Signal transmission method and device

Abstract

The embodiment of the invention provides a signal transmission method and equipment, and the method comprises the steps: transmitting a first query signal or a response signal according to resource position information; wherein the resource position information is acquired based on at least one of the following modes: protocol pre-definition, network equipment pre-configuration, Internet of Things equipment pre-definition, Internet of Things equipment calculation and acquisition, or network equipment indication based on a second query signal. According to the scheme provided by the embodiment of the invention, normal data transmission between the network equipment and the Internet of Things equipment is realized.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and in particular, to a signal transmission method and device. Background Art

[0002] The 3rd Generation Partnership Project (3GPP) defines a new type of Internet of Things (IoT) device, the Ambient Internet of Things (A-IoT). A-IoT devices are low-end IoT devices with low complexity, low cost, and low power consumption. A-IoT devices do not have or only have limited power supply, and are characterized by low energy consumption and low cost. A-IoT includes three types of devices: Device A, Device B, and Device C. Among them, Device A and Device B do not have or have limited power supply, cannot communicate actively, and can only backscatter the received signals and carry information in the backscattered signals. Device C can send signals actively. Due to the characteristics of A-IoT devices such as low power consumption, low complexity, no power supply or limited power supply, the signals and processes used for access and paging in the existing New Radio (NR) system cannot be used for the current communication scenarios of A-IoT devices. Therefore, for those skilled in the art, how to implement the communication of A-IoT devices is a technical problem to be solved. Summary of the Invention

[0003] In view of the problems existing in the prior art, embodiments of the present application provide a signal transmission method and device.

[0004] In a first aspect, an embodiment of the present application provides a signal transmission method applied to an IoT device, including:

[0005] Transmitting a first query signal or a response signal according to resource location information;

[0006] Wherein, the resource location information is obtained based on at least one of the following methods: protocol predefined, network device preconfigured, IoT device predefined, IoT device calculated, or network device indicated based on a second query signal.

[0007] Optionally, according to the signal transmission method of an embodiment of the present application, the transmitting a first query signal or a response signal according to resource location information includes:

[0008] Receiving the first query signal sent by the first device at a first moment according to the resource location information of the first query signal;

[0009] After a first duration at the first moment, send the response signal to the first device according to the resource location information of the response signal;

[0010] Or,

[0011] Send a first query signal to a second device at a second moment according to the resource location information of the first query signal;

[0012] Receive the response signal sent by the second device after a second duration at the second moment according to the resource location information of the response signal.

[0013] Optionally, according to the signal transmission method of an embodiment of the present application, the resource location information includes at least one of resource location information in time domain, frequency domain, and space domain;

[0014] The predefined manner includes at least one of the following:

[0015] Through signaling configuration of a network device, configured before the Internet of Things device leaves the factory, and configured before the Internet of Things device accesses the network.

[0016] Optionally, according to the signal transmission method of an embodiment of the present application, the resource location information is at least one of M sub-channels; the M sub-channels are obtained by dividing at least one of time domain, frequency domain, and space domain resources; or,

[0017] The resource location information is predefined time domain resource location information, and the time domain resource location information includes at least one of the following: frame location information, sub-frame location information, time slot location information, symbol location information.

[0018] Optionally, according to the signal transmission method of an embodiment of the present application, before transmitting the first query signal or the response signal according to the resource location information, it further includes:

[0019] Obtain the resource location information according to the target identifier and the predefined rule; or,

[0020] Obtain the resource location information according to the target identifier by using the first function relationship;

[0021] The target identifier includes at least one of the following: the physical identifier of the Internet of Things device, the group identifier of the Internet of Things device, cell identifier, third-party server identifier.

[0022] Optionally, according to the signal transmission method of an embodiment of the present application, the obtaining the resource location information according to the target identifier by using the first function relationship includes:

[0023] Determine the starting resource location of the resource location information according to the target identifier by using the first functional relationship.

[0024] Optionally, according to the signal transmission method of an embodiment of the present application, the step of determining the starting resource location of the resource location information according to the target identifier by using the first functional relationship includes:

[0025] Within a first time window, obtain the starting resource location of at least one of the time domain, frequency domain, and spatial domain resources according to the target identifier; the starting resource location is based on at least one of a time domain unit, a frequency domain unit, and a spatial domain unit.

[0026] Optionally, according to the signal transmission method of an embodiment of the present application, the target identifier and the starting resource location are in a one-to-one correspondence relationship, or;

[0027] The target identifier and the starting resource location are in a many-to-many correspondence relationship.

[0028] Optionally, according to the signal transmission method of an embodiment of the present application, the first time window is the transmission period of the Internet of Things device, or any predefined time period, or a time period configured by the network device.

[0029] Optionally, according to the signal transmission method of an embodiment of the present application, when the resource location information is the resource location information of the response signal, and the resource location information of the response signal is indicated by a second query signal, the second query signal is used to indicate at least one of the following:

[0030] The absolute location of at least one of the time domain, frequency domain, and spatial domain resource location information of the response signal;

[0031] The relative location of at least one of the time domain, frequency domain, and spatial domain resource location information of the response signal relative to the first query signal or the reference signal;

[0032] The first timing information for sending the response signal;

[0033] The information of the second time window for sending the response signal;

[0034] Wherein, the first timing information is used to indicate that the response signal is sent after the end of the first timing information, or the first timing information is the maximum timing information;

[0035] The information of the second time window is used to indicate that the response signal is sent within the second time window.

[0036] Optionally, according to the signal transmission method of an embodiment of the present application, transmitting the response signal includes:

[0037] When the first timing information is the maximum timing information, select second timing information according to a predefined rule;

[0038] After the second timing information ends, transmit the response signal.

[0039] Optionally, according to the signal transmission method of an embodiment of the present application, the sending of the response signal to the first device includes:

[0040] Send the response signal to the first device by means of backscattering or direct transmission.

[0041] Optionally, according to the signal transmission method of an embodiment of the present application, the response signal carries a sequence generated according to first information and a predefined rule, and the first information includes at least one of the following: the physical identifier of the Internet of Things device, the grouping identifier of the Internet of Things device, the cell identifier;

[0042] The sequence further includes the first timing information indicated by the second query signal.

[0043] Optionally, according to the signal transmission method of an embodiment of the present application, the first query signal includes at least one of the following: an excitation signal, an energy harvesting signal, energy storage information, information collection indication information, reference signal transmission indication information, synchronization information, timing information, grouping information, function classification information, application scenario information, priority information, access parameter configuration information, paging parameter configuration information, network device information, Internet of Things device information, Internet of Things device grouping information, activation signaling, deactivation signaling, the threshold for the Internet of Things device to reflect or transmit a signal, acknowledgment ACK information;

[0044] The response signal includes at least one of the following:

[0045] Internet of Things device information, ACK information, information sent by the Internet of Things device;

[0046] Wherein, the Internet of Things device information includes at least one of the following: the identifier of the Internet of Things device, the grouping identifier of the Internet of Things device.

[0047] In a second aspect, an embodiment of the present application further provides a signal transmission method, which is applied to a first device and includes:

[0048] Transmit a first query signal according to resource location information;

[0049] Wherein, the resource location information is obtained based on at least one of the following methods: protocol predefined, network device preconfigured, the Internet of Things device predefined, the Internet of Things device calculated and obtained, or the network device based on the indication of the second query signal.

[0050] In a third aspect, an embodiment of the present application further provides an Internet of Things device, including a memory, a transceiver, and a processor, where:

[0051] The memory is used to store a computer program; the transceiver is used to transmit and receive data under the control of the processor; the processor is used to read the computer program in the memory and implement the steps of the signal transmission method described in the first aspect above.

[0052] In a fourth aspect, an embodiment of the present application further provides a first device, including a memory, a transceiver, and a processor, where:

[0053] The memory is used to store a computer program; the transceiver is used to transmit and receive data under the control of the processor; the processor is used to read the computer program in the memory and implement the steps of the signal transmission method described in the second aspect above.

[0054] In a fifth aspect, an embodiment of the present application further provides a signal transmission device, applied to an Internet of Things device, including:

[0055] A first processing unit, configured to transmit a first query signal or a response signal according to resource location information;

[0056] Wherein, the resource location information is obtained based on at least one of the following methods: protocol predefined, network device preconfigured, Internet of Things device predefined, Internet of Things device calculated, or network device indicated based on a second query signal.

[0057] In a sixth aspect, an embodiment of the present application further provides a signal transmission device, applied to a first device, including:

[0058] A second processing unit, configured to transmit a first query signal according to resource location information;

[0059] Wherein, the resource location information is obtained based on at least one of the following methods: protocol predefined, network device preconfigured, Internet of Things device predefined, Internet of Things device calculated, or network device indicated based on a second query signal.

[0060] In a seventh aspect, an embodiment of the present application further provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, and the computer program is used to cause the processor to execute the steps of the signal transmission method described in the first aspect or the second aspect above.

[0061] In an eighth aspect, an embodiment of the present application further provides a non-transitory readable storage medium, where the non-transitory readable storage medium stores a computer program, and the computer program is used to cause a processor to execute the signal transmission method described in any one of the first aspect or the second aspect above.

[0062] In a ninth aspect, an embodiment of the present application further provides a communication device, in which a computer program is stored, and the computer program is used to cause the communication device to execute the signal transmission method according to any one of the first aspect or the second aspect as described above.

[0063] In a tenth aspect, an embodiment of the present application further provides a chip product, in which a computer program is stored, and the computer program is used to cause the chip product to execute the signal transmission method according to any one of the first aspect or the second aspect as described above.

