Signal processing method and apparatus, and signal sending method and apparatus

Abstract

Provided in the embodiments of the present application are a signal processing method and apparatus, and a signal sending method and apparatus. The signal sending method comprises: a terminal device receiving first information sent by a first device, wherein the first information is used for triggering / activating, scheduling / controlling or configuring the generation and / or sending of a second signal; and the terminal device generating the second signal on the basis of the first information, and / or determining, on the basis of the first information, a first time-domain resource and / or a first frequency-domain resource, wherein the second signal is a bit-level repeating signal or a block-level repeating signal, and the first time-domain resource and / or the first frequency-domain resource is at least used for the transmission of the second signal, and / or is at least reserved for the transmission of the second signal.

Description

Signal processing method, signal sending method and device TECHNICAL FIELD

[0001] The present application relates to the field of communication technology. BACKGROUND

[0002] From the early era of 2G system to 4G system, the main service object of the cellular mobile communication system is the mobile terminal equipment held by people. With the rapid development of mobile Internet and Internet of Things, since the late era of 4G system, the application scenarios of Internet of Things considered and supported in the evolution process of the cellular mobile communication system are more and more rich, and accordingly more kinds of Internet of Things device terminal types are supported and landed in actual network deployment and service application, for example, enhanced Machine-Type Communication (eMTC) type terminal device, Narrow Band Internet of Things (NB-IoT) type terminal device, RedCap type terminal device, etc. With the strengthening of the diversity of Internet of Things terminal device types, the cellular mobile system has stronger and stronger service ability for vertical industry.

[0003] However, in the massive Internet of Things devices, the field of large number and lower cost Internet of Things terminal devices is still a blank of the cellular mobile communication system. In order to be able to provide more robust, more reliable and more complete Internet of Things application solutions, how to support lower cost Internet of Things terminal devices in the 3GPP cellular mobile system has become a problem to be solved.

[0004] It should be noted that the above introduction to the technical background is only for the convenience of clearly and completely describing the technical scheme of the present application, and for the convenience of understanding by those skilled in the art. The above technical scheme cannot be considered as known to those skilled in the art only because it is described in the background section of the present application.

[0005] SUMMARY

[0006] Radio Frequency Identification (RFID) system is a solution for the field of Internet of Things (IoT) terminal devices with large quantity and lower cost. RFID system is widely applied. The advantage of RFID system is that the tag cost is low and the price is cheap. The RFID tag size is small, and the size and material of the applied object are less limited, so it is easier to apply to various object management and object tracking scenarios. One disadvantage of the RFID system is that the information reading range of the RFID tag (based on the communication range of the wireless signal) is small. Using the artificial handheld tag reader scheme, the labor cost may become the main expense of the use cost. Using a special RFID port or gateway to read and manage RFID tags requires a higher deployment cost. In addition, the simple logical architecture of the RFID system cannot better coordinate the interference in the radio wave transmission, so the system capacity and spectrum use efficiency are generally low.

[0007] Compared with the RFID system, in the 3GPP 5G system, tag-type terminal devices are supported, which can reuse the existing base station deployment and support industry applications based on this type of terminal through the existing cellular mobile communication network, thereby effectively reducing the deployment cost and use cost. The 3GPP 5G system can provide reliable authentication, network coordination, and accurate and stable terminal device management mechanism, and can also optimize the network based on this to improve the system capacity and spectrum use efficiency.

[0008] Supporting tag-type terminal devices can also be called ambient IoT devices, which can be called AIoT (Ambient internet of thigs, AIoT) devices, ambient IoT devices, passive IoT devices, and can also be simply referred to as tag-type devices, etc. The device that directly communicates with the AIoT device is called a reader, or an interrogator, etc. The reader can exist in the network device, so that the AIoT device and the 5G network can directly communicate, without the terminal device transmitting information between the AIoT device and the 5G network. The reader can also exist in the terminal device, so that the indirect network communication of the ambient IoT is realized, indicating that in the communication between the ambient IoT device and the 5G network, the terminal device supporting the ambient IoT helps to transmit information between the ambient IoT device and the 5G network.

[0009] The inventors find that, as a new type of Internet of Things terminal in the 5G system, the cost of the tag type terminal device (Ambient IoT device) is severely limited. The hardware capability of the device is obviously weaker than that of the ordinary smart phone and other existing cellular mobile communication system supported Internet of Things type devices. For example, the signal processing capability of the tag type terminal device is very limited, and the crystal oscillator carried by the tag type terminal device may have a large error. Due to the limited device capability of the tag type terminal device (Ambient IoT device), how to improve the coverage capability of the tag type terminal device (Ambient IoT device) system is also a problem to be solved; in addition, due to the limitation of power consumption and complexity of the tag type terminal device (Ambient IoT device), the tag type terminal device (Ambient IoT device) will drift in time domain and frequency domain when sending signals, resulting in that the tag type terminal device (Ambient IoT device) cannot send signals on the indicated / configured resources.

[0010] To solve at least one of the above problems, the embodiments of the present application provide a signal processing method, a signal sending method, a device and a communication system.

[0011] According to an aspect of the embodiments of the present application, a signal processing device is provided, applied to a terminal device, comprising:

[0012] A receiving unit receives first information sent by a first device, wherein the first information is used to trigger / activate, or schedule / control, or configure generation and / or sending of a second signal;

[0013] A processing unit generates the second signal according to the first information and / or determines a first time domain resource and / or a first frequency domain resource according to the first information, wherein the second signal is a bit level repetition signal or a block level repetition signal, and the first time domain resource and / or the first frequency domain resource are at least used for transmission of the second signal and / or at least reserved for transmission of the second signal.

[0014] According to another aspect of the embodiments of the present application, a signal sending device is provided, applied to a network device, comprising:

[0015] A sending unit sends first information to a terminal device, wherein the first information is used to trigger / activate, or schedule / control, or configure generation and / or sending of a second signal;

[0016] The terminal device generates the second signal according to the first information and / or determines first time domain resources and / or first frequency domain resources according to the first information, wherein the second signal is a bit level repetition signal or a block level repetition signal, and the first time domain resources and / or the first frequency domain resources are at least used for transmission of the second signal and / or are at least reserved for the second signal transmission.

[0017] According to another aspect of the embodiments of the present application, a communication system is provided, comprising a terminal device and / or a network device,

[0018] The terminal device comprises the apparatus of the foregoing aspect.

[0019] The network device comprises the apparatus of the foregoing aspect.

[0020] One of the beneficial effects of the embodiments of the present application is that the terminal device can reduce the offset in time domain and frequency domain caused by capability limitation, so that the signal transmitted by the terminal device can be completely received; and the terminal device can avoid collision of the second signal transmitted by the terminal device with other uplink signals or downlink signals, thereby improving the accuracy of signal reception or transmission and improving the efficiency of resource scheduling; and the terminal device can support transmission of a repetition signal, thereby improving the probability that the signal transmitted by the device at the cell edge can be correctly received by the network side, and further improving the uplink coverage of the network.

[0021] Specific embodiments of the application are disclosed herein, and represented in the accompanying drawings, illustrating the principles of the application in a manner that can be employed by those skilled in the art. It is understood that the embodiments of the application are not limited in scope to the specific embodiments disclosed. Numerous modifications, alterations, and equivalents can be apparent to one of skill in the art in view of the principles of the application as disclosed herein and as embodied in the appended claims.

[0022] Features described and / or illustrated with respect to one implementation can be used in the same or similar manner in one or more other implementations, in combination with or in place of features in the other implementations.

[0023] It should be emphasized that the term "comprises / comprising" when used in this specification is taken to mean the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps, components, or groups thereof. BRIEF DESCRIPTION OF DRAWINGS

[0024] Elements and features of one or more embodiments of the application described in one figure or implementation can be combined with elements and features of one or more other figures or implementations. Also, in the drawings, like reference numerals can indicate corresponding parts throughout the several views of the drawings. In addition, the first digit or digits of a reference numeral typically correspond to the figure in which the object first appears, whereas the latter digits correspond to the particular element.

[0025] The accompanying drawings, which are included to provide a further understanding of the embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is understood that the accompanying drawings are merely exemplary of the application and are not intended to be limiting thereof. In the drawings:

[0026] FIGS. 1A to 1C are schematic diagrams of a communication system according to embodiments of the present application;

[0027] FIG. 2 is a schematic diagram of a signal processing method according to embodiments of the present application;

[0028] FIGS. 3A and 3B are schematic diagrams of a second signal according to embodiments of the present application;

[0029] FIGS. 4A to 4B are schematic diagrams of a first time domain resource according to embodiments of the present application;

[0030] FIGS. 5A to 5B are schematic diagrams of a second signal transmission according to embodiments of the present application;

[0031] FIG. 6 is a schematic diagram of a fourth time domain resource according to embodiments of the present application;

[0032] FIGS. 7A to 7E are schematic diagrams of a preamble and / or midamble and / or postamble according to embodiments of the present application;

[0033] FIGS. 8A to 8C are schematic diagrams of transmission of a first information and / or a fourth signal according to embodiments of the present application;

[0034] FIGS. 9A to 9D are schematic diagrams of first time domain resource related information according to embodiments of the present application;

[0035] FIGS. 10A to 10D are schematic diagrams of first frequency domain resource related information according to embodiments of the present application;

[0036] FIG. 11 is a schematic diagram of a first frequency resource according to embodiments of the present application;

[0037] FIG. 12 is a schematic diagram of a D2R transmission according to embodiments of the present application;

[0038] FIGS. 13A to 13G are schematic diagrams of D2R repetition resources according to embodiments of the present application;

[0039] FIGS. 14A to 14E are schematic diagrams of a second signal transmission according to embodiments of the present application;

[0040] FIGS. 15A to 15I are schematic diagrams of a preamble and / or midamble and / or postamble of a second signal according to embodiments of the present application;

[0041] FIG. 16 is a schematic diagram of linear coding of a second signal according to an embodiment of the present application;

[0042] FIG. 17 is a schematic diagram of a signal processing apparatus according to an embodiment of the present application;

[0043] FIG. 18 is a schematic diagram of a signal transmission method according to an embodiment of the present application;

[0044] FIG. 19 is a schematic diagram of a signal transmission apparatus according to an embodiment of the present application;

[0045] FIG. 20 is a schematic diagram of a first device according to an embodiment of the present application;

[0046] FIG. 21 is a schematic diagram of a terminal device according to an embodiment of the present application. DETAILED DESCRIPTION

[0047] The foregoing and other features of the present application will become apparent to those skilled in the art upon consideration of the following description of specific embodiments of the present application, taken in conjunction with the accompanying drawings. In the description of embodiments of the present application, specific terminology is employed for the sake of clarity. However, the application is not intended to be limited to the specific embodiments described, but rather, is intended to include all modifications, equivalents, and alternatives that fall within the scope of the appended claims.

[0048] In the embodiments of the present application, the terms "first", "second", and the like are used to distinguish different elements from one another, but do not indicate spatial arrangement or temporal order of the elements, and the elements should not be limited by these terms. The term "and / or" includes any one and all combinations of the associated listed terms. The terms "comprise", "include", "have", and the like, mean the presence of the stated feature, element, component, or assembly, but do not exclude the presence or addition of one or more other features, elements, components, or assemblies.

[0049] In the embodiments of the present application, the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise. The term "the" should be construed to mean "at least one" or "one or more" unless the context clearly indicates otherwise. In addition, the term "based on" should be interpreted as "based, at least in part, on" and the term "based upon" should be interpreted as "based, at least in part, upon" unless the context clearly indicates otherwise.

[0050] In the embodiments of the present application, the term "communication network" or "wireless communication network" can refer to a network conforming to any communication standard, such as Long Term Evolution (LTE), LTE-Advanced (LTE-A), Wideband Code Division Multiple Access (WCDMA), High-Speed Packet Access (HSPA), and the like.

[0051] In addition, the communication between devices in the communication system can be performed according to any phase communication protocol, which can include, but is not limited to, the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, and future 5G, New Radio (NR), 6G, and the like, and / or other currently known or to be developed communication protocols.

[0052] In the embodiments of the present application, the term "network device" refers to a device that accesses a terminal device to a communication network and provides services for the terminal device in the communication system, for example. The network device can include, but is not limited to, the following devices: a base station (BS), an access point (AP), a transmission reception point (TRP), a broadcast transmitter, a mobile management entity (MME), a gateway, a server, a radio network controller (RNC), a base station controller (BSC), and the like.

[0053] The base station can include, but is not limited to, a node B (NodeB or NB), an evolved node B (eNodeB or eNB), and a 5G base station (gNB), an IAB donor, and the like, and can further include a remote radio head (RRH), a remote radio unit (RRU), a relay, or a low-power node (such as a femto, a pico, and the like). In addition, the term "base station" can include some or all functions thereof, and each base station can provide communication coverage for a specific geographic area. The term "cell" can refer to a base station and / or its coverage area, depending on the context in which the term is used.

[0054] In the embodiments of the present application, the term "user equipment" (UE) refers to a device that accesses a communication network through a network device and receives network services, which can also be referred to as "terminal equipment" (TE). The terminal equipment can be fixed or mobile, and can also be referred to as a mobile station (MS), a terminal, a user, a subscriber station (SS), an access terminal (AT), a station, a mobile terminal (MT), and the like.

[0055] The terminal equipment can include, but is not limited to, the following devices: a cellular phone, a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a machine type communication device, a laptop computer, a cordless phone, a smart phone, a smart watch, a digital camera, and the like.

[0056] For another example, in an Internet of Things (IoT) scenario or the like, the terminal equipment can also be a machine or device that performs monitoring or measurement, which can include, but is not limited to, the following devices: a machine type communication (MTC) terminal, a vehicle-mounted communication terminal, a device-to-device (D2D) terminal, a machine-to-machine (M2M) terminal, a tag type terminal equipment, and the like.

[0057] In addition, the term "network side" or "network device side" refers to one side of the network, which can be a certain base station, or can include one or more network devices as described above. The term "user side" or "terminal side" or "terminal equipment side" refers to one side of the user or terminal, which can be a certain UE, or can include one or more terminal equipments as described above. In this document, "device" can refer to a network device or a terminal equipment without special indication.

[0058] In the following description, the terms "uplink control signal" and "uplink control information (UCI)" or "physical uplink control channel (PUCCH)" can be interchangeable without causing confusion, and the terms "uplink data signal" and "uplink data information" or "physical uplink shared channel (PUSCH)" can be interchangeable;

[0059] The terms "downlink control signal" and "downlink control information (DCI)" or "physical downlink control channel (PDCCH)" can be interchangeable, and the terms "downlink data signal" and "downlink data information" or "physical downlink shared channel (PDSCH)" can be interchangeable.

