourth power value depends on whether the first PRDCH carries L1 control information" includes: when the first PRDCH does not carry L1 control information, the fourth power value is a first value; when the first PRDCH carries L1 control information, the fourth power value is the sum of the first value and an offset value.

[0562] Example 11

[0563] Example 11 illustrates a schematic diagram of the relationship between control sub-signals and data sub-signals according to an embodiment of this application, as shown in Figure 11. In Figure 11, the horizontal axis represents time, a rectangle represents an OFDM symbol, the length of the crosshair represents a first time interval, the first PRDCH includes control sub-signals and data sub-signals, and the time-domain interval length between the control sub-signals and data sub-signals is equal to or greater than the minimum number of OFDM symbols of the first time interval.

[0564] In embodiment 11, the first PRDCH includes a control sub-signal and a data sub-signal. The control sub-signal carries control information bits, and the data sub-signal carries data information bits. The time-domain interval length between the control sub-signal and the data sub-signal is equal to or greater than the minimum number of OFDM symbols of a first time interval. The first time interval is equal to an absolute time or equal to multiple OOK time units.

[0565] As an example, considering the impact of processing latency of IoT devices or terminal devices or latency of configuration changes of IoT devices, one absolute time or multiple OOK time units are used to separate control sub-signals and data sub-signals, which reduces the complexity of implementation, while ensuring that the terminal is aligned with the existing OFDM symbol boundary when sending data sub-signals, thus being compatible with the existing communication architecture and improving transmission performance.

[0566] As one embodiment, "the first PRDCH includes a control sub-signal and a data sub-signal" means that the first PRDCH is divided into the control sub-signal and the data sub-signal.

[0567] As one embodiment, "the first PRDCH includes a control sub-signal and a data sub-signal" means that the two time-domain parts of the first PRDCH are the control sub-signal and the data sub-signal, respectively.

[0568] As one embodiment, "the first PRDCH includes control sub-signals and data sub-signals" means that the control information bits and the data information bits are respectively mapped to two parts of the first PRDCH.

[0569] As one embodiment, "the first PRDCH includes control sub-signals and data sub-signals" means that both the control information bits and the data information bits are mapped onto the first PRDCH.

[0570] As one embodiment, "the first PRDCH includes control sub-signals and data sub-signals" means that both the control sub-signals and the data sub-signals belong to the first PRDCH.

[0571] As one embodiment, "the first PRDCH includes a control sub-signal and a data sub-signal" means that the first PRDCH is composed of the control sub-signal and the data sub-signal.

[0572] As one embodiment, "the first PRDCH includes control sub-signals and data sub-signals" means that the control sub-signals and the data sub-signals are two parts of the first PRDCH.

[0573] As one embodiment, "the first PRDCH includes control sub-signals and data sub-signals" means that the control sub-signals and the data sub-signals constitute the first PRDCH.

[0574] As one embodiment, "the first PRDCH includes a control sub-signal and a data sub-signal" means that the control sub-signal and the data sub-signal belong to the same physical channel. As a supplementary embodiment, the control sub-signal and the data sub-signal belonging to the same physical channel has the advantage of simplifying the design.

[0575] As one embodiment, "the first PRDCH includes control sub-signals and data sub-signals" means that both the control sub-signals and the data sub-signals belong to the PRDCH (Physical Reader to Device Channel).

[0576] As one embodiment, "the first PRDCH includes control sub-signals and data sub-signals" means that both the control sub-signals and the data sub-signals are transmitted on the PRDCH (Physical Reader to Device Channel).

[0577] As one embodiment, "the first PRDCH includes a control sub-signal and a data sub-signal" means that the control sub-signal and the data sub-signal are transmitted once on the same physical channel.

[0578] As one embodiment, "the first PRDCH includes a control sub-signal and a data sub-signal" means that the control sub-signal and the data sub-signal are transmitted on the same physical channel in one transmission, and the control sub-signal and the data sub-signal carry different types of bit information.