[0064] The signal transmission device and equipment provided by the embodiments of the present application transmit a first query signal or a response signal according to resource location information; wherein, the resource location information is obtained based on at least one of the following methods: protocol predefined, network device preconfigured, the Internet of Things device predefined, the Internet of Things device calculates and obtains, or the network device is instructed based on a second query signal, realizing that the Internet of Things device transmits a first query signal or a response signal according to resource location information, that is, realizing the communication of the Internet of Things device. The resource location information can be obtained through a variety of implementations, with greater flexibility and lower complexity. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0066] Figure 1 is one of the schematic flowcharts of the signal transmission method provided by the embodiment of the present application;

[0067] Figure 2 is a schematic diagram of the sub-channel division principle of the signal transmission method provided by the embodiment of the present application;

[0068] Figure 3 is a schematic diagram of the cycle configuration principle of the signal transmission method provided by the embodiment of the present application;

[0069] Figure 4 is a schematic diagram of the corresponding relationship principle between the target identifier and the starting resource location of the signal transmission method provided by the embodiment of the present application;

[0070] Figure 5 is one of the schematic diagrams of the principle of transmitting and / or receiving the first query signal within the first time window of the signal transmission method provided by the embodiment of the present application;

[0071] Figure 6It is the second schematic diagram of the principle for transmitting and / or receiving the first query signal of the signal transmission method provided by the embodiments of the present application within the first time window;

[0072] Figure 7 It is the third schematic diagram of the principle for transmitting and / or receiving the first query signal of the signal transmission method provided by the embodiments of the present application within the first time window;

[0073] Figure 8 It is the first schematic diagram of the principle for on-demand transmitting / receiving the first query signal of the signal transmission method provided by the embodiments of the present application;

[0074] Figure 9 It is the second schematic diagram of the principle for on-demand transmitting / receiving the first query signal of the signal transmission method provided by the embodiments of the present application;

[0075] Figure 10 It is the schematic diagram of the association rule of the signal transmission method provided by the embodiments of the present application;

[0076] Figure 11 It is the schematic diagram of the time domain relative position offset of the response signal relative to the query signal of the signal transmission method provided by the embodiments of the present application;

[0077] Figure 12 It is the first schematic diagram of the timing information of the response signal relative to the query signal of the signal transmission method provided by the embodiments of the present application;

[0078] Figure 13 It is the second schematic diagram of the timing information of the response signal relative to the query signal of the signal transmission method provided by the embodiments of the present application;

[0079] Figure 14 It is the schematic diagram of the response signal transmitted according to the indicated time window information of the signal transmission method provided by the embodiments of the present application;

[0080] Figure 15 It is the second schematic diagram of the flow of the signal transmission method provided by the embodiments of the present application;

[0081] Figure 16 It is the schematic diagram of the structure of the Internet of Things device provided by the embodiments of the present application;

[0082] Figure 17 It is the schematic diagram of the structure of the first device provided by the embodiments of the present application;

[0083] Figure 18 It is the first schematic diagram of the structure of the signal transmission device provided by the embodiments of the present application;

[0084] Figure 19 It is the second schematic diagram of the structure of the signal transmission device provided by the embodiments of the present application. Detailed implementation manners

[0085] In the embodiments of the present application, the term "and / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0086] In the embodiments of the present application, the term "plurality" refers to two or more, and other quantifiers are similar thereto.

[0087] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0088] The technical solutions provided by the embodiments of the present application can be applied to a variety of systems, such as 5G systems or 6G systems, etc. For example, the applicable systems can be global system of mobile communication (GSM) systems, code division multiple access (CDMA) systems, Wideband Code Division Multiple Access (WCDMA) general packet radio service (GPRS) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, long term evolution advanced (LTE-A) systems, universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) systems, 5G New Radio (NR) systems, etc. Both terminal devices and network devices are included in these various systems. The system may also include a core network part, such as an evolved packet system (EPS), 5G system (5GS), etc.

[0089] The terminal device involved in the embodiments of the present application can be a device that provides voice and / or data connectivity to users, such as a handheld device with wireless connection capabilities, or other processing devices connected to a wireless modem, etc. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device can be called a user equipment (UE). The wireless terminal device can communicate with one or more core networks (CNs) via a radio access network (RAN). The wireless terminal device can be a mobile terminal device, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal device. For example, it can be a portable, pocket-sized, handheld, computer-integrated, or vehicle-mounted mobile device that exchanges language and / or data with the radio access network. For example, devices such as personal communication service (PCS) phones, cordless phones, session initiated protocol (SIP) phones, wireless local loop (WLL) stations, and personal digital assistants (PDAs). The wireless terminal device can also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, an access point, a remote terminal, an access terminal, a user terminal, a user agent, a user device, which is not limited in the embodiments of the present application.

[0090] The network device involved in the embodiments of this application can be a base station or a core network device. The base station can include multiple cells that provide services to terminals. Depending on the specific application scenario, the base station can also be referred to as an access point, or it can be a device in the access network that communicates with wireless terminal devices through one or more sectors on the air interface, or other names. The network device can be used to mutually replace the received air frames and Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, where the rest of the access network can include an Internet Protocol (IP) communication network. The network device can also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of this application can be a network device (Base Transceiver Station, BTS) in a Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), or it can be a network device (NodeB) in a Wide-band Code Division Multiple Access (WCDMA), or it can also be an evolved network device (evolutional Node B, eNB or e-NodeB) in a Long Term Evolution (LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), or it can be a Home evolved Node B (HeNB), a relay node, a femto, a pico, etc. This is not limited in the embodiments of this application. In some network architectures, the network device can include a centralized unit (centralized unit, CU) node and a distributed unit (distributed unit, DU) node, and the centralized unit and the distributed unit can also be geographically separated.In some embodiments, the core network device may include, but is not limited to, at least one of the following: core network node, core network function, Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Network Repository Function (NRF), Network Exposure Function (NEF), Application Function (AF), Sensing Requirement Function (SRF), Location Management Function (LMF), etc.

[0091] To facilitate a clearer understanding of the technical solutions provided by the embodiments of the present application, some related knowledge is introduced as follows.

[0092] 3GPP defines three types of A-IoT devices, including whether they have energy storage capabilities and the ability to transmit signals independently:

[0093] 1. A-IoT device types and characteristics

[0094] 3GPP classifies A-IoT devices into the following three categories based on whether they have energy storage capabilities and the ability to generate signals independently:

[0095] Device A: No energy storage capabilities, no ability to generate signals independently, and transmits signals through backscattering;

[0096] Device B: Has energy storage capabilities, no ability to generate signals independently, transmits signals through backscattering, and the stored energy can be used to amplify the power of the backscattered signals;

[0097] Device C: It has energy storage capacity, the ability to generate signals independently, and uses radio frequency devices for signal transmission.

[0098] 2. Backscatter communication

[0099] A backscatter communication system consists of an excitation signal source and a signal reflection device, generally composed of a reader and a reflection tag. The reader is used to generate radio frequency excitation signals, and the reflection tag is composed of devices that can reflect radio frequency signals. The reader sends radio frequency signals to the reflection tag, and the reflection tag receives the transmission signals from the excitation signal source and reflects radio frequency signals. By changing the load impedance of the reflection tag antenna, information is modulated into the backscattered signal. When the reflection coefficient is configured as the first reflection coefficient, the energy of the excitation signal is completely absorbed by the tag antenna; when the reflection coefficient is configured as the second reflection coefficient, the excitation signal is completely reflected; when the reflection coefficient is configured as the third reflection coefficient, the excitation signal is partially absorbed and partially reflected.

[0100] 3. Possible receiver architectures for A-IoT

[0101] For A-IoT devices, due to their extremely simple receiver structures, they may only include some simple receiver components, such as a receiver architecture based on On-Off Keying (OOK) signals. Limited by the receiver's inability to perform Inverse Fast Fourier Transform (IFFT) / Fast Fourier Transform (FFT) operations, A-IoT devices cannot complete the reception and processing of configuration parameters for access and paging, and thus cannot complete the access and paging processes.

[0102] 4. New Radio (NR) random access

[0103] In the NR system, through random access, the base station will allocate a unique identity for the User Equipment (UE, also known as the terminal or terminal device), and at the same time, it can also know which terminal devices are accessing. The random access process includes:

[0104] A. The UE sends a random access preamble sequence (i.e., Message 1, Msg1) on the Physical Random Access Channel (PRACH).

[0105] B. The UE receives a Random Access Response (RAR) message (i.e., Message 2, Msg2) on the Physical Downlink Control Channel (PDCCH) / Physical Downlink Shared Channel (PDSCH);

[0106] C. The UE sends Message 3 (Msg3) on the Physical Uplink Shared Channel (PUSCH);

[0107] D. The UE receives a contention resolution message (i.e., Message 4, Msg4) on the PDSCH channel.

[0108] Before performing the random access procedure, the terminal obtains a set of Synchronization Signal / PBCH block (SSB) indexes, physical layer time-frequency resources, random access preamble sequence format, and parameters of the random access preamble sequence set through the system broadcast message. Then, the UE generates a random access preamble sequence according to the obtained information and initiates random access on the corresponding physical layer random access time-frequency resources.

[0109] The base station detects the PRACH. If the base station detects a preamble sequence, it feeds back the corresponding random access response (RAR) information on the PDCCH / PDSCH. After the terminal sends the random access preamble sequence, it detects the RAR information fed back on the downlink PDCCH / PDSCH within a RAR time window. If the corresponding RAR information is detected, it means that the random access preamble sequence sent by the UE is detected by the base station. The RAR information also contains the uplink timing advance adjustment amount of the UE. The terminal can obtain uplink synchronization according to this adjustment amount, and then can send an uplink resource scheduling request message to perform subsequent data transmission.

[0110] Furthermore, the random access procedure further includes:

[0111] A. The terminal sends Message 1, which contains not only the random access preamble sequence but also uplink data;

[0112] B. The base station sends Message 2, which, in addition to including the random access preamble identifier and the timing advance command word (TAC), also includes the UE ID or the cell radio network temporary identifier (C-RNTI) for contention resolution.

[0113] 5. NR Paging Procedure

[0114] In the NR system, the base station locates the terminal through paging, can detect the reachability of the UE, and implement the following, including: triggering the UE radio resource control (RRC) connection establishment process, triggering the UE RRC recovery, notifying the UE to update the system message or receive the earthquake and tsunami warning service (ETWS) / commercial mobile alert service (CMAS) notification. There are two paging trigger methods in NR, core network trigger and base station trigger.

[0115] First, the standard defines the monitoring of paging in the radio resource control idle or inactive (RRC-Idle / Inactive) state. The UE calculates the positions of the paging frame (PF) and the paging occasion (PO) according to the parameter configuration. At the PO moment, the UE monitors the downlink control information (DCI) scrambled by the paging radio network temporary identifier (Paging-RNTI, P-RNTI) in the paging search space (Search Space, SS), then performs demodulation and decoding to obtain the PDSCH carrying the paging message. After demodulating and decoding the PDSCH, the UE obtains the list information of the UEs that have sent the paging message, queries the list, and if the UE is in the list, obtains the paging message carried by the PDSCH; otherwise, the UE does not obtain the paging message.

[0116] Second, the monitoring of the PDCCH of paging is scrambled by the P-RNTI. The P-RNTI is shared by all UEs. The base station configures the monitoring period, the number of paging radio frames in each period, and the number of POs in each paging radio frame. At the PO moment, the UE needs to listen for paging.

[0117] Furthermore, considering the multiple antennas of the NR system, multi-beam transmission and reception need to be considered for paging transmission and reception.