[0060] The signal can also be referred to as information or a channel. Transmitting / receiving a transmission / signal / channel / information on a resource can be understood as transmitting / receiving the transmission / signal / channel / information using the resource. However, in the following description, "signal", "channel" and "information" can also be interchangeable without causing confusion.

[0061] In the embodiments of the present application, the high layer signaling may, for example, be radio resource control (RRC) signaling; the RRC signaling may, for example, include an RRC message, such as a broadcast / common RRC message / signaling (for example, a master information block (MIB), system information), a dedicated RRC message / signaling; or an RRC information element (RRC IE); or an information field included in the RRC message or the RRC information element (or an information field included in the information field). The high layer signaling may, for example, also be medium access control layer (MAC) signaling; or be referred to as a MAC control element (MAC CE). The signaling may, for example, be adaptation layer signaling; in addition, the low layer may, for example, be replaced by a physical layer, but the present application is not limited thereto. The information or signal names used in the embodiments of the present application are only examples, and other names can also be used, and the embodiments of the present application are not limited thereto.

[0062] In the embodiments of the present application, multiple means at least two, or two or more.

[0063] In the embodiments of the present application, pre-defined means defined by a protocol or determined according to rules defined by a protocol, without additional configuration. Configuration / indication means direct or indirect configuration / indication by a network device through high-layer signaling and / or physical-layer signaling. The configuration / indication can be achieved by introducing a high-layer parameter in high-layer signaling, where the high-layer parameter refers to fields and / or information elements / units / members (IEs) in high-layer signaling, and the like. The physical-layer signaling refers to, for example, but is not limited to, control information (DCI) carried by a physical downlink control channel or control information carried by a sequence.

[0064] For ease of description, the following describes a base station as an example of an access network device. In the following description, “if”, “in the case of” and “when” can be used interchangeably without causing confusion. “Resource block”, “RB” and “PRB”, “physical resource block”, “common resource block (CRB)” can be interchangeable. “Configuration / indication / provision / given” can be interchangeable. “Index” and “ID” can be interchangeable.

[0065] The following describes scenarios of the embodiments of the present application by way of examples, but the present application is not limited thereto.

[0066] FIGS. 1A to 1C are schematic diagrams of a communication system according to the embodiments of the present application, which schematically illustrates the case of taking a terminal device and a network device as examples. As shown in FIGS. 1A to 1C, the communication system 100 can include a network device 101 and a terminal device 102. For simplicity, FIGS. 1A to 1C only take one terminal device and one network device as examples, but the embodiments of the present application are not limited thereto.

[0067] The network device can directly communicate with the terminal device (AIOT device), for example, as shown in FIG. 1A, directly transmitting a signal to the terminal device or directly receiving a signal from the terminal device. The network device can also communicate with the terminal device through an intermediate node, for example, as shown in FIG. 1B, transmitting a signal to the terminal device by using the intermediate node 103 (which can be a repeater or an IAB node or a UE or a relay, etc.) or receiving a signal from the terminal device by using the intermediate node. The network device can also transmit a signal to the terminal device or receive a signal from the terminal device with the assistance of the intermediate node 103 (which can be a repeater or an IAB node or a UE or a relay, etc.), for example, as shown in FIG. 1C.

[0068] In this embodiment, the network device sends or the terminal device receives signals / information / configurations from the network device, which can be sent by the network device directly to the terminal device, sent by the network device to the terminal device via an intermediate node, sent by the network device to the terminal device with the help of an auxiliary node, or sent by the network device to the terminal device through other methods. Unless otherwise specified, this embodiment is not limited in this way.

[0069] In this embodiment, the terminal device sends or the network device receives signals / information from the terminal device, which can be sent by the terminal device and directly received by the network device, sent by the terminal device and received by the network device via an intermediate node, sent by the terminal device and received by the network device with the help of an auxiliary node, or sent by the terminal device and received by the network device through other methods. Unless otherwise specified, this embodiment is not limited in this way.

[0070] The inventors find that for some AIoT devices with very limited capabilities, such as device type 1, only backscattering carrier wave (CW) and no signal power amplification capability. Some AIoT devices with power amplification capability, such as device type 2a and device type 2b, due to the limitation of the battery of the AIoT device and the limitation of power consumption, the power amplification capability is also very limited. Therefore, for the AIoT device to reader (D2R) link of the AIoT system, i.e. the link from the AIoT device to the reader, the signal power sent by the AIoT device is limited. The signal sent by the AIoT device far away from the reader may not reach the reader due to the limited power, or may not be correctly received by the reader due to interference. Therefore, the D2R link of the AIoT system is likely to have coverage problems; in addition, due to the limitation of power consumption and complexity of the AIoT device, and the requirement of ultra-low power consumption and ultra-low complexity of the AIoT device, the precision of the crystal oscillator of the AIoT device is much lower than that of the ordinary terminal device, so the AIoT device will have clock drift when sending D2R signals, for example, the precision of the sampling frequency offset (SFO) of the AIoT device is 10 Xppm, where for device 1, X can be up to 5, and for device 2a / 2b, X can be 3 or 2. The time domain resource occupied by the AIoT device sending the D2R signal can be longer or shorter than the time domain resource actually configured by the reader by the length caused by the SFO clock drift. Therefore, the AIoT device will drift in the time domain and the frequency domain when sending the D2R signal, resulting in the AIoT device being unable to send the D2R signal on the resource indicated / configured by the reader.

[0071] To at least one of the above problems, the embodiments of the present application provide a signal processing method, a signal sending method and apparatus.

[0072] Various embodiments of the present application will be described below in conjunction with the accompanying drawings. These embodiments are only exemplary and are not limiting of the present application.

[0073] Embodiments of the first aspect

[0074] The embodiments of the present application provide a signal processing method, which is described from the side of a terminal device.

[0075] FIG. 2 is a schematic diagram of a signal processing method according to an embodiment of the present application. As shown in FIG. 2, the method comprises:

[0076] 201. The terminal device receives first information sent by a first device, wherein the first information is used to trigger / activate, or schedule / control, or configure the generation and / or sending of a second signal;

[0077] 202. The terminal device generates the second signal according to the first information and / or determines a first time domain resource and / or a first frequency domain resource according to the first information, wherein the second signal is a bit-level repetition signal or a block-level repetition signal, and the first time domain resource and / or the first frequency domain resource are at least used for the transmission of the second signal and / or are at least reserved for the transmission of the second signal.

[0078] Since the second signal is generated according to the first information, the offset of the terminal device in the time domain and the frequency domain caused by the capability limitation can be reduced, so that the signal sent by the terminal device can be completely received. In addition, the first time domain resource and / or the first frequency domain resource are determined according to the first information, so that the collision of the second signal sent by the terminal device with other uplink signals or downlink signals can be avoided, and the efficiency of resource scheduling can be improved. Furthermore, the terminal device can send a repetition signal, so that the signal energy received at the receiving end of the first device can be improved, so that the probability that the signal sent by the device at the cell edge can be correctly received by the network side can be improved, and thus the uplink coverage of the network can be improved.

[0079] In some embodiments, the terminal device is an AIoT device; the first device is a reader of the AIoT device, for example, the reader can be a network device, can be an intermediate node, or can be a terminal device.

[0080] For example, in the topology shown in FIG. 1A, the first device is a network device, and in the topology shown in FIG. 1B, the first device is an intermediate node, which can be a conventional terminal device (for example, a user equipment) different from the AIoT device or can be another device that supports AIoT functions.

[0081] In some embodiments, the signal sent by the reader to the AIoT device can be referred to as a R2D (reader to device) signal or a downlink signal, the signal sent by the AIoT device to the reader can be referred to as a D2R (device to reader) signal or an uplink signal; the link through which the reader sends signals to the AIoT device can be referred to as a R2D (reader to device) link or a downlink, and the link through which the AIoT device sends signals to the reader can be referred to as a D2R (device to reader) link or an uplink, etc. The embodiments of the present application are not limited in this regard.

[0082] In some embodiments, the AIoT device sends a repeated signal to enhance the coverage capability of the D2R link, and the second signal generated and sent by the terminal device according to the first information is a D2R repetition signal.

[0083] In some embodiments, the second signal is a bit-level repetition signal or a block-level repetition signal.

[0084] For example, for the case of "the second signal is a block-level repetition signal", after the AIoT device receives one D2R repetition related R2D signal, all the bits (according to the occurrence) received from the higher layer and / or the physical layer are attached with CRC (if used) and then repeated Rblock times, and the repeated content can be sent in one D2R transmission or in multiple D2R transmissions; and / or, the AIoT device receives Rblock R2D transmissions, the content / commands / information of the Rblock R2D transmissions are the same, and the AIoT device generates and / or sends Rblock corresponding D2R information bits according to the Rblock R2D transmissions, and the Rblock corresponding D2R information bits generated by the AIoT device are the same or different.

[0085] For example, for the case of "the second signal is a block-level repetition signal", after the AIoT device receives one D2R repetition related R2D signal, the AIoT device generates D2R transmission information bits, which are information bits after adding CRC check bits, and the AIoT device repeats each bit in the information bits containing CRC check bits Rbit times and then performs forward error correction coding (FEC) or does not perform forward error correction coding (FEC) and then performs sending processing, which includes but is not limited to linear coding, channel coding, modulation, etc., and the steps of the above sending processing are not limited in order. For example, the specific process of linear coding, channel coding, modulation, etc. will be described in detail in the subsequent part of the present application.

[0086] For example, the above "Rblock" and "Rbit" are positive integers greater than or equal to 1, and the present application does not limit this.

[0087] FIGS. 3A and 3B are schematic diagrams of the second signal according to an embodiment of the present application.

[0088] For example, as shown in FIG. 3A, for the case of "the second signal is a bit-level repetition signal", the information bits of the second signal are the information bits after bit-level repetition Rbit times of D2R information bits plus CRC check bits.

[0089] For example, as shown in FIG. 3B, for the case of "the second signal is a block-level repetition signal", the information bits of the second signal are the D2R information bits plus the CRC check bits, and then the information bits are repeated Rblock times at the block level.

[0090] In some embodiments, the "D2R repetition" described above can also be called other names, such as multiple D2R transmission, multiple PDRCH transmission, PDRCH repetition, etc., and the present application does not limit this.

[0091] In some embodiments, the terminal device further generates and / or transmits the second signal according to the related parameters of the second signal, and the related parameters of the second signal at least include one of the following information: trigger information / activation information of the second signal; repetition coefficient of the second signal; information related to the first time domain resource; information related to the first frequency domain resource.

[0092] In some embodiments, the first information is carried by at least one of the following information: layer 1 control information, high layer control information, high layer command, and high layer data.

[0093] The following examples are given in connection with the specific content of the first information to illustrate "the terminal device further generates and / or transmits the second signal according to the related parameters of the second signal":

[0094] In some embodiments, the related parameters of the second signal are determined according to the first information and / or a predefined manner.

[0095] In some embodiments, the trigger information / activation information of the second signal, and / or the repetition coefficient of the second signal, and / or the information related to the first time domain resource, and / or the information related to the first frequency domain resource, etc. can be indicated by the first information, and / or can be determined by a standard pre-agreed manner.

[0096] In some embodiments, the related parameters of the second signal are determined according to the first information, wherein the first information is used to trigger / activate the transmission of the second signal, and / or the first information is used to schedule / control the transmission of the second signal, and / or the first information is used to configure the transmission of the second signal. In some embodiments, the first information is used to trigger / activate the transmission of the second signal.

[0097] For example, the first information is trigger information / activation information of the D2R repetition, thereby triggering the AIoT device to generate and / or transmit the second signal (D2R signal), and after the AIoT device receives the trigger information / activation information, the AIoT starts to prepare to generate and / or transmit the second signal (D2R signal).

[0098] In some embodiments, the first information is used to schedule / control the transmission of the second signal, and / or the first information is used to configure the transmission of the second signal.

[0099] For example, the AIoT device receives the first information from the first device, the AIoT device generates the second signal (D2R signal), and generates and / or transmits the D2R signal according to the first information.

[0100] For example, the first information is control information / scheduling information of the second signal, and / or the first information is configuration information of the second signal.

[0101] For example, the first information at least contains one of the following information: repetition coefficient of the second signal; first time domain resource related information; first frequency domain resource related information, for example, the first information is carried by layer 1 control information / higher layer control information / system information / R2D data.

[0102] The details of “repetition coefficient of the second signal”; “first time domain resource related information”; “first frequency domain resource related information” will be introduced later.

[0103] In some embodiments, the related parameters of the second signal are determined according to the first information and / or a predefined manner.

[0104] In some embodiments, the related parameters of the second signal at least include trigger information / activation information of the second signal, which can be indicated by the first information and / or can be determined by a standard predefined manner.

[0105] As an example, the trigger information / activation information of the second signal can be indicated by the first information.

[0106] For example, the related parameters of the second signal at least include trigger information / activation information of the second signal, and the related parameters of the second signal are carried by the first information.

[0107] For example, the AIoT device receives the first information from the first device, and the AIoT device starts (prepares) to generate the second signal (D2R signal).

[0108] In some embodiments, the first information is trigger information / activation information of D2R repetition, whereby the AIoT device generates and / or transmits a second signal (D2R signal) after receiving the trigger information / activation information, and the AIoT device starts to prepare to generate and / or transmit the second signal (D2R signal).

[0109] For example, the trigger information / activation information of D2R repetition can also be called other names, such as trigger indication information, activation indication information, etc., which are not limited in the present application.

[0110] For example, the first information is trigger information / activation information of D2R signal, which is 1-bit information, the value of the bit is “0”, the AIoT device does not need to transmit D2R repetition; the value of the bit is “1”, the AIoT device starts to prepare to generate the D2R signal; for example, the trigger information / activation information is 1-bit information in layer 1 control information / higher layer control information / system information / R2D data, etc. For example, the 1-bit information is a D2R repetition trigger field in layer 1 control information, and for another example, the 1-bit information is a 1-bit parameter of a higher layer, etc.

[0111] For another example, the first information is trigger information / activation information of the D2R signal, for example, it is a code, and the code is included in layer 1 control information / higher layer control information / system information / R2D data, indicating that the AIoT device starts to prepare to generate the second signal (D2R signal); the code is not included in layer 1 control information / higher layer control information / system information / R2D data, indicating that the AIoT device does not need to prepare to generate the D2R signal; for another example, the value of the code in layer 1 control information / higher layer control information / system information / R2D data is in the state of not activated / disabled / not working, then the AIoT device does not need to prepare to generate the D2R signal, and the value of the code in layer 1 control information / higher layer control information / system information / R2D data is in the state of activated / enabled / working, then the AIoT device prepares to generate the D2R signal; for another example, the code is 4 bits, the value of the code is “0000”, indicating that the AIoT device does not need to send D2R repetition, the value of the code is “0013”, indicating that the AIoT device needs to send D2R repetition, and the like; it should be noted that the above examples are only for illustration, and the specific content of the first information is not limited in the present application.