[0579] As one embodiment, "the first PRDCH includes control sub-signals and data sub-signals" means that the OFDM symbols occupied by the first PRDCH in the time domain include the OFDM symbols occupied by the control sub-signals and the data sub-signals in the time domain.

[0580] As one embodiment, "the first PRDCH includes control sub-signals and data sub-signals" means that the time-frequency resources occupied by the control sub-signals and the data sub-signals belong to the time-frequency resources occupied by the first PRDCH.

[0581] As one embodiment, "the first PRDCH includes a control sub-signal and a data sub-signal" includes: the control sub-signal and the data sub-signal respectively carry the control information bits and the data information bits included in the first PRDCH.

[0582] As an example, the control sub-signal and the data sub-signal are discontinuous in the time domain.

[0583] As one embodiment, the control sub-signal and the data sub-signal are mapped to mutually orthogonal time-domain resources.

[0584] As an example, the control sub-signal carries physical layer control information.

[0585] As an example, the control sub-signal carries control information from higher layers.

[0586] As an example, the control sub-signal uses OOK.

[0587] As an example, the data sub-signal is a physical signal that transmits data information.

[0588] As an example, the data sub-signal carries control information from higher layers.

[0589] As an example, the data sub-signal does not carry higher-level control information.

[0590] As an example, the data sub-signal carries MAC layer information.

[0591] As an example, the data sub-signal carries a MAC CE.

[0592] As one embodiment, the data sub-signal carries all or part of the bits in a TB (transport block).

[0593] As an example, all or part of the bits in a TB are used to generate the data sub-signal.

[0594] As an example, all or part of the bits in a TB are channel-coded to generate the data sub-signal.

[0595] As an example, all or part of the bits in a TB are processed by adding CRC, linear encoding, and OOK modulation to generate the data sub-signal.

[0596] As an example, the data sub-signal is a signal that only includes high and low levels.

[0597] As an example, the data sub-signal uses OOK.

[0598] As one embodiment, "the control sub-signal carrying control information bits" includes: the control information bit resources are mapped to resources allocated for the control sub-signal.

[0599] As one embodiment, "the control sub-signal carrying control information bits" includes: at least one control information bit being used to generate the control sub-signal.

[0600] As an example, "the control sub-signal carrying control information bits" includes: at least one control information bit being generated by at least one of CRC attachment, repetition, scrambling, line coding, and OFDM-based OOK generation to generate the control sub-signal.

[0601] As one embodiment, "the control sub-signal carrying control information bits" includes: the control sub-signal is generated from control information bits.

[0602] As one embodiment, "the control sub-signal carries control information bits" includes: the control sub-signal carries at least control information bits.

[0603] As one embodiment, "the control sub-signal carries control information bits" includes: the control sub-signal carries only control information bits.

[0604] As one embodiment, "the control sub-signal carrying control information bits" includes: the control sub-signal carrying at least one control information bit.

[0605] As one embodiment, "the control sub-signal carrying control information bits" includes: the control sub-signal carrying a fixed or predefined number of control information bits.

[0606] As one embodiment, "the control sub-signal carrying control information bits" includes: the number of control information bits carried by the control sub-signal depends on the format of the control information.

[0607] As an example, the control sub-signal carries the CRC generated by the control information bits.

[0608] As an example, the control sub-signal does not carry the CRC generated by the control information bits.

[0609] As an example, each control information bit carried by the control sub-signal is a layer 1 (L1) control information bit.

[0610] As an example, each control information bit carried by the control sub-signal is a control information bit of the physical layer.

[0611] As an example, each control information bit carried by the control sub-signal carries physical layer control information.

[0612] As an example, each control bit carried by the control sub-signal is a bit in the control information payload.

[0613] As an example, each control bit carried by the control sub-signal is a bit of the control information field.

