Method and device for determining uplink transmission waveform information

Abstract

The invention discloses a method and device for determining uplink transmission waveform information, and belongs to the technical field of communication, and the method for determining the uplink transmission waveform information comprises the steps that first equipment detects a downlink control signal sent by second equipment on at least one downlink frequency resource group; and determining target uplink transmission waveform information of the first device based on a reference frequency point and the detected target downlink frequency resource group bearing the downlink control signal, the at least one downlink frequency resource group comprising the target downlink frequency resource group.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a method and device for determining uplink transmission waveform information. Background Art

[0002] Backscatter communication refers to the backscatter communication device using the radio frequency signal from other devices or the environment to modulate the signal to transmit its own information. In the related backscatter transmission technology, sending control signaling to indicate the uplink transmission resources will increase the length of the control signaling, thereby increasing the signaling overhead. Summary of the invention

[0003] The embodiments of the present application provide a method and a device for determining uplink transmission waveform information, which can reduce the complexity of resource scheduling and the complexity of signaling structure.

[0004] In a first aspect, a method for determining uplink transmission waveform information is provided, the method comprising: a first device detecting a downlink control signal sent by a second device on at least one downlink frequency resource group; based on a reference frequency point and the detected target downlink frequency resource group carrying the downlink control signal, determining the target uplink transmission waveform information of the first device, wherein the at least one downlink frequency resource group includes the target downlink frequency resource group.

[0005] In a second aspect, a method for determining uplink transmission waveform information is provided, the method comprising: a second device sends a downlink control signal to a first device on at least one target downlink frequency resource group, wherein the target downlink frequency resource group is used to determine target uplink transmission waveform information of the first device.

[0006] According to a third aspect, a device for determining uplink transmission waveform information is provided, the device comprising: a detection module for detecting a downlink control signal sent by a second device on at least one downlink frequency resource group; a first determination module for determining target uplink transmission waveform information of the first device based on a reference frequency point and on the basis of detecting a target downlink frequency resource group carrying the downlink control signal, wherein the at least one downlink frequency resource group includes the target downlink frequency resource group.

[0007] In a fourth aspect, a device for determining uplink transmission waveform information is provided, the device comprising: a second determination module, for determining at least one target downlink frequency resource group, wherein the target downlink frequency resource group is used to indicate the uplink transmission waveform information used by a first device; a first sending module, for sending a downlink control signal to the first device on the at least one target downlink frequency resource group, wherein the target downlink frequency resource group is used to determine the target uplink transmission waveform information of the first device.

[0008] In a fifth aspect, a terminal is provided, which includes a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0009] In a sixth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the processor is used to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect, and the communication interface is used to communicate with an external device.

[0010] In the seventh aspect, a network side device is provided, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0011] In an eighth aspect, a network side device is provided, comprising a processor and a communication interface, wherein the processor is used to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect, and the communication interface is used to communicate with an external device.

[0012] In a ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0013] In a tenth aspect, a wireless communication system is provided, including: a terminal and a network side device, wherein the terminal can be used to perform the steps of the method described in the first aspect or the steps of the method described in the second aspect. The network side device can be used to perform the steps of the method described in the first aspect or the steps of the method described in the second aspect.

[0014] In the eleventh aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the method described in the first aspect, or to implement the method described in the second aspect.

[0015] In the twelfth aspect, a computer program / program product is provided, wherein the computer program / program product is stored in a storage medium, and the program / program product is executed by at least one processor to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0016] In an embodiment of the present application, the first device detects a downlink control signal sent by a second device on at least one downlink frequency resource group, and determines the target uplink transmission waveform information of the first device based on a reference frequency point and the detected target downlink frequency resource group carrying the downlink control signal, thereby reducing the complexity of resource scheduling and the signaling indication length. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A block diagram showing a wireless communication system to which the embodiments of the present application can be applied;

[0018] Figure 2 A block diagram of an applicable backscatter system communication system provided by an embodiment of the present application is shown;

[0019] Figure 3 A signal modulation diagram of a backscatter communication applicable to an embodiment of the present application is shown;

[0020] Figure 4 A schematic diagram showing the structure of a downlink frequency resource group of a reader / writer device applicable to an embodiment of the present application is shown;

[0021] Figure 5 A schematic diagram showing a flow chart of a method for determining uplink transmission waveform information provided by an embodiment of the present application;

[0022] Figure 6 A schematic diagram showing a distribution of detection points corresponding to a downlink frequency resource group provided in an embodiment of the present application;

[0023] Figure 7 Another schematic diagram showing the distribution of detection points corresponding to the downlink frequency resource group provided in an embodiment of the present application;

[0024] Figure 8 A schematic diagram showing a mapping relationship between a downlink frequency resource group and a reference frequency point provided in an embodiment of the present application;

[0025] Fig. 9 Another schematic diagram showing the mapping relationship between the downlink frequency resource group and the reference frequency point provided in an embodiment of the present application;

[0026] Fig.10 Another schematic diagram showing the mapping relationship between the downlink frequency resource group and the reference frequency point provided in an embodiment of the present application;

[0027] Fig.11a A schematic diagram showing a target uplink transmission waveform provided by an embodiment of the present application;

[0028] Fig.11b A schematic diagram showing a target uplink transmission waveform provided by an embodiment of the present application;

[0029] Fig.12a A schematic diagram showing a target uplink transmission waveform provided by an embodiment of the present application;

[0030] Figure 12b A schematic diagram showing a target uplink transmission waveform provided by an embodiment of the present application;

[0031] Fig.13a A schematic diagram showing a target uplink transmission waveform provided by an embodiment of the present application;

[0032] Fig.13b A schematic diagram showing a target uplink transmission waveform provided by an embodiment of the present application;

[0033] Fig.14 A schematic diagram showing a waveform of amplitude-shift keying (ASK) modulation provided in an embodiment of the present application;

[0034] Fig.15 A schematic diagram showing a waveform of frequency shift keying FSK modulation provided in an embodiment of the present application;

[0035] Fig.16 A schematic diagram showing a waveform of Gaussian minimum shift keying GMSK modulation provided in an embodiment of the present application;

[0036] Fig.17 Another schematic diagram showing a flow chart of a method for determining uplink transmission waveform information provided in an embodiment of the present application;

[0037] Fig.18 A schematic diagram showing a structure of a device for determining uplink transmission waveform information provided in an embodiment of the present application;

[0038] Fig.19 Another structural schematic diagram showing an apparatus for determining uplink transmission waveform information provided in an embodiment of the present application;

[0039] Fig. 20 A schematic diagram showing the structure of a communication device provided in an embodiment of the present application is shown;

[0040] Fig.21 A schematic diagram showing the hardware structure of a terminal provided in an embodiment of the present application is shown;

[0041] Fig. 22 A schematic diagram of the hardware structure of a network side device provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are 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 ordinary technicians in this field belong to the scope of protection of this application.