[0112] For another example, one or more patterns composed of first time domain resources and / or first frequency domain resources and / or repetition coefficients of the second signal can be predefined in the standard, and the trigger information / activation information indicates one of the patterns, and the AIoT device receives the trigger information / activation information and determines the first time domain resources and / or the first frequency domain resources and / or the repetition coefficients of the second signal.

[0113] As an example, the trigger information / activation information of the second signal is determined by a standard pre-agreed manner.

[0114] For example, the AIoT device receives repetition coefficient of the second signal indicated by the first device or scheduling information of the second signal, and the AIoT device starts to prepare to generate the second signal, wherein the trigger information of the second signal is the repetition coefficient indication information of the second signal or the scheduling information of the second signal.

[0115] For another example, the AIoT device receives control information of the second signal indicated by the first device, and the type / format of the control information is used to indicate the control information related to the second signal. The AIoT device receives the control information of the type / format and starts to prepare to generate the second signal, wherein the trigger information of the second signal is the type / format of the control information.

[0116] In some embodiments, the related parameters of the second signal at least include repetition coefficient of the second signal, wherein the repetition coefficient of the second signal can be indicated by the first information and / or can be determined by a standard pre-agreement.

[0117] As an example, the repetition coefficient of the second signal is indicated by the first information; the repetition coefficient of the second signal is indicated by the first device to the AIoT device through layer 1 control information or configured to the AIoT device through higher layer control information / higher layer command / R2D data.

[0118] For example, the repetition coefficient of the second signal is indicated by N bits in the layer 1 control information, for example, 3 bits in the layer 1 control information indicate the repetition coefficient of the second signal, wherein when the value of the bits is “010”, it represents that the repetition coefficient is 2, and when the value of the bits is “011”, it represents that the second signal is repeated three times; for another example, the repetition coefficient of the second signal supports {2, 4, 8} three kinds, 2 bits in the layer 1 control information indicate the repetition coefficient of the second signal, when the value of the bits is “00”, the AIoT device does not send the second signal, when the value of the bits is “01”, the AIoT device sends the second signal with a repetition coefficient of 2, when the value of the bits is “10”, the AIoT device sends the second signal with a repetition coefficient of 4, when the value of the bits is “11”, the AIoT device sends the second signal with a repetition coefficient of 8, etc. For example, the value of the repetition coefficient represents the number of times of repeating the D2R signal, etc., which is not limited in the present application.

[0119] For another example, the repetition coefficient of the second signal is configured to the AIoT device by higher layer control information / higher layer command / R2D data, and the AIoT device is triggered / starts to transmit the second signal, the repetition coefficient is determined according to the configuration of the higher layer parameter.

[0120] For another example, the repetition coefficient of the second signal is indicated to the AIoT device by a higher layer command; for example, see the method of bit indication in the aforementioned “layer 1 control information”, which is not repeated here.

[0121] As an example, the repetition coefficient of the second signal is determined by a standard pre-agreement.

[0122] For example, the standard pre-agreement sets the repetition coefficient of the second signal to a fixed value by default, for example, the repetition coefficient of the bit-level repeated signal is 2 by default, for another example, the repetition coefficient of the block-level repeated signal is 4 by default, etc.

[0123] For another example, the standard pre-agreement sets the repetition coefficient of the second signal of AIoT device type 1 (device type 1 or device 1) to 2 by default, and the repetition coefficient of the second signal of AIoT device type 2 (device type 2 or device 2a / 2b) to 4 by default, etc.

[0124] In some embodiments, the related parameters of the second signal at least include first time domain resource related information and / or first frequency domain resource related information, wherein the first time domain resource related information and / or the first frequency domain resource related information can be indicated by the first information and / or can be determined by a standard pre-agreement.

[0125] As an example, part / all of the first time domain resource related information can be indicated by the first information or can be determined by a standard pre-agreement.

[0126] For example, part of the time domain resource information in the first time domain resource related information can be indicated by the first information, and another part of the time domain resource information can be determined by a standard pre-agreement.

[0127] For example, all of the time domain resource information in the first time domain resource related information can be indicated by the first information, or all of the time domain resource information can be determined by a standard pre-agreement.

[0128] The specific content of the first time domain resource related information will be described in detail in the following content.

[0129] As an example, part / all of the first frequency domain resource related information can be indicated by the first information, or determined by a standard pre-agreed manner.

[0130] For example, part of the frequency domain resource information in the first frequency domain resource related information can be indicated by the first information, and another part of the frequency domain resource information is determined by a standard pre-agreed manner.

[0131] For example, all of the frequency domain resource information in the first frequency domain resource related information can be indicated by the first information, or all of the frequency domain resource information is determined by a standard pre-agreed manner.

[0132] The specific content of the first frequency domain resource related information will be described in detail in the following content.

[0133] In some embodiments, at least one of the trigger information / activation information of the second signal, the repetition coefficient of the second signal, the first time domain resource related information, and the first frequency domain resource related information can be obtained by any combination of being indicated / configured by the first information or being determined by a standard pre-agreed manner.

[0134] For example, the trigger information / activation information of the second signal can be determined by a standard pre-agreed manner, while the repetition coefficient of the second signal, the first time domain resource related information, and the first frequency domain resource related information can be indicated by the first information, etc. There can be other combinations, which will not be enumerated one by one in this application.

[0135] The following describes the related content of the first time domain resource related information:

[0136] In some embodiments, the first time domain resource and / or the first frequency domain resource is at least used for transmission of the second signal and / or is at least reserved for transmission of the second signal. For example, the first time domain resource and / or the first frequency domain resource is a resource configured / reserved / indicated to the terminal device by the first device.

[0137] In some embodiments, the first time domain resource related information at least contains one of the following information: the starting position of the first time domain resource; the earliest starting position of the first time-frequency resource; the latest starting position of the first time-frequency resource; the offset of the first time domain resource; the duration of the first time domain resource; the longest duration of the first time-frequency resource; the shortest duration of the first time-frequency resource; the ending position of the first time domain resource; the earliest ending position of the first time-frequency resource; the latest ending position of the first time-frequency resource; the period of the first time domain resource.

[0138] In some embodiments, the start position and / or the earliest start position and / or the latest start position and / or the end position and / or the earliest end position and / or the latest end position and / or the duration and / or the longest duration and / or the shortest duration and / or the period and / or the offset are indicated in a first time unit, which includes absolute time units or predefined time units.

[0139] For example, the first time unit can be a chip duration / length of a D2R transmission, where a chip is a duration of one bit after a D2R information bit is modulated, for example, a chip duration / length is a duration of one bit after an information bit is modulated after being encoded; for example, after an information bit is linearly encoded and then modulated by OOK, a duration of a low level of a chip “0” or a high level of a chip “1” is a chip duration / length; for example, the first time unit can be absolute time, for example, T seconds / milliseconds / microseconds; for example, the first time unit can be a frame / subframe / slot / symbol defined by an NR system; for example, the first time unit can be a time unit newly defined by an AIoT system.

[0140] In some embodiments, the start position and / or the earliest start position and / or the latest start position and / or the end position and / or the earliest end position and / or the latest end position and / or the duration and / or the longest duration and / or the shortest duration and / or the period and / or the offset of the first time domain resource can be indicated by the first information or can be pre-agreed by a standard.

[0141] In some embodiments, the start position of the first time domain resource / the earliest start position of the first time domain resource / the latest start position of the first time domain resource is a position after a first time reference point by a first time offset, and / or the duration of the first time domain resource / the longest duration of the first time domain resource / the shortest duration of the first time domain resource is a duration between the start position of the time domain resource and a second time reference point by a second time offset, and / or the end position of the first time domain resource / the earliest end position of the first time domain resource / the latest end position of the first time domain resource is a position after a third time reference point by a third time offset.

[0142] FIGS. 9A to 9D are schematic diagrams of first time domain resource related information according to embodiments of the present application;

[0143] For example, the first time domain resource related information comprises a starting position of the first time domain resource and / or an offset of the first time domain resource, a duration of the first time domain resource and / or an ending position of the first time domain resource.

[0144] As shown in FIG. 9A, wherein the first time reference point is a starting position or an ending position of the second time domain resource carrying the first information, for example, as shown in FIG. 9A, in the case that the first time reference point is the starting position of the second time domain resource carrying the first information, the corresponding first time offset is offset 1, and in the case that the first time reference point is the ending position of the second time domain resource carrying the first information, the corresponding first time offset is offset 2; the duration of the first time domain resource is the time interval between the starting position of the first time domain resource and the ending position of the first time domain resource.

[0145] For example, the first time domain resource related information comprises a starting position of the first time domain resource and / or an offset of the first time domain resource, a duration of the first time domain resource and / or an ending position of the first time domain resource, and a period.

[0146] As shown in FIG. 9B, wherein the first time reference point is a starting position or an ending position of the second time domain resource carrying the first information, for example, as shown in FIG. 9B, in the case that the first time reference point is the starting position of the second time domain resource carrying the first information, the corresponding first time offset is offset 1, and in the case that the first time reference point is the ending position of the second time domain resource carrying the first information, the corresponding first time offset is offset 2; the starting position of the second first time domain resource is the starting position of the first first time domain resource + the period (P); wherein the duration of the first time domain resource is the time interval between the starting position of the first time domain resource and the ending position of the first time domain resource.

[0147] For example, the first time domain resource related information comprises a starting position of the first time domain resource and / or an offset of the first time domain resource, a duration of the first time domain resource and / or an ending position of the first time domain resource.

[0148] As shown in FIG. 9C, the starting position of the first first time domain resource is offset 1 of the first time domain resource after the starting position or the ending position of the second time domain resource carrying the first information, the starting position of the second first time domain resource is offset 2 of the first time domain resource after the starting position or the ending position of the first first time domain resource, and so on, the starting position of the nth first time domain resource is offset n of the first time domain resource after the starting position or the ending position of the (n-1)th first time domain resource; wherein the duration of all the first time domain resources is the time interval between the starting position of the first time domain resource and the ending position of the first time domain resource (the duration of all the first time domain resources in the configuration (Duration in FIG. 9C) is the same).

[0149] For example, the first time domain resource related information includes the starting position of the first time domain resource and / or the offset of the first time domain resource, the duration of the first time domain resource and / or the ending position of the first time domain resource; or, the first time domain resource related information includes the starting position of the first time domain resource, the offset of the first time domain resource, the duration of the first time domain resource, and the ending position of the first time domain resource.

[0150] As shown in FIG. 9D, the starting position of the first first time domain resource is offset 1 of the first time domain resource after the starting position or the ending position of the second time domain resource carrying the first information, the starting position of the second first time domain resource is offset 2 of the first time domain resource after the starting position or the ending position of the first first time domain resource, and so on, the starting position of the nth first time domain resource is offset n of the first time domain resource after the starting position or the ending position of the (n-1)th first time domain resource; wherein the duration of all the first time domain resources is the time interval between the starting position of the first time domain resource and the ending position of the first time domain resource (the duration of all the first time domain resources in the configuration (Duration 1, Duration 2, Duration 3 in FIG. 9D) can be different); wherein the duration of the first first time domain resource is duration 1, or determined by the ending position 1 of the first first time domain resource; the duration of the second first time domain resource is duration 2, or determined by the ending position 2 of the second first time domain resource; and so on, the duration of the nth first time domain resource is duration n, or determined by the ending position n of the nth first time domain resource.

[0151] The above first time domain resource related information is an example, and the first time domain resource related information can also include other combinations, which are not listed one by one in the present application.

[0152] In some embodiments, the first time reference point can be one of: a start position or an end position of the second time domain resource in which the first information is received; a start position or an end position of a first time domain resource preceding the first time domain resource; a start position or an end position of a third time domain resource in which a previous downlink signal or information is received; a start position or an end position of a time domain resource of a fourth signal; and / or, the second time reference point can be one of: a start position of the first time domain resource; a start position or an end position of the second time domain resource in which the first information is received; a start position or an end position of a first time domain resource preceding the first time domain resource; a start position or an end position of a third time domain resource in which a previous downlink signal or information is received; a start position or an end position of a time domain resource of a fourth signal; and / or, the third time reference point can be one of: a start position of the first time domain resource; a start position or an end position of a preamble of the second signal; a start position or an end position of the second time domain resource in which the first information is received; a start position or an end position of a first time domain resource preceding the first time domain resource; a start position or an end position of a third time domain resource in which a previous downlink signal or information is received; a start position or an end position of a time domain resource of a fourth signal.

[0153] Details about the "fourth signal" will be introduced in the subsequent part of the description.

[0154] In some embodiments, the related information of the first time domain resource can be indicated by the first information or determined in a standard predefined manner.

[0155] For example, the start position of the first time domain resource can be indicated by the first information or determined in a standard predefined manner.

[0156] As an example, the start position of the first time domain resource is indicated by the first information.

[0157] For example, the start position of the first time domain resource is a position after the first time reference point by a first time offset (offset T1), wherein the offset T1 is indicated by the first information.

[0158] For example, the first information directly indicates a value of the offset T1, e.g., 4 time domain resource units or 20 ms.

[0159] For example, the value of offset T1 is supported by the standard, and [log2N] bits in the first information indicate the value of offset T1, where [ ] is the rounding up. For example, when the number of time domain resource units is {1, 2, 4, 8, 16}, 3 bits in the first information indicate the value of T1, and when the value of the 3 bits is "000", offset T1 is 1 time domain resource unit, when the value of the 3 bits is "001", offset T1 is 2 time domain resource units, and so on.

[0160] For example, the starting position of the first time domain resource is determined in a manner predefined by the standard.

[0161] For example, the starting position of the first time domain resource is the position after the first time reference point by a first time offset (offset T1), where offset T1 is predefined by the standard.

[0162] For example, the first time reference point can be one of the starting position or the ending position of the second time domain resource receiving the first information, the starting / ending of the previous D2R transmission, the starting position or the ending position of the third time domain resource receiving the previous downlink signal or information.

[0163] For example, the first time reference point can be indicated by the first information or determined in a manner predefined by the standard.

[0164] In some embodiments, the duration of the first time domain resource can be indicated by the first information or determined in a manner predefined by the standard; the duration of the first time domain resource can be the duration from the starting of the first time domain resource to the second time reference point after the time domain offset second time offset (offset T2).