[0614] As an example, each control bit carried by the control sub-signal is a bit of scheduling information.

[0615] As an example, each control information bit carried by the control sub-signal is a bit used to carry scheduling information (or configuration information).

[0616] As an example, each control information bit carried by the control sub-signal is an RDCI (Reader to Device Control Information) bit.

[0617] As an example, at least one control information bit carried by the control sub-signal is used to schedule the data sub-signal.

[0618] As an example, at least one control information bit carried by the control sub-signal is used to indicate the duration of the data sub-signal.

[0619] As an example, at least one control information bit carried by the control sub-signal is used to indicate at least one of the following: the number of OOK time units carried by the data sub-signal, the size of the transport block carried, and the number of bits carried.

[0620] As an example, at least one control information bit carried by the control sub-signal is used to indicate at least one of the following: the number of OOK time units included in an OFDM symbol occupied by the data sub-signal in the time domain, or the length of each OOK time unit included.

[0621] As an example, at least one control information bit carried by the control sub-signal is used to indicate the scheduling information of the PRDCH.

[0622] As an example, at least one control information bit carried by the control sub-signal is used to indicate at least one of the following: the number of OOK time units included in an OFDM symbol occupied by the PRDCH in the time domain, or the length of each OOK time unit included.

[0623] As an example, at least one control information bit carried by the control sub-signal is used to indicate the number of OOK time units included in the PRDCH or the duration of the PRDCH.

[0624] As an example, at least one control information bit carried by the control sub-signal is used to indicate the number of bits contained in the PRDCH.

[0625] As an example, at least one control information bit carried by the control sub-signal is used to indicate the size of the transport block carried by the PRDCH.

[0626] As an example, at least one control information bit carried by the control sub-signal is used to schedule PDRCH.

[0627] As an example, at least one control information bit carried by the control sub-signal is used to indicate the scheduling information of the PDRCH.

[0628] As an example, at least one control information bit carried by the control sub-signal is used to indicate the duration of the PDRCH.

[0629] As an example, the number of control information bits carried by the control sub-signal is fixed.

[0630] As an example, the number of control information bits carried by the control sub-signal is predefined.

[0631] As an example, the number of control information bits carried by the control sub-signal is indicated by a preamble.

[0632] As an example, the number of control information bits carried by the control sub-signal is configured by the core network.

[0633] As an example, the number of control information bits carried by the control sub-signal is indicated by NAS (Non-Access stratum).

[0634] As an example, the control information bits carried by the control sub-signal and the data information (or TB or CB) bits carried by the data sub-signal are independently attached (or have CRC added).

[0635] As one embodiment, "the data sub-signal carrying data information bits" includes: the data sub-signal is generated from data information bits.

[0636] As one embodiment, "the data sub-signal carrying data information bits" includes: the data information bit resources are mapped to resources allocated for the data sub-signal.

[0637] As an example, "the data sub-signal carrying data information bits" includes: at least one data information bit being generated by at least one of CRC attachment, repetition, scrambling, line coding, and OFDM-based OOK generation to generate the data sub-signal.

[0638] As one embodiment, "the data sub-signal carries data information bits" includes: the data sub-signal carries at least data information bits.

[0639] As one embodiment, "the data sub-signal carries data information bits" includes: the data sub-signal carries only data information bits.

[0640] As one embodiment, "the data sub-signal carries data information bits" includes: the data sub-signal carries at least one data information bit.

[0641] As one embodiment, "the data sub-signal carrying data information bits" includes: the data sub-signal includes multiple data information bits.

[0642] As one embodiment, "the data sub-signal carrying data information bits" includes: the data sub-signal carrying a first transmission block, the first transmission block including at least one data information bit.

[0643] As one embodiment, "the data sub-signal carrying data information bits" includes: the data sub-signal carrying a first transport block, the size of which depends on at least one of the time domain resources occupied by the data sub-signal and the number of OOK time units included in each OFDM symbol occupied by the data sub-signal.