[0043] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of one type, and the number of objects is not limited, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three schemes, namely, Scheme 1: including A but not including B; Scheme 2: including B but not including A; Scheme 3: including both A and B. The character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0044] The term "indication" in this application can be a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, operations to be performed, or request results in the sent indication; an indirect indication can be understood as the receiver determining the corresponding information according to the indication sent by the sender, or making a judgment and determining the operation to be performed or the request result according to the judgment result.

[0045] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following descriptions, but these technologies can also be applied to systems other than NR systems, such as the 6th generation (6 th Generation, 6G) communication system.

[0046] Figure 1A schematic diagram of a wireless communication system applicable to an embodiment of the present application is shown. The wireless communication system includes a first terminal 10, a second terminal 11 and a network side device 12. Among them, the first terminal 10 can be a terminal, which can also be called a terminal device or a user terminal (User Equipment, UE), the first terminal 10 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), a vehicle-mounted device (VUE), a pedestrian terminal (PUE), a card reader and other terminal side devices, the second terminal 11 can be a terminal or a backscattering device, including but not limited to a wearable device (Wearable Device) and an Internet of Things device (Internet of Things, IoT), wherein the wearable device includes: a bracelet, a headset, glasses, etc., and the Internet of Things device includes a passive IoT device, for example, a tag Tag, and can also include a semi-passive IoT device and an active IoT device. It should be noted that the specific types of the first terminal 10 and the second terminal 11 are not limited in the embodiments of the present application. The network side device 12 may be a base station or a core network, wherein the base station may be referred to as a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, a transmitting and receiving point (Transmitting Receiving Point, TRP) or some other appropriate term in the field, as long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary, it should be noted that in the embodiments of the present application, only the base station in the 6G system is taken as an example, but the specific type of the base station is not limited.

[0047] The core network device may include, but is not limited to, at least one of the following: a core network node, a core network function, a mobility management entity (Mobility Management Entity, MME), an access mobility management function (Access and Mobility Management Function, AMF), a session management function (Session Management Function, SMF), a user plane function (User Plane Function, UPF), a policy control function (Policy Control Function, PCF), a policy and charging rules function unit (Policy and Charging Rules Function, PCRF), an edge application service discovery function (Edge Application Server Discovery Function, EASDF), a unified data management (Unified Data Management, UDM), a unified data storage (Unified Data Repository, UDR), a home user server (Home Subscriber Server, HSS), a centralized network configuration (CNC), a network storage function (Network Repository Function, NRF), a network exposure function (Network Exposure Function, NEF), a local NEF (Local NEF, or L-NEF), and a binding support function (Binding Support Function, BSF), application function (Application Function, AF), etc. It should be noted that in the embodiment of the present application, only the core network device in the NR system is introduced as an example, and the specific type of the core network device is not limited.But not limited to at least one of the following: core network node, core network function, mobility management entity (Mobility Management Entity, MME), access mobility management function (Access and Mobility Management Function, AMF), session management function (Session Management Function, SMF), user plane function (User Plane Function, UPF), policy control function (Policy Control Function, PCF), policy and charging rules function unit (Policy and Charging Rules Function, PCRF), edge application service discovery function (Edge Application Server Discovery Function, EASDF), unified data management (Unified Data Management, UDM), unified data storage (Unified Data Repository, UDR), home user server (Home Subscriber Server, HSS), centralized network configuration (CNC), network storage function (Network Repository Function, NRF), network exposure function (Network Exposure Function, NEF), local NEF (Local NEF, or L-NEF), binding support function (Binding Support Function, BSF), application function (Application Function, AF), etc. It should be noted that in the embodiments of the present application, only the core network device in the NR system is introduced as an example, and the specific type of the core network device is not limited.

[0048] In order to better understand the technical solution provided by this application, the technology involved in this application is first introduced.

[0049] Backscatter communication refers to the backscatter communication device using the radio frequency signal from other devices or the environment to modulate the signal to transmit its own information. The backscatter communication device can be one of the following:

[0050] (1) The backscatter communication device in traditional radio frequency identification (RFID) is generally a tag, which belongs to the passive Internet of Things (IoT) device, namely Passive-IoT.

[0051] (2) Semi-passive IoT devices, which have a certain amplification capability for downlink reception or uplink reflection.

[0052] (3) Devices with active transmission capability: This type of terminal can send information to the reader without relying on the reflection of the incident signal, but has the ability to actively generate and send signals.

[0053] The energy sources of the above three types of devices can come from the environment, such as ambient radio frequency (RF) signals, thermal energy, kinetic energy, wind energy, etc., and they can also be called ambient IoT devices (Ambient IoT device).

[0054] Figure 2 A schematic diagram of a backscatter communication system is shown. Figure 2 As shown, there are two links between a reader and an IoT device (e.g., a tag), namely, a first link from the reader to the IoT device, and a second link from the IoT device to the reader (i.e., a backscatter link). The reader can send a control command or a continuous carrier wave to the IoT device through the first link, and the IoT device can send a backscatter signal to the reader through the second link. One implementation method is that the IoT device reflects the incident carrier signal when it needs to send '1', and does not reflect it when it needs to send '0'.

[0055] like Figure 3 As shown, the backscatter communication device can control the reflection coefficient Γ of the circuit by adjusting its internal impedance, thereby changing the amplitude, frequency, phase, etc. of the incident signal to achieve signal modulation. The reflection coefficient of the signal can be characterized as:

[0056]

[0057] Where Z0 is the antenna characteristic impedance and Z1 is the load impedance. Assume that the incident signal is S in(t) , the output signal is Therefore, corresponding amplitude modulation, frequency modulation or phase modulation can be achieved by properly controlling the reflection coefficient.

[0058] Figure 4 This is a schematic diagram of the downlink frequency resource group structure of the read-write device, such as Figure 4 As shown, the read / write device can transmit control signals on one or more frequency resources, divide a frequency resource into multiple segments, each segment is a frequency resource group, and each frequency resource group contains multiple resource blocks (Resource Element, RE). The number of REs and the frequency domain width occupied by each RE can be preconfigured / predefined.

[0059] In the communication between the reader and the tag, the control command sent by the reader carries indication information, indicating the transmission parameters used by the tag, for example, the bit information indicates that the tag uses a frequency offset by 40KHz or 80KHz compared to the carrier frequency for backscattering or uplink transmission of the modulated signal. Although the use of signaling can indicate the uplink transmission frequency or waveform information of the tag, the cost is to increase the length of the control signaling. Therefore, it is necessary to find a method to indicate the uplink waveform information of the tag so that the signaling length is not additionally occupied.