[0165] For example, the second time offset (offset T2) is indicated by the first information or determined in a manner predefined by the standard.

[0166] For example, the second time reference point can be one of the starting position of the first time domain resource, the starting position or the ending position of the second time domain resource receiving the first information, the starting position or the ending position of the previous first time domain resource, the starting position or the ending position of the third time domain resource receiving the previous downlink signal or information.

[0167] For example, the second time reference point can be indicated by the first information or determined in a manner predefined by the standard.

[0168] In some embodiments, the ending position of the first time-domain resource can be indicated by the first information or determined in a standard pre-defined manner; the ending position of the first time-domain resource is a position after the third time reference point by a third time offset (offset T3).

[0169] For example, the third time offset (offset T3) is indicated by the first information or determined in a standard pre-defined manner.

[0170] As an example, the third time reference point can be one of the starting position of the first time-domain resource, the starting position or ending position of the preamble of the second signal, the starting position or ending position of the second time-domain resource in which the first information is received, the starting position or ending position of the previous first time-domain resource, the starting position or ending position of the third time-domain resource in which the previous downlink signal or information is received.

[0171] For example, the third time reference point can be indicated by the first information or determined in a standard pre-defined manner.

[0172] In some embodiments, the period of the first time-domain resource can be indicated by the first information or determined in a standard pre-defined manner.

[0173] In some embodiments, part of the information related to the first time-domain resource is indicated by the first information, and another part of the information related to the first time-domain resource is pre-defined in a standard manner. For example, the starting of the first time-domain resource is pre-defined in a standard manner, and other information related to the first time-domain resource is indicated by the first information.

[0174] In some embodiments, the first information indicates a first time-domain resource pattern, for example, the information related to the first time-domain resource is combined in the form of a pattern, and the first information indicates the serial number of a certain pattern. The AIoT device receives the serial number of the pattern contained in the first information and determines the indicated first time-domain resource.

[0175] In some embodiments, the terminal device does not receive and / or does not transmit signals within a first minimum time after the starting position of the first time-domain resource and / or within a second minimum time after the ending position of the first time-domain resource.

[0176] In some embodiments, the first minimum time and / or the second minimum time are related to at least the time-domain drift caused by the terminal device sampling frequency offset (SFO).

[0177] Thus, the AIoT device can be prevented from sending the second signal in advance or delaying sending the second signal due to the drift in the time domain caused by the timing error of the SFO, thereby causing the sent second signal to collide with the time domain resources of other downlink R2D signals or uplink D2R signals, and the accuracy of signal reception or transmission is improved.

[0178] FIGS. 4A-4B are schematic diagrams of a first time domain resource according to an embodiment of the present application;

[0179] As an example, the starting position of the first time domain resource of the AIoT device is a position after the first time reference point by a first time offset, and within the first minimum time after the starting position of the first time domain resource, the AIoT device does not receive any R2D signal nor send a D2R signal.

[0180] As shown in FIG. 4A, the first time offset corresponding to the first time reference point (T1) is offset T1, and the time domain interval between the starting position (T1') of the first time domain resource and the starting position of the time domain resource of the second signal sent by the terminal device is the first minimum time (Ts); for example, as shown in FIG. 4A, the upper diagram of FIG. 4A corresponds to the case where the sampling time becomes longer due to the SFO of the terminal device, so the starting position of the time domain resource of the second signal sent by the terminal device drifts backward; for example, as shown in FIG. 4A, the lower diagram of FIG. 4A corresponds to the case where the sampling time becomes shorter due to the SFO of the terminal device, so the starting position of the time domain resource of the second signal sent by the terminal device drifts forward.

[0181] For example, for the first time offset offset T1, offset T1 is at least related to the time domain drift caused by the SFO of the AIoT device, or offset T1 can also be at least related to the processing time of the AIoT device, wherein the processing time includes the time required for receiving and demodulating and decoding the first information, etc. For example, offset T1 is greater than / equal to / greater than or equal to the time domain drift caused by the SFO of the AIoT device. For another example, offset T1 is greater than / equal to / greater than or equal to the time domain drift caused by the SFO of the AIoT device and / or the processing time of the AIoT device.

[0182] For example, for the first minimum time (Ts), the first minimum time is at least related to the timing drift caused by the SFO of the AIoT device, or, Ts can also be at least related to the processing time of the AIoT device, wherein the processing time includes the time required for receiving and demodulating and decoding the first information, etc., and the value of Ts is greater than / equal to / equal to / greater than the timing drift caused by the SFO of the AIoT device.

[0183] For example, the related information of the value of Ts can be sent (indicated / configured) to the AIoT device by the reader, or can be determined in a manner predetermined by the standard; for example, the value of Ts can also be calculated by other parameters configured by the reader to the AIoT device; for example, Ts is M time domain resource units, and the reader indicates / configures the value of M to the AIoT device, wherein the time domain resource unit is, for example, the first time unit; for example, the value of Ts can be determined in a manner predetermined by the standard, for example, the standard predefines that the value corresponding to device 1 is Ts1, and the value corresponding to device 2 (including device 2a / 2b) is Ts2; for example, the standard predefines that the value corresponding to device 1 is Ts1, the value corresponding to device 2a is Ts2, and the value corresponding to device 2b is Ts3, etc.

[0184] For example, the value of Ts is reported by the AIoT device to the first device.

[0185] As an example, the end position of the first time domain resource of the AIoT device is a position after the second time reference point by a second time offset, and within the second minimum time before and / or after the end position of the first time domain resource, the AIoT device does not receive any R2D signal nor sends any D2R signal.

[0186] As shown in FIG. 4B, the second time offset corresponding to the second time reference point (T2) is offset T2, and the second minimum time before and / or after the end position (T2’) of the first time domain resource is Te. For example, as shown in FIG. 4B, the upper diagram of FIG. 4B corresponds to the situation that the sampling time becomes longer due to the SFO of the terminal device, so the end position of the time domain resource for sending the second signal by the terminal device drifts backward; for example, as shown in FIG. 4B, the lower diagram of FIG. 4B corresponds to the situation that the sampling time becomes shorter due to the SFO of the terminal device, so the end position of the time domain resource for sending the second signal by the terminal device drifts forward

[0187] For example, Te is at least related to a timing drift caused by the SFO of the AIoT device, or, Te is at least related to a processing time of the AIoT device, wherein the processing time includes a time required for receiving and demodulating / decoding the first information, etc., for example, wherein a value of Te is greater than / equal to / equal to / greater than the timing drift caused by the SFO of the AIoT device.

[0188] For example, the value of Te can be sent (indicated / configured) to the AIoT device by the reader, or can be determined in a manner predefined by the standard; for example, Te is M time domain resource units, and the reader indicates / configures a value of M to the AIoT device, wherein the time domain resource unit is a first time unit; for another example, the value of Te can be determined in a manner predefined by the standard, for example, the standard predefines that a value of Te corresponding to device 1 is Te1, a value of Te corresponding to device 2 (including device 2a / 2b) is Te2, for another example, the standard predefines that a value of Te corresponding to device 1 is Te1, a value of Te corresponding to device 2a is Te2, a value of Te corresponding to device 2b is Te3, etc.

[0189] In some embodiments, the terminal device sends the second signal on at least one fourth time domain resource, wherein the fourth time domain resource carries the second signal sent to the first device, and wherein information sent on the at least one fourth time domain resource is the same or different; wherein the at least one fourth time domain resource coincides with or is the same as the at least one first time domain resource, and / or the at least one first time domain resource contains the at least one fourth time domain resource.

[0190] In some embodiments, the fourth time domain resource carries the second signal sent to the first device. For example, the fourth time domain resource is a time domain resource actually occupied by the terminal device for sending the second signal.

[0191] In some embodiments, a starting position of the fourth time domain resource is not earlier than a starting position of the first time domain resource and / or an earliest starting position of the first time-frequency resource; and / or an ending position of the fourth time domain resource is not later than an ending position of the first time domain resource and / or a latest starting position of the first time-frequency resource.

[0192] For example, the second signal is sent on N fourth time domain resources, and information sent on the N fourth time domain resources is the same or different.

[0193] For example, content sent by the second signal on each fourth time domain resource can be referred to as a D2R transmission.

[0194] For example, the AIoT device receives time domain resource information related to the second signal from the first device. The time domain resource information contains scheduling information of N first time domain resources, and the AIoT device transmits N D2R transmissions of the second signal on N fourth time domain resources.

[0195] FIGS. 5A-5B are schematic diagrams of second signal transmission according to embodiments of the present application;

[0196] As shown in FIG. 5A, the second signal is a bit-level repetition signal.

[0197] For example, the information bits of the second signal are Rbit times of the information bits of the D2R information bits plus CRC check bits after bit-level repetition;

[0198] For another example, the information bits of the second signal are Rbit times of the bits after FEC (forward error correction) encoding of the D2R information bits plus CRC check bits, or the information bits of the second signal are Rbit times of the bits after adding CRC check bits and FEC encoding of the D2R information bits, wherein the second signal is transmitted in N D2R transmissions on N fourth time domain resources, and the message size / transmission block size in each D2R transmission is TBmax, that is, the maximum number of bits transmitted in each D2R transmission is TBmax, wherein the number of information bits of the second signal is TB, and the second signal is transmitted in N D2R transmissions, and the message size / transmission block size / information bit number in each D2R transmission is TB / N.

[0199] As shown in FIG. 5B, the second signal is a block-level repetition signal.

[0200] For example, the information bits of the second signal are the information bits of the D2R information bits plus CRC check bits repeated Rblock times at the block level; for example, the block-level repetition information bits sent on at least N fourth time domain resources are the same, wherein the second signal is sent in D2R transmission on the N fourth time domain resources, N is Rblock, and each repeated block of the second signal is sent on one D2R transmission, wherein the number of information bits of the second signal is TB, and the D2R repetition signal is sent in N D2R transmissions, and the message size / transmission block size / number of information bits in each D2R transmission is TB / N.

[0201] Optionally, the D2R transmission sent on the N fourth time domain resources can also contain other information in addition to the repetition information bits, for example, containing the number of repeated transmissions carried on the fourth time domain resource, or the N D2R transmissions have different or the same preambles and / or midambles and / or postambles, or energy information of the AIoT device, etc.

[0202] In some embodiments, the starting position of the first fourth time domain resource in the N fourth time domain resources is at a position after a first time reference point by a first time offset, and the starting position of the fourth time domain resource other than the first one in the N fourth time domain resources is at a position after a fourth time reference point by a fourth time offset.

[0203] In some embodiments, the duration of the N fourth time domain resources is the duration between a second time reference point by a second time offset.

[0204] In some embodiments, the ending position of the N fourth time domain resources is a position after a third time reference point by a third time offset.

[0205] FIG. 6 is a schematic diagram of a fourth time domain resource according to an embodiment of the present application;

[0206] For example, as shown in FIG. 6, the AIoT device transmits the nth D2R transmission, does not receive any R2D signal and / or does not transmit the nth D2R transmission signal between the end position of the time domain resource after the (n-1)th D2R transmission and a third minimum time (Ts') after a fourth time offset (offset T4) after the end, where 1 < n < N and n is a positive integer, wherein the fourth time offset (offset T4) is at least related to the time domain drift caused by the SFO of the AIoT device, or offset T4 can also be at least related to the processing time of the AIoT device, wherein the processing time includes the time required for receiving and demodulating and decoding the first information, etc., the value of Ts' can be sent (indicated / configured) to the AIoT device by the reader, or can be determined in a manner predefined by the standard, etc., for example, see the related configuration manner of the value of Ts, which is not repeated here.

[0207] In some embodiments, the terminal device transmits the second signal on at least one of the fourth time domain resources, and the signal on the fourth time domain resource includes a preamble and / or a midamble and / or a postamble, wherein the preamble and / or the midamble and / or the postamble at least provide synchronization / clock for the signal on at least one of the subsequent fourth time-frequency resources.

[0208] In some embodiments, the preamble and / or the midamble and / or the postamble of the signal on the current fourth time-frequency resource at least provide synchronization / clock for the signal on at least one of the subsequent fourth time-frequency resources.

[0209] FIGS. 7A to 7E are schematic diagrams of the preambles and / or midambles and / or postambles of the embodiments of the present application.

[0210] As shown in FIGS. 7A and 7B, the AIoT device transmits the D2R preamble and / or the D2R midamble immediately before transmitting the nth D2R transmission, wherein specific examples of the D2R preamble and / or the D2R midamble will be described in detail later.

[0211] For example, the D2R preamble and / or D2R midamble in the current D2R transmission provides synchronization / clock / Chip synchronization / Chip duration / Chip length, etc. of the subsequent D2R transmission; wherein the signal transmitted in each D2R transmission can be a bit-level repetition signal or a block-level repetition signal.

[0212] For example, as shown in FIG. 7C, the time domain interval between the starting position of the fourth signal and the end of the previous D2R transmission is greater than / is greater than or equal to / is equal to the time domain drift caused by the AIoT device SFO, for example, the time domain interval can refer to the related configuration of the aforementioned Ts, which is not repeated here.

[0213] In some embodiments, the second signal is transmitted on a continuous time domain resource.

[0214] For example, as shown in FIG. 7D, the AIoT device transmits the second signal on a continuous time domain resource, wherein the first D2R transmission carries a D2R preamble, and the other D2R transmissions carry a D2R midamble.

[0215] For example, the D2R preamble and / or D2R midamble in the current D2R transmission provides synchronization / clock / Chip synchronization / Chip duration / Chip length, etc. of the subsequent D2R transmission; wherein the signal transmitted in each D2R transmission can be a bit-level repetition signal or a block-level repetition signal.

[0216] In some embodiments, the first device estimates the timing drift of the AIoT device due to SFO according to D2R preamble and / or D2R midamble. The first device does not transmit R2D signals during the estimated timing drift, and / or, the first device still receives D2R transmissions between the estimated timing drift, and the AIoT device does not expect to receive R2D signals between the timing drift, and / or, the AIoT device does not transmit other D2R transmissions between the timing drift.

[0217] Thus, the first device can determine the clock drift of the AIoT device according to the clock provided by the D2R preamble and / or D2R midamble, and make subsequent resource scheduling according to the clock of the AIoT device, to avoid the first device stopping receiving before the second signal is completely transmitted, and to avoid the first device scheduling R2D signals or D2R signals before the second signal is completely received, thus causing resource collision with the second signal.

[0218] In some embodiments, the AIoT device transmits a D2R postamble immediately after transmitting the nth D2R transmission, where specific examples of the D2R postamble will be described in detail later.