[0644] As an example, the data sub-signal carries a CRC generated by the data information bits.

[0645] As an example, the data sub-signal does not carry physical layer control information bits.

[0646] As an example, each data information bit carried by the data sub-signal is a bit in the data information payload.

[0647] As an example, the data sub-signal also carries a MAC SDU.

[0648] As an example, the number of data information bits carried by the data sub-signal has an upper limit.

[0649] As an example, the number of data information bits carried by the data sub-signal is predefined.

[0650] As an example, the number of data information bits carried by the data sub-signal is indicated by the control sub-signal.

[0651] As an example, the number of data information bits carried by the data sub-signal is configured by the core network.

[0652] As an example, the number of data information bits carried by the data sub-signal is indicated by NAS (Non-Access stratum).

[0653] As one example, the data sub-signal carries multiple data information bits.

[0654] As an example, the time-domain resources occupied by the control sub-signal and the time-domain resources occupied by the data sub-signal are orthogonal.

[0655] As an example, the control sub-signal and the data sub-signal do not overlap in the time domain.

[0656] As an example, the time-domain resources occupied by the control sub-signal and the time-domain resources occupied by the data sub-signal do not overlap.

[0657] As an example, the control sub-signal and the data sub-signal occupy different OFDM symbols.

[0658] As one embodiment, the control sub-signal and the data sub-signal are respectively mapped to different OFDM symbol sets.

[0659] As one embodiment, the control sub-signal precedes the data sub-signal in the time domain. As a supplementary embodiment, the fact that the control sub-signal precedes the data sub-signal allows for receiving control information instructions before receiving data information, providing greater flexibility and improved robustness.

[0660] As an example, "the time-domain interval length between the control sub-signal and the data sub-signal is equal to or greater than the minimum number of OFDM symbols of the first time interval" includes: the control sub-signal and the data sub-signal are discontinuous in the time domain.

[0661] As an example, "the time-domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the interval between the time-domain resources mapped by the control information bits included in the first PRDCH and the data information bits included in the first PRDCH is not less than the minimum number of OFDM symbols of the first time interval.

[0662] As one embodiment, "the time-domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the OFDM symbols occupied by the control sub-signal in the time domain form a first OFDM symbol set, the OFDM symbols occupied by the data sub-signal in the time domain form a second OFDM symbol set, and the time-domain interval length between the first OFDM symbol set and the second OFDM symbol set is the minimum number of OFDM symbols not less than the first time interval.

[0663] As an example, "the time-domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the control information bits carried by the first PRDCH are mapped to the first OFDM symbol set, the data information bits carried by the first PRDCH are mapped to the second OFDM symbol set, and the time-domain interval length between the first OFDM symbol set and the second OFDM symbol set is the minimum number of OFDM symbols not less than the first time interval.

[0664] As an example, "the time-domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the time-domain interval length between the latest OFDM symbol mapped by the control information bits included in the first PRDCH and the earliest OFDM symbol mapped by the data information bits included in the first PRDCH is equal to the minimum number of OFDM symbols not less than the first time interval.

[0665] As an example, "the time-domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the time-domain interval length between the latest OFDM symbol occupied by the control sub-signal in the time domain and the earliest OFDM symbol occupied by the data sub-signal in the time domain is not less than the minimum number of OFDM symbols of the first time interval.

[0666] As an example, "the time-domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the time-domain interval length between the start symbol of the control sub-signal and the start symbol of the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval.

[0667] As an example, "the time-domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the time-domain interval length between the start symbol of the control sub-signal and the end symbol of the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval.

[0668] As an example, "the time-domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the time-domain interval length between the cutoff symbol of the control sub-signal and the start sub-symbol of the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval.

[0669] As an example, "the time-domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the time-domain interval length between the cutoff symbol of the control sub-signal and the cutoff symbol of the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval.