[0060] In view of this, the present application proposes a method and a device for determining uplink transmission waveform information.

[0061] The following, in combination with the accompanying drawings, describes in detail the method and device for determining the uplink transmission waveform information provided by the embodiments of the present application through some embodiments and their application scenarios.

[0062] Figure 5 A flow chart of a method for determining uplink transmission waveform information in an embodiment of the present application is shown. The method 500 can be executed by a first device in signal detection, wherein the first device can be a terminal or an Internet of Things device. For example, the first device can be Figure 1 The second terminal 11 in the present application is not limited in detail in the embodiments. In other words, the method can be executed by software or hardware installed on the first device. Figure 5 As shown, the method may include the following steps.

[0063] S510: The first device detects a downlink control signal sent by the second device on at least one downlink frequency resource group.

[0064] The first device may be a response device of an Internet of Things device, and the response device may include: a passive Internet of Things device (Device A), a semi-passive Internet of Things device (Device B) or an active Internet of Things device (Device C).

[0065] Regarding the downlink frequency resource group, it can be understood that a section of frequency resources is divided into multiple segments, each segment is a frequency resource group, and the second device can send a downlink control signal on one or more downlink frequency resource groups, then the first device needs to detect the downlink control signal on at least one downlink frequency resource group.

[0066] S520: Determine target uplink transmission waveform information of the first device based on a reference frequency point and the detected target downlink frequency resource group carrying the downlink control signal.

[0067] The at least one downlink frequency resource group includes the target downlink frequency resource group.

[0068] It can be understood that when the first device detects a downlink control signal sent by the second device on at least one downlink frequency resource group, the downlink control signal may be detected on a certain downlink frequency resource group, or the downlink control signal may not be detected on a certain downlink frequency resource group. In this case, the downlink frequency resource group where the downlink control signal is detected can be called a target downlink frequency resource group, that is, the at least one downlink frequency resource group includes the target downlink frequency resource group.

[0069] In an embodiment of the present application, a downlink control signal sent by a second device is detected by a first device on at least one downlink frequency resource group, and based on a reference frequency point and the detected target downlink frequency resource group carrying the downlink control signal, the target uplink transmission waveform information of the first device is determined, and the downlink control signal is mapped on the downlink resource group and sent. The downlink control signal does not need to use bit information to indicate the uplink working waveform information, but uses the position information of the downlink frequency resource group carrying the downlink control signal to implicitly indicate the uplink waveform information. The uplink waveform information can be waveform time domain information or frequency domain information. Thereby, the signaling overhead can be reduced. Moreover, the bit information saved by the downlink control signal can be used for other indications. Therefore, the complexity of resource scheduling and the length of signaling indication can be reduced.

[0070] In a possible implementation manner, the first device detecting a downlink control signal sent by the second device on at least one downlink frequency resource group may include one of the following:

[0071] (1) The first device detects the downlink control signal on a single downlink frequency resource group according to pre-configuration information or pre-indication information.

[0072] Among them, detecting the downlink control signal on a single downlink frequency resource group may refer to detecting the downlink control signal at a single frequency point or detecting the downlink control signal within a frequency range, the single frequency point refers to the frequency point corresponding to the downlink frequency resource group, and the frequency range refers to the frequency range corresponding to the downlink frequency resource group, including the highest frequency and the lowest frequency. The following is an example of detecting the downlink control signal at a single frequency point. Figure 6 As shown, the first device has multiple frequency detection points on one side of the reference frequency point, so the detection method of detecting the downlink control signal at a single frequency point may include one of the following:

[0073] 1) Detect at detection point 1, but not at detection points 2 and 3.

[0074] 2) Detect at detection point 2, but not at detection points 1 and 3.

[0075] 3) Detect at detection point 3, but not at detection points 1 and 2.

[0076] It should be noted that the specific frequency point (detection point) or frequency range in which detection is performed can be determined according to pre-configuration information or pre-indication information.

[0077] (2) The first device detects the downlink control signal on multiple downlink frequency resource groups according to the pre-configuration information or the pre-indication information.

[0078] It can be understood that if the second device sends a downlink control signal on multiple downlink frequency resource groups, the first device can detect the downlink control signal on multiple downlink frequency resource groups according to the pre-configuration information or the pre-indication information. Since the second device sends a downlink control signal on multiple downlink frequency resource groups, the first device can have multiple frequency detection points on both sides of the reference frequency point when detecting, such as Figure 7 As shown, detection can be performed at detection point 1 and detection point 4.

[0079] In a possible implementation manner, the frequency of the reference frequency point may include one of the following:

[0080] (1) The frequency of the reference frequency point is less than the lowest frequency of the single downlink frequency resource group.

[0081] For example, Figure 8 As shown, the downlink frequency resource group is above the reference frequency point, that is, the frequency of the reference frequency point is less than the lowest frequency of the downlink frequency resource group.

[0082] (2) The frequency of the reference frequency point is greater than the highest frequency of the single downlink frequency resource group.

[0083] For example, Fig. 9As shown, the downlink frequency resource group is below the reference frequency point, that is, the frequency of the reference frequency point is greater than the highest frequency of the downlink frequency resource group.

[0084] (3) The frequency of the reference frequency point is equal to the middle frequency of the multiple downlink frequency resource groups.

[0085] For example, Fig.10 As shown, the reference frequency point is located in the middle position between resource group A and resource group D, that is, the frequency of the reference frequency point is equal to the middle frequency of multiple downlink frequency resource groups.

[0086] In another possible implementation, the reference frequency point may include one of the following:

[0087] (1) used to receive the frequency point of the excitation carrier sent by the second device;

[0088] (2) Virtual frequency point.

[0089] That is to say, the reference frequency point can be the frequency point at which the second device sends the excitation carrier signal, that is, when the second device first sends the excitation carrier signal to the first device at the target frequency point and then sends the downlink control signal, the target frequency point can be used as the reference frequency point. In addition, the reference frequency point can also be a virtual frequency point, that is, it has no actual physical meaning.

[0090] Regarding the target uplink transmission waveform information, in a possible implementation manner, the target uplink transmission waveform information may include at least one of the following:

[0091] (1) The duration of the high level of the uplink transmission waveform in one cycle.

[0092] (2) The high-level-low-level cycle time of the uplink transmission waveform.

[0093] It can be understood that the duration of the high level of the uplink transmission waveform in one cycle can refer to the duration of the uplink transmission waveform ON, and the cycle time of the high level-low level of the uplink transmission waveform can refer to the cycle of the uplink transmission waveform ON-OFF. When the first device detects a downlink control signal on the target downlink frequency resource group, the target uplink transmission waveform information can be determined through the target downlink frequency resource group and the reference frequency point. The target uplink transmission waveform information can include the duration of the high level of the uplink transmission waveform in one cycle and / or the cycle time of the high level-low level of the uplink transmission waveform.