[0219] For example, as shown in FIG. 7E, the D2R postamble is used to indicate the end of the D2R transmission, and / or, provide synchronization / clock / Chip synchronization / Chip duration / Chip length, etc. of the subsequent D2R transmission; where the signal transmitted in each D2R transmission can be a bit-level repetition signal, or a block-level repetition signal.

[0220] Thus, the first device can determine the clock drift of the AIoT device according to the clock provided by the D2R postamble, and make subsequent resource scheduling according to the clock of the AIoT device, and receive according to the indication of the end of the D2R transmission by the D2R postamble, to avoid the first device stopping receiving before the second signal is completely transmitted, and to avoid the first device scheduling R2D signals or D2R signals before the second signal is completely received, thus causing resource collision with the second signal.

[0221] In some embodiments, the terminal device receives the first information before sending the second signal, the processing unit sends the second signal on at least one of the fourth time domain resources, wherein the first information comprises scheduling information of at least one of the first time domain resources, and / or the receiving unit receives a fourth signal from the first device between the fourth time domain resources, wherein the first information and / or the fourth signal provides synchronization / clock of at least one of the first time domain resources.

[0222] FIGS. 8A-8C are schematic diagrams of sending of the first information and / or the fourth signal according to embodiments of the present application.

[0223] In some embodiments, the first information and the fourth signal provide synchronization / clock of at least one of the first time domain resources.

[0224] For example, as shown in FIG. 8A, the AIoT device receives the first information from the first device, the first information at least comprising scheduling information of N first time domain resources, and the AIoT device receives the fourth signal from the first device after sending the nth D2R transmission, wherein 1≤n

[0225] For example, as shown in FIG. 8B, the AIoT device does not receive any R2D signal and / or does not send the (n+1)th D2R transmission signal between the end position of the nth D2R transmission time domain resource and the reception of the fourth signal, wherein 1≤n

[0226] In some embodiments, the fourth signal at least comprises one of the following signals: the first information; a signal for providing synchronization / clock; a pilot comprising at least a clock-acquisition part; a signal other than the first information from the first device.

[0227] In some embodiments, the first information at least provides synchronization / clock of at least one of the first time domain resources.

[0228] Thus, the synchronization / clock is provided by the R2D signal before the AIoT device sends the D2R transmission, avoiding the AIoT device out of synchronization with the reader in a long D2R transmission, reducing the drift in time domain caused by the SFO of the local oscillator of the AIoT device, thereby avoiding the time domain drift of the D2R transmission too large to collide with other transmissions.

[0229] For example, as shown in FIG. 8C, the AIoT device receives N first information from the first device, wherein the N first information contains time domain resource information of corresponding N D2R transmissions, the AIoT device receives a fourth signal from the first device after sending the nth D2R transmission, or the AIoT device receives corresponding first information from the first device before sending the n+1th D2R transmission, wherein 1≤n<N and n is a positive integer. The first information provides synchronization / clock obtained by the AIoT device when sending the n+1th D2R transmission.

[0230] For example, the AIoT device does not receive any R2D signal and / or does not send the n+1th D2R transmission signal between the end position of the time domain resource of the nth D2R transmission and the time interval of receiving the first information, wherein 1≤n<N and n is a positive integer.

[0231] In some embodiments, the second signal can be a signal subjected to line coding, which can provide the first device with the clock of D2R.

[0232] For example, in the process of line coding, a change in amplitude transition provides clock calibration when each bit is transmitted, and the first device can determine the clock of the D2R signal of the AIoT according to the change.

[0233] Thus, the second signal does not need to provide the clock through the preamble and / or midamble and / or postamble, thereby saving resources.

[0234] In some embodiments, the terminal device does not send the second signal in a first time scheduled by the first information, wherein the first time is greater than or equal to the sum of the transmission time of the second signal and the sampling frequency offset (SFO) time.

[0235] Thus, it can be avoided that the first device stops receiving before the second signal is completely sent, and it can be avoided that the first device schedules R2D signals or D2R signals before the second signal is completely received, thereby causing resource collision with the second signal.

[0236] In some embodiments, the information related to the first frequency domain resource at least contains one of the following information: the start position of the first frequency domain resource; the offset of the first frequency domain resource; the size of the first frequency domain resource; the transmission bandwidth of the second signal; the transmission center frequency point of the second signal; the guard bandwidth; the bandwidth number / bandwidth identifier / channel identifier / frequency domain resource unit identifier / frequency domain resource unit index.

[0237] In some embodiments, the starting position and / or the offset and / or the size of the first frequency domain resource and / or the transmission bandwidth and / or the transmission center frequency and / or the guard bandwidth are indicated in units of first frequency domain resource units.

[0238] For example, the first frequency domain resource unit can be one of the following: a subcarrier spacing (SCS), for example, the size of the first frequency domain resource unit is N SCSs; a resource block (RB), for example, the size of the first frequency domain resource unit is N RBs; a unit defined in kHz, MHz, for example, the size of the first frequency domain resource unit is 180 kHz; a newly defined frequency domain resource unit.

[0239] In some embodiments, the size of the first frequency domain resource / the transmission bandwidth of the second signal is the size of the frequency domain resource occupied by the transmission of the second signal, and the size of the first frequency domain resource / the transmission bandwidth of the second signal can also be represented by the offset of the first frequency domain resource, for example, the frequency point start and the frequency domain offset.

[0240] In some embodiments, the size of the first frequency domain resource / the transmission bandwidth of the second signal can be indicated by the first information or can be pre-agreed by the standard.

[0241] As an example, the size of the first frequency domain resource / the transmission bandwidth of the second signal is pre-agreed by the standard.

[0242] For example, the size of the first frequency domain resource is 15 kHz, or the transmission bandwidth of the second signal is 180 kHz, etc.

[0243] For another example, the size of the first frequency domain resource is specified with different values for different device types, for example, 180 kHz for device 1 and 250 kHz for device 2.

[0244] As an example, the size of the first frequency domain resource / the transmission bandwidth of the second signal is indicated by the first information.

[0245] For example, the size of the first frequency domain resource / the transmission bandwidth of the second signal is M first frequency domain resource units, where M is a positive integer greater than or equal to 1 and is indicated by the first information, wherein the size of the first frequency domain resource can be notified to the AIoT device by the first device sending R2D signal; or can be a pre-agreed value, for example, 15 kHz, 180 kHz, etc.

[0246] For another example, the size of the first frequency domain resource supports Nf values, and the size of the first frequency domain resource / transmission bandwidth of the second signal is indicated by the first information, for example, [log2Nf] bits in the first information indicate the size of the first frequency domain resource / transmission bandwidth of the second signal, where [] is the ceiling function; for example, the size of the first frequency domain resource / transmission bandwidth of the second signal can be {180 kHz, 200 kHz, 250 kHz, 400 kHz, 500 kHz}, and 2 bits in the first information indicate the 5 values, and the first frequency domain resource / transmission bandwidth of the second signal is 200 kHz; and the like.

[0247] For another example, the first information directly indicates the size of the first frequency domain resource / transmission bandwidth of the second signal, for example, the first information directly indicates that the size of the first frequency domain resource / transmission bandwidth of the second signal is 180 kHz.

[0248] For example, the size of the first frequency domain resource / transmission bandwidth of the second signal can also be indicated by the offset of the first frequency domain resource, and the size of the first frequency domain resource is the starting position of the first frequency domain resource to the frequency domain offset F1 after the second frequency domain reference point.

[0249] In some embodiments, the starting position of the first frequency domain resource is the starting position of the frequency domain resource, and the starting position of the first frequency domain resource can be indicated by the first information or can be pre-agreed by the standard.

[0250] As an example, the starting position of the first frequency domain resource is pre-agreed by the standard; for example, the starting position of the first frequency domain resource is 900 MHz by default.

[0251] For another example, the starting position of the first frequency domain resource is offset F2 after the first frequency domain reference point, where the first frequency domain reference point and offset F2 are pre-defined by the standard.

[0252] As an example, the starting position of the first frequency domain resource is indicated by the first information, and the starting position of the first frequency domain resource can also be indicated by the offset of the first frequency domain resource.

[0253] For example, the starting position of the first frequency domain resource is the frequency domain position of the first frequency domain reference point after offset F2 in the frequency domain.

[0254] For example, the first frequency domain reference point can be one of the following: a start frequency point / end frequency point of the frequency domain resource of the first information, a start frequency point / end frequency point of the frequency domain resource of a previous R2D transmission of the second signal, a start frequency point / end frequency point of the frequency domain resource of a previous second signal of the second signal, and a start frequency point / end frequency point of the frequency domain resource of a carrier wave, a certain default frequency point such as 900Mhz; wherein the frequency domain offset F2 is indicated by the first information.

[0255] In some embodiments, the transmission center frequency point of the second signal can be indicated by the first information or be pre-agreed by the standard.

[0256] As an example, the transmission center frequency point of the second signal is pre-agreed by the standard; for example, the transmission center frequency point of the second signal is 900MHz by default.

[0257] For another example, the transmission center frequency point of the second signal is offset F3 after a third frequency domain reference point, wherein the third frequency domain reference point and the offset F3 are pre-defined by the standard.

[0258] For another example, the transmission center frequency point of the second signal is the center frequency point of each channel / frequency domain resource unit.

[0259] As an example, the transmission center frequency point of the second signal is indicated by the first information.

[0260] For example, the transmission center frequency point of the second signal can also be indicated by the offset of the first frequency domain resource.

[0261] For example, the transmission center frequency point of the second signal is the frequency domain position after the third frequency domain reference point offset by the frequency domain offset F3.

[0262] For example, the third frequency domain reference point can be one of the following: a start frequency point / end frequency point of the frequency domain resource of the first information, a start frequency point / end frequency point of the frequency domain resource of a previous R2D transmission of the second signal, a start frequency point / end frequency point of the frequency domain resource of a previous second signal of the second signal, and a start frequency point / end frequency point of the frequency domain resource of a carrier wave, a certain default frequency point such as 900Mhz, a start frequency point of a certain channel / frequency domain resource unit, wherein the frequency domain offset F3 is indicated by the first information.

[0263] In some embodiments, the information related to the first frequency domain resource includes a start position of the first frequency domain resource, a size of the first frequency domain resource, and a transmission bandwidth of the second signal.

[0264] FIG. 10A to FIG. 10D are schematic diagrams of the first frequency domain resource related information according to embodiments of the present application;

[0265] As shown in FIG. 10A, the first frequency domain resource related information comprises a starting position of the first frequency domain resource, a size of the first frequency domain resource, a transmission bandwidth of the second signal, i.e., the first frequency domain resource related information comprises one first frequency domain resource.

[0266] As shown in FIG. 10B, the first frequency domain resource related information comprises starting positions of the first frequency domain resources, sizes of the first frequency domain resources, transmission bandwidths of the second signal, i.e., the first frequency domain resource related information comprises a plurality of first frequency domain resources, wherein the sizes of the first frequency domain resources / transmission bandwidths of the second signal are the same, e.g., the value indicated by the first frequency domain resource information (e.g., the first information carries).

[0267] As shown in FIG. 10C, the first frequency domain resource related information comprises a starting position of the first frequency domain resource / offset of the first frequency domain resource, sizes of the first frequency domain resources, transmission bandwidths of the second signal, i.e., the first frequency domain resource related information comprises related information of a plurality of first frequency domain resources, wherein the starting position of the first first frequency domain resource is determined according to the first frequency domain reference point and the starting position of the first frequency domain resource in the first information, and the starting positions of the other first frequency domain resources are determined according to the ending frequency point of the previous first frequency domain resource and the starting position of the first frequency domain resource.

[0268] As shown in FIG. 10D, the first frequency domain resource related information comprises starting positions of the first frequency domain resources, sizes of the first frequency domain resources, transmission bandwidths of the second signal.

[0269] In some embodiments, the first frequency domain resource related information comprises a transmission center frequency point of the second signal, a size of the first frequency domain resource, a transmission bandwidth of the second signal.

[0270] For example, the first information indicates or determines in a manner predefined by the standard a frequency domain offset between the transmission center frequency point of the second signal and the fourth frequency domain reference point, and the size of the first frequency domain resource, the transmission bandwidth of the second signal.

[0271] For example, the fourth frequency domain reference point can be one of the following: a second frequency domain resource starting frequency point / ending frequency point of the first information, a frequency domain resource starting frequency point / ending frequency point of a previous R2D transmission of the second signal, a frequency domain resource starting frequency point / ending frequency point of a previous second signal of the second signal, and a frequency domain resource starting frequency point / ending frequency point of a carrier wave, a certain default frequency point, e.g., 900Mhz, a starting frequency point of a certain channel / frequency domain resource unit.

[0272] In some embodiments, the first information indicates a bandwidth number / bandwidth ID / channel ID / frequency domain resource unit ID / frequency domain resource unit index.

[0273] FIG. 11 is a schematic diagram of a first frequency resource according to an embodiment of the present application;

[0274] For example, the first frequency domain resource of the second signal is in a certain channel, the transmission center frequency point of the second signal is the center frequency point of the channel, and the first frequency domain resource of the second signal is determined according to the size of the first frequency domain resource.

[0275] For another example, the transmission center frequency point of the second signal is the position of the start frequency point of a certain channel after frequency domain offset, and the first frequency domain resource of the second signal is determined according to the size of the first frequency domain resource.

[0276] For another example, the first information indicates a guard band of the first frequency domain resource, and the first frequency domain resource of the second signal is the frequency domain resource after removing the guard band from the bandwidth of a certain channel.

[0277] In some embodiments, the energy of the signal transmitted by the AIoT device and reaching the first device is P1, the value of P1 is less than the threshold P_threshold,1, or the value of P1 is greater than the threshold P_threshold,2, or the value of P1 is within the range [P_min, P_max], and the AIoT device will receive the trigger information / activation information of the second signal from the first device.

[0278] For example, the energy of the signal transmitted by the AIoT device and measured by the first device is P1, the value of P1 is less than / equal to the threshold P_threshold,1, or the value of P1 is greater than / equal to the threshold P_threshold,2, or the value of P1 is within the range [P_min, P_max], and the first device sends the trigger information / activation information of the second signal to the AIoT device.