[0118] 6. NR Transmission Signal Resource Configuration Method

[0119] Resource allocation method for NR transmission signals, including: static, semi-static, and dynamic resource allocation methods. Among them, the static resource allocation method can include the configuration method based on RRC signaling and the configuration method based on broadcast signaling; among them, the configuration method based on dynamic signaling includes the configuration methods based on dynamic scheduling signaling and MAC-CE signaling.

[0120] Among them, the broadcast signaling-based configuration includes cell-level parameter configuration information, such as system frame number, subcarrier spacing configuration, SSB subcarrier offset configuration, DMRS-TypeA position configuration, PDCCH common control resource set (CORESET) configuration, cell barred configuration, intra-frequency selection configuration, and reserved bits.

[0121] Among them, the RRC signaling-based configuration method includes configuration through RRC information elements. Further, it includes DL and UL transmission resource location information configuration; it includes resource location information configuration for data transmission and / or control signaling transmission, resource location configuration for reference signal transmission, configuration of UE behavior parameters, etc. UE behavior includes channel measurement, radio resource management (RRM) measurement, etc.

[0122] Among them, the dynamic signaling configuration method includes configuration information on the resource locations for DL and UL dynamic transmissions, such as the resource location configuration information for PDSCH and PUSCH data transmissions.

[0123] 7. Resource allocation method for PRACH

[0124] The specific frequency-domain location of PRACH is notified separately by 2-bit signaling. The number of frequency-division multiplexing (FDM) PRACH occasions within the same PRACH slot takes values of 1, 2, 4, and 8. Among them, the reason for the maximum value of 8 is to consider increasing the number of available RO resources through frequency-division multiplexing under the condition of SSB to (RACH Occasion, RO) mapping.

[0125] Specifically, it is configured by the following parameters. Each element included in the PRACH configuration table is as follows:

[0126] (1) PRACH configuration index (indicated by 8 bits): 0 - 255;

[0127] (2) PRACH preamble format;

[0128] (3) Configuration period: {10, 20, 40, 80, 160} ms;

[0129] (4) SFN mod configuration period;

[0130] (5) For frequency bands below 6 GHz, use subframe numbering;

[0131] (5-1) Based on a 15 kHz sub-carrier spacing (SCS), the granularity is 1 ms;

[0132] (5-2) For short sequences and 30 kHz SCS, the number of PRACH time slots in a subframe can be 1 or 2;

[0133] When there is only one RACH time slot, use the second PRACH time slot;

[0134] (5-3) For short sequences and 15 kHz SCS, the number of PRACH time slots in a subframe is 1;

[0135] (6) For frequency bands above 6 GHz, use PRACH time slot numbering;

[0136] (6-1) Based on 60 kHz SCS, the granularity is 0.25 ms;

[0137] (6-2) For 120 kHz SCS, the number of PRACH time slots within 0.25 ms can be 1 or 2;

[0138] When there is only one RACH time slot, use the second PRACH time slot;

[0139] (7) For 60 kHz SCS, the number of PRACH time slots within 0.25 ms is 1;

[0140] (7-1) Starting symbol index (Msg1 SCS for short sequences, 15 kHz for long sequences); (8) Number of time-domain PRACH occasions within a PRACH time slot.

[0141] In the prior art, random access in NR is achieved through RACH, and the specific resource locations are configured by the above-mentioned related configuration methods and parameters. For A-IoT, its component structure is simple and the signal processing method is simple, so it cannot adopt NR or LTE, or the existing access procedures and the corresponding resource configurations of access parameters. Therefore, it is necessary to design an access procedure and a resource configuration method for the access resources corresponding to the procedure for A-IoT devices.

[0142] Based on the above problems, the current random access process and paging in the NR system are not applicable to A-IoT devices; thus, further design of the random access and paging for A-IoT devices is required; furthermore, a further resource allocation method needs to be given. The present invention provides a method to solve the resource allocation method for A-IoT access and paging in the case of low-power requirements, low-complexity requirements, and low-end A-IoT devices with simple receiving and transmitting links.

[0143] Figure 1 is one of the flow diagrams of the signal transmission method provided by an embodiment of the present application. As Figure 1 shown, an embodiment of the application provides a signal transmission method, and its execution subject can be an Internet of Things device, and the Internet of Things device can be, for example, an A-IoT device. The method includes:

[0144] Step 101: Transmit a first query signal or a response signal according to the resource location information;

[0145] Wherein, the resource location information is obtained based on at least one of the following methods: protocol predefined, network device preconfigured, the Internet of Things device predefined, the Internet of Things device calculated and obtained, or the network device indicated based on a second query signal.

[0146] Specifically, the resource location information can be configured, for example, by the protocol predefined method, network device preconfiguration, Internet of Things device predefined method, or obtained by the Internet of Things device calculation, or indicated by the network device based on a second query signal.

[0147] The Internet of Things device transmits a first query signal or a response signal based on the resource location information, such as sending / receiving a first query signal or a response signal.

[0148] Optionally, the network device or the Internet of Things device configures at least one resource in the common time-frequency space through a predefined method for the Internet of Things device to send and / or receive a first query signal or a response signal.

[0149] In the above embodiment, through the predefined method, network device preconfiguration, or the second query signal indication method, the resource location information of at least one resource in the time-frequency space of the first query signal and / or the response signal is configured to indicate the Internet of Things device to send and / or receive the first query signal and / or the response signal, thereby realizing the normal data transmission of the Internet of Things device.

[0150] The method according to the embodiment of the present application transmits a first query signal or a response signal according to resource location information; wherein, the resource location information is obtained based on at least one of the following methods: protocol predefined, network device preconfigured, the Internet of Things device predefined, the Internet of Things device calculates and obtains, or the network device is instructed based on a second query signal, realizing that the Internet of Things device transmits a first query signal or a response signal according to resource location information, that is, realizing the communication of the Internet of Things device. The resource location information can be obtained through multiple implementations, with greater flexibility and lower complexity.

[0151] Optionally, the resource location information includes at least one of resource location information in the time domain, frequency domain, and spatial domain;

[0152] The predefined method includes at least one of the following:

[0153] Configured through the signaling of the network device, configured before the Internet of Things device leaves the factory, or configured before the Internet of Things device accesses the network.

[0154] The signaling configuration is, for example, through high-layer signaling, non-access stratum (NAS) signaling, etc.

[0155] Among them, the configuration through the signaling of the network device can be a method of preconfiguring for the network device.

[0156] Optionally, the transmitting of the first query signal or the response signal according to the resource location information includes:

[0157] Receiving the first query signal sent by the first device at the first moment according to the resource location information of the first query signal;

[0158] Sending the response signal to the first device after the first duration at the first moment according to the resource location information of the response signal;

[0159] Or,

[0160] Sending a first query signal to a second device at a second moment according to the resource location information of the first query signal;

[0161] Receiving the response signal sent by the second device after the second duration at the second moment according to the resource location information of the response signal.

[0162] Optionally, the first device can be a network device, a terminal, a relay node, etc. Optionally, the second device can be the same as or different from the first device.

[0163] Specifically, the Internet of Things device receives a first query signal sent by a first device at a first moment, and sends a response signal to the first device after a first duration at the first moment. The first duration is, for example, N1 time units, where N is an integer greater than 0. The response signal is sent, for example, by backscattering or direct transmission.

[0164] The Internet of Things device sends a first query signal to a second device at a second moment, and receives a response signal sent by the second device after a second duration at the second moment. The second duration is, for example, N2 time units, where N is an integer greater than 0.

[0165] Optionally, the time unit can be an absolute time unit or a relative time unit. The absolute time unit can be a microsecond, a millisecond, or a second. The relative time unit can be a wireless frame, a subframe, a time slot, a symbol, or a specific time unit, such as an A-IoT processor time unit.

[0166] Optionally, the resource location information is at least one of M sub-channels. The M sub-channels are obtained by partitioning at least one of the time domain, frequency domain, and spatial domain resources; or,

[0167] The resource location information is predefined time domain resource location information, and the time domain resource location information includes at least one of the following: the position information of a frame, a subframe, a time slot, and a symbol.

[0168] Optionally, the Internet of Things device calculates and obtains it, which can be specifically implemented in the following ways:

[0169] Obtain the resource location information according to the target identifier and a predefined rule; or,

[0170] Obtain the resource location information according to the target identifier by using the first function relationship;

[0171] The target identifier includes at least one of the following: the physical identifier of the Internet of Things device, the group identifier of the Internet of Things device, the cell identifier, and the third-party server identifier.

[0172] Specifically, the Internet of Things device obtains resource location information according to a unique target identifier. Optionally, the physical identifier of the Internet of Things device can be a physical address.

[0173] Optionally, the obtaining the resource location information according to the target identifier by using the first function relationship includes:

[0174] Determine the starting resource location of the resource location information according to the target identifier by using the first function relationship.

[0175] Optionally, within the first time window, obtain the starting resource position of at least one of the time domain, frequency domain, and spatial domain resources according to the target identifier; the starting resource position is based on at least one of the starting resource positions of time domain units, frequency domain units, and spatial domain units.

[0176] Optionally, the target identifier and the starting resource position have a one-to-one correspondence, or;

[0177] The target identifier and the starting resource position have a many-to-many correspondence.

[0178] Optionally, the first time window is the transmission period of the Internet of Things device, or any predefined time period, or the time period configured by the network device.

[0179] Optionally, when the resource position information is the resource position information of the response signal, and the resource position information of the response signal is indicated by a second query signal, the second query signal is used to indicate at least one of the following:

[0180] The absolute position of at least one of the resource position information in the time domain, frequency domain, and spatial domain of the response signal;

[0181] The relative position of at least one of the resource position information in the time domain, frequency domain, and spatial domain of the response signal relative to the first query signal or the reference signal;

[0182] The first timing information for sending the response signal;

[0183] The information of the second time window for sending the response signal;

[0184] Wherein, the first timing information is used to indicate that the response signal is sent after the end of the first timing information, or the first timing information is the maximum timing information;

[0185] The information of the second time window is used to indicate that the response signal is sent within the second time window.

[0186] Optionally, transmitting the response signal can be specifically implemented in the following manner:

[0187] When the first timing information is the maximum timing information, select the second timing information according to a predefined rule;

[0188] After the end of the second timing information, transmit the response signal.

[0189] Optionally, the response signal carries a sequence generated according to the first information and a predefined rule, and the first information includes at least one of the following: the physical identifier of the Internet of Things device, the group identifier of the Internet of Things device, and the cell identifier;

[0190] The sequence further includes first timing information indicated by the second query signal.