[0094] Exemplarily, if the frequency of the reference frequency point is less than the lowest frequency of resource group A, the first device detects the downlink control signal sent by the second device on resource group A, and determines the target uplink transmission waveform information of the first device based on the position (frequency) of resource group A and the frequency of the reference frequency point. Within the reference time, the target uplink transmission waveform has a complete waveform ON-OFF duration (such as Fig.11a ) or multiple ON-OFF waveform durations (as shown Fig.11b shown).

[0095] If the frequency of the reference frequency point is greater than the highest frequency of resource group A, the first device detects the downlink control signal sent by the second device on resource group A, and determines the target uplink transmission waveform information of the first device based on the position (frequency) of resource group A and the frequency of the reference frequency point. Within the reference time, the target uplink transmission waveform has a complete waveform ON-OFF duration (such as Fig.12a ) or multiple ON-OFF waveform durations (as shown Figure 12b shown).

[0096] If the frequency of the reference frequency point is equal to the intermediate frequency of the resource group A and the resource group D, the first device detects the downlink control signal sent by the second device on the resource group A and the resource group D, and determines the target uplink transmission waveform information of the first device based on the position (frequency) of the resource group A and the resource group D and the frequency of the reference frequency point. Within the reference time, the target uplink transmission waveform has a complete waveform ON-OFF duration (such as Fig.13a ) or multiple ON-OFF waveform durations (as shown Fig.13b shown).

[0097] It should be noted that if the hardware capability of the first device is poor, the crystal oscillator generating the signal may be unstable, resulting in inconsistent waveform duration. Therefore, it is possible to consider adding a protection interval or offset before the waveform duration to counteract the waveform inconsistency caused by the unstable crystal oscillator.

[0098] Further, the target uplink transmission waveform may include one of the following:

[0099] (1) Waveform of amplitude-shift keying (ASK) modulation.

[0100] (2) Waveform of binary amplitude keying OOK modulation.

[0101] Amplitude shift keying (ASK) is a modulation technique that converts digital signals into amplitudes. ASK uses two different amplitudes to represent the digital 0 and 1. The digital 1 represents a high amplitude, and the digital 0 represents a low amplitude. Binary amplitude keying (OOK) is a modulation technique that converts digital signals into amplitudes. It uses two different amplitudes to represent the digital 0 and 1. In OOK modulation, the digital 1 represents the maximum amplitude, and the digital 0 represents zero amplitude. For example, Fig.14 As shown, within the reference time, there is a fluctuation time and a stable time of the waveform. The duration of the fluctuation time is related to the frequency of the downlink frequency resource group and the frequency of the reference signal. Within the reference time, there may be one ASK cycle or multiple ASK cycles. In addition, in one implementation, the uplink transmission waveform may be a coded waveform or an uncoded waveform. The coding method of the coded waveform includes one of the following;

[0102] (1) Miller coding.

[0103] (2) Dual-phase space code FM0 code.

[0104] (3) Manchester code.

[0105] In this implementation, the coded waveform can improve the reliability and anti-interference capability of signal transmission, and the uncoded waveform can reduce resource consumption and reduce the complexity of signal transmission.

[0106] In another possible implementation, the target uplink transmission waveform information may include: a frequency set of the uplink transmission waveform. Further, the uplink transmission waveform includes one of the following:

[0107] (1) Frequency shift keying (FSK) modulation waveform.

[0108] The waveform modulated by frequency shift keying (FSK) can make the downlink control signal switch quickly at different frequencies, thereby transmitting digital signals. This modulation method can effectively reduce signal interference and anti-jitter performance, and is suitable for application scenarios with poor channel quality. For example, Fig.15 As shown, if the waveform of the downlink control signal sent by the second device is a 2FSK waveform, due to the frequencies of different downlink frequency resource groups and the frequencies of the reference signal points, different uplink transmission waveform frequency set information can be indicated, then Fig.15 The frequencies f1 and f2 and the difference between f1 and f2 are related to the frequency of the downlink frequency resource group and the frequency of the reference signal.

[0109] (2) Waveform of Gaussian Minimum Shift Keying (GMSK) modulation.

[0110] Gaussian minimum shift keying (GMSK) uses a Gaussian filter to smooth the change of carrier frequency, which can reduce the problem of spectrum narrowness and inter-symbol interference. If the waveform of the downlink control signal sent by the second device is a GMSK waveform, the difference between the GMSK waveform and the FSK waveform is that the GMSK waveform is a phase-continuous waveform, such as Fig.16 As shown, the phase at the intersection of two frequency points changes continuously.

[0111] In addition, in one implementation, the uplink transmission waveform may be a coded waveform or an uncoded waveform. The coding method of the coded waveform includes one of the following:

[0112] (1) Miller coding.

[0113] (2) Dual-phase space code FM0 code.

[0114] (3) Manchester code.

[0115] In a possible implementation manner, determining the target uplink transmission waveform information of the first device based on the reference frequency point and detecting the target downlink frequency resource group carrying the downlink control signal may include the following steps:

[0116] Step 1: Obtain a target frequency offset between the center frequency of the target downlink frequency resource group and the reference frequency point.

[0117] Continue to refer to the above Figures 8 to 10 In any of the accompanying drawings in the figure, the center frequency of the target downlink frequency resource group may refer to the center frequency point of the resource group shown in the figure. Because the frequency of a downlink frequency resource group may be a frequency range, i.e., including the highest frequency and the lowest frequency, in order to facilitate calculation, the middle frequency between the highest frequency and the lowest frequency may be taken as the center frequency of the target downlink frequency resource group. Then, the difference between the center frequency of the target downlink frequency resource group and the reference frequency point is the target frequency offset. The larger the target frequency offset, the farther the target downlink frequency resource group is from the reference frequency point.

[0118] It should be noted that the size of the target downlink frequency resource group, i.e. the number of occupied REs, and the frequency offset can be predefined or preconfigured by the network side. The predefined or preconfigured frequency offset is to fix the downlink frequency resource group within a certain frequency range to avoid frequency conflicts or interference.

[0119] Optionally, the target frequency offset can also be determined by the highest frequency or the lowest frequency of the target downlink frequency resource group or other frequencies in the resource group and the reference frequency point. In other words, the target frequency offset is not limited to being determined by the center frequency of the target downlink frequency resource group.

[0120] Step 2: Based on a preset mapping relationship between uplink transmission waveform information and frequency offset, the target uplink transmission waveform information corresponding to the target frequency offset is obtained.