[0279] For example, the energy P1 of the signal transmitted by the AIoT device measured by the first device, or the energy P1 of the signal transmitted by the AIoT device reaching the first device, can be at least one of the following: the energy of the previous D2R transmission / PDRCH transmitted by the AIoT device before the AIoT device transmits the second signal reaching the first device; the average of the energy of the previous N D2R transmissions / PDRCHs transmitted by the AIoT device before the AIoT device transmits the second signal reaching the first device; the average of the energy of all D2R transmissions / PDRCHs transmitted by the AIoT device within T time before the AIoT device transmits the second signal reaching the first device; the energy of any one D2R transmission / PDRCH / D2R signal transmitted by the AIoT device in the contention-based random access procedure reaching the first device; the average of the energy of all D2R transmissions / PDRCHs / D2R signals transmitted by the AIoT device in the contention-based random access procedure reaching the first device; the energy P1 of the reference signal transmitted by the AIoT device, which is used for the first device to measure the energy of the signal transmitted by the AIoT device.

[0280] For example, the threshold P_threshold,1, and / or P_threshold,2, is the energy threshold of the signal transmitted by the AIoT device reaching the first device, which is used to determine whether the AIoT device needs to transmit the second signal. If the energy of the signal transmitted by the AIoT device reaching the first device is less than the threshold P_threshold,1, the AIoT device needs to transmit the second signal; or, if the energy of the signal transmitted by the AIoT device reaching the first device is greater than the threshold P_threshold,2, the AIoT device needs to transmit the second signal.

[0281] For example, the range [P_min, P_max] is the energy range limit of the signal transmitted by the AIoT device reaching the first device, which is used to determine whether the AIoT device needs to transmit the second signal. If the energy of the signal transmitted by the AIoT device reaching the first device is less than / equal to P_min or greater than / equal to P_max, the AIoT device needs to transmit the second signal.

[0282] In some embodiments, the values of P_threshold,1, and / or P_threshold,2, and / or P_min and P_max in the range [P_min, P_max] are standard pre-specified values.

[0283] For example, the standard predefines one value for P_threshold,1 and / or P_threshold,2 and / or P_min and P_max in the range [P_min, P_max], and this value is applicable to device 1, device 2a, device 2b.

[0284] For another example, the standard predefines one value for P_threshold,1 and / or P_threshold,2 and / or P_min and P_max in the range [P_min, P_max] for device 1, device 2 (including device 2a and device 2b) respectively; the following Table 1, Table 2 are examples for P_threshold,1 and [P_min, P_max] respectively.

[0285] Table 1

[0286] Table 2

[0287] For another example, the standard predefines one value for P_threshold,1 and / or P_threshold,2 and / or P_min and P_max in the range [P_min, P_max] for device 1, device 2a, device 2b respectively; the following Table 3 is an example for P_threshold,2.

[0288] Table 3

[0289] For example, the standard predefines one value for P_threshold,1 and / or P_threshold,2 and / or P_min and P_max in the range [P_min, P_max], and this value is applicable to D2R repetition with any repetition factor / repetition times.

[0290] For another example, the standard predefines one value for P_threshold,1 and / or P_threshold,2 and / or P_min and P_max in the range [P_min, P_max] for D2R repetition with different repetition factor / repetition times respectively; the following table is an example, and any one column in the following Table 4 for P_threshold,1 and / or P_threshold,2 and / or P_min and P_max in the range [P_min, P_max] can be omitted.

[0291] Table 4

[0292] In some embodiments, the value of P_threshold,1, and / or P_threshold,2, and / or P_min and P_max in the range [P_min, P_max] is indicated by the first device to the AIoT device.

[0293] For example, the value of P_threshold,1, and / or P_threshold,2, and / or P_min and P_max in the range [P_min, P_max] is indicated by layer 1 control information, or indicated by higher layer control information / higher layer signal, or indicated by system information, or indicated by other R2D information.

[0294] In some embodiments, the first device sends the trigger information / activation information of the second signal to the AIoT device in the following cases: one or N D2R transmissions / PDRCHs / D2R signals sent by the AIoT device are not received by the first device, or one or N D2R transmissions / PDRCHs / D2R signals sent by the AIoT device fail.

[0295] For example, the first device does not receive the D2R transmission / PDRCH / D2R signal sent by the AIoT device, or the first device does not receive the corresponding D2R transmission / PDRCH / D2R signal / D2R response sent by the AIoT device after sending the R2D transmission / PRDCH.

[0296] For example, the first device does not receive the D2R transmission / PDRCH / D2R signal sent by the AIoT device N times, where the N times of D2R transmission / PDRCH / D2R signal can be continuously sent by the AIoT device or discontinuously sent.

[0297] FIG. 12 is a schematic diagram of D2R transmission according to an embodiment of the present application.

[0298] As shown in FIG. 12, the continuous transmission refers to that the time domain resources of the N times of D2R transmission / PDRCH / D2R signals are adjacent D2R time domain resources, but does not refer to that the time domain resources of the N times of D2R transmission / PDRCH / D2R signals are continuous; the discontinuous transmission refers to that there are other D2R transmission / PDRCH / D2R signals between the N times of D2R transmission / PDRCH / D2R signals, and the time domain resources thereof are not adjacent; for example, the D2R transmission / PDRCH / D2R signals marked with a cross in FIG. 12 are failed D2R transmission / PDRCH / D2R signals, the time domain resources of the continuously failed D2R transmission / PDRCH / D2R signals are adjacent, and the time domain resources of the discontinuously failed D2R transmission / PDRCH / D2R signals are not adjacent.

[0299] In some embodiments, the value of N is a value predefined by a standard.

[0300] For example, the standard predefines one value of N, and the value is applicable to the device 1, the device 2a, and the device 2b.

[0301] For another example, the standard predefines one value of N for the device 1 and the device 2 (including the device 2a and the device 2b) respectively.

[0302] For another example, the standard predefines one value of N for the device 1, the device 2a, and the device 2b respectively.

[0303] In some embodiments, the value of N is indicated by the first device to the AIoT device.

[0304] For example, the value of N is indicated by the layer 1 control information, or indicated by the higher layer control information / higher layer signal, or indicated by the system information, or indicated by other R2D information.

[0305] In some embodiments, the terminal device further transmits a third signal, where the third signal requests the first device to transmit the first information.

[0306] For example, the AIoT device does not receive the R2D transmission / PRDCH / R2D signal sent by the first device, or after the AIoT device sends the D2R transmission / PDRCH / D2R signal and does not receive the corresponding R2D transmission / PRDCH / R2D signal / R2D response sent by the first device, the terminal device sends a third signal, and the third signal requests the first device to send the first information.

[0307] For example, the AIoT device does not receive the R2D transmission / R2D response / PRDCH / R2D signal sent by the first device for N times, and then the terminal device sends a third signal, and the third signal requests the first device to send the first information, wherein the N times of R2D transmission / R2D response / PRDCH / R2D signal can be continuously sent or discontinuously sent by the first device, for example, the continuous sending, discontinuous sending, and setting of N can be referred to the foregoing related content, and will not be repeated here.

[0308] In some embodiments, the third signal is a signal sent by the AIoT device to the first device, and the third signal is used to inform the first device that the AIoT device needs to send the second signal, and the first device needs to send the AIoT device the information related to the second signal and / or the first information.

[0309] For example, the third signal can be carried by D2R control information, wherein the D2R control information can be layer 1 control information or higher layer control information; the third signal can also be carried by D2R signal / D2R data.

[0310] For example, the third signal is 1 bit information, the value of the bit is “0”, the AIoT device does not need to send the second signal, and the first device does not send the AIoT device the information related to the second signal; the value of the bit is “1”, the AIoT device needs to send the second signal, and the first device sends the AIoT device the information related to the second signal.

[0311] For another example, the third signal is a code, and the code is contained in the layer 1 control information / higher layer control information / D2R signal / D2R data, then the AIoT device needs to send the second signal, and the first device sends the AIoT device the information related to the second signal; the code is not contained in the layer 1 control information / higher layer control information / D2R signal / D2R data, then the AIoT device does not need to send the second signal, and the first device does not need to send the AIoT device the information related to the second signal. The code not contained in the layer 1 control information / higher layer control information / D2R signal / D2R data can be that the code is not contained in the layer 1 control information / higher layer control information / D2R signal / D2R data; or that the code is not contained in the field of the layer 1 control information / higher layer control information / D2R signal / D2R data; or that the value of the code in the layer 1 control information / higher layer control information / D2R signal / D2R data is in an inactive state, for example, the code is 4 bits, and the value of the code is “0000” if the AIoT device does not need to send the second signal, and the value of the code is “0013” if the AIoT device needs to send the second signal. The above examples are only for illustration, and the specific number is determined according to the actual situation.

[0312] For another example, the third signal is a parameter in the layer 1 control information / higher layer control information / D2R signal / D2R data, and the AIoT device does not need to send the second signal when the parameter is absent, and the first device does not send the AIoT device the information related to the second signal; the AIoT device needs to send the second signal when the parameter is included in the layer 1 control information / higher layer control information / D2R signal / D2R data, and the first device sends the AIoT device the information related to the second signal. Or, the parameter in the layer 1 control information / higher layer control information / D2R signal / D2R data is a default value, and the AIoT device does not need to send the second signal, and the first device does not send the AIoT device the information related to the second signal; the parameter in the layer 1 control information / higher layer control information / D2R signal / D2R data is another value / activated value, and the AIoT device needs to send the second signal, and the first device sends the AIoT device the information related to the second signal.

[0313] For example, the information related to the second signal at least includes one of the following information: the repetition coefficient of the second signal, the first time domain resource related information, and the first frequency domain resource related information.

[0314] After the above signaling flow is determined, the following describes the information related to D2R repetition in detail.

[0315] The following illustrates the "D2R repetition resource" by way of example:

[0316] FIGS. 13A to 13G are schematic diagrams of the D2R repetition resource according to the embodiments of the present application;

[0317] In some embodiments, the D2R repetition resource supports time domain multiplexing (TDM).

[0318] For example, as shown in FIG. 13A, one second signal (D2R repetition signal) is transmitted on multiple time domain resources (multiple discontinuous time domain resources), i.e., one second signal is transmitted on N discontinuous time domain resources, where N is a positive integer greater than 1, wherein the frequency domain resources of the N D2R transmissions are the same, and the time domain resources are different.

[0319] For example, as shown in FIG. 13B, multiple second signals (D2R repetition signals) are transmitted on multiple time domain resources (multiple discontinuous time domain resources), wherein one D2R repetition signal is transmitted on one time domain resource, where N is a positive integer greater than 1, wherein the frequency domain resources of the N D2R transmissions are the same, and the time domain resources are different.

[0320] In some embodiments, the D2R repetition resource supports frequency domain multiplexing (FDM).

[0321] For example, as shown in FIG. 13C, one second signal (D2R repetition signal) is transmitted on multiple frequency domain resources (multiple discontinuous time domain resources), i.e., one second signal is transmitted on N frequency domain resources, where N is a positive integer greater than 1, wherein the time domain resources of the N D2R transmissions are the same, and the frequency domain resources are different.

[0322] For example, as shown in FIG. 13D, multiple second signals (D2R repetition signals) are transmitted on multiple frequency domain resources (multiple discontinuous time domain resources), wherein one D2R repetition signal is transmitted on one frequency domain resource, where N is a positive integer greater than 1, wherein the time domain resources of the N D2R transmissions are the same, and the frequency domain resources are different.

[0323] In some embodiments, the D2R repetition resource supports time domain multiplexing (TDM) + frequency domain multiplexing (FDM).

[0324] For example, the D2R repetition second is transmitted on different time domain resources and on different frequency domain resources.

[0325] For example, as shown in FIG. 13E, one second signal (D2R repetition signal) is transmitted on N resources, and the time domain resources and the frequency domain resources of the N resources are different, where N is a positive integer greater than 1.

[0326] For example, as shown in FIG. 13F, multiple second signals (D2R repetition signals) are transmitted on N resources, and the time domain resources and the frequency domain resources of the N resources are different, where N is a positive integer greater than 1.

[0327] For example, the D2R repetition is transmitted on different and / or same time domain resources and on different and / or same frequency domain resources.

[0328] For example, as shown in FIG. 13G, one second signal (D2R repetition signal) is transmitted on N resources, where the time domain resources of part of the N resources are the same, the time domain resources of part of the N resources are different, and the frequency domain resources of part of the N resources are the same, and the frequency domain resources of part of the N resources are different, where N is a positive integer greater than 1.

[0329] For example, multiple second signals (D2R repetition signals) are transmitted on N resources, where the time domain resources of part of the N resources are the same, the time domain resources of part of the N resources are different, and the frequency domain resources of part of the N resources are the same, and the frequency domain resources of part of the N resources are different, where N is a positive integer greater than 1.

[0330] The following illustrates “PDRCH generation carrying D2R repetition and / or D2R transmission”:

[0331] In some embodiments, the terminal device performs CRC attachment on the second signal.

[0332] FIGS. 14A to 14E are schematic diagrams of second signal transmission according to embodiments of the present application;

[0333] In some embodiments, the second signal is bit-level repetition, and the information bits of the second signal are information bits after bit-level repetition Rbit times of D2R information bits plus CRC check bits.

[0334] For example, as shown in FIG. 14A, the second signal is transmitted on one continuous time domain resource; for example, as shown in FIG. 14B, the second signal is transmitted on N time domain resources, where the N time domain resources are non-continuous time domain resources; where the information bits of the second signal (i.e., information bits after bit-level repetition Rbit times of information bits after adding CRC check bits) are divided into N information bit blocks, and CRC check bits are generated according to each information bit block and a CRC generation polynomial and added to the N information bit blocks, respectively.

[0335] For example, the number of information bits of each information bit block is the same or different; and the CRC generation polynomials corresponding to each information bit block are the same or different.

[0336] In some embodiments, the second signal is block-level repetition, and the information bits of the second signal are the information bits of the D2R information bits plus the CRC check bits after block-level repetition Rblock times.

[0337] For example, as shown in FIG. 14C, the second signal is transmitted on one continuous time domain resource, for example, Rblock information bit blocks are transmitted on one continuous time domain resource.

[0338] For example, as shown in FIG. 14D, the CRC check bits are generated according to the information bits of the second signal (i.e., the information bits after block-level repetition Rblock times plus the CRC check bits) and the CRC generation polynomial, and are added to the information bits of the second signal, respectively. For example, the generation polynomial of the CRC check bits added to the information bits of the second signal is the same as or different from the generation polynomial of the CRC check bits added to the D2R information bits.

[0339] For example, as shown in FIG. 14E, the second signal is transmitted on N time domain resources, and the information bits of the second signal are divided into N information bit blocks; wherein N is equal to Rblock, or N is not equal to Rblock, for example, N is equal to Rblock, and each repeated block in the second signal is transmitted on N non-continuous time domain resources in turn; for example, N is not equal to Rblock, the information bits of the second signal (i.e., the information bits after block-level repetition Rblock times plus the CRC check bits) are divided into N information bit blocks, and the CRC check bits are generated according to each information bit block and the CRC generation polynomial and are added to the N information bit blocks, respectively; wherein the generation polynomial of the CRC check bits added to the N information bit blocks is the same as or different from the generation polynomial of the CRC check bits added to the D2R information bits.