[0670] As one embodiment, "the time-domain interval length between the control sub-signal and the data sub-signal is equal to or greater than the minimum number of OFDM symbols of the first time interval" includes: the time-domain interval length between the control sub-signal and the data sub-signal is greater than or equal to the minimum number of OFDM symbols of the first time interval.

[0671] As an example, "the time-domain interval length between the control sub-signal and the data sub-signal is equal to or greater than the minimum number of OFDM symbols of the first time interval" includes: the time-domain interval length between the control sub-signal and the data sub-signal is greater than the minimum number of OFDM symbols of the first time interval.

[0672] As one embodiment, "the time-domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the time-domain interval length between the control sub-signal and the data sub-signal is at least one OFDM symbol.

[0673] As an example, "the time-domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the time-domain interval between the control sub-signal and the data sub-signal is multiple OFDM symbols.

[0674] As an example, "the time-domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the cutoff boundary of the control sub-signal and the start boundary of the data sub-signal are both aligned with the boundary of the OFDM symbol.

[0675] As one embodiment, "the time-domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the number of OFDM symbols in the time-domain interval between the control sub-signal and the data sub-signal is not less than the minimum number of OFDM symbols in the first time interval.

[0676] As an example, "the time-domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the time-domain interval length between the control sub-signal and the data sub-signal is X OFDM symbols, where X is the minimum number of OFDM symbols not less than the first time interval.

[0677] As one embodiment, "the time-domain interval length between the control sub-signal and the data sub-signal is equal to or greater than the minimum number of OFDM symbols of the first time interval" includes: the time-domain interval length between the control sub-signal and the data sub-signal is X OFDM symbols, wherein, in T represents rounding up, T is the first time interval, and T2 represents the duration of an OFDM symbol.

[0678] As one embodiment, "the time-domain interval length between the control sub-signal and the data sub-signal is equal to or greater than the minimum number of OFDM symbols of the first time interval" includes: the time-domain interval length between the control sub-signal and the data sub-signal is X OFDM symbols, wherein, in Indicates rounding up, X1 is the number of OOK time units equal to the first time interval, and T2 represents the number of OOK time units included in an OFDM symbol.

[0679] As an example, "the time-domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the data information bits included in the first PRDCH are mapped to the first OFDM symbol after the control sub-signal for a period not less than the first time interval.

[0680] As an example, "the time-domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the first symbol occupied by the data sub-signal in the time domain is the first OFDM symbol not less than the first time interval after the latest symbol occupied by the control sub-signal in the time domain.

[0681] As one embodiment, "the time-domain interval length between the control sub-signal and the data sub-signal is equal to the minimum number of OFDM symbols not less than the first time interval" includes: the terminal in this application transmits the data sub-signal on the first OFDM symbol after transmitting the control sub-signal at an interval not less than the first time interval.

[0682] As one embodiment, "the first time interval is equal to absolute time or equal to multiple OOK time units" includes: the first time interval is equal to absolute time.

[0683] As one embodiment, "the first time interval is equal to an absolute time or equal to a plurality of OOK time units" includes: the first time interval is equal to an absolute time.

[0684] As one embodiment, "the first time interval is equal to absolute time or equal to multiple OOK time units" includes: the first time interval is expressed in absolute time.

[0685] As one embodiment, "the first time interval is equal to absolute time or equal to a plurality of OOK time units" includes: the first time interval is expressed as the length of absolute time.

[0686] As one embodiment, "the first time interval is equal to absolute time or equal to multiple OOK time units" includes: the first time interval is equal to multiple OOK time units.

[0687] As one embodiment, "the first time interval is equal to an absolute time or equal to a plurality of OOK time units" includes: the first time interval is an integer number of OOK time units.

[0688] As an example, the unit of the first time interval is seconds.

[0689] As an example, the unit of the first time interval is milliseconds.

[0690] As an example, the unit of the first time interval is microseconds.