[0191] Optionally, the first query signal includes at least one of the following: an excitation signal, an energy harvesting signal, energy storage information, information collection indication information, reference signal transmission indication information, synchronization information, timing information, packet information, function classification information, application scenario information, priority information, access parameter configuration information, paging parameter configuration information, network device information, Internet of Things (IoT) device information, IoT device grouping information, activation signaling, deactivation signaling, threshold for an IoT device to reflect or transmit a signal, acknowledgment (ACK) information.

[0192] The response signal includes at least one of the following:

[0193] IoT device information, ACK information, information sent by an IoT device.

[0194] Wherein, the IoT device information includes at least one of the following: an identifier of an IoT device, a grouping identifier of an IoT device.

[0195] Wherein, the second query signal is similar to the first query signal and will not be elaborated here.

[0196] Example 1: A network device (such as a base station / core network device) configures resource location information of the first query signal and / or the response signal through predefined configuration.

[0197] Step 1: The network device configures resource location information of at least one of the time domain, frequency domain, and spatial domain of the query signal / response signal through a predefined manner (such as pre-configuration); optionally, the terminal configures resource location information of at least one of the time domain, frequency domain, and spatial domain of the first query signal / response signal through a predefined manner.

[0198] Optionally, the sending node of the first query signal may include at least one of the following: a network device (such as a base station), or other nodes that can send signals, such as a relay node, a terminal node, etc. In the embodiments of the present application, the network device is used to represent the sending node of the first query signal.

[0199] The predefined includes at least one of the following: defined through signaling of a network device (such as NAS signaling), or configured and defined when an A-IoT device leaves the factory, or configured and defined before an A-IoT device accesses the network.

[0200] Optionally, the network device configures resource location information of the first query signal and / or the response signal through a predefined manner, including:

[0201] The A-IoT device defines at least one resource location information in time-frequency-space in a predefined manner, and the A-IoT device sends and / or receives a first query signal and / or a response signal at at least one resource location in the predefined time-frequency-space; at least one resource location information in the defined time-frequency-space may include at least one of the following:

[0202] 1) Divide at least one resource in time-frequency-space into M sub-channels, and at least one resource in the time-frequency-space where the A-IoT device sends and / or receives a response signal and / or a query signal can be configured as at least one of the M sub-channels; the sub-channel is composed of at least one of specific time-domain, frequency-domain, and space-domain units; as Figure 2 shown;

[0203] 2) Predefine the time-domain resource location of the query signal as the location of a specific radio frame, sub-frame, time slot, or symbol. For example, the time-domain resource location is the starting position of X radio frames, or the starting position of the specified Y sub-frames in X radio frames, or the starting position of the Z symbols in the specified Y sub-frames in X radio frames;

[0204] wherein, M, X, Y, and Z are all integers greater than 0, and can be predefined or configured by a network device.

[0205] At least one resource in the predefined time-frequency-space can be periodic, triggered, or aperiodic; Figure 3 is configured as periodic.

[0206] Step 2: The network device sends a first query signal and / or receives a response signal according to the resource location information;

[0207] The network device obtains at least one resource location information in the time-frequency-space for sending and / or receiving a first query signal and / or a response signal in a predefined manner, and sends a first query signal and / or receives a response signal according to the resource configuration information.

[0208] Step 3: The terminal obtains the resource location information;

[0209] Optionally, the terminal is an A-IoT device, or a terminal such as a mobile phone, tablet, or computer including A-IoT function. In the embodiments of the present application, the terminal and the A-IoT device are not distinguished.

[0210] The terminal obtains the resource location information in the predefined manner as described in Step 1, which will not be elaborated here.

[0211] Step 4: The terminal sends and / or receives a response signal / first query signal according to the resource location information in Step 1 or Step 2;

[0212] Specifically, the terminal obtains at least one of the time-frequency-space resource location configurations for receiving and / or transmitting the first query signal and / or the response signal through a predefined method according to step 3, and receives the first query signal and / or transmits the response signal according to the resource configuration information.

[0213] Example 2: The A-IoT device obtains the resource location information of the first query signal and / or the response signal through calculation;

[0214] Step 1: The network device obtains at least one of the time domain, frequency domain, and spatial domain resource location information of the first query signal / response signal according to a predefined method; optionally, the terminal obtains at least one of the time domain, frequency domain, and spatial domain resource configuration information of the first query signal / response signal according to a predefined method;

[0215] The network device obtains at least one of the time domain, frequency domain, and spatial domain resource location information of the first query signal / response signal according to a predefined method, including:

[0216] The network device calculates and obtains at least one of the time-frequency-space resource location information for transmitting and / or receiving the query signal and / or the response signal corresponding to the A-IoT device through the target identifier;

[0217] The target identifier includes at least one of the following: the physical identifier (such as the physical address) of the A-IoT device, the group identifier of the A-IoT device, the cell identifier, and the third-party server identifier;

[0218] The obtaining of at least one of the time-frequency-space resource location information for transmitting and / or receiving the first query signal corresponding to the A-IoT device according to the target identifier includes:

[0219] According to the target identifier and a predefined rule, calculate at least one of the time-frequency-space resource location information for transmitting and / or receiving the first query signal / response signal; specifically:

[0220] According to the target identifier, calculate the starting resource location information of at least one of the time-frequency-space resource location information for transmitting and / or receiving the first query signal;

[0221] Or, the starting resource position information of the first query signal transmission = the first functional relationship (target identifier); where the first functional relationship can represent that within the first time window, at least one starting resource position in the time domain, frequency domain, and space domain where the transmission starts can be obtained according to the target identifier; at least one starting resource position in the starting time domain, frequency domain, and space domain can be the starting resource position based on at least one of a time domain unit, a frequency domain unit, and a space domain unit; the time domain unit can be an absolute time unit or a relative time unit; the absolute time unit can be a microsecond, a millisecond, or a second; the relative time unit can be a radio frame, a subframe, a time slot, a symbol, a specific time unit, for example, an A-IoT processor time unit;

[0222] Exemplarily, the predefined rule is that according to the grouping identifier ID of the A-IoT device, odd A-IoT device IDs belong to group 1, and even A-IoT device IDs belong to group 2. Group 1 corresponds to the starting position of odd radio frames, and group 2 corresponds to the starting position of even radio frames. Then the base station sends the first query signal to group 1 at the starting position of odd radio frames, or receives the response signal of group 1 at the starting position of odd radio frames;

[0223] Optionally, at least one starting resource position in the starting time-frequency-space and the target identifier can be in a one-to-one correspondence, or a one-to-many mapping relationship, or a many-to-many mapping relationship. For example, at least one starting resource position in the starting time-frequency-space can randomly select a starting time unit within the time window, so the starting positions selected by different A-IoTs within the window can be the same or different; as Figure 4 shown, the unique transmission and / or reception resource position of the first query signal / response signal corresponding to the target identifier;

[0224] The at least one resource position information in the time-frequency-space can be periodic, triggered, or aperiodic;

[0225] Example 2-1: The A-IoT is grouped into N, the query signal is sent periodically, the first time window is the transmission period of the first query signal, and the period is P. Then within one period P, N groups need to be sent with non-overlapping resources respectively within one period, or N groups are sent simultaneously within one period, or N groups are sent randomly within one period; further, M terminals within one group can be sent simultaneously, or can be sent separately within the transmission interval of one group; as Figures 5 - 7 shown; Figure 5 For the first query signal to be randomly transmitted and / or received within the first time window (period P), Figure 6 For the first query signal to be transmitted and / or received within a burst within the first time window (period P),Figure 7 Transmitted and / or received for the starting position of the first query signal in the first time window;

[0226] Example 2-2: The A-IoT group is N, the first query signal is sent on-demand, that is, non-periodically. The first time window is a period of time for sending the query signal, that is, within a time window (starting from the trigger command and ending at the configured time window length), N packets are sent respectively. The specific sending method is the same as that in Example 2-1. As Figure 8 shown, the query signal is sent / received on-demand. The base station sends the query signal within the first time window, and each time window can include all A-IoT devices or A-IoT groups; as Figure 9 shown, the query signal is sent / received on-demand. The base station sends the first query signal within the first time window, and each time window can include some A-IoT devices or some A-IoT groups.

[0227] Example 2-3: 1) Pre-define at least one pattern / channel in the time-frequency-spatial domain, and each pattern / channel is associated with at least one group of A-IoT devices; 2) The A-IoT device obtains at least one pattern / channel in the time-frequency-spatial domain through the association rule, so as to obtain at least one resource position information in the time-frequency-spatial domain; specifically, the association rule can be the A-IoT group identifier or the device identifier, and is associated with at least one pattern / channel in the time-frequency-spatial domain of the association response signal; as Figure 10 shown, the first query signal sub-channel is associated with the A-IoT group identifier or the A-IoT device identifier. Optionally, the pre-defined rule includes the association rule.

[0228] Step 2: The network device sends the first query signal and / or receives the response signal according to the resource position information;

[0229] The network device obtains at least one resource position information in the time-frequency-airspace for sending and / or receiving the first query signal and / or the response signal according to the calculation method, and sends the first query signal and / or receives the response signal according to the resource position information.

[0230] Step 3: The terminal obtains the resource position information;

[0231] The terminal obtains the resource position information, such as the calculation method in Step 1, that is, the A-IoT device calculates the resource position information for receiving and / or sending the first query signal and / or the response signal according to the target identifier. The specific calculation method is the same as that on the network device side and will not be elaborated here.

[0232] Step 4: The terminal sends and / or receives a response signal / a first query signal according to the resource location information in Step 1 or Step 2;

[0233] The terminal obtains at least one of the time-frequency-space resources for receiving and / or sending the first query signal and / or the response signal in a predefined manner according to Step 3, and receives the first query signal and / or sends the response signal according to the resource location information.

[0234] Example 3: Configure the resource location information of the second query signal in a predefined manner, and the second query signal carries the resource location information of the first query signal;

[0235] Step 1: The network device configures or calculates the resource location information of at least one of the time domain, frequency domain, and spatial domain of the second query signal in a predefined manner; optionally, the terminal configures or calculates the resource location information of at least one of the time domain, frequency domain, and spatial domain of the second query signal in a predefined manner;

[0236] The second query signal includes at least one content of the first query signal;

[0237] Optionally, obtain the resource location information of the second query signal in a predefined manner; the specific method is the same as the foregoing embodiments and will not be elaborated here;

[0238] Step 2: The network device indicates the resource location information of at least one of the time domain, frequency domain, and spatial domain of the first query signal through the second query signal;

[0239] The resource location information for receiving and / or sending the first query signal is based on the indication of the second query signal.