[0121] In the above implementation, a mapping relationship between uplink transmission waveform information and frequency offset is preset, and the corresponding target uplink transmission waveform information is obtained through the frequency offset between the target downlink frequency resource group carrying the downlink control signal and the reference frequency point.

[0122] In another possible implementation manner, determining the target uplink transmission waveform information of the first device based on the reference frequency point and detecting the target downlink frequency resource group carrying the downlink control signal may include:

[0123] Based on a preset mapping relationship between a downlink frequency resource group and an uplink transmission waveform, target uplink transmission waveform information corresponding to the target downlink frequency resource group is acquired.

[0124] In the above implementation, the mapping relationship between the downlink frequency resource group and the uplink transmission waveform can be pre-defined. For example, the mapping relationship between the identifier of the downlink frequency resource group and the uplink transmission waveform can be defined. When the first device detects a downlink control signal, it obtains the target uplink transmission waveform information corresponding to the target downlink frequency resource group carrying the downlink control signal.

[0125] In specific applications, when setting the mapping relationship between the downlink frequency resource group and the uplink transmission waveform, the uplink transmission waveform corresponding to each downlink frequency resource group can also be set according to the frequency offset between each downlink frequency resource group and the reference frequency point (for example, the frequency offset between the center frequency of the downlink frequency resource group and the reference frequency point).

[0126] In one possible implementation, the mapping relationship (including the mapping relationship between the uplink transmission waveform information and the frequency offset or the mapping relationship between the downlink frequency resource group and the uplink transmission waveform) may satisfy one of the following:

[0127] (1) The larger the absolute value of the frequency offset is, the shorter the duration of the high level of the uplink transmission waveform indicated by the corresponding uplink transmission waveform information is or the shorter the period of the high level-low level of the uplink transmission waveform indicated is.

[0128] That is to say, the greater the frequency difference between the center frequency of the target downlink frequency resource group and the reference frequency point, that is, the farther the target downlink frequency resource group is from the reference frequency point, the shorter the duration of the uplink transmission waveform ON indicated by the uplink transmission waveform information or the shorter the ON-OFF period of the uplink transmission waveform.

[0129] (2) The smaller the absolute value of the frequency offset is, the longer the duration of the high level of the uplink transmission waveform indicated by the corresponding uplink transmission waveform information is or the longer the period of the high level-low level of the uplink transmission waveform indicated is.

[0130] That is to say, the smaller the frequency difference between the center frequency of the target downlink frequency resource group and the reference frequency point, that is, the closer the target downlink frequency resource group is to the reference frequency point, the longer the duration of the uplink transmission waveform ON indicated by the uplink transmission waveform information or the longer the ON-OFF period of the uplink transmission waveform.

[0131] (3) The larger the absolute value of the frequency offset is, the longer the duration of the high level of the uplink transmission waveform indicated by the corresponding uplink transmission waveform information is or the longer the period of the high level-low level of the uplink transmission waveform indicated is.

[0132] That is to say, the greater the frequency difference between the center frequency of the target downlink frequency resource group and the reference frequency point, that is, the farther the target downlink frequency resource group is from the reference frequency point, the longer the duration of the uplink transmission waveform ON indicated by the uplink transmission waveform information or the longer the ON-OFF period of the uplink transmission waveform.

[0133] (4) The smaller the absolute value of the frequency offset is, the shorter the duration of the high level of the uplink transmission waveform indicated by the corresponding uplink transmission waveform information is or the shorter the period of the high level-low level of the uplink transmission waveform indicated is.

[0134] That is to say, the smaller the frequency difference between the center frequency of the target downlink frequency resource group and the reference frequency point, that is, the closer the target downlink frequency resource group is to the reference frequency point, the shorter the duration of the uplink transmission waveform ON indicated by the uplink transmission waveform information or the shorter the ON-OFF period of the uplink transmission waveform.

[0135] In a possible implementation, the method further includes: sending feedback information to the second device, wherein the feedback information is used to feed back uplink transmission waveform information or frequency information used by the first device. It is understandable that the second device can update the size and position of the downlink frequency resource group, i.e., the frequency, according to the feedback information.

[0136] In a possible implementation, after determining the target uplink transmission waveform information of the first device based on the reference frequency point and detecting the target downlink frequency resource group carrying the downlink control signal, the method further includes: sending an uplink transmission signal to the second device according to the target uplink transmission waveform information. It can be understood that sending an uplink transmission signal to the second device according to the target uplink transmission waveform information can verify whether the downlink control signal received by the first device is correct, and verify whether the determined target uplink transmission waveform information is correct, thereby improving the communication quality and reliability between the first device and the second device.

[0137] Fig.17 Another flow chart of a method for determining uplink transmission waveform information in an embodiment of the present application is shown. The method 1700 may be executed by a second device in signal transmission, wherein the second device may be a reading device of the first device, for example, Figure 1 The method is one of the first terminal 10, the network side device 13, etc., which is not limited in the embodiments of the present application. In other words, the method can be executed by software or hardware installed on the second device. Fig.17 As shown, the method may include the following steps.

[0138] S1710: The second device sends a downlink control signal to the first device on at least one target downlink frequency resource group.

[0139] The target downlink frequency resource group is used to determine the target uplink transmission waveform information of the first device.

[0140] The second device can be a reading device of the Internet of Things device. Optionally, the reading device can also be a handheld or fixed device that reads or writes tag information, that is, a terminal or base station that communicates with the tag; the reading device can also be a device with reading and writing functions, such as a reader / writer, which is not specifically limited in the embodiments of the present application.

[0141] In an embodiment of the present application, the second device can indicate the uplink transmission waveform information used by the first device as needed, and send a downlink control signal to the first device on at least one downlink frequency resource group corresponding to the uplink transmission waveform information, without carrying bit data indicating the uplink transmission waveform information in the downlink control signal, thereby implicitly indicating the uplink transmission waveform information used by the first device.

[0142] In the embodiment of the present application, by sending a downlink control signal through a downlink frequency resource group, the complexity of resource scheduling and the length of signaling indication can be reduced.

[0143] In a possible implementation manner, the second device sending a downlink control signal to the first device on at least one target downlink frequency resource group may include one of the following:

[0144] (1) The second device sends the downlink control signal on a single downlink frequency resource group according to pre-configuration information or pre-indication information.

[0145] (2) The second device sends the downlink control signal on multiple downlink frequency resource groups according to the pre-configuration information or the pre-indication information.