[0691] As an example, the first time interval is represented by the number of OOK time units.

[0692] As an example, the value of the first time interval is a non-negative integer.

[0693] As an example, the first time interval includes the processing delay of the IoT device described in this application.

[0694] As one example, the first time interval includes the user's processing latency.

[0695] As one embodiment, the first time interval includes the device's processing latency.

[0696] As one example, the first time interval includes the processing latency of the Ambient IoT device.

[0697] As one embodiment, the first time interval includes the time for decoding control information.

[0698] As one embodiment, the first time interval includes the time of the configuration included in the application control information.

[0699] As one embodiment, the first time interval includes the time required to convert the number of OOK time units included in an OFDM symbol.

[0700] As one embodiment, the first time interval includes the time for changing the number of OOK time units included in an OFDM symbol.

[0701] As one embodiment, the first time interval includes a guard interval between the control sub-signal and the data sub-signal.

[0702] As an example, the first time interval is an offset.

[0703] As an example, the first time interval is a predefined absolute time.

[0704] As an example, the first time interval is a predefined number of OOK time units.

[0705] As an example, the first time interval is a fixed value.

[0706] As an example, the first time interval is a fixed number of OOK time units.

[0707] As an example, the first time interval is hard-coded in the standard.

[0708] As an example, the first time interval depends on the type of IoT device described in this application.

[0709] As an example, different types of IoT devices have different first time intervals.

[0710] As one embodiment, the first time interval is per device type.

[0711] As an example, the first time interval is the number of OOK time units.

[0712] As one example, the first time interval depends on the indication of dynamic signaling.

[0713] As one example, the first time interval depends on the configuration.

[0714] As one embodiment, the first time interval is related to the device's processing power.

[0715] As one example, the first time interval is related to the processing capability of the A-IoT device.

[0716] As an example, the first time interval depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0717] As an example, the first time interval depends on the number of OOK time units included in one OFDM symbol occupied by the data sub-signal in the time domain.

[0718] As an example, the first time interval depends on the number of OOK time units included in one OFDM symbol occupied by the control sub-signal in the time domain.

[0719] As an example, the first time interval is equal to a plurality of OOK time units, and the number of OOK time units equal to the first time interval depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0720] As an example, the first time interval is equal to an absolute time, and the value of the first time interval depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0721] As an example, the first time interval is equal to an absolute time, and the value of the first time interval has a corresponding or mapping relationship with the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0722] As an example, the first time interval depends on the subcarrier spacing of the OFDM symbols occupied by the first PRDCH in the time domain.

[0723] As an example, the first time interval depends on the duration of the OFDM symbol occupied by the first PRDCH in the time domain.

[0724] As an example, the first time interval depends on the sampling rate for the first PRDCH.

[0725] As an example, the first time interval depends on the number of points of the FFT for the first PRDCH.

[0726] As one example, the first time interval depends on the number of subcarriers occupied by the first PRDCH in the frequency domain.

[0727] Example 12

[0728] Example 12 illustrates a structural block diagram of a processing device in a terminal according to an embodiment, as shown in Figure 12. In Figure 12, the processing device 1200 in the terminal includes a first transmitter 1201. The first transmitter 1201 includes a transmitter / receiver 416 (including antenna 420) as shown in Figure 4 of this application, a transmission processor 415, and a controller / processor 440; the first receiver 1202 includes a transmitter / receiver 416 (including antenna 420) as shown in Figure 4 of this application, a reception processor 412, and a controller / processor 440.

[0729] In embodiment 12, the first transmitter 1201 receives a first information block; the first transmitter 1201 transmits a first PRDCH; the first information block configures the first PRDCH; the first PRDCH uses OOK; 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 transmitter of the first PRDCH, the first transmit power value is equal to the smaller value between 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 whether the IoT access process triggered by the first PRDCH is the initial IoT access process.