[0240] The network device obtains the resource location information of at least one of the time domain, frequency domain, and spatial domain of the second query signal according to a predefined rule, including: the network device calculates and obtains at least one of the time-frequency-space resources for sending and / or receiving the second query signal through a target identifier;

[0241] The network device configures at least one resource in a predefined common time-frequency space for the A-IoT device to send and / or receive the second query signal; the configuration method of the at least one resource in the predefined common time-frequency space is the same as that in Example 1;

[0242] Further, the network device configures at least one of the time-frequency-space resource location information for transmitting and / or receiving the first query signal through the second query signal; at least one of the time-frequency-space resource location information for transmitting / receiving the second query signal is configured in a predefined manner, including at least one of the following: at least one of the time-frequency-space resource location information for transmitting / receiving the second query signal may be at least one resource in the common time-frequency space, or may be periodic; at least one of the time-frequency-space resource information for transmitting and / or receiving the first query signal is updated according to the indication of the second query signal;

[0243] Optionally, for the time-domain resource in the resource location information of at least one of the time domain, frequency domain, and spatial domain in which the first query signal and the second query signal are transmitted, it may be an absolute time and / or a relative time and / or a timer and / or a counter. The absolute time may be at least one absolute time unit, for example, at least one of seconds, milliseconds, microseconds, and picoseconds; the relative time may be based on at least one relative time unit, which may be a time unit based on the base station, for example, at least one symbol, or a time slot, or a subframe, or a radio frame; it may be a time unit based on the A-IoT device, for example, at least one symbol, or a time slot, or a subframe, or a radio frame, or a microprocessor time unit; the frequency-domain resource location information may be a frequency-domain resource based on the base station or a frequency-domain resource based on the A-IoT device; the frequency-domain resource may be based on at least one of a resource element (RE), at least one resource block (RB), and a specified bandwidth;

[0244] Step 3: The network device transmits the second query signal and / or receives the response signal;

[0245] The network device obtains at least one of the time-frequency-space resource location information for transmitting and / or receiving the second query signal and / or the response signal according to a predefined manner, and / or a calculation method, and / or the indication of the second query signal, and transmits the second query signal and / or receives the response signal according to the resource location information.

[0246] Step 4: The terminal obtains the resource location information;

[0247] The terminal obtains the resource location information. As described in Example 1 and Example 2 for the calculation method, that is, the A-IoT device calculates the resource location information for receiving and / or transmitting the second query signal and / or the response signal through a predefined manner or according to the target identifier. The specific calculation method is the same as that on the network device side and will not be elaborated here.

[0248] Step 5: The terminal receives the second query signal;

[0249] The terminal receives a second query signal or sends a response signal according to the resource location information in step 4, and obtains the resource location information of the first query signal indicated by the second query signal; specifically, the content of the first query signal is the same as that on the network device side, which will not be elaborated here.

[0250] Step 6: The terminal receives the first query signal;

[0251] The terminal receives the first query signal, or reflects or sends a response signal according to the obtained resource configuration information of the first query signal; the first query signal is the same as that on the network device side, which will not be elaborated here.

[0252] Example 4: The resource location information of the response signal is indicated by the second query signal;

[0253] Step 1: The network device sends a second query signal to indicate the resource location information of at least one of the time domain, frequency domain, and spatial domain of the response signal; optionally, the terminal sends a second query signal to indicate the resource location information of at least one of the time domain, frequency domain, and spatial domain of the response signal;

[0254] The resource configuration method of the second query signal may include at least one of the methods of Example 1, Example 2, and Example 3;

[0255] This step 1 is the same as step 1 in Example 1, with the difference that:

[0256] The network device sends a second query signal to indicate the resource location information of at least one of the time domain, frequency domain, and spatial domain of the response signal, specifically including at least one of the following:

[0257] 1) The network device indicates, through the second query signal, the resource location information of at least one of the time, frequency, and space for the A-IoT device to reflect the response signal, and the A-IoT device reflects the response signal on at least one of the indicated time, frequency, and space resources;

[0258] 1-1): Indicating the absolute position of the reflected response signal relative to at least one resource in the time, frequency, and space of the second query signal: The absolute position in the time domain can specifically be the position of a radio frame, subframe, symbol, or unit clock; the absolute position in the frequency domain can specifically be the RB, RE, or the specific number of a channel; the absolute position in the spatial domain can specifically correspond to an antenna number, or a port number, or a transceiver unit (TxRU) number, or a channel state information reference signal (CSI-RS) resource identifier, or a CSI reporting identifier;

[0259] 1-2): Indicates the relative position offset of the reflected response signal relative to at least one resource in the time-frequency-space domain of the second query signal (or other reference signal, such as a synchronization signal); Figure 11 Take the relative position offset of time domain resources as an example;

[0260] 2) The network device indicates the timing information of the A-IoT reflected response signal through the second query signal, and the A-IoT device selects and sends the response signal at the indicated timing information;

[0261] 2-1): The timing information indicated by the second query signal is, indicating that the response signal is reflected after the timing information ends; for example, Figure 12 As shown: the timing information may be a timer, or may be based on the number of time units, wherein the time unit may be a time unit based on the sending end, or a time unit based on the receiving end, or a time unit based on the sending end and the receiving end, as agreed upon by the sending end and the receiving end;

[0262] 2-2): The timing information indicated by the second query signal is the maximum timing information. The A-IoT device reflects the response signal and selects a timing information between [0, maximum timing information] according to a predefined rule, and reflects the response signal after the selected timing information ends; the predefined rule may include: random selection, selection based on target identification, etc.; the unit of the timing information may be a timing unit or transmission unit based on the sending end of the second query signal and / or a time unit of the A-IoT device; for example, the time unit may be a wireless frame, subframe, time slot, symbol, unit clock, or may be a time unit of a microprocessor. Figure 13 As shown, the response signal is sent according to a predefined rule between [0, maximum timing information].

[0263] 3) The network device indicates the time window information of the A-IoT device reflecting the response signal through the second query signal, and the A-IoT device reports within the indicated time window; the A-IoT device reflects the response signal within the time window according to the predefined rules within the indicated time window; the indicated time window information can be the defined maximum time window information, and the A-IoT device randomly selects a time within the time window to reflect the response signal, or the second query signal indicates a window information of a random time length, and the A-IoT device randomly selects a time within the window information of the indicated time length to reflect the response signal, such as Figure 14 shown.

[0264] 4) Based on the methods 1), 2), and 3), the A-IoT device uses different sequence reflection response signals;

[0265] The A-IoT device generates a sequence according to predefined rules: The sequence is initialized and generated by the Cell ID / A-IoT group ID / A-IoT physical ID; the sequence can be a random sequence, a pseudo-random sequence, a gold sequence, or a pseudo-random (Pseudo-Noise, PN) sequence.

[0266] Step 2: The network device receives a response signal according to the resource location information.

[0267] The network device obtains at least one of the time-frequency-space resource location information for transmitting and / or receiving the first query signal and / or the response signal according to a predefined manner, and transmits the first query signal and / or receives the response signal according to the resource location information.

[0268] Step 3: The terminal obtains the resource location information of the response signal.

[0269] The terminal obtains the resource location information in the predefined manner as described in Step 1, which will not be elaborated here.

[0270] Step 4: The terminal transmits and / or receives a response signal / the first query signal according to the resource location information in Step 1 or Step 2.

[0271] The terminal obtains at least one of the time-frequency-space resource location information for receiving and / or transmitting the first query signal and / or the response signal according to the predefined manner in Step 3, and receives the first query signal and / or transmits the response signal according to the resource location information.

[0272] Figure 15 It is the second flowchart of the signal transmission method provided by the embodiments of the present application. As Figure 15 shown, the embodiments of the application provide a signal transmission method, and the execution subject thereof may be a network device, such as a base station or a core network device. The method includes:

[0273] Step 1501: Transmit a first query signal according to the resource location information.

[0274] Among them, the resource location information is obtained based on at least one of the following manners: predefined by the protocol, pre-configured by the network device, predefined by the IoT device, calculated by the IoT device, or indicated by the network device based on a second query signal.

[0275] Optionally, transmitting the first query signal according to the resource location information includes:

[0276] Sending the first query signal to the IoT device at a first moment according to the resource location information of the first query signal.

[0277] The method further includes:

[0278] After a first duration at the first moment, receive a response signal sent by the Internet of Things device according to the resource location information of the response signal.

[0279] Optionally, the resource location information includes at least one of resource location information in time domain, frequency domain, and spatial domain;

[0280] The predefined manner includes at least one of the following:

[0281] Configured by signaling of a network device, configured before the Internet of Things device leaves the factory, and configured before the Internet of Things device accesses the network.

[0282] Optionally, the resource location information is at least one of M sub-channels; the M sub-channels are obtained by dividing at least one of time domain, frequency domain, and spatial domain resources; or,

[0283] The resource location information is predefined time domain resource location information, and the time domain resource location information includes at least one of the following: position information of a frame, position information of a sub-frame, position information of a time slot, and position information of a symbol.

[0284] Optionally, when the resource location information is the resource location information of the response signal, and the resource location information of the response signal is indicated by a second query signal, the second query signal is used to indicate at least one of the following:

[0285] The absolute position of at least one of the resource location information in time domain, frequency domain, and spatial domain of the response signal;

[0286] The relative position of at least one of the resource location information in time domain, frequency domain, and spatial domain of the response signal relative to the first query signal or the reference signal;

[0287] The first timing information for sending the response signal;

[0288] The information of the second time window for sending the response signal;

[0289] Wherein, the first timing information is used to indicate that the response signal is sent after the end of the first timing information, or the first timing information is the maximum timing information;

[0290] The information of the second time window is used to indicate that the response signal is sent within the second time window.

[0291] It should be noted here that the above signal transmission method provided by the embodiments of the present application has the same implementation principle as all the method steps implemented by the above method embodiments with the Internet of Things device as the execution subject, and can achieve the same technical effects. Therefore, the same parts and beneficial effects as those in the method embodiments in this embodiment will not be specifically described herein.

[0292] Figure 16 This is a schematic structural diagram of an Internet of Things device provided by an embodiment of the present application. As Figure 16 shown, the Internet of Things device includes a memory 1620, a transceiver 1600, and a processor 1610, where:

[0293] The memory 1620 is used to store computer programs; the transceiver 1600 is used to transmit and receive data under the control of the processor 1610; the processor 1610 is used to read the computer programs in the memory 1620 and perform the following operations:

[0294] Transmit a first query signal or a response signal according to the resource location information;

[0295] Among them, the resource location information is obtained based on at least one of the following methods: protocol predefined, network device preconfigured, the Internet of Things device predefined, the Internet of Things device calculated and obtained, or the network device indicated based on a second query signal.