[0340] In some embodiments, the terminal device determines the generation manner of the CRC check bits according to the first information or a pre-agreed manner.

[0341] In some embodiments, the terminal device performs line coding on the second signal.

[0342] For example, the second signal is the information bits after the information bits plus the CRC check bits are encoded by line coding.

[0343] For example, the encoding manner of the line coding is indicated by the first device to the AIoT device, or determined in a manner predefined by a standard.

[0344] For example, the second signal is transmitted on N time domain resources, and the encoding manners of the line coding of the N D2R transmissions are the same or different.

[0345] For example, the encoding manner of the line coding of the second signal is the same as or different from that of single D2R transmission (i.e., transmission without D2R repetition).

[0346] In some embodiments, the terminal device determines the information related to the line coding, such as the encoding manner, the code rate after encoding, etc., according to the first information or a manner predefined by a standard.

[0347] In some embodiments, the terminal device performs channel coding on the second signal.

[0348] For example, the second signal is information bits after adding CRC check bits, and / or information bits after encoding by line coding and then encoding by channel coding.

[0349] For example, the encoding manner of the channel coding is indicated by the first device to the AIoT device, or determined in a manner predefined by a standard.

[0350] For example, the second signal is transmitted on N time domain resources, and the encoding manners of the channel coding of the N D2R transmissions are the same or different.

[0351] For example, the encoding manner of the channel coding of the second signal is the same as or different from that of single D2R transmission (i.e., transmission without D2R repetition).

[0352] In some embodiments, the terminal device determines the information related to the channel coding, such as the encoding manner, the code rate after encoding, etc., according to the first information or a manner predefined by a standard.

[0353] In some embodiments, the terminal device modulates the second signal.

[0354] For example, the second signal is a signal after adding CRC check bits to the information bits, and / or after encoding by line coding, and / or after encoding by channel coding, and / or after modulation.

[0355] For example, the modulation manner is indicated by the first device to the AIoT device, or determined by a standard pre-specified manner.

[0356] For example, the second signal is transmitted on N time domain resources, and the modulation manners of the N D2R transmissions are the same or different.

[0357] For example, the modulation manner of the second signal is the same as or different from the modulation manner of single D2R transmission (i.e., transmission without D2R repetition).

[0358] In some embodiments, the terminal device determines the modulation-related information according to the first information or a standard pre-agreed manner.

[0359] The following describes the preamble and / or midamble and / or postamble of the second signal in detail:

[0360] FIGS. 15A-15I are schematic diagrams of the preamble and / or midamble and / or postamble of the second signal according to an embodiment of the present application.

[0361] The following describes the preamble of D2R repetition:

[0362] In some embodiments, the second signal is a signal after the aforementioned adding of CRC check bits, and / or after line coding, and / or after channel coding, and / or after modulation, etc.

[0363] In some embodiments, the AIoT device transmits the preamble of D2R repetition immediately before transmitting the second signal; the preamble of D2R repetition can also be referred to as D2R preamble, etc., which is not limited in the present application.

[0364] For example, the preamble of D2R repetition contains at least one of the following information:

[0365] Start indicator part, wherein the Start indicator part is used to provide the start of the following D2R transmissions of the second signal;

[0366] Clock acquisition part, wherein the Clock acquisition part is used to provide the synchronization / Chip synchronization / Chip duration / Chip length, etc. of the following second signal;

[0367] Times of repetition, wherein the times of repetition is used to indicate the following D2R transmission is the transmission of which repetition of the second signal (e.g., times of repetition can also be called other names, such as repetition index, times of repetition, etc.);

[0368] AIoT device power related information.

[0369] In some embodiments, the second signal is a bit-level repetition signal.

[0370] As shown in FIG. 15A, the second signal is transmitted on one continuous time domain resource and one frequency domain resource, and the D2R preamble is transmitted before the second signal.

[0371] As shown in FIG. 15B, the second signal is transmitted on N time domain resources and one frequency domain resource, and the D2R preamble is transmitted before each D2R transmission of the second signal; for example, the preambles before the N D2R transmissions of the second signal are the same or different.

[0372] In some embodiments, the second signal is transmitted on one time domain resource and N frequency domain resources, and the D2R preamble is transmitted before each D2R transmission of the second signal, wherein the preambles before the N D2R transmissions of the second signal are the same or different.

[0373] In some embodiments, the second signal is transmitted on N1 time domain resources and N2 frequency domain resources, where N1 x N2 = N, and a D2R preamble is transmitted before each D2R transmission of the second signal, where the preambles before the N D2R transmissions of the second signal are the same or different.

[0374] In some embodiments, the second signal is a block-level repetition signal.

[0375] As shown in FIG. 15C, the second signal is transmitted on one continuous time domain resource and one frequency domain resource, and a D2R preamble is transmitted before the second signal.

[0376] As shown in FIG. 15D, the second signal is transmitted on N time domain resources and one frequency domain resource, and a D2R preamble is transmitted before each D2R transmission of the second signal; for example, the preambles before the N D2R transmissions of the second signal are the same or different.

[0377] In some embodiments, the second signal is transmitted on one time domain resource and N frequency domain resources, and a D2R preamble is transmitted before each D2R transmission of the second signal, where the preambles before the N D2R transmissions of the second signal are the same or different.

[0378] In some embodiments, the second signal is transmitted on N1 time domain resources and N2 frequency domain resources, where N1 x N2 = N, and a D2R preamble is transmitted before each D2R transmission of the second signal, where the preambles before the N D2R transmissions of the second signal are the same or different.

[0379] The following describes a midamble for D2R repetition:

[0380] In some embodiments, the second signal is a signal after the aforementioned addition of CRC check bits, and / or, line coding, and / or, channel coding, and / or, modulation, and / or, other signal processing procedures.

[0381] In some embodiments, the AIoT device sends a D2R midamble in the middle of the transmission of the second signal; the D2R midamble can also be referred to as D2R midamble, etc., which is not limited in the present application.

[0382] For example, the D2R midamble contains at least one of the following information:

[0383] a start indicator part, wherein the start indicator part is used to provide the start of the D2R transmissions of the subsequent second signal;

[0384] a clock acquisition part, wherein the clock acquisition part is used to provide the synchronization / Chip synchronization / Chip duration / Chip length, etc. of the subsequent second signal;

[0385] a times of repetition, wherein the times of repetition is used to indicate the number of the repeated transmission of the subsequent D2R transmission (for example, times of repetition can also be called other names, such as repetition index, number of repetitions, etc.);

[0386] AIoT device power-related information.

[0387] In some embodiments, the second signal is a block-level repetition signal.

[0388] As shown in FIG. 15E, the second signal is transmitted on a continuous time domain resource and a frequency domain resource, and the D2R midamble is transmitted immediately before the blocks other than the first repeated block in the second signal, wherein the D2R midamble before the blocks other than the first repeated block in the second signal is the same or different.

[0389] As shown in FIG. 15F, the second signal is transmitted on N time domain resources and one frequency domain resource, and a D2R midamble is transmitted immediately before the D2R transmissions other than the first D2R transmission in the second signal, wherein the D2R midambles before the D2R transmissions other than the first repeated block in the second signal are the same or different.

[0390] In some embodiments, the second signal is a bit-level repetition signal.

[0391] For example, the second signal is transmitted on one continuous time domain resource and one frequency domain resource, and a D2R midamble is transmitted immediately before the D2R transmissions other than the first D2R transmission in the second signal, wherein the D2R midambles before the D2R transmissions other than the first D2R transmission in the second signal are the same or different.

[0392] The following describes the postamble of the D2R repetition:

[0393] In some embodiments, the second signal is a signal after the aforementioned addition of CRC check bits, and / or, line coding, and / or, channel coding, and / or, modulation, and / or, other signal processing procedures.

[0394] In some embodiments, the AIoT device transmits a D2R repetition postamble immediately after transmitting the second signal; the D2R repetition postamble can also be referred to as a D2R postamble, etc., which is not limited in the present application.

[0395] For example, the D2R repetition postamble contains at least one of the following information:

[0396] An end indicator part, wherein the end indicator part is used to provide the end of the D2R transmissions of the subsequent second signal;

[0397] a clock acquisition part, wherein the clock acquisition part is configured to provide synchronization / Chip synchronization / Chip duration / Chip length of the second signal before the D2R postamble.

[0398] Thus, the postamble of the D2R repetition can provide the first device with the clock accuracy of the AIoT device, and the clock drift, which helps the first device to consider the clock problem of the AIoT device when scheduling the R2D or D2R resource subsequently, thereby improving the efficiency of resource scheduling.

[0399] In some embodiments, the second signal is a block-level repetition signal.

[0400] As shown in FIG. 15G, the second signal is transmitted on one continuous time domain resource and one frequency domain resource, and the D2R postamble is transmitted immediately after the end of the second signal.

[0401] As shown in FIG. 15H, the second signal is transmitted on one time domain resource and one frequency domain resource, and the D2R postamble is transmitted immediately after each repeated block of the second signal, wherein the D2R postamble after each repeated block of the second signal is the same or different.

[0402] As shown in FIG. 15I, the second signal is transmitted on N time domain resources and one frequency domain resource, and the D2R postamble is transmitted immediately after each D2R transmission of the second signal, wherein the D2R postamble after each D2R transmission of the second signal is the same or different.

[0403] In some embodiments, the second signal is transmitted on N1 time domain resources and N2 frequency domain resources, wherein N1 x N2 = N, and the D2R postamble is transmitted after each D2R transmission of the second signal, wherein the D2R postamble after each D2R transmission of the second signal is the same or different.

[0404] In some embodiments, the preamble, and / or midamble, and / or postamble of the second signal is a sequence, such as a Golay sequence, a ZC sequence, an m-sequence, etc.

[0405] In some embodiments, the second signal is a bit-level repetition of the signal.

[0406] The following describes the frequency shift of the "D2R repetition":

[0407] In some embodiments, the second signal is frequency-shifted by line coding.

[0408] For example, for the case of Reader inventorying AIoT devices or sending commands to AIoT devices, the second signal is frequency-shifted by line coding, and in the above scenarios, the AIoT device needs to receive R2D information related to sending before sending the second signal.

[0409] For example, the order of line coding of the second signal is different within a certain time (e.g., T).

[0410] FIG. 16 is a schematic diagram of line coding of the second signal according to an embodiment of the present application;

[0411] As shown in FIG. 16, the information bit "0" is coded as {10} after Manchester coding with order M = 1, coded as {1010} after Manchester coding with order M = 2, and coded as {10101010} after Manchester coding with order M = 4. The line coding is not limited to Manchester coding, and can also be Miller coding, etc.

[0412] For example, as shown in FIG. 13E, the D2R signal is sent in N frequency domain resources (frequency division), and N different frequency domain resources are implemented by N different orders of line coding.

[0413] The above only describes each step or process related to the present application, but the present application is not limited thereto. The method of the embodiments of the present application can also include other steps or processes, and the specific content of these steps or processes can be referred to the related art.

[0414] The above embodiments only exemplarily describe the embodiments of the present application, but the present application is not limited thereto, and can be appropriately modified on the basis of the above embodiments. For example, each of the above embodiments can be used alone, or one or more of the above embodiments can be combined.

[0415] According to the embodiment of the present application, the second signal is generated according to the first information, which can reduce the time domain and frequency domain offset of the terminal device due to the capability limitation, so that the signal transmitted by the terminal device can be completely received; and the first time domain resource and / or the first frequency domain resource are determined according to the first information, which can avoid the collision of the second signal transmitted by the terminal device with other uplink signals or downlink signals, and improve the efficiency of resource scheduling.

[0416] In addition, the scheme provided in the present application supports the terminal device to transmit repeated signals, so as to improve the signal energy received by the receiving end of the first device, thereby improving the probability that the signal transmitted by the device at the cell edge can be correctly received by the network side, and further improving the uplink coverage of the network.

[0417] Embodiments of the second aspect

[0418] The embodiment of the present application provides a signal processing device. The device may, for example, be a terminal device, or one or more components or assemblies configured in the terminal device. The same content as the embodiments of the first aspect will not be repeated.

[0419] FIG. 17 is a schematic diagram of a signal processing device according to an embodiment of the present application. Since the principle of solving the problem of the signal processing device is the same as that of the method of the embodiments of the first aspect, the specific implementation thereof can be referred to the embodiments of the first aspect, and the same content will not be repeatedly described.

[0420] As shown in FIG. 17, the signal processing device 1700 according to the embodiment of the present application comprises:

[0421] The receiving unit 1701 receives the first information transmitted by the first device, wherein the first information is used to trigger / activate, or schedule / control, or configure the generation and / or transmission of the second signal;

[0422] The processing unit 1702 generates the second signal according to the first information and / or determines the first time domain resource and / or the first frequency domain resource according to the first information, wherein the second signal is a bit-level repeated signal or a block-level repeated signal, and the first time domain resource and / or the first frequency domain resource are at least used for the transmission of the second signal and / or are at least reserved for the transmission of the second signal.

[0423] The embodiments of the receiving unit 1701 and the processing unit 1702 can be referred to 201-202 of the first aspect, and the same content will not be repeatedly described.

[0424] In addition, for the sake of simplicity, only the connection relationship or signal direction between each component or module is exemplarily shown in FIG. 17, but it should be clear to those skilled in the art that various related technologies such as bus connection can be adopted. Each component or module described above can be implemented by hardware facilities such as a processor, a memory, a transmitter, a receiver, etc.; the implementation of the present application is not limited thereto.

[0425] The above embodiments are only exemplarily described, but the present application is not limited thereto, and appropriate modifications can be made on the basis of the above embodiments. For example, each of the above embodiments can be used alone, or one or more of the above embodiments can be combined.

[0426] Embodiments of the third aspect

[0427] The present application provides a signal sending method, which is described from the side of the first device, and the same content as the embodiments of the first aspect will not be described again.

[0428] FIG. 18 is a schematic diagram of the signal sending method according to the embodiments of the present application, as shown in FIG. 18, the method comprises:

[0429] 1801, the network device sends first information to the terminal device, wherein the first information is used to trigger / activate, or schedule / control, or configure the generation and / or sending of the second signal; the terminal device generates the second signal according to the first information and / or determines the first time domain resource and / or the first frequency domain resource according to the first information, wherein the second signal is a bit-level repetition signal or a block-level repetition signal, and the first time domain resource and / or the first frequency domain resource are at least used for transmission of the second signal and / or at least reserved for transmission of the second signal.