[0146] In this implementation, by sending a downlink control signal on a single downlink frequency resource group, the management and scheduling of multiple resource groups can be reduced, or sending a downlink control signal on multiple downlink frequency resource groups can increase the rate of signal transmission, and if a downlink frequency resource group is unavailable, other downlink frequency resource groups that are working normally can still continue to transmit the downlink control signal, then the first device can detect the downlink control signal normally, thereby ensuring the stability and reliability of the network. It should be noted that whether to send a downlink control signal on a single downlink frequency resource group or multiple downlink frequency resource groups can be determined according to actual conditions, and the embodiments of the present application do not make specific limitations.

[0147] In a possible implementation, the target attribute of the frequency resources occupied by the downlink frequency resource group is configured by a network-side device or predefined by a protocol; wherein the target attribute includes at least one of the following: the size of the frequency resources, the location of the frequency resources.

[0148] In a possible implementation manner, the method further includes: updating a target attribute of the frequency resources occupied by the downlink frequency resource group according to feedback information sent by the first device.

[0149] Regarding the above two implementations, it can be understood that the size of the frequency resources occupied by the downlink frequency resource group and / or the location of the frequency resources may be determined in one of the following ways:

[0150] (1) Configured by network-side devices;

[0151] (2) Protocol pre-definition;

[0152] (3) Updating the size of the frequency resource and / or the location of the frequency resource according to the feedback information sent by the first device.

[0153] In a possible implementation, the method further includes: the second device receives an uplink transmission signal sent by the first device, wherein the waveform of the uplink transmission signal is obtained according to the target uplink transmission waveform information. It can be understood that the uplink transmission signal received by the second device is sent by the first device according to the target uplink transmission waveform information, and the second device can verify whether the downlink control signal received by the first device is correct based on the uplink transmission signal, and verify whether the target uplink transmission waveform information determined by the first device is correct, thereby improving the communication quality and reliability between the first device and the second device.

[0154] Fig.18 A schematic diagram showing a structure of a device for determining uplink transmission waveform information provided by an embodiment of the present application is shown. Fig.18 As shown, the determination device 1800 mainly includes: a detection module 1801 and a first determination module 1802 .

[0155] In an embodiment of the present application, a detection module 1801 is used to detect a downlink control signal sent by a second device on at least one downlink frequency resource group; a first determination module 1802 is used to determine the target uplink transmission waveform information of the first device based on a reference frequency point and on the basis of detecting the target downlink frequency resource group carrying the downlink control signal, wherein the at least one downlink frequency resource group includes the target downlink frequency resource group.

[0156] In a possible implementation, the detection module 1801 is used for one of the following:

[0157] Detecting the downlink control signal on a single downlink frequency resource group according to pre-configuration information or pre-indication information;

[0158] The downlink control signal is detected on a plurality of downlink frequency resource groups according to the pre-configuration information or the pre-indication information.

[0159] In a possible implementation manner, the frequency of the reference frequency point includes one of the following:

[0160] The frequency of the reference frequency point is less than the lowest frequency of the single downlink frequency resource group;

[0161] The frequency of the reference frequency point is greater than the highest frequency of the single downlink frequency resource group;

[0162] The frequency of the reference frequency point is equal to the middle frequency of the multiple downlink frequency resource groups.

[0163] In a possible implementation manner, the reference frequency point includes one of the following:

[0164] Used to receive the frequency point of the excitation carrier sent by the second device;

[0165] Virtual frequency point.

[0166] In a possible implementation manner, the target uplink transmission waveform information includes at least one of the following:

[0167] The duration of the high level of the uplink transmission waveform in one cycle;

[0168] The high-low cycle time of the upstream transmission waveform.

[0169] In a possible implementation manner, the target uplink transmission waveform includes one of the following:

[0170] Waveform of amplitude-shift keying (ASK) modulation;

[0171] Waveform of binary amplitude keying OOK modulation.

[0172] In a possible implementation manner, the target uplink transmission waveform information includes:

[0173] The frequency set of the upstream transmission waveform.

[0174] In a possible implementation manner, the uplink transmission waveform includes one of the following:

[0175] Frequency shift keying FSK modulation waveform;

[0176] Waveform of Gaussian Minimum Shift Keying (GMSK) modulation.

[0177] In a possible implementation manner, the uplink transmission waveform includes one of the following:

[0178] Coded waveform;

[0179] Uncoded waveform.

[0180] In a possible implementation, the encoding method of the encoded waveform includes one of the following:

[0181] Miller coding;

[0182] Dual-phase space code FM0 code;

[0183] Manchester Manchester code.

[0184] In a possible implementation, the first determining module 1802 is configured to:

[0185] Acquire a target frequency offset between a center frequency of the target downlink frequency resource group and the reference frequency point;

[0186] Based on a preset mapping relationship between uplink transmission waveform information and frequency offset, the target uplink transmission waveform information corresponding to the target frequency offset is acquired.

[0187] In a possible implementation, the mapping relationship satisfies one of the following:

[0188] The larger the absolute value of the frequency offset is, the shorter the duration of the high level of the uplink transmission waveform indicated by the corresponding uplink transmission waveform information is or the shorter the cycle time of the high level-low level of the uplink transmission waveform indicated is;

[0189] The smaller the absolute value of the frequency offset is, the longer the duration of the high level of the uplink transmission waveform indicated by the corresponding uplink transmission waveform information is or the longer the cycle time of the high level-low level of the uplink transmission waveform indicated is;

[0190] The larger the absolute value of the frequency offset is, the longer the duration of the high level of the uplink transmission waveform indicated by the corresponding uplink transmission waveform information is or the longer the cycle time of the high level-low level of the uplink transmission waveform indicated is;

[0191] The smaller the absolute value of the frequency offset is, the shorter the duration of the high level of the uplink transmission waveform indicated by the corresponding uplink transmission waveform information is or the shorter the period of the high level-low level of the uplink transmission waveform indicated is.

[0192] In a possible implementation, the determining device 1800 further includes a second sending module 1803, and the second sending module 1803 is used to send feedback information to the second device, wherein the feedback information is used to feed back uplink transmission waveform information or frequency information used by the first device.

[0193] In a possible implementation, the determining device 1800 further includes a third sending module 1804, and the third sending module 1804 is configured to send an uplink transmission signal to the second device according to the target uplink transmission waveform information.

[0194] The device for determining the uplink transmission waveform information in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in the electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices other than a terminal. For example, the terminal may include but is not limited to the types of the terminal 11 listed above, and other devices may be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.

[0195] The device for determining uplink transmission waveform information provided in the embodiment of the present application can achieve Figure 5The various processes implemented by the first device in the method embodiment shown achieve the same technical effect, and will not be described again here to avoid repetition.

[0196] The method for determining uplink transmission waveform information provided in the embodiment of the present application may be performed by a device for determining uplink transmission waveform information. The device for determining uplink transmission waveform information provided in the embodiment of the present application is described by taking the method for determining uplink transmission waveform information performed by the device for determining uplink transmission waveform information as an example.