[0296] Specifically, the transceiver 1600 is used to receive and transmit data under the control of the processor 1600.

[0297] Among them, in Figure 16 the bus architecture may include any number of interconnected buses and bridges, specifically various circuits represented by one or more processors represented by the processor 1610 and the memory represented by the memory 1620 are linked together. The bus architecture can also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, so they will not be further described herein. The bus interface provides an interface. The transceiver 1600 may be multiple elements, that is, including a transmitter and a receiver, and provides a unit for communicating with various other devices on a transmission medium, and these transmission mediums include wireless channels, wired channels, optical fiber cables, and other transmission mediums. The processor 1610 is responsible for managing the bus architecture and general processing, and the memory 1620 can store the data used by the processor 1610 when performing operations.

[0298] The processor 1610 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD), and the processor may also adopt a multi-core architecture.

[0299] Optionally, transmitting the first query signal or the response signal according to the resource location information includes:

[0300] Receiving the first query signal sent by the first device at a first moment according to the resource location information of the first query signal;

[0301] Sending the response signal to the first device after a first duration of the first moment according to the resource location information of the response signal;

[0302] Or,

[0303] Sending a first query signal to a second device at a second moment according to the resource location information of the first query signal;

[0304] Receiving the response signal sent by the second device after a second duration of the second moment according to the resource location information of the response signal.

[0305] Optionally, the resource location information includes at least one of resource location information in the time domain, frequency domain, and spatial domain;

[0306] The predefined manner includes at least one of the following:

[0307] Configured by signaling of a network device, configured before the Internet of Things device leaves the factory, and configured before the Internet of Things device accesses the network.

[0308] Optionally, the resource location information is at least one of M sub-channels; the M sub-channels are obtained by dividing at least one of time domain, frequency domain, and spatial domain resources; or,

[0309] The resource location information is predefined time domain resource location information, and the time domain resource location information includes at least one of the following: frame location information, sub-frame location information, time slot location information, and symbol location information.

[0310] Optionally, before transmitting the first query signal or the response signal according to the resource location information, it further includes:

[0311] Obtaining the resource location information according to the target identifier and the predefined rule; or,

[0312] Obtaining the resource location information according to the target identifier by using the first functional relationship;

[0313] The target identifier includes at least one of the following: the physical identifier of the Internet of Things device, the group identifier of the Internet of Things device, cell identifier, and third-party server identifier.

[0314] Optionally, obtaining the resource location information according to the target identifier by using the first functional relationship includes:

[0315] Determining the starting resource location of the resource location information according to the target identifier by using the first functional relationship.

[0316] Optionally, determining the starting resource location of the resource location information according to the target identifier by using the first functional relationship includes:

[0317] Within a first time window, obtaining the starting resource location of at least one of time domain, frequency domain, and spatial domain resources according to the target identifier; the starting resource location is based on at least one of time domain units, frequency domain units, and spatial domain units.

[0318] Optionally, the target identifier and the starting resource location are in a one-to-one correspondence, or;

[0319] The target identifier and the starting resource location are in a many-to-many correspondence.

[0320] Optionally, the first time window is the transmission period of the Internet of Things device, or any predefined time period, or the time period configured by the network device.

[0321] Optionally, when the resource location information is the resource location information of the response signal, and the resource location information of the response signal is indicated by a second query signal, the second query signal is used to indicate at least one of the following:

[0322] The absolute location of at least one of the time domain, frequency domain, and spatial domain resource location information of the response signal;

[0323] The relative location of at least one of the time domain, frequency domain, and spatial domain resource location information of the response signal relative to the first query signal or the reference signal;

[0324] The first timing information for sending the response signal;

[0325] The information of the second time window for sending the response signal;

[0326] Wherein, the first timing information is used to indicate that the response signal is sent after the end of the first timing information, or the first timing information is the maximum timing information;

[0327] The information of the second time window is used to indicate that the response signal is sent within the second time window.

[0328] Optionally, transmitting the response signal includes:

[0329] When the first timing information is the maximum timing information, select second timing information according to a predefined rule;

[0330] After the second timing information ends, transmit the response signal.

[0331] Optionally, the sending the response signal to the first device includes:

[0332] Send the response signal to the first device by means of backscattering or direct transmission.

[0333] Optionally, the response signal carries a sequence generated according to first information and a predefined rule, where the first information includes at least one of the following: a physical identifier of the Internet of Things device, a grouping identifier of the Internet of Things device, a cell identifier;

[0334] The sequence further includes the first timing information indicated by the second query signal.

[0335] Optionally, the first query signal includes at least one of the following: an excitation signal, an energy harvesting signal, energy storage information, information collection indication information, reference signal transmission indication information, synchronization information, timing information, grouping information, function classification information, application scenario information, priority information, access parameter configuration information, paging parameter configuration information, network device information, Internet of Things device information, Internet of Things device grouping information, activation signaling, deactivation signaling, a threshold for an Internet of Things device to reflect or transmit a signal, an acknowledgement ACK information;

[0336] The response signal includes at least one of the following:

[0337] Internet of Things device information, ACK information, information sent by the Internet of Things device;

[0338] Wherein, the Internet of Things device information includes at least one of the following: an identifier of the Internet of Things device, a grouping identifier of the Internet of Things device.

[0339] It should be noted here that the above Internet of Things device provided in the embodiments of the present application can implement all the method steps implemented by the method embodiments with the Internet of Things device as the execution subject, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments are not specifically described in this embodiment.

[0340] Figure 17 is a schematic structural diagram of a network device provided in an embodiment of the present application, as Figure 17 shown, the network device includes a memory 1720, a transceiver 1700, and a processor 1710, where:

[0341] A memory 1720 for storing computer programs; a transceiver 1700 for transmitting and receiving data under the control of the processor 1710; a processor 1710 for reading the computer programs in the memory 1720 and performing the following operations:

[0342] Transmitting a first query signal according to the resource location information;

[0343] Wherein, the resource location information is obtained based on at least one of the following methods: protocol predefined, network device preconfigured, the Internet of Things device predefined, the Internet of Things device calculated and obtained, or the network device indicated based on a second query signal.

[0344] Specifically, the transceiver 1700 is used for receiving and sending data under the control of the processor 1700.

[0345] Wherein, in Figure 17 The bus architecture may include any number of interconnected buses and bridges, specifically various circuits of one or more processors represented by the processor 1710 and the memory represented by the memory 1720 are linked together. The bus architecture can also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, so they will not be further described herein. The bus interface provides an interface. The transceiver 1700 may be multiple elements, that is, including a transmitter and a receiver, and provides a unit for communicating with various other devices on a transmission medium, and these transmission mediums include wireless channels, wired channels, optical fiber cables, and other transmission mediums. The processor 1710 is responsible for managing the bus architecture and general processing, and the memory 1720 can store the data used by the processor 1710 when performing operations.

[0346] The processor 1710 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD), and the processor may also adopt a multi-core architecture.

[0347] Optionally, transmitting the first query signal according to the resource location information includes:

[0348] Sending the first query signal to the Internet of Things device at a first moment according to the resource location information of the first query signal;

[0349] After a first time period at the first moment, receive a response signal sent by the Internet of Things device according to the resource location information of the response signal.

[0350] Optionally, the resource location information includes at least one of resource location information in time domain, frequency domain, and space domain;

[0351] The predefined manner includes at least one of the following:

[0352] Through signaling configuration of a network device, configured before the Internet of Things device leaves the factory, and configured before the Internet of Things device accesses the network.

[0353] Optionally, the resource location information is at least one of M sub-channels; the M sub-channels are obtained by dividing at least one of time domain, frequency domain, and space domain resources; or,

[0354] The resource location information is predefined time domain resource location information, and the time domain resource location information includes at least one of the following: frame location information, sub-frame location information, time slot location information, symbol location information.

[0355] Optionally, when the resource location information is the resource location information of the response signal, and the resource location information of the response signal is indicated by a second query signal, the second query signal is used to indicate at least one of the following:

[0356] The absolute location of at least one of the resource location information in time domain, frequency domain, and space domain of the response signal;

[0357] The relative location of at least one of the resource location information in time domain, frequency domain, and space domain of the response signal relative to the first query signal or reference signal;

[0358] The first timing information for sending the response signal;

[0359] The information of the second time window for sending the response signal;

[0360] Wherein, the first timing information is used to indicate that the response signal is sent after the end of the first timing information, or the first timing information is the maximum timing information;

[0361] The information of the second time window is used to indicate that the response signal is sent within the second time window.

[0362] It should be noted here that the above-mentioned first device provided in the embodiments of the present application can implement all the method steps implemented by the method embodiments with the first device as the execution subject, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments will not be specifically described in this embodiment.

[0363] The embodiment of the present application also provides a signal transmission device, which can meet the communication requirements of Internet of Things devices, such as the random access process and paging for Internet of Things devices. It can be understood that the methods and devices provided in the embodiments of the present application are based on the same application concept. Since the principles of the methods and devices for solving problems are similar, the implementation of the device and the method can be referred to each other, and the repeated parts will not be described again.

[0364] Figure 18 is one of the structural schematic diagrams of the signal transmission device provided by the embodiment of the present application. This signal transmission device is applied to Internet of Things devices. As Figure 18 shown, this signal transmission device includes a first processing unit 1801, where:

[0365] The first processing unit 1801 is used to transmit a first query signal or a response signal according to the resource location information;

[0366] Among them, the resource location information is obtained based on at least one of the following methods: protocol predefined, network device pre-configuration, Internet of Things device predefined, Internet of Things device calculation and acquisition, or network device indication based on a second query signal.

[0367] Optionally, the first processing unit 1801 is specifically used for:

[0368] Receive the first query signal sent by the first device at a first moment according to the resource location information of the first query signal;

[0369] Send the response signal to the first device after a first duration at the first moment according to the resource location information of the response signal;

[0370] Or,

[0371] Send a first query signal to a second device at a second moment according to the resource location information of the first query signal;

[0372] Receive the response signal sent by the second device after a second duration at the second moment according to the resource location information of the response signal.

[0373] Optionally, the resource location information includes at least one of resource location information in time domain, frequency domain, and space domain;

[0374] The predefined method includes at least one of the following:

[0375] Configured through the signaling of the network device, configured before the Internet of Things device leaves the factory, and configured before the Internet of Things device accesses the network.

[0376] Optionally, the resource location information is at least one of M sub-channels; the M sub-channels are obtained by partitioning at least one of time domain, frequency domain, and spatial domain resources; or,

[0377] the resource location information is pre-defined time domain resource location information, and the time domain resource location information includes at least one of the following: location information of a frame, location information of a sub-frame, location information of a time slot, location information of a symbol.