[0430] The implementation of 1801 can refer to 201-202 of the first aspect, and the repeated parts will not be described again.

[0431] The above only describes each step or process related to the present application, but the present application is not limited thereto. The method of the embodiments of the present application can also include other steps or processes, and the specific content of these steps or processes can be referred to related technologies.

[0432] The above embodiments are only exemplarily described, but the present application is not limited thereto, and appropriate modifications can be made on the basis of the above embodiments. For example, each of the above embodiments can be used alone, or one or more of the above embodiments can be combined.

[0433] Embodiments of the fourth aspect

[0434] The embodiment of the present application provides a signal sending device. The device can be a first device, or can be one or more components or assemblies arranged in the first device. The same content as the embodiment of the third aspect will not be repeated.

[0435] Fig. 19 is a schematic diagram of the signal sending device of the embodiment of the present application. Since the principle of solving the problem of the signal sending device is the same as that of the method of the embodiment of the third aspect, the specific implementation can refer to the embodiment of the third aspect, and the same content will not be repeatedly described.

[0436] As shown in Fig. 19, the signal sending device 1900 of the embodiment of the present application comprises:

[0437] The sending unit 1901 sends first information to a terminal device, wherein the first information is used for triggering / activating, or scheduling / controlling, or configuring generation and / or sending of a second signal; the terminal device generates the second signal according to the first information and / or determines first time domain resources and / or first frequency domain resources according to the first information, wherein the second signal is a bit-level repetition signal or a block-level repetition signal, and the first time domain resources and / or the first frequency domain resources are at least used for transmission of the second signal and / or are at least reserved for the second signal transmission.

[0438] The above-mentioned various feature embodiments can refer to the embodiments of the first aspect, and will not be repeated here.

[0439] It is worth noting that only the components or modules related to the present application are described above, but the present application is not limited thereto. The signal sending device 1900 of the embodiment of the present application can also comprise other components or modules, and the specific content of these components or modules can refer to related technologies.

[0440] In addition, for the sake of simplicity, only the connection relationship or signal running direction between the components or modules is exemplarily shown in Fig. 19, but those skilled in the art should understand that various related technologies such as bus connection can be adopted. The above-mentioned various components or modules can be realized by hardware facilities such as processors, memories, transmitters, receivers, etc.; the implementation of the present application is not limited thereto.

[0441] The above-mentioned various embodiments only exemplarily illustrate the embodiments of the present application, but the present application is not limited thereto, and can be appropriately modified on the basis of the above-mentioned various embodiments. For example, the above-mentioned various embodiments can be used alone, or one or more of the above-mentioned various embodiments can be combined.

[0442] Embodiment of the fifth aspect

[0443] The embodiment of the present application further provides a communication system, which can refer to FIG. 1, and the same content as the embodiments of the first to fourth aspects will not be described herein again.

[0444] In some embodiments, the communication system 100 can at least include the first device 101 including the signal sending apparatus 1900 in the embodiment of the fourth aspect and / or the terminal device 102 including the signal processing apparatus 1700 in the embodiment of the second aspect, which will not be described herein again.

[0445] The embodiment of the present application further provides a first device, which can be a base station for example, but the present application is not limited thereto, and can also be other network devices.

[0446] FIG. 20 is a structural schematic diagram of the first device according to the embodiment of the present application. As shown in FIG. 20, the first device 2000 can include a processor 2010 (for example, a central processing unit CPU) and a memory 2020; the memory 2020 is coupled to the processor 2010. The memory 2020 can store various data; in addition, it also stores a program 2030 for information processing, and executes the program 2030 under the control of the processor 2010.

[0447] For example, the processor 2010 can be configured to execute the program to implement the method according to the embodiment of the third aspect.

[0448] In addition, as shown in FIG. 20, the first device 2000 can further include a transceiver 2040, an antenna 2050 and the like; the functions of the above-mentioned components are similar to those of the prior art, which will not be described herein again. It is worth noting that the first device 2000 does not necessarily include all the components shown in FIG. 20; in addition, the first device 2000 can also include components not shown in FIG. 20, which can refer to the prior art.

[0449] The embodiment of the present application further provides a terminal device, but the present application is not limited thereto, and can also be other devices.

[0450] FIG. 21 is a schematic diagram of the terminal device according to the embodiment of the present application. As shown in FIG. 21, the terminal device 2100 can include a processor 2110 and a memory 2120; the memory 2120 stores data and programs, and is coupled to the processor 2110. It is worth noting that the diagram is exemplary; other types of structures can also be used to supplement or replace the structure to achieve telecommunication functions or other functions.

[0451] For example, the processor 2110 can be configured to execute the program to implement the method according to the embodiment of the first aspect.

[0452] As shown in FIG. 21, the terminal device 2100 can further include a communication module 2130, an input device 2140, a display 2150, and a power supply 2160. The functions of the above-mentioned components are similar to those of the prior art, and will not be described here. Notably, the terminal device 2100 does not necessarily include all the components shown in FIG. 21, and the above-mentioned components are not essential; in addition, the terminal device 2100 can include components not shown in FIG. 21, and reference can be made to the prior art.

[0453] The embodiments of the present application also provide a computer readable program, which, when executed in the signal sending device or the first device, causes the computer to perform the method of the embodiments of the third aspect.

[0454] The embodiments of the present application also provide a storage medium storing a computer readable program, which causes the computer to perform the method of the embodiments of the third aspect in the signal sending device or the first device.

[0455] The embodiments of the present application also provide a computer readable program, which, when executed in the signal processing device or the terminal device, causes the computer to perform the method of the embodiments of the first aspect.

[0456] The embodiments of the present application also provide a storage medium storing a computer readable program, which causes the computer to perform the method of the embodiments of the first aspect in the signal processing device or the terminal device.

[0457] The above apparatus and method of the present application can be implemented by hardware, or by a combination of hardware and software. The present application relates to a computer readable program, which, when executed by a logic component, can cause the logic component to implement the above-mentioned apparatus or components, or to implement the above-mentioned various methods or steps. The logic component is, for example, a field programmable logic component, a microprocessor, a processor used in a computer, etc. The present application also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.

[0458] The method / apparatus described in conjunction with the embodiments of the present application can be directly embodied as hardware, a software module executed by a processor, or a combination of the two. For example, one or more of the functional blocks shown in the figures and / or a combination of one or more of the functional blocks can correspond to a software module of a computer program flow, or to a hardware module. The software modules can correspond to the respective steps shown in the figures. The hardware modules can be implemented by, for example, fixing the software modules using a field programmable gate array (FPGA).

[0459] The software module can reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. The storage medium can be coupled to the processor such that the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium can be integral to the processor. The processor and the storage medium can reside in an ASIC. The software module can be stored in a memory location that can be accessed by a processor in a mobile terminal, or in a memory location that can be loaded into the mobile terminal using a storage card, for example. For example, if the device (e.g., mobile terminal) uses a MEGA-SIM card or a flash memory device with a large capacity, the software module can be stored in the MEGA-SIM card or the flash memory device.

[0460] One or more of the functional blocks described in the figures can be implemented as a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any appropriate combination of the foregoing, for performing the functions described herein. One or more of the functional blocks described in the figures can also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

[0461] The application has been described in relation to particular embodiments, which are intended in all respects to be illustrative rather than restrictive. Those skilled in the art could readily devise variations and modifications of the application without departing from the scope of the application as defined by the appended claims. Accordingly, the phraseology or terminology employed herein, and not otherwise specified, is for the purpose of description only and is not intended to be limiting.

Claims

1. A signal processing apparatus applied to a terminal device, comprising: a receiving unit configured to receive first information transmitted by a first device, wherein the first information is used to trigger / activate, or schedule / control, or configure generation and / or transmission of a second signal; and a processing unit configured to generate the second signal according to the first information and / or determine first time domain resources and / or first frequency domain resources according to the first information, wherein the second signal is a bit-level repetition signal or a block-level repetition signal, and the first time domain resources and / or the first frequency domain resources are at least used for transmission of the second signal and / or are at least reserved for transmission of the second signal; wherein the processing unit is further configured to generate and / or transmit the second signal according to related parameters of the second signal, wherein the related parameters of the second signal comprise at least one of the following: trigger information / activation information of the second signal; a repetition coefficient of the second signal; first time domain resource related information; and first frequency domain resource related information; wherein the related parameters of the second signal are determined according to the first information and / or a predefined manner; wherein the first information is carried by at least one of the following: layer 1 control information, high layer control information, high layer command, and high layer data; wherein the first time domain resource related information comprises at least one of the following: a starting position of the first time domain resources; an earliest starting position of the first time frequency resources; a latest starting position of the first time frequency resources; an offset of the first time domain resources; a duration of the first time domain resources; a maximum duration of the first time frequency resources; a minimum duration of the first time frequency resources; an ending position of the first time domain resources; an earliest ending position of the first time frequency resources; a latest ending position of the first time frequency resources; and a periodicity of the first time domain resources; wherein the starting position of the first time domain resources / the earliest starting position of the first time domain resources / the latest starting position of the first time domain resources is a position after a first time reference point by a first time offset, and / or the duration of the first time domain resources / the maximum duration of the first time domain resources / the minimum duration of the first time domain resources is a duration between the starting position of the first time domain resources and a second time reference point by a second time offset, and / or the ending position of the first time domain resources / the earliest ending position of the first time domain resources / the latest ending position of the first time domain resources is a position after a third time reference point by a third time offset. 7.The apparatus of claim 6, wherein: the first time reference point comprises at least one of the following: a starting position or an ending position of second time domain resources in which the first information is received; a starting position or an ending position of a first time domain resource before the first time domain resources; a starting position or an ending position of a third time domain resource in which a previous downlink signal or information is received; and / or a starting position or an ending position of time domain resources of a fourth signal; and / or the second time reference point comprises at least one of the following: ​ 2. The apparatus of claim 1, wherein, ​ ​ ​ ​ ​ 3. The apparatus of claim 2, wherein, ​ 4. The apparatus of claim 3, wherein, ​ 5. The apparatus of claim 3, wherein, ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 6. The apparatus of claim 5, wherein, ​ ​ ​ ​ ​ ​ ​ ​ ​ a start position of the first time domain resource; a start position or an end position of a second time domain resource in which the first information is received; a start position or an end position of a first time domain resource preceding the first time domain resource; a start position or an end position of a third time domain resource in which a previous downlink signal or information is received; a start position or an end position of a time domain resource of a fourth signal; and / or, the third time reference point comprises at least one of the following positions: a start position of the first time domain resource; a start position or an end position of a preamble of the second signal; a start position or an end position of a second time domain resource in which the first information is received; a start position or an end position of a first time domain resource preceding the first time domain resource; a start position or an end position of a time domain resource of a fourth signal; a start position or an end position of a third time domain resource in which a previous downlink signal or information is received.

8. The apparatus of claim 5, wherein, the receiving unit and / or the processing unit does not receive and / or transmit a signal within a first minimum time after a start position of the first time domain resource and / or within a second minimum time before and / or after an end position of the first time domain resource.

9. The apparatus of claim 8, wherein, the first minimum time and / or the second minimum time is / are related to at least a time domain drift caused by a terminal device sampling frequency offset (SFO).

10. The apparatus of claim 6, wherein, the processing unit transmits the second signal on at least one fourth time domain resource, the fourth time domain resource carrying the second signal transmitted to the first device, wherein information transmitted on at least one of the fourth time domain resources is the same or different; wherein at least one of the fourth time domain resources coincides with or is the same as at least one of the first time domain resources, and / or at least one of the first time domain resources comprises at least one of the fourth time domain resources.

11. The apparatus of claim 10, wherein, a start position of the fourth time domain resource is not earlier than a start position of the first time domain resource and / or an earliest start position of the first time-frequency resource; and / or an end position of the fourth time domain resource is not later than an end position of the first time domain resource and / or a latest start position of the first time-frequency resource.

12. The apparatus of claim 10, wherein, the processing unit transmits the second signal on at least one of the fourth time domain resources and the signal on the fourth time domain resource comprises a preamble and / or a midamble and / or a postamble, wherein the preamble and / or the midamble and / or the postamble provides synchronization / clock for at least a signal on at least one fourth time-frequency resource following.

13. The apparatus of claim 10, wherein, the receiving unit receives the first information before transmitting the second signal, and the processing unit transmits the second signal on at least one of the fourth time domain resources, wherein the first information comprises scheduling information of at least one of the first time domain resources, and / or the receiving unit receives a fourth signal from the first device between the fourth time domain resources, wherein the first information and / or the fourth signal provides synchronization / clock for at least one of the first time domain resources.

14. The apparatus of claim 13, wherein, the fourth signal comprises at least one of the following signals: the first information; a signal for providing synchronization / clock; a pilot code comprising at least a clock-acquisition part; a signal other than the first information from the first device.

15. The apparatus of claim 5, wherein, The processing unit does not send the second signal in a first time scheduled by the first information, wherein the first time is greater than or equal to a sum of a transmission time of the second signal and a sampling frequency offset (SFO) time.

16. The apparatus of claim 5, wherein, The start position and / or the earliest start position and / or the latest start position and / or the end position and / or the earliest end position and / or the latest end position and / or the duration and / or the longest duration and / or the shortest duration and / or the period and / or the offset are indicated in first time units, the first time units comprising absolute time units or predefined time units.

17. The apparatus of claim 3, wherein, The information related to the first frequency domain resource comprises at least one of the following information: a start position of the first frequency domain resource; an offset of the first frequency domain resource; a size of the first frequency domain resource; a transmission bandwidth of the second signal; a transmission center frequency point of the second signal; a guard bandwidth; a bandwidth number / bandwidth identifier / channel identifier / frequency domain resource unit identifier / frequency domain resource unit index.

18. The apparatus of claim 17, wherein, The start position and / or the offset and / or the size of the first frequency domain resource and / or the transmission bandwidth and / or the transmission center frequency point and / or the guard bandwidth are indicated in first frequency domain resource units.

19. The apparatus of claim 1, wherein, The processing unit further sends a third signal, wherein the third signal requests the first device to send the first information. 20.A signal sending apparatus applied to a first device, comprising: a sending unit configured to send first information to a terminal device, wherein the first information is used for triggering / activating, or scheduling / controlling, or configuring generation and / or sending of a second signal; the terminal device generates the second signal according to the first information and / or determines first time domain resources and / or first frequency domain resources according to the first information, wherein the second signal is a bit-level repetition signal or a block-level repetition signal, and the first time domain resources and / or the first frequency domain resources are used at least for transmission of the second signal and / or are reserved at least for the second signal transmission.

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