[0197] Fig.19 Another structural schematic diagram of the device for determining uplink transmission waveform information provided by an embodiment of the present application is shown as follows: Fig.19 As shown, the determining device 1900 mainly includes: a second determining module 1901 and a first sending module 1902 .

[0198] In an embodiment of the present application, the second determination module 1901 is used to determine at least one target downlink frequency resource group, and the target downlink frequency resource group is used to indicate the uplink transmission waveform information used by the first device; the first sending module 1901 is used to send a downlink control signal to the first device on at least one target downlink frequency resource group, wherein the target downlink frequency resource group is used to determine the target uplink transmission waveform information of the first device.

[0199] In a possible implementation, the first sending module 1902 may be used for one of the following:

[0200] Sending the downlink control signal on a single downlink frequency resource group according to pre-configuration information or pre-indication information;

[0201] The downlink control signal is sent on multiple downlink frequency resource groups according to the pre-configuration information or the pre-indication information.

[0202] In a possible implementation, the target attribute of the frequency resources occupied by the downlink frequency resource group is configured by a network-side device or predefined by a protocol; wherein the target attribute includes at least one of the following: the size of the frequency resources, the location of the frequency resources.

[0203] In a possible implementation, the determining device 1900 further includes a fourth sending module 1903, and the fourth sending module 1903 is used to update the target attribute of the frequency resources occupied by the downlink frequency resource group according to the feedback information sent by the first device.

[0204] In a possible implementation, the determining device 1900 further includes a receiving module 1904, and the receiving module 1904 is used to receive an uplink transmission signal sent by the first device, wherein the waveform of the uplink transmission signal is obtained according to the target uplink transmission waveform information.

[0205] The device for determining uplink transmission waveform information provided in the embodiment of the present application can achieve Fig.17 The various processes implemented by the second device in the method embodiment shown achieve the same technical effect, and will not be described again here to avoid repetition.

[0206] like Fig. 20 As shown, the embodiment of the present application further provides a communication device 2000, including a processor 2001 and a memory 2002, and the memory 2002 stores a program or instruction that can be run on the processor 2001. For example, when the communication device 2000 is a terminal, the program or instruction is executed by the processor 2001 to implement the various steps of the embodiment of the method for determining the uplink transmission waveform information, and can achieve the same technical effect. When the communication device 2000 is a network side device, the program or instruction is executed by the processor 2001 to implement the various steps of the embodiment of the method for determining the uplink transmission waveform information, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0207] The embodiment of the present application also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the following Figure 5 or Fig.17 The steps in the method embodiment shown. This terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this terminal embodiment and can achieve the same technical effect. Specifically, Fig.21 A schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present application.

[0208] The terminal 2100 includes but is not limited to: a radio frequency unit 2101, a network module 2102, an audio output unit 2103, an input unit 2104, a sensor 2105, a display unit 2106, a user input unit 2107, an interface unit 2108, a memory 2109 and at least some of the components of the processor 2110.

[0209] Those skilled in the art will appreciate that the terminal 2100 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 2110 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Fig.21The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0210] It should be understood that in the embodiment of the present application, the input unit 2104 may include a graphics processing unit (GPU) 21041 and a microphone 21042, and the graphics processor 21041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 2106 may include a display panel 21061, and the display panel 21061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 2107 includes a touch panel 21071 and at least one of other input devices 21072. The touch panel 21071 is also called a touch screen. The touch panel 21071 may include two parts: a touch detection device and a touch controller. Other input devices 21072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0211] In the embodiment of the present application, after receiving downlink data from the network side device, the RF unit 2101 can transmit the data to the processor 2110 for processing; in addition, the RF unit 2101 can send uplink data to the network side device. Generally, the RF unit 2101 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0212] The memory 2109 can be used to store software programs or instructions and various data. The memory 2109 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 2109 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM). The memory 2109 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0213] The processor 2110 may include one or more processing units; optionally, the processor 2110 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 2110.

[0214] The radio frequency unit 2101 is used to send a downlink control signal to the first device on at least one target downlink frequency resource group, wherein the target downlink frequency resource group is used to determine the target uplink transmission waveform information of the first device.

[0215] The processor 2110 is configured to:

[0216] Detecting a downlink control signal sent by a second device on at least one downlink frequency resource group;

[0217] Based on the reference frequency point and the detected target downlink frequency resource group carrying the downlink control signal, target uplink transmission waveform information of the first device is determined, wherein the at least one downlink frequency resource group includes the target downlink frequency resource group.

[0218] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description in the method embodiment and achieve the same or corresponding technical effect. To avoid repetition, it will not be repeated here.

[0219] The embodiment of the present application also provides a network side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the following Figure 5 or Fig.17 The steps of the method embodiment shown. This network side device embodiment corresponds to the above network side device method embodiment, and each implementation process and implementation mode of the above method embodiment can be applied to this network side device embodiment and can achieve the same technical effect.

[0220] Specifically, the embodiment of the present application also provides a network side device. Fig. 22 As shown, the network side device 2200 includes: an antenna 221, a radio frequency device 222, a baseband device 223, a processor 224 and a memory 225. The antenna 221 is connected to the radio frequency device 222. In the uplink direction, the radio frequency device 222 receives information through the antenna 221 and sends the received information to the baseband device 223 for processing. In the downlink direction, the baseband device 223 processes the information to be sent and sends it to the radio frequency device 222. The radio frequency device 222 processes the received information and sends it out through the antenna 221.

[0221] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 223, which includes a baseband processor.

[0222] The baseband device 223 may include, for example, at least one baseband board on which a plurality of chips are arranged. Fig. 22 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 225 through a bus interface to call the program in the memory 225 to execute the network device operations shown in the above method embodiment.

[0223] The network side device may further include a network interface 226, which is, for example, a Common Public Radio Interface (CPRI).

[0224] Specifically, the network side device 2200 of the embodiment of the present invention further includes: instructions or programs stored in the memory 225 and executable on the processor 224, and the processor 224 calls the instructions or programs in the memory 225 to execute. Fig.18 or Fig.19 The methods executed by the modules shown achieve the same technical effects, and therefore will not be described here in detail to avoid repetition.

[0225] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the embodiment of the method for determining the uplink transmission waveform information is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0226] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0227] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned embodiment of the method for determining the uplink transmission waveform information, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0228] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0229] The embodiment of the present application further provides a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned embodiment of the method for determining the uplink transmission waveform information, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0230] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0231] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general hardware platform, and of course, can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, disk, CD, etc.), including several instructions to enable a terminal or a network-side device to execute the methods described in each embodiment of the present application.

[0232] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of the present application and the scope of protection of the claims, and these implementation methods are all within the protection of the present application.