[0378] Optionally, the first processing unit 1801 is further configured to:

[0379] obtain the resource location information according to the target identifier and a pre-defined rule; or,

[0380] obtain the resource location information according to the target identifier by using the first functional relationship;

[0381] The target identifier includes at least one of the following: a physical identifier of the Internet of Things device, a group identifier of the Internet of Things device, a cell identifier, a third-party server identifier.

[0382] Optionally, the first processing unit 1801 is specifically configured to:

[0383] determine a starting resource location of the resource location information according to the target identifier by using the first functional relationship.

[0384] Optionally, the first processing unit 1801 is specifically configured to:

[0385] within a first time window, obtain a starting resource location of at least one of time domain, frequency domain, and spatial domain resources according to the target identifier; the starting resource location is a starting resource location based on at least one of a time domain unit, a frequency domain unit, and a spatial domain unit.

[0386] Optionally, the target identifier and the starting resource location are in a one-to-one correspondence relationship, or;

[0387] the target identifier and the starting resource location are in a many-to-many correspondence relationship.

[0388] Optionally, the first time window is a transmission period of the Internet of Things device, or an arbitrarily pre-defined time period, or a time period configured by the network device.

[0389] Optionally, when the resource location information is resource location information of a response signal, and the resource location information of the response signal is indicated by a second query signal, the second query signal is used to indicate at least one of the following:

[0390] an absolute location of at least one of time domain, frequency domain, and spatial domain resource location information of the response signal;

[0391] The relative position of at least one of the time domain, frequency domain, and spatial domain resource position information of the response signal relative to the first query signal or reference signal;

[0392] The first timing information for transmitting the response signal;

[0393] The information of the second time window for transmitting the response signal;

[0394] Wherein, the first timing information is used to indicate that the response signal is transmitted after the end of the first timing information, or the first timing information is the maximum timing information;

[0395] The information of the second time window is used to indicate that the response signal is transmitted within the second time window.

[0396] Optionally, the first processing unit 1801 is specifically configured to:

[0397] When the first timing information is the maximum timing information, select second timing information according to a predefined rule;

[0398] Transmit the response signal after the end of the second timing information.

[0399] Optionally, the first processing unit 1801 is specifically configured to:

[0400] Send the response signal to the first device by means of backscattering or direct transmission.

[0401] Optionally, the response signal carries a sequence generated according to the first information and a predefined rule, and the first information includes at least one of the following: the physical identifier of the Internet of Things device, the group identifier of the Internet of Things device, the cell identifier;

[0402] The sequence further includes the first timing information indicated by the second query signal.

[0403] Optionally, the first query signal includes at least one of the following: an excitation signal, an energy harvesting signal, energy storage information, information collection indication information, reference signal transmission indication information, synchronization information, timing information, packet information, function classification information, application scenario information, priority information, access parameter configuration information, paging parameter configuration information, network device information, Internet of Things device information, Internet of Things device group information, activation signaling, deactivation signaling, the threshold for the Internet of Things device to reflect or transmit a signal, acknowledgment ACK information;

[0404] The response signal includes at least one of the following:

[0405] IoT device information, ACK information, information sent by the IoT device;

[0406] Among them, the IoT device information includes at least one of the following: the identifier of the IoT device, the group identifier of the IoT device.

[0407] It should be noted that the above signal transmission device provided in the embodiments of the present application can implement all the method steps implemented by the method embodiments with the IoT device as the execution subject, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments will not be specifically described herein.

[0408] Figure 19 is the second structural schematic diagram of the signal transmission device provided in the embodiments of the present application. This signal transmission device is applied to the first device. As Figure 19 shown, this signal transmission device includes a second processing unit 1901, where:

[0409] The second processing unit 1901 is configured to transmit a first query signal according to the resource location information;

[0410] Among them, the resource location information is obtained based on at least one of the following methods: protocol predefined, network device preconfigured, predefined by the IoT device, calculated by the IoT device, or indicated by the network device based on a second query signal.

[0411] Optionally, the second processing unit 1901 is specifically configured to:

[0412] Send the first query signal to the IoT device at a first moment according to the resource location information of the first query signal;

[0413] Receive the response signal sent by the IoT device after a first duration of the first moment according to the resource location information of the response signal.

[0414] Optionally, the resource location information includes at least one of the resource location information in the time domain, frequency domain, and spatial domain;

[0415] The predefined method includes at least one of the following:

[0416] Through the signaling configuration of the network device, configured before the IoT device leaves the factory, configured before the IoT device accesses the network.

[0417] Optionally, the resource location information is at least one of M sub-channels; the M sub-channels are obtained by dividing at least one of the time domain, frequency domain, and spatial domain resources; or,

[0418] The resource location information is predefined time-domain resource location information, and the time-domain resource location information includes at least one of the following: location information of a frame, location information of a subframe, location information of a time slot, and location information of a symbol.

[0419] Optionally, when the resource location information is the resource location information of a response signal, and the resource location information of the response signal is indicated by a second query signal, the second query signal is used to indicate at least one of the following:

[0420] The absolute location of at least one of the resource location information in the time domain, frequency domain, and spatial domain of the response signal;

[0421] The relative location of at least one of the resource location information in the time domain, frequency domain, and spatial domain of the response signal relative to the first query signal or a reference signal;

[0422] The first timing information for transmitting the response signal;

[0423] The information of the second time window for transmitting the response signal;

[0424] Wherein, the first timing information is used to indicate that the response signal is transmitted after the end of the first timing information, or the first timing information is the maximum timing information;

[0425] The information of the second time window is used to indicate that the response signal is transmitted within the second time window.

[0426] It should be noted that the above signal transmission device provided in the embodiments of the present application can implement all the method steps implemented by the method embodiments with the above execution subject being a network device, and can achieve the same technical effects. Here, the same parts and beneficial effects as those in the method embodiments in this embodiment will not be specifically described again.

[0427] It should be noted that the division of units / modules in the above embodiments of the present application is illustrative, only a logical function division, and there may be other division methods in actual implementation. In addition, each functional unit in the various embodiments of the present application may be integrated in a processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit. The above integrated units may be implemented in the form of hardware or in the form of software functional units.

[0428] When the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in various embodiments of this application. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs.

[0429] In some embodiments, a non-transitory readable storage medium is further provided. The non-transitory readable storage medium stores a computer program, and the computer program is used to cause a processor to execute the signal transmission method provided in each of the above method embodiments.

[0430] Specifically, the above non-transitory readable storage medium provided in the embodiments of this application can implement all the method steps implemented in each of the above method embodiments and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments will not be specifically described herein.

[0431] It should be noted that: the non-transitory readable storage medium can be any available medium or data storage device accessible by the processor, including but not limited to magnetic memories (such as floppy disks, hard disks, magnetic tapes, magneto-optical discs (MO), etc.), optical memories (such as CDs, DVDs, BDs, HVDs, etc.), and semiconductor memories (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drives (SSD)).

[0432] In some embodiments, a processor-readable storage medium is further provided. The processor-readable storage medium stores a computer program, and the computer program is used to cause a processor to execute the signal transmission method provided in each of the above method embodiments.

[0433] Specifically, the above processor-readable storage medium provided in the embodiments of this application can implement all the method steps implemented in each of the above method embodiments and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments will not be specifically described herein.

[0434] In some embodiments, a computer-readable storage medium is further provided. The computer-readable storage medium stores a computer program, and the computer program is used to cause a computer to execute the signal transmission method provided in each of the above method embodiments.

[0435] Specifically, the above computer-readable storage medium provided by the embodiments of the present application can implement all the method steps implemented by each of the above method embodiments, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments in this embodiment will not be specifically described herein.

[0436] In some embodiments, a communication device is further provided. A computer program is stored in the communication device, and the computer program is used to cause the communication device to execute the signal transmission method provided in each of the above method embodiments.

[0437] Specifically, the above communication device provided by the embodiments of the present application can implement all the method steps implemented by each of the above method embodiments, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments in this embodiment will not be specifically described herein.

[0438] In some embodiments, a chip product is further provided. A computer program is stored in the chip product, and the computer program is used to cause the chip product to execute the signal transmission method provided in each of the above method embodiments.

[0439] Specifically, the above chip product provided by the embodiments of the present application can implement all the method steps implemented by each of the above method embodiments, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments in this embodiment will not be specifically described herein.

[0440] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) that contain computer-usable program code.

[0441] This application is described with reference to the flowcharts and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present application. It should be understood that each flow and / or block in the flowchart and / or block diagram, and combinations of flows and / or blocks in the flowchart and / or block diagram, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to the processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing device to produce a machine, such that the instructions executed by the processor of the computer or other programmable data processing device generate means for implementing the functions specified in one flow Figure 1 one flow or multiple flows and / or blocks Figure 1 or means for implementing the functions specified in multiple blocks.

[0442] These processor-executable instructions can also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the processor-readable memory produce a manufacture including instruction means that implement the functions specified in one flow Figure 1 one flow or multiple flows and / or blocks Figure 1 or means for implementing the functions specified in multiple blocks.

[0443] These processor-executable instructions can also be loaded onto a computer or other programmable data processing device, such that a series of operation steps are executed on the computer or other programmable device to produce a computer-implemented process, and thus the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one flow Figure 1 one flow or multiple flows and / or blocks Figure 1 or means for implementing the functions specified in multiple blocks.

[0444] Obviously, those skilled in the art can make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to include these changes and modifications.

Claims

1. A signal transmission method, characterized in that Applied to Internet of Things devices, including: Transmit a first query signal or a response signal according to resource location information; Wherein, the resource location information is obtained based on at least one of the following methods: protocol predefined, network device preconfigured, Internet of Things device predefined, Internet of Things device calculated and obtained, or network device indicated based on a second query signal.

2. The method according to claim 1, wherein The transmitting a first query signal or a response signal according to resource location information includes: Receive the first query signal sent by the first device at a first moment according to the resource location information of the first query signal; Send the response signal to the first device after a first duration at the first moment according to the resource location information of the response signal; Or, Send a first query signal to a second device at a second moment according to the resource location information of the first query signal; Receive the response signal sent by the second device after a second duration at the second moment according to the resource location information of the response signal.

3. The method according to claim 1 or 2, wherein The resource location information includes at least one of resource location information in time domain, frequency domain, and space domain; The predefined includes at least one of the following: Configured by signaling of a network device, configured before the Internet of Things device leaves the factory, configured before the Internet of Things device accesses the network.