[0730] As an example, when the IoT access process triggered by the first PRDCH is a non-initial IoT access process, the second power value is equal to the maximum output power value; when the IoT access process triggered by the first PRDCH is an initial IoT access process, the second power value depends on the configuration of the first information block.

[0731] As an example, the second power value is linearly related to the third power value, which depends on the device type of the receiver of the first PRDCH, including at least one of type 1, type 2a, and type 2b.

[0732] As an example, at least one of the maximum output power value and the second power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0733] As an example, the first receiver 1202 receives a first PDRCH, which is a response to the first PRDCH; wherein the first PDRCH carries a first device identifier, which is the identifier of the receiver of the first PRDCH, and the first PRDCH carries at least the first device identifier.

[0734] As an example, the second power value is linearly related to the fourth power value, which depends on whether the first PRDCH carries L1 control information.

[0735] As an example, the first PRDCH includes a control sub-signal and a data sub-signal. The control sub-signal carries control information bits, and the data sub-signal carries data information bits. The time-domain interval between the control sub-signal and the data sub-signal is equal to or greater than the minimum number of OFDM symbols of a first time interval, which is equal to an absolute time or equal to multiple OOK time units.

[0736] Example 13

[0737] Example 13 illustrates a structural block diagram of a processing device for an Internet of Things (IoT) device, as shown in Figure 13. In Figure 13, the processing device 1300 in the IoT device includes a second receiver 1301. The second receiver 1301 includes a receive-related module 1409, a BB (Baseband) logic 1413, a memory 1418, and a clock generator 1419, as shown in Figure 14 of this application; the second transmitter 1302 includes a transmit-related module 1417, as shown in Figure 14 of this application.

[0738] In embodiment 13, the second receiver 1301 receives the first PRDCH; the first information block configures the first PRDCH, and the first PRDCH uses OOK; 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 is equal to the smaller value between 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 whether the IoT access process triggered by the first PRDCH is the initial IoT access process.

[0739] As an example, when the IoT access process triggered by the first PRDCH is a non-initial IoT access process, the second power value is equal to the maximum output power value; when the IoT access process triggered by the first PRDCH is an initial IoT access process, the second power value depends on the configuration of the first information block.

[0740] As an example, the second power value is linearly related to the third power value, which depends on the device type of the Internet of Things device, including at least one of type 1, type 2a and type 2b.

[0741] As an example, at least one of the maximum output power value and the second power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

[0742] As an example, the second transmitter 1302 sends a first PDRCH, which is a response to the first PRDCH; wherein the first PDRCH carries a first device identifier, which is the identifier of the Internet of Things device, and the first PRDCH carries at least the first device identifier.

[0743] As an example, the second power value is linearly related to the fourth power value, which depends on whether the first PRDCH carries L1 control information.

[0744] As an example, the first PRDCH includes a control sub-signal and a data sub-signal. The control sub-signal carries control information bits, and the data sub-signal carries data information bits. The time-domain interval between the control sub-signal and the data sub-signal is equal to or greater than the minimum number of OFDM symbols of a first time interval, which is equal to an absolute time or equal to multiple OOK time units.

[0745] Example 14

[0746] Example 14 illustrates a schematic diagram of the structure of an A-IoT device according to an embodiment of this application, as shown in Figure 14.

[0747] In Figure 14, 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 separate 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.

[0748] As an example, for an A-IoT device 1400 with a peak power consumption of approximately 11W, 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.

[0749] As a non-limiting embodiment, the output of the matching network 1402 is processed sequentially by the RF BPF 1410, the RF envelope detector, the BB LPF 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.

[0750] As an example, for an A-IoT device 1400 with peak power consumption less than or equal to several hundred 1W, if an external carrier wave is used, the receive-related module 1409 may include an RF BPF 1410, an LNA (Low-noise amplifier), 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 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).

[0751] 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 large frequency shifter, a backscatter modulator, and a reflection amplifier before being transmitted by the antenna 1401.