Claims

1. A method for determining uplink transmission waveform information, characterized in that: include: The first device detects a downlink control signal sent by the second device on at least one downlink frequency resource group; Based on the reference frequency point and the detected target downlink frequency resource group carrying the downlink control signal, target uplink transmission waveform information of the first device is determined, wherein the at least one downlink frequency resource group includes the target downlink frequency resource group.

2. The method according to claim 1, characterized in that The first device detecting a downlink control signal sent by the second device on at least one downlink frequency resource group includes one of the following: The first device detects the downlink control signal on a single downlink frequency resource group according to pre-configuration information or pre-indication information; The first device detects the downlink control signal on multiple downlink frequency resource groups according to the pre-configuration information or the pre-indication information.

3. The method according to claim 2, characterized in that The frequency of the reference frequency point includes one of the following: The frequency of the reference frequency point is less than the lowest frequency of the single downlink frequency resource group; The frequency of the reference frequency point is greater than the highest frequency of the single downlink frequency resource group; The frequency of the reference frequency point is equal to the middle frequency of the multiple downlink frequency resource groups.

4. The method according to claim 3, characterized in that The reference frequency point includes one of the following: Used to receive the frequency point of the excitation carrier sent by the second device; Virtual frequency point.

5. The method according to claim 1, characterized in that The target uplink transmission waveform information includes at least one of the following: The duration of the high level of the uplink transmission waveform in one cycle; The high-low cycle time of the upstream transmission waveform.

6. The method according to claim 5, characterized in that The target uplink transmission waveform includes one of the following: Waveform of amplitude-shift keying (ASK) modulation; Waveform of binary amplitude keying OOK modulation.

7. The method according to claim 1, characterized in that The target uplink transmission waveform information includes: The frequency set of the uplink transmission waveform.

8. The method according to claim 7, characterized in that The uplink transmission waveform includes one of the following: Frequency shift keying FSK modulation waveform; Waveform of Gaussian Minimum Shift Keying (GMSK) modulation.

9. The method according to claim 6 or 8, characterized in that: The uplink transmission waveform includes one of the following: Coded waveform; Uncoded waveform.

10. The method according to claim 9, characterized in that The encoding method of the coded waveform includes one of the following: Miller coding; Dual-phase space code FM0 code; Manchester Manchester code.

11. The method according to any one of claims 1 to 10, characterized in that: The determining target uplink transmission waveform information of the first device based on the reference frequency point and the detected target downlink frequency resource group carrying the downlink control signal includes: Acquire a target frequency offset between a center frequency of the target downlink frequency resource group and the reference frequency point; Based on a preset mapping relationship between uplink transmission waveform information and frequency offset, the target uplink transmission waveform information corresponding to the target frequency offset is acquired.

12. The method according to claim 11, characterized in that The mapping relationship satisfies one of the following: The larger the absolute value of the frequency offset is, the shorter the duration of the high level of the uplink transmission waveform indicated by the corresponding uplink transmission waveform information is or the shorter the cycle time of the high level-low level of the uplink transmission waveform indicated is; The smaller the absolute value of the frequency offset is, the longer the duration of the high level of the uplink transmission waveform indicated by the corresponding uplink transmission waveform information is or the longer the cycle time of the high level-low level of the uplink transmission waveform indicated is; The larger the absolute value of the frequency offset is, the longer the duration of the high level of the uplink transmission waveform indicated by the corresponding uplink transmission waveform information is or the longer the cycle time of the high level-low level of the uplink transmission waveform indicated is; The smaller the absolute value of the frequency offset is, the shorter the duration of the high level of the uplink transmission waveform indicated by the corresponding uplink transmission waveform information is or the shorter the period of the high level-low level of the uplink transmission waveform indicated is.

13. The method according to any one of claims 1 to 10, characterized in that: The method further comprises: Feedback information is sent to the second device, wherein the feedback information is used to feed back uplink transmission waveform information or frequency information used by the first device.

14. The method according to any one of claims 1 to 10, characterized in that: After determining the target uplink transmission waveform information of the first device based on the reference frequency point and detecting the target downlink frequency resource group carrying the downlink control signal, the method further includes: An uplink transmission signal is sent to the second device according to the target uplink transmission waveform information.

15. A method for determining uplink transmission waveform information, characterized in that: include: The second device sends a downlink control signal to the first device on at least one target downlink frequency resource group, wherein the target downlink frequency resource group is used to determine target uplink transmission waveform information of the first device.

16. The method according to claim 15, characterized in that The second device sending a downlink control signal to the first device on at least one target downlink frequency resource group includes one of the following: The second device sends the downlink control signal on a single downlink frequency resource group according to pre-configuration information or pre-indication information; The second device sends the downlink control signal on multiple downlink frequency resource groups according to the pre-configuration information or the pre-indication information.

17. The method according to claim 15 or 16, characterized in that The target attribute of the frequency resources occupied by the downlink frequency resource group is configured by a network-side device or predefined by a protocol; wherein the target attribute includes at least one of the following: the size of the frequency resources, the location of the frequency resources.

18. The method according to claim 17, characterized in that The method further comprises: According to the feedback information sent by the first device, a target attribute of the frequency resources occupied by the downlink frequency resource group is updated.

19. The method according to any one of claims 15 to 18, characterized in that The method further comprises: The second device receives the uplink transmission signal sent by the first device, wherein the waveform of the uplink transmission signal is obtained according to the target uplink transmission waveform information.

20. A device for determining uplink transmission waveform information, characterized in that: include: A detection module, configured to detect a downlink control signal sent by a second device on at least one downlink frequency resource group; The first determination module is used to determine the target uplink transmission waveform information of the first device with reference to the frequency point and based on the detection of the target downlink frequency resource group carrying the downlink control signal, wherein the at least one downlink frequency resource group includes the target downlink frequency resource group.

21. A device for determining uplink transmission waveform information, characterized in that: include: A second determination module determines at least one target downlink frequency resource group, where the target downlink frequency resource group is used to indicate uplink transmission waveform information used by the first device; The first sending module is used to send a downlink control signal to the first device on the at least one target downlink frequency resource group, wherein the target downlink frequency resource group is used to determine the target uplink transmission waveform information of the first device.

22. A communication device, characterized in that: It includes a processor and a memory, the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, it implements the steps of the method for determining the uplink transmission waveform information as described in any one of claims 1 to 14, or implements the steps of the method for determining the uplink transmission waveform information as described in any one of claims 15 to 19.

23. A readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, it implements the steps of the method for determining the uplink transmission waveform information as described in any one of claims 1 to 14, or implements the steps of the method for determining the uplink transmission waveform information as described in any one of claims 15 to 19.

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