4. The method according to any one of claims 1-3, wherein The resource location information is at least one of M sub-channels; the M sub-channels are obtained by dividing at least one of time domain, frequency domain, and space domain resources; or, The resource location information is predefined time domain resource location information, and the time domain resource location information includes at least one of the following: frame location information, sub-frame location information, time slot location information, symbol location information.

5. The method according to any one of claims 1 to 4, characterized in that, Before transmitting the first query signal or the response signal according to the resource location information, it further includes: Obtain the resource location information according to the target identifier and predefined rules; or, Obtain the resource location information according to the target identifier by using a first functional relationship; The target identifier includes at least one of the following: physical identifier of the Internet of Things device, grouping identifier of the Internet of Things device, cell identifier, third-party server identifier.

6. The method according to claim 5, wherein The obtaining the resource location information according to the target identifier by using a first functional relationship includes: Determine the starting resource location of the resource location information according to the target identifier by using the first functional relationship.

7. The method according to claim 6, characterized in that, The determining the starting resource location of the resource location information according to the target identifier by using the first functional relationship includes: Within a first time window, obtain the starting resource location of at least one of time domain, frequency domain, and space domain resources according to the target identifier; the starting resource location is based on the starting resource location of at least one of time domain unit, frequency domain unit, and space domain unit.

8. The method according to any one of claims 5-7, wherein The target identifier and the starting resource location are in a one-to-one correspondence relationship, or; The target identifier and the starting resource location are in a many-to-many correspondence relationship.

9. The method according to claim 7, wherein The first time window is the transmission period of the Internet of Things device, or any pre-defined time period, or the time period configured by the network device.

10. The method according to any one of claims 1-9, characterized in that when the resource location information is the resource location information of the response signal, and the resource location information of the response signal is indicated by a second query signal, the second query signal is used to indicate at least one of the following: the absolute position of at least one of the resource location information in the time domain, frequency domain and spatial domain of the response signal; the relative position of at least one of the resource location information in the time domain, frequency domain and spatial domain of the response signal relative to the first query signal or the reference signal; the first timing information for sending the response signal; the information of the second time window for sending the response signal; wherein, the first timing information is used to indicate that the response signal is sent after the end of the first timing information, or the first timing information is the maximum timing information; the information of the second time window is used to indicate that the response signal is sent within the second time window.

11. The method according to claim 10, wherein Transmitting a response signal includes: when the first timing information is the maximum timing information, selecting second timing information according to a pre-defined rule; transmitting the response signal after the end of the second timing information.

12. The method according to claim 2, wherein Sending the response signal to the first device includes: sending the response signal to the first device by means of backscattering or direct transmission.

13. The method according to any one of claims 1-12, characterized in that the response signal carries a sequence generated according to the first information and a pre-defined rule, and the first information includes at least one of the following: the physical identifier of the Internet of Things device, the group identifier of the Internet of Things device, the cell identifier; the sequence further includes the first timing information indicated by the second query signal.

14. The method according to any one of claims 1 to 13, characterized in that, The first query signal includes at least one of the following: an excitation signal, an energy harvesting signal, energy storage information, information collection indication information, reference signal transmission indication information, synchronization information, timing information, packet information, function classification information, application scenario information, priority information, access parameter configuration information, paging parameter configuration information, network device information, Internet of Things device information, Internet of Things device group information, activation signaling, deactivation signaling, the threshold for the Internet of Things device to reflect or transmit a signal, confirmation ACK information; The response signal includes at least one of the following: Internet of Things device information, ACK information, information sent by the Internet of Things device; wherein, the Internet of Things device information includes at least one of the following: the identifier of the Internet of Things device, the group identifier of the Internet of Things device.

15. A signal transmission method, characterized in that, Applied to the first device, it includes: transmitting a first query signal according to the resource location information; wherein, the resource location information is obtained based on at least one of the following methods: pre-defined by the protocol, pre-configured by the network device, pre-defined by the Internet of Things device, calculated by the Internet of Things device, or indicated by the network device based on the second query signal.

16. The method according to claim 15, wherein Transmitting a first query signal according to the resource location information includes: Send the first query signal to the Internet of Things device at a first moment according to the resource location information of the first query signal; The method further includes: Receive the response signal sent by the Internet of Things device after a first duration of the first moment according to the resource location information of the response signal.

17. The method according to claim 15 or 16, characterized in that, The resource location information includes at least one of resource location information in time domain, frequency domain, and space domain; The predefined includes at least one of the following: Configured by signaling of a network device, configured before the Internet of Things device leaves the factory, and configured before the Internet of Things device accesses the network.

18. The method according to any one of claims 15-17, characterized in that, The resource location information is at least one of M sub-channels; the M sub-channels are obtained by dividing at least one of time domain, frequency domain, and space domain resources; or, The resource location information is predefined time domain resource location information, and the time domain resource location information includes at least one of the following: frame location information, sub-frame location information, time slot location information, symbol location information.

19. The method according to any one of claims 15-18, characterized in that, When the resource location information is the resource location information of the response signal, and the resource location information of the response signal is indicated by a second query signal, the second query signal is used to indicate at least one of the following: The absolute location of at least one of the resource location information in time domain, frequency domain, and space domain of the response signal; The relative location of at least one of the resource location information in time domain, frequency domain, and space domain of the response signal relative to the first query signal or a reference signal; The first timing information for sending the response signal; The information of the second time window for sending the response signal; Wherein, the first timing information is used to indicate that the response signal is sent after the end of the first timing information, or the first timing information is the maximum timing information; The information of the second time window is used to indicate that the response signal is sent within the second time window.

20. An Internet of Things device, including a memory, a transceiver, and a processor: The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer programs in the memory and perform the following operations: Transmit a first query signal or a response signal according to the resource location information; Among them, The resource location information is obtained based on at least one of the following methods: predefined by protocol, pre-configured by a network device, predefined by the Internet of Things device, calculated and obtained by the Internet of Things device, or indicated by a network device based on a second query signal.

21. The Internet of Things device according to claim 20, wherein The transmitting a first query signal or a response signal according to the resource location information includes: Receive the first query signal sent by the first device at a first moment according to the resource location information of the first query signal; Send the response signal to the first device after a first duration of the first moment according to the resource location information of the response signal; Or, Send a first query signal to a second device at a second moment according to the resource location information of the first query signal; Receive a response signal sent by the second device after a second duration at the second moment according to the resource location information of the response signal.

22. The Internet of Things device according to claim 20 or 21, characterized in that The resource location information includes at least one of resource location information in time domain, frequency domain, and space domain; The predefined includes at least one of the following: Configured by signaling of a network device, configured before the Internet of Things device leaves the factory, and configured before the Internet of Things device accesses the network.

23. The Internet of Things device according to any one of claims 20-22, characterized in that The resource location information is at least one of M sub-channels; the M sub-channels are obtained by dividing at least one of time domain, frequency domain, and space domain resources; or, The resource location information is predefined time domain resource location information, and the time domain resource location information includes at least one of the following: frame location information, sub-frame location information, time slot location information, symbol location information.

24. The Internet of Things device according to any one of claims 20-23, characterized in that Before transmitting the first query signal or the response signal according to the resource location information, it further includes: Obtain the resource location information according to the target identifier and predefined rules; or, Obtain the resource location information according to the target identifier by using a first functional relationship; The target identifier includes at least one of the following: physical identifier of the Internet of Things device, grouping identifier of the Internet of Things device, cell identifier, third-party server identifier.

25. The Internet of Things device according to claim 24, characterized in that Obtaining the resource location information according to the target identifier by using a first functional relationship includes: Determine the starting resource location of the resource location information according to the target identifier by using the first functional relationship.

26. The Internet of Things device according to claim 25, characterized in that Determining the starting resource location of the resource location information according to the target identifier by using the first functional relationship includes: Within a first time window, obtain the starting resource location of at least one of time domain, frequency domain, and space domain resources according to the target identifier; the starting resource location is based on the starting resource location of at least one of time domain units, frequency domain units, and space domain units.

27. The Internet of Things device according to any one of claims 24-26, characterized in that There is a one-to-one correspondence between the target identifier and the starting resource location, or; There is a many-to-many correspondence between the target identifier and the starting resource location.

28. The Internet of Things device according to claim 26, characterized in that The first time window is the transmission period of the Internet of Things device, or a predefined arbitrary time period, or a time period configured by the network device.

29. The Internet of Things device according to any one of claims 20-28, characterized in that When the resource location information is the resource location information of a response signal, and the resource location information of the response signal is indicated by a second query signal, the second query signal is used to indicate at least one of the following: The absolute location of at least one of the resource location information in the time domain, frequency domain, and spatial domain of the response signal; The relative location of at least one of the resource location information in the time domain, frequency domain, and spatial domain of the response signal relative to the first query signal or reference signal; The first timing information for transmitting the response signal; The information of the second time window for transmitting the response signal; Wherein, the first timing information is used to indicate that the response signal is transmitted after the end of the first timing information, or the first timing information is the maximum timing information; The information of the second time window is used to indicate that the response signal is transmitted within the second time window.

30. The Internet of Things device according to claim 29, characterized in that, Transmitting a response signal includes: When the first timing information is the maximum timing information, selecting second timing information according to a predefined rule; After the end of the second timing information, transmitting the response signal.

31. A first device, including a memory, a transceiver, and a processor: The memory is used to store computer programs; the transceiver is used to transmit and receive data under the control of the processor; the processor is used to read the computer programs in the memory and perform the following operations: Transmitting a first query signal according to the resource location information; Among them, The resource location information is obtained based on at least one of the following methods: protocol predefined, network device preconfigured, Internet of Things device predefined, the Internet of Things device calculates and obtains, or the network device is indicated based on a second query signal.

32. A signal transmission device, characterized in that, Applied to an Internet of Things device, including: A first processing unit is used to transmit a first query signal or a response signal according to the resource location information; Wherein, the resource location information is obtained based on at least one of the following methods: protocol predefined, network device preconfigured, the Internet of Things device predefined, the Internet of Things device calculates and obtains, or the network device is indicated based on a second query signal.

33. A signal transmission device, characterized in that, Applied to a first device, including: A second processing unit is used to transmit a first query signal according to the resource location information; Wherein, the resource location information is obtained based on at least one of the following methods: protocol predefined, network device preconfigured, Internet of Things device predefined, the Internet of Things device calculates and obtains, or the network device is indicated based on a second query signal.

34. A processor-readable storage medium, characterized in that, The processor-readable storage medium stores a computer program, and the computer program is used to cause the processor to execute the method according to any one of claims 1 to 14, or the method according to any one of claims 15 to 19.

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