[0752] As an example, for an A-IoT device 1400 with peak power consumption less than or equal to several hundred 1W, 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).

[0753] 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.

[0754] As an example, for an A-IoT device 1400 with peak power consumption less than or equal to several hundred 1W, 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 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.

[0755] 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.

[0756] As an example, for an A-IoT device 1400 with peak power consumption less than or equal to several hundred 1W, if an internally generated carrier wave 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.

[0757] 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.

[0758] 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.

[0759] As an example, the A-IoT device is the Internet of Things device described in this application.

[0760] 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 may include only some modules of the structure of the A-IoT device in this example, or may include other modules not shown in Figure 14.

[0761] 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.

[0762] 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 be considered descriptive rather than restrictive in any way. 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 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 is equal to the smaller value between 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 whether the IoT access process triggered by the first PRDCH is the initial IoT access process.

2. The method according to claim 1, characterized in that, When the IoT access process triggered by the first PRDCH is a non-initial IoT access process, the second power value is equal to the maximum output power value; when the IoT access process triggered by the first PRDCH is an initial IoT access process, the second power value depends on the configuration of the first information block.

3. The method according to claim 1 or 2, characterized in that, The second power value is linearly related to the third power value, which depends on the device type of the receiver of the first PRDCH, including at least one of type 1, type 2a, and type 2b.

4. The method according to any one of claims 1-3, characterized in that, At least one of the maximum output power value and the second power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

5. The method according to any one of claims 1-4, characterized in that, include: Receive the first PDRCH, which is a response to the first PDRCH; The first PDRCH carries a first device identifier, which is the identifier of the receiver of the first PDRCH, and the first PDRCH carries at least the first device identifier.

6. The method according to any one of claims 1-5, characterized in that, include: The second power value is linearly related to the fourth power value, which depends on whether the first PRDCH carries L1 control information.

7. The method according to any one of claims 1-6, characterized in that, The first PRDCH includes a control sub-signal and a data sub-signal. The control sub-signal carries control information bits, and the data sub-signal carries data information bits. The time-domain interval between the control sub-signal and the data sub-signal is equal to or greater than the minimum number of OFDM symbols of a first time interval, which is equal to an absolute time or equal to multiple OOK time units.

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, wherein the first PRDCH uses OOK; Wherein, 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 is equal to the smaller value between 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 whether the IoT access process triggered by the first PRDCH is the initial IoT access process.

10. The method according to claim 9, characterized in that, When the IoT access process triggered by the first PRDCH is a non-initial IoT access process, the second power value is equal to the maximum output power value; when the IoT access process triggered by the first PRDCH is an initial IoT access process, the second power value depends on the configuration of the first information block.

11. The method according to claim 9 or 10, characterized in that, The second power value is linearly related to the third power value, which depends on the device type of the Internet of Things device, including at least one of type 1, type 2a and type 2b.

12. The method according to any one of claims 9-11, characterized in that, At least one of the maximum output power value and the second power value depends on the number of OOK time units included in one OFDM symbol occupied by the first PRDCH in the time domain.

13. The method according to any one of claims 9-12, characterized in that, include: Send the first PDRCH, which is a response to the first PDRCH; The first PDRCH carries a first device identifier, which is the identifier of the IoT device, and the first PDRCH carries at least the first device identifier.

14. The method according to any one of claims 9-13, characterized in that, The second power value is linearly related to the fourth power value, which depends on whether the first PRDCH carries L1 control information.

15. The method according to any one of claims 9-14, characterized in that, The first PRDCH includes a control sub-signal and a data sub-signal. The control sub-signal carries control information bits, and the data sub-signal carries data information bits. The time-domain interval between the control sub-signal and the data sub-signal is equal to or greater than the minimum number of OFDM symbols of a first time interval, which is equal to an absolute time or equal to multiple OOK time units.

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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